Publications by authors named "Kun Song"

303 Publications

Saltwater fish but not freshwater fish consumption is positively related to handgrip strength: The TCLSIH Cohort Study.

Nutr Res 2021 Jun 25;90:46-54. Epub 2021 Apr 25.

Nutritional Epidemiology Institute and School of Public Health, Tianjin Medical University, Tianjin, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China; Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin, China; Health Management Centre, Tianjin Medical University General Hospital, Tianjin, China. Electronic address:

Fish contain many important nutrients and are primarily known for high n-3 polyunsaturated fatty acids (n-3 PUFA) content. Studies have shown that supplementation of fish oil-derived n-3 PUFA improves muscle mass and strength. Here, we hypothesized that fish consumption might improve muscle strength. To test this hypothesis, we performed this cross-sectional study (n = 29,084) in Tianjin, China. The frequency of fish consumption was assessed using a valid self-administered food frequency questionnaire. Handgrip strength (HGS) was used as the indicator of muscle strength, and was measured using a handheld digital dynamometer. Analysis of covariance was used to examine the relationship between fish consumption and HGS. In men, after adjusted potential confounding factors, the least square means (95% confidence intervals) of HGS across saltwater fish consumption categories were 41.5 (41.1, 43.7) kg for <1 time/week, 44.6 (43.2, 45.8) kg for 1 time/week, and 44.7 (43.3, 46.1) kg for ≥2 to 3 times/week (P for trend <0.001). In men, the least square means (95% confidence intervals) of HGS across the ascending quartiles of dietary n-3 PUFA intake were 43.6 (43.2, 44.4) kg, 43.7 (43.2, 44.6) kg, 44.4 (43.0, 45.8) kg, and 44.6 (43.1, 46.0) kg (P for trend <0.01). The results showed that saltwater fish consumption was positively related to HGS in men, but not in women, suggesting that saltwater fish contain nutrients that may be used to improve HGS.
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http://dx.doi.org/10.1016/j.nutres.2021.04.002DOI Listing
June 2021

Consumption of Preserved Egg Is Associated with Modestly Increased Risk of Nonalcoholic Fatty Liver Disease in Chinese Adults.

J Nutr 2021 May 28. Epub 2021 May 28.

Nutritional Epidemiology Institute and School of Public Health, Tianjin Medical University, Tianjin, China.

Background: Although preserved egg is a traditional Chinese delicacy widely consumed in China and Southeast Asian countries, whether habitual preserved egg consumption is associated with nonalcoholic fatty liver disease (NAFLD) remains unknown.

Objectives: This study aimed to examine the association between preserved egg consumption and risk of NAFLD in a cohort of Chinese adults.

Methods: This prospective cohort study included 15,883 participants aged 19-88 y (58% women) from the TCLSIH (Tianjin Chronic Low-grade Systemic Inflammation and Health) cohort study who were free of liver diseases, cancer, and cardiovascular disease at baseline. Preserved egg consumption was assessed using an FFQ at baseline. NAFLD was diagnosed by transabdominal sonography during an annual health examination. Multivariable Cox proportional hazards regression models were used to calculate HRs and 95% CIs across categories of preserved egg consumption.

Results: During 56,002 person-years of follow-up, 3683 first incident cases of NAFLD were recorded. After adjustment for sociodemographic characteristics, lifestyle risk factors, total energy intake, egg intake, and eating patterns, the multivariable HRs (95% CIs) of incident NAFLD according to categories of preserved egg consumption were 1.00 (reference) for never, 1.05 (0.98, 1.14) for <1 time/wk, 1.09 (0.96, 1.24) for 1 time/wk, and 1.26 (1.09, 1.46) for ≥2 times/wk (P-trend < 0.01). The results were robust to a series of sensitivity analyses.

Conclusions: Habitual preserved egg consumption is associated with a modestly higher risk of NAFLD among the Chinese adult population. The mechanism underlying this association warrants further research.This trial was registered at www.umin.ac.jp/ctr/ as UMIN000027174.
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http://dx.doi.org/10.1093/jn/nxab163DOI Listing
May 2021

Progress in the management of ovarian granulosa cell tumor: A review.

Acta Obstet Gynecol Scand 2021 May 24. Epub 2021 May 24.

Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.

Ovarian granulosa cell tumor (GCT) is a rare, low-grade malignant tumor that accounts for 70% of the sex cord-stromal tumors, it has two histopathological types with different clinical and biological features: adult GCT and juvenile GCT. Most women diagnosed with the adult GCT have a favorable prognosis, with a 5-year survival rate of 97-98%, but adult GCT has a feature of late relapse, the recurrence time could be more than 20 years after diagnosis. Juvenile GCT had a survival rate of 97% in stage I and a 5-year survival rate of 0%-22% in advanced stage with earlier relapse than adult GCT. Consequently, the scenario emphasizes the need for early diagnosis, standardized treatment protocols and long-term follow-up. However, there is a lack of consensus regarding accurate diagnosis of GCT and adjuvant treatment. Furthermore, GCT tends to occur in young women, which emphasizes the viability of fertility-sparing surgery. The current review performed a systematic literature review of 60 articles in order to summarize the latest advancements of GCT, with an emphasis on the molecular pathogenesis and survival after fertility-sparing surgery. We found that young women with fertility-sparing surgery had a desirable reproductive and survival outcome compared to radical surgery.
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http://dx.doi.org/10.1111/aogs.14189DOI Listing
May 2021

Hierarchy in sensory processing reflected by innervation balance on cortical interneurons.

Sci Adv 2021 May 14;7(20). Epub 2021 May 14.

Center for Brain Science of Shanghai Children's Medical Center, Department of Anatomy and Physiology, Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.

