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https://www.readbyqxmd.com/read/28088128/structure-of-the-o-specific-polysaccharide-from-the-lipopolysaccharide-of-aeromonas-hydrophila-strain-k691-containing-4-acetamido-4-6-dideoxy-d-glucose
#1
Katarzyna Pakiet, Anna Turska-Szewczuk, Magdalena A Karas, Agnieszka Pekala, Hubert Pietras
The O-specific polysaccharide (OPS) was isolated from the lipopolysaccharide of Aeromonas hydrophila strain K691 and studied by chemical methods and (1)H and (13)C NMR spectroscopy, including 2D (1)H,(1)H COSY, TOCSY, NOESY, (1)H-detected heteronuclear (1)H,(13)C HSQC, and HMBC experiments. It was found that the O-specific polysaccharide was built up of pentasaccharide repeating units composed of β-GlcpNAc, 2-O-acetylated α-Rhap, and β-Quip4NAc residues. The following structure of the OPS was established: →3)-α-l-Rha2OAc-(1→3)-β-d-GlcNAc-(1→3)-α-l-Rha2OAc-(1→3)-β-d-GlcNAc-(1→2)-β-d-Qui4NAc-(1→...
December 23, 2016: Carbohydrate Research
https://www.readbyqxmd.com/read/28088113/modulatory-effect-of-vanillic-acid-on-antioxidant-status-in-high-fat-diet-induced-changes-in-diabetic-hypertensive-rats
#2
Kolanji Vinothiya, Natarajan Ashokkumar
The worldwide incidence of diabetes has increased dramatically along with widespread lifestyle and dietary changes. Diets high in fat are strongly associated with the development of obesity and can induce insulin resistance in humans and animals. It is clear that obesity constitutes a risk factor for contributing to the development of type 2 diabetes. In the present study, we investigated the therapeutic potential action of vanillic acid on diabetes associated complications using a rat model. Rats were made diabetic hypertensive by high fat diet (HFD) for 20 weeks and were treated with vanillic acid (50mg/kg bw) for last 8 weeks...
January 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28087908/-berberine-regulates-glycemia-via-local-inhibition-of-intestinal-dipeptidyl-peptidase-%C3%A2
#3
Jiesheng Wang, Guanhai Dai, Weijia Li
Objective: To investigate the effect of berberine on glycemia regulation in rats with diabetes and the related mechanisms. Methods: Diabetic-like rat model was successfully induced by intraperitoneal injection of streptozotocin in 50 out of 60 male SD rats, which were then randomly divided into 5 groups with 10 rats in each:control group (received vehicle only), positive drug control group (sitagliptin 10 mg·kg(-1)·d(-1)), low-dose berberine group (30 mg·kg(-1)·d(-1)), moderate-dose berberine group (60 mg·kg(-1)·d(-1)), and high-dose berberine group (120 mg·kg(-1)·d(-1))...
May 25, 2016: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28087879/management-of-daily-glycemic-fluctuations-in-patients-with-type-2-diabetes
#4
Pamela R Kushner
Traditional measures of overall glucose control, such as glycated hemoglobin (A1C), may not fully capture short-term, rapid changes in blood glucose. With the availability of multiple options to control A1C, glycemic fluctuations have emerged as an additional therapeutic goal for the management of type 2 diabetes (T2D).
November 2016: Journal of Family Practice
https://www.readbyqxmd.com/read/28087818/three-hours-of-intermittent-hypoxia-increases-circulating-glucose-levels-in-healthy-adults
#5
Lauren P Newhouse, Michael J Joyner, Timothy B Curry, Marcello C Laurenti, Chiara Dalla Man, Claudio Cobelli, Adrian Vella, Jacqueline K Limberg
An independent association exists between sleep apnea and diabetes. Animal models suggest exposure to intermittent hypoxia, a consequence of sleep apnea, results in altered glucose metabolism and fasting hyperglycemia. However, it is unknown if acute exposure to intermittent hypoxia increases glucose concentrations in nondiabetic humans. We hypothesized plasma glucose would be increased from baseline following 3 h of intermittent hypoxia in healthy humans independent of any effect on insulin sensitivity. Eight (7M/1F, 21-34 years) healthy subjects completed two study visits randomized to 3 h of intermittent hypoxia or continuous normoxia, followed by an oral glucose tolerance test...
