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Bienboire-Frosini C, Wang D, Marcet-Rius M, Villanueva-García D, Gazzano A, Domínguez-Oliva A, Olmos-Hernández A, Hernández-Ávalos I, Lezama-García K, Verduzco-Mendoza A, Gómez-Prado J, Mota-Rojas D. The Role of Brown Adipose Tissue and Energy Metabolism in Mammalian Thermoregulation during the Perinatal Period. Animals (Basel) 2023; 13:2173. [PMID: 37443971 DOI: 10.3390/ani13132173] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/21/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
Hypothermia is one of the most common causes of mortality in neonates, and it could be developed after birth because the uterus temperature is more elevated than the extrauterine temperature. Neonates use diverse mechanisms to thermoregulate, such as shivering and non-shivering thermogenesis. These strategies can be more efficient in some species, but not in others, i.e., altricials, which have the greatest difficulty with achieving thermoneutrality. In addition, there are anatomical and neurological differences in mammals, which may present different distributions and amounts of brown fat. This article aims to discuss the neuromodulation mechanisms of thermoregulation and the importance of brown fat in the thermogenesis of newborn mammals, emphasizing the analysis of the biochemical, physiological, and genetic factors that determine the distribution, amount, and efficiency of this energy resource in newborns of different species. It has been concluded that is vital to understand and minimize hypothermia causes in newborns, which is one of the main causes of mortality in neonates. This would be beneficial for both animals and producers.
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Affiliation(s)
- Cécile Bienboire-Frosini
- Department of Molecular Biology and Chemical Communication, Research Institute in Semiochemistry and Applied Ethology (IRSEA), 84400 Apt, France
| | - Dehua Wang
- School of Life Sciences, Shandong University, Qingdao 266237, China
| | - Míriam Marcet-Rius
- Animal Behaviour and Welfare Department, Research Institute in Semiochemistry and Applied Ethology (IRSEA), 84400 Apt, France
| | - Dina Villanueva-García
- Division of Neonatology, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| | - Angelo Gazzano
- Department of Veterinary Sciences, University of Pisa, 56124 Pisa, Italy
| | - Adriana Domínguez-Oliva
- Neurophysiology, Behavior and Animal Welfare Assessment, DPAA, Universidad Autónoma Metropolitana, Xochimilco Campus, Mexico City 04960, Mexico
| | - Adriana Olmos-Hernández
- Division of Biotechnology-Bioterio and Experimental Surgery, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra (INR-LGII), Mexico City 14389, Mexico
| | - Ismael Hernández-Ávalos
- Clinical Pharmacology and Veterinary Anesthesia, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México (UNAM), Cuautitlán Izcalli 54714, Mexico
| | - Karina Lezama-García
- Neurophysiology, Behavior and Animal Welfare Assessment, DPAA, Universidad Autónoma Metropolitana, Xochimilco Campus, Mexico City 04960, Mexico
| | - Antonio Verduzco-Mendoza
- Division of Biotechnology-Bioterio and Experimental Surgery, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra (INR-LGII), Mexico City 14389, Mexico
| | - Jocelyn Gómez-Prado
- Neurophysiology, Behavior and Animal Welfare Assessment, DPAA, Universidad Autónoma Metropolitana, Xochimilco Campus, Mexico City 04960, Mexico
| | - Daniel Mota-Rojas
- Neurophysiology, Behavior and Animal Welfare Assessment, DPAA, Universidad Autónoma Metropolitana, Xochimilco Campus, Mexico City 04960, Mexico
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Wunderlich ALM, Martins AB, de Souza CF, Stopa LRS, Monteiro ÉCAM, Aguiar DD, Guergolette RP, Zaia CTBV, Uchôa ET. Neonatal overnutrition, but not neonatal undernutrition, disrupts CCK-induced hypophagia and neuron activation of the nucleus of the solitary tract and paraventricular nucleus of hypothalamus of male Wistar rats. Brain Res Bull 2023; 195:109-119. [PMID: 36813046 DOI: 10.1016/j.brainresbull.2023.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 02/16/2023] [Accepted: 02/18/2023] [Indexed: 02/22/2023]
Abstract
Metabolic programming may be induced by reduction or enhancement of litter size, which lead to neonatal over or undernutrition, respectively. Changes in neonatal nutrition can challenge some regulatory processes in adulthood, such as the hypophagic effect of cholecystokinin (CCK). In order to investigate the effects of nutritional programming on the anorexigenic function of CCK in adulthood, pups were raised in small (SL, 3 pups per dam), normal (NL, 10 pups per dam), or large litters (LL, 16 pups per dam), and on postnatal day 60, male rats were treated with vehicle or CCK (10 µg/Kg) for the evaluation of food intake and c-Fos expression in the area postrema (AP), nucleus of solitary tract (NTS), and paraventricular (PVN), arcuate (ARC), ventromedial (VMH), and dorsomedial (DMH) nuclei of the hypothalamus. Overnourished rats showed increased body weight gain that was inversely correlated with neuronal activation of PaPo, VMH, and DMH neurons, whereas undernourished rats had lower body weight gain, inversely correlated with increased neuronal activation of PaPo only. SL rats showed no anorexigenic response and lower neuron activation in the NTS and PVN induced by CCK. LL exhibited preserved hypophagia and neuron activation in the AP, NTS, and PVN in response to CCK. CCK showed no effect in c-Fos immunoreactivity in the ARC, VMH, and DMH in any litter. These results indicate that anorexigenic actions, associated with neuron activation in the NTS and PVN, induced by CCK were impaired by neonatal overnutrition. However, these responses were not disrupted by neonatal undernutrition. Thus, data suggest that an excess or poor supply of nutrients during lactation display divergent effects on programming CCK satiation signaling in male adult rats.
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Affiliation(s)
| | - Andressa Busetti Martins
- Multicenter Postgraduate Program in Physiological Sciences, State University of Londrina, Londrina, PR, Brazil
| | - Camila Franciele de Souza
- Multicenter Postgraduate Program in Physiological Sciences, State University of Londrina, Londrina, PR, Brazil
| | - Larissa Rugila S Stopa
- Postgraduate Program in Physiological Sciences, State University of Londrina, Londrina, PR, Brazil
| | | | - Danielly D Aguiar
- Postgraduate Program in Physiological Sciences, State University of Londrina, Londrina, PR, Brazil
| | - Rhauany P Guergolette
- Postgraduate Program in Physiological Sciences, State University of Londrina, Londrina, PR, Brazil
| | - Cássia Thaïs B V Zaia
- Postgraduate Program in Physiological Sciences, State University of Londrina, Londrina, PR, Brazil; Multicenter Postgraduate Program in Physiological Sciences, State University of Londrina, Londrina, PR, Brazil; Department of Physiological Sciences, State University of Londrina, Londrina, PR, Brazil
| | - Ernane Torres Uchôa
- Postgraduate Program in Physiological Sciences, State University of Londrina, Londrina, PR, Brazil; Multicenter Postgraduate Program in Physiological Sciences, State University of Londrina, Londrina, PR, Brazil; Department of Physiological Sciences, State University of Londrina, Londrina, PR, Brazil.
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Litter Size Reduction as a Model of Overfeeding during Lactation and Its Consequences for the Development of Metabolic Diseases in the Offspring. Nutrients 2022; 14:nu14102045. [PMID: 35631188 PMCID: PMC9145223 DOI: 10.3390/nu14102045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/10/2022] [Accepted: 05/10/2022] [Indexed: 02/06/2023] Open
Abstract
Overfeeding during lactation has a deleterious impact on the baby’s health throughout life. In humans, early overnutrition has been associated with higher susceptibility to obesity and metabolic disorders in childhood and adulthood. In rodents, using a rodent litter size reduction model (small litter) to mimic early overfeeding, the same metabolic profile has been described. Therefore, the rodent small litter model is an efficient tool to investigate the adaptive mechanisms involved in obesogenesis. Besides central and metabolic dysfunctions, studies have pointed to the contribution of the endocrine system to the small litter phenotype. Hormones, especially leptin, insulin, and adrenal hormones, have been associated with satiety, glucose homeostasis, and adipogenesis, while hypothyroidism impairs energy metabolism, favoring obesity. Behavioral modifications, hepatic metabolism changes, and reproductive dysfunctions have also been reported. In this review, we update these findings, highlighting the interaction of early nutrition and the adaptive features of the endocrine system. We also report the sex-related differences and epigenetic mechanisms. This model highlights the intense plasticity during lactation triggering many adaptive responses, which are the basis of the developmental origins of health and disease (DOHaD) concept. Our review demonstrates the complexity of the adaptive mechanisms involved in the obesity phenotype promoted by early overnutrition, reinforcing the necessity of adequate nutritional habits during lactation.
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Pomar CA, Picó C, Palou A, Sánchez J. Maternal Consumption of a Cafeteria Diet during Lactation Leads to Altered Diet-Induced Thermogenesis in Descendants after Exposure to a Western Diet in Adulthood. Nutrients 2022; 14:nu14091958. [PMID: 35565926 PMCID: PMC9102879 DOI: 10.3390/nu14091958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 04/28/2022] [Accepted: 05/04/2022] [Indexed: 11/16/2022] Open
Abstract
This study investigates the ability of a maternal cafeteria diet during lactation to program brown adipose tissue (BAT) metabolic responses to an obesogenic diet re-exposure in the adult offspring after consuming a standard diet (SD). Nursing rats were fed an SD or a cafeteria diet during lactation. Their offspring (O-C and O-CAF, respectively) were weaned onto an SD, and at 16 weeks of age they were switched to a Western diet until week 24. Gene and protein expression in BAT were measured at PN22 and at 24 weeks. At PN22, compared to controls, O-CAF rats displayed lower mRNA levels of lipogenesis-related genes (Fasn), and higher expression of genes related to lipolysis (Pnpla2), fatty acid uptake (Cd36, Lpl), and oxidation (Cpt1b). Additionally, O-CAF animals displayed increased mRNA levels of Adrb3, Ucp1, and Cidea. In adulthood, these animals maintained lower mRNA levels of lipogenesis-related genes (Pparg, Srebf1, Fasn), but displayed lower expression of genes related to fatty acid uptake (Cd36), fatty acid oxidation (Cpt1b), lipolysis (Pnpla2), Adrb3, Ucp1, and Cidea. Thus, exposure to an obesogenic diet in nursing rats can affect long-term lipid metabolism and attenuate diet-induced thermogenesis in BAT in response to a new obesogenic dietary challenge later in life.
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Affiliation(s)
- Catalina Amadora Pomar
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Group of Nutrigenomics, Biomarkers and Risk Evaluation), University of the Balearic Islands, 07122 Palma, Spain; (C.A.P.); (A.P.); (J.S.)
- Health Research Institute of the Balearic Islands IdISBa, 07010 Palma, Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 28029 Madrid, Spain
| | - Catalina Picó
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Group of Nutrigenomics, Biomarkers and Risk Evaluation), University of the Balearic Islands, 07122 Palma, Spain; (C.A.P.); (A.P.); (J.S.)
- Health Research Institute of the Balearic Islands IdISBa, 07010 Palma, Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-971-173454
| | - Andreu Palou
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Group of Nutrigenomics, Biomarkers and Risk Evaluation), University of the Balearic Islands, 07122 Palma, Spain; (C.A.P.); (A.P.); (J.S.)
- Health Research Institute of the Balearic Islands IdISBa, 07010 Palma, Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 28029 Madrid, Spain
| | - Juana Sánchez
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Group of Nutrigenomics, Biomarkers and Risk Evaluation), University of the Balearic Islands, 07122 Palma, Spain; (C.A.P.); (A.P.); (J.S.)
- Health Research Institute of the Balearic Islands IdISBa, 07010 Palma, Spain
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 28029 Madrid, Spain
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Yang H, Chen N, Fan L, Lin X, Liu J, You Y, Zhong Y, Chen Y, Li J, Xiao X. Pre-Weaning Exposure to Maternal High-Fat Diet Is a Critical Developmental Window for Programming the Metabolic System of Offspring in Mice. Front Endocrinol (Lausanne) 2022; 13:816107. [PMID: 35222275 PMCID: PMC8867064 DOI: 10.3389/fendo.2022.816107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/05/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Maternal high-fat diet (HFD) during pregnancy and lactation exerts long-term effects on the health of offspring. However, the critical developmental window for metabolic programming of maternal exposure to HFD on pathogenesis of obesity in offspring needs further clarification. MATERIALS & METHODS Female ICR mice were fed low-fat diet (LFD) or HFD for 8 weeks until delivery. During lactation, half of LFD dams received HFD while the other half of LFD dams and HFD dams maintained the previous diet. Male offspring were weaned at postnatal day 21 (P21) and fed LFD or HFD for 7 weeks. Metabolic parameters, biochemical, and histological indicators of thermogenesis, rectal temperature, and sympathetic nerve tone were detected at P21 and 10 weeks old. RESULTS At P21, LH (maternal LFD before delivery but HFD during lactation) and HH (maternal HFD before delivery and during lactation) offspring gained more body weight and showed higher serum glucose and triglyceride levels as compared with LL (maternal LFD before delivery and during lactation), and the metabolic characters were maintained until 10 weeks age when fed with LFD after weaning. However, LH offspring exhibited a greater degree of metabolic abnormalities compared to HH offspring, with increased body weight, as well as lower norepinephrine (NE)-stimulated rectal temperature rise when fed with HFD after weaning. The lower UCP1 levels and HSL phosphorylation in LH offspring further suggested that brown adipose tissue (BAT) thermogenic function was impaired. CONCLUSION Exposure to maternal HFD feeding during pre-weaning period alone showed similar detrimental effects on programming metabolic system of offspring as those of both prenatal and early postnatal HFD feeding. Early postnatal stage is a critical time window for metabolic programming and has profound and long-lasting effects on BAT development and function through sympathetic nerve-mediated thermogenesis.
