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Cardoso ELDS, Cahuê F, Miranda IEF, Sant'Anna MDL, Andrade CBV, Barbosa RAQ, Ortiga-Carvalho TM, Vaisman M, Salerno VP. Combined effects of intermittent fasting with swimming-based high intensity intermittent exercise training in Wistar rats. Tissue Cell 2023; 82:102099. [PMID: 37141748 DOI: 10.1016/j.tice.2023.102099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 04/25/2023] [Accepted: 04/25/2023] [Indexed: 05/06/2023]
Abstract
High caloric intake and physical inactivity are known precursors to the development of several chronic metabolic diseases. For obesity and sedentarism, High Intensity Intermittent Exercise (HIIE) and Intermittent Fasting (IF) have emerged as individual strategies to attenuate their negative effects by improving metabolism. To study their combined effects, Wistar male rats (n = 74, 60 days old) were divided into four groups: Sedentary Control (C), swimming-based HIIE only (HIIE), Intermittent Fasting only (IF), and swimming-based HIIE associated with Intermittent Fasting (HIIE/IF). Over an eight-week period swimming performance, body composition, weight and feeding behavior were analyzed. The final morphology of white adipose tissue showed a significant reduction in adipocyte size consistent with a higher number of cells per area in exercised animals (vs C and IF, p < 0.05), which also displayed characteristics of browning through UCP-1 levels and CD31 staining. These results suggest that the increased performance in the HIIE/IF group is, in part, by modifications of WAT metabolism through the browning process.
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Affiliation(s)
- Everton Luis Dos Santos Cardoso
- Departamento de Biociência do Exercício, Escola de Educação Física e Desporto, Universidade Federal do Rio de Janeiro, (EEFD)/UFRJ, Brazil; Departamento de Endocrinologia Médica, Hospital Universitário Clementino Fraga Filho/(HUCFF)/UFRJ, Brazil
| | - Fábio Cahuê
- Departamento de Biociência do Exercício, Escola de Educação Física e Desporto, Universidade Federal do Rio de Janeiro, (EEFD)/UFRJ, Brazil; Instituto de Nutrição Josué de Castro, UFRJ, Brazil
| | - Iordan Emanuel Ferreira Miranda
- Departamento de Biociência do Exercício, Escola de Educação Física e Desporto, Universidade Federal do Rio de Janeiro, (EEFD)/UFRJ, Brazil; Instituto de Biofísica Carlos Chagas Filho, (IBCCF)/UFRJ, Brazil
| | | | - Cherley Borba Vieira Andrade
- Instituto de Biofísica Carlos Chagas Filho, (IBCCF)/UFRJ, Brazil; Departamento de Histologia e Embriologia, Universidade Estadual do Rio de Janeiro, (IBRAG)/UERJ, Brazil
| | - Raiana Andrade Quintanilha Barbosa
- Instituto de Biofísica Carlos Chagas Filho, (IBCCF)/UFRJ, Brazil; Centro de Tecnologia Celular, Instituto Nacional de Cardiologia, RJ, Brazil
| | | | - Mário Vaisman
- Departamento de Endocrinologia Médica, Hospital Universitário Clementino Fraga Filho/(HUCFF)/UFRJ, Brazil
| | - Verônica Pinto Salerno
- Departamento de Biociência do Exercício, Escola de Educação Física e Desporto, Universidade Federal do Rio de Janeiro, (EEFD)/UFRJ, Brazil.
