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Biomedical subjects

D B King

Publications and source records attributed to D B King.

32 records · Page 2Linked to original sources

Bromocriptine in the management of end of dose deterioration in Parkinson's disease.

Thirty-three patients with advanced Parkinson's disease complicated by end of dose deterioration were treated with bromocriptine. The drug was slowly increased so that by treatment week 24 the mean daily dose of bromocriptine was 22mg and levodopa had been decreased by an average of 15 percent. The majority of improvement in daily fluctuations and Parkinsonian disability score was documented by 8 weeks, at which time the mean daily bromocriptine dose was only 12mg. End of dose deterioration was reduced in 78 percent of the patients (mean 43% improvement). Total Parkinsonian disability score was decreased by 33 percent. Adverse effects were minimal; the most common was mild transient early treatment nausea which occurred in 15 percent of the patients. The slow introduction of small doses of bromocriptine, combined with minimal levodopa reduction, can give Parkinsonian patients significant improvement in end of dose deterioration.

Adult↗

Hormones and growth in poultry.

The hormonal control of growth in poultry and other species is complex. The available evidence supports the concept that growth hormone and the thyroid hormones are the principal hormones responsible for the attainment of normal growth in the domestic fowl. Other hormones, including somatomedins, epidermal growth hormone, sex steroids, and vitamin D metabolites, are also involved in the control of growth. Considerable study will be required for the elucidation of the exact roles of the various hormones in avian growth.

Adrenal Cortex Hormones↗

Effect of hypophysectomy and growth hormone on immune development in the domestic fowl.

The effect of hypophysectomy and recombinant growth hormone (rcGH) treatment on the growth and development of the immune system was investigated in young chickens. Flow cytometric analysis of cell surface markers revealed no changes in the proportion of thymocytes expressing CT-1a, CD4, and/or CD8 among any of the treatment groups. In contrast, the proportion of both single positive CD4 and CD8 peripheral blood lymphocytes (PBL) was altered in hypox birds treated with rcGH compared to the vehicle-treated group. Specifically, rcGH treatment produced a decrease in the proportion of CD8+ cells and an increase in the percentage of CD4+ PBL. There was little change in the labeling intensity of PBL or thymocytes associated with any treatment; however, double positive (CD4+CD8+) thymocytes from hypophysectomized chicks that were not given rcGH had increased fluorescence relative to rcGH supplemented hypox chicks. As expected, hypophysectomy reduced body, skeletal, and thymic growth. Treatment of hypox chicks with rcGH enhanced body weight while thymic weights were somewhat increased. Skeletal growth was not significantly altered by rcGH. Bursal growth appeared refractory to either treatment. These studies support the conclusion that growth hormone influences thymic growth and the maturation of thymus-derived lymphocytes. These results also demonstrate a biological activity for chicken growth hormone derived through recombinant technology.

Animals↗

The dying patient: a comparative study of nurse caregiver characteristics.

The nurse's interaction with the dying patient is thought to be influenced by death anxiety, attitudes toward death, and perceptions of control. Differences relative to these three variables between nurses who work on a continuous basis with the dying and those who rarely encounter a dying patient were examined. Using 3 paper and pencil questionnaires, data were collected from 105 nurses (32 palliative care nurses, 44 psychiatric nurses, 29 orthopedic nurses). Significant differences were found between the palliative care nurses and nonpalliative care nurses on attitudes toward death and on 3 of the 4 subscales that assessed death anxiety. Suggestions for future research include a systematic examination of the relationship of attitudes and feelings about death to patient care.

Attitude of Health Personnel↗