301
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Exploring the Potential Role of Inflammation as an Etiological Process in ASD. REVIEW JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS 2015. [DOI: 10.1007/s40489-015-0051-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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302
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Columbo JA, Ptak JA, Buckey JC, Walsh DB. Hyperbaric oxygen for patients with above-knee amputations, persistent ischemia, and nonreconstructable vascular disease. J Vasc Surg 2015; 63:1082-4. [PMID: 26033012 DOI: 10.1016/j.jvs.2015.03.067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 03/28/2015] [Indexed: 10/23/2022]
Abstract
We describe four patients with above-knee amputations whose stump wounds failed to heal. After numerous revascularization attempts, these patients were diagnosed with nonreconstructable pelvic and groin vascular disease and were facing hip disarticulation. With the addition of hyperbaric oxygen treatment to vigilant wound care and negative pressure therapy, these patients healed their amputation stumps and were fit with prostheses. At their most recent follow-up, all patients were ambulating and using their prostheses.
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Affiliation(s)
- Jesse A Columbo
- Section of Vascular Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, NH.
| | - Judy A Ptak
- Department of Hyperbaric Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH
| | - Jay C Buckey
- Department of Hyperbaric Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH
| | - Daniel B Walsh
- Section of Vascular Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, NH
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303
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Fang J, Li H, Li G, Wang L. Effect of hyperbaric oxygen preconditioning on peri-hemorrhagic focal edema and aquaporin-4 expression. Exp Ther Med 2015; 10:699-704. [PMID: 26622378 DOI: 10.3892/etm.2015.2539] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Accepted: 04/24/2015] [Indexed: 01/07/2023] Open
Abstract
The aim of the present study was to investigate the effect of hyperbaric oxygen preconditioning (HBO-PC) on peri-hemorrhagic focal edema and aquaporin-4 (AQP-4) expression in an experimental intracerebral hemorrhage (ICH) rat model. Sixty-six Sprague Dawley® rats were divided into three groups: The sham-surgery group (SHG; n=6); the control group (A-ICH; n=30), in which the rats were injected with autologous blood; and the experimental HBO-PC group (P-HBO; n=30). The rats underwent brain edema and AQP-4 detection at 5 postoperative time-points (24, 48 and 72 h and 5 and 7 days). The water content in the brain tissues of the A-ICH animals was higher than that in the brain tissues of the SHG rats at each time-point (P<0.05), and the edema in the P-HBO was significantly more severe 24 and 48 h postoperatively than that at 7 days postoperatively (P<0.05). The difference between the P-HBO and A-ICH was significant at 48 and 72 h postoperatively (P<0.05). AQP-4 was expressed in the post-hemorrhagic rat brains of all groups; the SHG animals exhibited low expression, while the A-ICH animals exhibited an increased expression 24 h postoperatively. In the A-ICH, expression peaked at 48 h postoperatively and began to decrease gradually after 72 h. At the 7-day time-point, the expression level in the A-ICH was closer to but still higher than that of the SHG animals (P<0.05). The differences between the P-HBO and A-ICH animals at the postoperative 24-h, 48-h and 7-day time-points were statistically significant (P<0.05). In conclusion, HBO-PC may downregulate AQP-4 expression to reduce the intracerebral edema, thus strengthening tolerance to ICH and protecting the nerves.
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Affiliation(s)
- Jinyong Fang
- Department of Rehabilitation, The People's Hospital of Zhangdian, Zibo, Shandong 255025, P.R. China
| | - Hongling Li
- Department of Rehabilitation, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Guanglei Li
- Department of Neurological Intervention, The Second Hospital of Qinhuangdao, Qinhuangdao, Hebei 066600, P.R. China
| | - Lichun Wang
- Department of Rehabilitation, Cangzhou Hospital of Integrated Traditional Chinese and Western Medicine, Cangzhou, Hebei 061001, P.R. China
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304
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Sutherland AM, Clarke HA, Katz J, Katznelson R. Hyperbaric Oxygen Therapy: A New Treatment for Chronic Pain? Pain Pract 2015; 16:620-8. [PMID: 25988526 DOI: 10.1111/papr.12312] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 03/27/2015] [Indexed: 12/25/2022]
Abstract
BACKGROUND AND OBJECTIVE Hyperbaric oxygen therapy (HBOT) is a treatment providing 100% oxygen at a pressure greater than that at sea level. HBOT is becoming increasingly recognized as a potential treatment modality for a broad range of ailments, including chronic pain. In this narrative review, we discuss the current understanding of pathophysiology of nociceptive, inflammatory and neuropathic pain, and the body of animal studies addressing mechanisms by which HBOT may ameliorate these different types of pain. Finally, we review clinical studies suggesting that HBOT may be useful in treating chronic pain syndromes, including chronic headache, fibromyalgia, complex regional pain syndrome, and trigeminal neuralgia. DATABASE AND DATA TREATMENT A comprehensive search through MEDLINE, EMBASE, Scopus, and Web of Science for studies relating to HBOT and pain was performed using the following keywords: hyperbaric oxygen therapy or hyperbaric oxygen treatment (HBOT), nociceptive pain, inflammatory pain, neuropathic pain, HBOT AND pain, HBOT AND headache, HBOT AND fibromyalgia, HBOT AND complex regional pain syndrome, and HBOT AND trigeminal neuralgia. RESULTS Twenty-five studies examining the role of HBOT in animal models of pain and human clinical trials were found and reviewed for this narrative review. CONCLUSIONS HBOT has been shown to reduce pain using animal models. Early clinical research indicates HBOT may also be useful in modulating human pain; however, further studies are required to determine whether HBOT is a safe and efficacious treatment modality for chronic pain conditions.
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Affiliation(s)
- Ainsley M Sutherland
- Department of Anesthesia and Pain Management, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Hance A Clarke
- Department of Anesthesia and Pain Management, Toronto General Hospital, University Health Network, Toronto, ON, Canada
| | - Joel Katz
- Department of Anesthesia and Pain Management, Toronto General Hospital, University Health Network, Toronto, ON, Canada.,Department of Psychology, York University, Toronto, ON, Canada
| | - Rita Katznelson
- Department of Anesthesia and Pain Management, Toronto General Hospital, University Health Network, Toronto, ON, Canada.,Hyperbaric Medical Unit, Department of Anesthesia and Pain Management, Toronto General Hospital, Toronto, ON, Canada
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305
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De Wolf J, Fournier C, Surmei E, Bellier J, Porte HL. Conservatively Treated Extended Tracheal Necrosis Complicating Pharyngolaryngectomy. Ann Thorac Surg 2015; 99:1810-1. [DOI: 10.1016/j.athoracsur.2014.06.119] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2014] [Revised: 06/14/2014] [Accepted: 06/17/2014] [Indexed: 11/17/2022]
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306
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Dickhoff C, Daniels JMA, van den Brink A, Paul MA, Verhagen AFTM. Does hyperbaric oxygen therapy prevent airway anastomosis from breakdown? Ann Thorac Surg 2015; 99:682-5. [PMID: 25639406 DOI: 10.1016/j.athoracsur.2014.03.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 01/27/2014] [Accepted: 03/26/2014] [Indexed: 10/24/2022]
Abstract
Ischemia with subsequent necrosis of anastomoses, after central airway resection and reconstruction, remains a feared complication for thoracic surgeons and their patients. To date, there is no evidence to support the use of hyperbaric oxygen in the prevention of necrosis of airway reconstructions in humans. We present a patient who underwent central airway surgery with postoperative ischemia of an end-to-side anastomosis. Repeat visit to a hyperbaric oxygen chamber seemed to prevent the anastomosis from subsequent necrosis and dehiscence with complete healing as a result. In conclusion, hyperbaric oxygen treatment can be considered when ischemia or necrosis is observed in central airway anastomoses during postoperative bronchoscopic surveillance.
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Affiliation(s)
- Chris Dickhoff
- Department of Cardiothoracic Surgery, VU University Medical Centre, Amsterdam; Department of Surgery, VU University Medical Centre, Amsterdam.
| | | | - Ad van den Brink
- Department of Hyperbaric Medicine, Academic Medical Centre, Amsterdam
| | - Marinus A Paul
- Department of Cardiothoracic Surgery, VU University Medical Centre, Amsterdam
| | - Ad F T M Verhagen
- Department of Cardiothoracic Surgery, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
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307
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Parsi K, Hannaford P. Intra-arterial injection of sclerosants: Report of three cases treated with systemic steroids. Phlebology 2015; 31:241-50. [DOI: 10.1177/0268355515578988] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Intra-arterial injection of sclerosants is a significant but uncommon complication of sclerotherapy that may result in extensive tissue necrosis and in rare cases digit or limb amputation. We have managed three cases in the past 10 years. One patient was referred for immediate treatment following intra-arterial injection of liquid polidocanol. The other two had undergone foam sclerotherapy with polidocanol and sodium tetradecyl sulphate, respectively. All patients were treated with a combination of oral steroids (prednisone 0.5–1 mg/kg) and systemic anticoagulants (enoxaparin 1.5 mg/kg daily subcutaneous injection). One case progressed to skin ulceration where prednisone was started five days after the adverse event and prematurely stopped after four weeks. The other cases did not progress to necrosis or other long-term sequelae. In these patients, prednisone was commenced immediately and slowly reduced over the following 12 weeks. The inflammation that follows ischemia plays a significant role in tissue necrosis and the immediate management of this adverse event may benefit from anti-inflammatory measures and in particular systemic steroid therapy unless contraindicated.
