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Clinical Laboratory

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https://www.readbyqxmd.com/read/29739064/serum-proteomic-analysis-by-tandem-mass-tags-tmt-based-quantitative-proteomics-in-gastric-cancer-patients
#1
Aidan Huang, Meiyu Zhang, Taijie Li, Xue Qin
BACKGROUND: To use the tandem mass tags (TMT) based quantitative proteomics technique and bioinformatics method to identify potential serum diagnostic biomarkers for gastric cancer (GC). METHODS: This study enrolled GC patients and healthy control subjects. Mixed serum samples were pooled with 10 individual samples. The high-abundance proteins depleted serum proteins were collected by removing abundance albumin and immunoglobulin G (IgG). After desalting and ultrafiltration, the trypsin digested proteins were analyzed using TMT based quantitative proteomics system...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739063/serum-homocysteine-as-a-prognostic-biomarker-for-short-term-mortality-in-hbv-related-acute-on-chronic-liver-failure-patients
#2
Hui Di Zhu, Ying Chun Ma
Background: The liver plays a central role in the synthesis and metabolism of homocysteine (Hcy). The present study aimed to determine the prognostic role of serum Hcy levels in patients with HBV-related acute-on-chronic liver failure (AoCLF). Methods: Fifty-two AoCLF and 52 chronic hepatitis B (CHB) patients were recruited. The virological parameters and biochemical examination of blood were obtained after 12 hours of fasting. In the AoCLF group, the relationships between the prognosis and the Hcy level were analyzed...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739062/new-molecular-and-epigenetic-expressions-as-novel-biomarkers-in-critically-ill-polytrauma-patients-with-acute-kidney-injury-aki
#3
REVIEW
Mihaela V Ivan, Alexandru F Rogobete, Ovidiu H Bedreag, Marius Papurica, Sonia E Popovici, Anca Dinu, Mihai Sandesc, Andrei Beceanu, Lavinia M Bratu, Calin M Popoiu, Dorel Sandesc, Ovidiu Boruga, Lazar Fulger
BACKGROUND: A high percentage of the critically ill polytrauma patients develop acute kidney injury (AKI) secondary to trauma and are therefore prone to high morbidity and mortality rates. One of the main objectives in these cases is the fast detection of the condition and continuous rigorous monitoring of the patients. Currently the panel of biomarkers available for monitoring and for the prognosis of AKI is limited. Numerous studies have proven the importance of microRNAs in this field...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739061/non-representative-results-compromise-comparative-studies-of-assay-performance
#4
LETTER
William Link, Cory Panattoni
No abstract text is available yet for this article.
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739060/lower-expression-of-mir-10a-in-coronary-artery-disease-and-its-association-with-pro-anti-inflammatory-cytokines
#5
Nariman Moradi, Reza Fadaei, Reza Ahmadi, Elham Kazemian, Soudabeh Fallah
BACKGROUND: Coronary artery disease (CAD) is the leading cause of death worldwide. Atherosclerosis, the main underlying cause of CAD, is a progressive inflammatory disease. microRNAs play a substantial role in the inflammatory process and pathogenesis of atherosclerosis. miR-155, a widely studied microRNA, is associated with inflammation but there are conflicting data regarding expression of miR-155 in CAD. miR-10a is also one of the key regulators of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) signaling pathway which have not been evaluated in peripheral blood mononuclear cells (PBMCs) of CAD patients...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739059/lncrna-pvt1-a-novel-therapeutic-target-for-cancers
#6
REVIEW
Xuefeng Pan, Guobao Zheng, Chunfang Gao
BACKGROUND: Long non-coding RNA PVT1, as an important carcinogenic lncRNA, is highly expressed in many malignant tumors and suggests a poorer prognosis. It can promote the occurrence and development of cancers by affecting cell proliferation, migration, invasion and apoptosis. This article reviews the progress of lncRNA PVT1 on cancer therapy, in order to facilitate the in-depth study of lncRNA PVT1 acting as a promising target for therapy in cancers. METHODS: We extracted all relevant studies of lncRNA PVT1 on the treatment of cancers by searching electronic databases Pubmed, Embase, Web of Science from inception to November 30, 2017...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739058/the-expression-profiles-of-microrna-let-7a-in-peripheral-blood-mononuclear-cells-from-patients-of-gastric-cancer-with-neoadjuvant-chemotherapy
#7
Wenxian Hu, Yongxia Chen, Kezhen Lv
BACKGROUND: The microRNA let-7a contains three copies of genes and is associated with various types of cancer, including gastric cancer. In this study, we aim to investigate the differential expression patterns of microRNA let7a in PBMCs from patients of gastric cancer (GC) before and after neoadjuvant chemotherapy. METHODS: The differential expression levels of let-7a were detected in PBMCs from 22 patients with GC before and after neoadjuvant chemotherapy by reverse transcription quantitative polymerase chain reaction (RT-qPCR)...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739057/cell-line-controls-for-the-genotyping-of-a-spectrum-of-human-single-nucleotide-polymorphisms-in-the-clinical-laboratory
