Objective To define the optimal process for spray drying of shengrnaisan prescription granule.Methods The optimal process for spray drying was investigate by single factor experiment.Results The optimal process for spray drying of shengmaisan prescription granule involved temperature of liquid feedstock of 30 ～ 40℃,relative density of extract of 1.10,the rate of liquid feedstock of 50 ～ 60 ml/min,inlet temperature of 175 ～ 180℃,and outlet temperature of 85 ～ 90℃.Conclusion The optimized process is rational and feasible.

Objective To transform hospital information service mode based on palm hospital based on WeChat.Methods Palm hospital based on WeChat was described from the aspects of background,execution and key points,whose effects and problems were analyzed.Results Palm hospital interfaced with hospital information system,changed the traditional medical service flow and doctor-patient communication,and posed a new mode for mobile medical service.Conclusion Palm hospital based on WeChat is one mode for embodiment of internet+ medical service,and may be of references and prospects for mobile medicine.

Objective To explorer the therapeutic effect of percutaneous vertebroplasty in the treatment of osteoporotic vertebral fracture.Methods Thirty patients with vertebral diseases were treated with percutaneous vertebroplasty;the therapeutic effects were analyzed statistically and retrospectively.Results The vertebral heights,Cobb angles and VAS scores were improved after operation,and 13 cases had marginal cement leakage; 30cases were followed-up for 2 to 24 months with an average of 8 months; patients with thoracolumbar lesions had obvious pain relief during follow-up.Conclu sions Percutaneous vertebroplasty has exact clinical curative effect in the treatment of elderly osteoporotic vertebral fracture.

Objective To observe the effect of three different methods for the treatment of osteoporotic vertebral compressive fractures on bone density.Methods Fifty-three patients with osteoporotic vertebral compressive fractures were retrospectively analyzed.These patients were divided into conservative treatment group,vertebroplasty(PVP)group and balloon kyphoplasty(PKP)group.Quantitative computed tomography measurement of bone density(L2-4)was performed before treatment,after treatment for 3 months,half a year,1 year,1 and half a year.Results Before and after treatment,no significant changes was found in bone density during follow-up in PVP group and PKP group.Bone density was decreased after treatment for 3 months compared with that before treatment,from(86.12 ± 8.21)mg/cm3 to (85.23 ± 8.31)mg/cm3 in PVP group,from(86.32 ± 8.38)mg/cm3 to(84.98 ± 8.26)mg/cm3 in PKP group,but there was no significant difference(P ＞ 0.05),bone density returned to pre-injury level after treatment for half a year.Bone loss was found significantly after treatment for 3 months and half a year follow-up in conservative treatment group,bone density decreased significantly[(74.42 ± 8.36),(76.10 ± 8.31)mg/cm3 vs.(86.87 ±8.27)mg/cm3],and there was significant difference(P ＜0.05),and there was no significant difference between after treatment for 1 year and before treatment(P＞ 0.05).Bone density after treatment for 3 months and half a year in PVP group and PKP group was higher than that in conservative treatment group [(85.23 ±8.31),(84.98 ± 8.26)mg/cm3 vs.(74.42 ± 8.36)mg/cm3 and(86.23 ± 8.05),(86.41 ± 8.17)mg/cm3 vs.(76.10 ± 8.31)mg/cm3],and there was significant difference(P＜ 0.05).There was no significant difference among three groups after treatment for 1 year and 1 and half a year(P ＞ 0.05).Conclusions PVP and PKP are positive treatment of osteoporotic vertebral compression fractures,which could reduce the loss of bone mass and do function exercise early.It could prevent brittle fracture and vertebral compression fracture further aggravated,which are a better clinical treatment methods.

The composition of S95-100 field mobile medical system was introduced, and some practices were summarized such as rational grouping, enhanced organization, proper allocation and etc. The problems of the system were analyzed from three aspects of the fixation of the internal devices, the rapid deployment in the plateau and maintenance in field conditions, and some measures were put forward to improve the medical support ability of the system in the plateau.

