scholarly journals The Biology of Glial Cells and Their Complex Roles in Alzheimer’s Disease: New Opportunities in Therapy

2018 ◽  
Author(s):  
Saif Shahriar Rahman Nirzhor ◽  
Rubayat Islam Khan ◽  
Sharmind Neelotpol
Keyword(s):  
Glial Cells ◽  
Structural Integrity ◽  
Therapeutic Targets ◽  
Oligodendrocyte Progenitor Cells ◽  
Therapeutic Benefits ◽  
Concentration Of Ions ◽  
The Central Nervous System ◽  
Made In

Even though Alzheimer’s disease (AD) is of significant interest to the scientific community, its pathogenesis is very complicated and not well-understood. A great deal of progress has been made in AD research recently and with the advent of these new insights more therapeutic benefits may be identified that could help patients around the world. Much of the research in AD thus far has been very neuron-oriented; however, recent studies suggest that glial cells, i.e., microglia, astrocytes, oligodendrocytes, and oligodendrocyte progenitor cells (NG2 glia), are linked to the pathogenesis of AD and may offer several potential therapeutic targets against AD. In addition to a number of other functions, glial cells are responsible for maintaining homeostasis (i.e., concentration of ions, neurotransmitters, etc.) within the central nervous system (CNS) and are crucial to the structural integrity of neurons. This review explores the: (i) role of glial cells in AD pathogenesis; (ii) complex functionalities of the components involved; and (iii) potential therapeutic targets that could eventually lead to a better quality of life for AD patients

scholarly journals The Biology of Glial Cells and Their Complex Roles in Alzheimer’s Disease: New Opportunities in Therapy

Biomolecules ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 93 ◽  
Author(s):  
Saif Nirzhor ◽  
Rubayat Khan ◽  
Sharmind Neelotpol
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Glial Cells ◽  
Structural Integrity ◽  
Therapeutic Targets ◽  
Oligodendrocyte Progenitor Cells ◽  
Therapeutic Benefits ◽  
Concentration Of Ions ◽  
The Central Nervous System

Even though Alzheimer’s disease (AD) is of significant interest to the scientific community, its pathogenesis is very complicated and not well-understood. A great deal of progress has been made in AD research recently and with the advent of these new insights more therapeutic benefits may be identified that could help patients around the world. Much of the research in AD thus far has been very neuron-oriented; however, recent studies suggest that glial cells, i.e., microglia, astrocytes, oligodendrocytes, and oligodendrocyte progenitor cells (NG2 glia), are linked to the pathogenesis of AD and may offer several potential therapeutic targets against AD. In addition to a number of other functions, glial cells are responsible for maintaining homeostasis (i.e., concentration of ions, neurotransmitters, etc.) within the central nervous system (CNS) and are crucial to the structural integrity of neurons. This review explores the: (i) role of glial cells in AD pathogenesis; (ii) complex functionalities of the components involved; and (iii) potential therapeutic targets that could eventually lead to a better quality of life for AD patients.

scholarly journals A Review of the Complex Roles of Glial Cells in Alzheimer’s Disease and Potential Glial-Oriented Therapeutic Targets

2018 ◽  
Author(s):  
Saif Shahriar Rahman Nirzhor ◽  
Rubayat Islam Khan ◽  
Sharmind Neelotpol
Keyword(s):  
Quality Of Life ◽  
Central Nervous System ◽  
Nervous System ◽  
Glial Cells ◽  
Therapeutic Targets ◽  
Concentration Of Ions ◽  
The Central Nervous System

The pathogenesis of Alzheimer’s disease (AD) is very complicated and not well-understood. As more and more studies are performed with regards to this disease, new insights are coming to light. Much of the research in AD so far has been very neuron-oriented however, recent studies suggest that certain glial cells i.e. microglia, astrocytes, oligodendrocytes, and NG2 glia are linked to the pathogenesis of AD and may offer several potential therapeutic targets in the long-standing battle against AD. Glial cells are responsible for maintaining homeostasis (i.e. concentration of ions and neurotransmitters) within the neuronal environment of the central nervous system (CNS) and are crucial to the integrity of neurons. This review explores the (1) role of glial cells in AD pathogenesis, (2) complex functionalities of the components involved and (3) potential therapeutic targets that it could eventuate leading to a better quality of life for AD patients.

