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https://www.readbyqxmd.com/read/28101192/c-peptide-exhibits-a-late-induction-effect-on-matrix-metallopeptidase-9-in-high-glucose-stimulated-rat-mesangial-cells
#1
Junxia Wang, Yanning Li, Mingzhi Xu, Dandan Li, Yu Wang, Jinsheng Qi, Kunyu He
Insufficient matrix metalloproteinase (MMP)-9 and MMP-2 is considered to be a contributor of extracellular matrix (ECM) accumulation in diabetic nephropathy (DN). C-peptide can reverse fibrosis, thus exerting a beneficial effect on DN. Whether C-peptide induces MMP-9 and MMP-2 to reverse ECM accumulation is not clear. In the present study, in order to determine ECM metabolism, rat mesangial cells were treated with high glucose (HG) and C-peptide intervention, then the early and late effects of C-peptide on HG-affected MMP-9 and MMP-2 were evaluated...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28099913/zibupiyin-recipe-improves-cognitive-decline-by-regulating-gut-microbiota-in-zucker-diabetic-fatty-rats
#2
Chunyan Gu, Wen Zhou, Wang Wang, Hong Xiang, Huiying Xu, Lina Liang, Hua Sui, Libin Zhan, Xiaoguang Lu
Numerous researches supported that microbiota can influence behavior and modulate cognitive function through "microbiota-gut-brain" axis. Our previous study has demonstrated that ZiBuPiYin recipe (ZBPYR) possesses excellent pharmacological effects against diabetes-associated cognitive decline. To elucidate the role of ZBPYR in regulating the balance of gut microbiota to improve psychological-stress-induced diabetes-associated cognitive decline (PSDACD), we compared blood glucose, behavioral and cognitive functions and diversity of the bacterial community among experimental groups...
January 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28098811/aspalathin-protects-the-heart-against-hyperglycemia-induced-oxidative-damage-by-up-regulating-nrf2-expression
#3
Phiwayinkosi V Dludla, Christo J F Muller, Elizabeth Joubert, Johan Louw, M Faadiel Essop, Kwazi B Gabuza, Samira Ghoor, Barbara Huisamen, Rabia Johnson
Aspalathin (ASP) can protect H9c2 cardiomyocytes against high glucose (HG)-induced shifts in myocardial substrate preference, oxidative stress, and apoptosis. The protective mechanism of ASP remains unknown. However, as one of possible, it is well known that phytochemical flavonoids reduce oxidative stress via nuclear factor (erythroid-derived 2)-like 2 (Nrf2) activation resulting in up-regulation of antioxidant genes and enzymes. Therefore, we hypothesized that ASP protects the myocardium against HG- and hyperglycemia-induced oxidative damage by up-regulating Nrf2 expression in H9c2 cardiomyocytes and diabetic (db/db) mice, respectively...
January 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28097824/mechanisms-of-metabolic-memory-and-renal-hypoxia-as-a-therapeutic-target-in-diabetic-kidney-disease
#4
REVIEW
Yosuke Hirakawa, Tetsuhiro Tanaka, Masaomi Nangaku
Diabetic kidney disease (DKD) is a worldwide public health problem. The definition of DKD is being under discussion. Although the term DKD was originally defined as "kidney disease specific to diabetes", DKD frequently means chronic kidney disease (CKD) with diabetes mellitus and includes not only classical diabetic nephropathy, but also kidney dysfunction due to nephrosclerosis and other causes. Metabolic memory plays a crucial role in the progression of various complications of diabetes, including DKD. The mechanisms of metabolic memory in DKD are supposed to include advanced glycation end products, DNA methylation, histone modifications, and non-coding RNA including microRNA...
January 17, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28094765/selective-antagonism-of-muscarinic-receptors-is-neuroprotective-in-peripheral-neuropathy
#5
Nigel A Calcutt, Darrell R Smith, Katie Frizzi, Mohammad Golam Sabbir, Subir K Roy Chowdhury, Teresa Mixcoatl-Zecuatl, Ali Saleh, Nabeel Muttalib, Randy Van der Ploeg, Joseline Ochoa, Allison Gopaul, Lori Tessler, Jürgen Wess, Corinne G Jolivalt, Paul Fernyhough
Sensory neurons have the capacity to produce, release, and respond to acetylcholine (ACh), but the functional role of cholinergic systems in adult mammalian peripheral sensory nerves has not been established. Here, we have reported that neurite outgrowth from adult sensory neurons that were maintained under subsaturating neurotrophic factor conditions operates under cholinergic constraint that is mediated by muscarinic receptor-dependent regulation of mitochondrial function via AMPK. Sensory neurons from mice lacking the muscarinic ACh type 1 receptor (M1R) exhibited enhanced neurite outgrowth, confirming the role of M1R in tonic suppression of axonal plasticity...
