Vitamin A promotes the biosynthesis and differentiation of bone cells in protein. When it is deficient, the balance between osteoblasts and osteoclasts is destroyed, or due to the enhancement of osteogenic activity, the bone proliferates excessively, or the formed bone is not absorbed.
2. Promote growth and reproduction
Vitamin A contributes to cell proliferation and growth. When animals are deficient in vitamin A, growth stagnation appears obviously, which may be related to the decrease of animal appetite and protein utilization rate.
3. Inhibit tumor growth
Clinical trials show that retinoic acid can delay or prevent precancerous lesions and prevent chemical carcinogens, especially for epithelial tumors, and has achieved good results as an adjuvant treatment in clinic.
Extended data:
The role of vitamin a
1. has the functions of regulating the metabolism of epidermis and stratum corneum, resisting aging and removing wrinkles.
2. Reduce sebum overflow, make skin elastic, fade spots and soften skin at the same time.
3. Helps to protect epidermis and mucosa from bacteria, healthy skin and prevent skin cancer.
4. Prevent night blindness and vision loss, treat various eye diseases, and make women bright and ignorant.
References:
Baidu encyclopedia-vitamin a