Effects of wildfire ash on the fatty acid and sugar profiles of bivalves - A comparative study of a freshwater and a marine species.

Wildfires can impact both freshwater and marine ecosystems through post-fire runoff, but its effects on bivalves, particularly those living in marine habitats, remain largely overlooked. While evidence exists that wildfire ash can alter the fatty acid (FA) and sugar profiles of aquatic biota, its influence on the biochemical profiles of bivalves have not been addressed to date. This study aimed to assess the effects of ash exposure on the FA and sugar profiles of two bivalve species used for human consumption: a freshwater clam (Corbicula fluminea) and a marine bivalve (Cerastoderma edule), additionally evaluating potential effects on their nutritional value.

Cardiac Myosin Inhibitors for Obstructive Hypertrophic Cardiomyopathy: A Meta-analysis of Randomized Placebo-Controlled Trials.

Background: Cardiac myosin inhibitors (CMI) have emerged as the first disease-specific, noninvasive therapy with promising results in patients with hypertrophic cardiomyopathy. However, its role in obstructive hypertrophic cardiomyopathy (oHCM) remains uncertain, especially in secondary endpoints of randomized controlled trials (RCTs).

Methods: We systematically searched PubMed, Embase, Web of Science, and Clinicaltrials.

Acute Ecotoxicity and Bioconcentration Tests for Se(IV) in Nile tilapia ().

Selenium is one of the most important trace element micronutrients for the global biota, mainly due to its role in protecting against oxidative stress. However, this element can become toxic when present at concentrations slightly higher than those needed for metabolic purposes. It can be transferred through the food chain toward higher trophic levels, with bioaccumulation and biomagnification leading to possible toxicity.

A modified petal and stamen dimorphism interact to enhance pollen placement by a buzz-pollinated flower.

Background: Floral adaptations supposedly favour pollen grains to cross the numerous barriers faced during their journey to stigmas. Stamen dimorphism and specialized petals, like the cucculus in the Cassieae tribe (Fabaceae), are commonly observed in flowers that offer only pollen as a resource for bee pollinators. Here, we experimentally investigated whether the stamen dimorphism and cucculus enhance pollen placement on the bee's body.