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Mac Giollabhui N, Lowry CA, Nyer M, Foster SL, Liu RT, Smith DG, Cole SP, Mason AE, Mischoulon D, Raison CL. The antidepressant effect of whole-body hyperthermia is associated with the classical interleukin-6 signaling pathway. Brain Behav Immun 2024; 119:801-806. [PMID: 38677624 DOI: 10.1016/j.bbi.2024.04.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/15/2024] [Accepted: 04/24/2024] [Indexed: 04/29/2024] Open
Abstract
There is urgent need for novel antidepressant treatments that confer therapeutic benefits via engagement with identified mechanistic targets. The objective of the study was to determine whether activation of the classical anti-inflammatory interleukin-6 signaling pathways is associated with the antidepressant effects of whole-body hyperthermia. A 6-week, randomized, double-blind study compared whole-body hyperthermia with a sham condition in a university-based medical center. Medically healthy participants aged 18-65 years who met criteria for major depressive disorder, were free of psychotropic medication use, and had a baseline 17-item Hamilton Depression Rating Scale score ≥ 16 were randomized with 1-to-1 allocation in blocks of 6 to receive whole-body hyperthermia or sham. Of 338 individuals screened, 34 were randomized, 30 received interventions and 26 had ≥ 2 blood draws and depressive symptom assessments. Secondary data analysis examined change in the ratio of IL-6:soluble IL-6 receptor pre-intervention, post-intervention, and at weeks 1 and 4. Hierarchical linear modeling tested whether increased IL-6:soluble IL-6 receptor ratio post-intervention was associated with decreased depressive symptom at weeks 1, 2, 4 and 6 for those randomized to whole-body hyperthermia. Twenty-six individuals were randomized to whole-body hyperthermia [n = 12; 75 % female; age = 37.9 years (SD = 15.3) or sham [n = 14; 57.1 % female; age = 41.1 years (SD = 12.5). When compared to the sham condition, active whole-body hyperthermia only increased the IL-6:soluble IL-6 receptor ratio post-treatment [F(3,72) = 11.73,p < .001], but not pre-intervention or at weeks 1 and 4. Using hierarchical linear modeling, increased IL-6:sIL-6R ratio following whole-body hyperthermia moderated depressive symptoms at weeks 1, 2, 4 and 6, such that increases in the IL-6:soluble IL-6 receptor ratio were associated with decreased depressive symptoms at weeks 1, 2, 4 and 6 for those receiving the active whole-body hyperthermia compared to sham treatment (B = -229.44, t = -3.82,p < .001). Acute activation of classical intereukin-6 signaling might emerge as a heretofore unrecognized novel mechanism that could be harnessed to expand the antidepressant armamentarium.
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Affiliation(s)
| | - Christopher A Lowry
- Department of Integrative Physiology, University of Colorado, Boulder, CO, USA
| | - Maren Nyer
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA
| | - Simmie L Foster
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA
| | - Richard T Liu
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA
| | - David G Smith
- Center for Single Cell Biology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Steven P Cole
- Research Design Associates, Yorktown Heights, NY, USA
| | - Ashley E Mason
- Department of Psychiatry, University of California, San Francisco, CA, USA
| | - David Mischoulon
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA
| | - Charles L Raison
- Department of Psychiatry, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA; Vail Health Behavioral Health, Edwards, CO, USA; Department of Spiritual Health, Woodruff Health Sciences Center, Emory University, Atlanta, GA, USA
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Laukkanen JA, Kunutsor SK. The multifaceted benefits of passive heat therapies for extending the healthspan: A comprehensive review with a focus on Finnish sauna. Temperature (Austin) 2024; 11:27-51. [PMID: 38577299 PMCID: PMC10989710 DOI: 10.1080/23328940.2023.2300623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/22/2023] [Indexed: 04/06/2024] Open
Abstract
Passive heat therapy is characterized by exposure to a high environmental temperature for a brief period. There are several types of passive heat therapy which include hot tubs, Waon therapy, hydrotherapy, sanarium, steam baths, infrared saunas and Finnish saunas. The most commonly used and widely studied till date are the Finnish saunas, which are characterized by high temperatures (ranging from 80-100°C) and dry air with relative humidity varying from 10-20%. The goal of this review is to provide a summary of the current evidence on the impact of passive heat therapies particularly Finnish saunas on various health outcomes, while acknowledging the potential of these therapies to contribute to the extension of healthspan, based on their demonstrated health benefits and disease prevention capabilities. The Finnish saunas have the most consistent and robust evidence regarding health benefits and they have been shown to decrease the risk of health outcomes such as hypertension, cardiovascular disease, thromboembolism, dementia, and respiratory conditions; may improve the severity of musculoskeletal disorders, COVID-19, headache and flu, while also improving mental well-being, sleep, and longevity. Finnish saunas may also augment the beneficial effects of other protective lifestyle factors such as physical activity. The beneficial effects of passive heat therapies may be linked to their anti-inflammatory, cytoprotective and anti-oxidant properties and synergistic effects on neuroendocrine, circulatory, cardiovascular and immune function. Passive heat therapies, notably Finnish saunas, are emerging as potentially powerful and holistic strategies to promoting health and extending the healthspan in all populations.
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Affiliation(s)
- Jari A. Laukkanen
- Institute of Clinical Medicine, Department of Medicine, University of Eastern Finland, Kuopio, Finland
- Department of Medicine, Wellbeing Services County of Central Finland, Jyväskylä, Finland
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Podstawski R, Borysławski K, Pomianowski A, Soós I, Boraczyński M, Gronek P. Physiological Response to Thermal Stress in Obese vs. Non-Obese Physically Inactive Men. BIOLOGY 2022; 11:biology11030471. [PMID: 35336845 PMCID: PMC8945003 DOI: 10.3390/biology11030471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/12/2022] [Accepted: 03/13/2022] [Indexed: 11/16/2022]
Abstract
The effects of thermal stress on the physiological parameters of obese subjects remain insufficiently researched. The objective of this study was to determine the influence of sauna bathing on the physiological parameters of obese and non-obese physically inactive men. Sixty volunteers aged 18−24 years (20.85 ± 1.46) were divided into two groups (group I—normal body mass, group II—class 1 obesity) for a comparative analysis. Somatic features and body composition were determined before sauna, and blood pressure was measured before and after sauna. Physiological parameters were monitored before and during the sauna session. The average values of body mass, body mass index, body surface area, and weight-to-height ratio were significantly higher (p < 0.001) in obese men (by 28.39 kg, 8.7 kg/m2, 0.34 m2, and 0.13, respectively) than in the normal weight group. Similar observations were made in an analysis of the remaining body composition parameters. The values of physiological parameters (heart rate, systolic and diastolic blood pressure, energy expenditure, oxygen uptake, excess post-exercise oxygen consumption, respiratory rate) were significantly (p < 0.001) higher in obese subjects. However, the observed physiological changes were within the expected norm; therefore, a 10 min sauna session is safe for young men regardless of their body fat levels.
