Evaluation of sex steroid hormones and reproductive irregularities in diethyl phthalate exposed premature mice: modulatory effect of raw honey against potential anomalies

Abstract

Phthalates, plasticizing chemicals are top-rated environmental contaminants. Diethyl phthalate (DEP), a chief member of this family was declared a potent endocrine-disruptor and carcinogen in animals and humans. The current study was designed to explore the probable reproductive damage induced by DEP and the therapeutic efficacy of raw honey in male albino mice. Four weeks old 50 male mice, were randomized equally in five groups, as control (C) received 0.1 ml distilled water; vehicle control (VC) received 0.1 ml corn oil; DEP (3mg/g/BW) dissolved in corn oil; Honey control (HC) administered 0.2 mg/g/day); P + H administered with DEP and honey (3mg and 0.2 mg/g/BW/day respectively). Mice were treated through oral gavage for 54 days routinely, acclimatized for 6 days and dissected. In the first instance, the antioxidant potential and total phenolic contents of honey were analyzed through Ferric reducing antioxidant power assay and Folin-Ciocalteu assay to confirm the antioxidant capacity of honey. The morphological, morphometric, histological, micrometric, sperm count, hormonal analyses, and antioxidant capacity test in tissue homogenates were conducted by using tissues (testis, epididymis) and blood samples of mice. Mice exposed to DEP have a significant increase in body weight, LH level, seminiferous tubule lumen diameter and decrease in the gonado-somatic index, testosterone level, sperm count, and seminiferous tubule diameter. Additionally, histopathology of testes showed interstitial spaces dilations, exfoliations, Leydig cells atrophy, germ cell degenerations and spermatid retention in DEP exposed testes sections. However, concomitant use of honey and DEP had shown a significant improvement in histopathological lesions, steroid hormone levels, and healthy sperm count. By these results, it is concluded that honey possessed antioxidant potential that can efficiently protect DEP-induced anomalies in male mice.