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Affiliation(s)
- Hong Yang
- Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Nan Chen
- Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lei Fan
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Xiaojing Lin
- Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Juncheng Liu
- Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yuehua You
- Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ying Zhong
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Nutrition and Food Hygiene, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Yan Chen
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Endocrinology and Nephrology, Chongqing Emergency Medical Center, Chongqing University Central Hospital, Chongqing, China
| | - Jibin Li
- Department of Nutrition and Food Hygiene, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Xiaoqiu Xiao
- Department of Endocrinology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- The Chongqing Key Laboratory of Translational Medicine in Major Metabolic Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing, China
- *Correspondence: Xiaoqiu Xiao,
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Almeida DL, Moreira VM, Cardoso LE, Junior MDF, Pavanelo A, Ribeiro TA, da Silva Franco CC, Tófolo LP, Peres MNC, Ribeiro MVG, Ferreira ARO, Gomes RM, Miranda RA, Trevenzoli IH, Armitage JA, Palma-Rigo K, de Freitas Mathias PC. Lean in one way, in obesity another: effects of moderate exercise in brown adipose tissue of early overfed male Wistar rats. Int J Obes (Lond) 2022; 46:137-143. [PMID: 34552207 DOI: 10.1038/s41366-021-00969-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 09/01/2021] [Accepted: 09/13/2021] [Indexed: 11/09/2022]
Abstract
BACKGROUND Early postnatal overfeeding (PO) induces long-term overweight and reduces brown adipose tissue (BAT) thermogenesis. Exercise has been suggested as a possible intervention to increase BAT function. In this study, we investigated chronical effects of moderate-intensity exercise in BAT function in postnatal overfed male Wistar rats METHODS: Litters' delivery was on postnatal-day 0 - PN0. At PN2, litters were adjusted to nine (normal litter - NL) or three pups (small litter - SL) per dam. Animals were weaned on PN21 and in PN30 randomly divided into sedentary (NL-Sed and SL-Sed) or exercised (NL-Exe and SL-Exe), N of 14 litters per group. Exercise protocol started (PN30) with an effort test; training sessions were performed three times weekly at 60% of the VO2max achieved in effort test, until PN80. On PN81, a temperature transponder was implanted beneath the interscapular BAT, whose temperature was assessed in periods of lights-on and -off from PN87 to PN90. Sympathetic nerve activation of BAT was registered at PN90. Animals were euthanized at PN91 and tissues collected RESULTS: PO impaired BAT thermogenesis in lights-on (pPO < 0.0001) and -off (pPO < 0.01). Exercise increased BAT temperature in lights-on (pExe < 0.0001). In NL-Exe, increased BAT activity was associated with higher sympathetic activity (pExe < 0.05), β3-AR (pExe < 0.001), and UCP1 (pExe < 0.001) content. In SL-Exe, increasing BAT thermogenesis is driven by a combination of tissue morphology remodeling (pExe < 0.0001) with greater effect in increasing UCP1 (pExe < 0.001) and increased β3-AR (pExe < 0.001) content. CONCLUSION Moderate exercise chronically increased BAT thermogenesis in both, NL and SL groups. In NL-Exe by increasing Sympathetic activity, and in SL-Exe by a combination of increased β3-AR and UCP1 content with morphologic remodeling of BAT. Chronically increasing BAT thermogenesis in obese subjects may lead to higher overall energy expenditure, favoring the reduction of obesity and related comorbidities.
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Affiliation(s)
- Douglas Lopes Almeida
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil.
- Department of Physiology, State University of Londrina, Londrina, Paraná, Brazil.
| | - Veridiana Mota Moreira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
- Department of Physiology, State University of Sergipe, São Cristóvão, Sergipe, Brazil
| | - Lucas Eduardo Cardoso
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | | | - Audrei Pavanelo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Tatiane Aparecida Ribeiro
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Claudinéia Conationi da Silva Franco
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Laize Perón Tófolo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Maria Natália Chimirri Peres
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Maiara Vanusa Guedes Ribeiro
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Anna Rebeka Oliveira Ferreira
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Rodrigo Mello Gomes
- Physiological Sciences Department, Federal University of Goiás, Av Esperança, Goiânia/GO, Brazil
| | - Rosiane Aparecida Miranda
- Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, 550 Av, Pedro Calmon, Rio de Janeiro, Brazil
| | - Isis Hara Trevenzoli
- Carlos Chagas Filho Biophysics Institute, Federal University of Rio de Janeiro, 550 Av, Pedro Calmon, Rio de Janeiro, Brazil
| | - James Andrew Armitage
- Deakin University, School of Medicine, Optometry, 75 Pigdons Rd, Waurn Ponds, VIC, Australia
| | - Kesia Palma-Rigo
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
| | - Paulo Cesar de Freitas Mathias
- Laboratory of Secretion Cell Biology, Department of Biotechnology, Cell Biology and Genetics, State University of Maringá, 5790 Av, Colombo, Maringá/PR, Brazil
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Bruder J, Fromme T. Global Adipose Tissue Remodeling During the First Month of Postnatal Life in Mice. Front Endocrinol (Lausanne) 2022; 13:849877. [PMID: 35250892 PMCID: PMC8892685 DOI: 10.3389/fendo.2022.849877] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 01/21/2022] [Indexed: 12/13/2022] Open
Abstract
During the first month of postnatal life, adipose tissue depots of mice go through a drastic, but transient, remodeling process. Between postnatal days 10 and 20, several white fat depots display a strong and sudden surge in beige adipocyte emergence that reverts until day 30. At the same time, brown fat depots appear to undergo an opposite phenomenon. We comprehensively describe these events, their depot specificity and known environmental and genetic interactions, such as maternal diet, housing temperature and mouse strain. We further discuss potential mechanisms and plausible purposes, including the tempting hypothesis that postnatal transient remodeling creates a lasting adaptive capacity still detectable in adult animals. Finally, we propose postnatal adipose tissue remodeling as a model process to investigate mechanisms of beige adipocyte recruitment advantageous to cold exposure or adrenergic stimulation in its entirely endogenous sequence of events without external manipulation.
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Affiliation(s)
- Johanna Bruder
- Else Kröner-Fresenius Center for Nutritional Medicine (EKFZ), Technical University of Munich, Freising, Germany
- Chair of Molecular Nutritional Medicine, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
| | - Tobias Fromme
- Chair of Molecular Nutritional Medicine, TUM School of Life Sciences, Technical University of Munich, Freising, Germany
- *Correspondence: Tobias Fromme,
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8
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Oliveira Neto J, Boechat SK, Romão JS, Kuhnert LB, Pazos-Moura C, Oliveira KJ. Cinnamaldehyde treatment during adolescence improves white and brown adipose tissue metabolism in a male rat model of early obesity. Food Funct 2022; 13:3405-3418. [DOI: 10.1039/d1fo03871k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Early obesity is a serious health problem and nutritional therapeutic strategies during young age may improve health outcomes throughout life. Cinnamaldehyde, major component of cinnamon, exhibits several beneficial metabolic effects....
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9
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Alzamendi A, Miguel I, Zubiría MG, Gambaro SE, Spinedi E, Giovambattista A. Maternal high fructose diet exacerbates white adipose tissue thermogenic process in offspring upon exposure to cold temperature. Life Sci 2021; 287:120066. [PMID: 34678264 DOI: 10.1016/j.lfs.2021.120066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 10/09/2021] [Accepted: 10/15/2021] [Indexed: 12/17/2022]
Abstract
AIM An adverse endogenous environment during early life predisposes to metabolic disorder development. We previously reported adverse metabolic and adipose tissue effects in adult male rats born to dams fed with a fructose-rich diet (FRD). The aim of this work was to determine the effect of a FRD consumed by the pregnant mother on the white adipose tissue (WAT) browning capacity of male offspring at adulthood. MAIN METHODS Adult SD male offspring from control (C) and FRD-fed mothers were exposed during one week to a cold stimulus. WAT browning capacity was studied through in vivo and in vitro approaches. KEY FINDINGS After cold exposure, WAT browning was higher in fructose-programmed animals as evidenced by an increase in ucp-1 gene expression, protein levels, and higher UCP-1 positive foci. Moreover, pgc1-α gene expression was increased. In vitro studies showed a lower adipogenic capacity in cells of prenatally fructose-exposed animals differentiated with a white differentiation cocktail, while a higher ucp-1 expression was noted when their cells were treated with a pro-beige differentiation cocktail. SIGNIFICANCE For the first time we demonstrate that pre-natal fructose exposure predisposes programmed male rats to a higher WAT browning-induced response, under stimulated conditions, despite an apparent lower basal thermogenic capacity. These results should be considered in future studies to generate new therapeutic approaches to deal with adverse programming malnutrition effects.
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Affiliation(s)
- A Alzamendi
- Laboratorio de Neuroendocrinología, Instituto Multidisciplinario de Biología Celular (IMBICE, CICPBA-CONICET-UNLP), Calle 526, 10 y 11, La Plata 1900, Argentina
| | - I Miguel
- Laboratorio de Neuroendocrinología, Instituto Multidisciplinario de Biología Celular (IMBICE, CICPBA-CONICET-UNLP), Calle 526, 10 y 11, La Plata 1900, Argentina
| | - M G Zubiría
- Laboratorio de Neuroendocrinología, Instituto Multidisciplinario de Biología Celular (IMBICE, CICPBA-CONICET-UNLP), Calle 526, 10 y 11, La Plata 1900, Argentina
| | - S E Gambaro
- Laboratorio de Neuroendocrinología, Instituto Multidisciplinario de Biología Celular (IMBICE, CICPBA-CONICET-UNLP), Calle 526, 10 y 11, La Plata 1900, Argentina
| | - E Spinedi
- Centro de Endocrinología Experimental y Aplicada (CENEXA, UNLP-CONICET), Facultad de Cs. Médicas, Universidad Nacional de La Plata, Avenida 60 y 120, La Plata 1900, Argentina
| | - A Giovambattista
- Laboratorio de Neuroendocrinología, Instituto Multidisciplinario de Biología Celular (IMBICE, CICPBA-CONICET-UNLP), Calle 526, 10 y 11, La Plata 1900, Argentina.
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10
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Ceglarek VM, Bertasso IM, Pietrobon CB, Scomazzon SP, Leite NC, Bonfleur ML, Araújo ACF, Balbo SL, Grassiolli S. Maternal Roux-en-Y gastric bypass surgery reduces lipid deposition and increases UCP1 expression in the brown adipose tissue of male offspring. Sci Rep 2021; 11:1158. [PMID: 33441773 PMCID: PMC7806700 DOI: 10.1038/s41598-020-80104-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 12/03/2020] [Indexed: 01/22/2023] Open
Abstract
Maternal obesity induced by cafeteria diet (CAF) predisposes offspring to obesity and metabolic diseases, events that could be avoided by maternal bariatric surgery (BS). Herein we evaluated whether maternal BS is able to modulate brown adipose tissue (BAT) morphology and function in adult male rats born from obese female rats submitted to Roux-en-Y gastric bypass (RYGB). For this, adult male rat offspring were obtained from female rats that consumed standard diet (CTL), or CAF diet, and were submitted to simulated operation or RYGB. Analysis of offspring showed that, at 120 days of life, the maternal CAF diet induced adiposity and decreased the expression of mitochondrial Complex I (CI) and Complex III (CIII) in the BAT, resulting in higher accumulation of lipids than in BAT from offspring of CTL dams. Moreover, maternal RYGB increased UCP1 expression and prevented excessive deposition of lipids in the BAT of adult male offspring rats. However, maternal RYGB failed to reverse the effects of maternal diet on CI and CIII expression. Thus, maternal CAF promotes higher lipid deposition in the BAT of offspring, contributing to elevated adiposity. Maternal RYGB prevented obesity in offspring, probably by increasing the expression of UCP1.