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Affiliation(s)
- Robert Podstawski
- Department of Tourism Recreation and Ecology, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
- Correspondence:
| | | | - Andrzej Pomianowski
- Department of Internal Diseases with Clinic, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland;
| | - Imre Soós
- Faculty of Health Sciences, Doctoral School of Health Sciences, University of Pécs, H-7622 Pécs, Hungary;
| | - Michał Boraczyński
- Department of Health Sciences, Collegium Medicum, University of Warmia and Mazury, 10-561 Olsztyn, Poland;
| | - Piotr Gronek
- Laboratory of Healthy Aging, Department of Dance, Poznań University of Physical Education, 61-555 Poznań, Poland;
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The acute effects of passive heating on endothelial function, muscle microvascular oxygen delivery, and expression of serum HSP90α. Microvasc Res 2022; 142:104356. [PMID: 35276210 DOI: 10.1016/j.mvr.2022.104356] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 03/01/2022] [Accepted: 03/04/2022] [Indexed: 11/22/2022]
Abstract
Passive heating has been a therapeutic tool used to elevate core temperature and induce increases in cardiac output, blood flow, and shear stress. We aimed to determine the effects of a single bout of passive heating on endothelial function and serum heat shock protein 90α (HSP90α) levels in young, healthy subjects. 8 healthy subjects were recruited to participate in one bout of whole-body passive heating via immersion in a 40 °C hot tub to maintain a 1 °C increase in rectal temperature for 60 min. Twenty-four hours after heating, shear-rate corrected endothelium-dependent dilation increased (pre: 0.004 ± 0.002%SRAUC; post: 0.006 ± 0.003%SRAUC; p = 0.034) but serum [HSP90α] was not changed (pre: 36.7 ± 10.3 ng/mL; post: 40.6 ± 15.9 ng/mL; p = 0.39). Neither resting muscle O2 utilization (pre: 0.17 ± 0.11 ml O2 min-1 (100 g)-1; post: 0.14 ± 0.09 ml O2 min-1 (100 g)-1); p = 0.28) nor mean arterial pressure (pre: 74 ± 11 mmHg; post: 73 ± 11 mmHg; p = 0.79) were influenced by the heating intervention. Finally, time to peak after cuff release was significantly delayed for % O2 sat (TTPpre = 39 ± 8.9 s and TTPpost = 43.5 ± 8.2 s; p = 0.007) and deoxy-[heme] (TTPpre = 41.3 ± 18.1 s and TTPpost = 51.4 ± 16.3 s; p = 0.018), with no effect on oxy-[heme] (p = 0.19) and total-[heme] (p = 0.41). One bout of passive heating improved endothelium-dependent dilation 24 h later in young, healthy subjects. This data suggests that passive heat treatments may provide a simple intervention for improving vascular health.
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Mahlouji M, Alizadeh Vaghasloo M, Dadmehr M, Rezaeizadeh H, Nazem E, Tajadini H. Sweating as a Preventive Care and Treatment Strategy in Traditional Persian Medicine. Galen Med J 2021; 9:e2003. [PMID: 34466623 PMCID: PMC8343902 DOI: 10.31661/gmj.v9i0.2003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/12/2020] [Accepted: 10/01/2020] [Indexed: 11/16/2022] Open
Abstract
Proper and regular sweating plays a significant thermoregulatory role. It is a common perception that, sweating has other important homeostatic functions such as clearance of excessive micronutrients, waste products of metabolic processes, and toxins from the body, which helps to maintain human good health. In addition, sweating, thermotherapy, and sauna are commonly used to treat various diseases such as cardiovascular, respiratory and joint diseases. In traditional Persian medicine (PM) textbooks, sweating is considered a preventive care and treatment strategy as well. In this study, we aim to explain the beneficial effects of sweating in human health and its role in the management of various diseases, as well as introducing the therapeutic applications of some diaphoretic plants from the viewpoint of PM. We reviewed the most famous PM textbooks such as Kamil al-Sinaa al-Tibbiya, Al-Qānūn fī al-Tibb, Zakhireye Kharazmshahi, Kholasat al-Hikmat, Exir-e-Azam, and Hifzos-sihhat-e Naseri. Also, current evidence was searched in PubMed, Web of Science, Scopus, and other relevant databases related to the topic. The results of this study revealed that PM scientists believed proper sweating removes waste products and maintains the body’s health, thus, any disturbances in the excretion of these waste products can cause diseases. They recommended the induction of sweating through hot and dry baths, sun bath, sand bath and also the use of diaphoretic herbs for the management of various diseases. Therefore, further researches are recommended to evaluate the effectiveness of these diaphoretic plants.
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Affiliation(s)
- Mahboubeh Mahlouji
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
- Department of Traditional Medicine, School of Persian Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Majid Dadmehr
- School of Persian Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hossein Rezaeizadeh
- School of Persian Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Esmaeil Nazem
- School of Persian Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Haleh Tajadini
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
- Department of Traditional Medicine, School of Persian Medicine, Kerman University of Medical Sciences, Kerman, Iran
- Correspondence to: Haleh Tajadini, MD-PhD, Assistant Professor of Persian Medicine, Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran Telephone Number: +989131972312 Email Address:
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Brunt VE, Minson CT. Heat therapy: mechanistic underpinnings and applications to cardiovascular health. J Appl Physiol (1985) 2021; 130:1684-1704. [PMID: 33792402 DOI: 10.1152/japplphysiol.00141.2020] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Cardiovascular diseases (CVD) are the leading cause of death worldwide, and novel therapies are drastically needed to prevent or delay the onset of CVD to reduce the societal and healthcare burdens associated with these chronic diseases. One such therapy is "heat therapy," or chronic, repeated use of hot baths or saunas. Although using heat exposure to improve health is not a new concept, it has received renewed attention in recent years as a growing number of studies have demonstrated robust and widespread beneficial effects of heat therapy on cardiovascular health. Here, we review the existing literature, with particular focus on the molecular mechanisms that underscore the cardiovascular benefits of this practice.
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Affiliation(s)
- Vienna E Brunt
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, Colorado.,Department of Human Physiology, University of Oregon, Eugene, Oregon
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McCormick JJ, Dokladny K, Moseley PL, Kenny GP. Autophagy and heat: a potential role for heat therapy to improve autophagic function in health and disease. J Appl Physiol (1985) 2021; 130:1-9. [DOI: 10.1152/japplphysiol.00542.2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Autophagy is a crucial cell survival mechanism that involves the degradation and recycling of old or damaged organelles and proteins to maintain cellular homeostasis. Impairments in autophagy are central to the pathogenesis of many conditions including metabolic and neurodegenerative disorders, cardiovascular and pulmonary diseases, diabetes, and aging. Although various pharmacological agents may be able to stimulate autophagic function, to our knowledge, few interventions exist that have been deemed safe and effective in humans. An emerging body of evidence suggests that targeting the autophagic pathway via passive heating (heat therapy) may stimulate autophagic function. Therefore, the primary focus of the present review is to analyze the mechanisms in which passive heating induces autophagy as defined by in vitro and in vivo (animal and human) models. Our secondary focus is to examine the implications of utilizing passive heating to restore dysfunctional autophagy in chronic disease and aging. Finally, we discuss potential therapeutic strategies to implement passive heating to stimulate autophagic function in humans.
