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Nicotinamide AND diabetes

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https://www.readbyqxmd.com/read/28229631/targeting-heme-oxygenase-1-in-early-diabetic-nephropathy-in-streptozotocin-induced-diabetic-rats
#1
R Abo El Gheit, M N Emam
Diabetic nephropathy (DN) is one of the most common microvascular diabetic complications. This study was designed to evaluate the possible protective effect and underlying mechanisms of HO-1 induction in streptozotocin (STZ)-induced early DN in rats. The diabetic rats were divided into three groups: STZ-diabetic, cobalt protoporphyrin (CoPP)-treated diabetic, and zinc protoporphyrin IX (ZnPP)-treated diabetic groups. Compared to the STZ-diabetic group, CoPP-induced HO-1 upregulation improved the diabetic state and renal functional parameters, suppressed the renal proinflammatory marker, NF-κB, abrogated the elevated renal hydroxyprolin, and decreased the enhanced renal nicotinamide adenine dinucleotide phosphate oxidase activity with parallel reduction of urinary oxidative stress markers...
December 2016: Physiol Int
https://www.readbyqxmd.com/read/28222394/pancreatoprotective-effects-of-geniotrigona-thoracica-stingless-bee-honey-in-streptozotocin-nicotinamide-induced-male-diabetic-rats
#2
Muhammad Shakir Abdul Aziz, Nelli Giribabu, Pasupuleti Visweswara Rao, Naguib Salleh
: Stingless bee honey (SLBH) has been claimed to possess multiple health benefits. Its anti-diabetic properties are however unknown. In this study, ability of SLBH from Geniotrigona thoracica stingless bee species in ameliorating pancreatic damage and in maintaining metabolic profiles were investigated in diabetic condition. METHODS: SLBH at 1 and 2g/kg/b.w. was given orally to streptozotocin (STZ)-nicotinamide-induced male diabetic rats for 28days. Metabolic parameters (fasting blood glucose-FBG and lipid profiles-LP and serum insulin) were measured by biochemical assays...
February 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28209797/roles-of-vascular-oxidative-stress-and-nitric-oxide-in-the-pathogenesis-of-atherosclerosis
#3
REVIEW
Ulrich Förstermann, Ning Xia, Huige Li
Major reactive oxygen species (ROS)-producing systems in vascular wall include NADPH (reduced form of nicotinamide adenine dinucleotide phosphate) oxidase, xanthine oxidase, the mitochondrial electron transport chain, and uncoupled endothelial nitric oxide (NO) synthase. ROS at moderate concentrations have important signaling roles under physiological conditions. Excessive or sustained ROS production, however, when exceeding the available antioxidant defense systems, leads to oxidative stress. Animal studies have provided compelling evidence demonstrating the roles of vascular oxidative stress and NO in atherosclerosis...
February 17, 2017: Circulation Research
https://www.readbyqxmd.com/read/28192880/ameliorating-effect-of-betanin-a-natural-chromoalkaloid-by-modulating-hepatic-carbohydrate-metabolic-enzyme-activities-and-glycogen-content-in-streptozotocin-nicotinamide-induced-experimental-rats
#4
Indumathi Dhananjayan, Sujithra Kathiroli, Srinivasan Subramani, Vinothkumar Veerasamy
Betanin, a chromoalkaloid of beetroot, has shown significant biological effects of antioxidants, anti-inflammatory and anticarcinogenic activities. So, we attempted to determine whether betanin (a natural pigment) would be protective against hyperglycemia in streptozotocin (STZ) - nicotinamide (NA) induced diabetic rats. Rats were injected with STZ (40mg/kgb.w.) 15 mins after the administration of NA (110mg/kgb.w.) by intraperitonially (i.p.) 30days for the induction of experimental diabetes mellitus. After 72h diabetic rats were treated with betanin orally at a doses of 10, 20 and 40mg/kg b...
February 7, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28174167/serum-n1-methylnicotinamide-is-associated-with-coronary-artery-disease-in-chinese-patients
#5
Ming Liu, Jihong Chu, Yang Gu, Haibo Shi, Rusheng Zhang, Lingzhun Wang, Jiandong Chen, Le Shen, Peng Yu, Xiaohu Chen, Wenzheng Ju, Zhenxing Wang
BACKGROUND: We previously reported that serum N(1)-methylnicotinamide (me-Nam), an indicator of nicotinamide N-methyltransferase activity, is associated with obesity and diabetes mellitus in Chinese patients. However, whether nicotinamide N-methyltransferase plays a role in human coronary artery disease (CAD) remains to be elucidated. We aim to investigate the associations of serum me-Nam with CAD in Chinese patients. METHODS AND RESULTS: Serum me-NAM was measured by liquid chromatography-mass spectrometry in patients with (n=230) or without (n=103) CAD as defined by coronary angiography...
