B7-h4 is highly expressed in ductal and lobular breast cancer.

PURPOSE: This study was designed to investigate the expression of B7-H4 protein, a member of the B7 family that is involved in the regulation of antigen-specific immune responses, in normal breast and in primary and metastatic breast carcinomas. EXPERIMENTAL DESIGN: Archival formalin-fixed tissue blocks from breast cancers and normal somatic tissues were evaluated for B7-H4 expression by immunohistochemistry with manual and automated image analysis. The proportion of B7-H4-positive cells and the intensity of B7-H4 staining were compared with histologic type, grade, stage, hormone receptor status, and HER-2/neu status. RESULTS: B7-H4 was detected in 165 of 173 (95.4%) primary breast cancers and in 240 of 246 (97.6%) metastatic breast cancers. B7-H4 staining intensity was greater in invasive ductal carcinomas [24.61 relative units (RU)] and in invasive lobular carcinomas (15.23 RU) than in normal breast epithelium (4.30 RU, P = 0.0003). Increased staining intensity was associated with negative progesterone receptor status (P = 0.014) and history of neoadjuvant chemotherapy (P = 0.004), and the proportion of B7-H4-positive cells was associated with negative progesterone receptor (P = 0.001) and negative HER-2/neu (P = 0.024) status. However, there was no statistically significant relationship between the proportion of B7-H4-positive cells or staining intensity and grade, stage, or other clinicopathologic variables. Low levels of B7-H4 expression were also detected in epithelial cells of the female genital tract, lung, pancreas, and kidney, but B7-H4 was generally absent in most other normal somatic tissues. CONCLUSIONS: The nearly ubiquitous expression of B7-H4 in breast cancer, independent of tumor grade or stage, suggests a critical role for this protein in breast cancer biology.     

金瓷修复体制作中的问题分析

目的 研究金属烤瓷修复体制作过程中经常出现的问题及如何补救，探讨提高金瓷修复体修复工艺方面的问题。方法 收集并分析临床近5年制作的580例、共650件金属烤瓷修复体，归纳其在制作中出现的问题。结果 瓷裂及崩瓷18件，占2．76％：气泡15件，占2．31％；铸造缺陷11件，占1．69％；色泽不协调12件，占1．85％。结论 金瓷修复体的加工制作是一个复杂而细致的过程，与技工室制作、临床设计及牙体制备都有密切关系，其中任何一个环节的操作不当都可能导致修复体的失败。     

枸橼酸托瑞米芬片在不同介质中的溶出特性

分别以pH6.8 磷酸盐缓冲液和0.1mol/L HCl及其含0.1%、0.5%、1.0%十二烷基硫酸钠、10%乙醇的改性溶液作溶出介质,评价枸橼酸托瑞米芬片的溶出特性。测定结果显示,本品在pH6.8 磷酸盐缓冲液中几乎不溶出,60min时在后5种溶液中的溶出百分率分别为(44.26±13.00)%、(27.72±12.58)%、(46.20±9.68)%、(87.15±1.16)%和(78.27±9.38)%。后两者溶出参数b、T0.2、T0.3存在统计学差异(P<0.05)。     

复方丹参注射液联合西咪替丁治疗过敏性紫癜效果及安全性系统评价

【摘要】 目的 系统评价复方丹参注射液联合西咪替丁治疗过敏性紫癜的疗效及安全性。方法 检索各种中外文数据库、OA资源库、百度学术搜索引擎以及最新的纸质文献,追溯纳入研究的参考文献,全面收集有关复方丹参注射液联合西咪替丁治疗过敏性紫癜的临床随机对照试验。由两名评审员评估试验的质量并独立提取数据。使用RevMan53软件进行Meta分析。结果 共纳入15个随机对照试验,1005例患者,漏斗图呈不对称分布,提示可能存在发表偏倚或纳入文献方法学质量较低。Meta分析结果显示：在总有效率方面,复方丹参注射液联合西咪替丁组优于含有西咪替丁的常规治疗组和不含西咪替丁的常规治疗组,差异均有统计学意义（P＜005）;和对照组相比,复方丹参注射液联合西咪替治疗过敏性紫癜可以降低复发率和减少肾脏损害率（P＜005）,同时可以缩短皮疹、腹疼、消化道症状、关节疼痛等症状消失时间以及肾脏损害恢复时间（P＜005）;治疗期间均未见严重不良反应的报道。结论 复方丹参注射液联合西咪替丁治疗过敏性紫癜是一种相对安全、有效的治疗方案。但纳入研究的文献质量低,其疗效需要进一步高质量临床试验来验证。     

Rising Proportion of Young Individuals With Rectal and Colon Cancer

Background

Recent trends have identified increasing number of young individuals with rectal and colon cancers. These individuals, who are younger than 50 years old, in most instances would not meet screening guidelines. We aimed to report the characteristics and trend of the rising proportion of young individuals being diagnosed with rectal and colon cancers at our institutions.

Adiponectin and insulin cross talk: The microvascular connection

Adiponectin exerts both vasodilatory and insulin-sensitizing actions and its levels are decreased in insulin-resistant humans and animals. The mechanisms underlying adiponectin?s insulin-sensitizing effect have been extensively investigated but remain largely unclear. Muscle microvasculature critically regulates muscle insulin action by modulating insulin delivery to the microvessels nurturing the muscle cells and the trans-endothelial insulin transport. We have recently reported that adiponectin exerts its insulin-sensitizing effect via recruiting muscle microvasculature, expanding the endothelial surface area, and increasing insulin delivery to and thus action in muscle. The current review focuses on the microvascular connection between the adiponectin and insulin cross talk.     

Carotid webs and ischemic stroke: Experiences in a comprehensive stroke center

Background and purpose

Carotid webs are intraluminal filling defects at the carotid bulb which are considered rare, though possibly underappreciated entities with recent studies demonstrating a likely casual association with ischemic stroke. The purpose of the study is to describe our recent experience with clinical and imaging manifestations of carotid webs.

A comparative study on clinical characterizations between acute myelitis onset of neuromyelitis optica spectrum disease and idiopathic transverse myelitis

ABSTRACT

Background/Aims

Both of neuromyelitis optica spectrum disease (NMOSDs) and idiopathic transverse myelitis (ITM) could present as acute transverse myelitis. However, long-term immunological treatment and prognosis are different for high recurrence of NMOSDs. In this study, we summarized clinical differences between acute attack myelitis of NMOSDs and ITM, we further screened serum auto-antibodies to help understand the two distinct clinical entities.