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Physiology Renal physiology e18f090e

Orexins are implicated in all except

A
Wakefulness
B
Sexual behaviour
C
Appetite
D
Alzheimer's disease
High-Yield Explanation
Orexinergic signaling overexpression alters the sleep-wake cycle and secondarily induces beta-amyloid accumulation and tau-mediated neurodegeneration. Therefore, considering that orexinergic system dysregulation impairs sleep-wake rhythms and may influence AD pathology, it is hypothesized that orexin receptor antagonists are likely potential preventive/therapeutic options in AD patients. Orexin cell-specific lesions do not impair sexual performance and motivation but disrupt conditioned responses associated with sexual reward.

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