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.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
5.Analysis on key words of domestic geriatrics literatures from 2009 to 2013
Xiao TAN ; Chunbo DUAN ; Chengran GUO ; Baiyu ZHOU ; Pulin YU
Chinese Journal of Geriatrics 2014;33(6):676-679
Objective To understand the research status and development tendency of domestic geriatrics.Methods To analyze all the key words in the academic articles from five representative Chinese journals of geriatrics from 2009 to 2013 through key words frequency analysis.Results From 2009 to 2013,the 55212 key words in 15314 articles were analyzed.The percentages of the articles indexing 3,4 and 5 keywords were 39.3% (6012/15314),33.3% (5092/15314) and 13.9%(2123/15314),respectively.There were 45 high-frequency keywords,among which 17 key words (37.8%) were in the top 30 every year.The main research object of geriatrics was Aged,the main research contents were common diseases in the elderly,including Diabetes Mellitus,Coronary Artery Disease,Alzheimer's Disease,Hypertension,Cerebral Infarction,Cognition Disorders and etc.The Risk Factors,Therapeutics and Prognosis of these common diseases were always explored.Co-words analysis showed that there were 51 pairs of key words with a frequency more than or equal to 20.Conclusions The hot-spot of geriatric research in our country is relatively concentrated.We should pay attention to body disease,and focus on the mental health problems in the elderly.
6.Effect of frequency difference and intensity difference on mismatch negativity change in normal persons
Na ZHOU ; Mingli GUO ; Liming YU ; Qiuju WANG ; Mingquan WU
Chinese Archives of Otolaryngology-Head and Neck Surgery 2006;0(10):-
OBJECTIVE To study the effect of frequency difference and intensity difference on mismatch negativity (MMN) change in normal persons. Emphatically to observe the effect on the latency and amplitude of normal people's MMN, as well as the threshold of the acoustic difference which may induce the MMN. METHODS Twenty-four adults were included in this study. Their thresholds of pure tone audiometry were within 20dBHL. The MMN were measured by using the Smart EP ( ear potentiometer provided by the company of Intelligent Hearing) and the rule of the change by the difference of frequency and intensity to the latency and amplitude of normal people’s MMN were studied. RESULTS Along with the decreasing of the difference of the frequency, the MMN latency prolonged gradually. The amplitude of the MMN decreased gradually as the decreasing of the intensity difference. CONCLUSION A stable MMN graph is an important indicator of objective physiological test with hearing distinguish.
7.The Application of Transcranial Doppler in Stroke Thrombolytic Therapy
Shuang XUE ; Bao-Yu ZHOU ; Guo-Xiang WANG ;
International Journal of Cerebrovascular Diseases 2006;0(10):-
Transcranial Doppler can be used for diagnosing,monitoring,identifying the site of arterial occlusion,selecting appropriate cases for thrombolysis,and monitoring arterial recanalization during intravenous thrombolysis,and intra-arterial and intravenous thrombolysis with recombinant tissue plasminogen activator,The continuous monitoring of low frequency transcranial ultrasound has the effect of assisted thrombolysis;however,there are still controversies on the frequencies used in clinical practice.Transcranial Doppler assisted with microbubble contrast agent may further enhance the effect of thrombolysis.
8.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
10.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.