The bioavailability of L-dopa is very low, this is due to
A: difficulty to pass through the brain barrier
B: rapid acetylation in liver
C: peripheral hydroxylation
D: a low absorption rate
E: rapid peripheral decarboxylation
A: difficulty to pass through the brain barrier
B: rapid acetylation in liver
C: peripheral hydroxylation
D: a low absorption rate
E: rapid peripheral decarboxylation
举一反三
- Which of the following<br/>is the characteristics of atopic dermatitis<br/>__ __? A: May have family<br/>history B: Not allergic to<br/>protein C: Peripheral blood<br/>eosinophil decrease D: Low immunity
- 以下哪些是ST公司为开发者提供的开发库? A: Stand Peripheral Library B: Hardware Abstraction Layer库 C: Low Level APIs D: STM32Snippets
- Which of the following is found within the nuclei of infected liver cells and not usually in the peripheral circulation? A: HBeAg B: HBsAg C: HBcAg D: Anti-HBc E: Anti-HBe
- The peripheral nervous system links the brain to the _________.（ ） A: spinal cord B: central nervous system C: body D: skeletal system
- Depression has the epidemiological characteristics of“Three High”and “One Low”, namely ( ) and low recovery rate. A: High Incidence B: High recurrence rate C: High suicide rate D: High rate of teratogenesis