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Affiliation(s)
- Kurosh Parsi
- Dermatology, Phlebology and Fluid Mechanics Research Laboratory, St Vincent’s Centre for Applied Medical Research (AMR), St. Vincent’s Hospital, Sydney, Australia
- Department of Dermatology, St. Vincent’s Hospital, Sydney, Australia
- University of New South Wales, Sydney, Australia
| | - Patricia Hannaford
- Dermatology, Phlebology and Fluid Mechanics Research Laboratory, St Vincent’s Centre for Applied Medical Research (AMR), St. Vincent’s Hospital, Sydney, Australia
- University of New South Wales, Sydney, Australia
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308
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Blatchley MR, Gerecht S. Acellular implantable and injectable hydrogels for vascular regeneration. Biomed Mater 2015; 10:034001. [DOI: 10.1088/1748-6041/10/3/034001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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309
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Schenck TL, Hopfner U, Chávez MN, Machens HG, Somlai-Schweiger I, Giunta RE, Bohne AV, Nickelsen J, Allende ML, Egaña JT. Photosynthetic biomaterials: a pathway towards autotrophic tissue engineering. Acta Biomater 2015; 15:39-47. [PMID: 25536030 DOI: 10.1016/j.actbio.2014.12.012] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 12/02/2014] [Accepted: 12/15/2014] [Indexed: 12/18/2022]
Abstract
Engineered tissues are highly limited by poor vascularization in vivo, leading to hypoxia. In order to overcome this challenge, we propose the use of photosynthetic biomaterials to provide oxygen. Since photosynthesis is the original source of oxygen for living organisms, we suggest that this could be a novel approach to provide a constant source of oxygen supply independently of blood perfusion. In this study we demonstrate that bioartificial scaffolds can be loaded with a solution containing the photosynthetic microalgae Chlamydomonas reinhardtii, showing high biocompatibility and photosynthetic activity in vitro. Furthermore, when photosynthetic biomaterials were engrafted in a mouse full skin defect, we observed that the presence of the microalgae did not trigger a native immune response in the host. Moreover, the analyses showed that the algae survived for at least 5 days in vivo, generating chimeric tissues comprised of algae and murine cells. The results of this study represent a crucial step towards the establishment of autotrophic tissue engineering approaches and suggest the use of photosynthetic cells to treat a broad spectrum of hypoxic conditions.
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Affiliation(s)
- Thilo Ludwig Schenck
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München, Germany
| | - Ursula Hopfner
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München, Germany
| | - Myra Noemi Chávez
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München, Germany
| | - Hans-Günther Machens
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München, Germany
| | - Ian Somlai-Schweiger
- Department of Nuclear Medicine, University Hospital rechts der Isar, Technische Universität München, Germany
| | - Riccardo Enzo Giunta
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München, Germany; Handchirurgie, Plastische Chirurgie, Ästhetische Chirurgie der Ludwig-Maximilians Universität München, Germany
| | - Alexandra Viola Bohne
- Molekulare Pflanzenwissenschaften, Biozentrum Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
| | - Jörg Nickelsen
- Molekulare Pflanzenwissenschaften, Biozentrum Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
| | - Miguel L Allende
- FONDAP Center for Genome Regulation, Faculty of Science, Universidad de Chile, Santiago, Chile
| | - José Tomás Egaña
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München, Germany; FONDAP Center for Genome Regulation, Faculty of Science, Universidad de Chile, Santiago, Chile.
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310
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Yazdanpanah L, Nasiri M, Adarvishi S. Literature review on the management of diabetic foot ulcer. World J Diabetes 2015; 6:37-53. [PMID: 25685277 PMCID: PMC4317316 DOI: 10.4239/wjd.v6.i1.37] [Citation(s) in RCA: 286] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 08/22/2014] [Accepted: 12/17/2014] [Indexed: 02/05/2023] Open
Abstract
Diabetic foot ulcer (DFU) is the most costly and devastating complication of diabetes mellitus, which affect 15% of diabetic patients during their lifetime. Based on National Institute for Health and Clinical Excellence strategies, early effective management of DFU can reduce the severity of complications such as preventable amputations and possible mortality, and also can improve overall quality of life. The management of DFU should be optimized by using a multidisciplinary team, due to a holistic approach to wound management is required. Based on studies, blood sugar control, wound debridement, advanced dressings and offloading modalities should always be a part of DFU management. Furthermore, surgery to heal chronic ulcer and prevent recurrence should be considered as an essential component of management in some cases. Also, hyperbaric oxygen therapy, electrical stimulation, negative pressure wound therapy, bio-engineered skin and growth factors could be used as adjunct therapies for rapid healing of DFU. So, it’s suggested that with appropriate patient education encourages them to regular foot care in order to prevent DFU and its complications.
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311
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Abstract
Abstract
Background:
Liver damage by ischemia and reperfusion injury is a risk factor for morbidity and mortality after liver surgery. Postoperative oxygen treatment is routinely applied in the postanesthesia and intensive care unit after liver surgery. The risks of aggravating the injury by increasing inspiratory oxygen from 21 to 60% in the postoperative period were investigated in mice.
Methods:
Parameters of liver injury were compared after induction of hepatic ischemia–reperfusion injury, by clamping the left liver lobe for 45 min, and reperfusion for 24 h either under normoxic (21% oxygen) or hyperoxic (60% oxygen) conditions (n = 22 per group). The extent of tissue injury and oxidative responses was analyzed in the presence or absence of polymorphonuclear leukocytes, functional Kupffer cells, and the p47phox unit of the nicotinamide adenine dinucleotide phosphate oxidase (n = 6 to 11 per group).
Results:
Compared with postoperative normoxic conditions, hyperoxia increased cell damage (glutamate-pyruvate transaminase: 1,870 [±968 SD] vs. 60% 2,981 [±1,038 SD], 21 vs. 60% oxygen, in U/l as mean ± SD; P < 0.01), liver weights (341 ± 52 vs. 383 ± 44, 21 vs. 60% oxygen, in mg as mean ± SD; P = 0.02), damage scores (1.9 ± 0.8 vs. 3.1 ± 1.0, 21 vs. 60% oxygen, score as mean ± SD; P = 0.02), and reactive oxygen species (15.0 ± 12.0 vs. 30.4 ± 19.2, 21 vs. 60% oxygen, in μmol/l as mean ± SD; P < 0.05). The aggravation of the tissue damaging effects as a result of hyperoxia was not seen in mice with depletions of polymorphonuclear leukocytes or Kupffer cells, or with nonfunctioning nicotinamide adenine dinucleotide phosphate oxidase.
Conclusion:
Liver injury after ischemia was significantly aggravated by hyperoxia as a consequence of immune cell-mediated oxidative burst. Further studies are needed to elucidate whether routine delivery of high inspirational oxygen concentrations postoperatively should be limited.
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312
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Langer V. Adjunctive treatment for leg ulcers. Indian Dermatol Online J 2014; 5:537-9. [PMID: 25396159 PMCID: PMC4228671 DOI: 10.4103/2229-5178.142563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Vijay Langer
- Department of Plastic Surgery, Army Hospital Research and Referral, New Delhi, India
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313
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Moon KC, Han SK, Lee YN, Jeong SH, Dhong ES, Kim WK. Effect of normobaric hyperoxic therapy on tissue oxygenation in diabetic feet: A pilot study. J Plast Reconstr Aesthet Surg 2014; 67:1580-6. [DOI: 10.1016/j.bjps.2014.07.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 05/20/2014] [Accepted: 07/06/2014] [Indexed: 11/16/2022]
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314
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Albenberg L, Esipova TV, Judge CP, Bittinger K, Chen J, Laughlin A, Grunberg S, Baldassano RN, Lewis JD, Li H, Thom SR, Bushman FD, Vinogradov SA, Wu GD. Correlation between intraluminal oxygen gradient and radial partitioning of intestinal microbiota. Gastroenterology 2014; 147:1055-63.e8. [PMID: 25046162 PMCID: PMC4252572 DOI: 10.1053/j.gastro.2014.07.020] [Citation(s) in RCA: 554] [Impact Index Per Article: 55.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 06/26/2014] [Accepted: 07/15/2014] [Indexed: 12/13/2022]
Abstract
BACKGROUND & AIMS The gut microbiota is a complex and densely populated community in a dynamic environment determined by host physiology. We investigated how intestinal oxygen levels affect the composition of the fecal and mucosally adherent microbiota. METHODS We used the phosphorescence quenching method and a specially designed intraluminal oxygen probe to dynamically quantify gut luminal oxygen levels in mice. 16S ribosomal RNA gene sequencing was used to characterize the microbiota in intestines of mice exposed to hyperbaric oxygen, human rectal biopsy and mucosal swab samples, and paired human stool samples. RESULTS Average Po2 values in the lumen of the cecum were extremely low (<1 mm Hg). In altering oxygenation of mouse intestines, we observed that oxygen diffused from intestinal tissue and established a radial gradient that extended from the tissue interface into the lumen. Increasing tissue oxygenation with hyperbaric oxygen altered the composition of the gut microbiota in mice. In human beings, 16S ribosomal RNA gene analyses showed an increased proportion of oxygen-tolerant organisms of the Proteobacteria and Actinobacteria phyla associated with rectal mucosa, compared with feces. A consortium of asaccharolytic bacteria of the Firmicute and Bacteroidetes phyla, which primarily metabolize peptones and amino acids, was associated primarily with mucus. This could be owing to the presence of proteinaceous substrates provided by mucus and the shedding of the intestinal epithelium. CONCLUSIONS In an analysis of intestinal microbiota of mice and human beings, we observed a radial gradient of microbes linked to the distribution of oxygen and nutrients provided by host tissue.
