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https://www.readbyqxmd.com/read/29157127/modulation-of-the-gut-microbiota-by-metformin-improves-metabolic-profiles-in-aged-obese-mice
#1
Heetae Lee, Youngjoo Lee, Jiyeon Kim, Jinho An, Sungwon Lee, Hyunseok Kong, Youngcheon Song, Chong-Kil Lee, Kyungjae Kim
The gut microbiota is a contributing factor in obesity-related metabolic disorders. The effect of metformin on the gut microbiota has been reported; however, the relationship between the gut microbiota and the mechanism of action of metformin in elderly individuals is unclear. In this study, the effect of metformin on the gut microbiota was investigated in aged obese mice. The abundance of the genera Akkermansia, Bacteroides, Butyricimonas, and Parabacteroides was significantly increased by metformin in mice fed a high-fat diet...
November 20, 2017: Gut Microbes
https://www.readbyqxmd.com/read/29151256/melatonin-and-metformin-diminish-oxidative-stress-in-heart-tissue-in-a-rat-model-of-high-fat-diet-and-mammary-carcinogenesis
#2
Natalia Kurhaluk, Bianka Bojkova, Marek Radkowski, Olga V Zaitseva, Svitlana Kyriienko, Urszula Demkow, Pawel J Winklewski
The aim of this study was to determine the effects of long-term administration of the oral antidiabetic metformin or the pineal hormone melatonin, and a combination thereof, in preventing oxidative stress in the heart tissue of female Sprague-Dawley rats with mammary tumors induced by N-methyl-N-nitrosourea (NMU) (50 mg/kg) given on the 42nd postnatal day. Metformin and melatonin were administered 12 days before and 16 weeks after the carcinogen. During the experiment, all animals were fed a high fat diet (10% total fat, 2...
November 19, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29148173/metformin-protects-against-intestinal-barrier-dysfunction-via-ampk%C3%AE-1-dependent-inhibition-of-jnk-signalling-activation
#3
Jun Deng, Lishan Zeng, Xueying Lai, Jing Li, Le Liu, Qianyun Lin, Ye Chen
Disruption of the intestinal epithelial barrier, that involves the activation of C-Jun N-terminal kinase (JNK), contributes to initiate and accelerate inflammation in inflammatory bowel disease. Metformin has unexpected beneficial effects other than glucose-lowering effects. Here, we provided evidence that metformin can protect against intestinal barrier dysfunction in colitis. We showed that metformin alleviated dextran sodium sulphate (DSS)-induced decreases in transepithelial electrical resistance, FITC-dextran hyperpermeability, loss of the tight junction (TJ) proteins occludin and ZO-1 and bacterial translocation in Caco-2 cell monolayers or in colitis mice models...
November 17, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29147450/effect-of-tirapazamine-metformin-or-mild-hyperthermia-on-recovery-from-radiation-induced-damage-in-pimonidazole-unlabeled-quiescent-tumor-cells
#4
Shin-Ichiro Masunaga, Keizo Tano, Yu Sanada, Yoshinori Sakurai, Hiroki Tanaka, Minoru Suzuki, Natsuko Kondo, Tsubasa Watanabe, Takushi Takata, Akira Maruhashi, Koji Ono
Background: The aim of the study was to examine the effect of tirapazamine (TPZ) on recovery from radiation-induced damage in pimonidazole-unlabeled quiescent (Q) tumor cells compared with that of metformin (Met) or mild temperature hyperthermia (MTH). Methods: Proliferating (P) cells in EL4 tumors were labeled by continuous 5-bromo-2'-deoxyuridine (BrdU) administration. Tumors received γ-rays at 1 h after pimonidazole administration followed by Met or TPZ treatment or MTH...
