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Journal of Clinical Laboratory Analysis

Chunfu Wan, Zhihua Li
OBJECTIVE: Macrophage migration inhibitory factor (MIF) is a proinflammatory cytokine secreted by macrophages. This study is performed to investigate whether serum MIF is correlated with atrial fibrillation (AF). METHODS: Totally, 186 AF patients and 103 healthy controls were enrolled in this study. AF patients were then divided into paroxysmal AF, persistent AF, and permanent AF subgroups. RESULTS: There were higher serum MIF concentrations in AF patients than in healthy subjects...
April 13, 2017: Journal of Clinical Laboratory Analysis
Xiu-Ming Zhang, Dong-Mei Wen, Sheng-Nan Xu, Ming-Huan Suo, Ya-Qiong Chen
BACKGROUND: To explore the effects of HbJ Bangkok, HbE, HbG Taipei, and α-thalassemia HbH on the results of HbA1c assessment using ion-exchange high-performance liquid chromatography (IE-HPLC). METHODS: We enrolled five patients in which the results of the IE-HPLC HbA1c assay were inconsistent with the average levels of FBG. We performed hemoglobin capillary (Hb) electrophoresis using whole-blood samples. We also sequenced the genes encoding Hb using dideoxy-mediated chain termination and analyzed HbA1c using borate affinity HPLC (BA-HPLC) and turbidimetric inhibition immunoassay (TINIA)...
April 13, 2017: Journal of Clinical Laboratory Analysis
Jiangyan Huang, Qin Yang, Longmiao He, Jun Huang
BACKGROUND: To study the role of toll-like receptor 4 (TLR4) and MicroRNA-155 (miR-155) in the peripheral blood mononuclear cell (PBMC)-mediated inflammation in coronary slow flow (CSF) and coronary arteriosclerosis. METHODS: Patients were divided into acute coronary syndrome (ACS), stable angina pectoris (SAP), CSF, and healthy control (HC) groups. The isolated PBMCs were treated with lipopolysaccharide (LPS)/and antagomiR-155. TLR4, miR-155, and the concentrations of tumor necrosis factor (TNF)-α, interleukin (IL)-6, IL-1, and IL-10 were measured...
April 13, 2017: Journal of Clinical Laboratory Analysis
Sook Won Ryu, In Bum Suh, Se-Min Ryu, Kyu Sung Shin, Hyon-Suk Kim, Juwon Kim, Young Uh, Kap Jun Yoon, Jong-Han Lee
BACKGROUND: Rapid influenza diagnostic tests (RIDTs) show variable sensitivities in clinical settings. We aimed to compare three digital RIDTs and one conventional RIDT. METHODS: We assessed 218 nasopharyngeal swabs from patients between neonates and 90 years old in 2016. Three digital RIDTs were BUDDI, Sofia Influenza A+B Fluorescence Immunoassay, Veritor System Flu A+B assay. One conventional test was the SD Bioline Influenza Ag A/B/A(H1N1/2009). All test results were compared with those from the Anyplex Flu A/B Typing Real-time Detection real-time PCR...
April 13, 2017: Journal of Clinical Laboratory Analysis
Alain Nicolay, Anne-Marie Lorec, Guy Gomez, Henri Portugal
BACKGROUND: Hemolysis, Icterus, and Lipemia constituting the HIL index, are the most common causes of interference with accurate measurement in biochemistry. This study focuses on bilirubin interference, aiming to identify the analyses impacted and proposing a way to predict nominal interference-free analyte concentrations, based on both analyte level and Icterus Index (Iict ). METHODS: Sixteen common analytes were studied: alanine aminotransferase (ALT), albumin (ALB), alkaline phosphatase (ALP), amylase (AMY), aspartate aminotransferase (AST), total cholesterol (CHOLT), creatinine (CREA, enzymatic method), fructosamine (FRUC), gamma-glutamyl transferase (GGT), HDL cholesterol (HDLc), total iron (Iron), lipase (LIP), inorganic phosphorus (Phos), total protein (PROT), triglycerides (TG), and uric acid (UA)...
