Which metabolic consequence results when prolonged severe cold causes shivering thermogenesis in mammals lacking brown adipose tissue?

💡 Explanation

When shivering thermogenesis is prolonged in absence of brown fat, non-shivering thermogenesis is limited, thus needing skeletal muscles to maintain core temperatura, increasing muscle protein catabolism because limited available energy accelerating protein breakdown. Therefore muscle protein breaksdown increase, opposed to vasodilation (heat loss), increased glycogen or ketone synthesis each needing dedicated and independent conditions.

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