Sensory processing is subjected to modulation by behavioral contexts that are often mediated by long-range inputs to cortical interneurons, but their selectivity to different types of interneurons remains largely unknown. Using rabies-virus tracing and optogenetics-assisted recording, we analyzed the long-range connections to various brain regions along the hierarchy of visual processing, including primary visual cortex, medial association cortices, and frontal cortices. We found that hierarchical corticocortical and thalamocortical connectivity is reflected by the relative weights of inputs to parvalbumin-positive (PV) and vasoactive intestinal peptide-positive (VIP) neurons within the conserved local circuit motif, with bottom-up and top-down inputs preferring PV and VIP neurons, respectively. Our algorithms based on innervation weights for these two types of local interneurons generated testable predictions of the hierarchical position of many brain areas. These results support the notion that preferential long-range inputs to specific local interneurons are essential for the hierarchical information flow in the brain.
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http://dx.doi.org/10.1126/sciadv.abf5676DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8121429PMC
May 2021

No obvious association exists between mean platelet volume and hypertension subtypes.

Biomark Med 2021 Jun 14;15(8):577-584. Epub 2021 May 14.

Tianjin Key Laboratory of Lung Cancer Metastasis & Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, 300052, PR China.

To determine the association between mean platelet volume (MPV) and hypertension subtypes. 44,281 Chinese individuals were enrolled in this cross-sectional study. The mean blood pressure decreased with increasing MPV in females (p = 0.001) and increased MPV seemed to be a potential protective factor for isolated diastolic hypertension in models 1 and 2. The OR (CI) was 0.878 (0.789-0.976) for model 1 and 0.880 (0.789-0.981) for model 2 in males and 0.646 (0.495-0.841) for model 1 and 0.657 (0.503-0.858) for model 2 in females, when MPV was analyzed as a categorical variable. The OR (CI) was 0.947 (0.911-0.985) for Model 1 and 0.947 (0.910-0.985) for Model 2 in males, and 0.886 (0.807-0.973) for Model 1 and 0.892 (0.813-0.978) for Model 2 in females when MPV was analyzed as a continuous variable. However, the statistical difference of OR disappeared when we added blood-related covariates in Model 3. No obvious association exists between MPV and hypertension subtypes. Other blood parameters might have a greater impact on hypertension subtypes.
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http://dx.doi.org/10.2217/bmm-2020-0305DOI Listing
June 2021

Clinical Use of Propranolol Reduces Biomarkers of Proliferation in Gastric Cancer.

Front Oncol 2021 26;11:628613. Epub 2021 Apr 26.

Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China.

Gastric cancer has one of the highest mortality rate in the world, but the treatment is still limited. Building on previous studies, mechanistic studies on propranolol in gastric cancer mice models and gastric cancer patients were performed. Propranolol inhibited the proliferation of gastric cancer cells in a time- and concentration-dependent manner. Consistent findings were observed in MFC tumors engrafted 615 mice, which were treated with propranolol at 10 mg/kg daily for 14 days. Propranolol inhibited the phosphorylation of AKT, MEK, and ERK proteins than control in mice tumor tissues respectively (p-AKT 26.16 vs. 56.82, = 0.0196, p-MEK 28.27 vs. 59.28, = 0.1102, p-ERK 48.2 vs. 107.4, P = 0.0062). Propranolol had antiproliferative activity in gastric cancer patients receiving 60 mg daily for 7 days prior to surgery(ki67 44.8 vs 125.3 for placebo; P = 0.02). Phosphorylated AKT, MEK, and ERK did not differ between propranolol and placebo treatment in gastric cancer patients. The expression of molecules on CD8 T cells was not changed both in mice model and patients nor was there a statistically significant difference in CD8 T cell subsets in patients, although suggestion of an effect was evident. These results prove that propranolol may inhibit the growth of gastric cancer in mice model and patients and the possible mechanism was inhibiting the AKT and MAPK pathways, but the frequency of tumor infiltration CD8 T cells did not increase significantly.
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http://dx.doi.org/10.3389/fonc.2021.628613DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8108985PMC
April 2021

Hyperemesis gravidarum induced refeeding syndrome causes blood cell destruction: a case report and literature review.

BMC Pregnancy Childbirth 2021 May 9;21(1):366. Epub 2021 May 9.

Department of Obstetrics Gynecology, Cheeloo College of Medicine, Qilu Hospital, Shandong University, Shandong, 250012, Jinan, China.

Background: Hyperemesis gravidarum (HG) is a common complication during pregnancy, however, HG associated simultaneous onset of blood cell destruction due to electrolyte abnormalities is rare. In this case, a woman with refeeding syndrome (RFS) secondary to electrolyte abnormalities caused by severe HG was diagnosed and managed in our hospital.

Case Presentation: A 29-year old woman was sent to the local hospitals because of severe HG with appetite loss, weight reduction, general fatigue, and she was identified to have severe electrolyte abnormalities. However, the electrolyte abnormalities were not corrected promptly, and then she had the symptoms of stillbirth, altered mental status, visual hallucination, hemolytic anemia and thrombocytopenia. After transferred to our hospital, we continued to correct the electrolyte abnormalities and the labor induction was performed as soon as possible. The symptoms of blood cell destruction were relieved obviously, and the patient discharged four days later. The electrolyte disturbances and physio-metabolic abnormalities caused by HG helped us diagnose this case as RFS.

Conclusions: This case emphasizes that patients with RFS should be diagnosed appropriately and intervened promptly in order to prevent electrolyte imbalance induced blood cell destruction.
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http://dx.doi.org/10.1186/s12884-021-03821-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8108454PMC
May 2021

Effect of early-life antibiotic exposure and IL-13 polymorphism on atopic dermatitis phenotype.

Pediatr Allergy Immunol 2021 May 7. Epub 2021 May 7.

Department of Pediatrics, Childhood Asthma Atopy Center, Humidifier Disinfectant Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.

Background: Although atopic dermatitis (AD) is associated with certain gene variants, the rapidly increasing incidence of AD suggests that environmental factors contribute to disease development. In this study, we investigated the association of AD incidence and phenotype with antibiotic exposure within 6 months of age, considering the dose administered and genetic risk.

