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Journal of Clinical Laboratory Analysis

Yuan Huang, Ling Wei, Ai-Min Sun, Bo Li, Cheng-Jun Sun, Wei-Bo Liang, Qiu-Ying Liu, Xiao-Qin Yu, Jing-Yang He, Yang Qin
BACKGROUND: Hepatocellular carcinoma (HCC) is a malignant tumor that severely threatens human health. To date, early detection for HCC patients is particularly significant due to their poor survival rates even after liver resection. METHODS: Therefore, an efficient and sensitive detection method for monitoring liver cancer, multiplex methylation-specific PCR (MSP) coupled with capillary electrophoresis, is developed. RESULTS: Simulations demonstrated that the methylation status of RASSF1A, p16, SFRP1, and ELF could be detected even when DNA equaled or exceeded 12...
March 7, 2018: Journal of Clinical Laboratory Analysis
Heglayne Pereira Vital da Silva, Gustavo Henrique de Medeiros Oliveira, Marcela Abbott Galvão Ururahy, João Felipe Bezerra, Karla Simone Costa de Souza, Raul Hernandes Bortolin, André Ducati Luchessi, Vivian Nogueira Silbiger, Valéria Morgiana Gualberto Duarte Moreira Lima, Gisele Correia Pacheco Leite, Maria Edinilma Felinto Brito, Erlane Marques Ribeiro, Vera Lúcia Gil-da-Silva-Lopes, Adriana Augusto de Rezende
BACKGROUND: Although more than 14 loci may be involved in the development of nonsyndromic cleft lip and palate (NSCLP), the etiology has not been fully elucidated due to genetic and environmental risk factor interactions. Despite advances in identifying genes associated with the NSCLP development using traditional genetic mapping strategies of candidate genes, genome-wide studies, and epidemiologic and linkage analysis, microarray techniques have become important complementary tools in the search for potential causative oral clefts genes in genetic studies...
March 7, 2018: Journal of Clinical Laboratory Analysis
Müjgan Ercan, Esra Fırat Oğuz, Emiş Deniz Akbulut, Mustafa Yilmaz, Turan Turhan
BACKGROUND: Selection and verification of blood collection tubes is an important preanalytical issue in clinical laboratories. Today, gel tubes are commonly used with many advantages, although they are known to cause interference in immunoassay methods. In this study, we aimed to compare SSTs of two different suppliers (Ayset clot activator & Gel and Becton Dickinson (BD) Vacutainer SST II advance) with reference tubes and evaluate the effect of storage time in terms of commonly used endocrine tests such as thyroid-stimulating hormone (TSH), free thyroxine (fT4), and free triiodothyronine (fT3)...
March 7, 2018: Journal of Clinical Laboratory Analysis
Victoria Ortiz de la Tabla, Marta Berruezo, Elena García Payá, Marta Fernández, José Alberto García, Mar Masiá, Félix Gutiérrez
BACKGROUND: Mycoplasma pneumoniae is considered an important etiologic agent of community-acquired pneumonia (CAP) in outpatients. We aimed to evaluate the diagnostic accuracy of a quick automated chemiluminescent immunoassay (CLIA) for M. pneumoniae in a population-based prospective study of CAP. METHODS: A total of 137 outpatients diagnosed with CAP were included in the study. Acute- and convalescent phase sera were analyzed for IgG and IgM to M. pneumoniae with both CLIA (VirClia® ) and ELISA immunoassays...
March 6, 2018: Journal of Clinical Laboratory Analysis
Shivesh Prakash, Shailesh Bihari, Zhan Y Lim, Santosh Verghese, Hemant Kulkarni, Andrew D Bersten
BACKGROUND: We tested the hypothesis that the results of the same test performed on point-of-care blood gas analysis (BGA) machine and automatic analyzer (AA) machine in central laboratory have high degree of concordance in critical care patients and that the two test methods could be used interchangeably. METHODS: We analyzed 9398 matched pairs of BGA and AA results, obtained from 1765 patients. Concentration pairs of the following analytes were assessed: hemoglobin, glucose, sodium, potassium, chloride, and bicarbonate...
March 3, 2018: Journal of Clinical Laboratory Analysis
Shuzhen Wang, Jie Liu, Qiaolian Wang, Jianguo Du, Beibei Wang
BACKGROUND: Single-nucleotide polymorphisms (SNPs) were discovered in HBV-related gestational diabetes mellitus, but it still unclear whether these SNPs are associated with the susceptibility of HBV-related gestational diabetes mellitus. METHODS: The investigation of the association between CDKN2A polymorphisms and occurrence of HBV-related gestational diabetes mellitus (GDM) in Chinese was assessed in the case-control study. A total of 480 pregnant patients with HBV and 530 pregnant controls were consecutively recruited from January 2015 to December 2016...
March 2, 2018: Journal of Clinical Laboratory Analysis
Weijian Luo, Hao Wang, Jiliang Hu
OBJECTIVE: To explore the role of serum periostin in patients with aneurysmal subarachnoid hemorrhage (aSAH). METHOD: We conducted a retrospective study and 124 aSAH patients treated in Shenzhen People's hospital during March 1st 2015 to December 30th 2016 were included. Baseline information, neurological status and clinical outcome were recorded. Blood samples on admission were collected and enzyme linked immunosorbent assay (ELISA) kits were used to detect the serum level of periostin...
