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Glycated albumin

Z Merhi, E Buyuk, M J Cipolla
STUDY QUESTION: Does vitamin D attenuate the adverse effects of advanced glycation end products (AGEs) on steroidogenesis by human granulosa cells (GCs)? SUMMARY ANSWER: AGEs alter the expression of genes important in steroidogenesis while 1,25-dihydroxyvitamin D3 (vit D3) in vitro attenuates some of the actions of AGEs on steroidogenic gene expression, possibly by downregulating the expression of the pro-inflammatory cell membrane receptor for AGEs (RAGE). WHAT IS KNOWN ALREADY: Vitamin D attenuates the pro-inflammatory effects of AGEs in non-ovarian tissues...
March 12, 2018: Molecular Human Reproduction
Junichi Hoshino, Takayuki Hamano, Masanori Abe, Takeshi Hasegawa, Atsushi Wada, Yoshifumi Ubara, Kenmei Takaichi, Masaaki Inaba, Shigeru Nakai, Ikuto Masakane
Background: For glycemic control in diabetic patients on dialysis it was unclear what level of glycated albumin (GA) was associated with the lowest mortality and GA's utility. Accordingly, we examined the difference in association between GA and hemoglobin A1c (HbA1c) with 1-year mortality in a cohort of the Japanese Society for Dialysis Therapy. Methods: We examined 84 282 patients with prevalent diabetes who were on maintenance hemodialysis (HD) (female 30.3%; mean age 67...
March 8, 2018: Nephrology, Dialysis, Transplantation
Antonio Rodriguez-Poncelas, Joan Barrot-de la-Puente, Gabriel Coll de Tuero, Carles López-Arpí, Bogdan Vlacho, Flora Lopéz-Simarro, Xavier Mundet Tudurí, Josep Franch-Nadal
AIM: The aim of this study was to assess glycaemic control and prescribing practices of antihyperglycaemic treatment in patients with diabetes mellitus type 2 aged 75 years or older. METHODS: We analysed data from health electronic records from 4,581 persons attended at primary healthcare centres of the Institut Català de la Salut (ICS), in the Girona Sud area of Catalonia, Spain, during 2013 and 2016. Variables such as age, gender, body mass index (BMI), diabetes duration, age at diabetes diagnosis, glycated haemoglobin (HbA1c), creatinine, glomerular filtrate rate and the albumin/creatinine ratio in urine were collected...
March 7, 2018: International Journal of Clinical Practice
Wenjie Jian, Liangyu Wang, Lanlan Wu, Yuan-Ming Sun
The pulsed electric fields (PEF) treatment is a novel method for obtaining glycated proteins by way of a Maillard reaction between proteins and polysaccharides but its effect on the preparation of protein-monosaccharide conjugate has not been explored. This study aimed to prepare bovine serum albumin (BSA)-glucose and BSA-mannose conjugates using PEF in pH 10.0 at an intensity of 10 or 20 kV/cm, frequency of 1 kHz, pulse width of 20 μs and 73.5 pulses. The conjugates were evaluated for physicochemical properties...
March 3, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Li Zhou, Di Yao, Songqing Zhao, Yuzhang Jiang, Weiping Lu
INTRODUCTION: A variety of molecular pathways, such as generation of advanced glycation end products, inflammation, and oxidative stress, are involved in the development of diabetic nephropathy (DN). Recently, a protective effect of omega-3 polyunsaturated fatty acids on the kidney has been reported. This study aimed to determine serum docosahexaenoic acid (DHA) level and its association with inflammation factors in patients with DN. MATERIALS AND METHODS: One hundred patients with type 2 diabetic mellitus were divided into 3 groups of non-DN, early DN, and clinical DN, based on 24-hour urinary albumin levels...
March 2018: Iranian Journal of Kidney Diseases
Shinje Moon, Hyung-Joon Yoo, You-Hern Ahn, Gheun-Ho Kim, Jae Myung Yu, Joon-Sung Park
The association of mild increase in urinary albumin excretion with diabetic retinopathy (DR) in clinical studies is controversial. The aim of this study is to clarify the interaction between increased glycemic exposure and mild increase in urinary albumin excretion on risk of DR.Data were collected from the National Health and Nutrition Examination Survey (NHANES) from 2005 to 2012. Overall, data from 953 participants without microalbuminuria (477 men and 476 women) were assessed. Logistic regression analysis was constructed to evaluate the association between DR and related clinical parameters, including urinary albumin-creatinine ratio (UACR, mg/g creatinine)...
January 2018: Medicine (Baltimore)
Yanping Liu, Ju Qiu, Yanfen Yue, Kang Li, Guixing Ren
Introduction: Although black-grained wheat (BGW) is recognized as a nutritional food for humans in China, it has yet to be utilized well for industrial applications, which can be attributed to the limited research data available on its health benefits. Thus, the hypothesis was tested that a daily substitution of BGW for a partial staple food would improve glycemia and inflammatory profile of type 2 diabetes mellitus (T2DM) patients by a randomized controlled trial. Materials and methods: A total of 120 patients were randomly divided between control group (diet control and nutritional education) and BGW group (daily substitution of BGW for a partial staple food)...
