scholarly journals Mirror Movements in Acquired Neurological Disorders: A Mini-Review

2021 ◽  
Vol 12 ◽  
Author(s):  
Ping Liu ◽  
Yuan Yuan ◽  
Ning Zhang ◽  
Xiaoyan Liu ◽  
Lihua Yu ◽  
...  
Keyword(s):  
Neurological Disorders ◽  
Neurological Diseases ◽  
Underlying Mechanism ◽  
Contralateral Limb ◽  
Extrapyramidal Disorders ◽  
Mirror Movements ◽  
Neurological Signs ◽  
Age Related ◽  
Lateral Sclerosis ◽  
Congenital Syndrome

Mirror movements (MMs) are specifically defined as involuntary movements occurring on one side of homologous muscles when performing unilateral movements with the contralateral limb. MMs have been considered a kind of soft neurological signs, and the persistence or reappearance of MMs in adults is usually pathologic. In addition to some congenital syndrome, MMs have been also described in age-related neurological diseases including pyramidal system diseases (e.g., stroke, amyotrophic lateral sclerosis) and extrapyramidal disorders (e.g., Parkinson's disease, essential tremor). With the advances in instrumentation and detection means, subtle or subclinical MMs have been deeply studied. Furthermore, the underlying mechanism is also being further elucidated. In this mini-review, we firstly discuss the MM examination means, and then review the literature regarding MMs in individuals with acquired neurological disorders, in order to further understand the pathogenesis of MMs.

scholarly journals Implication of ferroptosis in aging

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Maryam Mazhar ◽  
Ahmad Ud Din ◽  
Hamid Ali ◽  
Guoqiang Yang ◽  
Wei Ren ◽  
...  
Keyword(s):  
Cell Death ◽  
Neurological Disorders ◽  
Accelerated Aging ◽  
Underlying Mechanism ◽  
Toxic Chemicals ◽  
Whole Body ◽  
Regulated Cell Death ◽  
Age Related ◽  
The Subject ◽  
Conventional Cell

AbstractLife is indeed continuously going through the irreversible and inevitable process of aging. The rate of aging process depends on various factors and varies individually. These factors include various environmental stimuli including exposure to toxic chemicals, psychological stress whereas suffering with various illnesses specially the chronic diseases serve as endogenous triggers. The basic underlying mechanism for all kinds of stresses is now known to be manifested as production of excessive ROS, exhaustion of ROS neutralizing antioxidant enzymes and proteins leading to imbalance in oxidation and antioxidant processes with subsequent oxidative stress induced inflammation affecting the cells, tissues, organs and the whole body. All these factors lead to conventional cell death either through necrosis, apoptosis, or autophagy. Currently, a newly identified mechanism of iron dependent regulated cell death called ferroptosis, is of special interest for its implication in pathogenesis of various diseases such as cardiovascular disease, neurological disorders, cancers, and various other age-related disorders (ARD). In ferroptosis, the cell death occur neither by conventional apoptosis, necrosis nor by autophagy, rather dysregulated iron in the cell mediates excessive lipid peroxidation of accumulated lethal lipids. It is not surprising to assume its role in aging as previous research have identified some solid cues on the subject. In this review, we will highlight the factual evidences to support the possible role and implication of ferroptosis in aging in order to declare the need to identify and explore the interventions to prevent excessive ferroptosis leading to accelerated aging and associated liabilities of aging.

scholarly journals Aptamer Applications in Neuroscience

2021 ◽  
Author(s):  
Meric Ozturk ◽  
Marit Nilsen-Hamilton ◽  
Muslum Ilgu
Keyword(s):  
Multiple Sclerosis ◽  
Amyotrophic Lateral Sclerosis ◽  
Nucleic Acid ◽  
Brain Tumors ◽  
Neurological Disorders ◽  
Neurological Diseases ◽  
Treatment Options ◽  
Health Community ◽  
Theranostic Applications ◽  
Lateral Sclerosis

Being the predominant cause of disability, neurological diseases have received much attention from the global health community. Over a billion people suffer from one of the following neurological disorders: dementia, epilepsy, stroke, migraine, meningitis, Alzheimer's disease, Parkinson’s disease, multiple sclerosis, amyotrophic lateral sclerosis, Huntington’s disease, prion dis-ease, or brain tumors. Diagnosis and treatment options are limited for many of these diseases. Aptamers, being small and non-immunogenic nucleic acid molecules that are easy to chemically modify, offer potential diagnostic and theranostic applications to meet these needs. This review covers pioneer studies to apply aptamers, which show promise for future diagnostics and treatments of neurological disorders that pose increasingly dire worldwide health challenges.

