Progesterone News and Research

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Testosterone may improve women's sex lives after menopause

The addition of testosterone to hormone therapy in women after menopause enhances their sexual function. However, it may also reduce HDL cholesterol (the "good" cholesterol) in women, according to a systematic review of current evidence.

23 Oct 2005

Study of the molecular mechanism involved in the human implantation process

In spite of advances in assisted reproductive technologies, more than 6.1 million women in the United States - roughly 20 percent of all women of reproductive age - suffer from infertility.

17 Oct 2005

Why do estrogen-dependent breast-cancer cells grow and spread rapidly?

Researchers at the University of Illinois at Urbana-Champaign say it may be because estrogen virtually eliminates levels of a vitally important regulatory protein.

10 Sep 2005

Fine-tuning fertility testing with take-home technology

A take-home fertility-testing kit under development in a Massey University laboratory will give women and couples further control over pregnancy planning.

6 Sep 2005

For post-menopausal women light to moderate exercise is best

A British expert says that although exercise is important for reducing the risk of osteoporosis and heart disease in post-menopausal women, too much exercise in pre-menopausal women may actually increase the risks.

5 Sep 2005

MiRNA is opening up a whole new way of understanding carcinogenesis

Scientists mining vast, largely unexplored regions of the human genome have identified a small handful of mini-molecules that play a major role in the development of cancer and perhaps many other diseases.

15 Aug 2005

Bone marrow may be source of new egg-cell generation

Last year a group of Massachusetts General Hospital (MGH) researchers announced surprising findings that female mice - contrary to longstanding theories of mammalian reproductive physiology - retained the ability to make new egg cells or oocytes into adulthood.

27 Jul 2005

Infectious diseases pose a serious threat to the nation's public health

Infectious diseases pose a serious threat to the nation's public health. Today, experts addressed key developments to the current and future outlook of infectious diseases, highlighting adolescent immunizations, outbreaks and epidemics of infectious diseases, antimicrobial resistance and new developments in HIV medicine, at a press conference sponsored by the National Foundation for Infectious Diseases (NFID).

27 Jul 2005

New research tool replicates extreme environmental conditions to help understand the human body's response to everyday stresses

A new research tool will allow University of Oregon scientists to replicate an extreme range of environmental conditions in their quest to test and understand the human body's response to everyday stresses.

21 Jun 2005

Cardiovascular researchers at the University of Oregon use new environmental chamber to investigate the body's response to stress

19 Jun 2005

Chase those monthly blues away with a diet rich in calcium and vitamin D

U.S. researchers say that a diet rich in calcium and vitamin D might very well help banish pre-menstrual syndrome (PMS).

14 Jun 2005

Study clarifies risk of recurrence for high-risk breast cancer patients

High-risk breast cancer patients do not appear to have a higher risk of relapse than the general breast cancer population during the first two years after diagnosis, unless their cancer has spread to more than 10 axillary lymph nodes, Italian researchers reported at the 2nd ESMO Scientific & Educational Conference (ESEC) in Budapest, Hungary.

6 Jun 2005

New study linking pain relievers and breast cancer fails to convince experts

Research in recent years has consistently linked the use of aspirin and other anti-inflammatory pain relievers with a lower risk of colon cancer, but findings about the drugs' effect on breast-cancer risk have been very mixed with some studies suggesting that the pain relievers protect against breast cancer, while others have found no link.

1 Jun 2005

Ibuprofen use is associated with an increased risk of breast cancer

Ibuprofen use is associated with an increased risk of breast cancer, and long-term daily use of aspirin is associated with an increased risk of estrogen receptor/progesterone receptor (ER/PR)-negative breast cancer, according to a new study in the June 1 issue of the Journal of the National Cancer Institute.

30 May 2005

Increased levels of estrogen that occur during pregnancy may be associated with improvement in psoriasis

Anecdotal reports have suggested that psoriasis tends to improve during pregnancy, according to background information in the article. The current study investigated prospectively how psoriasis fluctuates in pregnancy and correlated progesterone and estrogen levels in pregnancy with psoriatic change.

16 May 2005

Changes in certain brain receptors can affect seizures and anxiety during the menstrual cycle

A new UCLA study shows that changes in certain brain receptors can affect seizures and anxiety during the menstrual cycle--findings that could lead to novel therapies for premenstrual dysphoric disorder (PMDD, formerly known as PMS) and other central nervous system symptoms associated with the menstrual cycle.

16 May 2005

Zometa reduces bone loss in patients receiving breast cancer treatment

Data presented at the American Society of Clinical Oncology (ASCO) annual meeting in Orlando, Florida, demonstrate that Zometa (zoledronic acid), an intravenous bisphosphonate, was shown to inhibit bone loss in postmenopausal women treated with Femara (letrozole) in the adjuvant breast cancer setting (directly following surgery to prevent cancer recurrence).

16 May 2005

Postmenopausal women who consume even moderate amounts of alcohol may face an increased risk of breast cancer

Postmenopausal women who consume even moderate amounts of alcohol may face an increased risk of breast cancer, particularly if their cancer is fueled by the hormones estrogen or progesterone, according to a data analysis by researchers at Boston's Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard School of Public Health.

15 May 2005

Simple and efficient method for creation of novel protein functions in an existing protein scaffold

By designing a molecular bridge, scientists at the University of Illinois at Urbana-Champaign have forged a successful pathway through a complex ocean of barriers: They've changed the function of a protein using a co-evolution approach.

8 May 2005

HIV treatment not affected by hormonal birth control

Estrogen and progesterone hormones in birth control do not influence the effectiveness of highly active antiretroviral therapy (HAART), which is used to treat HIV infection, according to researchers from the Johns Hopkins Bloomberg School of Public Health and other institutions. The study is published in the May 1, 2005, issue of the American Journal of Epidemiology.

2 May 2005