Biomaterial Database

GnRH agonist induces apoptosis in seminiferous tubules of immature rats: direct gonadal action. 2010

T Peirouvi, and S Salami

Department of Histology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran.

To investigate direct gonadal effect of buserelin as an agonist of gonadotrophin releasing hormone, the incidence of apoptotic cell death was measured. Thirty 25-day-old immature Wistar male rats were divided into two groups: treated and control rats. Treated rats were given 1.25 mg buserelin acetate/g body weight control rats received vehicle subcutaneously for 5 days. Formalin-fixed paraffin embedded testicles were then investigated for the morphology of seminiferous tubules and occurrence of apoptosis using haematoxylin-eosin staining and terminal deoxynucleotidyl transferase-mediated dUTP nick-end labelling respectively. Immaturity of rats was proved by the morphological characteristics of testis. In contrast to the control rats, significant increase of apoptotic cell death was found in buserelin-treated rats. Apart from the well-known pituitary-testicular function of buserelin as an agonist of gonadotrophin releasing hormone, our findings suggest that it induces apoptotic cell death via direct gonadal action.

UI	MeSH Term	Description	Entries
D007987	Gonadotropin-Releasing Hormone	A decapeptide that stimulates the synthesis and secretion of both pituitary gonadotropins, LUTEINIZING HORMONE and FOLLICLE STIMULATING HORMONE. GnRH is produced by neurons in the septum PREOPTIC AREA of the HYPOTHALAMUS and released into the pituitary portal blood, leading to stimulation of GONADOTROPHS in the ANTERIOR PITUITARY GLAND.	FSH-Releasing Hormone,GnRH,Gonadoliberin,Gonadorelin,LH-FSH Releasing Hormone,LHRH,Luliberin,Luteinizing Hormone-Releasing Hormone,Cystorelin,Dirigestran,Factrel,Gn-RH,Gonadorelin Acetate,Gonadorelin Hydrochloride,Kryptocur,LFRH,LH-RH,LH-Releasing Hormone,LHFSH Releasing Hormone,LHFSHRH,FSH Releasing Hormone,Gonadotropin Releasing Hormone,LH FSH Releasing Hormone,LH Releasing Hormone,Luteinizing Hormone Releasing Hormone,Releasing Hormone, LHFSH
D008297	Male		Males
D002064	Buserelin	A potent synthetic analog of GONADOTROPIN-RELEASING HORMONE with D-serine substitution at residue 6, glycine10 deletion, and other modifications.	Bigonist,Buserelin Acetate,HOE-766,Profact,Receptal,Suprecur,Suprefact,Tiloryth,Acetate, Buserelin,HOE 766,HOE766
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
D012671	Seminiferous Tubules	The convoluted tubules in the TESTIS where sperm are produced (SPERMATOGENESIS) and conveyed to the RETE TESTIS. Spermatogenic tubules are composed of developing germ cells and the supporting SERTOLI CELLS.	Seminiferous Tubule,Tubule, Seminiferous,Tubules, Seminiferous
D013090	Spermatocytes	Male germ cells derived from SPERMATOGONIA. The euploid primary spermatocytes undergo MEIOSIS and give rise to the haploid secondary spermatocytes which in turn give rise to SPERMATIDS.	Spermiocytes,Spermatocyte,Spermiocyte
D017208	Rats, Wistar	A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain.	Wistar Rat,Rat, Wistar,Wistar Rats
D017209	Apoptosis	A regulated cell death mechanism characterized by distinctive morphologic changes in the nucleus and cytoplasm, including the endonucleolytic cleavage of genomic DNA, at regularly spaced, internucleosomal sites, i.e., DNA FRAGMENTATION. It is genetically programmed and serves as a balance to mitosis in regulating the size of animal tissues and in mediating pathologic processes associated with tumor growth.	Apoptosis, Extrinsic Pathway,Apoptosis, Intrinsic Pathway,Caspase-Dependent Apoptosis,Classic Apoptosis,Classical Apoptosis,Programmed Cell Death,Programmed Cell Death, Type I,Apoptoses, Extrinsic Pathway,Apoptoses, Intrinsic Pathway,Apoptosis, Caspase-Dependent,Apoptosis, Classic,Apoptosis, Classical,Caspase Dependent Apoptosis,Cell Death, Programmed,Classic Apoptoses,Extrinsic Pathway Apoptoses,Extrinsic Pathway Apoptosis,Intrinsic Pathway Apoptoses,Intrinsic Pathway Apoptosis
D051381	Rats	The common name for the genus Rattus.	Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus
D020287	In Situ Nick-End Labeling	An in situ method for detecting areas of DNA which are nicked during APOPTOSIS. Terminal deoxynucleotidyl transferase is used to add labeled dUTP, in a template-independent manner, to the 3 prime OH ends of either single- or double-stranded DNA. The terminal deoxynucleotidyl transferase nick end labeling, or TUNEL, assay labels apoptosis on a single-cell level, making it more sensitive than agarose gel electrophoresis for analysis of DNA FRAGMENTATION.	Nick-End Labeling, In Situ,TUNEL,In Situ Nick End Labeling,In Situ Nick End Labelling,In Situ Nick End-Labeling,In Situ Nick End-Labelling,In Situ Nick-End Labelling,Nick End-Labeling, In Situ,Nick End-Labelling, In Situ,Nick-End Labelling, In Situ,Nick End Labeling, In Situ,Nick End Labelling, In Situ