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HbA1c assays

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https://www.readbyqxmd.com/read/28422968/the-impact-of-a-point-of-care-testing-device-on-cvd-risk-assessment-completion-in-new-zealand-primary-care-practice-a-cluster-randomised-controlled-trial-and-qualitative-investigation
#1
RANDOMIZED CONTROLLED TRIAL
Sue Wells, Natasha Rafter, Timothy Kenealy, Geoff Herd, Kyle Eggleton, Rose Lightfoot, Kim Arcus, Angela Wadham, Yannan Jiang, Chris Bullen
OBJECTIVES: To assess the effect of a point of care (POC) device for testing lipids and HbA1c in addition to testing by community laboratory facilities (usual practice) on the completion of cardiovascular disease (CVD) risk assessments in general practice. METHODS: We conducted a pragmatic, cluster randomised controlled trial in 20 New Zealand general practices stratified by size and rurality and randomised to POC device plus usual practice or usual practice alone (controls)...
2017: PloS One
https://www.readbyqxmd.com/read/28415730/a-polymorphism-at-igf1-locus-is-associated-with-anemia
#2
Maria Adelaide Marini, Gaia Chiara Mannino, Teresa Vanessa Fiorentino, Francesco Andreozzi, Francesco Perticone, Giorgio Sesti
In vitro and in vivo studies suggest that IGF-1 has a role in erythropoiesis. There is evidence that the rs35767 C/T polymorphism near IGF1 is associated with plasma IGF-1 levels. We investigated the effect of this polymorphism on hemoglobin (Hb) concentration and anemia. The study group comprised 3286 adult Whites. The rs35767 polymorphism was screened using a TaqMan allelic discrimination assay. The rs35767 polymorphism was not associated with age, gender, BMI, waist circumference, smoking, blood pressure, plasma glucose, HbA1c, type 2 diabetes, HOMA-IR, hsCRP, eGFR, and lipid profile...
March 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28413419/role-of-vitamin-d-on-glycemic-control-and-oxidative-stress-in-type-2-diabetes-mellitus
#3
Mostafa Saif-Elnasr, Iman M Ibrahim, Manal M Alkady
BACKGROUND: Vitamin D deficiency may play a key role in the development of impaired glucose tolerance, type 2 diabetes mellitus (T2DM), and metabolic syndrome. Several studies have shown that Vitamin D has an antioxidant property. We aimed to investigate 25-hydroxy Vitamin D (25[OH]D) levels in patients with T2DM and in nondiabetic healthy controls and to ascertain the impact of 25(OH)D levels on glycemic control and oxidative stress in T2DM patients. MATERIALS AND METHODS: Thirty male patients with T2DM and twenty age- and socioeconomic status-matched male healthy controls were included in the study...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28410925/circulating-osteocalcin-is-unrelated-to-glucose-homoeostasis-in-adults-with-type-1-diabetes
#4
Bu B Yeap, Wendy A Davis, Kirsten Peters, Emma J Hamilton, Valentina Rakic, Stephen A Paul Chubb, Timothy M E Davis
AIMS: To assess the relationship between total osteocalcin (tOC), undercarboxylated osteocalcin (ucOC) and a range of markers of glucose homeostasis in type 1 diabetes. METHODS: One hundred and eight community-based Caucasian adults (53 males, 55 females) without a history of osteoporosis and with a mean±SD age 39.1±15.1years and median [inter-quartile range] type 1 diabetes duration of 14.3 [6.6-20.4] years participated in a cross-sectional study of bone health...
April 4, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28407371/effects-of-hemoglobin-variants-hbj-bangkok-hbe-hbg-taipei-and-hbh-on-analysis-of-glycated-hemoglobin-via-ion-exchange-high-performance-liquid-chromatography
#5
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
https://www.readbyqxmd.com/read/28406728/clinical-evaluation-of-a-polyherbal-nutritional-supplement-in-dyslipidemic-volunteers
#6
Subramanian Suganya, Subapriya Natarajan, Duraipandian Chamundeeswari, Anand Anbarasu, Kunissery A Balasubramanian, Lynn C Schneider, Balaji Nandagopal
Ten important plant parts routinely used in South Indian ethnic food preparation as spices and condiments were investigated for their potential antidyslipidemic properties. The aim of the study was to characterize the biochemical properties of the polyherbal formulation (nutritional supplement) and evaluate its use to control dyslipidemia in patients. Phytochemical evaluation, in vitro α-amylase inhibitory assay, and high performance thin layer chromatography (HPTLC) fingerprinting were carried out with alcoholic extracts of all 10 individual plants and with the nutritional supplement...
