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Metformin Aging

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https://www.readbyqxmd.com/read/29049653/effect-of-oral-semaglutide-compared-with-placebo-and-subcutaneous-semaglutide-on-glycemic-control-in-patients-with-type-2-diabetes-a-randomized-clinical-trial
#1
Melanie Davies, Thomas R Pieber, Marie-Louise Hartoft-Nielsen, Oluf K H Hansen, Serge Jabbour, Julio Rosenstock
Importance: Glucagon-like peptide-1 (GLP-1) receptor agonists are effective therapies for the treatment of type 2 diabetes and are all currently available as an injection. Objectives: To compare the effects of oral semaglutide with placebo (primary) and open-label subcutaneous semaglutide (secondary) on glycemic control in patients with type 2 diabetes. Design, Setting, and Patients: Phase 2, randomized, parallel-group, dosage-finding, 26-week trial with 5-week follow-up at 100 sites (hospital clinics, general practices, and clinical research centers) in 14 countries conducted between December 2013 and December 2014...
October 17, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29047344/efficacy-and-safety-of-metformin-in-the-management-of-type-2-diabetes-mellitus-in-older-adults-a-systematic-review-for-the-development-of-recommendations-to-reduce-potentially-inappropriate-prescribing
#2
REVIEW
Lisa Schlender, Yolanda V Martinez, Charles Adeniji, David Reeves, Barbara Faller, Christina Sommerauer, Thekraiat Al Qur'an, Adrine Woodham, Ilkka Kunnamo, Andreas Sönnichsen, Anna Renom-Guiteras
BACKGROUND: Metformin is usually prescribed as first line therapy for type 2 diabetes mellitus (DM2). However, the benefits and risks of metformin may be different for older people. This systematic review examined the available evidence on the safety and efficacy of metformin in the management of DM2 in older adults. The findings were used to develop recommendations for the electronic decision support tool of the European project PRIMA-eDS. METHODS: The systematic review followed a staged approach, initially searching for systematic reviews and meta-analyses first, and then individual studies when prior searches were inconclusive...
October 16, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/29046482/blunted-rise-in-brain-glucose-levels-during-hyperglycemia-in-adults-with-obesity-and-t2dm
#3
Janice J Hwang, Lihong Jiang, Muhammad Hamza, Elizabeth Sanchez Rangel, Feng Dai, Renata Belfort-DeAguiar, Lisa Parikh, Brian B Koo, Douglas L Rothman, Graeme Mason, Robert S Sherwin
In rodent models, obesity and hyperglycemia alter cerebral glucose metabolism and glucose transport into the brain, resulting in disordered cerebral function as well as inappropriate responses to homeostatic and hedonic inputs. Whether similar findings are seen in the human brain remains unclear. In this study, 25 participants (9 healthy participants; 10 obese nondiabetic participants; and 6 poorly controlled, insulin- and metformin-treated type 2 diabetes mellitus (T2DM) participants) underwent 1H magnetic resonance spectroscopy scanning in the occipital lobe to measure the change in intracerebral glucose levels during a 2-hour hyperglycemic clamp (glucose ~220 mg/dl)...
October 19, 2017: JCI Insight
https://www.readbyqxmd.com/read/29045765/oral-anti-diabetic-agents-for-women-with-established-diabetes-impaired-glucose-tolerance-or-previous-gestational-diabetes-planning-pregnancy-or-pregnant-women-with-pre-existing-diabetes
#4
REVIEW
Joanna Tieu, Suzette Coat, William Hague, Philippa Middleton, Emily Shepherd
BACKGROUND: While most guidance recommends the use of insulin in women whose pregnancies are affected by pre-existing diabetes, oral anti-diabetic agents may be more acceptable to women. The effects of these oral anti-diabetic agents on maternal and infant health outcomes need to be established in pregnant women with pre-existing diabetes or impaired glucose tolerance, as well as in women with previous gestational diabetes mellitus preconceptionally or during a subsequent pregnancy. OBJECTIVES: To investigate the effects of oral anti-diabetic agents in women with established diabetes, impaired glucose tolerance or previous gestational diabetes who are planning a pregnancy, or pregnant women with pre-existing diabetes, on maternal and infant health...