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Manukhina EB, Tseilikman VE, Komelkova MV, Lapshin MS, Goryacheva AV, Kondashevskaya MV, Mkhitarov VA, Lazuko SS, Tseilikman OB, Sarapultsev AP, Dmitrieva YA, Strizhikov VK, Kuzhel OP, Downey HF. Сardiac injury in rats with experimental posttraumatic stress disorder and mechanisms of its limitation in experimental posttraumatic stress disorder-resistant rats. J Appl Physiol (1985) 2021; 130:759-771. [PMID: 33411642 DOI: 10.1152/japplphysiol.00694.2019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Traumatic stress causes posttraumatic stress disorder (PTSD). PTSD is associated with cardiovascular diseases and risk of sudden cardiac death in some subjects. We compared effects of predator stress (PS, cat urine scent, 10 days) on mechanisms of cardiac injury and protection in experimental PTSD-vulnerable (PTSD) and -resistant (PTSDr) rats. Fourteen days post-stress, rats were evaluated with an elevated plus-maze test, and assigned to PTSD and PTSDr groups according to an anxiety index calculated from the test results. Cardiac injury was evaluated by: 1) exercise tolerance; 2) ECG; 3) myocardial histomorphology; 4) oxidative stress; 5) pro- and anti-inflammatory cytokines. Myocardial heat shock protein 70 (HSP70) was also measured. Experimental PTSD developed in 40% of rats exposed to PS. Exercise tolerance of PTSD rats was 25% less than control rats and 21% less than PTSDr rats. ECG QRS, QT, and OTc intervals were significantly longer in PTSD rats than in control and PTSDr rats. Only cardiomyocytes of PTSD rats had histomorphological signs of metabolic and hypoxic injury and impaired contractility. Oxidative stress markers were higher in PTSD than in PTSDr rats. Pro-inflammatory IL-6 was higher in PTSD rats than in control and PTSDr rats, and anti-inflammatory IL-4 was lower in PTSD than in control and PTSDr rats. Myocardial HSP70 was lower in PTSD rats than in PTSDr and control rats. Our conclusion was that rats with PTSD developed multiple signs of cardiac injury. PTSDr rats were resistant also to cardiac injury. Factors that limit cardiac damage in PS rats include reduced inflammation and oxidative stress and increased protective HSP70.NEW & NOTEWORTHY For the first time, rats exposed to stress were segregated into experimental PTSD (ePTSD)-susceptible and ePTSD-resistant rats. Cardiac injury, ECG changes, and impaired exercise tolerance were more pronounced in ePTSD-susceptible rats. Resistance to ePTSD was associated with decreased inflammation and oxidative stress and with increased protective heat shock protein 70. Results may help identify individuals at high risk of PTSD and also provide a foundation for developing preventive and therapeutic means to restrict PTSD-associated cardiac morbidity.
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Affiliation(s)
- Eugenia B Manukhina
- School of Medical Biology, South Ural State University, Chelyabinsk, Russian Federation.,Laboratory for Regulatory Mechanisms of Stress and Adaptation, Institute of General Pathology and Pathophysiology, Moscow, Russian Federation.,Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas
| | - Vadim E Tseilikman
- School of Medical Biology, South Ural State University, Chelyabinsk, Russian Federation
| | - Maria V Komelkova
- School of Medical Biology, South Ural State University, Chelyabinsk, Russian Federation
| | - Maxim S Lapshin
- School of Medical Biology, South Ural State University, Chelyabinsk, Russian Federation
| | - Anna V Goryacheva
- Laboratory for Regulatory Mechanisms of Stress and Adaptation, Institute of General Pathology and Pathophysiology, Moscow, Russian Federation
| | - Marina V Kondashevskaya
- Laboratory for Immunomorphology of Inflammation, Research Institute of Human Morphology, Moscow, Russian Federation
| | - Vladimir A Mkhitarov
- Laboratory for Immunomorphology of Inflammation, Research Institute of Human Morphology, Moscow, Russian Federation
| | - Svetlana S Lazuko
- Department of Normal Physiology, Vitebsk State Medical University, Vitebsk, Republic of Belarus
| | - Olga B Tseilikman
- School of Medical Biology, South Ural State University, Chelyabinsk, Russian Federation.,School of Basic Medicine, Chelyabinsk State University, Chelyabinsk, Russian Federation
| | - Alexey P Sarapultsev
- School of Medical Biology, South Ural State University, Chelyabinsk, Russian Federation.,Laboratory of Immunopathophysiology, Institute of Immunology and Physiology of RAS, Ekaterinburg, Russian Federation
| | - Yulia A Dmitrieva
- School of Medical Biology, South Ural State University, Chelyabinsk, Russian Federation
| | - Viktor K Strizhikov
- Department of Morphology and Histology, South Ural State Agricultural University, Troitsk, Russian Federation
| | - Olga P Kuzhel
- Department of Normal Physiology, Vitebsk State Medical University, Vitebsk, Republic of Belarus
