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Lactate AND Diabetes

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https://www.readbyqxmd.com/read/28432751/acute-kidney-injury-plasma-lactate-concentrations-and-lactic-acidosis-in-metformin-users-a-godarts-study
#1
Paul J Connelly, Mike Lonergan, Enrique Soto-Pedre, Louise Donnelly, Kaixin Zhou, Ewan R Pearson
AIMS: Metformin is renally excreted and has been associated with the development of lactic acidosis. Although current advice is to omit metformin during illnesses that may increase risk of acute kidney injury (AKI), the evidence supporting this is lacking. We investigated the relationship between AKI, lactate concentrations and the risk of lactic acidosis in those exposed to metformin. METHODS: We undertook a population-based case-control study of lactic acidosis in 1,746 participants with Type 2 diabetes and 846 individuals without diabetes with clinically measured lactates with and without AKI between 1994-2014...
April 21, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28426686/reactive-oxygen-species-are-required-for-driving-efficient-and-sustained-aerobic-glycolysis-during-cd4-t-cell-activation
#2
Dana M Previte, Erin C O'Connor, Elizabeth A Novak, Christina P Martins, Kevin P Mollen, Jon D Piganelli
The immune system is necessary for protecting against various pathogens. However, under certain circumstances, self-reactive immune cells can drive autoimmunity, like that exhibited in type 1 diabetes (T1D). CD4+ T cells are major contributors to the immunopathology in T1D, and in order to drive optimal T cell activation, third signal reactive oxygen species (ROS) must be present. However, the role ROS play in mediating this process remains to be further understood. Recently, cellular metabolic programs have been shown to dictate the function and fate of immune cells, including CD4+ T cells...
2017: PloS One
https://www.readbyqxmd.com/read/28420673/a-single-bout-of-high-intensity-interval-training-reduces-awareness-of-subsequent-hypoglycemia-in-patients-with-type-1-diabetes
#3
Hanne M Rooijackers, Evita C Wiegers, Marinette van der Graaf, Dick H Thijssen, Roy P C Kessels, Cees J Tack, Bastiaan E de Galan
High-intensity interval training (HIIT) gains increasing popularity in patients with diabetes. HIIT acutely increases plasma lactate levels. This may be important, since administration of lactate during hypoglycemia suppresses symptoms and counterregulation, whilst preserving cognitive function. We tested the hypothesis that HIIT acutely reduces awareness of hypoglycemia and attenuates hypoglycemia-induced cognitive dysfunction. In a randomized crossover trial, patients with type 1 diabetes and normal awareness of hypoglycemia (NAH), patients with impaired awareness of hypoglycemia (IAH), and healthy participants (n=10 per group) underwent a hyperinsulinemic-hypoglycemic (2...
April 18, 2017: Diabetes
https://www.readbyqxmd.com/read/28419197/inhibition-of-sarcolemmal-fat-cd36-by-sulfo-n-succinimidyl-oleate-rapidly-corrects-metabolism-and-restores-function-in-the-diabetic-heart-following-hypoxia-reoxygenation
#4
Latt S Mansor, Maria da Luz Sousa Fialho, Georgina Yea, Will A Coumans, James A West, Matthew Kerr, Carolyn A Carr, Joost J F P Luiken, Jan F C Glatz, Rhys D Evans, Julian L Griffin, Damian J Tyler, Kieran Clarke, Lisa C Heather
Aims: The type 2 diabetic heart oxidizes more fat and less glucose, which can impair metabolic flexibility and function. Increased sarcolemmal fatty acid translocase (FAT/CD36) imports more fatty acid into the diabetic myocardium, feeding increased fatty acid oxidation and elevated lipid deposition. Unlike other metabolic modulators that target mitochondrial fatty acid oxidation, we proposed that pharmacologically inhibiting fatty acid uptake, as the primary step in the pathway, would provide an alternative mechanism to rebalance metabolism and prevent lipid accumulation following hypoxic stress...