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Affiliation(s)
- James J. McCormick
- Human and Environmental Physiology Research Unit, University of Ottawa, Ottawa, Ontario, Canada
| | - Karol Dokladny
- Department of Internal Medicine, The University of New Mexico, Albuquerque, New Mexico
| | - Pope L. Moseley
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Glen P. Kenny
- Human and Environmental Physiology Research Unit, University of Ottawa, Ottawa, Ontario, Canada
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Labidi M, Ihsan M, Behan FP, Alhammoud M, Smith T, Mohamed M, Tourny C, Racinais S. Six weeks of localized heat therapy does not affect muscle mass, strength and contractile properties in healthy active humans. Eur J Appl Physiol 2020; 121:573-582. [PMID: 33159573 DOI: 10.1007/s00421-020-04545-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 10/27/2020] [Indexed: 11/25/2022]
Abstract
PURPOSE Animal and human studies have shown that repeated heating may induce skeletal muscle adaptations, increasing muscle strength. The aim of this study is to investigate the effect of 6 weeks of localized heating on skeletal muscle strength, volume and contractile properties in healthy humans. METHODS Fifteen active participants (8 males/7 females, 35 ± 6 years, 70 ± 14 kg, 173 ± 7 cm, average training of 87 min per week) were subjected to 6 weeks of single-leg heat therapy. Heat pads were applied for 8 h/day, 5 days/week, on one randomly selected calf of each participant, while the contralateral leg acted as control. The heat pads increased muscle temperature by 4.6 ± 1.2 °C (p < 0.001). Every 2 weeks, participants were tested for morphological (MRI), architectural (ultrasound), contractile (electrically evoked twitch), and force (isometric and isokinetic) adaptations. RESULTS Repeated localized heating did not affect the cross-sectional area (p = 0.873) or pennation angle (p = 0.345) of the gastrocnemius muscles; did not change the evoked peak twitch amplitude (p = 0.574) or rate of torque development (p = 0.770) of the plantar flexors; and did not change maximal voluntary isometric (p = 0.214) or isokinetic (p = 0.973) plantar flexor torque. CONCLUSION Whereas previous studies have observed improved skeletal muscle function following whole-body and localized heating in active and immobilized humans, respectively, the current data suggested that localized heating may not be a potent stimulus for muscle adaptations in active humans.
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Affiliation(s)
- Mariem Labidi
- Research and Scientific Support Department, Aspetar Orthopaedic and Sports Medicine Hospital, PO Box 29222, Doha, Qatar
- Faculty of Sport Sciences and Physical Education, CETAPS, University of Rouen, Mont-Saint-Aignan, France
| | - Mohammed Ihsan
- Research and Scientific Support Department, Aspetar Orthopaedic and Sports Medicine Hospital, PO Box 29222, Doha, Qatar
- Human Potential and Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
| | - Fearghal P Behan
- Research and Scientific Support Department, Aspetar Orthopaedic and Sports Medicine Hospital, PO Box 29222, Doha, Qatar
- School of Health and Human Performance, Dublin City University, Dublin, Ireland
| | - Marine Alhammoud
- Surgery Department, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - Tessa Smith
- Radiology Department, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - Mohamed Mohamed
- Radiology Department, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - Claire Tourny
- Faculty of Sport Sciences and Physical Education, CETAPS, University of Rouen, Mont-Saint-Aignan, France
| | - Sébastien Racinais
- Research and Scientific Support Department, Aspetar Orthopaedic and Sports Medicine Hospital, PO Box 29222, Doha, Qatar.
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Sugawara J, Tomoto T. Effects of short-term warm water immersion on cardiac baroreflex sensitivity in healthy men. J Physiol Sci 2020; 70:34. [PMID: 32646375 PMCID: PMC10717741 DOI: 10.1186/s12576-020-00762-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 07/03/2020] [Indexed: 11/10/2022]
Abstract
Warm water immersion (WWI) causes dizziness presumably due to a substantial drop of blood pressure. The aim of this study was to elucidate the effects of short-term WWI on cardiac baroreflex sensitivity (BRS) and the contribution of arterial stiffness to the cardiac BRS. Twelve apparent healthy men (44 ± 12 years) performed the single stand-up test after 5-min sitting in the bathtub without (Control) and with 41 °C warm water at the heart level (WWI). Cardiac BRS gain was evaluated by R-R interval response to the standing-induced drop of systolic blood pressure. In addition, before and 10 min after the single stand-up test, carotid arterial β-stiffness index was evaluated in the supine rest. BRS gain was blunted (2.9 ± 1.6 vs. 1.8 ± 1.1 ms/mmHg, P = 0.005), whereas β-stiffness index was not changed significantly after WWI. BRS gain correlated with β-stiffness index before (r = - 0.626, P = 0.028) and after WWI (r = - 0.672, P = 0.015). ANCOVA revealed that these slopes of linear regression lines remained unchanged after WWI (P = 0.350). These results indicate that a short-term WWI acutely deteriorates cardiac BRS. Individuals with stiffer arteries are relatively more susceptible to WWI because of their poor baseline BRS, which might be one of the causes of bathing-related falling in elderly persons as well as frailty.
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Affiliation(s)
- Jun Sugawara
- Human Informatics and Interaction Research Institute, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8566, Japan.
| | - Tsubasa Tomoto
- Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, TX, USA
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX, USA
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Choi HS, Kwon H, Cho KH, Thuc LC, Park SY, Kim NH, Kim WJ, Kim YK, Jeon WS, Lee JA, Kim HC, Cho EH. Repeated Dry Sauna Therapy Improves Quality of Life in Obese Korean People. Korean J Fam Med 2020; 41:312-317. [PMID: 32434303 PMCID: PMC7509121 DOI: 10.4082/kjfm.18.0160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/22/2018] [Indexed: 12/31/2022] Open
Abstract
Background Dry sauna treatments improve the quality of life for chronic pain, congestive heart failure, and type 2 diabetes patients. This study aimed to determine whether dry sauna therapy improved the quality of life of obese people. Methods A total of 38 consecutive participants aged over 20 years with a body mass index of ≥25 kg/m2 were recruited for the study. The participants were treated with a 90°C dry sauna for 15 minutes, twice daily for 4 consecutive days. To assess the quality of life, all participants completed the 5 level EQ-5D questionnaires and the EQ-Visual Analog Scale. Study parameters were measured on the same day prior to commencing the sauna sessions in a fasted state and 2 days after the last sauna session. Results The average age was 62.3±9.5 years; 84.2% of the participants were female. The mean body mass index was 28.5±2.4 kg/m2. Dry sauna significantly improved the mean 5 level EQ-5D index scores from 0.83±0.12 to 0.89±0.11 and increased the mean EQ-Visual Analog Scale from 79.0±15.2 to 91.1±9.7. However, there were no significant changes in body mass index, blood pressure, heart rate, or body composition before and after the 8-session sauna therapy. Conclusion Dry sauna improved the health-related quality of life of obese patients without adverse events. Further clinical studies in larger study populations are needed to verify these findings and provide concrete evidence for obesity treatment.
