All posts by SleepRhythm

Plasma Ammonia Levels Over the Course of a Hospitalisation for Overt Hepatic Encephalopathy

Erminelli D, Mangini C, Gapeni D, Zarantonello L, Montagnese S Liver International Background & aims: The role of ammonia in the assessment of Overt Hepatic Encephalopathy (OHE) remains debated. The aim of the present study was to assess the time course of ammonia levels in relation to the severity and duration of an episode of OHE […]

Cold-Sensing TRP Channels and Temperature Preference Modulate Ovarian Development in the Model Organism Drosophila melanogaster

Andreatta G, Montagnese S, Costa R International Journal of Molecular Sciences (IJMS) Temperature is perceived primarily via transient receptor potential (TRP) channels, which are integral to the molecular machinery sensing environmental and cellular signals. Functional evidence of TRP channels’ involvement in regulating cold-induced developmental/reproductive responses remains scarce. Here, we show that mutations affecting cold-sensing TRP […]

Synchronization of women’s menstruation with the Moon has decreased but remains detectable when gravitational pull is strong

Helfrich-Förster C, Domenie ED, Mitesser O, Hovestadt T, Ferlin A, Wehr TA, Costa R, Montagnese S Sci Adv To increase reproductive success, many species synchronize reproductive behavior with a particular phase of the lunar cycle. The human menstrual cycle has also a period close to that of the lunar cycle, and recent studies suggest a […]

Altered blood-brain barrier permeability is associated with abnormal distant connectivity and regional homogeneity in covert hepatic encephalopathy – a cross sectional study

Chaganti J, Zeng G, Patil A, Lockart I, Dellalana M, Montagnese S, Brew B, Danta M Hepatology Background: Covert hepatic encephalopathy (CHE) is clinically underrecognized. Using MRI, we explored the relationship between functional connectivity as a marker of executive dysfunction and the blood-brain barrier permeability marker KTRANS in a cross-sectional cohort of covert HE (CHE), no […]

Stuck in time: The slow march of circadian medicine and how to speed it up

Cajochen C, Montagnese S J Sleep Res While there is considerable enthusiasm for the translational and clinical applications of chronobiology, their actual implementation is not progressing as rapidly as might be expected. Here we discuss the possibility that this may relate to a combination of conceptual, methodological, evidentiary and training challenges. These are compounded by […]

Potential bidirectional communication between the liver and the central circadian clock in MASLD

Gachon F, Bugianesi E, Castelnuovo G, Oster H, Pendergast JS, Montagnese S NPJ Metab Health Dis Most aspects of physiology and behaviour fluctuate every 24 h in mammals. These circadian rhythms are orchestrated by an autonomous central clock located in the suprachiasmatic nuclei that coordinates the timing of cellular clocks in tissues throughout the body. […]

Activation of the kynurenine pathway identified in individuals with covert hepatic encephalopathy

Zeng G, Krishnamurthy S, Staats Pires A, Guller A, Chaganti J, Tun N, Lockart I, Montagnese S, Brew B, Guillemin GJ, Danta M, Heng B Hepatol Commun Background: HE is a neuropsychiatric complication of liver disease characterized by systemic elevation in ammonia and proinflammatory cytokines. These neurotoxins cross the blood-brain barrier and cause neuroinflammation, which can […]

End-procedural adherence to recommended hemodynamic targets does not improve the outcome of elective TIPS in patients with cirrhosis

Roccarina D, Saltini D, Adotti V, Rosi M, Senzolo M, Nardelli S, Bianchini M, Biribin L, Caporali C, Margherita F, Ragozzino L, Guasconi T, Casari F, Gioia S, Campani C, Prampolini F, Ingravallo A, Gitto S, Aspite S, Arena U, Citone M, Gaggini M, Ridola L, Barbiero G, De Masi S, Riggio O, Merli M, […]

Sleep timing in flies from “adolescence” to adulthood

Domenie ED, Cusumano P, Montagnese S, Costa R Fly (Austin) The aim of the present study was to assess sleep timing in Drosophila melanogaster at different ages, within the setting of an enforced schedule of varying light-dark stimuli, simulating light exposure variations between four typical office working days and one free day spent outside by a human, for a total of […]