Methods: This study included 1637 children from the COCOA cohort. Pediatric allergists assessed the presence of AD at each visit and obtained information about antibiotic exposure for more than 3 days. IL-13 (rs20541) polymorphism was genotyped by the TaqMan method. We stratified the AD phenotypes into four groups and used multinomial logistic regression models for analysis.

Results: Antibiotic exposure within 6 months of age was found to increase the risk of AD within 3 years of life (aOR = 1.40; 95% CI, 1.09-1.81) in dose-dependent manner. Antibiotic exposure more than twice increased the risk of the early-persistent AD phenotype (aOR = 2.50; 95% CI, 1.35-4.63). There was a weak interaction between genetic polymorphisms and environmental factors on the development of AD (p for interaction = 0.06). Children with the IL-13 (rs20541) GA + AA genotype have a higher risk of the early-persistent AD phenotype when exposed to antibiotics more than twice than those with the IL-13 (rs20541) GG genotype and without exposure to antibiotics (aOR = 4.73; 95% CI, 2.01-11.14).

Conclusion: Antibiotic exposure within 6 months was related to the incidence of early-persistent AD and a dose-dependent increase in the incidence of AD in childhood, whose effect was modified by the IL-13 (rs20541) genotype.
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http://dx.doi.org/10.1111/pai.13531DOI Listing
May 2021

Dog Ownership in Early Life Increased the Risk of Nonatopic Asthma in Children.

Int Arch Allergy Immunol 2021 May 6:1-9. Epub 2021 May 6.

Department of Pediatrics, Childhood Asthma Atopy Center, Humidifier Disinfectant Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.

Background: It is still debatable whether dog ownership during early childhood is a risk factor for the development of allergic diseases.

Objective: We investigated the association of dog ownership in early life with sensitization and asthma in childhood.

Methods: Data from the Cohort for Childhood Origin of Asthma and Allergic diseases were used to investigate the association between dog ownership at any time from pregnancy to 1 year of age and sensitization to aeroallergens at 3 and 7 years old, bronchial hyperresponsiveness (BHR), and asthma at 7 years old. We analyzed the cytokine levels in cord blood (CB) and indoor environmental measurement concentrations in the mother's residence obtained at 36 weeks of pregnancy.

Results: Sensitization to dogs at age 3 and 7 did not differ between dog ownership and nonownership, but dog ownership during early life decreased the risk of sensitization to aeroallergens at age 7 (aOR = 0.44, 95% CI 0.21-0.90). Dog ownership significantly increased the risk of nonatopic BHR (aOR = 2.86; 95% CI 1.32-6.21). In addition, dog ownership was associated with asthma, especially nonatopic asthma at 7 years old (aOR = 2.73, 95% CI 1.02-7.32; aOR = 7.05, 95% CI 1.85-26.90, respectively). There were no significant differences in the concentrations of IL-13 or interferon-γ in CB or indoor environmental measurements according to dog ownership during pregnancy.

Conclusion: Early-life dog exposure in this birth cohort has been shown to reduce atopy but increase the risk of nonatopic BHR and nonatopic asthma at 7 years old.
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http://dx.doi.org/10.1159/000516057DOI Listing
May 2021

The consumption of wholegrain is related to depressive symptoms among Chinese adults: a cross-sectional study.

Eur J Clin Nutr 2021 Apr 30. Epub 2021 Apr 30.

Nutritional Epidemiology Institute and School of Public Health, Tianjin Medical University, Tianjin, China.

Background: Wholegrains contribute a range of beneficial nutrients, such as dietary fiber and several minerals and vitamins, that are beneficial to depressive symptoms. However, there are a few studies aimed at exploring whether a wholegrain diet is related to depressive symptoms. We conducted this study to investigate the relationship between wholegrains consumption and depressive symptoms.

Methods: This cross-sectional study included a total of 24,776 (mean age: 39.9 years, age range: 18.1-91.3 years; males, 54.1%) inhabitants living in Tianjin, China. Wholegrains consumption was assessed using a valid self-administered food frequency questionnaire. Depressive symptoms were evaluated using the Chinese version of Zung Self-Rating Depression Scale (SDS) and the cutoff point was set at 45. Multiple logistic regression analysis was used to estimate the relationship between wholegrains consumption and depressive symptoms.

Results: The prevalence of depressive symptoms was 19.1% and 22.4% in males and females, respectively. After adjustments for potential confounding factors, the odds ratios (95% confidence intervals) of depressive symptoms across wholegrains consumption were 0.77 (0.65-0.91) for <1 time/week, 0.73 (0.62-0.86) for 1 time/week and 0.68 (0.59-0.79) for ≥2 time/week in males compared with the control group (almost never). In females, the odds ratios (95% confidence intervals) were 0.86 (0.71-1.04) for <1 time/week, 0.94 (0.78-1.13) for 1 time/week, and 0.76 (0.65-0.91) for ≥2 time/week. Similar results were observed when we use other cut-offs (SDS ≥ 40 and 50) to define depressive symptoms.

Conclusion: This study first demonstrated that the higher consumption of wholegrains might have effects on the prevention and improvement of depressive symptoms. Prospective or intervention studies are needed to confirm these findings.
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http://dx.doi.org/10.1038/s41430-021-00917-2DOI Listing
April 2021

Retrospective Cohort Study of Intraoperative Administration of Sustained-Release 5-Fluorouracil Implants in Advanced Gastric Cancer Patients.

Front Pharmacol 2021 13;12:659258. Epub 2021 Apr 13.

Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, China.

