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HbA1c assays

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https://www.readbyqxmd.com/read/29675559/truncated-aptamers-for-total-and-glycated-hemoglobin-and-their-integration-into-a-graphene-oxide-based-fluorometric-method-for-high-throughput-screening-for-diabetes
#1
Abrar Yousef Almusharraf, Shimaa Eissa, Mohammed Zourob
The authors describe the identification of an effective binding region of aptamers against glycated (HbA1c) and total haemoglobin (tHb) by using a fluorometric assay. Truncation of the originally selected aptamers from 60 to 46 and 34 nucleotides for HbA1c and tHb, respectively, enhances the affinity for their targets. Moreover, shortening the aptamer sequences leads to a better conformational change after target binding which enabled the integration of the aptamers in a graphene oxide (GO)-based fluorometric assay...
April 19, 2018: Mikrochimica Acta
https://www.readbyqxmd.com/read/29673927/novel-adipokines-vaspin-and-irisin-as-risk-biomarkers-for-cardiovascular-diseases-in-type-2-diabetes-mellitus
#2
Dalia H El-Lebedy, Alshaymaa A Ibrahim, Ingy O Ashmawy
AIMS: Vaspin and irisin are novel cytokines proposed as potential new biomarkers of insulin resistance and endothelial dysfunction. This work is to investigate circulating levels of vaspin and irisin in patients with type 2 diabetes mellitus (T2DM) with and without cardiovascular disease (CVD) to study potential association with disease risk. MATERIALS AND METHODS: Circulating levels of vaspin and irisin were assayed in serum from 135 T2DM patients (with and without CVD) and 70 control subjects by ELISA...
April 12, 2018: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/29651214/homeostatic-model-assessment-insulin-resistance-homa-ir-2-in-mild-subclinical-hypothyroid-subjects
#3
Shreejita Sengupta, T Jaseem, Jayachidambaram Ambalavanan, Anupama Hegde
Despite various studies with conflicting results, the effect of thyroid hormones on lipids and insulin levels in dysthyroidism is of great interest. This case control study was aimed to perceive the existence of IR and dyslipidemia in mild subclinical hypothyroid subjects (TSH ≤ 9.9 µIU/ml) as compared to their age and gender matched euthyroid controls. Basic demographic information like height, weight was recorded. Serum samples of all the subjects were assayed for thyroid profile, lipid profile, blood glucose, HbA1C and insulin...
April 2018: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/29621232/identification-and-functional-analysis-of-glycemic-trait-loci-in-the-china-health-and-nutrition-survey
#4
Cassandra N Spracklen, Jinxiu Shi, Swarooparani Vadlamudi, Ying Wu, Meng Zou, Chelsea K Raulerson, James P Davis, Monica Zeynalzadeh, Kayla Jackson, Wentao Yuan, Haifeng Wang, Weihua Shou, Ying Wang, Jingchun Luo, Leslie A Lange, Ethan M Lange, Barry M Popkin, Penny Gordon-Larsen, Shufa Du, Wei Huang, Karen L Mohlke
To identify genetic contributions to type 2 diabetes (T2D) and related glycemic traits (fasting glucose, fasting insulin, and HbA1c), we conducted genome-wide association analyses (GWAS) in up to 7,178 Chinese subjects from nine provinces in the China Health and Nutrition Survey (CHNS). We examined patterns of population structure within CHNS and found that allele frequencies differed across provinces, consistent with genetic drift and population substructure. We further validated 32 previously described T2D- and glycemic trait-loci, including G6PC2 and SIX3-SIX2 associated with fasting glucose...
April 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29619846/lactobacillus-fermentum-hp3-mediated-fermented-hericium-erinaceus-juice-as-a-health-promoting-food-supplement-to-manage-diabetes-mellitus
#5
Chaiyavat Chaiyasut, Sasimar Woraharn, Bhagavathi Sundaram Sivamaruthi, Narissara Lailerd, Periyanaina Kesika, Sartjin Peerajan
The current study investigated the antidiabetic property of Lactobacillus fermentum HP3-mediated fermented Hericium erinaceus juice (FHJ) using male Wistar rats with streptozotocin-induced diabetes mellitus (DM). FHJ was prepared using boiled mushroom juice and L. fermentum HP3. Amino acid and γ-aminobutyric acid (GABA) content of FHJ was analyzed. Streptozotocin-induced DM rats were supplemented with FHJ in a pre- and posttreatment method. The changes in plasma insulin, plasma glucose level, glycated hemoglobin (HbA1c), representative cytokines, and the antioxidant system were assessed in experimental rats using spectrophotometric methods and enzyme-linked immunosorbent assay...
