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Gibbons C, Beaulieu K, Almiron-Roig E, Navas-Carretero S, Martínez JA, O'Hara B, O'Connor D, Nazare JA, Le Bail A, Rannou C, Hardman C, Wilton M, Kjølbæk L, Scott C, Moshoyiannis H, Raben A, Harrold JA, Halford JCG, Finlayson G. Acute and two-week effects of neotame, stevia rebaudioside M and sucrose-sweetened biscuits on postprandial appetite and endocrine response in adults with overweight/obesity-a randomised crossover trial from the SWEET consortium. EBioMedicine 2024; 102:105005. [PMID: 38553262 PMCID: PMC11026940 DOI: 10.1016/j.ebiom.2024.105005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 01/26/2024] [Accepted: 01/28/2024] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND Sweeteners and sweetness enhancers (S&SE) are used to replace energy yielding sugars and maintain sweet taste in a wide range of products, but controversy exists about their effects on appetite and endocrine responses in reduced or no added sugar solid foods. The aim of the current study was to evaluate the acute (1 day) and repeated (two-week daily) ingestive effects of 2 S&SE vs. sucrose formulations of biscuit with fruit filling on appetite and endocrine responses in adults with overweight and obesity. METHODS In a randomised crossover trial, 53 healthy adults (33 female, 20 male) with overweight/obesity in England and France consumed biscuits with fruit filling containing 1) sucrose, or reformulated with either 2) Stevia Rebaudioside M (StRebM) or 3) Neotame daily during three, two-week intervention periods with a two-week washout. The primary outcome was composite appetite score defined as [desire to eat + hunger + (100 - fullness) + prospective consumption]/4. FINDINGS Each formulation elicited a similar reduction in appetite sensations (3-h postprandial net iAUC). Postprandial insulin (2-h iAUC) was lower after Neotame (95% CI (0.093, 0.166); p < 0.001; d = -0.71) and StRebM (95% CI (0.133, 0.205); p < 0.001; d = -1.01) compared to sucrose, and glucose was lower after StRebM (95% CI (0.023, 0.171); p < 0.05; d = -0.39) but not after Neotame (95% CI (-0.007, 0.145); p = 0.074; d = -0.25) compared to sucrose. There were no differences between S&SE or sucrose formulations on ghrelin, glucagon-like peptide 1 or pancreatic polypeptide iAUCs. No clinically meaningful differences between acute vs. two-weeks of daily consumption were found. INTERPRETATION In conclusion, biscuits reformulated to replace sugar using StRebM or Neotame showed no differences in appetite or endocrine responses, acutely or after a two-week exposure, but can reduce postprandial insulin and glucose response in adults with overweight or obesity. FUNDING The present study was funded by the Horizon 2020 program: Sweeteners and sweetness enhancers: Impact on health, obesity, safety and sustainability (acronym: SWEET, grant no: 774293).
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Affiliation(s)
- Catherine Gibbons
- School of Psychology, Faculty of Medicine & Health, University of Leeds, UK.