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Affiliation(s)
- Vanessa Marieli Ceglarek
- Laboratory of Endocrine and Metabolic Physiology, Biosciences and Health, Postgraduate, University of West Parana, Cascavel, PR, Brazil. .,Institute of Basic Health Sciences. Biological Sciences: Physiology, postgraduate. Department of Physiology, Room 337-7, Laboratory of Neurophysiology of Cognition and Development of the Brain, Federal University of Rio Grande do Sul, 500, Sarmento Leite - Farroupilha, Porto Alegre, RS, 90050-170, Brazil.
| | - Iala Milene Bertasso
- Laboratory of Endocrine and Metabolic Physiology, Biosciences and Health, Postgraduate, University of West Parana, Cascavel, PR, Brazil
| | - Carla Bruna Pietrobon
- Laboratory of Endocrine and Metabolic Physiology, Biosciences and Health, Postgraduate, University of West Parana, Cascavel, PR, Brazil
| | - Sofia Pizzato Scomazzon
- Medical Sciences: Endocrinology Post Graduate Program, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Nayara Carvalho Leite
- Obesity Comorbidities and Research Center, University of Campinas, Campinas, SP, Brazil
| | - Maria Lúcia Bonfleur
- Laboratory of Endocrine and Metabolic Physiology, Biosciences and Health, Postgraduate, University of West Parana, Cascavel, PR, Brazil
| | - Allan Cezar Faria Araújo
- Laboratory of Endocrine and Metabolic Physiology, Biosciences and Health, Postgraduate, University of West Parana, Cascavel, PR, Brazil
| | - Sandra Lucinei Balbo
- Laboratory of Endocrine and Metabolic Physiology, Biosciences and Health, Postgraduate, University of West Parana, Cascavel, PR, Brazil
| | - Sabrina Grassiolli
- Laboratory of Endocrine and Metabolic Physiology, Biosciences and Health, Postgraduate, University of West Parana, Cascavel, PR, Brazil
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11
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Zhang Q, Xiao X, Zheng J, Li M, Yu M, Ping F, Wang T, Wang X. Maternal High-Fat Diet Disturbs the DNA Methylation Profile in the Brown Adipose Tissue of Offspring Mice. Front Endocrinol (Lausanne) 2021; 12:705827. [PMID: 34690924 PMCID: PMC8531551 DOI: 10.3389/fendo.2021.705827] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 07/30/2021] [Indexed: 12/18/2022] Open
Abstract
The prevalence of obesity has become a threatening global public health issue. The consequence of obesity is abnormal energy metabolism. Unlike white adipose tissue (WAT), brown adipose tissue (BAT) has a unique role in nonshivering thermogenesis. Lipids and glucose are consumed to maintain energy and metabolic homeostasis in BAT. Recently, accumulating evidence has indicated that exposure to excess maternal energy intake affects energy metabolism in offspring throughout their life. However, whether excess intrauterine energy intake influences BAT metabolism in adulthood is not clear. In this study, mouse dams were exposed to excess energy intake by feeding a high-fat diet (HFD) before and during pregnancy and lactation. The histology of BAT was assessed by hematoxylin and eosin staining. The genome-wide methylation profile of BAT was determined by a DNA methylation array, and specific site DNA methylation was quantitatively analyzed by methylated DNA immunoprecipitation (MeDIP) qPCR. We found that intrauterine exposure to a high-energy diet resulted in blood lipid panel disorders and impaired the BAT structure. Higher methylation levels of genes involved in thermogenesis and fatty acid oxidation (FAO) in BAT, such as Acaa2, Acsl1, and Cox7a1, were found in 16-week-old offspring from mothers fed with HFD. Furthermore, the expression of Acaa2, Acsl1, and Cox7a1 was down-regulated by intrauterine exposure to excess energy intake. In summary, our results reveal that excess maternal energy leads to a long-term disorder of BAT in offspring that involves the activation of DNA methylation of BAT-specific genes involved in fatty acid oxidation and thermogenesis.
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12
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Neonatal overnutrition programming impairs cholecystokinin effects in adultmale rats. J Nutr Biochem 2020; 86:108494. [DOI: 10.1016/j.jnutbio.2020.108494] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 08/05/2020] [Accepted: 08/12/2020] [Indexed: 12/12/2022]
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13
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Gómez-Gallego C, García-Mantrana I, Martínez-Costa C, Salminen S, Isolauri E, Collado MC. The Microbiota and Malnutrition: Impact of Nutritional Status During Early Life. Annu Rev Nutr 2020; 39:267-290. [PMID: 31433738 DOI: 10.1146/annurev-nutr-082117-051716] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
According to the developmental origins of health and disease hypothesis, our health is determined by events experienced in utero and during early infancy. Indeed, both our prenatal and postnatal nutrition conditions have an impact on the initial architecture and activity of our microbiota. Recent evidence has underlined the importance of the composition of the early gut microbiota in relation to malnutrition, whether it be undernutrition or overnutrition, that is, in terms of both stunted and overweight development. It remains unclear how early microbial contact is linked to the risk of disease, as well as whether alterations in the microbiome underlie the pathogenesis of malnutrition or are merely the end result of it, which indicates that thequestion of causality must urgently be answered. This review provides information on the complex interaction between the microbiota and nutrition during the first 1,000 days of life, taking into account the impact of both undernutrition and overnutrition on the microbiota and on infants' health outcomes in the short- and long-term.
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Affiliation(s)
- Carlos Gómez-Gallego
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, FI-70210 Kuopio, Finland; .,Functional Foods Forum, University of Turku, FI-20520 Turku, Finland;
| | - Izaskun García-Mantrana
- Institute of Agrochemistry and Food Technology (IATA-CSIC), National Research Council, 46980 Valencia, Spain; ,
| | - Cecilia Martínez-Costa
- Department of Pediatrics, School of Medicine, University of Valencia, 46010 Valencia, Spain.,Pediatric Gastroenterology and Nutrition Section, Hospital Clinico Universitario Valencia, INCLIVA,46010 Valencia, Spain;
| | - Seppo Salminen
- Functional Foods Forum, University of Turku, FI-20520 Turku, Finland;
| | - Erika Isolauri
- Department of Paediatrics and Adolescent Medicine, Turku University Hospital, FI-20500 Turku, Finland; .,Department of Clinical Sciences, Faculty of Medicine, University of Turku, FI-20014 Turku, Finland
| | - M Carmen Collado
- Institute of Agrochemistry and Food Technology (IATA-CSIC), National Research Council, 46980 Valencia, Spain; , .,Functional Foods Forum, University of Turku, FI-20520 Turku, Finland;
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14
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Soch A, Spencer SJ. Consequences of early life overfeeding for microglia - Perspectives from rodent models. Brain Behav Immun 2020; 88:256-261. [PMID: 32088312 DOI: 10.1016/j.bbi.2020.02.007] [Citation(s) in RCA: 1] [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] [Received: 01/14/2020] [Revised: 02/13/2020] [Accepted: 02/19/2020] [Indexed: 12/24/2022] Open
Abstract
The early life period is crucially important to how the individual develops, and environmental and lifestyle challenges during this time can lead to lasting programming effects on the brain and immune system. In particular, poor diet in early development can lead to long-term negative metabolic and cognitive outcomes, with those who over-eat in early development being at risk of obesity and poor learning and memory throughout their adult lives. Current research has identified a neuroinflammatory component to this metabolic and cognitive programming that can potentially be manipulated to restore a healthy phenotype. Thus, early life over-feeding in a rat model leads to microglial priming and an exacerbated microglial response to immune challenge when the rats reach adulthood. Microglial responses to a learning task are also impaired. To specifically investigate the role of microglia in these programming effects our group has developed a novel transgenic rat with a diphtheria toxin receptor insertion in the promoter region for the Cx3cr1 gene, expressed on microglia and monocytes; allowing us to conditionally ablate microglia throughout the brain. With this model we reveal that microglia have a direct role in regulating feeding behavior and modifying cognition, but are not likely to be the sole mechanism by which early life overfeeding confers lasting neuroimmune and cognitive effects. Additional work implicates changes to the hypothalamic-pituitary-adrenal axis in this. Together these data highlight the importance of dietary choices in early life and the potential for positive interventions targeting the neuroimmune and neuroendocrine stress systems to reverse such programming damage.
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Affiliation(s)
- Alita Soch
- School of Health and Biomedical Sciences, RMIT University, Melbourne, Vic., Australia
| | - Sarah J Spencer
- School of Health and Biomedical Sciences, RMIT University, Melbourne, Vic., Australia; ARC Centre of Excellence for Nanoscale Biophotonics, RMIT University, Melbourne, Vic., Australia.
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15
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Marangon PB, Mecawi AS, Antunes-Rodrigues J, Elias LLK. Perinatal over- and underfeeding affect hypothalamic leptin and ghrelin neuroendocrine responses in adult rats. Physiol Behav 2020; 215:112793. [PMID: 31874179 DOI: 10.1016/j.physbeh.2019.112793] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 12/17/2019] [Accepted: 12/19/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND Changes in the nutritional supply during the perinatal period can lead to metabolic disturbances and obesity in adulthood. OBJECTIVE The divergent litter size model was used to investigate the hypothalamic sensitivity to leptin and ghrelin as well as the mechanisms involved in the disruption of food intake and energy expenditure. METHODS On postnatal day 3 (P3), male Wistar rats were divided into 3 groups: small litter (SL - 3 pups), normal litter (NL - 10 pups), and large litter (LL - 16 pups). Animals at P60 were intraperitoneally treated with leptin (500 µg/Kg), ghrelin (40 µg/Kg), or vehicle (0.9% NaCl) at 5 pm and the following parameters were assessed: food intake and body weight; immunostaining of p-STAT-3 in the hypothalamus; Western Blotting analysis of p-AMPKα and UCP2 in the mediobasal hypothalamus (MBH), and UCP1 in the interscapular brown adipose tissue (BAT); or heat production, VO2, VCO2, and locomotor activity. RESULTS SL rats had earlier leptin and ghrelin surges, while LL rats had no variations. At P60, after leptin treatment, LL rats showed hypophagia and increased p-STAT-3 expression in the arcuate nucleus, but SL rats had no response. After ghrelin treatment, LL rats did not have the orexigenic response or AMPKα phosphorylation in the MBH, while SL animals, unexpectedly, decreased body weight gain, without changes in food intake, and increased metabolic parameters and UCP1 expression in the BAT. CONCLUSIONS Changes in the nutritional supply at early stages of life modify leptin and ghrelin responsiveness in adulthood, programming metabolic and central mechanisms, which contribute to overweight and obesity in adulthood.
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Affiliation(s)
- Paula B Marangon
- Department of Physiology, Ribeirao Preto Medical School, University of Sao Paulo, São Paulo, Brazil
| | - André S Mecawi
- Department of Biophysics, Paulista School of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | - José Antunes-Rodrigues
- Department of Physiology, Ribeirao Preto Medical School, University of Sao Paulo, São Paulo, Brazil
| | - Lucila L K Elias
- Department of Physiology, Ribeirao Preto Medical School, University of Sao Paulo, São Paulo, Brazil.
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16
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Xavier JLP, Scomparin DX, Pontes CC, Ribeiro PR, Cordeiro MM, Marcondes JA, Mendonça FO, Silva MTD, Oliveira FBD, Franco GCN, Grassiolli S. Litter Size Reduction Induces Metabolic and Histological Adjustments in Dams throughout Lactation with Early Effects on Offspring. AN ACAD BRAS CIENC 2019; 91:e20170971. [PMID: 30916150 DOI: 10.1590/0001-3765201920170971] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 06/07/2018] [Indexed: 01/08/2023] Open
Abstract
In the present study we analyzed morphological and metabolic alterations in dams nursing small litters and their consequences to offspring throughout lactation. Offspring sizes were adjusted to Small Litter (SL, 3 pups/ dam) and Normal Litter (NL, 9 pups/ dam). Body weight, food intake, white adipose tissue (WAT) content, histological analysis of the pancreas, mammary gland (MG) and brown adipose tissue (BAT) as well as, plasma parameters and milk composition were measured in dams and pups on the 7th, 14th and 21st days of lactation. In general, SL-dams presented higher body weight and retroperitoneal fat content, elevated fat infiltration in BAT, reduced islets size and hyperglycemia throughout lactation in relation to NL-dams (p<0.05). Moreover, MG from SL-dams had reduced alveoli development and high adipocytes content, resulting in milk with elevated energetic value and fat content in relation to NL-dams (p<0.05). Maternal states influenced offspring anthropometric conditions during lactation, offspring-SL displayed higher body weight and growth, hyperglycemia, augmented lipid deposition in BAT and elevated islet. Thus, maternal histological and metabolic changes are due to modifications to nursing small litters and reinforce the importance of preserving maternal health during lactation avoiding early programming effects on offspring preventing metabolic consequences later in life.