January 2018: Journal of evidence-based integrative medicine
https://www.readbyqxmd.com/read/29617292/an-in-vitro-optical-sensor-designed-to-estimate-glycated-hemoglobin-levels
#6
Sanghamitra Mandal, M O Manasreh
The purpose of this research was to design an optical sensor for evaluating glycated hemoglobin (HbA1c) percentages in hemoglobin. The A1c sensors available in the market use invasive methods, while our device offers the possibility of non-invasive monitoring of HbA1c levels in diabetic patients. A prototype is assembled using two light emitting diodes with peak emission wavelengths of 535 nm and 593 nm, a photodiode, and a microcontroller. The proposed sensor measures the transmitted intensity in the form of an output voltage...
April 4, 2018: Sensors
https://www.readbyqxmd.com/read/29590229/association-of-oxytocin-with-glucose-intolerance-and-inflammation-biomarkers-in-metabolic-syndrome-patients-with-and-without-prediabetes
#7
Amal Akour, Violet Kasabri, Nailya Bulatova, Suha Al Muhaissen, Randa Naffa, Hiba Fahmawi, Munther Momani, Ayman Zayed, Yasser Bustanji
OBJECTIVES: The aim of this study was to explore the differences in OXT levels in metabolic syndrome (MetS) subjects, newly diagnosed type 2 diabetes mellitus (T2D), and prediabetes subjects vs. MetS subjects without glucose intolerance (non-diabetic MetS). It was also intended to determine the relationship between plasma OXT levels and inflammatory markers in those subjects. METHODS: Along with 45 lean and normoglycemic controls, a total of 190 MetS subjects (61 men, 129 women) were enrolled...
2018: Review of Diabetic Studies: RDS
https://www.readbyqxmd.com/read/29590102/common-%C3%AE-globin-variants-modify-hematologic-and-other-clinical-phenotypes-in-sickle-cell-trait-and-disease
#8
Laura M Raffield, Jacob C Ulirsch, Rakhi P Naik, Samuel Lessard, Robert E Handsaker, Deepti Jain, Hyun M Kang, Nathan Pankratz, Paul L Auer, Erik L Bao, Joshua D Smith, Leslie A Lange, Ethan M Lange, Yun Li, Timothy A Thornton, Bessie A Young, Goncalo R Abecasis, Cathy C Laurie, Deborah A Nickerson, Steven A McCarroll, Adolfo Correa, James G Wilson, Guillaume Lettre, Vijay G Sankaran, Alex P Reiner
Co-inheritance of α-thalassemia has a significant protective effect on the severity of complications of sickle cell disease (SCD), including stroke. However, little information exists on the association and interactions for the common African ancestral α-thalassemia mutation (-α3.7 deletion) and β-globin traits (HbS trait [SCT] and HbC trait) on important clinical phenotypes such as red blood cell parameters, anemia, and chronic kidney disease (CKD). In a community-based cohort of 2,916 African Americans from the Jackson Heart Study, we confirmed the expected associations between SCT, HbC trait, and the -α3...
March 28, 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29529688/levels-of-nitric-oxide-metabolites-and-myeloperoxidase-in-subjects-with-type-2-diabetes-mellitus-on-metformin-therapy
#9
Nevenka Jelić-Knezović, Semira Galijašević, Mila Lovrić, Marina Vasilj, Sanja Selak, Ivanka Mikulić
INTRODUCTION: Endothelial dysfunction is involved in the pathogenesis of insulin resistance, diabetes mellitus type 2, diabetic complications and preceded clinical manifestation of cardiovascular complications. Increased myeloperoxidase activity has been linked to a number of pathologies with compelling evidence in initiation and progression of inflammatory events. The aim of this study was to compare concentrations of metabolite nitric oxide and myeloperoxidase in the plasma of diabetes mellitus type 2 patients on metformin therapy, without clinical signs of cardiovascular disease and healthy subjects, as well as evaluation of concentrations of analytes in association with glycemic control...
March 12, 2018: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/29528429/comparison-of-enzymatic-assay-for-hba1c-measurement-abbott-architect-with-capillary-electrophoresis-sebia-minicap-flex-piercing-analyser
#10
Andrea Tesija Kuna, Kristina Dukic, Nora Nikolac Gabaj, Marijana Miler, Ines Vukasovic, Sanja Langer, Ana-Maria Simundic, Nada Vrkic
Objective: To compare the analytical performances of the enzymatic method (EM) and capillary electrophoresis (CE) for hemoglobin A1c (HbA1c) measurement. Methods: Imprecision, carryover, stability, linearity, method comparison, and interferences were evaluated for HbA1c via EM (Abbott Laboratories, Inc) and CE (Sebia). Results: Both methods have shown overall within-laboratory imprecision of less than 3% for International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) units (<2% National Glycohemoglobin Standardization Program [NGSP] units)...