October 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29147073/metformin-suppressed-cxcl8-expression-and-cell-migration-in-hek293-tlr4-cell-line
#5
Zhihui Xiao, Wenjun Wu, Vladimir Poltoratsky
Chronic inflammation is associated with cancer. CXCL8 promotes tumor microenvironment construction through recruiting leukocytes and endothelial progenitor cells that are involved in angiogenesis. It also enhances tumor cell proliferation and migration. Metformin, type II diabetes medication, demonstrates anticancer properties via suppressing inflammation, tumor cell proliferation, angiogenesis, and metastasis. This study intended to address the role of metformin in regulation of CXCL8 expression and cell proliferation and migration...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/29146638/preventing-type-2-diabetes-systematic-review-of-studies-of-cost-effectiveness-of-lifestyle-programmes-and-metformin-with-and-without-screening-for-pre-diabetes
#6
Samantha Roberts, Eleanor Barry, Dawn Craig, Mara Airoldi, Gwyn Bevan, Trisha Greenhalgh
OBJECTIVE: Explore the cost-effectiveness of lifestyle interventions and metformin in reducing subsequent incidence of type 2 diabetes, both alone and in combination with a screening programme to identify high-risk individuals. DESIGN: Systematic review of economic evaluations. DATA SOURCES AND ELIGIBILITY CRITERIA: Database searches (Embase, Medline, PreMedline, NHS EED) and citation tracking identified economic evaluations of lifestyle interventions or metformin alone or in combination with screening programmes in people at high risk of developing diabetes...
November 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/29145540/inverse-association-of-peripheral-orexin-a-with-insulin-resistance-in-type-2-diabetes-mellitus-a-randomized-clinical-trial
#7
Mitra Zarifkar, Sina Noshad, Mona Shahriari, Mohsen Afarideh, Elias Khajeh, Zahra Karimi, Alireza Ghajar, Alireza Esteghamati
AIMS: To investigate the association between serum orexin concentrations and insulin resistance/sensitivity in a sample of patients with type 2 diabetes mellitus, and to study the effects of anti-hyperglycemic treatment on orexin concentrations over three months. METHODS: This study was designed as a randomized, open-label, clinical trial. Before allocation, sixty medication-naïve, newly-diagnosed, type 2 diabetes patients underwent a 75 g oral glucose tolerance test (OGTT)...
July 2017: Review of Diabetic Studies: RDS
https://www.readbyqxmd.com/read/29144016/what-is-the-protective-effect-of-metformin-on-rat-ovary-against-ischemia-reperfusion-injury
#8
Cemile Dayangan Sayan, Gokhan Karaca, Zehra Sema Ozkan, Ozlem B Tulmac, Aslı Ceylan Isik, Tuba Devrim, Gülcin Aydin, Ilkin Yeral
AIM: The aim of this study was to investigate the protective effect of metformin on the rat ovary against ischemia-reperfusion injury. METHODS: Thirty-seven female Wistar albino rats were used in the study. The rats were divided into five groups, as follows: sham operation group (group 1); torsion group (group 2); torsion/detorsion + saline group (group 3); torsion/detorsion + low-dose metformin group (group 4); and torsion/detorsion + high-dose metformin group (group 5)...
November 16, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29143783/metformin-potentiates-the-benefits-of-dietary-restraint-a-metabolomic-study
#9
Marta Riera-Borrull, Anabel García-Heredia, Salvador Fernández-Arroyo, Anna Hernández-Aguilera, Noemí Cabré, Elisabet Cuyàs, Fedra Luciano-Mateo, Jordi Camps, Javier A Menendez, Jorge Joven
Prevention of the metabolic consequences of a chronic energy-dense/high-fat diet (HFD) represents a public health priority. Metformin is a strong candidate to be incorporated in alternative therapeutic approaches. We used a targeted metabolomic approach to assess changes related to the multi-faceted metabolic disturbances provoked by HFD. We evaluated the protective effects of metformin and explored how pro-inflammatory and metabolic changes respond when mice rendered obese, glucose-intolerant and hyperlipidemic were switched to diet reversal with or without metformin...
October 28, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29142561/feto-maternal-outcomes-and-glycemic-control-in-metformin-versus-insulin-treated-gestational-diabetics
#10
Rabia Arshad, Samia Khanam, Fuad Shaikh, Nasim Karim
Objective: To evaluate and compare feto-maternal outcomes and glycemic control in metformin versus insulin treated gestational diabetics. Methods: The study was conducted in 2010- 2012 as a part of M. Phil at Civil hospital, Lyari General Hospital and Mamji Hospital in Karachi. After written informed consent, 71 GDM diagnosed females with WHO criteria were enrolled. They were divided into two groups. Group-A, 32 females were given oral metformin 500 mg TDS while Group-B, 39 females were given insulin 0...
