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Succinate diabetes

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https://www.readbyqxmd.com/read/28738167/methylene-blue-improves-mitochondrial-respiration-and-decreases-oxidative-stress-in-a-substrate-dependent-manner-in-diabetic-rat-hearts
#1
Oana M Duicu, Andreea Privistirescu, Adrian Wolf, Alexandra Petrus, Maria D Dănilă, Corina Ratiu, Danina M Muntean, Adrian Sturza
Diabetic cardiomyopathy has been systematically associated with compromised mitochondrial energetics and increased generation of reactive oxygen species (ROS) that underlie its progression to heart failure. Methylene blue is a redox-drug with reported protective effects mainly on brain mitochondria. The present study was purported to characterize the effects of acute administration of methylene blue on mitochondrial respiration, H2O2 production, and calcium sensitivity in rat heart mitochondria isolated from healthy and 2 months (streptozotocin-induced) diabetic rats...
July 24, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28638031/-anxiolytic-and-antidepressant-effects-of-emoxipine-reamberin-and-mexidol-in-experimental-diabetes-mellitus
#2
I A Volchegorskii, I Yu Miroshnichenko, L M Rassokhina, R M Faizullin, K E Pryakhina
AIM: To perform a comparative study of anxiolytic and antidepressant effects of derivatives of 3-oxypyridine and succinic acid (emoxipine, reamberin and mexidol) in experimental diabetes mellitus. MATERIAL AND METHODS: An effect of emoxipine, reamberin and mexidol on manifestations of anxiety in 'elevated plus maze' (EPM) and duration of 'desperate behavior' (DB) in Porsolt test in rats with alloxan diabetes during medication course was studied. Alpha-lipoic (thioctic) acid (α-LA) was used as a reference drug...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28626178/hypoglycemic-coma-induced-by-the-use-of-succinic-acid-cibenzoline-in-frail-late-stage-elderly-subjects
#3
Yurie Hirata, Shinji Kamei, Fuminori Tatsumi, Masashi Shimoda, Akihito Tanabe, Junpei Sanada, Yoshiro Fushimi, Shintaro Irie, Tomoatsu Mune, Kohei Kaku, Hideaki Kaneto
Succinic acid cibenzoline (CZ) is an antiarrhythmic agent often used for the treatment of tachyarrhythmia. However, hypoglycemia should be avoided in the treatment of diabetes. We herein report two late-stage elderly subjects who experienced a severe and prolonged hypoglycemic coma after the usage of CZ. These cases suggest that, when CZ is administered to elderly subjects with renal dysfunction and/or frailty, we should be aware of the possibility that this medicine may induce hypoglycemia and should adjust the dose as appropriate and monitor the concentration of CZ to avoid severe hypoglycemia...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28617536/effects-of-mulberry-leaf-polysaccharide-on-oxidative-stress-in-pancreatic-%C3%AE-cells-of-type-2-diabetic-rats
#4
C-G Liu, Y-P Ma, X-J Zhang
OBJECTIVE: To explore and discuss the effects and mechanisms of mulberry leaf polysaccharide (MLP) on oxidative stress in pancreatic β-cells of type 2 diabetic rats. MATERIALS AND METHODS: The model of diabetic rats was established by inducing the Sprague-Dawley (SD) rats with high-sugar and high-fat diet for 6 weeks and then giving them streptozotocin (STZ) by single intraperitoneal injection. The mulberry leaf polysaccharide was administered via gavage daily for 8 weeks, and the tissue morphology was observed through electron microscopy...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28593900/phellinus-rimosus-improves-mitochondrial-energy-status-and-attenuates-nephrotoxicity-in-diabetic-rats
#5
K A Rony, T A Ajith, Tony A Kuttikadan, R Blaze, K K Janardhanan
BACKGROUND: Mitochondrial dysfunction and increase in reactive oxygen species during diabetes can lead to pathological consequences in kidneys. The present study was aimed to investigate the effect of Phellinus rimosus in the streptozotocin (STZ)-induced diabetic rat renal mitochondria and the possible mechanism of protection. METHODS: Phellinus rimosus (50 and 250 mg/kg, p.o) was treated after inducing diabetes by STZ (45 mg/kg, i.p) in rats. The serum samples were subjected to creatinine and urea estimation...
April 7, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/28561074/succinate-and-its-g-protein-coupled-receptor-stimulates-osteoclastogenesis
#6
Yuqi Guo, Chengzhi Xie, Xiyan Li, Jian Yang, Tao Yu, Ruohan Zhang, Tianqing Zhang, Deepak Saxena, Michael Snyder, Yingjie Wu, Xin Li
The mechanism underlying bone impairment in patients with diabetes mellitus, a metabolic disorder characterized by chronic hyperglycaemia and dysregulation in metabolism, is unclear. Here we show the difference in the metabolomics of bone marrow stromal cells (BMSCs) derived from hyperglycaemic (type 2 diabetes mellitus, T2D) and normoglycaemic mice. One hundred and forty-two metabolites are substantially regulated in BMSCs from T2D mice, with the tricarboxylic acid (TCA) cycle being one of the primary metabolic pathways impaired by hyperglycaemia...