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Affiliation(s)
- Hoon Sung Choi
- Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Hyuki Kwon
- Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Keun-Hyok Cho
- Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Le Cong Thuc
- Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Korea
| | - So Young Park
- Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Nam-Hun Kim
- College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, Korea
| | - Wae-Jung Kim
- College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, Korea
| | - Yun-Ki Kim
- College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, Korea
| | - Woo-Seok Jeon
- College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, Korea
| | - Ju-Ah Lee
- College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, Korea
| | - Hyoung-Chun Kim
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - Eun-Hee Cho
- Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Korea
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Sharma N, Shin EJ, Kim NH, Cho EH, Nguyen BT, Jeong JH, Jang CG, Nah SY, Kim HC. Far-infrared Ray-mediated Antioxidant Potentials are Important for Attenuating Psychotoxic Disorders. Curr Neuropharmacol 2020; 17:990-1002. [PMID: 30819085 PMCID: PMC7052827 DOI: 10.2174/1570159x17666190228114318] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 02/02/2019] [Accepted: 02/14/2019] [Indexed: 12/14/2022] Open
Abstract
Far-infrared ray (FIR) is an electromagnetic wave that produces various health benefits against pathophysiological conditions, such as diabetes mellitus, renocardiovascular disorders, stress, and depression etc. However, the therapeutic ap-plication on the FIR-mediated protective potentials remains to be further extended. To achieve better understanding on FIR-mediated therapeutic potentials, we summarized additional findings in the present study that exposure to FIR ameliorates stressful condition, memory impairments, drug dependence, and mitochondrial dysfunction in the central nervous system. In this review, we underlined that FIR requires modulations of janus kinase 2 / signal transducer and activator of transcription 3 (JAK2/STAT3), nuclear factor E2-related factor 2 (Nrf-2), muscarinic M1 acetylcholine receptor (M1 mAChR), dopamine D1 receptor, protein kinase C δ gene, and glutathione peroxidase-1 gene for exerting the protective potentials in response to neuropsychotoxic conditions
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Affiliation(s)
- Naveen Sharma
- Neuropsychopharmacology and Toxicology Program, BK21 PLUS Project, College of Pharmacy, Kangwon National University, Chunchon 24341, Korea
| | - Eun-Joo Shin
- Neuropsychopharmacology and Toxicology Program, BK21 PLUS Project, College of Pharmacy, Kangwon National University, Chunchon 24341, Korea
| | - Nam Hun Kim
- College of Forest and Environmental Sciences, Kangwon National University, Chunchon 24341, Korea
| | - Eun-Hee Cho
- Department of Internal Medicine, Medical School, Kangwon National University, Chunchon 24341, Korea
| | - Bao Trong Nguyen
- Neuropsychopharmacology and Toxicology Program, BK21 PLUS Project, College of Pharmacy, Kangwon National University, Chunchon 24341, Korea
| | - Ji Hoon Jeong
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Choon Gon Jang
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University Suwon 16419, Korea
| | - Seung-Yeol Nah
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine and Bio/Molecular Informatics Center, Konkuk University, Seoul, Korea
| | - Hyoung-Chun Kim
- Neuropsychopharmacology and Toxicology Program, BK21 PLUS Project, College of Pharmacy, Kangwon National University, Chunchon 24341, Korea
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Li EJ, Lu J, Dong SM, Zhang MZ, Cen S, Li LJ, Huang WH. Instability of Nucleic Acids in Airborne Microorganisms under Far Infrared Radiation. Health (London) 2020. [DOI: 10.4236/health.2020.128074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Maley MJ, Hunt AP, Stewart IB, Faulkner SH, Minett GM. Passive heating and glycaemic control in non-diabetic and diabetic individuals: A systematic review and meta-analysis. PLoS One 2019; 14:e0214223. [PMID: 30901372 PMCID: PMC6430508 DOI: 10.1371/journal.pone.0214223] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 03/08/2019] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVE Passive heating (PH) has begun to gain research attention as an alternative therapy for cardio-metabolic diseases. Whether PH improves glycaemic control in diabetic and non-diabetic individuals is unknown. This study aims to review and conduct a meta-analysis of published literature relating to PH and glycaemic control. METHODS Electronic data sources, PubMed, Embase and Web of Science from inception to July 2018 were searched for randomised controlled trials (RCT) studying the effect of PH on glycaemic control in diabetic or non-diabetic individuals. To measure the treatment effect, standardised mean differences (SMD) with 95% confidence intervals (CI) were calculated. RESULTS Fourteen articles were included in the meta-analysis. Following a glucose load, glucose concentration was greater during PH in non-diabetic (SMD 0.75, 95% CI 1.02 to 0.48, P < 0.001) and diabetic individuals (SMD 0.27, 95% CI 0.52 to 0.02, P = 0.030). In non-diabetic individuals, glycaemic control did not differ between PH and control only (SMD 0.11, 95% CI 0.44 to -0.22, P > 0.050) and a glucose challenge given within 24 hours post-heating (SMD 0.30, 95% CI 0.62 to -0.02, P > 0.050). CONCLUSION PH preceded by a glucose load results in acute glucose intolerance in non-diabetic and diabetic individuals. However, heating a non-diabetic individual without a glucose load appears not to affect glycaemic control. Likewise, a glucose challenge given within 24 hours of a single-bout of heating does not affect glucose tolerance in non-diabetic individuals. Despite the promise PH may hold, no short-term benefit to glucose tolerance is observed in non-diabetic individuals. More research is needed to elucidate whether this alternative therapy benefits diabetic individuals.
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Affiliation(s)
- Matthew J. Maley
- Institute of Health and Biomedical Innovation, School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia
- Department of Sport and Exercise Science, University of Portsmouth, Portsmouth, United Kingdom
| | - Andrew P. Hunt
- Institute of Health and Biomedical Innovation, School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia
| | - Ian B. Stewart
- Institute of Health and Biomedical Innovation, School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia
| | - Steve H. Faulkner
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom
| | - Geoffrey M. Minett
- Institute of Health and Biomedical Innovation, School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia
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Anti-Inflammatory Effects of Cold Thermal Therapy on Allergic Skin Inflammation Induced by Trimellitic Anhydride in BALB/c Mice. Mediators Inflamm 2019; 2019:1936769. [PMID: 30833826 PMCID: PMC6369506 DOI: 10.1155/2019/1936769] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/14/2018] [Accepted: 12/06/2018] [Indexed: 02/04/2023] Open
Abstract
Cold and hot thermal therapies are widely used as a traditional therapy in many cultures and are often prescribed in the treatment of various musculoskeletal and neurological conditions which present themselves to primary care physicians. However, there are no reports that investigated either the effects of cold and hot thermal therapies on the skin inflammation of trimellitic anhydride- (TMA-) induced dermatitis-like contact hypersensitivity (CHS) mouse model, or the mechanism of thermal therapy on allergic skin inflammation. Therefore, in this study, to reveal the anti-inflammatory effect of thermal therapy and its mechanism on TMA-induced CHS, we analyzed ear-swelling response (ear edema), vascular permeability, serum IgE levels, histological examination, and histamine and Th2 cytokine levels. Cold thermal therapy reduced the ear-swelling response, the vascular permeability, the serum IgE levels, and the infiltration of eosinophils and mast cells as well as the mast cell degranulation. To determine the mechanism by which cold thermal therapy inhibits allergic skin inflammation, detailed studies were carried out revealing that cold thermal therapy suppressed IL-4 and IL-5 secretion and mast cell activation. These results indicated that cold thermal therapy cures skin inflammation of TMA-induced CHS by decreasing Th2 cytokine release, especially IL-4 and IL-5, and mast cell activation. These data suggest that new insight into the mechanism of robust therapeutic effects of cold thermal therapy against allergic dermatitis, and cold thermal therapy may prove to be a useful therapeutic modality on allergic inflammatory diseases as traditional use as well as Th2- or mast cell-mediated allergic responses.