| | - Kristine Beaulieu
- School of Psychology, Faculty of Medicine & Health, University of Leeds, UK
| | - Eva Almiron-Roig
- University of Navarra, Faculty of Pharmacy and Nutrition, Dept. of Food Science and Physiology, Center for Nutrition Research, Pamplona, Spain; Navarra Institute for Health Research (IdiSNa), Pamplona, Spain
| | - Santiago Navas-Carretero
- University of Navarra, Faculty of Pharmacy and Nutrition, Dept. of Food Science and Physiology, Center for Nutrition Research, Pamplona, Spain; Navarra Institute for Health Research (IdiSNa), Pamplona, Spain; Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain
| | - J Alfredo Martínez
- University of Navarra, Faculty of Pharmacy and Nutrition, Dept. of Food Science and Physiology, Center for Nutrition Research, Pamplona, Spain; Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition (CIBERobn), Institute of Health Carlos III, Madrid, Spain
| | - Beverley O'Hara
- School of Psychology, Faculty of Medicine & Health, University of Leeds, UK
| | - Dominic O'Connor
- School of Psychology, Faculty of Medicine & Health, University of Leeds, UK
| | - Julie-Anne Nazare
- Human Nutrition Research Center Rhône-Alpes, Lyon 1 Claude Bernard University, France
| | | | | | - Charlotte Hardman
- Department of Psychology, Institute of Population Health, University of Liverpool, UK
| | - Moon Wilton
- Department of Psychology, Institute of Population Health, University of Liverpool, UK
| | - Louise Kjølbæk
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark
| | - Corey Scott
- Core Research and Development, Cargill, Inc, USA
| | | | - Anne Raben
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Denmark; Clinical Research, Copenhagen University Hospital - Steno Diabetes Center Copenhagen, Herlev, Denmark
| | - Joanne A Harrold
- Department of Psychology, Institute of Population Health, University of Liverpool, UK
| | - Jason C G Halford
- School of Psychology, Faculty of Medicine & Health, University of Leeds, UK
| | - Graham Finlayson
- School of Psychology, Faculty of Medicine & Health, University of Leeds, UK
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Gálvez I, Fioravanti A, Ortega E. Spa therapy and peripheral serotonin and dopamine function: a systematic review. Int J Biometeorol 2024; 68:153-161. [PMID: 37950094 PMCID: PMC10752831 DOI: 10.1007/s00484-023-02579-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/23/2023] [Accepted: 11/04/2023] [Indexed: 11/12/2023]
Abstract
Spa therapy consists of multiple techniques based on the healing effects of water, including hydrotherapy, balneotherapy, and mud therapy, often combined with therapeutic exercises, massage, or physical therapy. Balneotherapy is a clinically effective complementary approach in the treatment of low-grade inflammation- and stress-related pathologies, especially rheumatic conditions due to its anti-inflammatory properties. The main objective of this investigation was to conduct a systematic review analyzing the available evidence on the effect of spa therapy on serotonin and dopamine function. The databases PubMed, Web of Science, Scopus, and Cochrane Central Register of Controlled Trials (CENTRAL) were used from June to July 2023. Exclusion criteria were (1) articles not written in English, (2) full text not available, (3) article not related to the objective of the review. JADAD scale was used for methodological quality evaluation. Four studies were included in the systematic review. Two studies were related to serotonin in healthy individuals, one to serotonin in fibromyalgia, and one to dopamine in healthy individuals. One of the studies evaluated hydrotherapy, another one balneotherapy and mud-bath therapy, and the other two assessed balneotherapy interventions. Studies were very heterogeneous, and their methodological quality was low, making it difficult to draw clear conclusions regarding the effect of spa therapy on peripheral serotonin and dopamine function. The findings of this review highlight the lack of studies evaluating these neurotransmitters and hormones in the context of spa therapy. Further research is needed to evaluate the potential effects of these therapies on serotonin or dopamine function.
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Affiliation(s)
- Isabel Gálvez
- Immunophysiology Research Group, Instituto Universitario de Investigación Biosanitaria de Extremadura (INUBE), 06006, Badajoz, Spain
- Departamento de Enfermería, Facultad de Medicina y Ciencias de la Salud, Universidad de Extremadura, 06006, Badajoz, Spain
| | - Antonella Fioravanti
- Organisation Mondiale du Thermalisme (OMTh) - World Hydrothermal Organization, Sede Palazzo Terme, via Vittorio Emanuele, 38056, Levico Terme, Italy
| | - Eduardo Ortega
- Immunophysiology Research Group, Instituto Universitario de Investigación Biosanitaria de Extremadura (INUBE), 06006, Badajoz, Spain.
- Departamento de Fisiología, Facultad de Ciencias, Universidad de Extremadura, 06071, Badajoz, Spain.
