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Hao Y, Xiao J, Fu P, Yan L, Zhao X, Wu X, Zhou M, Zhang X, Xu B, Li X, Liu Z, Yang C, Wang X, Long L, Jiang X, Liao J, Zhang B, Li J. Increases in BMI contribute to worsening inflammatory biomarkers related to breast cancer risk in women: a longitudinal study. Breast Cancer Res Treat 2023; 202:117-127. [PMID: 37541965 DOI: 10.1007/s10549-023-07023-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/26/2023] [Indexed: 08/06/2023]
Abstract
BACKGROUND Inflammatory adipokines and cytokines play a pivotal role in linking obesity and breast cancer (BC) risk in women. We investigated the longitudinal associations between BMI change and trajectories of inflammatory biomarkers related to BC risk. METHODS A longitudinal study was conducted among 442 Chinese women with 3-year repeated measures from 2019 to 2021. Plasma circulating inflammatory biomarkers related to BC risk, including adiponectin (ADP), resistin (RETN), soluble leptin receptor (sOB-R), insulin-like growth factor-binding protein-3 (IGFBP-3), and C-reactive protein (CRP), were examined annually. Linear mixed-effect models (LMM) were applied to investigate associations of time-varying BMI with trajectories of biomarkers. We additionally examined the modification effect of baseline BMI groups, menopausal status, and metabolic syndrome. RESULTS BMI was associated with increased levels of RETN, CRP, sOB-R, and decreased levels of ADP at baseline. An increasing BMI rate was significantly associated with an average 3-year increase in RETN (β = 0.019, 95% CI 0.004 to 0.034) and sOB-R (β = 0.022, 95% CI 0.009 to 0.035), as well as a decrease in ADP (β = - 0.006, 95% CI - 0.012 to 0.001). These associations persisted across different baseline BMI groups. An increasing BMI rate was significantly associated with an average 3-year increase in CRP levels among normal weight (β = 0.045, 95% CI 0.001 to 0.088) and overweight (β = 0.060, 95% CI 0.014 to 0.107) women. As BMI increased over time, a more remarkable decrease in ADP was observed among women with metabolic syndrome (β = - 0.016, 95% CI - 0.029 to - 0.004) than those without metabolic syndrome at baseline. CONCLUSIONS A higher increase rate of BMI was associated with poorer trajectories of inflammatory biomarkers related to BC risk. Recommendations for BMI reduction may benefit BC prevention in women, particularly for those with metabolic syndrome.
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Affiliation(s)
- Yu Hao
- Department of Epidemiology and Biostatistics, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
- West China-PUMC C. C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jinyu Xiao
- Department of Epidemiology and Biostatistics, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
- West China-PUMC C. C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ping Fu
- Department of Maternal and Child Health, Chengdu Shuangliu District Maternal and Child Health Care Hospital, Chengdu, Sichuan, China
| | - Lanping Yan
- Department of Maternal and Child Health, Chengdu Shuangliu District Maternal and Child Health Care Hospital, Chengdu, Sichuan, China
| | - Xunying Zhao
- Department of Epidemiology and Biostatistics, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
- West China-PUMC C. C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xueyao Wu
- Department of Epidemiology and Biostatistics, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
- West China-PUMC C. C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Min Zhou
- Department of Maternal and Child Health, Chengdu Shuangliu District Maternal and Child Health Care Hospital, Chengdu, Sichuan, China
| | - Xiaofan Zhang
- Department of Scientific Research & Management, The Second People's Hospital of Guiyang, Guiyang, Guizhou, China
| | - Bin Xu
- Department of Epidemiology and Biostatistics, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
- West China-PUMC C. C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xingyue Li
- Department of Epidemiology and Biostatistics, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
- West China-PUMC C. C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhenmi Liu
- Department of Maternal, Child and Adolescent Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Chunxia Yang
- Department of Epidemiology and Biostatistics, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
- West China-PUMC C. C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xin Wang
- Department of Epidemiology and Biostatistics, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
- West China-PUMC C. C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lu Long
- Department of Epidemiology and Biostatistics, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
- West China-PUMC C. C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xia Jiang
- Department of Epidemiology and Biostatistics, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
- West China-PUMC C. C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of Nutrition and Food Hygiene, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jiaqiang Liao
- Department of Epidemiology and Biostatistics, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
- West China-PUMC C. C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ben Zhang
- Department of Epidemiology and Biostatistics, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
- West China-PUMC C. C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of Occupational and Environmental Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jiayuan Li
- Department of Epidemiology and Biostatistics, Institute of Systems Epidemiology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China.
- West China-PUMC C. C. Chen Institute of Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan, China.
