29,006 results match your criteria wall thickness

Environmental and diagenetic controls on the morphology and calcification of the Ediacaran metazoan Cloudina.

Sci Rep 2021 Jun 11;11(1):12341. Epub 2021 Jun 11.

School of GeoSciences, University of Edinburgh, James Hutton Road, Edinburgh, EH9 3FE, UK.

Cloudina is a globally distributed Ediacaran metazoan, with a tubular, funnel-in-funnel form built of thin laminae (ca. 1-10 μm). To what degree local environmental controlled morphology, and whether early diagenesis controlled the degree of calcification of Cloudina, is debated. Read More

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Hysteroscopy-assisted laparoscopic salpingectomy for interstitial pregnancy without cornual resection.

Fertil Steril 2021 Jun 8. Epub 2021 Jun 8.

Reproductive Biology Associates, Atlanta, Georgia.

Objective: To illustrate a novel surgical management technique for interstitial ectopic pregnancies (IP).

Design: Video description of the case, demonstration of the surgical technique, reevaluation at the 6-week postoperative follow-up, and review of the advantages of this surgical technique for IP.

Setting: Tertiary referral center. Read More

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Evaluation of serum antioxidative status, immune status and intestinal condition of Linwu duck challenged by lipopolysaccharide with various dosages and replications.

Poult Sci 2021 Apr 20;100(7):101199. Epub 2021 Apr 20.

Hunan Institute of Animal and Veterinary Science, Changsha 410131, China. Electronic address:

The present study investigated the dosage and replication effects of lipopolysaccharide challenges on the serum oxidative and immune status, and the intestinal morphology and permeability of Linwu ducks at the growing stage. A total of 500 54-day-old Linwu ducks were randomly assigned into 10 treatments, which included a factorial arrangement of 2 levels of LPS challenge replications (1 and 2 times) × 5 levels of lipopolysaccharide challenging dosages (0, 0.1, 0. Read More

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Effect of azithromycin on bronchial wall thickness in severe persistent asthma: A double-blind placebo-controlled randomized clinical trial.

Respir Med 2021 Jun 2;185:106494. Epub 2021 Jun 2.

Department of Radiology, Mashhad Medical Sciences Branch, Islamic Azad University, Mashhad, Iran. Electronic address:

Background: Azithromycin reduced airway remodeling in animal models of asthma. However, its effect on human subjects has not been studied yet. This study aimed to investigate the effect of long-term treatment with azithromycin on airways wall thickness in patients with severe persistent asthma. Read More

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Variants translating reduced expression of the beta estrogen receptor gene were associated with increased carotid intima media thickness: A cross-sectional study in late postmenopausal women.

Medicine (Baltimore) 2021 Jun;100(23):e26216

Department of Pediatrics, Obstetrics and Gynecology, University of Valencia and Service of Obstetrics and Gynecology, INCLIVA, Av Menéndez y Pelayo, Valencia, Spain.

Abstract: There is debate on the role of estrogens in modulating the risk for atherosclerosis in women. Our purpose was to investigate whether the size of the estrogenic impact was independently associated with variation of carotid intima-media thickness (IMT) in healthy late postmenopausal women. The levels of circulating estrogens have been used in previous studies but the influence of SNPs of the estrogen receptors (ER) α and β have not been investigated. Read More

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Eccentric hypertrophy in an animal model of mid- and long-term premature ventricular contraction-induced cardiomyopathy.

Heart Rhythm O2 2021 Feb 8;2(1):80-88. Epub 2021 Jan 8.

Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia.

Background: Tachycardia and heart rate irregularity are proposed triggers of premature ventricular contraction-induced cardiomyopathy (PVC-cardiomyopathy). Bigeminal premature atrial and ventricular contractions (PACs and PVCs) increase heart rate and result in rhythm irregularities but differ in their effects on ventricular synchrony. Comparing chronic bigeminal PACs with PVCs would provide insights into mechanisms of PVC-cardiomyopathy. Read More

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February 2021

Racial difference in atrial size and extracellular matrix homeostatic response to hypertension: Is this a potential mechanism of reduced atrial fibrillation in African Americans?

Heart Rhythm O2 2021 Feb 12;2(1):37-45. Epub 2021 Jan 12.

