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Metformin AND B12

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https://www.readbyqxmd.com/read/27867908/erratum-study-of-vitamin-b12-deficiency-and-peripheral-neuropathy-in-metformin-treated-early-type-2-diabetes-mellitus
#1
(no author information available yet)
[This corrects the article on p. 631 in vol. 20, PMID: 27730072.].
November 2016: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27806244/metformin-and-vitamin-b12-deficiency-where-do-we-stand
#2
Marwan Awad Ahmed
The association between metformin use and low vitamin B12 levels in type 2 diabetes mellitus patients is well-established. However, many aspects of the topic remain to be elucidated. There is still controversy on the current diagnostic approaches to vitamin B12 deficiency. It is now believed that measuring the serum levels of the vitamin may not reflect its metabolic status. Moreover, there were conflicting results from studies attempting to quantify and explore metformin-associated vitamin B12 deficiency and its clinical impacts...
July 2016: Journal of Pharmacy & Pharmaceutical Sciences: a Publication of the Canadian Society for Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27730072/study-of-vitamin-b12-deficiency-and-peripheral-neuropathy-in-metformin-treated-early-type-2-diabetes-mellitus
#3
Rudra Prasad Roy, Kaushik Ghosh, Manas Ghosh, Amitava Acharyya, Ambarish Bhattacharya, Mrinal Pal, Sisir Chakraborty, Nilanjan Sengupta
BACKGROUND: Long-term therapy with metformin was shown to decrease the Vitamin B12 level and manifested as peripheral neuropathy. AIM: The aim of this study is to define the prevalence of Vitamin B12 deficiency in early Type 2 diabetic patients (duration ≤5 years or drug treatment ≤3 years) and the relationship among metformin exposure and levels of cobalamin (Cbl), folic acid, and homocysteine (Hcy) with severity of peripheral neuropathy. METHODOLOGY: This is a cross-sectional study involving randomly selected ninety patients (male 56, female 34) between age groups of 35 and 70 years, comparing those who had received >6 months of metformin (Group A) (n = 35) with those without metformin (Group B) (n = 35) and patients taking metformin with other oral hypoglycemic agent (Group C) (n = 20)...
September 2016: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27728101/a-observational-study-in-patients-of-diabetes-using-metformin-causing-vitamin-b12-deficiency-causing-peripheral-neuropathy
#4
Shyamal Das, A Chakraborty
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27716423/vitamin-b12-deficiency-in-metformin-treated-type-2-diabetes-patients-prevalence-and-association-with-peripheral-neuropathy
#5
Marwan A Ahmed, George Muntingh, Paul Rheeder
BACKGROUND: The association between long-term metformin use and low vitamin B12 levels has been proven. However, the prevalence estimates of metformin-induced vitamin B12 deficiency showed considerable variation among the studies. The potential of the deficiency to cause or worsen peripheral neuropathy in type-2 diabetes mellitus (T2DM) patients has been investigated with conflicting results. The aim of the study was to investigate: 1) the prevalence of vitamin B12 deficiency in T2DM patients on metformin; 2) the association between vitamin B12 and peripheral neuropathy; 3) and the risk factors for vitamin B12 deficiency in these patients...
October 7, 2016: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/27638143/vitamin-b12-deficiency-is-associated-with-cardiovascular-autonomic-neuropathy-in-patients-with-type-2-diabetes
#6
Christian S Hansen, Jan S Jensen, Martin Ridderstråle, Dorte Vistisen, Marit E Jørgensen, Jesper Fleischer
AIMS: Vitamin B12 deficiency could be associated with cardiovascular autonomic neuropathy (CAN) in diabetes patients. We aim to investigate the association between serum levels of vitamin B12 and CAN in type 2 diabetes patients. METHODS: 469 ambulatory type 2 diabetes patients (mean diabetes duration 10.0years (IQR 5.0;17.0), mean age 59.0years (SD 11.6), 63% men, mean B12 289.0pmol/l (IQR 217;390)) were screened for CAN using three cardiovascular reflex tests, five minute resting heart rate (5min RHR) and heart rate variability indices...
August 30, 2016: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/27570337/is-metformin-induced-vitamin-b12-deficiency-responsible-for-cognitive-decline-in-type-2-diabetes
#7
Deepti Khattar, Farah Khaliq, Neelam Vaney, S V Madhu
INTRODUCTION: Diabetes mellitus has its deleterious effects on various aspects of cognition such as memory function, executive function, and information-processing speed. The present study aims to assess cognition in diabetes patients and also tries to find its association with Vitamin B12 deficiency induced by metformin. MATERIALS AND METHODS: Thirty diabetics taking metformin and thirty nondiabetic controls were enrolled. Event-related potentials (ERPs) and serum Vitamin B12 levels were evaluated in them...
