203,789 results match your criteria enzyme-linked immunosorbent


Effects of Ultrashort Wave Therapy on Inflammation and Macrophage Polarization after Acute Lung Injury in Rats.

Bioelectromagnetics 2021 Jun 15. Epub 2021 Jun 15.

Rehabilitation Medicine Center, The First Affiliated Hospital of University of South China, Hengyang, People's Republic of China.

Acute lung injury (ALI) features dysregulated pulmonary inflammation. Ultrashort waves (USWs) exert anti-inflammatory effects but no studies have evaluated their activity in ALI. Herein, we used an in vivo lipopolysaccharide (LPS)-induced ALI model to investigate whether the anti-inflammatory activity of USWs is mediated by altering the polarization of M1 to M2 macrophages. Read More

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Neutrophil degranulation biomarkers characterize restrictive echocardiographic pattern with diastolic dysfunction in patients with diabetes.

Eur J Clin Invest 2021 Jun 15:e13640. Epub 2021 Jun 15.

First Clinic of internal Medicine, Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132, Genoa, Italy.

Objective: investigating the potential association between neutrophils degranulation and patterns of myocardial dysfunction in a cohort of patients with type 2 diabetes mellitus (T2DM).

Background: Two distinct phenotypes of diabetic cardiomyopathy have been described: a restrictive phenotype with diastolic dysfunction (restrictive/DD) and a dilative phenotype with systolic dysfunction (dilative/SD). However, the underlying determinants of these two patterns are not yet recognized METHODS: In this single-center, observational, cross-sectional study 492 patients were recruited. Read More

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Systemic administration of cytotoxic T lymphocyte-associated antigen 4 (CTLA-4)-Ig abrogates alveolar bone resorption in induced periodontitis through inhibition of osteoclast differentiation and activation: An experimental investigation.

J Periodontal Res 2021 Jun 15. Epub 2021 Jun 15.

Department of Periodontology, Tokyo Dental College, Tokyo, Japan.

Background/objectives: Cytotoxic T lymphocyte-associated antigen 4 (CTLA-4) is a critical immunoregulatory molecule expressed on T cells. CTLA-4 also binds to the surfaces of monocytes and macrophages, precursors of osteoclasts. Research on rheumatoid arthritis demonstrated that CTLA-4 suppresses inflammation and bone resorption. Read More

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Differential Effect of Proinflammatory Cytokines on Corneal and Conjunctival Epithelial Cell Mucins and Glycocalyx.

Transl Vis Sci Technol 2021 Jun;10(7):17

Chapman University School of Pharmacy, Chapman University, Irvine, CA, USA.

Purpose: Ocular surface mucins and glycocalyx are critical for providing ocular hydration as well lubrication and repelling pathogens or allergens. Elevated levels of tear proinflammatory cytokines in dry eye may have detrimental effect on mucins and glycocalyx. The present study tested the effect of proinflammatory cytokines IL-6, TNF-α, and IFN-γ on membrane-tethered mucins expression, glycocalyx, and viability of ocular surface epithelial cells. Read More

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Correlation between single nucleotide polymorphisms in the 3 primer untranslated region of PTX3 and the risk of essential hypertension: A case-control study.

Medicine (Baltimore) 2021 Jun;100(24):e25937

Department of Clinical Laboratory, the Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.

Abstract: The aim of this study was to investigate the correlation between single-nucleotide polymorphisms (SNPs) in the 3 primer of untranslated region (3'UTR) of the Pentraxin 3 (PTX3) gene and the risk of essential hypertension (EHT).PTX3 genotypes, rs2614, rs111451363, and rs73158510 locus, were found in 260 patients with EHT and 260 healthy controls. Quantitative real-time polymerase chain reaction was used to detect plasma hsa-miR-4766-5p levels. Read More

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miR-141-5p suppresses vascular smooth muscle cell inflammation, proliferation, and migration via inhibiting the HMGB1/NF-κB pathway.

J Biochem Mol Toxicol 2021 Jun 14:e22828. Epub 2021 Jun 14.

Department of Pharmacy, Shanxi Cancer Hospital, Taiyuan, Shanxi, China.