| | - H Fred Downey
- School of Medical Biology, South Ural State University, Chelyabinsk, Russian Federation.,Department of Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth, Texas
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Neto JGO, Bento-Bernardes T, Pazos-Moura CC, Oliveira KJ. Maternal cinnamon intake during lactation led to visceral obesity and hepatic metabolic dysfunction in the adult male offspring. Endocrine 2019; 63:520-530. [PMID: 30276593 DOI: 10.1007/s12020-018-1775-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 09/24/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE Studies with foods, known to promote health benefits in addition to the nutritive value, show that their consumption by pregnant and/or lactating females could induce negative outcomes to the offspring. It is well characterized that cinnamon intake promotes benefits to energy homeostasis. The present study aimed to analyze the effects of the consumption of an aqueous extract of cinnamon by lactating female rats on the endocrine-metabolic outcomes in the adult offspring. METHODS Lactating dams (Wistar rats) were supplemented with cinnamon aqueous extract (400 mg/kg body weight/day) for the entire lactating period. The male adult offspring were evaluated at 180 days old (CinLac). RESULTS The offspring presented visceral obesity (P = 0.001), hyperleptinemia (P = 0.002), and hyperinsulinemia (P = 0.016). In the liver, CinLac exhibited reduced p-IRβ (P = 0.018) suggesting insulin resistance. However, phosphorylation of IRS1 (P = 0.041) and AKT (P = 0.050) were increased. JAK2 (P = 0.030) and p-STAT3 (P = 0.015) expressions were higher, suggesting that the activation of IRS1/AKT in the CinLac group could have resulted from the increased activation of leptin signaling. Although we observed no changes in the gluconeogenic pathway, the CinLac group exhibited lower hepatic glycogen content (P = 0.005) accompanied by increased p-GSK3β (P = 0.011). In addition, the CinLac group showed increased hepatic triacylglycerol content (P = 0.049) and a mild steatosis (P = 0.001), accompanied by reduced PPARα mRNA expression (P = 0.005). CONCLUSION We conclude that maternal intake of aqueous extract of cinnamon induces long-term molecular, metabolic, and hormonal changes in the adult progeny, including visceral obesity, higher lipid accumulation, and lower glycogen content in the liver.
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Affiliation(s)
| | - Thais Bento-Bernardes
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21949-900, RJ, Brazil
| | - Carmen Cabanelas Pazos-Moura
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21949-900, RJ, Brazil
| | - Karen Jesus Oliveira
- Departamento de Fisiologia e Farmacologia, Universidade Federal Fluminense, Niterói, 24210-130, RJ, Brazil.
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Brito-Filho SBD, Moura EGD, Santos OJD, Sauaia-Filho EN, Amorim E, Santana EEC, Barros-Filho AKD, Santos RAP. EFFECT OF CHRONIC INGESTION OF WINE ON THE GLYCEMIC, LIPID AND BODY WEIGHT HOMEOSTASIS IN MICE. ABCD-ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA 2016; 29:146-150. [PMID: 27759775 PMCID: PMC5074663 DOI: 10.1590/0102-6720201600030005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 05/24/2016] [Indexed: 11/21/2022]
Abstract
Background The health benefits associated with moderate wine consumption, as with ethanol and phenolic compounds, include different mechanisms still little understandable. Aim Evaluate glycemic and weight variations, and the deposit of triglycerides, cholesterol and liver glycogen with red wine consumption. Methods 60 ApoE knockout mice were divided into three groups of 20: Wine Group (WG), Ethanol Group (EG) and Water Group (WAG). They received daily: WG 50 ml of wine and 50 ml water; EG 6 ml ethanol and WAG 94 ml of water. All groups were followed for four months. The food intake was monitored daily, in the period from eight to ten hours and held every five days. The measurement of water intake was also made every five days. The weighing of the animals took place every ten days. Results The WG had higher weight increase as compared to the other groups. The concentration of hepatic triglyceride was higher in WG (57%) and the EG group was lower (31.6%, p<0.01) than the control. The concentration of cholesterol was lower in the WG (23.6%), as well as EG (24.5%, p<0.05). The concentration of glycogen was higher in WG (16%) and fasting blood glucose was higher in EG compared to the other groups but not both demonstrated a statistically significant difference. Conclusion The WG increased triglyceride and WAG decreased cholesterol. The triglyceride may be increased due to the high caloric value of wine or some unknown property that led to significant increase in subcutaneous andretroperitoneal fat in mice.