July 2016: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/27513580/multivitamin-use-and-serum-vitamin-b12-concentrations-in-older-adult-metformin-users-in-regards-2003-2007
#8
Vijaya Kancherla, Joshua V Garn, Neil A Zakai, Rebecca S Williamson, Winn T Cashion, Oluwaseun Odewole, Suzanne E Judd, Godfrey P Oakley
Metformin, an insulin-sensitizing drug, is a first line treatment for type 2 diabetes. Long-term use of metformin has been associated with subsequent reductions in vitamin B12 concentrations. The objective of our study was to determine whether metformin use is associated with lower serum vitamin B12 concentrations in older adults, and whether concurrent use of multivitamins modifies this association. We examined 2,510 participants aged 50 years and over, participating in the national population-based Reasons for Geographic And Racial Differences in Stroke (REGARDS) Study...
2016: PloS One
https://www.readbyqxmd.com/read/27358222/delayed-auditory-conduction-in-diabetes-is-metformin-induced-vitamin-b12-deficiency-responsible
#9
D Khattar, F Khaliq, N Vaney, S V Madhu
The present study aims to evaluate the functional integrity of the auditory pathway in patients with diabetes taking metformin. A further aim is to assess its association with vitamin B12 deficiency induced by metformin. Thirty diabetics taking metformin and 30 age-matched non-diabetic controls were enrolled. Stimulus-related potentials and vitamin B12 levels were evaluated in all the subjects. The diabetics showed deficient vitamin B12 levels and delayed wave III latency and III-V interpeak latency in the right ear and delayed Na and Pa wave latencies in the left ear compared with the controls...
April 2016: Functional Neurology
https://www.readbyqxmd.com/read/27355231/sublingual-vitamin-b12-compared-to-intramuscular-injection-in-patients-with-type-2-diabetes-treated-with-metformin-a-randomised-trial
#10
Amber Parry-Strong, Fali Langdana, Sylvan Haeusler, Mark Weatherall, Jeremy Krebs
UNLABELLED: MAIM: To compare a single 1mg intramuscular hydroxocobalamin injection with a 3-month course of 1mg/day sublingual methylcobalamin supplements on serum vitamin B12 concentrations in participants withtype 2 diabetes treated with metformin. METHOD: Participants on metformin treatment with vitamin B12 concentrations below 220pmol/L were recruited through hospital diabetes clinics and primary care practices. They were randomised to receive either the injection or sublingual treatment...
2016: New Zealand Medical Journal
https://www.readbyqxmd.com/read/27323792/comparison-of-2-population-health-management-approaches-to-increase-vitamin-b12-monitoring-in-patients-taking-metformin
#11
David E Matthews, Stuart J Beatty, Gail M Grever, Amy Lehman, Kelli D Barnes
BACKGROUND: Population health management uses proactive, targeted interventions to improve health outcomes. OBJECTIVES: To compare the effectiveness of and time required for 2 pharmacist-driven population health management interventions to improve vitamin B12 monitoring in patients taking metformin. METHODS: Physicians were randomized to 1 of 2 population health management interventions. For all patients of physicians assigned to the patient portal intervention, a pharmacist communicated need for vitamin B12 monitoring directly to the patient using an electronic patient portal...
October 2016: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/27276084/prevalence-of-vitamin-b12-deficiency-in-type-2-diabetic-patients-using-metformin-a-cross-sectional-study
#12
Charbel Pereira Damião, Amannda Oliveira Rodrigues, Maria Fernanda Miguens Castellar Pinheiro, Rubens Antunes da Cruz Filho, Gilberto Peres Cardoso, Giselle Fernandes Taboada, Giovanna Aparecida Balarini Lima
CONTEXT AND OBJECTIVE: The prevalence of vitamin B12 deficiency varies from 5.8% to 30% among patients undergoing long-term treatment with metformin. Because of the paucity of data on Brazilian patients, this study aimed to determine the frequency of B12 deficiency and related factors among Brazilian patients with type 2 diabetes mellitus (T2DM) using metformin. DESIGN AND SETTING: Cross-sectional study at a public university hospital. METHODS: Patients with T2DM and a control group of non-diabetics were included...
June 3, 2016: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/27190787/association-between-serum-b12-and-serum-homocysteine-levels-in-diabetic-patients-on-metformin
#13
Twinkal R Upadhyay, Nitin Kothari, Hitesh Shah
INTRODUCTION: Type-2 Diabetes Mellitus (T2DM) and metformin both can lower serum B12 (s.B12). Raised serum Homocysteine (s.Hcy) is considered as an early marker of B12 deficiency. AIM: The study aimed to check whether homocysteine levels are more sensitive indicator of s. B12 deficiency or not among diabetics using metformin. MATERIALS AND METHODS: Mean s.B12 and s.Hcy levels of 30 cases (diabetics on metformin <5years) were compared with 30 diabetic controls not on metformin and 31 nondiabetic controls and statistically analysed by ANOVA and post-hoc tests...