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Bendinelli B, Masala G, Bella CD, Assedi M, Benagiano M, Pratesi S, Ermini I, Occhini D, Castaldo M, Saieva C, Caini S, D'Elios MM, Palli D. Adipocytokine plasma level changes in a 24-month dietary and physical activity randomised intervention trial in postmenopausal women. Eur J Nutr 2023; 62:1185-1194. [PMID: 36454365 DOI: 10.1007/s00394-022-03055-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 11/10/2022] [Indexed: 12/05/2022]
Abstract
BACKGROUND Adipocytokines are signaling molecules secreted by adipose tissue contributing to the control of body fat, energy expenditure and secretion of insulin and cytokines. They have been related to the development of obesity, type-2 diabetes, cardiovascular diseases and cancer. Diet and physical activity (PA) may have beneficial effects on their level. We evaluated the effects of a 24-month dietary and/or PA intervention on plasma levels of adipocytokines as a secondary analysis in the DAMA (Diet, physical Activity and Mammography) trial. METHODS The 234 study participants (healthy postmenopausal women with high breast density, 50-69 years, non-smokers, no hormone therapy) were randomised to four arms: (1) isocaloric dietary intervention mainly based on plant-foods; (2) moderate-intensity PA intervention with at least 1 h/week of supervised strenuous activity; (3) both interventions; (4) general recommendations on healthy dietary and PA patterns. Leptin, resistin and adiponectin were measured at baseline and at the end of the intervention. Analyses were performed using Tobit regression. RESULTS After 24 months, women randomised to PA intervention (arms #2 + #3) showed significant lower level of leptin (37.5% lower) and resistin (65.6% lower) compared to the control group (arms #1 + #4). No significant differences emerged in adiponectin levels. No significant differences in leptin, resistin and adiponectin levels at follow-up emerged in women randomised to the dietary intervention (arms #1 + #3) in comparison with controls (arms #2 + #4). CONCLUSION This study supports the effectiveness of PA, even at moderate intensity, in improving the leptin and resistin profile in postmenopausal women. TRIAL REGISTRATION NUMBER ISRCTN28492718, date of trial registration 17/05/2012.
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Affiliation(s)
- Benedetta Bendinelli
- Clinical Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Via Cosimo Il Vecchio 2, Florence, Italy
| | - Giovanna Masala
- Clinical Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Via Cosimo Il Vecchio 2, Florence, Italy.
| | - Chiara Della Bella
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Melania Assedi
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
| | - Marisa Benagiano
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Sara Pratesi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Ilaria Ermini
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
| | - Daniela Occhini
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
| | - Maria Castaldo
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
| | - Calogero Saieva
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
| | - Saverio Caini
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
| | - Mario Milco D'Elios
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Domenico Palli
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
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Zhu J, Liu C, Jia J, Zhang C, Yuan W, Leng H, Xu Y, Song C. Short-term caloric restriction induced bone loss in both axial and appendicular bones by increasing adiponectin. Ann N Y Acad Sci 2020; 1474:47-60. [PMID: 32469430 DOI: 10.1111/nyas.14380] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/30/2020] [Accepted: 05/05/2020] [Indexed: 12/13/2022]
Abstract
Caloric restriction (CR) is well described and has received extensive attention for its multiple benefits, including longevity and stress resistance. However, some studies have shown that CR negatively influences bone, although a mechanism hasn't been provided. Adiponectin, an adipocyte-derived hormone, can affect bone metabolism by various pathways. To explore the role of adiponectin in short-term CR on bone, we tested the effect of short-term CR on limb bones (tibia and femur) and lumbar vertebral bodies of young C57BL/6 wild-type (WT) and adiponectin-deficient (Apn-/- ) mice. Two dietary regimes, ad libitum (AL) and CR (70% of the AL diet), were used. Dietary restriction led to increased serum adiponectin in WT mice, while bone mineral density, bone microarchitecture, and biomechanical outcomes of limb bone and vertebrae were decreased. In contrast, bone length, microarchitecture, and biomechanical outcomes were not impaired after CR in Apn-/- mice. Furthermore, CR increased adiponectin expression both in white adipose tissue and bone marrow adipose tissue in young WT mice. Histology analysis showed that expansion of bone marrow adipose tissue after CR in Apn-/- mice was impaired compared with WT mice. These results suggest that increased adiponectin induced by short-term CR may negatively influence bones.