May 31, 2017: Nature Communications
https://www.readbyqxmd.com/read/28539261/g-protein-coupled-receptor-91-signaling-in-diabetic-retinopathy-and-hypoxic-retinal-diseases
#7
Jianyan Hu, Tingting Li, Xinhua Du, Qiang Wu, Yun-Zheng Le
G protein-coupled receptor 91 (GPR91) is a succinate-specific receptor and activation of GPR91 could initiate a complex signal transduction cascade and upregulate inflammatory and pro-angiogenic cytokines. In the retina, GPR91 is predominately expressed in ganglion cells, a major cellular entity involved in the pathogenesis of diabetic retinopathy (DR) and other hypoxic retinal diseases. During the development of DR and retinopathy of prematurity (ROP), chronic hypoxia causes an increase in the levels of local succinate...
May 21, 2017: Vision Research
https://www.readbyqxmd.com/read/28438610/hyperglycemia-increases-interstitial-cells-of-cajal-via-mapk1-and-mapk3-signaling-to-etv1-and-kit-leading-to-rapid-gastric-emptying
#8
Yujiro Hayashi, Yoshitaka Toyomasu, Siva Arumugam Saravanaperumal, Michael R Bardsley, John A Smestad, Andrea Lorincz, Seth T Eisenman, Gianluca Cipriani, Molly H Nelson Holte, Fatimah J Al Khazal, Sabriya A Syed, Gabriella B Gajdos, Kyoung Moo Choi, Gary J Stoltz, Katie E Miller, Michael L Kendrick, Brian P Rubin, Simon J Gibbons, Adil E Bharucha, David R Linden, Louis James Maher, Gianrico Farrugia, Tamas Ordog
BACKGROUND & AIMS: Depletion of interstitial cells of Cajal (ICCs) is common in diabetic gastroparesis. However, in approximately 20% of patients with diabetes, gastric emptying (GE) is accelerated. GE also occurs faster in obese individuals, and is associated with increased blood levels of glucose in patients with type 2 diabetes. To understand the fate of ICCs in hyperinsulinemic, hyperglycemic states characterized by rapid GE, we studied mice with mutation of the leptin receptor (Lepr(db/db)), which in our colony had accelerated GE...
August 2017: Gastroenterology
https://www.readbyqxmd.com/read/28382382/sucnr1-mediated-chemotaxis-of-macrophages-aggravates-obesity-induced-inflammation-and-diabetes
#9
Janna A van Diepen, Joris H Robben, Guido J Hooiveld, Claudia Carmone, Mohammad Alsady, Lily Boutens, Melissa Bekkenkamp-Grovenstein, Anneke Hijmans, Udo F H Engelke, Ron A Wevers, Mihai G Netea, Cees J Tack, Rinke Stienstra, Peter M T Deen
AIMS/HYPOTHESIS: Obesity induces macrophages to drive inflammation in adipose tissue, a crucial step towards the development of type 2 diabetes. The tricarboxylic acid (TCA) cycle intermediate succinate is released from cells under metabolic stress and has recently emerged as a metabolic signal induced by proinflammatory stimuli. We therefore investigated whether succinate receptor 1 (SUCNR1) could play a role in the development of adipose tissue inflammation and type 2 diabetes. METHODS: Succinate levels were determined in human plasma samples from individuals with type 2 diabetes and non-diabetic participants...
July 2017: Diabetologia
https://www.readbyqxmd.com/read/28376661/succination-of-protein-disulfide-isomerase-links-mitochondrial-stress-and-endoplasmic-reticulum-stress-in-the-adipocyte-during-diabetes
#10
Allison M Manuel, Michael D Walla, Adam Faccenda, Stephanie L Martin, Ross M Tanis, Gerardo G Piroli, Julie Adam, Boris Kantor, Bulent Mutus, Danyelle M Townsend, Norma Frizzell
AIMS: Protein succination by fumarate increases in the adipose tissue of diabetic mice and in adipocytes matured in high glucose as a result of glucotoxicity-driven mitochondrial stress. The endoplasmic reticulum (ER) oxidoreductase protein disulfide isomerase (PDI) is succinated in adipocytes that are matured in high glucose, and in this study we investigated whether succination would alter PDI oxidoreductase activity, directly linking mitochondrial stress and ER stress. RESULTS: Protein succination and the ER stress marker C/EBP homologous protein (CHOP) were diminished after pharmaceutical targeting of mitochondrial stress with the chemical uncoupler niclosamide in adipocytes matured in high-glucose concentrations...
