OBJECTIVE To strengthen management of nosocomial infections in comprehensive intensive care unit so as to enhance medical treatment quality.METHODS Nosocomial infection administration department constituted the management institutions and standards of nosocomial infections with supervising,implementing targets monitoring.Comprehensive intensive care unit instituted several groups of nosocomial infection management and fulfiled the precautions and control measures.RESULTS By means of interventions and prophylaxes,the occurrence of nosocomial infection in comprehensive intensive care unit decreased.CONCLUSIONS It ensures for medical treatment quality and safe by strengthening the management of nosocomial infections.

Objective To study the molecular mechanism of glutamate receptor-6 (GluR6) in the pathogenesis of epilepsy. Methods Seizure model of SD rats was induced by intraperitoneal injection of kainate (KA). Immunoprecipitation and immunoblotting were performed to examine the interactions of GluR6 and MLK3 with PSD95 at various time points after KA injection. The effect of Tat-GluR6-9c on the MLK3 phospharylation induced by kainate was observed with immunoblotting and immunohistochemistry. Results The assembly of GluR6 and MLK3 with PSD95 was induced after KA hippocampal CA3 region, and bagan to decrease one day later. Pretreatment after KA injection in CA3 region (P<0.05). Conclusion KA induces the assembly of the GluR6-PSD95-MLK3 signaling module and subsequently activates MLK3, which ultimately results in brain injury.

AIM:To study the effect of human complement C 5b～9 complex on nitric oxide(NO) synthesis of glomerular mesangial cells (MC). METHODS: First, the human complement C 5b～9 complexes were isolated and glomerular MC of rats were cultured. Second, the MC were stimulated with C 5b～9 complex and changes of metabolism products of NO(NO 3 and NO 2) in MC culture supernatant at 6,24 and 48 hours after C 5b～9 stimulating were detected. Moreover, cGMP levels in cultured MC were also measured. RESULTS: NO 3/NO 2 contents from culture supernatant and cGMP levels in MC were increased parallelly after C 5b～9 complex stimulation. Further, NO synthesis was inhibited by L-NG-nitro-arginine-methylester(L-NAME). CONCLUSION: NO synthesis of rat glomerular MC was incerased by human complement C 5b～9 stimulation.

OBJECTIVETo investigate the risk factors for contact dermatitis in pig farm workers.

METHODSThe cross-sectional questionnaire survey and on-site survey were conducted in pig farms raising more than 50 pigs in a county of Fujian Province, China. The study subjects were grouped based on different factors. The incidence rate was compared between groups by statistical analysis.

RESULTSOf 302 subjects, 70 (23.18%) had contact dermatitis. There was a significant difference in the prevalence of contact dermatitis between the subjects in direct contact with commercially available pannage and those in indirect contact (χ(2) = 14.552, P < 0.01). Region, season, farm scale, brand of pannage, and allergic history were not influential factors for contact dermatitis (P > 0.05 for all).

CONCLUSIONDirect contact with commercially available pannage is closely associated with contact dermatitis in pig farm workers.

Adolescent ; Adult ; Aged ; Agriculture ; China ; epidemiology ; Cross-Sectional Studies ; Dermatitis, Contact ; epidemiology ; Dermatitis, Occupational ; epidemiology ; Female ; Humans ; Male ; Middle Aged ; Prevalence ; Risk Factors ; Surveys and Questionnaires ; Young Adult