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Affiliation(s)
- Junxiong Zhu
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Can Liu
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Jialin Jia
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Chenggui Zhang
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Wanqiong Yuan
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Huijie Leng
- Department of Orthopedics, Peking University Third Hospital, Beijing, China.,Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Yingsheng Xu
- Department of Neurology, Peking University Third Hospital, Beijing, China
| | - Chunli Song
- Department of Orthopedics, Peking University Third Hospital, Beijing, China.,Beijing Key Laboratory of Spinal Diseases, Beijing, China
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4
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Yu M, King B, Ewert E, Su X, Mardiyati N, Zhao Z, Wang W. Exercise Activates p53 and Negatively Regulates IGF-1 Pathway in Epidermis within a Skin Cancer Model. PLoS One 2016; 11:e0160939. [PMID: 27509024 PMCID: PMC4979999 DOI: 10.1371/journal.pone.0160939] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 07/27/2016] [Indexed: 12/11/2022] Open
Abstract
Exercise has been previously reported to lower cancer risk through reducing circulating IGF-1 and IGF-1-dependent signaling in a mouse skin cancer model. This study aims to investigate the underlying mechanisms by which exercise may down-regulate the IGF-1 pathway via p53 and p53-related regulators in the skin epidermis. Female SENCAR mice were pair-fed an AIN-93 diet with or without 10-week treadmill exercise at 20 m/min, 60 min/day and 5 days/week. Animals were topically treated with TPA 2 hours before sacrifice and the target proteins in the epidermis were analyzed by both immunohistochemistry and Western blot. Under TPA or vehicle treatment, MDM2 expression was significantly reduced in exercised mice when compared with sedentary control. Meanwhile, p53 was significantly elevated. In addition, p53-transcriptioned proteins, i.e., p21, IGFBP-3, and PTEN, increased in response to exercise. There was a synergy effect between exercise and TPA on the decreased MDM2 and increased p53, but not p53-transcripted proteins. Taken together, exercise appeared to activate p53, resulting in enhanced expression of p21, IGFBP-3, and PTEN that might induce a negative regulation of IGF-1 pathway and thus contribute to the observed cancer prevention by exercise in this skin cancer model.
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Affiliation(s)
- Miao Yu
- Department of Food Nutrition Dietetics & Health, Kansas State University, Manhattan, Kansas, United States of America
| | - Brenee King
- Department of Food Nutrition Dietetics & Health, Kansas State University, Manhattan, Kansas, United States of America
| | - Emily Ewert
- Department of Food Nutrition Dietetics & Health, Kansas State University, Manhattan, Kansas, United States of America
| | - Xiaoyu Su
- Department of Food Nutrition Dietetics & Health, Kansas State University, Manhattan, Kansas, United States of America
| | - Nur Mardiyati
- Department of Food Nutrition Dietetics & Health, Kansas State University, Manhattan, Kansas, United States of America
| | - Zhihui Zhao
- Institute for Agri-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Weiqun Wang
- Department of Food Nutrition Dietetics & Health, Kansas State University, Manhattan, Kansas, United States of America
- * E-mail:
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5
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Behrendt AK, Kuhla A, Osterberg A, Polley C, Herlyn P, Fischer DC, Scotland M, Wree A, Histing T, Menger MD, Müller-Hilke B, Mittlmeier T, Vollmar B. Dietary Restriction-Induced Alterations in Bone Phenotype: Effects of Lifelong Versus Short-Term Caloric Restriction on Femoral and Vertebral Bone in C57BL/6 Mice. J Bone Miner Res 2016; 31:852-63. [PMID: 26572927 DOI: 10.1002/jbmr.2745] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 11/11/2015] [Accepted: 11/13/2015] [Indexed: 12/17/2022]
Abstract
Caloric restriction (CR) is a well-described dietary intervention that delays the onset of aging-associated biochemical and physiological changes, thereby extending the life span of rodents. The influence of CR on metabolism, strength, and morphology of bone has been controversially discussed in literature. Thus, the present study evaluated whether lifelong CR versus short-term late-onset dietary intervention differentially affects the development of senile osteoporosis in C57BL/6 mice. Two different dietary regimens with 40% food restriction were performed: lifelong CR starting in 4-week-old mice was maintained for 4, 20, or 74 weeks. In contrast, short-term late-onset CR lasting a period of 12 weeks was commenced at 48 or 68 weeks of age. Control mice were fed ad libitum (AL). Bone specimens were assessed using microcomputed tomography (μCT, femur and lumbar vertebral body) and biomechanical testing (femur). Adverse effects of CR, including reduced cortical bone mineral density (Ct.BMD) and thickness (Ct.Th), were detected to some extent in senile mice (68+12w) but in particular in cortical bone of young growing mice (4+4w), associated with reduced femoral failure force (F). However, we observed a profound capacity of bone to compensate these deleterious changes of minor nutrition with increasing age presumably via reorganization of trabecular bone. Especially in lumbar vertebrae, lifelong CR lasting 20 or 74 weeks had beneficial effects on trabecular bone mineral density (Tb.BMD), bone volume fraction (BV/TV), and trabecular number (Tb.N). In parallel, lifelong CR groups showed reduced structure model index values compared to age-matched controls indicating a transformation of vertebral trabecular bone microarchitecture toward a platelike geometry. This effect was not visible in senile mice after short-term 12-week CR. In summary, CR has differential effects on cortical and trabecular bone dependent on bone localization and starting age. Our study underlines that bone compartments possess a lifelong capability to cope with changing nutritional influences.