April 11, 2017: Journal of Clinical Laboratory Analysis
Seung Gyu Yun, Min Young Kim, Jong Moon Choi, Chang Kyu Lee, Chae Seung Lim, Yunjung Cho, In Bum Suh
BACKGROUND: Due to its great sensitivity, the nucleic acid amplification test (NAAT) is widely used for detection of respiratory viruses (RV). However, few reports have described a direct comparison between multiplex RT-PCR assays for RV. The objective of this study was to perform a direct comparison of three multiplex RT-PCR assays for the detection of respiratory viruses. METHODS: A total of 201 respiratory samples (161 nasopharyngeal swab samples and 40 sputum samples) were tested with three commercial RV assays: Seegene Anyplex II RV16 (AP), LG AdvanSure RV (AD), and Biosewoom Real-Q RV (RQ)...
April 11, 2017: Journal of Clinical Laboratory Analysis
Chalirmporn Atasilp, Pichai Chansriwong, Ekapob Sirachainan, Thanyanan Reungwetwattana, Apichaya Puangpetch, Santirhat Prommas, Suwannee Sirilerttrakul, Budsaba Rerkarmnuaychoke, Sansanee Wongwaisayawan, Chonlaphat Sukasem
BACKGROUND: Irinotecan (CPT-11) is chemotherapy used mainly in the metastatic colorectal cancer. The purpose of this study was to develop and validate the LC-MS/MS for the simultaneous determination of CPT-11, SN-38, and SN-38G. METHODS: A 100 μL of plasma was prepared after protein precipitation and analyzed on a C18 column using 0.1% acetic acid in water and 0.1% acetic acid in acetonitrile as mobile phases. The mass spectrometer worked with multiple reaction monitoring (MRM) in positive scan mode...
April 10, 2017: Journal of Clinical Laboratory Analysis
Yuan-Yuan Qin, Peng Wang, Jin-Qiu Qin, Ai-Qiu Wei, Ping Huang, Zhan-Feng Lai, Fa-Quan Lin
BACKGROUND: Studies on homocysteine (Hcy) have mainly focused on the correlation between the homocysteine concentration and disease development. Few epidemiological investigations have been performed. This study was conducted to investigate the prevalence of hyperhomocysteinemia (HHcy) during routine physical examination in Guangxi Province, China and the correlation of serum Hcy with gender, age, serum uric acid (UA), total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and blood glucose (GLU) to provide evidence for preventing and treating HHcy...
April 10, 2017: Journal of Clinical Laboratory Analysis
Nesrine Zayani, Haithem Hamdouni, Imen Boumaiza, Ons Achour, Fadoua Neffati, Asma Omezzine, Mohamed Fadhel Najjar, Ali Bouslama
BACKGROUND: Adipose tissue is an important endocrine organ that secretes a number of adipokines, like Resistin (RETN); it's an adipocytes-secreted cytokine and has been proposed as a link between obesity and diabetes. Many resistin gene polymorphisms were described and their implication in obesity was controversial. This study was to investigate the prevalence of single nucleotide polymorphisms (SNPs) in RETN gene 420C/G; 44G/A; 62G/A; 394C/G and 299 G/A and their association with Resistin level and obesity in Tunisian volunteers...
April 10, 2017: Journal of Clinical Laboratory Analysis
Hui-Qing Huang, Yan Zhang, Hua-Guo Xu
BACKGROUND: Prostate-specific antigen (PSA) is used as an indicative marker of a pathologic condition of the prostate, and the ratio of free PSA (fPSA) to total PSA (tPSA) helps to distinguish benign prostatic hyperplasia (BPH) from prostate cancer (PCa). In this study, we present some reversed ratios of fPSA to tPSA and analyze the possible mechanism. METHODS: Using the UniCel DxI800 Access Immunoassay System, eight reversed fPSA to tPSA ratios were obtained, and then these samples were retested with an Abbott Architect i2000 Immunoassay Analyser and Cobas e602...