#8
Christine Kimbacher, Christian Paar, Andrea Freystetter, Joerg Berg
BACKGROUND: Genotyping for clinically important single nucleotide polymorphisms (SNPs) is performed by many clinical routine laboratories. To support testing, quality controls and reference materials are needed. Those may be derived from residual patient samples, left over samples of external quality assurance schemes, plasmid DNA or DNA from cell lines. DNAs from cell lines are commutable and available in large amounts. METHODS: DNA from 38 cell lines were examined for suitability as controls in 11 SNP assays that are frequently used in a clinical routine laboratory: FV (1691G>A), FII (20210G>A), PAI-1 4G/5G polymorphism, MTHFR (677C>T, 1298A>C), HFE (H63D, S65C, C282Y), APOE (E2, E3, E4), LPH (-13910C>T), UGT1A1 (*28, *36, *37), TPMT (*2, *3A, *3B, *3C), VKORC1 (-1639G>A, 1173C>T), CYP2C9 (*2, *3, *5)...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739056/development-of-a-combined-human-transferrin-hemoglobin-lateral-immunochromatographic-assay-for-accurate-and-rapid-fecal-occult-blood-test
#9
Yuanyuan Ye, Yin Deng, Jinju Mao, Qin Yan, Yidan Huang, Jun Zhang, Jian Zheng, Yue Li, Weixian Chen
BACKGROUND: Fecal occult bloodtest (FOBT) plays an important role in the diagnosis of gastrointestinal diseases. The sensitivities of current FOBT methods are still not satisfactory. The aim of this study is to develop a combined human transferrin (HTf)-hemoglobin (HHb) lateral flow assay (LFA) for accurate and rapid FOBT. METHODS: Monoclonal antibodies (MAbs) targeting HTf were developed by conventional methods and paired using LFA strips. The best HTf MAb pair was chosen according to the overall performance on testing limit and specificity...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739055/evaluation-of-immunochromatographic-test-for-dual-detection-of-noroviruses-and-group-a-rotaviruses-in-stool-samples
#10
Pattara Khamrin, Kattareeya Kumthip, Aksara Thongprachum, Sayaka Takanashi, Shoko Okitsu, Niwat Maneekarn, Satoshi Hayakawa, Hiroshi Ushijima
BACKGROUND: Viral enteric infections, such as noroviruses and rotaviruses are considered as the major causes of acute gastroenteritis in young children and elderly people all over the world. These viruses are responsible for numerous outbreaks of nonbacterial gastroenteritis in several settings such as hospitals, day care centers, nursing homes, and restaurants. Therefore, a rapid and sensitive diagnostic tool for virus detections could be helpful for disease control. METHODS: A new immunochromatographic test for the dual detection of noroviruses and group A rotaviruses was evaluated by using specimens that were known to be positive for noroviruses and rotaviruses, as well as other diarrheal viruses...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739054/dioscin-promotes-proliferation-of-pancreatic-beta-cells-via-wnt-%C3%AE-catenin-signaling-pathways
#11
Fengyun Yu, Leilei Bing, Yanrong Xie, Wenjuan Yu
BACKGROUND: Dysfunction of pancreatic beta cells is related with type 2 diabetes mellitus. Dioscin, a natural steroid saponin, has many pharmacological effects. The aim of this study was to investigate the effects of dioscin on apoptosis of pancreatic beta cells induced by high glucose. METHODS: Pancreatic cell line RNAKT-15 was treated with 20 mM glucose with or without different concentrations of dioscin and viability and apoptosis of cells were measured. Western blot assay was used to measure the expression levels of some proteins such as phosphorylated glycogen synthase kinase 3β (GSK-3β) and β-catenin...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739053/fungal-infection-caused-by-geotrichum-capitatum-in-a-severe-aplastic-anemia-patient-a-case-report-and-review-of-the-literature
#12
Wulin Shan, Chunyang Dai, Jingsong Kan, Ming Li, Meiling Yin
BACKGROUND: Invasive fungal infections often occur in immunocompromised patients. Here, we report an infection case caused by Geotrichum capitatum in a severe aplastic anemia patient. METHODS: Identification of the pathogenic bacteria was done by sequencing and mass spectrometric analysis. RESULTS: The fungal infection was isolated from blood cultures. The pathogenic bacteria were identified as Geotrichum capitatum. The infection was primarily cured by voriconazole and caspofungin monotherapy...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739052/mechanism-comparison-of-gemcitabine-and-dasatinib-resistant-pancreatic-cancer-by-integrating-mrna-and-mirna-expression-profiles
#13
Zongjing Chen, Liang Zhao, Keqing Shi, Bicheng Chen
BACKGROUND: Pancreatic cancer is one of the most lethal cancers with limited treatment options. Gemcitabine has been the standard drug for patients with advanced pancreatic cancer. Dasatinib is a competitive inhibitor of Src kinase, which has shown promise in treatment of pancreatic cancer. Several studies have revealed the drug resistant mechanism of gemcitabine or dasatinib in human cancers; however, few reports focused on the different mechanisms of gemcitabine and dasatinib resistance in pancreatic cancer...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739051/association-between-metabolic-syndrome-and-the-serum-uric-acid-a-cohort-study