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Affiliation(s)
- Ann-Kathrin Behrendt
- Department of Trauma, Hand, and Reconstructive Surgery, Rostock University Medical Center, Rostock, Germany.,Institute for Experimental Surgery, Rostock University Medical Center, Rostock, Germany
| | - Angela Kuhla
- Institute for Experimental Surgery, Rostock University Medical Center, Rostock, Germany
| | - Anja Osterberg
- Institute of Immunology, Rostock University Medical Center, Rostock, Germany
| | - Christian Polley
- Institute for Experimental Surgery, Rostock University Medical Center, Rostock, Germany
| | - Philipp Herlyn
- Department of Trauma, Hand, and Reconstructive Surgery, Rostock University Medical Center, Rostock, Germany
| | | | - Maike Scotland
- Department of Trauma, Hand, and Reconstructive Surgery, Rostock University Medical Center, Rostock, Germany
| | - Andreas Wree
- Institute of Anatomy, Rostock University Medical Center, Rostock, Germany
| | - Tina Histing
- Department of Trauma, Hand, and Reconstructive Surgery, University of Saarland, Homburg/Saar, Germany
| | - Michael D Menger
- Institute for Clinical and Experimental Surgery, University of Saarland, Homburg/Saar, Germany
| | | | - Thomas Mittlmeier
- Department of Trauma, Hand, and Reconstructive Surgery, Rostock University Medical Center, Rostock, Germany
| | - Brigitte Vollmar
- Institute for Experimental Surgery, Rostock University Medical Center, Rostock, Germany
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Abstract
As prevalence of obesity continues to rise in the United States, we are beginning to elucidate the complex role of obesity-associated chronic inflammation, endocrine dysfunction, and hormone production as a driver for increased breast cancer risk. Epidemiological data suggest that obesity (BMI > 30) is associated with increased breast cancer incidence, worse prognosis, and higher mortality rates. Mechanistically, obesity and excess fat mass represent a state of chronic inflammation, insulin resistance, adipokine imbalance, and increased estrogen signaling. This pro-tumorigenic environment stimulates cancer development through abnormal growth, proliferation, and survival of mammary tissue. Importantly, obesity is a modifiable risk factor; alterations in cell proliferation, apoptosis, circulating estrogen, and insulin sensitivity are observed in response to weight loss attainable through behavior modification including dietary and exercise changes.
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Affiliation(s)
- Victoria M Gershuni
- Department of Surgery, Hospital of the University of Pennsylvania, 3400 Spruce Street, 4 Maloney, Philadelphia, PA 19104, USA
| | - Rexford S Ahima
- Department of Endocrinology, Diabetes and Metabolism, Division, Hospital of the University of Pennsylvania, 3400, Civic Center Boulevard, Building 421, Philadelphia, PA 19104, USA
| | - Julia Tchou
- Department of Surgery Division of Endocrine and Oncologic Surgery, Hospital of the University of Pennsylvania, Perelman Center for Advanced Medicine, 34th & Civic Center Blvd, 3 South, Philadelphia, PA 19104, USA
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7
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van Gemert WA, May AM, Schuit AJ, Oosterhof BY, Peeters PH, Monninkhof EM. Effect of Weight Loss with or without Exercise on Inflammatory Markers and Adipokines in Postmenopausal Women: The SHAPE-2 Trial, A Randomized Controlled Trial. Cancer Epidemiol Biomarkers Prev 2016; 25:799-806. [DOI: 10.1158/1055-9965.epi-15-1065] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 02/08/2016] [Indexed: 11/16/2022] Open
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8
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Segura S, Efthimiadi L, Porcher C, Courtes S, Coronas V, Krantic S, Moyse E. Leptin-dependent neurotoxicity via induction of apoptosis in adult rat neurogenic cells. Front Cell Neurosci 2015; 9:350. [PMID: 26441523 PMCID: PMC4561523 DOI: 10.3389/fncel.2015.00350] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 08/21/2015] [Indexed: 12/30/2022] Open
Abstract
Adipocyte-derived hormone leptin has been recently implicated in the control of neuronal plasticity. To explore whether modulation of adult neurogenesis may contribute to leptin control of neuronal plasticity, we used the neurosphere assay of neural stem cells derived from the adult rat subventricular zone (SVZ). Endogenous expression of specific leptin receptor (ObRb) transcripts, as revealed by RT-PCR, is associated with activation of both ERK and STAT-3 pathways via phosphorylation of the critical ERK/STAT-3 amino acid residues upon addition of leptin to neurospheres. Furthermore, leptin triggered withdrawal of neural stem cells from the cell cycle as monitored by Ki67 labeling. This effect was blocked by pharmacological inhibition of ERK activation thus demonstrating that ERK mediates leptin effects on neural stem cell expansion. Leptin-dependent withdrawal of neural stem cells from the cell cycle was associated with increased apoptosis, as detected by TUNEL, which was preceded by cyclin D1 induction. Cyclin D1 was indeed extensively colocalized with TUNEL-positive, apoptotic nuclei. Cyclin-D1 silencing by specific shRNA prevented leptin-induced decrease of the cell number per neurosphere thus pointing to the causal relationship between leptin actions on apoptosis and cyclin D1 induction. Leptin target cells in SVZ neurospheres were identified by double TUNEL/phenotypic marker immunocytofluorescence as differentiating neurons mostly. The inhibition of neural stem cell expansion via ERK/cyclin D1-triggered apoptosis defines novel biological action of leptin which may be involved in adiposity-dependent neurotoxicity.
