1.Effect of comprehensive interventions on protective behaviors of sanitary workers against occupational exposure in hospitals
Modern Clinical Nursing 2015;(5):41-43,44
Objective To explore the effect of comprehensive interventions on protective behaviors of sanitary workers against occupational exposure in hospitals. Methods Comprehensive interventions were done in 50 sanitary workers in our hospital during September 2013 to September 2014, with the intervention contents including establishment of sanitary workers management system, education training, on-the-spot inspection, signature of duty informs, planning of occupational exposure prevention flow chart. The intervention lasted 12 months. Then the score on occupational exposure prevention knowledge and behaviors, the qualification rate of all indexes and all occupational harms in pre-intervention and post-intervention were compared. Result The score on occupational exposure preventive knowledge after intervention was significantly higher than that before intervention , the qualification rate after intervention was higher than that before intervention and the incurrence of occupational harms was significantly lower than that before intervention (P < 0.01). Conclusion Multiple measures including education, supervision, inspection, duty informing and flow chats can strengthen the awareness of preventing occupational exposure and lower the incidence of occupational harms among the sanitary workers.
2.Surgical treatment of anastomotic recurrence following resection of esophageal carcinoma
Mingyao CHEN ; Lingfang SHAO ; Yuhang CHEN
Chinese Journal of Thoracic and Cardiovascular Surgery 2001;17(2):77-78
Objective: To evaluate the experience of surgical treatment of anastomotic recurrence following resection of esophageal carcinoma. Methods: Reoperation was performed in 11 patients with anastomotic recurrence. The surgical procedure performed included cervical esophagocolostomy in 5, cervical esophagogastrostomy in 3, esophagocolostomy and esophagogastrostomy at the top of chest in 2, respectively, and thoracotomy in 1. Results: There was one operative death with mortality rate of 9.1%. The cause of death was respiratory failure. 1-, 3-and 5-year survival rates were 77.8% (7/9), 44.4% (4/9) and 22.2% (2/9), respectively. Conclusion: Reoperation is still effective for some patients with anastomotic recurrence. Early diagnosis and prompt surgical treatment can improve the outcome.
3.Manometric study of residual esophagus and stomach after subtotal esophageal resection and cervical gastroesophagostomy
Mingyao CHEN ; Lingfang SHAO ; Zongren GAO
Chinese Journal of Thoracic and Cardiovascular Surgery 2003;0(06):-
Objective To evaluate the function of residual esophagus and stomach after subtotal esophagectomy and cervical gastroesophagostomy for esophageal carcinoma. Methods Manometry was performed in 21 patients who underwent cervical anastomosis after subtotal esophageal resection. The data was compared with normal subjects. Results The mean value of pharyngeal resting pressure was (1.20?2.03) mmHg(1mmHg=0.133kPa), and that of contraction pressure was (72.37?16.95) mmHg. The resting pressure of upper esophageal sphincter (UES) was (28.20?15.60) mmHg, and closing pressure was (107.10?28.43) mmHg. The resting pressure of residual esophagus was (15.98?11.10) mmHg, and contraction pressure was (48.45?18.37) mmHg. The resting pressure of stomach was (3.53?3.30) mmHg. Incidence of primary wave of esophagus was (57.14?34.50)%. The resting pressure of residual esophagus was much higher than that of normal group (P
4.The molecular mechanisms underlying the inhibiting effects of lanthanum on lipopolysaccharide induced NF-κB activation
Lingfang YU ; Hongwei CHEN ; Yang WANG ; Yuanlei LOU ; Yingping YI ; Gangquan CHEN ; Fei GUO
Chinese Journal of Microbiology and Immunology 2011;31(12):1057-1062
ObjectiveTostudythemolecularmechanismoflanthanumonblocking lipopolysaccharide(LPS)-mediated activation of nuclear factor-kappaB (NF-κB)signaling in macrophages.MethodsThe RAW264.7 macrophages were cultured routinely and divided into 4 groups randomly:LaCl3 +LPS group,LPS group,LaCl3 group and control group.The nuclear translocation of p65 protein was detected by immunocytochemistry.Total,cytoplasmic and nuclear proteins were extracted respectively,and then the binding activity of p65 with the target gene was measured by ELISA.Western blot assays were also performed to detect the expression levels of the proteins,including nuclear p65,IκBα and IKK kinase,the phosphorylation status of IκBα and IKK kinase.ResultsLanthanum can block LPS-induced activation of p65 protein through various ways,such as inhibiting its nuclear translocation,reducing its expression in the nuclei and decreasing its binding activity with the target genes.Lanthanum inhibited the degradation of LPS-induced IκBα,but the phosphorylation of LPS-induced IKKβ can not be blocked by lanthanum,nor did the phosphorylation ability of p-IKKβ on IκBα.Conclusion Lanthanum inhibited the degradation of IκBα,nuclei translocation of p65 protein and its binding activity with the target genes,thereby inhibited LPS-induced NFκB activation,which might be one of the inhibition mechanisms of lanthanum on nuclear activation.