January 17, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28093175/re-treatment-of-diabetes-mellitus-induced-erectile-dysfunction-using-endothelial-progenitor-cells-genetically-modified-with-human-telomerase-reverse-transcriptase
#6
https://www.readbyqxmd.com/read/28088172/ecotilling-by-sequencing-reveals-polymorphisms-in-genes-encoding-starch-synthases-that-are-associated-with-low-glycemic-response-in-rice
#7
Ramadoss Bharathi Raja, Somanath Agasimani, Sarita Jaiswal, Venkatesan Thiruvengadam, Robin Sabariappan, Ravindra N Chibbar, Sundaram Ganesh Ram
BACKGROUND: Glycemic response, a trait that is tedious to be assayed in cereal staples, has been identified as a factor correlated with alarmingly increasing prevalence of Type II diabetes. Reverse genetics based discovery of allelic variants associated with this nutritional trait gains significance as they can provide scope for genetic improvement of this factor which is otherwise difficult to target through routine screening methods. RESULTS: Through EcoTILLING by sequencing in 512 rice accessions, we report the discovery of six deleterious variants in the genes with potential to increase Resistant Starch (RS) and reduce Hydrolysis Index (HI) of starch...
January 14, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28078385/glucose-and-fatty-acids-synergistically-and-reversibly-promote-beta-cell-proliferation-in-rats
#8
Valentine S Moullé, Kevin Vivot, Caroline Tremblay, Bader Zarrouki, Julien Ghislain, Vincent Poitout
AIMS/HYPOTHESIS: The mechanisms underlying pancreatic islet mass expansion have attracted considerable interest as potential therapeutic targets to prevent or delay the onset of type 2 diabetes. While several factors promoting beta cell proliferation have been identified, in the context of nutrient excess the roles of glucose or NEFA in relation to insulin resistance remain unclear. Here we tested the hypothesis that glucose and NEFA synergistically and reversibly promote beta cell proliferation in the context of nutrient-induced insulin resistance...
January 11, 2017: Diabetologia
https://www.readbyqxmd.com/read/28078254/achyranthes-japonica-nakai-water-extract-suppresses-binding-of-ige-antibody-to-cell-surface-fc%C3%A9-ri
#9
Sun Yup Shim, Mina Lee, Kyung Dong Lee
Achyranthes japonica Nakai (AJN) water extract has a variety of physiological properties, including anti-diabetic, anti-cancer, anti-inflammatory, anti-microbial, and anti-oxidative activities. In the present study, the inhibitory effects of AJN extract were investigated in high affinity immunoglobulin E receptor (FcɛRI)-mediated KU812F cells activation. AJN extract showed suppressive effects on histamine release and intracellular calcium [Ca(2+)]i elevation from anti-FcɛRI antibody (CRA-1)-stimulated cells in a dose-dependent manner...
December 2016: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/28077677/pharmacological-rescue-of-diabetic-skeletal-stem-cell-niches
#10
Ruth Tevlin, Eun Young Seo, Owen Marecic, Adrian McArdle, Xinming Tong, Bryan Zimdahl, Andrey Malkovskiy, Rahul Sinha, Gunsagar Gulati, Xiyan Li, Taylor Wearda, Rachel Morganti, Michael Lopez, Ryan C Ransom, Christopher R Duldulao, Melanie Rodrigues, Allison Nguyen, Michael Januszyk, Zeshaan Maan, Kevin Paik, Kshemendra-Senarath Yapa, Jayakumar Rajadas, Derrick C Wan, Geoffrey C Gurtner, Michael Snyder, Philip A Beachy, Fan Yang, Stuart B Goodman, Irving L Weissman, Charles K F Chan, Michael T Longaker
Diabetes mellitus (DM) is a metabolic disease frequently associated with impaired bone healing. Despite its increasing prevalence worldwide, the molecular etiology of DM-linked skeletal complications remains poorly defined. Using advanced stem cell characterization techniques, we analyzed intrinsic and extrinsic determinants of mouse skeletal stem cell (mSSC) function to identify specific mSSC niche-related abnormalities that could impair skeletal repair in diabetic (Db) mice. We discovered that high serum concentrations of tumor necrosis factor-α directly repressed the expression of Indian hedgehog (Ihh) in mSSCs and in their downstream skeletogenic progenitors in Db mice...
