546,177 results match your criteria pcr


Human Neutrophil Elastase Mediates MUC5AC Hypersecretion via the Tumour Necrosis Factor-α Converting Enzyme-Epidermal Growth Factor Receptor Signalling Pathway in vivo.

ORL J Otorhinolaryngol Relat Spec 2021 Jun 15:1-9. Epub 2021 Jun 15.

Department of Otolaryngology, The First Affiliated Hospital of Nanchang University, Nanchang, China.

Objectives: The objective of this study is to examine the role of the tumour necrosis factor-α converting enzyme-epidermal growth factor receptor (TACE-EGFR) pathway in human neutrophil elastase (HNE)-induced MUC5AC mucin expression in mice.

Method: Four groups of mice, treated with HNE alone (HNE group), HNE plus TACE inhibitor (HNE + TAPI-2 group), HNE plus EGFR inhibitor (HNE + AG1478 group), and untreated (control group), were used in the experiment. Histopathological changes were monitored by haematoxylin-eosin (HE) and periodic acid-Schiff (PAS) staining. Read More

View Article and Full-Text PDF

Long Noncoding RNA GAS5 Targeting miR-221-3p/Cyclin-Dependent Kinase Inhibitor 2B Axis Regulates Follicular Thyroid Carcinoma Cell Cycle and Proliferation.

Pathobiology 2021 Jun 15:1-12. Epub 2021 Jun 15.

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

Introduction: Follicular thyroid carcinoma (FTC) is more aggressive than the most common papillary thyroid carcinoma (PTC). However, the current research on FTC is less than PTC. Here, we investigated the effects of long noncoding RNA (lncRNA) GAS5 and miR-221-3p in FTC. Read More

View Article and Full-Text PDF

A rise in Proteobacteria is an indicator of gut-liver axis-mediated nonalcoholic fatty liver disease in high-fructose-fed adult mice.

Nutr Res 2021 May 21;91:26-35. Epub 2021 May 21.

Laboratory of Morphometry, Metabolism, and Cardiovascular Diseases, Biomedical Center, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, Brazil. Electronic address:

Current evidence suggests that high fructose intake results in gut dysbiosis, leading to endotoxemia and NAFLD onset. Thus, the hypothesis of the study was that an enhanced Proteobacteria proportion in the cecal microbiota could be the most prominent trigger of NAFLD through enhanced endotoxin (LPS) in adult high-fructose-fed C57BL/6 mice. Male C57BL/6 mice received a control diet (n = 10, C: 76% of energy as carbohydrates, 0% as fructose) or high-fructose diet (n = 10, HFRU: 76% of energy as carbohydrate, 50% as fructose) for 12 weeks. Read More

View Article and Full-Text PDF

Activity of glutathione S-transferase and its π isoenzyme in the context of single nucleotide polymorphism in the GSTP1 gene (rs1695) and tobacco smoke exposure in the patients with acute pancreatitis and healthy subjects.

Biomed Pharmacother 2021 Jun 12;140:111589. Epub 2021 Jun 12.

Department of Biomedical and Environmental Analyses, Faculty of Pharmacy, Wroclaw Medical University, Wroclaw 50-556, Poland. Electronic address:

Oxidative stress associated with the course of acute pancreatitis (AP) can cause changes in the involvement of antioxidants, which can result in the increased production of free radicals with pro-inflammatory potential. Through its noncatalytic activity, the glutathione S-transferase and its π isoenzyme (GST-π), apart from cellular xenobiotics detoxification, are involved in the regulation of cellular signalling, metabolism and apoptosis. This study aimed to evaluate the impact of SNP rs1695 in the GSTP1 gene on GST and GST-π activity in healthy subjects and patients with acute pancreatitis (AP). Read More

View Article and Full-Text PDF

Generation of three human induced pluripotent stem cell sublines (UCLAi005-A, UCLAi005-B and UCLAi005-C) for reproductive science research.

Stem Cell Res 2021 Jun 8;54:102409. Epub 2021 Jun 8.

Department of Molecular, Cell and Developmental Biology, Los Angeles, CA 90095, USA; Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA USA; Molecular Biology Institute, University of California, Los Angeles, CA, USA. Electronic address:

We generated three human induced pluripotent stem cell (hiPSC) sublines from human dermal fibroblasts (HDF) (MZT05) generated from a skin biopsy donated from a previously fertile woman. The skin biopsy was broadly consented for generating hiPSC lines for biomedical research, including unique consent specifically for studying human fertility, infertility and germ cell differentiation. hiPSCs were reprogrammed using Sendai virus vectors and were subsequently positive for markers of self-renewal. Read More

View Article and Full-Text PDF

Nicotinamide mononucleotide-elicited NAMPT signaling activation aggravated adjuvant-induced arthritis in rats by affecting peripheral immune cells differentiation.