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Schmidt M. Which Patients Need Chemotherapy? From Pathological Risk Factors to Gene Signatures and Evaluation of Endocrine Response. Breast Care (Basel) 2023; 18:422-427. [PMID: 38125921 PMCID: PMC10730099 DOI: 10.1159/000530818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 04/20/2023] [Indexed: 12/23/2023] Open
Abstract
Background Chemotherapy, used either before or after surgery, has significantly improved survival in early breast cancer. Accurate risk assessment is essential to avoid both overtreatment and undertreatment. This review provides an overview of the evolution of chemotherapy as well as risk factors for tailored systemic therapies in early breast cancer - from pathologic risk factors to gene expression signatures to endocrine response assessment. Summary Chemotherapy has improved dramatically in recent decades from its beginnings with conventionally dosed cyclophosphamide plus methotexate plus 5-fluorouracil to dose-dense anthracycline- and taxane-containing regimens. Similarly, risk assessment has evolved starting from traditional pathologic risk factors such as tumor size, axillary nodal status, and grading. In recent decades, gene expression signatures have improved prognostic accuracy with a high level of evidence. In turn, these signatures can be further improved by incorporating the aforementioned pathologic factors. As an important step away from this static assessment, dynamic assessment of proliferation factor Ki-67 after short-term preoperative endocrine treatment has gained interest to improve risk assessment in early hormone receptor-positive breast cancer. Key Message This review highlights advances in chemotherapy and risk assessment in early breast cancer, from pathologic risk factors for recurrence to gene expression signatures and endocrine response assessment. These developments are leading to better risk stratification and thus better adaptation of therapies.
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Affiliation(s)
- Marcus Schmidt
- Department of Obstetrics and Gynecology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
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Saha S, Chukwuka AV, Mukherjee D, Dhara K, Pal P, Saha NC. Physiological (haematological, growth and endocrine) and biochemical biomarker responses in air-breathing catfish, Clarias batrachus under long-term Captan® pesticide exposures. Environ Toxicol Pharmacol 2022; 90:103815. [PMID: 35065295 DOI: 10.1016/j.etap.2022.103815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 01/13/2022] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
The sub-lethal toxicity of Captan® on selected haematological (Hemoglobin, Haematocrit, Mean Corpuscular Hemoglobin) growth (Condition factor, Hepatosomatic Index, Specific Growth Rate), biochemical (serum glucose, protein), and endocrine parameters (growth hormone, T3 and T4) in Clarias batrachus was examined under chronic exposures. Captan® was administered at predetermined exposure concentrations (0.53 and 1.06 mg/L) and monitored on days 15, 30, and 45 of the experimental periods. The experimental groups showed significantly lower values (p < 0.05) of haemoglobin content, hematocrit, MCH in Captan® exposed fish compared to control. Serum protein, k-factor and SGR were significantly lower in exposed fish. Endocrine responses (T3 and T4) emerged as the most sensitive biomarker category, depicting modulated responses between sub-chronic exposure at day-15 and chronic responses at day-45. In general, biomarker depictions indicate that Captan® exposures are capable of inducing stress-specific effects at the biochemical and physiological levels negatively impacting the overall health and longevity of such animals.
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Affiliation(s)
- Shubhajit Saha
- Department of Zoology, Sundarban Hazi Desarat College, Pathankhali, South 24 Parganas, 743611 West Bengal, India
| | - Azubuike V Chukwuka
- National Environmental Standards and Regulations Enforcement Agency (NESREA), Osogbo, Osun State, Nigeria.
| | - Dip Mukherjee
- Department of Zool ogy, S.B.S. Government College, Hili, Mera Aptair, Balurghat, Dakshin Dinajpur 733126, West Bengal, India
| | - Kishore Dhara
- Freshwater Fisheries Research & Training Centre, Directorate of Fisheries, Kulia, Kalyani, Nadia 741235, West Bengal, India
| | - Prasenjit Pal
- College of Fisheries, Central Agricultural University (I), Lembucherra, Tripura 799210, India
| | - Nimai Chandra Saha
- Fishery and Ecotoxicology Research Laboratory, Department of Zoology, University of Burdwan, Purba Barddhaman, West Bengal, India.