March 8, 2018: Laboratory Medicine
https://www.readbyqxmd.com/read/29527790/immune-cell-and-cytokine-patterns-in-children-with-type-1-diabetes-mellitus-undergoing-a-remission-phase-a-longitudinal-study
#11
Ana Laura Fitas, Catarina Martins, Luís Miguel Borrego, Lurdes Lopes, Anne Jörns, Sigurd Lenzen, Catarina Limbert
AIMS/HYPOTHESIS: Type 1 diabetes (T1D) develops in distinct stages, before and after disease onset. Whether the natural course translates into different immunologic patterns is still uncertain. This study aimed at identifying peripheral immune patterns at key time-points, in T1D children undergoing remission phase. METHODS: Children with new-onset T1D and healthy age and gender-matched controls were recruited at a paediatric hospital. Peripheral blood samples were evaluated by flow cytometry at three longitudinal time-points: onset (T1), remission phase (T2) and established disease (T3)...
March 12, 2018: Pediatric Diabetes
https://www.readbyqxmd.com/read/29526626/serum-concentrations-of-fatty-acid-binding-protein-4-in-chinese-children-with-type-1-diabetes-mellitus
#12
Huan Liu, Min Guo, Fu-Li Jiang
OBJECTIVE: The aim of this study was to test the serum concentrations of fatty acid-binding protein 4(FABP4) in children with type 1 diabetes mellitus (T1DM) and to determine the relationship between patients with good and poor glycaemic control who were classified according to their glycated hemoglobin A1c (HbA1c) levels. METHODS: Children with T1DM were selected consecutively from our department from May 2016 to May 2017. For comparison, the same non-diabetic, age, sex, BMI and pubertal stage-matched healthy children were selected consecutively among non-diabetic children...
December 28, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/29473705/alpha-1-antitrypsin-treatment-of-new-onset-type-1-diabetes-an-open-label-phase-i-clinical-trial-retain-to-assess-safety-and-pharmacokinetics
#13
Gordon C Weir, Mario R Ehlers, Kristina M Harris, Sai Kanaparthi, Alice Long, Deborah Phippard, Lia J Weiner, Brett Jepson, James G McNamara, Maria Koulmanda, Terry B Strom
OBJECTIVE: To determine the safety and pharmacokinetics of alpha-1 antitrypsin (AAT) in adults and children. RESEARCH DESIGN AND METHODS: Short term AAT treatment restores euglycemia in the non-obese mouse model of type 1 diabetes. A phase I multicenter study in 16 subjects with new-onset type 1 diabetes studied the safety and pharmacokinetics of Aralast NPTM (AAT). This open-label, dose-escalation study enrolled eight adults ages 16-35 and eight children ages 8-15 within 100 days of diagnosis, to receive 12 infusions of AAT: a low dose of 45 mg/kg weekly for six weeks, followed by a higher dose of 90 mg/kg for six weeks...
February 23, 2018: Pediatric Diabetes
https://www.readbyqxmd.com/read/29468638/accuracy-of-point-of-care-hba1c-testing-in-pregnant-women
#14
Katherine Culliney, Lesley M E McCowan, Karaponi Okesene-Gafa, Rinki Murphy, Janet Rowan, Rennae S Taylor, Christopher J D Mckinlay
BACKGROUND: In New Zealand, it is recommended that all pregnant women have a haemoglobin A1c (HbA1c) test performed with their booking antenatal bloods to identify previously unrecognised diabetes. However, screening rates in some groups are low. Use of a point-of-care device may improve compliance with screening. AIM: To assess the accuracy of the COBAS b101 point-of-care system referenced against a laboratory method, for measurement of HbA1c levels in pregnant women...
February 22, 2018: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29432659/relationship-between-serum-adipsin-and-first-phase-of-glucose-stimulated-insulin-secretion-in-subjects-with-different-glucose-tolerance
#15
Qing Zhou, Qian Ge, Yao Ding, Hua Qu, Huili Wei, Rui Wu, Lu Yao, Qianping Wei, Zhengping Feng, Jian Long, Huacong Deng
AIMS: To detect serum adipsin levels in subjects with different glucose tolerance and investigate the relationship between adipsin and first-phase of insulin secretion. METHODS: 56 patients with newly diagnosed type 2 diabetes mellitus(T2DM), 36 patients with impaired glucose tolerance (IGT), and 45 subjects with normal glucose tolerance (NGT) were enrolled. Intravenous glucose tolerance tests were performed to evaluate pancreatic β cell function. The serum levels of adipsin, interleukin 1β (IL-1β), hypersensitive C Reactive Protein (hs-CRP) were assayed...
