2.Macrophage in tumor metastasis
Ru ZHOU ; Yiming ZHOU ; Zongyou CHEN
Journal of International Oncology 2011;38(5):338-342
There is persuasive clinical and experimental evidence that macrophages promote cancer initiation and malignant progression. The aggregation of macrophages indicates poor prognosis of tumor associated diseases. During tumor initiation, macrophages create an inflammatory environment that is mutagenic to cells and promotes cell growth; as tumors progressing, macrophages create premetastatic niche for the arriving tumor cells at premetastatic sites ; then macrophages provide critical nutrients for these initial metastatic tumor cells.Along with these great achievements in research of macrophage, it is believed that several novel directions of tumor therapy surely occur in the future.
3.The safety of surgical treatment and the feasibility of laparoscopic surgery for the elderly patients with gastric cancer
Ru ZHOU ; Yiming ZHOU ; Zongyou CHEN
Cancer Research and Clinic 2012;24(7):460-462,465
ObjectivesTo discuss the safety of surgical treatment and the feasibility of laparoscopic surgery for the elderly patients with gastric cancer. MethodsThe clinical and pathological materials of 104 elderly patients(65 years old or above) undergone surgical treatments retrospectively were analyzed,in order to analysis the postoperative complication incidence and the short-term outcomes in different age groups and different surgical pattern groups.ResultsThere were more preoperative comorbidities in ≥75 years old group than in <75 years old group(especially hypertension and diabetes),however,the incidence of postoperative complications was not significantly different.There was no difference of preoperative comorbidities, postoperative complications, surgical time or the amouts of blood loss during surgery between the laparoscopic and the traditional surgical groups,while the laparoscopic groups had short period of postoperative hospitalizing and earlier orally intake of fluid diet. There was also no difference of pathological results.ConclusionThe elderly patients with gastric cancer should have surgical treatments if the conditions are permitted, and the areas of dissection should be standard as far as possible. The old patient undergone laparoscopic surgery may have a shorter hospitalized period after operation, because their recovery of bowel function is more quickly.
4.Advances in research on oncolytic adenoviruses in tumor therapy.
Chinese Journal of Virology 2014;30(3):318-324
Oncolytic adenoviruses (Ads), which are live, replication-competent viruses that can selectively replicate in tumor cells and lead to cell lysis, have been used in tumor therapy. But due to the complexity and high mutability of human tumors, it becomes a major strategy to improve the selectivity, efficacy, and safety of oncolytic Ads. The oncolytic Ads that can express short hairpin RNA, cytokines, suicide gene, and matrix-modulating proteins have higher antitumor activity than the wild type. Tumor-specific promoters, especially hTERT and HRE promoters, increase the selectivity of oncolytic Ads for tumor cells. Moreover, oncolytic Ads surface-modified by polyethylene glycol (PEG), liposomes, biodegradable nanoparticles, and polypeptides have reduced immunogenicity and hepatotoxicity and improved antitumor activity when systemically administered, and the selectivity of oncolytic Ads can be significantly increased when linking PEG to antibodies, small peptides, cytokines, and ligands. Therefore, engineered oncolytic Ads combining the advantages of viral and non-viral vectors, as well as immunotherapy, are a promising strategy for improving the efficacy of targeted virotherapy.
Adenoviridae
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genetics
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physiology
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Animals
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Humans
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Neoplasms
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therapy
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virology
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Oncolytic Virotherapy
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trends
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Virus Replication
5.Clinicopathological characteristics of clear cell type meningioma.
