ArticleThe New England journal of medicine1995
Metabolic effects of metformin in non-insulin-dependent diabetes mellitus.
Article in The New England journal of medicine, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 4 registered trials, which are not on this map. Cited by 283 papers, 9 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Effectiveness of the Treatment With Dapagliflozin and Metformin Compared to Metformin Monotherapy for Weight Loss on Diabetic and Prediabetic Patients With Obesity Class III
Adaptive Study for Efficacy and Safety of Metformin Glycinate for the Treatment of Patients With MS and DM2, Hospitalized With Severe Acute Respiratory Syndrome Secondary to SARS-CoV-2. Randomized, Double-Blind, Phase IIIb.
Gastric Tolerability and Pharmacokinetics of an Extended Release Metformin and an Immediate Release Metformin
Glycemic Regulation as Endometriosis Adjunct Treatment
Who cites it
283 citing papers in PubMed, 9 syntheses or guidelines pooled it, 1,140 citations in OpenAlex.
- The effect of metformin in clinical studies on knee osteoarthritis: an updated systematic review and meta-analysis.Frontiers in medicine · 2025Pooled it
- The effects of subcutaneous Tirzepatide on obesity and overweight: a systematic review and meta-regression analysis of randomized controlled trials.Frontiers in endocrinology · 2023Pooled it
- Interventions to prevent women from developing gestational diabetes mellitus: an overview of Cochrane Reviews.The Cochrane database of systematic reviews · 2020Pooled it
- The effect of metformin on biomarkers associated with breast cancer outcomes: a systematic review, meta-analysis, and dose-response of randomized clinical trials.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2020 · on this mapPooled it
- The Association between Metformin Therapy and Lactic Acidosis.Drug safety · 2019Pooled it
- Efficacy of DPP-4 inhibitors, GLP-1 analogues, and SGLT2 inhibitors as add-ons to metformin monotherapy in T2DM patients: a model-based meta-analysis.British journal of clinical pharmacology · 2019Pooled it
- Meta- and cross-species analyses of insulin resistance based on gene expression datasets in human white adipose tissues.Scientific reports · 2018Pooled it
- 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.The Cochrane database of systematic reviews · 2017 · on this mapPooled it
- Pooled it
- Glycemia and Gluconeogenesis With Metformin and Liraglutide: A Randomized Trial in Youth-onset Type 2 Diabetes.The Journal of clinical endocrinology and metabolism · 2024Trial
- A randomized controlled trial of metformin in women with components of metabolic syndrome: intervention feasibility and effects on adiposity and breast density.Breast cancer research and treatment · 2021Trial
- Metformin Lowers Body Weight But Fails to Increase Insulin Sensitivity in Chronic Heart Failure Patients without Diabetes: a Randomized, Double-Blind, Placebo-Controlled Study.Cardiovascular drugs and therapy · 2021Trial
- Effects of Metformin on Left Ventricular Size and Function in Hypertensive Patients with Type 2 Diabetes Mellitus: Results of a Randomized, Controlled, Multicenter, Phase IV Trial.American journal of cardiovascular drugs : drugs, devices, and other interventions · 2020Trial
- Long-Term Weight Loss With Metformin or Lifestyle Intervention in the Diabetes Prevention Program Outcomes Study.Annals of internal medicine · 2019Trial
- 18F-FDG uptake in the colon is modulated by metformin but not associated with core body temperature and energy expenditure.PloS one · 2017Trial
- Glucose Control in Severely Burned Patients Using Metformin: An Interim Safety and Efficacy Analysis of a Phase II Randomized Controlled Trial.Annals of surgery · 2016Trial
- Phase II study of metformin for reduction of obesity-associated breast cancer risk: a randomized controlled trial protocol.BMC cancer · 2016Trial
- Metformin in severe exacerbations of chronic obstructive pulmonary disease: a randomised controlled trial.Thorax · 2016Trial
- Hyperglucagonemia Mitigates the Effect of Metformin on Glucose Production in Prediabetes.Cell reports · 2016Trial
- Effect of insulin sensitizer therapy on amino acids and their metabolites.Metabolism: clinical and experimental · 2015Trial
223 more citing papers are in PubMed but not listed here.
Corrections and comments
- Commented on byMetformin.1995
Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
backgroundThe metabolic effects and mechanism of action of metformin are still poorly understood, despite the fact that it has been used to treat patients with non-insulin-dependent diabetes mellitus (NIDDM) for more than 30 years.
methodsIn 10 obese patients with NIDDM, we used a combination of isotope dilution, indirect calorimetry, bioimpedance, and tissue-balance techniques to assess the effects of metformin on systemic lactate, glucose, and free-fatty-acid turnover; lactate oxidation and the conversion of lactate to glucose; skeletal-muscle glucose and lactate metabolism; body composition; and energy expenditure before and after four months of treatment.
resultsMetformin treatment decreased the mean (+/- SD) glycosylated hemoglobin value from 13.2 +/- 2.2 percent to 10.5 +/- 1.6 percent (P < 0.001) and reduced fasting plasma glucose concentrations from 220 +/- 41 to 155 +/- 28 mg per deciliter (12.2 +/- 0.7 to 8.6 +/- 0.5 mmol per liter) (P < 0.001). Although resting energy expenditure did not change, the patients lost 2.7 +/- 1.3 kg of weight (P < 0.001), 88 percent of which was adipose tissue. The mean (+/- SE) rate of plasma glucose turnover (hepatic glucose output and systemic glucose disposal) decreased from 2.8 +/- 0.2 to 2.0 +/- 0.2 mg per kilogram of body weight per minute (15.3 +/- 0.9 to 10.8 +/- 0.9 mumol per kilogram per minute) (P < 0.001), as a result of a decrease in hepatic glucose output; systemic glucose clearance did not change. The rate of conversion of lactate to glucose (gluconeogenesis) decreased by 37 percent (P < 0.001), whereas lactate oxidation increased by 25 percent (P < 0.001). There were no changes in the plasma lactate concentration, plasma lactate turnover, muscle lactate release, plasma free-fatty-acid turnover, or uptake of glucose by muscle.
conclusionsMetformin acts primarily by decreasing hepatic glucose output, largely by inhibiting gluconeogenesis. It also seems to induce weight loss, preferentially involving adipose tissue.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.