Health Promotion ; organization & administration ; Humans ; Occupational Health ; Occupational Health Services ; organization & administration ; Risk Assessment

Objective To explore the effect of psychological intervention on knee osteoarthritis patients. Methods A total of 92 OA patients were included into a one-month randomized controlled followup study, 47 of them were treated with combined psychological intervention, the other 45 cases were routinely treated. All cases were investigated on their demographic information , physiological parameters and score of the short form-36 health survey questionnaires (SF-36), self-rating depression scale (SDS) and self-rating anxiety scale (SAS). Statistics method used t-test and variance analysis. Results There was no signi-ficant difference in terms of the physiologic parameters changes between before and after treatment (P＞0.05) of the two groups. ① The SDS scores of the two groups decreased gradually after the treatment (P＜0.05),while there was remarkable descending of SDS score in patients of psychological intervention group (P＜0.05). ② The SAS scores of the two groups decreased gradually after the treatment (P＜0.05). And there was no significant difference between the two groups (P＞0.05). Compared with the non-intervention group, the fourfactors scores including physical function, pain, vitality and role limitations due to emotional problems of the intervention group were significantly improved (P＜0.05). Anegative correlation was observed between SDS and PF, BP, GH, VT and SF (r=-0.739-0521,P＜0.05). SAS was correlated negatively with VT and SF (r=-0.699～-0.475,P＜0.05). Conclusion Psychological intervention could ameliorate the depression of knee osteoarthritis patients. The quality of life of knee osteoarthritis patients can be improved by psychological intervention.

Adult ; Arteriovenous Malformations ; Humans ; Male ; Telangiectasia, Hereditary Hemorrhagic

Objective To investigate the effects of exogenous transforming growth factor-β3 (TGF-β3) on the expression of endogenous TGF-β3 and proliferation of rat hepatic stellate cells (HSC).MethodsRat HSC cells were seeded in 24-well plates and were divided into 2 groups.One group of cells were exposed to TGF-β3 of different concentrations (0.08,0.4,2,10 and 50 ng/ml) for 2 hours and then the cell culture supernatant was collected; the other group of cells were exposed to 10 ng/ml TGF-β3 and the cell culture supernatant was collected at different time point (0.25,0.5,1,2,4,8 and 13 h).The content TGF-β3 was determined by ELISA method.Some other HSC cells were seeded in 96-well plates and divided into 2 groups.One group of cells were cultured in the presence of exogenous TGF-β3 of different concentrations (0.001,0.005,0.02,0.08,0.32,1.25,5,20,100,500 ng/ml) for 24 hours and then the cell proliferation was detected; the other group of cells were treated with 5 ng/ml TGF-β3 for 24 and 48 hours.The cell proliferation was measured by MTT method.The HSC cell morphology of control group and TGF-β3 treated group was observed under inverted microscope. Results The endogenous TGF-β3 expression of HSC cells obviously increased after exogenous TGF β3 treated at 2 ng/ml and reached the peak at 3 hour [(0.845±0.028) ng/ml vs (0.026±0.021) ng/ml,F=210.168,P=0.00].Low concentrations of exogenous TGF-β3 did not affect the proliferation of HSC cells.Above 0.32 ng/ml,exogenous TGF-β3 could promote HSC proliferation.There was no dose-dependent relationship between HSC cell proliferation and the concentration of exogenous TGF-β3 (F=0.68,P=0.57).Under microscope,lhere was no significant difference in HSC cell morphology between control group and TGF-β3 treated group.Conclusions Exogenous TGF-β3 can promote the expression of endogenous TGF-β3 in HSC cells,and can promote HSC cell proliferation.There is no obvious effect of exogenous TGF-β3 on HSC morphology.