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Liu X, Khansari AR, Tort L. Fish pituitary show an active immune response after in vitro stimulation with Vibrio bacterin. Gen Comp Endocrinol 2019; 275:65-72. [PMID: 30769010 DOI: 10.1016/j.ygcen.2019.02.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/25/2019] [Accepted: 02/08/2019] [Indexed: 11/21/2022]
Abstract
The pituitary is a central organ of the neuro-endocrine system in fish that plays critical roles in various physiological processes, including stress response and behavior. Although it is known that pituitary hormones can have a direct or indirect influence stimulating or suppressing the immune responses, whether there is a local immune response in the pituitary or what is the effect of the immune stimulus on the pituitary function in fish is unknown. With the aim to understand the interaction between the immune responses and the endocrine axes at the pituitary level, particularly the Hypothalamus-Pituitary-Interrenal (HPI) axis, pituitaries of rainbow trout (Oncorhynchus mykiss) were cultured in vitro, incubated with bacterin, or bacterin plus CRH, cortisol, human recombinant IL1β, or spleen medium for 3 h, and then genes involved in pro-inflammation (il1β, il8, tnfα1, ifnγ), anti-inflammation (tgfβ1b, il10), immune modulation (mhcIIa, c3, mif) and stress response (crhbp, pomca, pomcb, gr1) were tested. Data showed that, incubation with bacterin alone and bacterin plus recombinant IL1β or CRH, as well as medium from bacterin treated spleen caused significant up-regulation of pro-inflammatory genes il1β and il8, while down-regulated the anti-inflammatory gene tgfβ1b. Besides, recombinant IL1β plus bacterin or alone caused raise of mhcIIa and tnfa, respectively. On the contrary, just a slight or even no alteration was recorded in the expression of stress response genes including crhbp, pomca, pomcb and gr1 in the in vitro cultured trout pituitary following this stimulation. These results suggest a local immune gene equipment in the pituitary of fish, and the potential for fish pituitary to develop both innate and adaptive immune responses, whereas that immune stimulation was not able to evoke a significant endocrine stress response in vitro.
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Affiliation(s)
- Xiaohong Liu
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing 400715, China; Department of Cell Biology, Physiology and Immunology, Universitat Autonoma de Barcelona, 08193 Barcelona, Spain
| | - Ali R Khansari
- Department of Cell Biology, Physiology and Immunology, Universitat Autonoma de Barcelona, 08193 Barcelona, Spain
| | - Lluis Tort
- Department of Cell Biology, Physiology and Immunology, Universitat Autonoma de Barcelona, 08193 Barcelona, Spain.
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Rozek DC, Smith NB, Simons AD. Experimentally unpacking cognitive behavioral therapy: The effects of completing a thought record on affect and neuro endocrine responses to stress. Biol Psychol 2018; 138:104-109. [PMID: 30189232 DOI: 10.1016/j.biopsycho.2018.08.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 08/07/2018] [Accepted: 08/30/2018] [Indexed: 10/28/2022]
Abstract
Despite overall effectiveness of cognitive behavioral therapy (CBT), little is known about the effects of specific techniques used in CBT. Thought records are widely employed in CBT across disorders to target cognitions. The current study examined the effects of thought record completion on affective and physiological responses to a laboratory stressor. Participants underwent the Trier Social Stress Test (Kirschbaum & Hellhammer, 1993) and were randomized to a thought record condition (n = 50) or a control condition (n = 50). Affect and biological responses (i.e., cortisol, dehydroepiandrosterone, and alpha-amylase) were collected throughout the session. Participants in the thought record condition showed greater peak cortisol response following the stressor. No between group differences were found on other neuroendocrine or affect measures. Overall, results indicate completing a thought record impacts physiology (i.e., cortisol) and using experimental laboratory methods can provide additional information to inform our understanding of the components of CBT.
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Affiliation(s)
- David C Rozek
- University of Utah, Department of Psychiatry, Salt Lake City, UT, United States; National Center for Veterans Studies, University of Utah, Salt Lake City, UT, United States.
| | - Noelle B Smith
- VA Northeast Program Evaluation Center, VA Connecticut Healthcare System, West Haven, CT, United States; Yale School of Medicine, Department of Psychiatry, West Haven, CT, United States
| | - Anne D Simons
- Oregon Research Institute, Eugene, OR, United States; University of Oregon, Department of Psychology, Eugene, OR, United States
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Kapheim KM, Johnson MM. Juvenile hormone, but not nutrition or social cues, affects reproductive maturation in solitary alkali bees ( Nomia melanderi). ACTA ACUST UNITED AC 2017; 220:3794-3801. [PMID: 28821570 DOI: 10.1242/jeb.162255] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 08/15/2017] [Indexed: 12/12/2022]
Abstract
Eusocial insect colonies are defined by extreme variation in reproductive activity among castes, but the ancestral conditions from which this variation arose are unknown. Investigating the factors that contribute to variation in reproductive physiology among solitary insects that are closely related to social species can help to fill this gap. We experimentally tested the role of nutrition, juvenile hormone (JH) and social cues on reproductive maturation in solitary alkali bees (Halictidae: Nomia melanderi). We found that alkali bee females emerge from overwintering with small Dufour's glands and small ovaries, containing oocytes in the early stages of development. Oocyte maturation occurs rapidly, and is staggered between the two ovaries. Lab-reared females reached reproductive maturity without access to mates or nesting opportunities, and many had resorbed oocytes. Initial activation of these reproductive structures does not depend on pollen consumption, though dietary protein or lipids may be necessary for long-term reproductive activity. JH is likely to be a limiting factor in alkali bee reproductive activation, as females treated with JH were more likely to develop mature oocytes and Dufour's glands. Unlike for related social bees, the effects of JH were not suppressed by the presence of older, reproductive females. These results provide valuable insight into the factors that influence reproductive activity in an important native pollinator, and those that may have been particularly influential in the evolution of reproductive castes.
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Affiliation(s)
- Karen M Kapheim
- Utah State University, Department of Biology, 5305 Old Main Hill, Logan, UT 84322, USA
| | - Makenna M Johnson
- Utah State University, Department of Biology, 5305 Old Main Hill, Logan, UT 84322, USA
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Liu G, Zhu T, Zhang A, Li F, Qian W, Qian B. Heightened stress response and cognitive impairment after repeated neonatal sevoflurane exposures might be linked to excessive GABAAR-mediated depolarization. J Anesth 2016; 30:834-41. [PMID: 27435414 DOI: 10.1007/s00540-016-2215-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 07/05/2016] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Children with repeated exposures to anesthesia at an early age are at an increased risk of cognitive impairment. Data in the literature link increased developmental depolarizing γ-aminobutyric acid (GABA) type A receptor (GABAAR) at younger age to neurodevelopmental disorders. Here we investigated the involvement of GABAergic signaling during development in mediating the adverse effects of repeated sevoflurane exposures. METHODS Sprague-Dawley male rats received repeated exposures to 3 % sevoflurane for 2 h daily for 3 consecutive days on postnatal days (P) 4, 5, and 6; maternally separated and unseparated rats served as controls. A subgroup of rats received three injections of the Na(+)-K(+)-2Cl(-) cotransporter inhibitor, bumetanide (1.82 mg/kg, intraperitoneally) 15 min prior to initiation of each sevoflurane exposure. RESULTS The results showed that repeated neonatal sevoflurane exposures contribute to learning and memory impairment in the Morris water maze (MWM) at P60. The corticosterone level was significantly increased immediately after repeated neonatal sevoflurane exposures. Repeated neonatal sevoflurane exposures heightened the secretion of corticosterone in response to stress in P7 and P60 rats. Pretreatment of male rats prior to each sevoflurane exposure with bumetanide attenuated the corticosterone level immediately after repeated neonatal sevoflurane exposures, normalized endocrine response to stress at P7 and P60, and attenuated the sevoflurane-induced learning and memory impairment in the MWM. CONCLUSION These data suggested that the heightened stress response and cognitive impairment after repeated neonatal sevoflurane exposures might be linked to excessive GABAAR-mediated depolarization.
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Affiliation(s)
- Guanghai Liu
- Department of Anesthesiology, The First People's Hospital of Yancheng, Yancheng, 224005, Jiangsu, People's Republic of China
| | - Tiangui Zhu
- Department of Anesthesiology, The First People's Hospital of Yancheng, Yancheng, 224005, Jiangsu, People's Republic of China
| | - Aihua Zhang
- Department of Anesthesiology, The First People's Hospital of Yancheng, Yancheng, 224005, Jiangsu, People's Republic of China
| | - Feng Li
- Department of Anesthesiology, The First People's Hospital of Yancheng, Yancheng, 224005, Jiangsu, People's Republic of China
| | - Weidong Qian
- Department of Anesthesiology, The First People's Hospital of Yancheng, Yancheng, 224005, Jiangsu, People's Republic of China
| | - Bin Qian
- Department of Anesthesiology, The First People's Hospital of Yancheng, Yancheng, 224005, Jiangsu, People's Republic of China.