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Correlations between Repeated Use of Dry Sauna for 4 x 10 Minutes, Physiological Parameters, Anthropometric Features, and Body Composition in Young Sedentary and Overweight Men: Health Implications. BIOMED RESEARCH INTERNATIONAL 2019; 2019:7535140. [PMID: 30800676 PMCID: PMC6360547 DOI: 10.1155/2019/7535140] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 12/25/2018] [Indexed: 02/03/2023]
Abstract
Background The effect of thermal stress on the physiological parameters of young overweight and sedentary men who sporadically use the sauna remains insufficiently investigated. Aim The aim of the study was to determine the effect of sauna bathing on the physiological parameters of young overweight, physically inactive men and to test the correlations between physiological parameters versus anthropometric features and body composition parameters. Materials and Methods Forty-five overweight and sedentary men aged 20.76±2.4 y were exposed to four sauna sessions of 10 minutes each (temperature: 90-91°C; relative humidity: 14-16 %) with four 5-minute cool-down breaks. Body composition was determined before sauna, and body mass and blood pressure were measured before and after sauna. Physiological parameters were monitored during four 10-minute sauna sessions. Results A significant (p<0.0001) increase in all analyzed physiological parameters was observed during four successive 10-minute sauna sessions. Heart rate, energy expenditure, blood pressure, and body mass loss were most strongly correlated with anthropometric parameters (body mass, body mass index, and body surface area) and body composition parameters (percent body fat, body fat mass, and visceral fat level). The 60-minute treatment resulted in a significant reduction in body mass (0.65 kg). Conclusions Repeated use of Finnish sauna induces significant changes in the physiological parameters of young sedentary overweight men, and these changes are intensified during successive treatments. Deleterious cardiovascular adaptations were most prevalent in men characterized by the highest degree of obesity and the largest body size.
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Lowry C, Flux M, Raison C. Whole-Body Heating: An Emerging Therapeutic Approach to Treatment of Major Depressive Disorder. FOCUS: JOURNAL OF LIFE LONG LEARNING IN PSYCHIATRY 2018; 16:259-265. [PMID: 31975920 DOI: 10.1176/appi.focus.20180009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Major depressive disorder is the leading cause of disability worldwide. Currently available pharmacological approaches to the treatment of depression (which are the mainstay of treatment in the United States) suffer from important shortcomings, including limited efficacy, delayed onset of action, increased relapse risk upon withdrawal, and significant side effects that impair quality of life and promote treatment nonadherence and/or discontinuation. There is an emerging interest in the potential use of evolutionarily conserved interoceptive pathways (i.e., pathways that relay sensory information, related to the internal, physiologic state of the body, from the periphery to the central nervous system) as "gateways" to neural systems controlling affective and cognitive function relevant to the pathophysiology of depression. In support of the potential utility of this approach, we have shown in open and randomized, double-blind, sham-controlled trials that infrared whole-body heating has significant and long-lasting antidepressant effects relative to a sham condition. In this review, we explore the potential role of thermosensory pathways in the etiology, pathophysiology, and symptomatology of major depressive disorder, as well as its potential as a novel therapeutic approach to the treatment of major depressive disorder.
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Affiliation(s)
- Christopher Lowry
- Dr. Lowry is with the Department of Integrative Physiology and Center for Neuroscience, University of Colorado, Boulder. Mr. Flux is with the Department of Psychology and Neuroscience, University of Colorado, Boulder. Dr. Raison is with the School of Human Ecology and the School of Medicine and Public Health, University of Wisconsin-Madison
| | - Michael Flux
- Dr. Lowry is with the Department of Integrative Physiology and Center for Neuroscience, University of Colorado, Boulder. Mr. Flux is with the Department of Psychology and Neuroscience, University of Colorado, Boulder. Dr. Raison is with the School of Human Ecology and the School of Medicine and Public Health, University of Wisconsin-Madison
| | - Charles Raison
- Dr. Lowry is with the Department of Integrative Physiology and Center for Neuroscience, University of Colorado, Boulder. Mr. Flux is with the Department of Psychology and Neuroscience, University of Colorado, Boulder. Dr. Raison is with the School of Human Ecology and the School of Medicine and Public Health, University of Wisconsin-Madison
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Archer AE, Von Schulze AT, Geiger PC. Exercise, heat shock proteins and insulin resistance. Philos Trans R Soc Lond B Biol Sci 2018; 373:rstb.2016.0529. [PMID: 29203714 DOI: 10.1098/rstb.2016.0529] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2017] [Indexed: 12/30/2022] Open
Abstract
Best known as chaperones, heat shock proteins (HSPs) also have roles in cell signalling and regulation of metabolism. Rodent studies demonstrate that heat treatment, transgenic overexpression and pharmacological induction of HSP72 prevent high-fat diet-induced glucose intolerance and skeletal muscle insulin resistance. Overexpression of skeletal muscle HSP72 in mice has been shown to increase endurance running capacity nearly twofold and increase mitochondrial content by 50%. A positive correlation between HSP72 mRNA expression and mitochondrial enzyme activity has been observed in human skeletal muscle, and HSP72 expression is markedly decreased in skeletal muscle of insulin resistant and type 2 diabetic patients. In addition, decreased levels of HSP72 correlate with insulin resistance and non-alcoholic fatty liver disease progression in livers from obese patients. These data suggest the targeted induction of HSPs could be a therapeutic approach for preventing metabolic disease by maintaining the body's natural stress response. Exercise elicits a number of metabolic adaptations and is a powerful tool in the prevention and treatment of insulin resistance. Exercise training is also a stimulus for increased HSP expression. Although the underlying mechanism(s) for exercise-induced HSP expression are currently unknown, the HSP response may be critical for the beneficial metabolic effects of exercise. Exercise-induced extracellular HSP release may also contribute to metabolic homeostasis by actively restoring HSP72 content in insulin resistant tissues containing low endogenous levels of HSPs.This article is part of the theme issue 'Heat shock proteins as modulators and therapeutic targets of chronic disease: an integrated perspective'.
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Affiliation(s)
- Ashley E Archer
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Alex T Von Schulze
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Paige C Geiger
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, KS, USA
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Clinical Effects of Regular Dry Sauna Bathing: A Systematic Review. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:1857413. [PMID: 29849692 PMCID: PMC5941775 DOI: 10.1155/2018/1857413] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 12/14/2017] [Accepted: 01/08/2018] [Indexed: 12/13/2022]
Abstract
Introduction Many health benefits are claimed by individuals and facilities promoting sauna bathing; however the medical evidence to support these claims is not well established. This paper aims to systematically review recent research on the effects of repeated dry sauna interventions on human health. Methods A systematic search was made of medical databases for studies reporting on the health effects of regular dry sauna bathing on humans from 2000 onwards. Risk of bias was assessed according to the Cochrane Collaboration guidelines. Results Forty clinical studies involving a total of 3855 participants met the inclusion criteria. Only 13 studies were randomized controlled trials and most studies were small (n < 40). Reported outcome measures were heterogeneous with most studies reporting beneficial health effects. Only one small study (n = 10) reported an adverse health outcome of disrupted male spermatogenesis, demonstrated to be reversible when ceasing sauna activity. Conclusions Regular dry sauna bathing has potential health benefits. More data of higher quality is needed on the frequency and extent of adverse side effects. Further study is also needed to determine the optimal frequency and duration of distinct types of sauna bathing for targeted health effects and the specific clinical populations who are most likely to benefit.
