1.Effect of clonidine on intraocular pressure and its central adrenergic mechanism
Xiaoou ZHOU ; Guangdi YU ; Shiyu GUO ;
Chinese Pharmacological Bulletin 1986;0(06):-
AIM To investigate the effect of clonidine on intraocular pressure(IOP) and the possible role in which ? adrenergic mechanism plays. METHODS The change on IOP was observed following clonidine administered via three different routes: (1)clonidine topically administered to eyes; (2)clonidine intracerebroventricularly injected (icv)or topically administered after yohimbine or prazosin icv; (3)microinjection of clonidine into locus coeruleus(LC). RESULTS Clonidine decreased IOP significantly, ? 2 adrenoceptor antagonist, but not ? 1 adrenoceptor antagonist, can reverse the decreasing effect on IOP caused by clonidine icv and administered topically. CONCLUSION Clonidine administered both topically or intracranially can decrease IOP;? 2 adrenoceptor in central nervous system is involved in this effect.
2.Angiogenesis after TACE and the corresponding countermeasure
Shanshan GUO ; Ling YU ; Weisheng ZHOU
Chinese Journal of Interventional Imaging and Therapy 2009;6(6):582-585
Transcatheter arterial chemoembolization (TACE) is the first choice of patients with hepatocellular carcinoma (HCC) missed opportunity of exairesis.Angiogenesis is one of the key factors that affect prospective efficacy.Counter-measures against angiogenesis mainly contain complete embolization of tumor blood supply and integration with angiogenesis inhibitors.The angiogenesis after TACE and the corresponding countermeasures were reviewed in this article.
3.Effect and its mechanism of cyclin dependent protein kinase inhibitor treatment on experimental herpes simplex encephalitis
Yu ZHOU ; Yuanjin GUO ; Yuanwu MEI
Journal of Clinical Neurology 1992;0(01):-
Objective To investigate the effect and its mechanism of cyclin dependent protein kinase inhibitor Olomoucine treatment on experimental herpes simplex encephalitis(HSE). Methods 45 mice were randomly assigned to HSV-1 sham-infected group (n=15), HSV-1 infected control group (n=15) and Olomoucine treated group (n=15). Flow cytometry was used to detect the expression of brain cells surface antigen CD11b. The reverse transcription polymerase chain reaction (RT-PCR) to detect the expression of tumor necrosis factor-? (TNF-?) and Interleukin-6 (IL-6). TUNEL method was adopted to detect neural cells apoptosis. Pathologic slices of brain tissues were used to identify tissue morphology differences. The survival rates were compared between the treatment groups Acyclovir (n=20) and Olomoucine (n=20) by the method of Kaplan-Meier 2 weeks after HSV-1 infection. Results After HSV-1 infection, the expression of brain tissue CD11b, TNF-?, IL-6 were significantly increased compared with sham-infected group (allP
4.Immune mechanisms of the active ingredients of Chinese medicinal herbs for chronic prostatitis.
Hao WANG ; Yu-chun ZHOU ; Jian-guo XUE
National Journal of Andrology 2016;22(1):63-66
Chronic prostatitis is a common male disease, and its pathogenesis is not yet clear. Most scholars believe that oxidative stress and immune imbalance are the keys to the occurrence and progression of chronic prostatitis. Currently immunotherapy of chronic prostatitis remains in the exploratory stage. This article relates the active ingredients of 5 Chinese medicinal herbs (total glucosides of paeony, tripterigium wilfordii polglycosidium, curcumin, geniposide, and quercetin) for the treatment of chronic prostatitis and their possible action mechanisms as follows: 1) inhibiting the immune response and activation and proliferation of T-cells, and adjusting the proportion of Th1/Th2 cells; 2) upregulating the expression of Treg and enhancing the patient's tolerability; 3) suppressing the activation of the NF-kB factor, reducing the release of iNOS, and further decreasing the release of NO, IL-2 and other inflammatory cytokines, which contribute to the suppression of the immune response; 4) inhibiting the production of such chemokines as MCP-1 and MIP-1α in order to reduce their induction of inflammatory response. Studies on the immune mechanisms of Chinese medicinal herbs in the treatment of chronic prostatitis are clinically valuable for the development of new drugs for this disease.
Chemokines
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immunology
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Cytokines
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immunology
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Drugs, Chinese Herbal
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pharmacology
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Humans
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Immune System
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drug effects
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Male
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NF-kappa B p50 Subunit
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metabolism
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Nitric Oxide Synthase Type II
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metabolism
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Plants, Medicinal
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Prostatitis
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drug therapy
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immunology
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T-Lymphocytes, Regulatory
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drug effects
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Th1-Th2 Balance
5.Methodology of DNA staining by Azure A.