October 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29027899/metformin-extends-c-elegans-lifespan-through-lysosomal-pathway
#5
Jie Chen, Yuhui Ou, Yi Li, Shumei Hu, Li-Wa Shao, Ying Liu
Metformin, a widely used first-line drug for treatment of type 2 diabetes (T2D), has been shown to extend lifespan and delay the onset of age-related diseases. However, its primary locus of action remains unclear. Using a pure in vitro reconstitution system, we demonstrate that metformin acts through the v-ATPase-Ragulator lysosomal pathway to coordinate mTORC1 and AMPK, two hubs governing metabolic programs. We further show in Caenorhabditis elegans that both v-ATPase-mediated TORC1 inhibition and v-ATPase-AXIN/LKB1-mediated AMPK activation contribute to the lifespan extension effect of metformin...
October 13, 2017: ELife
https://www.readbyqxmd.com/read/29026839/missing-the-benefit-of-metformin-in-acute-myeloid-leukemia-a-problem-of-contrast
#6
Alice C Ceacareanu, George K Nimako, Zachary A P Wintrob
OBJECTIVE: To evaluate whether metformin's cancer-related benefits reported in patients with solid tumors (ST) are also present in acute myeloid leukemia (AML) patients. METHODS: Baseline demographic and clinical history for all diabetes mellitus patients newly diagnosed with AML or cancer of the breast, ovary, prostate, gastrointestinal tract, lung, or kidney at Roswell Park Cancer Institute in Buffalo, NY (January 2003-December 2010, n = 924) was collected. Overall survival (OS) and disease-free survival (DFS) were assessed by Kaplan-Meier (KM) analysis and Cox proportional hazards regression (hazard ratio [HR])...
July 2017: Journal of Research in Pharmacy Practice
https://www.readbyqxmd.com/read/29017497/the-effects-of-vildagliptin-compared-with-metformin-on-vascular-endothelial-function-and-metabolic-parameters-a-randomized-controlled-trial-sapporo-athero-incretin-study-3
#7
Naoyuki Kitao, Hideaki Miyoshi, Tomoo Furumoto, Kota Ono, Hiroshi Nomoto, Aika Miya, Chiho Yamamoto, Atsushi Inoue, Kenichi Tsuchida, Naoki Manda, Yoshio Kurihara, Shin Aoki, Akinobu Nakamura, Tatsuya Atsumi
BACKGROUND: Dipeptidyl peptidase-4 (DPP-4) inhibitors may have protective effects in the early stage of atherosclerosis in patients with type 2 diabetes, although similar effects in advanced atherosclerosis were not shown in recent randomized placebo-controlled studies. Therefore, we investigated the efficacy of DPP-4 inhibitor on endothelial function and glycemic metabolism compared with high-dose metformin. METHODS: In this multicenter, open-labeled, prospective, randomized, parallel-group comparison study, patients with type 2 diabetes treated with low-dose metformin (500-750 mg/day) were enrolled and randomly assigned to a vildagliptin, a DPP-4 inhibitor, add-on group (Vilda) or a double dose of metformin group (high Met) for 12 weeks...
October 10, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28989873/effect-of-metformin-sustained-release-therapy-on-low-density-lipoprotein-size-and-adiponectin-in-the-south-indian-women-with-polycystic-ovary-syndrome
#8
D Rama Nagendra Kumar, Krishna G Seshadri, Monna Pandurangi
OBJECTIVES: The aim of the study is to compare surrogate markers of cardiovascular disease (CVD) risk, such as adiponectin (APN) levels and low-density lipoprotein (LDL) size, before and after sustained release metformin (Met-SR) therapy in women with polycystic ovarian syndrome (PCOS). METHODS: Sixty women with PCOS and sixty age-matched controls in the age group 18-45 years were recruited after obtaining informed consent. Women with PCOS were initiated on Met-SR 1 g orally, which was increased to 1...
September 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28987074/combination-of-rheum-ribes-and-metformin-against-diabetes-thermal-hyperalgesia-and-tactile-allodynia-in-a-mice-model
#9
Karim Raafat, Abdalla El-Lakany
Context • The prevalence of diabetes mellitus (DM) is increasing. Because of its progressive nature, therapeutic shifts and combinations are often required to reduce the risk of glucose toxicity and avoid serious side effects. To treat DM and its related complications, a combination therapy may offer a promising remedy to counteract those issues. Objectives • The study was established to evaluate the phytochemical content of a standardized aqueous extract of Rheum ribes (RR) and to determine the antidiabetic, antihyperalgesic, and antimechanical allodynic effects of 50 mg/kg of RR alone, 25 mg/kg of metformin (MTF) alone, and a combination of the 2 substances (MTF+RR) in mice with alloxan-induced diabetes...
