Fish are animals present in a wide variety of habitats and are distributed all over the world. The diversity of forms, behaviors and niches associated with the evolutionary characteristics of these animals make them important ...

Although not the primary etiology of diseases such as beta-thalassemia and sickle cell anemia, oxidative damage plays a crucial role in the aggravation of these diseases, contributing to the hemolysis and the short survival ...

Microbes from Amazon river basin represent an unexplored biodiversity, with a huge metabolic potential. This ecosystem receives large amounts of terrestrial organic matter (OM), which promotes heterotrophic microbial growth. ...

Metallothioneins (MT) are non enzymatic proteins with with metal-binding ability. It has been used as a biomarker for environmental pollution by the analysis of its expression in several fish species. The tilapia is a ...

This work presents the study of the effects of an RGD disintegrin from Rhinocerophis alternatus (ancient Bothrops alternatus) in key steps of the metastatic cascade. Disintegrins are cysteine-rich peptides, which have ...

Disintegrins are toxins frequently found in snake venoms. Their biological effects are due to their binding to cell receptors known as integrins. Aiming to isolate new disintegrins from Bothrops alternatus snake, a cDNA ...

The Malpighian tubules in insects play an essential role in osmoregulation, performing transport of ions and fluids during the formation of primary urine, whereas fat body is usually associated with the intermediary ...

Genetic studies of natural populations have long been helping the scientific community and society in general to understand the evolution and conservation of both environments and communities. These studies have helped to ...

Anastrepha is a species-rich genus, with a geographic distribution that covers tropical and subtropical regions of the Americas. Twenty-one species groups have been recognized in this genus, the most economically relevant ...

Phytocystatins are inhibitors of cysteine peptidases found naturally in plants. Sugarcane cystatins are distinguished by their high inhibitory activity and possible biotechnological applications. In this work, a comparative ...