Exploring the impact of high salinity and parasite infection on antioxidant and immune systems in Coris julis in the Pityusic Islands (Spain).

Climate change associated with human activities alters marine ecosystems and causes imbalances and abrupt changes in sea conditions. Scarce freshwater resources for human consumption often prompt the construction of desalination plants, which discharge significant amounts of brine into the sea, potentially elevating salinity levels. Furthermore, global trade together with higher temperature and pollution can facilitate the spread of parasites.

Ingestion of microplastics and microfibers by the invasive blue crab Callinectes sapidus (Rathbun 1896) in the Balearic Islands, Spain.

The blue crab Callinectes sapidus Rathbun, 1896 is native to the western coasts of the Atlantic Ocean and is currently considered an invasive species in the Mediterranean Sea. In this study, we examined the stomach contents of C. sapidus to determine the frequency of occurrence of microplastics (MPs) and microfibers (MFs) in the Balearic Islands archipelago in the western Mediterranean Sea.

Microplastic Presence in the Digestive Tract of Pearly Razorfish Causes Oxidative Stress in Liver Tissue.

Plastic pollution in the oceans is a growing problem, with negative effects on exposed species and ecosystems. L. is a very important fish species both culturally and economically in the Balearic Islands.

Evaluating the Presence of Marine Litter in Cetaceans Stranded in the Balearic Islands (Western Mediterranean Sea).

The global distribution and presence of plastic, at all levels of the water column, has made plastic debris one of today's greatest environmental challenges. The ingestion and entanglement of plastic-containing marine debris has been documented in more than 60% of all cetacean species. In light of the increasing pressure on cetaceans, and the diversity of factors that they face, the aim of this work is to provide evidence of the impact of plastic debris on stranded cetaceans, in terms of ingestion and entanglement, in the Balearic Islands for the first-time.

Oxidative stress and behavioral responses of moorish geckos (Tarentola mauritanica) submitted to the presence of an introduced potential predator (Hemorrhois hippocrepis).

Stressful situations induce an increase in the production of reactive oxygen species (ROS) which can lead to molecular damage and alteration of cell function. The introduction of new potential predators induces physiological stress in native fauna. However, behavioral responses have been reported in preys, demonstrating an induction of the defenses against alien species.

Effects of Human Activity on Markers of Oxidative Stress in the Intestine of , with Special Reference to the Presence of Microplastics.

Pollution in the seas and oceans is a global problem, which highlights emerging pollutants and plastics, specifically microplastics (MPs), which are tiny (1 μm to 5 mm) ubiquitous plastic particles present in marine environments that can be ingested by a wide range of organisms. Holothurians are benthic organisms that feed on sediment; therefore, they can be exposed to contaminants present in the particles they ingest. The objective was to evaluate the effects of human activity on through the study of biomarkers.

Microplastic presence in the pelagic fish, Seriola dumerili, from Balearic Islands (Western Mediterranean), and assessment of oxidative stress and detoxification biomarkers in liver.

Microplastics (MPs) are characterized by their high persistence in marine ecosystems, and due to their small size, they can be easily ingested by very diverse organisms. Although the presence of MPs in wild fish is well documented, there is still limited information on their potential to induce adverse effects. Pelagic fish species, because of their wide distribution, are considered good bioindicators for monitoring environmental pollution of marine ecosystems.

First detection of microplastics in Xyrichtys novacula (Linnaeus 1758) digestive tract from Eivissa Island (Western Mediterranean).

Plastic waste and its ubiquity in the oceans represent a growing problem for marine life worldwide. Microplastics (MPs) are ubiquitous in the sea and easily enter food webs. Xyrichtys novacula L.

Ingestion and characterization of plastic debris by loggerhead sea turtle, Caretta caretta, in the Balearic Islands.

Plastic waste has become ubiquitous pollutants in seas and oceans and can affect a wide range of species. For some marine species, plastic debris could pose a considerable threat through entanglement, ingestion, and habitat degradation and loss. Sea turtles are one of the most sensitive species, as their migratory behaviour and multifaceted life cycles make these reptiles especially vulnerable to the negative effects of plastic debris.

Hypotensive Effects of the Triterpene Oleanolic Acid for Cardiovascular Prevention.