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Affiliation(s)
- João Lucas P Xavier
- Departamento de Biologia Geral, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Uvaranas, 84030-900 Ponta Grossa, PR, Brazil
| | - Dionizia X Scomparin
- Departamento de Biologia Geral, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Uvaranas, 84030-900 Ponta Grossa, PR, Brazil
| | - Catherine C Pontes
- Departamento de Biologia Geral, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Uvaranas, 84030-900 Ponta Grossa, PR, Brazil
| | - Paulo Roberto Ribeiro
- Departamento de Biologia Geral, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Uvaranas, 84030-900 Ponta Grossa, PR, Brazil
| | - Maiara M Cordeiro
- Departamento de Biologia Geral, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Uvaranas, 84030-900 Ponta Grossa, PR, Brazil
| | - Jessica A Marcondes
- Departamento de Biologia Geral, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Uvaranas, 84030-900 Ponta Grossa, PR, Brazil
| | - Felipe O Mendonça
- Departamento de Biologia Geral, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Uvaranas, 84030-900 Ponta Grossa, PR, Brazil
| | - Makcine T da Silva
- Departamento de Biologia Geral, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Uvaranas, 84030-900 Ponta Grossa, PR, Brazil
| | - Fabio B de Oliveira
- Departamento de Biologia Geral, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Uvaranas, 84030-900 Ponta Grossa, PR, Brazil
| | - Gilson C N Franco
- Departamento de Biologia Geral, Universidade Estadual de Ponta Grossa, Avenida Carlos Cavalcanti, 4748, Uvaranas, 84030-900 Ponta Grossa, PR, Brazil
| | - Sabrina Grassiolli
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná, Rua Universitária, 2069, Jardim Universitário, 85819-110 Cascavel, PR, Brazil
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17
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Glavas MM, Hui Q, Tudurí E, Erener S, Kasteel NL, Johnson JD, Kieffer TJ. Early overnutrition reduces Pdx1 expression and induces β cell failure in Swiss Webster mice. Sci Rep 2019; 9:3619. [PMID: 30842440 PMCID: PMC6403421 DOI: 10.1038/s41598-019-39177-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 01/07/2019] [Indexed: 12/25/2022] Open
Abstract
Childhood obesity and early rapid growth increase the risk for type 2 diabetes. Such early overnutrition can be modeled in mice by reducing litter size. We investigated the effects of early overnutrition and increased dietary fat intake on β cell function in Swiss Webster mice. On a moderate-fat diet, early overnutrition accelerated weight gain and induced hyperinsulinemia in pups. Early overnutrition males exhibited higher β cell mass but reduced islet insulin content and Pdx1 expression. Males had a high diabetes incidence that was increased by early overnutrition, characterized by a progressive increase in insulin secretion as well as β cell death, indicated by histological analysis and increased circulating miR-375 levels. Females maintained normoglycemia throughout life. High-fat diet (HFD) increased diabetes incidence in males, whereas low-fat diet was completely protective. This protective effect was abolished in early overnutrition males transiently exposed to HFD in early life. Although Swiss Webster mice are not known to be diabetes-prone, the high diabetes incidence suggests an underlying genetic susceptibility that can be induced by overnutrition and increased dietary fat intake in early life. Thus, the nutritional environment in early life may impact long-term β cell function and increase diabetes risk, particularly in genetically susceptible individuals.
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Affiliation(s)
- Maria M Glavas
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Queenie Hui
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Eva Tudurí
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, BC, Canada.,Centro de Investigación Biomédica en Red de Diabetes y , Enfermedades Metabólicas Asociadas (CIBERDEM), Madrid, Spain
| | - Suheda Erener
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Naomi L Kasteel
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, BC, Canada
| | - James D Johnson
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Timothy J Kieffer
- Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, BC, Canada. .,Department of Surgery, University of British Columbia, Vancouver, BC, Canada.
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18
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Abstract
The organs require oxygen and other types of nutrients (amino acids, sugars, and lipids) to function, the heart consuming large amounts of fatty acids for oxidation and adenosine triphosphate (ATP) generation.
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19
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Bytautiene Prewit E, Porter C, La Rosa M, Bhattarai N, Yin H, Gamble P, Kechichian T, Sidossis LS. Adipose tissue uncoupling protein 1 levels and function are increased in a mouse model of developmental obesity induced by maternal exposure to high-fat diet. J Dev Orig Health Dis 2018; 9:401-408. [PMID: 29769150 PMCID: PMC6070410 DOI: 10.1017/s2040174418000107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
With brown adipose tissue (BAT) becoming a possible therapeutic target to counteract obesity, the prenatal environment could represent a critical window to modify BAT function and browning of white AT. We investigated if levels of uncoupling protein 1 (UCP1) and UCP1-mediated thermogenesis are altered in offspring exposed to prenatal obesity. Female CD-1 mice were fed a high-fat (HF) or standard-fat (SF) diet for 3 months before breeding. After weaning, all pups were placed on SF. UCP1 mRNA and protein levels were quantified using quantitative real-time PCR and Western blot analysis, respectively, in brown (BAT), subcutaneous (SAT) and visceral (VAT) adipose tissues at 6 months of age. Total and UCP1-dependent mitochondrial respiration were determined by high-resolution respirometry. A Student's t-test and Mann-Whitney test were used (significance: P<0.05). UCP1 mRNA levels were not different between the HF and SF offspring. UCP1 protein levels, total mitochondrial respiration and UCP1-dependent respiration were significantly higher in BAT from HF males (P=0.02, P=0.04, P=0.005, respectively) and females (P=0.01, P=0.04, P=0.02, respectively). In SAT, the UCP1 protein was significantly lower in HF females (P=0.03), and the UCP1-dependent thermogenesis was significantly lower from HF males (P=0.04). In VAT, UCP1 protein levels and UCP1-dependent respiration were significantly lower only in HF females (P=0.03, P=0.04, respectively). There were no differences in total respiration in SAT and VAT. Prenatal exposure to maternal obesity leads to significant increases in UCP1 levels and function in BAT in offspring with little impact on UCP1 levels and function in SAT and VAT.
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Affiliation(s)
- E Bytautiene Prewit
- 1Department of Obstetrics & Gynecology,The University of Texas Medical Branch at Galveston,Galveston,TX,USA
| | - C Porter
- 2Department of Surgery,The University of Texas Medical Branch at Galveston,Shriners Hospitals for Children,Galveston,TX,USA
| | - M La Rosa
- 1Department of Obstetrics & Gynecology,The University of Texas Medical Branch at Galveston,Galveston,TX,USA
| | - N Bhattarai
- 2Department of Surgery,The University of Texas Medical Branch at Galveston,Shriners Hospitals for Children,Galveston,TX,USA
| | - H Yin
- 1Department of Obstetrics & Gynecology,The University of Texas Medical Branch at Galveston,Galveston,TX,USA
| | - P Gamble
- 1Department of Obstetrics & Gynecology,The University of Texas Medical Branch at Galveston,Galveston,TX,USA
| | - T Kechichian
- 1Department of Obstetrics & Gynecology,The University of Texas Medical Branch at Galveston,Galveston,TX,USA
| | - L S Sidossis
- 2Department of Surgery,The University of Texas Medical Branch at Galveston,Shriners Hospitals for Children,Galveston,TX,USA
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20
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Ellsworth L, Harman E, Padmanabhan V, Gregg B. Lactational programming of glucose homeostasis: a window of opportunity. Reproduction 2018; 156:R23-R42. [PMID: 29752297 DOI: 10.1530/rep-17-0780] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2017] [Accepted: 05/11/2018] [Indexed: 12/21/2022]
Abstract
The window of lactation is a critical period during which nutritional and environmental exposures impact lifelong metabolic disease risk. Significant organ and tissue development, organ expansion and maturation of cellular functions occur during the lactation period, making this a vulnerable time during which transient insults can have lasting effects. This review will cover current literature on factors influencing lactational programming such as milk composition, maternal health status and environmental endocrine disruptors. The underlying mechanisms that have the potential to contribute to lactational programming of glucose homeostasis will also be addressed, as well as potential interventions to reduce offspring metabolic disease risk.
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Affiliation(s)
- Lindsay Ellsworth
- Department of PediatricsUniversity of Michigan, Ann Arbor, Michigan, USA
| | - Emma Harman
- Department of PediatricsUniversity of Michigan, Ann Arbor, Michigan, USA
| | | | - Brigid Gregg
- Department of PediatricsUniversity of Michigan, Ann Arbor, Michigan, USA
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21
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Du J, Cao X, Diao J, Zhang Q, Peng C, Li J, Xiao X. Neonatal overfeeding in mice aggravates the development of methionine and choline-deficient diet-induced steatohepatitis in adulthood. Genes Dis 2018; 6:68-77. [PMID: 30906835 PMCID: PMC6411625 DOI: 10.1016/j.gendis.2017.12.008] [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: 11/28/2017] [Accepted: 12/23/2017] [Indexed: 12/01/2022] Open
Abstract
Overfeeding in early life is associated with obesity and insulin resistance in adulthood. In the present study, a well-characterized mouse model was used to investigate whether neonatal overfeeding increases susceptibility to the development of non-alcoholic steatohepatitis (NASH) following feeding with a methionine and choline- deficient (MCD) diet. Neonatal overfeeding was induced by adjusting litters to 3 pups per dam (small litter size, SL) in contrast to 10 pups per dam as control (normal litter size, NL). At 11 weeks of age, mice were fed with standard (S) or a methionine and choline-deficient (MCD) diet for 4 weeks. Glucose tolerance tests, tissue staining with haematoxylin and eosin, oil-red O and immunohistochemistry for F4/80, reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blotting were performed. Compared with NL mice, SL mice exhibited higher body weight gain from 2 weeks of age throughout adulthood, and more profound glucose intolerance as adults. Sterol regulatory element-binding protein 1c and fatty acid synthase mRNA expression levels in liver were upregulated in SL mice at 3 weeks of age. MCD diet induced typical NASH, especially in SL-MCD mice, evidenced by marked fat accumulation, macrovescular steatosis, ballooned hepatocytes, inflammatory cells infiltration and tumour necrosis factor-α mRNA upregulation in the liver, as well as increased alanine aminotransferase and aspartate aminotransferase levels in the serum. There were no significant differences in liver fibrosis in all groups. Overfeeding during early life exhibited effect with administration of MCD diet in inducing adverse effects on the metabolic function and in promoting the progression of NASH in mice, possibly mediated through dysregulated lipid metabolism in hepatocytes and aggravated hepatic inflammation.
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Affiliation(s)
- Juan Du
- Laboratory of Lipid & Glucose Metabolism, PR China
| | - Xuemei Cao
- Laboratory of Lipid & Glucose Metabolism, PR China
| | - Junlin Diao
- Laboratory of Lipid & Glucose Metabolism, PR China
| | - Qijuan Zhang
- Department of Clinical Nutrition, The First Affiliated Hospital of Chongqing Medical University, PR China
| | - Chuan Peng
- Laboratory of Lipid & Glucose Metabolism, PR China
| | - Jibin Li
- School of Public Health and Management, Chongqing Medical University, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing, 400016, PR China
| | - Xiaoqiu Xiao
- Laboratory of Lipid & Glucose Metabolism, PR China
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22
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Effects of postnatal overfeeding and fish oil diet on energy expenditure in rats. Pediatr Res 2018; 83:156-163. [PMID: 28846671 DOI: 10.1038/pr.2017.207] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 08/08/2017] [Indexed: 12/17/2022]
Abstract
BackgroudEarly life nutrition may have a role in the regulation of metabolism in adulthood. The present study aimed to evaluate the effects of postnatal overfeeding and a postweaning fish oil diet on energy expenditure.MethodsOn postnatal day 3, rat litters were adjusted to a litter size of three (small litters, SLs) or ten (normal litters, NLs). After weaning, SLs were fed the standard diet or a fish oil diet enriched with polyunsaturated fatty acids (SL-FOs) for 10 weeks. The metabolic parameters of rats were monitored using the TSE LabMaster at postnatal week 3 (W3) and postnatal week 13 (W13).ResultsAt W3, the O2 consumption and heat production in SLs were lower than those in NLs, while the respiratory exchange ratio (RER) was higher than NLs. SLs showed obesity, dyslipidemia, and impaired glucose tolerance at W13. The postweaning fish oil diet in SLs not only increased O2 consumption, CO2 production, heat production, and reduced the RER but it also reduced weight gain, serum triglycerides, and improved glucose tolerance at W13.ConclusionPostnatal overfeeding can decrease the level of body energy expenditure and induce obesity, but a fish oil diet can increase the energy expenditure and prevent the development of metabolic dysregulation in adults.
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23
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De Luca SN, Ziko I, Dhuna K, Sominsky L, Tolcos M, Stokes L, Spencer SJ. Neonatal overfeeding by small-litter rearing sensitises hippocampal microglial responses to immune challenge: Reversal with neonatal repeated injections of saline or minocycline. J Neuroendocrinol 2017; 29. [PMID: 28983991 DOI: 10.1111/jne.12540] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/22/2017] [Accepted: 10/01/2017] [Indexed: 01/08/2023]
Abstract
The early-life period is extremely vulnerable to programming effects from the environment, many of which persist into adulthood. We have previously demonstrated that adult rats overfed as neonates have hypothalamic microglia that are hyper-responsive to an immune challenge, as well as hippocampal microglia that respond less efficiently to learning. We therefore hypothesised that neonatal overfeeding would alter the ability of hippocampal microglia to respond to an immune challenge with lipopolysaccharide (LPS) and that concomitant minocycline, a tetracycline antibiotic that suppresses microglial activity, could restore these responses. We induced neonatal overfeeding by manipulating the litter sizes in which Wistar rat pups were raised, so the pups were suckled in litters of four (neonatally overfed) or 12 (control-fed). We then examined the hippocampal microglial profiles 24 hour after an immune challenge with LPS and found that the neonatally overfed rats had dramatically increased microglial numbers in the hippocampus after immune challenge compared to control-fed rats. Attempts to reverse these effects with minocycline revealed repeated that neonatal injections, whether with minocycline or with saline, markedly suppressed microglial number and density throughout the hippocampus and abolished the difference between the groups in their responses to LPS. These data suggest that neonatal overfeeding not only can have lasting effects on hippocampal immune responses, but also that neonatal exposure to a protocol of repeated injections, irrespective of treatment, has a pronounced long-term impact, highlighting the importance of considering these effects when interpreting experimental data.