Int Immunopharmacol 2021 Jun 11;98:107856. Epub 2021 Jun 11.

Department of Traditional Chinese Medicine, the First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu 241000, China; Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu 241000, China; Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Wannan Medical College, Wuhu 241000, China. Electronic address:

Supplement of nicotinamide mononucleotide (NMN), the direct precursor of nicotinamide adenine dinucleotide (NAD) has gained prominence due to the significant anti-aging potentials of nicotinamide phosphoribosyltransferas (NAMPT)/NAD signaling. Because over-expression of NAMPT is deeply implicated in inflammatory arthritis, we investigated the effects of NMN supplement on rats with adjuvant-induced arthritis (AIA). Tested rats were given oral treatment of NMN at 200 mg/kg/day for 25 days. Read More

View Article and Full-Text PDF

A retrospective evaluation of the value of COVID-19 screening and testing in patients with cancer: Aiming at a moving target.

J Infect Public Health 2021 May 26;14(7):949-953. Epub 2021 May 26.

Department of Oncology, King Abdulaziz Medical City, King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs (MNGHA), Riyadh, Saudi Arabia.

Background: Diagnosis of COVID-19 infection in cancer patients is critical to co-manage their underlying disease and infection appropriately. Our study aimed at evaluating the sensitivity and specificity of screening patients with cancer for COVID-19 infection.

Methods: All oncology patients receiving care at Department of Oncology at King Abdulaziz Medical City in Riyadh were screened using the acute respiratory infection (ARI) survey. Read More

View Article and Full-Text PDF

Stroke Mechanism in COVID-19 Infection: A Prospective Case-Control Study.

J Stroke Cerebrovasc Dis 2021 Jun 1;30(8):105919. Epub 2021 Jun 1.

Department of Neurology, Hacettepe University Hospitals Turkey.

Background: The characteristics and pathophysiological mechanisms involved in acute ischemic stroke in patients with COVID-19 infection have not been fully clarified. We prospectively studied the phenotypic and etiological features of acute stroke occurring in COVID-19 infection.

Patients & Methods: Within nine months starting from April-2020, the presence of COVID-19 infection was determined by thoracic CT and SARS-CoV-2 PCR in all acute stroke cases managed in a single tertiary center. Read More

View Article and Full-Text PDF

Diagnosing Strongylus vulgaris in pooled fecal samples.

Vet Parasitol 2021 Jun 8;296:109494. Epub 2021 Jun 8.

Texas Tech University, School of Veterinary Medicine, Amarillo, TX, USA.

Strongylus vulgaris is the most pathogenic intestinal helminth parasite infecting horses. The migrating larvae in the mesenteric blood vessels can cause non-strangulating intestinal infarctions, which have a guarded prognosis for survival. Infections are typically diagnosed by coproculture, but a PCR test is available in some countries. Read More

View Article and Full-Text PDF

Development of highly sensitive one step-PCR tests for improved detection of B. bigemina and B. bovis.

Vet Parasitol 2021 Jun 8;296:109493. Epub 2021 Jun 8.

Instituto de Agrobiotecnología y Biología Molecular (IABIMO) INTA - CONICET, de Los Reseros y Dr. Nicolás Repetto s/n, P.O. Box 25 (B1712WAA), Castelar, Buenos Aires, Argentina.

Bovine babesiosis caused by Babesia bigemina and B. bovis is an economically relevant tick-borne disease distributed over tropical and subtropical world regions. Animals that recover from the clinical disease can remain persistently infected, and those carriers are epidemiologically relevant since they can act as a source of infection to other animals through the tick bite. Read More

View Article and Full-Text PDF

Mesenchyme homeobox 1 mediated-promotion of osteoblastic differentiation is negatively regulated by mir-3064-5p.

Differentiation 2021 Jun 10;120:19-27. Epub 2021 Jun 10.

Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Qingdao University, No. 59 Haier Road, Qingdao, 266000, Shandong, China. Electronic address:

Human mesenchymal stem cells (hMSCs) are multipotent cells that can be differentiated into different cell types including osteoblasts. Herein we aimed to assess the regulation of transcription factor mesenchyme homeobox 1 (Meox1) in the osteogenic differentiation of hMSCs and to determine the microRNA which targets on Meox1. Total RNA was extracted from the isolated ligamentum flavum tissue samples and cultured hMSCs, and the expression of Meox1 was assessed by RT-PCR and Western blot assays. Read More

View Article and Full-Text PDF

Microscopic and molecular detection of Deraiophoronema evansi (Lewis, 1882) in domestic Bactrian camels (Camelus bactrianus) of Mongolia.

