1.Research on competency building standards of institutions of schistosomia-sis prevention and control in Hubei Province I Investigation of institution man-agement
Hancheng LIU ; Chenhui ZHONG ; Siqi LIAO ; Hui HE
Chinese Journal of Schistosomiasis Control 2014;(4):439-441
Objective To investigate the current situation of management of institutions of schistosomiasis prevention and control in Hubei Province so as to explore the probable competency building standards for these institutions at the county and township levels. Methods By using a combination of quantitative and qualitative methods the institutions of schistosomiasis prevention and control at county and township levels were investigated for the institutional setup staffing and fulfillment func-tions since the reform of 2004. Results Among 63 schistosomiasis endemic counties cities districts of Hubei Province there were 26 independent schistosomiasis control institutions 41.27% there were 24 institutions which were incorporated in-to CDC 38.10% and there were no institutions in 13 counties 20.63% . Among 518 endemic towns there were 299 institu-tions 57.72% . The total staffing size were 1 932 but there were 1 586 82.09% people actually working in the post and therefore there were 346 17.91% empty positions. The average rates of carrying out the six functions were 91.48%-71.19%but only 19.23%of the institutions participated in the comprehensive schistosomiasis control management project and its effect assessment. Conclusion According to the management model for schistosomiasis control institutions under the current institu-tional mechanisms we need a rigorous industry standard to constrain guide and standardize the management and capacity-building of the institutions in different historical periods.
2.Research on competency building standards of institutions of schistosomia-sis prevention and control in Hubei Province II Investigation of human resources
Hancheng LIU ; Siqi LIAO ; Chenhui ZHONG ; Hui HE
Chinese Journal of Schistosomiasis Control 2014;(6):681-683
Objective To understand the human resources of the grassroots institutions of schistosomiasis control and pre?vention so as to provide the evidence for formulating the standards of institutional capacity?building. Methods By using the combination of quantitative and qualitative methods the hierarchy of schistosomiasis control institution workers structural fea?tures of workers and benefits of workers were investigated and the results were analyzed statistically after the 2004 reform. Re?sults The constituent ratios of personnel≤30 years old 30 to 45 years old and≥45 years old were 6.8% 64.0%and 29.2%respectively with an average age of 43.1 years. For education levels 61.35%of the personnel had secondary or high school lev?els. At the city level the structural proportion of the senior professional medium professional and primary professional titles was 1.4∶5.6∶3.0 and at the county level the proportion was 0.5∶6.1∶3.4. There was 14 200 yuan per capita at the township schistosomiasis control institutions. Conclusion The technology of the personnel in schistosomiasis institutions of Hubei Prov?ince is weak the average age of personnel is old and the salary is low.
3. Investigation of neck and shoulder pain among workers in an automobile plant
Shuai WANG ; Haoran LIAO ; Dongming WANG ; Siqi CHEN ; Yong YAO ; Zhenlong CHEN ; Guilin YI ; Lei WU
Chinese Journal of Industrial Hygiene and Occupational Diseases 2018;36(10):764-767
Objective:
To investigate the prevalence and risk factors of neck and shoulder pain (NSP) among automobile manufacturing workers and to provide a theoretical basis for prevention of NSP.
Methods:
From November 5 to November 19, 2017, a total 446 works who had worked for more than one year were recruited from an automobile plant by cluster sampling method. Chi square test and unconditional logistic regression were used to exam the relation between influencing factors and NSP.
Results:
The annual prevalence rate of NSP was 34.8%. Multifactor regression analysis showed that age、work fatigue、department staff shortages、lifting heavy objects in awkward positions、neck flexion foreword and prolong sitting position work were the risk factors of NSP (
4.Sustained release of alginate hydrogel containing antimicrobial peptide Chol-37(F34-R) in vitro and its effect on wound healing in murine model of Pseudomonas aeruginosa infection
Shuaibing SHI ; Hefan DONG ; Xiaoyou CHEN ; Siqi XU ; Yue SONG ; Meiting LI ; Zhiling YAN ; Xiaoli WANG ; Mingfu NIU ; Min ZHANG ; Chengshui LIAO
Journal of Veterinary Science 2023;24(3):e44-
Background:
Antibiotic resistance is a significant public health concern around the globe.Antimicrobial peptides exhibit broad-spectrum and efficient antibacterial activity with an added advantage of low drug resistance. The higher water content and 3D network structure of the hydrogels are beneficial for maintaining antimicrobial peptide activity and help to prevent degradation. The antimicrobial peptide released from hydrogels also hasten the local wound healing by promoting epithelial tissue regeneration and granulation tissue formation.
