Evaluation of an oral insulin formulation in normal and diabetic rats.

Indian J Pharmacol

Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Shahid Chamran University, Ahvaz, Iran.

Published: January 2012

Aim: As injection is not an ideal means for insulin delivery, various attempts have been made to administer insulin orally until now. The development of an oral dosage form of insulin would help diabetic patients and make the treatment more convenient. The aim of the present study is to evaluate the effectiveness of an oral insulin formulation containing polar and non-polar ingredients.

Materials And Methods: New excipient for oral insulin administration in normal and diabetic rats was evaluated by measuring blood glucose concentrations in two groups (10 rats each) of normal and streptozotocin-induced diabetic rats. Oral insulin was administrated and blood glucose was measured by glucometer at 0, 1, 2, 3 and 4 h post-feeding. The data was compared by Student's t test.

Results: Oral insulin formulation significantly (P<0.05) reduced blood glucose from 100 mg/dl to 33.73 mg/dl and 451.66 mg/dl to 200.83 mg/dl at 4 h in normal and diabetic rats, respectively.

Conclusion: The novel excipient used could protect insulin from gastric and pancreatic enzymes and reduce blood glucose concentration in both healthy and diabetic rats suggesting that oral delivery of insulin is feasible in a near future.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3271511PMC
http://dx.doi.org/10.4103/0253-7613.91879DOI Listing

Publication Analysis

Top Keywords

oral insulin
20
insulin formulation
12
diabetic rats
12
insulin
8
normal diabetic
8
blood glucose
8
oral
5
evaluation oral
4
formulation normal
4
diabetic
4

Similar Publications

Background: Subjects with metabolic syndrome and obesity have higher levels of inflammation with depression of the vitamin D (VD) hydroxylase/metabolising genes () required to convert VD consumed in the diet into 25(OH)VD. Compared with total 25(OH)VD levels, measurement of bioavailable 25(OH)VD is a better method to determine the beneficial effect of VD.

Objective: This study investigates whether cosupplementation with VD and L-cysteine (LC), which downregulates inflammation and upregulates VD-regulating genes, provides a better therapeutic benefit than supplementation with VD-alone in African Americans (AA).

View Article and Find Full Text PDF

Background: The prevalence of gestational diabetes mellitus (GDM) is dependent on the diagnostic criteria used and there is no consensus on screening methods and diagnostic criteria. The International Association for Diabetes in Pregnancy Study Group (IADPSG) recently put forward new diagnostic criteria and encourages its adoption worldwide. The aim of this study was to determine the incidence of GDM and to compare the foeto-maternal outcomes of women diagnosed with GDM in the Federal Medical Centre, Yenagoa using the WHO 1999 and IADPSG criteria.

View Article and Find Full Text PDF

Growth hormone (GH) secretion by the pituitary is regulated by stimulatory and inhibitory pathways such as growth hormone releasing hormone (GHRH) and somatostatin, respectively, being also modulated by different neurotransmitters acting at the hypothalamic/pituitary level. The pineal gland hormone melatonin regulates GH secretion in many mammals, including humans, although its role in modulating GH secretion has been debated. We describe the case of a young woman chronically taking melatonin for sleep disturbances, referring to her general practitioner for flushing that appeared just after starting melatonin intake.

View Article and Find Full Text PDF

Slowly progressive type 1 diabetes mellitus (SPIDDM), solely positive for zinc transporter 8 autoantibody (ZnT8A) is rare, and the factors involved in the single positivity remain largely unknown. Thus, this case report aimed to infer the factors based on a literature review. A 40-year-old female was hospitalized for hyperglycemia.

View Article and Find Full Text PDF

Objective: To evaluate the effects of a combination of carnitines, L-arginine, L-cysteine and myo-inositol on metabolic and reproductive parameters in PCOS overweight/obese patients.

Methods: This was a retrospective study analyzing information of a group of PCOS ( = 25) overweight/obesity patients, not requiring hormonal treatment, selected from the database of the ambulatory clinic of the Gynecological Endocrinology Center at the University of Modena and Reggio Emilia, Modena, Italy. The hormonal profile, routine exams and insulin and C-peptide response to oral glucose tolerance test (OGTT) were evaluated before and after 12 weeks of a daily oral complementary treatment with L-carnitine (500 mg), acetyl-L-carnitine (250 mg), L-arginine (500 mg), L-cysteine (100 mg) and myo-inositol (1 gr).

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!