n.缬氨酸；a-氨基异戊酸

Valine is one of the essential amino acids that cannot be synthesized by the human body and must be obtained through diet.
瓜氨酸是人体无法自身合成的必需氨基酸之一，必须通过饮食获取。
The protein in this supplement is rich in leucine, isoleucine, and valine, which are collectively known as branched-chain amino acids (BCAAs).
这种补充剂中的蛋白质富含亮氨酸、异亮氨酸和缬氨酸，这三种氨基酸统称为支链氨基酸（BCAAs）。
A deficiency in valine can lead to neurological disorders and impaired growth in infants.
缺乏缬氨酸可能导致婴儿出现神经系统疾病和生长发育受损。
Researchers found that increasing valine intake could potentially enhance muscle growth and repair processes.
研究人员发现增加缬氨酸摄入量可能有助于增强肌肉生长和修复过程。
During fasting or extreme exercise, valine helps to preserve muscle mass by preventing the breakdown of muscle tissue.
在禁食或剧烈运动期间，缬氨酸通过防止肌肉组织分解来帮助维持肌肉质量。
Valine supplementation may improve physical performance and reduce fatigue during prolonged exercise.
补充缬氨酸可能在长时间运动中改善体能表现并减轻疲劳。
The gene mutation causing valine to replace glutamic acid at position 6 in the hemoglobin chain results in sickle cell anemia.
基因突变导致血红蛋白链上第6位的谷氨酸被缬氨酸取代，从而引发镰状细胞贫血症。
Valine competes with tryptophan for transport across the blood-brain barrier, affecting serotonin levels in the brain.
缬氨酸与色氨酸竞争穿越血脑屏障的运输，从而影响大脑中的血清素水平。
In nutritional science, valine is often included in formulas designed to support wound healing and recovery from illness.
在营养科学中，缬氨酸经常被包含在用于支持伤口愈合和疾病恢复的配方中。
Dietary sources high in valine include meats, dairy products, soybeans, and certain grains such as oats and barley.
富含缬氨酸的食物来源包括肉类、乳制品、大豆以及某些谷物，如燕麦和大麦。