Objective:
This study aimed at developing sodium alginate based hydrogel loaded with a novel antimicrobial peptide Chol-37(F34-R) and to investigate the characteristics in vitro and in vivo as an alternative antibacterial wound dressing to treat infectious wounds.
Methods:
Hydrogels were developed and optimized by varying the concentrations of crosslinkers and subjected to various characterization tests like cross-sectional morphology, swelling index, percent water contents, water retention ratio, drug release and antibacterial activity in vitro, and Pseudomonas aeruginosa infected wound mice model in vivo.
Results:
The results indicated that the hydrogel C proved superior in terms of cross-sectional morphology having uniformly sized interconnected pores, a good swelling index, with the capacity to retain a higher quantity of water. Furthermore, the optimized hydrogel has been found to exert a significant antimicrobial activity against bacteria and was also found to prevent bacterial infiltration into the wound site due to forming an impermeable barrier between the wound bed and external environment. The optimized hydrogel was found to significantly hasten skin regeneration in animal models when compared to other treatments in addition to strong inhibitory effect on the release of pro-inflammatory cytokines (interleukin-1β and tumor necrosis factor-α).
Conclusions
Our results suggest that sodium alginate -based hydrogels loaded with Chol-37(F34-R) hold the potential to be used as an alternative to conventional antibiotics in treating infectious skin wounds.
5.Application prospect of computer vision technology assisted ultrasonography in diagnosis and treatment of liver diseases
Guoxu FANG ; Wenting XIE ; Kaizhi CHEN ; Siqi CHEN ; Minyong CHEN ; Xiangwen LIAO ; Lina TANG ; Jingfeng LIU
Chinese Journal of Digestive Surgery 2023;22(4):462-467
Ultrasound examination has the advantages of non-radiation, non-invasive, low cost and high efficiency, and is the most commonly used method of liver imaging examination. In recent years, the application of computer vision technology to the intelligent analysis of ultrasound images has become a research hotspot in the field of intelligent healthcare. Through large-scale data training, the intelligent analysis model of ultrasound omics based on machine learning algorithm can assist clinical diagnosis and therapy, and improve the efficiency and accuracy of diagnosis. Based on the literature, the authors summarize the application proprect of computer vision technology assisted ultrasonography in the evaluation of diffuse liver lesions, focal liver lesions, microvascular invasion of liver cancer, postoperative recurrence of liver cancer, and postoperative therapy response to trans-catheter arterial chemoembolization.
6. Investigation on the influencing factors of low back pain in automobile factory workers
Siqi CHEN ; Kehan DING ; Shuyi YE ; Shuai WANG ; Haoran LIAO ; Yong YAO ; Jichao LI ; Guilin YI ; Zhenlong CHEN ; Lei WU
China Occupational Medicine 2018;45(06):735-739
OBJECTIVE: To investigate the prevalence and influencing factors of low back pain in workers in automobile manufacturing plants. METHODS: A judgment sampling method was used to select 394 workers with working length ≥1 year in an automobile manufacturing plant as study subjects. A questionnaire survey was conducted to investigate the prevalence of low back pain in these workers using the Nordic Musculoskeletal Disorders Questionnaire. RESULTS: The prevalence of low back pain in these study subjects was 28. 9%( 114/394). The multivariate logistic regression analysis results showed that the relative risk ranked from high to low is as follow: uncomfortable working posture [Odds ratio( OR) =7. 31,95% confidence interval( 95% CI) = 2. 92-18. 28],feeling tired after work( OR = 5. 34,95% CI = 1. 22-23. 32],the commu time more than 30 minutes( OR = 2. 76,95% CI = 1. 38-5. 52),insufficient operating space( OR = 2. 22,95% CI = 1. 28-3. 83),hand or arm frequently used at work( OR = 2. 08,95% CI = 1. 14-3. 78) and age( OR = 2. 00,95% CI = 1. 19-3. 35),that were all risk factors of low back pain( P < 0. 05). CONCLUSION: The frequent use of hand or arm at work,insufficient operating space,uncomfortable working posture,feeling tired after work,and long commute time are the main influencing factors affecting the low back pain of automobile manufacturing workers.