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Detection of Progesterone Receptor as a Method of Diagnosing Mammary Cancer in Female Dogs

Open Journal of Veterinary Medicine 2024年第8期14卷 217-227页

作者： José de Jesús Vázquez Pérez Angel Ramses Figueroa Hernandez jorge peregrina sandoval Guillermo Nolasco Rodríguez Manuel Rosales Cortés Department of Veterinary Medicine University Center of Biological and Agricultural Sciences University of Guadalajara Zapopan Mexico Department of Cellular and Molecular Biology University Center for Biological and Agricultural Sciences University of Guadalajara Zapopan Mexico

Introduction: Canine mammary gland tumor is the most common type of neoplasia in non-ovariectomized bitches. Approximately 50% of tumors are malignant. Neoplasms originating from the mammary gland represent the most common neoplastic disease in canines in Veterinary Medicine. Aim: Relate the expression of the receptor to progesterone (PR) with the tumor stage of canine mammary carcinoma. Material and Methods: Analytical-cross-sectional study, samples of paraffinized tumor tissue obtained from 30 canine patients with breast cancer were used. The expression of PR was performed by immunohistochemical labeling, using murine anti-PR (anti-PR Biocare brand). A descriptive analysis was carried out with the results using the SPSS program. Results: The predominant histological subtype of breast cancer was tubular carcinoma with 12 patients, followed by papillary cystic carcinoma with 6 patients, solid carcinoma 5, carcinosarcoma 4 and comedocarcinoma 3. There was a significant trend between breast cancer subtypes, histological grade G1. Among the histopathological findings, the degree of invasion is related to the presence of tumor cells in adjacent lymph nodes, which is why it is a prognostic indicator. The expression of PR in the tumor tissue samples it was 42.8% positive versus 57.14% negative, of which 75% correspond to G1, 8.3% to G2 and 16.6% to G3. With respect to the relationship of the expression of PR vs type of tumor, it was found that 50% correspond to tubular carcinoma, 33.3% to papillary cystic carcinoma, 8.3% to solid carcinoma and 8.3% to comedocarcinoma. Conclusion: The hormone receptor was negative in more than half of the patients and histological grade is significantly associated with tumor subtypes, this study emphasizes the need to introduce receptor testing into our routine clinical practice to offer the best treatment for breast cancer.

关键词： Cancer Mammary Gland Progesterone Immunohistochemistry Progesterone Membrane Receptor Component 1 (PGRMC 1)

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Transboundary Wetlands in U.S.A.-Mexico Watershed

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地学前缘 2009年第S1期16卷 34-34页

作者： Mauricio peregrina Llanes Alejandro Hinojosa Corona Thomas Kretzschmar jorge Ramírez Hernndez Geology Department Earth and Environmental Sciences Universidad Autónoma de Baja California UABC

The Colorado River Delta has undergone a fast and drastic modification by human *** 1930’s decade,agriculture plays a very important role in the development of the region changing land & water use in Mexicali and Imp... 详细信息

关键词： irrigation wetlands Colorado Delta groundwater

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