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Clinica Chimica Acta; International Journal of Clinical Chemistry

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https://www.readbyqxmd.com/read/28327369/plasma-proanp1-98-levels-are-positively-associated-with-central-obesity-a-cross-sectional-study-in-a-general-population-of-china
#1
Zhengbao Zhu, Qiu Zhang, Hao Peng, Chongke Zhong, Yan Liu, Xinfeng Huangfu, Yunfan Tian, Xiangqin Chao, Aili Wang, Jianhua Jin, Yonghong Zhang
BACKGROUND: Atrial natriuretic peptide (ANP) and its prohormone activating enzyme are associated with central obesity, suggesting there may be a potential relationship between proANP1-98 and central obesity. However, the association is still lack of population-based evidence. We explored the association in a general population of China. METHODS: We measured plasma proANP1-98, waist circumference and other traditional biomarkers in 2203 participants aged≥30y. Multivariate logistic regression models were used to determine the association between plasma proANP1-98 and central obesity, and odds ratio (OR) and 95% confidence interval (CI) were calculated...
March 18, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28322729/standardisation-and-use-of-the-alcohol-biomarker-carbohydrate-deficient-transferrin-cdt
#2
Anders Helander, Jos Wielders, Raymond Anton, Torsten Arndt, Vincenza Bianchi, Jean Deenmamode, Jan-Olof Jeppsson, John B Whitfield, Cas Weykamp, François Schellenberg
Carbohydrate-deficient transferrin (CDT) is a glycoform profile of serum transferrin that increases in response to sustained high alcohol intake and over the last decades has become an important alcohol biomarker with clinical and forensic applications. However, the wide range of CDT measurement procedures has resulted in lack of uniform results and reference limits, and hampered comparison of results. In 2005, the IFCC therefore founded a special working group (WG) aiming for standardisation of CDT measurement...
March 18, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28322730/effect-of-systemic-methotrexate-on-lipid-pentad-index-in-psoriasis-and-its-association-with-disease-severity
#3
LETTER
G Revathy, R Usha, Laxmisha Chandrashekar, Nidhi Singh, Nalini Natarajan, Devinder Mohan Thappa, Medha Rajappa
No abstract text is available yet for this article.
March 16, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28315660/the-critical-gap-for-pediatric-reference-intervals-of-complete-blood-count-in-china
#4
Lv Yaqi, Feng Guoshuang, Ni Xin, Song Wenqi, Peng Xiaoxia
BACKGROUND: WE determined pediatric reference intervals in China by validating 3 existing pediatric reference intervals (RIs) of complete blood count (CBC) respectively. METHODS: A total of 2255 healthy children attended physical examination in Beijing Children's Hospital. Fasted blood was sampled and CBC, including red blood cell (RBC) count, hemoglobin (HGB), hematocrit (HCT), platelet count (PLT) and white blood cell (WBC) count were measured by automated hematological analyzer Sysmex Xs-800i...
March 15, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28315659/lessons-learned-with-molecular-methods-targeting-the-bcsp-31-membrane-protein-for-diagnosis-of-human-brucellosis
#5
REVIEW
Rocio Sanjuan-Jimenez, Juan D Colmenero, Pilar Morata
Brucellosis remains an emerging and re-emerging zoonosis worldwide causing high human morbidity. It usually affects persons who are permanently exposed to fastidious microorganisms of the Brucella genus and has a nonspecific clinical picture. Thus, diagnosis of brucellosis can sometimes be difficult. Molecular techniques have recently been found very useful in the diagnosis of brucellosis together with its common and very diverse focal complications. We herein review all the lessons learned by our group concerning the molecular diagnosis of human brucellosis over the last twenty years...