April 13, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28401620/atp4a-autoimmunity-in-pediatric-patients-with-type-1-diabetes-and-its-relationship-to-blood-count-iron-metabolism-and-vitamin-b12
#7
Agata Chobot, Ewa Rusak, Janet Wenzlau, Howard Davidson, Piotr Adamczyk, Agnieszka Krzywicka, Bogdan Mazur, Joanna Polańska, Marian Rewers
OBJECTIVE: We aimed to assess the prevalence of autoantibodies against the 4A subunit of the gastric proton pump (ATP4A) in pediatric type 1 diabetes (T1D) patients and explore the relationship between ATP4A positivity and blood cell count, iron turnover, and vitamin B12 concentration. SUBJECTS: The study included 94 (59% female) T1D children (aged 12.5 ± 4.1 years, T1D duration 4.2 ± 3.6 years, HbA1c 7.3 ± 1.5% (57 ± 12.6 mmol/mol) with no other autoimmune diseases...
April 12, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28387422/validation-and-determination-of-a-reference-interval-for-canine-hba1c-using-an-immunoturbidimetric-assay
#8
Anne F Goemans, Susanna J Spence, Ian K Ramsey
BACKGROUND: Hemoglobin A1c (HbA1c) provides a reliable measure of glycemic control over 2-3 months in human diabetes mellitus. In dogs, presence of HbA1c has been demonstrated, but there are no validated commercial assays. OBJECTIVE: The purpose of the study was to validate a commercially available automated immunoturbidimetric assay for canine HbA1c and determine an RI in a hospital population. METHODS: The specificity of the assay was assessed by inducing glycosylation in vitro using isolated canine hemoglobin, repeatability by measuring canine samples 5 times in succession, long term inter-assay imprecision by measuring supplied control materials, stability using samples stored at 4°C over 5 days and -20°C over 8 weeks, linearity by mixing samples of known HbA1c in differing proportions, and the effect of anticoagulants with paired samples...
April 7, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28382439/plasma-level-of-mir-93-is-associated-with-higher-risk-to-develop-type-2-diabetic-retinopathy
#9
Hui-Ling Zou, Yan Wang, Qiang Gang, Ying Zhang, Yu Sun
PURPOSE: MicroRNA-93 (miR-93) usually acts as a promoter of tumor progression in several human carcinomas. It has been found distinctly high in eyes with proliferative diabetic retinopathy (DR). The present study aims to investigate the role of plasma miR-93 in the progression of type 2 diabetic retinopathy (T2DR). METHODS: Our study subjects were made up of 140 type 2 diabetes mellitus (T2DM) patients who were assigned into DR (DR patients, n = 75), NDR (non-DR patients, n = 65), and control (healthy individuals, n = 127) groups...
April 5, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28365449/multicenter-evaluation-of-an-enzymatic-method-for-glycated-albumin
#10
Renata Paleari, Graziella Bonetti, Cinzia Callà, Mariarosa Carta, Ferruccio Ceriotti, Nicola Di Gaetano, Marilisa Ferri, Elena Guerra, Gabriella Lavalle, Claudia Lo Cascio, Francesca Gabriela Martino, Martina Montagnana, Marco Moretti, Gabriele Santini, Donata Scribano, Roberto Testa, Anna Vero, Andrea Mosca
BACKGROUND: The use of glycated albumin (GA) has been proposed as an additional glycemic control marker particularly useful in intermediate-term monitoring and in situation when HbA1c test is not reliable. METHODS: We have performed the first multicenter evaluation of the analytical performance of the enzymatic method quantILab Glycated Albumin assay implemented on the most widely used clinical chemistry analyzers (i.e. Abbott Architect C8000, Beckman Coulter AU 480 and 680, Roche Cobas C6000, Siemens ADVIA 2400 and 2400 XPT)...
