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O'Rourke N, Dervis S, da Silva DF, Geurts C, Haman F, Adamo KB. Heat production during exercise in pregnancy: discerning the contribution of total body weight. Pflugers Arch 2024; 476:769-778. [PMID: 38433124 DOI: 10.1007/s00424-024-02929-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 12/23/2023] [Accepted: 02/13/2024] [Indexed: 03/05/2024]
Abstract
Studies have reported enhanced thermoregulatory function as pregnancy progresses; however, it is unclear if differences in thermoregulation are attributed to weight gain or other physiological changes. This study aimed to determine if total body weight will influence thermoregulation (heat production (Hprod)), heart rate, and perceptual measurements in response to weight-bearing exercise during early to late pregnancy. A cross-sectional design of healthy pregnant women at different pregnancy time points (early, T1; middle, T2; late, T3) performed a 7-stage weight-bearing incremental exercise protocol. Measurements of Hprod, HR, and RPE were examined. Two experimental groups were studied: (1) weight matched and (2) non-weight matched, in T1, T2, and T3. During exercise, equivalent Hprod at T1 (326 ± 88 kJ), T2 (330 ± 43 kJ), and T3 (352 ± 52 kJ) (p = 0.504); HR (p = 0.830); and RPE (p = 0.195) were observed in the WM group at each time point. In the NWM group, Hprod (from stages 1-6 of the exercise) increased across pregnancy time points, T1 (291 ± 76 kJ) to T2 (347 ± 41 kJ) and T3 (385 ± 47 kJ) (p < 0.001). HR increased from T1 to T3 in the warm-up to stage 6 (p = 0.009). RPE did not change as pregnancy time point progressed (p = 0.309). Total body weight, irrespective of pregnancy time point, modulates Hprod and HR during exercise. Therefore, accounting for total body weight is crucial when comparing thermoregulatory function during exercise across pregnancy.
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Affiliation(s)
- Nicholas O'Rourke
- Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Lees Campus, 518E, 200 Lees Ave, Ottawa, ON, K1N 6N5, Canada
| | - Sheila Dervis
- Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Lees Campus, 518E, 200 Lees Ave, Ottawa, ON, K1N 6N5, Canada
| | - Danilo F da Silva
- Sports Studies Department, Faculty of Arts and Science, Bishop's University, Sherbrooke, QC, Canada
| | - Carla Geurts
- Fontys University of Applied Sciences, Venlo, Netherlands
| | - François Haman
- Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Lees Campus, 518E, 200 Lees Ave, Ottawa, ON, K1N 6N5, Canada
| | - Kristi Bree Adamo
- Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Lees Campus, 518E, 200 Lees Ave, Ottawa, ON, K1N 6N5, Canada.
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Kopaczyńska A, Bober A, Puk A, Chwałczyńska A. Evaluation of Foot Structure in Preschool Children Based on Body Mass. Med Sci Monit 2024; 30:e943765. [PMID: 38659197 DOI: 10.12659/msm.943765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024] Open
Abstract
BACKGROUND The human foot has a complex structure and the ligamentous and muscular apparatus undergoes transformation and adaptation during its ontogenetic development. Excessive body mass may be one of the factors disrupting proper foot formation. This study aimed to assess the foot structure in preschool children in relation to body mass. MATERIAL AND METHODS A total of 105 children aged 6.27±0.60 years were examined. Height, weight, and segmental body composition were determined using the Tanita MC-780 body composition analyzer. The foot structure was assessed using the Kasperczyk method, supplemented with digital analysis using the Podoscan 2D camera. The Weisflog index and gamma angle for feet were calculated. Children were divided into 2 groups: children in Group I did not have foot deformities and those in Group II had foot deformities. RESULTS No correlation was observed between body mass and the occurrence of anomalies in foot structure. A correlation was noted between the Weisflog index for the right foot and height in both groups. The Weisflog index for both feet was correlated with BMI, with higher values obtained for the left foot in both groups. In Group II, a correlation was observed between the gamma angle value for the left foot and the predicted muscle mass for the right lower limb, as well as between the same foot and the predicted muscle mass for the left lower limb. CONCLUSIONS No correlation was observed between high BMI and the occurrence of anomalies in foot structure. A relationship was identified between muscle mass and foot structure.
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Affiliation(s)
- Aleksandra Kopaczyńska
- Student Scientific Society, Wrocław University of Health and Sport Sciences, Wrocław, Poland
| | - Alicja Bober
- Student Scientific Society, Wrocław University of Health and Sport Sciences, Wrocław, Poland
| | - Agnieszka Puk
- Student Scientific Society, Wrocław University of Health and Sport Sciences, Wrocław, Poland
| | - Agnieszka Chwałczyńska
- Departmant of Human Biology, Wrocław University of Health and Sport Sciences, Wrocław, Poland
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Lago MW, Marques LS, Jung JTK, Felipeto V, Nogueira CW. A high salt intake in early life affects stress-coping response in males but not in female rats. Physiol Behav 2024; 277:114498. [PMID: 38367943 DOI: 10.1016/j.physbeh.2024.114498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/23/2024] [Accepted: 02/14/2024] [Indexed: 02/19/2024]
Abstract
Eating diets high in salt has been associated with alterations in the immune system and the potential development of neuropsychiatric disorders. This area of research shows promise, but there is currently a limited amount of research on this topic. The present study investigated whether a high salt diet (HSD) affects anhedonia and stress-coping response behaviors in young male and female Wistar rats. In this study, male and female Wistar rats were fed an HSD (8 % NaCl w/w) from weaning to post-natal day (PND) 64. From PND 60 to 64, the rats underwent a spontaneous locomotor activity test (SLA), sucrose splash test (SST), sucrose preference test (SPT), and forced swim test (FST), followed by euthanasia at PND 65. Male and female rats consuming the HSD exhibited an increase in water intake compared to the corresponding control diet (CD) groups. Male rats had lower body weight despite having similar food intakes compared to the CD group. Male rats displayed an active stress-coping behavior in the FST, characterized by increased mobility. Additionally, HSD-fed males exhibited a greater preference for sucrose solution in the SPT. However, no effect of diet and sex were detected in the SST and the SLA, and hypothalamic levels of leptin and ghrelin receptors. On the other hand, female rats were less susceptible to the experimental conditions applied in this protocol than males.