Objective To study the effects of social isolation (SI)on the spatial and nonspatial cognitive ability in mice.Methods The postnatal 21 day kunming mice were divided into control group,SI 2 weeks group,SI 4 weeks group,SI 8 weeks group and SI 2 weeks gregarious group according to randomized block design,with ten animals each.SI 2 weeks group,SI 4 weeks group and SI 8 weeks group were isolated for 2,4 and 8 weeks respectively,SI 2 weeks gregarious group would be housed under normal grouped housing condition after 2 weeks isolation until adult,the relative control groups were the same age as the relative SI and SI gregarious group.All animals were measured the spatial and nonspatial cognitive ability by carrying the object recognition test(ORT) and object location test (OLT) after the treatment.Results In the ORT,compared to the relative control group,the discrimination index in the SI 2 weeks group,SI 4 weeks group and SI 8 weeks group ( ( - 0.03 ± 0.003 ),( - 0.11 ±0.02) and( - 0.21 ± 0.02 ) respectively) were strikingly lower than the relative control group ( ( 0.29 ± 0.03 ),(0.13±0.07) and (0.09 ±0.03) respectively) (P＜0.05).In the OLT,compared to the relative control group,the discrimination index in the SI 2 weeks group,SI 4 weeks group and SI 8 weeks group( ( -0.15 ±0.02),( -0.30± 0.02),( - 0.32 ± 0.02 ) respectively ) were strikingly lower than the relative control group ( (0.33 ± 0.02 ),(0.41 ± 0.03 ),(0.27 ± 0.04)respectively)(P＜ 0.05 ),while the SI 2 weeks gregarious group with the resocialization to the normal housing condition showed no change.Conclusions 2 weeks,4 weeks and 8 weeks isolation on mice lead to the spatial and nonspatial cognition deficits,while the resocialization to the normal housing condition could recover the damage.

Objective To investigate the prevalence and related factors of musculoskeletal diseases in nurses by means of qualitative and quantitative research, and to have a discussion on the inner experiences of nurses. Methods 1 012 clinical nurses, from one hospital during March 2019 to May 2019, were selected as research objects by convenience sampling method. The Nordic musculoskeletal disease questionnaire was used for investigation,and SPSS 21.0 was used for statistical analysis. In the qualitative study,5 ICU nurses were selected by objective sampling method. Data were collected by semi-structured interview method,and analyzed by content analysis method. Results The annual prevalence rate of musculoskeletal diseases in clinical nurses was mainly in the neck (53.2%, 538/1 012), followed by the waist and back (48.5%, 491/1 012), hip and leg (45.2%, 457/1 012). Logistic regression analysis of neck related factors showed that BMI (P=0.039), repeated operation for one minute (P=0.007), and staff shortage in the Department (P=0.027) were the influencing factors of musculoskeletal diseases. Qualitative research extracted the following two themes:negative psychological experience of nurses under high workload and positive psychological experience of nurses. Conclusion The prevalence of neck is the highest among those of other musculoskeletal diseases in clinical nurses, which is related to many related factors. In the professional environment of nurses, nurses have high self-protection willingness and ability. It is suggested to strengthen support from hospital, family and other aspects, reduce the prevalence rate, and improve the quality of work and family life of nurses.

Objective To systematically review the influencing factors of non-specific low-back pain among nurses in China. Methods The formal and published articles were retrieved based on the search terms of nurses, low-back pain and factors in Chinese National Knowledge Infrastructure (CNKI), WanFang data, VIP, China Biology Medicine Database, PubMed, Web of Science and Cochrane Library, and with the methods of "snowball" and manual searching from 31st January 2004 to 30th April 2019. RevMan 5.3 was used to meta-analysis for included articles. Results This systematic review and Meta-analysis totally included 11 articles involving 11 097 nurses, and extracted 7 influencing factors of low-back pain with OR value ＞1. There were three factors related to low-back pain including advanced working ages (OR=2.09, 95% CI: 1.55-2.82), being married (OR=1.67, 95% CI: 1.11-2.50) and being on night shift in turn (OR=1.29, 95% CI: 1.14-1.46). There still lacked strong evidences in whether ages, positional titles, education levels and departments influenced low-back pain of nurses. Conclusions Main influencing factors of non-specific low-back pain among nurses in China are advanced working ages, being married and being on night shift in turn. There are no statistical differences in the influences of ages, positional titles, education levels and departments on low-back pain of nurses. Intervention should be conducted from aspects of nurses and hospital management.