October 2, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28986164/circulating-apoj-is-closely-associated-with-insulin-resistance-in-human-subjects
#10
Ji A Seo, Min-Cheol Kang, Theodore P Ciaraldi, Sang Soo Kim, Kyong Soo Park, Charles Choe, Won Bin Hwang, Dong Mee Lim, Olivia Farr, Christos Mantzoros, Robert R Henry, Young-Bum Kim
OBJECTIVE: Insulin resistance is a major risk factor for type 2 diabetes. ApolipoproteinJ (ApoJ) has been implicated in altered pathophysiologic states including cardiovascular and Alzheimer's disease. However, the function of ApoJ in regulation of glucose homeostasis remains unclear. This study sought to determine whether serum ApoJ levels are associated with insulin resistance in human subjects and if they change after interventions that improve insulin sensitivity. METHODS: Serum ApoJ levels and insulin resistance status were assessed in nondiabetic (ND) and type 2 diabetic (T2D) subjects...
October 3, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28985184/sirolimus-precipitating-diabetes-mellitus-in-a-patient-with-congenital-hyperinsulinaemic-hypoglycaemia-due-to-autosomal-dominant-abcc8-mutation
#11
Antonia Dastamani, Maria Güemes, Joanna Walker, Pratik Shah, Khalid Hussain
BACKGROUND: Sirolimus (mTOR inhibitor) is proven to be effective in children with congenital hyperinsulinism (CHI). Studies in animals suggest that sirolimus may have diabetogenic actions. However, its role in precipitating diabetes mellitus (DM) in children with CHI has not been reported. CASE PRESENTATION: A 16-year-old female with CHI due to a dominant ABCC8 gene mutation was switched from diazoxide therapy to sirolimus, due to the hypertrichosis side effect of diazoxide...
October 6, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28979777/changes-in-treatment-of-hyperglycemia-in-a-hypertensive-type-2-diabetes-population-as-renal-function-declines
#12
Larry A Weinrauch, Alissa R Segal, George P Bayliss, Jiankang Liu, Eric Wisniewski, John A D'Elia
BACKGROUND: Cardiovascular complications associated with expensive noninsulin agents for type 2 diabetes are the focus of concern in light of the risk of kidney dysfunction with aging. Head-to-head comparisons are unavailable to guide the choice of new drugs for hyperglycemia in patients with type 2 diabetes, decreased estimated glomerular filtration rate (eGFR) and increased cardiovascular risk. A first approach would be to document current medication choices. METHODS: All prescriptions for 10 151 patients (5623 males/4528 females) with both type 2 diabetes and hypertension seen two or  more times during a 5-year period (2007-12) at Joslin Diabetes Center were evaluated...
October 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/28978007/differences-in-risk-factors-of-malignancy-between-men-and-women-with-type-2-diabetes-a-retrospective-case-control-study
#13
Mariusz Dąbrowski, Elektra Szymańska-Garbacz, Zofia Miszczyszyn, Tadeusz Dereziński, Leszek Czupryniak
BACKGROUND: The aim of this multicenter, retrospective, case-control study was to identify differences in risk factors of malignancy between men and women with type 2 diabetes. RESULTS: Among women the most prevalent malignancies were: breast and uterine cancers (35.6% and 14.4% respectively), while among men there were: colorectal and prostate cancers (24.5% and 13.3% respectively). In both gender metformin use was associated with lower cancer risk. Obesity and insulin treatment in dose-dependent and time-varying manner were associated with significantly increased risk of malignancy in females...
September 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28977924/antihyperglycemic-treatment-in-patients-with-type-2-diabetes-in-italy-the-impact-of-age-and-kidney-function
#14
Sandro Gentile, Pamela Piscitelli, Francesca Viazzi, Giuseppina Russo, Antonio Ceriello, Carlo Giorda, Piero Guida, Paola Fioretto, Roberto Pontremoli, Felice Strollo, Salvatore De Cosmo
We describe AHA utilization pattern according to age and renal function in type 2 diabetes mellitus (T2DM), in real-life conditions. The analysis was performed using the data set of electronic medical records collected between 1 January and 31 December, 2011 in 207 Italian diabetes centers. The study population consisted of 157,595 individuals with T2DM. The AHA treatment regimens was evaluated. Kidney function was assessed by eGFR, estimated using the CKD-EPI formula. Other determinations: HbA1c, blood pressure (BP), low- density lipoprotein (LDL-c), total and high density lipoprotein cholesterol (TC and HDL-c), triglycerides (TG) and serum uric acid (SUA)...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28977382/exploring-novel-diabetes-surveillance-methods-a-comparison-of-administrative-laboratory-and-pharmacy-data-case-definitions-using-thin
#15
Bushra Khokhar, Hude Quan, Gilaad G Kaplan, Sonia Butalia, Doreen Rabi
Background: The objective of this study was to identify patients with diabetes in a comprehensive primary care electronic medical records database using a number of different case definitions (clinical, pharmacy, laboratory definitions and a combination thereof) and understand the differences in patient populations being captured by each definition. Methods: Data for this population-based retrospective cohort study was obtained from The Health Information Network (THIN)...