Background: Hypertension is a highly prevalent chronic disease worldwide and a major cardiovascular risk factor. Oleanolic acid (3β-hydroxy-olea-12-en-28-oic acid) is a widely distributed bioactive pentacyclic triterpenoid with diverse biological activities such as anti-inflammatory, hepaprotective, anti-diabetic or anti-hypertensive.

Objective: The aim of this study was to review and highlight the available data regarding the antihypertensive activity of oleanolic acid and the described mechanisms of action.

Physiological biomarkers in loggerhead turtles (Caretta caretta) as a tool for monitoring sanitary evolution in marine recovery centres.

The loggerhead turtle, Caretta caretta, is a very vulnerable species to human action which means that numerous specimens arrive at the recovery centres to be treated until they can be returned to the natural environment. The aim of the present study was to investigate the physiological evolution of C. caretta specimens that have entered a recovery centre by using oxidative stress biomarkers.

First report of heavy metal presence in muscular tissue of loggerhead turtles Caretta caretta (Linnaeus, 1758) from the Balearic Sea (Balearic Islands, Spain).

The concentrations of cadmium (Cd), mercury (Hg) and lead (Pb) were determined in muscular tissue of eleven loggerhead turtles (Caretta caretta) from the Balearic Islands (Spain, Western Mediterranean). The metal levels found in the present study were similar or lower than concentrations detected in Andalusia (mainland Spain), Italy, Canary Islands (Spain) or Japan. As the main source of metals in the loggerhead turtle is the diet, low metal burdens could be explained by its opportunistic feeding way.

Long-term exposure to microplastics induces oxidative stress and a pro-inflammatory response in the gut of Sparus aurata Linnaeus, 1758.

Environmental pollution from plastic debris is a major global concern, being a potential threat to marine organisms and ecosystems. The accumulation of microplastics (MPs) in the oceans has notable ecological implications due to their long persistence, their potential ecotoxicity, and their ability to adsorb other pollutants and act as vectors of pathogens. Nevertheless, whereas the number of investigations documenting the presence of MPs in wild fish has increased, less studies have addressed the toxicological effects associated with the ingestion of MPs in long-term laboratory conditions.

Antioxidant Defenses in Wild Growing Halophyte Crithmum maritimum from Inland and Coastline Populations.

Traditional Mediterranean diet includes the halophyte Crithmum maritimum L. (Apiaceae) which can be found in the coastline of the Balearic Islands but also inland. Both areas differed in the environmental conditions, mainly in salinity which can affect the oxidative status of this species.

Potential Anti-inflammatory Effects of Hesperidin from the Genus Citrus.

Background: The benefits of the Mediterranean diet for protecting against many diseases are usually attributed to high consumption of certain foods, characterized by the presence of bioactive substances such as polyphenols. Inflammation plays an important role in the pathogenesis of numerous diseases such as arthritis, allergies or neurodegenerative disorders. Dietary polyphenols constitute a large family of bioactive substances with potential beneficial effects against a broad group of diseases.

Oxidative stress response in the seagrass Posidonia oceanica and the seaweed Dasycladus vermicularis associated to the invasive tropical green seaweed Halimeda incrassata.

The Mediterranean Sea is one of the most affected areas by the presence of invasive species. Halimeda incrassata (J Ellis) JV Lamoroux is newly arrived tropical seaweed in waters of the Mallorca Island (Balearic Islands, Western Mediterranean). The aim was to evaluate the effect of a potential competition between the invasive Halimeda incrassata, the native Posidonia oceanica and Dasycladus vermicularis, by means of antioxidant-related biomarkers in waters of Mallorca.

Cardioprotective Effects of the Polyphenol Hydroxytyrosol from Olive Oil.

Background: The Mediterranean diet includes olive oil as its primary source of fat. This diet is frequently associated to longevity and a lower incidence of chronic diseases due to its biological activities and health effects. Apart from oleic acid, olive oil contains many bioactive components including polyphenols that have been reported to exert antioxidant and anti-inflammatory activities.

Invasive predator snake induces oxidative stress responses in insular amphibian species.

The presence of predators induces physiological stress responses in preys to avoid being captured. A stressful situation enhances reactive oxygen species production with potential damage to macromolecules and alterations in oxidant defences levels. The antioxidant enzyme response of the endemic Majorcan Midwife toad (Alytes muletensis) and the Balearic green toad (Bufotes balearicus) tadpoles against an invasive predator, the viperine snake (Natrix maura) was investigated.