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1.
Equine Vet J ; 23(3): 166-8, 1991 May.
Article in English | MEDLINE | ID: mdl-1884696

ABSTRACT

The relative incidence of dorsal metacarpal disease was examined in two groups of Thoroughbred racehorses training on dissimilar surfaces (dirt and wood fibre). The horses and training methods appeared to be similar. The incidence of disease was significantly greater in the group training on dirt. There was no significant difference in the age distribution of incidence between the two groups and there was no association of incidence with sex or age within the training group. The number of fast miles worked by the two groups prior to the onset of dorsal metacarpal disease was lower in the group training on dirt.


Subject(s)
Bone Diseases/veterinary , Horse Diseases/etiology , Metacarpus/injuries , Physical Conditioning, Animal , Animals , Bone Diseases/etiology , Female , Horses , Incidence , Male , Probability
2.
J Androl ; 11(5): 401-8, 1990.
Article in English | MEDLINE | ID: mdl-2254174

ABSTRACT

Unilateral spermatic cord torsion results in contralateral degeneration and reduced fertility in the prepubertal male rat. This study was conducted to investigate the use of immunosuppression with cyclosporine and prednisone to prevent these untoward effects. Thirty-five-day-old male rats were subjected to 720 degrees unilateral spermatic cord torsion of 9 hours duration. At the time of detorsion, animals were given a subcutaneous injection of i) cyclosporine, ii) prednisone, or iii) cyclosporine combined with prednisone. Control groups included: i) animals undergoing orchiectomy of the ipsilateral testis following the torsion period, ii) hemicastration in the absence of torsion and iii) sham surgery. Orchiectomy at the end of the torsion period prevented the torsion induced reduction of fertility, contralateral seminiferous tubule diameter and testis weight. Treatment with cyclosporine combined with prednisone significantly increased these parameters above detorsion alone. These data indicate that short term immunosuppression with cyclosporine alone or in combination with prednisone limits the adverse effects of unilateral spermatic cord torsion as does removal of the damaged organ at the end of the torsion period.


Subject(s)
Autoimmune Diseases/prevention & control , Cyclosporins/therapeutic use , Infertility, Male/prevention & control , Prednisone/therapeutic use , Spermatic Cord Torsion/drug therapy , Testis/pathology , Animals , Atrophy , Autoimmune Diseases/drug therapy , Cyclosporins/pharmacology , Drug Synergism , Female , Infertility, Male/etiology , Litter Size , Male , Orchiectomy , Organ Size , Prednisone/pharmacology , Rats , Spermatic Cord Torsion/complications , Spermatic Cord Torsion/immunology , Spermatic Cord Torsion/surgery , Testis/drug effects
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