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Affiliation(s)
- L Albenberg
- Division of Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - TV Esipova
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - CP Judge
- Division of Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - K Bittinger
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - J Chen
- Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - A Laughlin
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - S Grunberg
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - RN Baldassano
- Division of Gastroenterology, Hepatology, and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - JD Lewis
- Division of Gastroenterology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104,Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - H Li
- Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - SR Thom
- Dept. of Emergency Medicine, University of Maryland, Baltimore, MD 21201
| | - FD Bushman
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - SA Vinogradov
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104,Correspondence: Gary D, Wu, MD, 915 BRB II/III, 421 Curie Blvd, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, Tel: 215-898-0158, Fax: 215-573-2024, , Sergei A. Vinogradov, PhD, 1013 Stellar-Chance Bldg., 422 Curie Blvd., Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, Tel: 215-573-7524,
| | - GD Wu
- Division of Gastroenterology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104,Correspondence: Gary D, Wu, MD, 915 BRB II/III, 421 Curie Blvd, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, Tel: 215-898-0158, Fax: 215-573-2024, , Sergei A. Vinogradov, PhD, 1013 Stellar-Chance Bldg., 422 Curie Blvd., Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, Tel: 215-573-7524,
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315
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Pezzoli M, Magnano M, Maffi L, Pezzoli L, Marcato P, Orione M, Cupi D, Bongioannini G. Hyperbaric oxygen therapy as salvage treatment for sudden sensorineural hearing loss: a prospective controlled study. Eur Arch Otorhinolaryngol 2014; 272:1659-66. [PMID: 25318685 DOI: 10.1007/s00405-014-2948-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Accepted: 02/08/2014] [Indexed: 10/24/2022]
Abstract
The most commonly used treatment for sensorineural sudden hearing loss (SSHL) in clinical practice is the administration of steroids; however, a favorable result is not always obtained. We studied 58 patients who failed to recover after primary treatment with IV steroids, 44 of these met our inclusion criteria (mean age 50.7, 27 males, range 30-74). We treated 23 patients (mean age 47.3, 16 males, age range 22-74) with hyperbaric oxygen therapy (HBO) (2.5 ATA for 60 min for 15 treatments), while 21 (mean age 54.5, 11 males, age range 22-71) patients refused to be treated and served as a non-randomized control group. Patients treated with HBO had a mean improvement of 15.6 dB (SD ± 15.3), with 1 of them completely healed, 5 with a good recovery, 10 with a fair recovery and 7 unchanged. Patients who were not treated had a spontaneous mean improvement of 5.0 dB (SD ± 11.4) with 3 patients with a good recovery, 1 patient with a fair recovery and 17 patients unchanged. Mean improvement was significantly better in patients treated with HBO compared to controls (p = 0.0133). Patients with worst hearing had the greater degree of improvement whether or not they were treated in the first 10 days after the onset of the hearing loss or between 11 and 30 days. In conclusion, hyperbaric oxygen therapy can lead to significant improvement of pure tone hearing thresholds in patients with SSHL who failed primary corticosteroid treatment and are within 4 weeks of the onset of deafness.
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Affiliation(s)
- M Pezzoli
- ENT Department, Hospital Mauriziano "Umberto I", Corso Re Umberto 109, 10128, Turin, Italy,
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316
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Tuk B, Tong M, Fijneman EMG, van Neck JW. Hyperbaric oxygen therapy to treat diabetes impaired wound healing in rats. PLoS One 2014; 9:e108533. [PMID: 25329176 PMCID: PMC4198078 DOI: 10.1371/journal.pone.0108533] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 08/21/2014] [Indexed: 01/20/2023] Open
Abstract
Wound healing in diabetes is frequently impaired and its treatment remains a challenge. Hyperbaric oxygen therapy (HBOT) receives a wide attendance and is often used as a last resort treatment option, however, its effectiveness for many conditions is unproven. We tested the effect of HBOT on healing of diabetic ulcers in an animal experimental setting. Experimental diabetes was induced by intraperitoneal injection of streptozotocin. Four weeks after diabetes induction, rats were ulcerated by clamping a pair of magnet disks on the dorsal skin for 16 h. After magnet removal, the animals received HBOT, daily on weekdays, for 4 weeks. To examine the effect of HBOT on diabetes impaired wound healing, the degree of wound tissue perfusion, inflammation, angiogenesis, and tissue breaking strength were evaluated. HBOT effects on the degree of inflammation and number of blood vessels could not be observed. HBOT improved the tissue breaking strength of the wound, however, this did not reach statistical significance. Twenty hours after ending the HBOT, a significantly improved oxygen saturation of the hemoglobin at the venous end of the capillaries and the quantity of hemoglobin in the micro-blood vessels was measured.
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Affiliation(s)
- Bastiaan Tuk
- Department of Plastic and Reconstructive Surgery, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - Miao Tong
- Department of Plastic and Reconstructive Surgery, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - Esther M. G. Fijneman
- Department of Plastic and Reconstructive Surgery, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
| | - Johan W. van Neck
- Department of Plastic and Reconstructive Surgery, Erasmus MC, University Medical Center, Rotterdam, the Netherlands
- * E-mail:
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317
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Kim HR, Kim JH, Choi EJ, Lee YK, Kie JH, Jang MH, Seoh JY. Hyperoxygenation attenuated a murine model of atopic dermatitis through raising skin level of ROS. PLoS One 2014; 9:e109297. [PMID: 25275529 PMCID: PMC4183587 DOI: 10.1371/journal.pone.0109297] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 08/30/2014] [Indexed: 11/25/2022] Open
Abstract
Atopic dermatitis (AD) is a chronic inflammatory skin disease resulting from excessive stimulation of immune cells. Traditionally, reactive oxygen species (ROS) have been implicated in the progression of inflammatory diseases, but several opposing observations suggest the protective role of ROS in inflammatory disease. Recently, we demonstrated ROS prevented imiquimod-induced psoriatic dermatitis through enhancing regulatory T cell function. Thus, we hypothesized AD might also be attenuated in elevated levels of ROS through tissue hyperoxygenation, such as by hyperbaric oxygen therapy (HBOT) or applying an oxygen-carrying chemical, perfluorodecalin (PFD). Elevated levels of ROS in the skin have been demonstrated directly by staining with dihydroethidum as well as indirectly by immunohistochemistry (IHC) for indoleamine 2,3-dioxygenase (IDO). A murine model of AD was developed by repeated application of a chemical irritant (1% 2,4-dinitrochlorobenzene) and house dust mite (Dermatophagoide farinae) extract on one ear of BALB/c mice. The results showed treatment with HBOT or PFD significantly attenuated AD, comparably with 0.1% prednicarbate without any signs of side effects, such as telangiectasia. The expressions of interleukin-17A and interferon-γ were also decreased in the AD lesions by treatment with HBOT or PFD. Enhanced expression of IDO and reduced level of hypoxia-inducible factor-1α, in association with increased frequency of FoxP3+ regulatory T cells in the AD lesions, might be involved in the underlying mechanism of oxygen therapy. Taken together, it was suggested that tissue hyperoxygenation, by HBOT or treatment with PFD, might attenuate AD through enhancing skin ROS level.