scholarly journals Aptamer Applications in Neuroscience

2021 ◽  
Vol 14 (12) ◽  
pp. 1260
Author(s):  
Meric Ozturk ◽  
Marit Nilsen-Hamilton ◽  
Muslum Ilgu
Keyword(s):  
Multiple Sclerosis ◽  
Amyotrophic Lateral Sclerosis ◽  
Nucleic Acid ◽  
Brain Tumors ◽  
Global Health ◽  
Neurological Disorders ◽  
Neurological Diseases ◽  
Treatment Options ◽  
Health Community ◽  
Lateral Sclerosis

Being the predominant cause of disability, neurological diseases have received much attention from the global health community. Over a billion people suffer from one of the following neurological disorders: dementia, epilepsy, stroke, migraine, meningitis, Alzheimer’s disease, Parkinson’s disease, multiple sclerosis, amyotrophic lateral sclerosis, Huntington’s disease, prion disease, or brain tumors. The diagnosis and treatment options are limited for many of these diseases. Aptamers, being small and non-immunogenic nucleic acid molecules that are easy to chemically modify, offer potential diagnostic and theragnostic applications to meet these needs. This review covers pioneering studies in applying aptamers, which shows promise for future diagnostics and treatments of neurological disorders that pose increasingly dire worldwide health challenges.

scholarly journals Everything you always wanted to know about sex and Neurology: neurological disability and sexuality

2018 ◽  
Vol 76 (7) ◽  
pp. 430-435 ◽  
Author(s):  
Alejandro Nasimbera ◽  
Julieta Rosales ◽  
Berenice Silva ◽  
Ricardo Alonso ◽  
Natalia Bohorquez ◽  
...  
Keyword(s):  
Sexual Dysfunction ◽  
Neurological Disorders ◽  
Neurological Diseases ◽  
Control Group ◽  
Cross Sectional ◽  
Main Variable ◽  
One Year ◽  
The Relationship ◽  
Control Study ◽  
Lateral Sclerosis

ABSTRACT Chronic neurological disorders generate disabilities affecting multiple aspects of life, including sexuality. Objective To describe the presence of sexual dysfunction and comorbidities in a population with chronic neurological disorders. To analyze the relationship between disability and sexual dysfunction. Methods A cross-sectional case-control study was carried out. Patients with amyotrophic lateral sclerosis (ALS), multiple sclerosis (MS), Parkinson’s disease (PD), and stroke of at least one year since the onset of symptoms were included, and compared with controls with no neurological disease, matched by age and sex. Results We included 71 participants: 29 controls, with a mean age of 49.4 years, and 42 patients with a mean age of 53.8 years. Sexual dysfunction was present in 22.5% of the controls and 77.5% of the patients. A statistically significant relationship between sexual dysfunction and disability was found in the logistic regression analysis (OR = 20.38, 95%CI: 2.5 –165.86). Conclusions Disability proved to be the main variable related to the presence of sexual dysfunction. Patients with ALS had the worst rates of sexual dysfunction. Patients with MS were similar to the control group. As for the PD group, no patient had normal sexuality. Finally, in stroke patients, the presence of comorbidities and their treatment may have negatively influenced sexuality. These findings showed that patients with chronic neurological diseases have sexual dysfunction and underscore the need for neurologists to know and address this problem.

The Influence of Vitamin D on Neurodegeneration and Neurological Disorders: A Rationale for its Physio-pathological Actions

2020 ◽  
Vol 26 (21) ◽  
pp. 2475-2491 ◽  
Author(s):  
Maria Morello ◽  
Massimo Pieri ◽  
Rossella Zenobi ◽  
Alessandra Talamo ◽  
Delphine Stephan ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Vitamin D ◽  
Neurodegenerative Diseases ◽  
Neurological Disorders ◽  
Neurological Diseases ◽  
Steroid Hormone ◽  
Neuroactive Steroid ◽  
Brain Functions ◽  
Prevention And Treatment ◽  
Lateral Sclerosis

Vitamin D is a steroid hormone implicated in the regulation of neuronal integrity and many brain functions. Its influence, as a nutrient and a hormone, on the physiopathology of the most common neurodegenerative diseases is continuously emphasized by new studies. This review addresses what is currently known about the action of vitamin D on the nervous system and neurodegenerative diseases such as Multiple Sclerosis, Alzheimer’s disease, Parkinson’s disease and Amyotrophic Lateral Sclerosis. Further vitamin D research is necessary to understand how the action of this “neuroactive” steroid can help to optimize the prevention and treatment of several neurological diseases.