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Affiliation(s)
- S N De Luca
- School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
| | - I Ziko
- School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
| | - K Dhuna
- School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
| | - L Sominsky
- School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
| | - M Tolcos
- School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
| | - L Stokes
- School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich, UK
| | - S J Spencer
- School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
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24
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Maternal low intensity physical exercise prevents obesity in offspring rats exposed to early overnutrition. Sci Rep 2017; 7:7634. [PMID: 28794439 PMCID: PMC5550501 DOI: 10.1038/s41598-017-07395-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 06/27/2017] [Indexed: 01/02/2023] Open
Abstract
Low intensity exercise during pregnancy and lactation may create a protective effect against the development of obesity in offspring exposed to overnutrition in early life. To test these hypotheses, pregnant rats were randomly assigned into 2 groups: Sedentary and Exercised, low intensity, on a rodent treadmill at 30% VO2Max /30-minute/session/3x/week throughout pregnancy and the lactation. Male offspring were raised in small litters (SL, 3 pups/dam) and normal litters (NL, 9 pups/dam) as models of early overnutrition and normal feed, respectively. Exercised mothers showed low mesenteric fat pad stores and fasting glucose and improved glucose-insulin tolerance, VO2max during lactation and sympathetic activity. Moreover, the breast milk contained elevated levels of insulin. In addition, SL of sedentary mothers presented metabolic dysfunction and glucose and insulin intolerance and were hyperglycemic and hyperinsulinemic in adulthood. SL of exercised mothers showed lower fat tissue accretion and improvements in glucose tolerance, insulin sensitivity, insulinemia and glycemia. The results suggest that maternal exercise during the perinatal period can have a possible reprogramming effect to prevent metabolic dysfunction in adult rat offspring exposed to early overnutrition, which may be associated with the improvement in maternal health caused by exercise.
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25
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Schwartz MW, Seeley RJ, Zeltser LM, Drewnowski A, Ravussin E, Redman LM, Leibel RL. Obesity Pathogenesis: An Endocrine Society Scientific Statement. Endocr Rev 2017; 38:267-296. [PMID: 28898979 PMCID: PMC5546881 DOI: 10.1210/er.2017-00111] [Citation(s) in RCA: 376] [Impact Index Per Article: 53.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 05/12/2017] [Indexed: 02/07/2023]
Abstract
Obesity is among the most common and costly chronic disorders worldwide. Estimates suggest that in the United States obesity affects one-third of adults, accounts for up to one-third of total mortality, is concentrated among lower income groups, and increasingly affects children as well as adults. A lack of effective options for long-term weight reduction magnifies the enormity of this problem; individuals who successfully complete behavioral and dietary weight-loss programs eventually regain most of the lost weight. We included evidence from basic science, clinical, and epidemiological literature to assess current knowledge regarding mechanisms underlying excess body-fat accumulation, the biological defense of excess fat mass, and the tendency for lost weight to be regained. A major area of emphasis is the science of energy homeostasis, the biological process that maintains weight stability by actively matching energy intake to energy expenditure over time. Growing evidence suggests that obesity is a disorder of the energy homeostasis system, rather than simply arising from the passive accumulation of excess weight. We need to elucidate the mechanisms underlying this "upward setting" or "resetting" of the defended level of body-fat mass, whether inherited or acquired. The ongoing study of how genetic, developmental, and environmental forces affect the energy homeostasis system will help us better understand these mechanisms and are therefore a major focus of this statement. The scientific goal is to elucidate obesity pathogenesis so as to better inform treatment, public policy, advocacy, and awareness of obesity in ways that ultimately diminish its public health and economic consequences.
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Affiliation(s)
| | - Randy J Seeley
- Department of Surgery, University of Michigan, Ann Arbor, Michigan 48109
| | - Lori M Zeltser
- Naomi Berrie Diabetes Center and Department of Pathology and Cell Biology, Columbia University, New York, New York 10032
| | - Adam Drewnowski
- Center for Public Health Nutrition, University of Washington, Seattle, Washington 98195
| | - Eric Ravussin
- John S. McIlhenny Skeletal Muscle Physiology Laboratory, Pennington Biomedical Research Center, Baton Rouge, Louisiana 70808
| | - Leanne M Redman
- John S. McIlhenny Skeletal Muscle Physiology Laboratory, Pennington Biomedical Research Center, Baton Rouge, Louisiana 70808
| | - Rudolph L Leibel
- Naomi Berrie Diabetes Center and Department of Pathology and Cell Biology, Columbia University, New York, New York 10032.,Division of Molecular Genetics, Department of Pediatrics, Columbia University, New York, New York 10032
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26
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Abstract
Reduced insulin-like growth factor 1/insulin signaling (IIS) has been linked to extended longevity in species ranging from yeast to mammals. In mammals, this is exemplified in Ames dwarf (Prop1df/df) mice, which have a 40%-60% increase in longevity (males and females, respectively) due to their recessive Prop1 loss-of-function mutation that results in lack of growth hormone (GH), thyroid-stimulating hormone and prolactin. Our laboratory has previously shown that Ames dwarf mice have functionally unique white adipose tissue (WAT) that improves, rather than impairs, insulin sensitivity. Because GH and thyroid hormone are integral to adipose tissue development and function, we hypothesized that brown adipose tissue (BAT) in Ames dwarf mice may also be functionally unique and/or enhanced. Here, we elaborate on our recent findings, which demonstrate that BAT is functionally enhanced in Ames dwarf mice, and suggest that BAT removal in these mice results in utilization of WAT depots as an energy source. We also discuss how our findings compare to those in other long-lived dwarf mice with altered IIS, which unlike Ames dwarf mice, are essentially euthyroid. Lastly, we provide some insights into the implications of these findings and discuss some of the necessary future work in this area.
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Affiliation(s)
- Justin Darcy
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, Illinois, USA
- Department of Medical Microbiology, Immunology and Cell Biology, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Andrzej Bartke
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, Illinois, USA
- Department of Medical Microbiology, Immunology and Cell Biology, Southern Illinois University School of Medicine, Springfield, Illinois, USA
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27
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Conceição EPS, Moura EG, Oliveira E, Guarda DS, Figueiredo MS, Quitete FT, Calvino C, Miranda RA, Mathias PCF, Manhães AC, Lisboa PC. Dietary calcium supplementation in adult rats reverts brown adipose tissue dysfunction programmed by postnatal early overfeeding. J Nutr Biochem 2017; 39:117-125. [DOI: 10.1016/j.jnutbio.2016.09.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 07/05/2016] [Accepted: 09/02/2016] [Indexed: 11/28/2022]
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Darcy J, McFadden S, Fang Y, Huber JA, Zhang C, Sun LY, Bartke A. Brown Adipose Tissue Function Is Enhanced in Long-Lived, Male Ames Dwarf Mice. Endocrinology 2016; 157:4744-4753. [PMID: 27740871 PMCID: PMC5133358 DOI: 10.1210/en.2016-1593] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Ames dwarf mice (Prop1df/df) are long-lived due to a loss of function mutation, resulting in deficiency of GH, TSH, and prolactin. Along with a marked extension of longevity, Ames dwarf mice have improved energy metabolism as measured by an increase in their oxygen consumption and heat production, as well as a decrease in their respiratory quotient. Along with alterations in energy metabolism, Ames dwarf mice have a lower core body temperature. Moreover, Ames dwarf mice have functionally altered epididymal white adipose tissue (WAT) that improves, rather than impairs, their insulin sensitivity due to a shift from pro- to anti-inflammatory cytokine secretion. Given the unique phenotype of Ames dwarf epididymal WAT, their improved energy metabolism, and lower core body temperature, we hypothesized that Ames dwarf brown adipose tissue (BAT) may function differently from that of their normal littermates. Here we use histology and RT-PCR to demonstrate that Ames dwarf mice have enhanced BAT function. We also use interscapular BAT removal to demonstrate that BAT is necessary for Ames dwarf energy metabolism and thermogenesis, whereas it is less important for their normal littermates. Furthermore, we show that Ames dwarf mice are able to compensate for loss of interscapular BAT by using their WAT depots as an energy source. These findings demonstrate enhanced BAT function in animals with GH and thyroid hormone deficiencies, chronic reduction of body temperature, and remarkably extended longevity.
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Affiliation(s)
- Justin Darcy
- Department of Internal Medicine (J.D., S.M., Y.F., J.A.H., C.Z., A.B.), Geriatric Research, and Department of Medical Microbiology, Immunology, and Cell Biology (J.D., A.B.), Southern Illinois University School of Medicine, Springfield, Illinois 62702; Institute of Cardiovascular Disease (C.Z.), Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang 421001, People's Republic of China; and Department of Biology (L.Y.S.), University of Alabama at Birmingham, Birmingham, Alabama 35294
| | - Samuel McFadden
- Department of Internal Medicine (J.D., S.M., Y.F., J.A.H., C.Z., A.B.), Geriatric Research, and Department of Medical Microbiology, Immunology, and Cell Biology (J.D., A.B.), Southern Illinois University School of Medicine, Springfield, Illinois 62702; Institute of Cardiovascular Disease (C.Z.), Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang 421001, People's Republic of China; and Department of Biology (L.Y.S.), University of Alabama at Birmingham, Birmingham, Alabama 35294
| | - Yimin Fang
- Department of Internal Medicine (J.D., S.M., Y.F., J.A.H., C.Z., A.B.), Geriatric Research, and Department of Medical Microbiology, Immunology, and Cell Biology (J.D., A.B.), Southern Illinois University School of Medicine, Springfield, Illinois 62702; Institute of Cardiovascular Disease (C.Z.), Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang 421001, People's Republic of China; and Department of Biology (L.Y.S.), University of Alabama at Birmingham, Birmingham, Alabama 35294
| | - Joshua A Huber
- Department of Internal Medicine (J.D., S.M., Y.F., J.A.H., C.Z., A.B.), Geriatric Research, and Department of Medical Microbiology, Immunology, and Cell Biology (J.D., A.B.), Southern Illinois University School of Medicine, Springfield, Illinois 62702; Institute of Cardiovascular Disease (C.Z.), Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang 421001, People's Republic of China; and Department of Biology (L.Y.S.), University of Alabama at Birmingham, Birmingham, Alabama 35294
| | - Chi Zhang
- Department of Internal Medicine (J.D., S.M., Y.F., J.A.H., C.Z., A.B.), Geriatric Research, and Department of Medical Microbiology, Immunology, and Cell Biology (J.D., A.B.), Southern Illinois University School of Medicine, Springfield, Illinois 62702; Institute of Cardiovascular Disease (C.Z.), Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang 421001, People's Republic of China; and Department of Biology (L.Y.S.), University of Alabama at Birmingham, Birmingham, Alabama 35294
| | - Liou Y Sun
- Department of Internal Medicine (J.D., S.M., Y.F., J.A.H., C.Z., A.B.), Geriatric Research, and Department of Medical Microbiology, Immunology, and Cell Biology (J.D., A.B.), Southern Illinois University School of Medicine, Springfield, Illinois 62702; Institute of Cardiovascular Disease (C.Z.), Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang 421001, People's Republic of China; and Department of Biology (L.Y.S.), University of Alabama at Birmingham, Birmingham, Alabama 35294
| | - Andrzej Bartke
- Department of Internal Medicine (J.D., S.M., Y.F., J.A.H., C.Z., A.B.), Geriatric Research, and Department of Medical Microbiology, Immunology, and Cell Biology (J.D., A.B.), Southern Illinois University School of Medicine, Springfield, Illinois 62702; Institute of Cardiovascular Disease (C.Z.), Key Laboratory for Arteriosclerology of Hunan Province, University of South China, Hengyang 421001, People's Republic of China; and Department of Biology (L.Y.S.), University of Alabama at Birmingham, Birmingham, Alabama 35294
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29
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Liang X, Yang Q, Zhang L, Maricelli JW, Rodgers BD, Zhu MJ, Du M. Maternal high-fat diet during lactation impairs thermogenic function of brown adipose tissue in offspring mice. Sci Rep 2016; 6:34345. [PMID: 27686741 PMCID: PMC5043374 DOI: 10.1038/srep34345] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 09/07/2016] [Indexed: 02/06/2023] Open
Abstract
Maternal obesity and high-fat diet (HFD) predisposes offspring to obesity and metabolic diseases. Due to uncoupling, brown adipose tissue (BAT) dissipates energy via heat generation, mitigating obesity and diabetes. The lactation stage is a manageable period for improving the health of offspring of obese mothers, but the impact of maternal HFD during lactation on offspring BAT function is unknown. To determine, female mice were fed either a control or HFD during lactation. At weaning, HFD offspring gained more body weight and had greater body fat mass compared to the control, and these differences maintained into adulthood, which correlated with glucose intolerance and insulin resistance in HFD offspring. Adaptive thermogenesis of BAT was impaired in HFD offspring at weaning. In adulthood, HFD offspring BAT had lower Ucp1 expression and thermogenic activity. Mechanistically, maternal HFD feeding during lactation elevated peripheral serotonin, which decreased the sensitivity of BAT to sympathetic β3-adrenergic signaling. Importantly, early postnatal metformin administration decreased serotonin concentration and ameliorated the impairment of offspring BAT due to maternal HFD. Our data suggest that attenuation of BAT thermogenic function may be a key mechanism linking maternal HFD during lactation to persisted metabolic disorder in the offspring.
