Effect of testosterone on fracture healing in hypophysectomized rats. 1979

E Tarsoly, and J Jánossy, and L Kosztura

The effect of hypophysectomy and hypophysectomy + testosterone treatment on fracture healing was investigated on 60 Wistar rats (30 day old). The aim of the experiment was to elucidate whether in callus formation testosterone acts directly on the cells (peripheral effect), or its effect is mediated through the hypophysis (central effect). Changes induced by hypophysectomy take place in the course of callus formation due primarily to the impairment of the enzyme system of the cells. The effect of hypophysectomy can be attenuated with testosterone which, despite hypophysectomy, stimulates fracture healing. It may be concluded that testosterone exerts a direct peripheral effect on the callus cells, presumably on their enzyme system.

UI MeSH Term Description Entries
D007016 Hypophysectomy Surgical removal or destruction of the hypophysis, or pituitary gland. (Dorland, 28th ed) Hypophysectomies
D008297 Male Males
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
D013739 Testosterone A potent androgenic steroid and major product secreted by the LEYDIG CELLS of the TESTIS. Its production is stimulated by LUTEINIZING HORMONE from the PITUITARY GLAND. In turn, testosterone exerts feedback control of the pituitary LH and FSH secretion. Depending on the tissues, testosterone can be further converted to DIHYDROTESTOSTERONE or ESTRADIOL. 17-beta-Hydroxy-4-Androsten-3-one,17-beta-Hydroxy-8 alpha-4-Androsten-3-one,8-Isotestosterone,AndroGel,Androderm,Andropatch,Androtop,Histerone,Sterotate,Sustanon,Testim,Testoderm,Testolin,Testopel,Testosterone Sulfate,17 beta Hydroxy 4 Androsten 3 one,17 beta Hydroxy 8 alpha 4 Androsten 3 one,8 Isotestosterone
D014945 Wound Healing Restoration of integrity to traumatized tissue. Healing, Wound,Healings, Wound,Wound Healings
D050723 Fractures, Bone Breaks in bones. Bone Fractures,Broken Bones,Spiral Fractures,Torsion Fractures,Bone Fracture,Bone, Broken,Bones, Broken,Broken Bone,Fracture, Bone,Fracture, Spiral,Fracture, Torsion,Fractures, Spiral,Fractures, Torsion,Spiral Fracture,Torsion Fracture
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

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