Proteomic profiling of lymphedema development in mouse model

The lymphatic vascular system plays an important role in tissue fluid homeostasis. Lymphedema is a chronic, progressive, and incurable condition that leads to lymphatic fluid retention; it may be primary (heritable) or secondary (acquired) in nature. Although there is a growing understanding of lymphedema, methods for the prevention and treatment of lymphedema are still limited. In this study, we investigated differential protein expressions in sham‐operated and lymphedema‐operated mice for 3 days, using two‐dimensional gel electrophoresis (2‐DE) and mass spectrometry analysis. Male improved methodology for culturing noninbred (ICR) mice developed lymphedema in the right hindlimb. Twenty functional proteins were found to be differentially expressed between lymphedema induced‐right leg tissue and normal left leg tissue. Out of these proteins, the protein levels of apolipoprotein A‐1 preprotein, alpha‐actinin‐3, mCG21744, parkinson disease, serum amyloid P‐component precursor, annexin A8, mKIAA0098 protein, and fibrinogen beta chain precursor were differentially upregulated in the lymphedema mice compared with the sham‐operated group. Western blotting analysis was used to validate the proteomics results. Our results showing differential up‐regulation of serum amyloid P‐component precursor, parkinson disease, and apolipoprotein A‐1 preprotein in lymphedema model over sham‐operated model suggest important insights into pathophysiological target for lymphedema. Copyright © 2016 John Wiley & Sons, Ltd.     

一个Ⅰ型遗传性淋巴水肿中国家系的VEGFR3基因的新突变方式

通过对国人Ⅰ型遗传性淋巴水肿一家系分子遗传学检测,报告VEGFR-3基因新突变。首先在Ⅰ型遗传性淋巴水肿对该家系进行致病基因的连锁分析,然后用DNA直接测序方法进行基因突变分析。连锁分析和单倍体分析确定该家系致病基因位于5q35.3,与Ⅰ型遗传性淋巴水肿连锁。VEGFR-3基因突变分析发现了一个新的错义突变D1055V,该错义突变在家系中共分离,且在100个正常对照组中未发现该序列改变。本研究首次报告了国内Ⅰ型遗传性淋巴水肿VEGFR-3基因新的错义突变D1055V,丰富了VEGFR-3基因基因突变谱,为今后开展遗传性淋巴水肿的基因诊断和遗传咨询奠定基础。     

一个Ⅰ型遗传性淋巴水肿中国家系的VEGFR3基因的新突变方式

通过对国人Ⅰ型遗传性淋巴水肿一家系分子遗传学检测,报告VEGFR-3基因新突变.首先在Ⅰ型遗传性淋巴水肿对该家系进行致病基因的连锁分析,然后用DNA直接测序方法进行基因突变分析.连锁分析和单倍体分析确定该家系致病基因位于5q35.3,与Ⅰ型遗传性淋巴水肿连锁.VEGFR-3基因突变分析发现了一个新的错义突变D1055V.该错义突变在家系中共分离,且在100个正常对照组中未发现该序列改变.本研究首次报告了国内Ⅰ型遗传性淋巴水肿VEGFR-3基因新的错义突变D1055V,丰富了VEGFR-3基因基因突变谱,为今后开展遗传性淋巴水肿的基因诊断和遗传咨询奠定基础.     

Lymphatic development

The lymphatic system is essential for fluid homeostasis, immune responses, and fat absorption, and is involved in many pathological processes, including tumor metastasis and lymphedema. Despite its importance, progress in understanding the origins and early development of this system has been hampered by lack of defining molecular markers and difficulties in observing lymphatic cells in vivo and performing genetic and experimental manipulation of the lymphatic system. Recent identification of new molecular markers, new genes with important functional roles in lymphatic development, and new experimental models for studying lymphangiogenesis has begun to yield important insights into the emergence and assembly of this important tissue. This review focuses on the mechanisms regulating development of the lymphatic vasculature during embryogenesis. Birth Defects Research (Part C) 87:222–231, 2009. © 2009 Wiley‐Liss, Inc.     

