2017. szeptember 3., vasárnap

És - mielőtt elfelejteném - az élet-elemek 6. helyén: a kén !

Ráadásul, érdemes eltöprengeni az öregedésben betöltött szerepén:

Collagen fibrils consist of recurring three-stranded polypeptide units called tropocollagen, arranged head to tail in parallel bundles (Fig. 7-15). The rigid, brittle character of the connective tissue in older people is the result of an accumulation of covalent cross-links in collagen as we age.

Lehninger-Nelson-Cox: Principles of Biochemistry, 174.o.

Szószedet: homeostasis (önbévület*)

homeostasis : The maintenance of a dynamic steady state by regulatory mechanisms that compensate for changes in external circumstances. ___...