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Affiliation(s)
- M W Lago
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil; Laboratory of Synthesis, Reactivity and Pharmacological and Toxicological Evaluation of Organocalcogens, Center for Natural and Exact Sciences, Federal University of Santa Maria, UFSM, Santa Maria, RS, Brazil
| | - L S Marques
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil; Laboratory of Synthesis, Reactivity and Pharmacological and Toxicological Evaluation of Organocalcogens, Center for Natural and Exact Sciences, Federal University of Santa Maria, UFSM, Santa Maria, RS, Brazil
| | - Juliano T K Jung
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil; Laboratory of Synthesis, Reactivity and Pharmacological and Toxicological Evaluation of Organocalcogens, Center for Natural and Exact Sciences, Federal University of Santa Maria, UFSM, Santa Maria, RS, Brazil
| | - V Felipeto
- Laboratory of Synthesis, Reactivity and Pharmacological and Toxicological Evaluation of Organocalcogens, Center for Natural and Exact Sciences, Federal University of Santa Maria, UFSM, Santa Maria, RS, Brazil
| | - C W Nogueira
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria - UFSM, Santa Maria, RS, Brazil; Laboratory of Synthesis, Reactivity and Pharmacological and Toxicological Evaluation of Organocalcogens, Center for Natural and Exact Sciences, Federal University of Santa Maria, UFSM, Santa Maria, RS, Brazil.
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Meneguzzo P, Antoniades A, Garolla A, Tozzi F, Todisco P. Predictors of psychopathology response in atypical anorexia nervosa following inpatient treatment: A propensity score matching study of weight suppression and weight loss speed. Int J Eat Disord 2024; 57:1002-1007. [PMID: 38191854 DOI: 10.1002/eat.24135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 12/27/2023] [Accepted: 12/27/2023] [Indexed: 01/10/2024]
Abstract
INTRODUCTION This study examines weight suppression (WS) and weight loss speed (WLS) in atypical anorexia nervosa (AN) and its implications for treatment outcomes, compared to people with AN and bulimia nervosa (BN). METHOD A mixed cross-sectional and prospective design was employed, assessing WS and WLS in people with atypical AN, AN, and BN. Participants were matched for age, gender, age of onset, and disorder duration. Clinical measurements and eating disorders questionnaire (EDE-Q) scores were employed to evaluate the response to treatment. RESULTS Individuals with atypical individuals exhibited WS patterns similar to AN, distinct from BN. Rapid WLS predicted clinical responses in atypical AN and BN, underscoring its treatment relevance. Atypical AN showed higher eating psychopathology scores than AN or BN, emphasizing the need for a reframed diagnosis. DISCUSSION Understanding atypical AN's connection to restrictive behaviors and weight loss informs screening, assessment, and treatment practices. Recognition of atypical AN's severity and adoption of tailored approaches are essential for recovery. This study highlights the significance of WS and WLS in atypical AN treatment outcomes, offering insights into clinical practice and care. The proposal to reframe atypical AN as a restrictive eating disorder emphasizes its clinical relevance. PUBLIC SIGNIFICANCE STATEMENT The phenomenon of weight suppression, involving the discrepancy between past highest weight and current weight, has garnered attention due to cultural pressures emphasizing fitness and appearance. This study focuses on its implications in atypical anorexia nervosa, aiming to uncover the relationship between WS, its speed, and treatment outcomes. The investigation contributes insights into tailored interventions for atypical anorexia nervosa and enriches the understanding of this complex disorder's dynamics.
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Affiliation(s)
- Paolo Meneguzzo
- Department of Neuroscience, University of Padova, Padova, Italy
- Padova Neuroscience Center, University of Padova, Padova, Italy
| | | | - Alice Garolla
- Eating Disorders Unit, Casa di Cura "Villa Margherita", Italy
| | - Federica Tozzi
- Research & Development, Stremble Ventures, Limassol, Cyprus
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Gibson D, Stein A, Khatri V, Wesselink D, Sitko S, Mehler PS. Associations between low body weight, weight loss, and medical instability in adults with eating disorders. Int J Eat Disord 2024; 57:869-878. [PMID: 38183342 DOI: 10.1002/eat.24129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 12/19/2023] [Accepted: 12/19/2023] [Indexed: 01/08/2024]
Abstract
OBJECTIVE The physical complications of atypical anorexia nervosa remain understudied, with most studies completed in adolescents. This study seeks to examine the impact of various weight measures as predictors of medical instability in a large cohort of adult eating disorder patients. METHODS In this retrospective cohort study, the impact of admission body mass index (BMI), weight suppression, and recent weight loss (the rate of weight loss within the last 12 months) toward the development of medical complications of malnutrition were examined. Multivariable logistic regression assessed the association of binary clinical outcomes of interest with recent weight loss and weight suppression (adjusting for age, admission BMI, gender, and purging behaviors). Odds ratios (OR) and 99% confidence intervals were reported. RESULTS Greater recent weight loss increased the odds of developing low prealbumin and reduced hand grip strength. A greater weight suppression was associated with increased likelihood of amenorrhea, reduced systolic blood pressure, nadir hemoglobin, and weekly weight gain upon nutritional rehabilitation. Lower admission BMI was predictive of all the medical outcomes examined, with the exception of bradycardia, and was generally the strongest predictor based on standardized coefficients. DISCUSSION Recent weight loss and weight suppression are predictive of some of the physiologic changes of malnutrition, although low BMI is seemingly the greatest predictor for the development of these complications. These findings suggest that some patients with aggressive weight suppression and/or acute weight loss would benefit from medical stabilization, although this needs to be further defined. PUBLIC SIGNIFICANCE In adults, low BMI seems to be a better predictor of medical complications than weight suppression or aggressive recent weight loss. In adults, greater weight suppression is associated with increased likelihood of amenorrhea, reduced systolic blood pressure, nadir hemoglobin, and weight gain upon nutritional rehabilitation.