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Affiliation(s)
- Stéphanie Segura
- Physiologie de la Reproduction et des Comportements, UMR 85 Institut National de la Recherche Agronomique, Centre INRA de Tours, Université François Rabelais de Tours Nouzilly, France
| | - Laurie Efthimiadi
- Institut National de la Santé et de la Recherche Médicale Unité 901, Institut de Neurobiologie de la Méditerranée, Parc Scientifique de Luminy, Aix-Marseille Université Marseille, France
| | - Christophe Porcher
- Institut National de la Santé et de la Recherche Médicale Unité 901, Institut de Neurobiologie de la Méditerranée, Parc Scientifique de Luminy, Aix-Marseille Université Marseille, France
| | - Sandrine Courtes
- Institut National de la Santé et de la Recherche Médicale Unité 901, Institut de Neurobiologie de la Méditerranée, Parc Scientifique de Luminy, Aix-Marseille Université Marseille, France
| | - Valérie Coronas
- Signalisation et Transports Ioniques Membranaires, ERL 7368 Centre National de la Recherche Scientifique, Université de Poitiers Poitiers, France
| | - Slavica Krantic
- Institut National de la Santé et de la Recherche Médicale Unité 901, Institut de Neurobiologie de la Méditerranée, Parc Scientifique de Luminy, Aix-Marseille Université Marseille, France ; Centre de Recherche des Cordeliers, UMR_S 1138 INSERM, Paris Descartes University, Sorbonne Paris Cité, Pierre and Marie Curie University Paris, France
| | - Emmanuel Moyse
- Physiologie de la Reproduction et des Comportements, UMR 85 Institut National de la Recherche Agronomique, Centre INRA de Tours, Université François Rabelais de Tours Nouzilly, France
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9
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Moon PD, Kim MH, Oh HA, Nam SY, Han NR, Jeong HJ, Kim HM. Cysteine induces longitudinal bone growth in mice by upregulating IGF-I. Int J Mol Med 2015; 36:571-6. [PMID: 26101100 DOI: 10.3892/ijmm.2015.2257] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 06/16/2015] [Indexed: 11/06/2022] Open
Abstract
Cysteine (Cys) is known to exert various effects, such as antioxidant, antipancreatitic and antidiabetic effects. However, the effects of Cys on longitudinal bone growth have not been elucidate to date. Thus, the aim of the present study was to evaluate the effects of Cys on bone growth. Growth-plate thickness and bone parameters, such as bone volume/tissue volume (BV/TV), trabecular thickness (Tb.Th), trabecular number (Tb.N), connectivity density (Conn.D) and total porosity were analyzed by means of micro-computed tomography (μCT). The levels of serum insulin-like growth factor-I (IGF-I) were measured by enzyme-linked immunosorbent assay (ELISA). Hepatic IGF-I mRNA expression was analyzed by quantitative polymerase chain reaction (qPCR). The phosphorylation of Janus kinase 2 (JAK2) and signal transducer and activator of transcription 5 (STAT5) was investigated by western blot analysis. Our results revealed that Cys increased IGF-I mRNA expression in HepG2 cells. The thickness of the growth plates was increased following treatment with Cys. Moreover, BV/TV, Tb.Th, TbN, Conn.D and total porosity were improved following treatment with Cys. Hepatic IGF-I mRNA expression and serum IGF-I levels were increased by Cys. The levels of phosphorylated JAK2 and STAT5 were elevated by Cys. The findings of our study indicate that Cys increases the thickness of growth plates through the upregulation of IGF-I, which results from the phosphorylation of JAK2-STAT5. Thus, our data suggest that Cys may have potential for use as a growth-promoting agent.