February 7, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28166749/antidiabetic-effects-of-brucea-javanica-seeds-in-type-2-diabetic-rats
#6
Abdulwali Ablat, Mohammed Farouq Halabi, Jamaludin Mohamad, Muhammad Hafiz Husna Hasnan, Hazrina Hazni, Ser-Huy Teh, Jamil A Shilpi, Zulqarnain Mohamed, Khalijah Awang
BACKGROUND: Brucea javanica (B. javanica) seeds, also known as "Melada pahit" in Indo-Malay region are traditionally used to treat diabetes. The objective of this study was to determine antidiabetic, antioxidant and anti-inflammatory effects of B. javanica seeds on nicotinamide (NA)-streptozotocin (STZ) induced type 2 diabetic (T2D) rats and to analyze its chemical composition that correlate with their pharmacological activities. METHODS: A hydroethanolic extract of B...
February 6, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28144140/renal-targeting-potential-of-a-polymeric-drug-carrier-poly-l-glutamic-acid-in-normal-and-diabetic-rats
#7
Hann-Juang Chai, Lik-Voon Kiew, Yunni Chin, Anwar Norazit, Suzita Mohd Noor, Yoke-Lin Lo, Chung-Yeng Looi, Yeh-Siang Lau, Tuck-Meng Lim, Won-Fen Wong, Nor Azizan Abdullah, Munavvar Zubaid Abdul Sattar, Edward J Johns, Zamri Chik, Lip-Yong Chung
BACKGROUND AND PURPOSE: Poly-l-glutamic acid (PG) has been used widely as a carrier to deliver anticancer chemotherapeutics. This study evaluates PG as a selective renal drug carrier. EXPERIMENTAL APPROACH: (3)H-deoxycytidine-labeled PGs (17 or 41 kDa) and (3)H-deoxycytidine were administered intravenously to normal rats and streptozotocin-induced diabetic rats. The biodistribution of these compounds was determined over 24 h. Accumulation of PG in normal kidneys was also tracked using 5-(aminoacetamido) fluorescein (fluoresceinyl glycine amide)-labeled PG (PG-AF)...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28142314/metformin-attenuates-hepatic-insulin-resistance-in-type-2-diabetic-rats-through-pi3k-akt-glut-4-signalling-independent-to-bicuculline-sensitive-gabaa-receptor-stimulation
#8
Debapriya Garabadu, Sairam Krishnamurthy
CONTEXT: Metformin attenuates type-2 diabetes mellitus (T2DM)-induced hepatic dysfunction and altered PI3K/Akt/GLUT-4 signalling in experimental studies. However, its effect on bicuculline-sensitive gamma amino butyric acid (GABA)-A receptor (GABAAR)-mediated calcium-dependent PI3K/Akt/GLUT-4 signalling in liver challenged to T2DM has not been established. OBJECTIVE: The effectiveness of metformin on bicuculline-sensitive GABAAR-mediated hepatic insulin signalling was carried out in presence or absence of bicuculline (2...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28138003/the-effects-of-liraglutide-in-mice-with-diet-induced-obesity-studied-by-metabolomics
#9
Martina Buganova, Helena Pelantova, Martina Holubova, Blanka Sediva, Lenka Maletinska, Blanka Zelezna, Jaroslav Kunes, Petr Kacer, Marek Kuzma, Martin Haluzik
Liraglutide is the glucagon-like peptide-1 receptor agonist widely used for the treatment of type 2 diabetes mellitus. Recently, it has been demonstrated to decrease cardiovascular morbidity and mortality in patients with type 2 diabetes and high cardiovascular risk. While the major modes of liraglutide action are well-known, its detailed action at the metabolic level has not been studied. To this end, we explored the effect of 2-week liraglutide treatment in C57BL/6 male mice with obesity and diabetes induced by 13 weeks of high-fat diet using NMR spectroscopy to capture the changes in urine metabolic profile induced by the therapy...
January 30, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28131839/myeloperoxidase-amplified-high-glucose-induced-endothelial-dysfunction-in-vasculature-role-of-nadph-oxidase-and-hypochlorous-acid
#10
Rong Tian, Yun Ding, Yi-Yuan Peng, Naihao Lu
Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase-derived reactive oxygen species (ROS) such as superoxide and hydrogen peroxide (H2O2), have emerged as important molecules in the pathogenesis of diabetic endothelial dysfunction. Additionally, neutrophils-derived myeloperoxidase (MPO) and MPO-catalyzed hypochlorous acid (HOCl) play important roles in the vascular injury. However, it is unknown whether MPO can use vascular-derived ROS to induce diabetic endothelial dysfunction. In the present study, we demonstrated that NADPH oxidase was the main source of ROS formation in high glucose-cultured human umbilical vein endothelial cells (HUVECs), and played a critical role in high glucose-induced endothelial dysfunction such as cell apoptosis, loss of cell viability and reduction of nitric oxide (NO)...
