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Journal of Clinical Laboratory Analysis

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https://www.readbyqxmd.com/read/28332727/protective-bcl11a-and-hbs1l-myb-polymorphisms-in-a-cohort-of-102-congolese-patients-suffering-from-sickle-cell-anemia
#1
Tite Minga Mikobi, Prosper Tshilobo Lukusa, Michel Ntetani Aloni, Aimé Zola Lumaka, Didine Kinkodi Kaba, Koenraad Devriendt, Gert Matthijs, Jean Marie Mbuyi Muamba, Valérie Race
BACKGROUND: We aimed to investigate the distribution of selected BCL11A and HMIP polymorphisms (SNP's), and to assess the correlation with HPFH in a cohort of sickle cell patients. METHODS: A preliminary cross-sectional study was conducted in 102 patients. Group 1 was composed of patients with HPFH and Group 2 consisted of patients without HbF. We assessed 8 SNPs previously associated with HPFH in cohorts genetically close to the Congolese population. Observed frequencies were compared to expected frequencies...
March 23, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28332725/comparison-of-commercial-methods-of-immunoblot-elisa-and%C3%A2-chemiluminescent-immunoassay-for-detecting-type-specific-herpes-simplex-viruses-1-and-2-igg
#2
Fernando de Ory, María-Eulalia Guisasola, Pilar Balfagón, Juan Carlos Sanz
BACKGROUND: Serology for type-specific herpes simplex virus (HSV) is based on the use of the respective glycoprotein G (gG). METHODS: Chemiluminescent immunoassay (CLIA; BIO-FLASH(®) , Biokit, Spain), ELISA (HerpeSelect(®) , Focus, USA), and immunoblot (IB; Virotech, Germany) for detecting HSV-1- and HSV-2-specific IgG were compared using 384 serum samples received for HSV serology. The samples were classified as positive or negative according to a consensus criterion...
March 23, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28317171/combination-of-change-in-hematological-parameters-with-exercise-stress-test-to-predict-coronary-artery-disease
#3
Ahmet Korkmaz, Abdulkadir Yıldız, Pınar Türker Duyuler, Serkan Duyuler, Samet Yılmaz, Funda Basyigit, Ozgul Ucar Elalmis, Umit Guray, Mehmet Ileri
OBJECTIVE: Treadmill exercise stress testing for identifying patients with a higher likelihood of coronary artery disease (CAD) before elective coronary angiography is recommended in the current guidelines. In this study, we aimed to evaluate the changes in the hematological parameters before and after exercise stress test in relation with the presence of CAD. METHODS: A total of 113 patients with chest pain who underwent treadmill exercise testing and coronary angiography were included in this study...
March 20, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28317169/molecular-characteristics-of-ofloxacin-mono-resistant-mycobacterium-tuberculosis-isolates-from-new-and-previously-treated-tuberculosis-patients
#4
Zhirui Wang, Tong Xie, Cheng Mu, Chunhua Wang, Hanfang Ju, Hui Zhao, Rui Sun
BACKGROUND: Ofloxacin (OFX) resistant Mycobacterium tuberculosis (MTB) isolates have been increasingly observed and are a major concern in recent years. This study investigated the genetic mutations associated with OFX resistance among clinical OFX mono-resistant MTB isolates from new and previously treated tuberculosis patients. METHODS: A total of 50 unrelated OFX mono-resistant MTB isolates were analyzed. For all isolates, the quinolone resistance determining regions of gyrA and gyrB were PCR amplified and sequenced...
March 20, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28303662/mean-platelets-volume-and-neutrophil-to-lymphocyte-ratio-as-predictors-of-stroke
#5
Raymond Farah, Nava Samra
BACKGROUND: Mean platelets volume (MPV) is a marker, which indicates platelet function, and is a potential link between inflammation and thrombosis. Previous studies have found a relation between high MPV levels and high risk of stroke. Another factor that has been associated with the risk of stroke is neutrophil to lymphocyte ratio (NLR). Several studies have reported an association between increased NLR and increased risk of cerebrovascular disease. It was found that NLR levels have a relation to the prognosis as well...
