1.Advances in mechanism and therapy of cancer cachexia
Parenteral & Enteral Nutrition 1997;0(02):-
Cancer cachexia patients have severely metabolic disorders. The release of tumor specific cachectic factors and increased synthesis of cytokines will lead to reinforced catabolism、decreased anabolism and increased energy expenditure of the patients. Progressive depletion of host reserves of adipose tissue and protein will lead to decreasing organs function ,and ultimately the failure of the patients.By increasing understanding of the mechanisms involved in cancer cachexia process,the application of mechanism based anticachectic agents will make great improvements in the therapy of cancer cachexia.
2.Recent advance in regional portal hypertension
International Journal of Surgery 2011;38(10):704-706
In clinical practice,regional portal hypertension is infrequent,but it is the only type which could be cured of portal hypertension.Pancreatic diseases are the chief pathogeny of regional portal hypertension,and the obstruction of spleen vein is the basic reason.The common clinical manifestation is isolatism varicose veins of pylorus.The golden standard of its iconography diagnosis is DSA,and the treatment should follow the individual principle.The splenectomy is the basic measure for them who have UGIB or hypersplenism.This is a review about recent advance in regional portal hypertension of etiology and classification,pathology and physiology,clinical manifestation,diagnosis,radiographic examination,cure,and so on.
3.Human follicular dendritic cells increase HIV infection
Yongjun JIANG ; Hong SHANG ; Yanan WANG ;
Chinese Journal of Immunology 2000;0(08):-
Objective:Study on the possibility that human follicular dendritic cells(FDC) can increase HIV infection and to investigate the related mechanisms.Methods:Human FDC was isolated from tonsils and cultured with infected heterogenous pheripheral lymphocytes or cultured with infected hemogenous tonsilar T lymphocytes.HIV P24 antigen,HIV 1 env DNA and HIV 1 nef RNA were determined respectively with ELISA method,PCR or RT PCR method.Results:FDCs were cultured with infected heterogenous lymphocytes,the P24 antigen is 6 7 times higher than the control group(P
4.Endovascular stenting of carotid stenosis in patients at high surgical risk
Bin DU ; Weijian JIANG ; Yongjun WANG
Journal of Interventional Radiology 1994;0(04):-
Objective To evaluated the safety and complications of endovasdcular stenting for symptomatic carotid stenosis with surgical high risk.Methods A series of 11 vessels in 9 patients at surgical high risk were treated by endovascular stenting. The complications during the procedures and postoperative periods were analyzed within one to five months. Results All of the operations were successfully performed without any serious complications. During the follow up period (averaging 6 months), there were no complications of TIAs, stokes and restenoses.Conclusions The study suggests that endovascular stenting may be safe and effective for patients at surgical high risk, but further more study is needed.
5.Study of the intervention of ubiquitin-proteasome pathway on inflammation response in experimental cancer cachexia
Yongjun NAI ; Zhiwei JIANG ; Jieshou LI
Parenteral & Enteral Nutrition 2010;17(2):101-105
Objective: To investigate the effect of Bortezomib (an inhibitor of proteasome) on IL-6 synthesis and cachexia in colon 26 tumor bearing mice. Methods: Murine colon 26 adenocarcinoma cells were inoculated subcutaneously in male BALB/c mice to induce cachexia. Saline and three doses of Bortezomib (0.1, 0.5 and 1.0 mg/kg) were given intraperitoneally on day 6, 9, 12 and 15 after tumor inoculation and mice were sacrificed on day 16. Body weight, food intake and tumor volume were monitored daily. Serum levels of IL-6 and IL-10, tumor tissue levels of IL-6 and activity of NF-κB in tumor tissues were investigated in all animals. Results: By day 16, saline treated tumor-bearing mice showed significant body weight and carcass weight changes (P<0.01), gastrocnemius muscle wasting and epididymal fat depletion (P<0.01). Furthermore, Tumor-bearing caused a significant increase of IL-6 and IL-10 (P<0.01) in serum and IL-6 in tumor tissues. Administration of Bortezomib attenuated the wasting of carcass weight, gastrocnemius muscle and epididymal fat. Bortezomib dose dependently inhibited the NF-κB activation and IL-6 synthesis of the tumor cells, and the maximal inhibition was observed at the dose of 1.0 mg/kg (P<0.01). Bortezomib 0.5 mg/kg significantly inhibited the increase of serum IL-6 (P<0.01). Bortezomib showed significant anti-tumor effect, and tumor growth was significantly inhibited by Bortezomib with 0.5 and 1.0 mg/kg (P<0.01). Conclusion: Bortezomib can inhibit NF-κB activation, tissue wasting and cancer cachexia.
6.Cloning and Expression of Heat Shock Protein 60 Gene from Chlamydia trachomatis
Yuzhen LI ; Hong SHANG ; Zhengrong SUN ; Yongjun JIANG ;
Chinese Journal of Dermatology 1995;0(03):-
90%inasinglestep,andtheproteinyieldwas2.5mg/L.ConclusionPurifiedChsp60kDantigenisobtained,andtheantigenmightbeappliedtodetectantibodyinpatientsinfectedwithChlamydialtrachomatis,andwillcontributetostudytheroleofChsp60inimmunopathogenesis.