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Affiliation(s)
- Hyung-Ran Kim
- Department of Microbiology, Ewha Womans University Graduate School of Medicine, Seoul, Republic of Korea
| | - Jung-Hwan Kim
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, Republic of Korea
- Division of Integrative Biosciences and Biotechnology (IBB), Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Eun-Jeong Choi
- Department of Microbiology, Ewha Womans University Graduate School of Medicine, Seoul, Republic of Korea
| | - Yeo Kyong Lee
- Ewha Womans University High School, Seoul, Republic of Korea
| | - Jeong-Hae Kie
- Pathology, National Health Insurance Cooperation Ilsan Hospital, Koyang, Republic of Korea
| | - Myoung Ho Jang
- Academy of Immunology and Microbiology (AIM), Institute for Basic Science (IBS), Pohang, Republic of Korea
- Division of Integrative Biosciences and Biotechnology (IBB), Pohang University of Science and Technology, Pohang, Republic of Korea
- * E-mail: (MHJ); (JYS)
| | - Ju-Young Seoh
- Department of Microbiology, Ewha Womans University Graduate School of Medicine, Seoul, Republic of Korea
- * E-mail: (MHJ); (JYS)
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318
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Duan S, Shao G, Yu L, Ren C. Angiogenesis contributes to the neuroprotection induced by hyperbaric oxygen preconditioning against focal cerebral ischemia in rats. Int J Neurosci 2014; 125:625-34. [PMID: 25171223 DOI: 10.3109/00207454.2014.956101] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Ischemic stroke is one of the leading causes of mortality and disability worldwide. Previous studies have indicated that hyperbaric oxygen preconditioning (HBO-PC) can induce neuroprotection against focal cerebral ischemia. However, the underlying mechanisms are still not fully understood, and the optimal regimen for preconditioning must be confirmed. In the present study, we designed eight preconditioning regimens and compared their neuroprotective effects. Hyperbaric oxygen preconditioning every other day for there sessions exhibited the best neuroprotective effect; the infarct volume was reduced by almost 50% at 48 h after middle cerebral artery occlusion. We also found that HBO-PC significantly increased the microvessel density and the CD31-positive cells in the penumbra at 72 h after stroke. These results indicate that angiogenesis is involved in the neuroprotection induced by HBO-PC. Moreover, we explored the roles of HIF-1α and angiogenic factors in the angiogenesis process induced by HBO-PC. The results from western blotting demonstrated that protein expression of Ang-2 in the HBO-PC group was significantly increased. In conclusion, HBO-PC reduced brain injury and improved neurological function after focal cerebral ischemia, as partly mediated by the increased microvessel density in the penumbra, and this effect may result from the upregulation of Ang-2.
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Affiliation(s)
- Shanshan Duan
- 1Department of Neurology, Shanghai No. 5 Hospital, Fudan University, Shanghai, China
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319
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Liu S, Shen G, Deng S, Wang X, Wu Q, Guo A. Hyperbaric oxygen therapy improves cognitive functioning after brain injury. Neural Regen Res 2014; 8:3334-43. [PMID: 25206655 PMCID: PMC4145948 DOI: 10.3969/j.issn.1673-5374.2013.35.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 11/02/2013] [Indexed: 01/09/2023] Open
Abstract
Hyperbaric oxygen therapy has been widely applied and recognized in the treatment of brain injury; however, the correlation between the protective effect of hyperbaric oxygen therapy and changes of metabolites in the brain remains unclear. To investigate the effect and potential mechanism of hyperbaric oxygen therapy on cognitive functioning in rats, we established traumatic brain injury models using Feeney's free falling method. We treated rat models with hyperbaric oxygen therapy at 0.2 MPa for 60 minutes per day. The Morris water maze test for spatial navigation showed that the average escape latency was significantly prolonged and cognitive function decreased in rats with brain injury. After treatment with hyperbaric oxygen therapy for 1 and 2 weeks, the rats’ spatial learning and memory abilities were improved. Hydrogen proton magnetic resonance spectroscopy analysis showed that the N-acetylaspartate/creatine ratio in the hippocampal CA3 region was significantly increased at 1 week, and the N-acetylaspartate/choline ratio was significantly increased at 2 weeks after hyperbaric oxygen therapy. Nissl staining and immunohistochemical staining showed that the number of nerve cells and Nissl bodies in the hippocampal CA3 region was significantly increased, and glial fibrillary acidic protein positive cells were decreased after a 2-week hyperbaric oxygen therapy treatment. Our findings indicate that hyperbaric oxygen therapy significantly improves cognitive functioning in rats with traumatic brain injury, and the potential mechanism is mediated by metabolic changes and nerve cell restoration in the hippocampal CA3 region.
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Affiliation(s)
- Su Liu
- Department of Rehabilitation Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Guangyu Shen
- Department of Rehabilitation Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Shukun Deng
- Department of Rehabilitation Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Xiubin Wang
- Department of Imaging, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Qinfeng Wu
- Department of Rehabilitation Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
| | - Aisong Guo
- Department of Rehabilitation Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu Province, China
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320
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Xu Z, Wu L, Sun Y, Guo Y, Qin G, Mu S, Fan R, Wang B, Gao W, Zhang Z. Tanshinone IIA pretreatment protects free flaps against hypoxic injury by upregulating stem cell-related biomarkers in epithelial skin cells. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 14:331. [PMID: 25186638 PMCID: PMC4162953 DOI: 10.1186/1472-6882-14-331] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 08/27/2014] [Indexed: 12/29/2022]
Abstract
Background Partial or total flap necrosis after flap transplantation is sometimes encountered in reconstructive surgery, often as a result of a period of hypoxia that exceeds the tolerance of the flap tissue. The purpose of this study was to determine whether Tanshinone IIA (TSA) pretreatment can protect flap tissue against hypoxic injury and improve its viability. Methods Primary epithelial cells isolated from the dorsal skin of mice were pretreated with TSA for 2 weeks. Cell Counting Kit-8 and Trypan Blue assays were carried out to examine the proliferation of TSA-pretreated cells after exposure to cobalt chloride. Polymerase chain reaction and western blot analysis were used to assess the expression of β-catenin, vascular endothelial growth factor (VEGF), sex determining region Y-box 2 (SOX2), OCT4 (also known as POU domain class 5 transcription factor 1), Nanog, and glycogen synthase kinase-3 beta (GSK-3β) in TSA-treated cells. In other experiments, after mice were pretreated with TSA for 2 weeks, a reproducible ischemic flap model was implemented, and the area of surviving tissue in the transplanted flaps was measured. Immunohistochemistry was conducted to examine Wnt signaling as well as stem cell- and angiogenesis-related biomarkers in epithelial tissue in vivo. Results Epidermal cells, pretreated with TSA, showed enhanced resistance to hypoxia. Activation of the Wnt signaling pathway in TSA-pretreated cells was characterized by the upregulation of β-catenin and the downregulation of GSK-3β. The expression of SOX2, Nanog, and OCT4 were also higher in TSA-pretreated epithelial cells than in control cells. In the reproducible ischemic flap model, pretreatment with TSA enhanced resistance to hypoxia and increased the area of surviving tissue in transplanted flaps. The expression of Wnt signaling pathway components, stem-cell related biomarkers, and VEGF and CD34, which are involved in the regeneration of blood vessels, was also upregulated in TSA-pretreated flap tissue. Conclusions TSA pretreatment protects free flaps against hypoxic injury and increases the area of surviving tissue by activating Wnt signaling and upregulating stem cell-related biomarkers.
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Ding Z, Tong WC, Lu XX, Peng HP. Hyperbaric oxygen therapy in acute ischemic stroke: a review. INTERVENTIONAL NEUROLOGY 2014; 2:201-11. [PMID: 25337089 PMCID: PMC4188156 DOI: 10.1159/000362677] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Stroke, also known as cerebrovascular disease, is a common and serious neurological disease, which is also the fourth leading cause of death in the United States so far. Hyperbaric medicine, as an emerging interdisciplinary subject, has been applied in the treatment of cerebral vascular diseases since the 1960s. Now it is widely used to treat a variety of clinical disorders, especially hypoxia-induced disorders. However, owing to the complex mechanisms of hyperbaric oxygen (HBO) treatment, the therapeutic time window and the undefined dose as well as some common clinical side effects (such as middle ear barotrauma), the widespread promotion and application of HBO was hindered, slowing down the hyperbaric medicine development. In August 2013, the US Food and Drug Administration declared artery occlusion as one of the 13 specific indications for HBO therapy. This provides opportunities, to some extent, for the further development of hyperbaric medicine. Currently, the mechanisms of HBO therapy for ischemic stroke are still not very clear. This review focuses on the potential mechanisms of HBO therapy in acute ischemic stroke as well as the time window.