September 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/29142469/hypothermic-machine-perfusion-with-metformin-university-of-wisconsin-solution-for-ex-vivo-preservation-of-standard-and-marginal-liver-grafts-in-a-rat-model
#11
Yi-Chao Chai, Guo-Xin Dang, Hai-Qi He, Jian-Hua Shi, Hong-Ke Zhang, Rui-Tao Zhang, Bo Wang, Liang-Shuo Hu, Yi Lv
AIM: To compare the effect of University of Wisconsin (UW) solution with or without metformin, an AMP-activated protein kinase (AMPK) activator, for preserving standard and marginal liver grafts of young and aged rats ex vivo by hypothermic machine perfusion (HMP). METHODS: Eighteen young (4 mo old) and 18 aged (17 mo old) healthy male SD rats were selected and randomly divided into three groups: control group, UW solution perfusion group (UWP), and UW solution with metformin perfusion group (MUWP)...
October 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29142421/extract-of-bauhinia-vahlii-shows-antihyperglycemic-activity-reverses-oxidative-stress-and-protects-against-liver-damage-in-streptozotocin-induced-diabetic-rats
#12
Ahmed H Elbanna, Mohammed M Nooh, Engy A Mahrous, Amal E Khaleel, Taha S Elalfy
Background: Several studies have affirmed the effectiveness of some Bauhinia plants as antihyperglycemic agents. Objective: We investigated the possible effect of Bauhinia vahlii leaves extract in reducing hyperglycemia and reversing signs of organ damage associated with diabetes in streptozotocin (STZ) rat model. Materials and Methods: Both polar fraction of the B. vahlii leaves (defatted ethanolic extract [DEE]) and nonpolar fraction (n-hexane extract) were evaluated in vitro for α-glucosidase inhibition and 2,2-diphenyl-1-picrylhydrazyl radical scavenging potential...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29142405/antihyperglycemic-activity-of-caralluma-fimbriata-an-in-vitro-approach
#13
Shenai Ashwini, Roy Anitha
Background: An increase in prevalence of diabetes mellitus necessitates the need to develop new drugs for its effective management. Plants and their bioactive compounds are found to be an alternative therapeutic approach. Caralluma fimbriata, used in this study, is well known for its various biological effects. Objective: The present study was designed to investigate the antihyperglycemic effect of the ethanolic leaf extract of C. fimbriata. Materials and Methods: Different concentrations (1-1000 mg/mL) of the ethanolic leaf extract of C...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29139081/liraglutide-improves-cardiovascular-risk-as-an-add-on-to-metformin-and-not-to-insulin-secretagogues-in-type-2-diabetic-patients-a-real-life-48-month-retrospective-study
#14
Alessandro Ciresi, Enrica Vigneri, Stefano Radellini, Felicia Pantò, Carla Giordano
INTRODUCTION: Although liraglutide is widely recognized to have glycemic and extra-glycemic effects, few studies have compared these effects in relation to hypoglycemic treatment starting from the diagnosis of diabetes. We evaluated the effectiveness of liraglutide in reducing the Framingham risk score (FRS) and visceral adiposity index (VAI) in relation to first-line hypoglycemic treatment from diagnosis of type 2 diabetes, continued without any changes. METHODS: We selected 105 diabetic outpatients who were treated with liraglutide for at least 48 months as an add-on therapy to metformin alone (group A, n = 52) or insulin secretagogues (group B, n = 53) from diagnosis time...
November 14, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/29139080/a-review-of-insulin-resistance-in-type-1-diabetes-is-there-a-place-for-adjunctive-metformin
#15
REVIEW
Gagan Priya, Sanjay Kalra
There is a rising trend of overweight and obesity among individuals with type 1 diabetes. This is often associated with insulin resistance, increased insulin dose requirements and poor glycemic control. Insulin resistance is also seen during puberty and is strongly related to increased risk of cardiovascular disease. The role of metformin as an adjunct to ongoing intensive insulin therapy in type 1 diabetics has been evaluated in several randomized trials, including the recently concluded T1D Exchange Network trial in adolescents and the REMOVAL trial in adults...