March 15, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28315295/proton-nmr-metabolic-profiling-of-csf-reveals-distinct-differentiation-of-meningitis-from-negative-controls
#6
Tanushri Chatterji, Suruchi Singh, Manodeep Sen, Ajai Kumar Singh, Gaurav Raj Agarwal, Deepak Kumar Singh, Janmejai Kumar Srivastava, Alka Singh, Rajendra Nath Srivastava, Raja Roy
BACKGROUND: Cerebrospinal fluid (CSF) is an essential bio-fluid of the central nervous system (CNS), playing a vital role in the protection of CNS and performing neuronal function regulation. The chemical composition of CSF varies during onset of meningitis, neurodegenerative disorders (positive controls) and in traumatic cases (negative controls). METHODS: The study design was broadly categorized into meningitis cases, negative controls and positive controls. Further differentiation among the three groups was carried out using Principal Component Analysis (PCA) followed by supervised Partial Least Square Discriminant Analysis (PLS-DA)...
March 14, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28302384/the-bridging-integrator-1-gene-rs7561528-polymorphism-contributes-to-alzheimer-s-disease-susceptibility-in-east-asian-and-caucasian-populations
#7
REVIEW
Zhou Futao, Dong Haina
Genetic variants of the bridging integrator 1 (BIN1) at the rs7561528 single nucleotide polymorphism were implicated in increased risk of Alzheimer's disease in several case-control association studies. However, the studies have reported apparently conflicting results. Here, we searched the PubMed and Google Scholar databases. In total, 17,179 AD patients and 17,448 healthy controls (HCs) from 18 studies are included in the current study to examine the association between this polymorphism and AD risk. Significant associations of the SNP rs242557 with AD are found under allelic [A vs...
March 13, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28300541/a-negative-lactate-dehydrogenase-activity-corrected-after-sample-neuraminidase-treatment
#8
LETTER
Matthijs Oyaert, Tom Van Maerken, Evelien Bauwens, Veronique Stove, Joris Delanghe
No abstract text is available yet for this article.
March 12, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28300542/elevated-insulin-and-reduced-insulin-like-growth-factor-binding-protein-3-prostate-specific-antigen-ratio-with-increase-in-prostate-size-in-benign-prostatic-hyperplasia
#9
Karli Sreenivasulu, Hanumanthappa Nandeesha, Lalgudi Narayanan Dorairajan, Medha Rajappa, Vickneshwar Vinayagam
BACKGROUND: Insulin and insulin like growth factor-1 (IGF-1) have growth promoting effects, while insulin like growth factor binding protein-3 (IGFBP-3) has growth inhibitory effects. The present study was designed to assess the concentrations of insulin, IGF-1, IGFBP-3 and their association with prostate size in patients with BPH. METHODS: Ninety 90 BPH cases and 90 controls were enrolled in the study. Insulin, IGF-1, IGFBP-3, PSA, testosterone and estradiol were estimated in both the groups...
March 11, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28288785/accuracy-based-proficiency-testing-for-testosterone-measurements-with-immunoassays-and-liquid-chromatography-mass-spectrometry
#10
Zhimin Tim Cao, Julianne Cook Botelho, Robert Rej, Hubert Vesper
BACKGROUND: Accurate testosterone measurements are needed to correctly diagnose and treat patients. Proficiency Testing (PT) programs using modified specimens for testing can be limited because of matrix effects and usage of non-reference measurement procedure (RMP)-defined targets for evaluation. Accuracy-based PT can overcome such limitations, however, there is lack of information on accuracy-based PT and feasibility of its implementation in evaluation for testosterone measurements...
March 10, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28288784/development-and-validation-of-a-measurement-procedure-based-on-ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry-for-simultaneous-measurement-of-%C3%AE-lactam-antibiotic-concentration-in-human-plasma
#11
Raül Rigo-Bonnin, Alba Ribera, Ariadna Arbiol-Roca, Sara Cobo-Sacristán, Ariadna Padullés, Òscar Murillo, Evelyn Shaw, Rosa Granada, Xosé L Pérez-Fernández, Fe Tubau, Pedro Alía
BACKGROUND: The administration of β-lactam antibiotics in continuous infusion could let optimize the pharmacokinetic/pharmacodynamic parameters, especially in the treatment of serious bacterial infections. In this context, and also due to variability in their plasmatic concentrations, therapeutic drug monitoring (TDM) may be useful to optimize dosing and, therefore, be useful for the clinicians. MATERIAL AND METHODS: We developed and validated a measurement procedure based on ultra-high performance liquid chromatography-tandem mass spectrometry for simultaneous measurement of amoxicillin, ampicillin, cloxacillin, piperacillin, cefepime, ceftazidime, cefuroxime, aztreonam and meropenem concentrations in plasma...