2018: Therapeutics and Clinical Risk Management
Chiara Bellia, Martina Zaninotto, Chiara Cosma, Luisa Agnello, Giulia Bivona, Mariela Marinova, Bruna Lo Sasso, Mario Plebani, Marcello Ciaccio
OBJECTIVES: Glycated Albumin (GA) has been proposed as a screening marker for diabetes in Asian countries in the last years. Nevertheless, few studies have been conducted in Caucasian population. The aim of this study is to evaluate the clinical usefulness of GA in diabetes diagnosis in Caucasian asymptomatic subjects considered at risk of diabetes based on medical history and Fasting Plasma Glucose (FPG). DESIGN AND METHODS: Three hundred and thirty-four Caucasian subjects having one or more risk factor for diabetes, and/or FPG ranging from 5...
February 24, 2018: Clinical Biochemistry
Azaj Ahmed, Anas Shamsi, Mohd Shahnawaz Khan, Fohad Mabood Husain, Bilqees Bano
Serum protein glycation and formation of advanced glycation end products (AGEs) correlates with many diseases viz. diabetes signifying the importance of studying the glycation pattern of serum proteins. In our present study, methylglyoxal was investigated for its effect on the structure of human serum albumin (HSA); exploring the formation of AGEs and aggregates of HSA. The analytical tools employed includes intrinsic and extrinsic fluorescence, UV spectroscopy, far UV circular dichroism, Thioflavin T fluorescence, congo red binding, polyacrylamide gel electrophoresis (PAGE)...
February 23, 2018: International Journal of Biological Macromolecules
Maxime Cournot, Elena Burillo, Pierre-Jean Saulnier, Cynthia Planesse, Elise Gand, Michaela Rehman, Stéphanie Ragot, Philippe Rondeau, Aurélie Catan, Marie-Paule Gonthier, Eva Feigerlova, Olivier Meilhac, Samy Hadjadj
BACKGROUND: Despite pathophysiological relevance and promising experimental data, the usefulness of biomarkers of oxidative stress for cardiac risk prediction is unclear. The aim of our study was to investigate the prognostic value of 6 biomarkers exploring different pathways of oxidative stress for predicting adverse cardiovascular outcomes in patients with type 2 diabetes mellitus beyond established risk factors. METHODS AND RESULTS: The SURDIAGENE (Survie, Diabete de type 2 et Genetique) prospective cohort study consecutively recruited 1468 patients with type 2 diabetes mellitus...
February 25, 2018: Journal of the American Heart Association
Govindarajan Prasanna, Pu Jing
In this study, chemical chaperone like function of cyanidin-3-O-glucoside (C3G) was investigated through fluorescence spectroscopy, UV-visible spectroscopy, circular dichroism spectroscopy, confocal microscopy, scanning electron microscopy and molecular docking studies. Early and advanced glycation inhibitory effect was evaluated by fluorescence spectroscopy and agarose gel electrophoresis. Amyloids were investigated based on their propensity to bind Congo Red (CR) and Thioflavin T (ThT) by multiple microscopic approaches...
February 20, 2018: Archives of Biochemistry and Biophysics
Simone Brardi, Gabriele Cevenini, Vanni Giovannelli, Giuseppe Romano
OBJECTIVE: This longitudinal prospective observational type study was conceived with the aim to examine the impact on renal resistive index (RRI) of the variables that we can manipulate with therapeutic and or dietetic interventions in a chronic kidney disease population in order to known which of these variables was statistically related to changes in RRI and therefore could become the object of the greatest therapeutic effort. MATERIAL AND METHODS: This study was undertaken between May 2016 to May 2017 in the outpatient nephrology and urology clinic of San Donato Hospital in Arezzo...
December 31, 2017: Archivio Italiano di Urologia, Andrologia
Ikki Shimizu, Yuji Hiramatsu, Yasue Omori, Masao Nakabayashi
Background:To clarify the relationship between glycated hemoglobin (HbA1c) and glycated albumin (GA) levels during pregnancy with neonatal outcomes, a multicenter study was conducted by the Japanese Society of Diabetes and Pregnancy. Methods:A total of 136 patients (type 1: n = 47, type 2: n = 89) who enrolled in the study were diagnosed based on the Japanese Diabetes Society diagnostic criteria for diabetes mellitus. Thresholds for HbA1c and GA were set at 5.8 % and 15.8 %, respectively, as the upper limits of the normal reference interval in pregnant women...