March 29, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28326795/digital-health-care-by-in-silico-glycation-of-hba1-blood-cells
#11
James M Minor, Leslie M Rickey, Richard M Bergenstal
BACKGROUND: Diabetes health care relies on the HbA1c (A1c) assay and associated average glucose (AG) to evaluate and control chronic glycemia. However, the A1c assay is plagued with significant noise, lag time, and specificity issues. Current studies support the significant health care advantage of clinical action based on real-time blood glucose (BG) metrics. We seek to improve diabetes management by directly relating such metrics to AG levels as mediated by recently discovered recurrent endocrine cycles...
March 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28290602/ajs1669-a-novel-small-molecule-muscle-glycogen-synthase-activator-improves-glucose-metabolism-and-reduces-body-fat-mass-in-mice
#12
Kazuhiro Nakano, Sen Takeshita, Noriko Kawasaki, Wataru Miyanaga, Yoriko Okamatsu, Mizuki Dohi, Tadakiyo Nakagawa
Impaired glycogen synthesis and turnover are common in insulin resistance and type 2 diabetes. As glycogen synthase (GS) is a key enzyme involved in the synthetic process, it presents a promising therapeutic target for the treatment of type 2 diabetes. In the present study, we identified a novel, potent and orally available GS activator AJS1669 {sodium 2-[[5-[[4-(4,5-difluoro-2-methylsulfanyl-phenyl)phenoxy] methyl]furan-2-carbonyl]-(2-furylmethyl)amino] acetate}. In vitro, we performed a glycogen synthase 1 (GYS1) activation assay for screening GS activators and identified that the activity of AJS1669 was further potentiated in the presence of glucose-6-phosphate (G6P)...
April 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28252873/glucose-metabolism-in-completed-suicide-a-forensic-pathological-pilot-study
#13
Jonas Forsman, Terhi Keltanen, Benny Liberg, Antti Sajantila, Thomas Masterman, Katarina Lindroos
AIM: To determine whether antemortem blood levels of glycated hemoglobin (HbA1c) and glucose predict completed suicide and, by extension, whether markers of glucose metabolism might be associated with a prosuicidal trait or state. METHOD: From consecutively performed autopsies, samples of blood and vitreous humor from 17 suicide victims and 27 non-suicide controls were compared with regard to levels of glucose, lactate, and HbA1c. RESULTS: Mean HbA1c was higher, and mean estimated blood glucose lower, among suicide victims, although tests revealed no significant differences (P=0...
February 28, 2017: Croatian Medical Journal
https://www.readbyqxmd.com/read/28231061/role-of-treatment-modifying-mthfr677c-t-and-1298a-c-polymorphisms-in-metformin-treated-puerto-rican-patients-with-type-2-diabetes-mellitus-and-peripheral-neuropathy
#14
Francisco J Jiménez-Ramírez, Liza M Castro, Clarymar Ortiz, Jennifer Concepción, Jessicca Y Renta, Raúl H Morales-Borges, Jorge R Miranda-Massari, Jorge Duconge
BACKGROUND: The study was conducted to investigate potential association between MTHFR genotypes and diabetic peripheral neuropathy (DPN) in Puerto Ricans with type-2 diabetes mellitus (T2DM) treated with metformin. The prevalence of major MTHFR polymorphisms in this cohort was also ascertained. METHODS: DNAs from 89 metformin-treated patients with T2DM and DPN were genotyped using the PCR-based RFLP assay for MTHFR677C>T and 1298A>C polymorphisms. Frequency distributions of these variants in the study cohort were compared to those reported for three reference populations (HapMap project) and controls (400 newborn specimens)...
March 1, 2017: Drug Metabolism and Personalized Therapy
https://www.readbyqxmd.com/read/28202005/impact-of-gut-hormone-fgf-19-on-type-2-diabetes-and-mitochondrial-recovery-in-a-prospective-study-of-obese-diabetic-women-undergoing-bariatric-surgery
#15
Lucia Martinez de la Escalera, Ioannis Kyrou, Jana Vrbikova, Voitech Hainer, Petra Sramkova, Martin Fried, Milan K Piya, Sudhesh Kumar, Gyanendra Tripathi, Philip G McTernan
BACKGROUND: The ileal-derived hormone, fibroblast growth factor 19 (FGF-19), may promote weight loss and facilitate type-2 diabetes mellitus remission in bariatric surgical patients. We investigated the effect of different bariatric procedures on circulating FGF-19 levels and the resulting impact on mitochondrial health in white adipose tissue (AT). METHODS: Obese and type-2 diabetic women (n = 39, BMI > 35 kg/m(2)) undergoing either biliopancreatic diversion (BPD), laparoscopic greater curvature plication (LGCP), or laparoscopic adjustable gastric banding (LAGB) participated in this ethics approved study...