April 17, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28400505/no-effect-of-ascorbate-on-cutaneous-vasodilation-and-sweating-in-older-men-and-those-with-type-2-diabetes-exercising-in-the-heat
#5
Naoto Fujii, Robert D Meade, Pegah Akbari, Jeffrey C Louie, Lacy M Alexander, Pierre Boulay, Ronald J Sigal, Glen P Kenny
Aging and chronic disease such as type 2 diabetes (T2D) are associated with impairments in the body's ability to dissipate heat. To reduce the risk of heat-related injuries in these heat vulnerable individuals, it is necessary to identify interventions that can attenuate this impairment. We evaluated the hypothesis that intradermal administration of ascorbate improves cutaneous vasodilation and sweating in older adults via nitric oxide synthase (NOS)-dependent mechanisms during exercise in the heat and whether these improvements, if any, are greater in individuals with T2D...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28386795/-metabolic-and-cardiovascular-response-to-exercise-in-patients-with-type-1-diabetes
#6
I Turinese, P Marinelli, M Bonini, M Rossetti, G Statuto, T Filardi, A Paris, A Lenzi, S Morano, P Palange
PURPOSE: Physical activity is an effective therapeutic tool for cardiovascular risk prevention. However, exercise aerobic capacity of patients with type 1 diabetes (T1DM) has not been thoroughly investigated. Aim of the present study is to evaluate exercise aerobic capacity in patients with T1DM compared to a normal control population. METHODS: This observational study included 17 T1DM patients and 17 matched healthy volunteers. Cardiopulmonary exercise test (CPET) was conducted on an electronically-braked cycle ergometer...
April 6, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28382499/sitagliptin-exerts-anti-apoptotic-effect-in-nephrotoxicity-induced-by-cisplatin-in-rats
#7
Rehab S Abdelrahman
Sitagliptin is a selective inhibitor of dipeptidylpeptidase-4 enzyme used for the management of diabetes mellitus type II. The anti-inflammatory, antioxidant, and anti-apoptotic properties of sitagliptin were documented. This study was designed to explore the effect of sitagliptin (10 mg/kg, orally) on nephrotoxicity induced by cisplatin (7 mg/kg, i.p.) in Sprague-Dawley rats. Nephrotoxicity of cisplatin was manifested by elevation in renal somatic index, proteinuria, blood urea nitrogen, creatinine in serum, lactate dehydrogenase, kidney malondialdehyde, NF-κB, Bax, and annexin V...
April 5, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28375162/the-protective-effect-of-apigenin-on-myocardial-injury-in-diabetic-rats-mediating-activation-of-the-ppar-%C3%AE-pathway
#8
Umesh B Mahajan, Govind Chandrayan, Chandragouda R Patil, Dharamvir Singh Arya, Kapil Suchal, Yogeeta O Agrawal, Shreesh Ojha, Sameer N Goyal
We substantiated the role of peroxisome proliferator-activated receptor-γ (PPAR-γ) activation in the protective effect of apigenin against the myocardial infarction (MI) in diabetic rats. Diabetes was induced by intraperitoneal administration of a single dose of streptozotocin (55 mg/kg). The study groups included diabetic rats receiving vehicle, apigenin (75 mg/kg/day, orally), GW9662 (1 mg/kg/day, intraperitoneally), and a combination of apigenin and GW9662 for 14 days. The MI was induced in all the study groups except the diabetic control group by subcutaneous injection of 100 mg/kg/day of isoproterenol on the two terminal days...
April 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28371311/low-glucose-concentrations-within-typical-industrial-operating-conditions-have-minimal-effect-on-the-transcriptome-of-recombinant-cho-cells
#9
Yogender Kumar Gowtham, Christopher A Saski, Sarah W Harcum
Typically, mammalian cell culture medium contains high glucose concentrations that are analogous to diabetic levels in humans, suggesting that mammalian cells are cultivated in excessive glucose. Using RNA-Seq, this study characterized the Chinese hamster ovary (CHO) cell transcriptome under two glucose concentrations to assess the genetic effects associated with metabolic pathways, in addition to other global responses. The initial extracellular glucose concentrations used represented high (30 mM) and low (10 mM) glucose conditions, where at the time the transcriptomes were compared, the glucose concentrations were approximately 24 and 4...
April 3, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28367926/association-of-dietary-flavonoid-intake-with-prevalence-of-type-2-diabetes-mellitus-and-cardiovascular-disease-risk-factors-in-korean-women-aged-%C3%A2-30-years
#10
Ji Soo Oh, Hyesook Kim, Aswathy Vijayakumar, Oran Kwon, Yangha Kim, Namsoo Chang
The purpose of this study was to investigate the association between dietary flavonoid intake and the prevalence of type 2 diabetes mellitus (T2DM) and cardiovascular disease (CVD) risk factors among Korean women aged ≥30 y. This study used data collected from the 2007-2012 Korean National Health and Nutrition Examination Survey. We excluded subjects who had energy intake <500 kcal or ≥5,000 kcal, were diagnosed with chronic disease, were taking medication, or were pregnant or lactating. The final subjects included 7,963 women, and they were divided into 2 groups, the normal fasting glucose (NFG) group (n=7,738) and the T2DM group (n=225)...