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Affiliation(s)
- Zheng Ding
- Department of Hyperbaric Oxygen, Fuzhou General Hospital of Nanjing Command, PLA, Fuzhou, China
| | - Wesley C. Tong
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiao-Xin Lu
- Department of Hyperbaric Oxygen, Fuzhou General Hospital of Nanjing Command, PLA, Fuzhou, China
| | - Hui-Ping Peng
- Department of Hyperbaric Oxygen, Fuzhou General Hospital of Nanjing Command, PLA, Fuzhou, China
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323
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Xu J, Huang G, Zhang K, Sun J, Xu T, Li R, Tao H, Xu W. Nrf2 activation in astrocytes contributes to spinal cord ischemic tolerance induced by hyperbaric oxygen preconditioning. J Neurotrauma 2014; 31:1343-53. [PMID: 24716787 DOI: 10.1089/neu.2013.3222] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
In this study, we investigated whether nuclear factor erythroid 2-related factor 2 (Nrf2) activation in astrocytes contributes to the neuroprotection induced by a single hyperbaric oxygen preconditioning (HBO-PC) against spinal cord ischemia/reperfusion (SCIR) injury. In vivo: At 24 h after a single HBO-PC at 2.5 atmospheres absolute for 90 min, the male ICR mice underwent SCIR injury by aortic cross-clamping surgery and observed for 48 h. HBO-PC significantly improved hindlimb motor function, reduced secondary spinal cord edema, ameliorated the reactivity of spinal motor-evoked potentials, and slowed down the process of apoptosis to exert neuroprotective effects against SCIR injury. At 12 h or 24 h after HBO-PC without aortic cross-clamping surgery, Western blot, enzyme-linked immunosorbent assay, realtime-polymerase chain reaction and double-immunofluorescence staining were used to detect the Nrf2 activity of spinal cord tissue, such as mRNA level, protein content, DNA binding activity, and the expression of downstream gene, such as glutamate-cysteine ligase, γ-glutamyltransferase, multidrug resistance protein 1, which are key proteins for intracellular glutathione synthesis and transit. The Nrf2 activity and downstream genes expression were all enhanced in normal spinal cord with HBO-PC. Glutathione content of spinal cord tissue with HBO-PC significantly increased at all time points after SCIR injury. Moreover, Nrf2 overexpression mainly occurs in astrocytes. In vitro: At 24 h after HBO-PC, the primary spinal astrocyte-neuron co-cultures from ICR mouse pups were subjected to oxygen-glucose deprivation (OGD) for 90 min to simulate the ischemia-reperfusion injury. HBO-PC significantly increased the survival rate of neurons and the glutathione content in culture medium, which was mainly released from asctrocytes. Moreover, the Nrf2 activity and downstream genes expression induced by HBO-PC were mainly enhanced in astrocytes, but not in neurons. In conclusion, our findings demonstrated that spinal cord ischemic tolerance induced by HBO-PC may be mainly related to Nrf2 activation in astrocytes.
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Affiliation(s)
- Jiajun Xu
- 1 Department of Diving and Hyperbaric Medicine, College of Naval Medicine, the Second Military Medical University , Shanghai, China
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324
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Successful bilateral composite ear reattachment. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2014; 2:e174. [PMID: 25289367 PMCID: PMC4174246 DOI: 10.1097/gox.0000000000000123] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 04/29/2014] [Indexed: 01/02/2023]
Abstract
Summary: A successful bilateral ear composite graft nonmicrosurgical reattachment is presented. In cases where suitable vessels are unavailable for microsurgical revascularization, the reconstructive challenge can be formidable for salvaging the unique anatomic and aesthetic structure of the ear. The case is presented of an 18-year-old woman who was a victim of an assault wherein both of her ears were intentionally amputated by her attacker. She underwent successful surgical reattachment followed by a postoperative regimen of hyperbaric oxygen, cooling, and meticulous wound care. The patient achieved 100% survival of her left ear graft and 95% survival of her right ear graft. Clinical photographs at 18 months are presented, along with a discussion of the possible implications for other reconstructive applications.
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325
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A novel technique for increasing skin oxygenation. Adv Skin Wound Care 2014; 27:324-7. [PMID: 24932953 DOI: 10.1097/01.asw.0000449758.85836.1e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To develop a novel technique for increasing skin oxygenation based on diffusion principles and Fick's laws of diffusion. METHODS A device that allows the creation of an oxygen-depleted environment immediately to the skin while simultaneously allowing measurement of the transcutaneous oxygen tension (TcPo2) levels was created. This device forms an oxygen gradient from the capillary bed of the subcutaneous tissue, through the skin's semipermeable membrane, and toward the oxygen-depleted enclosed environment. A healthy adult subject was fitted with the device. Once baseline TcPo2 levels were recorded, the oxygen concentration within the device was lowered, and TcPo2 levels were monitored. Effects were also studied when subjects breathed 100% oxygen for 5 minutes. RESULTS Oxygen levels in the device decreased in accordance with increases in skin TcPo2 levels measured within the device. CONCLUSIONS The application of this technique results in an increase in oxygen concentration in the skin and subcutaneous tissue in healthy subjects with normal, well-perfused skin. Whether this novel technique produces an increase in the skin oxygenation of subjects with inappropriate tissue oxygenation and chronic wounds requires further study.
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326
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Dulai PS, Gleeson MW, Taylor D, Holubar SD, Buckey JC, Siegel CA. Systematic review: The safety and efficacy of hyperbaric oxygen therapy for inflammatory bowel disease. Aliment Pharmacol Ther 2014; 39:1266-75. [PMID: 24738651 DOI: 10.1111/apt.12753] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 12/02/2013] [Accepted: 03/25/2014] [Indexed: 12/23/2022]
Abstract
BACKGROUND Hyperbaric oxygen therapy (HBOT) provides 100% oxygen under pressure, which increases tissue oxygen levels, relieves hypoxia and alters inflammatory pathways. Although there is experience using HBOT in Crohn's disease and ulcerative colitis, the safety and overall efficacy of HBOT in inflammatory bowel disease (IBD) is unknown. AIM To quantify the safety and efficacy of HBOT for Crohn's disease (CD) and ulcerative colitis (UC). The rate of adverse events with HBOT for IBD was compared to the expected rate of adverse events with HBOT. METHODS MEDLINE, EMBASE, Cochrane Collaboration and Web of Knowledge were systematically searched using the PRISMA standards for systematic reviews. Seventeen studies involving 613 patients (286 CD, 327 UC) were included. RESULTS The overall response rate was 86% (85% CD, 88% UC). The overall response rate for perineal CD was 88% (18/40 complete healing, 17/40 partial healing). Of the 40 UC patients with endoscopic follow-up reported, the overall response rate to HBOT was 100%. During the 8924 treatments, there were a total of nine adverse events, six of which were serious. The rate of adverse events with HBOT in IBD is lower than that seen when utilising HBOT for other indications (P < 0.01). The risk of bias across studies was high. CONCLUSIONS Hyperbaric oxygen therapy is a relatively safe and potentially efficacious treatment option for IBD patients. To understand the true benefit of HBOT in IBD, well-controlled, blinded, randomised trials are needed for both Crohn's disease and ulcerative colitis.
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Affiliation(s)
- P S Dulai
- Inflammatory Bowel Disease Center, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA; Center for Hyperbaric Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
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327
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Heyboer M, Grant WD, Byrne J, Pons P, Morgan M, Iqbal B, Wojcik SM. Hyperbaric oxygen for the treatment of nonhealing arterial insufficiency ulcers. Wound Repair Regen 2014; 22:351-5. [DOI: 10.1111/wrr.12176] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 03/05/2014] [Indexed: 11/29/2022]
Affiliation(s)
- Marvin Heyboer
- Department of Emergency Medicine, Division of Hyperbaric Medicine and Wound Care; SUNY Upstate Medical University; Syracuse New York
| | - William D. Grant
- Department of Emergency Medicine, Division of Hyperbaric Medicine and Wound Care; SUNY Upstate Medical University; Syracuse New York
| | - Joseph Byrne
- Center for Wound Care and Hyperbaric Medicine; St. Joseph's Hospital; Fayetteville New York
| | - Paula Pons
- Center for Wound Care and Hyperbaric Medicine; St. Joseph's Hospital; Fayetteville New York
| | - Monica Morgan
- Department of Emergency Medicine, Division of Hyperbaric Medicine and Wound Care; SUNY Upstate Medical University; Syracuse New York
| | - Bilal Iqbal
- School of Medicine; SUNY Upstate Medical University; Syracuse
| | - Susan M. Wojcik
- Department of Emergency Medicine, Division of Hyperbaric Medicine and Wound Care; SUNY Upstate Medical University; Syracuse New York
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328
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Doguchi H, Saio M, Kuniyoshi S, Matsuzaki A, Yoshimi N. The enhancing effects of hyperbaric oxygen on mouse skin carcinogenesis. J Toxicol Pathol 2014; 27:67-72. [PMID: 24791069 PMCID: PMC4000075 DOI: 10.1293/tox.2013-0046] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2013] [Accepted: 12/05/2013] [Indexed: 12/29/2022] Open
Abstract
The effects of hyperbaric oxygen (HBO) on mouse skin two-stage chemical carcinogenesis were examined. Six-week-old inbred CD-1 female mice were divided into the following five groups: group 1, normoxia and application of 25 nmol 7,12-dimethylbenz[a]anthracene (DMBA) and 8.5 nmol 12-O-tetradecanoylphorbol-13-acetate (TPA) (n=19); group 2, HBO and DMBA/TPA (n=21); group 3, HBO and DMBA/acetone (n=3); group 4, normoxia and acetone (n=3); and group 5, non-treatment group (n=5). HBO was started at the same time as DMBA. Mice were euthanized at 23 weeks after the start of the experiment. Mice in group 2 showed the occurrence of tumors at 8 weeks after the beginning of the experiment, while the occurrence of tumors in mice in group 1 was observed beginning at 9 weeks. There was a difference in occurrence among low-grade papillomas, high-grade papillomas and SCCs in both groups 1 and 2 by the χ (2)-test at end of the experiment (p<0.05). The Ki-67 labeling indices of tumors revealed that the percentages of positive cells in low-grade papillomas in groups 1 and 2 were 15.27 ± 2.54% and 29.67 ± 2.82%, respectively (p<0.01). The results suggested that the tumors in group 2, which was treated with HBO, were more progressive than those in group 1, which was not treated with HBO. In this study, HBO accelerated tumor cell proliferation and advanced tumor progression in skin carcinogenesis by DMBA/TPA.
