Potrivit oamenilor de știință de la Universitatea Washington din St. Louis, una dintre principalele cauze ale procesul de moarte celulară este consumul de grăsimi.
Excesul de calorii ce nu sunt transformate în energie sunt depozitate de organism pentru mai târziu, sub forma ţesutului gras, în celulele adipoase. Astfel grăsimea în exces rămâne să circule în sânge, generând depuneri pe pereţii arterelor.
Atunci când alte celule din organism preiau o parte din această grăsime ce circulă prin sânge, mecanismul lor vital intern este afectat şi mor. La scară largă, această moarte celulară poate duce la insuficienţă cardiacă sau renală. Cercetătorii au anunţat identificarea unei singure gene care pare a fi răspunzătoare de această moarte celulară autoindusă din cauza toxicităţii crescute.
Acest studiu, publicat de Science.com, deschide calea spre noi metode de prevenire a morţii celulare în cazul unor afecţiuni precum diabetul sau obezitatea.
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