scholarly journals Modulation by Ozone Therapy of Oxidative Stress in Chemotherapy-Induced Peripheral Neuropathy: The Background for a Randomized Clinical Trial

2021 ◽  
Vol 22 (6) ◽  
pp. 2802
Author(s):  
Bernardino Clavo ◽  
Gregorio Martínez-Sánchez ◽  
Francisco Rodríguez-Esparragón ◽  
Delvys Rodríguez-Abreu ◽  
Saray Galván ◽  
...  

(1) Background: Chemotherapy-induced peripheral neuropathy (CIPN) decreases the quality of life of patients and can lead to a dose reduction and/or the interruption of chemotherapy treatment, limiting its effectiveness. Potential pathophysiological mechanisms involved in the pathogenesis of CIPN include chronic oxidative stress and subsequent increase in free radicals and proinflammatory cytokines. Approaches for the treatment of CIPN are highly limited in their number and efficacy, although several antioxidant-based therapies have been tried. On the other hand, ozone therapy can induce an adaptive antioxidant and anti-inflammatory response, which could be potentially useful in the management of CIPN. (2) Methods: The aims of this works are: (a) to summarize the potential mechanisms that could induce CIPN by the most relevant drugs (platinum, taxanes, vinca alkaloids, and bortezomib), with particular focus on the role of oxidative stress; (b) to summarize the current situation of prophylactic and treatment approaches; (c) to describe the action mechanisms of ozone therapy to modify oxidative stress and inflammation with its potential repercussions for CIPN; (d) to describe related experimental and clinical reports with ozone therapy in chemo-induced neurologic symptoms and CIPN; and (e) to show the main details about an ongoing focused clinical trial. (3) Results: A wide background relating to the mechanisms of action and a small number of experimental and clinical reports suggest that ozone therapy could be useful to prevent or improve CIPN. (4) Conclusions: Currently, there are no clinically relevant approaches for the prevention and treatment of stablished CIPN. The potential role of ozone therapy in this syndrome merits further research. Randomized controlled trials are ongoing.

Antioxidants ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 588 ◽  
Author(s):  
Bernardino Clavo ◽  
Francisco Rodríguez-Esparragón ◽  
Delvys Rodríguez-Abreu ◽  
Gregorio Martínez-Sánchez ◽  
Pedro Llontop ◽  
...  

(1) Background: Cancer is one of the leading causes of mortality worldwide. Radiotherapy and chemotherapy attempt to kill tumor cells by different mechanisms mediated by an intracellular increase of free radicals. However, free radicals can also increase in healthy cells and lead to oxidative stress, resulting in further damage to healthy tissues. Approaches to prevent or treat many of these side effects are limited. Ozone therapy can induce a controlled oxidative stress able to stimulate an adaptive antioxidant response in healthy tissue. This review describes the studies using ozone therapy to prevent and/or treat chemotherapy-induced toxicity, and how its effect is linked to a modification of free radicals and antioxidants. (2) Methods: This review encompasses a total of 13 peer-reviewed original articles (most of them with assessment of oxidative stress parameters) and some related works. It is mainly focused on four drugs: Cisplatin, Methotrexate, Doxorubicin, and Bleomycin. (3) Results: In experimental models and the few existing clinical studies, modulation of free radicals and antioxidants by ozone therapy was associated with decreased chemotherapy-induced toxicity. (4) Conclusions: The potential role of ozone therapy in the management of chemotherapy-induced toxicity merits further research. Randomized controlled trials are ongoing.


2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Xin-Fang Leong ◽  
Mohd Rais Mustafa ◽  
Kamsiah Jaarin

Hypertension increases the risk for a variety of cardiovascular diseases, including stroke, coronary artery disease, heart failure, and peripheral vascular disease. The increase in oxidative stress has been associated with the pathogenesis of hypertension. Increase of blood pressure is due to an imbalance between antioxidants defence mechanisms and free radical productions. Excessive production of reactive oxygen species reduces nitric oxide bioavailability leading to an endothelial dysfunction and a subsequent increase in total peripheral resistance. Hypertension can cause few symptoms until it reaches the advanced stage and poses serious health problems with lifelong consequences. Hypertensive patients are required to take drugs for life to control the hypertension and prevent complications. Some of these drugs are expensive and may have adverse reactions. Hence, it is timely to examine scientifically, complimentary therapies that are more effective and with minimal undesirable effects.Nigella sativa(NS) and its active constituents have been documented to exhibit antioxidant, hypotensive, calcium channel blockade and diuretic properties which may contribute to reduce blood pressure. This suggests a potential role of NS in the management of hypertension, and thus more studies should be conducted to evaluate its effectiveness.


2010 ◽  
Vol 4 (2) ◽  
pp. 117-125 ◽  
Author(s):  
Karen Y. Wonders ◽  
Beverly S. Reigle ◽  
Daniel G. Drury

1983 ◽  
Vol 104 (4_Suppl) ◽  
pp. S89-S94
Author(s):  
E. Matikainen ◽  
J. Juntunen

ABSTRACT. Peripheral neuropathy is a frequent complication of diabetes mellitus. Alterations of the peripheral nervous system in diabetics have been studied in numerous investigations. There are many factors known to participate in the development of this complication, e.g. the age of the patient, duration of the diabetes, quality of the diabetic control etc. The role of different types of diabetes in development of neuropathy is still largely unclear since investigations on this aspect are few. It seems, however, that peripheral neuropathy in type 2 (non-insulin dependent) diabetes is common but often mild. The differential diagnosis of the peripheral neuropathy in type 2 diabetics is more difficult than in type 1 (insulin dependent) diabetics, since these patients tend to be older and also may have other concomitant disorders. In this paper the clinical features and pathogenetic mechanisms of neuropathy in type 2 diabetes are briefly discussed.


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