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Affiliation(s)
- Hiroshi Doguchi
- Department of Pathology and Oncology, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa 903-0125, Japan
| | - Masanao Saio
- Department of Pathology and Oncology, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa 903-0125, Japan
| | - Shimpei Kuniyoshi
- Department of Pathology and Oncology, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa 903-0125, Japan
| | - Akiko Matsuzaki
- Department of Pathology and Oncology, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa 903-0125, Japan
| | - Naoki Yoshimi
- Department of Pathology and Oncology, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa 903-0125, Japan
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Abstract
This article presents a pilot study to determine the value of hyperbaric oxygenation (HBO₂) in the acute management of neonatal hypoxia (hypoxic ischemic encephalopathy) and necrotizing enterocolitis. Neonates with hypoxic-ischemic encephalopathy and NE were treated in a Sechrist monoplace chamber. Electroencephalogram, evoked potential, ophthalmic evaluation, ultrasonograph, laboratory exams, and radiographs were obtained before and after HBO₂. Treatment protocol was 2.0 atm abs/45 minutes. Preventive myringotomies were conducted in all patients. A follow-up was done at 3 and 6 months. All patients (n = 8) were ventilator-dependent and required bag-valve-mask ventilation by a neonatologist during the treatment. All showed a resolution after HBO₂. There was also a dramatic improvement (P < .05) in hemoglobin, hematocrit, total proteins, serum sodium, triglycerides, and pH. There were favorable changes in all other studies although they did not meet statistical significance. There was a marked reduction of the morbidity and mortality. There were no adverse effects on the ophthalmologic or Central Nervous System. When used promptly, HBO₂ can modify the local and systemic inflammatory response caused by intestinal inflammation or cerebral or systemic hypoxia. It helps to preserve the marginal tissue and recover the ischemic and metabolic penumbra. This pilot study suggests that HBO₂ could be a safe and effective treatment in the acute management of neonatal necrotizing enterocolitis or hypoxic ischemic encephalopathy. There is a need for a prospective, randomized, controlled, and double-blinded study to determine the real use of HBO₂ in these cases.
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Linden R, LeDez K, Hopf H, Fife C. Topical Oxygen Therapy is not Hyperbaric Therapy and the Two Treatments Should Not be Confused. Int Wound J 2014; 11:230-1. [DOI: 10.1111/j.1742-481x.2012.01069.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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331
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Kim HR, Lee A, Choi EJ, Hong MP, Kie JH, Lim W, Lee HK, Moon BI, Seoh JY. Reactive oxygen species prevent imiquimod-induced psoriatic dermatitis through enhancing regulatory T cell function. PLoS One 2014; 9:e91146. [PMID: 24608112 PMCID: PMC3946742 DOI: 10.1371/journal.pone.0091146] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Accepted: 02/07/2014] [Indexed: 11/29/2022] Open
Abstract
Psoriasis is a chronic inflammatory skin disease resulting from immune dysregulation. Regulatory T cells (Tregs) are important in the prevention of psoriasis. Traditionally, reactive oxygen species (ROS) are known to be implicated in the progression of inflammatory diseases, including psoriasis, but many recent studies suggested the protective role of ROS in immune-mediated diseases. In particular, severe cases of psoriasis vulgaris have been reported to be successfully treated by hyperbaric oxygen therapy (HBOT), which raises tissue level of ROS. Also it was reported that Treg function was closely associated with ROS level. However, it has been only investigated in lowered levels of ROS so far. Thus, in this study, to clarify the relationship between ROS level and Treg function, as well as their role in the pathogenesis of psoriasis, we investigated imiquimod-induced psoriatic dermatitis (PD) in association with Treg function both in elevated and lowered levels of ROS by using knockout mice, such as glutathione peroxidase-1−/− and neutrophil cytosolic factor-1−/− mice, as well as by using HBOT or chemicals, such as 2,3-dimethoxy-1,4-naphthoquinone and N-acetylcysteine. The results consistently showed Tregs were hyperfunctional in elevated levels of ROS, whereas hypofunctional in lowered levels of ROS. In addition, imiquimod-induced PD was attenuated in elevated levels of ROS, whereas aggravated in lowered levels of ROS. For the molecular mechanism that may link ROS level and Treg function, we investigated the expression of an immunoregulatory enzyme, indoleamine 2,3-dioxygenase (IDO) which is induced by ROS, in PD lesions. Taken together, it was implied that appropriately elevated levels of ROS might prevent psoriasis through enhancing IDO expression and Treg function.
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Affiliation(s)
- Hyung-Ran Kim
- Department of Microbiology, Ewha Womans University Graduate School of Medicine, Seoul, Korea
| | - Anbok Lee
- Department of Surgery, Ewha Womans University Graduate School of Medicine, Seoul, Korea
| | - Eun-Jeong Choi
- Department of Microbiology, Ewha Womans University Graduate School of Medicine, Seoul, Korea
| | - Min-Pyo Hong
- College of Arts and Sciences, Boston College, Chestnut Hill, Massachusetts, United States of America
| | - Jeong-Hae Kie
- Pathology, National Health Insurance Cooperation Ilsan Hospital, Koyang, Korea
| | - Woosung Lim
- Department of Surgery, Ewha Womans University Graduate School of Medicine, Seoul, Korea
| | - Hyeon Kook Lee
- Department of Surgery, Ewha Womans University Graduate School of Medicine, Seoul, Korea
| | - Byung-In Moon
- Department of Surgery, Ewha Womans University Graduate School of Medicine, Seoul, Korea
| | - Ju-Young Seoh
- Department of Microbiology, Ewha Womans University Graduate School of Medicine, Seoul, Korea
- * E-mail:
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332
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Hyperbaric oxygen therapy for the treatment of anastomotic complications after tracheal resection and reconstruction. J Thorac Cardiovasc Surg 2014; 147:1030-5. [DOI: 10.1016/j.jtcvs.2013.11.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 10/09/2013] [Accepted: 11/08/2013] [Indexed: 11/21/2022]
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Prabowo S, Nataatmadja M, Hadi JP, Dikman I, Handajani F, Tehupuring SEJ, Soetarso I, Suryokusumo MG, Aulanni’am A, Herawati A, West M. Hyperbaric Oxygen Treatment in a Diabetic Rat Model Is Associated with a Decrease in Blood Glucose, Regression of Organ Damage and Improvement in Wound Healing. Health (London) 2014. [DOI: 10.4236/health.2014.615228] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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335
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Silveira MRGD, Margarido MR, Vanni JC, Nejo Junior R, Castro-e-Silva OD. Effects of hyperbaric oxygen therapy on the liver after injury caused by the hepatic ischemia-reperfusion process. Acta Cir Bras 2014; 29 Suppl 1:29-33. [DOI: 10.1590/s0102-86502014001300006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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336
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Losada DM, Chies AB, Feres O, Chaib E, D'Albuquerque LAC, Castro-e-Silva O. Effects of hyperbaric oxygen therapy as hepatic preconditioning in rats submitted to hepatic ischemia/reperfusion injury. Acta Cir Bras 2014; 29 Suppl 2:61-6. [DOI: 10.1590/s0102-8650201400140012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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337
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Abstract
Oxygen treatment has been a cornerstone of acute medical care for numerous pathological states. Initially, this was supported by the assumed need to avoid hypoxaemia and tissue hypoxia. Most acute treatment algorithms, therefore, recommended the liberal use of a high fraction of inspired oxygen, often without first confirming the presence of a hypoxic insult. However, recent physiological research has underlined the vasoconstrictor effects of hyperoxia on normal vasculature and, consequently, the risk of significant blood flow reduction to the at-risk tissue. Positive effects may be claimed simply by relief of an assumed local tissue hypoxia, such as in acute cardiovascular disease, brain ischaemia due to, for example, stroke or shock or carbon monoxide intoxication. However, in most situations, a generalized hypoxia is not the problem and a risk of negative hyperoxaemia-induced local vasoconstriction effects may instead be the reality. In preclinical studies, many important positive anti-inflammatory effects of both normobaric and hyperbaric oxygen have been repeatedly shown, often as surrogate end-points such as increases in gluthatione levels, reduced lipid peroxidation and neutrophil activation thus modifying ischaemia-reperfusion injury and also causing anti-apoptotic effects. However, in parallel, toxic effects of oxygen are also well known, including induced mucosal inflammation, pneumonitis and retrolental fibroplasia. Examining the available 'strong' clinical evidence, such as usually claimed for randomized controlled trials, few positive studies stand up to scrutiny and a number of trials have shown no effect or even been terminated early due to worse outcomes in the oxygen treatment arm. Recently, this has led to less aggressive approaches, even to not providing any supplemental oxygen, in several acute care settings, such as resuscitation of asphyxiated newborns, during acute myocardial infarction or after stroke or cardiac arrest. The safety of more advanced attempts to deliver increased oxygen levels to hypoxic or ischaemic tissues, such as with hyperbaric oxygen therapy, is therefore also being questioned. Here, we provide an overview of the present knowledge of the physiological effects of oxygen in relation to its therapeutic potential for different medical conditions, as well as considering the potential for harm. We conclude that the medical use of oxygen needs to be further examined in search of solid evidence of benefit in many of the current clinical settings in which it is routinely used.