February 12, 2018: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/29408453/a-randomized-control-trial-to-establish-the-feasibility-and-safety-of-rapamycin-treatment-in-an-older-human-cohort-immunological-physical-performance-and-cognitive-effects
#16
Ellen Kraig, Leslie A Linehan, Hanyu Liang, Terry Q Romo, Qianqian Liu, Yubo Wu, Adriana D Benavides, Tyler J Curiel, Martin A Javors, Nicolas Musi, Laura Chiodo, Wouter Koek, Jonathan A L Gelfond, Dean L Kellogg
Inhibition of the mechanistic target of rapamycin (mTOR) pathway by rapamycin (RAPA), an FDA-approved immunosuppressive drug used as a clinical therapy to prevent solid organ allograft rejection, enhances longevity in mice. Importantly, RAPA was efficacious even when initiated in relatively old animals, suggesting that mTOR inhibition could potentially slow the progression of aging-associated pathologies in older humans (Harrison et al., 2009; Miller et al., 2011). However, the safety and tolerability of RAPA in older human subjects have not yet been demonstrated...
February 3, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29370998/optimal-hemoglobin-a1c-cutoff-value-for-diabetes-mellitus-and-pre-diabetes-in-pudong-new-area-shanghai-china
#17
Xianfeng Zhou, Xiaonan Ruan, Lipeng Hao, Yi Zhou, Jianjun Gu, Hua Qiu, Kang Wu, Siyu Yu, Xinyi Rui, Xiaonan Wang, Xiaolin Liu, Juzhong Ke, Genming Zhao, Qiao Sun
AIMS: Due to the diversity of the Chinese population, it requires considerable research to evaluate HbA1c diagnostic threshold for diagnosis of hyperglycemia. METHODS: We included 7909 subjects aged ≥15 without known diabetes from the baseline of Pudong community cohort in 2013. Participants took oral glucose tolerance test (OGTT) and HbA1c assay. Receiver operating characteristic curve determined the HbA1c threshold in the diagnosis of hyperglycemia. RESULTS: The optimal HbA1C threshold for diagnosing newly diagnosed diabetes (NDD) and pre-diabetes in this population was 6...
January 20, 2018: Primary Care Diabetes
https://www.readbyqxmd.com/read/29356453/association-between-1p13-polymorphisms-and-peripheral-arterial-disease-in-a-chinese-population-with-diabetes
#18
Jiangyuan Qin, Jinli Tian, Guanhua Liu, Yazhong Zhang, Luobing Tian, Yanfeng Zhen, Hewei Zhang, Jing Xu, Xueling Sun, Hui Fang
AIMS/INTRODUCTION: Variants on chromosome 1p13 have been associated with coronary artery disease and acute myocardial infarction risk in different ethnic groups. The present study aimed to investigate the association between 1p13 polymorphisms and the development of peripheral artery disease (PAD) in a Chinese population with type 2 diabetes mellitus. MATERIALS AND METHODS: 1p13 polymorphisms, rs599839, rs646776 and rs12740374, were assessed in a cohort of 882 type 2 diabetes mellitus patients including 440 type 2 diabetes mellitus patients with PAD (DM + PAD group) and 442 patients without PAD (DM group)...
January 22, 2018: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/29355435/anti-insulin-antibodies-and-adverse-events-with-biosimilar-insulin-lispro-compared-with-humalog-insulin-lispro-in-people-with-diabetes
#19
Philip Home, Karl-Michael Derwahl, Monika Ziemen, Karin Wernicke-Panten, Suzanne Pierre, Yvonne Kirchhein, Satish K Garg
BACKGROUND: SAR342434 (SAR-Lis) is a biosimilar (follow-on) of insulin lispro (Humalog® ; Ly-Lis). Two randomized, controlled, open-label, parallel-group, phase 3 studies were conducted to compare the efficacy and safety of SAR-Lis and Ly-Lis, both in combination with insulin glargine (Lantus® ). SORELLA 1 was a 12-month study in 507 people with type 1 diabetes mellitus (T1DM); SORELLA 2 was a 6-month study in 505 people with type 2 diabetes mellitus (T2DM). In this study, the impact of anti-insulin antibodies (AIA) to SAR-Lis and Ly-Lis on safety and glycemic control is reported...
February 2018: Diabetes Technology & Therapeutics
https://www.readbyqxmd.com/read/29350883/peri-implant-conditions-and-levels-of-advanced-glycation-end-products-among-patients-with-different-glycemic-control
#20
Zeyad H Al-Sowygh, Siti Mariam Ab Ghani, Konstantinos Sergis, Fahim Vohra, Zohaib Akram
BACKGROUND: A close relationship between poor glycemic control and peri-implant break down has been demonstrated. It is hypothesized that levels of advanced glycation end products (AGEs) in peri-implant sulcular fluid (PISF) are higher with increased glycemic levels in type 2 diabetes mellitus patients. PURPOSE: In the present study, we examined the clinical and radiographic peri-implant parameters and levels of AGEs among different glycemic levels in diabetic patients and assessed whether the levels of AGEs correlate with clinical peri-implant parameters...
January 19, 2018: Clinical Implant Dentistry and related Research
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