January 11, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28077072/diabetes-mellitus-medication-use-and-catastrophic-healthcare-expenditure-among-adults-aged-50-years-in-china-and-india-results-from-the-who-study-on-global-ageing-and-adult-health-sage
#11
Shingai Douglas Gwatidzo, Jennifer Stewart Williams
BACKGROUND: Expenditure on medications for highly prevalent chronic conditions such as diabetes mellitus (DM) can result in financial impoverishment. People in developing countries and in low socioeconomic status groups are particularly vulnerable. China and India currently hold the world's two largest DM populations. Both countries are ageing and undergoing rapid economic development, urbanisation and social change. This paper assesses the determinants of DM medication use and catastrophic expenditure on medications in older adults with DM in China and India...
January 11, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28075092/diabetes-mellitus-management-of-gastrointestinal-complications
#12
Beth Careyva, Brian Stello
Gastrointestinal disorders are common complications of diabetes mellitus and include gastroparesis, nonalcoholic fatty liver disease, gastroesophageal reflux disease, and chronic diarrhea. Symptoms of gastroparesis include early satiety, postprandial fullness, nausea, vomiting of undigested food, bloating, and abdominal pain. Gastroparesis is diagnosed based on clinical symptoms and a delay in gastric emptying in the absence of mechanical obstruction. Gastric emptying scintigraphy is the preferred diagnostic test...
December 15, 2016: American Family Physician
https://www.readbyqxmd.com/read/28069865/interleukin-22-restored-mitochondrial-damage-and-impaired-glucose-stimulated-insulin-secretion-through-down-regulation-of-uncoupling-protein-2-in-ins-1-cells
#13
Minling Hu, Hanxiao Lin, Li Yang, Yanzhen Cheng, Hua Zhang
Defective glucose-stimulated insulin secretion (GSIS) induced by chronic exposure to fatty acids is a hallmark of type 2 diabetes (T2D). Interleukin-22 (IL-22) has been shown to exert beneficial effects on insulin secretion and to protect pancreatic β-cells from stress. Moreover, uncoupling protein-2 (UCP-2) plays a central role in the regulation of GSIS and β-cell dysfunction, whereas the role of UCP-2 in IL-22-enhanced glycemic control under conditions of lipotoxicity remains unclear. In this present study, we investigated the effects of IL-22 on rat insulin-secreting cells (INS-1 cells) and the mechanisms that underlie IL-22 and lipotoxicity-impaired GSIS in vitro...
January 7, 2017: Journal of Biochemistry
https://www.readbyqxmd.com/read/28067255/serelaxin-treatment-reverses-vascular-dysfunction-and-left-ventricular-hypertrophy-in-a-mouse-model-of-type-1-diabetes
#14
Hooi Hooi Ng, Chen Huei Leo, Darnel Prakoso, Chengxue Qin, Rebecca H Ritchie, Laura J Parry
Serelaxin prevents endothelial dysfunction in the mouse aorta ex vivo and inhibits apoptosis in cardiomyocytes under acute hyperglycaemia. Less is known about the effects of serelaxin in an in vivo mouse model of diabetes. Therefore, we tested the hypothesis in streptozotocin (STZ)-treated mice that serelaxin is able to reverse diabetes-induced vascular dysfunction and cardiac remodelling. Mice were divided into citrate buffer + placebo, STZ + placebo and STZ + serelaxin (0.5 mg/kg/d, 2 weeks) groups...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28067098/glycated-albumin-modifies-platelet-adhesion-and-aggregation-responses
#15
Ioana Soaita, Wei Yin, David A Rubenstein
A diabetic vasculature is detrimental to cardiovascular health through the actions of advanced glycation end products (AGEs) on endothelial cells and platelets. Platelets activated by AGEs agonize endothelial responses promoting cardiovascular disease (CVD) development. While it has been established that AGEs can alter platelet functions, little is known about the specific platelet pathways that AGEs modify. Therefore, we evaluated the effects of AGEs on specific salient platelet pathways related to CVDs and whether the effects that AGEs elicit are dependent on glycation extent...