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Affiliation(s)
- Dennis Gibson
- ACUTE Center for Eating Disorders and Severe Malnutrition at Denver Health, Denver, Colorado, USA
- Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Amy Stein
- Center for Health Systems Research, Denver Health and Hospitals, Denver, Colorado, USA
| | - Vishnupriya Khatri
- ACUTE Center for Eating Disorders and Severe Malnutrition at Denver Health, Denver, Colorado, USA
- Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Delaney Wesselink
- ACUTE Center for Eating Disorders and Severe Malnutrition at Denver Health, Denver, Colorado, USA
| | - Shelby Sitko
- ACUTE Center for Eating Disorders and Severe Malnutrition at Denver Health, Denver, Colorado, USA
| | - Philip S Mehler
- ACUTE Center for Eating Disorders and Severe Malnutrition at Denver Health, Denver, Colorado, USA
- Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA
- Eating Recovery Center, Denver, Colorado, USA
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6
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Khalil KM, El-Shater S, Rizk H, Khalifa E. Embryonic thermal manipulation of poultry birds: Lucrative and deleterious effects. J Anim Physiol Anim Nutr (Berl) 2024; 108:346-356. [PMID: 37885333 DOI: 10.1111/jpn.13896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 10/13/2023] [Accepted: 10/14/2023] [Indexed: 10/28/2023]
Abstract
The major efforts to improve feed conversion, increase the body weight and breast muscle yield of broilers have been focused on feeding and management at the post hatch period. However, incubation temperature is the most significant factor for the egg hatching rate, chick quality, and post hatch performance. Therefore, incubation factors affecting the performance should be taken with necessary precautions. Incubation temperature not only affects the early development of the hatchlings but also has a lasting impact on the characteristics of the chicks, such as final body weight and meat quality traits. This article provides an overview about embryonic thermal manipulation (TM) of domestic fowls and review the lucrative and deleterious effects of embryonic TM on embryo development, muscle growth, thermotolerance acquisition, and immunity.
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Affiliation(s)
- Karim M Khalil
- Department of Veterinary Medicine, College of Applied and Health Sciences, A'Sharqiyah University, Ibra, Sultanate of Oman
- Anatomy and Embryology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Saad El-Shater
- Anatomy and Embryology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Hamdy Rizk
- Anatomy and Embryology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Elsayed Khalifa
- Anatomy and Embryology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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7
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Carrillo B, Fernandez-Garcia JM, García-Úbeda R, Grassi D, Primo U, Blanco N, Ballesta A, Arevalo MA, Collado P, Pinos H. Neonatal inhibition of androgen activity alters the programming of body weight and orexinergic peptides differentially in male and female rats. Brain Res Bull 2024; 208:110898. [PMID: 38360152 DOI: 10.1016/j.brainresbull.2024.110898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/02/2024] [Accepted: 02/07/2024] [Indexed: 02/17/2024]
Abstract
The involvement of androgens in the regulation of energy metabolism has been demonstrated. The main objective of the present research was to study the involvement of androgens in both the programming of energy metabolism and the regulatory peptides associated with feeding. For this purpose, androgen receptors and the main metabolic pathways of testosterone were inhibited during the first five days of postnatal life in male and female Wistar rats. Pups received a daily s.c. injection from the day of birth, postnatal day (P) 1, to P5 of Flutamide (a competitive inhibitor of androgen receptors), Letrozole (an aromatase inhibitor), Finasteride (a 5-alpha-reductase inhibitor) or vehicle. Body weight, food intake and fat pads were measured. Moreover, hypothalamic Agouti-related peptide (AgRP), neuropeptide Y (NPY), orexin, and proopiomelanocortin (POMC) were analyzed by quantitative real-time polymerase chain reaction assay. The inhibition of androgenic activity during the first five days of life produced a significant decrease in body weight in females at P90 but did not affect this parameter in males. Moreover, the inhibition of aromatase decreased hypothalamic AgRP mRNA levels in males while the inhibition of 5α-reductase decreased hypothalamic AgRP and orexin mRNA levels in female rats. Finally, food intake and visceral fat, but not subcutaneous fat, were affected in both males and females depending on which testosterone metabolic pathway was inhibited. Our results highlight the differential involvement of androgens in the programming of energy metabolism as well as the AgRP and orexin systems during development in male and female rats.