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Shiralkar VV, Jagtap PE, Belwalkar GJ, Nagane NS, Dhonde SP. Effect of Steam Sauna Bath on Fasting Blood Glucose Level in Healthy Adults. ACTA ACUST UNITED AC 2018. [DOI: 10.5005/jp-journals-10054-0047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Far-infrared protects vascular endothelial cells from advanced glycation end products-induced injury via PLZF-mediated autophagy in diabetic mice. Sci Rep 2017; 7:40442. [PMID: 28071754 PMCID: PMC5223182 DOI: 10.1038/srep40442] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 12/06/2016] [Indexed: 12/22/2022] Open
Abstract
The accumulation of advanced glycation end products (AGEs) in diabetic patients induces vascular endothelial injury. Promyelocytic leukemia zinc finger protein (PLZF) is a transcription factor that can be activated by low-temperature far-infrared (FIR) irradiation to exert beneficial effects on the vascular endothelium. In the present study, we investigated the influence of FIR-induced PLZF activation on AGE-induced endothelial injury both in vitro and in vivo. FIR irradiation inhibited AGE-induced apoptosis in human umbilical vein endothelial cells (HUVECs). PLZF activation increased the expression of phosphatidylinositol-3 kinases (PI3K), which are important kinases in the autophagic signaling pathway. FIR-induced PLZF activation led to autophagy in HUVEC, which was mediated through the upregulation of PI3K. Immunofluorescence staining showed that AGEs were engulfed by HUVECs and localized to lysosomes. FIR-induced autophagy promoted AGEs degradation in HUVECs. In nicotinamide/streptozotocin-induced diabetic mice, FIR therapy reduced serum AGEs and AGEs deposition at the vascular endothelium. FIR therapy also reduced diabetes-induced inflammatory markers in the vascular endothelium and improved vascular endothelial function. These protective effects of FIR therapy were not found in PLZF-knockout mice. Our data suggest that FIR-induced PLZF activation in vascular endothelial cells protects the vascular endothelium in diabetic mice from AGE-induced injury.
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21
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Brunt VE, Howard MJ, Francisco MA, Ely BR, Minson CT. Passive heat therapy improves endothelial function, arterial stiffness and blood pressure in sedentary humans. J Physiol 2016; 594:5329-42. [PMID: 27270841 DOI: 10.1113/jp272453] [Citation(s) in RCA: 183] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/24/2016] [Indexed: 01/22/2023] Open
Abstract
KEY POINTS A recent 30 year prospective study showed that lifelong sauna use reduces cardiovascular-related and all-cause mortality; however, the specific cardiovascular adaptations that cause this chronic protection are currently unknown. We investigated the effects of 8 weeks of repeated hot water immersion ('heat therapy') on various biomarkers of cardiovascular health in young, sedentary humans. We showed that, relative to a sham group which participated in thermoneutral water immersion, heat therapy increased flow-mediated dilatation, reduced arterial stiffness, reduced mean arterial and diastolic blood pressure, and reduced carotid intima media thickness, with changes all on par or greater than what is typically observed in sedentary subjects with exercise training. Our results show for the first time that heat therapy has widespread and robust effects on vascular function, and as such, could be a viable treatment option for improving cardiovascular health in a variety of patient populations, particularly those with limited exercise tolerance and/or capabilities. ABSTRACT The majority of cardiovascular diseases are characterized by disorders of the arteries, predominantly caused by endothelial dysfunction and arterial stiffening. Intermittent hot water immersion ('heat therapy') results in elevations in core temperature and changes in cardiovascular haemodynamics, such as cardiac output and vascular shear stress, that are similar to exercise, and thus may provide an alternative means of improving health which could be utilized by patients with low exercise tolerance and/or capabilities. We sought to comprehensively assess the effects of 8 weeks of heat therapy on biomarkers of vascular function in young, sedentary subjects. Twenty young, sedentary subjects were assigned to participate in 8 weeks (4-5 times per week) of heat therapy (n = 10; immersion in a 40.5°C bath sufficient to maintain rectal temperature ≥ 38.5°C for 60 min per session) or thermoneutral water immersion (n = 10; sham). Eight weeks of heat therapy increased flow-mediated dilatation from 5.6 ± 0.3 to 10.9 ± 1.0% (P < 0.01) and superficial femoral dynamic arterial compliance from 0.06 ± 0.01 to 0.09 ±0.01 mm(2) mmHg(-1) (P = 0.03), and reduced (i.e. improved) aortic pulse wave velocity from 7.1 ± 0.3 to 6.1 ± 0.3 m s(-1) (P = 0.03), carotid intima media thickness from 0.43 ± 0.01 to 0.37 ± 0.01 mm (P < 0.001), and mean arterial blood pressure from 83 ± 1 to 78 ± 2 mmHg (P = 0.02). No changes were observed in the sham group or for carotid arterial compliance, superficial femoral intima media thickness or endothelium-independent dilatation. Heat therapy improved endothelium-dependent dilatation, arterial stiffness, intima media thickness and blood pressure, indicating improved cardiovascular health. These data suggest heat therapy may provide a simple and effective tool for improving cardiovascular health in various populations.
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Affiliation(s)
- Vienna E Brunt
- Department of Human Physiology, University of Oregon, Eugene, OR, 97403, USA
| | - Matthew J Howard
- Department of Human Physiology, University of Oregon, Eugene, OR, 97403, USA
| | - Michael A Francisco
- Department of Human Physiology, University of Oregon, Eugene, OR, 97403, USA
| | - Brett R Ely
- Department of Human Physiology, University of Oregon, Eugene, OR, 97403, USA
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22
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Brenke R. Das Potenzial der Sauna im Rahmen der Prävention - eine Übersicht neuerer Erkenntnisse. Complement Med Res 2015; 22:320-5. [DOI: 10.1159/000441402] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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A Parallel-Arm Randomized Controlled Trial to Assess the Effects of a Far-Infrared-Emitting Collar on Neck Disorder. MATERIALS 2015; 8:5862-5876. [PMID: 28793539 PMCID: PMC5512659 DOI: 10.3390/ma8095279] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/08/2015] [Accepted: 08/27/2015] [Indexed: 11/17/2022]
Abstract
The purpose of this study is to assess the beneficial effects of a far-infrared-emitting collar (FIRC) on the management of neck disorders. A neck disorder is generalized as neck muscle pain and its relative mental disorders because the etiologies of the neck's multidimensional syndrome are either muscle impairment or psychiatric distress. This is the first study to determine the efficacy of a FIRC by evaluating objective physical evidence and psychometric self-reports using a parallel-arm randomized sham-controlled and single-blinded design. In this trial, 60 participants with neck disorders were observed at baseline and post-intervention. Compared to the placebo group after a 30-min intervention, the FIRC demonstrated a statistically significant biological effect in elevating skin temperature and promoting blood circulation with p-values 0.003 and 0.020, respectively. In addition, FIRC application significantly reduced neck muscle tension, relieved pain, ameliorated fatigue, improved depression, and decreased anxiety. The FIRC could therefore be a potential treatment for neck disorders.