5-fluorouracil (5-FU) is basically used in the field of postoperative chemotherapy of gastric cancer (GC), the goal of this study was to evaluate improvement of long-term survival rate among GC patients after the 5-FU implants treatment. The study included 145 patients with gastric cancer who received postoperative chemotherapy with 5-FU implants and had complete follow-up information. According to the sex, age and clinical stage of 5-FU implants group, 74 patients were matched as the control group at the same time. In the study, we compared the 5-year overall survival rate with progression-free survival rate in the two groups, and the drug safety for both groups during the treatment was also compared. The median follow-up time was 85 months (range 60-116 months). 31 patients (21.38%) died of tumor recurrence in 5-FU implants group and 21 (28.38%) in control group. In the control group, metastatic lesions were found in the small intestine, left adrenal gland and peritoneum in three patients. The 5-year progression-free survival (PFS) rate was 79.71% in 5-FU group and 67.12% in control ( = 0.0045). The 5-year overall survival (OS) rate was 77.68% in 5-FU implants group and 64.87% in control ( = 0.0159). Both the 5-years OS and PFS rates in 5-FU group were better than control group without significant side effect. 5-FU implants may improve 5-years OS and PFS rates after surgery in gastric cancer patients, while good safety profile suggests it could be reliable.
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http://dx.doi.org/10.3389/fphar.2021.659258DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8076801PMC
April 2021

Design of Multifunctional Janus Metasurface Based on Subwavelength Grating.

Nanomaterials (Basel) 2021 Apr 19;11(4). Epub 2021 Apr 19.

Smart Materials Lab, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710129, China.

In this paper, a Janus metasurface is designed by breaking the structural symmetry based on the polarization selection property of subwavelength grating. The structure comprises three layers: a top layer having a metallic nanostructure, a dielectric spacer, and a bottom layer having subwavelength grating. For a forward incidence, the metal-insulator-metal (MIM) structure operates as a gap plasmonic cavity if the linearly polarized (LP) component is parallel to the grating wires. It also acts as a high-efficiency dual-layer grating polarizer for the orthogonal LP component. For the backward incidence, the high reflectance of the grating blocks the function of the gap plasmonic cavity, leading to its pure functioning as a polarizer. A bifunctional Janus metasurface for 45 degrees beam deflector and polarizer, with a transmission of 0.87 and extinction ratio of 3840, is designed at 1.55 μm and is investigated to prove the validity of the proposed strategy. Moreover, the proposed metasurface can be cascaded to achieve more flexible functions since these functions are independent in terms of operational mechanism and structural parameters. A trifunctional Janus metasurface that acts as a focusing lens, as a reflector, and as a polarizer is designed based on this strategy. The proposed metasurface and the design strategy provide convenience and flexibility in the design of multifunctional, miniaturized, and integrated optical components for polarization-related analysis and for detection systems.
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http://dx.doi.org/10.3390/nano11041034DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8073647PMC
April 2021

Light-To-Moderate Raw Garlic Consumption Frequency Is Inversely Associated With Thickened Carotid Intima-Media Thickness: A Population-Based Study.

Front Nutr 2021 31;8:648821. Epub 2021 Mar 31.

Nutritional Epidemiology Institute and School of Public Health, Tianjin Medical University, Tianjin, China.

Previous animal and clinical studies have reported beneficial effects of garlic preparations on carotid intima-media thickness (cIMT). However, no epidemiological study has yet investigated the association between dietary raw garlic consumption and cIMT in the general population. The objective of this study was investigating the association between dietary raw garlic consumption and thickened cIMT in Chinese adults. This cross-sectional study used data from the Tianjin Chronic Low-grade Systemic Inflammation and Health Cohort Study. A total of 4,329 general adults from 2015 to 2017 were included in this study. Frequency of consumption of raw garlic was summarized as four categories for analysis: < 1 time/week, 1 time/week, 2-3 times/week, ≥4 times/week with a validated food frequency questionnaire. The thickened cIMT was defined as common carotid artery IMT ≥ 1.0 mm or a carotid bifurcation IMT ≥ 1.2 mm by ultrasonography. Multivariable logistic regression analysis was used to examine the association between frequency of raw garlic consumption and thickened cIMT. The prevalence of thickened cIMT is 22.9% among these participants. The adjusted odds ratios (95% confidence intervals) associated with the different frequencies were 1.00 (reference) for < 1 time/week, 0.74 (0.59, 0.94) for 1 time/week, 0.71 (0.55, 0.92) for 2-3 times/week, and 0.94 (0.71, 1.25) for ≥ 4 times/week. Light-to-moderate raw garlic consumption was inversely associated with thickened cIMT, whereas greater raw garlic consumption (i.e., ≥4 times/week) was not associated with thickened cIMT. Future longitudinal studies should be conducted to test these findings.
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http://dx.doi.org/10.3389/fnut.2021.648821DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8044311PMC
March 2021

Adaptive Neighborhood Metric Learning.

IEEE Trans Pattern Anal Mach Intell 2021 Apr 15;PP. Epub 2021 Apr 15.

This paper proposes a novel distance metric learning algorithm, named adaptive neighborhood metric learning (ANML). In ANML, we design two thresholds to adaptively identify the inseparable similar and dissimilar samples in the training procedure, thus inseparable sample removing and metric parameter learning are implemented in the same procedure. Due to the non-continuity of the proposed ANML, we develop a log-exp mean function to construct a continuous formulation to surrogate it. The proposed method has interesting properties. For example, when ANML is used to learn the linear embedding, current famous metric learning algorithms such as the large margin nearest neighbor (LMNN) and neighbourhood components analysis (NCA) are the special cases of the proposed ANML by setting the parameters different values. Besides, compared with LMNN and NCA, ANML has a broader searching space which may contain better solutions. When it is used to learn deep features, the state-of-the-art deep metric learning algorithms such as Triplet loss, Lifted structure loss, and Multi-similarity loss become the special cases of our method. Furthermore, the proposed log-exp mean function gives a new perspective to review deep metric learning methods such as Prox-NCA and N-pairs loss. Experiments are conducted to demonstrate the effectiveness of the proposed method.
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http://dx.doi.org/10.1109/TPAMI.2021.3073587DOI Listing
April 2021

Light scattering pattern specific convolutional network static cytometry for label-free classification of cervical cells.

Cytometry A 2021 Jun 22;99(6):610-621. Epub 2021 Apr 22.

School of Microelectronics, Shandong University, Jinan, China.

