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Biomedical subjects

R Tholen

Publications and source records attributed to R Tholen.

3 recordsLinked to original sources

[Greenish discolorations of beef musculature and their assessment according the meat hygiene regulations. A case report].

In muscular tissue samples from two cows of different origin numerous greenish, spotlike tissue discolourations were diagnosed as eosinophilic myositis. Sarcosporidiosis is being suspected as the most likely cause. Factors leading to such cases of myositis due to sarcosporidiosis which is wide-spread in cattle and normally inapparent are largely unknown. According to Swiss and German meat inspection directives beef carcasses with these discolourations have to be declared as unfit for human consumption. However, during meat inspection such cases of myositis are problematic to diagnose, because the lesions are only visible on the cut end of muscle tissue. Hence, they can pass unnoticed through carcass inspection.

Animal Husbandry↗

[Case report: tyrosine deposits].

Whitish precipitations in three samples of raw cured ham, which appeared in the stereomicroscope as piles of crystals, were confirmed as tyrosine crystals. Tyrosine is readily soluble in nitric acid (yellowish discoloration) and, after addition of potash lye, it precipitates as yellow-orange picrate. Factors that influence the formation of tyrosine crystals are largely unknown. In raw cured ham of Parma experience has shown that tyrosine crystals are found in ham stored for a very long time.

Animals↗

A successful long-term method of fat grafting: recontouring of a large subcutaneous postradiation thigh defect with autologous fat transplantation.

A method of harvesting fat with intact cells using a veterinary needle and a fine needle aspiration device is described. Viable fat cells are obtained in large amounts. A large subcutaneous postradiation thigh defect was reconstructed with harvested fat placed subcutaneously in various sessions. A good, but not perfect, reconstruction was obtained. This case indicates that viable fat cells can be transplanted and can survive even in the adverse environment of a postradiation defect.

Adipose Tissue↗