[Ageing-changes in collagen -- biosynthesis of collagen (part II) (author's transl)]

In the present three parts of the survey on ageing-changes in collagen physical and chemical qualities are discussed at first. Further a summary on questions of the biosynthesis of collagen, changes of the collagen metabolism in the ageing organism organism and changes of the ripening collagen in the living organism is given. Following in vitro-ageing-changes of collagen and causes of the changes of the ageing organism are described. A summarizing appreciation of the ageing-changes in the collagen finishes the survey.