The nail unit is the largest cutaneous musculo-skeletal appendage. The management of nail disorders is an onerous task owing to the disease manifestations and anatomical structure of the nail plate. The topical treatment of nail infections/disorders has been a centerpiece of nail research in the past few decades as it offers a much safer and focused alternative to conventional oral therapy. However, transungual delivery had its challenges. This necessitated a lookout for novel approaches that enhanced treatment efficacy and reduced treatment time. Moreover, curing the nail condition using topical delivery has been challenging due to the lack of a validated animal model to determine the efficacy of the formulation and to establish a mathematical model that can help in predicting the desirable attributes of the formulation and permeation of various molecules through the nail plate. This review is based on publications retrieved by a selective search in PubMed. The purpose of this review is to provide an overview of nail anatomy and its disorders, factors affecting nail delivery, diagnostic procedures, current approaches, and promising approaches to treat nail infections/disorders including nail lacquers and the role of permeation enhancers, in-vitro models. This review also covers current available treatments and treatments under clinical trial. Keywords: Musculo-skeletal, Nail infection, Transungual, Mathematical model, In-vitro models.

Cold atmospheric plasma (CAP) is a novel technology with boundless significance that can be used in the medical sector that offers noninvasive in-vivo applications without damaging the living tissues. CAPs can be obtained by curtailing the concentration of high-energetic electrons per phase and by freezing molecules/atoms (devoid of charge) in plasma utilizing gas circulation and atmospheric air, which includes a variety of charged and neutral reactive entities, UV rays, electric currents, and fields, etc. that have an influence on cellular material in a multitude of diverse manners. Reactive oxygen species (ROS) and reactive nitrogen species (RNS), produced by the plasma, essentially cause biological and therapeutically advantageous plasma effects. CAP plasma has several important biological functions, including the deactivation of pathogens, induction of tissue restoration and cell propagation, the annihilation of cells by triggering apoptosis, etc. Several fundamental concepts are defined, even if the precise process of the effect of plasma on biomolecules is still not properly identified. Depending on the biological synthesis of RNS and ROS in reactions to plasma emissions, the present review described several aspects of plasma therapy in neuroscience, particularly in anti-glioblastoma, neuro-differentiation, and neuroprotection and also the various applications of CAP in medical fields where it is used in the therapy of SARS-CoV-2, cancer therapy, and chronic and acute wounds. Furthermore, the proliferation in stem cells, dental medicines, dermatology, and a brief insight into CAP devices and their risk factors was highlighted.

Neurological disorders (NDDs) are diseases that affect the central and peripheral nervous systems. Gradual malfunction and destruction of the neurons or the nerve cells characterize them. Every year, NDDs affect millions of people worldwide. Over the years, several neuromodulatory techniques have been introduced to improve the quality of life for those affected by NDDs. NDDs are chronic and incurable conditions, however, bioactive substances derived from medicinal plants have emerged as the greatest choice for their prevention and treatment. Literature evidences several benefits of plant metabolites as alternative medicines for the prevention and treatment of NDDs. Numerous investigations have shown plant metabolites to possess beneficial biological effects because of their qualities, which include but are not limited to anti-inflammatory, antioxidant, and neuroprotective actions. Practices of folk medicine and several studies have also guided many phytopharmacological interventions toward the treatment of NDDs. This review aims to highlight secondary metabolites (alkaloids, flavonoids, steroids, terpenoids) of plants with neuroprotective action that could potentially play an important role in the prevention and management of NDDs.