面肌痉挛微血管减压术中异常肌反应变化特点与术后疗效关系探究

目的探究面肌痉挛患者微血管减压术(MVD)中异常肌反应(AMR)的变化特点与术后疗效的关系。方法回顾性分析73例MVD术中采用AMR全程定量化监测患者的AMR变化特点,减压操作前AMR阈值较基础阈值升高≥1倍为A1组、1倍为A2组,手术结束时AMR完全消失为B1组、未消失为B2组,B2组中AMR阈值较基础阈值升高≥1倍为B2a组、1倍为B2b组,对各组的术后疗效进行对比分析。结果 A1组21例中,19例立即治愈,1例延迟治愈,1例未愈; A2组52例中,35例立即治愈,9例延迟治愈,8例未愈。A1组较A2组疗效好(P=0. 046)。B1组50例中,42例立即治愈,5例延迟治愈,3例未愈; B2组23例中,12例立即治愈,5例延迟治愈,6例未愈。B1组较B2组疗效好(P=0. 003)。B2 a组的治愈比例较B2 b组高(分别为14/16、3/7),差异有统计学意义(P=0. 045)。结论 AMR在术中的变化特点对术者有重要参考意义,AMR在减压前升高、在手术结束时完全消失、未消失但升高较基础阈值≥1倍者术后疗效相对较好。     

冠心病患者血清对氧磷酶活性的测定

目的探讨冠心病患者血清对氧磷酶1活性及其与冠心病之间的关系。方法选择冠状动脉造影确诊的冠心病患者106例和非冠心病组62例,用乙酸苯酯法和比色法分别测定两组血脂、血清对氧磷酶1活性、超氧化物歧化酶及丙二醛含量,并进行对比分析。结果冠心病组血清中对氧磷酶1活性和超氧化物歧化酶水平分别为113±64μkat/L和43.8±8.2 kU/L,均较对照组降低(134±72μkat/L和63.4±5.7 kU/L)(P<0.05);而丙二醛含量较对照组升高(9.4±1.8μmol/L比4.1±0.5μmol/L,P<0.01)。对氧磷酶1活性与高密度脂蛋白和超氧化物歧化酶水平呈正相关,与丙二醛水平呈负相关。冠状动脉狭窄者对氧磷酶1活性较无狭窄者明显减低(P<0.001),2、3支血管病变者较1支血管病变者对氧磷酶1活性降低(P<0.05)。结论冠心病患者血清对氧磷酶1活性降低,低对氧磷酶1活性与冠心病严重程度有关。     

低分子量肝素化学及生物活性的不均一性

综述了低分子量肝素的化学和生物活性的不均一性,以及药理作用,药物动力学、临床应用等方面的差异。     

Impaired recognition of fear in a Chinese man with bilateral cingulate and unilateral amygdala damage

LJM, a 41-year-old schizophrenic Chinese man with bilateral anterior cingulate gyrus (Brodmann's area 24) lesions and also a small lesion in right amygdala after an operation, was compared with normal as well as brain-damaged and schizophrenic controls in identification of morphed facial expressions of six basic emotions. In repeated administrations of the test for recognition of facial emotions, over a 1- year period, LJM performed significantly worse for expressions of fear compared with the three groups of controls. Recognition of other emotions was not significantly different from that of the controls, except that his recognition of disgust during the first session (but not in two subsequent sessions) was worse than normal and brain-damaged controls but not worse than schizophrenic controls. The dissociation between recognition of fear and other emotions supported the view that the brain has separable networks for processing different emotions, and that the right amygdala as well as the anterior part of bilateral cingulate gyrus are possible substrates involved in the special network for perception of fear. The results from the various groups of Chinese subjects indicate that they perceive emotions in a categorical manner, and that the six basic emotions are likely to be cross-cultural universals.     

Trans-suppression of defense DEFB1 gene in intestinal epithelial cells following Cryptosporidium parvum infection is associated with host delivery of parasite Cdg7_FLc_1000 RNA

Parasitology Research - To counteract host immunity, Cryptosporidium parvum has evolved multiple strategies to suppress host antimicrobial defense. One such strategy is to reduce the production of...     