5.Effect of aerobic exercise on enteric nervous injury in rats exposed to malathion
Haishan LI ; Lingfang KONG ; Songtao WANG ; Erlei ZHANG ; Wenchao AI ; Wenping XIE ; Huiming CHEN
Chinese Journal of Pharmacology and Toxicology 2014;(2):238-242
OBJECTIVE To investigate the effects of aerobic exercise on enteric nervous injury in rats exposed to malathion.METHODS Adult male Wistar rats were treated with non-load swi mming every other day,three ti mes a week,each one hour,for six weeks.Before exercise,the rats were trea-ted with malathion 100 mg·kg -1·d -1 by oral gavage,six days a week,for six weeks.The activities of seru m acetylcholinesterase(AChE)and butyrocholinesterase(BuChE)were determined.In addition,the s mall intestinal propulsion indexes were measured.Also,the distribution of nerve plexus in ileu m was observed.The i mmunohistoche mical method was used to measure the levels of protein gene-related petide 9.5 (PGP9.5),substance P (SP),and vasoactive intestinal peptide (VIP).RESULTS Co m-pared with normal control,malathion exposure decreased the activities of seru m AChE and BuChE (P<0.01 ),increased the s mall intestinal propulsion indexes (P <0.05).In addition,the levels of PGP9.5 decreased (P<0.05).At the sa me ti me,the levels of SP increased,and the levels of VIP decreased (P<0.05).Aerobic exercise did not change the activites of cholinesterases,but decreased s mall intes-tinal propulsion indexes,increased the levels of PGP9.5,decreased the levels of SP,and increased the levels of VIP.Co mpared with the malathion exposure only,the rats in malathion ad ministration co mbined with aerobic exercise group de monstrated much lower activites of cholinesterase (P <0.01 ),and the s mall intestinal propulsion indexes decreased fro m (89 ±4)% to (79 ±5)%(P <0.01 ).Moreover,the levels of PGP9.5 increased fro m 0.012 ±0.003 to 0.029 ±0.015 (P <0.01 ).At the sa me ti me,the levels of SP decreased fro m0.174 ±0.067 to 0.1 10 ±0.057(P<0.05),and the levels of VIP increased fro m 0.0076 ±0.0029 to 0.01 1 1 ±0.0047 (P <0.05).The levels of above para meters were sa me or close to those of the normal control.CONCLUSION Malathion exposure induced disorders of enteric nervous syste m in rats,and the aerobic exercise abated the toxic response in enteric nervous syste m of malathion exposure rats.However,these effects were not mediated through recovery of cholinesterases inhibition.
6.Effect of asbestos exposure on oxidative stress
XIA Hailing ; JIANG Zhaoqiang ; FENG Lingfang ; YU Min ; ZHANG Min ; CHEN Junqiang ; ZHANG Xing ; LOU Jianlin
Journal of Preventive Medicine 2022;34(1):1-6
Objective :
To examine the effect of asbestos exposure on oxidative stress, so as to provide insights into the elucidation of pathogenesis and management of asbestos-related diseases.
Methods :
Totally 245 subjects were recruited from an asbestos manufacturing area in Zhejiang Province, and their gender, age and history of asbestos exposure were collected through a questionnaire survey. The serum levels of 8-hydroxy-2'deoxyguanosine ( 8-OHdG ), glutathione ( GSH ), malondialdehyde ( MDA ), superoxide dismutase ( SOD ) and total antioxidative capacity ( TAOC ) were measured using an enzyme-linked immunosorbent assay ( ELISA ), and the levels of catalase ( CAT ), peroxiredoxin 2 ( PRX2 ), SOD1, SOD2 and thioredoxin-1 ( TRX1 ) were detected in peripheral white blood cells ( WBCs ) using a liquid-chip assay. Multivariable linear regression analysis was performed to identify the association between asbestos exposure and oxidative stress parameters.
Results :
There were 50 subjects without a history of asbestos exposure (unexposed group), 102 subjects with asbestos exposure for less than 10 years ( AE<10-year group ) and 93 subjects with asbestos exposure for 10 years and more ( AE≥10-year group ). No significant differences were found among the three groups in terms of age, gender, proportion of smokers or proportion of alcohol consumers ( P>0.05 ). Significantly higher 8-OHdG and MDA in serum, and higher PRX2 in peripheral WBCs were detected in the AE≥10-year group than in the unexposed group ( P<0.05 ); lower GSH and TAOC in serum, and lower CAT in peripheral WBCs were detected in the AE≥10-year group than in the unexposed group ( P<0.05 ); higher 8-OHdG and MDA in serum, and higher PRX2 in peripheral WBCs were detected in the AE≥10-year group than in the AE<10-year group ( P<0.05 ). Multivariable linear regression analysis showed that asbestos exposure significantly correlated with 8-OHdG, MDA and TAOC in serum, and CAT and PRX2 in peripheral WBCs ( P<0.05 ).