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Krause M, Ludwig MS, Heck TG, Takahashi HK. Heat shock proteins and heat therapy for type 2 diabetes: pros and cons. Curr Opin Clin Nutr Metab Care 2015; 18:374-80. [PMID: 26049635 DOI: 10.1097/mco.0000000000000183] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW Heat therapy, such as sauna and hot tub, has become an increasingly regular therapeutical practice around the world since several studies have shown benefits of heat therapy in metabolic and cardiovascular diseases. The use of heat therapy in people with type 2 diabetes mellitus revealed a striking reduction of 1% unit in the glycated hemoglobin, suggesting this therapy for the treatment of diabetes. Herein, we shall discuss the use of heat therapy and the mechanisms involved, and suggest a provisional guide for the use of heat therapy in obesity and diabetes. RECENT FINDINGS Human studies indicate that heat therapy reduces fasting glycemia, glycated hemoglobin, body weight, and adiposity. Animal studies have indicated that nitric oxide and the increase in heat shock protein 70 expression is involved in the improvements induced by heat therapy on insulin sensitivity, adiposity, inflammation, and vasomotricity. SUMMARY Heat therapy is a promising and inexpensive tool for the treatment of obesity and diabetes. We proposed that transient increments in nitric oxide and heat shock protein 70 levels may explain the benefits of heat therapy. We suggest that heat therapy (sauna: 80-100°C; hot tub: at 40°C) for 15 min, three times a week, for 3 months, is a safe method to test its efficiency.
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Affiliation(s)
- Mauricio Krause
- aLaboratory of Cellular Physiology, Department of Physiology, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre bResearch Group in Physiology (GPeF), Postgraduate Program in Integral Attention to Health (PPGAIS-UNIJUI/UNICRUZ), Department of Life Sciences, Regional University of Northwestern Rio Grande do Sul State (UNIJUJÍ), Ijuí, Rio Grande do Sul, Brazil
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Raison CL, Hale MW, Williams LE, Wager TD, Lowry CA. Somatic influences on subjective well-being and affective disorders: the convergence of thermosensory and central serotonergic systems. Front Psychol 2015; 5:1580. [PMID: 25628593 PMCID: PMC4292224 DOI: 10.3389/fpsyg.2014.01580] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 12/21/2014] [Indexed: 12/20/2022] Open
Abstract
Current theories suggest that the brain is the sole source of mental illness. However, affective disorders, and major depressive disorder (MDD) in particular, may be better conceptualized as brain-body disorders that involve peripheral systems as well. This perspective emphasizes the embodied, multifaceted physiology of well-being, and suggests that afferent signals from the body may contribute to cognitive and emotional states. In this review, we focus on evidence from preclinical and clinical studies suggesting that afferent thermosensory signals contribute to well-being and depression. Although thermoregulatory systems have traditionally been conceptualized as serving primarily homeostatic functions, increasing evidence suggests neural pathways responsible for regulating body temperature may be linked more closely with emotional states than previously recognized, an affective warmth hypothesis. Human studies indicate that increasing physical warmth activates brain circuits associated with cognitive and affective functions, promotes interpersonal warmth and prosocial behavior, and has antidepressant effects. Consistent with these effects, preclinical studies in rodents demonstrate that physical warmth activates brain serotonergic neurons implicated in antidepressant-like effects. Together, these studies suggest that (1) thermosensory pathways interact with brain systems that control affective function, (2) these pathways are dysregulated in affective disorders, and (3) activating warm thermosensory pathways promotes a sense of well-being and has therapeutic potential in the treatment of affective disorders.
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Affiliation(s)
- Charles L. Raison
- Department of Psychiatry, Norton School of Family and Consumer Sciences, College of Medicine, College of Agriculture and Life Sciences, University of ArizonaTucson, AZ, USA
| | - Matthew W. Hale
- Department of Psychology, School of Psychological Science, La Trobe UniversityBundoora, Australia
| | - Lawrence E. Williams
- Marketing Division, Leeds School of Business, University of Colorado BoulderBoulder, CO, USA
| | - Tor D. Wager
- Department of Psychology and Neuroscience, University of Colorado BoulderBoulder, CO, USA
| | - Christopher A. Lowry
- Department of Integrative Physiology, University of Colorado BoulderBoulder, CO, USA
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Hooper PL, Balogh G, Rivas E, Kavanagh K, Vigh L. The importance of the cellular stress response in the pathogenesis and treatment of type 2 diabetes. Cell Stress Chaperones 2014; 19:447-64. [PMID: 24523032 PMCID: PMC4041942 DOI: 10.1007/s12192-014-0493-8] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 12/24/2013] [Accepted: 01/02/2014] [Indexed: 01/06/2023] Open
Abstract
Organisms have evolved to survive rigorous environments and are not prepared to thrive in a world of caloric excess and sedentary behavior. A realization that physical exercise (or lack of it) plays a pivotal role in both the pathogenesis and therapy of type 2 diabetes mellitus (t2DM) has led to the provocative concept of therapeutic exercise mimetics. A decade ago, we attempted to simulate the beneficial effects of exercise by treating t2DM patients with 3 weeks of daily hyperthermia, induced by hot tub immersion. The short-term intervention had remarkable success, with a 1 % drop in HbA1, a trend toward weight loss, and improvement in diabetic neuropathic symptoms. An explanation for the beneficial effects of exercise and hyperthermia centers upon their ability to induce the cellular stress response (the heat shock response) and restore cellular homeostasis. Impaired stress response precedes major metabolic defects associated with t2DM and may be a near seminal event in the pathogenesis of the disease, tipping the balance from health into disease. Heat shock protein inducers share metabolic pathways associated with exercise with activation of AMPK, PGC1-a, and sirtuins. Diabetic therapies that induce the stress response, whether via heat, bioactive compounds, or genetic manipulation, improve or prevent all of the morbidities and comorbidities associated with the disease. The agents reduce insulin resistance, inflammatory cytokines, visceral adiposity, and body weight while increasing mitochondrial activity, normalizing membrane structure and lipid composition, and preserving organ function. Therapies restoring the stress response can re-tip the balance from disease into health and address the multifaceted defects associated with the disease.
