progesterone/neoplasms

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The value of progesterone receptor expression in predicting the Recurrence Score for hormone-receptor positive invasive breast cancer patients.

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BACKGROUND OncotypeDX(®) (ODX) is a well-validated assay for breast cancer treatment planning. We explored whether the conventional pathological factors could pick up high risk patients without the help of the ODX. METHODS The ODX was performed on 139 hormone receptor-positive invasive breast

Coffee and black tea consumption and risk of breast cancer by estrogen and progesterone receptor status in a Swedish cohort.

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BACKGROUND Coffee and tea consumption has been inconsistently associated with the risk of breast cancer. We examined the associations of caffeinated coffee and black tea consumption with the incidence of breast cancer, overall and by estrogen receptor (ER) and progesterone receptor (PR) status of

Reproductive epidemiology of glial tumors may reveal novel treatments: high-dose progestins or progesterone antagonists as endocrino-immune modifiers against glioma.

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Female gender, contraceptives, and menopausal hormone replacement treatments containing progesterone analogues associate with higher risk of meningiomas yet with lower risk of gliomas. Progesterone receptor (PR) expression and mifepristone treatment was highly discussed for meningiomas. However,

Alcohol and postmenopausal breast cancer risk defined by estrogen and progesterone receptor status: a prospective cohort study.

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BACKGROUND Alcohol intake has been reported to be positively associated with an increased risk of postmenopausal breast cancer; however, the association with the estrogen receptor (ER) and progesterone receptor (PR) status of the breast tumors remains unclear. METHODS Self-reported data on alcohol

Enzymatic responses of transplanted tumour cells towards estrogen, progesterone and testosterone.

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The influence of estrogen, progesterone and testosterone on the activities of alkaline and acid phosphatases, adenosine triphosphatase and succinate dehydrogenase were determined by cytochemical methods in sarcoma 180 and Ehrlich's carcinoma cells transplanted in male and female Swiss mice. The

Enzymatic responses of transplanted tumour cells towards estrogen, progesterone and testosterone.

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Effects of androgens on proliferation and progesterone receptor levels in T47D human breast cancer cells.

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The effects of estradiol (E2), dihydrotestosterone (DHT) and dehydro-3-epiandrosterone (DHEA) on proliferation and progesterone receptor induction were studied in a breast cancer cell line (T47D) expressing estrogen, androgen, and progesterone receptors. A significant enhancement of growth and

Androgen control of cytosol progesterone receptor levels in the MT-W9B transplantable mammary tumor in the rat.

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The effect of androgen on the levels of the cytosol progesterone receptor was examined in the transplantable rat mammary tumor MT-W9B and in the normal uteri of inbred WF rats. Progesterone receptor levels were barely detectable in tumors grown in male WF rats but were increased after castration or

Induction of progesterone receptor with 17 beta-estradiol in human ovarian cancer.

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We utilized a xenograft model of human ovarian cancer to study the ability of estrogen to induce progesterone receptor. Tumor cytosol from 17 beta-estradiol treated oophorectomized animals, but not oophorectomized controls, contained a [3H]ORG 2058 binding moiety of sedimentation coefficient 6-9S.

Progesterone receptor involvement in independent tumor growth in MPA-induced murine mammary adenocarcinomas.

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We have developed a model of hormonal carcinogenesis in BALB/c female mice, in which MPA induced ductal mammary adenocarcinomas, expressing high levels of estrogen and progesterone receptors (ER and PR). A series of tumor lines, retaining both PR and ER expression, were obtained from selected

Medroxyprogesterone acetate inhibits the proliferation of estrogen- and progesterone-receptor negative MFM-223 human mammary cancer cells via the androgen receptor.

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This study demonstrates for the first time, that medroxyprogesterone acetate (MPA) inhibits the proliferation of the estrogen and progesterone receptor negative mammary cancer cell line MFM-223 via the androgen receptor. MPA is a progestin, which is used in the hormonal treatment of disseminated

Micronized estradiol and progesterone therapy in primary, preinvasive endometrial cancer (1A/G1) in young women with polycystic ovarian syndrome.

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BACKGROUND This report presents original, combined mode of treatment of preinvasive endometrial cancer (IA/G1) in young women with polycystic ovarian syndrome. OBJECTIVE The objective of the study was the assessment of treatment with natural female sexual hormones in combination with antidiabetic,

More favorable progesterone receptor phenotype of breast cancer in diabetics treated with metformin.

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The coexistence of type 2 diabetes with breast cancer may result in poorer cancer-related survival due to a number of mediating factors including an alteration of tumor tissue hormonal sensitivity. Previous studies have shown that receptor status of breast tumors in diabetics may be changed;

Blockade of the estrogen induced increase in progesterone receptor caused by propylthiouracil, an anti-thyroid drug, in a transplantable pituitary tumor in rats.

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It is well known that estrogen (E2) induces progesterone receptor (PR) in the uterus and the mammary gland. In MtT/F84, a pituitary tumor, which was established in our laboratory and has been maintained with in vivo passages, we investigated the PR regulation by E2 in relation to the host's

Immunocytochemical staining of progesterone receptor in paraffin sections of human breast cancers.

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Monoclonal antibodies (mAB) against progesterone receptor (PR) and the peroxidase-antiperoxidase (PAP) method to visualize PR in paraffin sections from 68 human breast cancers were used. Ten mAB, which recognize human PR on frozen sections, were tested. Six could detect PR in paraffin sections, with

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