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Affiliation(s)
- Beatriz Carrillo
- Department of Psychobiology, National University of Distance Education, Madrid, Spain; University Institute of Research-UNED-Institute of Health Carlos III (IMIENS), Madrid, Spain
| | - Jose Manuel Fernandez-Garcia
- University Institute of Research-UNED-Institute of Health Carlos III (IMIENS), Madrid, Spain; Faculty of Psychology, Universidad Villanueva Madrid, Madrid, Spain
| | - Rocío García-Úbeda
- Department of Psychobiology, National University of Distance Education, Madrid, Spain
| | - Daniela Grassi
- Department of Anatomy, Histology and Neuroscience, Autonomous University of Madrid, Madrid, Spain
| | - Ulises Primo
- Department of Psychobiology, National University of Distance Education, Madrid, Spain
| | - Noemí Blanco
- Department of Psychobiology, National University of Distance Education, Madrid, Spain; University Institute of Research-UNED-Institute of Health Carlos III (IMIENS), Madrid, Spain
| | - Antonio Ballesta
- Department of Psychobiology, Centro de Enseñanza Superior Cardenal Cisneros, Spain
| | - Maria Angeles Arevalo
- Neuroactive Steroids Lab, Cajal Institute, CSIC, Madrid, Spain; Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
| | - Paloma Collado
- Department of Psychobiology, National University of Distance Education, Madrid, Spain; University Institute of Research-UNED-Institute of Health Carlos III (IMIENS), Madrid, Spain
| | - Helena Pinos
- Department of Psychobiology, National University of Distance Education, Madrid, Spain; University Institute of Research-UNED-Institute of Health Carlos III (IMIENS), Madrid, Spain.
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Tu K, Zhou M, Tan JJ, Markos L, Cloud C, Zhou M, Hayashi N, Rawson NE, Margolskee RF, Wang H. Chronic social defeat stress broadly inhibits gene expression in the peripheral taste system and alters taste responses in mice. Physiol Behav 2024; 275:114446. [PMID: 38128683 PMCID: PMC10843841 DOI: 10.1016/j.physbeh.2023.114446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 12/16/2023] [Accepted: 12/18/2023] [Indexed: 12/23/2023]
Abstract
Human studies have linked stress exposure to unhealthy eating behavior. However, the mechanisms that drive stress-associated changes in eating behavior remain incompletely understood. The sense of taste plays important roles in food preference and intake. In this study, we use a chronic social defeat stress (CSDS) model in mice to address whether chronic stress impacts taste sensation and gene expression in taste buds and the gut. Our results showed that CSDS significantly elevated circulating levels of corticosterone and acylated ghrelin while lowering levels of leptin, suggesting a change in metabolic hormones that promotes food consumption. Stressed mice substantially increased their intake of food and water 3-5 days after the stress onset and gradually gained more body weight than that of controls. Moreover, CSDS significantly decreased the expression of multiple taste receptors and signaling molecules in taste buds and reduced mRNA levels of several taste progenitor/stem cell markers and regulators. Stressed mice showed significantly reduced sensitivity and response to umami and sweet taste compounds in behavioral tests. In the small intestine, the mRNA levels of Gnat3 and Tas1r2 were elevated in CSDS mice. The increased Gnat3 was mostly localized in a type of Gnat3+ and CD45+ immune cells, suggesting changes of immune cell distribution in the gut of stressed mice. Together, our study revealed broad effects of CSDS on the peripheral taste system and the gut, which may contribute to stress-associated changes in eating behavior.
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Affiliation(s)
- Katelyn Tu
- The Monell Chemical Senses Center, 3500 Market St., Philadelphia, PA 19104, USA; Haverford College, 370 Lancaster Ave., Haverford, PA 19041, USA
| | - Mary Zhou
- The Monell Chemical Senses Center, 3500 Market St., Philadelphia, PA 19104, USA; Haverford College, 370 Lancaster Ave., Haverford, PA 19041, USA
| | - Jidong J Tan
- The Monell Chemical Senses Center, 3500 Market St., Philadelphia, PA 19104, USA; Department of Chemistry, the University of Pennsylvania, 231 S. 34 St., Philadelphia, PA 19104, USA
| | - Loza Markos
- The Monell Chemical Senses Center, 3500 Market St., Philadelphia, PA 19104, USA
| | - Cameron Cloud
- The Monell Chemical Senses Center, 3500 Market St., Philadelphia, PA 19104, USA; Lafayette College, 730 High St., Easton, PA 18042, USA
| | - Minliang Zhou
- The Monell Chemical Senses Center, 3500 Market St., Philadelphia, PA 19104, USA
| | - Naoki Hayashi
- Department of Applied Biological Chemistry, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Nancy E Rawson
- The Monell Chemical Senses Center, 3500 Market St., Philadelphia, PA 19104, USA
| | - Robert F Margolskee
- The Monell Chemical Senses Center, 3500 Market St., Philadelphia, PA 19104, USA
| | - Hong Wang
- The Monell Chemical Senses Center, 3500 Market St., Philadelphia, PA 19104, USA.
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Lund C, Ranea-Robles P, Falk S, Rausch DM, Skovbjerg G, Vibe-Petersen VK, Krauth N, Skytte JL, Vana V, Roostalu U, Pers TH, Lund J, Clemmensen C. Protection against overfeeding-induced weight gain is preserved in obesity but does not require FGF21 or MC4R. Nat Commun 2024; 15:1192. [PMID: 38331907 PMCID: PMC10853283 DOI: 10.1038/s41467-024-45223-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 01/18/2024] [Indexed: 02/10/2024] Open
Abstract
Overfeeding triggers homeostatic compensatory mechanisms that counteract weight gain. Here, we show that both lean and diet-induced obese (DIO) male mice exhibit a potent and prolonged inhibition of voluntary food intake following overfeeding-induced weight gain. We reveal that FGF21 is dispensable for this defense against weight gain. Targeted proteomics unveiled novel circulating factors linked to overfeeding, including the protease legumain (LGMN). Administration of recombinant LGMN lowers body weight and food intake in DIO mice. The protection against weight gain is also associated with reduced vascularization in the hypothalamus and sustained reductions in the expression of the orexigenic neuropeptide genes, Npy and Agrp, suggesting a role for hypothalamic signaling in this homeostatic recovery from overfeeding. Overfeeding of melanocortin 4 receptor (MC4R) KO mice shows that these mice can suppress voluntary food intake and counteract the enforced weight gain, although their rate of weight recovery is impaired. Collectively, these findings demonstrate that the defense against overfeeding-induced weight gain remains intact in obesity and involves mechanisms independent of both FGF21 and MC4R.
