Chordoma Spontaneous Regression After COVID-19.

Chordomas are a low-to-intermediate-grade slow-growing subtype of sarcoma, but show propensity to grow and invade locally with recurrence and metastasis in 10-40% of cases. We describe the first case of spontaneous regression of a solid tumor (histologically and immunohistochemically proven chordoma) after COVID-19. A female patient with clival chordoma underwent occipitocervical fixation prior to tumor resection.

Application of Post-Industrial Leather Waste for the Development of Sustainable Rubber Composites.

The substantial waste generated during the processing of hides and skins as well as at other stages of manufacturing is a recurring issue in the leather industry that this article attempts to address. To investigate the mechanical and thermal characteristics of the resultant composites, this study suggests using leather waste from the bovine leather industry, analyzes the tanning process, and assesses the viability of mixing this waste with natural rubber (TSR-20). Without the inclusion of leather waste, the resulting composites had exceptional tensile strength, surpassing 100% of rubber's strength.

The Effects of Disturbance on Plant-Pollinator Interactions in the Native Forests of an Oceanic Island (Terceira, Azores).

The native biodiversity of oceanic islands is threatened by human-driven disturbance and by the growing number of species introductions which often interfere with natural ecological processes. Here, we aim to evaluate the effect of anthropogenic disturbance on plant-pollinator interactions in the native forest communities of an oceanic island (Terceira, Azores, Portugal). We found that native species predominated in preserved sites compared to disturbed ones and that the extant plant-pollinator interactions were mostly dominated by generalist species.

Chemical Characterization and Antimicrobial Activity of Essential Oils and Nanoemulsions of and .

This study aimed to develop gel nanoemulsions (NEs) of Brazilian essential oils (EOs) from and , as well as to perform chemical characterization and investigate the antimicrobial activity of the EOs and NEs. : The main chemical compounds of EO were curzerene (34.80%) and germacrene B (11.

Bcl-2 and Bcl-xL in Diabetes: Contributions to Endocrine Pancreas Viability and Function.

Diabetes is a chronic metabolic disorder whose prevalence increases every year, affecting more than 530 million adults worldwide. Type 1 (T1D) and type 2 diabetes (T2D), the most common forms of diabetes, are characterized by the loss of functional pancreatic β-cells, mostly due to apoptosis. B-cell leukemia/lymphoma 2 (Bcl-2) and B-cell lymphoma-extra large (Bcl-xL), two anti-apoptotic proteins belonging to the Bcl-2 family, are crucial for regulating the intrinsic pathway of apoptosis.