March 2, 2018: Journal of Clinical Laboratory Analysis
Nejat Mahdieh, Maryam Hosseini Moghaddam, Mahsa Motavaf, Ahmad Rabbani, Mahdieh Soveizi, Majid Maleki, Bahareh Rabbani, Azin Alizadeh-Asl
BACKGROUND: MYBPC3 mutations have been described in dilated cardiomyopathy (DCM) and hypertrophic cardiomyopathy (HCM). A mutation, c.3373G>A, has been reported to cause autosomal recessive form of HCM. Here, we report that this mutation can cause autosomal dominant form of DCM. METHODS: Next-generation sequencing using targeted panel of a total of 23 candidate genes and following Sanger sequencing was applied to detect causal mutations of DCM. Computational analyses were also performed using available software tools...
March 1, 2018: Journal of Clinical Laboratory Analysis
Azam Sabahi, Leila Ahmadian, Moghademeh Mirzaee
BACKGROUND: Patients can access laboratory results using various technologies. The aim of this study was to integrate the laboratory results into the hospital Web site based on patients' viewpoints and priorities and to measure patients' satisfaction. METHODS: This descriptive-analytical study was conducted in 2015. First, a questionnaire was distributed among 200 patients to assess patients' priorities to receive laboratory results through the Web site. Second, those who agreed (n = 95) to receive their laboratory results through the Web site were identified...
February 28, 2018: Journal of Clinical Laboratory Analysis
Seçil Conkar, Sevgi Mir, Fatma Nur Karaslan, Gülden Hakverdi
BACKGROUND: Glomerular filtration rate (GFR) is the best marker used to assess renal function. Estimated GFR (eGFR) equations have been developed, and the ideal formula is still under discussion. We wanted to find the most practical and reliable GFR in eGFR formulas. We compared serum creatinine (Scr)- and cystatin C (cysC)-based eGFR formulas in the literature. We also aimed to determine the suitability and the reliability of cysC for practical use in determining GFR in children. METHODS: We have enrolled 238 children in the study...
February 27, 2018: Journal of Clinical Laboratory Analysis
Anna Guacci, Angela Cordella, Teresa Rocco, Giorgio Giurato, Giovanni Nassa, Francesca Rizzo, Chiara Carlomagno, Stefano Pepe, Roberta Tarallo, Alessandro Weisz
BACKGROUND: Breast cancer (BC) is the most common neoplasm in women, with 5%-10% patients showing a familial predisposition, where germline mutations in BRCA1/BRCA2 genes are found in -20% of cases. Next-generation sequencing (NGS) is among the best available options for genetic screening, providing several benefits that include enhanced sensitivity and unbiased mutation detection. PALB2 (partner and localizer of BRCA2) is a cancer predisposing gene recently described that encodes a protein partner of BRCA2 involved in DNA double-strand break repair and cell cycle control...
February 27, 2018: Journal of Clinical Laboratory Analysis
Mesude Falay, Mehmet Senes, Dogan Yücel, Turan Turhan, Simten Dagdaş, Melike Pekin, Namik K Nazaroglu, Gülsüm Özet
BACKGROUND: This study is a retrospective evaluation of patients who were subject to mixing study in our laboratory due to prolonged APTT. The preliminary diagnoses, clinical manifestations, and results of additional ordered tests were reviewed. The study aims to investigate whether repeating APTT test with a different assay prior to performing mixed study in patients with prolonged APTT would be a better alternative algorithmic approach in order to save both time and costs. METHODS: We retrospectively evaluated 166 patients (65 females and 101 males) who were subject to mixing study due to isolated prolonged APTT...
February 27, 2018: Journal of Clinical Laboratory Analysis
Hee-Jung Chung, Yoon Kyung Song, Sang-Hyun Hwang, Do Hoon Lee, Tetsuro Sugiura
BACKGROUND: Use of total laboratory automation (TLA) system has expanded to microbiology and hemostasis and upgraded to second and third generations. We herein report the first successful upgrades and fusion of different versions of the TLA system, thus improving laboratory turnaround time (TAT). METHODS: A 21-day schedule was planned from the time of pre-meeting to installation and clinical sample application. We analyzed the monthly TAT in each menu, distribution of the "out of range for acceptable TAT" samples, and "prolonged time out of acceptable TAT," before and after the upgrade and fusion...
February 25, 2018: Journal of Clinical Laboratory Analysis
Yuan-Yuan Qin, Ai-Qiu Wei, Qing-Wen Shan, Xiao-Ying Xian, Yang-Yang Wu, Lin Liao, Jie Yan, Zhan-Feng Lai, Fa-Quan Lin
BACKGROUND: Severe hypertriglyceridemia usually results from a combination of genetic and environmental factors and is most often attributable to mutations in the lipoprotein lipase (LPL) gene. OBJECTIVES: The aim of this study was to identify rare mutations in the LPL gene causing severe hypertriglyceridemia. METHODS: A Chinese infant who presented classical features of severe hypertriglyceridemia recruited for DNA sequencing of the LPL gene...
