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Biomedical subjects

J Benfer

Publications and source records attributed to J Benfer.

14 recordsLinked to original sources

[Effect of exogenous collagen on the metabolism of burns in rats; the collagen treatment of large superficial excision wounds].

In an animal experiment study the effect of collagen sponge treatment on skin wounds was examined. In a test for defense mechanism, the bandage material was accepted without any disturbance of the surrounding tissue. It could also be removed without any damage to the wound area while renewing the covering bandage. In contrast to the controls, there was a statistically significant difference in the decreasing wound area. No tract formation of the wound edges was observed in the experimental group, and histologically the wounds showed an earlier fiber formation with functional orientation toward the wound surface. The advantages of treatment using collagen instead of inert material include better compatibility, a positive cosmetic effect, and a stimulation of wound healing without the necessity of a two-stage transplantation.

Animals↗

[Mechanical aspects of bone stability by an in vivo testing method (author's transl)].

This is a report of a new method for in vivo determination of the Young modulus of human os radii. The failure of the apparatus is +/- 1.86 per cent. The accuracy of the measuring procedure on healthy subjects bases on a variation coefficient of nearly 10 per cent. 124 forearms of healthy persons had been studied in relation to age, sex and to the right and the left os radii. There was a statistically significant higher elastic property of the bones of adolescent versus elder men (over 60 years), but no significant differences between male and female. Right and left os radii had nearly the same amounts for the Young modulus.

Adolescent↗

[Xanthinol nicotinate and wound healing].

In an experimental study the local effect of i.v. applied xantinol-nicotinate (Complamin) on healing skin incisions in rats was studied. In conclusion, there was a higher ultimate tensile strength of wounds treated by the agent, based on the increased synthesis of collagen fibres. This statement was proved by the alteration of free hydroxyproline in serum. Histologically, there was an intensive vascularization of the wound healing area. Concerning the elastic behaviour we found a more rigid regenerative tissue in the early phases of healing on account of the enhanced thickness of the wound area.

Animals↗

Factor XIII and fracture healing. An experimental study.

The effect of exogenous factor XIII on fracture healing has been tested. It could be shown that after administration of the fibrin stabilizing factor, the concentration of fibrin fibres in the fracture haematoma increases. The resistance against breaking is thus enhanced in treated animals as compared to untreated controls, mainly during the early phases of fracture healing. X-ray diagnosis demonstrated an enhanced healing process of the treated fractures. The accelerated fracture healing by factor XIII adminstration could also be substantiated through histological examinations.

Animals↗

The effect of rifamycin SV on the wound-healing process.

The influence of rifamycin SV on the healing process of a wound was studied in animal experiments. Measurement of the degree of cicatrization, determination of the free hydroxyproline in serum, and histological findings helped to demonstrate that local application of rifamycin SV leads to an increased fibrinous conglutination of the lips of the wound at an early phase of the healing process and the subsequent formation of fibres in the regenerative tissue is not impaired.

Animals↗