Synthesis of hydroxyapatite from eggshells wet chemical precipitation: a review.

In conjunction with the global trend towards sustainable industry, this review provides a summary of the research endeavors and efforts made in the field of exploiting eggshells in the production of hydroxyapatite (HA). HA is one of the most used biomaterials and has attracted considerable attention over the years towards biomedical applications. As the traditional production of HA from calcium and phosphorus chemical precursors synthetically has bottlenecks of being expensive, complex, time consuming, and results in a low biocompatible product, natural resources have become an attractive alternative option to synthesize HA, with trace elements providing a higher performance.

Purification and characterization of α-galactosidase isolated from Klebsiella pneumoniae in the human oral cavity.

The enzyme α-Galactosidase (α-D-galactoside galactohydrolase [EC 3.2.1.

Supraorbital artery: Anatomical variations and neurosurgical applications.

Background: The supraorbital artery (SOA) originates from the ophthalmic artery in a superomedial aspect of the orbit, exiting through the supraorbital groove to emerge onto the forehead. The SOA has important neurosurgical considerations regarding different approaches and bypasses. The SOA is poorly described in the standard anatomical textbooks.

Opioid growth factor receptor: Anatomical distribution and receptor colocalization in neurons of the adult mouse brain.

The opioid growth factor (OGF) is an endogenous peptide that binds to the nuclear-associated receptor (OGFr), and plays a significant role in the proliferation of developing, renewing, and healing tissues. The receptor is widely expressed in a variety of organs, however its distribution in the brain remains unknown. In this study, we investigated the distribution of OGFr in different brain regions of male heterozygous (-/+ Lepr /J), non -diabetic mice and determined the localization of the receptor in three major brain cell types, astrocytes, microglia, and neurons.