Seyfried Florian, Hankir Mohammed K
Department of General, Visceral, Vascular and Pediatric Surgery, University Hospital Wuerzburg, Wuerzburg, 97080 Bavaria, Germany.
Department of Experimental Surgery, University Hospital Wuerzburg, Wuerzburg, 97080 Bavaria, Germany.
Cell Stress. 2019 Jan 25;3(2):29-37. doi: 10.15698/cst2019.02.174.
The obese brain is stressed and inflamed. This is mainly at the level of neurons and glial cells in the hypothalamus: a brain region where the adipokine leptin acts to control feeding and body weight. Relieving hypothalamic neuronal endoplasmic reticulum (ER) stress with the natural small molecule drugs celastrol or withaferin-A reverses the leptin resistance commensurate with obesity, producing a degree of weight loss found only with bariatric surgery. Here, recent evidence from rodent models of vertical sleeve gastrectomy (VSG) is brought to the fore which suggests that this particular bariatric surgical procedure may work in a similar fashion to celastrol and withaferin-A alongside remedying hypothalamic inflammation and gliosis. Thus, restoring and preserving healthy hypothalamic neuronal and glial cell function, be it by pharmacological or surgical means, ensures a negative energy balance in an environment constructed to promote a one - possibly through re-establishing communication between adipose tissue and the brain.
肥胖的大脑处于应激和炎症状态。这主要发生在下丘脑的神经元和神经胶质细胞水平:下丘脑是脂肪因子瘦素作用于控制进食和体重的脑区。使用天然小分子药物雷公藤红素或非洲铁海棠减轻下丘脑神经元内质网(ER)应激,可逆转与肥胖相关的瘦素抵抗,产生仅在减肥手术中才会出现的一定程度的体重减轻。在此,来自垂直袖状胃切除术(VSG)啮齿动物模型的最新证据凸显出来,表明这种特定的减肥手术可能以类似于雷公藤红素和非洲铁海棠的方式起作用,同时纠正下丘脑炎症和胶质增生。因此,无论是通过药理学还是手术手段恢复和保持健康的下丘脑神经元和神经胶质细胞功能,都能在一个旨在促进正能量平衡的环境中确保负能量平衡——这可能是通过重新建立脂肪组织与大脑之间的通讯来实现的。