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Affiliation(s)
- Sebastião Barreto de Brito-Filho
- Academic League in Experimental Surgery Laboratory, School of Medicine, Federal University of Maranhão and State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Egberto Gaspar de Moura
- Academic League in Experimental Surgery Laboratory, School of Medicine, Federal University of Maranhão and State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Orlando José Dos Santos
- Academic League in Experimental Surgery Laboratory, School of Medicine, Federal University of Maranhão and State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Euler Nicolau Sauaia-Filho
- Academic League in Experimental Surgery Laboratory, School of Medicine, Federal University of Maranhão and State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Elias Amorim
- Academic League in Experimental Surgery Laboratory, School of Medicine, Federal University of Maranhão and State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Ewaldo Eder Carvalho Santana
- Academic League in Experimental Surgery Laboratory, School of Medicine, Federal University of Maranhão and State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Allan Kardec Dualibe Barros-Filho
- Academic League in Experimental Surgery Laboratory, School of Medicine, Federal University of Maranhão and State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Rennan Abud Pinheiro Santos
- Academic League in Experimental Surgery Laboratory, School of Medicine, Federal University of Maranhão and State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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5
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Maternal flaxseed diet during lactation changes adrenal function in adult male rat offspring. Br J Nutr 2015; 114:1046-53. [DOI: 10.1017/s0007114515002184] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Flaxseed (Linum usitatissimum L.) has been a focus of interest in the field of functional foods because of its potential health benefits. However, we hypothesised that maternal flaxseed intake during lactation could induce several metabolic dysfunctions in adult offspring. In the present study, we aimed to characterise the adrenal function of adult offspring whose dams were supplemented with whole flaxseed during lactation. At birth, lactating Wistar rats were divided into two groups: rats from dams fed the flaxseed diet (FLAX) with 25 % of flaxseed and controls dams. Pups received standard diet after weaning and male offspring were killed at age 180 days old to collect blood and tissues. We evaluated body weight and food intake during development, corticosteronaemia, adrenal catecholamine content, hepatic cholesterol, TAG and glycogen contents, and the protein expression of corticotropin-releasing hormone (CRH), adrenocorticotropic hormone (ACTH), 11-β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) and adrenaline β2 receptor at postnatal day 180 (PN180). After weaning, pups from the FLAX group had a higher body weight (+10 %) and food intake (+10 %). At PN180, the FLAX offspring exhibited higher serum corticosterone (+48 %) and lower adrenal catecholamine ( − 23 %) contents, lower glycogen ( − 30 %), higher cholesterol (4-fold increase) and TAG (3-fold-increase) contents in the liver, and higher 11β-HSD1 (+62 %) protein expression. Although the protein expression of hypothalamic CRH was unaffected, the FLAX offspring had lower protein expression of pituitary ACTH ( − 34 %). Therefore, induction of hypercorticosteronaemia by dietary flaxseed during lactation may be due to an increased hepatic activation of 11β-HSD1 and suppression of ACTH. The changes in the liver fat content of the FLAX group are suggestive of steatosis, in which hypercorticosteronaemia may play an important role. Thus, it is recommended that lactating women restrict the intake of flaxseed during lactation.
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Gonçalves A, Tolentino CC, Souza FRD, Huss JCDC, Zinato KDL, Lopes LTP, Furlanetto Júnior R, Neves FDAR. The thyroid hormone receptor β-selective agonist GC-1 does not affect tolerance to exercise in hypothyroid rats. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2015; 59:141-7. [DOI: 10.1590/2359-3997000000027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 10/20/2014] [Indexed: 11/22/2022]
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Yu D, Zhou H, Yang Y, Jiang Y, Wang T, Lv L, Zhou Q, Yang Y, Dong X, He J, Huang X, Chen J, Wu K, Xu L, Mao R. The bidirectional effects of hypothyroidism and hyperthyroidism on anxiety- and depression-like behaviors in rats. Horm Behav 2015; 69:106-15. [PMID: 25623236 DOI: 10.1016/j.yhbeh.2015.01.003] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 12/24/2014] [Accepted: 01/16/2015] [Indexed: 12/11/2022]
Abstract
Thyroid hormone disorders have long been linked to depression, but the causal relationship between them remains controversial. To address this question, we established rat models of hypothyroidism using (131)iodine ((131)I) and hyperthyroidism using levothyroxine (LT4). Serum free thyroxine (FT4) and triiodothyronine (FT3) significantly decreased in the hypothyroid of rats with single injections of (131)I (5mCi/kg). These rats exhibited decreased depression-like behaviors in forced swimming test and sucrose preference tests, as well as decreased anxiety-like behaviors in an elevated plus maze. Diminished levels of brain serotonin (5-HT) and increased levels of hippocampal brain-derived neurotrophic factor (BDNF) were found in the hypothyroid rats compared to the control saline-vehicle administered rats. LT4 treatment reversed the decrease in thyroid hormones and depression-like behaviors. In contrast, hyperthyroidism induced by weekly injections of LT4 (15μg/kg) caused a greater than 10-fold increase in serum FT4 and FT3 levels. The hyperthyroid rats exhibited higher anxiety- and depression-like behaviors, higher brain 5-HT level, and lower hippocampal BDNF levels than the controls. Treatment with the antidepressant imipramine (15mg/kg) diminished serum FT4 levels as well as anxiety- and depression-like behaviors in the hyperthyroid rats but led to a further increase in brain 5-HT levels, compared with the controls or the hypothyroid rats. Together, our results suggest that hypothyroidism and hyperthyroidism have bidirectional effects on anxiety- and depression-like behaviors in rats, possibly by modulating hippocampal BDNF levels.