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Affiliation(s)
- Xingwei Liang
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA.,State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi High Education Laboratory for Animal Reproduction and Biotechnology, Guangxi University, Nanning, Guangxi 530004, China
| | - Qiyuan Yang
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
| | - Lupei Zhang
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA.,Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Joseph W Maricelli
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
| | - Buel D Rodgers
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
| | - Mei-Jun Zhu
- School of Food Science, Washington State University, Pullman, WA 99164, USA
| | - Min Du
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
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30
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Thoonen R, Hindle AG, Scherrer-Crosbie M. Brown adipose tissue: The heat is on the heart. Am J Physiol Heart Circ Physiol 2016; 310:H1592-605. [PMID: 27084389 DOI: 10.1152/ajpheart.00698.2015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 04/13/2016] [Indexed: 12/17/2022]
Abstract
The study of brown adipose tissue (BAT) has gained significant scientific interest since the discovery of functional BAT in adult humans. The thermogenic properties of BAT are well recognized; however, data generated in the last decade in both rodents and humans reveal therapeutic potential for BAT against metabolic disorders and obesity. Here we review the current literature in light of a potential role for BAT in beneficially mediating cardiovascular health. We focus mainly on BAT's actions in obesity, vascular tone, and glucose and lipid metabolism. Furthermore, we discuss the recently discovered endocrine factors that have a potential beneficial role in cardiovascular health. These BAT-secreted factors may have a favorable effect against cardiovascular risk either through their metabolic role or by directly affecting the heart.
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Affiliation(s)
- Robrecht Thoonen
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, Massachusetts
| | - Allyson G Hindle
- Department of Anesthesia and Critical Pain Medicine, Massachusetts General Hospital, Boston, Massachusetts; and
| | - Marielle Scherrer-Crosbie
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, Massachusetts; Cardiac Ultrasound Laboratory, Massachusetts General Hospital, Boston, Massachusetts
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31
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Abstract
Bisphenol A (BPA) is used extensively in the world and is present in a diverse range of manufactured articles including dental resins, polycarbonate plastics, and the inner coating of food cans. It is a high volume chemical, with global production at 3.6 × 10(9) kg per year. BPA was identified as a high priority for assessment of human health risk because it was considered to present greatest potential for human exposure. Most studies of the health effects of BPA have focused on endocrine disruption leading to reproductive toxicity, but it displays additional side effects, including liver damage, disrupted pancreatic β-cell function, thyroid hormone disruption, and obesity-promoting effects. In this article, we reviewed specifically on the effects of BPA in energy balance.
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Affiliation(s)
- L Le Corre
- a Laboratoire de Toxicologie Alimentaire, INSERM U866, NUTOX, Derttech Packtox , University of Burgundy , Dijon , France
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32
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Abstract
Suboptimal maternal nutrition exerts lasting impacts on obesity risk in offspring, but the direction of the effect is determined by the timing of exposure. While maternal undernutrition in early pregnancy is associated with increased body mass index, in later pregnancy it can be protective. The importance of the timing of maternal undernutrition is also observed in rodents, however, many of the processes that occur in the last trimester of human gestation are delayed to the postnatal period. Neonatal leptin administration exerts lasting impacts on susceptibility to obesity in rodents. Although leptin can influence the formation of hypothalamic circuits involved in homeostatic control of feeding during the postnatal period, these effects are too late to account for its ability to reverse adverse metabolic programming due to early gestational exposure to maternal undernutrition. This review presents an alternative framework for understanding the effects of neonatal leptin through influences on developing thermoregulatory circuits.
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33
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Reid DT, Eller LK, Nettleton JE, Reimer RA. Postnatal prebiotic fibre intake mitigates some detrimental metabolic outcomes of early overnutrition in rats. Eur J Nutr 2015; 55:2399-2409. [PMID: 26407845 DOI: 10.1007/s00394-015-1047-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 09/14/2015] [Indexed: 11/29/2022]
Abstract
PURPOSE Overnutrition during early development has been linked to metabolic disease and obesity in adulthood. Interventions to ameliorate this metabolic malprogramming are needed. Our objective was to determine whether prebiotic fibre would reduce weight gain and improve satiety hormone profiles in rats overnourished during the suckling period. METHODS Male Sprague-Dawley rats reared in small litter (SL 3 pups) or normal litter (NL 12 pups) were randomized at weaning to AIN-93 (control) or a 10 % oligofructose (OFS) diet for 16 weeks. Body composition, an oral glucose tolerance test for glucose and gut hormones, and gut microbiota were assessed. RESULTS At weaning, body weight was higher in SL than in NL rats (P < 0.03). At 19 weeks, body weight was lower with OFS than control (P < 0.04). There was a diet × litter size interaction wherein OFS in SL rats reduced body fat (%) to levels seen in NL rats (P < 0.05). OFS attenuated the glucose response in SL but not in NL rats (P < 0.015). Independent of litter size, OFS decreased total AUC for glucose-dependent insulinotropic polypeptide (P < 0.002) and increased total AUC for peptide YY (P < 0.01) and glucagon-like peptide-1 (P < 0.04) when compared to control. OFS, not litter size, played the predominant role in altering gut microbiota which included increased bifidobacteria and Akkermansia muciniphila with OFS. CONCLUSIONS Postnatal consumption of OFS by rats raised in SL was able to attenuate body fat and glycaemia to levels seen in NL rats. OFS appears to influence satiety hormone and gut microbiota response similarly in overnourished and control rats.
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Affiliation(s)
- Danielle T Reid
- Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada
| | - Lindsay K Eller
- Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada.,Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 4N1, Canada
| | - Jodi E Nettleton
- Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada
| | - Raylene A Reimer
- Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada. .,Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, AB, T2N 4N1, Canada.
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34
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Reynolds CM, Gray C, Li M, Segovia SA, Vickers MH. Early Life Nutrition and Energy Balance Disorders in Offspring in Later Life. Nutrients 2015; 7:8090-111. [PMID: 26402696 PMCID: PMC4586579 DOI: 10.3390/nu7095384] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 08/31/2015] [Accepted: 09/11/2015] [Indexed: 02/07/2023] Open
Abstract
The global pandemic of obesity and type 2 diabetes is often causally linked to changes in diet and lifestyle; namely increased intake of calorically dense foods and concomitant reductions in physical activity. Epidemiological studies in humans and controlled animal intervention studies have now shown that nutritional programming in early periods of life is a phenomenon that affects metabolic and physiological functions throughout life. This link is conceptualised as the developmental programming hypothesis whereby environmental influences during critical periods of developmental plasticity can elicit lifelong effects on the health and well-being of the offspring. The mechanisms by which early environmental insults can have long-term effects on offspring remain poorly defined. However there is evidence from intervention studies which indicate altered wiring of the hypothalamic circuits that regulate energy balance and epigenetic effects including altered DNA methylation of key adipokines including leptin. Studies that elucidate the mechanisms behind these associations will have a positive impact on the health of future populations and adopting a life course perspective will allow identification of phenotype and markers of risk earlier, with the possibility of nutritional and other lifestyle interventions that have obvious implications for prevention of non-communicable diseases.
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Affiliation(s)
- Clare M Reynolds
- Liggins Institute and Gravida: National Centre for Growth and Development, University of Auckland, Auckland 1142, New Zealand.
| | - Clint Gray
- Liggins Institute and Gravida: National Centre for Growth and Development, University of Auckland, Auckland 1142, New Zealand.
| | - Minglan Li
- Liggins Institute and Gravida: National Centre for Growth and Development, University of Auckland, Auckland 1142, New Zealand.
| | - Stephanie A Segovia
- Liggins Institute and Gravida: National Centre for Growth and Development, University of Auckland, Auckland 1142, New Zealand.
| | - Mark H Vickers
- Liggins Institute and Gravida: National Centre for Growth and Development, University of Auckland, Auckland 1142, New Zealand.
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35
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Lisboa PC, Conceição EPS, de Oliveira E, Moura EG. Postnatal overnutrition programs the thyroid hormone metabolism and function in adulthood. J Endocrinol 2015. [PMID: 26203167 DOI: 10.1530/joe-15-0237] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Early overnutrition (EO) during lactation leads to obesity, leptin resistance and lower thyroid hormone (TH) levels during adulthood. To better understand the biological significance of this thyroid hypofunction, we studied the long-term effects of postnatal EO on both the function of hypothalamic-pituitary-thyroid (HPT) axis and the metabolism and action of TH. To induce EO, the litter size was reduced to three pups per litter (small litter (SL) group) on the third day of lactation. In the controls (normal litter group), litter size was adjusted to 10 pups per litter. Rats were killed at PN180. TRH content and in vitro TSH were evaluated. Iodothyronine deiodinase (D1 and D2) activities were measured in different tissues. Mitochondrial α-glycerol-3-phosphate dehydrogenase (mGPD), uncoupling protein 1 (UCP1) and TH receptor (TRβ1) were evaluated to assess TH action. The SL group presented lower TRH, intra-pituitary and released TSH levels, despite unchanged plasma TSH. They presented lower D1 activity in thyroid, muscle and white adipose tissue (WAT) and higher D2 activity in the hypothalamus, pituitary, brown adipose tissue (BAT) and WAT, which confirmed the hypothyroidism. UCP1 in BAT and TRβ1 in WAT were decreased, which can contribute to a lower catabolic status. Despite the lower TH, the D2 activity in the thyroid, heart and testes was unchanged. Hepatic D1, mGPD and TRβ1 were also unchanged in SL rats, suggesting that the TH conversion and action were preserved in the liver, even with lower TH. Thus, this model indicates that postnatal EO changes thyroid function in adult life in a tissue-specific way, which can help in the understanding of obesogenesis.
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Affiliation(s)
- Patricia C Lisboa
- Laboratory of Endocrine PhysiologyDepartment of Physiological Sciences, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, Avenida 28 de setembro, 87, Rio de Janeiro, RJ 20551-031, Brazil
| | - Ellen P S Conceição
- Laboratory of Endocrine PhysiologyDepartment of Physiological Sciences, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, Avenida 28 de setembro, 87, Rio de Janeiro, RJ 20551-031, Brazil
| | - Elaine de Oliveira
- Laboratory of Endocrine PhysiologyDepartment of Physiological Sciences, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, Avenida 28 de setembro, 87, Rio de Janeiro, RJ 20551-031, Brazil
| | - Egberto G Moura
- Laboratory of Endocrine PhysiologyDepartment of Physiological Sciences, Roberto Alcantara Gomes Biology Institute, State University of Rio de Janeiro, Avenida 28 de setembro, 87, Rio de Janeiro, RJ 20551-031, Brazil
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Wang H, Ji J, Yu Y, Wei X, Chai S, Liu D, Huang D, Li Q, Dong Z, Xiao X. Neonatal Overfeeding in Female Mice Predisposes the Development of Obesity in their Male Offspring via Altered Central Leptin Signalling. J Neuroendocrinol 2015; 27:600-8. [PMID: 25855235 DOI: 10.1111/jne.12281] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Revised: 03/15/2015] [Accepted: 03/31/2015] [Indexed: 02/01/2023]
Abstract
The prevalence of obesity among child-bearing women has increased significantly. The adverse consequences of maternal obesity on the descendants have been well accepted, although few studies have examined the underlying mechanisms. We investigated whether neonatal overfeeding in female mice alters metabolic phenotypes in the offspring and whether hypothalamic leptin signalling is involved. Neonatal overfeeding was induced by reducing the litter size to three pups per litter, in contrast to normal litter size of 10 pups per litter. Normal and neonatally overfed female mice were bred with normal male mice, and offspring of overfeeding mothers (OOM) and control mothers (OCM) were generated. We examined body weight, daily food intake, leptin responsiveness and the number of positive neurones for phosphorylated-signal transducer and activator of transcription 3 (pSTAT3) along with neuropeptide Y (NPY) in the arcuate nucleus of the hypothalamus (ARH) and NPY in the nucleus tractus solitarius (NTS) of the brain stem. The body weight and daily food intake of OOM were significantly higher than those of OCM. Leptin significantly reduced food intake and increased the number of pSTAT3 positive neurones in the ARH of OCM mice, whereas no significant changes in food intake and pSTAT3 neurones were found in leptin-treated OOM mice. The number of NPY neurones in the ARH and NTS of the OOM mice was significantly higher than that of OCM mice. The results of the present study indicate that the obese phenotype from mothers can be passed onto the subsequent generation, which is possibly associated with hypothalamic leptin resistance.