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Affiliation(s)
- F Sjöberg
- Departments of Hand and Plastic Surgery and Intensive Care, Burn Center, Linköping County Council, Linköping, Sweden; Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
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338
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Aldhuhoori SS, Bachet J, Sayad AE, Eissa M. Successful total replantation of a forearm after 11 hours of warm ischaemia. TRAUMA-ENGLAND 2013. [DOI: 10.1177/1460408613512942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We present a case of a young female patient who underwent total replantation of an amputated forearm after 11 h of warm ischaemia. The immediate and long-term outcome of the procedure was totally satisfactory in terms of limb survival and satisfactory enough in terms of functionality. This outcome was due in part to the use of post-operative hyperbaric oxygen therapy, to minimize the effects of ischaemia-reperfusion injury. Considering that replantation of amputated limbs usually results in poor outcomes after 6 h of ischaemia, the present success represents a rare case.
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Affiliation(s)
- SS Aldhuhoori
- Department of Orthopaedic Surgery, Zayed Military Hospital, Abu Dhabi, UAE
| | - J Bachet
- Department of Cardiovascular Surgery, Zayed Military Hospital, Abu Dhabi, UAE
| | - A El Sayad
- Department of Orthopaedic Surgery, Zayed Military Hospital, Abu Dhabi, UAE
| | - M Eissa
- Department of Plastic and Reconstructive Surgery, Zayed Military Hospital, Abu Dhabi, UAE
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339
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Drenjancevic I, Kibel A. Restoring Vascular Function with Hyperbaric Oxygen Treatment: Recovery Mechanisms. J Vasc Res 2013; 51:1-13. [DOI: 10.1159/000355925] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Accepted: 09/05/2013] [Indexed: 11/19/2022] Open
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340
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Liu W, Liu K, Tao H, Chen C, Zhang JH, Sun X. Hyperoxia preconditioning: the next frontier in neurology? Neurol Res 2013; 34:415-21. [DOI: 10.1179/1743132812y.0000000034] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Wenwu Liu
- Department of Diving MedicineThe Second Military Medical University, Shanghai, China
| | - Kan Liu
- Department of Diving MedicineThe Second Military Medical University, Shanghai, China
| | - Hengyi Tao
- Department of Diving MedicineThe Second Military Medical University, Shanghai, China
| | - Chunhua Chen
- Department of Anatomy and EmbryologyPeking University Health Science Center, Beijing, China
| | - John H Zhang
- Department of AnesthesiologyLoma Linda Medical Center, Loma Linda, CA, USA
| | - Xuejun Sun
- Department of Diving MedicineThe Second Military Medical University, Shanghai, China
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341
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Abstract
Hyperbaric oxygen therapy (HBOT), the administration of pressurized 100% oxygen, is used as an adjunct to aid healing in selected chronic wounds. Though the therapy has had a controversial history, research is now elucidating the mechanisms by which HBOT helps to heal wounds. HBOT increases growth factors and local wound signaling, while also promoting a central stem cell release of endothelial progenitor cells from the bone marrow via nitric oxide pathways. The clinical data continue to accumulate in support of HBOT to help hasten wound healing, and reduce the amputation rate in diabetic ulcers. In appropriate patients, HBOT is an effective, noninvasive, adjunct modality that can be used to hasten chronic wound healing.
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Affiliation(s)
- Lee J Goldstein
- Division of Vascular and Endovascular Surgery, DeWitt Daughtry Family Department of Surgery, University of Miami, Miami, Florida 33169, USA.
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342
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Li J, Ollague Sierra J, Zhu L, Tang L, Rahill K, El-Sabawi B, Liu-Mares W, Mertz PM, Davis SC. Effects of a topical aqueous oxygen emulsion on collagen deposition and angiogenesis in a porcine deep partial-thickness wound model. Exp Dermatol 2013; 22:674-6. [DOI: 10.1111/exd.12225] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Jie Li
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Jose Ollague Sierra
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Linjian Zhu
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Ling Tang
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Kirah Rahill
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Bassim El-Sabawi
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Wen Liu-Mares
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Patricia M. Mertz
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
| | - Stephen C. Davis
- Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; FL; USA
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343
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Ward CL, Corona BT, Yoo JJ, Harrison BS, Christ GJ. Oxygen generating biomaterials preserve skeletal muscle homeostasis under hypoxic and ischemic conditions. PLoS One 2013; 8:e72485. [PMID: 23991116 PMCID: PMC3753241 DOI: 10.1371/journal.pone.0072485] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 07/09/2013] [Indexed: 11/26/2022] Open
Abstract
Provision of supplemental oxygen to maintain soft tissue viability acutely following trauma in which vascularization has been compromised would be beneficial for limb and tissue salvage. For this application, an oxygen generating biomaterial that may be injected directly into the soft tissue could provide an unprecedented treatment in the acute trauma setting. The purpose of the current investigation was to determine if sodium percarbonate (SPO), an oxygen generating biomaterial, is capable of maintaining resting skeletal muscle homeostasis under otherwise hypoxic conditions. In the current studies, a biologically and physiologically compatible range of SPO (1-2 mg/mL) was shown to: 1) improve the maintenance of contractility and attenuate the accumulation of HIF1α, depletion of intramuscular glycogen, and oxidative stress (lipid peroxidation) that occurred following ∼30 minutes of hypoxia in primarily resting (duty cycle = 0.2 s train/120 s contraction interval <0.002) rat extensor digitorum longus (EDL) muscles in vitro (95% N2-5% CO2, 37°C); 2) attenuate elevations of rat EDL muscle resting tension that occurred during contractile fatigue testing (3 bouts of 25 100 Hz tetanic contractions; duty cycle = 0.2 s/2 s = 0.1) under oxygenated conditions in vitro (95% O2-5% CO2, 37°C); and 3) improve the maintenance of contractility (in vivo) and prevent glycogen depletion in rat tibialis anterior (TA) muscle in a hindlimb ischemia model (i.e., ligation of the iliac artery). Additionally, injection of a commercially available lipid oxygen-carrying compound or the components (sodium bicarbonate and hydrogen peroxide) of 1 mg/mL SPO did not improve EDL muscle contractility under hypoxic conditions in vitro. Collectively, these findings demonstrate that a biological and physiological concentration of SPO (1-2 mg/mL) injected directly into rat skeletal muscle (EDL or TA muscles) can partially preserve resting skeletal muscle homeostasis under hypoxic conditions.
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Affiliation(s)
- Catherine L. Ward
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States of America
| | - Benjamin T. Corona
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States of America
| | - James J. Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States of America
| | - Benjamin S. Harrison
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States of America
| | - George J. Christ
- Wake Forest Institute for Regenerative Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States of America
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344
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Liu X, Liang F, Yang J, Li Z, Hou X, Wang Y, Gao C. Effects of stromal cell derived factor-1 and CXCR4 on the promotion of neovascularization by hyperbaric oxygen treatment in skin flaps. Mol Med Rep 2013; 8:1118-24. [PMID: 23969990 DOI: 10.3892/mmr.2013.1638] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Accepted: 08/08/2013] [Indexed: 02/06/2023] Open
Abstract
Hyperbaric oxygen (HBO) is known to increase the survival of skin flaps by promoting neovascularization; however, the detailed mechanisms involved are not fully understood. In the present study, we aimed to characterize the effects of HBO treatment on neovascularization and skin flap survival. We also analyzed the mechanisms associated with the expression of angiogenic molecules, such as stromal cell derived factor-1 (SDF‑1) and its specific receptor CXCR4, to assess the effects of SDF-1 and CXCR4 on the promotion of neovascularization by HBO treatment in skin flaps. The epigastric pedicle skin flap model was established in rats that were randomly divided into the following groups: i) sham‑operated (SH group); ii) ischemia followed by reperfusion and analysis on the third and fifth day (IR3d and IR5d groups, respectively) postoperatively; iii) ischemia followed by reperfusion, HBO treatment and analysis on the third and fifth day (HBO3d and HBO5d groups, respectively) postoperatively. In the two HBO groups, animals received 1 h of HBO treatment in a 2.0 ATA chamber with 100% O2 twice per day for 3 days and then daily for 2 consecutive days following surgery. On the postoperative third and fifth day, skin flap survival measurement, histological analysis, immunohistochemical staining and western blotting for SDF‑1 and CXCR4 expression, were performed. Compared with those of the IR groups, skin flap survival, microvessel density (MVD) and expression of SDF‑1 and CXCR4 proteins were significantly increased in the HBO groups. Pearson's correlation analysis demonstrated a positive correlation between MVD and the high expression of SDF‑1 and CXCR4 following HBO treatment. Results of this study suggested that the effects of HBO treatment in promoting neovascularization may be explained by the upregulation of SDF‑1 and CXCR4 expression in the skin flaps of rats.
