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Objective@#To analyle prevalence and trend of substance abuse behaviors among adolescents in Guangdong province and to provide theoretical evidence for effective interventions.@*Methods@#Data regarding smoking, drinking, drugs abuse from Adolescents Health Risk Behavior Survey in 2007, 2010, 2013 and 2016 were collected and comparatively analyzed.@*Results@#The incidences of tried smoking(27.37%), current smoking(8.32%), passive smoking(45.52%), current drinking(27.97%) and drug using(0.75%) in 2016 were lower than that in 2007(32.40%, 10.81%, 52.69%, 31.97%, 1.35%), and the average annual decrease rate were 1.89%, 2.95%, 1.64%, 1.50%, 6.75%, respectively(χ2=152.73, 92.50, 313.92, 46.48, 46.64, P<0.01). During the past decate, the incidences of current smoking in rural adolescents(12.02%, 10.64%, 9.99%, 10.10%) were significantly higher than that in urban adolescents(8.88%, 8.52%, 8.17%, 6.56%)(χ2=54.46, 26.62, 25.23, 100.43, P<0.01); the incidences of current drinking in urban adolescents(33.57%, 30.37%, 35.76%, 30.46%) were significantly higher than that in rural adolescents(30.97%, 28.48%, 28.47%, 25.32%)(χ2=16.71, 10.13, 153.47, 81.76, P<0.01); the incidence of current drinking was the highest among college students in each monitoring year(47.71%, 41.76%, 42.36%, 37.77%)(χ2=583.37, 681.25, 610.04, 729.02, P<0.01); the incidence of current smoking was the highest among vocational school students in each monitoring year(16.36%, 17.00%, 14.90%, 16.71%)(χ2=256.45, 515.61, 339.63, 742.52, P<0.01); In addition to the incidence of drug abuse was the highest among college students in 2010(2.02%), vocational school students were the highest in other years(χ2=66.92, 34.38, 23.08, 20.55, P<0.01).@*Conclusion@#Smoking and drug abuse among adolescents in Guangdong showed a declining trend by years, as well as the prevalence of drinking behavior. Strengthened intervention should be targeted on smoking behavior among rural students, drinking behavior among urban students, and smoking behavior and drug abuse among vocational school students.
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Objective:To observe the effect of reduced glutathione whitening facial mask (RGWFM) on melasma.Methods:Thirty two eligible patients (31 females, 1 male, aged 28-50 years, with mean 37.5 years) were recruited to use RGWFM for 15-20 min per night. Four weeks and eight weeks later, MASI, PGA, patient self-evaluation, VISIA, ILQI and side effects were evaluated.Results:After 4 weeks` and 8 weeks` treatment, MASI index was decreased for 3.66±2.59 and 7.00±4.51 compared to the base line ( t=7.99 and 8.78 after 4 weeks and 8 weeks, P<0.05). PGA was 4.50 and 3.33 at the same time. 87.50% of the patients felt satisfied. Only one patient showed a transient burning sensation on the face. Melanin value of the VISIA was decreased for 44.24±30.52 in 4 weeks later ( t=8.19, P<0.05) and decreased for 59.95±39.47 in 8 weeks later ( t=8.59, P<0.05). 65.63% of the patients DLQI score were higher than 16 points at the beginning. The percentage was 37.50% after 8 weeks. No side effect was observed in the other patients. Conclusion:It is indicated that RGWFM is safe and has certain therapeutic effects on melasma.
