Treatment FAQ

how to use metformin for research purpose in rat for treatment of diabetes

by Sanford Brown V Published 2 years ago Updated 2 years ago
image

Methods: Metformin (100 mg/kg) was administered intravenously and orally to the control rats, DMIA rats, and DMIA rats with insulin treatment for 3 weeks (DMIA rats with insulin). Results: After intravenous administration of metformin to the DMIA rats, the CLR and CLNR of the drug were significantly slower than the controls.

Full Answer

How effective is metformin for the treatment of diabetes?

Jan 01, 1987 · Metformin, a biguanide antidiabetic agent that can be administered either alone or in combination with sulfonylureas, has been extensively used in Europe and Canada. The mechanism of action of metformin and other biguanides is not completely understood, but recent in vitro and in vivo studies suggest that metformin may act in part by both ...

What is metformin used for?

Jan 11, 2021 · For diabetes induction, rats were intraperitoneally (i.p.) injected with a single dose of STZ (80 mg/kg) . For HCC induction, rats were i.p. injected with DEN (50 mg/kg) (Sigma, St. Louis, MO, USA) once weekly for seven weeks . For MET treatment, rats were treated by gavage with 150 mg/kg each other day for 102 days.

How does metformin affect insulin sensitivity?

Diabetes mellitus. Metformin is primarily used for the treatment of type 2 diabetes mellitus, particularly in obese.patients. Metformin has been shown to reduce diabetes mortality and complications by thirty percent compared to insulin, glibenclamide and chlorpropamide.[] Metformin reduces serum glucose level by several different mechanisms, notably through …

How does metformin (biguanide derivative) treat hyperglycemia?

Metformin is one of the most popular oral glucose-lowering medications, widely considered to be the optimal initial therapy for patients with type 2 diabetes mellitus. Interestingly, there still remains controversy regarding the drug's precise mechanism of action, which is thought to involve a reduction in hepatic glucose production.

image

Why is metformin The best treatment for diabetes?

Metformin has been used successfully since the 1950s as first line pharmacotherapy to treat people with type 2 diabetes. It is a biguanide that decreases blood glucose concentration by mechanisms different from those of insulin secretagogues, such as sulphonylureas, or exogenous insulin therapy.

What is the method of action for metformin?

The centre of metformin's mechanism of action is the alteration of the energy metabolism of the cell. Metformin exerts its prevailing, glucose-lowering effect by inhibiting hepatic gluconeogenesis and opposing the action of glucagon.Jan 7, 2014

Why is metformin recommended as first line therapy What's the evidence for its use?

The UKPDS results, including glycemic-lowering efficacy, the weight benefits, the low risk for hypoglycemia, and the reduction in macrovascular complications, led to metformin becoming the preferred first-line therapy for treatment of type 2 diabetes.Jan 13, 2021

Why are rats used in diabetes research?

Goto–Kakizaki (GK) rats were created by a Japanese group by repetitive breeding of Wistar rats with the poorest glucose tolerance (Goto et al., 1976). This leads to the development of a lean model of type 2 diabetes, which is characterized by glucose intolerance and defective glucose-induced insulin secretion.

What are the indications for metformin?

Metformin also has several non-FDA-approved indications, including gestational diabetes, management of antipsychotic-induced weight gain, type 2 diabetes prevention, and the treatment and prevention of polycystic ovary syndrome (PCOS). Currently, metformin is the only ADA-recommended antidiabetic for pre-diabetes.Dec 25, 2021

How is metformin cleared?

Metformin is not metabolized [5] and is excreted unchanged in the urine, with a half-life of ~5 h [6]. The population mean for renal clearance (CLr) is 510±120 ml/min. Active tubular secretion in the kidney is the principal route of metformin elimination.

What characteristics of metformin make it the preferred choice as a first therapy?

Metformin is recommended as the first-line drug of choice for several reasons, including its efficacy, tolerability, safety and cost-effectiveness.Feb 9, 2017

When is metformin recommended?

