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Biomedical subjects

M Perry

Publications and source records attributed to M Perry.

69 records · Page 4Linked to original sources

The chick embryo in studies of virulence and immunity with Neisseria Gonorrhoeae.

Intravenous inoculation of 11-day old chick embryos with Neisseria gonorrhoeae has confirmed the original observation of Bumgarner and Finkelstein that T1 and T2 gonocci are significantly more virulent than T3 and T4. Pili do not seem to be solely responsible for this virulence, since elimination of pili did not effect either the viability or the virulence of N. gonorrhoeae. In neutralization studies, there was only one log difference between the ability of normal and hyperimmune rabbit serum to protect the embryo against gonoccocal infection. However, when mouse sera were used in the same chick embryo system a clear difference was noted between the protective activity of normal serum and that antisera elicited in mice by purified gonococcal antigens. It is suggested therefore that mouse antisera be used in this chick embryo model for the assay for gonococcal antigens.

Animals

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Education, Nursing

The relationship between insulin sensitivity and skeletal muscle enzyme activities in hepatic cirrhosis.

We have examined the hypothesis that insulin insensitivity in hepatic cirrhosis is related to abnormalities of glycogen deposition and skeletal muscle enzyme activities. Otherwise well patients with biopsy-proven hepatic cirrhosis secondary to previous excess alcohol intake were studied. Prior to study, in basal state, patients had identical blood glucose concentrations but raised serum insulin concentrations (cirrhotic: 8.5 +/- 0.8 mU per liter; matched control subjects: 5.7 +/- 0.5 mU per liter, p less than 0.01). Muscle glycogen content, glycogen synthase activity and pyruvate dehydrogenase activity were normal in the basal state. The cirrhotic patients required less glucose to maintain the clamp in response to 0.1 unit per kg per hr insulin (6.7 +/- 0.5 vs. control 8.3 +/- 0.4 mg per kg per min, p less than 0.05) and deposited less glycogen in muscle during the clamp (8.6 +/- 0.5 vs. 12.0 +/- 1.4 mg per gm protein, p less than 0.05). Glycogen deposition correlated with clamp glucose requirement in the cirrhotic patients (r = 0.78, p less than 0.05). The expressed activity of glycogen synthase activity was significantly lower in cirrhotic patients at the end of the clamp (26.5 +/- 1.1% vs. 30.9 +/- 1.6%) and again correlated with clamp glucose requirement (r = 0.82, p less than 0.05). Skeletal muscle pyruvate dehydrogenase activity was not different in patients and control subjects. Insulin insensitivity in hepatic cirrhosis appears to be related to abnormalities of glucose deposition as glycogen in skeletal muscle.

Adult

Learning disabilities: community nutrition.

Nutrition for people with learning disabilities living in the community is an aspect of care that should not be taken for granted. From clients who live virtually independently to those living in fully staffed homes, there is much to be gained from a thorough assessment of their eating patterns. This article reviews the most common nutritional problems such clients face and discusses ways of overcoming them.

Education of Persons with Intellectual Disabilitie