Immunology

Asthma answer may not be steroids for women

For women depending on steroids to treat severe asthma, their body's estrogen may not only be preventing the treatment from working effectively, but making the asthma worse, according to a recent Western study.

Cancer

Oncotype DX not cost-effective for low-risk breast cancer

(HealthDay)—The multigene expression test Oncotype DX (ODX) is not cost-effective for women with breast cancer who are at low risk for recurrence, according to research published online Jan. 22 in the Journal of the National ...

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Estrogen

Estrogens (U.S., otherwise oestrogens or œstrogens) are a group of steroid compounds, named for their importance in the estrous cycle, and functioning as the primary female sex hormone, their name comes from estrus (period of fertility for female mammals) + gen = to generate.

Estrogens are used as part of some oral contraceptives, in estrogen replacement therapy for postmenopausal women, and in hormone replacement therapy for transwomen.

Like all steroid hormones, estrogens readily diffuse across the cell membrane. Once inside the cell, they bind to and activate estrogen receptors which in turn up-regulate the expression of many genes. Additionally, estrogens have been shown to activate a G protein-coupled receptor, GPR30.

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