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Hou P, Xue H, Chang S, Xie P, Chen Y, Wang Y, Miura D, Fan J, Liang J, Kitayama A, Fang F, Yuan H, Wu X, Zhang X, Wang J, Ding N, Zhang C, Sun X, Takashi E. Thermal preconditioning can reduce the incidence of intraoperatively acquired pressure injuries. J Therm Biol 2023; 115:103617. [PMID: 37352595 DOI: 10.1016/j.jtherbio.2023.103617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 05/17/2023] [Accepted: 06/07/2023] [Indexed: 06/25/2023]
Abstract
Intraoperatively acquired pressure injuries (IAPIs) occur frequently among patients who undergo surgical procedures that last longer than 3 h. Several studies indicated that heat shock proteins (HSPs) play an important role in the protection of stress-induced damages in skin tissues. Hence, the aim of this study was to investigate the potential preventive effect of thermal preconditioning (TPC) on IAPIs in surgical patients and rats and to identify the differentially expressed HSP genes in response to the above treatment. TPC was performed on one group of hairless rats before the model of pressure injuries was established. Subsequently, the size of skin lesions was measured and the expression levels of mRNA and protein of HSPs of the pressured skin were detected by real-time polymerase chain reaction (RT-PCR), western blot, and immunohistochemical staining. For human studies, 118 surgical patients were randomly divided into the TPC group (n = 59) and the control group (n = 59), respectively. The temperature and pressure of sacral skin, as well as the incidence of pressure injury (PI) were detected and compared. In animal studies, TPC significantly reduced both the size and incidence of PI in rats on the second, third and fourth days post treatment. In addition, the expression levels of both mRNA and protein of HSP27 were increased in the TPC group, compared with the control group. Immunohistochemical staining showed that HSP27 was distributed in various types of dermal cells and increased in basal cells. In human studies, a significant reduction (75%) of IAPIs was observed among the patients in the TPC group. TPC can reduce the incidence of PI in rats and humans, and the upregulation of HSP27 may play an important role in this biological progress. Further studies are warranted to explore the molecular mechanism of the preventive effect in PI mediated by HSP27.
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Affiliation(s)
- Ping Hou
- Nagano College of Nursing, 399-4117, Nagano, Japan; School of Nursing and School of Public Health, Yangzhou University, 225000, Yangzhou, China
| | - Huiping Xue
- Nagano College of Nursing, 399-4117, Nagano, Japan; Emergency Intensive Care Unit, Affiliated Hospital of Nantong University, 226000, Nantong, China
| | - Shuwen Chang
- Nagano College of Nursing, 399-4117, Nagano, Japan; Nursing Department, Northern Jiangsu People's Hospital, 225000, Yangzhou, China
| | - Ping Xie
- Nursing Department, Northern Jiangsu People's Hospital, 225000, Yangzhou, China.
| | - Yajie Chen
- Department of Molecular Pathology, Faculty of Medicine, Graduate School of Medical Sciences, University of Yamanashi, 409-3898, Yamanashi, Japan
| | - Yanwei Wang
- Nagano College of Nursing, 399-4117, Nagano, Japan
| | - Daiji Miura
- Nagano College of Nursing, 399-4117, Nagano, Japan
| | - Jianglin Fan
- Department of Molecular Pathology, Faculty of Medicine, Graduate School of Medical Sciences, University of Yamanashi, 409-3898, Yamanashi, Japan
| | - Jingyan Liang
- Health Science Center, Yangzhou University, 225000, Yangzhou, China.
| | | | - Fang Fang
- Nursing Department, Northern Jiangsu People's Hospital, 225000, Yangzhou, China
| | - Haijuan Yuan
- Nursing Department, Northern Jiangsu People's Hospital, 225000, Yangzhou, China
| | - Xiaoling Wu
- Nursing Department, Northern Jiangsu People's Hospital, 225000, Yangzhou, China
| | - Xiaolin Zhang
- Nursing Department, Northern Jiangsu People's Hospital, 225000, Yangzhou, China
| | - Jing Wang
- Nursing Department, Northern Jiangsu People's Hospital, 225000, Yangzhou, China
| | - Ning Ding
- Nursing Department, Northern Jiangsu People's Hospital, 225000, Yangzhou, China
| | - Can Zhang
- Nursing Department, Northern Jiangsu People's Hospital, 225000, Yangzhou, China
| | - Xiuyun Sun
- Nursing Department, Northern Jiangsu People's Hospital, 225000, Yangzhou, China
| | - En Takashi
- Nagano College of Nursing, 399-4117, Nagano, Japan.
