Expanding Arsenal against Ocular Diseases through Nanoemulsion: Success So Far and the Road Ahead.

The eye is a most delicate organ protected by several complex biological barriers that are static and dynamic. The presence of these ocular barriers retards drug absorption from topically applied dosage forms at the conjunctival sac. The efficient topical delivery of the drug into the globe is more difficult to achieve and there is a need to develop a topical formulation that may reduce the use of injections and increase patient compliance with decreased frequency of administration. In the advancements of research in nanotechnology, nanoemulsions can be used as biocompatible carriers to deliver the drug to the ocular cavity. The lipophilic globules can increase the solubility of hydrophobic cargos which provides increased permeation ability and ocular bioavailability which can sustain drug release and corneal retention. Because of their small size, these formulations do not cause blurring of vision. Nanoemulsions (NEs) over the past decade have been used to treat several ocular diseases in the anterior eye segment. This review summarizes the economic burden, pathology of ocular diseases, formulation considerations for ocular formulations, and recent advances of these NEs as effective carriers for ocular drug delivery highlighting their performance in pre-clinical studies.

Acetylresveratrol (AC-Res): An Evolving Frontier in Modulating Gene Expression.

BACKGROUND: Acetylresveratrol (AC-Res), to date, is a powerful stilbene phytoalexin generated organically or as a component of a plant's defensive system, is a significant plant phenolic chemical portion and is investigated as a therapy option for a number of disorders. Owing to its inadequate stabilisation and considerable conformation rigidity, the utility of AC-Res as a medication is limited. OBJECTIVE: The current review article outlined the structure of AC-Res, their methods of activity, and the latest technological progress in the administration of these molecules. It is conceivable to deduce that AC-Res has a variety of consequences for the cellular functions of infected cells. METHODS: The literature survey for the present article was gathered from the authentic data published by various peer-reviewed publishers employing Google Scholar and PubMedprioritizing Scopus and Web of Science indexed journals as the search platform focusing on AC-Res pharmacological actions, particularly in the English language. RESULT: Despite its extensive spectrum of biological and therapeutic applications, AC-Res has become a source of increasing concern. Depending on the researchers, AC-Res possesses radioprotective, cardioprotective, neurological, anti-inflammatory, and anti-microbial potential. It also has anti-cancer and antioxidant properties. CONCLUSION: To avoid non-specific cytotoxicity, optimization efforts are presently emphasizing the possible usage of AC-Res based on nanocrystals, nanoparticles and dendrimers, and nanocrystals. Finally, while using AC-Res in biology is still a way off, researchers agree that if they continue to explore it, AC-Res and similar parts will be recognized as actual possibilities for a variety of things in the next years.

Opening avenues for treatment of neurodegenerative disease using post-biotics: Breakthroughs and bottlenecks in clinical translation.

Recent studies have indicated the significant involvement of the gut microbiome in both human physiology and pathology. Additionally, therapeutic interventions based on microbiome approaches have been employed to enhance overall health and address various diseases including aging and neurodegenerative disease (ND). Researchers have explored potential links between these areas, investigating the potential pathogenic or therapeutic effects of intestinal microbiota in diseases. This article provides a summary of established interactions between the gut microbiome and ND. Post-biotic is believed to mediate its neuroprotection by elevating the level of dopamine and reducing the level of α-synuclein in substantia nigra, protecting the loss of dopaminergic neurons, reducing the aggregation of NFT, reducing the deposition of amyloid ß peptide plagues and ameliorating motor deficits. Moreover, mediates its neuroprotective activity by inhibiting the inflammatory response (decreasing the expression of TNFα, iNOS expression, free radical formation, overexpression of HIF-1α), apoptosis (i.e. active caspase-3, TNF-α, maintains the level of Bax/Bcl-2 ratio) and promoting BDNF secretion. It is also reported to have good antioxidant activity. This review offers an overview of the latest findings from both preclinical and clinical trials concerning the use of post-biotics in ND.