March 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28095743/adult-murine-pancreatic-progenitors-require-epidermal-growth-factor-and-nicotinamide-for-self-renewal-and-differentiation-in-a-serum-and-conditioned-medium-free-culture
#11
Lena Wedeken, Angela Luo, Jacob R Tremblay, Jeffrey Rawson, Liang Jin, Dan Gao, Janine Quijano, Hsun Teresa Ku
Adult pancreatic stem and progenitor cells may serve as an alternative source of insulin-secreting endocrine cells in cell replacement therapy for type 1 diabetes, but much remained unknown about these cells. We previously identified adult murine pancreatic progenitor-like cells that displayed in vitro self-renewal and tri-lineage differentiation activities in a three-dimensional colony/organoid assay containing 1% methylcellulose and 5% Matrigel. However, the presence of other undefined culture components, such as serum and conditioned medium, has prevented a complete understanding of the signals required for progenitor cell growth...
January 17, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28090703/differentiation-of-islet-progenitors-regulated-by-nicotinamide-into-transcriptome-verified-%C3%AE-cells-that-ameliorate-diabetes
#12
Fang-Xu Jiang, Kevin Li, Michael Archer, Munish Mehta, Emma Jamieson, Adrian Charles, Jan E Dickinson, Masahito Matsumoto, Grant Morahan
Developmental stage-specific differentiation of stem or progenitor cells into safe and functional cells is of fundamental importance in regenerative medicine, including β-cell replacement. However, the differentiation of islet progenitor cells (IPCs) into insulin-secreting β cells remains elusive. Here, we report that the multi-functional molecule nicotinamide (NIC) is a specific differentiation regulator of mouse IPCs. The differentiated cells regulated by NIC exhibited many characteristics of adult β cells, including ameliorating preclinical diabetes and a highly comparable transcriptome profile...
January 16, 2017: Stem Cells
https://www.readbyqxmd.com/read/28079268/renoprotective-effect-of-hypericum-perforatum-against-diabetic-nephropathy-in-rats-insights-in-the-underlying-mechanisms
#13
Dalia M Abd El Motteleb, Dalia I Abd El Aleem
Oxidative stress and inflammation play a key role in the initiation and progression of diabetic nephropathy (DN). The present study aimed to investigate the possible protective effect of hypericum perforatum (HP) against DN. Rats were allocated into six groups; control: received normal saline, diabetic untreated (DM): received single dose of streptozotocin (STZ) after injection of nicotinamide (NA), gliclazide: received STZ,NA+ gliclazide (10mg/kg), DM+HP50, DM+HP100, DM+HP200:received STZ,NA and HP 50, 100, 200 mg/kg respectively...
January 12, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28077679/crispr-cas9-gene-repair-of-hematopoietic-stem-cells-from-patients-with-x-linked-chronic-granulomatous-disease
#14
Suk See De Ravin, Linhong Li, Xiaolin Wu, Uimook Choi, Cornell Allen, Sherry Koontz, Janet Lee, Narda Theobald-Whiting, Jessica Chu, Mary Garofalo, Colin Sweeney, Lela Kardava, Susan Moir, Angelia Viley, Pachai Natarajan, Ling Su, Douglas Kuhns, Kol A Zarember, Madhusudan V Peshwa, Harry L Malech
Gene repair of CD34(+) hematopoietic stem and progenitor cells (HSPCs) may avoid problems associated with gene therapy, such as vector-related mutagenesis and dysregulated transgene expression. We used CRISPR (clustered regularly interspaced short palindromic repeat)/Cas9 (CRISPR-associated 9) to repair a mutation in the CYBB gene of CD34(+) HSPCs from patients with the immunodeficiency disorder X-linked chronic granulomatous disease (X-CGD). Sequence-confirmed repair of >20% of HSPCs from X-CGD patients restored the function of NADPH (nicotinamide adenine dinucleotide phosphate) oxidase and superoxide radical production in myeloid cells differentiated from these progenitor cells in vitro...