7.Effects of acupuncture on the ratio of CD4+ CD25+ regulatory T cells and expression of transcription factor Foxp3 in patients with septic shock
Youping JIN ; Liping JIANG ; Jing GUO ; Yongjun TAO ; Jianjun LIU
Chinese Journal of Primary Medicine and Pharmacy 2017;24(18):2784-2787
Objective To study the effect of acupuncture on the ratio of CD4+ CD25+ regulatory T cells and expression of transcription factor Foxp3 in patients with septic shock.Methods Sixty-four patients with septic shock were randomly divided into two groups by using the random number table method.Acupuncture group (34 cases) was treated with both western medicine and acupuncture,and control group(30 cases) was treated with western medicine.The period of treatment was 7 days.After treatment,the ratio of CD4+ CD25+ T cells in peripheral blood was determined by flow cytometry.And the expression of Foxp3 mRNA in peripheral blood was detected by quantitative real time PCR.Results After treating for 7 days,the ratios of CD4+ CD25+ Treg cells and CD4+ CD25+ Foxp3 + Treg cells were (20.23 ± 1.12) % and (78.70 ± 7.65) % respectively in peripheral blood of the control group,which in the acupuncture groupwere (17.32 ± 0.78) % and (68.53 ± 8.01) %,the differences were statistically significant between the two groups(t =2.587,2.749,all P < 0.05).The levels of Foxp3 mRNA in peripheral blood were (1.21 ±0.02) and (1.02 ± 0.04) in the control group and acupuncture group,the difference was statistically significant(t =2.119,P < 0.05).Conclusion Acupuncture can adjust immune status of patients with septic shock by reducing the ratio of CD4+ CD25+ Treg cells and down-regulating the expression of Foxp3 mRNA.
8.Obstructive jaundice internal and external biliary drainage' s effects on the levels of TNF-α, No and iNOS
Xiaojiang LUO ; Peijian ZHANG ; Yongjun JIANG ; Jiafeng ZHANG
International Journal of Surgery 2013;(2):92-94,封3
Objective To investigate the different effects of internal and external biliary drainage on the levels of TNF-α,NO in blood serum and NO,inducible nitric oxide synthase(iNOS) in gastric mucosa with obstructive jaundice and explore the mechanism of gastric mucosa damage and compare the quality of internal and external drainage.Methods To establish the animal model:one hundred male adult Sprague-Dawley rats were randomly assigned to five groups:obstructive jaundice for 7 days group (OJ-7 d group),obstructive jaundice for 14 days (OJ-14 d group),internal biliary drainage group(ID group),external drainage group(ED group)and sham operation group(SH group).The OJ-7 group rats were executed 7 days after the first operation,the rest four groups were executed 7 days after the secondary surgery,leaving serum and gastric mucosa.Tested the levels of INF-α,NO in blood serum and NO,iNOS in gastric mucosa and did pathological biopsy of gastric mucosa.Results The levels of TNF-α,NO in blood serum and NO,iNOS in gastric mucosa significantly increased in OJ-7 group.The levels of TNF-α,NO in blood serum and NO,iNOS in gastric mucosa continued to rise in OJ-14 group,and was significantly higher than OJ-7 group,the gastric mucosa was obviously impaired.The levels of TNF-α,Internal drainage can significantly NO in blood serum and NO,iNOS in gastric mucosa were significantly lower in ID group,gastric mucosal damage significantly reduced.Conclusions After internal drainage,iNOS expression was inhited in gastric mucosal,NO production was significantly reduced,led to protect the gastric mucosa,which provide experimental basis for choice in OJ clinical treatment.
10.Studies on activation,apoptosis and proliferation of NKT like cells in untreated HIV infected patients
Tingting LIU ; Xue ZHAO ; Zining ZHANG ; Yajing FU ; Yongjun JIANG
Chinese Journal of Immunology 2016;32(12):1797-1800
Objective:To study the changes of the NKT like cells after HIV infected. Methods:We collected peripheral blood from 47 untreated HIV infected individuals and 31 healthy controls,and analyzed the expression of Annexin-V,Ki-67,HLA-DR and other surface molecules in NKT like cells by flow cytometry. Results:The NKT like cell percentage of untreated HIV infected group was (3. 03±1. 61)%,the NKT like cell percentage of normal control group was (8. 30±7. 42)%,the percentage of NKT like cells in HIV infected individuals was significantly lower than the healthy controls ( P<0. 05 );the NKT like cell HLA-DR expression of untreated HIV infected group and normal control group were (5. 40±4. 10)% and (0. 89±0. 83)%,the NKT like cell Annexin-V expression of untreated HIV infected group and normal control group were (30. 21±13. 15)% and (5. 40±8. 05)% ,and the activation and apoptosis of NKT like cells was significantly higher after HIV infection compared with health individuals (P<0. 001,P<0. 01),the degree of activation was negatively correlated with CD4 count (r=-0. 885 7,P<0. 05);and the NKT like cell Ki-67 expression of untreated HIV infected group and normal control group were (11. 15±4. 76)% and (27. 63±18. 31)%,the proliferation ability was significantly lower after HIV infection compared with healthy controls(P<0. 05). Conclusion:HIV infection can significantly reduce the number of NKT like cells and its ability to proliferate,and increase its ability to activation and apoptosis.