Cervical cancer is a major gynecological malignant tumor that threatens women's health. Current cytological methods have certain limitations for cervical cancer early screening. Light scattering patterns can reflect small differences in the internal structure of cells. In this study, we develop a light scattering pattern specific convolutional network (LSPS-net) based on deep learning algorithm and integrate it into a 2D light scattering static cytometry for automatic, label-free analysis of single cervical cells. An accuracy rate of 95.46% for the classification of normal cervical cells and cancerous ones (mixed C-33A and CaSki cells) is obtained. When applied for the subtyping of label-free cervical cell lines, we obtain an accuracy rate of 93.31% with our LSPS-net cytometric technique. Furthermore, the three-way classification of the above different types of cells has an overall accuracy rate of 90.90%, and comparisons with other feature descriptors and classification algorithms show the superiority of deep learning for automatic feature extraction. The LSPS-net static cytometry may potentially be used for cervical cancer early screening, which is rapid, automatic and label-free.
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http://dx.doi.org/10.1002/cyto.a.24349DOI Listing
June 2021

Does a high intake of green leafy vegetables protect from NAFLD? Evidence from a large population study.

Nutr Metab Cardiovasc Dis 2021 Jun 2;31(6):1691-1701. Epub 2021 Feb 2.

Nutritional Epidemiology Institute and School of Public Health, Tianjin Medical University, Tianjin, China; Health Management Centre, Tianjin Medical University General Hospital, Tianjin, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China; Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin, China. Electronic address:

Background And Aims: Results of in vitro and in vivo studies showed that green leafy vegetables (GLV) could attenuate liver steatosis. However, little is known regarding the association between GLV intake and nonalcoholic fatty liver disease (NAFLD) in human. We examined the association of GLV intake with NAFLD in a large-scale adult population.

Methods And Results: This cross-sectional study investigated 26,891 adults in China who participated in health examinations from 2013 to 2017. Newly diagnosed NAFLD was detected by liver ultrasonography. Dietary intake was assessed by using a validated and standardized food frequency questionnaire. Multivariable logistic regression models were used to estimate odds ratios (ORs) and 95% confidence intervals (CIs) across categories of GLV intake. After adjustment for sociodemographic characteristics, lifestyle factors, and other dietary intakes, the OR (95% CI) for comparing the highest vs. lowest GLV intake categories (≥7 times/week vs. almost never) was 0.72 (0.59, 0.90) (P < 0.0001). In addition, a linear inverse association was demonstrated between GLV intake and NAFLD in women (P for trend = 0.04), but ORs for any intake category did not reach significance. Stratified analyses suggested a potential effect modification by obesity status; the ORs (95% CIs) for comparing the highest vs. lowest GLV intake categories was 0.72 (0.54, 0.97) in normal/overweight individuals and 1.04 (0.65, 1.65) in obese individuals (P-interaction < 0.0001).

Conclusion: This large population-based study shows that high GLV intake is inversely associated with NAFLD, particularly in women and non-obese participants.
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http://dx.doi.org/10.1016/j.numecd.2021.01.009DOI Listing
June 2021

Higher plain water intake is related to lower newly diagnosed nonalcoholic fatty liver disease risk: a population-based study.

Eur J Clin Nutr 2021 Apr 9. Epub 2021 Apr 9.

Health Management Centre, Tianjin Medical University General Hospital, Tianjin, China.

Background/objectives: High plain water intake (PWI) lowered body weight, reduced total energy intake, and increased fat oxidation and energy consumption. Because such factors are closely linked to metabolic disorders, which are the main risk factors for nonalcoholic fatty liver disease (NAFLD) onset, it was speculated that higher PWI was associated with a lower risk of NAFLD. However, no prior human studies have examined such relationship. Therefore, the purpose of this study was to evaluate the relationship between PWI and newly diagnosed NAFLD in a large-scale adult population.

Subjects/methods: A total of 16,434 participants from 2010 to 2019 in Tianjin, China, were included in this cross-sectional study. PWI was assessed by using a validated self-administered food frequency questionnaire, and it was categorized into three subgroups for analysis: ≤3 cups/day, 4-7 cups/day, and >7 cups/day. NAFLD was diagnosed by abdominal ultrasound. Logistic regression analysis was used to calculate odds ratios (ORs) and 95% confidence intervals (CIs) for the relationship between PWI and NAFLD.

Results: Among 16,434 participants, 20.5% (3,364) had newly diagnosed NAFLD. After controlling for demographic characteristics, lifestyle risk factors, and dietary intake, the adjusted ORs (95% CIs) for having NAFLD across PWI categories were 1.00 (reference) for ≤3 cups/day, 0.84 (0.72, 0.97) for 4-7 cups/day, and 0.77 (0.63, 0.94) for >7 cups/day in males and 1.00 (reference) for ≤3 cups/day, 1.02 (0.81, 1.27) for 4-7 cups/day, and 1.08 (0.78, 1.49) for >7 cups/day in females, respectively.

Conclusions: This study is the first to show that higher PWI is independently related to lower newly diagnosed NAFLD among males, but not females. Further studies are needed to explore the causal relationship.
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http://dx.doi.org/10.1038/s41430-021-00891-9DOI Listing
April 2021

A genetically encoded sensor for measuring serotonin dynamics.

Nat Neurosci 2021 05 5;24(5):746-752. Epub 2021 Apr 5.

State Key Laboratory of Membrane Biology, Peking University School of Life Sciences, Beijing, China.

Serotonin (5-HT) is a phylogenetically conserved monoamine neurotransmitter modulating important processes in the brain. To directly visualize the release of 5-HT, we developed a genetically encoded G-protein-coupled receptor (GPCR)-activation-based 5-HT (GRAB) sensor with high sensitivity, high selectivity, subsecond kinetics and subcellular resolution. GRAB detects 5-HT release in multiple physiological and pathological conditions in both flies and mice and provides new insights into the dynamics and mechanisms of 5-HT signaling.
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http://dx.doi.org/10.1038/s41593-021-00823-7DOI Listing
May 2021

Clinical Characteristics of Aortic Aneurysm in MIMIC-III.