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Affiliation(s)
- Xuehua Liu
- Department of Hyperbaric Oxygen, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, P.R. China
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345
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Hyperbaric oxygen stimulates vascularization and bone formation in rat calvarial defects. Int J Oral Maxillofac Surg 2013; 42:907-14. [DOI: 10.1016/j.ijom.2013.01.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Revised: 12/05/2012] [Accepted: 01/09/2013] [Indexed: 11/19/2022]
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346
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Adjunct methods of the standard diabetic foot ulceration therapy. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:243568. [PMID: 23843866 PMCID: PMC3697296 DOI: 10.1155/2013/243568] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 05/13/2013] [Accepted: 05/29/2013] [Indexed: 01/28/2023]
Abstract
The outcome of management of diabetic foot ulceration (DFU) is poor and insufficient. DFU therapy includes the standard management as debridement of the wound, revascularization procedures, off-loading of the ulcer and antibacterial actions, and supplementation of growth factors and cytokines, leading to stimulation of granulation, epidermization, and angiogenesis.
The aim of the present review is to summarize the adjunct methods of the standard DFU therapy as hyperbaric oxygen therapy (HBOT), maggot therapy (MT), and platelet-rich plasma therapy (PRPT). The results of preclinical and clinical trials indicated that the methods may reduce time of therapy, short-term morbidity, and the risk of major amputation.
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347
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Zhang Y, Lv Y, Liu YJ, Yang C, Hu HJ, Meng XE, Li MX, Pan SY. Hyperbaric oxygen therapy in rats attenuates ischemia-reperfusion testicular injury through blockade of oxidative stress, suppression of inflammation, and reduction of nitric oxide formation. Urology 2013; 82:489.e9-489.e15. [PMID: 23769121 DOI: 10.1016/j.urology.2013.04.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 02/22/2013] [Accepted: 04/09/2013] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To evaluate the therapeutic utility of hyperbaric oxygen (HBO) therapy on testicular ischemia/reperfusion (I/R) injury and elucidate the underlying molecular mechanism, we tested whether HBO therapy provided rescue of the testes after torsion in rats. METHODS Sprague-Dawley rats were randomly divided into 4 groups: control group, control plus HBO therapy, I/R group, and I/R plus HBO therapy. The I/R model was induced by torsion of the right testis. RESULTS I/R in the testis resulted in disrupted seminiferous tubules, germ cell-specific apoptosis, followed by a marked reduction in testis weight and daily sperm production. HBO therapy preserved seminiferous tubules, suppressed apoptosis, and prevented testicular atrophy in I/R testes. HBO therapy abated oxidative stress in I/R testes, marked by reduced malondialdehyde formation, enhanced activities of superoxide dismutase and heme oxygenase 1 (HO-1), and decreased activities of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase and xanthine oxidase. HBO therapy resulted in a reduction of myeloperoxidase (MPO) activity in I/R testes, a marker of neutrophil recruitment. HBO therapy suppressed inflammation in I/R testes, marked by reduced messenger RNA (mRNA) levels of tumor necrosis factor-α (TNF-α), interleukin-1beta (IL-1β), and CD44. Furthermore, HBO therapy suppressed the activation of nuclear factor kappa B (NFκB), p38, and c-JUN-N-terminal kinase (JNK) signaling pathways in I/R testes. In addition, HBO therapy reduced nitric oxide formation in I/R testes through suppression of inducible nitric oxide synthase and dimethylarginine dimethylaminohydrolase. CONCLUSION HBO therapy in rats attenuated I/R-induced testicular injury, possibly through abating oxidative stress, suppressing inflammation, and reducing nitric oxide formation.
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Affiliation(s)
- Yu Zhang
- Department of Hyperbaric Oxygen, PLA Navy General Hospital, Beijing, People's Republic of China
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348
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Howard MA, Asmis R, Evans KK, Mustoe TA. Oxygen and wound care: a review of current therapeutic modalities and future direction. Wound Repair Regen 2013; 21:503-11. [PMID: 23756299 DOI: 10.1111/wrr.12069] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 03/18/2013] [Indexed: 11/29/2022]
Abstract
While the importance of oxygen to the wound healing process is well accepted, research and technological advances continue in this field and efforts are ongoing to further utilize oxygen as a therapeutic modality. In this paper, the authors briefly review the role of oxygen in wound healing and discuss the distinct mechanism of action as well as the advantages and disadvantages of the three major oxygen-based therapies currently in clinical use (Hyperbaric Oxygen and Topical Oxygen and Continuous Diffusion of Oxygen), as well as review the existing literature regarding these distinct therapeutic modalities.
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Affiliation(s)
- Michael A Howard
- Division of Plastic Surgery, North Shore University HealthSystem, University of Chicago Pritzker School of Medicine, Chicago, IL 60062, USA.
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349
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Use of Hyperbaric Oxygen as Adjunct in Salvage of Near-complete Ear Amputation. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2013; 1. [PMID: 25289195 PMCID: PMC4174167 DOI: 10.1097/gox.0b013e31828c2416] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 02/01/2013] [Indexed: 11/25/2022]
Abstract
Summary: There have been several cases of microvascular repair of traumatically avulsed or amputated ears in the literature. It seems that, if possible at the time of operation, microsurgical techniques yield the best results. However, because of the nature, complexity, and acuity of traumatic injuries, this option is not always feasible. Although the possibility of microsurgical repair exists, the small size of these vessels is often prohibitive, even for a skilled microsurgeon. Here, we present the case of a 4-year-old boy with almost complete amputation of the left ear attached by an inferior narrow skin pedicle after a dog bite. He was treated with primary repair and postoperative hyperbaric oxygen therapy (HBOT) with good results. This case is another example that even a narrow skin pedicle can contain artery and vein that can supply a large segment of the auricle, making primary repair feasible because of the vascular anatomy and communicating helical arcade. Also, this case demonstrates the successful use of HBOT with a pediatric patient as an adjuvant postoperative therapy.
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350
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Ni XX, Ni M, Fan DF, Sun Q, Kang ZM, Cai ZY, Liu Y, Liu K, Li RP, Xu WG. Heat-shock protein 70 is involved in hyperbaric oxygen preconditioning on decompression sickness in rats. Exp Biol Med (Maywood) 2013; 238:12-22. [PMID: 23479759 DOI: 10.1258/ebm.2012.012101] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Decompression sickness (DCS) is a major concern in diving and space walk. Hyperbaric oxygen (HBO) preconditioning has been proved to enhance tolerance to DCS via nitric oxide. Heat-shock protein (HSP) 70 was also found to have protective effects against DCS. We hypothesized that the beneficial effects of HBO preconditioning on DCS was related to levels of elevated HSP70. HSPs (70, 27 and 90) expressed in tissues of spinal cord and lung in rats was detected at different time points following HBO exposure by Western blot. HSP27 and HSP90 showed a slight but not significant increase after HBO. HSP70 increased and reached highest at 18 h following exposure before decreasing. Then rats were exposed to HBO and subjected to simulated air dive and rapid decompression to induce DCS 18 h after HBO. The severity of DCS, along with levels of HSP70 expression, as well as the extent of oxidative and apoptotic parameters in the lung and spinal cord were compared among different groups of rats pretreated with HBO, HBO plus NG-nitro-l-arginine-methyl ester (l-NAME), HBO plus quercetin or normobaric air. HBO preconditioning significantly reduced the morbidity of DCS (from 66.7% to 36.7%), reduced levels of oxidation (malondialdehyde, 8-hydroxyguanine and hydrogen peroxide) and apoptosis (caspase-3 and -9 activities and the number of apoptotic cells). l-NAME or quercetin eliminated most of the beneficial effects of HBO on DCS, and counteracted the stimulation of HSP70 by HBO. Bubbles in pulmonary artery were detected using ultrasound imaging to observe the possible effect of HBO preconditioning on DCS bubble formation. The amounts of bubbles in rats pretreated with HBO or air showed no difference. These results suggest that HSP70 was involved in the beneficial effects of HBO on DCS in rats, suspected be by the antioxidation and antiapoptosis effects.
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Affiliation(s)
- Xiao-Xiao Ni
- Department of Diving Medicine, The Second Military Medical University, 800 Xiangyin Road Shanghai 200433, China
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