1.Effects of indocyanine green angiography on electroretinogram
Juanmei MA ; Feng WEN ; Jiongji LIANG
Chinese Journal of Ocular Fundus Diseases 2000;0(04):-
0 05). Conclusion ICGA using the Topcon 50IA could be performed prior to the recording of the Ganzfeld ERG.
2.Analysis of the relevant factors of mechanism for telozolomide chemoresistance.
Zeng-feng SUN ; Feng GU ; Wen-liang LI
Chinese Journal of Oncology 2011;33(10):794-796
Antineoplastic Agents, Alkylating
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pharmacology
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Apoptosis
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drug effects
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Benzimidazoles
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pharmacology
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DNA Repair
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Dacarbazine
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analogs & derivatives
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pharmacology
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Drug Resistance, Neoplasm
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drug effects
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physiology
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Humans
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Membrane Proteins
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metabolism
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O(6)-Methylguanine-DNA Methyltransferase
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antagonists & inhibitors
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metabolism
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Poly(ADP-ribose) Polymerase Inhibitors
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Poly(ADP-ribose) Polymerases
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metabolism
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Proto-Oncogene Proteins
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metabolism
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Purines
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pharmacology
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Pyrimidines
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pharmacology
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Tumor Suppressor Protein p53
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metabolism
3.The study on induced expression of heat-shock protein(HSP)70s in lung carcinoma patients
Feng LIANG ; Jin-Ping ZHENG ; Wen-Liang MA ; Feng WANG ; Tang-Chun WU ;
Cancer Research and Clinic 2001;0(04):-
Objective To analyze the expression level of HSP72 and HSP73,the subtypes of HSP70, in peripheral blood lymphocytes from lung carcinoma patients on both basic and heat injury conditions,and to explore the significance of HSP70 in the development of lung cancer.Methods Lung cancer patients were selected'as experimental group,and the health people with similar age,gender,vocational history and inhabi- tation to the experimental group were chosen as control group.The blood lymphocytes from both groups were isolated,cultured and treated with heat injury at either 37℃or 42℃.The expressions of HSP72 and HSP73 in the isolated lymphocytes were determined by Flow Cytometry.Results There were much higher expressions of HSP72 and HSP73 in control group(21.97?2.40 vs 12.77?0.66)than which in experimental group(HSP72 19.0?2.12 vs HSP73 11.74?0.68,P
5.The association between rheumatoid arthritis and single nucleotide polymorphisms of peptidyiarginine deiminase 4 in Han population of Hebei province
Zhongjun FENG ; Shulan ZHANG ; Yun LIANG ; Haifeng WEN ; Yanli NIU
Chinese Journal of Rheumatology 2008;12(11):768-770
Objective To study the association of peptidylarginine deiminase 4 (PADI4) (padi4_94 and padi4_104) genetic single nucleotide polymorphism (SNP) and rheumatoid arthritis (RA) susceptibility in Han population of Hebei province. Methods This hospital-based case-control study included 115 RA patients and 106 healthy controls. All the individuals were recruited from Han Hebei residents and were randomly selected. The genotype and allele frequencies of PADI4 gene polymorphisms (padi4_94 and padi4_104) were analyzed by PCR-DNA sequencing method. Results The distribution of padi4_94 and padi4_104 genotypes between the two groups was not significantly deviated from that expected by Hardy-Weinberg equilibrium (P>0.05). The combined effect of padi4_94 and padi4_104 SNPs was analyzed and three haplotypos (AA, AG and GG) were found but without GA haplotype. The genotype and allele distribution of padi4_94 and padi4_104 in the patients with RA was not significantly different from that in healthy controls,and the analysis of haplotypes revealed that no haplotypes were risk factors for RA. Conclusion In Han population of Hebei province, the SNPs of PADI4 (padi4_94 or/and padi4_104) is no associated with RA susceptibility. Therefore, it should not be regarded as a genetic risk factor for RA.
6.Study on single nucleotide polymorphisms of padi4_94 gene in Chinese Han people of Hebei Province
Zhongjun FENG ; Yun LIANG ; Haifeng WEN ; Yanli NIU
Chinese Journal of Clinical Laboratory Science 2006;0(02):-
Objective To study the gene polymorphism at position padi4_94 in Chinese Han people of Hebei Province and the characters of distribution.Methods 106 healthy individuals and 115 rheumatoid arthritis patients in Hebei Province were randomly selected. Padi4_94 gene was screened by sequencing of the promotor. The correlations between the SNP site and anti-cyclic citrullinated peptide antibody (anti-CCP) was discussed.Results There were three genotypes: AA, AG and GG in Chinese Han people of Hebei Province. No significant differences of gene frequency and allele gene frequency were found between healthy individuals and RA patients, and no correlation between SNP and the production of anti-CCP.Conclusions Hebei Province The gene polymorphisms at position padi4_94 existed in Chinese Han people of Hebei Province,but possibly would not affect RA susceptibility and the production of anti-CCP.