BACKGROUND: Posttraumatic stress disorder(PTSD) arises as a delayed and /or protracted response to a stressful event or situation of an exceptionally threatening or catastrophic nature. There have been reports about natural disasters causing PTSD, but there have been few reports about PTSDcaused by technological disasters. Our study investigated the mental status of those survivors after a serious explosion.OBJECTIVE: To investigate the characteristics and the factors of impact of PTSD caused by technological disasters.DESIGN: A case controlled study of the survivors of a momentous explosion.SETTING: A provincial mental health center.PARTICIPANTS: A serious explosion happened in Urumqi on September 8, 2000. Twenty-eight survivors(as the study group) who were still hospitalized for treatment 3 -5 months after the accident were involved in this study. And in the control group were 30 normal persons whose general demographic data were the same as those patients.METHODS: A psychiatrist told the subjects the following: The objective and meaning of the test, and explained the self-making questionnaire about their general condition, symptom checklist (SCL-90), self-rating anxiety scale (SAS), self-rating depression scale(SDS), cornell medical index(CMI), the questionnaire on dealing styles, the questionnaire on social support, and others-evaluating scale, incident effect scale(IES); a list of stress reaction symptoms.MAIN OUTCOME MEASURES:Main resulta:①Clinical feature of PTSD caused by the technological disaster.②the related factors to PTSD in the technologal disaster.Secondary results: Comparison of the results between the two groups in IES, CMI, SDS and SAS.RESULTS: A total of 22(79% ) survivors met the criteria as PTSD. There were significant differences in all the assessments(IES, CMI, SDS, SAS,SCL-90) between the study group and the control group (t =3.62-8.17, P ＜ 0.01 ) . The diagnosis of PTSD was positively correlated with the level of traumatic exposure( r = 0. 420, P ＜ 0. 05), and negatively correlated with the degree of satisfaction with the post-event solutions( r = 0. 420, P＜ 0.05), positively correlated with IES scoring and the level of heart pain ( r = 0. 389 - 0. 665, P ＜ 0. 01 ) . The total scores of IES were positively correlated with the level of exposure ( r = 0. 478, P ＜ 0.05 ).CONCLUSION: The incidence of PTSD after explosion was high, and its occurrence was related with the degree of exposure in the event and that of the satisfaction with the post-event solutions.

The objective of this study was to assess the clinical evidence for or against mood stabilizers as a treatment for Alzheimer's disease (AD). We searched 5 databases from their inception to January 2010. Five randomized clinical trials of mood stabilizers to treat human patients suffering from AD were included. These trials assessed the effectiveness of mood stabilizers as an adjunct treatment to conventional anti-dementia drugs on behavioral and psychological symptoms, especially on agitation. Methodological quality was assessed using the Jadad score. The results suggested a significant effect in favor of placebo on the Mini-Mental Status Examination [n=270, weight mean difference (WMD), -0.89; 95% confidence intervals (CIs) -1.69 to -0.09, P=0.03] and on the Neuropsychiatric Inventory total (NPI total) (n=51, WMD, 3.71; 95% CIs 0.15 to 7.26, P=0.04). There were no significant differences in change scores on total Brief Psychiatric Rating Scale (BPRS total), NPI/BPRS agitation, Cohen-Mansfield Agitation Inventory total and Physical Self Maintenance Scale between mood stabilizers and placebo. Only one of these studies was free of methodological limitations (Jadad score=5). In conclusion, based on the existing evidence, mood stabilizers are ineffective or even harmful as a treatment for AD.

AIM To investigate the effects of trifluoperazine on naloxone precipitated withdrawal symptoms in morphine dependent rats and mice, and its pharmacological mechanisms. METHODS\ Naloxone precipitated tests in morphine dependent rats and mice were used. RESULTS\ Trifluoperazine(2～20 mg?kg -1 ) dose dependently inhibited naloxone precipitated withdrawal jumping, wet dog shakes, paw tremor and weight loss in morphine dependent mice. With ip trifluoperazine (5～20 mg?kg -1 ), most of positive withdrawal symptoms, including jumping, wet dog shakes, defeacation, weight loss, teeth chattering, salivation, diarrhea, ptosis and irritating, induced by naloxone in morphine dependent rats were significantly reduced. Apomorphine (2～8 mg?kg -1 ), a mixed DA 1/DA 2 receptor agonist, did not affect inhibition of trifluoperazine on naloxone precipitated withdrawal symptoms in morphine dependent mice. However, nifedipine(5～20 mg?kg -1 ), a L type voltage sensitive calcium channel blocker, enhanced a pharmacological action of trifluoperazine against naloxone precipitated symptoms in morphine dependent mice. CONCLUSION\ Trifluoperazine attenuates naloxone precipitated withdrawal symptoms in morphine dependent rats and mice by inhibiting the activity of post receptor calmodulin, but it does not antagonizes DA 2 receptor, in central nervous system.