March 10, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28284085/detection-of-turner-syndrome-using-x-chromosome-inactivation-specific-differentially-methylated-cpg-sites-a-pilot-study
#12
Qiang Zhang, Xiaohong Guo, Tian Tian, Teng Wang, Qiaoli Li, Lei Wang, Yun Liu, Qinghe Xing, Lin He, Xinzhi Zhao
BACKGROUND: Early diagnosis of Turner syndrome (TS) may improve preventive measures and treatment. X-chromosome inactivation specific differentially methylated CpG sites (XIDMSs) that are high methylated in inactive X chromosomes (Xi) and unmethylated in active X chromosomes (Xa) may be potential makers for TS detection. METHODS: The candidate XIDMSs were screened from 9 male and 12 female DNA samples with normal karyotypes using the Illumina 450k array and validated by bisulfite sequencing PCR and pyrosequencing assay...
March 8, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28283440/a-meld-based-nomogram-for-predicting-3-month-mortality-of-patients-with-acute-on-chronic-hepatitis-b-liver-failure
#13
Rui-Cong Chen, Xiao-Dong Wang, Jin-Zhong Dong, Zhuo Lin, Jian-Min Wu, Yi-Jing Cai, Ke-Qing Shi
BACKGROUND: Acute-on-chronic hepatitis B liver failure (ACHBLF) is associated with poor short-term prognosis. The aim of the present study was to construct and validate a model for end-stage liver disease (MELD)-based nomogram for the 3-month mortality estimation for patients with ACHBLF. METHODS: A total of 551 patients with ACHBLF were prospectively enrolled from 2 independent medical centers and divided into 2 cohorts of training and validation, respectively...
March 7, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28283439/interleukin-6-analysis-of-572-consecutive-csf-samples-from-neurological-disorders-a-special-focus-on-neuromyelitis-optica
#14
Akiyuki Uzawa, Masahiro Mori, Hiroki Masuda, Ryohei Ohtani, Tomohiko Uchida, Setsu Sawai, Satoshi Kuwabara
BACKGROUND: Increases of cerebrospinal fluid (CSF) interleukin (IL)-6 has been reported in various neurological disorders but has never been systematically analyzed. We compared the CSF IL-6 concentrations among various neurological disorders and to evaluate the significance of CSF IL-6 measurements for the diagnosis of neuromyelitis optica (NMO). METHODS: We retrospectively investigated the IL-6 concentrations of 572 consecutive CSF samples in patients with various neurological disorders...
March 7, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28283438/exome-sequencing-identified-a-novel-smad2-mutation-in-a-chinese-family-with-early-onset-aortic-aneurysms
#15
Wenwen Zhang, Qingfu Zeng, Yingqi Xu, Houqun Ying, Wei Zhou, Qing Cao, Weimin Zhou
Aortic aneurysm remains a devastating disease due to its fatal complications, such as aortic dissection and rupture. A subset of aortic aneurysm is caused by genetic defect and to date more than a dozen of disease-causing genes have been discovered to account for the disease. In this study, by using whole exome sequencing, we identified a novel heterozygous missense mutation (c.833C>T, p.A278V) in the SMAD2 gene in a family with early onset aortic aneurysms. The mutation segregated in this family, was high conserved among species and predicted to be pathogenic by multiple in silico programs...
