Phyto-Nanotechnology for the Treatment of Neurodegenerative Disorders

By T. Bhattacharya, G. A. Borges e Soares, H. Chopra, Md. M. Rahman, Z. Hasan, S. S. Swain and Simona Cavalu

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Neurodegenerative diseases and the types of neurons affected. Copyright T. Bhattacharya, Simona Cavalu et al.

The strategies involved in the development of therapeutics for neurodegenerative disorders are very complex and challenging due to the existence of the blood-brain barrier (BBB), a closely spaced network of blood vessels and endothelial cells that functions to prevent the entry of unwanted substances in the brain. The emergence and advancement of nanotechnology shows favourable prospects to overcome this phenomenon. Engineered nanoparticles conjugated with drug moieties and imaging
agents that have dimensions between 1 and 100 nm could potentially be used to ensure enhanced efficacy, cellular uptake, specific transport, and delivery of specific molecules to the brain, owing to their modified physico-chemical features. The conjugates of nanoparticles and medicinal plants, or their components known as nano phytomedicine, have been gaining significance lately in the development of novel neuro-therapeutics owing to their natural abundance, promising targeted delivery to the brain, and lesser potential to show adverse effects. In the present review, the promising application, and recent trends of combined nanotechnology and phytomedicine for the treatment of neurological disorders (ND) as compared to conventional therapies, have been addressed. Nanotechnology-based efforts performed in bioinformatics for early diagnosis as well as futuristic precision medicine in ND have also been
discussed in the context of computational approach. schematic presentation of nano-informatic (nanotechnology and bioinformatics) in present dementia or neuro-disorder research.

Materials 15 00804 g002
Schematic presentation of nano-informatic (nanotechnology and bioinformatics) in present dementia or neuro-disorder research. Copyright T. Bhattacharya, Simona Cavalu et al.

Equal advancements in neurophysiology and neuropathology exploration would help in the advancement in nanotechnology, which can be used to provide CNS recovery and neuroprotection. Accordingly, for utilization of nanotechnology in neural system science and neurosurgery, key factors that require consideration include: (1) breakthrough discoveries and developments in drug science and material science, which can help in the manufacturing of the described methodologies; (2) development and advancement of sub-atomic science, sensory system-based neurophysiology, and neuropathology; and (3) planning and combination of explicit nano-empowered therapies to the CNS, which exploit the initial two factors. As a result, nanotechnology could provide the solution and can offer breakthrough therapies for the management and treatment of NDs and can also be used to bypass the current problem of available neurological therapies i.e., non-specific targeting and lower efficacy rates of drug therapies. Therefore, taken together, neurosurgeons, nervous system specialists, neuroscientists, and drug researchers and architects, should take part in utilizing the power of nanotechnology for drug delivery. Consistent with the profoundly interdisciplinary nature of this space of exploration, it is additionally significant to note that nano-informatics and nanotechnology can also provide innovative headways and progressions that are related to fundamental and clinical neuroscience. Copyright T. Bhattacharya, Simona Cavalu et al.

Full text at https://www.mdpi.com/1996-1944/15/3/804/htm

Exploring Pharmacological Mechanisms of Essential Oils on the Central Nervous System

By

Giselle A. Borges e Soares, Tanima Bhattacharya, Tulika Chakrabarti, Priti Tagde and Simona Cavalu

https://www.mdpi.com/2223-7747/11/1/21

Biological effects of essential oils on the CNS through activation of various components of the brain. Copyright Simona Cavalu et al.

Since ancient times, essential oils (EOs) have been widely used and have been identified as therapeutic agents owing to their pharmacological and psychological properties. They were deemed to be physical, spiritual, and mental healing agents [1,2]. EOs are naturally occurring complex mixtures of volatile odor compounds synthesized as secondary metabolites by plants and are extracted through steam distillation, solvent extraction, maceration, cold press extraction, water distillation, and CO2 extraction. Novel methods that are more efficient and provide higher yields include supercritical fluid extraction, microwave-assisted extraction, and ultrasound [3]. Studies conducted on animals and humans have shown that EOs can produce a variety of CNS targeted pharmacological effects such as anxiolytic effect, neuroprotection, antidepressant effect, anticonvulsant effect, analgesic, and sedative effect, to name a few. As a result, EOs can be used as an adjuvant therapy to prevent and relieve symptoms associated with CNS-based disorders such as insomnia, depression, dementia, Alzheimer’s disease (AD), etc. As they are naturally occurring, they have the added benefit of being non-toxic and safe when utilized correctly at appropriate concentrations, which have been proven through research in the last ten years.

AuNPs as anticancer therapeutics. Copyright Simona Cavalu et al.
Role of essential oils in acetylcholine release and degradation. Copyright Simona Cavalu et al.