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Objective@#To describe the dermoscopic features of extramammary Paget′s disease (EMPD) and chronic eczema of the vulva, and to explore the value of dermoscopy in the diagnosis and differential diagnosis of the above diseases.@*Methods@#Dermoscopic images were collected from 20 patients with histopathologically confirmed vulvar EMPD and 16 patients with clinically confirmed chronic eczema of the vulva in Hospital for Skin Diseases, Chinese Academy of Medical Sciences and Pekin Union Medical College from January 2017 to April 2018, and retrospectively analyzed. Fisher′s exact test was used to compare the prevalence of dermoscopic features between the two groups.@*Results@#As dermoscopy showed, the milky red background was observed in 19 EMPD patients and in only 1 patient with chronic eczema, and there was a significant difference in the prevalence of milky red background between the two groups (P < 0.001) . White scales were the most common desquamation, and were observed in 9 EMPD patients and 13 patients with chronic eczema (P = 0.128) . Blood vessels were uniformly distributed in EMPD patients, including dotted-globular vessels in 19 and linear vessels in 14, while blood vessels were distributed in a patchy or clustered pattern in the patients with chronic eczema, including dotted-globular vessels in 16 and linear vessels in 7. There was a significant difference in the prevalence of different distribution patterns of blood vessels between the two groups (P < 0.001) . Bright white streaks, bright white structureless area and reticular structure were observed in 19, 20 and 19 EMPD patients respectively, and in 1, 1 and 1 patient with chronic eczema respectively, and there were significant differences in the prevalence of the above 3 structures between the two diseases (all P < 0.001) .@*Conclusion@#Vulvar EMPD and chronic eczema both show characteristic dermoscopic features, and dermoscopy is of great value to the diagnosis and differential diagnosis of EMPD.
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Objective To describe the dermoscopic features of extramammary Paget's disease (EMPD) and chronic eczema of the vulva,and to explore the value of dermoscopy in the diagnosis and differential diagnosis of the above diseases.Methods Dermoscopic images were collected from 20 patients with histopathologically confirmed vulvar EMPD and 16 patients with clinically confirmed chronic eczema of the vulva in Hospital for Skin Diseases,Chinese Academy of Medical Sciences and Pekin Union Medical College from January 2017 to April 2018,and retrospectively analyzed.Fisher's exact test was used to compare the prevalence of dermoscopic features between the two groups.Results As dermoscopy showed,the milky red background was observed in 19 EMPD patients and in only 1 patient with chronic eczema,and there was a significant difference in the prevalence of milky red background between the two groups (P ＜0.001).White scales were the most common desquamation,and were observed in 9 EMPD patients and 13 patients with chronic eczema (P =0.128).Blood vessels were uniformly distributed in EMPD patients,including dotted-globular vessels in 19 and linear vessels in 14,while blood vessels were distributed in a patchy or clustered pattern in the patients with chronic eczema,including dotted-globular vessels in 16 and linear vessels in 7.There was a significant difference in the prevalence of different distribution patterns of blood vessels between the two groups (P ＜ 0.001).Bright white streaks,bright white structureless area and reticular structure were observed in 19,20 and 19 EMPD patients respectively,and in 1,1 and 1 patient with chronic eczema respectively,and there were significant differences in the prevalence of the above 3 structures between the two diseases (all P ＜ 0.001).Conclusion Vulvar EMPD and chronic eczema both show characteristic dermoscopic features,and dermoscopy is of great value to the diagnosis and differential diagnosis of EMPD.
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<p><b>OBJECTIVE</b>To evaluate the effect of compound bushen recipe (CBR) in improving the survival state of stress and the overall life span in C. elegans by simulating chronic fatigue syndrome (CFS) under various stress states.</p><p><b>METHODS</b>The tolerance and the average survival time of adult larvae against heat stress (35 degrees C), oxidative stress (250 microg/mL juglone), and in vivo Abeta protein toxicity (Abeta(1-42) transgenic mutant CL4176) under the intervention of the high (500 mg/L), middle (250 mg/L), and low (100 mg/L) dose CBR were observed. The effect of CBR on the average live time (at 25 degrees C), movement distance in 20 seconds, the frequency of pharyngeal pump in 30 seconds, and the reproductive capability were assessed.</p><p><b>RESULTS</b>Compared with the control group, the survival time of heat stressed C. elegans could be significantly increased in each CBR group (P < 0.01). The survival time of heat stressed C. elegans could be elongated, the protein toxicity be attenuated, and the live time prolonged in the high and middle dose CBR groups (P < 0.01, P < 0.05).The movement distance and the frequency of pharyngeal pump could also be increased in the high dose CBR group (P < 0.01). There was no statistical difference in the reproductive capability among all groups (P > 0.05).</p><p><b>CONCLUSIONS</b>CBR could significantly enhance the stress capacity of C. elegans against internal and external environment, and prolong their lifespan. It did not interfere their normal production, and also could improve the quality of life, thus laying a foundation for further mechanism studies and pharmacological researches on CBR in preventing and treating CFS.</p>