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Ilievska G, Dinevska-Kjovkarovska S, Miova B. Effect of single and repeated heat stress on chemical signals of heat shock response cascade in the rat's heart. Cell Stress Chaperones 2018; 23:561-570. [PMID: 29178005 PMCID: PMC6045549 DOI: 10.1007/s12192-017-0863-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 11/02/2017] [Accepted: 11/02/2017] [Indexed: 01/16/2023] Open
Abstract
Exposure to sublethal heat stress activates a complex cascade of signaling events, such as activators (NO), signal molecules (PKCε), and mediators (HSP70 and COX-2), leading to implementation of heat preconditioning, an adaptive mechanism which makes the organism more tolerant to additional stress. We investigated the time frame in which these chemical signals are triggered after heat stress (41 ± 0.5°С/45 min), single or repeated (24 or 72 h after the first one) in heart tissue of male Wistar rats. The animals were allowed to recover 24, 48 or 72 h at room temperature. Single heat stress caused a significant increase of the concentration of HSP70, NO, and PKC level and decrease of COX-2 level 24 h after the heat stress, which in the next course of recovery gradually normalized. The second heat stress, 24 h after the first one, caused a significant reduction of the HSP70 levels, concentration of NO and PKCɛ, and significant increase of COX-2 concentration. The second exposure, 72 h after the first heat stress, caused more expressive changes of HSP70 and NO in the 24 h-recovery groups. The level of PKCɛ was not significantly changed, but there was significantly increased COX-2 concentration during recovery. Serum activity of AST, ALT, and CK was reduced after single exposure and increased after repeated exposure to heat stress, in both time intervals. In conclusion, a longer period of recovery (72 h) between two consecutive sessions of heat stress is necessary to achieve more expressive changes in mediators (HSP70) and triggers (NO) of heat preconditioning.
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Affiliation(s)
- Gordana Ilievska
- Faculty of Veterinary Medicine, University “Ss Cyril and Methodius”, Skopje, Republic of Macedonia
| | - Suzana Dinevska-Kjovkarovska
- Department of Experimental Physiology and Biochemistry, Institute of Biology, Faculty of Natural Sciences and Mathematics, University “Ss Cyril and Methodius”, Arhimedova 3, 1000 Skopje, Republic of Macedonia
| | - Biljana Miova
- Department of Experimental Physiology and Biochemistry, Institute of Biology, Faculty of Natural Sciences and Mathematics, University “Ss Cyril and Methodius”, Arhimedova 3, 1000 Skopje, Republic of Macedonia
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Ramamoorthy P, Thomas S, Ramachandran A, Balasubramanian KA. Mild whole-body heat stress alters retinoid metabolism in the rat small intestine. Dig Dis Sci 2006; 51:466-70. [PMID: 16614953 DOI: 10.1007/s10620-006-3156-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2005] [Accepted: 06/13/2005] [Indexed: 12/09/2022]
Abstract
Mild heat treatment can modulate metabolism and prevent stress-induced alterations in cells and tissues. Retinoids are known to influence cellular metabolism and are essential for growth and differentiation, particularly of epithelial tissue. This study examines the effect of mild heat treatment on retinoid alterations in enterocytes in the rat small intestine. Heat treatment changed the differentiation pattern of enterocytes along the villus-crypt axis, accompanied by increases in retinol, retinaldehyde, and retinoic acid in proliferating crypt cells. Activities of retinoid metabolizing enzymes such as retinaldehyde oxidase and retinaldehyde reductase were also increased. These results suggest that mild heat treatment can alter retinoid metabolism in the small intestine, which might influence epithelial cell proliferation and differentiation.
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Affiliation(s)
- Prabhu Ramamoorthy
- The Wellcome Trust Research Laboratory, Department of Gastrointestinal Sciences, Christian Medical College, Vellore, 632004, India
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Reger PO, Barbe MF, Amin M, Renna BF, Hewston LA, MacDonnell SM, Houser SR, Libonati JR. Myocardial hypoperfusion/reperfusion tolerance with exercise training in hypertension. J Appl Physiol (1985) 2006; 100:541-7. [PMID: 16223983 DOI: 10.1152/japplphysiol.00350.2005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The purpose of this study was to examine whether exercise training, superimposed on compensated-concentric hypertrophy, could increase myocardial hypoperfusion-reperfusion (H/R) tolerance. Female Wistar-Kyoto rats (WKY) and spontaneously hypertensive rats (SHR) (age: 4 mo; N = 40) were placed into a sedentary (SED) or exercise training (TRD) group (treadmill running; 25 m/min, 1 h/day, 5 days/wk for 16 wk). Four groups were studied: WKY-SED ( n = 10), WKY-TRD ( n = 10), SHR-SED ( n = 10), and SHR-TRD ( n = 10). Blood pressure and heart rate were determined, and in vitro isolated heart performance was measured with a retrogradely perfused, Langendorff isovolumic preparation. The H/R protocol consisted of a 75% reduction in coronary flow for 17 min followed by 30 min of reperfusion. Although the rate-pressure product was significantly elevated in SHR relative to WKY, training-induced bradycardia reduced the rate-pressure product in SHR-TRD ( P < 0.05) without an attenuation in systolic blood pressure. Heart-to-body weight ratio was greater in both groups of SHR vs. WKY-SED ( P < 0.001). Absolute and relative myocardial tolerance to H/R was greater in WKY-TRD and both groups of SHR relative to WKY-SED ( P < 0.05). Endurance training superimposed on hypertension-induced compensated hypertrophy conferred no further cardioprotection to H/R. Postreperfusion 72-kDa heat shock protein abundance was enhanced in WKY-TRD and both groups of SHR relative to WKY-SED ( P < 0.05) and was highly correlated with absolute left ventricular functional recovery during reperfusion ( R2= 0.86, P < 0.0001). These data suggest that both compensated hypertrophy associated with short-term hypertension and endurance training individually improved H/R and that increased postreperfusion 72-kDa heat shock protein abundance was, in part, associated with the cardioprotective phenotype observed in this study.