MicroRNAs (miRNAs) have been identified as significant modulators in the pathogenesis of atherosclerosis (AS). Additionally, the dysregulation of vascular smooth muscle cells (VSMCs) is a crucial biological event during AS. Our study aimed to explore the functional roles and molecular mechanisms of miR-141-5p in VSMCs dysfunction. Read More

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Fluvastatin-Loaded Emulsomes Exhibit Improved Cytotoxic and Apoptosis in Prostate Cancer Cells.

AAPS PharmSciTech 2021 Jun 14;22(5):177. Epub 2021 Jun 14.

Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.

Fluvastatin (FLV) is known to inhibit the 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA), which is over-expressed in various cancers. FLV has been reported to decrease cancer development and metastasis. However, because of low bioavailability, extensive first-pass metabolism and short half-life of FLV (1. Read More

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Technical bioanalytical considerations for detection and quantification of cytokines in ELISA assays.

Cytokine 2021 Jun 11:155615. Epub 2021 Jun 11.

Programa de Pós-graduação Interdisciplinar em Ciências da Saúde, Instituto de Ciências da Atividade Física e Esportes (ICAFE), Universidade Cruzeiro do Sul, São Paulo, SP, Brazil.

Enzyme-linked Immunosorbent Assays (ELISAs) techniques are widely known for the robust signal amplification with high sensitivity and specificity for the quantitation of antibodies and antigens in complex biological fluids. However, strict caution in the pre-analytical, analytical, and post-analytical phases is crucial to warrant an immunoassay quality. Since analytical errors are commonly seen in papers, this study aimed to discuss the main principles and guidelines to guarantee the specificity and sensitivity in the post-analytical phase of the ELISA method. Read More

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Long non-coding RNA CDKN2B-AS1 enhances LPS-induced apoptotic and inflammatory damages in human lung epithelial cells via regulating the miR-140-5p/TGFBR2/Smad3 signal network.

BMC Pulm Med 2021 Jun 14;21(1):200. Epub 2021 Jun 14.

Department of Intensive Care Unit, The Second Clinical Medical College, Jingzhou Central Hospital, Yangtze University, No. 1 Renmin Road, Jingzhou District, Jingzhou, 434000, Hubei, China.

Background: Sepsis is a complicated disease with systemic inflammation or organ dysfunction, and it is the leading cause of acute lung injury (ALI). Long non-coding RNAs (lncRNAs) have played important roles in the pathogenesis of sepsis. This study was designed to explore the biological function and regulatory mechanism of cyclin-dependent kinase inhibitor 2B antisense RNA 1 (CDKN2B-AS1) in lipopolysaccharide (LPS)-induced lung injury. Read More

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ALK7 Inhibition Protects Osteoblast Cells Against High Glucose-induced ROS Production via Nrf2/HO-1 Signaling Pathway.

Curr Mol Med 2021 Jun 14. Epub 2021 Jun 14.

Department of Endocrinology, The Second Medical Center & National Clinical Research Center, Chinese PLA General Hospital, Haidian District, Beijing, 100853, China.

Background: Some studies demonstrated that under high-glucose (HG) condition, osteoblasts develop oxidative stress, which will impair their normal functions. The effects of activin receptor-like kinase 7 (ALK7) silencing on HG-induced osteoblasts remained unclear.

Objective: The aim of this study was to explore the effect of ALK7 on HG-induced osteoblasts. Read More

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Vitamin D alleviates hypoxia/reoxygenation-induced injury of human trophoblast HTR-8 cells by activating autophagy.

Placenta 2021 May 30;111:10-18. Epub 2021 May 30.

Department of Obstetrics and Gynecology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050000, China. Electronic address:

Introduction: Attenuation of trophoblast cell dysfunction would be beneficial for retarding pre-eclampsia (PE). Vitamin D has been reported to improve trophoblast cell function in early PE, but the mechanism involved is not fully elucidated. This study is aimed to investigate whether vitamin D alleviates trophoblast cell dysfunction via regulating autophagy. Read More

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Digestive promoting effect and mechanism of Jiao Sanxian in rats.

J Ethnopharmacol 2021 Jun 11:114334. Epub 2021 Jun 11.