Objective:To investigate the oncological efficacy and functional evaluation of total elbow arthroplasty (TEA) for the reconstruction of tumor around elbow joint.Methods:A retrospective case series study was made on the clinical data of 26 patients who underwent total elbow joint replacement after tumor resection in Beijing Jishuitan Hospital from June 1988 to June 2019. According to the inclusion and exclusion criteria, 23 patients were enrolled in the final study, there were 14 males and 9 females, the mean and median age was 37.6±19.9 and 35.0 years respectively. 23 patients included 3 cases of giant cell tumor, 4 cases of metastatic cancer, 4 cases of Ewing's sarcoma, 2 cases of osteosarcoma, 2 cases of aneurysmal bone cyst, 1 angiosarcoma, 1 primary malignacy in giant cell tumor, 1 low-grade central osteosarcoma, 1 parosteosarcoma, 1 synovial sarcoma, 1 plasma cell myeloma, 1 tendon sheath giant cell tumor and 1 case of mixed tumor. There were 6 cases of benign tumor, 4 cases of low grade sarcoma and 13 cases of high grade malignancy. With 19 cases of distal humerus, 3 cases of proximal ulna and 1 case of elbow. Each patient underwent tumor resection followed by restrictive tumor prosthesis and semi-restrictive of coonrad-morrey prosthesis were used for reconstruction.The duration of the operation, the amount of blood loss, epidemiological data, reconstruction length, oncology parameter, complications and functional evaluation were enrolled and statistical analyzed.Results:The mean length of the osteotomy followed by reconstruction was 12.5±3.9 cm, the mean operative time was 154.1±50.1 minutes, and the mean bleeding was 262.2±100.9 ml. Thirteen patients were treated with customized tumor limited prosthesis while 10 patients with Coonrad-Morrey semi-limited prosthesis. The 5-year survival rates of 23 patients was 64.3%, benign tumors, low-grade and high-grade malignancies were 100%, 100% and 39.7%, respectively. Three cases of lung cancer and three cases of Ewing's sarcoma died during the follow-up period (6/23, 26.1%), one case of giant cell tumor and one case of synovial sarcoma developed local recurrence (2/23, 8.7%). The median range of motion for the elbow increased from 35 to 85 degrees ( t=-13.787, P<0.05), the median NRS score decreased from 5.0 to 0.5 ( t=14.391, P<0.05). Postoperative complications occurred in 9 cases (9/23, 39.1%), the recent complications were nerve injury in 4 cases and infection in 1 case, late complications were prosthesis loosening and failure in 4 cases, the 5 year survival rate of prosthesis was 82.0%. The mean and median MSTS 93 score was 84.5%±11.0% and 88.3% respectively. Conclusion:The local control around the elbow is satisfactory after tumor resection. Total elbow arthroplasty can relieve pain and significantly improve function.

Purpose: C5α receptor 1 (C5ΑR1) is associated with the development of various human cancers. However, whether it is involved in the development of hepatitis B virus (HBV)–related hepatocellular carcinoma (HCC) is poorly understood. We explored the expression, biological role, and associated mechanisms of C5AR1 in HBV-related hepatoma cells. Materials and Methods: The expression of C5ΑR1 mediated by HBV and HBV core protein (HBc) was detected in hepatoma cells. The function of nuclear factor кB (NF-κB) pathway in HBc-induced C5AR1 expression was assessed. The roles of C5ΑR1 in the activation of intracellular signal pathways, the upregulation of inflammatory cytokines, and the growth and migration of hepatoma cells mediated by HBc, were investigated. The effect of C5α in the development of HCC mediated by C5AR1 was also measured. Results: C5ΑR1 expression was increased in HBV-positive hepatoma cells. Dependent on HBc, HBV enhanced the expression of C5ΑR1 at the mRNA and protein levels. Besides, HBc could promote C5ΑR1 expression via the NF-κB pathway. Based on the C5ΑR1, HBc facilitated the activation of JNK and ERK pathways and the expression and secretion of interleukin-6 in hepatoma cells. Furthermore, C5ΑR1 was responsible for enhancing the growth and migration of hepatoma cells mediated by HBc. Except these, C5α could promote the malignant development of HBc-positive HCC via C5AR1. Conclusion We provide new insight into the mechanisms of hepatocarcinogenesis mediated by HBc. C5ΑR1 has a significant role in the functional abnormality of hepatoma cells mediated by HBc, and might be utilized as a potential therapeutic target for HBV-related HCC.

Purpose: C5α receptor 1 (C5ΑR1) is associated with the development of various human cancers. However, whether it is involved in the development of hepatitis B virus (HBV)–related hepatocellular carcinoma (HCC) is poorly understood. We explored the expression, biological role, and associated mechanisms of C5AR1 in HBV-related hepatoma cells. Materials and Methods: The expression of C5ΑR1 mediated by HBV and HBV core protein (HBc) was detected in hepatoma cells. The function of nuclear factor кB (NF-κB) pathway in HBc-induced C5AR1 expression was assessed. The roles of C5ΑR1 in the activation of intracellular signal pathways, the upregulation of inflammatory cytokines, and the growth and migration of hepatoma cells mediated by HBc, were investigated. The effect of C5α in the development of HCC mediated by C5AR1 was also measured. Results: C5ΑR1 expression was increased in HBV-positive hepatoma cells. Dependent on HBc, HBV enhanced the expression of C5ΑR1 at the mRNA and protein levels. Besides, HBc could promote C5ΑR1 expression via the NF-κB pathway. Based on the C5ΑR1, HBc facilitated the activation of JNK and ERK pathways and the expression and secretion of interleukin-6 in hepatoma cells. Furthermore, C5ΑR1 was responsible for enhancing the growth and migration of hepatoma cells mediated by HBc. Except these, C5α could promote the malignant development of HBc-positive HCC via C5AR1. Conclusion We provide new insight into the mechanisms of hepatocarcinogenesis mediated by HBc. C5ΑR1 has a significant role in the functional abnormality of hepatoma cells mediated by HBc, and might be utilized as a potential therapeutic target for HBV-related HCC.