Research Feeds

View All
Characterizing the gut microbiota in females with infertility and preliminary results of a water-soluble dietary fiber intervention study A prebiotic dietary pilot intervention restores faecal metabolites and may be neuroprotective in Parkinson’s Disease Diagnosis of the menopause: NICE guidance and quality standards Causes of Death in End-Stage Kidney Disease: Comparison Between the United States Renal Data System and a Large Integrated Health Care System Factors affecting the absorption and excretion of lead in the rat Factors associated with age at menarche, menstrual knowledge, and hygiene practices among schoolgirls in Sharjah, UAE Cadmium transport in blood serum The non-pathogenic Escherichia coli strain Nissle 1917 – features of a versatile probiotic Structured Exercise Benefits in Euthyroid Graves’ Disease: Improved Capacity, Fatigue, and Relapse Gut Microbiota Regulate Motor Deficits and Neuroinflammation in a Model of Parkinson’s Disease A Pilot Microbiota Study in Parkinson’s Disease Patients versus Control Subjects, and Effects of FTY720 and FTY720-Mitoxy Therapies in Parkinsonian and Multiple System Atrophy Mouse Models Dysbiosis of the Saliva Microbiome in Patients With Polycystic Ovary Syndrome Integrated Microbiome and Host Transcriptome Profiles Link Parkinson’s Disease to Blautia Genus: Evidence From Feces, Blood, and Brain Gut microbiota modulation: a narrative review on a novel strategy for prevention and alleviation of ovarian aging Long-term postmenopausal hormone therapy and endometrial cancer

Long-term postmenopausal hormone therapy and endometrial cancer Original paper

Researched by:

  • Divine Aleru ID
    Divine Aleru

    User avatarI am a biochemist with a deep curiosity for the human microbiome and how it shapes human health, and I enjoy making microbiome science more accessible through research and writing. With 2 years experience in microbiome research, I have curated microbiome studies, analyzed microbial signatures, and now focus on interventions as a Microbiome Signatures and Interventions Research Coordinator.

    Read More

August 21, 2025

  • Women’s Health
    Women’s Health

    Women’s health, a vital aspect of medical science, encompasses various conditions unique to women’s physiological makeup. Historically, women were often excluded from clinical research, leading to a gap in understanding the intricacies of women’s health needs. However, recent advancements have highlighted the significant role that the microbiome plays in these conditions, offering new insights and potential therapies. MicrobiomeSignatures.com is at the forefront of exploring the microbiome signature of each of these conditions to unravel the etiology of these diseases and develop targeted microbiome therapies.

  • Hormone Replacement Therapy (HRT)
    Hormone Replacement Therapy (HRT)

    Hormone Replacement Therapy (HRT) is one of the most effective treatments for women experiencing the symptoms of menopause, particularly vasomotor symptoms such as hot flashes and night sweats. But its benefits go beyond just symptom management. HRT can also play a key role in improving vaginal health by alleviating dryness and discomfort, which are common complaints among women in menopause. Additionally, it helps prevent bone loss, significantly reducing the risk of osteoporosis and fractures, which are more common after menopause. Despite its many benefits, HRT is not one-size-fits-all; it’s essential to tailor treatment based on individual health profiles, taking into account the risks like breast cancer, blood clots, and heart disease that come with prolonged use.

Researched by:

  • Divine Aleru ID
    Divine Aleru

    User avatarI am a biochemist with a deep curiosity for the human microbiome and how it shapes human health, and I enjoy making microbiome science more accessible through research and writing. With 2 years experience in microbiome research, I have curated microbiome studies, analyzed microbial signatures, and now focus on interventions as a Microbiome Signatures and Interventions Research Coordinator.

    Read More

Last Updated: 2025-08-21

Microbiome Signatures identifies and validates condition-specific microbiome shifts and interventions to accelerate clinical translation. Our multidisciplinary team supports clinicians, researchers, and innovators in turning microbiome science into actionable medicine.

Divine Aleru

I am a biochemist with a deep curiosity for the human microbiome and how it shapes human health, and I enjoy making microbiome science more accessible through research and writing. With 2 years experience in microbiome research, I have curated microbiome studies, analyzed microbial signatures, and now focus on interventions as a Microbiome Signatures and Interventions Research Coordinator.

What was studied?

This study investigates the association between long-term postmenopausal hormone therapy (HT) use and the risk of developing endometrial cancer. Specifically, it examines different HT regimens, including estrogen therapy (ET) and estrogen-progestin therapy (EPT), and how their duration and composition may influence the risk of endometrial cancer. The research uses data from the California Teachers Study (CTS), a large cohort of women, to analyze hormone therapy patterns and their correlation with endometrial cancer incidence.

Who was studied?

The study population consisted of 311 women diagnosed with invasive endometrial cancer and 570 control women, all part of the CTS cohort. The participants were postmenopausal women who had not undergone hysterectomy and were part of an ongoing study of California teachers. The study controlled for factors such as age, race, BMI, reproductive history, and other known endometrial cancer risk factors.

Most important findings

The study found that long-term use (≥10 years) of ET, short-sequential EPT, and continuous-combined EPT (progestin ≥25 days/month) were all associated with a significantly increased risk of endometrial cancer. The risk was most pronounced for women using ET and short-sequential EPT, with odds ratios (ORs) of 4.5 and 4.4, respectively. Continuous-combined EPT was associated with an OR of 2.1 for long-term use. The risk for continuous-combined EPT was higher among women with a BMI <25 kg m2, whereas heavier women (bmi ≥ 25 m2) had a reduced or neutral risk. furthermore, the duration of hormone therapy use showed dose-dependent relationship with cancer risk, longer durations significantly elevating likelihood endometrial cancer.< p>

Key implications

The findings underscore the importance of considering both the type of hormone therapy and the duration of use when evaluating cancer risks in postmenopausal women. Clinicians should be aware that long-term use of ET or short-sequential EPT, especially in women with a lower BMI, significantly increases endometrial cancer risk. However, continuous-combined EPT may have a more complex risk profile, with its effects potentially modulated by body weight. These results suggest the need for personalized approaches to hormone therapy, where treatment regimens and duration are carefully tailored to minimize cancer risks, particularly in lean women.

Hormone Replacement Therapy (HRT)

Hormone Replacement Therapy (HRT) is one of the most effective treatments for women experiencing the symptoms of menopause, particularly vasomotor symptoms such as hot flashes and night sweats. But its benefits go beyond just symptom management. HRT can also play a key role in improving vaginal health by alleviating dryness and discomfort, which are common complaints among women in menopause. Additionally, it helps prevent bone loss, significantly reducing the risk of osteoporosis and fractures, which are more common after menopause. Despite its many benefits, HRT is not one-size-fits-all; it’s essential to tailor treatment based on individual health profiles, taking into account the risks like breast cancer, blood clots, and heart disease that come with prolonged use.

Estrogen

Estrogen is a steroid hormone primarily found in women, crucial for reproductive health, secondary sexual characteristics, and various physiological processes. It regulates menstrual cycles, supports pregnancy, and influences bone density and cardiovascular health. Dysregulation of estrogen levels can lead to various disorders and health complications.

Join the Roundtable

Contribute to published consensus reports, connect with top clinicians and researchers, and receive exclusive invitations to roundtable conferences.