Dracaena arborea alleviates ultra-structural spermatogenic alterations in streptozotocin-induced diabetic rats

BMC Complementary and Alternative Medicine

Albert Kamanyi¹  Horea Matei²  Pierre Watcho²  Stefana Bâlici²  Adrian Florea²  Modeste Wankeu-Nya¹ 

[1]Animal Physiology and Phytopharmacology Laboratory, University of Dschang, P.O. BOX 67, Dschang, Cameroon

[2]Department of Cellular and Molecular Biology, “Iuliu Haţieganu” University of Medicine and Pharmacy, 6 L. Pasteur St, Cluj-Napoca 400359, Romania

关键词: Rats;    Dracaena arborea;    Spermatogenesis;    Testes;    Diabetes;    Streptozotocin;   

Others  :  1230141
DOI  :  10.1186/1472-6882-13-71

 received in 2012-11-02, accepted in 2013-03-26,  发布年份 2013

【 摘 要 】

Background

Infertility is a common complication in diabetic men and experimental animals, mainly due to loss of germ cells by apoptotic cell death. The aim of this study was to evaluate the effects of aqueous and ethanol extracts of Dracaena arborea in streptozotocin-induced ultra-structural spermatogenic alterations in Wistar rats.

Methods

Diabetic animals were orally treated with Millipore water (10 ml/kg), sildenafil citrate (1.44 mg/kg) or Dracaena arborea aqueous (500 mg/kg) and ethanol (100 mg/kg) extracts for three weeks. A group of non diabetic rats received Millipore water (10 ml/kg) and served as healthy control group. Blood glucose was monitored at the beginning and the end of the study. One day after the last treatment, animals were sacrificed and the testes immediately removed were morphologically observed and prepared for electron microscopy analysis of spermatogenesis.

Results

Our results showed that Dracaena arborea was devoid of any anti-hyperglycemic activity. In the untreated diabetic rats, hyperglycemia severely damaged the testes morphology as well as the spermatogenic process as evidenced by the: thickness of basement membrane of the seminiferous tubule; mitochondria alteration; abnormal spermatocyte cells displaying polymorphous nuclei, cytoplasmic vacuolization and necrosis; and disorganization and degeneration of sperm germ cells. Administration of sildenafil citrate and Dracaena arborea extracts to the diabetic rats improved testes morphology and reversed, although not completely, the impairment of spermatogenesis; this alleviating effect was more pronounced in animals treated with the aqueous extract (500 mg/kg) of Dracaena arborea.

Conclusion

Dracaena arborea improves testes morphology and restores spermatogenesis in type 1 diabetic rats, without having major anti-hyperglycemic properties. These effects could be attributed to saponins, flavonoids, phenols and sterols revealed in this plant, which could be a useful component in the treatment of diabetes-induced testicular dysfunction.

【 授权许可】

   
2013 Wankeu-Nya et al.; licensee BioMed Central Ltd.

【 图 表 】

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