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Affiliation(s)
- Dafu Yu
- School of Life Sciences, Yunnan University, Kunming 650091, China; Key Laboratory of Animal Models and Human Disease Mechanisms, and KIZ/CUHK Joint Laboratory of Bioresources and Molecular Research in Common Disease, and Laboratory of Learning and Memory, Kunming Institute of Zoology, Chinese Academy of Science, Kunming 650223, China; Department of Nuclear Medicine, First People's Hospital of Yunnan Province, and Key Laboratory of Medical Imaging, Medical Faculty, Kunming University of Science and Technology, Kunming 650032, China
| | - Heng Zhou
- School of Life Sciences, University of Science and Technology of China, Hefei, 230026, China; Key Laboratory of Animal Models and Human Disease Mechanisms, and KIZ/CUHK Joint Laboratory of Bioresources and Molecular Research in Common Disease, and Laboratory of Learning and Memory, Kunming Institute of Zoology, Chinese Academy of Science, Kunming 650223, China
| | - Yuan Yang
- School of Life Sciences, Yunnan University, Kunming 650091, China; Key Laboratory of Animal Models and Human Disease Mechanisms, and KIZ/CUHK Joint Laboratory of Bioresources and Molecular Research in Common Disease, and Laboratory of Learning and Memory, Kunming Institute of Zoology, Chinese Academy of Science, Kunming 650223, China; Physiological Department, Kunming Medical University, Kunming 650500, China
| | - Yong Jiang
- Department of Nuclear Medicine, First People's Hospital of Yunnan Province, and Key Laboratory of Medical Imaging, Medical Faculty, Kunming University of Science and Technology, Kunming 650032, China
| | - Tianchao Wang
- Department of Nuclear Medicine, First People's Hospital of Yunnan Province, and Key Laboratory of Medical Imaging, Medical Faculty, Kunming University of Science and Technology, Kunming 650032, China
| | - Liang Lv
- Department of Nuclear Medicine, First People's Hospital of Yunnan Province, and Key Laboratory of Medical Imaging, Medical Faculty, Kunming University of Science and Technology, Kunming 650032, China
| | - Qixin Zhou
- Key Laboratory of Animal Models and Human Disease Mechanisms, and KIZ/CUHK Joint Laboratory of Bioresources and Molecular Research in Common Disease, and Laboratory of Learning and Memory, Kunming Institute of Zoology, Chinese Academy of Science, Kunming 650223, China
| | - Yuexiong Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms, and KIZ/CUHK Joint Laboratory of Bioresources and Molecular Research in Common Disease, and Laboratory of Learning and Memory, Kunming Institute of Zoology, Chinese Academy of Science, Kunming 650223, China
| | - Xuexian Dong
- Department of Nuclear Medicine, First People's Hospital of Yunnan Province, and Key Laboratory of Medical Imaging, Medical Faculty, Kunming University of Science and Technology, Kunming 650032, China
| | - Jianfeng He
- Department of Nuclear Medicine, First People's Hospital of Yunnan Province, and Key Laboratory of Medical Imaging, Medical Faculty, Kunming University of Science and Technology, Kunming 650032, China
| | - Xiaoyan Huang
- State Key Laboratory of Phytochemistry and Plant Resources in Southwest China, and Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, China
| | - Jijun Chen
- State Key Laboratory of Phytochemistry and Plant Resources in Southwest China, and Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, China
| | - Kunhua Wu
- Department of Nuclear Medicine, First People's Hospital of Yunnan Province, and Key Laboratory of Medical Imaging, Medical Faculty, Kunming University of Science and Technology, Kunming 650032, China
| | - Lin Xu
- School of Life Sciences, Yunnan University, Kunming 650091, China; School of Life Sciences, University of Science and Technology of China, Hefei, 230026, China; Key Laboratory of Animal Models and Human Disease Mechanisms, and KIZ/CUHK Joint Laboratory of Bioresources and Molecular Research in Common Disease, and Laboratory of Learning and Memory, Kunming Institute of Zoology, Chinese Academy of Science, Kunming 650223, China.
| | - Rongrong Mao
- Key Laboratory of Animal Models and Human Disease Mechanisms, and KIZ/CUHK Joint Laboratory of Bioresources and Molecular Research in Common Disease, and Laboratory of Learning and Memory, Kunming Institute of Zoology, Chinese Academy of Science, Kunming 650223, China.
