Estrone, Serum (Male)
Other names: Estrone, Serum, MS, Estrone, LCMS, Endo Sci
Estrone (E1) is a steroid, a weak estrogen, and a minor female sex hormone. Estrone is one of three major endogenous estrogens, the others being estradiol and estriol. Like the other estrogens, estrone is synthesized from cholesterol and secreted mainly from the gonads, though they can also be formed from adrenal androgens in adipose tissue. Estrone is primarily derived from metabolism of androstenedione in peripheral tissues, especially adipose tissues. Estrone can be converted into estradiol and serves mainly as a precursor or metabolic intermediate of estradiol. In addition, an increase in the ratio of estrone to estradiol may be useful in assessing menopause in women.
Reference Ranges for adults:
Males: 15-65 pg/mL
Females:
Premenopausal: 17-200 pg/mL
Postmenopausal: 7-40 pg/mL
References:
- Coelingh Bennink HJT. Are all estrogens the same? Maturitas. 2004 Apr 15;47(4):269-275. PubMed 15063479
- Kuhl H. Pharmacology of estrogens and progestogens: influence of different routes of administration. Climacteric. 2005 Aug;8 Suppl 1:3-63. PubMed 16112947
What does it mean if your Estrone, Serum (Male) result is too high?
What Does It Mean if "Estrone, Serum, MS" Is Slightly Elevated in a Man?
If estrone (E1) is slightly elevated in a man, it means there's a higher-than-expected level of this estrogen in the bloodstream. Estrone is one of the three main forms of estrogen, and although it's typically associated with female hormones, men also produce it in small amounts—primarily through the conversion of testosterone by an enzyme called aromatase.
The "MS" in the test name stands for mass spectrometry, a precise and highly sensitive method used to measure hormone levels.
Possible Causes of Elevated Estrone in Men
1. Increased Aromatase Activity
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Common in obesity, as fat tissue increases the activity of aromatase, which converts androgens into estrogens.
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Aging can also contribute, as testosterone levels decline over time while estrogen levels may remain stable or increase slightly.
2. Liver Dysfunction
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The liver breaks down excess estrogen. Conditions such as fatty liver, alcohol-related liver disease, or cirrhosis may impair this process, resulting in higher estrogen levels.
3. Hormonal Imbalances
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Low testosterone (hypogonadism) can shift the balance toward relatively higher estrogen levels.
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Elevated sex hormone-binding globulin (SHBG) can also affect how much free (bioavailable) testosterone and estrogen circulate in the blood.
4. Medications or Substance Use
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Some medications can increase estrogen levels, such as spironolactone, ketoconazole, or finasteride.
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Substances like alcohol, marijuana, or anabolic steroid withdrawal may also contribute.
5. Estrogen-Producing Tumors (Rare)
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In rare cases, tumors in the testes, adrenal glands, or pituitary can produce excess estrogens.
Is Slightly Elevated Estrone a Cause for Concern?
A mild increase in estrone is not always a sign of disease but could be meaningful depending on symptoms or clinical context. It may be associated with:
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Development of breast tissue (gynecomastia)
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Decreased libido
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Erectile dysfunction
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Fatigue or mood changes
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Fertility issues
It’s also important to consider if the person is undergoing testosterone replacement therapy, which can influence estrogen levels.
What to Do Next
A healthcare provider may:
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Review current medications, lifestyle factors, and body composition
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Order additional hormone tests, including estradiol, testosterone (free and total), LH, FSH, SHBG, and prolactin
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Evaluate liver function
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Recommend lifestyle adjustments or further diagnostic workup if needed
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What does it mean if your Estrone, Serum (Male) result is too low?
Low levels of estrone in men can have various implications for their health. Estrone is one of the three major estrogens and plays a role in various bodily functions. The normal range for estrone in men is between 15-65 pg/mL. If a man's estrone levels are lower than this range, it could indicate an imbalance in hormone levels.
Estrone levels in men can be influenced by various factors, including age, overall health, and lifestyle. Low levels of estrone could potentially be linked to issues like decreased bone density and reduced energy levels, similar to low levels of other estrogens like estradiol.
Treatment options for low estrone levels typically involve addressing the underlying causes. This could include lifestyle changes such as dietary adjustments, weight loss, and increased physical activity. In some cases, hormone replacement therapy might be considered, but this would depend on individual circumstances and should be discussed with a healthcare provider.
Overall, maintaining balanced hormone levels is crucial for men's health, and if there are concerns about low estrone levels, it is advisable to consult with a healthcare professional for proper assessment and guidance.
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