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Affiliation(s)
- Camilla Lund
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Pablo Ranea-Robles
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Sarah Falk
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Dylan M Rausch
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Grethe Skovbjerg
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
- Gubra ApS, Hørsholm, Denmark
| | | | - Nathalie Krauth
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | | | - Vasiliki Vana
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | | | - Tune H Pers
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Jens Lund
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Christoffer Clemmensen
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark.
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10
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Mititelu M, Olteanu G, Neacșu SM, Stoicescu I, Dumitrescu DE, Gheorghe E, Tarcea M, Busnatu ȘS, Ioniță-Mîndrican CB, Tafuni O, Belu I, Popescu A, Lupu S, Lupu CE. Incidence of Urinary Infections and Behavioral Risk Factors. Nutrients 2024; 16:446. [PMID: 38337730 PMCID: PMC10856807 DOI: 10.3390/nu16030446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
This evaluation of the impact of behavioral risk factors on the incidence of urinary infections was based on a questionnaire in which 1103 respondents, predominantly women (883), participated. From the statistical processing of the data, it was observed that 598 of the respondents were of normal weight; the rest, more than half, were underweight or overweight (χ2 = 32.46, p < 0.001), with male respondents being predominantly overweight or obese (169 out of a total of 220). Most of the respondents were young (χ2 = 15.45, p < 0.001), under the age of 45 (840). According to the processed data, it was found that respondents in the age group of 26-35 years showed the greatest vulnerability to recurrent urinary infections, while the age group of 18-25 years recorded the highest number of responses related to the rare presence or even absence of episodes of urinary infections. A body weight-related vulnerability was also noted among the respondents; the majority of obese people declared that they face frequent episodes of urinary infections. Regarding diet quality, 210 respondents reported an adherence to an unhealthy diet, 620 to a moderately healthy diet, and 273 to a healthy diet. Of the respondents who adhered to a healthy diet, 223 were women (χ2 = 2.55, p = 0.279). There was a close connection between diet quality and the frequency of urinary infections: from the statistical processing of the data, it was observed that the highest percentage of respondents who rarely (57.14%) or never got urinary infections (29.30%) were among those who adhered to a healthy diet, and the highest percentage of those who declared that they often got urinary infections were among those with increased adherence to an unhealthy diet (χ2 = 13.46, p = 0.036). The results of this study highlight a strong impact of obesity, reduced consumption of fruit and vegetables, and sedentary lifestyle on the risk of recurring urinary infections.
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Affiliation(s)
- Magdalena Mititelu
- Department of Clinical Laboratory and Food Safety, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 020956 Bucharest, Romania; (M.M.); (G.O.)
| | - Gabriel Olteanu
- Department of Clinical Laboratory and Food Safety, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 020956 Bucharest, Romania; (M.M.); (G.O.)
| | - Sorinel Marius Neacșu
- Department of Pharmaceutical Technology and Bio-Pharmacy, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 020945 Bucharest, Romania
| | - Iuliana Stoicescu
- Department of Chemistry and Quality Control of Drugs, Faculty of Pharmacy, Ovidius University of Constanta, 900470 Constanta, Romania;
| | - Denisa-Elena Dumitrescu
- Department of Organic Chemistry, Faculty of Pharmacy, Ovidius University of Constanta, 900470 Constanta, Romania;
| | - Emma Gheorghe
- Department of Preclinical Sciences I—Histology, Faculty of Medicine, Ovidius University of Constanta, 900470 Constanta, Romania
| | - Monica Tarcea
- Department of Community Nutrition and Food Safety, G.E. Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, 540142 Mures, Romania;
| | - Ștefan Sebastian Busnatu
- Department of Cardio-Thoracic Pathology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania;
| | - Corina-Bianca Ioniță-Mîndrican
- Department of Toxicology, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 020945 Bucharest, Romania;
| | - Ovidiu Tafuni
- Department of Preventive Medicine, Nicolae Testemițanu State University of Medicine and Pharmacy from the Republic of Moldova, MD-2004 Chisinau, Moldova;
| | - Ionela Belu
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Medicine and Pharmacy of Craiova, 200638 Craiova, Romania;
| | - Antoanela Popescu
- Department of Pharmacognosy, Faculty of Pharmacy, Ovidius University of Constanta, 900470 Constanta, Romania;
| | - Sergiu Lupu
- Department of Navigation and Naval Transport, Faculty of Navigation and Naval Management, Mircea cel Batran Naval Academy, 900218 Constanta, Romania;
| | - Carmen Elena Lupu
- Department of Mathematics and Informatics, Faculty of Pharmacy, Ovidius University of Constanta, 900001 Constanta, Romania;
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11
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Leinen M, Grandy EF, Gebel LMU, Santana TM, Rodriguez AL, Singh SK, Fernandez MI, Dalugdug JC, Garcia-Colon EM, Lybeshari K, Alexander DR, Maura MI, Gonzalez MDC, De Paula Cunha Almeida C, Anyaso-Samuel S, Datta S, Schiefer MA. Bilateral Subdiaphragmatic Vagal Nerve Stimulation Using a Novel Waveform Decreases Body Weight, Food Consumption, Adiposity, and Activity in Obesity-Prone Rats. Obes Surg 2024; 34:1-14. [PMID: 38040984 PMCID: PMC10781827 DOI: 10.1007/s11695-023-06957-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 11/05/2023] [Accepted: 11/13/2023] [Indexed: 12/03/2023]