7.Research progress of PDE4 in the central nervous system
Ruiting WEN ; Hanting ZHANG ; Wanyu FENG ; Jianhui LIANG
Chinese Pharmacological Bulletin 2014;(4):452-455,456
Phosphodiesterase-4 ( PDE4 ) has been one of the most popular drug targets during recent years due to its critical role in the control of intracellular cyclic adenosine monophos-phate ( cAMP ) concentration and downstream signal transduc-tion. PDE4 is widely distributed in the central nervous system ( CNS) with different expression levels of its four subtypes. Re-cent data indicate that altered PDE4 expression and/or activity is relevant to multiple CNS disorders, such as depression, memory deficiency, drug dependence, and neural lesion. Selective PDE4 inhibitors exhibit therapeutic effects on these disorders and might be a promising pharmacotherapy. The paper highlights recent re-search progress in the roles of PDE4 in CNS function, and dis-cusses the prospects of PDE4 as a novel therapeutic target for CNS disorders.
8.Relationship between vasculogenic mimicry and clinic pathological features in laryngeal carcinoma.
Yan FENG ; Binquan WANG ; Gang LIANG ; Shuxin WEN ; Ruifang SUN
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2015;29(23):2071-2075
OBJECTIVE:
To investigate the presence of vasculogenic mimicry in laryngeal squamous cell carcino- ma and explore its clinical significance.
METHOD:
The presence of vasculogenic mimicry and expression of endotheli- um-dependent vessel in 138 laryngeal squamous cell carcinomas cases were detected by the immunohistochemistry and tissue microarray. Metlab software was used to evaluate the relationship among vasculogenic mimicry, mi- crovessel density and clinic pathological parameters in laryngeal carcinoma.
RESULT:
We found vasculogenic mimicry in 32 (26.23%) of 122 laryngeal carcinoma samples. The mean of microvessel density is 12.61 per high-power field. The vasculogenic mimicry and expression of endothelium-dependent vessel were not significantly related to patient age or gender, tumor location, pathology grade, T stage or N stage (P > 0.05). However, the vasculo- genic mimicry and the mean of microvessel density were a little higher in patients older than 60, with poorly differ- entiated and patients with N₁₋₃ stage. Vasculogenic mimicry was positively correlatedwith microvessel density (r = 0.1927, P < 0.05).
CONCLUSION
Vasculogenic mimicry can occur in laryngeal carcinoma. Moreover, vasculogenic mimicry may be associated with recurrence and metastasis in laryngeal carcinoma.
Carcinoma, Squamous Cell
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pathology
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Endothelium, Vascular
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pathology
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Head and Neck Neoplasms
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pathology
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Humans
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Immunohistochemistry
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Laryngeal Neoplasms
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pathology
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Neoplasm Recurrence, Local
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Neovascularization, Pathologic
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Squamous Cell Carcinoma of Head and Neck
9.Diagnosis and Treatment of Acute Mesenteric Ischemia: 12 Cases Report
Wen-guo LIU ; Fei GAO ; Feng-liang ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2006;12(6):531-532
ObjectiveTo explore the diagnosis and treatment of acute mesenteric ischemia.MethodsClinical data of 12 cases with acute mesenteric ischemia diagnosed by both operation and pathology were analyzed retrospectively.ResultsThe cases were mainly aged patients accompanied by cardiovascular disease and easily developed to strangulative intestinal obstruction. The mortality rate of this disease was very high.ConclusionThe early diagnosis with suitable techniques and prompt treatment are the keys to the management of this disease.
10.Research Progress About Some Problems on Cordyceps militaris
Yan-Feng HAN ; Jian-Dong LIANG ; Wen DU ; Zong-Qi LIANG ;
Microbiology 2008;0(09):-
Cordyceps militaris is of significant economic value in medical care and food exploitation because of its many physiological activities. This paper reviews(1) the taxonomic position of its anamorph,(2) interesting culture ways,(3) strain degeneration and genetic variability,and(4) research progress in bioactive compounds and pharmacological functions.