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Uribe RM, Jaimes-Hoy L, Ramírez-Martínez C, García-Vázquez A, Romero F, Cisneros M, Cote-Vélez A, Charli JL, Joseph-Bravo P. Voluntary exercise adapts the hypothalamus-pituitary-thyroid axis in male rats. Endocrinology 2014; 155:2020-30. [PMID: 24605825 DOI: 10.1210/en.2013-1724] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The hypothalamic-pituitary thyroid (HPT) axis modulates energy homeostasis. Its activity decreases in conditions of negative energy balance but the effects of chronic exercise on the axis are controversial and unknown at hypothalamic level. Wistar male rats were exposed for up to 14 days to voluntary wheel running (WR), or pair-feeding (PF; 18% food restriction), or to repeated restraint (RR), a mild stressor. WR and RR diminished food intake; body weight gain decreased in the 3 experimental groups, but WAT mass and serum leptin more intensely in the WR group. WR, but not RR, produced a delayed inhibition of central markers of HPT axis activity. At day 14, in WR rats paraventricular nucleus-pro-TRH mRNA and serum TSH levels decreased, anterior pituitary TRH-receptor 1 mRNA levels increased, but serum thyroid hormone levels were unaltered, which is consistent with decreased secretion of TRH and clearance of thyroid hormones. A similar pattern was observed if WR animals were euthanized during their activity phase. In contrast, in PF animals the profound drop of HPT axis activity included decreased serum T3 levels and hepatic deiodinase 1 activity; these changes were correlated with an intense increase in serum corticosterone levels. WR effects on HPT axis were not associated with changes in the activity of the hypothalamic-pituitary adrenal axis, but correlated positively with serum leptin levels. These data demonstrate that voluntary WR adapts the status of the HPT axis, through pathways that are distinct from those observed during food restriction or repeated stress.
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Affiliation(s)
- Rosa María Uribe
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca Morelos, México
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Frankenfeld SP, de Oliveira LP, Ignacio DL, Coelho RG, Mattos MN, Ferreira ACF, Carvalho DP, Fortunato RS. Nandrolone decanoate inhibits gluconeogenesis and decreases fasting glucose in Wistar male rats. J Endocrinol 2014; 220:143-53. [PMID: 24403377 DOI: 10.1530/joe-13-0259] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The use of anabolic-androgenic steroids to improve physical performance or appearance has increased notably. The doses used are 10- to 100- fold higher than the therapeutic dose (TD), and this abuse can cause several side effects. Glucose metabolism is significantly affected by anabolic-androgenic steroid abuse, but studies about glycemic regulation during fasting are scarce. There are some evidences showing that testosterone can antagonize glucocorticoids action, which are crucial to glucose production during fasting. Thus, the aim of this study was to determine the impact of supraphysiological doses (SDs) of nandrolone decanoate (DECA) on rat glucose metabolism during fasting. Male Wistar rats were treated with i.m. injections of vehicle, a low TD (0.016 mg/100 g b.w.-TD group) or a high SD (1 mg/100 g b.w.-SD group) of DECA, once a week for 8 weeks. After 12 h fasting, we evaluated glucose and pyruvate tolerance tests, liver glycogen content, serum levels of gluconeogenic substrates, insulin and corticosterone, glucose uptake and hexokinase (HK) activity in skeletal muscle, and the adrenal catecholamine content. SD group had increased serum insulin levels and a blunted response to insulin regarding glucose uptake in skeletal muscle. Fasting serum glucose decreased significantly in SD group, as well as the pyruvate tolerance test and liver glycogen content. Moreover, serum levels of glycerol were increased in SD group. Our data indicate that SDs of DECA exert effects on different regulatory points of glucose metabolism, resulting in defective gluconeogenesis and decreased skeletal muscle glucose uptake in response to insulin.