Objective To evaluate the influence of duration of laser irradiation on histomorphometric meas- urements in experimentally tenotomized and repaired rabbit Achilles tendons and to explore the best irradiation time. Methods A total of 20 male New Zealand rabbits aged 10-12 weeks were used and randomly divided into 4 groups:a control group and three experimental groups.All the animals underwent surgical excised and then repair of their Achillis tendon.The animals in the control group were then treated with sham laser irradiation,while those in the three experimental groups were treated with 10,20 and 30 minutes of He-Ne laser irradiation(632.8 nm, 18.9 mW)daily,respectively,for 14 days.On the 28th day after surgical operation,the animals were sacrificed and their Achilles tendons were sampled.HE stain and Van Geison stain were used to observe morphometric changes of tendons.The SDS-PAGE electrophoresis method and CS-930 photodensity scan instrument were employed to measure the content of typesⅠandⅢcollagen.Results it was shown that laser irradiation enhanced cell proliferation,cel- lular content,granulation tissue formation and collagen deposition in laser-treated tendons,especially in those irradia- ted for 20 minute daily,as compared to the control group.TypeⅠand typeⅢcollagen levels were significantly in- creased at the 28th day in the healing tendons and the ratio of collagenⅢtoⅠincreased in all the 3 experimental groups,and the increase of both collagen content and ratio of collagen typeⅢtoⅠwas significantly greater in those ir- radiated 20 minutes daily(P

Objective To investigate the prognostic value of heart rate turbulence (HRT) in patients with chronic heart failure (CHF). Methods From October 2006 to May 2009, a total of 96 elderly CHF inpatients were selected, and the clinic data were recorded. Based on the echocardiogram and dynamic electrocardiogram, the differences of sinus HRT index of patients with different cardiac function classification were analyzed. During 9-28 months medical follow-up, the treatment endpoint was death from heart disease. Based on Logisitc regression, the prognostic values of HRT, age, hypertension, diabetes, myocardial infarction (MI), left ventricular ejection fraction, ACEI and β- adrenergic blocker for death of CHF patients were analyzed.Results There was no significant difference in HRT between grade Ⅱ and grade Ⅲ cardiac function (χ~2 = 1.60, P>0. 05), and between grade Ⅲ and grade Ⅳ cardiac function (χ~2 = 1.43, P>0. 05). But there was significant difference in HRT between grade Ⅱ and grade Ⅳ cardiac function patients χ~2 =9.84, P<0. 05), and HRT was weaken in grade Ⅳ group. The average follow-up time was (18. 0±9.6) months. Of all 96 patients, there were 34 dead of heart disease. There were correlations of death of CHF with HRT, low LVEF (≤ 45%), age (≥65 years), diabetes, MI and classification of heart function. Conclusions The sinus HRT in CHF patients has a favorable prognostic value.

Objective To investigate the influence of cognitive training on patients with Alzheimer's disease. Methods 30 patients received cognitive function training based upon drug treat-ment. Patients were assessed with mini- mental state examination (MMSE) and functional independence measure(FIM) before and after treatment, the results went through t test. Results After training, cog-nitive function and self- care ability after treatment greatly alleviated compared with those before train-ing. Conclusions Cognitive training can improve cognitive function and self- care ability of patients with Alzheimer's disease and facilitate their life quality.