Department of Traditional Chinese Medicine, China Pharmaceutical University, Nanjing, 210009, People's Republic of China. Electronic address:

Ethnopharmacological Relevance: Jiao Sanxian, a customary term for the three Traditional Chinese Medicines of charred hawthorn (Crataegi Fructus), charred malt (Hordei Fructus Germinatus) and Liu Shenqu (Massa Medicata Fermentata), is a classic prescription for the treatment of functional dyspepsia (FD). This prescription is called "Jiao Sanxian" in China because people believe that it is a miracle medicine for enhancing digestion and improving stagnation of digestive system. Even though Jiao Sanxian is widely used in clinical treatment, the underlying mechanism has not been clarified to date. Read More

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Transfusion-induced platelet antibodies and regulatory T cells in multiply transfused patients.

J Clin Lab Anal 2021 Jun 14:e23864. Epub 2021 Jun 14.

Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.

Background: Platelet transfusion refractoriness (PTR) remains a difficult problem in patients requiring long-term platelet supportive care. However, there are little data on the frequency of platelet antibodies in multiply transfused Chinese patients. Moreover, the relationship between peripheral regulatory T cells (Tregs) and PTR remains unclear. Read More

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Association analysis of -429T/C receptor for advanced glycation end products (RAGE) gene polymorphism with type 2 diabetic retinopathy and serum soluble RAGE levels in Pakistani patients.

J Pak Med Assoc 2021 Apr;71(4):1175-1180

Department of Biochemistry, Riphah International University, Islamabad, Pakistan.

Objective: To investigate the association of receptor for advanced glycation end products gene polymorphism 429T/C (rs1800625) with diabetic retinopathy and serum soluble receptor for advanced glycation end products levels in patients with type 2 diabetes.

Methods: The case-control study was conducted from January 2017 to December 2018 at Pakistan Railway Hospital, Rawalpindi, and the Multidisciplinary Laboratories of Islamic International Medical College, Riphah International University (RIU), Islamabad, Pakistan. Those included were healthy controls in group A, diabetics without retinopathy in group B and patients having diabetic retinopathy in group C. Read More

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Seroprevalence of SARS-CoV-2 (COVID-19) exposure in pet cats and dogs in Minnesota, USA.

Virulence 2021 12;12(1):1597-1609

Department of Veterinary & Biomedical Sciences, College of Veterinary Medicine, University of Minnesota, Twin Cities, USA.

The COVID-19 pandemic caused by the coronavirus SARS-CoV-2 is continuing to spread globally. SARS-CoV-2 infections of feline and canine species have also been reported. However, it is not entirely clear to what extent natural SARS-CoV-2 infection of pet dogs and cats is in households. Read More

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December 2021

Simple MoS-Nanofiber Paper-Based Fluorescence Immunosensor for Point-of-Care Detection of Programmed Cell Death Protein 1.

Anal Chem 2021 Jun 14. Epub 2021 Jun 14.

Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P. R. China.

Programmed cell death protein 1 (PD-1) is one of the coinhibitory checkpoints upon T cell activation, the abnormal expression of which severely threatens host immune modulatation for chronic infection. Thus, fast and sensitive monitoring of PD-1 is of vital importance for early diagnosis and cancer treatment. The current detection methods largely based on enzyme-linked immunosorbent assay (ELISA) require time-consuming incubation and complicated washing steps. Read More

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lncRNA myocardial infarction-associated transcript (MIAT) knockdown alleviates LPS-induced chondrocytes inflammatory injury via regulating miR-488-3p/sex determining region Y-related HMG-box 11 (SOX11) axis.

Open Life Sci 2021 31;16(1):511-522. Epub 2021 May 31.

Department of Orthopaedic, Taizhou Municipal Hospital, No. 381, Zhongshan East Road, Jiaojiang District, Taizhou 318000, Zhejiang, China.

Long noncoding RNA (lncRNA) has been shown to be involved in the development of osteoarthritis (OA), an age-related bone and joint disease. However, the function and possible molecular mechanism of lncRNA myocardial infarction-associated transcript (MIAT) in lipopolysaccharide (LPS)-induced chondrocytes injury model remain unexplored. Cell viability and apoptosis were detected by methyl thiazolyl tetrazolium (MTT) and flow cytometry, respectively. Read More

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Circ_0068087 Silencing Ameliorates Oxidized Low-Density Lipoprotein-Induced Dysfunction in Vascular Endothelial Cells Depending on miR-186-5p-Mediated Regulation of Roundabout Guidance Receptor 1.