Conclusion
Asbestos exposure may induce the oxidative stress damage, suggesting that oxidative stress may be involved in asbestos-related diseases.
7.Survival analysis of 36 patients with malignant mesothelioma
SHEN Wei ; LIU Jiaqi ; CHEN Junfei ; YING Shibo ; XIA Hailing ; FENG Lingfang ; JIN Mingying ; JIANG Zhaoqiang
Journal of Preventive Medicine 2022;34(1):66-69
Objective :
To analyze the survival of patients with malignant mesothelioma, so as to provide insights into the management of malignant mesothelioma.
Methods :
Totally 36 patients with malignant mesothelioma admitted to Cixi Third People’s Hospital from October 2012 to January 2021 were enrolled, and the demographic features, exposure to asbestos, and diagnosis and treatment were retrospectively reviewed. The survival rate and median survival time were calculated with the life-table method, and the factors affecting the survival rate of malignant mesothelioma were identified using the Kaplan-Meier estimate and log-rank test.
Results :
The 36 patients with malignant mesothelioma included 6 men ( 16.67% ) and 30 women ( 83.33% ), and had a median age of 61 ( interquartile range, 14 ) years. There were 30 cases with pleural malignant mesothelioma ( 83.33% ) and 6 cases with peritoneal malignant mesothelioma ( 16.67% ), 32 cases ( 88.89% ) with a history of occupational exposure to asbestos, and 26 cases ( 72.22% ) receiving palliative treatment. The 1-, 2- and 3-year cumulative survival rates were 30%, 15% and 3%, respectively, and the median survival time was 0.71 years. In addition, there were no significant differences in the survival period among patients with malignant mesothelioma in terms of gender, age, route of asbestos exposure, duration of asbestos exposure, pathogenic site and treatment regimens ( P>0.05 ).
Conclusion
The 36 patients with malignant mesothelioma had a median survival period of 0.71 years, and no association was found between the survival period and asbestos exposure or pathogenic site.
8."Basic ideas and structure of health services industry development in ""the 13th five-year plan"" period in Shanghai"
Yimin ZHANG ; Chen FU ; Yanting LI ; Hong LIANG ; Lingfang WU ; Mingfei XU ; Jiquan LOU ; Shanshan LIU
Chinese Journal of Hospital Administration 2015;(10):791-795
On the basis of analysis of the current status and future tendency of development of the health services industry in Shanghai,the authors identified key problems and bottlenecks.Thus they made clear the target positioning and principles of the industry,and proposed the basic ideas and pattern of the industry in the 13 th five-year plan period,focusing on such fields as private and high-end healthcare services,traditional Chinese medicine services,public health services,commercial health insurance,and other related industries.In the end,corresponding supporting polices were proposed.
9.The Phytochemical and Pharmacological Progress on Comparisons Between Terminalia Chebula Retz. and Terminalia Chebula Retz. In Tibetan Medicine
Qi QI ; Yaping CUI ; Wenyi LIANG ; Wenjing CHEN ; Shi LI ; Lingfang WU ; Lanzhen ZHANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2016;18(7):1171-1176
Phyllanthus emblica L.and Terminalia chebula Retz.were the most common Tibetan medicines.The combination of Phyllanthus emblica L.,Terminalia chebula Retz.and Term inalia bellirica (Gaertn.) Roxb.was known as Triphala,which was the basis of the most frequently-used prescriptions.The present study summarized and made a further comparison between Phyllanthus emblica L.and Terminalia chebula Retz.over chemical constituents and pharmacological activities,which provided evidence for their clinical use and the basic theory.
10.Interpretation of Tibetan Medical Theory of Phyllanthus Emblica Based on Modern Pharmacological Researches
Wenyi LIANG ; Wenjing CHEN ; Lingfang WU ; Shi LI ; Yaping CUI ; Qi QI ; Lanzhen ZHANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2016;18(7):1166-1170
Phyllanthus emblica L.has a long history and is abundant in the world.It was used for treating various diseases in nearly twenty countries or nations in regard to traditional medicine system.By retrieving Tibetan medicine in classical books,recent literatures and clinical studies,the application of Phyllanthus emblica in traditional Tibetan medicine system was introduced,including its utilization in hypertension,indigestion,abdominal distension,cough and arthralgia and their related diseases.In the sight of modern pharmacological research,the theory Tibetan medicine of explained Phyllanthus emblica scientifically.Its related researches and development prospects were also deliberated for further researches and various applications,which demonstrated the value of the development of new drugs and health products.