神经
词汇介绍
拓展阅读
解析
Hutchinson
释 义 n. 哈钦森(英国植物学家)
例 句 The book opens dramatically on the day of Wordsworth’s marriage to Mary Hutchinson in 1802. 作品开篇,就戏剧般地将我们带到1802年,华兹华斯和玛丽.哈钦森婚礼当日。
progeria 英 [prə(ʊ)'dʒɪərɪə]
释 义 n. 儿童的早衰症;早衰,早老
例 句 Hayley is one of the first progeria children to try a new class of drug called FTIs (farnesyltransferase inhibitors). 海莉是第一批接受一种最新抑制剂药物治疗的早衰症患儿。
syndrome 英 [ˈsɪndrəʊm] 美 [ˈsɪndroʊm]
释 义 n. [临床] 综合征;综合症状;并发症状;校验子;并发位
例 句 Furthermore, regular monitoring of the organisms causing each syndrome should be conducted on a regular basis to validate the treatment recommendations.此外,应定期对引起每种综合征的生物体展开常规监测,以使推荐治疗方法保持有效。
概述
概述
又名Hutchinson-Gilford综合征、Gilford综合征、Vriot-Pironneau综合征。本征系Hutchinson首先报道,Gilford又加以详细描述并命名为儿童早老症。我国近年来有个案报道。虽然本病为先天遗传性疾病,但还不能确定是常染色体隐性还是显性遗传,一般倾向认为系隐性遗传。
病因
本病的发生系由于遗传因素,导致先天性腺体萎缩和腺体发育不全,脑垂体前叶机能不足是产生本病症状的主因。其他可能的致病因素有结核、梅毒、黄色瘤、肿瘤和X线损伤等。亦可能因结缔组织细胞不能对生长激素起反应,以致胶原发生老化而发生动脉硬化。皮肤成纤维细胞在培养基中生成减慢,存活期缩短,有丝分裂活性DNA合成和形成克隆能力下降。免疫机制亦起一定的作用,控制蛋白合成或降解的基因发生突变,DNA修复缺陷等亦是早老原因之一。
实验室检查
临床上多查不出甲状腺、申状旁腺、垂体和肾上腺方面的异常,但有BMR增高,血脂不正常。实验室检查一般无异常改变,有时可伴血清胆固醇增加和脂蛋白异常。
病理变化
硬皮病样皮肤呈表皮萎缩,皮脂腺萎缩而汗腺正常。真皮增厚,结缔组织可伸入皮下组织。真皮浅层结缔组织正常,深部者呈明显透明样变性。皮下组织减少甚至缺如。心脏可见粥样硬化性改变,心肌和心肌间质中有局灶性纤维化和坏死。许多内脏器官的细胞内有脂褐质色素沉积。
Metabolic Dysfunction in Hutchinson-Gilford Progeria Syndrome复制标题
Hutchinson-Gilford早衰症综合征的代谢功能障碍
发表时间:2020-02-08
影响指数:5.7
作者: Ray Kreienkamp
期刊:Cells
Hutchinson-Gilford Progeria Syndrome (HGPS) is a segmental premature aging disease causing patient death by early teenage years from cardiovascular dysfunction. Although HGPS does not totally recapitulate normal aging, it does harbor many similarities to the normal aging process, with patients also developing cardiovascular disease, alopecia, bone and joint abnormalities, and adipose changes. It is unsurprising, then, that as physicians and scientists have searched for treatments for HGPS, they have targeted many pathways known to be involved in normal aging, including inflammation, DNA damage, epigenetic changes, and stem cell exhaustion. Although less studied at a mechanistic level, severe metabolic problems are observed in HGPS patients. Interestingly, new research in animal models of HGPS has demonstrated impressive lifespan improvements secondary to metabolic interventions. As such, further understanding metabolism, its contribution to HGPS, and its therapeutic potential has far-reaching ramifications for this disease still lacking a robust treatment strategy.
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