1.Clinical observation on 22 cases of acute paraquat poisoning.
Feng-ling ZHAO ; Jing WANG ; Wei GUO
Chinese Journal of Industrial Hygiene and Occupational Diseases 2009;27(1):56-57
Acute Disease
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Adult
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Female
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Herbicides
;
poisoning
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Humans
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Male
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Middle Aged
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Paraquat
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poisoning
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Retrospective Studies
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Young Adult
2.Secretory breast cancer in a 15-year-old boy: report of a case.
Yun DONG ; Ling-ling GUO ; Feng LIU ; Feng LI
Chinese Journal of Pathology 2013;42(11):768-769
Adenocarcinoma, Mucinous
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pathology
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Adenoma
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pathology
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Adolescent
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Breast Neoplasms, Male
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metabolism
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pathology
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secretion
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surgery
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Carcinoma
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metabolism
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pathology
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secretion
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surgery
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Diagnosis, Differential
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Humans
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Keratin-18
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metabolism
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Keratin-8
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metabolism
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Male
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Mastectomy, Modified Radical
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Proto-Oncogene Proteins c-kit
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metabolism
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S100 Proteins
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metabolism
3.China' s process and challenges in achieving the United Nations Millennium Development Goal 5
Xinglin FENG ; Qing YANG ; Ling XU ; Yan WANG ; Yan GUO
Journal of Peking University(Health Sciences) 2011;43(3):391-396
Objective:China was categorized as one of the 68 countdown countries to achieve the United Nations Millennium Development Goals (MDG) 5. This paper aimed to analyze the situation of maternal survival, and coverage of proven cost effective interventions in China, where specific attention was paid to disparities. Methods: National maternal and child mortality surveillance data were used to estimate maternal mortality ratio (MMR). Coverage for proven interventions was analyzed based on National Health Services Survey, where experts' consultations were made for complementation. Results: There had been a significant reduction of MMR in China, however great disparities existed, with rural Ⅱ to Ⅳ areas experiencing 2 to 5 times higher maternal mortality risks than urban areas and accounting for over 70% maternal mortality burdens. Postpartum hemorrhage, pregnancy associated hypertension, embolism and sepsis were the leading causes, and over 75% of the maternal mortality was caused by preventable or curable causes. Maternal health services utilization decreased in accordance with region' s development level. Socioeconomic factors like financial difficulties were the main obstacles hindering access of care.Even those who made deliveries in hospitals faced different probabilities in receiving qualified care according to their socioeconomic standings. Conclusion: China is on track to achieve MDG 5, however great disparities exist. It is necessary to specifically target rural types Ⅱ to Ⅳ areas. Major causes of maternal mortality which can be prevented or averted through the provision of essential obstetrical care. Yet as compared with maternity health needs, insufficient coverage of maternal and child health (MCH) care services and poor service quality are the leading predisposing factors contributing to maternal mortality in China.
4.Study of Diallyl trisulfide affection on human colonic carcinoma HT29 cells proliferation and its mechanisms
Xuping WANG ; Ling ZHAO ; Rong WANG ; Feng GUO
Chinese Journal of Current Advances in General Surgery 1999;0(04):-
Objective: To study the affection of Diallyl trisulfide on cultured human colon carcinoma cell line HT-29 and its mechanism. Methods: The viability of cells after various treatments were determined using the method of MTT. Flow cytometry were used to analyze the change of cell cycle and Bcl-2, Bax levels. Results: The proliferation of human colon carcinoma HT-29 cells were inhibited by Diallyl trisulfide. The inhibition was associated with dose and time dependence. Flow cytometry results showed that: 1) When cells were treated with Diallyl trisulfide at the concentration of 10 ?g/mL for 12 h and 24 h, the percentage of G0/G1 phase cells was decreased and that of G2/M phase cells was significantly increased compared with those in the control group.2) Diallyl trisulfide down regulated Bcl expression, while up-regulated bax expression. Conclusions: It was suggested that Diallyl trisulfide inhibited HT29 cell proliferation. And these were associated with arrest of cell cycles and down regulation of Bcl2/Bax ratio.
5.Results of electronic bronchoscopy for cooks with lung cancer.
Feng-Ling LI ; Jian-Zhang HU ; Guo-Qing ZHANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2007;25(1):44-45
Adenocarcinoma
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diagnosis
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pathology
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Adult
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Aged
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Bronchoscopy
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methods
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Cooking
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Humans
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Lung Neoplasms
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diagnosis
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pathology
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Male
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Middle Aged
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Occupational Exposure
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Retrospective Studies
7.Expression of cytokines Th1 and Th2 in patients with esophageal squamous cell carcinoma.