Front Cardiovasc Med 2021 26;8:650374. Epub 2021 May 26.

Department of Cardiovascular Medicine, Affiliated Hospital of Weifang Medical University, Weifang, China.

Circular RNAs (circRNAs) are endogenous non-coding RNAs involved in the progression of atherosclerosis (AS). We investigated the role of circ_0068087 in AS progression and its associated mechanism. The 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide (MTT) assay, flow cytometry, and enzyme-linked immunosorbent assay (ELISA) were performed to analyze the viability, apoptosis, and inflammatory response of HUVECs, respectively. Read More

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Hydatid cyst of the ovary - a very rare type of cystic ovarian lesion: A case report.

Case Rep Womens Health 2021 Jul 28;31:e00330. Epub 2021 May 28.

Department of Surgery, College of Medicine, University of Duhok, Kurdistan Region, Iraq.

Background: Hydatid disease is a zoonotic condition caused by the adult or the larval stages of tapeworms belonging to the species or less commonly . The presentation depends on the site of involvement. Many cases are not symptomatic and may be discovered accidentally. Read More

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The Probable Association between Chronic Infection and Type 1 and Type 2 Diabetes Mellitus: A Case-Control Study.

Interdiscip Perspect Infect Dis 2021 24;2021:2508780. Epub 2021 May 24.

USERN Office, Abadan Faculty of Medical Sciences, Abadan, Iran.

Purpose: The probable association between () infection and diabetes mellitus (DM) is still controversial, and there are several studies with conflicting results. Thus, this study was performed to assess the possible association between chronic infection and type 1 diabetes mellitus (T1DM) and T2DM.

Methods: In this case-control study, a total of 105 diabetic subjects including 36 patients with T1DM and 69 patients with T2DM were recruited. Read More

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Lipocalin 10 as a New Prognostic Biomarker in Sepsis-Induced Myocardial Dysfunction and Mortality: A Pilot Study.

Mediators Inflamm 2021 22;2021:6616270. Epub 2021 May 22.

Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, China.

Introduction: Sepsis-induced myocardial dysfunction (SIMD) is the most common complications of sepsis and septic shock with extremely high incidence and mortality. Lipocalin 10 (Lcn10) has recently been identified as a potential biomarker for heart failure, yet its relation to sepsis has not been investigated. The purpose of this study was to explore whether circulating Lcn10 could be used as a prognostic tool in patients with SIMD. Read More

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Relationship between high CRP and cytokines in Saudi old people with dental caries in alkharj Region, Saudi Arabia.

Saudi J Biol Sci 2021 Jun 18;28(6):3523-3525. Epub 2021 Mar 18.

Dept of Med Lab Sci, College of Appl Med Sci, Prince Sattam University, Alkharj, Saudi Arabia.

Objective: Dental caries is one of the most common problems of the oral cavity which is frequently observed in older people. The aim of this study is to evaluate serum C-reactive proteins (CRP) levels and to identify the correlation between dental caries and CRP levels.

Methodology: The study included 12 aged patients with an average age of 65-years; the patients were diagnosed with dental caries and did not have clinical history of heart diseases, rheumatoid arthritis or any other infection. Read More

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Serum total adiponectin in healthy pre-pubertal nigerian school children.

Niger J Clin Pract 2021 Jun;24(6):821-827

Department of Paediatrics, Nnamdi Azikiwe University Teaching Hospital, Nnewi, Anambra State, Nigeria.

Background: Adiponectin is an excellent insulin sensitizer. It also possesses anti-inflammatory and anti-atherogenic properties that play a crucial role in the pathogenesis of cardio-metabolic disorders. Evaluating adiponectin distribution in children and factors that modulate its blood level is critical for advancing knowledge in its future role in managing associated non-communicable diseases. Read More

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Tethered peptide toxins for ion channels.

Methods Enzymol 2021 1;654:203-224. Epub 2021 Apr 1.