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Affiliation(s)
- Phil-Dong Moon
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 130‑701, Republic of Korea
| | - Min-Ho Kim
- Department of Computer Aided Mechanical Engineering, Sohae College, Gunsan, Jeonbuk, 573-717, Republic of Korea
| | - Hyun-A Oh
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 130‑701, Republic of Korea
| | - Sun-Young Nam
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 130‑701, Republic of Korea
| | - Na-Ra Han
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 130‑701, Republic of Korea
| | - Hyun-Ja Jeong
- Biochip Research Center, Hoseo University, Asan, Chungnam 336‑795, Republic of Korea
| | - Hyung-Min Kim
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 130‑701, Republic of Korea
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Moon PD, Kim MH, Lim HS, Oh HA, Nam SY, Han NR, Kim MJ, Jeong HJ, Kim HM. Taurine, a major amino acid of oyster, enhances linear bone growth in a mouse model of protein malnutrition. Biofactors 2015; 41:190-7. [PMID: 25963419 DOI: 10.1002/biof.1213] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 04/19/2015] [Indexed: 01/04/2023]
Abstract
Oysters (Oys) contain various beneficial components, such as, antioxidants and amino acids. However, the effects of Oys or taurine (Tau), a major amino acid in Oys on bone growth have not been determined. In the present study, we evaluated the effects of Oys or Tau on linear bone growth in a mouse model of protein malnutrition. To make the protein malnutrition in a mouse, we used a low protein diet. Growth plate thickness was increased by Oys or Tau. Bone volume/tissue volume, trabecular thickness, trabecular number, connection density, and total porosity were also improved by Oys or Tau. Oys or Tau increased insulin-like growth factor-1 (IGF-1) levels in serum, liver, and tibia-growth plate. Phosphorylations of Janus kinase 2 (JAK2) and signal transducer and activator of transcription 5 (STAT5) were increased by Oys and by Tau. These findings show that Oys or Tau may increase growth plate thickness by elevating IGF-1 levels and by promoting the phosphorylations of JAK2-STAT5, and suggest that Oys or Tau are growth-promoting substances of potential use in the food and pharmaceutical industries.
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Affiliation(s)
- Phil-Dong Moon
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
| | - Min-Ho Kim
- Department of Computer Aided Mechanical Engineering, Sohae College, Gunsan, Jeonbuk, 573-717, Republic of Korea
| | - Hun-Sun Lim
- Du Wha Com., Deokjeong-ri, Samseong-myeon, Eumseong-gun, Chungbuk, 369-833, Republic of Korea
| | - Hyun-A Oh
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
| | - Sun-Young Nam
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
| | - Na-Ra Han
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
| | - Myong-Jo Kim
- Oriental Bio-herb Research Institute, Kangwon National University, Chuncheon, 200-701, Republic of Korea
| | - Hyun-Ja Jeong
- Inflammatory Disease Research Center and Biochip Research Center, Hoseo University, 165 Sechul-ri, Baebang-myun, Asan, Chungnam, 336-795, Republic of Korea
| | - Hyung-Min Kim
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, 1 Hoegi-dong, Dongdaemun-gu, Seoul, 130-701, Republic of Korea
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11
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King BS, Lu L, Yu M, Jiang Y, Standard J, Su X, Zhao Z, Wang W. Lipidomic profiling of di- and tri-acylglycerol species in weight-controlled mice. PLoS One 2015; 10:e0116398. [PMID: 25706122 PMCID: PMC4337902 DOI: 10.1371/journal.pone.0116398] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 12/09/2014] [Indexed: 01/19/2023] Open
Abstract
Weight control by dietary calorie restriction (DCR) or exercise has been shown to prevent cancer in various models. However, the mechanisms as to how weight control is beneficial are not well understood. While previous reports have investigated the effects of weight control on total lipid levels or lipid composition within cellular membranes, there has been little work surrounding changes to individual lipids following weight control interventions. In this study, using a model of skin carcinogenesis centered on the tumor promotion stage, CD-1 mice were randomly assigned into 4 groups: ad libitum and sedentary (control), ad libitum with exercise (AL+Exe), exercise with pair feeding of a diet isocaloric with control (PF+Exe), and sedentary with 20% DCR compared to control. After ten weeks, body weight and body fat percentages significantly decreased in the PF+Exe and DCR groups but not AL+Exe when compared with sedentary controls. Murine skin and plasma samples were obtained for analysis. Lipidomics using electrospray ionization MS/MS was employed to profile triacylglycerol (TG) and diacylglycerol (DG) species. Both plasma and tissue TG species containing fatty acid chains with length 18:1 were significantly decreased following DCR when compared to sedentary control animals. In regards to DG, the most significant changes occurred in the plasma. DG species containing fatty acids with lengths 16:1 or 18:1 were significantly decreased in PF+Exe and DCR groups when compared to sedentary controls. Due to the significant role of TG in energy storage and DG in cellular signaling, our findings of the effects of weight control on individual TG and DG species in plasma and skin tissue following exposure to a tumor promoter, may provide insight into the mechanism of weight control on cancer prevention.