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Animals , Caenorhabditis elegans , Disease Models, Animal , Drugs, Chinese Herbal , Therapeutic Uses , Fatigue Syndrome, Chronic , Drug Therapy , Longevity , Stress, PhysiologicalABSTRACT
Objective To investigate the value of remifentanil IV PCA joint doula in labor analgesia.Methods 480 single fetus at term vaginal delivery of maternal patients were randomly divided into four groups:120 cases voluntary implementation of remifentanil IV PCA joint doula maternity paternity were selected as the experimental group; 120 cases in control group an order to carry out the studies in our hospital childbirth select one to one Doula paternity maternal; 120 cases voluntary implementation of the control group 2 intravenous analgesia with remifentanil maternal;120 cases in control group three normal deliveries in our hospital does not take any measures of maternal.The analgesic effect,labor time,postpartum hemorrhage,cesarean section rate,neonatal asphyxia,the medical staff satisfaction were compared in four groups.Results Analgesic effect of experimental group and control group 2 was significantly better than the control group 1 and the control group 3,the differences were statistically significant (t =4.34,4.76,4.94,5.32,6.32 ;4.42,4.71,4.86,5.28,6.26,all P ＜ 0.05).The first,second,third labor stage of experimental group were (516 + 123)min,(29 + 10)min,(8 + 4)min,which were shorter than those of the other groups (t =3.76,4.21,4.18,all P ＜ 0.05).Conclusion Remifentanil IV PCA joint Doula is safe and easy for labor analgesia.
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This study established a finite element (FE) model of human body head (HBM-head) in accordance with human head anatomy.The anatomical structure of HBM-head was described in detail,primarily consisting of scalp,skull,dura mater,cerebrospinal fluid,pia mater,cerebrum,cerebellum,ventricle,brain stem,falx,and tentorium.The kinematic and kinetic responses,as well as the intracranial pressure distribution of the head model were compared with the data from the cadaveric impact tests to validate the head FE model.Experimental results confirmed that the head FE model had good biofidelity and could be used to study head-brain trauma in vehicle collisions and the underlying injury mechanisms.
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<p><b>OBJECTIVE</b>To study which classification model was most suitable for establishing a multi-tumor markers lung cancer prediction model, through established logistic regression model, decision trees model and artificial neural network model.</p><p><b>METHODS</b>RIA analysis, ELISA, spectrophotometry, high-performance liquid chromatography (HPLC) and atomic absorption spectrometry were used to measure the serum CEA, CA125, gastrin, NSE, beta2-MG, Sil-6 receptors, sialic acid, nitric oxide, Cu, Zn, Ca and the pseudo-urine nucleoside of urine samples in lung cancer patients, benign lung disease patients and healthy controls. The lung cancer diagnosis models were established by logistic regression analysis, decision tree analysis and artificial neural network training.</p><p><b>RESULTS</b>The diagnosis sensitivities of the logistic regression analysis, decision tree analysis and artificial neural network model with 12 tumor markers in lung cancer were 94.00%, 100.00% and 100.00%; the specificity were 100.00%, 98.89% and 100.00%; the total accurate 94.29%, 95.00% and 90.00%, respectively.</p><p><b>CONCLUSION</b>The results of three classification models with 12 tumor markers in diagnosis of lung cancer are ideal. Especially the C5.0 decision tree model and the artificial neural network model are more suitable for the prediction and diagnosis of the lung cancer.</p>
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Aged , Female , Humans , Male , Middle Aged , Biomarkers, Tumor , Decision Trees , Logistic Models , Lung Neoplasms , Diagnosis , Neural Networks, ComputerABSTRACT
AIM:To prepare sustained release matrine tablet,and study its drug release test in vitro. METHODS: In combination with HPLC,we studied the cumulative matrine release using HPLC and EC as the sustained materials. RESULTS: The release of matrine was conformed to Higuchi equation. CONCLUSION: The drug release behavior could be well described in vitro,and meet the design criteria,it is easy to be produced.