July 28, 2017: Journal of Public Health
https://www.readbyqxmd.com/read/28966224/interaction-between-bone-and-glucose-metabolism-review
#16
Ippei Kanazawa
Accumulating evidence has shown that bone and glucose metabolism are closely associated with each other. Since the risk of osteoporotic fractures is increased in patients with diabetes mellitus (DM), osteoporosis is recently recognized as one of diabetic complications, called DM-induced bone fragility. Previous studies showed that collagen cross-links of advanced glycation end products (AGEs) and dysfunctions of osteoblast and osteocyte are involved in DM-induced bone fragility. Circulating levels of AGEs and homocysteine are increased in patients with DM, and they directly impair the functions of osteoblast and osteocyte, resulting in decreased bone formation and bone remodeling...
September 30, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28957385/additional-risk-of-diabetes-exceeds-the-increased-risk-of-cancer-caused-by-radiation-exposure-after-the-fukushima-disaster
#17
Michio Murakami, Masaharu Tsubokura, Kyoko Ono, Shuhei Nomura, Tomoyoshi Oikawa
The 2011 Fukushima disaster led to increases in multiple risks (e.g., lifestyle diseases and radiation exposure) and fear among the public. Here, we assessed the additional risks of cancer caused by radiation and diabetes related to the disaster and the cost-effectiveness of countermeasures against these conditions. Our study included residents of the cities of Minamisoma and Soma (10-40 km and 35-50 km north of the Fukushima Daiichi (N° 1) Nuclear Power Station, respectively). We used the loss of life expectancy (LLE) as an indicator to compare risks between radiation exposure and diabetes...
2017: PloS One
https://www.readbyqxmd.com/read/28954880/metformin-vs-sulfonylurea-use-and-risk-of-dementia-in-us-veterans-aged-%C3%A2-65-years-with-diabetes
#18
Ariela R Orkaby, Kelly Cho, Jean Cormack, David R Gagnon, Jane A Driver
OBJECTIVE: To determine whether metformin is associated with a lower incidence of dementia than sulfonylureas. METHODS: This was a retrospective cohort study of US veterans ≥65 years of age with type 2 diabetes who were new users of metformin or a sulfonylurea and had no dementia. Follow-up began after 2 years of therapy. To account for confounding by indication, we developed a propensity score (PS) and used inverse probability of treatment weighting (IPTW) methods...
September 27, 2017: Neurology
https://www.readbyqxmd.com/read/28954840/a-high-carbohydrate-high-fiber-low-fat-diet-results-in-weight-loss-among-adults-at-high-risk-of-type-2-diabetes
#19
Allison C Sylvetsky, Sharon L Edelstein, Geoffrey Walford, Edward J Boyko, Edward S Horton, Uzoma N Ibebuogu, William C Knowler, Maria G Montez, Marinella Temprosa, Mary Hoskin, Kristina I Rother, Linda M Delahanty
Background: Weight loss is a key factor in reducing diabetes risk. The Diabetes Prevention Program (DPP) is a completed clinical trial that randomly assigned individuals at high risk of diabetes to a placebo (PLBO), metformin (MET), or intensive lifestyle intervention (ILS) group, which included physical activity (PA) and reduced dietary fat intake.Objective: We aimed to evaluate the associations between diet and weight at baseline and to identify specific dietary factors that predicted weight loss among DPP participants...
September 27, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28951677/the-effect-of-metformin-use-on-pregnancy-rates-among-polycystic-ovary-syndrome-patients-undergoing-in-vitro-fertilization-a-retrospective-cohort-study
#20
Yazed Sulaiman Al-Ruthia, Hazem Al-Mandeel, Hisham AlSanawi, Bander Balkhi, Wael Mansy, Reem AlGasem, Lama AlMutairi
BACKGROUND: Metformin is widely used with gonadotropins by women with polycystic ovary syndrome (PCOS) during in vitro fertilization (IVF) to increase their chances of pregnancy. The aim of this study was to evaluate the efficacy of metformin in improving the rates of clinical pregnancy among women with PCOS undergoing IVF. METHODS: This was a retrospective cohort study of women with PCOS, aged 18-40 years, undergoing IVF during 2006-2012 at a University Hospital in Riyadh, Saudi Arabia...
September 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
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