scholarly journals The Microbiota–Gut–Brain Axis and Alzheimer Disease. From Dysbiosis to Neurodegeneration: Focus on the Central Nervous System Glial Cells

2021 ◽  
Vol 10 (11) ◽  
pp. 2358
Author(s):  
Maria Grazia Giovannini ◽  
Daniele Lana ◽  
Chiara Traini ◽  
Maria Giuliana Vannucchi
Keyword(s):  
Alzheimer Disease ◽  
Glial Cells ◽  
Cell Types ◽  
The Past ◽  
The Central Nervous System ◽  
Diseased State ◽  
The Brain ◽  
Alzheimer Disease Pathogenesis ◽  
Brain Homeostasis

The microbiota–gut system can be thought of as a single unit that interacts with the brain via the “two-way” microbiota–gut–brain axis. Through this axis, a constant interplay mediated by the several products originating from the microbiota guarantees the physiological development and shaping of the gut and the brain. In the present review will be described the modalities through which the microbiota and gut control each other, and the main microbiota products conditioning both local and brain homeostasis. Much evidence has accumulated over the past decade in favor of a significant association between dysbiosis, neuroinflammation and neurodegeneration. Presently, the pathogenetic mechanisms triggered by molecules produced by the altered microbiota, also responsible for the onset and evolution of Alzheimer disease, will be described. Our attention will be focused on the role of astrocytes and microglia. Numerous studies have progressively demonstrated how these glial cells are important to ensure an adequate environment for neuronal activity in healthy conditions. Furthermore, it is becoming evident how both cell types can mediate the onset of neuroinflammation and lead to neurodegeneration when subjected to pathological stimuli. Based on this information, the role of the major microbiota products in shifting the activation profiles of astrocytes and microglia from a healthy to a diseased state will be discussed, focusing on Alzheimer disease pathogenesis.

scholarly journals Quality of Life in Carotid Atherosclerosis: The Role of Co-morbid Mood Disorders

2016 ◽  
Vol 12 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Maria Lecca ◽  
Luca Saba ◽  
Roberto Sanfilippo ◽  
Elisa Pintus ◽  
Michela Cadoni ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Central Nervous System ◽  
Nervous System ◽  
Mood Disorders ◽  
Carotid Atherosclerosis ◽  
Short Form ◽  
The Central Nervous System ◽  
Dsm Iv

Introduction/Objective: To study in severe carotid atherosclerosis (CA): the frequency of mood disorders (MD); the impairment of quality of life (QoL); the role of co-morbid MD in such impairment. Methods: Case-control study. Cases: consecutive in-patients with CA (stenosis ≥ 50%). Controls: subjects with no diagnosis of CA randomized from a database of a community survey. Psychiatric diagnosis according to DSM-IV made by clinicians and semi-structured interview, QoL measured by the Short Form Health Survey (SF-12). Results: This is the first study on comorbidity on CA disease and MD in which psychiatric diagnoses are conducted by clinicians according to DSM-IV diagnostic criteria. Major Depressive Disorder (MDD) (17.4% vs 2.72%, P <0.0001) but not Bipolar Disorders (BD) (4.3% vs 0.5%, P = 0.99) was higher in cases (N=46) than in controls (N= 184). SF-12 scores in cases were lower than in controls (30.56±8.12 vs 36.81±6:40; p <0.001) with QoL comparable to serious chronic diseases of the central nervous system. The burden of a concomitant MDD or BD amplifies QoL impairment. Conclusion: Comorbid MD aggravates the impairment of QoL in CA. Unlike autoimmune diseases or degenerative diseases of the Central Nervous System, CA shows a strong risk of MDD than BD.