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Affiliation(s)
- Stephan Pinheiro Frankenfeld
- Laboratory of Molecular Radiobiology, Institute of Biophysics Carlos Chagas Filho, UFRJ, CCS Laboratory of Endocrine Physiology, Institute of Biophysics Carlos Chagas Filho Laboratory of Exercise Biology, School of Physical Education and Sports Laboratory of Bioenergetics, Institute of Medical Biochemistry, Federal University of Rio de Janeiro, Avenida Carlos Chagas Filho, 373, Block G - Underground - Room G0-031, 21941-902 Rio de Janeiro, RJ, Brazil
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Boaventura G, Casimiro-Lopes G, Pazos-Moura CC, Oliveira E, Lisboa PC, Moura EG. Effects of running wheel training on adult obese rats programmed by maternal prolactin inhibition. J Endocrinol 2013; 219:29-37. [PMID: 23863192 DOI: 10.1530/joe-13-0102] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The inhibition of maternal prolactin production in late lactation leads to metabolic syndrome and hypothyroidism in adult offspring. Physical training is a therapeutic strategy that could prevent or reverse this condition. We evaluated the effects of a short-duration low-intensity running wheel training program on the metabolic and hormonal alterations in rats. Lactating Wistar rats were treated with bromocriptine (Bro, 1 mg twice a day) or saline on days 19, 20, and 21 of lactation, and the training of offspring began at 35 days of age. Offspring were divided into sedentary and trained controls (C-Sed and C-Ex) and sedentary and trained Bro-treated rats (Bro-Sed and Bro-Ex). Chronic exercise delayed the onset of weight gain in Bro-Ex offspring, and the food intake did not change during the experimental period. At 180 days, visceral fat mass was higher (+46%) in the Bro-Sed offspring than in C-Sed and Bro-Ex rats. As expected, running capacity was higher in trained animals. Most parameters observed in the Bro-Sed offspring were consistent with hypothyroidism and metabolic syndrome and were reversed in the Bro-Ex group. Chronic exercise did not influence the muscle glycogen in the C-Ex group; however, liver glycogen was higher (+30%) in C-Ex group and was unchanged in both Bro offspring groups. Bro-Ex animals had higher plasma lactate dehydrogenase levels, indicating skeletal muscle damage and intolerance of the training program. Low-intensity chronic training is able to normalize many clinical aspects in Bro animals; however, these animals might have had a lower threshold for exercise adaptation than the control rats.
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Affiliation(s)
- G Boaventura
- Departamento de Ciências Fisiológicas, 5° Andar, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Avenida 28 de Setembro, 87, Rio de Janeiro 20551-030, Brazil
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Ribeiro LFP, Teixeira IP, Aparecido da Silva G, Dalia RA, Júnior MC, Bertolini NO, Rostom de Mello MA, Luciano E. Effects of swimming training on tissue glycogen content in experimental thyrotoxic rats. Can J Physiol Pharmacol 2012; 90:587-93. [DOI: 10.1139/y2012-044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Thyrotoxicosis, a condition in which there is an excessive amount of circulating thyroid hormones, leads to reduced glycogen content in different tissues. In this study we analyzed the effects of aerobic swimming training on liver, heart, and skeletal muscle glycogen content in experimentally induced thyrotoxicosis. Wistar male rats were divided into euthyroid sedentary (ES, n = 12), euthyroid trained (ET, n = 11), thyrotoxic sedentary (TS, n = 12), and thyrotoxic trained (TT, n = 10) groups. Thyrotoxic groups received daily i.p. doses of T4 (sodium levothyroxine, 25 µg/100 g body mass) through the experimental period, and trained groups swam for 1 h at 80% of the aerobic–anaerobic transition intensity, 5 days/week for 4 weeks. Heart and liver glycogen stores were ∼30% lower in T4 treated compared with nontreated groups, but were not changed by training status. On the other hand, glycogen content in mixed fiber type gastrocnemius of TT was 1.5- to 2.3-fold greater than those in other groups, whereas no significant differences were found for the slow soleus muscle. Increased gastrocnemius but not soleus, liver, or heart glycogen indicates that in mild long-term thyrotoxicosis chronic swimming affects glycogen stores in a tissue-specific manner.