2017: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/28363742/liraglutide-relieves-myocardial-damage-by-promoting-autophagy-via-ampk-mtor-signaling-pathway-in-zucker-diabetic-fatty-rat
#11
Ya Zhang, Yuanna Ling, Li Yang, Yanzhen Cheng, Pingzhen Yang, Xudong Song, Huixiong Tang, Yongkang Zhong, Lu Tang, Shangfei He, Shuangli Yang, Aihua Chen, Xianbao Wang
Liraglutide, a glucose-lowering agent used to treat type 2 diabetic mellitus is reported to exert cardioprotective effects in clinical trials and animal experiments. However, the cardioprotective mechanism of liraglutide on diabetic cardiomyopathy has not been fully illustrated. The present study was performed to investigate whether liraglutide alleviates diabetic myocardium injury by promoting autophagy and its underlying mechanisms. Our results show that liraglutide significantly reduced the levels of creatine kinase (CK) and lactate dehydrogenase (LDH), improved left ventricular functional status and alleviated myocardial fibrosis in the Zucker diabetic fatty (ZDF) rat model...
March 29, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28350842/combination-of-mesenchymal-stem-cell-injection-with-icariin-for-the-treatment-of-diabetes-associated-erectile-dysfunction
#12
Xiyou Wang, Chuanhai Liu, Yong Xu, Ping Chen, Yue Shen, Yansheng Xu, Yubo Zhao, Weihao Chen, Xinyu Zhang, Yun Ouyang, Yi Wang, Changliang Xie, Maojun Zhou, Cuilong Liu
The present study was aimed to examine whether icariin, a traditional Chinese medicine, could improve therapeutic effects of adipose derived mesenchymal stem cells (ADSCs) for diabetes-associated erectile dysfunction (DMED). DMED were induced in rats by intraperitoneal injection of streptozotocin and confirmed by erectile function measurement. Then, rats of diabetic ED were randomly divided to receive the treatment of saline, ADSCs, icariin or ADSCs combined with icariin respectively. Compared with the treatment by ADSCs or icariin alone, intracavernosum injection of ADSCs combined with the following daily gastric gavage of icariin significantly augmented the value of ICP and ICP/MAP (p<0...
2017: PloS One
https://www.readbyqxmd.com/read/28336821/hyperbaric-oxygen-therapy-reduces-renal-lactate-production
#13
Thomas S Nørlinger, Per Mose Nielsen, Haiyun Qi, Emmeli Mikkelsen, Kasper Hansen, Nikolaj H Schmidt, Michael Pedersen, Peter Agger, Fredrik Palm, Christoffer Laustsen
Intrarenal hypoxia is an acknowledged factor contributing to the development of diabetic nephropathy. Hyperbaric oxygen (HBO) therapy is a well-known adjuvant treatment for several medical conditions, such as decompression sickness, infections, and wound healing. The underlying metabolic response of HBO is largely unknown. In this study, we investigated the effect of HBO on the intrarenal metabolic alteration in diabetes. Hyperpolarized [1-(13)C]pyruvate MRI was performed to assess intrarenal energy metabolism in normoglycemic controls and short-term (2 weeks) streptozotocin-induced diabetic rats with and without HBO for five consecutive days...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28336072/microneedle-enzyme-sensor-arrays-for-continuous-in-vivo-monitoring
#14
Anthony E G Cass, Sanjiv Sharma
Microneedle enzyme sensors by virtue of their minimally invasive and hence pain-free penetration of skin allow for the measurement of metabolites, biomarkers, and drugs in the interstitial fluid that bathes the dermal tissue. Such devices if they are to be adopted widely into clinical practice need to be capable of delivering reliable measurements over extended periods of time (days) and to be fabricated by low-cost, scalable methods. Using injection molding of the base structures in polycarbonate, metal film deposition by sputtering and enzyme immobilization by electrodeposition can meet these requirements...
2017: Methods in Enzymology
https://www.readbyqxmd.com/read/28334048/hepatoprotective-effect-of-sitagliptin-against-methotrexate-induced-liver-toxicity
#15
Hany M Abo-Haded, Mohamed A Elkablawy, Zeyad Al-Johani, Osama Al-Ahmadi, Dina S El-Agamy
Sitagliptin is selective dipeptidyl peptidase-4 inhibitor (DPP4-I), used clinically as a new oral anti-diabetic agent. This study explored the underlying mechanisms of the hepatoprotective role of sitagliptin pretreatment against methotrexate (MTX) induced hepatotoxicity in mice. Forty mice were divided into four groups (10 mice each); control, MTX, and two sitagliptin groups (pretreated with sitagliptin 10 and 20 mg/kg/day, respectively) for five consecutive days prior to MTX injection. Results showed that MTX induced marked hepatic injury in the form of cloudy swelling, hydropic degeneration, apoptosis and focal necrosis in all hepatic zones...
