Estrogens
- estrone, estriol, beta-estradiol
- Adult levels stimulate ephiphyseal closure
- via influences on chondrocyte proliferation and function
and on bone formation
- Facilitate deposition of fat and stimulate muscle growth
- Most affective in castroated male ruminants
- improve gain and feed conversion 10-20%
- Decreases protein degradation
- SHBG Protien Binding
Daily Human 17-beta Estradiol (E2) & Estrone (E1) Production
|
Sex, Age |
Serum Concentration (pg/mL) |
Total Production (pg) |
|
|
E1 |
E2 |
E1 |
E2 |
|
Children |
12.0 |
12.5 |
26,520,000 |
16,875,000 |
|
Males, adult |
38.0 |
37.2 |
97,660,000 |
70,308,000 |
|
Females, 41 yrs |
- |
400.1 |
- |
540,000,000 |
Also see Dietary
and Environmental
Estrogens.
Progesterone
- Female hormone
- Prepares uterus for fetilized egg
Testosterone
- Testosterone is an anabolic/androgenic hormone.
- Naturally produced in both men and women.
- Men: Testis and Adrenal Cortex
- Women: Adrenal Cortex
- Function
- Increased body growth
- Increased deposition of bone salts
- Adult levels stimulate epiphyseal plate closure
- Postnatal increases contributes to larger fibers from induction
of muscle protein accretion
- SHBG Protien Binding
- Bioavailable Testosterone
- Increased by diets high in fat and protein
- Decreased in vegan diets (as is IGF-I)
- Decreased in diets high in carbs
- Decreased if soy protein is substituted for meat protein
- Habito RC, Montalto J, Leslie E, Ball MJ (2000). Effects
of replacing meat with soyabean in the diet on sex hormone concentrations
in healthy adult males. Br J Nutr. 84(4):557-63.
- Percentage free is 1.6 to 2.9 percent
Free Testosterne Level
|
Age |
20-40 |
40-50 |
50-60 |
70+ |
|
ng/ml |
400-1080 |
350-890 |
250-750 |
250-650 |
- Conversion
- About one percent of testosteron is converted to estrogen
- Testosterone is also converted to dihydrotestosterone (DHT)
See more information on Testosterone
and related hormones
|
|