November 14, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/29138876/lower-risk-of-dementia-with-pioglitazone-compared-with-other-second-line-treatments-in-metformin-based-dual-therapy-a-population-based-longitudinal-study
#16
Chieh-Hsiang Lu, Chen-Yi Yang, Chung-Yi Li, Cheng-Yang Hsieh, Huang-Tz Ou
AIMS/HYPOTHESIS: The effect of pioglitazone was compared with that of other second-line glucose-lowering drugs on the risk of dementia among individuals with type 2 diabetes receiving metformin-based dual therapy. METHODS: A total of 204,323 individuals with type 2 diabetes aged ≥18 years who were stable metformin users and dementia-free before the initiation of second-line glucose-lowering medication were identified in the period 2000-2011 from Taiwan's National Health Insurance Research Database and followed to the end of 2013...
November 14, 2017: Diabetologia
https://www.readbyqxmd.com/read/29138224/short-term-metformin-and-exercise-training-effects-on-strength-aerobic-capacity-glycemic-control-and-mitochondrial-function-in-children-with-burn-injury
#17
Eric Rivas, David N Herndon, Craig Porter, Walter Meyer, Oscar E Suman
Severely burned children experience a chronic state of sympathetic nervous system activation that is associated with hypermetabolic/cardiac stress and muscle wasting. Metformin, a diabetes medication, helps control hyperglycemia in diabetic populations, and exercise has been shown to improve exercise strength and aerobic exercise capacity after severe burns. However, whether exercise improves glycemic control in burned children and whether combining exercise and metformin improves outcomes to a greater degree than exercise alone is unknown...
November 14, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29137853/antidiabetic-antihyperlipidemic-activities-and-herb-drug-interaction-of-a-polyherbal-formulation-in-streptozotocin
#18
Vishnu P Choudhari, Ketkee P Gore, Anil T Pawar
BACKGROUND: Ojamin (OJ), a polyherbal antidiabetic formulation, is extensively used as a food supplement to control diabetes alone or along with synthetic antidiabetic agents. However, it's phytochemical and pharmacological investigations are lacking. OBJECTIVE: The present study was undertaken to study antidiabetic and antihyperlipidemic potentials of OJ and its interaction with Metformin in streptozotocin (STZ)-induced diabetic rats. MATERIALS AND METHODS: Diabetes was induced in Wistar rats by single intraperitoneal (i...
November 11, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/29137475/metformin-attenuates-myocardium-dicarbonyl-stress-induced-by-chronic-hypertriglyceridemia
#19
H Malinska, V Škop, J Trnovska, I Markova, P Svoboda, L Kazdova, M Haluzik
Reactive dicarbonyls stimulate production of advanced glycation endproducts, increase oxidative stress and inflammation and contribute to the development of vascular complications. We measured concentrations of dicarbonyls - methylglyoxal (MG), glyoxal (GL) and 3-deoxyglucosone (3-DG) - in the heart and kidney of a model of metabolic syndrome - hereditary hypertriglyceridemic rats (HHTg) and explored its modulation by metformin. Adult HHTg rats were fed a standard diet with or without metformin (300 mg/kg b...
November 10, 2017: Physiological Research
https://www.readbyqxmd.com/read/29136782/effect-of-human-umbilical-cord-blood-derived-mononuclear-cells-on-diabetic-nephropathy-in-rats
#20
Nahla E El-Ashmawy, Eman G Khedr, Hoda A El-Bahrawy, Shimaa A El-Berashy
Diabetic nephropathy (DN) is damage to the kidney which can lead to chronic renal failure, eventually requiring dialysis. Diabetes mellitus is the most common cause of adult kidney failure worldwide in the developed world. The current work was designed to elucidate the effect of mononuclear cells (MNCs) injection on reverse DN in rats exposed to streptozotocin (STZ) injection compared to metformin as a known hypoglycemic drug, 40 Male rats were divided equally into 4 groups; normal control group, diabetic control group, MNCs group were diabetic rats treated with MNCs (30×10(6) MNCs/rat once iv dose) in the tail vein of the rat, and metformin group were diabetic rats treated with metformin (100mg/kg orally daily dose) for four weeks...
November 8, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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