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Biomedical subjects

K Hoffmann

Publications and source records attributed to K Hoffmann.

At least 325 records · Page 18Linked to original sources
PubMed1978

[Surgical treatment of inflammatory diseases of the colon : ulcerative colitis, Crohn's disease, diverticulitis].

Operations and follow-up examinations were conducted on 106 patients with ulcerative colitis, 33 with colitis Crohn, and 163 with diverticulitis, at the University Clinics of Cologne and Munich. Overall mortality rates were 24.5% (n = 26), 6.1% (n = 2) and 16% (n = 26), respectively. In the surgical treatment of ulcerative colitis the possibility of malignant degeneration and, in the case of Crohn's disease, prevention of recurrences must be taken into consideration. Whether Crohn's disease is a precancerous conditions remains to be clarified. Choosing the optimal time for operative intervention is as important in diverticulitis as in ulcerative colitis. Because of the possibility of complications and the high risk of operation, early intervention is recommended for diverticulitis.

Adult↗
PubMed1978

Effects of short photoperiods on puberty, growth and moult in the Djungarian hamster (Phodopus sungorus).

Male Djungarian hamsters were raised from birth in either long (16L:8D) or short (8L:16D) photoperiods. In 16L:8D, testes were large (about 400 mg) and showed full spermatogenesis from 31 days of age, the cauda epididymidis contained motile spermatozoa from 35 days and the accessory glands were large and reached their final size at about 60 days of age. In 8L:16D, testes remained small (about 15 mg) and undeveloped up to an age of about 130 days; they then developed to reach normal size and full spermatogenesis. In 16L:8D body weight increased steadily up to an age of about 160 days, but in 8L:16D body weight increase was slower and reached normal values, after a plateua at about 80 days, at about 190--260 days. Most animals in 8L:16D moulted into winter pelage, and then into the summer pelage; those in 16L:8D kept the summer pelage throughout.

Animals↗
PubMed1978

[Experience with a new culture medium for salmonella diagnosis (author's transl)].

A new medium for the cultivation of Salmonella is presented which enables an immediate distinction of Proteus bacteria and Citrobacter. The time needed for diagnosis is reduced, expenditure on staff and material will be reduced. The "positive" salmonella yield from faeces specimens is increased as compared to Leifson agar and SS agar.

Bacteriological Techniques↗