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Ninety nine patients with trigeminal neuralgia (TN,n =59) or hemifacial spasm (HFS,n =40) underwent microvascular decompression (MVD) treatment in our hospital from January 2012 to December 2015,and were followed up for more than 1 year.Total 94 patients (94.9％) were cured after the surgery,including 55 TN cases (93.2％) and 39 HFS cases (97.5％).The 1-year follow up showed that total 98 patients (99.0％) were cured,including 58 TN cases (98.3％) and 40 HFS cases (100.0％).Among the HFS cases,1 patient got gentle spasm,1 patient got hearing deficit,1 patient got light facial palsy after the operation,and all recovered completely during the follow-up.Among the TN cases,4 patients got pain attack infrequently after the operation,3 of them recovered during the follow-up,and the symptoms were satisfactorily controlled by taking carbamazepine in rest 1 case.No cases had cerebrospinal fluid leakage or intracerebral infection.The results indicate that MVD is an effective treatment of HFS and TN with less surgical injury or complications.
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Objective To investigate the relationship between expression of mucin1 (MUC1) and tumor invasion in pituitary adenomas.Methods The expression of MUC1 was detected by immunohistochemical analysis in 26 tissues of invasive pituitary adenoma and 29 of non-invasive pituitary adenoma.Results The expression of MUC1 in invasive pituitary adenomas tissues was 76.92 ％ (20/26).It was weakly positive or negative in non-invasive pituitary adenoma tissues,and the positive rate was 27.57 ％ (8/29).There was significant difference in two groups (x2 =13.35,P ＜ 0.01).The expression of MUC1 in functional pituitary adenomas was 44.82 ％ (13/35) and was 75.00 ％ (15/20) in non-functional pituitary adenomas.There were no significant difference in two groups (x2 =6.13,P ＞ 0.01).Conclusions Over-expression and aberrant localization of MUC1 in invasive pituitary adenoma may act as distinguishing diagnostic markers of invasive pituitary adenoma.MUC1 might be as the target of immunotherapy of invasive pituitary adenoma.
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Objective To investigate the expression of FRAT1 and β-catenin in human brain glioma,analyze the correlation between the expression and clinical pathological grades and the correlation of the two genes.Methods FRAT1 and β-catenin were detected by immunohistochemistry in 84 human brain glioma tissues and 6 human normal brain tissues.Results 66.7 ％ (56/84) and 77.4 ％ (65/84) of human brain glioma tissues expressed FRAT1 and β-catenin protein,whereas no FRAT1 and β-catenin protein expression was detected in human normal brain tissues.The expression levels of FRAT1 and ββ-catenin increased markedly with the ascending of pathologic grade of tumor specimens (r =0.55,P ＜ 0.01,r =0.70,P ＜ 0.01),there was a positive correlation between FRAT1 and β-catenin (r =0.77,P ＜ 0.01).Conclusion FRAT1 and β-catenin over-expression maybe closely related with occurrence and development of human brain gliomas.The results provide important supplements for the research of Wnt/β-catenin pathway.Meanwhile,FRAT1 may act as a valuable biomarker for molecular diagnosis of glioma and a potential target for gene therapy of glioma.
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ObjectiveTo study the methods of how to protect facial nerve function following complete resection of acoustic neurinomas and the value of the techniques of F wave assisted electrophysiological monitoring intraoperatively.Methods Retrospectivelysummarizing theresultsof combining three electrophysiological monitoring techniques such as nasal muscle F wave recording,online EMG and triggered EMG to monitor 46 cases of microoperations for acoustic neurinomas intraoperatively during the period of Feb.2004 to Dec. 2008. Correlating every intraoperative monitoring index with their follow-up results of facial nerve function 1 day and 6 months after their operations.The tendency of the two continuous monitoring techniques between nasal F wave recording and online EMG of facial muscles has also been studied in this paper. Results Among 46 cases of acoustic neurinomas, 45(97.83 %) tumors have been totally resected, and 1 (2.17 %) tumor subtotally resected,lcase (2.17 %)died after operation,and 2ases occurred the leakage of cerebrospinal fluid(CSF) which have been cured through conservative treatment. The whole anatomic protection rate of facial nerve is 97.83 %,and their functional protection rates 6 months after operation are:HB Ⅰ - Ⅱ,75.56 %;Ⅲ-Ⅳ,22.22 % and Ⅴ-Ⅵ,2.22 %.The completely accordant rate between the intraoperative findings of nasal F wave recording and online EMG is 52.17 %, partially accordant rate is 45.65 %, and totally opposite rate is 2.17 % (x2 趋势= 6.113, P ＜0.05). The intraoperative monitoring indexes in nasal muscle F wave recording are correlated well with the facial nerve function in the 6th month' s follow-up (κ=0.429, P ＜0.001).In triggered EMG monitoring after tumors being resected,the stimulus threshold ratio and maximum amplitude ratio of facial nerve between leaving brain stem part and inner acoustic porus part are also correlated well with the facial nerve function 6 months after operation(κ=0.576, P ＜0.001; κ=0.595, P ＜0.001). ConclusionNasal muscle F wa recording cooperated well with online EMG and triggered EMG intraoperatively and correlates well with the postoperative facial nerve function, so they should be routinely applied together intraoperatively.
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Objective To study the preventive effects of nerve growth factor(NGF)on basal forebrain neurons to explore the therapy for Alzheimer disease.Methods Six aged Rhesus monkeys were divided into two groups(group A and group B)randomly.NGF transport from cerebral cortex were blocked in all the monkeys.Group A received homopleural intraventricular implants of polymer-encapsulated cells that were modified to secrete NGF.Group B received identical implants of empty capsules.Results Three to four weeks after operation,the monkeys in the group B displayed extensive reductions in the number of p75NGFr receptor immunoreactive neurons(53%)and choline acetyltransferase immunoreactive neurons (57%to 75%)within the septum.The monkeys in group A appeared to be normal size telative to the atrophic appearance of cholinergic neurons and p75NGFr receptor imrnunoreactive neurons in the monkeys receiving control implants.Conclusion NGF could prevent basal forebrain neuron degeneration in aged monkeys.