January 2017: Physiological Reports
https://www.readbyqxmd.com/read/28087608/diabetes-abnormal-glucose-dyslipidemia-hypertension-and-risk-of-inflammatory-and-other-breast-cancer
#6
Catherine Schairer, Shahinaz M Gadalla, Ruth M Pfeiffer, Steven C Moore, Eric A Engels
BACKGROUND: Obesity has been associated with substantially higher risk of inflammatory breast cancer (IBC) than other breast cancer. Here, we assess whether comorbidities of obesity, namely diabetes, abnormal glucose, dyslipidemia, and hypertension, are differentially related to risk of inflammatory breast cancer and other breast cancers by tumor stage at diagnosis (localized/regional/distant/unstaged). METHODS: We used linked SEER-Medicare data, with female breast cancer cases aged 66+ years identified by SEER registries (years 1992-2011)...
January 13, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28087555/associations-of-reallocating-sitting-time-into-standing-or-stepping-with-glucose-insulin-and-insulin-sensitivity-a-cross-sectional-analysis-of-adults-at-risk-of-type-2-diabetes
#7
Charlotte L Edwardson, Joe Henson, Danielle H Bodicoat, Kishan Bakrania, Kamlesh Khunti, Melanie J Davies, Thomas Yates
OBJECTIVE: To quantify associations between sitting time and glucose, insulin and insulin sensitivity by considering reallocation of time into standing or stepping. DESIGN: Cross-sectional. SETTING: Leicestershire, UK, 2013. PARTICIPANTS: Adults aged 30-75 years at high risk of impaired glucose regulation (IGR) or type 2 diabetes. 435 adults (age 66.8±7.4 years; 61.7% male; 89.2% white European) were included. METHODS: Participants wore an activPAL3 monitor 24 hours/day for 7 days to capture time spent sitting, standing and stepping...
January 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28087508/international-variation-in-outcomes-among-people-with-cardiovascular-disease-or-cardiovascular-risk-factors-and-impaired-glucose-tolerance-insights-from-the-navigator-trial
#8
Marilia Harumi Higuchi Dos Santos, Abhinav Sharma, Jie-Lena Sun, Karen Pieper, John J V McMurray, Rury R Holman, Renato D Lopes
BACKGROUND: Regional differences in risk of diabetes mellitus and cardiovascular outcomes in people with impaired glucose tolerance are poorly characterized. Our objective was to evaluate regional variation in risk of new-onset diabetes mellitus, cardiovascular outcomes, and treatment effects in participants from the NAVIGATOR (Nateglinide and Valsartan in Impaired Glucose Tolerance Outcomes Research) trial. METHODS AND RESULTS: NAVIGATOR randomized people with impaired glucose tolerance and cardiovascular risk factors or with established cardiovascular disease to valsartan (or placebo) and to nateglinide (or placebo) with a median 5-year follow-up...
January 13, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28087461/low-glucose-stress-decreases-cellular-nadh-and-mitochondrial-atp-in-colonic-epithelial-cancer-cells-influence-of-mitochondrial-substrates
#9
Magdalena L Circu, Ronald E Maloney, Tak Yee Aw
In this study, we investigated how colonic epithelial cells maintained pyridine nucleotide (NADH/NAD(+)) redox homeostasis upon acute metabolic variation imposed by glucose deprivation or supplementation with mitochondrial substrates, succinate and malate/glutamate (M/G). Our results showed that low glucose caused cellular NADH/NAD(+) redox imbalance that diminished lactate dehydrogenase (LDH) activity and resulted in lower lactate contents. The concurrent activation of malic enzyme (ME) suggested a role for malate in preserving cellular pyruvate that remained unchanged at low glucose...
January 10, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28087437/hydrogen-rich-saline-attenuates-hippocampus-endoplasmic-reticulum-stress-after-cardiac-arrest-in-rats
#10
Yu Gao, Qinfang Gui, Li Jin, Pan Yu, Lin Wu, Liangbin Cao, Qiang Wang, Manlin Duan
BACKGROUND: Hydrogen-rich saline can selectively scavenge reactive oxygen species (ROS) and protect brain against ischemia reperfusion (I/R) injury. Endoplasmic reticulum stress (ERS) has been implicated in the pathological process of cerebral ischemia. However, very little is known about the role of hydrogen-rich saline in mediating pathophysiological reactions to ERS after I/R injury caused by cardiac arrest. METHODS: The rats were randomly divided into three groups, sham group (n=30), ischemia/reperfusion group (n=40) and hydrogen-rich saline group (n=40)...
