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Kindlin-1 is a key protein in hyperbaric oxygen therapy for the treatment of neuropathic pain.

ABSTRACT: Hyperbaric oxygen therapy is increasingly used in adjuvant therapies to treat neuropathic pain. However, the specific targets of hyperbaric oxygen treatment in neuropathic pain remain unclear. Recently, we found that hyperbaric oxygen therapy produces an antinociceptive response via the kindlin-1/wnt-10a signaling pathway in a chronic pain injury model in rats.The rats received an intraperitoneal injection of AAV-FERMT1 or an adeno-associated virus control vector 20 days before the chronic constriction injury operation. During five consecutive days of hyperbaric oxygen treatment, mechanical withdrawal threshold and thermal withdrawal latency tests were performed. Then, kindlin-1 expression was examined by real-time polymerase chain reaction and Western blot analysis. Meanwhile, the activation of glial cells and the production of TNF-?, IL-1?, and fractalkine were also determined.Our findings demonstrated that hyperbaric oxygen therapy inhibited the chronic constriction injury–induced increase in kindlin-1 expression. Furthermore, overexpression of kindlin-1 reversed the antinociceptive effects of hyperbaric oxygen therapy. The observed hyperbaric oxygen–induced reductions in glial cell activation and neuroinflammation, as indicated by the production of TNF-?, IL-1?, and fractalkine, were also prominently diminished in the group with kindlin-1 overexpression.Our findings demonstrate that kindlin-1 is a key protein in the action of hyperbaric oxygen therapy in the treatment of neuropathic pain. Indeed, interference with kindlin-1 may be a drug target for reducing the neuroinflammatory responses of the glial population in neuropathic pain.

SUBMITTER: Zhao B

PROVIDER: S-EPMC5593206 | biostudies-literature | 2017 Jan-Dec

REPOSITORIES: biostudies-literature

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Kindlin-1 is a key protein in hyperbaric oxygen therapy for the treatment of neuropathic pain.

Zhao Baisong B He Erning E Pan Yongying Y Xu Haiping H Song Xingrong X

Molecular pain 20170101

<h4>Background</h4>Hyperbaric oxygen therapy is increasingly used in adjuvant therapies to treat neuropathic pain. However, the specific targets of hyperbaric oxygen treatment in neuropathic pain remain unclear. Recently, we found that hyperbaric oxygen therapy produces an antinociceptive response via the kindlin-1/wnt-10a signaling pathway in a chronic pain injury model in rats.<h4>Methods</h4>The rats received an intraperitoneal injection of AAV-FERMT1 or an adeno-associated virus control vect ...[more]

PMID: 28845732

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Project description:BackgroundChronic neuropathic pain is a condition affecting an increasing proportion of the general population and its management requires a comprehensive, multidisciplinary program. A growing body of evidence supports the use of hyperbaric oxygen therapy (HBOT) in several chronic neuropathic pain conditions; however, its role and efficacy remain unclear.PurposeTo summarize current evidence for the mechanistic rationale of HBOT in chronic neuropathic pain conditions and to evaluate its clinical efficacy.MethodsThis narrative review was conducted after searching the following databases (Medline, Embase, Cochrane, PsycINFO, the Web of Science, Scopus, ClinicalTrials. gov, WHO ICTRP, and ProQuest Digital Dissertation) from January 1946 to March 2020. Articles published in English that involved either animal or human studies with acute or chronic neuropathic pain evaluating any HBOT-related intervention were included.ResultsA total of 2971 citations were identified. A total of 29 studies were included in this review. The mechanisms of action for HBOT use in neuropathic conditions included the primary effects of hyperoxia and edema resolution, as well as the secondary effects pertinent to the production of oxygen and nitrogen reactive species (serving as pain signaling molecules), nitric oxide-dependent release of opioid peptides, and reduction of inflammatory mediators. A robust evidence for HBOT use in the clinical setting was associated with chronic regional pain syndrome and chronic primary bladder pain syndrome. Some evidence supported its use for chronic secondary (peripheral) neuropathic pain including radiation-induced plexus neuropathies, postherpetic neuralgia, and trigeminal neuralgia.ConclusionsHBOT has been shown to have antinociceptive and analgesic effects in animal models of inflammatory, neuropathic, and chronic pain. Human studies demonstrated beneficial effects of HBOT in improving clinical outcomes such as pain scores, pain-related symptoms, and quality of life. A systematic methodology of HBOT application is necessary to confirm its safety and efficacy.

Project description:BACKGROUND:Chronic wounds are common and present a health problem with significant effect on quality of life. Various pathologies may cause tissue breakdown, including poor blood supply resulting in inadequate oxygenation of the wound bed. Hyperbaric oxygen therapy (HBOT) has been suggested to improve oxygen supply to wounds and therefore improve their healing. OBJECTIVES:To assess the benefits and harms of adjunctive HBOT for treating chronic ulcers of the lower limb. SEARCH METHODS:For this second update we searched the Cochrane Wounds Group Specialised Register (searched 18 February 2015); the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2015, Issue 1); Ovid MEDLINE (1946 to 17 February 2015); Ovid MEDLINE (In-Process & Other Non-Indexed Citations, 17 February 2015); Ovid EMBASE (1974 to 17 February 2015); and EBSCO CINAHL (1982 to 17 February 2015). SELECTION CRITERIA:Randomised controlled trials (RCTs) comparing the effect on chronic wound healing of therapeutic regimens which include HBOT with those that exclude HBOT (with or without sham therapy). DATA COLLECTION AND ANALYSIS:Three review authors independently evaluated the risk of bias of the relevant trials using the Cochrane methodology and extracted the data from the included trials. We resolved any disagreement by discussion. MAIN RESULTS:We included twelve trials (577 participants). Ten trials (531 participants) enrolled people with a diabetic foot ulcer: pooled data of five trials with 205 participants showed an increase in the rate of ulcer healing (risk ratio (RR) 2.35, 95% confidence interval (CI) 1.19 to 4.62; P = 0.01) with HBOT at six weeks but this benefit was not evident at longer-term follow-up at one year. There was no statistically significant difference in major amputation rate (pooled data of five trials with 312 participants, RR 0.36, 95% CI 0.11 to 1.18). One trial (16 participants) considered venous ulcers and reported data at six weeks (wound size reduction) and 18 weeks (wound size reduction and number of ulcers healed) and suggested a significant benefit of HBOT in terms of reduction in ulcer area only at six weeks (mean difference (MD) 33.00%, 95% CI 18.97 to 47.03, P < 0.00001). We identified one trial (30 participants) which enrolled patients with non-healing diabetic ulcers as well as venous ulcers ("mixed ulcers types") and patients were treated for 30 days. For this "mixed ulcers" there was a significant benefit of HBOT in terms of reduction in ulcer area at the end of treatment (30 days) (MD 61.88%, 95% CI 41.91 to 81.85, P < 0.00001). We did not identify any trials that considered arterial and pressure ulcers. AUTHORS' CONCLUSIONS:In people with foot ulcers due to diabetes, HBOT significantly improved the ulcers healed in the short term but not the long term and the trials had various flaws in design and/or reporting that means we are not confident in the results. More trials are needed to properly evaluate HBOT in people with chronic wounds; these trials must be adequately powered and designed to minimise all kinds of bias.

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Kindlin-1 is a key protein in hyperbaric oxygen therapy for the treatment of neuropathic pain.

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Kindlin-1 is a key protein in hyperbaric oxygen therapy for the treatment of neuropathic pain.

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