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Affiliation(s)
- Philip L. Hooper
- />Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO USA
| | - Gabor Balogh
- />Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
| | - Eric Rivas
- />Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital of Dallas and University of Texas Southwestern Medical Center, Dallas, TX USA
- />Department of Kinesiology, Texas Woman’s University, Denton, TX USA
| | - Kylie Kavanagh
- />Department of Pathology, Wake Forest School of Medicine, Winston–Salem, NC USA
| | - Laszlo Vigh
- />Institute of Biochemistry, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
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Lai CH, Leung TK, Peng CW, Chang KH, Lai MJ, Lai WF, Chen SC. Effects of far-infrared irradiation on myofascial neck pain: a randomized, double-blind, placebo-controlled pilot study. J Altern Complement Med 2013; 20:123-9. [PMID: 24152215 DOI: 10.1089/acm.2013.0122] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES The objective of this study was to determine the relative efficacy of irradiation using a device containing a far-infrared emitting ceramic powder (cFIR) for the management of chronic myofascial neck pain compared with a control treatment. DESIGN This was a randomized, double-blind, placebo-controlled pilot study. PARTICIPANTS The study comprised 48 patients with chronic, myofascial neck pain. INTERVENTION Patients were randomly assigned to the experimental group or the control (sham-treatment) group. The patients in the experimental group wore a cFIR neck device for 1 week, and the control group wore an inert neck device for 1 week. MAIN OUTCOME MEASUREMENT Quantitative measurements based on a visual analogue scale (VAS) scoring of pain, a sleep quality assessment, pressure-pain threshold (PPT) testing, muscle tone and compliance analysis, and skin temperature analysis were obtained. RESULTS Both the experimental and control groups demonstrated significant improvement in pain scores. However, no statistically significant difference in the pain scores was observed between the experimental and control groups. Significant decreases in muscle stiffness in the upper regions of the trapezius muscles were reported in the experimental group after 1 week of treatment. CONCLUSIONS Short-term treatment using the cFIR neck device partly reduced muscle stiffness. Although the differences in the VAS and PPT scores for the experimental and control groups were not statistically significant, the improvement in muscle stiffness in the experimental group warrants further investigation of the long-term effects of cFIR treatment for pain management.
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Affiliation(s)
- Chien-Hung Lai
- 1 Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University , Taipei, Taiwan, Republic of China
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Abstract
Growing numbers of people with diabetes in the U.S. and worldwide use complementary and alternative medicine (CAM) while receiving conventional medical therapy as a means of managing disease and improving quality of life. Although herbal and natural products are the most commonly used forms of CAM, mind-body approaches are also gaining popularity and scientific interest. Current findings suggest that CAM may help to promote an integrative, participatory model of diabetes care that relies upon provider knowledge of evidence-based therapies and patient disclosure of CAM use. Emerging evidence of positive findings with some natural products and mind-body therapies have been reported in glycemic parameters, markers of cardiovascular risk, and quality of life in individuals with type 2 diabetes; however, further investigation in well-designed, adequately powered studies is needed before use of CAM modalities can be recommended as part of clinical care.
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Affiliation(s)
- Monica M DiNardo
- University of Pittsburgh School of Nursing, 3500 Victoria Street, Pittsburgh, PA 15261, USA.
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29
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Thorpe CT, Fahey LE, Johnson H, Deshpande M, Thorpe JM, Fisher EB. Facilitating healthy coping in patients with diabetes: a systematic review. DIABETES EDUCATOR 2012; 39:33-52. [PMID: 23073967 DOI: 10.1177/0145721712464400] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PURPOSE The purpose of this study is to summarize recent literature on approaches to supporting healthy coping in diabetes in 2 specific areas: (1) the impact of different approaches to diabetes treatment on healthy coping and (2) the effectiveness of interventions specifically designed to support healthy coping. METHODS A PubMed search identified 129 articles published August 1, 2006, to April 30, 2011, addressing diabetes in relation to emotion, quality of life, depression, adjustment, anxiety, coping, family therapy, behavior therapy, psychotherapy, problem solving, couples therapy, or marital therapy. RESULTS Evidence suggests that treatment choice may significantly influence quality of life, with treatment intensification in response to poor metabolic control often improving quality of life. The recent literature provides support for a variety of healthy coping interventions in diverse populations, including diabetes self-management education, support groups, problem-solving approaches, and coping skills interventions for improving a range of outcomes; cognitive behavior therapy and collaborative care for treating depression; and family therapy for improving coping in youths. CONCLUSIONS Healthy coping in diabetes has received substantial attention in the past 5 years. A variety of approaches show positive results. Research is needed to compare the effectiveness of different approaches in different populations and determine how to overcome barriers to intervention dissemination and implementation.
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Affiliation(s)
- Carolyn T Thorpe
- Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, Pennsylvania (Dr C. Thorpe, Dr J. Thorpe),University of Pittsburgh School of Pharmacy, Pittsburgh, Pennsylvania (Dr C. Thorpe, Dr J. Thorpe)
| | - Lauren E Fahey
- Department of Population Health Sciences, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin (Ms Fahey)
| | - Heather Johnson
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin (Dr Johnson)
| | - Maithili Deshpande
- University of Wisconsin School of Pharmacy, Madison, Wisconsin (Ms Deshpande)
| | - Joshua M Thorpe
- Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, Pennsylvania (Dr C. Thorpe, Dr J. Thorpe),University of Pittsburgh School of Pharmacy, Pittsburgh, Pennsylvania (Dr C. Thorpe, Dr J. Thorpe)
| | - Edwin B Fisher
- University of North Carolina School of Public Health, Chapel Hill, North Carolina (Dr Fisher)
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30
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Hale MW, Raison CL, Lowry CA. Integrative physiology of depression and antidepressant drug action: implications for serotonergic mechanisms of action and novel therapeutic strategies for treatment of depression. Pharmacol Ther 2012; 137:108-18. [PMID: 23017938 DOI: 10.1016/j.pharmthera.2012.09.005] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Accepted: 09/10/2012] [Indexed: 11/15/2022]
Abstract
Major depressive disorder (MDD) is predicted to be the second leading cause of disability worldwide by the year 2020. Currently available treatments for MDD are suboptimal. Only 50% of MDD patients recover in less than 12 weeks with adequate treatment, and up to 20% of patients will fail to adequately respond to all currently available interventions. Moreover, current treatments come at the cost of significant central nervous system (CNS) side effects, further highlighting the need for more effective treatments with fewer side effects. A greater mechanistic understanding of MDD and the actions of antidepressant drugs would provide opportunities for development of novel therapeutic approaches to treatment. With this aim in mind, we explore the novel, but empirically supported, hypothesis that an evolutionarily ancient thermoafferent pathway, signaling via the spinoparabrachial pathway from serotonergic sensory cells in the skin and other epithelial linings to serotonergic neurons and depression-related circuits in the brain, is dysfunctional in MDD and that antidepressant therapies, including antidepressant drugs and exercise, act by restoring its function.
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Affiliation(s)
- Matthew W Hale
- School of Psychological Science, La Trobe University, Melbourne 3086, Australia
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31
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Vatansever F, Hamblin MR. Far infrared radiation (FIR): its biological effects and medical applications. ACTA ACUST UNITED AC 2012; 4:255-266. [PMID: 23833705 DOI: 10.1515/plm-2012-0034] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Far infrared (FIR) radiation (λ = 3-100 μm) is a subdivision of the electromagnetic spectrum that has been investigated for biological effects. The goal of this review is to cover the use of a further sub-division (3- 12 μm) of this waveband, that has been observed in both in vitro and in vivo studies, to stimulate cells and tissue, and is considered a promising treatment modality for certain medical conditions. Technological advances have provided new techniques for delivering FIR radiation to the human body. Specialty lamps and saunas, delivering pure FIR radiation (eliminating completely the near and mid infrared bands), have became safe, effective, and widely used sources to generate therapeutic effects. Fibers impregnated with FIR emitting ceramic nanoparticles and woven into fabrics, are being used as garments and wraps to generate FIR radiation, and attain health benefits from its effects.
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Affiliation(s)
- Fatma Vatansever
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA; and Department of Dermatology, Harvard Medical School, Boston, MA, USA
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