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Sasaki H, Morishima T, Hasegawa Y, Mori A, Ijichi T, Kurihara T, Goto K. 4 weeks of high-intensity interval training does not alter the exercise-induced growth hormone response in sedentary men. Springerplus 2014; 3:336. [PMID: 25806146 PMCID: PMC4363223 DOI: 10.1186/2193-1801-3-336] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 06/24/2014] [Indexed: 11/20/2022]
Abstract
This study determined the effects of high-intensity interval training on the exercise-induced growth hormone (GH) responses, whole body and regional fat content. Twenty-four sedentary males were randomized to either a high-intensity interval training (HIT) group or a low-intensity continuous training (LT) group. The HIT group performed intermittent exercises at 85% of
, whereas the LT group performed continuous exercise for 22 min at 45% of
. Before and after 4 weeks of training, hormonal and metabolic responses to acute exercise were determined. Acute exercise significantly increased GH concentrations in both groups (p < 0.05). However, the responses did not change after training period in either group. Furthermore, the training did not significantly affect intramyocellular or intrahepatic lipid content in either group. The present study indicates that 4 weeks of high-intensity interval training does not alter the exercise-induced GH responses, whole body fat mass or intramyocellular and intrahepatic lipid content in sedentary males.
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Affiliation(s)
- Hiroto Sasaki
- Graduate School of Sport and Health Science, Ritsumeikan University, Shiga, Japan
| | - Takuma Morishima
- Graduate School of Sport and Health Science, Ritsumeikan University, Shiga, Japan
| | - Yuta Hasegawa
- Graduate School of Sport and Health Science, Ritsumeikan University, Shiga, Japan
| | - Ayaka Mori
- Graduate School of Sport and Health Science, Ritsumeikan University, Shiga, Japan
| | - Toshiaki Ijichi
- Graduate School of Sport and Health Science, Ritsumeikan University, Shiga, Japan
| | - Toshiyuki Kurihara
- Graduate School of Sport and Health Science, Ritsumeikan University, Shiga, Japan ; Faculty of Sport and Health Sciences, Ritsumeikan University, 1-1-1, Nojihigashi, Kusatsu, Shiga 525-8577 Japan
| | - Kazushige Goto
- Graduate School of Sport and Health Science, Ritsumeikan University, Shiga, Japan ; Faculty of Sport and Health Sciences, Ritsumeikan University, 1-1-1, Nojihigashi, Kusatsu, Shiga 525-8577 Japan
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Abstract
Few studies have evaluated cortisol concentrations in horses with colic. In humans with septic shock, high cortisol levels are associated with an increased risk of death. The objectives of this study were to compare the serum total cortisol concentrations (STCCs) in horses with colic to those without colic, and to assess whether the STCC relates to the pathological nature or outcome of the disease. STCCs were determined at presentation in horses with colic and in systemically healthy 'control' horses. Horses with colic were grouped based on clinical and clinico-pathological parameters at admission, treatment, lesion type and location, and outcome. Univariable and multivariable logistic regression were performed using two different outcome measures: (a) whether the horse had colic or not (yes vs. no), and (b) horse STCC (≥200 nmol/L vs. <200 nmol/L). Horses were more likely to have colic if they presented with high STCCs (≥200 nmol/L compared with <200 nmol/L). Horses with colic and with STCCs ≥200nmol/L were more likely to have moderate or severe colic signs (compared with mild colic) and heart rates >45 beats per min (compared with ≤45 beats per min). It was concluded that colic in horses is associated with elevated STCCs, and increased STCC in horses with colic appears to relate to the severity of the disease. STCCs may provide additional decision-making and prognostic information in horses with colic but further studies are required to avoid misinterpretations associated with the wide variation in STCCs.
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Affiliation(s)
- T S Mair
- Bell Equine Veterinary Clinic, Mereworth, Maidstone, Kent ME18 5GS, UK
| | - C E Sherlock
- Bell Equine Veterinary Clinic, Mereworth, Maidstone, Kent ME18 5GS, UK.
| | - L A Boden
- Institute of Comparative Epidemiology, Faculty of Veterinary Medicine, University of Glasgow, 464 Bearsden Road, Glasgow G61 1QH, UK
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