雌激素α受体PvuⅡ和XbaⅠ基因多态性与产后抑郁障碍的相关性

目的探讨雌激素α受体(ERα)基因多态性与产后抑郁障碍发生的关联性,为产后抑郁障碍发生的病因机制提供遗传学证据,进而为疾病基因诊断与治疗提供理论基础。方法选取产后抑郁障碍产妇(产后抑郁组)与健康产妇(正常对照组)各45例,运用限制性片段长度多态性聚合酶链式反应分析法、基因记数法统计两组ERα基因的基因型和等位基因频率,分析ERαPvuⅡ和XbaⅠ多态性与产后抑郁的关联性。结果产后抑郁组与正常对照组ERαPvuⅡ基因型及等位基因(P与p)频率分布差异有统计学意义(P<0.05),产后抑郁组与正常对照组ERαXbaⅠ基因型及等位基因(X与x)频率分布差异无统计学意义(P>0.05),ERαPvuⅡ与XbaⅠ联合基因型分布差异无统计学意义(P>0.05)。结论 ERαPvuⅡ基因多态性与产后抑郁障碍发病有相关性,XbaⅠ基因型突变对于产后抑郁障碍发病无相关性,联合基因分析,产后抑郁产妇与健康产妇整体基因型分布相似。     

Serum lemur tyrosine kinase-3: a novel biomarker for screening primary non-small cell lung cancer and predicting cancer progression

Purpose: We aimed to determine the expression level of serum soluble lemur tyrosine kinase-3 (sLMTK3) in human non-small cell lung cancer (NSCLC), and to examine whether the s sLMTK3 level could be used as a biomarker to screen primary NSCLC and to predict lung cancer progression. Methods: Serum levels of sLMTK3 in 67 patients with primary NSCLC, 28 patients with lung benign lesion, and 53 healthy volunteers were measured by sandwich ELISA. LMTK3 protein expression in NSCLC tissues and normal lung tissues was also detected by using immunohistochemical staining. Receiver operating characteristic (ROC) curve was selected to evaluate the sensitivity and the specificity of serum sLMTK3 level. Results: The mean concentration of sLMTK3 in NSCLC group was significantly higher than in the lung benign lesion group (P < 0.001) and the healthy control group (P < 0.001). Higher sLMTK3 level was correlated with age (P = 0.013), tumor-node-metastasis (TNM) stage (P < 0.001), and lymph node metastasis (P < 0.001) of NSCLC. In contrast to the normal lung tissues, increased LMTK3 expression was found in the NSCLC tissues, and was mainly located on the cytoplasm and the nuclei of cancer cells. For separating NSCLC from control group, the corresponding areas under the ROC curve (AUC) were 0.947 for sLMTK3 and 0.804 for CEA. With cutoffs of 10.05 ng/ml for sLMTK3 and 5.0 ng/ml for CEA respectively, the sensitivity and the specificity of sLMTK3 and CEA were, 80.60% and 97.53%, 35.82% and 96.30%, respectively, indicating better diagnostic value of sLMTK3. Conclusions: The sLMTK3 level was significantly increased in human NSCLC, and could be used as a potential and valuable biomarker for screening primary NSCLC and for predicting the progression of patients with this malignancy.     

Upregulation of cell surface estrogen receptor alpha is associated with the mitogen-activated protein kinase/extracellular signal-regulated kinase activity and promotes autophagy maturation

Recently, accumulating evidence has implicated the dysregulation of autophagy as underlying the pathophysiology of several neurodegenerative diseases. The human neuronal cell line SH-SY5Y was exposed to 1-Methyl-4-phenylpyridinium (MPP⁺). The mechanism is that the sustained activation of the MAPK/ERK pathway by MPP⁺ alters autophagy selectively at the maturation step, significant increasing in autophagy formation and delaying in autophagy degradation in SHSY5Y cells. In this study, we provided evidences that estrogen was capable of promoting SHSY5Y cells survival in MPP⁺-treated group. In particular, the up-regulation of mERα, but not mERβ, was associated with a rapid and transient activation of ERK phosphorylation compatible with promoting autophagy maturation. The up-regulation of mERα changed the sustained activation of ERK phosphorylation in MPP⁺-treated group into a temporary activation. Taken together, these findings strongly support that the expression of mERα promotes the maturation of autophagosomes into functional autolysosomes by regulating ERK, determining SHSY5Y cells survival.     

