1.The comparison study of the Auto-CPAP application to treating and titrating severe OSAHS patients in daytime nap and nocturnal sleep
Chao GUO ; Qin YU ; Xizhen HUANG
Chinese Journal of Practical Internal Medicine 2001;0(02):-
Objective To find out the difference or the regularity by the comparison study on the Auto-CPAP application to treating severe OSAHS patients in daytime nap and nocturnal sleep.It also supplies an evidence for reducing the expense in treating and testing severe OSAHS patients.Methods The patients who complained of snoring or dyspnea during sleeping and excessive daytime somnolence were selected as the subjects.They were monitored by PSG or Auto-CPAP ventilator system.Meanwhile their somnolent level were estimated by Epwoth.After that the patients with more than 20 AHI were selected as the advanced subjects.They were treated respectively in daytime nap and in the nocturnal sleep.And the daytime treating time lasted more than one hour and less than two hours and thirty minutes.Monitoring items included AHI,AI,HI,the longest duration of apnea or hyponea(LAHT),the lowest SaO\-2,the highest CPAP pressure(HP),median pressure(MP),90% pressure(90%P) and 95% pressure(95%P).Results The therapeutical effect is distinguished and is the same with the severe OSAHS in both daytime nap and nocturnal sleep.And also they need the same CPAP pressure level basically.Conclusion The CPAP pressure level titrated in daytime nap treatment period can be used in the nocturnal sleep therapy for severe OSAHS patients.
2.Study on the Effects of PM_(2.5) and PM_(10) in Sand Storm Dust on Secretion of Inflammatory Factors in Alveolar Macrophages of Rat
Xuelian HUANG ; Yu JIN ; Xinbiao GUO
Journal of Environment and Health 1993;0(01):-
Objective To study the effects of PM2.5 and PM10 of dust storm on the secretion of nitrogen oxide(NO), interleukin-8 (IL-8) and tumor necrosis factor-?(TNF-?)in the alveolar macrophages(AM)of rat in vitro. Methods PM2.5 and PM10 were collected during dust storm period in the urban area of Beijing. The tested cells were primary cultured alveolar macrophages. Cytotoxicity of the particles was measured by MTT assay. The content of NO was determined using Griess reagent. The levels of cytokines IL-8 and TNF-? were determined using radioimmunity assay. Results After treatment for 24 h, PM2.5 and PM10 caused cytotoxicity to AM and the survival rate of the cells was decreased with the increasing exposure dose of the dust to the rats and the survival rate of the cells in the high dosage group was 80% of the control group. At concentrations of 20~150 ?g/ml, PM2.5 and PM10 increased the secretion of NO, TNF-? and IL-8 in AM in a dose-dependent manner. The cytotoxicity of PM2.5 was stronger than that of the PM10 at the same concentration, while the effects on the increasing secretion of NO, IL-8 and TNF-? induced by PM2.5 was smaller than that of the PM10. Conclusion PM2.5 and PM10 of dust storm could induce the secretion of inflammatory factors NO, IL-8 and TNF-? in rat AM.
3.MRI features of mucinous breast carcinoma
Huang HUANG ; Yan ZHANG ; Yongxi LIU ; Yu TAN ; Qinglu GUO
Chinese Journal of Medical Imaging Technology 2017;33(5):652-656
Objective To explore MRI features of mucinous breast carcinoma.Methods MR data of 34 patients with mucinous breast carcinoma confirmed by histopathology were analyzed retrospectively,including lesions morphology,maximum diameter,T1WI and T2WI signal characteristics,features of internal reinforcement,time-intensity curve (TIC) type,DWI and ADC characteristics.Results There were 22 cases of pure tumors and 12 mixed tumors;21 cases were mass types,6 cases were non-mass types,and 7 cases were multiple nodular types.On T1WI,there were low signal intensity in 22 case,equal signal in 10 cases,and mixed high signal in 2 cases.On fat suppression T2WI,20 cases showed high signal,13 cases showed mixed high signal and 1 case showed low signal,and 19 cases showed low signal fiber separation inside.Dynamic contrast enhancement showed typical circinate enhancement in 11 cases.TIC of 11 cases were wash-in types,18 cases were lateau types and 5 cases were wash-out types.Conclusion MRI features of mucinous breast carcinoma has certain characteristics.MRI is helpful to diagnosis of mucinous breast carcinoma
4.The diagnostic value of low-dose CT on neonatal pneumothorax
Huang HUANG ; Yongxi LIU ; Xiaoli WANG ; Yu TAN ; Qinglu GUO
Journal of Practical Radiology 2017;33(2):273-275
Objective To explore the value of low-dose CT in assessment of neonatal pneumothorax.Methods Low-dose CT and chest radiographys were performed in 98 neonates with clinically suspected of pneumothorax.Results Pneumothorax was detected in 98 neonates by low-doseCT, compared with 84 neonates by chest radiography.The sensitivity of low-dose CT was higher than that of chest radiography (P =0.026<0.05). Conclusion Low-dose CT provides a reliable assessment of neonatal pneumothorax and a guide for clinical diagnosis and treatment.