Jian-yun ZHOU ; Song HE ; Lan YU ; Yan GUO
Chinese Journal of Pathology 2006;35(9):568-569
Azure Stains
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chemistry
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DNA, Neoplasm
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analysis
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chemistry
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Humans
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Rosaniline Dyes
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chemistry
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Staining and Labeling
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economics
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methods
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Stomach Neoplasms
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genetics
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pathology
6.Clinicopathologic characteristics and surgical treatment of obsolete Bennett fractures
Jian YU ; Jianning ZHAO ; Ting GUO ; Liwu ZHOU
Chinese Journal of Orthopaedic Trauma 2012;14(1):8-10
Objective To investigate clinicopathologic characteristics of obsolete Bennett fractures and their surgical treatment and prognosis. Methods From August 2008 to April 2010,13 patients with obsolete Bennett fracture were admitted to our department.They were 12 men and one woman,with an average age of 34.3 years (from 17 to 42 years).They had a fracture history of over 4 weeks to as long as 12 weeks (average,7.9 weeks).In all patients,after X-ray examinations,the radio-dorsal ligament complex of the first carpometacarpal joint was properly released,fracture gaps were cleared up,fracture fragments were anatomically reduced and fixed with a Kirschner wire,and at last the first metacarpal joint was fixed with the Kirschner wire crossing the joint Postoperatively all patients were immobilized with cast plaster for 4 weeks before the Kirschner wires acrross the joint were removed.Gradual rehabilitation was conducted.The X-rays were taken every month. Results The patients were followed for 6 to 24 months(average,14 months).The fractures healed in all the patients,with an average healing time of 3 months.No dislocation of the joints occurred.Injury to articular cartilage of the trapezium bone occurred in one patient,and no apparent pain was experienced in the other 12 patients.According to the Total Active Motion assessment,the thumb function was rated as excellent in 9 cases,good in 2,moderate in one and poor in one,with a good to excellent rate of 84.6%.Conclusions In obsolete Bennett fractures,the radio-dorsal ligament complex of the first carpometacarpal joint will have cicatricial contracture,preventing reduction of the fragments of the radio-dorsal joint.Therefore it is important to properly release the radio-dorsal ligament complex to achieve anatomical reduction of the radio-dorsal joint.An injury history of over 3 months and complicated injury to the trapezium bone cartilage may be significant factors affecting the prognosis of obsolete Bennett factures.
7.Clinical outcome of concurrent chemoradiotherapy with different radiation doses for esophageal carcinoma
Mingzhen ZHOU ; Yuanxiang YU ; Hong GUO ; Dongsheng LI
The Journal of Practical Medicine 2015;(6):940-943
Objective To evaluate and compare the clinical outcomes of concurrent chemoradiotherapy with different radiation doses for esophageal carcinoma. Methods 78 cases of esophageal carcinoma receiving primary definitive treatment in our department between May 1 , 2005 to June 31 2007 were analyzed retrospectively. The patients with esophageal carcinoma were divided into high- ( > 50 Gy, median dose of 64 Gy) and low-dose (50 Gy) groups according to their prescription doses (n = 35, 43, respectively). Chemotherapy regimen consisted of cisplatin (75 mg/m2, d1) and 5-FU (500 ~ 600 mg/m2, D2 ~ 5) starting at days 1, 28, 49 and 70 after the beginning of radiotherapy with 2 ~ 4 cycles. The two groups were compared in terms of the early treatment outcomes, the side effects and survival rates. Results The 1,3 and 5-year survival rates for the high and low dose groups were 71.4%, 34.3%, 25.7%and 76.7%, 41.9%, 30.2%, respectively. The median survival time was 19 and 22 months respectively without statistical difference. The high dose group was more likely to have higher incidence rate of grade Ⅲ to Ⅳ myelosuppression in spite of the statistical difference. The high dose group had significantly higher incidence of esophagitis than did the low dose group (P=0.040). Conclusion For esophageal carcinoma with only indications of concurrent chemoradiotherapy, te low dose radiation (50 Gy) has comparable outcomes and less side effects compared with the high dose radiation (>50 Gy).
8.Gene Diagnosis of Spinal Muscular Atrophy in Children
guo-an, LIANG ; bo-lin, ZHOU ; zhong-sheng, YU
Journal of Applied Clinical Pediatrics 2003;0(10):-
Objective To establish a gene diagnosis assay for spinal muscular atrophy(SMA) in children. Method Analysis of the survival motor neuron (SMN) gene in 19 SMA patients and in 21 normal controls were performed by using polymerase chain reaction - fragment length polymorphism (PCR - RFLP) method. Result Deletion of exon 7and 8 in SMNt gene were found in all 19 SMA patients, while no such changes were found in normal controls. Conclusion The SMNt gene exon 7 and 8 examine can be applied to SMA gene diagnosis, and the PCR- RFLP method have higher sensitivity and particularity to the SMA diagnosis.
9.Relationship between protein level and ? mRNA,? mRNA isoforms of glucocorticoid receptor and effect of intravenous injection of methylprednisolone effect in multiple sclerosis patients
Xueqiang HU ; Zhi-Yin LOU ; Guo-Yu ZHOU ;
Chinese Journal of Neurology 2005;0(09):-
Objective To investigate the expression of glucocorticoid receptor(GR), GR? mRNA and GR? mRNA in peripheral blood mononuclear cells(PBMC)of patients with multiple sclerosis(MS) and healthy controls and investigate the relationship between GR protein, GR? mRNA, GR? mRNA and intravenous injection methylprednisolone(IVMP)effect.Methods GR in PBMC was measured by radioligand assays in 20 patients with relapsing-remitting MS(RRMS), 6 with the second progressive MS (SPMS)and 26 healthy controls.Semi-quantitative reverse transcription-polymerase chain reaction (RT-PCR)was used to detect the expression of GR? mRNA and GR? mRNA in PBMC of patients with MS and healthy controls.The effect of IVMP was evaluated by the expanded disability status scale(EDSS). Results(1)Before IVMP, GR in PBMC of MS was significantly lower(RRMS:(3.8?0.2)?10~3 site/cell;SPMS:(1.6?0.2)?10~3 site/cell)than those of controls((4.2?0.8)?10~3 site/cell, P