Por que a cintura aumenta após os 45 anos? Novo estudo responde

[{"selector":"#anim-33f6f90a-0fdd-40d0-b2c3-20847a1e1cb9","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-81cb0050-89c7-4214-a7b2-536ba9ebce44","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-b2c20fb5-6b86-4add-9de7-8e383ae6b1c9","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-68721b77-fff3-4225-b132-93122685e8d0","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Unsplash

[{"selector":"#anim-a36bbc83-556b-4580-bc9f-ca2d4dffa011","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f4daa0ab-6b7f-4a12-a43f-24be12316950","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-af7f762b-2694-4191-aa9f-560ad016b1a2","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-19115452-2519-4db5-ba4a-7fdd70d5fa07","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Um estudo revelou que o envelhecimento estimula a produção de novas células de gordura, especialmente na região abdominal, explicando o aumento da circunferência da cintura na meia-idade Unsplash

[{"selector":"#anim-ed2eaaf6-ac71-4888-aa80-fa82bf6263e7","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-15ba580d-6cc3-45f0-b168-656505b0bc05","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-2c992ee1-c0cb-4e55-99f0-dc9d10426de2","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-3c3f2efa-5621-484e-b974-6f643f5274dd","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Pesquisadores da City of Hope identificaram que células-tronco chamadas APCs, presentes no tecido adiposo branco, se tornam mais ativas com o tempo, produzindo mais gordura mesmo em ambientes jovens Unsplash

[{"selector":"#anim-09edd644-7718-41ee-8dbb-7e5fb3c1d980","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-997e4579-ccc6-4def-81fb-42aa296731f6","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-847c69fa-a24c-4eee-ac3e-4767eeb06b6e","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-87ec4a80-a243-4ca1-af52-7d5d6a250149","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Além disso, o envelhecimento transforma essas APCs em um novo tipo celular, os pré-adipócitos comprometidos com a idade (CP-As), altamente eficazes na criação de gordura Unsplash

[{"selector":"#anim-d0e29e88-20fe-452d-b151-37269e085663","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-4a32070f-3668-4fb9-8843-f3e6a51ff6db","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-ec8ca158-16ec-456f-8051-06eb631caa68","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-9a04a2a5-7a84-4dca-9591-5b55ca36438e","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Uma via de sinalização chamada LIFR foi identificada como essencial para ativar essas células em organismos mais velhos Unsplash

[{"selector":"#anim-fdfe5a67-4883-4684-ac98-26a95d5b7b15","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f3290dac-4118-4e83-acec-238405b8188b","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-5658ea56-3582-4d4c-ba01-09193c325d6d","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-df9a4dd8-c095-479a-a441-46fee34b74c6","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Testes com tecidos humanos confirmaram que o mesmo processo ocorre em pessoas, com CP-As mais abundantes e ativos em indivíduos de meia-idade Unsplash

[{"selector":"#anim-ff74bcdf-2ef5-4048-896f-3c544c3d9b09","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-c6a71b67-a9e5-4aa1-a946-5fa5d0b4973f","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-2d55a40e-0844-48d9-8c90-496d45c3bf6e","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-867461ed-e2c8-4c77-8062-cf52c1d7006d","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Os cientistas acreditam que controlar a formação dessas células pode ser chave para combater a obesidade relacionada à idade e melhorar a saúde e a longevidade Unsplash

CNNBRASIL.COM.BR

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