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Affiliation(s)
- H Wang
- Laboratory of Lipid & Glucose Metabolism, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - J Ji
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, China
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Y Yu
- Laboratory of Lipid & Glucose Metabolism, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - X Wei
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - S Chai
- Laboratory of Lipid & Glucose Metabolism, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - D Liu
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - D Huang
- Ministry of Education Key Laboratory of Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, China
| | - Q Li
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Z Dong
- Department of Pharmacology, School of Pharmacy, Chongqing Medical University, Chongqing, China
| | - X Xiao
- Laboratory of Lipid & Glucose Metabolism, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Differential metabolism of brown adipose tissue in newborn rabbits in relation to position in the litter huddle. J Therm Biol 2015; 51:33-41. [DOI: 10.1016/j.jtherbio.2015.03.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 03/02/2015] [Accepted: 03/02/2015] [Indexed: 12/20/2022]
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Fischer SV, Capriglioni Cancian CR, Montes EG, de Carvalho Leite N, Grassiolli S. Swimming training prevents metabolic imprinting induced by hypernutrition during lactation. Clin Nutr ESPEN 2015; 10:e13-e20. [PMID: 28531442 DOI: 10.1016/j.clnme.2014.10.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 08/27/2014] [Accepted: 10/29/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND & AIMS Reduction in litter size during lactation induces hypernutrition of the offspring culminating with altered metabolic programming during adult life. Overnourished rats present alterations in the endocrine pancreas and major predisposition to the development of type 2 diabetes. Our study evaluated the impact of swimming training on insulin secretion control in overnourished rats. METHODS At postnatal day 3 male rat pup litters were redistributed randomly into Small Litters (SL, 3 pups) or Normal Litters (NL, 9 pups) to induce early overfeeding during lactation. Both groups were subjected to swimming training (3 times/week/30 min) post-weaning (21 days) for 72 days. At 92 days of life pancreatic islets were isolated using collagenase technique and incubated with glucose in the presence or absence of acetylcholine (Ach, 0.1-1000 μM) or glucagon-like peptide 1 (GLP1, 10 nM). Adipose tissue depots (white and brown) and endocrine pancreas samples were examined by histological analysis. Food intake and body weight were measured. Blood biochemical parameters were also evaluated. RESULTS Swimming training prevented metabolic program alteration by hypernutrition during lactation. Exercise reduced obesity and hyperglycemia in overnourished rats. Pancreatic islets isolated from overnourished rats showed a reduction in glucose-induced insulin secretion and cholinergic responses while the insulinotropic action of GLP1 was increased. Physical training effectively restored glucose-induced insulin secretion and GLP1-stimulated action in pancreatic islets from overnourished rats. However, swimming training did not correct the weak cholinergic response in pancreatic islets isolated from overnourished rats. CONCLUSIONS Swimming training avoids obesity development, corrects glucose-induced insulin secretion, as well as, GLP1 insulinotropic response in overnourished rats.
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Affiliation(s)
- Stefani Valeria Fischer
- Department of General Biology, State University of Ponta Grossa, Ponta Grossa, Parana, Brazil.
| | | | | | - Nayara de Carvalho Leite
- Department of Structural and Functional Biology, Institute of Biology, UNICAMP, Campinas, São Paulo, Brazil
| | - Sabrina Grassiolli
- Department of General Biology, State University of Ponta Grossa, Ponta Grossa, Parana, Brazil
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Cai G, Dinan T, Barwood JM, De Luca SN, Soch A, Ziko I, Chan SMH, Zeng XY, Li S, Molero J, Spencer SJ. Neonatal overfeeding attenuates acute central pro-inflammatory effects of short-term high fat diet. Front Neurosci 2015; 8:446. [PMID: 25628527 PMCID: PMC4292443 DOI: 10.3389/fnins.2014.00446] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 12/19/2014] [Indexed: 12/14/2022] Open
Abstract
Neonatal obesity predisposes individuals to obesity throughout life. In rats, neonatal overfeeding also leads to early accelerated weight gain that persists into adulthood. The phenotype is associated with dysfunction in a number of systems including paraventricular nucleus of the hypothalamus (PVN) responses to psychological and immune stressors. However, in many cases weight gain in neonatally overfed rats stabilizes in early adulthood so the animal does not become more obese as it ages. Here we examined if neonatal overfeeding by suckling rats in small litters predisposes them to exacerbated metabolic and central inflammatory disturbances if they are also given a high fat diet in later life. In adulthood we gave the rats normal chow, 3 days, or 3 weeks high fat diet (45% kcal from fat) and measured peripheral indices of metabolic disturbance. We also investigated hypothalamic microglial changes, as an index of central inflammation, as well as PVN responses to lipopolysaccharide (LPS). Surprisingly, neonatal overfeeding did not predispose rats to the metabolic effects of a high fat diet. Weight changes and glucose metabolism were unaffected by the early life experience. However, short term (3 day) high fat diet was associated with more microglia in the hypothalamus and a markedly exacerbated PVN response to LPS in control rats; effects not seen in the neonatally overfed. Our findings indicate neonatally overfed animals are not more susceptible to the adverse metabolic effects of a short-term high fat diet but may be less able to respond to the central effects.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Sarah J. Spencer
- School of Health Sciences and Health Innovations Research Institute, RMIT UniversityMelbourne, VIC, Australia
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Devlin MJ. The “Skinny” on brown fat, obesity, and bone. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2014; 156 Suppl 59:98-115. [DOI: 10.1002/ajpa.22661] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Maureen J. Devlin
- Department of Anthropology; University of Michigan; Ann Arbor MI 48104
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Boersma GJ, Bale TL, Casanello P, Lara HE, Lucion AB, Suchecki D, Tamashiro KL. Long-term impact of early life events on physiology and behaviour. J Neuroendocrinol 2014; 26:587-602. [PMID: 24690036 DOI: 10.1111/jne.12153] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 03/14/2014] [Accepted: 03/25/2014] [Indexed: 01/12/2023]
Abstract
This review discusses the effects of stress and nutrition throughout development and summarises studies investigating how exposure to stress or alterations in nutrition during the pre-conception, prenatal and early postnatal periods can affect the long-term health of an individual. In general, the data presented here suggest that that anything signalling potential adverse conditions later in life, such as high levels of stress or low levels of food availability, will lead to alterations in the offspring, possibly of an epigenetic nature, preparing the offspring for these conditions later in life. However, when similar environmental conditions are not met in adulthood, these alterations may have maladaptive consequences, resulting in obesity and heightened stress sensitivity. The data also suggest that the mechanism underlying these adult phenotypes might be dependent on the type and the timing of exposure.
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Affiliation(s)
- G J Boersma
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Ojha S, Saroha V, Symonds ME, Budge H. Excess nutrient supply in early life and its later metabolic consequences. Clin Exp Pharmacol Physiol 2014; 40:817-23. [PMID: 23350968 DOI: 10.1111/1440-1681.12061] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 01/17/2013] [Accepted: 01/20/2013] [Indexed: 12/20/2022]
Abstract
Suboptimal nutrition in early life, both in utero and during infancy, is linked to increased risk of adult obesity and its associated adverse metabolic health problems. Excess nutrient supply during early life can lead to metabolic programming in the offspring. Such overnutrition can occur in the offspring of obese mothers, the offspring of mothers who gain excess weight during gestation, infants of diabetic mothers and infants who undergo rapid growth, particularly weight gain, during early infancy. Postnatal overnutrition is particularly detrimental for infants who are born small for gestational age, who are overfed to attain 'catch-up growth'. Potential mechanisms underlying metabolic programming that results from excess nutrition during early life include resetting of hypothalamic energy sensing and appetite regulation, altered adipose tissue insulin sensitivity and impaired brown adipose tissue function. More detailed understanding of the mechanisms involved in metabolic programming could enable the development of therapeutic strategies for ameliorating its ill effects. Research in this field could potentially identify optimal and appropriate preventative interventions for a burgeoning population at risk of increased mortality and morbidity from obesity and its concomitant metabolic conditions.
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Affiliation(s)
- Shalini Ojha
- The Early Life Nutrition Research Unit, Academic Division of Child Health, School of Clinical Sciences, University Hospital, The University of Nottingham, Nottingham, UK
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Valente A, Jamurtas AZ, Koutedakis Y, Flouris AD. Molecular pathways linking non-shivering thermogenesis and obesity: focusing on brown adipose tissue development. Biol Rev Camb Philos Soc 2014; 90:77-88. [DOI: 10.1111/brv.12099] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 02/07/2014] [Accepted: 02/07/2014] [Indexed: 12/15/2022]
Affiliation(s)
- Angelica Valente
- FAME Laboratory; Centre for Research and Technology Hellas; Karies Trikala 42100 Greece
- School of Physical Education and Exercise Sciences; University of Thessaly; Trikala 42100 Greece
| | - Athanasios Z. Jamurtas
- School of Physical Education and Exercise Sciences; University of Thessaly; Trikala 42100 Greece
| | - Yiannis Koutedakis
- School of Physical Education and Exercise Sciences; University of Thessaly; Trikala 42100 Greece
- Faculty of Education, Health and Wellbeing; University of Wolverhampton; Walsall WS13BD U.K
| | - Andreas D. Flouris
- FAME Laboratory; Centre for Research and Technology Hellas; Karies Trikala 42100 Greece
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Kjaergaard M, Nilsson C, Rosendal A, Nielsen MO, Raun K. Maternal chocolate and sucrose soft drink intake induces hepatic steatosis in rat offspring associated with altered lipid gene expression profile. Acta Physiol (Oxf) 2014; 210:142-53. [PMID: 23782871 DOI: 10.1111/apha.12138] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 03/01/2013] [Accepted: 06/13/2013] [Indexed: 12/11/2022]
Abstract
AIM According to the World Diabetes Foundation, there is an urgent need to investigate the impact of maternal health and nutrition during pregnancy to understand the background for the accelerating incidence of obesity and type 2 diabetes. In this study, we specifically concentrated on the role of overfeeding during different developmental periods. METHODS Sprague-Dawley rats were offered chow or high-fat/high-sucrose diet (chow plus chocolate and soft drink) during gestation and lactation. At birth, offspring were randomly cross-fostered within each dietary group into small and normal litter sizes until weaning, giving four dietary groups. RESULTS At postnatal day 1, offspring from high-fat/high-sucrose-fed dams were heavier and had increased hepatic triglycerides (TG), hepatic glycogen, blood glucose and plasma insulin compared with offspring from chow-fed dams. Hepatic genes involved in lipid oxidation, VLDL transport and insulin receptor were down-regulated, whereas FGF21 expression was up-regulated. Independent of postnatal litter size, offspring from high-fat/high-sucrose-fed dams aged 21 days had still increased hepatic TG and up-regulated FGF21 expression, while plasma insulin started to decrease. Litter size reduction in offspring from high-fat/high-sucrose-fed dams further increased body weight and adiposity, and up-regulated genes involved in hepatic mitochondrial lipid oxidation and VLDL transport compared with all other groups. Litter size reduction did not have any impact on body weight gain and adiposity in offspring born to chow-fed dams. CONCLUSION Our results suggest that supplementation of chocolate and soft drink during gestation and lactation contributes to early onset of hepatic steatosis associated with changes in hepatic gene expression and lipid handling.
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Affiliation(s)
- M. Kjaergaard
- Department of Type 2 Diabetes Pharmacology; Novo Nordisk A/S; Maaloev Denmark
- Department of Veterinary Clinical and Animal Sciences; Faculty of Health and Medical Sciences; University of Copenhagen; Frederiksberg Denmark
| | - C. Nilsson
- Uppsala University Innovation, Uppsala Science Park; Uppsala Sweden
| | - A. Rosendal
- Department of Assay Technology; Novo Nordisk A/S; Maaloev Denmark
| | - M. O. Nielsen
- Department of Veterinary Clinical and Animal Sciences; Faculty of Health and Medical Sciences; University of Copenhagen; Frederiksberg Denmark
| | - K. Raun
- Department of Type 2 Diabetes Pharmacology; Novo Nordisk A/S; Maaloev Denmark
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Lukaszewski MA, Eberlé D, Vieau D, Breton C. Nutritional manipulations in the perinatal period program adipose tissue in offspring. Am J Physiol Endocrinol Metab 2013; 305:E1195-207. [PMID: 24045869 DOI: 10.1152/ajpendo.00231.2013] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Epidemiological studies demonstrated initially that maternal undernutrition results in low birth weight with increased risk for long-lasting energy balance disorders. Maternal obesity and diabetes associated with high birth weight, excessive nutrition in neonates, and rapid catchup growth also increase the risk of adult-onset obesity. As stated by the Developmental Origin of Health and Disease concept, nutrient supply perturbations in the fetus or neonate result in long-term programming of individual body weight set point. Adipose tissue is a key fuel storage unit involved mainly in the maintenance of energy homeostasis. Studies in numerous animal models have demonstrated that the adipose tissue is the focus of developmental programming events in a sex- and depot-specific manner. In rodents, adipose tissue development is particularly active during the perinatal period, especially during the last week of gestation and during early postnatal life. In contrast to rodents, this process essentially takes place before birth in bigger mammals. Despite these different developmental time windows, altricial and precocial species share several mechanisms of adipose tissue programming. Offspring from malnourished dams present adipose tissue with a series of alterations: impaired glucose uptake, insulin and leptin resistance, low-grade inflammation, modified sympathetic activity with reduced noradrenergic innervations, and thermogenesis. These modifications reprogram adipose tissue metabolism by changing fat distribution and composition and by enhancing adipogenesis, predisposing the offspring to fat accumulation. Subtle adipose tissue circadian rhythm changes are also observed. Inappropriate hormone levels, modified tissue sensitivity (especially glucocorticoid system), and epigenetic mechanisms are key factors for adipose tissue programming during the perinatal period.
