Histologically, theislets consist of three major and at least two minor cell types.
Beta cells, which synthesize and secrete insulin, make up about 60% of a typical islet.
Alpha cells are the source of glucagon, 30% of islet tissue.
Delta cell, which are less abundant, produce somatostatin.
F cells, which secrete pancreatic polypeptide.
Fifth cell type that secretes ghrelin.
Fifty cell typ
▦ Physiologic Action of Gut Hormones
Criteria
① Peptide must be related into blood during time that a biologic response in a target organ is being stimulated or inhibited
② IV infusion of pure natural peptide must reproduce the effect on target organ
③ Synthetic peptide should reproduce the effect found with natural peptide
④ Circulating concentration of peptide that cause stimulat
ENDOCRINE ROLES
The hormones modulate every other aspect of cellular nutrition
-Rate of adsorption of food stuffs
-Cellular storage or metabolism of nutrients
Theislets of Langerhans
The endocrine pancreas consists of The endocrine pancreas consists of 0.7-1 million small endocrine glands -theislets of Langerhans- scattered within the glandular substance of the exocrine pancreas.
1. 가장 적당한 하루 칼로리량을 산출하여 섭취
2. 당질량을 제한
3. 당질, 단백질, 지질 등 3대 영양소의 균형을 지킨다
4. Vitamin, Mineral을 적당히 보급한다
1. 근육의 노화를 방지
2. 인슐린의 작용을 강화하고 비만을 억제
★ 식사량과 운동량은 균형을 이뤄야 한다.
☆ 규칙적인