#14
Ping Ren, Mengna Gao
BACKGROUND: Metabolic syndrome (MS) consists of a cluster of metabolic diseases, and the association between serum uric acid (SUA) and MS has recently been reported in several studies; however, whether SUA is a susceptibility or risk biomarker for the development of MS among Chinese adults is unclear. This study was designed to investigate the relationship between SUA and MS. METHODS: This study involved 4,988 subjects who were followed up for 9 years. Cox regression model was used to analyze the risk factors of MS...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739050/effects-of-storage-conditions-on-urinary-lh-and-fsh-measurement-using-immunochemiluminometric-assay
#15
Yaping Ma, Zhuangjian Xu, Guixiong Gu, Feng Ren, Hua Jin, Wenying Zhu
BACKGROUND: Urine is a good alternative body fluid for gonadotropin studies. There was limited information about the effects of different storage conditions on urinary gonadotropin measurement by using immunochemiluminometric assay (ICMA). METHODS: ICMA was used to determine gonadotropin in urine stored under different conditions, such as different pH, storage time, and cycles of freeze-thaw. RESULTS: Luteinizing hormone (LH) level was not significantly affected at pH 2...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739049/expression-patterns-of-cxcl12-and-its-receptor-in-colorectal-carcinoma
#16
Ashraf Mousavi, Shahryar Hashemzadeh, Tayyeb Bahrami, Mehrdad Asghari Estiar, Mohammad A H Feizi, Nasser Pouladi, Leila Rostamizadeh, Ebrahim Sakhinia
BACKGROUND: Stromal cell-derived factor-1 (also called CXCL12) and its receptor, CXCR4, have a key role in the pathogenesis and tumorigenesis of various cancers. The aims of the current study were to quantitatively examine the expression of CXCR4 and CXCL12 genes in colorectal cancer and to correlate their expression degree with clinicopathological features. METHODS: Tumor tissue samples were collected from 47 patients with CRC. Total RNA was isolated from resection tissues and real-time PCR analysis was performed to examine mRNA levels of CXCL12 and CXCR4 genes...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739048/sirtuin-2-sirt2-expression-predicts-lymph-node-metastasis-and-poor-overall-survival-of-patients-with-esophageal-squamous-cell-carcinoma
#17
Li Yan, Xuemei Zhan, Zhongyao Jia, Lili Liu, Ning Jin
BACKGROUND: Altered expression of Sirtuin 2 (Sirt2) was associated with cancer development and progression. This study further assessed the association of Sirt2 expression with clinicopathological data and prognosis of patients with esophageal squamous cell carcinoma (ESCC) after postoperative concurrent chemoradiotherapy. METHODS: Tissue specimens from 95 ESCC patients were collected for immunohistochemical analysis of Sirt2 expression, which was used to determine association with patient clinicopathological and survival data...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739047/identification-of-differentially-expressed-micrornas-involved-in-the-pathogenesis-of-colorectal-cancer
#18
Haiyi Feng, Ming Xu, Yunpeng Zhang, Bo Han, Jue Wang, Peng Sun
BACKGROUND: The ability to diagnose or treat colorectal cancer (CRC) at an early stage could lead to the improved survival. The purpose of this study was to identify differentially expressed microRNAs (miRNAs) involved in the pathogenesis of CRC. These miRNAs may serve as the biomarkers or potential therapeutic targets for CRC early detection or treatment. METHODS: The GSE39814 miRNA expression profile dataset was downloaded from the NCBI GEO database. MiRNAs were extracted from the exosome fractions of three normal fetal colon-derived cells and HCT116 and SW480 cell lines...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739046/albumin-bilirubin-score-predicts-short-term-mortality-in-patients-with-hepatitis-b-virus-related-decompensated-cirrhosis
#19
Xiao T Qi
BACKGROUND: The albumin-bilirubin (ALBI) score is a new index for assessing the severity of liver dysfunction. Hepatitis B virus (HBV) related decompensated cirrhosis (HBV-DeCi) has a high short-term mortality rate. The purpose of this study was to elucidate the prognostic role of the ALBI score in patients with HBV-DeCi. METHODS: This retrospective study included 81 patients who had been diagnosed with HBV-DeCi. All patients were followed up with for at least 2 months, and the relationships between prognosis and ALBI score were analysed...
May 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29739045/fas-and-tumor-necrosis-factor-related-apoptosis-inducing-ligand-are-closely-linked-to-the-levels-of-glycated-and-fetal-hemoglobin-in-patients-with-diabetes-mellitus
#20
Jong Weon Choi, Tatsuyoshi Fujii, Noriyoshi Fujii
BACKGROUND: The aim of this study was to investigate the relationships between apoptotic markers and the levels of glycated and fetal hemoglobin (HbA1c and HbF) in diabetes. METHODS: The levels of Fas, tumor necrosis factor-related apoptosis-inducing ligand (TRAIL), HbF, and HbA1c were measured in 112 patients with type 2 diabetes. RESULTS: Diabetic patients with microalbuminuria had an elevated Fas level and a decreased TRAIL level, compared to healthy controls...
May 1, 2018: Clinical Laboratory
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