The SARS-CoV-2 outbreak is the COVID-19 disease, which has caused massive health devastation, prompting the World Health Organization to declare a worldwide health emergency. The corona virus infected millions of people worldwide, and many died as a result of a lack of particular medications. The current emergency necessitates extensive therapy in order to stop the spread of the coronavirus. There are various vaccinations available, but no validated COVID-19 treatments. Since its outbreak, many therapeutics have been tested, including the use of repurposed medications, nucleoside inhibitors, protease inhibitors, broad spectrum antivirals, convalescence plasma therapies, immune-modulators, and monoclonal antibodies. However, these approaches have not yielded any outcomes and are mostly used to alleviate symptoms associated with potentially fatal adverse drug reactions. Nanoparticles, on the other hand, may prove to be an effective treatment for COVID-19. They can be designed to boost the efficacy of currently available antiviral medications or to trigger a rapid immune response against COVID-19. In the last decade, there has been significant progress in nanotechnology. This review focuses on the virus’s basic structure, pathogenesis, and current treatment options for COVID-19. This study addresses nanotechnology and its applications in diagnosis, prevention, treatment, and targeted vaccine delivery, laying the groundwork for a successful pandemic fight.

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Calendula officinalis is a short-lived aromatic herbaceous perennial plant. According to scientific literature, Calendula officinalis can also boost the wound healing activity. While the precise means it does is still unclear, it was assumed that the herb would increases the blood flow to the wound area, therefore supplying oxygen and nutrients necessary for tissue regeneration. The objective of the review is to understand and explore the relevant phytochemical and pharmacological information which will enhance it effective wound healing mechanism.  The data were identified using PubMed, Google Scholar, Scopus and bibliographic reviews of recent and old articles from an English literature search. After independent analysis by co-authors of the identified articles, data were analysed and extracted for the stated purpose. Calendula officinalis with its high quantity of flavonoids, it can help to minimize inflammation and speed up the healing process. Additional  usage for Calendula officinalis is that it can be a calming ointment, wash or tincture , since it can help to alleviate irritated wounds and minimize swelling and inflammation. Wound healing is a complex process, and Calendula officinalis have been historically used to treat minor wounds, skin irritation and minor burns. Data from large comparative clinical trials are needed before routine use can be recommended. Pharmacists and clinicians can effectively address patient questions about wound care and herbal therapies to help promote wound care practices that encourages wound healing and minimize poor outcomes such as infection or scaring.

The term neurodegenerative disease means the loss of neuronal cells in the brain, including Alzheimer's disease, Parkinson's disease, Multiple sclerosis, and Huntington's disease. It is one of the most common types of disease associated with elevated rates of mortality and morbidity worldwide. At the same time, modern allopathic medicines have a large number of synthetic chemicals for the symptomatic treatment and control of these diseases. These drugs have failed miserably due to clinical insufficiency and debilitating adverse effects. In the past decade, natural ingredients have gained notable interest in the prevention and treatment of neurodegeneration due to their powerful anti-inflammatory and anti-oxidant properties with minimal side effects. However, there is also an issue of safety and effectiveness due to the absence of an ample amount of research findings. The most common cellular mechanism for every neurodegenerative disorder is neuroinflammation and oxidative stress. Several preclinical and clinical studies conducted across the world have demonstrated that different bioactive compounds of herbal origin can potentially arrest these processes to prevent or treat neurodegeneration and can be developed into promising pharmaceutical formulations. This article discusses and analyses the various herbal compounds, such as Allium sativum, Camella sinensis, Centella asiatica, Coriandrum sativum, Crocus sativus, Glycyrrhiza glabra, and Morus alba used for phytotherapy of neurodegenerative diseases by combining recent in vitro and in vivo models.

Parkinson's disease (PD) is a complex multi-factorial, neurodegenerative disease characterized by neurodegeneration of dopaminergic neurons in the substantia nigra (SN) of the ventral midbrain area. Loss of dopamine (DA) supply induces an imbalance of multiple neurotransmitter networks in different parts of the brain. This contributes to many motor and non-motor symptoms in PD. The main goal of modern allopathic medicine is to restore DA function with synthetic levodopa (L-DOPA) and DA agonist, which has been partially effective; however, there are still several inadequacies and adverse effects that patients often cannot cope with. In the field of herbal medicine, extensive studies on bioactive phytocompounds have shown that it has immense potential as a neuroprotective therapy for neurodegenerative disorders, such as PD. Bioactive phytocompounds are very promising because they have minimal side effects and very high anti-inflammatory, anti-oxidant, and anticholinesterase activity. Recent preclinical studies suggest that several bioactive phytocompounds can be developed into pharmaceutical formulations for the treatment of PD. Ayurvedic medicines have been used in many countries and particularly in India since ancient times to prevent or cure PD. This article focuses on the recent evidence-based neuroprotective activity of medicinal plants like Mucuna pruriens, Curcuma longa, Zingiber officinale, Bacopa monnieri, Nardostachys jatamansi, Withania somnifera, and Silybum marianum in in vivo and in vitro PD research models.