January 11, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28071754/far-infrared-protects-vascular-endothelial-cells-from-advanced-glycation-end-products-induced-injury-via-plzf-mediated-autophagy-in-diabetic-mice
#15
Cheng-Hsien Chen, Tso-Hsiao Chen, Mei-Yi Wu, Tz-Chong Chou, Jia-Rung Chen, Meng-Jun Wei, San-Liang Lee, Li-Yu Hong, Cai-Mei Zheng, I-Jen Chiu, Yuh-Feng Lin, Ching-Min Hsu, Yung-Ho Hsu
The accumulation of advanced glycation end products (AGEs) in diabetic patients induces vascular endothelial injury. Promyelocytic leukemia zinc finger protein (PLZF) is a transcription factor that can be activated by low-temperature far-infrared (FIR) irradiation to exert beneficial effects on the vascular endothelium. In the present study, we investigated the influence of FIR-induced PLZF activation on AGE-induced endothelial injury both in vitro and in vivo. FIR irradiation inhibited AGE-induced apoptosis in human umbilical vein endothelial cells (HUVECs)...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28069660/antioxidant-treatment-attenuates-lactate-production-in-diabetic-nephropathy
#16
Christoffer Laustsen, Per Mose Nielsen, Thomas Stokholm Nørlinger, Haiyun Qi, Uffe Kjærgaard Pedersen, Lotte Bonde Bertelsen, Jakob Appel Østergaard, Allan Flyvbjerg, Jan Henrik Ardenkjær-Larsen, Fredrik Palm, Hans Stødkilde-Jørgensen
The early progression of diabetic nephropathy is notoriously difficult to detect and quantify before the occurrence of substantial histological damage. Recently, hyperpolarized [1-(13)C]pyruvate has demonstrated increased lactate production in the kidney early after the onset of diabetes, implying increased lactate dehydrogenase activity as a consequence of increased nicotinamide adenine dinucleotide substrate availability due to upregulation of the polyol pathway, i.e., pseudohypoxia. In this study, we investigated the role of oxidative stress in mediating these metabolic alterations using state-of-the-art hyperpolarized magnetic resonance (MR) imaging...
January 1, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28053951/effects-of-betulinic-acid-on-the-male-reproductive-system-of-a-streptozotocin-nicotinamide-induced-diabetic-mouse-model
#17
Akram Ahangarpour, Ali Akbar Oroojan, Layasadat Khorsandi, Golshan Arzani, Golshan Afshari
PURPOSE: The present study was conducted to evaluate the favorable or harmful effects of betulinic acid (BA) on a diabetic reproductive system. MATERIALS AND METHODS: In this experimental study, 60 male Naval Medical Research Institute mice (20∼25 g) were randomly divided into 6 groups: control, diabetes, diabetes+BA (10, 20, and 40 mg/kg), and diabetes+ metformin (200 mg/kg). A diabetic model was induced by a single dose of streptozotocin (STZ) (65 mg/kg) injection intraperitoneally 15 minutes after an intraperitoneal administration of nicotinamide (NA) (120 mg/kg)...
December 2016: World Journal of Men's Health
https://www.readbyqxmd.com/read/28049652/association-of-adrenal-insufficiency-with-insulin-dependent-diabetes-mellitus-in-a-patient-with-inactivating-mutations-in-nicotinamide-nucleotide-transhydrogenase-a-phenocopy-of-the-animal-model
#18
Rachel Scott, Guy Van Vliet, Johnny Deladoëy
No abstract text is available yet for this article.
March 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28036029/fenofibrate-therapy-restores-antioxidant-protection-and-improves-myocardial-insulin-resistance-in-a-rat-model-of-metabolic-syndrome-and-myocardial-ischemia-the-role-of-angiotensin-ii
#19
Luz Ibarra-Lara, María Sánchez-Aguilar, Alicia Sánchez-Mendoza, Leonardo Del Valle-Mondragón, Elizabeth Soria-Castro, Elizabeth Carreón-Torres, Eulises Díaz-Díaz, Héctor Vázquez-Meza, Verónica Guarner-Lans, María Esther Rubio-Ruiz
Renin-angiotensin system (RAS) activation promotes oxidative stress which increases the risk of cardiac dysfunction in metabolic syndrome (MetS) and favors local insulin resistance. Fibrates regulate RAS improving MetS, type-2 diabetes and cardiovascular diseases. We studied the effect of fenofibrate treatment on the myocardic signaling pathway of Angiotensin II (Ang II)/Angiotensin II type 1 receptor (AT1) and its relationship with oxidative stress and myocardial insulin resistance in MetS rats under heart ischemia...
December 28, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28027533/quercetin-ameliorates-oxidative-stress-inflammation-and-apoptosis-in-the-heart-of-streptozotocin-nicotinamide-induced-adult-male-diabetic-rats
#20
Josef Roslan, Nelli Giribabu, Kamarulzaman Karim, Naguib Salleh
INTRODUCTION: Quercetin is known to possess beneficial effects in ameliorating diabetic complications, however the mechanisms underlying cardioprotective effect of this compound in diabetes is not fully revealed. In this study, quercetin effect on oxidative stress, inflammation and apoptosis in the heart in diabetes were investigated. Normal and streptozotocin-nicotinamide induced adult male diabetic rats received quercetin (10, 25 and 50mg/kg/bw) orally for 28days were anesthetized and hemodynamic parameters i...
February 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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