Metformin is a commonly recommended initial medication for patients with type 2 diabetes who have mild to moderately uncontrolled blood glucose. In addition, it is sometimes used to prevent diabetes in patients who are at risk of developing the disease (though it is not FDA approved for prediabetes).

What evidence exists to show that metformin is effective?

The best evidence for a potential role for metformin in the prevention of type 2 diabetes comes from The Diabetes Prevention Program (DPP) trial. Lifestyle intervention and metformin reduced diabetes incidence by 58% and 31%, respectively, when compared with placebo [7].Feb 15, 2013

How do rats induce type 2 diabetes?

Methods: Wistar rats were fed with a high-fat diet for 8 weeks followed by a one-time injection of 25 or 35 mg/kg streptozotocin to induce type 2 diabetes. Then the diabetic rats were fed with regular diet/high-fat diet for 4 weeks. Changes in biochemical parameters were monitored during the 4 weeks.

How do you induce experimental diabetes mellitus?

Experimental diabetes can be induced in animals by pancreatectomy or injection of β-cell toxins such as streptozotocin or alloxan. There is a genetically obese strain of diabetic (db/db) mice.

How do rats induce streptozotocin in diabetes?

For induction of experimental diabetes in male adult rats weighted 250-300 grams (75-90 days), 60mg/kg of Streptozotocin was injected intravenously. Three days after degeneration of beta cells, diabetes was induced in all animals.

Does metformin reduce atherosclerosis?

Recent findings suggest metformin may reduce atherosclerosis development in men.

What is the largest and longest clinical trial of metformin?

The largest and longest clinical trial of metformin for the prevention of diabetes is the Diabetes Prevention Program/Diabetes Prevention Program Outcomes Study (DPP/DPPOS). In this review, we summarise data from the DPP/DPPOS, focusing on metformin for diabetes prevention, as well as its long-term glycaemic and cardiometabolic effects and safety in people at high-risk of developing diabetes. The DPP (1996-2001) was a RCT of 3234 adults who, at baseline, were at high-risk of developing diabetes. Participants were assigned to masked placebo (n = 1082) or metformin (n = 1073) 850 mg twice daily, or intensive lifestyle intervention (n = 1079). The masked metformin/placebo intervention phase ended approximately 1 year ahead of schedule because of demonstrated efficacy. Primary outcome was reported at 2.8 years. At the end of the DPP, all participants were offered lifestyle education and 88% (n = 2776) of the surviving DPP cohort continued follow-up in the DPPOS. Participants originally assigned to metformin continued to receive metformin, unmasked. The DPP/DPPOS cohort has now been followed for over 15 years with prospective assessment of glycaemic, cardiometabolic, health economic and safety outcomes. After an average follow-up of 2.8 years, metformin reduced the incidence of diabetes by 31% compared with placebo, with a greater effect in those who were more obese, had a higher fasting glucose or a history of gestational diabetes. The DPPOS addressed the longer-term effects of metformin, showing a risk reduction of 18% over 10 and 15 years post-randomisation. Metformin treatment for diabetes prevention was estimated to be cost-saving. At 15 years, lack of progression to diabetes was associated with a 28% lower risk of microvascular complications across treatment arms, a reduction that was no different among treatment groups. Recent findings suggest metformin may reduce atherosclerosis development in men. Originally used for the treatment of type 2 diabetes, metformin, now proven to prevent or delay diabetes, may serve as an important tool in battling the growing diabetes epidemic. Long-term follow-up, currently underway in the DPP/DPPOS, is now evaluating metformin's potential role, when started early in the spectrum of dysglycaemia, on later-stage comorbidities, including cardiovascular disease and cancer.

Is metformin safe for diabetics?

Decades of clinical use have demonstrated that metformin is generally well-tolerated and safe. We have reviewed in detail the evidence base supporting the therapeutic use of metformin for diabetes prevention.

Does metformin help with weight loss?

However, lifestyle interventions are difficult for patients to maintain and the weight loss achieved tends to be regained over time. Metformin enhances the action of insulin in liver and skeletal muscle, and its efficacy for delaying or preventing the onset of diabetes has been proven in large, well-designed, randomised trials, ...

image
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9