Abstract
INTRODUCTION Obesity affects millions of Americans. The vagal nerves convey the degree of stomach fullness to the brain via afferent visceral fibers. Studies have found that vagal nerve stimulation (VNS) promotes reduced food intake, causes weight loss, and reduces cravings and appetite. METHODS Here, we evaluate the efficacy of a novel stimulus waveform applied bilaterally to the subdiaphragmatic vagal nerve stimulation (sVNS) for almost 13 weeks. A stimulating cuff electrode was implanted in obesity-prone Sprague Dawley rats maintained on a high-fat diet. Body weight, food consumption, and daily movement were tracked over time and compared against three control groups: sham rats on a high-fat diet that were implanted with non-operational cuffs, rats on a high-fat diet that were not implanted, and rats on a standard diet that were not implanted. RESULTS Results showed that rats on a high-fat diet that received sVNS attained a similar weight to rats on a standard diet due primarily to a reduction in daily caloric intake. Rats on a high-fat diet that received sVNS had significantly less body fat than other high-fat controls. Rats receiving sVNS also began moving a similar amount to rats on the standard diet. CONCLUSION Results from this study suggest that bilateral subdiaphragmatic vagal nerve stimulation can alter the rate of growth of rats maintained on a high-fat diet through a reduction in daily caloric intake, returning their body weight to that which is similar to rats on a standard diet over approximately 13 weeks.
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Affiliation(s)
- Monique Leinen
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, 1601 SW Archer Rd, Gainesville, FL, 32608, USA
| | - Elise F Grandy
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, 1601 SW Archer Rd, Gainesville, FL, 32608, USA
| | - Lourdes M Ubeira Gebel
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, 1601 SW Archer Rd, Gainesville, FL, 32608, USA
| | - Tahimi Machin Santana
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, 1601 SW Archer Rd, Gainesville, FL, 32608, USA
| | - Amanda L Rodriguez
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, 1601 SW Archer Rd, Gainesville, FL, 32608, USA
| | - Sundip K Singh
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, 1601 SW Archer Rd, Gainesville, FL, 32608, USA
| | - Michael I Fernandez
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, 1601 SW Archer Rd, Gainesville, FL, 32608, USA
| | - Justin C Dalugdug
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, 1601 SW Archer Rd, Gainesville, FL, 32608, USA
| | - Elaine M Garcia-Colon
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, 1601 SW Archer Rd, Gainesville, FL, 32608, USA
| | - Kamela Lybeshari
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, 1601 SW Archer Rd, Gainesville, FL, 32608, USA
| | - Daniel R Alexander
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, 1601 SW Archer Rd, Gainesville, FL, 32608, USA
| | - Maria I Maura
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, 1601 SW Archer Rd, Gainesville, FL, 32608, USA
| | - Maria D Cabrera Gonzalez
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, 1601 SW Archer Rd, Gainesville, FL, 32608, USA
| | | | - Samuel Anyaso-Samuel
- Department of Biostatistics, University of Florida, 2004 Mowry Rd, 5Th Fl, Gainesville, FL, 32603, USA
| | - Somnath Datta
- Department of Biostatistics, University of Florida, 2004 Mowry Rd, 5Th Fl, Gainesville, FL, 32603, USA
| | - Matthew A Schiefer
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, 1601 SW Archer Rd, Gainesville, FL, 32608, USA.
- Department of Biomedical Engineering, University of Florida, 1275 Center Dr, Gainesville, FL, 32611, USA.
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12
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Wada N, Ushiroda S, Satoh R, Sakurai M, Kawada S, Luziga C, Ichikawa H. Allometric scaling of skin weight and thickness to body weight in relation to taxonomic orders and habitats in mammals. Anat Histol Embryol 2024; 53:e12967. [PMID: 37767821 DOI: 10.1111/ahe.12967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023]
Abstract
Skin is the largest organ in a mammal body, and it exhibits most significant range of adaptations to different habitats. It is a complex, biological composite structure, consisting of epidermis, dermis and subcutaneous tissues and is used for the therapeutic application of medical devices to improve healthcare. Extensive studies have been performed on the roles of the skin; however, little is known on its physiological characteristics in relation to body size among different species. The purpose of this study was therefore to evaluate the allometric scaling of skin weight (SW) and thickness (ST) to body weight (BW) in relation to genetics and habitats. Also analysed the relationship of BW to thicknesses of epidermis, dermis and subcutaneous tissues. This study used 249 adult animals of both sexes, belonging to 144 species, clustered in 18 taxonomic orders and five types of habitats. The animals were obtained from various sources in Japan. SW and BW were weighed, and ST was measured using a calliper followed by data analysis. Results showed that SW and ST were related to BW [log SW = 0.969 × logBW - 0636, adjust. R2 : 0.975]. The BW increased with increasing skin dermal thickness (y = 0.3916x + 1.5253, adjust. R2 : 0.6921), slightly with epidermal thickness (y = 0.2495x + 0.3984, adjust. R2 : 0.3402), but not all with the thickness of subcutaneous tissues (y = 0.1454x + 2.2437, adjust. R2 : 0.0752). The ratio of SW to BW (SW/BW) distributed over a large range from 0.06 to 0.64 values and varied among animal taxonomic orders and their dwelling habitats. Close relationship of BW to SW/BW was observed in species weighing ≥200 g but not in species weighing <200 g. In conclusion, SW and ST in mammals are determined by BW. The SW/BW varies based on BW, taxonomic orders and habitat and is large in small mammals weighing ≥200 g to provide a mechanism used for survival strategy.
