Relación del síndrome metabólico con el cáncer de mama posmenopáusico / Relationship Between Metabolic Syndrome and Postmenopausal Breast Cancer

INTRODUCCIÓN: El síndrome metabólico (SM) se asocia con un aumento del riesgo de diabetes mellitus (DM) y cardiopatía coronaria. El SM también puede estar asociado con un aumento del riesgo de algunos cánceres frecuentes. El objetivo de este estudio fue determinar la relación entre el SM y el cáncer de mama en mujeres posmenopáusicas. MÉTODOS: Estudio de cohortes prospectivo de mujeres posmenopáusicas. Dicha cohorte se dividió en dos grupos: el «grupo con un diagnóstico benigno», formado por mujeres a las cuales se les realizó un seguimiento por cribado del cáncer de mama, y el «grupo con un tumor maligno», formado por pacientes con cáncer de mama diagnosticado por biopsia. Se analizaron como variables a estudio la edad, peso, altura, índice de masa corporal (IMC), perímetro abdominal, glucosa sérica, LDL, HDL y niveles de insulina. Se utilizó la fórmula del modelo homeostático HOMA-IR para evaluar la resistencia a la insulina. Las diferencias se consideraron estadísticamente significativas cuando p < 0,05. RESULTADOS: Doscientas mujeres con una media de edad de 61,5 ± 9,6 años (rango: 37-93) se inscribieron en el estudio que consta de 150 (75%) pacientes en el grupo con un diagnóstico benigno y 50 (25%) pacientes en el grupo con un tumor maligno. El IMC y el perímetro abdominal fueron mayores en el grupo con un tumor maligno (p < 0,05). La incidencia de DM y SM fue mayor en el grupo con un tumor maligno (p < 0,005). En el grupo con un tumor maligno se detectaron incidencias mucho más altas en relación con los niveles glucémicos en ayunas > 100 mg/dl, los niveles de insulina > 10 mUI/l y puntuaciones en el HOMA-IR > 2,7 (p < 0,05). CONCLUSIONES: Existe relación entre el SM y el cáncer de mama posmenopáusico. Son necesarios más estudios para establecer métodos de protección para la prevención del cáncer de mama en mujeres con SM

INTRODUCTION: Metabolic syndrome is associated with an increased risk of diabetes mellitus (DM) and coronary heart disease. It may also be associated with a higher risk of some common cancers. The objective of this study was to determine the relationship between metabolic syndrome and breast cancer in postmenopausal women. METHODS: We present a prospective cohort study of postmenopausal women. This cohort was divided into two groups: the «benign diagnosis group», including women who were studied after breast cancer screening; and the «malignant tumor group», including patients with breast cancer that had been diagnosed by biopsy. Age, weight, height, body mass index (BMI), abdominal perimeter, serum glucose, LDL, HDL and insulin levels were analyzed as variables under study. The HOMA-IR homeostatic model formula was used to assess insulin resistance. The differences were considered statistically significant when P < .05. RESULTS: Two hundred women with a mean age of 61.5±9.6 (range: 37-93) were enrolled in the study, consisting of 150 (75%) patients with a benign diagnosis and 50 (25%) patients with a malignant tumor. BMI and abdominal perimeter were higher in the group with a malignant tumor (P < .05). The incidence of DM and metabolic syndrome was higher in the malignant tumor group (P < .005). In the malignant tumor group, much higher incidences correlated with fasting glycemic levels > 100 mg/dL, insulin levels > 10 mIU/L and HOMA-IR scores > 2.7 (P < .05). CONCLUSIONS: There is a relationship between metabolic syndrome and postmenopausal breast cancer. More studies are needed to establish methods for the prevention of breast cancer in women with metabolic syndrome

Relationship Between Metabolic Syndrome and Postmenopausal Breast Cancer. / Relación del síndrome metabólico con el cáncer de mama posmenopáusico.

INTRODUCTION: Metabolic syndrome is associated with an increased risk of diabetes mellitus (DM) and coronary heart disease. It may also be associated with a higher risk of some common cancers. The objective of this study was to determine the relationship between metabolic syndrome and breast cancer in postmenopausal women. METHODS: We present a prospective cohort study of postmenopausal women. This cohort was divided into two groups: the «benign diagnosis group¼, including women who were studied after breast cancer screening; and the «malignant tumor group¼, including patients with breast cancer that had been diagnosed by biopsy. Age, weight, height, body mass index (BMI), abdominal perimeter, serum glucose, LDL, HDL and insulin levels were analyzed as variables under study. The HOMA-IR homeostatic model formula was used to assess insulin resistance. The differences were considered statistically significant when P<.05. RESULTS: Two hundred women with a mean age of 61.5±9.6 (range: 37-93) were enrolled in the study, consisting of 150 (75%) patients with a benign diagnosis and 50 (25%) patients with a malignant tumor. BMI and abdominal perimeter were higher in the group with a malignant tumor (P<.05). The incidence of DM and metabolic syndrome was higher in the malignant tumor group (P<.005). In the malignant tumor group, much higher incidences correlated with fasting glycemic levels >100mg/dL, insulin levels >10mIU/L and HOMA-IR scores >2.7 (P<.05). CONCLUSIONS: There is a relationship between metabolic syndrome and postmenopausal breast cancer. More studies are needed to establish methods for the prevention of breast cancer in women with metabolic syndrome.