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Affiliation(s)
- Brenee S. King
- Department of Human Nutrition, Kansas State University, Manhattan, KS 66506, United States of America
| | - Lizhi Lu
- Institute of Animal Husbandry & Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Miao Yu
- Department of Human Nutrition, Kansas State University, Manhattan, KS 66506, United States of America
| | - Yu Jiang
- Department of Human Nutrition, Kansas State University, Manhattan, KS 66506, United States of America
| | - Joseph Standard
- Department of Human Nutrition, Kansas State University, Manhattan, KS 66506, United States of America
| | - Xiaoyu Su
- Department of Human Nutrition, Kansas State University, Manhattan, KS 66506, United States of America
| | - Zhihui Zhao
- Institute for Agri-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Weiqun Wang
- Department of Human Nutrition, Kansas State University, Manhattan, KS 66506, United States of America
- * E-mail:
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12
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Standard J, Jiang Y, Yu M, Su X, Zhao Z, Xu J, Chen J, King B, Lu L, Tomich J, Baybutt R, Wang W. Reduced signaling of PI3K-Akt and RAS-MAPK pathways is the key target for weight-loss-induced cancer prevention by dietary calorie restriction and/or physical activity. J Nutr Biochem 2014; 25:1317-23. [PMID: 25283328 DOI: 10.1016/j.jnutbio.2014.07.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Revised: 07/25/2014] [Accepted: 07/28/2014] [Indexed: 12/11/2022]
Abstract
Weight control through either dietary calorie restriction (DCR) or exercise has been associated with cancer prevention in animal models. However, the underlying mechanisms are not fully defined. Bioinformatics using genomics, proteomics and lipidomics was employed to elucidate the molecular targets of weight control in a mouse skin cancer model. SENCAR mice were randomly assigned into four groups for 10 weeks: ad-libitum-fed sedentary control, ad-libitum-fed exercise (AE), exercise but pair-fed isocaloric amount of control (PE) and 20% DCR. Two hours after topical TPA treatment, skin epidermis was analyzed by Affymetrix for gene expression, DIGE for proteomics and lipidomics for phospholipids. Body weights were significantly reduced in both DCR and PE but not AE mice versus the control. Among 39,000 transcripts, 411, 67 and 110 genes were significantly changed in DCR, PE and AE, respectively. The expression of genes relevant to PI3K-Akt and Ras-MAPK signaling was effectively reduced by DCR and PE but not AE as measured through GenMAPP software. Proteomics analysis identified ~120 proteins, with 27 proteins significantly changed by DCR, including up-regulated apolipoprotein A-1, a key antioxidant protein that decreases Ras-MAPK activity. Of the total 338 phospholipids analyzed by lipidomics, 57 decreased by PE including 5 phophatidylinositol species that serve as PI3K substrates. Although a full impact has not been determined yet, it appears that the reduction of both Ras-MAPK and PI3K-Akt signaling pathways is a cancer preventive target that has been consistently demonstrated by three bioinformatics approaches.
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Affiliation(s)
- Joseph Standard
- Department of Human Nutrition, Kansas State University, Manhattan, KS 66506
| | - Yu Jiang
- Department of Human Nutrition, Kansas State University, Manhattan, KS 66506
| | - Miao Yu
- Department of Human Nutrition, Kansas State University, Manhattan, KS 66506
| | - Xiaoyu Su
- Department of Human Nutrition, Kansas State University, Manhattan, KS 66506
| | - Zhihui Zhao
- Institute for Agri-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai, China 201403
| | - Jianteng Xu
- Department of Human Nutrition, Kansas State University, Manhattan, KS 66506
| | - Jie Chen
- Department of Human Nutrition, Kansas State University, Manhattan, KS 66506
| | - Brenee King
- Department of Human Nutrition, Kansas State University, Manhattan, KS 66506
| | - Lizhi Lu
- Institute of Animal Husbandry & Veterinary Science, Zhejiang Academy of Agricultural Sciences, Hangzhou, China 310021
| | - John Tomich
- Department of Biochemistry, Kansas State University, Manhattan, KS 66506
| | - Richard Baybutt
- Department of Applied Health Science, Wheaton College, Wheaton, IL 60187
| | - Weiqun Wang
- Department of Human Nutrition, Kansas State University, Manhattan, KS 66506.