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Affiliation(s)
- Luiz Fernando Paulino Ribeiro
- Departamento de Ciências da Saúde, Universidade Estadual de Santa Cruz, Ilhéus-Itabuna, Bahia 45662-900, Brazil
- Departamento de Educação Física, Instituto de Biociências, Universidade Estadual Paulista, Avenida 24A, No. 1515, Bela Vista, Rio Claro, São Paulo 13506-900, Brazil
| | - Inaian Pignatti Teixeira
- Departamento de Educação Física, Instituto de Biociências, Universidade Estadual Paulista, Avenida 24A, No. 1515, Bela Vista, Rio Claro, São Paulo 13506-900, Brazil
| | - Glaucio Aparecido da Silva
- Departamento de Educação Física, Instituto de Biociências, Universidade Estadual Paulista, Avenida 24A, No. 1515, Bela Vista, Rio Claro, São Paulo 13506-900, Brazil
| | - Rodrigo Augusto Dalia
- Departamento de Educação Física, Instituto de Biociências, Universidade Estadual Paulista, Avenida 24A, No. 1515, Bela Vista, Rio Claro, São Paulo 13506-900, Brazil
| | - Marcelo Costa Júnior
- Departamento de Educação Física, Instituto de Biociências, Universidade Estadual Paulista, Avenida 24A, No. 1515, Bela Vista, Rio Claro, São Paulo 13506-900, Brazil
| | - Natalia Oliveira Bertolini
- Departamento de Educação Física, Instituto de Biociências, Universidade Estadual Paulista, Avenida 24A, No. 1515, Bela Vista, Rio Claro, São Paulo 13506-900, Brazil
| | - Maria Alice Rostom de Mello
- Departamento de Educação Física, Instituto de Biociências, Universidade Estadual Paulista, Avenida 24A, No. 1515, Bela Vista, Rio Claro, São Paulo 13506-900, Brazil
| | - Eliete Luciano
- Departamento de Educação Física, Instituto de Biociências, Universidade Estadual Paulista, Avenida 24A, No. 1515, Bela Vista, Rio Claro, São Paulo 13506-900, Brazil
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Redox balance and mitochondrial glycerol phosphate dehydrogenase activity in trained rats. Eur J Appl Physiol 2012; 112:3839-46. [DOI: 10.1007/s00421-012-2368-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Accepted: 02/24/2012] [Indexed: 01/29/2023]
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Influence of Chlorella powder intake during swimming stress in mice. Biochem Biophys Res Commun 2011; 404:121-6. [DOI: 10.1016/j.bbrc.2010.11.078] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2010] [Accepted: 11/17/2010] [Indexed: 11/22/2022]
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de Moura EG, Bonomo IT, Nogueira-Neto JF, de Oliveira E, Trevenzoli IH, Reis AM, Passos MCF, Lisboa PC. Maternal prolactin inhibition during lactation programs for metabolic syndrome in adult progeny. J Physiol 2009; 587:4919-29. [PMID: 19736303 DOI: 10.1113/jphysiol.2009.176289] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Neonatal malnutrition is associated with metabolic syndrome in adulthood. Maternal hypoprolactinaemia at the end of lactation (a precocious weaning model) caused obesity, leptin resistance and hypothyroidism in adult offspring, suggesting an association of prolactin (PRL) and programming of metabolic dysfunctions. Metabolic syndrome pathogenesis is still unclear, but abdominal obesity, higher triglycerides, lower high-density lipoprotein (HDL-c) and insulin resistance have been proposed to be important factors involved. We studied the consequences of maternal hypoprolactinaemia during lactation on parameters associated with metabolic syndrome. Lactating Wistar rats were treated with bromocriptine (BRO, 1 mg twice a day) or saline on days 19, 20 and 21 of lactation and their offspring were followed from weaning until 180 days old. Adult BRO offspring had higher body weight (+10%, P < 0.05), total body fat (+41%, P < 0.05), visceral fat (+20%, P < 0.05), subcutaneous fat (+3 times, P < 0.05) and total body protein (+24%, P < 0.05). BRO group presented hyperglycaemia (+16%, P < 0.05), lower muscle glycogen (51%, P < 0.05), higher cholesterol (+30%, P < 0.05), higher low-density lipoprotein (LDL-c) (+1.5 times, P < 0.05), higher triglycerides (+49%, P < 0.05), lower HDL-c (28%, P < 0.05), hyperleptinaemia (+2.9 times, P < 0.05), hypoadiponectinaemia (16%, P < 0.05) and hypoprolactinaemia (54%, P < 0.05) as well as higher insulin resistance index (+24%, P < 0.05). Regarding adrenal function, BRO rats showed hypercorticosteronaemia (+46%, P < 0.05) and higher total catecholamine (+37%, P < 0.05). In the hypothalamus, no change was observed in protein expression of the leptin signalling pathway. Thus, neonatal malnutrition induced by maternal PRL inhibition during late lactation programs for obesity, dyslipidaemia and insulin resistance in adult offspring increasing the risk for metabolic syndrome development.
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Affiliation(s)
- Egberto Gaspar de Moura
- Department of Physiology, Institute of Biology Roberto Alcantara Gomes, State University of Rio de Janeiro, Rio de Janeiro, Brazil
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