PTEN缺失型子宫内膜癌中ER、PR的表达及意义

目的：探讨ER、PR在PTEN缺失型子宫内膜癌中的表达及PTEN、ER和PR表达特征与子宫内膜癌组织临床病理特征的关系。方法采用免疫组化EnVision法检测100例子宫内膜癌组织中PTEN、ER和PR表达。结果 PTEN在子宫内膜癌患者的缺失率为52．0%(52/100);PTEN缺失型子宫内膜癌组织中ER和PR阳性率分别为15．4%(8/52)和19．2%(10/52), PTEN高表达子宫内膜癌组织中ER和PR阳性率分别为72．7%(8/11)和63．6%(7/11);子宫内膜癌患者中PTEN-ER-PR-的比率为42．0%(42/100),均明显高于其它类型(P<0．05)。不同PTEN、ER和PR表达特征与子宫内膜癌患者组织学分级和病理分期有关(P<0．05),与肌层浸润无关。结论 PTEN、ER、PR三者联合检测可能对子宫内膜癌患者预后及治疗具有重要参考价值。     

绝经后妇女冠心病患者性激素变化的研究

目的 探索与绝经后妇女冠心病发病有关的体内性激素（ＳＨ）的变化规律。     

卵巢早衰临床特征探析

从卵巢早衰的病因病机、症状体征、性激素检查以及治疗探析本病的临床特征。结果表明,卵巢早衰的病因与家族遗传、性生活匮乏、过度操劳、不良生活习惯、失血性贫血、卵巢自身疾病以及医源性因素等相关;病机主要为肾亏脾虚,其次与心肾不交、肝脾失调、痰湿瘀浊等因素相关。症状以月经早闭为主,伴随绝经综合征的临床表现;体征为生殖器官的提前萎缩,促性腺激素水平升高,雌激素水平下降。治疗以补肾健脾为主,调理心肝为辅,配合理气活血,祛湿化痰,或中西医结合治疗。     

Hormonal receptors and vascular endothelial growth factor in juvenile nasopharyngeal angiofibroma: immunohistochemical and tissue microarray analysis

Conclusion: This work demonstrated that juvenile nasopharyngeal angiofibromas (JNAs) express high levels of hormone receptors and vascular endothelial growth factor (VEGF) compared with normal nasal mucosa. The interaction between hormone receptors and VEGF may be involved in the initiation and growth of JNA. Objectives: JNA is a rare benign tumor that occurs almost exclusively in male adolescents. Although generally regarded as a hormone-dependent tumor, this has not been proven in previous studies. The aim of this study was to investigate the role of hormone receptors in JNA and the relationship with clinical characteristics. Methods: Standard immunohistochemical microarray analysis was performed on 70 JNA samples and 10 turbinate tissue samples. Specific antibodies for androgen receptor (AR), estrogen receptor-α (ER-α), estrogen receptor-β (ER-β), progesterone receptor (PR), and VEGF were examined, and the relationships of receptor expression with age, tumor stage, and bleeding were evaluated. Results: Results showed that JNA expressed ER-α (92.9%), ER-β (91.4%), AR (65.7%), PR (12.8%), and VEGF (95.7%) at different levels. High level of VEGF was linked to elevated ER-α and ER-β. There was no significant relationship between hormonal receptors and age at diagnosis, tumor stage or bleeding. However, overexpression of ER-α was found to be an indicator of poor prognosis (p = 0.031).     

Estrogen receptor <Emphasis Type="Italic">α</Emphasis> expression in mice kidney shows sex differences during aging

We have used semi quantitative RT-PCR and western blotting for the analysis of expression of estrogen receptor (ER) and mRNA and protein in the kidney of adult and old mice of both sexes. Uterus, a well-known target for estrogen action, was used for comparison. As compared to adult, the expression of both ER mRNA and protein of old mice decreased in male but increased in female. However, unlike uterus, neither ER mRNA nor protein could be detected in the kidney of adult or old mice. Thus the present data reveal that the expression of ER in mice kidney shows sex differences during aging.     

雌激素替代辅助治疗老年绝经女性再发性下尿路感染

目的研究雌激素替代辅助治疗老年女性再发性下尿路感染的疗效。方法绝经期后再发性下尿路感染患者146例,随机分为2组,治疗组采用7-甲异炔诺酮(livial,利维爱)或雌三醇(ovestin,欧维婷)联合抗生素,对照组则只采用抗生素治疗。随访观察治疗后6月内的情况。结果随着时间的推移,雌激素辅助治疗组下尿路感染的再发生率逐渐降低,3月时差异最显著;但雌激素停用3月后2组的再发感染率又归于相近。结论对于在治疗老年女性再发性下尿路感染时长期使用雌激素辅助疗法的利弊,临床上尚需要进一步研究。