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Affiliation(s)
- Marie-Amélie Lukaszewski
- Unité Environnement Périnatal et Croissance, UPRES EA 4489, Equipe Dénutritions Maternelles Périnatales, Université Lille-Nord de France, Villeneuve d'Ascq, France
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Liu Z, Lim CY, Su MYF, Soh SLY, Shui G, Wenk MR, Grove KL, Radda GK, Han W, Xiao X. Neonatal overnutrition in mice exacerbates high-fat diet-induced metabolic perturbations. J Endocrinol 2013; 219:131-43. [PMID: 23959078 DOI: 10.1530/joe-13-0111] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Neonatal overnutrition results in accelerated development of high-fat diet (HFD)-induced metabolic defects in adulthood. To understand whether the increased susceptibility was associated with aggravated inflammation and dysregulated lipid metabolism, we studied metabolic changes and insulin signaling in a chronic postnatal overnutrition (CPO) mouse model. Male Swiss Webster pups were raised with either three pups per litter to induce CPO or ten pups per litter as control (CTR) and weaned to either low-fat diet (LFD) or HFD. All animals were killed on the postnatal day 150 (P150) except for a subset of mice killed on P15 for the measurement of stomach weight and milk composition. CPO mice exhibited accelerated body weight gain and increased body fat mass prior to weaning and the difference persisted into adulthood under conditions of both LFD and HFD. As adults, insulin signaling was more severely impaired in epididymal white adipose tissue (WAT) from HFD-fed CPO (CPO-HFD) mice. In addition, HFD-induced upregulation of pro-inflammatory cytokines was exaggerated in CPO-HFD mice. Consistent with greater inflammation, CPO-HFD mice showed more severe macrophage infiltration than HFD-fed CTR (CTR-HFD) mice. Furthermore, when compared with CTR-HFD mice, CPO-HFD mice exhibited reduced levels of several lipogenic enzymes in WAT and excess intramyocellular lipid accumulation. These data indicate that neonatal overnutrition accelerates the development of insulin resistance and exacerbates HFD-induced metabolic defects, possibly by worsening HFD-induced inflammatory response and impaired lipid metabolism.
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Affiliation(s)
- Zhiguo Liu
- Laboratory of Lipid and Glucose Metabolism, The First Affiliated Hospital of Chongqing Medical University, 1 Youyi Road, Yuzhong District, Chongqing 400016, People's Republic of China Laboratory of Metabolic Medicine, Singapore Bioimaging Consortium, Agency for Science Technology and Research (A*STAR), #02-02 Helios, 11 Biopolis Way, Singapore 138667, Singapore Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, 505 NW 185th Avenue, Beaverton, Oregon 97006, USA Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119275, Singapore
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Baker MS, Li G, Kohorst JJ, Waterland RA. Fetal growth restriction promotes physical inactivity and obesity in female mice. Int J Obes (Lond) 2013; 39:98-104. [PMID: 23924758 PMCID: PMC3872504 DOI: 10.1038/ijo.2013.146] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 07/10/2013] [Accepted: 07/20/2013] [Indexed: 01/11/2023]
Abstract
BACKGROUND Environmental exposures during critical periods of prenatal and early postnatal life affect the development of mammalian body weight regulatory mechanisms, influencing lifelong risk of obesity. The specific biological processes that mediate the persistence of such effects, however, remain poorly understood. OBJECTIVE The objectives of this study were to determine the developmental timing and physiological basis of the obesity-promoting effect previously reported in offspring of obese agouti viable yellow (A(vy)/a) mothers. DESIGN Newborn offspring of obese A(vy)/a and lean (a/a) mothers were cross-fostered shortly after birth to study separately the effects of in utero or suckling period exposure to A(vy)/a dams. Body composition, food intake, physical activity and energy expenditure were measured in offspring shortly after weaning and in adulthood. RESULTS Offspring of obese A(vy)/a dams paradoxically experienced fetal growth restriction, which was followed by adult-onset obesity specifically in females. Our main analyses focused on wild-type (a/a) offspring, because a subset of adult A(vy)/a offspring contracted a kidney disease resembling diabetic nephropathy. Detailed physiological characterization demonstrated that, both shortly after weaning and in adulthood, female wild-type mice born to A(vy)/a mothers are not hyperphagic but have reduced physical activity and energy expenditure. No such coordinated changes were detected in male offspring. Mediational regression analysis of our longitudinal data supported a causal pathway in which fetal growth restriction persistently reduces physical activity, leading to adult obesity. CONCLUSIONS Our data are consistent with several recent human epidemiological studies showing female-specific effects of perinatal nutritional restriction on later obesity, and provide the novel mechanistic insight that this may occur via permanent and sex-specific changes in one's inherent propensity for physical activity.
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Affiliation(s)
- M S Baker
- Department of Pediatrics, Baylor College of Medicine, USDA/ARS Children's Nutrition Research Center, Houston, TX, USA
| | - G Li
- Department of Pediatrics, Baylor College of Medicine, USDA/ARS Children's Nutrition Research Center, Houston, TX, USA
| | - J J Kohorst
- Department of Pediatrics, Baylor College of Medicine, USDA/ARS Children's Nutrition Research Center, Houston, TX, USA
| | - R A Waterland
- 1] Department of Pediatrics, Baylor College of Medicine, USDA/ARS Children's Nutrition Research Center, Houston, TX, USA [2] Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
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Li G, Kohorst JJ, Zhang W, Laritsky E, Kunde-Ramamoorthy G, Baker MS, Fiorotto ML, Waterland RA. Early postnatal nutrition determines adult physical activity and energy expenditure in female mice. Diabetes 2013; 62:2773-83. [PMID: 23545705 PMCID: PMC3717861 DOI: 10.2337/db12-1306] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Decades of research in rodent models has shown that early postnatal overnutrition induces excess adiposity and other components of metabolic syndrome that persist into adulthood. The specific biologic mechanisms explaining the persistence of these effects, however, remain unknown. On postnatal day 1 (P1), mice were fostered in control (C) or small litters (SL). SL mice had increased body weight and adiposity at weaning (P21), which persisted to adulthood (P180). Detailed metabolic studies indicated that female adult SL mice have decreased physical activity and energy expenditure but not increased food intake. Genome-scale DNA methylation profiling identified extensive changes in hypothalamic DNA methylation during the suckling period, suggesting that it is a critical period for developmental epigenetics in the mouse hypothalamus. Indeed, SL mice exhibited subtle and sex-specific changes in hypothalamic DNA methylation that persisted from early life to adulthood, providing a potential mechanistic basis for the sustained physiological effects. Expression profiling in adult hypothalamus likewise provided evidence of widespread sex-specific alterations in gene expression. Together, our data indicate that early postnatal overnutrition leads to a reduction in spontaneous physical activity and energy expenditure in females and suggest that early postnatal life is a critical period during which nutrition can affect hypothalamic developmental epigenetics.
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Affiliation(s)
- Ge Li
- Department of Pediatrics, Baylor College of Medicine, United States Department of Agriculture/Agricultural Research Service Children’s Nutrition Research Center, Houston, Texas
| | - John J. Kohorst
- Department of Pediatrics, Baylor College of Medicine, United States Department of Agriculture/Agricultural Research Service Children’s Nutrition Research Center, Houston, Texas
| | - Wenjuan Zhang
- Department of Pediatrics, Baylor College of Medicine, United States Department of Agriculture/Agricultural Research Service Children’s Nutrition Research Center, Houston, Texas
| | - Eleonora Laritsky
- Department of Pediatrics, Baylor College of Medicine, United States Department of Agriculture/Agricultural Research Service Children’s Nutrition Research Center, Houston, Texas
| | - Govindarajan Kunde-Ramamoorthy
- Department of Pediatrics, Baylor College of Medicine, United States Department of Agriculture/Agricultural Research Service Children’s Nutrition Research Center, Houston, Texas
| | - Maria S. Baker
- Department of Pediatrics, Baylor College of Medicine, United States Department of Agriculture/Agricultural Research Service Children’s Nutrition Research Center, Houston, Texas
| | - Marta L. Fiorotto
- Department of Pediatrics, Baylor College of Medicine, United States Department of Agriculture/Agricultural Research Service Children’s Nutrition Research Center, Houston, Texas
| | - Robert A. Waterland
- Department of Pediatrics, Baylor College of Medicine, United States Department of Agriculture/Agricultural Research Service Children’s Nutrition Research Center, Houston, Texas
- Department of Molecular & Human Genetics, Baylor College of Medicine, Houston, Texas
- Corresponding author: Robert A. Waterland,
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Nakahara K, Bannai M, Maruyama K, Suzuki Y, Okame R, Murakami N. Characterization of a novel genetically obese mouse model demonstrating early onset hyperphagia and hyperleptinemia. Am J Physiol Endocrinol Metab 2013; 305:E451-63. [PMID: 23736543 DOI: 10.1152/ajpendo.00540.2012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Obesity is a critical risk factor for the development of metabolic syndrome, and many obese animal models are used to investigate the mechanisms responsible for the appearance of symptoms. To establish a new obese mouse model, we screened ∼13,000 ICR mice and discovered a mouse demonstrating spontaneous obesity. We named this mouse "Daruma" after a traditional Japanese ornament. Following the fixation of the genotype, these animals exhibited obese phenotypes according to Mendel's law of inheritance. In the Daruma mouse, the leptin receptor gene sequence carried two base mutations that are good candidates for the variation(s) responsible for the obese phenotype. The Daruma mice developed characteristic visceral fat accumulation at 4 wk of age, and the white adipose and liver tissues exhibited increases in cell size and lipid droplets, respectively. No histological abnormalities were observed in other tissues of the Daruma mice, even after the mice reached 25 wk of age. Moreover, the onset of impaired leptin signaling was early and manifested as hyperleptinemia and hyperinsulinemia. Pair feeding completely inhibited obesity, although these mice rapidly developed hyperphagia and obesity followed by hyperleptinemia when pair feeding ceased and free-access feeding was permitted. Therefore, the Daruma mice exhibited unique characteristics and may be a good model for studying human metabolic syndrome.
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Affiliation(s)
- Keiko Nakahara
- Department of Veterinary Physiology, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
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Habbout A, Li N, Rochette L, Vergely C. Postnatal overfeeding in rodents by litter size reduction induces major short- and long-term pathophysiological consequences. J Nutr 2013; 143:553-62. [PMID: 23446961 DOI: 10.3945/jn.112.172825] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Numerous studies have demonstrated that the early postnatal environment can influence body weight and energy homeostasis into adulthood. Rodents raised in small litters have been shown to be a useful experimental model to study the short- and long-term consequences of early overnutrition, which can lead to modifications not only in body weight but also of several metabolic features. Postnatal overfeeding (PNOF) induces early malprogramming of the hypothalamic system, inducing acquired persisting central leptin and insulin resistance and an increase in orexigenic signals. Visceral white adipose tissue, lipogenic activity, and inflammatory status are increased in PNOF rodents, while brown adipose tissue shows reduced thermogenic activity. Pancreatic and hepatic glucose responsiveness is persistently reduced in PNOF rodents, which also frequently present disturbances in plasma lipids. PNOF rodents present increased circulating concentrations of leptin, elevated corticosterone secretion, and significant changes in glucocorticoid sensitivity. PNOF also influences nephrogenesis and renal maturation. Increased oxidative stress is also described in circulating blood and in some tissues, such as the heart or liver. At the cardiovascular level, a moderate increase in arterial blood pressure is sometimes observed and rapid cardiac hypertrophy is observed at weaning; however, during maturation, impaired contractility and fibrosis are observed. Myocardial genome expression is rapidly modified in overfed mice. Moreover, hearts of PNOF rodents are more sensitive to ischemia-reperfusion injury. Together, these results suggest that the nutritional state in the immediate postnatal period should be taken into account, because it may have an impact on cardiometabolic risk in adulthood.
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Affiliation(s)
- Ahmed Habbout
- Inserm UMR866, LPPCM, Faculties of Medicine and Pharmacy, University of Burgundy, Dijon, France
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