A total of 120 medical students were surveyed to investigate the current status of communication between medical students and old patients and the awareness of medical laws. The questionnaire shows many students don't have enough knowledge of communication skills and medical laws. Furthermore, the most important reason of the medical disputes is the lack of communication between doctors and patients so the cultivation of communication skills and legal knowledge should be strengthened.

Objective To compare the thickness of the retina and its sublayers between young and elderly rats using a stereological method. Methods Six young(3 months old) and six elderly(2 year old) LongEvans rats were used in this study.The right eyeball was dissected from each rat and prepared as a set of serial sagittal sections and applied with HE staining.The sections and fields were sampled in the systematic random fashion and examined under a light microscope.The thickness of the whole retina and its 8 sublayers were identified and measured. Results Compared with that of the young rats,the thickness of the whole retina and most of the sublayers of the elderly rats were significantly decreased.The decrease was such so that the proportion of the thickness of each sublayer to that of the whole retina remained unchanged.Most interestingly,among the 8 sublayers of the retina,the thickness of the exterior plexus layer reduced nearly 46.2% during aging process.Conclusion Aging has a significant effect on the thickness of the rat retina.Such effect is better presented with the systematic random sampling method.

Objective To study the correlation between the mental health of family members of patients with schizophrenia and their coping style. Methods From December, 2014 to January, 2015, a total of 312 family members of patients with schizophrenia in 5 blocks were included. They were surveyed with self-made questionnaire, Self-rating Depression Scale (SDS), Self-rating Anxiety Scale (SAS) and Simplified Coping Style Questionnaire. The results were compared with the national normal model, and the correlation between SDS, SAS and the coping style was also analyzed. Results Compared with the normal model, the SDS (t=34.39, P<0.001), SAS (t=73.09, P<0.001) scores were higher in schizophrenia families, and they used positive coping style (n=128, 41%) less (t=-16.70, P<0.001), and more often used negative coping style (n=184, 59%) (t=-66.24, P<0.001). The SDS (r=-0.14, P<0.05), SAS (r=-0.15, P=0.01) scores were negatively correlated with positive coping style, the SAS score was positively correlated with negative coping style (r=0.27, P<0.001). Multivariate Lo-gistic regression analysis showed that women were prone to be anxiety and depressed compared with men (P<0.05); the divorcees were prone to be depressed compared with thoses not divorced. Education level and average monthly household income were factors influencing their coping style (P<0.05). Conclusion The mental health of family members of patients with schizophrenia is not optimistic, the female family members are more likely to be depressed and anxious than males. People with low education level and poor economic conditions more often use negative coping style, which need to be focused on, and to take appropriate and effective intervention.

Objective:To analyze the level and related factors of burden of care,quality of life in family members of patients with schizophrenia.Methods:Totally 312 family members of patients with schizophrenia in 5 blocks of Jing'an District,Shanghai,who consented the investigation,were investigated.Burden of care were evaluated with the Zarit Caregiver Burden Interview (ZBI),and quality of life of the relatives by World Health Organization Quality of Life BREF (WHOQOL-BREF) and Chinese Residents SWB abridged (SWBS-CC20).ZBI score equal or higher than 39 indicated a heavy burden of care,while the score less than 39 indicated a low burden of care.Results:Totally 199 cases (63.8％) were in a heavy burden,whose ZBI score was (52.1 ± 10.8),and 113 cases (36.2％) were in a low burden with a mean score of (23.1 ± 10.4).Their WHOQOL-BREF score and SWBS-CC20 score were lower than normal model (Ps ＜ 0.001).The burden was heavy to those whose spouse was involved (β =-7.76).Patient's age was negatively correlated with quality of life (β3 =-0.18).Relationship with the patient,education level and monthly family income were positively correlated with quality of life (β =1.65,1.68,1.66).Conclusion:Those families of patients with schizophrenia,who are aged,low educated,low paid,or whose spouse have been diagnosed with schizophrenia,may have a heavy burden of care,and low quality of life.

Objective To explore the changes of serum nitric oxide(NO) and trace element Zinc in children with pneumonia and their clinical significance.Methods The observing group contained 48 patients with pneumonia in our hospital from Oct.2005 to May 2006,who were collected 3 mL of blood sample on empty stomach on the second day.Twenty-six of them had been collected serum during their convalescence stage.The control group contained 20 children,who were healthy in the same stage.The levels of NO of 48 pneumonia,26 convalescence stage(recovery group) and 20 healthy patients were determined by UV-2100 spectrophotometer.The Zinc in serum was determined by P-E503-mode atomic absorption spectrophotometric analysis antigenic in those patients.Blood viscosity was measured and analyzed with the statistic analysis SPSS 10.0 software.Results The levels of NO in pneumonia children[(57.76?19.41) ?mol/L] were significantly higher than that in control group [(25.09?5.51) ?mol/L] and recovery group[(30.08?8.05) ?mol/L](P_a

Objective To further improve the morphological materials of AGs by micro-dissection, histology and CT, we observed the arachnoid granulations (AGs) in middle cranial fossa. Methods Thirty-three adult cadaveric heads were used for microsurgical dissection;Histological sections of AG specimens from 3 cadaver heads were examined. Forty patients who had both normal conventional brain CT and computed tomographic venography (CTV) were retrospectively reviewed. Results In middle cranial fossa the AGs occur in the following situations in order of frequency: the middle meningeal sinus, sphenoparietal sinus, lateral foramen rotundum and cavernous sinus. AGs usually show round, oval in shape and irregular in shape. AGs can be divided into individual type and leaflet type under light microscope. The numbers of AGs were observed by microanatomy and CTV were 8.72 and 3.52 respectively. The AGs of cavernous sinus was not localized precisely on CTV. Conclusion Study of the AGs in the middle cranial fossa systematically and comprehensively enriches anatomy and image knowledge. It is helpful in neurosurgical planning and choosing operalion procedure to avoid postoperative complications.

