Biomaterial Database

Effects of hexafluoroacetone on Leydig cell steroidogenesis and spermatogenesis in the rat. 1985

P J Gillies, and K P Lee

Steroidogenesis was investigated in Leydig cell-enriched fractions isolated from the testes of rats dosed dermally with 130 mg/kg/day hexafluoroacetone (HFA) for 14 days and from pair-fed control rats. Compared to controls, Leydig cells from HFA-treated rats exhibited decreased incorporation of [14C]acetate (78%) and [3H]mevalonate (41%) into sterols and steroids. Testosterone was decreased 50% in the testes of HFA-treated rats. Incubation of Leydig cells from untreated rats with 1.0 mM HFA did not affect steroidogenesis. HFA treatment led to the development of histopathological lesions in the testes within 24 hr after a single dose; with daily dosing the lesions became progressively more severe. Despite the development of severe lesions, HFA treatment did not affect the blood levels of luteinizing hormone or testosterone; however, follicle-stimulating hormone was slightly elevated (48%) after 14 days of treatment. The data indicate that steroidogenesis is inhibited in Leydig cells of HFA-treated rats; the inhibition is not due to a direct or immediate effect of HFA, nor does it appear to be hormonally mediated.

UI	MeSH Term	Description	Entries
D007985	Leydig Cells	Steroid-producing cells in the interstitial tissue of the TESTIS. They are under the regulation of PITUITARY HORMONES; LUTEINIZING HORMONE; or interstitial cell-stimulating hormone. TESTOSTERONE is the major androgen (ANDROGENS) produced.	Interstitial Cells, Testicular,Leydig Cell,Testicular Interstitial Cell,Testicular Interstitial Cells,Cell, Leydig,Cell, Testicular Interstitial,Cells, Leydig,Cells, Testicular Interstitial,Interstitial Cell, Testicular
D007986	Luteinizing Hormone	A major gonadotropin secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Luteinizing hormone regulates steroid production by the interstitial cells of the TESTIS and the OVARY. The preovulatory LUTEINIZING HORMONE surge in females induces OVULATION, and subsequent LUTEINIZATION of the follicle. LUTEINIZING HORMONE consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is common in the three pituitary glycoprotein hormones (TSH, LH and FSH), but the beta subunit is unique and confers its biological specificity.	ICSH (Interstitial Cell Stimulating Hormone),Interstitial Cell-Stimulating Hormone,LH (Luteinizing Hormone),Lutropin,Luteoziman,Luteozyman,Hormone, Interstitial Cell-Stimulating,Hormone, Luteinizing,Interstitial Cell Stimulating Hormone
D008297	Male		Males
D008798	Mevalonic Acid	A dihydroxy monocarboxylic acid and precursor in the biosynthetic pathway known as the mevalonate pathway, which produces terpenes and steroids that are vital for diverse cellular functions.	Mevalonate,Acid, Mevalonic
D002784	Cholesterol	The principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils.	Epicholesterol
D005466	Fluorocarbons	Liquid perfluorinated carbon compounds which may or may not contain a hetero atom such as nitrogen, oxygen or sulfur, but do not contain another halogen or hydrogen atom. This concept includes fluorocarbon emulsions, and fluorocarbon blood substitutes. Perfluorinated and related polyfluorinated chemicals are referred to as PFAS and are defined as chemicals with at least two adjacent carbon atoms, where one carbon is fully fluorinated and the other is at least partially fluorinated.	Fluorocarbon,Fluorocarbon Emulsion,Fluorocarbon Emulsions,Fluorotelomer Phosphate Esters,N-Alkyl Perfluoroalkyl Sulfonamido Carboxylates,PFAS Per- and Polyfluoroalkyl Substances,PFC Perfluorinated Chemicals,PFECAs Perfluoropolyether Carboxylic Acids,Per- and Polyfluoroalkyl Substances,Perfluoroalkane Sulfonamides,Perfluoroalkyl Carboxylates,Perfluoroalkyl Ether Carboxylates,Perfluoroalkyl Polyether Carboxylates,Perfluorocarbon,Perfluorocarbons,Perfluoropolyether Carboxylic Acids,Polyfluorocarbons,Fluorinated Telomer Alcohols,Fluoro-Telomer Alcohols,Polyfluorinated Telomer Alcohols,Telomer Fluorocarbons,Acids, Perfluoropolyether Carboxylic,Alcohols, Fluorinated Telomer,Alcohols, Fluoro-Telomer,Alcohols, Polyfluorinated Telomer,Carboxylates, Perfluoroalkyl,Carboxylates, Perfluoroalkyl Ether,Carboxylates, Perfluoroalkyl Polyether,Carboxylic Acids, Perfluoropolyether,Chemicals, PFC Perfluorinated,Emulsion, Fluorocarbon,Emulsions, Fluorocarbon,Esters, Fluorotelomer Phosphate,Ether Carboxylates, Perfluoroalkyl,Fluoro Telomer Alcohols,Fluorocarbons, Telomer,N Alkyl Perfluoroalkyl Sulfonamido Carboxylates,PFAS Per and Polyfluoroalkyl Substances,Per and Polyfluoroalkyl Substances,Perfluorinated Chemicals, PFC,Phosphate Esters, Fluorotelomer,Polyether Carboxylates, Perfluoroalkyl,Sulfonamides, Perfluoroalkane,Telomer Alcohols, Fluorinated,Telomer Alcohols, Polyfluorinated
D005640	Follicle Stimulating Hormone	A major gonadotropin secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). Follicle-stimulating hormone stimulates GAMETOGENESIS and the supporting cells such as the ovarian GRANULOSA CELLS, the testicular SERTOLI CELLS, and LEYDIG CELLS. FSH consists of two noncovalently linked subunits, alpha and beta. Within a species, the alpha subunit is common in the three pituitary glycoprotein hormones (TSH, LH, and FSH), but the beta subunit is unique and confers its biological specificity.	FSH (Follicle Stimulating Hormone),Follicle-Stimulating Hormone,Follitropin
D000085	Acetates	Derivatives of ACETIC ACID. Included under this heading are a broad variety of acid forms, salts, esters, and amides that contain the carboxymethane structure.	Acetate,Acetic Acid Esters,Acetic Acids,Acids, Acetic,Esters, Acetic Acid
D000096	Acetone	A colorless liquid used as a solvent and an antiseptic. It is one of the ketone bodies produced during ketoacidosis.
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia