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Gasser B, Fitze D, Franchi M, Frei A, Niederseer D, Schmied CM, Catuogno S, Frey W, Flück M. The Cardiovascular Response to Interval Exercise Is Modified by the Contraction Type and Training in Proportion to Metabolic Stress of Recruited Muscle Groups. SENSORS 2020; 21:s21010173. [PMID: 33383837 PMCID: PMC7795051 DOI: 10.3390/s21010173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/23/2020] [Accepted: 12/23/2020] [Indexed: 01/20/2023]
Abstract
Background: Conventional forms of endurance training based on shortening contractions improve aerobic capacity but elicit a detriment of muscle strength. We hypothesized that eccentric interval training, loading muscle during the lengthening phase of contraction, overcome this interference and potentially adverse cardiovascular reactions, enhancing both muscle metabolism and strength, in association with the stress experienced during exercise. Methods: Twelve healthy participants completed an eight-week program of work-matched progressive interval-type pedaling exercise on a soft robot under predominately concentric or eccentric load. Results: Eccentric interval training specifically enhanced the peak power of positive anaerobic contractions (+28%), mitigated the strain on muscle’s aerobic metabolism, and lowered hemodynamic stress during interval exercise, concomitant with a lowered contribution of positive work to the target output. Concentric training alone lowered blood glucose concentration during interval exercise and mitigated heart rate and blood lactate concentration during ramp exercise. Training-induced adjustments for lactate and positive peak power were independently correlated (p < 0.05, |r| > 0.7) with indices of metabolic and mechanical muscle stress during exercise. Discussion: Task-specific improvements in strength and muscle’s metabolic capacity were induced with eccentric interval exercise lowering cardiovascular risk factors, except for blood glucose concentration, possibly through altered neuromuscular coordination.
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Affiliation(s)
- Benedikt Gasser
- Departement für Sport, Bewegung und Gesundheit—Abteilung Rehabilitative und Regenerative Sportmedizin—Universität Basel—Birsstrasse, 320B CH, 4052 Basel, Switzerland;
| | - Daniel Fitze
- Laboratory for Muscle Plasticity, Departement of Orthopaedics Balgrist Campus, University of Zurich Lengghalde, 8008 Zürich, Switzerland; (D.F.); (A.F.); (S.C.); (W.F.)
- Balgrist University Hospital Forchstrasse 319, 8008 Zürich, Switzerland
| | - Martino Franchi
- Department of Biomedical Sciences, University of Padova, 35131 Padua, Italy;
| | - Annika Frei
- Laboratory for Muscle Plasticity, Departement of Orthopaedics Balgrist Campus, University of Zurich Lengghalde, 8008 Zürich, Switzerland; (D.F.); (A.F.); (S.C.); (W.F.)
- Balgrist University Hospital Forchstrasse 319, 8008 Zürich, Switzerland
| | - David Niederseer
- Sports Cardiology Section, Department of Cardiology, University Heart Center Zurich, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland; (D.N.); (C.M.S.)
| | - Christian M. Schmied
- Sports Cardiology Section, Department of Cardiology, University Heart Center Zurich, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland; (D.N.); (C.M.S.)
| | - Silvio Catuogno
- Laboratory for Muscle Plasticity, Departement of Orthopaedics Balgrist Campus, University of Zurich Lengghalde, 8008 Zürich, Switzerland; (D.F.); (A.F.); (S.C.); (W.F.)
- Balgrist University Hospital Forchstrasse 319, 8008 Zürich, Switzerland
| | - Walter Frey
- Laboratory for Muscle Plasticity, Departement of Orthopaedics Balgrist Campus, University of Zurich Lengghalde, 8008 Zürich, Switzerland; (D.F.); (A.F.); (S.C.); (W.F.)
- Balgrist University Hospital Forchstrasse 319, 8008 Zürich, Switzerland
| | - Martin Flück
- Laboratory for Muscle Plasticity, Departement of Orthopaedics Balgrist Campus, University of Zurich Lengghalde, 8008 Zürich, Switzerland; (D.F.); (A.F.); (S.C.); (W.F.)
- Balgrist University Hospital Forchstrasse 319, 8008 Zürich, Switzerland
- Correspondence:
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Kokosar M, Benrick A, Perfilyev A, Nilsson E, Källman T, Ohlsson C, Ling C, Stener-Victorin E. A Single Bout of Electroacupuncture Remodels Epigenetic and Transcriptional Changes in Adipose Tissue in Polycystic Ovary Syndrome. Sci Rep 2018; 8:1878. [PMID: 29382850 PMCID: PMC5790004 DOI: 10.1038/s41598-017-17919-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 12/04/2017] [Indexed: 12/13/2022] Open
Abstract
A single bout of electroacupuncture results in muscle contractions and increased whole body glucose uptake in women with polycystic ovary syndrome (PCOS). Women with PCOS have transcriptional and epigenetic alterations in the adipose tissue and we hypothesized that electroacupuncture induces epigenetic and transcriptional changes to restore metabolic alterations. Twenty-one women with PCOS received a single bout of electroacupuncture, which increased the whole body glucose uptake. In subcutaneous adipose tissue biopsies, we identified treatment-induced expression changes of 2369 genes (Q < 0.05) and DNA methylation changes of 7055 individual genes (Q = 0.11). The largest increase in expression was observed for FOSB (2405%), and the largest decrease for LOC100128899 (54%). The most enriched pathways included Acute phase response signaling and LXR/RXR activation. The DNA methylation changes ranged from 1-16%, and 407 methylation sites correlated with gene expression. Among genes known to be differentially expressed in PCOS, electroacupuncture reversed the expression of 80 genes, including PPARγ and ADIPOR2. Changes in the expression of Nr4a2 and Junb are reversed by adrenergic blockers in rats demonstrating that changes in gene expression, in part, is due to activation of the sympathetic nervous system. In conclusion, low-frequency electroacupuncture with muscle contractions remodels epigenetic and transcriptional changes that elicit metabolic improvement.
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Affiliation(s)
- Milana Kokosar
- Department of Physiology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anna Benrick
- Department of Physiology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- School of Health and Education, University of Skövde, Skövde, Sweden
| | - Alexander Perfilyev
- Epigenetics and Diabetes, Department of Clinical Sciences, Lund University Diabetes Centre, Lund University, Clinical Research Centre, Scania University Hospital, Malmö, Sweden
| | - Emma Nilsson
- Epigenetics and Diabetes, Department of Clinical Sciences, Lund University Diabetes Centre, Lund University, Clinical Research Centre, Scania University Hospital, Malmö, Sweden
| | - Thomas Källman
- Department of Medical Biochemistry and Microbiology, NBIS - National Bioinformatics Infrastructure Sweden, SciLifeLab, Uppsala University, Uppsala, Sweden
| | - Claes Ohlsson
- Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Charlotte Ling
- Epigenetics and Diabetes, Department of Clinical Sciences, Lund University Diabetes Centre, Lund University, Clinical Research Centre, Scania University Hospital, Malmö, Sweden
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Wang P, Zhou W, Yuan W, Huang L, Zhao N, Chen X. Prader-Willi syndrome in neonates: twenty cases and review of the literature in Southern China. BMC Pediatr 2016; 16:124. [PMID: 27506196 PMCID: PMC4977863 DOI: 10.1186/s12887-016-0662-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 08/02/2016] [Indexed: 12/23/2022] Open
Abstract
Background Prader-Willi syndrome is a rare genetic abnormality that can be challenging to diagnose early, but for which early interventions improve prognosis. Methods To improve understanding of Prader–Willi syndrome in neonates in Asia, we retrospectively analyzed the clinical records of 20 affected newborns diagnosed in the Department of Neonatology, Guangzhou Women and Children’s Medical Center, Guangzhou, China from January 2007 to December 2014 and performed a review of the relevant literature. Results Fourteen boys and six girls presented with hypotonia, poor responsiveness, feeding difficulty, and infrequent, weak crying. Different from western patients, the 20 Asian patients exhibited at least five of the following typical features: prominent forehead, narrow face, almond-shaped eyes, small mouth, downturned mouth, thin upper lip, and micromandible. All 14 boys had a small scrotum, including nine with cryptorchidism. Diagnoses were made with microarray comparative genomic hybridization. All 20 infants required feeding tubes. Fifteen received swallowing training immediately after admission; the period of continuous tube feeding for these patients ranged from 8 to 22 days (mean, 14 ± 5.3 days). For the five patients who did not receive swallowing training, the period of continuous tube feeding ranged from 15 to 35 days (mean, 18 ± 4.3 days). Comprehensive care measures included: giving parents detailed health education and basic information about this disease, teaching skills to promote feeding and prevent suffocation, increasing children’s passive activity, providing nutrition management for normal development, and preventing excessive or inadequate nutrient intake. Conclusions Neonates with Prader–Willi syndrome in Asia have hypotonia, poor responsiveness, feeding difficulty, infrequent and weak crying, genital hypoplasia, and characteristic facial features. Recognition of the syndrome in neonates with confirmation by genetic testing is essential, because early diagnosis allows early intervention. Treatment measures including swallowing training can improve prognosis, prevent growth retardation and obesity, and elevate quality of life in individuals with Prader–Willi syndrome.
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Affiliation(s)
- Ping Wang
- The First Affiliated Hospital of Jinan University, No 613, Huangpuda Road, Guangzhou, Guangdong, 510623, China.,Department of Neonatology, Guangzhou Women and Children's Medical Center, No 9, Jinsui Road, Guangzhou, Guangdong, 510623, China
| | - Wei Zhou
- Department of Neonatology, Guangzhou Women and Children's Medical Center, No 9, Jinsui Road, Guangzhou, Guangdong, 510623, China.
| | - Weiming Yuan
- Department of Neonatology, Guangzhou Women and Children's Medical Center, No 9, Jinsui Road, Guangzhou, Guangdong, 510623, China
| | - Longguang Huang
- Department of Neonatology, Guangzhou Women and Children's Medical Center, No 9, Jinsui Road, Guangzhou, Guangdong, 510623, China
| | - Ning Zhao
- Department of Neonatology, Guangzhou Women and Children's Medical Center, No 9, Jinsui Road, Guangzhou, Guangdong, 510623, China
| | - Xiaowen Chen
- Department of Neonatology, Guangzhou Women and Children's Medical Center, No 9, Jinsui Road, Guangzhou, Guangdong, 510623, China
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Bakker NE, Siemensma EPC, Koopman C, Hokken-Koelega ACS. Dietary Energy Intake, Body Composition and Resting Energy Expenditure in Prepubertal Children with Prader-Willi Syndrome before and during Growth Hormone Treatment: A Randomized Controlled Trial. Horm Res Paediatr 2016; 83:321-31. [PMID: 25764996 DOI: 10.1159/000374113] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 01/07/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Dietary management is a difficult but key aspect of care in children with Prader-Willi syndrome (PWS). We therefore investigated the effect of growth hormone (GH) treatment on reported energy intake in children with PWS, in relation with body composition, resting energy expenditure (REE) and hormone levels. METHODS In a randomized controlled GH trial including 47 children with PWS, we assessed 5-day dietary records and dual-energy X-ray absorptiometry for body composition. REE was calculated by Müller's equation, based on fat mass, fat free mass and gender. RESULTS Baseline energy intake of children with PWS was lower than normal daily energy requirements (p < 0.001), and decreased with age to 50% in prepubertal children. Energy intake in infants [m/f: 11/8; median (interquartile range [IQR]) age 2.7 years (1.5-3.2)] increased after 1 year of GH treatment (p = 0.008); this tended to be higher in the GH group than in the untreated group (p = 0.07). In prepubertal children [m/f: 14/14; median (IQR) age 6.8 years (5.1-8.1)], the increase in energy intake was higher in the GH group, but this was not different compared to the untreated group. REE was not different between the GH group and the untreated group. Increase in energy intake during 2 years of GH treatment was correlated with lower fat percentage standard deviation scores (p = 0.037) and higher adiponectin levels (p = 0.007). CONCLUSION Our study demonstrates that parents of children with PWS are very well capable of restricting energy intake up to 50% compared to daily energy requirements for age- and sex-matched healthy children. GH treatment was associated with a slight increase in energy intake, but also improved body composition and adiponectin levels, which suggests a protective effect of GH treatment.