scholarly journals The Role of Adrenoceptors in the Retina

Cells ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 2594
Author(s):  
Yue Ruan ◽  
Tobias Böhmer ◽  
Subao Jiang ◽  
Adrian Gericke
Keyword(s):  
Visual Information ◽  
Vision Loss ◽  
Retinal Diseases ◽  
System A ◽  
The Central Nervous System ◽  
The Individual ◽  
And Function ◽  
The Brain

The retina is a part of the central nervous system, a thin multilayer with neuronal lamination, responsible for detecting, preprocessing, and sending visual information to the brain. Many retinal diseases are characterized by hemodynamic perturbations and neurodegeneration leading to vision loss and reduced quality of life. Since catecholamines and respective bindings sites have been characterized in the retina, we systematically reviewed the literature with regard to retinal expression, distribution and function of alpha1 (α1)-, alpha2 (α2)-, and beta (β)-adrenoceptors (ARs). Moreover, we discuss the role of the individual adrenoceptors as targets for the treatment of retinal diseases.

scholarly journals Impact of Exercise on Immunometabolism in Multiple Sclerosis

2020 ◽  
Vol 9 (9) ◽  
pp. 3038 ◽  
Author(s):  
Remsha Afzal ◽  
Jennifer K Dowling ◽  
Claire E McCoy
Keyword(s):  
Multiple Sclerosis ◽  
Cell Function ◽  
Immune Cell ◽  
Therapeutic Benefits ◽  
Demyelinating Lesions ◽  
Inflammatory State ◽  
Autoimmune Condition ◽  
The Central Nervous System ◽  
Axonal Degradation

Multiple Sclerosis (MS) is a chronic, autoimmune condition characterized by demyelinating lesions and axonal degradation. Even though the cause of MS is heterogeneous, it is known that peripheral immune invasion in the central nervous system (CNS) drives pathology at least in the most common form of MS, relapse-remitting MS (RRMS). The more progressive forms’ mechanisms of action remain more elusive yet an innate immune dysfunction combined with neurodegeneration are likely drivers. Recently, increasing studies have focused on the influence of metabolism in regulating immune cell function. In this regard, exercise has long been known to regulate metabolism, and has emerged as a promising therapy for management of autoimmune disorders. Hence, in this review, we inspect the role of key immunometabolic pathways specifically dysregulated in MS and highlight potential therapeutic benefits of exercise in modulating those pathways to harness an anti-inflammatory state. Finally, we touch upon current challenges and future directions for the field of exercise and immunometabolism in MS.

scholarly journals Targeting Wnt/β-Catenin Pathway for Developing Therapies for Hair Loss

2020 ◽  
Vol 21 (14) ◽  
pp. 4915 ◽  
Author(s):  
Bu Young Choi
Keyword(s):  
Hair Loss ◽  
Hair Growth ◽  
In Vivo Studies ◽  
Intracellular Targets ◽  
Remarkable Progress ◽  
Made In

Persistent hair loss is a major cause of psychological distress and compromised quality of life in millions of people worldwide. Remarkable progress has been made in understanding the molecular basis of hair loss and identifying valid intracellular targets for designing effective therapies for hair loss treatment. Whereas a variety of growth factors and signaling pathways have been implicated in hair cycling process, the activation of Wnt/β-catenin signaling plays a central role in hair follicle regeneration. Several plant-derived chemicals have been reported to promote hair growth by activating Wnt/β-catenin signaling in various in vitro and in vivo studies. This mini-review sheds light on the role of Wnt/β-catenin in promoting hair growth and the current progress in designing hair loss therapies by targeting this signaling pathway.

scholarly journals Cytomorphological and Cytochemical Identification of Microglia

