objectives: in traditional medicine salvia officinalis (sage) has been used as menstrual cycle regulator. in the present study the effects of sage extract on breast tissue were examined. materials and methods: fourteen female rats were divided into two groups: 1) distilled water-treated rats (con) that were gavaged with 1ml distilled water and 2) saliva officinalis hydroalcoholic extract (she)-...

abstractepidermal inclusion cysts are uncommon in the breast, but the consequences can besevere when these cysts occur in the breast parenchyma. here, we report two suchcases. the patient in case 1 was an 37-year-old woman with a 3-cm palpable mass inthe right breast. mammography revealed a round and smoothly outlined mass, whichindicated a benign tumor, and sonography showed an irregularly sha...

Transforming growth factor–B (TGF-B) isoforms are growth factors that function physiologically to regulate development, cellular proliferation, and immune responses. The role of TGF-B signaling in mammary tumorigenesis is complex, as TGF-B has been reported to function as both a tumor suppressor and tumor promoter. To elucidate the role of TGF-B signaling in mammary gland development, tumorigen...

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The Neu (ErbB2, HER2) member of the epidermal growth factor receptor family is implicated in many human breast cancers. We have tested the importance of increased angiogenic signaling in the NeuYD [mouse mammary tumor virus (MMTV)-Neu(ndl)-YD5] mammary tumor model. Transgenic mice expressing vascular endothelial growth factor (VEGF)(164) from the MMTV promoter were generated. These mice express...

Mouse mammary tumor virus (MMTV) infection establishes chronic germinal centers and a lifelong neutralizing Ab response. We show that removal of the draining lymph node after establishment of the germinal center reaction led to complete loss of neutralizing Abs despite comparable infection levels in peripheral lymphocytes. Importantly, in the absence of neutralization, only the exocrine organs ...

BACKGROUND Mammary tumors are the most common tumor type in intact female dogs. Recently, the breast cancer 2 early onset (BRCA2) gene was proposed to be associated with tumorigenesis in dogs. The expression level of BRCA2 is important for its DNA repair function in mammalian cells, and its expression level is linked to tumorigenesis in mammary tissue. However, the expression of canine BRCA2 in...

Objectives: In traditional medicine Salvia officinalis (sage) has been used as menstrual cycle regulator. In the present study the effects of sage extract on breast tissue were examined. Materials and Methods: Fourteen female rats were divided into two groups: 1) Distilled water-treated rats (Con) that were gavaged with 1ml distilled water and 2) Saliva officinalis hydroalcoholic extract (SHE)-...

Proper function of the p53 tumor suppressor gene is critical for inhibiting tumor development in a broad spectrum of tissues. Although the mammary gland is highly susceptible to tumor formation, the functional status of p53 in the normal tissue had not been investigated. Therefore, expression, localization, and activity of p53 were examined in normal mammary tissues. High levels of p53 protein ...

Overexpression of human cyclooxygenase 2 (COX-2) in the mammary glands of transgenic mice induces tissue-specific tumorigenic transformation. However, the molecular mechanisms involved are not yet defined. Here we show that COX-2 expressed in the epithelial cell compartment regulates angiogenesis in the stromal tissues of the mammary gland. Microvessel density increased before visible tumor gro...