April 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27162518/vitamin-b12-levels-in-patients-with-type-2-diabetes-mellitus-on-metformin
#14
K S Akinlade, S O Agbebaku, S K Rahamon, W O Balogun
BACKGROUND: Due to the clinical benefits of metformin, its associated side effects such as vitamin B12 deficiency are usually overlooked and rarely investigated. OBJECTIVE: This study was carried out to determine the serum level of vitamin B12 in Nigerian patients with type 2 diabetes mellitus (T2DM) on metformin. METHODS: Serum vitamin B12 level was determined using high performance liquid chromatography (HPLC) in 81 T2DM patients who have been on metformin for 5 years or more...
December 2015: Annals of Ibadan Postgraduate Medicine
https://www.readbyqxmd.com/read/27130885/association-between-metformin-and-vitamin-b12-deficiency-in-patients-with-type-2-diabetes-a-systematic-review-and-meta-analysis
#15
L E Chapman, A L Darling, J E Brown
AIM: Metformin is the most widely used oral hypoglycaemic drug, but it may lower B12 status, which could have important clinical implications. We undertook a systematic review and meta-analysis of the relationship between metformin use and vitamin B12 deficiency in persons with type 2 diabetes. METHODS: Electronic database searches were undertaken (1st January 1957-1st July 2013) using the Cochrane library, Scopus, CINAHL, Grey literature databases, Pub Med Central, NICE Clinical Guidelines UK, and ongoing clinical trials...
April 26, 2016: Diabetes & Metabolism
https://www.readbyqxmd.com/read/26965381/diabetes-metformin-linked-to-vitamin-b12-deficiency
#16
David Holmes
No abstract text is available yet for this article.
June 2016: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/26914484/vitamin-b12-screening-in-metformin-treated-diabetics-in-primary-care-were-elderly-patients-less-likely-to-be-tested
#17
Yacov Fogelman, Eliezer Kitai, Gari Blumberg, Avivit Golan-Cohen, Micha Rapoport, Eli Carmeli
Low serum B12 level is a common occurrence in patients with type 2 diabetes (T2DM) treated with metformin. There is lack of evidence concerning blood testing of vitamin B12 and current clinical guidelines make no recommendations on the detection or prevention of vitamin B-12 deficiency during metformin treatment. Our objective was to examine the current practice and clinical determinants of vitamin B12 testing in metformin treated T2DM patients. Data were collected from health maintenance organization patients, and consisted of T2DM patients who were newly prescribed metformin from 2008 to 2013...
February 22, 2016: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/26900641/long-term-metformin-use-and-vitamin-b12-deficiency-in-the-diabetes-prevention-program-outcomes-study
#18
Vanita R Aroda, Sharon L Edelstein, Ronald B Goldberg, William C Knowler, Santica M Marcovina, Trevor J Orchard, George A Bray, David S Schade, Marinella G Temprosa, Neil H White, Jill P Crandall
Participants from DPP/DPPOS were assigned to placebo (n=1082) or metformin (n=1073) for 3.2 years, followed by metformin in the metformin group for 9 years. Metformin use was associated with increased risk of vitamin B12 deficiency.
April 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/26816929/opportunistic-screening-of-vitamin-b12-deficiency-in-it-professionals-presenting-for-routine-health-check-up
#19
Jitendra Rajendra Ingole, Rishi Devilal Patel, Sonali Jitendra Ingole, Harshal Tukaram Pandave
INTRODUCTION: Vitamin B12 deficiency is mainly diagnosed in symptomatic patients. However, the deficiency may also be prevalent in asymptomatic patients. Our aim was to study the prevalence of Vit B12 deficiency in IT professionals (Information Technology Professionals from Software industry) who presented for routine health screening and to correlate the deficiency to various parameters. MATERIALS AND METHODS: This was single centre, observational study comprising of 84 IT professionals...
December 2015: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/26408873/effects-of-metformin-plus-gliclazide-versus-metformin-plus-glimepiride-on-cardiovascular-risk-factors-in-patients-with-type-2-diabetes-mellitus
#20
RANDOMIZED CONTROLLED TRIAL
Memy Hegazy Hassan, Gamil Mohamed Abd-Allah
High blood glucose level, lipid profile disturbances and plasma homocysteine (Hcy) are important risk factors for cardiovascular diseases in patients with type 2 diabetes. This study was conducted to evaluate and compare effects of glimepiride/metformin combination versus gliclazide/metformin combination on cardiovascular risk factors in type-2 diabetes mellitus (T2DM) patients. One hundred and eighty T2DM patients were randomly allocated for treatment with placebo (control), metformin (500 mg twice daily), glimepiride (3mg once daily), gliclazide (80 mg once daily), metformin plus glimepiride or metformin plus gliclazide for 3 months...
September 2015: Pakistan Journal of Pharmaceutical Sciences
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