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Your search keyword '"Pennington, G. W."' showing total 44 results
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44 results on '"Pennington, G. W."'

2. Consultant Contract

Author

George, W. H., Goldberg, D., Owen, G., Naftalin, L., Pennington, G. W., Sewell, P., and Worthy, E.

Published
1975

3. Zuckerman Overtaken

Author

Pennington, G. W., Hunt, A. C., Fawcett, J. K., Farr, A. D., and Griffiths, P. D.

Published
1979

4. Management Of Pathology Laboratories

Author

Whitby, L. G., Hunt, A. C., Pennington, G. W., Bold, A. M., Brown, S. S., Andrews, G. S., Brown, A. E., and Dyson, Roger

Published
1979

6. Staffing Of Hospital Laboratories

Author

Crane, W. A. J., Dawson, I. M. P., Finbow, J. A. H., Ghosh, M. L., Jones, J. S. P., Macfarlane, A., Pennington, G. W., Powell, G. D., Pugh, V. W., Richards, H. G. H., Sinclair, R. D. C., Wagstaff, W., and Walker, F.

Published
1977

16. Hospital Career Structure

Author

Langston, H. H., Bradley, Katharine F., Campbell-Smith, S., Chamberlain, J. H., Hambleton, G., and Pennington, G. W.

Published
1968

27. Abnormal steroid excretion in gestational trophoblastic disease complicated by ovarian theca-lutein cysts.

Author

Bevan, B R, Savvas, M, Jenkins, J M, Baker, K, Pennington, G W, and Taylor, N F

Abstract

Serum and urine steroids were examined in two subjects with trophoblastic disease accompanied by large ovarian theca-lutein cysts and compared with those from 10 patients with trophoblastic disease but without palpable cysts. In the patients without cysts normal values were obtained for serum oestradiol, progesterone, 17 alpha-hydroxyprogesterone and androstenedione, and for urinary total oestrogens, pregnanediol, pregnanetriol, and 17-oxosteroids. Nineteen urinary steroid metabolites, quantified by capillary gas-liquid chromatography, were either within reference limits or marginally raised. In several cases relatively minor increases in serum testosterone and cortisol and urinary free cortisol were observed. In contrast, the subjects with cysts showed pronounced excesses of androgen metabolites, 17 alpha-hydroxypregnenolone, pregnanediol, and pregnanetriol, and both exhibited a similar pattern of unusual additional metabolites. The profiles superficially resembled those seen in 21-hydroxylase deficiency adrenogenital syndrome, but there were important discrepancies reflecting known differences in ovarian and adrenal steroid metabolism. Chemotherapy led to decline of human chorionic gonadotrophin concentrations, regression of the cysts, and return to normal of the steroid profile. Excess steroids in the patients with cysts may have originated in the ovary rather than in the trophoblastic tissue. [ABSTRACT FROM PUBLISHER]

Published
1986

32. Steroid excretion and metabolism by gonadal tissue from a subject with testicular feminization syndrome.

Author

Lockwood, E., Ghosh, P. C., Pennington, G. W., and Tipton, R.

Abstract

The initial clinical, pathological, and hormonal investigation of a patient with testicular feminization syndrome is described. Incubation of gonadal tissue with various radioactive substrates, together with the isolation and identification of the resulting metabolites, was demonstrated a high capacity to synthesize testosterone. Two biosynthetic pathways were demonstrated, originating from progesterone and pregnenolone. These are essentially similar to those of the normal adult testes. Low levels of activity were found in the phenolic fractions and no measurable production of oestrone, oestradiol, or oestriol was found. [ABSTRACT FROM PUBLISHER]

Published
1974

40. Pre-freeze/post-freeze semen motility ratio.

Author

PARASKEVAIDES, E. C., PENNINGTON, G . W., NAIK, S., and GIBBS, A. A.

Subjects
*HUMAN artificial insemination, *COMPARATIVE studies, *CRYOPRESERVATION of organs, tissues, etc., *RESEARCH methodology, *MEDICAL cooperation, *RESEARCH, *SEMEN, *SPERM motility, *EVALUATION research
Published
1991
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