Section 3-7: Integrating Nutrient Function in the Body Flashcards
Effects of nutrition at cellular level
- gene expression
- energy metabolism
- antioxidant activity
effects of nutrition at system level
- bone
- CNS
- immune system
- blood & circulatory system
What is needed for DNA synthesis?
single carbon metabolism – folate + B6 + B12
- transfer of methyl groups needed to make some thymine
DNA methylation needs…
folate + B6 + B12
nutrients that regulate gene expression
- iodine (thyroid hormone)
- vit D
- vit A
- PUFA
(zinc fingers)
nutrients linked to energy metabolism
- thyroid hormone (iodine)
- chromium
antioxidants that can be found in phytochemicals
- vit E
- B-carotene
antioxidants in cytoplasm
- superoxide dismutase
- glutathione peroxidase
- vit C
antioxidants in peroxisome
catalase (iron)
antioxidants in mitochondria
- glutathione peroxidase
- Mn-superoxide dismutase
which vitamins are linked to bone health?
- vit D (calcium)
- vit K (synthesize proteins that regulate bone metabolism)
- vit C (strong crosslinked connective tissue)
which nutrients are associated with CNS?
myelin sheath formation: B12
NT: B6 + AA
which nutrients are important for early development?
- folate (neural tube)
- thyroid hormone (cretinism)
- DHA (brain development)
which nutrients are important for eye health?
- vit A
- phytochemicals: lutein + zeaxanthin
eye diseases related to nutrition
- Xerophthalmia
- Macular degeneration