Division of Cardiology, Medical University of South Carolina, Charleston, South Carolina.

Background: Atrial fibrillation (AF) is less common in African Americans (AA) than Caucasians (C) despite a higher prevalence of risk factors such as hypertension (HTN).

Objective: Test the hypothesis that differences in extracellular matrix (ECM) between AA and C in response to HTN might attenuate atrial enlargement and alter myocardial fibrosis.

Methods: ECM-related plasma biomarkers and echo data were collected from 326 C and 129 AA subjects with no history of AF, stratified by the presence of HTN, HTN with left ventricular hypertrophy (LVH), or HTN with LVH and heart failure with preserved ejection fraction (HFpEF). Read More

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February 2021

Graphene Oxide Functionalized Double-Layered Patch with Anti-Adhesion Ability for Abdominal Wall Defects.

Int J Nanomedicine 2021 3;16:3803-3818. Epub 2021 Jun 3.

Department of Plastic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China.

Background: Effective repair of full-thickness abdominal wall defects requires a patch with sufficient mechanical strength and anti-adhesion characteristics to avoid the formation of hernias and intra-abdominal complications such as intestinal obstruction and fistula. However, patches made from polymers or bio-derived materials may not meet these requirements and lack the bionic characteristics of the abdominal wall.

Materials And Methods: In this study, we report a consecutive electrospun method for preparing a double-layer structured nanofiber membrane (GO-PCL/CS-PCL) using polycaprolactone (PCL), graphene oxide (GO) and chitosan (CS). Read More

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Early cardiac electrical and structural changes in patients with non-obese non-alcoholic fatty liver disease.

Kardiologiia 2021 May 31;61(5):51-58. Epub 2021 May 31.

Department of Cardiology, Faculty of Medicine, Kahramanmars Sutcu Imam University, Kahramanmaras, Turkey.

Background    Obese non-alcoholic fatty liver disease (NAFLD) was found to increase the risk of developing atrial fibrillation (AF) regardless of the metabolic syndrome subgroups that may accompany it. In this study, the effect of NAFLD on the structural and electrical functions of the heart was investigated using tissue Doppler echocardiography (TDE) in non-obese NAFLD patients without any known risk factors for AF.Material and methods    The study included 43 female patients (31. Read More

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50 week ultrasound imaging and ultrastructural abnormalities of bladder after sugar diuresis and diabetes mellitus in rats.

Int Urol Nephrol 2021 Jun 10. Epub 2021 Jun 10.

Department of Urology, First Affiliated Hospital, Shihezi University, Shihezi, 832008, Xinjiang, China.

Purpose: To investigate 50 week ultrasound imaging and ultrastructure changes of bladder in diuresis and diabetes rats.

Methods: Forty-two healthy male Sprague-Dawley rats were randomly divided into control group, sugar-induced diuresis group and streptozotocin-induced diabetes group. The 24 h drinking and urine volume were calculated from 21 to 31 weeks. Read More

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[Effect of root development on the root and periodontal absorptions of maxillary impacted anterior teeth after orthodontic traction].

Shanghai Kou Qiang Yi Xue 2021 Apr;30(2):162-166

Department of Orthodontics, Hospital of Stomatology, Southwest Medical University. Luzhou 646000, Sichuan Province, China.

Purpose: To investigate the effect of root development on root and periodontal tissues of maxillary impacted anterior teeth after orthodontic traction based on cone-beam CT (CBCT).

Methods: Thirty-four patients (34 teeth) requiring orthodontic traction for maxillary impacted anterior teeth in Southwest Medical University Affiliated Stomatological Hospital from July 2018 to March 2019 were selected. The patients were divided into incomplete development group and complete development group according to root development, each with 17 cases. Read More

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[Study of the root position of palatally malposed maxillary lateral incisor based on cone-beam CT images].

Shanghai Kou Qiang Yi Xue 2021 Apr;30(2):129-134

Department of Orthodontics, Shanghai Stomatological Hospital; Oral Biomedical Engineering Laboratory, Fudan University. Shanghai 200001, China.

Purpose: The goal of this investigation was to measure and analyze the root position of palatally malposed maxillary lateral incisor based on cone-beam CT(CBCT)images, in order to provide references for orthodontists to move this kind of teeth scientifically.