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Affiliation(s)
- N E Bakker
- Dutch Growth Research Foundation/Erasmus Medical Center-Sophia Children's Hospital, Rotterdam, the Netherlands
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van Ginkel S, Amami M, Dela F, Niederseer D, Narici MV, Niebauer J, Scheiber P, Müller E, Flück M. Adjustments of muscle capillarity but not mitochondrial protein with skiing in the elderly. Scand J Med Sci Sports 2014; 25:e360-7. [PMID: 25262765 DOI: 10.1111/sms.12324] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/14/2014] [Indexed: 11/28/2022]
Abstract
Downhill skiing in the elderly increases maximal oxygen uptake (VO2max) and carbohydrate handling, and produces muscle hypertrophy. We hypothesized that adjustments of the cellular components of aerobic glucose combustion in knee extensor muscle, and cardiovascular adjustments, would increase in proportion to VO2max. Nineteen healthy elderly subjects (age 67.5 ± 2.9 years) who completed 28.5 days of guided downhill skiing over 3 months were assessed for anthropometric variables, cardiovascular parameters (heart rate, hematocrit), VO2max, and compared with controls (n = 20). Biopsies of vastus lateralis muscle were analyzed for capillary density and expression of respiratory chain markers (NDUFA9, SDHA, UQCRC1, ATP5A1) and the glucose transporter GLUT4. Statistical significance was assessed with a repeated analysis of variance and Fisher's post-hoc test at a P value of 5%. VO2max increased selectively with ski training (+7 ± 2%). Capillary density (+11 ± 5%) and capillary-to-fiber ratio (12 ± 5%), but not the concentration of metabolic proteins, in vastus lateralis were increased after skiing. Cardiovascular parameters did not change. Fold changes in VO2max and capillary-to-fiber ratio were correlated and were under genetic control by polymorphisms of the regulator of vascular tone, angiotensin converting enzyme. The observations indicate that increased VO2max after recreational downhill ski training is associated with improved capillarity in a mainly recruited muscle group.
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Affiliation(s)
- S van Ginkel
- The Institute for Biomedical Research into Human Movement and Health (IRM), Manchester Metropolitan University, Manchester, UK.,MOVE Research Institute Amsterdam, Faculty of Human Movement Sciences, VU University Amsterdam, Amsterdam, The Netherlands
| | - M Amami
- The Institute for Biomedical Research into Human Movement and Health (IRM), Manchester Metropolitan University, Manchester, UK
| | - F Dela
- Xlab, Department of Biomedical Sciences, Center for Healthy Aging, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - D Niederseer
- University Institute of Sports Medicine, Prevention and Rehabilitation, Paracelsus Medical University, Salzburg, Austria
| | - M V Narici
- The Institute for Biomedical Research into Human Movement and Health (IRM), Manchester Metropolitan University, Manchester, UK.,School of Graduate Entry Medicine and Health, Derby Royal Hospital, University of Nottingham, Derby, UK
| | - J Niebauer
- University Institute of Sports Medicine, Prevention and Rehabilitation, Paracelsus Medical University, Salzburg, Austria
| | - P Scheiber
- Department of Sport Science and Kinesiology, University of Salzburg, Salzburg, Austria
| | - E Müller
- Department of Sport Science and Kinesiology, University of Salzburg, Salzburg, Austria
| | - M Flück
- The Institute for Biomedical Research into Human Movement and Health (IRM), Manchester Metropolitan University, Manchester, UK.,Department of Orthopaedics, University Hospital Balgrist, University of Zurich, Zurich, Switzerland
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Busso T, Flück M. A mixed-effects model of the dynamic response of muscle gene transcript expression to endurance exercise. Eur J Appl Physiol 2012. [PMID: 23179205 DOI: 10.1007/s00421-012-2547-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Altered expression of a broad range of gene transcripts after exercise reflects the specific adjustment of skeletal muscle makeup to endurance training. Towards a quantitative understanding of this molecular regulation, we aimed to build a mixed-effects model of the dynamics of co-related transcript responses to exercise. It was built on the assumption that transcript levels after exercise varied because of changes in the balance between transcript synthesis and degradation. It was applied to microarray data of 231 gene transcripts in vastus lateralis muscle of six subjects 1, 8 and 24 h after endurance exercise and 6-week training on a stationary bicycle. Cluster analysis was used to select groups of transcripts having highest co-correlation of their expression (r > 0.70): Group 1 comprised 45 transcripts including factors defining the oxidative and contractile phenotype and Group 2 included 39 transcripts mainly defined by factors found at the cell periphery and the extracellular space. Data from six subjects were pooled to filter experimental noise. The model fitted satisfactorily the responses of Group 1 (r (2) = 0.62 before and 0.85 after training, P < 0.001) and Group 2 (r (2) = 0.75 and 0.79, P < 0.001). Predicted variation in transcription rate induced by exercise yielded a difference in amplitude and time-to-peak response of gene transcripts between the two groups before training and with training in Group 2. The findings illustrate that a mixed-effects model of transcript responses to exercise is suitable to explore the regulation of muscle plasticity by training at the transcriptional level and indicate critical experiments needed to consolidate model parameters empirically.
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Affiliation(s)
- Thierry Busso
- Laboratoire de Physiologie de l'Exercice, Université de Lyon, Saint-Etienne, France.
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