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13
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Changes in morphology and function of adrenal cortex in mice fed a high-fat diet. Int J Obes (Lond) 2014; 39:321-30. [PMID: 24919565 DOI: 10.1038/ijo.2014.102] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 05/09/2014] [Accepted: 05/15/2014] [Indexed: 12/20/2022]
Abstract
BACKGROUND/OBJECTIVES Obesity is a major risk factor for the development of type 2 diabetes and other debilitating diseases. Obesity and diabetes are intimately linked with altered levels of adrenal steroids. Elevated levels of these hormones induce insulin resistance and cause cardiovascular diseases. The mechanisms underlying obesity-related alterations in adrenal steroids are still not well understood. Here, we investigated how diet-induced obesity affects the morphology and function of the mouse adrenal cortex. METHODS We fed animals either a high-fat diet (HFD) or a normal diet (60% kcal from fat or 10% kcal from fat, respectively) for 18 weeks. We then assessed various aspects of adrenal gland morphology and function, as well as basal plasma concentrations of steroid hormones and ACTH. RESULTS We show that adrenal glands of mice fed a HFD release more corticosterone and aldosterone, resulting in higher plasma levels. This increase is driven by adrenal cortical hyperplasia, and by increased expression of multiple genes involved in steroidogenesis. We demonstrate that diet-induced obesity elevates Sonic hedgehog signaling in Gli1-positive progenitors, which populate the adrenal capsule and give rise to the steroidogenic cells of the adrenal cortex. Feeding animals with a HFD depletes Gli1-positive progenitors, as the adrenal cortex expands. CONCLUSIONS This work provides insight into how diet-induced obesity changes the biology of the adrenal gland. The association of these changes with increased Shh signaling suggests possible therapeutic strategies for obesity-related steroid hormone dysfunction.
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Alisi A, Bedogni G, Baviera G, Giorgio V, Porro E, Paris C, Giammaria P, Reali L, Anania F, Nobili V. Randomised clinical trial: The beneficial effects of VSL#3 in obese children with non-alcoholic steatohepatitis. Aliment Pharmacol Ther 2014; 39:1276-85. [PMID: 24738701 PMCID: PMC4046270 DOI: 10.1111/apt.12758] [Citation(s) in RCA: 298] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 02/11/2014] [Accepted: 03/27/2014] [Indexed: 02/06/2023]
Abstract
BACKGROUND Gut microbiota modifiers may have beneficial effects of non-alcoholic fatty liver disease (NAFLD) but randomised controlled trials (RCT) are lacking in children. AIM To perform a double-blind RCT of VSL#3 vs. placebo in obese children with biopsy-proven NAFLD. METHODS Of 48 randomised children, 44 (22 VSL#3 and 22 placebo) completed the study. The main outcome was the change in fatty liver severity at 4 months as detected by ultrasonography. Secondary outcomes were the changes in triglycerides, insulin resistance as detected by the homoeostasis model assessment (HOMA), alanine transaminase (ALT), body mass index (BMI), glucagon-like peptide 1 (GLP-1) and activated GLP-1 (aGLP-1). Ordinal and linear models with cluster confidence intervals were used to evaluate the efficacy of VSL#3 vs. placebo at 4 months. RESULTS At baseline, moderate and severe NAFLD were present in 64% and 36% of PLA children and in 55% and 45% of VSL#3 children. The probability that children supplemented with VSL#3 had none, light, moderate or severe FL at the end of the study was 21%, 70%, 9% and 0% respectively with corresponding values of 0%, 7%, 76% and 17% for the placebo group (P < 0.001). No between-group differences were detected in triglycerides, HOMA and ALT while BMI decreased and GLP-1 and aGLP1 increased in the VSL#3 group (P < 0.001 for all comparisons). CONCLUSIONS A 4-month supplement of VSL#3 significantly improves NAFLD in children. The VSL#3-dependent GLP-1 increase could be responsible for these beneficial effects. Trial identifier: NCT01650025 (www.clinicaltrial.gov).
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Affiliation(s)
- A. Alisi
- Hepato-Metabolic Disease Unit and Liver Research Unit, “Bambino Gesù” Children’s Hospital, IRCCS, Rome, Italy
| | - G. Bedogni
- Clinical Epidemiology Unit, Liver Research Center, Basovizza, Trieste, Italy
| | | | - V. Giorgio
- Hepato-Metabolic Disease Unit and Liver Research Unit, “Bambino Gesù” Children’s Hospital, IRCCS, Rome, Italy
| | - E. Porro
- Family paediatrician, Rome, Italy
| | - C. Paris
- Family paediatrician, Rome, Italy
| | | | - L. Reali
- Family paediatrician, Rome, Italy
| | - F. Anania
- Division of Digestive Diseases, Emory University School of Medicine, Atlanta, Georgia
| | - V. Nobili
- Hepato-Metabolic Disease Unit and Liver Research Unit, “Bambino Gesù” Children’s Hospital, IRCCS, Rome, Italy
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