Parasitol Int 2021 Jun 12:102404. Epub 2021 Jun 12.

Institute of Veterinary Medicine, Mongolian University of Life Science, Zaisan, 17042, Ulaanbaatar, Mongolia. Electronic address:

Cameline filarosis is an important parasitic disease having an economic impact on the camel industry around the world. However, there has been no study on filarosis in Bactrian camels of Mongolia. Therefore, the aim of the present study was to detect and identify microfilariae of Deraiophoronema evansi (D. Read More

View Article and Full-Text PDF

Combining gene expression signature with clinical features for survival stratification of gastric cancer.

Genomics 2021 Jun 12. Epub 2021 Jun 12.

Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou 310058, China; Institute of Gastroenterology, Zhejiang University, Hangzhou 310016, China; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang 310003, China; Department of Molecular Genetics, University of Toronto, Toronto, ONM5S 1A8, Canada. Electronic address:

The AJCC staging system is considered as the golden standard in clinical practice. However, it remains some pitfalls in assessing the prognosis of gastric cancer (GC) patients with similar clinicopathological characteristics. We aim to develop a new clinic and genetic risk score (CGRS) to improve the prognosis prediction of GC patients. Read More

View Article and Full-Text PDF

Interleukin 4 and Interleukin 4 receptor alpha gene variants and risk of atopy - A case control study based assessment.

Clin Immunol 2021 Jun 12:108783. Epub 2021 Jun 12.

Department of Clinical Biochemistry, Sher-I-Kashmir Institute of Medical Sciences (SKIMS), Soura, 190011, J&K, India. Electronic address:

Introduction: IL4 pathway is known to upregulate IgE mediated immune responses and responsible for the manifestation of Atopic disorders. The current study was aimed to elucidate the genetic variations of Interleukin 4 (IL4) and Interleukin 4 receptor alpha (IL4R) genes and their possible association with atopic subjects.

Methods: The well-designed questionnaire was used to collect the subject demographic and clinical details. Read More

View Article and Full-Text PDF

Seneca Valley virus induces immunodepressionin suckling piglets by selective apoptosis of B lymphocytes.

Microb Pathog 2021 Jun 12:105022. Epub 2021 Jun 12.

Comparative Pathology Shared Resources Laboratory, Masonic Cancer Center, University of Minnesota, Saint Paul, MN, USA. Electronic address:

Seneca Valley virus (SVV) is the causative agent of an emerging infectious vesicular disease in swine that is clinically indistinguishable from other vesicular diseases of swine. This study utilized healthy suckling piglets (control) and SVV-naturally infected suckling piglets to determine the effects of SVV on lymphoid tissues and determined the SVV RNA load by quantitative RT-PCR (qRT-PCR). Furthermore, immunohistochemistry (IHC) analyses were performed to quantify the expression of T and B cell lymphocytes, natural killer cells, cleaved caspase 3, and ki-67. Read More

View Article and Full-Text PDF

Loss of hepatocyte identity following aberrant YAP activation: a key mechanism in alcoholic hepatitis.

J Hepatol 2021 Jun 12. Epub 2021 Jun 12.

Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, F-59000 Lille, France. Electronic address:

Background & Aims: Alcoholic hepatitis (AH) is a life-threatening disease with limited therapeutic options, because understanding of the molecular drivers leading to death are not well understood. This study evaluates the Hippo/Yes-associated protein (YAP) pathway which has been shown to play a role in liver regeneration.

Method: The Hippo/YAP pathway was dissected in explants of patients transplanted for AH or alcoholic cirrhosis and in control livers, using RNA-Seq, real-time PCR, Western blot, immunohistochemistry (IHC) and transcriptome analysis after laser microdissection. Read More

View Article and Full-Text PDF

Comparative analysis of the miRNA-mRNA regulation networks in turbot (Scophthalmus maximus L.) following Vibrio anguillarum infection.

Dev Comp Immunol 2021 Jun 12:104164. Epub 2021 Jun 12.