January 1, 2018: Annals of Clinical Biochemistry
Euna Ko, Van-Khue Tran, Yanfang Geng, Min Ki Kim, Ga Hyun Jin, Seong Eun Son, Won Hur, Gi Hun Seong
Self-monitoring of glycated albumin (GA), a useful glycemic marker, is an established method for preventing diabetes complications. Here, the paper-based lateral flow assay devices were developed for the sensitive detection of GA and the total human serum albumin (tHSA) in self-monitoring diabetes patients. Boronic acid-derived agarose beads were packed into a hole on a lateral flow channel. These well-coordinated agarose beads were used to capture GA through specific cis-diol interactions and to enhance the colorimetric signals by concentrating the target molecules...
January 2018: Biomicrofluidics
Kunihiko Hashimoto, Masafumi Koga
Although HbA1c is widely used as a glycemic control indicator, HbA1c is known to show falsely high levels in patients in an iron deficient state (IDS). We compared the influence of IDS on HbA1c levels between pregnant women, due to mainly an increase in demand for iron without bleeding, and non-pregnant women, due to mainly bleeding (menstruation). We studied 42 non-diabetic pregnant women (pregnant group) and 42 age-matched non-pregnant women with normal glucose tolerance (non-pregnant group). We compared HbA1c and glycated albumin (GA) levels between IDS and normal iron state (NIS) in both groups...
February 20, 2018: Journal of Clinical Medicine
Ishrat Jahan Saifi, Km Neelofar, M R Ajmal, Sheelu Shafiq Siddiqi
Glycoxidation of protein may lead to develop diabetes. In the present study, different concentrations of 2-deoxy d-ribose (2-dRib) were used to modify human serum albumin (HSA). Nitro Blue Tetrazolium (NBT) assay results showed that yield of the fructosamine content was directly proportional to the concentration of 2-dRib. UV and fluorescence spectroscopy results showed an increment in hyperchromicity and decrease in fluorescence intensity of 2-dRib modified HSA as compared to native HSA. Further secondary structural changes were confirmed by UV-circular dichroism (UV-CD) and Fourier transform infrared spectroscopy (FT-IR)...
February 14, 2018: International Journal of Biological Macromolecules
Federica Rigoldi, Stefano Donini, Francesca Giacomina, Federico Sorana, Alberto Redaelli, Tiziano Bandiera, Emilio Parisini, Alfonso Gautieri
Amadoriases are a class of FAD-dependent enzymes that are found in fungi, yeast and bacteria and that are able to hydrolyze glycated amino acids, cleaving the sugar moiety from the amino acidic portion. So far, engineered Amadoriases have mostly found practical application in the measurement of the concentration of glycated albumin in blood samples. However, these engineered forms of Amadoriases show relatively low absolute activity and stability levels, which affect their conditions of use. Therefore, enzyme stabilization is desirable prior to function-altering molecular engineering...
February 14, 2018: Scientific Reports
Guifen Niu, Jianfei Guo, Yaqiang Tian, Kexiang Zhao, Jian Li, Qian Xiao
The aim of the study was to explore the influence of α‑lipoic acid (α‑LA) on the cytotoxicity of advanced glycation end‑products (AGEs) against SH‑SY5Y cells. AGE‑bovine serum albumin (BSA) was incubated in vitro using SH‑SY5Y cells as a target model, and the control group was set. Cells were exposed to AGE‑BSA, and α‑LA was selectively added to the cells. Cell growth and death was determined by the MTT assay, which measures cellular metabolic rate, lactate dehydrogenase (LDH) leakage rate and cellular axonal length...
February 8, 2018: International Journal of Molecular Medicine
Elizabeth Selvin, Bethany Warren, Xintong He, David B Sacks, Amy K Saenger
BACKGROUND: There is growing interest in fructosamine, glycated albumin, and 1,5-anhydroglucitol (1,5-AG) as alternative measures of hyperglycemia, particularly for use in settings where traditional measures (glucose and HbA1c) are problematic or where intermediate (2-4 weeks) glycemic control is of interest. However, reference intervals for these alternative biomarkers are not established. METHODS: We measured fructosamine, glycated albumin, and 1,5-AG in a community-based sample of US black and white adults who participated in the Atherosclerosis Risk in Communities (ARIC) Study...
February 7, 2018: Clinical Chemistry
Jianpeng Li, Yongheng Yan, Duo Li, Xia Li, Xinying Lin, Zhenhua Liu, Tongcheng Xu, Fangling Du
Diacylglycerol (DAG) has been reported to reduce the serum lipid and glucose levels more effectively compared with triacylglycerol (TAG). The present study examined the long-term effects of dietary DAG on rats with type 2 diabetic nephropathy (DN). The type 2 DN model was established by administering a high-fat and high-calorie diet along with an intraperitoneal injection of 35 mg/kg body weight streptozocin, and the disease developed over the following 8 weeks. Sprague-Dawley rats were then randomly divided into the control, TAG, low-dose DAG (Low-DAG) and high-dose DAG (High-DAG) groups...
February 2018: Experimental and Therapeutic Medicine
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