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Subhajit Das Sarma ◽  
Koushik Chatterjee ◽  
Himadri Dinda ◽  
Dhriti Chatterjee ◽  
Jayasri Das Sarma
Keyword(s):  
Central Nervous System ◽  
Animal Model ◽  
Immune Cells ◽  
Microglial Activation ◽  
Neurological Diseases ◽  
Neuronal Dysfunction ◽  
Ultrastructural Studies ◽  
The Central Nervous System ◽  
Made In

Microglia is one of the major resident immune cells in the central nervous system and is considered to be the key cellular mediator of neuroinflammatory processes. Identification of different Microglial states of activation by morphologic means has been one of the major challenges in the field of neurobiology of diseases. Therefore, microglial biology demands techniques to identify differing stages of microglia in different neuroanatomic locations as well as understanding the role of Microglia in different Neurological diseases. This present study is aimed towards summarizing the literature and for understanding the progress made in different Cytomorphological and Cytochemical techniques of identifying Microglia. This study also review recently used Immunohistochemistry techniques, along with Ultrastructural studies determining different morphological features of resting to activated phagocytic Microglia in a viral induced experimental animal model of neuroinflammation. Results revealed that chronic Microglial activation is considered to be an important component of neuronal dysfunction, injury, and loss (and hence to disease progression). Thus, Microglial research with special emphasis on identification of different activation states of Microglia has gradually become significant.

scholarly journals Evaluation and Pain Management in Children with Cancer: About 48 Cases in Dakar

2020 ◽  
Vol 5 (10) ◽  
Keyword(s):  
Pain Management ◽  
Acute Leukemia ◽  
Medical Emergency ◽  
Cancer Pain Management ◽  
Children With Cancer ◽  
Morphine Administration ◽  
A Prospective Study ◽  
Made In

Introduction: Pain is ubiquitous in cancer and is the most dreaded symptom in children with cancer. It is a medical emergency. In Senegal, there is little data on the assessment and management of pain in children. The objective of this study is to evaluate the role of morphine in cancer pain management in children. Methodology: This is a prospective study carried out over a period of 4 and a half months (from April 15 to August 31, 2017). All children hospitalized at the pediatric Oncology Department and who used morphine as part of their treatment were included in this study. The hospital prevalence was 69.5%. The most common tumor pathologies found were acute leukemia, followed by nephroblastoma and Burkitt’s lymphoma. Results: Pain was present for an average of 30.3 days; It was abdominal in half of the cases. Nociceptive pain was present in 89.6% of cases. An average 40% reduction in pain intensity was observed following morphine administration on the first day. Analgesia was obtained on average after 6 days. Conclusion: Morphine has a crucial role in pain management in children with cancer. Efforts still need to be made in our unit to improve the quality of pain management in children.

scholarly journals Platelet Function and Therapeutic Applications in Dogs: Current Status and Future Prospects

Animals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 201
Author(s):  
Laura Cortese ◽  
Pete W. Christopherson ◽  
Alessandra Pelagalli
Keyword(s):  
Platelet Function ◽  
Platelet Rich Plasma ◽  
Functional Characterization ◽  
Current Status ◽  
Significant Progress ◽  
Therapeutic Benefits ◽  
Platelet Structure ◽  
Made In

Significant progress has been made in the functional characterization of canine platelets in the last two decades. The role of canine platelets in hemostasis includes their adhesion to the subendothelium, activation, and aggregation, leading to primary clot formation at the site of injury. Studies on canine platelet function and advancements in laboratory testing have improved the diagnosis and understanding of platelet-related disorders as well as the knowledge of the mechanisms behind these diseases. This review focuses on the most recent discoveries in canine platelet structure, function, and disorders; and discusses the efficacy of various tests in the diagnosis of platelet-related disorders. With the relatively recent discovery of angiogenetic and reparative effects of growth factors found in platelets, this review also summarizes the use of canine platelet-rich plasma (PRP) alone or in association with stem cells in regenerative therapy. The characterization of proteomic and lipidomic profiles and development of platelet gene therapy in veterinary species are areas of future study with potential for major therapeutic benefits.

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