May 19, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28280902/ginsenoside-rg5-attenuates-hepatic-glucagon-response-via-suppression-of-succinate-associated-hif-1%C3%AE-induction-in-hfd-fed-mice
#11
Na Xiao, Meng-Die Lou, Yi-Tong Lu, Le-Le Yang, Qun Liu, Baolin Liu, Lian-Wen Qi, Ping Li
AIMS/HYPOTHESIS: Ginsenosides regulate glucose homeostasis. This study investigated the effect of ginsenoside Rg5 (Rg5) on the hepatic glucagon response, focusing on the regulation of metabolism. METHODS: Mice fed a high-fat diet (HFD) showed increased hepatic glucose production (HGP). We observed the effects of Rg5 on hepatic fatty acid oxidation and glucagon response. The regulation of phosphodiesterase (PDE) 4B by succinate was also investigated in hepatocytes...
March 9, 2017: Diabetologia
https://www.readbyqxmd.com/read/28253314/mangiferin-protects-against-adverse-skeletal-muscle-changes-and-enhances-muscle-oxidative-capacity-in-obese-rats
#12
Luz M Acevedo, Ana I Raya, Julio M Martínez-Moreno, Escolástico Aguilera-Tejero, José-Luis L Rivero
Obesity-related skeletal muscle changes include muscle atrophy, slow-to-fast fiber-type transformation, and impaired mitochondrial oxidative capacity. These changes relate with increased risk of insulin resistance. Mangiferin, the major component of the plant Mangifera indica, is a well-known anti-inflammatory, anti-diabetic, and antihyperlipidemic agent. This study tested the hypothesis that mangiferin treatment counteracts obesity-induced fiber atrophy and slow-to-fast fiber transition, and favors an oxidative phenotype in skeletal muscle of obese rats...
2017: PloS One
https://www.readbyqxmd.com/read/28070703/nmr-based-metabolomics-reveals-brain-region-specific-metabolic-alterations-in-streptozotocin-induced-diabetic-rats-with-cognitive-dysfunction
#13
Hong Zheng, Qiuting Lin, Dan Wang, Pengtao Xu, Liangcai Zhao, Wenyi Hu, Guanghui Bai, Zhihan Yan, Hongchang Gao
Diabetes mellitus (DM) can result in cognitive dysfunction, but its potential metabolic mechanisms remain unclear. In the present study, we analyzed the metabolite profiling in eight different brain regions of the normal rats and the streptozotocin (STZ)-induced diabetic rats accompanied by cognitive dysfunction using a (1)H NMR-based metabolomic approach. A mixed linear model analysis was performed to assess the effects of DM, brain region and their interaction on metabolic changes. We found that different brain regions in rats displayed significant metabolic differences...
April 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28044282/are-prepubertal-children-metabolically-comparable-to-well-trained-adult-endurance-athletes
#14
REVIEW
Sébastien Ratel, Anthony J Blazevich
It is well acknowledged that prepubertal children have smaller body dimensions and a poorer mechanical (movement) efficiency, and thus a lower work capacity than adults. However, the scientific evidence indicates that prepubertal children have a greater net contribution of energy derived from aerobic metabolism in exercising muscle and reduced susceptibility to muscular fatigue, which makes them metabolically comparable to well-trained adult endurance athletes. For example, the relative energy contribution from oxidative and non-oxidative (i...
August 2017: Sports Medicine
https://www.readbyqxmd.com/read/27866845/untargeted-serum-metabolomics-reveals-fu-zhu-jiang-tang-tablet-and-its-optimal-combination-improve-an-impaired-glucose-and-lipid-metabolism-in-type-ii-diabetic-rats
#15
Yi Tao, Xi Chen, Hao Cai, Weidong Li, Baochang Cai, Chuan Chai, Liuqing Di, Liyun Shi, Lihong Hu
Fu-Zhu-Jiang-Tang tablet, a six-herb preparation, was proved to show beneficial effects on type II diabetes patients in clinical. This study aims to optimize the component proportion of the six-herb preparation and explore the serum metabolic signatures of type II diabetes rats after treatment with Fu-Zhu-Jiang-Tang tablet and its optimal combination. The component proportion of the preparation was optimized using uniform experimental design and machine learning techniques. Untargeted GC-MS metabolomic experiments were carried out with serum samples from model group and treatment groups...
