scholarly journals Redox Imbalance and Viral Infections in Neurodegenerative Diseases

2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
Dolores Limongi ◽  
Sara Baldelli

Reactive oxygen species (ROS) are essential molecules for many physiological functions and act as second messengers in a large variety of tissues. An imbalance in the production and elimination of ROS is associated with human diseases including neurodegenerative disorders. In the last years the notion that neurodegenerative diseases are accompanied by chronic viral infections, which may result in an increase of neurodegenerative diseases progression, emerged. It is known in literature that enhanced viral infection risk, observed during neurodegeneration, is partly due to the increase of ROS accumulation in brain cells. However, the molecular mechanisms of viral infection, occurring during the progression of neurodegeneration, remain unclear. In this review, we discuss the recent knowledge regarding the role of influenza, herpes simplex virus type-1, and retroviruses infection in ROS/RNS-mediated Parkinson’s disease (PD), Alzheimer’s disease (AD), and amyotrophic lateral sclerosis (ALS).

2022 ◽  
Vol 23 (2) ◽  
pp. 815
Author(s):  
Soudeh Ghafouri-Fard ◽  
Bashdar Mahmud Hussen ◽  
Hazha Hadayat Jamal ◽  
Mohammad Taheri ◽  
Guive Sharifi

Non-coding RNAs, particularly lncRNAs and miRNAs, have recently been shown to regulate different steps in viral infections and induction of immune responses against viruses. Expressions of several host and viral lncRNAs have been found to be altered during viral infection. These lncRNAs can exert antiviral function via inhibition of viral infection or stimulation of antiviral immune response. Some other lncRNAs can promote viral replication or suppress antiviral responses. The current review summarizes the interaction between ncRNAs and herpes simplex virus, cytomegalovirus, and Epstein–Barr infections. The data presented in this review helps identify viral-related regulators and proposes novel strategies for the prevention and treatment of viral infection.


2001 ◽  
Vol 120 (5) ◽  
pp. A136-A137
Author(s):  
K TSAMAKIDES ◽  
E PANOTOPOULOU ◽  
D DIMITROULOPOULOS ◽  
M CHRISTOPOULO ◽  
D XINOPOULOS ◽  
...  

2021 ◽  
pp. 1-8
Author(s):  
Mahmood Tavakkoli ◽  
Saeed Aali ◽  
Borzoo Khaledifar ◽  
Gordon A. Ferns ◽  
Majid Khazaei ◽  
...  

<b><i>Background:</i></b> Post-surgical adhesion bands (PSABs) are a common complication after abdominal or pelvic surgeries for different reasons like cancer treatment. Despite improvements in surgical techniques and the administration of drugs or the use of physical barriers, there has only been limited improvement in the frequency of postoperative adhesions. Complications of PSAB are pain, infertility, intestinal obstruction, and increased mortality. The most important molecular mechanisms for the development of PSAB are inflammatory response, oxidative stress, and overexpression of pro-fibrotic molecules such as transforming growth factor β. However, questions remain about the pathogenesis of this problem, for example, the causes for individual differences or why certain tissue sites are more prone to post-surgical adhesions. <b><i>Summary:</i></b> Addressing the pathological causes of PSAB, the potential role of local angiotensin II/angiotensin II type 1 receptors (AngII/AT1R), may help to prevent this problem. <b><i>Key Message:</i></b> The objective of this article was to explore the role of the AngII/AT1R axis potential to induce PSAB and the therapeutic potential of angiotensin receptor blockers in the prevention and treatment of PSAB.


2021 ◽  
Vol 9 (7) ◽  
pp. 1519
Author(s):  
Sonia R. Isaacs ◽  
Dylan B. Foskett ◽  
Anna J. Maxwell ◽  
Emily J. Ward ◽  
Clare L. Faulkner ◽  
...  

For over a century, viruses have left a long trail of evidence implicating them as frequent suspects in the development of type 1 diabetes. Through vigorous interrogation of viral infections in individuals with islet autoimmunity and type 1 diabetes using serological and molecular virus detection methods, as well as mechanistic studies of virus-infected human pancreatic β-cells, the prime suspects have been narrowed down to predominantly human enteroviruses. Here, we provide a comprehensive overview of evidence supporting the hypothesised role of enteroviruses in the development of islet autoimmunity and type 1 diabetes. We also discuss concerns over the historical focus and investigation bias toward enteroviruses and summarise current unbiased efforts aimed at characterising the complete population of viruses (the “virome”) contributing early in life to the development of islet autoimmunity and type 1 diabetes. Finally, we review the range of vaccine and antiviral drug candidates currently being evaluated in clinical trials for the prevention and potential treatment of type 1 diabetes.


1994 ◽  
Vol 75 (11) ◽  
pp. 3127-3135 ◽  
Author(s):  
H. S. Marsden ◽  
M. Murphy ◽  
G. L. McVey ◽  
K. A. MacEachran ◽  
A. M. Owsianka ◽  
...  

2016 ◽  
Vol 64 (1) ◽  
pp. 2-6 ◽  
Author(s):  
Feyza Engin

Type 1 diabetes (T1D) results from an autoimmune-mediated destruction of pancreatic β cells. The incidence of T1D is on the rise globally around 3% to 5% per year and rapidly increasing incidence in younger children is of the greatest concern. currently, there is no way to cure or prevent T1D; hence, a deeper understanding of the underlying molecular mechanisms of this disease is essential to the development of new effective therapies. The endoplasmic reticulum (ER) is an organelle with multiple functions that are essential for cellular homeostasis. Excessive demand on the ER, chronic inflammation, and environmental factors lead to ER stress and to re-establish cellular homeostasis, the adaptive unfolded protein response (UPR) is triggered. However, chronic ER stress leads to a switch from a prosurvival to a proapoptotic UPR, resulting in cell death. Accumulating data have implicated ER stress and defective UPR in the pathogenesis of inflammatory and autoimmune diseases, and ER stress has been implicated in β-cell failure in type 2 diabetes. However, the role of ER stress and the UPR in β-cell pathophysiology and in the initiation and propagation of the autoimmune responses in T1D remains undefined. This review will highlight the current understanding and recent in vivo data on the role of ER stress and adaptive responses in T1D pathogenesis and the potential therapeutic aspect of enhancing β-cell ER function and restoring UPR defects as novel clinical strategies against this disease.


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