A nebular origin for the persistent radio emission of fast radio bursts.

Fast radio bursts (FRBs) are millisecond-duration, bright (approximately Jy) extragalactic bursts, whose production mechanism is still unclear. Recently, two repeating FRBs were found to have a physically associated persistent radio source of non-thermal origin. These two FRBs have unusually large Faraday rotation measure values, probably tracing a dense magneto-ionic medium, consistent with synchrotron radiation originating from a nebula surrounding the FRB source.

Diet and Glycemic Index in Children with Type 1 Diabetes.

In children with type 1 diabetes, a healthy lifestyle is important to control postprandial glycemia and to avoid hyperglycemic peaks that worsen the inflammatory state of vessels and tissues. Glycemic index and glycemic load are two important indexes which assess the quality and quantity of foods consumed during meals. The main macronutrients of the diet have a different effect on postprandial blood glucose levels, so it is important that diabetic children consume foods which determine a slower and steadier glycemic peak.

Impact of glucose metabolism on the developing brain.

Glucose is the most important substrate for proper brain functioning and development, with an increased glucose consumption in relation to the need of creating new brain structures and connections. Therefore, alterations in glucose homeostasis will inevitably be associated with changes in the development of the Nervous System. Several studies demonstrated how the alteration of glucose homeostasis - both hyper and hypoglycemia- may interfere with the development of brain structures and cognitivity, including deficits in intelligence quotient, anomalies in learning and memory, as well as differences in the executive functions.

Stress cardiomyopathies beyond Takotsubo: does a common catecholaminergic pathophysiology fit all?

Diagnostic criteria for Takotsubo cardiomyopathy (TTC) still remains a matter of debate. The similarities between cardiac dysfunction which complicates cerebrovascular events and 'typical' TTC let us hypothesize that the current diagnostic criteria of TTC need to be widened. Moreover, clinical, histological and scintigraphic similarities have been robustly reported between TTC and other Takotsubo-like syndromes, and we agree that central to this unifying hypothesis is a catecholamine surge which triggers the abnormality in left ventricular contraction.