Effect of mindfulness-based stress reduction on negative emotion and coping style of patients with newly diagnosed silicosis / 中国职业医学

OBJECTIVE: To investigate the effects of mindfulness-based stress reduction(MBSR) on anxiety, depression and coping style of patients with newly diagnosed silicosis. METHODS: A total of 156 cases of patients with newly diagnosed silicosis were randomly divided into the control group and the intervention group by convenient sampling method, with 78 cases in each group. Patients in the control group were given routine care only, patients in the intervention group received MBSR intervention for 8 weeks on the basis of routine care. The Self-Rating Anxiety Scale, Self-Rating Depression Scale and Medical Response Questionnaire investigated the scores of anxiety, depression and coping styles in the two groups before and after the intervention. RESULTS: Before intervention, there was no significant difference in the scores of anxiety, depression and each dimension of medical response such as facing, avoidance and resignation dimensions in the two groups(P>0.05). After intervention, the anxiety and depression scores of patients in the intervention group decreased [(54.9±3.8) vs(45.5±3.8) and(57.5±3.9) vs(48.7±3.3), respectively, P<0.01] compared with the control group. The facing dimension scores of medical response increased [(19.0±1.3) vs(21.8±1.2), P<0.01], and the scores of avoidance dimension and resignation dimension of medical response decreased [(13.0±2.9) vs(12.2±2.1) and(10.3±1.6) vs(8.0±1.5), respectively, P<0.05]. CONCLUSION: The MBSR training can improve the negative emotion such as anxiety and depression in patients with silicosis, and encourage them to cope with the disease in a positive way.

Effect of mindfulness-based stress reduction on surgical stress of bronchoalveolar lavage in patients with pneumoconiosis / 中国职业医学

OBJECTIVE: To evaluate the intervention effect of mindfulness-based stress reduction(MBSR) on surgical stress of bronchoalveolar lavage(BAL) in patients with pneumoconiosis. METHODS: A total of 102 patients with pneumoconiosis who undergoing selective BAL were randomly divided into control group and MBSR group with 51 cases in each group by a convenient sampling method. The patients in the control group received routine nursing, the MBSR group received 5 times of MBSR treatment. All patients were investigated using the Self-Rating Anxiety Scale(SAS), Self-Rating Depression Scale(SDS) and Chinese Version Perceived Stress Scale(CPSS) before the first BAL and after the last BAL. RESULTS: Before the first BAL, the scores of SAS, SDS and CPSS in these two groups were compared and showed no statistical significance(P>0.05). After the last BAL, the scores of SAS, SDS and CPSS were lower in the MBSR group than that of the control group and the same group before the first BAL(P<0.01).CONCLUSION: The MBSR could effectively reduce the pressure perception level of patients with pneumoconiosis who undergoing selective BAL, improve their anxiety and depression and promote the smooth implementation of BAL.

Rapid detection of Vibrio cholerae by loop mediated isothermal amplification (LAMP) method / 生物工程学报

Vibrio cholerae is an important foodborne pathogen, mainly causes acute intestinal infectious disease. The development of rapid method for detecting Vibrio cholerae is critical for early diagnosis of its infection. In this study, two pairs of specific primers were designed according to housekeeping gene mdh of Vibrio cholerae. Following optimization of the reaction, DNA loop-mediated isothermal amplification (LAMP) for rapidly detecting Vibrio cholerae was successfully established. The optimal reaction for the LAMP assay is 65 degrees C for 60 min, with detection limit for cultivated Vibrio cholerae of 25 CFU/mL and for its contaminated food of 32 CFU/g. The specificity of the assay was determined using thirty-three kinds of same species or closely related bacteria, only Vibrio cholerae strains were specifically amplified. In practice, 85 pieces of positive samples were detected from 1057 pieces of shrimps, crabs, oysters, meat and human diarrhea complex using the LAMP method, which accorded with the detection result by ISO TS 21872-1-2007. Thus, the LAMP assay established in this study is a sensitive, rapid and simple tool for detecting Vibrio cholerae and will facilitate the surveillance for its control.

Research about the antitumor function of atractylodes macrocephala koidz volatile oil / 肿瘤研究与临床

Objective To study the function of atractylodes macrocephala koidz volatile oil for transplanted tumor in animals. Methods The animal model of transplanted tumor-ECA was used. The anti-tumor function of atractylodes macrocephala koidz volatile oil was observed. Results Atractylodes macrocephala koidz volatile oil can suppress ECA when given at 100 mg/kg and 50 mg/kg doses into abdominal cavity. When a larger dose at 150 mg/kg was given, the life-span of mice can extended to 197 %. Conclusion Atractylodes macrocephala koidz volatile oil can suppress tumor effectively.