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Affiliation(s)
- Naomi Wada
- Department of Animal System Physiology, Yamaguchi University, Yamaguchi, Japan
| | - Saki Ushiroda
- Department of Animal System Physiology, Yamaguchi University, Yamaguchi, Japan
| | - Ran Satoh
- Department of Animal System Physiology, Yamaguchi University, Yamaguchi, Japan
| | - Masashi Sakurai
- Department of Veterinary Pathology, Yamaguchi University, Yamaguchi, Japan
| | | | - Claudius Luziga
- Department of Veterinary Anatomy and Pathology, College of Veterinary and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
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13
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Fabi M, Meli M, Leardini D, Andreozzi L, Maltoni G, Bitelli M, Pierantoni L, Zarbo C, Dondi A, Bertulli C, Bernardini L, Pession A, Lanari M. Body Mass Index (BMI) Is the Strongest Predictor of Systemic Hypertension and Cardiac Mass in a Cohort of Children. Nutrients 2023; 15:5079. [PMID: 38140337 PMCID: PMC10745364 DOI: 10.3390/nu15245079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
BACKGROUND Hypertension (HTN) is a well-established cardiovascular (CV) risk factor in adults. The presence of HTN in children appears to predict its persistence into adulthood. Early diagnosis of HTN is crucial to reduce CV morbidity before the onset of organ damage. AIM The aim of this study is to investigate cardiac damage in HTN, its risk factors (RFs), and evolution. METHODS We conducted a prospective/retrospective study involving children referred to the Childhood Hypertension Outpatient Clinic. This study included clinical and echocardiographic assessments of cardiac morphology and function at three time points: enrollment (T0) and follow-up (T1 and T2). RESULTS Ninety-two patients (mean age 11.4 ± 3 years) were enrolled. Cardiac eccentric and concentric hypertrophy were present in 17.9% and 9%, respectively, with remodeling in 10.5%. Overweight/obese subjects exhibited significantly higher systolic blood pressure (SBP), frequency of HTN, and body mass index (BMI) at T0 compared with patients with chronic kidney disease (CKD). SBP and BMI persisted more during follow-up. Normal-weight vs. overweight/obese patients were significantly more likely to have normal geometry. Positive correlations were found between BMI and left ventricular (LV) mass at T0, BMI and SBP at T0 and T1. Gender, BMI, SBP, and diastolic blood pressure (DBP) significantly predicted LV mass index (LVMI), but only BMI added significance to the prediction. During follow-up, the variation of BMI positively correlated with the variation of SBP, but not with LVMI. CONCLUSIONS In our cohort, body weight is strongly associated with HTN and cardiac mass. Importantly, the variation in body weight has a more significant impact on the consensual variation of cardiac mass than blood pressure (BP) values. A strict intervention on weight control through diet and a healthy lifestyle from early ages might reduce the burden of CV morbidity in later years.
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Affiliation(s)
- Marianna Fabi
- Pediatric Emergency Unit, IRCCS Azienda Ospedaliero—Universitaria di Bologna, 40138 Bologna, Italy; (M.F.); (L.A.); (L.P.); (A.D.); (M.L.)
| | - Matteo Meli
- Specialty School of Paediatrics, Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy; (M.B.); (C.Z.); (L.B.)
| | - Davide Leardini
- Pediatric Hematology and Oncology, IRCCS Azienda Ospedaliero—Universitaria di Bologna, 40138 Bologna, Italy;
| | - Laura Andreozzi
- Pediatric Emergency Unit, IRCCS Azienda Ospedaliero—Universitaria di Bologna, 40138 Bologna, Italy; (M.F.); (L.A.); (L.P.); (A.D.); (M.L.)
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138 Bologna, Italy
| | - Giulio Maltoni
- Pediatric Unit, IRCCS Azienda Ospedaliero—Universitaria di Bologna, 40138 Bologna, Italy; (C.B.); (A.P.)
| | - Maria Bitelli
- Specialty School of Paediatrics, Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy; (M.B.); (C.Z.); (L.B.)
| | - Luca Pierantoni
- Pediatric Emergency Unit, IRCCS Azienda Ospedaliero—Universitaria di Bologna, 40138 Bologna, Italy; (M.F.); (L.A.); (L.P.); (A.D.); (M.L.)
| | - Chiara Zarbo
- Specialty School of Paediatrics, Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy; (M.B.); (C.Z.); (L.B.)
| | - Arianna Dondi
- Pediatric Emergency Unit, IRCCS Azienda Ospedaliero—Universitaria di Bologna, 40138 Bologna, Italy; (M.F.); (L.A.); (L.P.); (A.D.); (M.L.)
| | - Cristina Bertulli
- Pediatric Unit, IRCCS Azienda Ospedaliero—Universitaria di Bologna, 40138 Bologna, Italy; (C.B.); (A.P.)
| | - Luca Bernardini
- Specialty School of Paediatrics, Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy; (M.B.); (C.Z.); (L.B.)
| | - Andrea Pession
- Pediatric Unit, IRCCS Azienda Ospedaliero—Universitaria di Bologna, 40138 Bologna, Italy; (C.B.); (A.P.)
| | - Marcello Lanari
- Pediatric Emergency Unit, IRCCS Azienda Ospedaliero—Universitaria di Bologna, 40138 Bologna, Italy; (M.F.); (L.A.); (L.P.); (A.D.); (M.L.)