Peng-Cheng CHEN ; Jian-Guo FENG ; Yu-Tian LING
Chinese Journal of Oncology 2007;29(11):850-851
Adult
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Aged
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Aged, 80 and over
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Carcinoma, Squamous Cell
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immunology
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pathology
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Cytokines
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blood
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Esophageal Neoplasms
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immunology
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pathology
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Female
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Humans
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Interferon-gamma
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blood
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Interleukin-10
;
blood
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Interleukin-12
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blood
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Interleukin-4
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blood
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Interleukin-5
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blood
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Lymphatic Metastasis
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Male
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Middle Aged
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Th1 Cells
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immunology
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Th2 Cells
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immunology
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Tumor Necrosis Factor-alpha
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blood
8.Preparation of aliginic sodium diester liposome and measurement of its size distribution
Ji-Bo WANG ; Wang YUE ; Yan-Zeng SUN ; Ling-Ling ZHANG ; Guo-Feng LV ;
Chinese Journal of Marine Drugs 2000;0(06):-
Objective Aliginic sodium diester(ASD) liposome was prepared and its aggregation stability was evaluated.Methods ASD liposome was made by reverse phase evaporating method from egg yolk lecithin,compared with blank liposome,the size distributions and mean particle diameters of ASD liposome and blank liposome were measured respectively before and after 40 hours heating under 37℃.Results Under the condition of n(PC)∶n(CHOL) = 1∶1,the mean size diameter of ASD liposome was 4.24?m.The mean size diameter of ASD liposome changed only 0.26?m after cultivation,however,the value of blank liposome was 1.35?m.Conclusion ASD loaded in the liposome enhanced the physical stability of the liposome.
9.The effects of curcumin on selenic cataract in rats
Wan-guo, FENG ; Bo, FU ; Ling-ling, DU ; Wei-qi, GAO
Chinese Journal of Experimental Ophthalmology 2011;29(11):983-986
Background Curcumin can eliminate free radical arising in the system and superoxide anion and further inhibit lipid peroxidation.Researches proved that curcumin has resisting effect on oxidative damage of lens,but its effect on the formation of age-related cataract is under clear.Objective This study was to investigate the effect of curcumin on the cataract induced by sodium selenite.Methods Thirty healthy clean SD rats of 12-day-old were selected.All the rats were randomly divided into the normal control group,model group and curcumin group and ten rats for every group.The selenite cataract models were established in the rats of model group and curcumin group by the injection of sodium selenite subcutaneously.Meanwhile,0.005 % curcumin lavaged the rats in the curcumin group daily for two weeks.Lens of the rats were examined under the slit lamp at 4,7,10,14 days after injection in all groups,and the opacification of lens was graded based on the He' criteria.The lenses of rats were obtained at the end of experiment and then the level of superoxide dismutase (SOD),the activities of malondialdehyde (MDA) and glutathione peroxidase(GSH-Px) in rat lens were detected using biochemical assay method.The use of experimental animals followed the Regulations for the Administration of Affair Concerning Experimental Animals by State Science and Technology Commission.Results The lenses were transparent throughout the experimental duration in the blank control group.Compared with model group,the development of the Ⅲ,Ⅳ,Ⅴ grade of cataract was slow down in the curcumin group with the significant difference( P<0.05 ).The content of MDA,SOD and GSH-Px activity in lens appeared considerable differences among 3 groups ( MDA:F =215.42,P<0.01 ; SOD:F =46.83,P< 0.01 ; GSH-Px:F=44.29,P<0.01 ).The level of SOD was significantly reduced in the model group and the curcumin group compered with blank control group ( P < 0.05 ) and that in the curcumin group was higher than the model group ( P<0.05 ).The MDA level in the model group and the curcumin group was obviously rised in comparison with blank control group( P<0.05 ),but that in the curcumin group lowed in comparison to model group( P<0.05 ).GSH-Px activity in the curcumin group was significantly lower than that in blank control group and higher than that in the model group( P < 0.05 ).Conclusions The curcumin can effectively delay rather than the cataract formation induced by sodium selenite in SD rat by improved the resistance of oxidation in the lens.
10.Experimental study on changes of Th1/Th2 cytokines and its relationship with lipopolysaccharide in pretreatment of relieving nonalcoholic steatohepatitis
Jianhong GUO ; Dewu HAN ; Yanlin GUO ; Ruiling XU ; Feng WANG ; Ling LI ; Yuanchang ZHAO
Chinese Journal of Geriatrics 2011;30(1):50-53
Objective To investigate the changes of Th1/Th2 cytokines and its relationship with lipopolysaccharide (LPS) in pretreatment of relieving nonalcoholic steatohepatitis (NASH).Methods The 24 male Wistar rats were randomly divided into 3 groups: normal control group, liver injury group and LPS pretreatment group. The rats were given normal diet in normal control group,high-sucrose and high-fat diet both in liver injury group and in LPS pretreatment group, and the rats in LPS pretreatment group were given hypodermic injection of LPS 0. 5 mg/kg every other day. The level of plasma endotoxin (ET), activity of alanine aminotransferase (ALT), content of tumor necrosis factor-α (TNF-α) and interleukin-10 (IL-10) were determined. At the end of week 9, the rats were executed, and the liver tissue slices were prepared to investigate hepatic pathologic change by hematoxylin and eosin (HE) staining.Results The level of plasma ET was significantly higher in liver injury group than in normal control group. The level of plasma ALT and infiltrating lymphocytes in liver tissue were significantly lower in LPS pretreatment group than in liver injury group. The level of plasma TNF-α was significantly lower in LPS pretreatment group compared with liver injury group.In contrast, the level of plasma IL-10 was higher (P<0. 05). Histology with HE staining showed that hepatocyte steatosis was obviously relieved with smaller lipid droplet in LPS pretreatment group than in liver injury group. Conclusions LPS pretreatment can alleviate high-sucrose and high-fat induced NASH. The disequilibrium of Th1/Th2 cytokines may be an important part of mechanism.