February 16, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28182339/the-circulating-levels-of-complement-c1q-tnf-related-protein-13-ctrp13-in-patients-with-type-2-diabetes-and-its-association-with-insulin-resistance
#16
Abolfazl Afrookhteh, Solaleh Emamgholipour, Behnam Alipoor, Nariman Moradi, Reza Meshkani, Ensieh Nasli-Esfahani, Ali Rahimipour, Mehrnoosh Shanaki
BACKGROUND: Complement-C1q/TNF-related protein 13 (CTRP13) is a novel adipokine involved in the regulation of energy metabolism. Here, we sought to evaluate serum levels of CTRP13 and adiponectin in patients with type 2 diabetes (T2D) (n = 40) and healthy subjects (n = 40) and also to study the association of CTRP13 levels with diabetes-related indices. METHODS: Circulating levels of CTRP13 and adiponectin were measured by enzyme-linked immunosorbent assay (ELISA) in T2D patients (n = 40) and in an age and gender-matched control group (n = 40)...
February 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28178951/high-sensitive-c-reactive-protein-and-risk-of-incident-type-2-diabetes-a-case-control-study-nested-within-the-singapore-chinese-health-study
#17
An Pan, Yeli Wang, Jian-Min Yuan, Woon-Puay Koh
BACKGROUND: The liver-derived C-reactive protein (CRP) is a sensitive and systemic biomarker of inflammation, and has been associated with increased risk of developing type 2 diabetes in populations other than Chinese. Therefore, we prospectively examined the relation between plasma levels of CRP and risk of type 2 diabetes (T2D) among a Chinese population. METHODS: Plasma high-sensitive CRP (hs-CRP) concentrations were assayed among 571 T2D cases and 571 controls nested in the prospective cohort of the Singapore Chinese Health Study...
February 8, 2017: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/28164640/unexpected-detection-of-hbh-cs-in-a-pregnant-woman-by-assessing-hba1c-using-capillary-electrophoresis
#18
Liangying Zhong, Miansheng Yan, Min Liu, Yingjun Xie, Lingling Xu, Linhuan Huang
BACKGROUND: Testing for hemoglobin A1C (HbA1C) is useful for following up on glycemic control in diabetic patients as well as in pregnant women. METHODS: A pregnant Chinese woman appeared for regular pregnancy check-ups. While monitoring blood glucose, an HbA1c test was initially performed in the pregnant Chinese woman using a CE-HPLC assay and capillary electrophoresis. Then acid gel Hb electrophoresis, a reverse dot-blot (RDB) assay, gap-PCR and DNA sequencing were applied to further evaluate the Hb variants...
July 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28164565/multicenter-evaluation-of-a-new-high-throughput-hba1c-testing-platform
#19
R Imdahl, R Roddiger, E Casis-Saenz
BACKGROUND: This non-interventional, multicenter study with anonymized leftover patient samples was performed to evaluate the reliability and analytical performance of the novel high-throughput HbA1c cobas c 513 analyzer. METHODS: A performance evaluation was carried out at three sites to validate the overall system functionality, user interaction and analytical performance of the new cobas c 513 analyzer using the Tina-quant® HbA1c Gen. 3 assay. RESULTS: HbA1c applications for both whole blood and hemolysate samples show a high precision using both quality control materials and pools of whole blood or hemolysates...
December 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28159227/alterations-of-serum-trace-elements-in-patients-with-type-2-diabetes
#20
Hongmei Zhang, Chonghuai Yan, Zhen Yang, Weiwei Zhang, Yixin Niu, Xiaoyong Li, Li Qin, Qing Su
OBJECTIVE: The aim of the present study is to investigate the association of trace elements and the risk of type 2 diabetes mellitus. DESIGN AND METHODS: The 1837 participants (637 men and 1200 women) aged 40-70 were from a cross-sectional community-based study performed in downtown Shanghai. All the participants without diabetes mellitus history underwent a 75-g OGTT. The participants with diabetes mellitus took 100g steamed bread as the substitute. The fasting and OGTT 2h or postprandial 2h venous blood samples were collected...
March 2017: Journal of Trace Elements in Medicine and Biology
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