Neuroprotective Potential of Caffeic Acid Phenethyl Ester (CAPE) in CNS Disorders: Mechanistic and Therapeutic Insights

2021 ◽  
Vol 19 ◽  
Author(s):  
Namrata Pramod Kulkarni ◽  
Bhupesh Vaidya ◽  
Acharan Narula ◽  
Shyam Sunder Sharma
Keyword(s):  
Caffeic Acid ◽  
Neurological Disorders ◽  
Therapeutic Potential ◽  
Caffeic Acid Phenethyl Ester ◽  
Depression And Anxiety ◽  
Age Related ◽  
Anti Cancer ◽  
Therapeutic Molecules ◽  
Conifer Trees ◽  
Lateral Sclerosis

: Neurological disorders like Alzheimer’s disease (AD), Parkinson’s disease (PD), stroke, amyotrophic lateral sclerosis, Huntington’s disease (HD), epilepsy, traumatic brain injury (TBI), depression and anxiety are responsible for thousands of deaths worldwide every year. With the increase in life expectancy, there has been a rise in the prevalence of these disorders. Age is one of the major risk factors for these neurological disorders and with the aged population is set to rise to 1.25 billion by 2050. There is a growing concern to look for new therapeutic molecules to treat age-related diseases. Caffeic acid phenethyl ester (CAPE) is a molecule obtained from a number of botanical sources such as the bark of conifer trees as well as propolis which is extracted from beehives. Though CAPE remains relatively unexplored in human trials, it possesses antioxidant, anti-inflammatory, antimitogenic and anti-cancer activities as shown by preclinical studies. Apart from this, it also exhibits tremendous potential for the treatment of neurological disorders through modulation of multiple molecular pathways and attenuation of behavioural deficits. In the present article, we have reviewed the therapeutic potential of CAPE and its mechanisms in the treatment of neurological disorders.

Regulating inflammation associated Ferroptosis-a treatment strategy for Parkinson disease

2021 ◽  
Vol 28 ◽  
Author(s):  
Marthandam Asokan Shibu ◽  
B. Mahalakshmi ◽  
V. Bharath Kumar
Keyword(s):  
Clinical Trials ◽  
Cell Death ◽  
Treatment Strategy ◽  
Neurological Disorders ◽  
Neurological Diseases ◽  
Underlying Mechanism ◽  
Acute Injury ◽  
Brain Iron ◽  
Kidney Tumors

: Ferroptosis plays a critical regulatory role for a new kind of cell death initiating and developing an array of disorders like neurological diseases, acute injury of kidney, tumors and ischemia etc. This selective deposition of iron is one of the pathogenic reasons for PD and although it’s underlying mechanism is still unknown. In this review, the role of neuroinflammation in Parkinson’s disease (PD) leading to neurodegeneration has been discussed in detail. The accumulation of brain iron has been found in many chronic neurological disorders including PD. We have also discussed the unique features of Ferroptosis as compared to other cellular death pathways and it links in aggravating the pathology of PD. Further, the concept of targeting Ferroptosis for PD pathology and inducers and inhibitors, pharmacological drugs and clinical trials for PD candidates in phase IV stage in completed status are detailed in the respective sections.

scholarly journals Transplantation of hPSC-derived pericyte-like cells promotes functional recovery in ischemic stroke mice

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Jiaqi Sun ◽  
Yinong Huang ◽  
Jin Gong ◽  
Jiancheng Wang ◽  
Yubao Fan ◽  
...  
Keyword(s):  
Neural Crest ◽  
Functional Recovery ◽  
Neurological Disorders ◽  
Neurological Diseases ◽  
Intermediate Stage ◽  
Underlying Mechanism ◽  
Artery Occlusion ◽  
Cranial Neural Crest ◽  
Material Sources