March 7, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28274611/matrix-effect-corrected-liquid-chromatography-tandem-mass-spectrometric-method-for-determining-acylcarnitines-in-human-urine
#16
Kazuki Abe, Hiroyuki Suzuki, Masamitsu Maekawa, Miki Shimada, Hiroaki Yamaguchi, Nariyasu Mano
Administration of pivalate-containing antibiotics decreases serum carnitine and increases urinary pivaloylcarnitine, resulting in hypocarnitinemia. Carnitine and acylcarnitines are important biomarkers in the diagnosis of carnitine deficiency, but the relationship between acylcarnitines and drug-induced hypocarnitinemia remains unclear. Quantification of acylcarnitines enables discovery of new biomarkers for prediction and diagnosis of drug-induced hypocarnitinemia. Here we describe a liquid chromatography/tandem mass-spectrometric method for simultaneously quantifying carnitine, 15 acylcarnitines, and cefditoren (the pivoxilated product of an antibiotic prodrug) in human urine...
March 6, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28263738/long-noncoding-rna-ccat2-can-predict-metastasis-and-a-poor-prognosis-a-meta-analysis
#17
REVIEW
Xuan Jing, Hongping Liang, Xiangrong Cui, Chongyang Han, Chonghua Hao, Kai Huo
BACKGROUND: Colon cancer associated transcript 2 (CCAT2), a novel long non-coding RNA (lncRNA), plays a key role in tumorigenesis. This meta-analysis systematically summarizes the relationship between CCAT2 and cancers. METHODS: A comprehensive, computerized literature search was conducted in PubMed, Cochrane library, Chinese National Knowledge Infrastructure, and Chinese Wan Fang database. Odds ratios (ORs), hazard ratios (HRs) and their 95% confidence interval (95% CI) were calculated to assess the effect size...
March 3, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28263737/simple-dilute-and-shoot-method-for-urinary-vanillylmandelic-acid-and-homovanillic-acid-by-liquid-chromatography-tandem-mass-spectrometry
#18
Zlatuse D Clark, Jeaneah M Cutler, Igor Y Pavlov, Frederick G Strathmann, Elizabeth L Frank
BACKGROUND: Neuroblastomas are pediatric tumors characterized by overproduction of catecholamines. The catecholamine metabolites, vanillylmandelic acid (VMA) and homovanillic acid (HVA), are used in clinical evaluation of neuroblastoma. Tandem mass spectrometry (LC-MS/MS) is an effective analytical method for measurement of VMA and HVA in urine. METHODS: Dilute-and-shoot sample preparation was performed in a 96-well format using a liquid handler. Chromatographic separation was achieved using a reverse phase column; detection was accomplished by triple quadrupole mass spectrometry with electrospray ionization in positive mode...
March 3, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28263736/isotope-dilution-turboflow-lc-ms-ms-method-for-simultaneous-quantification-of-ten-steroid-metabolites-in-serum
#19
Tue Søeborg, Hanne Frederiksen, Trine Holm Johannsen, Anna-Maria Andersson, Anders Juul
An isotope-dilution TurboFlow-LC-MS/MS method for simultaneous quantification of the ten steroid metabolites dehydroepiandrosterone sulfate (DHEAS), progesterone, 17α-hydroxyprogesterone (17-OHP), Δ4-androstenedione (Adione), corticosterone, 11-deoxycortisol, cortisol, cortisone, testosterone (T), and estrone 3-sulfate (E1-S) in serum was developed and validated. Limits of quantification, variability (inter- and intra-day), analytical range and linearity were all found to be acceptable for clinical use. Furthermore, sample stability was evaluated including the influence of freeze-thaw cycles and the effects of temperature and storage time...
March 2, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28259644/association-of-serum-25-hydroxyvitamin-d3-with-adipokines-and-inflammatory-marker-in-persons-with-prediabetes-mellitus
#20
Meilin Zhang, Yuxia Gao, Liqiang Tian, Li Zheng, Xuan Wang, Weiqiao Liu, Yuwen Zhang, Guowei Huang
BACKGROUND: The association of vitamin D status and inflammation prediabetes mellitus (PreDM) individuals has not been investigated. We investigated the association of serum 25-hydroxyvitamin D3 (25(OH) D3) with adipokines and inflammatory markers in persons with PreDM. METHODS: In this cross-sectional study, we stratified 418 nondiabetic subjects as having PreDM or normal fasting glucose (NFG), and divided PreDM or NFG subjects into vitamin D sufficient, vitamin D insufficient and vitamin D deficient subgroups...
March 1, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
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