January 10, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28087385/berberine-exerts-renoprotective-effects-by-regulating-the-ages-rage-signaling-pathway-in-mesangial-cells-during-diabetic-nephropathy
#11
Yuan-Ye Qiu, Li-Qin Tang, Wei Wei
In this study, we explored the effect of berberine treatment on the AGEs-RAGE pathway in a rat model of diabetic nephropathy, and we investigated the mechanism by which key factors caused kidney injury and the effects of berberine. In vivo, berberine improved fasting blood glucose, body weight, the majority of biochemical and renal function parameters and histopathological changes in the diabetic kidney. Western blotting and immunohistochemistry revealed significant increases in the levels of AGEs, RAGE, P-PKC-β and TGF-β1 in injured kidneys, and these levels were markedly decreased by treatment with berberine...
January 10, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28087357/early-effect-of-bariatric-surgery-on-urogenital-function-in-morbidly-obese-men
#12
Maha Aleid, Asif Muneer, Sara Renshaw, Jason George, Andrew D Jenkinson, Marco Adamo, Mohamed Elkalaawy, Rachel Batterham, David J Ralph, Majid Hashemi, Selim Cellek
INTRODUCTION: Obesity is an independent risk factor for erectile dysfunction (ED) and lower urinary tract symptoms (LUTS). Bariatric surgery has been shown to improve erectile function and urinary symptoms in medium- to long-term studies (3- to 12-month postoperative follow-up). AIM: To investigate the early effect (1 month postoperatively) of bariatric surgery on ED and LUTS, which has not previously been investigated. METHODS: Morbidly obese men (body mass index > 35 kg/m(2)) undergoing bariatric surgery were asked to complete the International Index of Erectile Function (IIEF) and International Prostate Symptom Score (IPSS) questionnaires before surgery and 1, 3, and 6 months after surgery...
January 10, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28087336/oleate-induces-katp-channel-dependent-hyperpolarisation-in-mouse-hypothalamic-glucose-excited-neurones-without-altering-cellular-energy-charge
#13
Selma Dadak, Craig Beall, Julia M Vlachaki Walker, Marc Pm Soutar, Rory J McCrimmon, Michael L J Ashford
The unsaturated fatty acid, oleate exhibits anorexigenic properties reducing food intake and hepatic glucose output. However, its mechanism of action in the hypothalamus has not been fully determined. This study investigated the effects of oleate and glucose on GT1-7 mouse hypothalamic cells (a model of glucose-excited (GE) neurones) and mouse arcuate nucleus (ARC) neurones. Whole-cell and perforated patch-clamp recordings, immunoblotting and cell energy status measures were used to investigate oleate and glucose sensing properties of mouse hypothalamic neurones...
January 9, 2017: Neuroscience
https://www.readbyqxmd.com/read/28087314/a-protective-role-of-cumulus-cells-after-short-term-exposure-of-rat-cumulus-cell-oocyte-complexes-to-lifestyle-or-environmental-contaminants
#14
Kelly A Campen, Kenneth P McNatty, Janet L Pitman
Ovarian follicular fluid provides a potential reservoir for exogenous compounds that may adversely affect oocyte quality. This study examined the effects of common lifestyle and environmental contaminants, namely bisphenol-A (BPA), caffeine, 3,4-methylenedioxymethamphetamine (MDMA), nicotine and Δ(9)-tetrahydrocannabinol on gap junction genes (Gja1, Gja4) and proteins (GJA1), glucose metabolism genes (Gfpt1, Pfkp) and oocyte growth factor genes (Bmp15, Gdf9), as well as gap junction transfer rate, in rat cumulus-oocyte complexes (COCs)...
January 10, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28087246/adipocytokines-and-anthropometric-measures-in-type-2-diabetics
#15
Shubhangi M Harke, Suresh P Khadke, Abhijit A Ghadge, Ashwini S Manglekar, Shashank S Shah, Arundhati G Diwan, Aniket A Kuvalekar
AIM: Type 2 diabetes mellitus has assumed pandemic proportions worldwide. Aggressive management of hyperglycemia in diabetics is a primary goal of treatment. We have previously reported favorable effects of oral hypoglycemic agents on adipocytokines. Aim of the present study was to investigate the relationship of adipocytokines with anthropometric measures and biochemical parameters in type 2 diabetics. METHODS: Clinically diagnosed type 2 diabetics and age, gender matched healthy volunteers were recruited for study...