Departments of Pediatrics, Physiology & Biophysics, and Pharmaceutical Sciences, Susan and Henry Samueli College of Health Sciences, University of California, Irvine, CA, United States. Electronic address:

In this method paper, we describe protocols for using membrane-tethered peptide toxins (T-toxins) to study the structure/function and biophysics of toxin-channel interactions with two-electrode voltage clamp (TEVC). Here, we show how T-toxins can be used to determine toxin equilibrium affinity, to quantify toxin surface level by enzyme-linked immunosorbent assay (ELISA) and/or single-molecule total internal reflection fluorescence (smTIRF) microscopy, to assess toxin association and dissociations rate, to identify toxin residues critical to binding via scanning mutagenesis, and to study of toxin blocking mechanism. The sea anemone type I (SAK1) toxin HmK and a potassium channel are used to demonstrate the strategies. Read More

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Seroprevalence and risk factors of Toxoplasma gondii infection among veterinary personnel and abattoir workers in Central India.

Parasitol Int 2021 Jun 10:102402. Epub 2021 Jun 10.

ICAR-National Research Centre on Meat, Chengicherla, Hyderabad, India.

Toxoplasmosis, caused by the protozoan parasite Toxoplasma gondii, is an important zoonotic infection. Veterinary personnel and abattoir workers are considered to be at a high risk of T. gondii infection owing to their occupational exposure. Read More

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Lipopolysaccharide-induced depression is associated with estrogen receptor-α/SIRT1/NF-κB signaling pathway in old female mice.

Neurochem Int 2021 Jun 10:105097. Epub 2021 Jun 10.

Department of Pharmacy, Zhejiang Pharmaceutical College, Ningbo, 315000, China.

The present study aims to investigate the influence of sex/age on depressive-like behaviors in lipopolysaccharide (LPS)-challenged mice model, and explore the underlying mechanisms. Tail suspension test and forced swimming test were used to evaluate the depressive-like behaviors. SIRT1 mRNA expression was assessed by PCR. Read More

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Increased regulated on activation, normal T-cell expressed and secreted levels and cysteine-cysteine chemokine receptor 5 upregulation in omental adipose tissue and peripheral blood mononuclear cells are associated with testosterone level and insulin resistance in polycystic ovary syndrome.

Fertil Steril 2021 Jun 9. Epub 2021 Jun 9.

Department of Obstetrics and Gynecology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Obstetrics and Gynecology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan. Electronic address:

Objective: To study the relationship between circulating chemokine cysteine-cysteine motif ligand (CCL) 5 levels and cysteine-cysteine chemokine receptor type 5 (CCR5) expression in peripheral blood mononuclear cells (PBMCs) and adipose tissue with hyperandrogenism and insulin resistance in patients with polycystic ovary syndrome (PCOS).

Design: Case-control study.

Setting: University teaching hospital. Read More

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Circulating brain injury biomarkers increase after endoscopic surgery for pituitary tumors.

J Clin Neurosci 2021 Jul 12;89:113-121. Epub 2021 May 12.

Department of Neurosurgery, Sahlgrenska University Hospital, Gothenburg, Sweden; Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.

Pituitary tumors and subsequent treatment with endoscopic transsphenoidal surgery (ETSS) may cause injury to suprasellar structures, causing long-term fatigue and neurocognitive impairment. A method to quantify brain injury after ETSS is not available. In this prospective, exploratory study of patients undergoing ETSS for pituitary tumors, a novel approach to detect possible neuronal damage is presented. Read More

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Increased lipocalin 2 levels in adolescents with type 2 diabetes mellitus.

J Pediatr Endocrinol Metab 2021 Jun 14. Epub 2021 Jun 14.

Department of Pediatrics, Kansai Medical University, Hirakata, Osaka, Japan.

Objectives: Bone can act as an endocrine organ through the secretion of bone-specific hormones, i.e., osteokines. Read More

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Epidemiological feature, viral shedding, and antibody seroconversion among asymptomatic SARS-CoV-2 carriers and symptomatic/presymptomatic COVID-19 patients.

J Infect Public Health 2021 May 27;14(7):845-851. Epub 2021 May 27.

Department of Epidemiology, Second Military Medical University, Shanghai 200433, China. Electronic address:

Background: Novel coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is pandemic. However, data concerning the epidemiological features, viral shedding, and antibody dynamics between asymptomatic SARS-CoV-2 carriers and COVID-19 patients remain controversial.

Methods: We enrolled 193 SARS-CoV-2 infected subjects in Ningbo and Zhoushan, Zhejiang, China, from January 21 to March 6, 2020. Read More

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