January 9, 2017: Platelets
https://www.readbyqxmd.com/read/28065232/establishment-of-an-alloxan-induced-diabetes-model-in-daphnia-pulex
#16
An-Min Hu, Tao Zhu, Ye Jiang, Li Dong, Hong Gao, Gui-Zhi DU
Objective To establish a Daphnia model of alloxan-induced diabetes. Methods Daphnia were exposed to three different concentrations of alloxan (3, 5, and 10 mmol/L) for 30 minutes. Blood glucose and survival rate were recorded for 72 hours after alloxan insult. Sequence analysis and phylogenetic inference for glucose transporters (GLUT) were clustered with the maximum-likelihood method. Using reverse transcription and quantitative polymerase chain reaction techniques, we investigated the transcriptional changes of GLUT at 12 hours after alloxan (5 mmol/L) exposure...
December 20, 2016: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28064215/pathophysiological-mechanisms-of-renal-fibrosis-a-review-of-animal-models-and-therapeutic-strategies
#17
REVIEW
António Nogueira, Maria João Pires, Paula Alexandra Oliveira
Chronic kidney disease (CKD) is a long-term condition in which the kidneys do not work correctly. It has a high prevalence and represents a serious hazard to human health and estimated to affects hundreds of millions of people. Diabetes and hypertension are the two principal causes of CKD. The progression of CKD is characterized by the loss of renal cells and their replacement by extracellular matrix (ECM), independently of the associated disease. Thus, one of the consequences of CKD is glomerulosclerosis and tubulointerstitial fibrosis caused by an imbalance between excessive synthesis and reduced breakdown of the ECM...
January 2017: In Vivo
https://www.readbyqxmd.com/read/28063511/tiny-molecule-big-power-multi-target-approach-for-curcumin-in-diabetic-cardiomyopathy
#18
REVIEW
Vengadeshprabhu Karuppagounder, Somasundaram Arumugam, Vijayasree V Giridharan, Remya Sreedhar, Rajendran J C Bose, Jyothi Vanama, Suresh S Palaniyandi, Tetsuya Konishi, Kenichi Watanabe, Rajarajan A Thandavarayan
Diabetic cardiomyopathy (DCM) is described as impaired cardiac diastolic and systolic functions. Diabetes mellitus (DM), a related cardiovascular disease, has become one of the major causes of death in DM patients. Mortality in these diseases is 2 to 3 times higher than in non-DM patients with cardiovascular disease. The progression of DCM and the cellular and molecular perturbations associated with the pathogenesis are complex and multifactorial. Although considerable progress has been achieved, the molecular etiologies of DCM remain poorly understood...
February 2017: Nutrition
https://www.readbyqxmd.com/read/28061324/oral-corticosterone-administration-reduces-insulitis-but-promotes-insulin-resistance-and-hyperglycemia-in-male-nonobese-diabetic-mice
#19
Susan J Burke, Heidi M Batdorf, Adrianna E Eder, Michael D Karlstad, David H Burk, Robert C Noland, Z Elizabeth Floyd, J Jason Collier
Steroid-induced diabetes is the most common form of drug-induced hyperglycemia. Therefore, metabolic and immunological alterations associated with chronic oral corticosterone were investigated using male nonobese diabetic mice. Three weeks after corticosterone delivery, there was reduced sensitivity to insulin action measured by insulin tolerance test. Body composition measurements revealed increased fat mass and decreased lean mass. Overt hyperglycemia (>250 mg/dL) manifested 6 weeks after the start of glucocorticoid administration, whereas 100% of the mice receiving the vehicle control remained normoglycemic...
January 4, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28060934/a-cohort-study-of-adult-patients-with-severe-dengue-in-taiwanese-intensive-care-units-the-elderly-and-aptt-prolongation-matter-for-prognosis
#20
Chih-Cheng Hsieh, Cong-Tat Cia, Jen-Chieh Lee, Junne-Ming Sung, Nan-Yao Lee, Po-Lin Chen, Te-Hui Kuo, Jo-Yen Chao, Wen-Chien Ko
BACKGROUND: There was a large dengue outbreak in Taiwan in 2015, in which the ages of the affected individuals were higher than those in other countries. The aim of this study was to explore the characteristics and prognostic factors for adults with severe dengue in intensive care units (ICUs). METHODS: All adults admitted to ICUs with dengue virus infection (DENV) at a medical center from July 1, 2015 to December 31, 2015 were enrolled. DENV was diagnosed by the presence of serum NS1 antigen, IgM antibodies to dengue virus, or dengue virus RNA by real-time reverse transcriptase polymerase chain reaction...
January 6, 2017: PLoS Neglected Tropical Diseases
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