[Recurrent syncope as the initial symptom caused by nasopharyngeal carcinoma-a case report].

Syncope is a relatively common symptom in clinical practice, and its underlying etiology is complex. This article reports a case of nasopharyngeal carcinoma that presented with recurrent syncope as the initial symptom. After radiotherapy, the patient did not experience any further episodes of syncope.

[Sleep disturbance and cognitive dysfunction in patients with persistent postural and perceptual dizziness].

Objective: To study sleep quality and cognitive status and their correlation in patients with persistent postural and perceptual dizziness (PPPD).

Methods: We assessed sleep quality and cognitive function among 70 patients with PPPD and 70 age-matched heathy volunteers using Mini-Mental State Examination (MMSE), Montreal Cognitive Assessment (MoCA), Pittsburgh Sleep Quality Index and polysomnography (PSG).

Results: The patients had a mean MMSE score of 25.

[Huangjiao granules ameliorate brain injury in rats with cerebral ischemia/reperfusion injury by stimulating PI3K/AKT/mTOR signaling pathway].

Objective To investigate the protective effect of Huangjiao granules on rats with cerebral ischemia/reperfusion injury and the effect on phosphoinositide-3 kinase/protein kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR) signaling pathway. Methods The rat models of cerebral ischemia/reperfusion injury were established by suture method and treated with Huangjiao granules. ZeaLonga scoring was used to evaluate the neurological function of rats.