April 6, 2017: Journal of Clinical Laboratory Analysis
Qing-Hua Min, Xi-Min Chen, Ye-Qing Zou, Jing Zhang, Jing Li, Yan Wang, Shu-Qi Li, Qiu-Fang Gao, Fan Sun, Jing Liu, Yan-Mei Xu, Jin Lin, Lin-Feng Huang, Bo Huang, Xiao-Zhong Wang
BACKGROUND: Immunoglobulin A nephropathy (IgAN) is the most common type of primary glomerulonephritis in the world. Reliable biomarkers are required for the non-invasive diagnosis and monitoring of IgAN. This study aims to investigate the difference in urinary exosomal microRNA (miRNA) expression profiles between patients with IgA nephropathy (IgAN) and healthy controls, which may provide clues to identify novel potential non-invasive miRNA biomarkers for renal diseases. METHODS: Urine samples were collected from eighteen healthy controls and eighteen patients with IgAN...
April 6, 2017: Journal of Clinical Laboratory Analysis
Simon Degandt, Rémy Coens, Barbara Cauwelier, Helena Devos, Michel Langlois, Jan Emmerechts
BACKGROUND: Four automated hemoglobin separation devices are compared in their ability to detect hemoglobinopathies, both in HbA1c and in hemoglobinopathy mode. METHODS: Quality control material and 58 samples, including one heterozygous α-thalassemia sample, six heterozygote β-thalassemia samples and 32 samples with a known hemoglobin variant, were used to assess imprecision of HbF and HbA2 measurements, correlation with the gold standard and sensitivity for detecting β-thalassemia and Hb variants on D-100 (Bio-Rad Laboratories), HA 8180T (Menarini), HLC-723G8 (Tosoh Bioscience) and Capillarys 2 Flex Piercing (Sebia)...
April 6, 2017: Journal of Clinical Laboratory Analysis
Elif Azarsiz, Neslihan Karaca, Birgul Ergun, Mehmet Durmuscan, Necil Kutukculer, Guzide Aksu
BACKGROUND: Functional studies besides routine laboratory tests for the definitive diagnosis of T lymphocyte disorders with isolated T or combined T/B-cell immunodeficiencies are important. We hereby summarized our experience with a carboxyfluorescein diacetate succinimidyl ester (CFSE)-based assay for the assessment of mitogenic T-cell proliferation responses in primary immunodeficiency (PID) patients who have not been diagnosed yet or genetically analyzed, but classified as probably having T-cell defects...
April 6, 2017: Journal of Clinical Laboratory Analysis
Xianchun Meng, Qian Chang, Yuying Liu, Ling Chen, Gaohui Wei, Jingjing Yang, Peiguo Zheng, Fucheng He, Wanhai Wang, Liang Ming
OBJECTIVES: By now, there are few data of the reference intervals (RIs) of SII, PLR, NLR, LMR and MLR. We aimed to establish RIs of SII, PLR, NLR, LMR and MLR for healthy persons. METHODS: A retrospective analysis on a cohort of ostensibly healthy, aged no <18 years old physical examinees who took health examination from January to December in 2013 was conducted to explore influences of age and gender on SII, PLR, NLR, LMR and MLR and to establish their RIs...
April 5, 2017: Journal of Clinical Laboratory Analysis
Carolina Bonet Bub, Maria Giselda Aravechia, Thiago Henrique Costa, José Mauro Kutner, Lilian Castilho
BACKGROUND: A considerable number of RHD alleles responsible for weak and partial D phenotypes have been identified. Serologic determination of these phenotypes is often doubtful and makes genetic analysis of RHD gene highly desirable in transfusion recipients and pregnant women. We analyzed the RHD gene in a cohort of pregnant women with doubtful D phenotypes. METHODS: RHD genotyping was performed on 104 cases with D typing discrepancies or with history of serologic weak D phenotype...