ObjectiveCluster analysis method was applied to analyze the data of brick-tea-born fluorosis,to clarify the provincial and municipal classification hierarchy in nation-wide epidemic areas and to guide the prophylaxis and treatment of the disease.MethodsPrevalence survey database of the 2007 national brick-tea-born fluorosis was analyzed.Detection rate of second degree and above clinical skeletal fluorosis as clustered index,clustering analysis of all survey data was carried out,clustering figure was drawn,and analysis of variance and multiple comparison was done.ResultsThe provincial level of the nation-wide epidemic areas of the brick-teaborn fluorosis could be classified into three categories:the first category including Tibet and Sichuan province,the second category including Qinghai province,and the third including Inner Mongolia,Gansu,Xinjiang and Ningxia provinces; The city-level they were also could be classified into three categories:the first category including Aba,Shigatse region and Lhasa,the second including Wulanchabu,Hulun Buir,Baotou,Qinghai state,Guoluo state,Haixi state,Xining city,Haidong state,Ganzi state,Longnan city,Jiuquan city,Urumqi city and the state of Bortala,and the other cities were the third category cities.The differences of clinical skeletal fluorosis detection rate between the first,second,and third provincial and municipal categories(35.18％,16.21％,5.22％,41.16％,19.64％,4.19％) were statistically significant (all P ＜ 0.05).ConclusionsBrick-tea-born fluorosis can be classified by using cluster analysis at the provincial and municipal levels.Cluster analysis results can provide a scientific basis for effective implementation of the prophylaxis and treatment of brick-tea-born fluorosis.

Orobanche caerulescens is an important medicinal resource in Orobanchaceae. The present study aims to establish methods for determination of acteoside, crenatoside, and total phenylethanoid glycosides in O. caerulescens, and determine the content in 15 samples to evaluate the resource utilization of this medicinal plant. The content of acteoside and crenatoside were quantitatively determined by HPLC, while total phenylpropanoid glycosides was estimated by UV-VIS spectrophotometry. According to the results, the content of acteoside was the highest in O. caerulescens, followed by crenatoside. The contents of acteoside, crenatoside, and total phenylethanoid glycosides were between 1.15% - 15.60%, 0.83% - 4.47%, and 6.78% - 27.43%, respectively, which had significant differences. The acquisition time has great influence on the content of main components of O. caerulescens. The content of phenylethanoid glycosides is higher in the samples which were collected at the flowering stage. The two determination methods were proved to be simple, accurate and reliable, and can be used to evaluate the quality and resource utilization of O. caerulescens.
Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; analysis ; Glycosides ; analysis ; Orobanche ; chemistry

Hydrochlorothiazide ; pharmacology ; Pharmacogenetics

BACKGROUND: Emerging studies have focused on cell transplantation. Schwann cells (SCs) can secrete various neurotrophic factors and improve local environment around injury. Plenty of documents have demonstrated that SCs could promote functional recovery following spinal injury. Many transplanting methods are available for treating spinal cord injury, and the intravenous cell transplantation is profitable for easy operation and avoidance of additional trauma. OBJECTIVE: To investigate the effects of intravenous transplantation of SCs on spinal cord injury in rats. METHODS: The bilateral sciatic nerves of Wistar rats were separated in vitro, cultured by tissue clot method, identified by S-100 and labeled by Hoechst33342. Sixty rat models with T10 spinal cord injury were prepared using impactor model- II type weight drop apparatus. Then the injured rats were randomly divided into 3 groups: blank control, DMEM control and SCs transplantation groups. No treatment was performed in the blank control group. Totally 1 mL DMEM and or SCs was injected into rats of DMEM control and SCs transplantation groups by tail vein respectively. Basso Beattie Bresnahan (B6B) scores were performed at 1 day before and 1, 3 days, 1 week and weekly after operation. The migration of transplanted SCs was observed at 2 weeks and 4 after transplantation. The expressions of glial fibrillary acidic protein (GFAP) and neuron specific enolase (NSE) were detected by haematoxylin-eosin staining and immune-fluorescence staining.RESULTS AND CONCLUSION: The purity of SCs reached 95%. Hoechst33342 positive cells were observed throughout the injured and the nearby region of spinal cord at 1, 2, and 4 weeks after transplantation. The statistical difference of BBB score among the SCs transplantation, blank control, and the DMEM control groups displayed at 4 weeks after transplantation (P < 0.05), and the BBB scores of the SCs transplantation were higher than other groups. Haematoxylin-eosin staining showed the cavity formed in each group at 8 weeks after transplantation, but the area of SCs transplantation was smaller than that of the blank control and DMEM control groups. The immunofluorescence staining indicated that the expression of GFAP were more intense in the blank control group and DMEM control than SCs transplantation (P < 0.05), while the expression of NSE was more intense in SCs transplantation than other groups (P< 0.05). It implied that intravenous transplantation of SCs promotes regeneration of axon and improves neurological functions after spinal cord injury in rats.