Xiao LI ; Ru-jun XU ; Hong ZHOU
Chinese Journal of Oncology 2011;33(9):685-686
Adolescent
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Adult
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Aged
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Diagnosis, Differential
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Ependymoma
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pathology
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Female
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Follow-Up Studies
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Humans
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Immunohistochemistry
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Magnetic Resonance Imaging
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Male
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Meningeal Neoplasms
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diagnostic imaging
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metabolism
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pathology
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surgery
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Meningioma
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diagnostic imaging
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metabolism
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pathology
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surgery
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Mucin-1
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metabolism
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Oligodendroglioma
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pathology
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Tomography, X-Ray Computed
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Vimentin
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metabolism
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Young Adult
6. Effects of Liuwei Dihuang active fraction combination on learning and memory impairment of neuroinflammatory model mice induced by lipopolysaccharide
Journal of International Pharmaceutical Research 2019;46(5):363-370
Objective: To study the effect and action mechanism of Liuwei Dihuang(LW)active fraction combi- nation(LW-AFC)on learning and memory impairment of neuroinflammatory model induced by lipopolysaccharide(LPS). Methods: The C57 mice were randomly divided into control group, model group, positive drug group and test groups ac- cording to their autonomic activity and body mass. The mice in the test groups were orally given LW[1.17 g/(kg•d)]and LW-AFC[1.6 g/(kg•d)]for two weeks in advance. The spatial learning and memory ability of the mice in each group were evaluated by Morris water maze test;immunofluorescence was used to observe the activation of microglia in the brain;Luminex 200 was used to detect the level of inflammatory cytokines in peripheral blood and hippocampus. Results: LW-AFC could improve the spatial learning and memory impairment induced by a single intraperitoneal injection (ip)of LPS(P<0.05); the activation of glial cells in the brain was inhibited(P<0.01);the levels of IL-6 and MCP-1 in the hippocampus were reduced(P<0.05). Conclusion: LW-AFC could reduce the neuroinflammation caused by the activation of microglia in brain, but could not effectively ameliorate the spatial learning and memory impairment caused by the activation of microglia in hippocampus.
7.Study on drying process for Radix Tripterygii Wilfordii
Xushen WANG ; Liling ZHOU ; Ru LI
Chinese Traditional Patent Medicine 1992;0(04):-
Objective: To determine the condition of drying process for Radix Tripterygii Wilfordii extract. Methods: Under different dying temperature and time, both triptolide and triptophenolide extracted from extract of Radix Tripterygii Wilfordii were measured. Results: After Radix Tripterygii Wilfordi extract was dried for 48 hours at 80 ?C , loss of triptophenolide and triptolide was relatively low, but after dried more than 48 hours at 100 ?C , the content of triptophenolide and triptolide reduced by 15.0%~30.0%. Conclusion: Drying temperature for Radix Tripteryqii Wilfordii extract should be controlled under 80 ?C .
8.A study on the Transdermal Penetration of Artesunate from various EVA Membranes
Liling ZHOU ; Haixia HOU ; Ru LI
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(02):-
With transdermal absorption speed constant as index, the percutaneous osmosis experiments were carried out by orthodox design method to study the preparation process of EVA membrane.The results indicate that the best preparation process of EVA membrane is:10% EVA 36,dissolved by chloroform without the addition of plasticizer, expanding the membrane at the thickness of 0 5 ?m, dried at 80℃ for 6 hours. The membrane is with good releasing-control activity under the above condition.
9.Discussion on Laboratory Teaching of Medical Microbiology to Foreign Students
Chinese Journal of Medical Education Research 2002;0(01):-
In this paper,the teaching in medical microbiology experiment to the first group of foreign students in our college is analyzed and summarized,which will give us many experiences for later teachering.
10.STUDY OF GENES DIFFERENTIALLY EXPRESSED IN CD34~+ CELLS FROM G-CSF-MOBILIZED PERIPHERAL BLOOD AND BONE MARROW USING THE TECHNIQUE OF SUPPRESSION SUBTRACTIVE HYBRIDIZATION
Jie CHEN ; Shuyun ZHOU ; Ru FENG
Medical Journal of Chinese People's Liberation Army 2001;0(12):-
Our aim in this study was to determine differentially expressed genes of CD34 + cell from bone marrow and G CSF mobilized peripheral blood. CD34 + cells isolated from bone marrow and G CSF mobilized peripheral blood of the same donor were identified for differentially expressed genes in CD34 + cells using the technique of suppression subtractive hybridization. Eleven genes were expressed with higher levels in CD34 + cells from mobilized peripheral blood, as compared with data of GenBank. These genes included nuclear proteins, transcriptional regulatory molecules, zinc finger proteins and interferon induced molecules. These results demonstrate that there are some differences between the two groups of CD34 + cells. Further study would give us more extensive understanding about mobilization and homing of hematopoietic stem cells.