Effect of perioperative magnesium sulfate on neurological outcome in neurosurgical patients: a randomized double-blind controlled trial.

Background: Supplemental magnesium sulfate has a potential neuroprotective role in acute brain injury. It is safe, widely available, and inexpensive. This study evaluated the effect of perioperative intravenous administration of magnesium sulfate on brain damage caused by neurosurgery.

Disease from leaves to landscapes: viral hotspots are determined by spatial arrangement and phytochemistry of host plants in specialist caterpillars.

Although infectious diseases play a critical role in population regulation, our knowledge of complex drivers of disease for insects is limited. We conducted a field study on Baltimore checkerspot caterpillars (), chemical specialists on plants containing iridoid glycosides (IGs), to investigate the roles of host plant, phytochemistry, ontogeny and spatial associations in determining viral prevalence. We analysed individuals for viral presence and loads, quantified leaf IG concentrations from their native and novel host plants, and sequestered IGs in caterpillars.

High Host Preferences in Epiphytic Lichens Across Diverse Phorophyte Species in the Mediterranean Region.

Contrary to the assumption that epiphytic lichens, which obtain water and nutrients from the atmosphere, do not exhibit host species preference, this notion is challenged by the limited number of studies that cover a wide geographical range and diverse phorophyte species (hereafter referred to as "host species"). To investigate this assumption, we evaluated the host preference of 709 epiphytic lichen species across the Mediterranean basin, examining 72 host species. The research is based on field studies conducted by the authors, supplemented with bibliographic records to expand the study area and the number of host species.

Perioperative transfusion management in craniotomies: A national survey, a starting point for the evaluation of improvements in health care.

Objective: To assess the perioperative management of haemostasis and transfusion practices in adult patients undergoing craniotomies.

Method: Online questionnaire addressed to Spanish anaesthesiologists and promoted by the Neurosciences and Haemostasis, Transfusion Medicine and Fluid Therapy Sections of SEDAR. The questionnaire was sent by email and social media, and was active between June and October 2022.

(Dis)connecting the Globe Through Water-Driven Ecological and Biogeochemical Corridors in the Polar-Alpine Biome.

Global change is causing the melting of ice masses, permafrost thawing, and the shrinking of glaciers, thereby reshaping nature's rhythms. Longer thaw phases and more frequent dry periods are transforming water-driven transitional ecosystems (e.g.