自拟温阳利水汤联合地奥司明治疗乳腺癌术后上肢淋巴水肿的疗效观察

摘要 目的：探究自拟温阳利水汤联合地奥司明治疗乳腺癌术后上肢淋巴水肿的疗效。方法：选择2013年1月至2019年6月在我院经病理确诊为乳腺癌术后上肢淋巴水肿的住院患者80例,根据治疗方式不同分为两组,每组各40例,其中,对照组采用地奥司明进行治疗,研究组在对照组基础上联合自拟温阳利水汤进行治疗,两组均连续治疗15 d;对比两组的治疗总有效率,对比两组治疗前后的腕横纹、肘横纹、腕横纹上10 cm、肘横纹上10 cm处臂围;对比两组患者治疗前后的前屈、后伸、外展、内收等活动角度。结果：研究组治疗总有效率95.00 %（38/40）显著高于对照组75.00 %（30/40）,对比有显著差异（P＜0.05）;治疗前,两组的腕横纹、肘横纹、腕横纹上10 cm、肘横纹上10 cm处臂围对比无统计学差异（P＞0.05）;治疗后,两组的腕横纹、肘横纹、腕横纹上10 cm、肘横纹上10 cm处臂围均比治疗前有所减小,且研究组更小（P＜0.05）;治疗前,两组的前屈、后伸、外展、内收等活动角度对比无统计学差异（P＞0.05）;治疗后,两组患者的前屈、后伸、外展、内收等活动角度均比治疗前有所增大,且研究组更大（P＜0.05）。结论：自拟温阳利水汤联合地奥司明治疗乳腺癌术后上肢淋巴水肿的疗效显著,该方法可有效改善患者的肩关节活动度,临床应用价值较高。     

综述与专论: 低功率光照疗法对机体免疫应答的影响

最近几年,采用红至红外波长(600～1 100 nm)的低功率光照(low-dose light,LDL)疗法对组织代谢系统、神经系统、血液循环系统和免疫系统等方面的调节效应已经引起了广泛关注．同时,生物能学和光生物学基础研究的发展推动了低功率光照在疾病治疗领域的革新．有报道指出,巨噬细胞、肥大细胞、中性粒细胞和淋巴细胞等免疫细胞能响应低功率光照,产生细胞因子和保护性的蛋白质分子来缓解一些疾病的进程．因此,本文将从分子、细胞和组织水平对低功率光照改善的一些疾病的免疫学现象及机制进行归纳总结．     

肢体淋巴水肿磁共振淋巴造影技术方法的实验研究

目的:研究肢体水肿演变过程中不同时期的MR淋巴造影影像特征及其病理基础,探讨MR淋巴造影在肢体淋巴水肿方面的诊断价值。方法:用改良的Danese手术方法在20只新西兰大白兔后肢一侧形成淋巴水肿模型,另一侧作为对照。在每只大白兔双侧后肢足背部趾蹼处注射0.2ml欧乃影,于淋巴水肿演变过程的不同时期进行三维MR淋巴造影。结果:MR淋巴造影能准确地确定淋巴管阻塞的部位,反映淋巴管形态、功能的状况。肢体淋巴水肿的不同时期,由于其病理基础不同,产生不同的MR淋巴造影表现。结论:间质MR淋巴造影可以在解剖背景下敏感而又可靠地显示各期肢体淋巴水肿。     

磁共振间质淋巴造影实验研究

目的:探讨间质MR淋巴造影对肢体淋巴水肿的诊断价值。方法:用改良的Danese手术方法在13只新西兰大白兔后肢一侧形成淋巴水肿模型,另一侧作为对照。在每只大白兔双侧后肢足背部趾蹼处注射0.2ml欧乃影,按摩注射部位30秒钟。分别于造影剂注射前后进行三维MR淋巴造影及延迟淋巴造影成像。结果:实验侧淋巴管阻塞早期为渗出性改变及淋巴管侧支开放,晚期出现淋巴管扩张、迂曲、皮肤逆流。引流远端淋巴结显影较对照侧明显延迟。对照侧欧乃影吸收迅速,引流区域各组淋巴结、淋巴管及胸导管显示清晰。结论:间质MR淋巴造影可以在解剖背景下很好地显示引流区域淋巴管、淋巴结的解剖形态、功能及其异常表现。