Abstract Pericytes play essential roles in blood–brain barrier (BBB) integrity and dysfunction or degeneration of pericytes is implicated in a set of neurological disorders although the underlying mechanism remains largely unknown. However, the scarcity of material sources hinders the application of BBB models in vitro for pathophysiological studies. Additionally, whether pericytes can be used to treat neurological disorders remains to be elucidated. Here, we generate pericyte-like cells (PCs) from human pluripotent stem cells (hPSCs) through the intermediate stage of the cranial neural crest (CNC) and reveal that the cranial neural crest-derived pericyte-like cells (hPSC-CNC PCs) express typical pericyte markers including PDGFRβ, CD146, NG2, CD13, Caldesmon, and Vimentin, and display distinct contractile properties, vasculogenic potential and endothelial barrier function. More importantly, when transplanted into a murine model of transient middle cerebral artery occlusion (tMCAO) with BBB disruption, hPSC-CNC PCs efficiently promote neurological functional recovery in tMCAO mice by reconstructing the BBB integrity and preventing of neuronal apoptosis. Our results indicate that hPSC-CNC PCs may represent an ideal cell source for the treatment of BBB dysfunction-related disorders and help to model the human BBB in vitro for the study of the pathogenesis of such neurological diseases.

scholarly journals Fasting as a Therapy in Neurological Disease

Nutrients ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 2501 ◽  
Author(s):  
Phillips
Keyword(s):  
Multiple Sclerosis ◽  
Neurological Disorders ◽  
Neurological Disease ◽  
Neurological Diseases ◽  
The Metabolic Syndrome ◽  
Age Related ◽  
Broad Array ◽  
Potential Applications ◽  
Age Related Cognitive Decline ◽  
The Brain

Fasting is deeply entrenched in evolution, yet its potential applications to today’s most common, disabling neurological diseases remain relatively unexplored. Fasting induces an altered metabolic state that optimizes neuron bioenergetics, plasticity, and resilience in a way that may counteract a broad array of neurological disorders. In both animals and humans, fasting prevents and treats the metabolic syndrome, a major risk factor for many neurological diseases. In animals, fasting probably prevents the formation of tumors, possibly treats established tumors, and improves tumor responses to chemotherapy. In human cancers, including cancers that involve the brain, fasting ameliorates chemotherapy-related adverse effects and may protect normal cells from chemotherapy. Fasting improves cognition, stalls age-related cognitive decline, usually slows neurodegeneration, reduces brain damage and enhances functional recovery after stroke, and mitigates the pathological and clinical features of epilepsy and multiple sclerosis in animal models. Primarily due to a lack of research, the evidence supporting fasting as a treatment in human neurological disorders, including neurodegeneration, stroke, epilepsy, and multiple sclerosis, is indirect or non-existent. Given the strength of the animal evidence, many exciting discoveries may lie ahead, awaiting future investigations into the viability of fasting as a therapy in neurological disease.

Biomechanistic insights into the roles of oxidative stress in generating complex neurological disorders

2018 ◽  
Vol 399 (4) ◽  
pp. 305-319 ◽  
Author(s):  
Mohammad Yusuf ◽  
Maria Khan ◽  
Majed A. Robaian ◽  
Riaz A. Khan
Keyword(s):  
Oxidative Stress ◽  
Neurological Disorders ◽  
Cell Activation ◽  
Enzyme System ◽  
Neurological Diseases ◽  
Excess Oxygen ◽  
Antioxidant Enzyme System ◽  
Glial Cell Activation ◽  
The Brain ◽  
Lateral Sclerosis

AbstractNeurological diseases like Alzheimer’s disease, epilepsy, parkinsonism, depression, Huntington’s disease and amyotrophic lateral sclerosis prevailing globally are considered to be deeply influenced by oxidative stress-based changes in the biochemical settings of the organs. The excess oxygen concentration triggers the production of reactive oxygen species, and even the intrinsic antioxidant enzyme system, i.e. SOD, CAT and GSHPx, fails to manage their levels and keep them under desirable limits. This consequently leads to oxidation of protein, lipids and nucleic acids in the brain resulting in apoptosis, proteopathy, proteasomes and mitochondrion dysfunction, glial cell activation as well as neuroinflammation. The present exploration deals with the evidence-based mechanism of oxidative stress towards development of key neurological diseases along with the involved biomechanistics and biomaterials.

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