5.Preliminary Study on Personality Characteristics of Abused Children
Shi-chang, YANG ; Ya-lin, ZHANG ; Yu-ping, CAO ; Guo-ping, HUANG ; Guo-yi, GUO
Journal of Applied Clinical Pediatrics 2005;20(7):716-718
Objective To explore the personality characteristics of abused children in order to reduce the incidence of child abuse.Methods Two hundred and ninty five middle school students were investigated with general questionnaire and Eysenck Personality Questionnaire of children. Eighty six students experiencing child abuse (CA) last year as study group and one hundred and ninety six non-abuse children as controls (NCA) were analyzed by means of Eysenck Personality Questionnaire of children.Results The score of neuroticism in CA group was significantly higher than that in the control group (55.62±10.60/52.65±10.98,t=-2.114 P=0.035). The score of lie in CA group was significantly lower than that in control group (42.21±9.87/46.04±9.20,t=3.184 P=0.002). On the impact of different sex, the psychoticism score of male was significantly higher than that in the control group(52.37±11.49/48.04±9.97,t=-2.227 P=0.028), and the lie score was significantly lower than that in control group(41.03±9.18/46.18±8.79,t=3.125 P=0.002).The scores of those in the female were not significant.Conclusions There is a close association between the unstable emotion and child abuse in children, so training emotional self-control and emotional expression of children might be a intervention strategy in the future. In addition, the frequency of lie in children is probably one of factors that determine whether children are abused or not.
6.Detection of agent "zhuanggenling" and investigation of utilization of plant growth retardants in traditional Chinese medicine cultivation.
Yu-yao ZHAI ; Bao-lin GUO ; Wen-hua HUANG
China Journal of Chinese Materia Medica 2015;40(3):414-420
Plant growth retardant as one of plant growth regulator can inhibit the cell division, elongation and growth rate in shoot apical meristem (SAM), which can be reversed by gibberellin regulate the product of photosynthesis transfer to the root and rhizome part. As commonly used plant growth retardant, paclobutrazol, uniconazole, chlorocholine chloride, mepiquat chloride, choline chloride and daminozide are used to promote the growth of root and rhizome, call as "zhuanggenling", "pengdasu", "pengdaji" etc. Single or recombination of plant growth regulator is registered as pesticide, and called as pesticide "zhuanggenling" in this paper. Growth regulator which registered as a foliar fertilizer or fertilization was called agricultural fertilizer "zhuanggenling" in this paper. The author investigate the usage of "zhuanggenling" in the root and rhizome of medicinal plants cultivation from 2012 to 2014 in Sichuan province, Huangyuan town, Mianyang (Ophiopogonis Radix); Pengzhou Aoping town (Chuanxiong Rhizoma); Pengshan Xiejia town (Alismatis Rhizoma); Jiangyou Taiping town and Zhangming town (Aconiti Lateralis Radix Praeparata); Yunnan Wenshan (Notoginseng Radix et Rhizoma); Henan province, Wuzhidafeng Town (Rehmanniae Radix, Achyranthis Bidentatae Radix, Dioscoreae Rhizoma); Gansu Min county (Codonopsis Radix, Angelicae Sinensis Radix); Gansu Li county (Rhei Radix et Rhizoma). The result showed that "zhuanggenling" were applied in the most medicinal plant cultivation except Rhei Radix et Rhizoma. It has been applied widespreadly in Ophiopogonis Radix, Alismatis Rhizoma, Achyranthis Bidentatae Radix, Codonopsis Radix; Rehmanniae Radix, commonly in Angelicae Sinensis Radix application, and occasionally in Chuanxiong Rhizoma, Aconiti Lateralis Radix Praeparata, Notoginseng Radix et Rhizoma and Dioscoreae Rhizoma. In 53 collected sample from plantation areas, fifteen (28%) were pesticide "zhuanggenling", thirty-eight (72%) were pesticide "zhuanggenling". UPLC analysis results showed that 38 farmers fertilizer "zhuanggenling" content of 6 kinds of plant growth retardant. It is regarded that fertilizer "zhuanggenling" was dominant in medicinal plant cultivation, and that the plant growth retardant is added widespreadly in farm fertilizer "zhuanggenling". All evidence proves conclusively that "zhuanggenling" have been used in the proper way, whereas some others have been misused or even abused in the use regarding to type, number, use frequency. The root or rhizoma are increased to 20%-200%. But there is lack of evaluation to appraise the quality of medicinal materials from the aspects of research or industry. "zhuanggenling" has become a important Chemical control material besides fertilizer, insecticidal sterilization of pesticide
China
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Fertilizers
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Medicine, Chinese Traditional
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Plant Growth Regulators