Methods: CBCT data from 200 patients meeting the selection criteria with palatally malposed maxillary lateral incisor were investigated in this study. The root was divided into eight equal parts by length, then T1 to T8 were orderly pointed from root apex to alveolar ridge crest. Read More

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Allisartan ameliorates vascular remodeling through regulation of voltage-gated potassium channels in hypertensive rats.

BMC Pharmacol Toxicol 2021 Jun 9;22(1):33. Epub 2021 Jun 9.

Department of Cardiology, Southern Medical University affiliated Fengxian Hospital, Shanghai, 201499, China.

Background: The objective of the present study was to determine the effect of allisartan, a new angiotensin II type 1 receptor antagonist on vascular remodeling through voltage gated potassium channels (Kv7) in hypertensive rats.

Methods: The study included a total of 47 Sprague Dawley (SD) rats. The animals were randomized to sham operation (n = 14), untreated hypertensive control group (n = 18) and allisartan treatment group (n = 15). Read More

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Visceral adiposity and inflammatory bowel disease.

Int J Colorectal Dis 2021 Jun 9. Epub 2021 Jun 9.

Department of Gastroenterology, Beaumont Hospital, Beaumont Rd, Dublin, Ireland.

Background: Rates of obesity are increasing worldwide, as is the incidence of inflammatory bowel disease (IBD). Obesity is now considered an inflammatory state. Visceral adiposity in particular may be associated with a more severe inflammatory phenotype in IBD. Read More

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Realistic boundary conditions in SimVascular through inlet catheter modeling.

BMC Res Notes 2021 May 31;14(1):215. Epub 2021 May 31.

Department of Biomedical Engineering, University of California, Davis, One Shields Ave, Davis, CA, 95616-5270, USA.

Objective: This study aims at developing a pipeline that provides the capability to include the catheter effect in the computational fluid dynamics (CFD) simulations of the cardiovascular system and other human vascular flows carried out with the open-source software SimVascular. This tool is particularly useful for CFD simulation of interventional radiology procedures such as tumor embolization where estimation of a therapeutic agent distribution is of interest.

Results: A pipeline is developed that generates boundary condition files which can be used in SimVascular CFD simulations. Read More

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First Report of Aloe vera Rust Caused by Uromyces aloes in an Ornamental Nursery in the United States.

Plant Dis 2021 Jun 8. Epub 2021 Jun 8.

Penn State University, Plant Pathology, University Park, Pennsylvania, United States;

Aloe vera (L.) Burm. f. Read More

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[Study on the effect of antibiotics application in perioperative period on carotid artery and serum interleukin-6 in periodontitis rats with hyperlipidemia or diabetes].

Zhonghua Kou Qiang Yi Xue Za Zhi 2021 Jun;56(6):557-564

Department of Periodontology, Shanxi Medical University School and Hospital of Stomatology & Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, China.

To investigate the effect of antibiotics application in perioperative period on carotid artery and serum interluekin-6 (IL-6) in chronic periodontitis (CP) rats with hyperlipidemia (HL) or diabetes mellitus (DM). The models of CP rats with HL or DM were established in different batches. The rats were divided into groups as follows: A and A' were normal control groups, =7 in each group; B(HL) and B'(DM) were groups of HL and DM, =7 in each; C(HL+CP) and C'(DM+CP) were groups of CP with HL and CP with DM, =21 in each. Read More

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Analysis of sequential ultrasound frames for the measurement of hemodynamic stresses, critical bent buckling pressure, and critical buckling torque of human common carotid atherosclerosis.

Clin Biomech (Bristol, Avon) 2021 May 29;87:105401. Epub 2021 May 29.

Medical Image and Signal Processing Research Center, Isfahan University of Medical Sciences, Isfahan, Iran. Electronic address:

Background: Structural properties of the arterial wall are important diagnostic parameters. The current study aimed at investigating the hemodynamic properties and intima-media thickness changes of the common carotid artery in human subjects with atherosclerosis in order to determine the relationships between these indices.

Methods: This study presented methods to detect instantaneous changes in the lumen diameter, intima media thickness, longitudinal movement and acceleration, and velocity of the left side of common carotid artery. Read More

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Molecular Dynamics Study of Wetting and Adsorption of Binary Mixtures of the Lennard-Jones Truncated and Shifted Fluid on a Planar Wall.