Heart Surg Forum 2021 04 2;24(2):E351-E358. Epub 2021 Apr 2.

Department of Emergency Medicine, Changsha Central Hospital, University of South China, Hengyand, Hunan, China.

Background: Aortic aneurysm (AA) is an aortic disorder prone to sudden, life-threatening aortic dissection or rupture, with poor clinical outcomes. In this study, we aimed to analyze the clinical characteristics of AA in MIMIC-III to explore implications for management.

Methods: All patients with AA, including abdominal aortic aneurysm (AAA) and thoracic aortic aneurysm (TAA), in the MIMIC-III database were included. Clinical and laboratory variables were analyzed and compared in AAA and TAA.

Results: A total of 345 patients, including 183 patients with AAA and 162 patients with TAA, were enrolled in this study. The in-hospital mortality in AAA and TAA groups was 6.01% and 3.7%, respectively. In the nonsurvivor groups in both AAA and TAA, patients were older, and the incidence of surgery was lower. In the nonsurvivor group of AAA, the levels of alanine aminotransferase, aspartate aminotransferase, urea nitrogen, creatinine, lactate dehydrogenase (LDH), creatine kinase, anion gap, and lactate were significantly higher in the nonsurvivor group, whereas the level of albumin was lower. In the nonsurvivor group of TAA, the level of LDH significantly increased and the level of albumin decreased. In the nonsurgery group, in-hospital mortality was higher, and patients were older, with higher levels of glucose, total bilirubin, urea nitrogen, and creatinine and longer length of stay in ICU and hospital.

Conclusion: Age, surgery, albumin, and LDH showed significant differences between survivor and nonsurvivor groups in both AAA and TAA. In the nonsurgery group, the mean age was older and disease severity was worse, with poorer clinical outcomes. Older AA patients without surgery and with lower levels of albumin and higher levels of LDH had higher risk of in-hospital mortality.
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http://dx.doi.org/10.1532/hsf.3571DOI Listing
April 2021

Consumption of chilies and sweet peppers is associated with lower risk of sarcopenia in older adults.

Aging (Albany NY) 2021 03 26;13(6):9135-9142. Epub 2021 Mar 26.

Nutritional Epidemiology Institute and School of Public Health, Tianjin Medical University, Tianjin, China.

Background: Sarcopenia is an aging-related loss of muscle mass and function, which induces numerous adverse outcomes. Capsaicin and capsiate, separately extracted from chilies and sweet peppers, have the potential to induce muscle hypertrophy via activation of transient receptor potential vanilloid 1. The present study aimed to investigate whether chili and sweet pepper consumption are related to sarcopenia in the elderly general population.

Methods: A cross-sectional study with 2,451 participants was performed. Dietary chili and sweet pepper consumption were assessed using a validated self-administered food frequency questionnaire. Sarcopenia was defined according to the consensus of the Asian Working Group for Sarcopenia. Logistic regressions were performed to measure the effect of chili and sweet pepper consumption on sarcopenia.

Results: The prevalence of sarcopenia was 16.1%. After adjustment for potential confounding variables, the odds ratios (95% confidence intervals) for sarcopenia across chili and sweet pepper consumption categories were 1.00 (reference) for almost never, 0.73 (0.55, 0.97) and 0.73 (0.56, 0.96) for ≤1 time/week, 0.60 (0.39, 0.90) and 0.66 (0.45, 0.95) for ≥2-3 times/week (both for trend <0.01), respectively.

Conclusion: The present study showed that higher consumption of chilies and sweet peppers was related to a lower risk of sarcopenia in older adults.
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http://dx.doi.org/10.18632/aging.104168DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8034967PMC
March 2021

Prediction model of random forest for the risk of hyperuricemia in a Chinese basic health checkup test.

Biosci Rep 2021 Apr;41(4)

Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, P.R. China.

Objectives: The present study aimed to develop a random forest (RF) based prediction model for hyperuricemia (HUA) and compare its performance with the conventional logistic regression (LR) model.

Methods: This cross-sectional study recruited 91,690 participants (14,032 with HUA, 77,658 without HUA). We constructed a RF-based prediction model in the training sets and evaluated it in the validation sets. Performance of the RF model was compared with the LR model by receiver operating characteristic (ROC) curve analysis.

Results: The sensitivity and specificity of the RF models were 0.702 and 0.650 in males, 0.767 and 0.721 in females. The positive predictive value (PPV) and negative predictive value (NPV) were 0.372 and 0.881 in males, 0.159 and 0.978 in females. AUC of the RF models was 0.739 (0.728-0.750) in males and 0.818 (0.799-0.837) in females. AUC of the LR models were 0.730 (0.718-0.741) for males and 0.815 (0.795-0.835) for females. The predictive power of RF was slightly higher than that of LR, but was not statistically significant in females (Delong tests, P=0.0015 for males, P=0.5415 for females).

Conclusion: Compared with LR, the good performance in HUA status prediction and the tolerance of features associations or interactions showed great potential of RF in further application. A prospective cohort is necessary for HUA developing prediction. People with high risk factors should be encouraged to actively control to reduce the probability of developing HUA.
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http://dx.doi.org/10.1042/BSR20203859DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8026814PMC
April 2021

Relationship between seaweeds consumption and hyperuricaemia in general adults: a Population-based study from the Tianjin Chronic Low-grade Systemic Inflammation and Health (TCLSIH) cohort study.

Br J Nutr 2021 Mar 15:1-8. Epub 2021 Mar 15.

Nutritional Epidemiology Institute and School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin300070, People's Republic of China.

