[Coronavirus disease 2019 and pregnancy].

Historically, viral respiratory infections in pregnant women have shown an increase in the risk of morbidity and mortality. With regards to COVID-19, information is limited and a greater risk of severe morbidity or mortality has not been shown, when compared to general population; however, pregnant women with comorbidities such as obesity, type 2 diabetes mellitus and hypertension have shown a greater severity of the disease, consistent with the general population with these comorbidities. The risk of vertical transmission appears to be low: it has not been demonstrated in any case during the current outbreak of COVID-19 in China, nor in previous epidemics of similar coronaviruses (SARS-CoV and MERS-CoV).

[Alpha estrogen receptor polymorphisms and their association with breast density].

Background: In the development of breast cancer (BC), estrogen exposure and the increase in breast density (BD) are two determinant factors for BC risk.

Objective: To identify the relationship between the XbaI and PvuII polymorphisms in the estrogen receptor (ER-alpha) with BD.

Material And Methods: Cross-sectional study which included 225 women, aged 40-65 years, without evident cancer data, who underwent routine mammography for early BC diagnosis in a radiology department.

[In memory of Dr. Arturo Zárate Treviño, pioneer in the study of gynecological endocrinology in Mexico].

No abstract

[Relationship between bone remodeling and metabolism in the elderly].

Background: Recent studies have shown that osteocalcin (OC) is related to not only bone metabolism but also energy metabolism. The aim of the present study was to investigate whether OC was associated with metabolic factors and bone mineral density (BMD) in elderly men.

Methods: A cross-sectional study was done including 122 healthy men aged 60 years or older.

An increase in epicardial fat in women is associated with thrombotic risk.

Introduction: A decrease in fibrinolytic activity and an increase in the thickness of the epicardial adipose tissue have been observed in patients with coronary artery disease. The aim of this study was to determine the association between epicardial adipose tissue and fibrinolytic activity by measuring the concentration of plasminogen activator inhibitor-1 (PAI-1).

Methods: A cross-sectional study was conducted on 56 apparently healthy women aged 45 to 60 years.