March 17, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28303609/pathological-analysis-of-children-with-childhood-central-nervous-system-infection-based-on-changes-in-chemokines-and-interleukin-17-family-cytokines-in-cerebrospinal-fluid
#6
Shinichiro Morichi, Tomomi Urabe, Natsumi Morishita, Mika Takeshita, Yu Ishida, Shingo Oana, Gaku Yamanaka, Yasuyo Kashiwagi, Hisashi Kawashima
BACKGROUND: In this study, the pathologies of acute meningitis and encephalopathy were investigated, and biomarkers useful as prognostic indices were searched for. METHODS: The subjects were 31 children with meningitis, 30 with encephalopathy, and 12 with convulsions following gastroenteritis. Control group consisted of 24 children with non-central nervous system infection. Cerebrospinal fluid cytokine analysis was performed. RESULTS: Chemokines significantly increased in the bacterial meningitis group compared with those in viral meningitis and encephalopathy groups...
March 17, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28303602/agreement-between-an-in-house-replication-competent-and-a-reference-replication-defective-recombinant-virus-assay-for-measuring-phenotypic-resistance-to-hiv-1-protease-reverse-transcriptase-and-integrase-inhibitors
#7
Francesco Saladini, Alessia Giannini, Adele Boccuto, Ilaria Vicenti, Maurizio Zazzi
BACKGROUND: Although clinical management of drug resistance is routinely based on genotypic methods, phenotypic assays remain necessary for the characterization of novel HIV-1 inhibitors, particularly against common drug-resistant variants. We describe the development and assessment of the performance of a recombinant virus assay for measuring HIV-1 susceptibility to protease (PR), reverse transcriptase (RT), and integrase (IN) inhibitors. METHODS: The system is based on the creation of replication-competent chimeric viruses through homologous recombination between patient or laboratory virus-derived PCR fragments and the corresponding NL4-3 vector where the whole Gag-PR, RT-RNaseH or IN coding regions has been deleted through inverse PCR...
March 17, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28303600/the-study-of-biochemical-profile-of-cyst-fluid-and-diffusion-weighted-magnetic-resonance-imaging-in-differentiating-hepatic-hydatid-cysts-from-liver-simple-cysts
#8
Wang Shanshan, Li Hui, Liu Yan, Wang Li, Ren Yongfang, Wang Yan, Muhetarjiang Kader, Jia Wenxiao
PURPOSE: The aim of this study was to investigate the value of biochemical profile of cyst fluid and diffusion-weighted imaging (DWI) in differentiating hepatic hydatid cysts (HCs) from liver simple cysts. MATERIALS AND METHODS: Forty-six patients underwent MR imaging. Twenty-nine patients had 29 hydatid cysts and 17 patients had liver simple cysts. Thirteen patients with hydatid cysts and seven patients with liver simple cysts were evaluated with cyst fluid biochemical analysis...
March 17, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28301057/the-correlation-between-lin28b-gene-potentially-functional-variants-and-wilms-tumor-susceptibility-in-chinese-children
#9
Wen Fu, Guo-Chang Liu, Zhang Zhao, Jinhong Zhu, Wei Jia, Shi-Bo Zhu, Jin-Hua Hu, Feng-Hua Wang, Jing He, Huimin Xia
BACKGROUND: Wilms tumor (WT) is the most common urologic cancer in children. However, genetic bases underlying WT remain largely unknown. Previous studies indicated that Lin28 homolog B (LIN28B) level is significantly elevated in some WTs. Enforced expression of Lin28b during kidney development could induce WT. Genetic variations in the LIN28B gene may be related to WT susceptibility. METHOD: In this study, we aimed to assess the association between LIN28B gene polymorphisms and WT susceptibility in Chinese children...
March 16, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28295634/the-utility-of-salivary-testosterone-and-cortisol-concentration-measures-for-assessing-the-stress-responses-of-junior-athletes-during-a-sporting-competition
#10
Blair T Crewther, Zbigniew Obmiński, Joanna Orysiak, Emad A S Al-Dujaili
BACKGROUND: This study examined the utility of salivary testosterone (T) and cortisol (C) concentration measures for assessing the acute stress responses of junior athletes during a sporting competition. METHODS: Paired capillary blood and saliva samples were taken from 71 junior athletes (45 males, 26 females) before and after a simulated Olympic weightlifting competition. The concentration measures of salivary T and C were referenced against blood total T (TT) and C (TC) concentrations...