Seaweeds have numerous biologically active ingredients, such as polysaccharides, polyphenols and carotenoids, that are beneficial to human health. Although these benefits might be related to the synthesis, secretion or reabsorption of uric acid, no studies have explored the relationship between seaweeds consumption and hyperuricaemia (HUA) in the general population. The aim of this study was to investigate whether seaweeds consumption is related to HUA in a large-scale adult population. A cross-sectional study was conducted with 32 365 adults (17 328 men and 15 037 women) in Tianjin, People's Republic of China. Frequency of seaweeds consumption was assessed by a validated self-administered FFQ. HUA was defined as serum uric acid levels >420 μmol/L in men and >350 μmol/L in women. The association between seaweeds consumption and HUA was assessed by multiple logistic regression analysis. Restricted cubic spline functions were used for non-linearity tests. The prevalence of HUA in men and women was 21·17 % and 5·93 %, respectively. After adjustments for potential confounding factors, the OR (95 % CI) for HUA across seaweed consumption (g/1000 kcal per d) were 1·00 (reference) for level 1, 0·91 (95 % CI 0·81, 1·02) for level 2; 0·90 (95 % CI 0·81, 1·01) for level 3; 0·86 (95 % CI 0·78, 0·97) for level 4 in men and 0·90 (95 % CI 0·73, 1·10) for level 2; 0·82 (95 % CI 0·67, 1·00) for level 3; 0·84 (95 % CI 0·68, 1·03) for level 4 in women, respectively. A negative correlation between seaweeds consumption and HUA in males but not in females was observed. Further studies are needed to explore the causal relationship.
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http://dx.doi.org/10.1017/S0007114521000891DOI Listing
March 2021

Secondary lymphoma development after chemotherapy in three dogs.

Vet Med Sci 2021 Mar 13. Epub 2021 Mar 13.

College of Veterinary Medicine, Chungnam National University, Daejeon, Korea.

Lymphoma is widely recognized in veterinary medicine. However, studies focused on secondary lymphoma after chemotherapy do not exist in veterinary medicine. An 11-year-old, spayed female Shih-Tzu dog was diagnosed with mammary gland carcinoma. Twenty-five months after carboplatin treatment, the dog developed generalized lymphadenopathy (GL), diagnosed as high-grade T-cell lymphoma by immunohistochemistry. Another spayed female Shih-Tzu dog who was 15-year-old had biopsy-induced gastrointestinal stromal tumour. Three months after being treated with Toceranib, the dog developed GL that was diagnosed by PCR for antigen receptor rearrangement as T-cell lymphoma. An eight-year-old, castrated male Mongrel dog was diagnosed with mast cell tumour. The dog was treated with vinblastine, but 14 months later, GL was revealed. Fine-needle aspiration indicated lymphoma. The owner declined to investigate the cell lineage. All three dogs developed GL after chemotherapy. We suggest that secondary lymphoma can develop in dogs after chemotherapy for a primary cancer, and thus long-term follow-up is necessary.
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http://dx.doi.org/10.1002/vms3.474DOI Listing
March 2021

Clinical, radiological and genomic features and targeted therapy in BRAF V600E mutant adult glioblastoma.

J Neurooncol 2021 May 1;152(3):515-522. Epub 2021 Mar 1.

Department of Neurology, Massachusetts General Hospital, Boston, MA, 02114, USA.

Purpose: Although uncommon, detection of BRAF V600E mutations in adult patients with glioblastoma has become increasingly relevant given the widespread application of molecular diagnostics and encouraging therapeutic activity of BRAF/MEK inhibitors.

Methods: We performed a retrospective study of adult glioblastoma patients treated at Dana-Farber Cancer Institute/Brigham and Women's Hospital or Massachusetts General Hospital from January 2011 to July 2019 with an identified BRAF V600E mutation by either immunohistochemistry or molecular testing. Patient characteristics, molecular genomics, and preoperative MRI were analyzed.

Results: Nineteen glioblastoma patients were included, with median age at diagnosis of 41-years-old (range 22-69). Only 1/18 was IDH1/2-mutant; 10/17 had MGMT unmethylated tumors. The most common additional molecular alterations were CDKN2A/2B biallelic loss/loss-of-function (10/13, 76.9%), polysomy 7 (8/12, 66.7%), monosomy 10 (5/12, 41.7%), PTEN biallelic loss/loss-of-function (5/13, 38.5%) and TERT promoter mutations (5/15, 33.3%). Most tumors were well-circumscribed (11/14) and all were contrast-enhancing on MRI. Twelve patients eventually developed subependymal or leptomeningeal dissemination. Six patients were treated with BRAF/MEK inhibition following disease progression after standard of care therapy, with 4/6 patients showing partial response or stable disease as best response. Median time to progression after BRAF/MEK inhibition was 6.0 months (95% CI 1.2-11.8). Grade 1 skin rash was present in 2 patients, but no other adverse events were reported. Median OS for the entire cohort was 24.1 months (95% CI 15.7-38.9).

Conclusion: Understanding the natural history and features of BRAF V600E glioblastoma may help better identify patients for BRAF/MEK inhibition and select therapeutic strategies.
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http://dx.doi.org/10.1007/s11060-021-03719-5DOI Listing
May 2021

Coinfection with influenza A virus enhances SARS-CoV-2 infectivity.

Cell Res 2021 04 18;31(4):395-403. Epub 2021 Feb 18.

State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, Hubei, 430072, China.

The upcoming flu season in the Northern Hemisphere merging with the current COVID-19 pandemic raises a potentially severe threat to public health. Through experimental coinfection with influenza A virus (IAV) and either pseudotyped or live SARS-CoV-2 virus, we found that IAV preinfection significantly promoted the infectivity of SARS-CoV-2 in a broad range of cell types. Remarkably, in vivo, increased SARS-CoV-2 viral load and more severe lung damage were observed in mice coinfected with IAV. Moreover, such enhancement of SARS-CoV-2 infectivity was not observed with several other respiratory viruses, likely due to a unique feature of IAV to elevate ACE2 expression. This study illustrates that IAV has a unique ability to aggravate SARS-CoV-2 infection, and thus, prevention of IAV infection is of great significance during the COVID-19 pandemic.
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http://dx.doi.org/10.1038/s41422-021-00473-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7890106PMC
April 2021

Association of clinical and laboratory variables with in-hospital incidence of deep vein thrombosis in patients after acute ischemic stroke: A retrospective study.