School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China. Electronic address:

MicroRNAs could not only regulate posttranscriptional silencing of target genes in eukaryotic organisms, but also have positive effect on their target genes as well. These microRNAs have been reported to be involved in intestine mucosal immune responses to pathogen infection in teleost. Therefore, we constructed the immune-related miRNA-mRNA networks in turbot intestine following V. Read More

View Article and Full-Text PDF

Efficient and effective single-step screening of individual samples for SARS-CoV-2 RNA using multi-dimensional pooling and Bayesian inference.

J R Soc Interface 2021 Jun 16;18(179):20210155. Epub 2021 Jun 16.

Department of Chemistry, University of Utah, Salt Lake City, UT, USA.

Rapid and widespread implementation of infectious disease surveillance is a critical component in the response to novel health threats. Molecular assays are the preferred method to detect a broad range of viral pathogens with high sensitivity and specificity. The implementation of molecular assay testing in a rapidly evolving public health emergency, such as the ongoing COVID-19 pandemic, can be hindered by resource availability or technical constraints. Read More

View Article and Full-Text PDF

Differential Clinical Diagnosis and Prevalence Rate of Allergic Rhinitis, Asthma, and Chronic Obstructive Pulmonary Disease among COVID-19 Patients.

Int J Clin Pract 2021 Jun 15:e14532. Epub 2021 Jun 15.

Clinical Pharmacy Department, Faculty of Pharmacy, Beni-suef University, Beni-suef, Egypt.

Background: There is a great need to make a rapid differential clinical diagnosis of COVID-19 among respiratory disease patients and determining the prevalence rate of these diseases among the COVID-19 population.

Method: Approximately 522 patients with allergic rhinitis, asthma, COPD, and COVID-19 were analyzed for demographic and clinical features. Radiological features were analyzed only for COVID-19 patients. Read More

View Article and Full-Text PDF

CD25+ B Cells Produced IL-35 and Alleviates Local Inflammation during Experimental Periodontitis.

Oral Dis 2021 Jun 15. Epub 2021 Jun 15.

Department of Periodontology, the Fourth Hospital of Harbin Medical Uuniversity, Harbin, China.

Background And Objective: Host immunity is crucial during periodontal inflammations. B cells are considered to have a function of immunoregulation, and TLRs are considered to be crucial in this process. The present study illustrates the potential roles and rules of CD25+ B cells during periodontitis, especially its effect on regulating host IL-35 level and Th1, Th17, and Tregs differentiation. Read More

View Article and Full-Text PDF

Evaluation of Different Materials Used for Sealing of Implant Abutment Access Channel and the Peri-implant Sulcus Microbiota: A 6 Month, Randomized Controlled Trial.

Clin Oral Implants Res 2021 Jun 15. Epub 2021 Jun 15.

Department of Periodontology, School of Dental Medicine, Stony Brook University, New York, United States.

Objective: Peri-implantitis has been attributed to a myriad of factors, including microleakage at the abutment-implant interface. Implant abutment access channel sealing materials (IACSM) are readily used in implant dentistry, with little evidence on their effect on microleakage. This study aims to evaluate the effect of IACSM on the microbial composition in the implant access channel and the peri-implant sulcus. Read More

View Article and Full-Text PDF

SARS-CoV-2 screening among people living in homeless shelters in Brussels, Belgium.

PLoS One 2021 15;16(6):e0252886. Epub 2021 Jun 15.

Research Center in Epidemiology, Biostatistics and Clinical Research, School of Public Health, Université Libre de Bruxelles (ULB), Brussels, Belgium.

Background: Subgroups of precarious populations such as homeless people are more exposed to infection and at higher risk of developing severe forms of COVID-19 compared to the general population. Many of the recommended prevention measures, such as social distancing and self-isolation, are not feasible for a population living in shelters characterised by physical proximity and a high population density. The objective of the study was to describe SARS-CoV-2 infection prevalence in homeless shelters in Brussels (Belgium), and to identify risk factors and infection control practices associated with SARS-CoV-2 positivity rates. Read More

View Article and Full-Text PDF

Spatial-temporal dynamics and influencing factors of archaeal communities in the sediments of Lancang River cascade reservoirs (LRCR), China.

PLoS One 2021 15;16(6):e0253233. Epub 2021 Jun 15.

State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China.

The spatial and temporal distribution of the archaeal community and its driving factors in the sediments of large-scale regulated rivers, especially in rivers with cascade hydropower development rivers, remain poorly understood. Quantitative PCR (qPCR) and Illumina MiSeq sequencing of the 16S rRNA archaeal gene were used to comprehensively investigate the spatiotemporal diversity and structure of archaeal community in the sediments of the Lancang River cascade reservoirs (LRCR). The archaeal abundance ranged from 5. Read More

View Article and Full-Text PDF

Molecular investigation of tick-borne pathogens in ticks removed from tick-bitten humans in the southwestern region of the Republic of Korea.

