Biomedical subjects

G Tiffin

Publications and source records attributed to G Tiffin.

2 recordsLinked to original sources

PubMed2000

Danazol for unexplained infertilty.

BACKGROUND: The androgen, Danazol, was developed in the 1970's as a treatment for endometriosis. Its use was soon advocated in women with unexplained infertility. Two randomized trials were subsequently conducted to assess the effectiveness of danazol in this population. OBJECTIVES: The objective of this review was to assess the effects of danazol on pregnancy rates in women with unexplained subfertility. SEARCH STRATEGY: The Cochrane Subfertility Review Group specialised register of controlled trials was searched. SELECTION CRITERIA: Randomised trials of danazol compared with placebo or no treatment in women with unexplained subfertility. DATA COLLECTION AND ANALYSIS: Data were extracted by two reviewers. MAIN RESULTS: Two trials involving 68 women were involved. There was no difference found in pregnancy rate between danazol and placebo (odds ratio 2.57, 95% confidence 0.53 to 12.46). REVIEWER'S CONCLUSIONS: There is not enough evidence to evaluate the effect of danazol on pregnancy rates in women with unexplained subfertility. The need to use contraception during danazol treatment, adverse effects and costs are additional considerations.

Danazol↗

PubMed1998

Prevalence of Toxoplasma gondii in Canadian market-age pigs.

During 1991 and 1992, 2,800 market-age pigs were sampled at federally inspected abattoirs from across Canada. Anti-Toxoplasma gondii IgG at titers of > or =1:32 were found in 240 pigs examined by a commercial, latex agglutination test. Seroprevalences ranged from 3.5 to 13.2% in the different regions of the country. Tissue hybridization studies using a previously developed probe demonstrated T. gondii ribosomal RNA in 9 of 36 animals, whereas mouse bioassay testing of heart muscle and diaphragm from all 2,800 pigs failed to demonstrate the presence of infective stages of T. gondii in tissues. Although serology results from this study indicated that Canadian market-age pigs are infected with T. gondii at rates similar to those reported from other parts of North America, mouse bioassay results suggested that Canadian pork products contain low levels of infective organisms. This apparent discrepancy suggests that serological evidence of T. gondii infection in pigs alone does not accurately assess the public health risks associated with consuming improperly cooked pork products.

Abattoirs↗