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Biomedical subjects

H M Robinson

Publications and source records attributed to H M Robinson.

At least 37 records · Page 2Linked to original sources
PubMed1980

Angiosarcoma (angioendothelioma) of the scalp. An unusual case of scarring alopecia.

Angiosarcoma with initial involvement of the scalp is a rare, malignant neoplasm. We present the case of a 77-year-old woman in whom extensive scarring alopecia developed that was proved histologically to be due to angiosarcoma. She had a good initial response to treatment with electron-beam therapy, but after seven months, extensive nodules and indurated areas on the face beyond the borders of the radiation field developed. Subsequently, massive cervical adenopathy and metastases to the lungs, liver, and spleen developed. Angiosarcoma must be differentiated from other malignant blood vessel tumors and should be considered in the differential diagnosis of scarring alopecia of the scalp in elderly patients.

Aged↗
PubMed1980

Parapsoriasis.

Parapsoriasis is a term which encompasses a number of differing pathologic states clinically manifesting chronic recalcitrant erythematous scaling lesions. Although these various diseases have some similar clinical and histopathological features, they are obviously quite different from the standpoint of malignant potential and prognosis. The classification suggested herein has been developed in an attempt to resolve the existing confusion and to offer a simplified approach to the study of a complex problem.

Acute Disease↗
PubMed1979

The use of fluorescent labeled antigen to follow the fate of instilled immune complexes in the rabbit lung.

To follow the fate of exogenously introduced immune complexes in the rabbit lung, a direct labeling method was devised. Bovine serum albumin was incubated with fluorescein isothiocyanate, washed and then bound at equivalence with antibovine serum albumin. Immune complexes thus prepared are injected into a rabbit airway and the animal was sacrificed. Using chilled alcohol fixative and paraffin embedding 4 micrometer sections were prepared for light and fluorescent microscopy. This technique readily verifies that labeled antigen is taken up by alveolar macrophages. Electron microscopy using ferritin-antiferritin complexes corroborate these light findings.

Animals↗
PubMed1979

Isolation of a crystalline A14-(N-methylpyridinium) derivative of bovine insulin.

Reaction of insulin with 2-chloro- or 2-iodo-N-methylpyridinium iodide affords, amongst others, an insulin analogue modified at tha A14-tyrosine residue. Degradative procedures which pinpoint the exact position of modification are described. Highest yields of the derivative are obtained using the 2-iodo-N-methylpyridinium iodide as reagent. In the mouse convulsion assay this derivative retains 72% of its activity.

Amino Acids↗
PubMed1978

[New aspects of drug induced lupus erythematosus (author's transl)].

Approximately 8% of patients with systemic lupus erythematosus have drug induced disease. Many drugs are associated with lupus erythematosus-like syndrom (Chart 1). It is also a well known fact that the administration of other drugs may exacerbate corticoid treated systemic lupus erythematosus (Chart 2). This report illustrates that it is obvious that we must learn the relationship of diseases and the drugs which induce antinuclear antibodies.

Adrenal Cortex Hormones↗
PubMed1978

Fasting metabolism in infants. I. Effect of severe undernutrition on energy and protein utilization.

Fasting energy metabolism was studied in infants to determine the rates of utilization of endogenous carbohydrate, fat, and protein in relation to length of fasting, glucose homeostasis, other circulating energy substrates and hormones, and severe depletion of energy reserves due to prior malnutrition. Five subjects about 1 yr of age were each studied before and after restoration of their energy reserves. Following 3 days of a standard maintenance intake of energy and protein, the subjects were fasted until glycogen oxidation became negligible. Total energy utilization, determined by hourly oxygen consumption, did not diminish as a result of fasting but was significantly less when malnourished than when recovered, 66 versus 79 kcal/kg/day. In all cases the major energy source shifted from oxidation of dietary carbohydrate and glycogen to oxidation of fat, determined from the respiratory quotient, until the oxidation of glycogen became negligible and fat provided 94% of energy in the malnourished subjects after 21 hr and 92% in the recovered subjects after 27 hr. Utilization of protein, determined from urinary nitrogen excretion, remained very low in the malnourished infants accounting for a maximum of 4% of energy, 103 mg N/kg/day, whereas after recovery, protein utilization doubled as a result of fasting, finally accounting for 7% of energy, 226 mg N/kg/day (p less than 0.005). Urea accounted for 60% of total urinary N in both groups and plasma urea increased correspondingly in the recovered but not in the malnourished subjects. Plasma glucose decreased to about 40 mg/100 ml in both groups as glycogen oxidation diminished. The maximum amount of glucose that could have been derived from dietary carbohydrate, glycogen, glycerol, and amino acids decreased over this time from about 6 to 1 mg/kg/min. Alanine declined in relation to glucose concentration and was not different in the two groups in spite of the difference in urea production. Glycerol free fatty acids, beta-hydroxybutyrate, and acetoacetate increased in both groups, but the latter three of these remained significantly less in the malnourished group. Insulin decreased rapidly and remained equally low in both groups. Urinary epinephrine increased in both groups and cortisol was elevated after fasting, while growth hormone did not increase significantly. It is concluded that fasting infants complete the transition from dietary carbohydrate to endogenous fat as the major energy source much faster than do adults, proportionate to relatively greater energy utilization. Severe wasting did not prevent energy homeostasis in spite of greatly depleted body fat. Oxidation of fat continued to provide virtually all of the fasting energy requirements, although ketosis was relatively less. Utilization of endogenous protein also increased as a result of fasting but, by contrast, provided only a very small fraction of total energy, and this was substantially diminished as a result of wasting, similar to what has been found in starved adults...

Blood Glucose↗
PubMed1976

Symmetrical reversed plantar calcaneal spurs in children. A normal variant?

Three cases of unrelated children who have symmetrical posteriorly directed plantar calcaneal spurs are presented. Only one reference to this appearance could be found in the English literature. These spurs are asymptomatic and probably represent variations in the normal development of the calcaneus.

Age Factors↗
PubMed1976

Thiabendazole-induced toxic epidermal necrolysis.

Toxic epidermal necrolysis (TEN) is a syndrome that may develop from a number of different stimuli, including drug administration, staphylococcal infection, vaccine administration, and blood dyscrasias. A 29-year-old woman developed TEN from the systemic administration of thiabendazole. Although various cutandous adverse reactions have been attributed to the administration of this medication, this is the first case to indicate that orally administered thiabendazole may also produce TEN. Although acutely ill at the time of hospitalization, the patient showed a prompt response to treatment with prednisone.

Adult↗
PubMed1976

Cutaneous protothecosis in a patient receiving immunosuppressive therapy.

A 30-year-old recipient of a renal transplant, who was receiving immunosuppressive therapy, developed cutaneous abscesses from which an organism of the genus Prototheca was cultured. The patient died of Klebsiella septicemia. At the time of death, pure cultures of Prototheca and Candida organisms were grown from separate skin lesions. Prototheca is a genus of achloric algae. Cultural, microscopical, and staining characteristics separate these organisms from the yeast and fungi. Cutaneous protothecosis was first described in 1964 by Davies et al in an otherwise healthy African rice farmer. Since that time, nine other cases have been reported. However, only a single case has been described in a patient receiving immunosuppressive drugs, a woman with carcinoma of the breast who was receiving chemotherapy with multiple agents.

Abscess↗