ABSTRACT
Objective@#To explore the use of personal audio devices and hearing impairment among high school students, so as to provide reference for the development of adolescent hearing health work.@*Methods@#The simple random sampling method was used to collect research data relating to 1 768 high school students. The situation of personal audio players, headphone and hearing damage were investigated by using a self designed questionnaire, so as to identify the related factors of hearing impairment which were analyzed statistically by multivariate Logistic regression.@*Results@#The use rate of PAP and earphones was 98.64% and 94.12 %, respectively, and the use rate of female students(99.68%, 96.42%) was higher than that of male students(97.43%, 91.43 %)( χ 2=16.69, 19.79, P <0.01). Hearing impairment accounted for 13.35%. The Logistic regression analysis showed that PAP service years ( OR =1.59, P <0.05) were related to hearing impairment. Gender ( OR =0.60), in ear earphones ( OR =1.38), earplug earphones ( OR =1.37), and quiet use >1 h ( OR =1.50) were independently influenced with symptoms of hearing impairment during/after earphone use( P <0.05).@*Conclusion@#High usage rates of personal audio equipment among high school students lead to hearing impairment and related symptoms. Non essential use should be reduced.
ABSTRACT
Meta-analysis of randomized controlled trials( RCTs) was conducted to clarify the effect of Bushen Huoxue herbal medicine in subfertile women with polycystic ovary syndrome. Databases including CNKI,Wan Fang,VIP,Sino Med,PubMed,EMbase,the Cochrane Library were searched until September,2018. Two reviewers independently assessed study eligibility,extracted data,and evaluated the risk of bias for included trials. Meta-analysis used Review Manager 5. 3 software. Seven RCTs( n = 634) were included.RESULTS: of Meta-analysis indicated that,Bushen Huoxue herbal medicine had advantages on increasing pregnancy rate,lowering LH,T and INS. Bushen Huoxue herbal medicine were not clear on increasing ovulation rate,increasing FSH. No serious adverse reaction appearing from Bushen Huoxue herbal medicine was reported in the including researches. The current Meta-analysis showed a promising effect of Bushen Huoxue herbal medicine in subfertile women with polycystic ovary syndrome,but the quality of current evidence was low and possible publication bias.
Subject(s)
Female , Humans , Pregnancy , Drugs, Chinese Herbal , Herbal Medicine , Infertility, Female , Polycystic Ovary SyndromeABSTRACT
The clinical efficacy of Bushen Huoxue traditional Chinese medicine( TCM) in the treatment of hyperprolactinemia were systematically evaluated,which provided evidence-based medical evidence for the treatment of hyperprolactinemia with Bushen Huoxue traditional Chinese medicine. The randomized controlled trials on the treatment of hyperprolactinemia with Bushen Huoxue traditional Chinese medicine were comprehensively searched by computer in PubMed,EMbase,Cochrane Library,CNKI,Wan Fang,VIP,CBM and Meta-analysis was performed. The search time is from the time of self-built database to September 28,2018. A total of 816 patients with hyperprolactinemia met the inclusion criteria in 13 clinical studies. The results of Meta-analysis showed that compared with Western medicines,traditional Chinese medicine for tonifying kidney and activating blood circulation had a comparable effect in reducing prolactin and treating infertility,and had obvious advantages in improving of TCM syndromes,disease recurrence and reducing of side effects.
Subject(s)
Female , Humans , Drugs, Chinese Herbal , Therapeutic Uses , Herbal Medicine , Hyperprolactinemia , Drug Therapy , PhytotherapyABSTRACT
Potential xanthine oxidase (XOD) inhibitors in Lagotis brevituba were captured by using affinity and ultrafiltration. The structures of the captured components were identified by ultra-performance liquid chromatography coupled with Q-TOF mass spectrometry (UPLC-Q-TOF-MS). The binding intensity and binding mechanism between the captured components and XOD were analyzed by using molecular docking software Autodock 4.2. A total of 17 compounds were identified, including 9 flavonoids, 5 phenolic acids and 3 triterpenes. Molecular docking results showed that all the captured components could be spontaneously bound with XOD mainly via hydrogen bond, Van der Waals' force and hydrophobic interaction. From the perspective of binding energy and scoring function, the collected fractions all had potential prospects for XOD inhibitors, and the flavonoid luteolin-3',7 glucuronide had the best effect. The results also showed that affinity and ultrafiltration, ultra-performance liquid chromatography-mass spectrometry (UPLC-MS) and molecular docking technology can provide a powerful tool for the analysis of XOD inhibitor components in natural products.
ABSTRACT
<p><b>OBJECTIVE</b>To determine the effects of organic amine diphenhydramine on the 3-(4, 5-Dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide dye (MTT) reduction assay.</p><p><b>METHODS</b>The primarily cultured cortical astrocytes were incubated with various concentrations of diphenhydramine for 24 h. To analyze the effects of diphenhydramine and other organic amines on the MTT assay, the data obtained from the MTT assay were compared with the results obtained from morphological observation and hoechst 33342 and propidium iodide (PI) nucleus double staining.</p><p><b>RESULT</b>The MTT assay showed that diphenhydramine (10(-4)mol/L), pyrilamine (10 (-4)mol/L) and zolantidine (10 (-5)mol/L) caused a significant increase in MTT reduction in astrocytes. However there was no proliferation, apoptosis or necrosis detected by hoechst and PI nucleus double staining. Light microscopy revealed that exocytosis of formazan granules was inhibited by diphenhydramine.</p><p><b>CONCLUSION</b>Diphenhydramine and other organic amines may enhance MTT reduction by suppression of MTT formazan exocytosis in astrocytes, which may affect the results of cell viability studies.</p>