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pharmacology
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Plants, Medicinal
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growth & development
9.Influencing factors of physicians' turnover intention at public county hospitals: a career stage perspective
Dongmei HUANG ; Wenqiang YIN ; Qianqian YU ; Kui SUN ; Hongwei GUO
Chinese Journal of Hospital Administration 2014;30(12):930-934
Objective To analyze influencing factors of physicians' turnover intention at public county hospitals from career stage perspective.Methods Physicians career life was divided into three stages according to professional ranks and titles.The sample was drawn using stratified multistage random methods from public county hospitals in Shandong province and 677 questionnaires were completed,giving a 90.3% valid response rate.Data were analyzed using multi-group stepwise linear regression.Results The percentage of responders with middle and high-level turnover intention was 23.0%and 6.5% respectively,and there was no statistically significant difference in turnover intention across three stage subgroups.In physicians at stage 1,the most important factors to predict turnover intention were superiors ' appreciation (r =-0.22,P < 0.05) and payment rationality (r =-0.21,P<0.05),while in physicians at stage 2,the most important predicting factors were autonomy (r=-0.39,P<0.05)and learning demand(r=-0.22,P<0.05),and in physicians at stage 3 were career development(r=-0.31,P<0.05)and autonomy(r=-0.21,P<0.05).Conclusion Autonomy and workload are common factors of turnover intention with different predicting power across three career stages.Physicians adjust their career needs to self-actualization with development of career stage,so welltargeted incentives should be taken to stabilize the medical staff of public county hospitals.
10.Expression of focal adhesion kinase in human lens epithelial cells induced by hydrogen peroxide
Yu, HUANG ; Qian-li, MENG ; Hai-ke, GUO
Chinese Journal of Experimental Ophthalmology 2013;31(10):914-918
Background The pathogenesis of age-related cataract is associated with the apoptosis of lens epithelial cells (LECs) caused by oxidative stress.Previous studies showed that intracellular focal adhesion kinase (FAK) pathway can be activated by H2O2 in vitro,which induced apoptosis of cells.To investigate the effect of oxidative on FAK expression in LECs is one of important studies in the prevention of age-related cataract.Objective This study was to investigate the expression and function of FAK in human LECs treated by H2O2.Methods Human LECs strain (HLECs-B3) were cultured in vitro in the low glucose DMEM with 10% fetal bovine serum.Different concentrations (0,30,50,70,100,300,500,700,1000 μmol/L) of H2O2 were added into the culture medium for 24 hours.The survival rate of the cells was detected by Cell Counting Kit-8 (CCK-8) assay.Cell morphology as well as the expression and distribution of FAK in the cells were observed by immunofluorescent staining under the laser confocal microscope.Apoptosis was observed by hoechst33258 staining,and Western blot assay was used to quantitatively detect the expression and phosphorylation of FAK.Results The survival rate of the cells was (1.00±0.03) %,(1.24±0.03)%,(1.36±0.24) %,(0.93±0.02)%,(1.75±0.19)%,(1.37±0.18) %,(0.64±0.01)%,(0.59±0.11)%,(0.14±0.05)% in 0,30,50,70,100,300,500,700,1000 μmol/L H2O2 groups,with a significant difference among them (F =95.30,P =0.00).The survival rates of the cells in the below 300 μmol/L H2O2 groups were significantly higher than those in the 0 μmol/L H2O2 group,and survival rates of the cells in the above 500 μmol/L H2O2 groups were significantly lower than those in the 0 μmol/L H2O2 group(all at P<0.05).After H2 O2 treatment for 24 hours,HLECs-B3 cells transformed from polygon shape to spindle shape and extended pseudopodiums,meanwhile the green fluorescence for FAK exhibited in the cytoplasm.Cell apoptosis was found in the 1000 μ mol/L H2O2 group.Western blot assay revealed that the expressing levels (grey scale) were significantly different among the various groups (F=28.08,P=0.00),and FAK expressing levels in the below 300 μmol/L H2O2 groups were significantly higher than those of the 0 μmol/L H2O2 group; while the expressing levels in the above 500 μmol/L H2O2 groups were lower than those of the control 0 μmol/L H202 group (all at P<0.05).After treated by different concentrations of H2O2,the phosphorylation level of intracellular FAK (p-FAK) was significantly higher in 3 hours group than that in 30 minutes group (all at P<0.05).Conclusions H2 O2 can affect the survival,proliferation and morphology of human LECs by activating the intracellular FAK pathway,indicating that FAK may play roles in the regulation process of cell biological behavior.