Medicine (Baltimore) 2021 Feb;100(6):e24601

Department of Emergency Medicine, Changsha Central Hospital, University of South China.

Abstract: Deep vein thrombosis (DVT) is a serious complication in patients with acute ischemic stroke (AIS). Early prediction of DVT could enable physicians to perform a proper prevention strategy. We analyzed the association of clinical and laboratory variables with DVT to evaluate the risk of DVT in patients after AIS.AIS patients admitted to the Changsha Central Hospital between January 2017 and December 2019 with length of stay in hospital ≥7 days were included. Clinical and laboratory variables for DVT at baseline were collected, and the diagnosis of DVT was confirmed by ultrasonography. Independent factors were developed by Multivariate logistic regression analysis.A total of 101 patients were included in the study. The in-hospital incidence of DVT after AIS was 19.8%(20/101). The average level of D-dimer when DVT detected was significant increased around 4-fold than that on admission (P < .001). Pulmonary infection (odds ratio [OR] = 5.4, 95%CI:1.10-26.65, P = .037)) and increased muscle tone (OR = 0.11, 95%CI:0.02-0.58, P = .010) as independent relevant factors for DVT were confirmed.Pulmonary infection as a risk factor and increased muscle tone as a protective factor for DVT were identified in patients after AIS. The level of D-dimer which increased around 4-fold compared to the initial level could be an indicator for DVT occurrence.
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http://dx.doi.org/10.1097/MD.0000000000024601DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7886450PMC
February 2021

Soft drink consumption and risk of nonalcoholic fatty liver disease: results from the Tianjin Chronic Low-Grade Systemic Inflammation and Health (TCLSIH) cohort study.

Am J Clin Nutr 2021 05;113(5):1265-1274

Nutritional Epidemiology Institute and School of Public Health, Tianjin Medical University, Tianjin, China.

Background: Epidemiological evidence for the association of soft drink consumption with nonalcoholic fatty liver disease (NAFLD) is inconsistent, and such association has not been prospectively examined in the general adult population.

Objectives: We aimed to investigate the prospective association between soft drink consumption and the risk of NAFLD in a Chinese adult population.

Methods: This prospective cohort study investigated 14,845 participants [mean age: 39.3 y; 6203 (41.8%) men] who were free of liver disease, cardiovascular disease, and cancer at baseline. Soft drink consumption (mainly sugar-containing carbonated beverages) was measured at baseline using a validated FFQ. NAFLD was diagnosed based on abdominal ultrasound without significant alcohol consumption and other causes of liver disease. Hepatic steatosis index (HSI) was calculated based on sex, BMI, and blood transaminase levels. Cox proportional hazards regression models were used to examine the association of soft drink consumption with incident NAFLD.

Results: A total of 2888 first-incident cases of NAFLD occurred during 42,048 person-years of follow-up (median follow-up: 4.2 y). After adjusting for demographic characteristics, lifestyle factors, dietary intake, and inflammatory markers, the multivariable HRs (95% CIs) for incident NAFLD were 1.00 (reference) for <1 serving/wk, 1.18 (1.03, 1.34) for 1 serving/wk, 1.23 (1.08, 1.40) for 2-3 servings/wk, and 1.47 (1.25, 1.73) for ≥4 servings/wk, respectively (P for trend < 0.0001). Further sensitivity analysis showed that the corresponding multivariable HRs (95% CIs) for incident HSI-defined NAFLD were 1.00 (reference), 0.96 (0.70, 1.31), 1.16 (0.83, 1.62), and 1.59 (1.07, 2.37), respectively (P for trend < 0.0001).

Conclusions: The results from our prospective study indicate that soft drink consumption is associated with an increased risk of NAFLD in Chinese adults. This study was registered at UMIN Clinical Trials Registry as UMIN000027174.
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http://dx.doi.org/10.1093/ajcn/nqaa380DOI Listing
May 2021

High-normal thyroid function predicts incident non-alcoholic fatty liver disease among middle-aged and elderly euthyroid subjects.

J Gerontol A Biol Sci Med Sci 2021 Feb 3. Epub 2021 Feb 3.

Nutritional Epidemiology Institute and School of Public Health, Tianjin Medical University, Tianjin, China.

Background: Thyroid hormones (THs) influence hepatic lipid homeostasis through multiple pathways, suggesting that THs may predict the risk of non-alcoholic fatty liver disease (NAFLD). However, prospective studies on the association between THs levels and incident NAFLD in euthyroid subjects are limited. This prospective cohort study aimed to explore whether THs were associated with the development of NAFLD in middle-aged and elderly euthyroid subjects.

Methods: A total of 6,462 subjects without baseline NAFLD were included in the cohort study (~6-year follow-up period, median: 4.2 years). Chemiluminescence immunoassay was used to measure serum free triiodothyronine (FT3), free thyroxine (FT4), and thyroid-stimulating hormone (TSH), and NAFLD was diagnosed by abdominal ultrasonography. Multivariable Cox proportional hazards regression models were used to assess the association between baseline THs, TSH, and the risk of NAFLD.

Results: During the follow-up period, 1,675 subjects developed NAFLD. The incidence rate of NAFLD was 85.0 per 1000 person-years. Compared with the lowest FT3, FT4, and TSH quartiles, the multivariable-adjusted hazard ratios (95% confidence interval) of incident NAFLD for highest quartiles were 1.30 (1.12, 1.51), 1.07 (0.93, 1.23), 0.82 (0.71, 0.95) (P <0.001, =0.56, =0.01, respectively), respectively.

Conclusions: In middle-aged and elderly euthyroid subjects, high-normal FT3 and low-normal TSH are independently associated with a higher incidence of NAFLD.
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http://dx.doi.org/10.1093/gerona/glab037DOI Listing
February 2021