PLoS One 2021 15;16(6):e0252992. Epub 2021 Jun 15.

Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Republic of Korea.

In this study, we investigated the presence of tick-borne pathogens in ticks removed from tick-bitten humans in the southwestern provinces of the Republic of Korea (ROK). We identified 33 ticks from three tick species, namely Amblyomma testudinarium (60.6%), Haemaphysalis longicornis (27. Read More

View Article and Full-Text PDF

Laboratory evaluation of the rapid diagnostic tests for the detection of Vibrio cholerae O1 using diarrheal samples.

PLoS Negl Trop Dis 2021 Jun 15;15(6):e0009521. Epub 2021 Jun 15.

Division of Bacteriology, ICMR-National Institute of Cholera and Enteric Diseases, Kolkata, India.

Background: Cholera, an acute diarrheal disease is a major public health problem in many developing countries. Several rapid diagnostic tests (RDT) are available for the detection of cholera, but their efficacies are not compared in an endemic setting. In this study, we have compared the specificity and sensitivity of three RDT kits for the detection of Vibrio cholerae O1 and compared their efficiency with culture and polymerase chain reaction (PCR) methods. Read More

View Article and Full-Text PDF

Platycodin D attenuates airway inflammation via suppression Th2 transcription factor in a murine model of acute asthma.

J Asthma 2021 Jun 15:1-13. Epub 2021 Jun 15.

Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.

Bronchial asthma is a common chronic inflammatory condition of the airway tissue. Platycodin D (PLD) has anti-inflammatory effects in a mouse model of allergic asthma. In this work, the anti-asthma potential of PLD was studied by investigation of its effect to suppress airway inflammation and mucin production, a murine model of asthma and the possible mechanisms. Read More

View Article and Full-Text PDF

Genetic Alterations Associated with Polymyxin B Resistance in Nosocomial KPC-2-Producing from Brazil.

Microb Drug Resist 2021 Jun 15. Epub 2021 Jun 15.

Laboratório de Microbiologia Molecular, Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia, Brazil.

The rapid increased multidrug resistance in has led to a renewed interest in polymyxin antibiotics, such as colistin, as antibiotics of last resort, not least in low/middle income countries. We conducted a genomic survey of clinical polymyxin-resistant to investigate the genetic alterations in isolates harboring . Whole-genome sequencing was performed using an Illumina NextSeq 500 paired-end reads. Read More

View Article and Full-Text PDF

Diversity of , Giles (Diptera: Culicidae) Larval Habitats in Urban Areas and Malaria Transmission in Bouaké, Côte d'Ivoire.

Vector Borne Zoonotic Dis 2021 Jun 14. Epub 2021 Jun 14.

Maladies Infectieuses et Vecteurs, Ecologie, Génétique, Evolution et Contrôle, IRD, CNRS, Université de Montpellier, Montpellier, France.

Malaria vectors are supposedly uncommon in urban areas owing to the lack of suitable breeding sites for their development. However, the maintenance in urban areas of traditional rural practices along with humanitarian crisis can create favorable conditions for malaria transmission. This study aimed to provide relevant entomological data on the risk of malaria transmission in the city of Bouaké, after the military-political crisis from 2002 to 2011 in Côte d'Ivoire. Read More

View Article and Full-Text PDF

First Report of Brown Spot Needle Blight on Pinus thunbergii Parl. Caused by Aureobasidium pullulans in China.

Plant Dis 2021 Jun 15. Epub 2021 Jun 15.

Nanjing Forestry University, 74584, College of Forestry, 159 Longpan Road, Nanjing, China, 210037;

Pinus thunbergii Parl., known as black pine, is widely distributed all over China. This pine variety can prevent soil desertification and promote soil conservation and is excellent for constructing fast-growing forests and shelter belts. Read More

View Article and Full-Text PDF

First report of infecting white clover () in Finland.

Plant Dis 2021 Jun 15. Epub 2021 Jun 15.

Finnish Food Authority, Laboratory and Research, Mustialankatu 3, Helsinki, Finland, 00790;

Soybean dwarf virus (SbDV, genus ) is a single-stranded positive-sense RNA virus able to infect several legume species. SbDV was first reported in Japan where it was associated with significant yield losses in soybean (Tamada, 1969). Since then the virus has been detected worldwide. Read More

View Article and Full-Text PDF