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Affiliation(s)
- Patricia O Reger
- Department of Kinesiology, Temple Univ., 122 Pearson Hall, 1800 North Broad St., Philadelphia, PA 19122, USA
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Griffin TM, Valdez TV, Mestril R. Radicicol activates heat shock protein expression and cardioprotection in neonatal rat cardiomyocytes. Am J Physiol Heart Circ Physiol 2004; 287:H1081-8. [PMID: 15117720 DOI: 10.1152/ajpheart.00921.2003] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Heat shock proteins (HSPs) constitute an endogenous cellular defense mechanism against environmental stresses. In the past few years, studies have shown that overexpression of HSPs can protect cardiac myocytes against ischemia-reperfusion injury. In an attempt to increase the HSPs in cardiac tissue, we used the compound radicicol that activates HSP expression by binding to the HSP 90 kDa (HSP90). HSP90 is the main component of the cytosolic molecular chaperone complex, which has been implicated in the regulation of the heat shock factor 1 (HSF1). HSF1 is responsible for the transcriptional activation of the heat shock genes. In the present study, we show that radicicol induces HSP expression in neonatal rat cardiomyocytes, and this increase in HSPs confers cardioprotection to these cardiomyocytes. We also show that radicicol induction of the HSP and cardioprotection is dependent on the inhibition of HSP90 in cardiomyocytes. These results indicate that modulation of the active HSP90 protein level plays an important role in cardioprotection. Therefore, compounds, such as radicicol and its possible derivatives that inhibit the function of HSP90 in the cell may represent potentially useful cardioprotective agents.
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Affiliation(s)
- Tina M Griffin
- Department of Physiology and the Cardiovascular Institute, Loyola University Medical Center, Maywood, Illinios 60153, USA
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Patel HH, Hsu A, Gross GJ. Attenuation of heat shock-induced cardioprotection by treatment with the opiate receptor antagonist naloxone. Am J Physiol Heart Circ Physiol 2002; 282:H2011-7. [PMID: 12003805 DOI: 10.1152/ajpheart.00828.2001] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Whole body hyperthermia induces heat shock proteins (HSPs), which confer cardioprotection. Several opioid receptor subtypes are expressed in the heart and are linked to cardioprotection; however, no one has attempted to link the protection elicited by heat stress (HS) to opioids. Therefore, we investigated the effect of an opiate receptor antagonist, naloxone, on HS-induced cardioprotection. Anesthetized Sprague-Dawley rats were subjected to HS (42 degrees C for 20 min) with and without naloxone pretreatment and were allowed to recover for 48 h. They then underwent 30 min of ischemia followed by 2 h of reperfusion. An acute HS group was given an intravenous bolus of naloxone (3 mg/kg) 10 min before index ischemia. Infarct size (IS), expressed as a percentage of the area at risk (IS/AAR), was determined. The right heart was excised for analysis of HSP content by Western blot. Heat-shocked rats showed significant reductions in IS/AAR versus control (16 +/- 3 vs. 58 +/- 4%, P < 0.001). Pretreatment with naloxone before HS attenuated the protective effects in a dose-dependent fashion, with significant attenuation of protection occurring at 15 mg/kg naloxone versus heat shock (42 +/- 6 vs. 16 +/- 3%, P < 0.001). Acute treatment with naloxone (3 mg/kg) 48 h after recovery from HS also significantly attenuated the delayed protective effect (47 +/- 4 vs. 16 +/- 3%, P < 0.001). No difference was seen in the level of HSP70 induced in the different groups. We conclude that heat shock-induced cardioprotection can be attenuated by naloxone, an opiate receptor antagonist, without reducing the levels of certain HSPs. These results suggest there may be a link between the endogenous release of opioids and HS that mediates cardioprotection.
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Affiliation(s)
- Hemal H Patel
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA
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