March 13, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28295609/serum-galectin-3-level-as-a-marker-of-thrombogenicity-in-atrial-fibrillation
#11
Duygu Kocyigit, Kadri Murat Gurses, Muhammed Ulvi Yalcin, Hande Canpinar, Ugur Canpolat, Banu Evranos, Hikmet Yorgun, Necla Ozer, Dicle Guc, Kudret Aytemir
BACKGROUND: Left atrial appendage flow velocity (LAAFV) and presence of spontaneous echo contrast (SEC) have been reported to be predictors of thromboembolism in atrial fibrillation (AF) patients. Galectin-3 is a biomarker reflecting pro-inflammatory status, whose role in AF has recently drawn attention, particularly in persistent AF population. AIM: In this study we aimed to investigate the association between serum galectin-3 levels and echocardiographic predictors of thromboembolism in persistent AF patients...
March 13, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28295603/rapid-abo-genotyping-by-high-speed-droplet-allele-specific-pcr-using-crude-samples
#12
Chiaki Taira, Kazuyuki Matsuda, Naoya Takeichi, Satomi Furukawa, Mitsutoshi Sugano, Takeshi Uehara, Nobuo Okumura, Takayuki Honda
BACKGROUND: ABO genotyping has common tools for personal identification of forensic and transplantation field. We developed a new method based on a droplet allele-specific PCR (droplet-AS-PCR) that enabled rapid PCR amplification. We attempted rapid ABO genotyping using crude DNA isolated from dried blood and buccal cells. METHODS: We designed allele-specific primers for three SNPs (at nucleotides 261, 526, and 803) in exons 6 and 7 of the ABO gene. We pretreated dried blood and buccal cells with proteinase K, and obtained crude DNAs without DNA purification...
March 13, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28294412/association-of-758-g-a-polymorphism-of-3-untranslated-region-of-prohibitin-with-risk-of-gastric-cancer
#13
Fenfen Xiang, Zhenhua Ni, Yueping Zhan, Jian Xu, Rong Wu, Xiangdong Kang
BACKGROUND: A polymorphic variant allele (T-allele) in the 3'-UTR of prohibitin (C-to-T at nucleotide 729) was reported to be associated with an increased risk of breast cancer. However, the association between the 3'-UTR polymorphism of prohibitin and the susceptibility to gastric cancer remains unknown. Thus, we investigated the distribution of prohibitin genotypes in Chinese patients with gastric cancer and subsequently analyzed the association between the 3'-UTR polymorphism of prohibitin and the risk of gastric cancer in that population...
March 13, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28276605/influence-of-oral-contraceptives-on-lipid-profile-and-paraoxonase-and-commonly-hepatic-enzymes-activities
#14
Katarzyna Kowalska, Milena Ściskalska, Anna Bizoń, Mariola Śliwińska-Mossoń, Halina Milnerowicz
BACKGROUND: The aim of the study was to verify the influence of oral contraceptives (OCs) on lipid profile and the arylesterase, lactonase and phosphotriesterase activities of paraoxonase 1 (PON1). Also commonly hepatic enzymes: aspartate aminotransferase (AST), alanine aminotransferase (ALT) and γ-glutamyltranspherase (GGT) were measured. METHODS: Lipid profile and hepatic enzymes were determined using commercial available reagents. Paraoxonase activities were estimated using earlier published procedures...
March 9, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28276604/one-step-immunochromatographic-visual-assay-for-anti-transglutaminase-detection-in-organ-culture-system-an-easy-and-prompt-method-to-simplify-the-in-vitro-diagnosis-of-celiac-disease
#15
Marco Di Tola, Mariacatia Marino, Rossella Casale, Raffaele Borghini, Antonio Tiberti, Giuseppe Donato, Umberto Occhiuzzi, Antonio Picarelli
BACKGROUND: Anti-tissue transglutaminase (anti-tTG) and endomysium antibodies (EMA) are detectable in duodenal culture media of celiac disease (CD) patients. To improve the management of this organ culture system, we evaluated the anti-tTG occurrence by immunochromatographic assay (ICA). METHODS: A total of 103 CD patients and 41 disease controls underwent duodenal biopsy for the organ culture. In culture supernatants, IgA anti-tTG were tested by both enzyme-linked immunosorbent assay (ELISA) and ICA, IgA EMA were searched by indirect immunofluorescence analysis (iIFA)...