Langmuir 2021 Jun 7. Epub 2021 Jun 7.

Laboratory of Engineering Thermodynamics, Technische Universität Kaiserslautern, 67663 Kaiserslautern, Germany.

The wetting of surfaces is strongly influenced by adsorbate layers. Therefore, in this work, sessile drops and their interaction with adsorbate layers on surfaces were investigated by molecular dynamics simulations. Binary fluid model mixtures were considered. Read More

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Prognostic Model to Predict Postoperative Adverse Events in Pediatric Patients With Aortic Coarctation.

Front Cardiovasc Med 2021 21;8:672627. Epub 2021 May 21.

Beijing Anzhen Hospital, Capital Medical University, Beijing, China.

Postoperative adverse events remain excessively high in surgical patients with coarctation of aorta (CoA). Currently, there is no generally accepted strategy to predict these patients' individual outcomes. This study aimed to develop a risk model for the prediction of postoperative risk in pediatric patients with CoA. Read More

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The poly(ADP-ribosyl)ation of BRD4 mediated by PARP1 promoted pathological cardiac hypertrophy.

Acta Pharm Sin B 2021 May 14;11(5):1286-1299. Epub 2020 Dec 14.

Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Engineering Laboratory of Druggability and New Drug Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou 510006, China.

The bromodomain and extraterminal (BET) family member BRD4 is pivotal in the pathogenesis of cardiac hypertrophy. BRD4 induces hypertrophic gene expression by binding to the acetylated chromatin, facilitating the phosphorylation of RNA polymerases II (Pol II) and leading to transcription elongation. The present study identified a novel post-translational modification of BRD4: poly(ADP-ribosyl)ation (PARylation), that was mediated by poly(ADP-ribose)polymerase-1 (PARP1) in cardiac hypertrophy. Read More

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Role of bundle sheath conductance in sustaining photosynthesis competence in sugarcane plants under nitrogen deficiency.

Photosynth Res 2021 Jun 6. Epub 2021 Jun 6.

Laboratory of Crop Physiology (LCroP), Dept. Plant Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil.

The role of bundle sheath conductance (g) in sustaining sugarcane photosynthesis under nitrogen deficiency was investigated. Sugarcane was grown under different levels of nitrogen supply and g was estimated using simultaneous measurements of leaf gas exchange and chlorophyll fluorescence at 21% or 2% [O] and varying air [CO] and light intensity. Maximum rates of PEPC carboxylation, Rubisco carboxylation, and ATP production increased with an increase in leaf nitrogen concentration (LNC) from 1 to 3 g m. Read More

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Small-diameter polyurethane vascular graft with high strength and excellent compliance.

J Mech Behav Biomed Mater 2021 Jun 1;121:104614. Epub 2021 Jun 1.

Key Laboratory of Green Processing and Functional New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan, 430200, PR China; College of Material Science and Engineering, Wuhan Textile University, Wuhan, 430200, PR China. Electronic address:

In this study, a polyurethane vascular graft with excellent strength and compliance for clinical application was designed and fabricated by preparing three small-diameter vascular graft layers via the textile techniques of wet spinning and knitting. The polyurethane filament that was fabricated by wet spinning formed the inner layer. The polyurethane tubular fabric was used as the middle layer. Read More

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Adaptive optics ophthalmoscopy: a systematic review of vascular biomarkers.

Surv Ophthalmol 2021 Jun 3. Epub 2021 Jun 3.

Paris Eye Imaging Group, Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, INSERM-DHOS Clinical Investigation Center, 1423, Paris, France.

Retinal vascular diseases are a leading cause for blindness and partial sight certifications. By applying adaptive optics (AO) to conventional imaging modalities, the microstructures of the retinal vasculature can be observed with high spatial resolution, hence offering a unique opportunity for the exploration of the human microcirculation. The objective of this systematic review is to describe the current state of retinal vascular biomarkers imaged by AO flood illumination ophthalmoscopy (FIO) and AO scanning laser ophthalmoscopy (SLO). Read More

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Establishment of a nomogram prediction model for long diameter 10-15 mm gallbladder polyps with malignant tendency.

Surgery 2021 Jun 2. Epub 2021 Jun 2.

Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China. Electronic address:

Background: Surgical indications for the treatment of gallbladder polyps are controversial. Evaluation of gallbladder polyps with malignant tendency and indications for cholecystectomy in patients with long diameter polyps of 10 to 15 mm require further analysis and discussion. In this study, our objective was to re-evaluate indications for the surgical resection of gallbladder polyps and construct a nomogram model for the prediction of gallbladder polyps with malignant tendency. Read More

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Transmural healing as a therapeutic goal in Crohn's disease: a systematic review.

Lancet Gastroenterol Hepatol 2021 Jun 3. Epub 2021 Jun 3.

Department of Gastroenterology and INSERM NGERE U1256, Nancy University Hospital, University of Lorraine, Vandoeuvre-lès-Nancy, France. Electronic address:

Transmural healing is associated with substantial improvements in disease-related outcomes for patients with Crohn's disease, but there is no single validated definition of transmural healing to date. We did a systematic review to summarise the available definitions and to evaluate the effect of transmural healing on disease-related outcomes for patients with Crohn's disease by searching PubMed, Cochrane Library, and Web of Science for interventional and non-interventional studies. Seventeen studies were included, reporting rates of transmural healing in between 14·0% and 42·4% of patients. Read More

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Circulating Levels of MicroRNAs in Hypertrophic Cardiomyopathy: The Relationship With Left Ventricular Hypertrophy, Left Atrial Dilatation and Ventricular Depolarisation-Repolarisation Parameters.

Heart Lung Circ 2021 Jun 1. Epub 2021 Jun 1.

Department of Genetics, Aziz Sancar Institute of Experimental Medicine and Department of Medical Genetics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.

Background: MicroRNAs are small, endogenous, non-coding RNAs that regulate the expression of many genes. It has recently been shown that circulating microRNAs may be biomarkers of hypertrophy and fibrosis in patients with hypertrophic cardiomyopathy (HCM).

Objective: To determine whether circulating levels of microRNAs involved in HCM are associated with electrocardiographic and echocardiographic parameters. Read More

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Evaluation of Successful and Failed Filtering Blebs after Trabeculectomy Using Anterior Segment Optical Coherence Tomography.

J Curr Ophthalmol 2021 Jan-Mar;33(1):1-5. Epub 2021 Mar 26.

Department of Ophthalmology, Beyoglu Eye Research and Training Hospital, Istanbul, Turkey.

Purpose: To evaluate filtering bleb characteristics using anterior segment optical coherence tomography (AS-OCT) and analyze correlations between these parameters and intraocular pressure (IOP).

Methods: The study included 54 eyes of 43 patients who underwent trabeculectomy with mitomycin-C. The patients were divided into two groups based on mean postoperative IOP. Read More

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Ultrasonographic Measurements of the Liver, Gallbladder Wall Thickness, Inferior Vena Cava, Portal Vein and Pancreas in an Urban Region, Malaysia.

J Med Ultrasound 2021 Jan-Mar;29(1):26-31. Epub 2020 Oct 1.

Department of Imaging, Faculty of Medicine and Health Sciences, University Putra Malaysia, Selangor, Malaysia.

Background: Ultrasonographic (USG) measurements of the liver length, gallbladder wall thickness (GBWT), diameters of the inferior vena cava (IVC), portal vein (PV), and pancreas are valuable and reliable in diagnosis hepatobiliary and pancreas conditions. This study is aimed to determine the normal values of liver length, GBWT, AP diameters of the IVC and PV, AP diameter of the head and body of the pancreas.

Methods: A prospective cross-sectional study was carried out in this study. Read More

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October 2020

Effect of A Multinutrient Complex on Retinal Microcirculation in Diabetic Patients Investigated Using an Adaptive Optics Retinal Camera.

Acta Endocrinol (Buchar) 2020 Oct-Dec;16(4):389-395

"Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.

Context: Alimentary supplements may have beneficial effects on retinal microvasculature in diabetic patients.

Objective And Design: State-of-the-art imaging techniques were used to assess retinal microcirculation in diabetic patients in an observational study before and after 3 months treatment with a multinutrient complex including resveratrol, vitamins D3, C, E, essential fatty acids, trace elements (zinc and copper) and macular pigments (lutein and zeaxanthin)-Resvega.

Subjects And Methods: Fifteen subjects were included in this study. Read More

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