Objective:To evaluate the MAPO index of work-related musculoskeletal disorders (WMSDs) among ward nurses who manually handled patients, and to explore the influencing factors of WMSDs in the workplace.Methods:From March to May 2019, convenience sampling method was used to select 317 nurses from 26 wards of a ClassⅢ Grade A hospital. The General Information Questionnaire, MAPO index assessment, and the meter ruler were used to comprehensively evaluate the situation of WMSDs in the workplace of nurses who manually handled patients inwards with the method of on-site investigation and measurement. According to the score of the MAPO index, there were 3 risk levels of wards, namely red light, yellow light, and green light. The yellow light meant that it was necessary to implement the medium-term and long-term intervention plan, and the red light meant that the short-term intervention plan must be implemented. Multivariate Logistic regression was used to analyze the influencing factors of WMSDs in nurses who manually handled patients in the ward.Results:A total of 317 questionnaires were distributed and 265 valid questionnaires were returned with an effective response rate of 83.6%. In the 265 ward nurses, there were 76.2% (202/265) of nurses with WMSDs. There were 13 (50.0%, 13/26) wards with red lights, including 158 (59.6%, 158/265) nurses, and 6 (23.1%, 6/26) wards with yellow lights, including 92 (34.7%, 92/265) nurses, and 7 (26.9%, 7/26) wards with green lights, including 15 (5.7%, 15/265) nurses. Multivariate Logistic regression analysis showed that MAPO index and the ward score were the influencing factors for the occurrence of WMSDs among ward nurses with statistical differences ( OR=1.056, 1.571; P<0.05) . Conclusions:The risk of WMSDs in the workplace of ward nurses is high. It is recommended starting with the types of beds, bed spacing, auxiliary equipment, nursing human resource allocation, and occupational protection training to reduce the occurrence of WMSDs in nurses.

Objective:To explore the effects of Baduanjin combined with resistance exercise in rural elderly.Methods:From May to September 2020, totally 80 aged people from 2 villages in Hebei province were selected by convenient sampling. Patients from one village were randomly included into an intervention group ( n=40) , and patients from the other village were included into a control group ( n=40) . Patients in the control group took daily activities and exercise, and received only health education, while patients in the intervention group practiced Baduanjin combined with resistance exercise in addition to daily activities. The Chinese version of Fried Frailty Phenotype Assessment Components, Time Up and Go Test (TUGT) , Five-Times Sit-to-Stand Test (FTSST) , and Pittsburgh Sleep Quality Index (PSQI) were used to evaluate the frailty, balance ability, lower limb muscle strength, and sleep quality of the two groups of rural elderly before and after the intervention. In this study, totally 80 questionnaires were distributed, and 78 valid questionnaires were recovered, accounting for an effective recovery rate of 97.5%. Results:The Chinese version of Fried Frailty Phenotype Assessment Components and PSQI scores of the rural elderly in the intervention group after the intervention were lower than those in the control group and before the intervention, and the differences were statistically significant ( P<0.05) . The TUGT and FTSST time of the rural elderly in the intervention group after the intervention were shorter than those in the control group and before the intervention, and the differences were statistically significant ( P<0.01) . Conclusions:Baduanjin combined with resistance exercise can delay the debilitating state of rural elderly, improve their lower limb muscle strength, balance ability and sleep quality, and enrich their exercise methods.