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In this present paper, simultaneous determination of Ca(2+) and Mg(2+) cations in saliva, urine was achieved using an ion chromatography method, in which a piezoelectric quartz crystal (PQC) sensor was used as a detector, and a solution containing tartaric acid (4 mmol 1(-1)) and ethylenediamine (2 mmol 1(-1)) as a mobile phase. Good linearities were(More)
Growing evidence has suggested that hydrogen sulfide (H₂S) acts as a novel neuro-modulator and neuroprotective agent; however, it remains to be investigated whether H2S has a direct effect on neural stem cells (NSCs). We report here that NSCs expressed cystathionine β synthase (CBS) and addition of exogenous H2S donor, L-cysteine, stimulated proliferation(More)
Bone destruction is one of the clinical features of chronic otitis media with cholesteatoma. Bone resorption may be due to the epithelial debris accumulated in the cholesteatoma epidermal sac that acts as foreign body material inducing a destructive granulation tissue and creates pressure on the bony middle ear. This compressive force then induces bone(More)
Objective: To study the character of sinus pericranii in the adults and enhance the levels of the diagnosis and treatment of sinus pericranii. Methods: The clinical data of 13 adult patients with sinuses pericranii undergoing surgery in Beijing Hospital from 1992 to 2016 were analyzed retrospectively, including clinical manifestations, imaging data,(More)
OBJECTIVE To discuss transoral microcervical treatment of 16 patients with craniocervical malformation. METHODS Perioperative treatment including antibiotics, tracheotomy, intravenous nutrition was used in 16 patients. RESULTS Eight patients had basilar impressions, 3 chronic atlantoaxial dislocation and 2 odontoid fracture, 2 lower clivus chordoma, and(More)
Objective: To investigate the characteristics of superior petrosal vein (SPV) and its influence on the surgical field in microvascular decompression (MVD) for trigeminal neuralgia (TN), and to analyze the effect of the surgical treatment of SPV on the surgical approach, indication and prognosis. Methods: The clinical data of 280 patients with trigeminal(More)
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