血管重建术治疗难治性颅内动脉瘤

对于需要闭塞载瘤动脉的难治性颅内动脉瘤,血管重建技术是解决脑血流代偿不足的良好方法.随着显微手术技术的发展,移植血管通畅率的不断提高,血管重建治疗难治性颅内动脉瘤的疗效也在不断提高.     

岭南地区结肠癌患者中医体质类型研究

【目的】探究岭南地区结肠癌患者中医体质类型分布特点,为中医临床对结肠癌的早期防治提供理论参考。【方法】采用王琦教授编制的"中医体质量表",对118例符合纳入标准的结肠癌患者进行中医体质判定,并对中医体质类型分布进行分析。【结果】(1)118例结肠癌患者中,平和质10例,占8.47%;偏颇体质108例,占91.53%。(2)根据体质出现的频次由高到低依次为:阳虚质87次(26.61%)、气虚质56次(17.13%)、湿热质45次(13.76%)、痰湿质39次(11.93%)、阴虚质35次(10.70%)、气郁质34次(10.40%)、瘀血质17次(5.20%)、平和质10次(3.06%)、特禀质4次(1.22%)。(3)不同性别结肠癌患者的中医体质类型分布情况比较,差异有统计学意义(P0.01),其中男性以阳虚质、湿热质、痰湿质为主,女性以阳虚质、气虚质、气郁质为主。【结论】岭南地区结肠癌的易感体质为阳虚质、气虚质、湿热质、气郁质,这可能与患者年龄、环境气候、饮食习惯有关。     

后巩膜加固术在超长眼轴黄斑裂孔性视网膜脱离手术中的应用

目的：评价后巩膜加固术(PSR)辅助超长眼轴黄斑裂孔性视网膜脱离患者玻璃体切除手术(PPV)的临床效果。

方法：采用临床随机对照研究。纳入眼轴≥29mm的超长眼轴黄斑裂孔性视网膜脱离患者46例46眼,随机分为两组：A组采用PSR+PPV+硅油填充,B组采用单纯PPV +硅油填充。随访1a,分析各组术后BCVA、黄斑裂孔愈合情况、视网膜脱离复位率、再手术率等指标。

结果：两组治疗后平均BCVA(LogMAR视力)均较术前改善,A组由1.61±0.02提升为0.85±0.22(t=10.36,P<0.01),B组由1.59±0.04提升为1.08±0.16(t=7.92,P<0.01),其中A组改善幅度大于B组(t=-2.38,P=0.03)。两组术前术后眼轴均无明显改变(P>0.05)。A组一次手术黄斑裂孔愈合率为91%(21/23),取油前再手术率4%(1/23),取油后无再脱离患者,1a随访期内所有术眼完成了硅油取出。B组一次手术黄斑裂孔愈合率为65%(15/23),取油前再手术率35%(8/23),取油后再脱离比例26%(6/23),1a随访期取出硅油比例74%(17/23)。

结论：后巩膜加固术有助于提高病理性近视黄斑裂孔性视网膜脱离的手术成功率,减少复发及再手术的几率。     

The prognostic significance of peroxisome proliferator-activated receptor β expression in the vascular endothelial cells of colorectal cancer

Objective

Currently, little is known regarding the role of peroxisome proliferator-activated receptor-β (PPAR β) in the vascular endothelial cells (VECs) of colorectal cancers (CRCs). The aim of this study was to investigate the relationship of PPAR β expression in the VECs of CRCs in terms of the prognosis and clinicopathological features of CRC patients.

Design

The expression and localization of PPAR β in the primary cancers and the matched normal mucosal samples of 141 Swedish CRC patients were analyzed in terms of its correlation with clinicopathological features and the expression of angiogenesis-related genes. This study also included 92 Chinese CRC patients.

Results

PPAR β was predominantly localized in the cytoplasm and was significantly downregulated in the VECs of CRC compared to that of the normal mucosa. The low expression levels of PPAR β in the VECs of CRC were statistically correlated with enhanced differentiation, early staging and favorable overall survival and were associated with the increased expression of VEGF and D2-40. The patients exhibiting elevated expression of PPAR β in CRC cells but reduced expression in VECs exhibited more favorable survival compared with the other patients, whereas the patients with reduced expression of PPAR β in CRC cells but increased expression in VECs exhibited less favorable prognosis.

Conclusions

PPAR β might play a tumor suppressor role in CRC cells in contrast to a tumor promoter role in the VECs of CRCs.