Alhasaniah Abdulaziz Hassan
Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, Najran University, P.O. Box 1988, Najran 61441, Saudi Arabia.
Saudi J Biol Sci. 2023 Feb;30(2):103555. doi: 10.1016/j.sjbs.2022.103555. Epub 2022 Dec 30.
Carnitine is a medically needful nutrient that contributes in the production of energy and the metabolism of fatty acids. Bioavailability is higher in vegetarians than in people who eat meat. Deficits in carnitine transporters occur as a result of genetic mutations or in combination with other illnesses such like hepatic or renal disease. Carnitine deficit can arise in diseases such endocrine maladies, cardiomyopathy, diabetes, malnutrition, aging, sepsis, and cirrhosis due to abnormalities in carnitine regulation. The exogenously provided molecule is obviously useful in people with primary carnitine deficits, which can be life-threatening, and also some secondary deficiencies, including such organic acidurias: by eradicating hypotonia, muscle weakness, motor skills, and wasting are all improved l-carnitine (LC) have reported to improve myocardial functionality and metabolism in ischemic heart disease patients, as well as athletic performance in individuals with angina pectoris. Furthermore, although some intriguing data indicates that LC could be useful in a variety of conditions, including carnitine deficiency caused by long-term total parenteral supplementation or chronic hemodialysis, hyperlipidemias, and the prevention of anthracyclines and valproate-induced toxicity, such findings must be viewed with caution.
肉碱是一种医学上必需的营养素,有助于能量的产生和脂肪酸的代谢。素食者体内肉碱的生物利用度高于肉食者。肉碱转运体缺乏是由基因突变或与其他疾病(如肝脏或肾脏疾病)共同导致的。由于肉碱调节异常,在诸如内分泌疾病、心肌病、糖尿病、营养不良、衰老、败血症和肝硬化等疾病中可能会出现肉碱缺乏。外源性提供的肉碱分子对患有原发性肉碱缺乏症(这可能危及生命)以及一些继发性缺乏症(包括某些有机酸尿症)的人显然是有用的:通过消除肌张力减退、肌肉无力,运动技能得到改善,消瘦情况也有所改善。据报道,左旋肉碱(LC)可改善缺血性心脏病患者的心肌功能和代谢,以及心绞痛患者的运动表现。此外,尽管一些有趣的数据表明LC可能在多种情况下有用,包括长期全胃肠外营养补充或慢性血液透析引起的肉碱缺乏、高脂血症以及预防蒽环类药物和丙戊酸盐引起的毒性,但必须谨慎看待这些发现。