March 9, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28276595/a-genetic-variant-in-cdkn2a-b-gene-is-associated-with-the-increased-risk-of-breast-cancer
#16
Soodabeh ShahidSales, Mehraneh Mehramiz, Faezeh Ghasemi, Amir Aledavood, Mehri Shamsi, Seyed Mahdi Hassanian, Majid Ghayour-Mobarhan, Amir Avan
BACKGROUND: Breast cancer is among the leading cause of cancer-related-deaths in women, supporting the need for the identification of novel prognostic and predictive biomarkers. Recent studies have identified common genetic variants in a region on chromosome 9p21 associated with an increased risk of developing different cancers. Here, we explored the association of a genetic variant in CDKN2A/B, rs10811661, for the first time in 564 subjects with/without breast cancer. METHOD: Genotyping was performed using TaqMan real time PCR method...
March 9, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28276593/association-between-sickle-cell-anemia-and-alpha-thalassemia-reveals-a-high-prevalence-of-the-%C3%AE-3-7-triplication-in-congolese-patients-than-in-worldwide-series
#17
Tite Minga Mikobi, Prosper Tshilobo Lukusa, Michel Ntetani Aloni, Aimé Lumaka, Pierre Zalagile Akilimali, Koenraad Devriendt, Gert Matthijs, Jean-Marie Mbuyi Muamba, Valerie Race
BACKGROUND: Information about the association with alpha thalassemia in sickle cell patients is unknown in the Democratic Republic of Congo. There is very little data on the alpha thalassemia in patients suffering from sickle cell anemia in Central Africa, and their consequences on the clinical expression of the disease. METHODS: A cross-sectional study was conducted in 106 sickle cell patients living in the country's capital Kinshasa. The diagnosis of sickle cell anemia was confirmed with a molecular test using PCR-RFLP (restriction fragment length polymorphism) technique...
March 9, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28247935/prognostic-significance-of-long-noncoding-rna-z38-as-a-candidate-biomarker-in-breast-cancer
#18
Zhen-Lin Nie, Yi-Shan Wang, Yan-Ping Mei, Xin Lin, Guo-Xing Zhang, Hui-Ling Sun, Yi-Lian Wang, Yong-Xiang Xia, Shu-Kui Wang
BACKGROUND: Long noncoding RNA (lncRNA) Z38 has been shown to promote cell proliferation and tumorigenesis in breast cancer. However, expression pattern and prognostic value of lncRNA Z38 in breast cancer patients remain elusive. METHODS: The expression levels of SPRY4-IT1 in 110 self-paired specimens of breast cancer and adjacent normal breast tissues were measured by quantitative real-time PCR (qRT-PCR), and its correlation with overall survival of patients with breast cancer was further statistically analyzed...
March 1, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28244614/iron-deficiency-anemia-interfering-the-diagnosis-of-compound-heterozygosity-for-hb-constant-spring-and-hb-paks%C3%A3-the-first-case-report
#19
Thita Chiasakul, Noppacharn Uaprasert
BACKGROUND: Diagnosis of thalassemia or hemoglobinopathy concomitant with iron deficiency anemia (IDA) is challenging. METHOD: We report a case of 43-year-old female whose diagnosis of compound heterozygosity for hemoglobin Constant Spring (HbCS) and Hb Paksé became apparent after the treatment of IDA. RESULTS: Prior to treatment, Hb analysis using isoelectric focusing (IEF) showed HbA 95.6%, HbA2 2.7%, and HbCS 1.7% compatible with heterozygous HbCS...
February 28, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28238215/pretreatment-platelet-to-lymphocyte-ratio-is-associated-with-the-response-to-first-line-chemotherapy-and-survival-in-patients-with-metastatic-gastric-cancer
#20
Jin Wang, Jinglei Qu, Zhi Li, Xiaofang Che, Jing Liu, Yuee Teng, Bo Jin, Mingfang Zhao, Yunpeng Liu, Xiujuan Qu
BACKGROUND: Several studies have shown that platelet-to-lymphocyte ratio (PLR) is a prognostic factor for various cancers. However, there is no study about the role of PLR in predicting response to first-line chemotherapy of metastatic gastric cancer. Therefore, this study aimed to establish whether PLR is associated with the response to first-line chemotherapy and survival in patients with metastatic gastric cancer. METHODS: We enrolled 273 patients diagnosed with metastatic gastric cancer...
February 26, 2017: Journal of Clinical Laboratory Analysis
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