1.CD4 and CD8 cells in gastric mucosa from AIDS patients with gastritis infected by Helicobacter pylori
Duoduo LI ; Liwei WANG ; Ye ZHENG ; Dong ZENG ; Shaoping HUANG ; Zhenyu FAN ; Yahong XU ; Jihua LU ; Keshan YIN ; Rong TANG ; Jie CAO ; Renfang ZHANG ; Yanling FENG ; Jilin CHENG
Chinese Journal of Microbiology and Immunology 2012;(11):949-952
Objective To investigate the relationship among Helicobacter pylori(H.pylori),CD4 positive cells and CD8 positive cells in gastric mucosa of the AIDS patients with gastritis.Methods Fiftyeight AIDS patients with upper abdominal pain were diagnosed with chronic gastritis through gastroscopy.The gastric biopsies from them were used for H.pylori detection with rapid urease test and Giemsa staining,pathology examination with HE staining,and immunohistochemistry analysis for CD4,CD8 positive cells in Gastric mucosa.And the application of flow cytometry was for the detection of peripheral blood CD4 and CD8 lymphocytes from the patients.Results H.pylori was positive in 26 cases,and negative was in 32 cases.CD8 cell expression in gastric mucosa of the AIDS patients with H.pylori positive was significantly higher than H.pylori negative patients(P<0.05).There is no difference CD4 cell expression in gastric mucosa between the AIDS patients with H.pylori positive and H.pylori negative patients.Moreover,CD8 positive lymphocytes in gastric mucosa of those patients with H.pyloriinfection were significantly stronger than the CD4 positive lymphocytes.However,the peripheral blood CD4 lymphocytes from the patients with H.pylori infection were more than those from H.pylorinegative patients significantly(P<0.05).Conclusion The expression level of CD8 cells in gastric mucosal tissues of AIDS patients with H.pylori infection were higher than those without H.pylori infection.The CD4 lymphocytes from the peripheral blood of the patients with H.pylori infection were more than those without H.pylori negative patients.
2.Investigation on status and influencing factors of early ambulation in patients with gastric cancer after operation
Xiaoli XING ; Xiuping ZHENG ; Shuxia ZHANG ; Yahong YIN
Chinese Journal of Modern Nursing 2016;22(29):4179-4182
Objective To evaluate the status and influencing factors of early ambulation in patients following postoperative gastric cancer, and provide evidence for making reasonable evaluated standard to patients.Methods Self-designed questionnaires were used to investigate the early ambulation of 108 patients following postoperative gastric cancer from June 2013 to August 2014. Results The mean time of first ambulation was(30.82±13.83)h in 108 patients, and the average distance was(13.14±14.68)meters. 51 cases completed the early ambulation and accounted for 47.2%. The results of logistic regression analysis showed that postoperative pain and postoperative fatigue could greatly affect early ambulation of patients following postoperative gastric cancer(P<0.05).Conclusions Postoperative pain intervention and postoperative fatigue management benefits to the early ambulation for patients following postoperative gastric cancer.
3.Application effect of assessment criteria in early ambulation of gastric cancer patients after surgery
Xiaoli XING ; Shuxia ZHANG ; Yahong YIN ; Xiuping ZHENG
Chinese Journal of Modern Nursing 2016;22(30):4344-4346,4347
Objective To explore the effect of assessment criteria in early ambulation of gastric cancer patients after surgery. Methods Totally 327 gastric cancer patients from January 2013 to March 2016 in our hospital were selected as the research object by convenience sampling method. All patients were randomly divided into the control group ( n=160) and the observation group ( n=167) by throwing a coin. Patients in the control group received routine nursing before surgery, while patients in the observation group were assessed by postoperative assessment criteria of early safety ambulation. The status of postoperative early ambulation and satisfaction degree were compared between two groups. Results In the observation group, the proportion of ambulation within 24 hours after surgery was 80.2%, and it was 46.9% in the control group (χ2=39.439,P<0.05). The satisfaction degree towards nursing work in the observation group was 95. 8%, and was significantly higher than that in the control group ( 81. 2%) . The situation of observation group with early ambulation is better than that of control group (χ2=9.115,P<0.05).Conclusions Assessment criteria of early ambulation for patients with postoperative gastric cancer is benefit for developing early postoperative ambulation and improving the satisfaction degree towards nursing.
4.Tryptophan 2,3-dioxygenase 2 controls M2 macrophages polarization to promote esophageal squamous cell carcinoma progression
Yumiao ZHAO ; Jiaxin SUN ; Yin LI ; Xiuman ZHOU ; Wenjie ZHAI ; Yahong WU ; Guanyu CHEN ; Shanshan GOU ; Xinghua SUI ; Wenshan ZHAO ; Lu QIU ; Yongjie YAO ; Yixuan SUN ; Chunxia CHEN ; Yuanming QI ; Yanfeng GAO
Acta Pharmaceutica Sinica B 2021;11(9):2835-2849
Tryptophan 2,3-dioxygnease 2 (TDO2) is specific for metabolizing tryptophan to kynurenine (KYN), which plays a critical role in mediating immune escape of cancer. Although accumulating evidence demonstrates that TDO2 overexpression is implicated in the development and progression of multiple cancers, its tumor-promoting role in esophageal squamous cell carcinoma (ESCC) remains unclear. Here, we observed that TDO2 was overexpressed in ESCC tissues and correlated significantly with lymph node metastasis, advanced clinical stage, and unfavorable prognosis. Functional experiments showed that TDO2 promoted tumor cell proliferation, migration, and colony formation, which could be prevented by inhibition of TDO2 and aryl hydrocarbon receptor (AHR). Further experimentation demonstrated that TDO2 could promote the tumor growth of KYSE150 tumor-bearing model, tumor burden of C57BL/6 mice with ESCC induced by 4-NQO, enhance the expression of phosphorylated AKT, with subsequent phosphorylation of GSK3