January 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/27816519/cognitive-decline-in-type-2-diabetic-db-db-mice-may-be-associated-with-brain-region-specific-metabolic-disorders
#16
Hong Zheng, Yongquan Zheng, Liangcai Zhao, Minjiang Chen, Guanghui Bai, Yongsheng Hu, Wenyi Hu, Zhihan Yan, Hongchang Gao
Type 2 diabetes has been associated with cognitive decline, but its metabolic mechanism remains unclear. In the present study, we attempted to investigate brain region-specific metabolic changes in db/db mice with cognitive decline and explore the potential metabolic mechanism linking type 2 diabetes and cognitive decline. We analyzed the metabolic changes in seven brain regions of two types of mice (wild-type mice and db/db mice with cognitive decline) using a (1)H NMR-based metabolomic approach. Then, a mixed-model analysis was used to evaluate the effects of mice type, brain region, and their interaction on metabolic changes...
January 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27716393/topological-analysis-of-metabolic-networks-integrating-co-segregating-transcriptomes-and-metabolomes-in-type-2-diabetic-rat-congenic-series
#17
Marc-Emmanuel Dumas, Céline Domange, Sophie Calderari, Andrea Rodríguez Martínez, Rafael Ayala, Steven P Wilder, Nicolas Suárez-Zamorano, Stephan C Collins, Robert H Wallis, Quan Gu, Yulan Wang, Christophe Hue, Georg W Otto, Karène Argoud, Vincent Navratil, Steve C Mitchell, John C Lindon, Elaine Holmes, Jean-Baptiste Cazier, Jeremy K Nicholson, Dominique Gauguier
BACKGROUND: The genetic regulation of metabolic phenotypes (i.e., metabotypes) in type 2 diabetes mellitus occurs through complex organ-specific cellular mechanisms and networks contributing to impaired insulin secretion and insulin resistance. Genome-wide gene expression profiling systems can dissect the genetic contributions to metabolome and transcriptome regulations. The integrative analysis of multiple gene expression traits and metabolic phenotypes (i.e., metabotypes) together with their underlying genetic regulation remains a challenge...
September 30, 2016: Genome Medicine
https://www.readbyqxmd.com/read/27687638/structure-and-function-of-anhydride-modified-forms-of-human-insulin-in-silico-in-vitro-and-in-vivo-studies
#18
Maryam Chinisaz, Azadeh Ebrahim-Habibi, Ahmad-Reza Dehpour, Parichehreh Yaghmaei, Kazem Parivar, Ali Akbar Moosavi-Movahedi
Insulin is a therapeutic protein whose amyloid formation is reported in diabetic patients. Four anhydride compounds were used in the current study in order to experiment their potential reducing effect on insulin propensity to form amyloid fibrils. The modified forms (obtained with succinic-, 3,3-dimethylglutaric, 2-phenylglutaric-, and (2-Dodecen-1-yl) succinic anhydride), were first characterized with regard to melting temperature (Tm), changes in secondary structure percentage and hydrophobic surface. Fibril formation was then assessed by Congo red absorbance kinetics and transmission electron microscopy...
January 1, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27558314/impaired-utilization-of-membrane-potential-by-complex-ii-energized-mitochondria-of-obese-diabetic-mice-assessed-using-adp-recycling-methodology
#19
Brian D Fink, Fan Bai, Liping Yu, William I Sivitz
Recently, we used an ADP recycling approach to examine mouse skeletal muscle (SkM) mitochondrial function over respiratory states intermittent between state 3 and 4. We showed that respiration energized at complex II by succinate, in the presence of rotenone to block complex I, progressively increased with incremental additions of ADP. However, in the absence of rotenone, respiration peaked at low [ADP] but then dropped markedly as [ADP] was further increased. Here, we tested the hypothesis that these respiratory dynamics would differ between mitochondria of mice fed high-fat (HF) and treated with a low dose of streptozotocin to mimic type 2 diabetes and mitochondria from controls...
August 24, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27517894/anti-diabetic-activity-and-metabolic-changes-induced-by-andrographis-paniculata-plant-extract-in-obese-diabetic-rats
#20
Muhammad Tayyab Akhtar, Mohamad Syakir Bin Mohd Sarib, Intan Safinar Ismail, Faridah Abas, Amin Ismail, Nordin Hj Lajis, Khozirah Shaari
Andrographis paniculata is an annual herb and widely cultivated in Southeast Asian countries for its medicinal use. In recent investigations, A. paniculata was found to be effective against Type 1 diabetes mellitus (Type 1 DM). Here, we used a non-genetic out-bred Sprague-Dawley rat model to test the antidiabetic activity of A. paniculata against Type 2 diabetes mellitus (Type 2 DM). Proton Nuclear Magnetic Resonance (¹H-NMR) spectroscopy in combination with multivariate data analyses was used to evaluate the A...
August 9, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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