April 4, 2017: Journal of Clinical Laboratory Analysis
Rim Frikha, Nouha Bouayed, Bochra Ben Rhouma, Leila Keskes, Tarek Rebai
BACKGROUND: Methylenetetrahydrofolate reductase (MTHFR; NM_005957.4) is the key enzyme for folate metabolism which plays in DNA biosynthesis and the epigenetic process of DNA methylation. MTHFR gene polymorphisms, the c. 677C>T and c. 1298A>C have been implicated as risk factors for several types of cancers as the acute leukemia. AIM: We have optimized a duplex polymerase chain reaction-restriction fragment length polymorphism assay (PCR-RFLP) for the simultaneous detection of both variants in acute leukemia patients, from Tunisia...
April 4, 2017: Journal of Clinical Laboratory Analysis
Arij Mechergui, Wafa Achour, Assia Ben Hassen
BACKGROUND: We investigated the diversity of the primary sequences of the 16S rRNA genes among 46 commensal Neisseria strains and evaluated the use of this approach as a molecular typing tool in comparison with PFGE analysis. METHODS: Identification to the genus was done using conventional methods and API NH (bio-Mérieux(®) ). Identification to species level was based on 16S rRNA gene sequencing. PFGE analysis was done using SpeI. RESULTS: Fourteen, two, three and fourteen 16S rRNA sequence types were found among twenty Neisseria flavescens, two Neisseria sicca, five Neisseria macacae and nineteen Neisseria mucosa clinical isolates...
April 4, 2017: Journal of Clinical Laboratory Analysis
Raymond Farah, Hamza Hamza, Rola Khamisy-Farah
PURPOSE: Chronic Helicobacter pylori gastritis affects two-thirds of the world's population and is one of the most common chronic inflammatory disorders of humans, the infection clearly results in chronic mucosal inflammation in the stomach and duodenum, which, in turn, might lead to abnormalities in gastroduodenal motility and sensitivity and is the most frequent cause of dyspepsia and peptic disease. Some studies showed that there was a correlation between low-grade inflammation as CRP and HP infection...
April 4, 2017: Journal of Clinical Laboratory Analysis
Marco Benati, Martina Montagnana, Elisa Danese, Elisa Paviati, Silvia Giudici, Orazio Ruzzenente, Massimo Franchi, Giuseppe Lippi
BACKGROUND: The non-invasive diagnostic approach for early detection of endometrial cancer (EC) remains limited. To date, human epididymis protein 4 (HE4) has been intensively studied but its diagnostic is controversial in EC. DJ-1 is an oncoprotein secreted by cancer cells, recently identified as a potential diagnostic biomarker for breast cancer, melanoma, and pancreatic cancer. The aim of this study was to compare the diagnostic performances of DJ-1 and HE4 measured in EC patients and healthy controls (HC)...
April 4, 2017: Journal of Clinical Laboratory Analysis
Takahiro Sumimoto, Ryosuke Nakahara, Yuhki Sato, Hiroki Itoh
BACKGROUND: We propose a simple, sensitive, and fast high-performance liquid chromatography ultraviolet detection (HPLC-UV) method for the quantitative determination of bosutinib in human plasma. METHODS: Plasma samples were processed using an Oasis hydrophilic-lipophilic balance extraction cartridge (1 mL, 30 mg). Bosutinib and the internal standard imatinib were separated using a mobile phase of 0.5% Na2 PO4 H2 O (pH 3.5)-acetonitrile-methanol (55:25:20, v/v/v) on a CAPCELL PAK C18 MG II reversed-phase column 250 nm×4...
April 4, 2017: Journal of Clinical Laboratory Analysis
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