December 30, 2016: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28087233/anti-diabetic-effects-of-inonotus-obliquus-polysaccharides-chromium-iii-complex-in-type-2-diabetic-mice-and-its-sub-acute-toxicity-evaluation-in-normal-mice
#16
Cong Wang, Zhongqin Chen, Yuxiang Pan, Xudong Gao, Haixia Chen
Polysaccharides are important bioactive ingredients from Inonotus obliquus. This study aimed to synthesize and characterize a novel I. obliquus polysaccharides-chromium (III) complex (UIOPC) and investigate the anti-diabetic effects in streptozotocin (STZ) induced type 2 diabetes mellitus (T2DM) mice and sub-acute toxicity in normal mice. The molecular weight of UIOPC was about 11.5 × 10 (4) Da with the chromium content was 13.01% and the chromium was linked with polysaccharides through coordination bond...
January 10, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28087205/elevated-fasting-glucose-and-albuminuria-may-be-a-marker-for-all-cause-mortality-in-indigenous-adults-in-north-queensland-a-follow-up-study-1998-2006
#17
Ming Li, Robyn McDermott
AIMS: To document risk factors of all-cause mortality in a cohort of indigenous Australians from 23 communities of North Queensland during 1998-2006. METHODS: Among 2787 indigenous adults, baseline weight, waist circumference, blood pressure, fasting glucose, lipids, gamma-glutamyl transferase, urine albumin creatinine ratio, smoking, alcohol intake and physical activity were measured in 1998-2000. Deaths were ascertained from State Registry of Deaths, hospitalization and clinical records till 2006...
January 5, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28087178/acupuncture-for-serum-uric-acid-in-patients-with-asymptomatic-hyperuricemia-a-randomized-double-blind-placebo-controlled-trial
#18
Yingjuan Huang, Jun Meng, Baoguo Sun, Ting Xiang, Xin Zhou, Biyu Xu, Yingzi Wu, Zexiong Chen, Shijun Zhang
BACKGROUND: Hyperuricemia (HUA) is the most common disease associated with cardiovascular disease, metabolic syndrome, hypertension, and kidney disease. The objective of the current study was to evaluate the preliminary efficacy, mechanism, and safety of acupuncture on serum uric acid in patients with asymptomatic HUA. METHODS: A randomized, placebo-controlled trial among 123 patients with asymptomatic HUA was conducted. The acupoints used in the acupuncture group were bilateral Five Shu in Spleen Meridian...
January 6, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28086956/differential-expression-of-e-type-prostanoid-receptors-2-and-4-in-microglia-stimulated-with-lipopolysaccharide
#19
Ester Bonfill-Teixidor, Amaia Otxoa-de-Amezaga, Miriam Font-Nieves, M Glòria Sans-Fons, Anna M Planas
BACKGROUND: Cyclooxygenase-2 (COX-2) is induced under inflammatory conditions, and prostaglandin E2 (PGE2) is one of the products of COX activity. PGE2 has pleiotropic actions depending on the activation of specific E-type prostanoid EP1-4 receptors. We investigated the involvement of PGE2 and EP receptors in glial activation in response to an inflammatory challenge induced by LPS. METHODS: Cultures of mouse microglia or astroglia cells were treated with LPS in the presence or absence of COX-2 inhibitors, and the production of PGE2 was measured by ELISA...
January 5, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28086951/sodium-glucose-transporter-2-sglt2-inhibition-with-empagliflozin-improves-cardiac-diastolic-function-in-a-female-rodent-model-of-diabetes
#20
Javad Habibi, Annayya R Aroor, James R Sowers, Guanghong Jia, Melvin R Hayden, Mona Garro, Brady Barron, Eric Mayoux, R Scott Rector, Adam Whaley-Connell, Vincent G DeMarco
Obese and diabetic individuals are at increased risk for impairments in diastolic relaxation and heart failure with preserved ejection fraction. The impairments in diastolic relaxation are especially pronounced in obese and diabetic women and predict future cardiovascular disease (CVD) events in this population. Recent clinical data suggest sodium glucose transporter-2 (SGLT2) inhibition reduces CVD events in diabetic individuals, but the mechanisms of this CVD protection are unknown. To determine whether targeting SGLT2 improves diastolic relaxation, we utilized empagliflozin (EMPA) in female db/db mice...
January 13, 2017: Cardiovascular Diabetology
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