February 25, 2018: Journal of Clinical Laboratory Analysis
Van Long Nguyen
BACKGROUND: There has been increasing interest in the analysis of phospholipids in red blood cells as potential long-term biomarkers of different disease states. Here, we describe a simple method for the analysis of two phospholipids: 1-Palmitoyl-2-oleoyl-sn-glycero-3-phosphoethanol (PE 16:0/18:1) and 1-Palmitoyl-2-linoleoyl-sn-glycero-3-phosphoethanol (PE 16:/0/18:2) in erythrocytes by liquid chromatography-tandem mass spectrometry (LC-MS/MS). METHODS: Whole blood samples were removed free of plasma and washed in isotonic saline...
February 25, 2018: Journal of Clinical Laboratory Analysis
Adriana Unic, Nora Nikolac Gabaj, Marijana Miler, Jelena Culej, Adrijana Lisac, Anita Horvat, Nada Vrkic
BACKGROUND: Study was performed in order: (i) to assess the comparability of glucose, bilirubin, hemoglobin, leukocyte esterase, and protein; (ii) to assess accuracy of glucose, bilirubin, hemoglobin, leukocyte esterase, and protein; and (iii) to evaluate interference of ascorbic acid on the glucose, bilirubin, hemoglobin, and nitrite determination using 2 different dipsticks: iChem Velocity, Iris Diagnostics and Combur-10M, Roche Diagnostics. METHODS: Random urine specimens were included in the study...
February 25, 2018: Journal of Clinical Laboratory Analysis
Wei Wen, Kun Wang, Zhi-Ming Jiang, Zhong-Hui Zhang, Lei Zhou
BACKGROUND: Multiple organ dysfunction syndromes (MODS) is reported as a leading cause of mortality in intensive care units. Recently, continuous blood purification (CBP) has been mostly applied for MODS treatment. Thus, the purpose of this study was to investigate the effects of CBP on plasma phospholipid level in patients with MODS. METHODS: A total of 126 patients with MODS and 120 healthy people were collected. The serum cytokine levels, blood biochemical parameters, and blood gas indexes were detected, and the correlation among phospholipid compounds with serum cytokine levels, blood biochemical parameters, and blood gas indexes was analyzed...
February 18, 2018: Journal of Clinical Laboratory Analysis
Yingying Wu, Yongbin Zeng, Wennan Wu, Jinpiao Lin, Qishui Ou
BACKGROUND: Host single nucleotide polymorphisms were associated with antiviral therapy in CHB patients. The CYP27B1 gene, encoding 25(OH)D3 -1α hydroxylase, might activate 25(OH)D3 to 1,25(OH)2 D3 in kidney resulted in influencing the efficacy of interferon (IFN). The aim of the study was to investigate the association between CYP27B1 polymorphisms and the response to IFN in HBeAg-positive patients. METHODS: Eighty-seven HBeAg-positive CHB patients infected with HBV genotype B or C were included in the study...
February 18, 2018: Journal of Clinical Laboratory Analysis
Ronaldo Luis Thomasini, Hortencia Gisele Amaro Souza, Oscar Bruna-Romero, Antonio Helvecio Totola, Neiva Sellan Lopes Gonçales, Cristiano Xavier Lima, Mauro Martins Teixeira
BACKGROUND: The most of the hepatitis C-infected patients remain undiagnosed until they develop severe liver damage or submitted for serological screening. OBJECTIVE: To evaluate a recombinant multiepitope protein for detection of IgG anti-hepatitis C virus. METHOD: A synthetic gene was cloned, expressed in Escherichia coli, and the recombinant protein was purified. Human serum panel consisted of 88 positives (20 HCV genotyped) and 376 negatives for hepatitis C, 6 positives for human acquired immunodeficiency virus, 6 syphilis positives, 6 hepatitis B positives were tested by IgG antihepatitis C virus using the protein by enzyme-linked immunosorbent assay...
February 17, 2018: Journal of Clinical Laboratory Analysis
Marika Pikta, Galina Zemtsovskaja, Hector Bautista, Georges Nouadje, Timea Szanto, Margus Viigimaa, Valdas Banys
BACKGROUND: The von Willebrand factor (VWF) multimer test is required to correctly subtype qualitative type 2 von Willebrand disease (VWD). The current VWF multimer assays are difficult, nonstandardized, and time-consuming. The purpose of this study was to evaluate the clinical utility of the commercial VWF multimer kit by Sebia (Lisses, France), an electrophoresis technique yielding same-day results. METHODS: Ten healthy volunteer plasma samples, in-house reference plasma (IRP) and commercial normal plasma (CNP) samples, 10 plasma samples from patients with a known VWD type, 1 hemophilia A plasma sample, and 7 external quality assurance (EQA) samples were analyzed using the commercial VWF multimer kit...
February 17, 2018: Journal of Clinical Laboratory Analysis
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