How does streptozotocin induce diabetes in mice?

The multiple, low-dose STZ approach is now widely used to produce an animal model of T1DM (Wu & Huan, 2007). Using this protocol, diabetes is induced by the administration of multiple, low doses of STZ (40 mg/kg, intraperitoneally, i.p.) to mice on 5 consecutive days.

How do you make a diabetic mouse?

To induce diabetes, animals of both sexes received daily intraperitoneal (i.p.) injection of STZ for 5 consecutive days at 55 mg/kg BW (a dose that is known to induce diabetes in male mice) or for females, 75 mg/kg BW of STZ.

What is STZ model?

Streptozotocin (STZ) is an antibiotic that produces pancreatic islet β-cell destruction and is widely used experimentally to produce a model of type 1 diabetes mellitus (T1DM). Detailed in this unit are protocols for producing STZ-induced insulin deficiency and hyperglycemia in mice and rats.

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.

How do you induce streptozotocin?

Type 1 diabetes can be induced in rodents by a single STZ injection,9,10 while type 2 diabetes can be induced by at least three approaches, which include STZ injection after administration of nicotinamide,11,12 high fat diet (HFD) feeding followed by a low-dose STZ injection,13 and STZ injection during the neonatal …

What is streptozotocin injection?

STZ is a broad-spectrum antibiotic that is toxic to the insulin producing β cells of pancreatic islets. It is currently used clinically for the treatment of metastatic islet cell carcinoma of the pancreas [12] and has been used investigationally in a wide variety of large and small animal species [2–5, 13–17].

What is streptozotocin used for?

Streptozotocin is approved by the U.S. Food and Drug Administration (FDA) for treating metastatic cancer of the pancreatic islet cells. Since it carries a substantial risk of toxicity and rarely cures the cancer, its use is generally limited to patients whose cancer cannot be removed by surgery.

Where is streptozotocin found?

Streptozotocin (STZ) is a naturally occurring chemical derived from Streptomyces achromogenes that is particularly toxic to the insulin-producing beta cells of the pancreas in mammals.

Is streptozotocin a drug?

Repurposing nonantibiotic drugs as antibacterials Streptozotocin, produced by Streptomyces achromogenes, is an antineoplastic agent approved by US FDA in 1982 for the treatment of metastatic cancers of pancreatic islet of langerhans.

Does streptozotocin induce diabetes in mice?

Abstract Diabetes is induced in mice by using streptozotocin (STZ), a compound that has a preferential toxicity toward pancreatic β cells. We evaluated nude male mice from various sources for their sensitivity to a single high dose (160 to 240 mg/kg) of STZ.

Is there any animal model of diabetes other than mice?

Besides diabetic mice models, STZ-induced rat model is also one of the earliest animal models of this condition, which is not used as commonly as the mouse model though. Both type 1 and type 2 diabetic mice models can be obtained either through single high dose of STZ injection in adult rats or through immediate injection of STZ in neonatal rats.

What is the best model for STZ-induced diabetes?

The most widely used STZ-induced diabetic model is elicited in mice. Multiple administrations of low-dose STZ are employed to produce diabetic mice. This model has three major advantages. Firstly, it closely resembles human type 1 diabetes with chronic pancreatic islet inflammation, insulitis, and insulin deficiency.

Does diabetes induction affect the effectiveness of STZ treatment in mice?

In using the model, we were confronted with variable but sometimes severe and frequent adverse side effects in our mice, resulting in a small window between effective diabetes induction and complications of STZ treatment.

What type of diabetes does streptozotocin induce?

Abstract. Streptozotocin (STZ) is an antibiotic that produces pancreatic islet β-cell destruction and is widely used experimentally to produce a model of type 1 diabetes mellitus (T1DM). Detailed in this unit are protocols for producing STZ-induced insulin deficiency and hyperglycemia in mice and rats.

How do you induce diabetes in mice?

Diabetes is induced in mice by using streptozotocin (STZ), a compound that has a preferential toxicity toward pancreatic β cells.

What are the effects of streptozotocin in experimental animals particularly rodents?

A single intravenous streptozotocin injection (75 mg/kg) into fasted animals causes a decrease in insulin levels, hyperglycemia, an increase in serum free fatty acids, and an elevation in hepatic glucose-6-phosphatase activity.

What is alloxan induced diabetes?

Alloxan-induced diabetes is a form of insulin-dependent diabetes mellitus that occurs as a result of alloxan administration or injection to animals [78], [79]. It has been successfully induced in a variety of animal species; rabbits, mice, rats, monkeys, cats and dogs [80], [81].

Can mice develop diabetes?

The endocrine system of mice is similar to that of humans, so mice can develop both type 1 and type 2 diabetes. Autoimmune destruction of the pancreatic beta cells leading to lack of insulin production is the main characteristic of type 1 diabetes.

How does alloxan induce diabetes in rats?

Anti-diabetic Activity in Alloxan Induced Diabetes Model Diabetes was induced in 80 male albino rats by injecting 120 mg/kg of Alloxan monohydrate intra-peritoneally dissolved in 0.9% w/v cold normal saline to overnight-fasted rats (12 h).

Can alloxan induced type 2 diabetes in rats?

2. Alloxan-induced diabetes. Alloxan-induced diabetes is a form of insulin-dependent diabetes mellitus that occurs as a result of alloxan administration or injection to animals [78], [79]. It has been successfully induced in a variety of animal species; rabbits, mice, rats, monkeys, cats and dogs [80], [81].

Does streptozotocin cause diabetes mellitus?

Streptozotocin-induced diabetic models in mice and rats Streptozotocin (STZ) is an antibiotic that can cause pancreatic β-cell destruction, so it is widely used experimentally as an agent capable of inducing insulin-dependent diabetes mellitus (IDDM), also known as type 1 diabetes mellitus (T1DM).

What is streptozotocin (STZ)?

Streptozotocin (STZ) is an antibiotic that can cause pancreatic β-cell destruction, so it is widely used experimentally as an agent capable of inducing insulin-dependent diabetes mellitus (IDDM), also known as type 1 diabetes mellitus (T1DM). This unit describes protocols for the production of insul …

How much STZ do you give a diabetic mouse?

Diabetes induction and animal monitoring. The mice were injected intraperitoneally with a single high dose of 160 to 240 mg/kg STZ. We used a pharmaceutical-grade formulation of STZ (Zanosar Teva Pharmaceuticals, Irvine, CA) to avoid impurities that may have harmful biologic activities.