2017: PloS One
https://www.readbyqxmd.com/read/28326749/a-case-of-autoimmune-polyendocrine-syndrome-type-i-with-strong-positive-gad-antibody-titer-followed-up-with-glucose-tolerance-measured-by-oral-glucose-tolerance-test
#16
Rie Murakami, Toshihide Kawai, Shu Meguro, Matsuhiko Hayashi, Hiroshi Itoh
A 26-year-old Japanese woman presented with adrenal insufficiency, and treatment was started with cortisone and fludrocortisone in 1975. A few years later, she presented with hypoparathyroidism and was diagnosed with autoimmune polyendocrine syndrome type I (APS I), and treatment with calcium and alfacalcidol was started. She was found to have subacute thyroiditis and relative adrenal failure in 2006. Her condition remained stable under treatment with cortisone, fludrocortisone, levothyroxine, calcium lactate, precipitated calcium carbonate and alfacalcidol...
January 2017: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28325783/renal-handling-of-ketones-in-response-to-sodium-glucose-cotransporter-2-inhibition-in-patients-with-type-2-diabetes
#17
Ele Ferrannini, Simona Baldi, Silvia Frascerra, Brenno Astiarraga, Elisabetta Barsotti, Aldo Clerico, Elza Muscelli
OBJECTIVE: Pharmacologically induced glycosuria elicits adaptive responses in glucose homeostasis and hormone release, including decrements in plasma glucose and insulin levels, increments in glucagon release, enhanced lipolysis, and stimulation of ketogenesis, resulting in an increase in ketonemia. We aimed at assessing the renal response to these changes. RESEARCH DESIGN AND METHODS: We measured fasting and postmeal urinary excretion of glucose, β-hydroxybutyrate (β-HB), lactate, and sodium in 66 previously reported patients with type 2 diabetes and preserved renal function (estimated glomerular filtration rate ≥60 mL · min(-1) · 1...
March 21, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28317262/hydroxytyrosol-restores-proper-insulin-signaling-in-an-astrocytic-model-of-alzheimer-s-disease
#18
M Carmen Crespo, Joao Tomé-Carneiro, Cristina Pintado, Alberto Dávalos, Francesco Visioli, Emma Burgos-Ramos
Recent epidemiological evidence demonstrated that diabetes is a risk factor for AD onset and development. Indeed, meta-analyses of longitudinal epidemiologic studies show that diabetes increases AD risk by 50-100%, being insulin resistance (IR) the main binding link between diabetes and AD. Astrocytes are the foremost cerebral macroglial cells and are responsible for converting glucose into lactate and transfer it to neurons that use it as fuel, but Aβ(1-42) impairs insulin signaling and glycogen storage. Recent prospective studies showed that the Mediterranean diet is associated with lower incidence of AD...
March 20, 2017: BioFactors
https://www.readbyqxmd.com/read/28306564/psychopharmacological-treatment-of-schizophrenia-during-pregnancy-and-lactation
#19
Alexandra B Whitworth
PURPOSE OF REVIEW: It is necessary, in every-day clinical life when treating pregnant women with mental diseases, to reach quick decisions derived from recent comprehensive information. The knowledge of the use of antipsychotics in pregnancy has increased considerably in the last years. This review tries to summarize important considerations and facilitate clinical decisions. RECENT FINDINGS: This review will cover not only the effects of exposure during pregnancy on outcomes, postnatal adaption syndrome and lactation, but also pharmacokinetic considerations on the use of antipsychotics during pregnancy...
May 2017: Current Opinion in Psychiatry
https://www.readbyqxmd.com/read/28298922/interactions-between-ppar-gamma-and-the-canonical-wnt-beta-catenin-pathway-in-type-2-diabetes-and-colon-cancer
#20
REVIEW
Yves Lecarpentier, Victor Claes, Alexandre Vallée, Jean-Louis Hébert
In both colon cancer and type 2 diabetes, metabolic changes induced by upregulation of the Wnt/beta-catenin signaling and downregulation of peroxisome proliferator-activated receptor gamma (PPAR gamma) may help account for the frequent association of these two diseases. In both diseases, PPAR gamma is downregulated while the canonical Wnt/beta-catenin pathway is upregulated. In colon cancer, upregulation of the canonical Wnt system induces activation of pyruvate dehydrogenase kinase and deactivation of the pyruvate dehydrogenase complex...
2017: PPAR Research
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