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, 40138 Bologna, Italy
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14
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Ceja G, Boerman JP, Neves RC, Jorgensen MW, Johnson JS. l-Glutamine supplementation reduces gastrointestinal permeability and biomarkers of physiological stress in preweaning Holstein heifer calves. J Dairy Sci 2023; 106:9663-9676. [PMID: 37641349 DOI: 10.3168/jds.2023-23334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 05/16/2023] [Indexed: 08/31/2023]
Abstract
l-Glutamine supplementation improves gastrointestinal and immune function in dairy calves during controlled immune and stress challenges. However, it is unknown whether supplementing milk replacer (MR) with l-glutamine improves preweaning dairy calf health and welfare under production conditions. Therefore, the study objective was to evaluate the effects of supplementing MR with l-glutamine on gastrointestinal permeability, immune function, growth performance, postabsorptive metabolic biomarkers, and physiological stress response in preweaning dairy calves. In 3 repetitions, Holstein heifer calves (n = 30; 1.5 ± 0.5 d old; 37.1 ± 0.86 kg body weight) were blocked by serum total protein, body weight, and age, and provided MR (3.8 L/calf per d; 24% CP, 17% fat, 12.5% solids) supplemented with l-glutamine (GLN; 10g/kg MR powder; n = 5 calves/repetition) or nonsupplemented (NSMR; n = 5 calves/repetition). Calves were individually housed with ad libitum starter grain and water access until weaning (56.4 ± 0.5 d old). At 1 and 6 wk of age, urinary catheters were placed, and calves were orally dosed with 1 L of chromium (Cr)-EDTA. Urine samples were collected over a 24-h period for Cr output analysis as an in vivo biomarker of gastrointestinal permeability. Blood was collected on study d 1, 5, 7, 14, 21, 42, and 56 to measure white blood cell counts, cortisol, insulin, glucose, nonesterified fatty acids, serum amyloid A, haptoglobin, and neutrophil: lymphocytes. Two study intervals were used in the statistical analyses, representing greater (P1; wk 1-3) and reduced (P2; wk 4-8) enteric disease susceptibility. Data were analyzed using PROC GLIMMIX in SAS 9.4 (SAS Institute Inc.) with calf as the experimental unit. Overall, total urinary Cr output was reduced in GLN versus NSMR calves. Total Cr output was reduced at 1 wk of age in GLN versus NSMR calves, but no differences were detected at 6 wk of age. Neutrophil:lymphocyte was decreased both overall and during P2 in GLN versus NSMR calves, and neutrophil counts tended to be reduced in GLN versus NSMR calves during P2. No MR treatment differences were detected for average daily feed intake, average daily gain, body measurements, postabsorptive metabolic biomarkers, disease scores, and therapeutic treatments between GLN and NSMR calves. In summary, l-glutamine supplementation reduced gastrointestinal permeability and biomarkers of physiological stress in preweaning Holstein heifer calves.
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Affiliation(s)
- Guadalupe Ceja
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907; USDA-Agricultural Research Service (ARS) Livestock Behavior Research Unit, West Lafayette, IN 47907
| | | | - Rafael C Neves
- Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, IN 47907
| | - Matthew W Jorgensen
- USDA-Agricultural Research Service (ARS) Livestock Behavior Research Unit, West Lafayette, IN 47907
| | - Jay S Johnson
- USDA-Agricultural Research Service (ARS) Livestock Behavior Research Unit, West Lafayette, IN 47907.
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15
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Peña-Villalobos I, Otarola FA, Arancibia D, Sabat P, Palma V. Prenatal caloric restriction adjusts the energy homeostasis and behavior in response to acute and chronic variations in food availability in adulthood. J Comp Physiol B 2023; 193:677-688. [PMID: 37831173 DOI: 10.1007/s00360-023-01520-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 09/15/2023] [Indexed: 10/14/2023]
Abstract
Fetal metabolic programming produced by unfavorable prenatal nutritional conditions leads to the development of a disorder called "thrifty phenotype", which is associated with pathologies such as diabetes and obesity in adulthood. However, from an ecophysiological approach, few studies have addressed the development of thrifty phenotypes in terms of energy. This might represent an adaptive advantage against caloric deficiency conditions extending into adulthood. The objective of this study is to investigate the potential adaptive value of the thrifty phenotype expression through prenatal programming in a rodent model experiencing varying dietary conditions in different temporal contexts. To fill this gap, adult males of Mus musculus (BALB/C) from two maternal pregnancy groups were analyzed: control (ad libitum feeding) and caloric restriction from day 10 of gestation (70% restriction). Adult offspring of these groups were split further for two experiments: acute food deprivation and chronic caloric restriction at 60%. The acute food deprivation was performed for 24, 48 or 72 h while the caloric restriction regime was sustained for 20 days. For each experiment, morphological variables, such as body and organ mass, and gene expression related to lipid and carbohydrate metabolism from the liver and brain, were evaluated. In chronic caloric restriction, behavioral tests (open-field test and home-cage behavior) were performed. Our results indicate that under acute deprivation, the liver mass and triglyceride content remained unchanged in individuals subjected to prenatal restriction, in contrast to the reduction experienced by the control group. The latter is associated with the expression of the key genes involved in energy homeostasis (Pepck, Pparα/Pparγ), indicating a differential use of nutritional resources. In addition, thrifty animals, subjected to chronic caloric restriction, showed a severe reduction in locomotor and gluconeogenic activity, which is consistent with the regulatory role of Sirt1 and its downstream targets Mao and Pepck. Our results reveal that prenatal caloric restriction translates into a sparing metabolism in response to acute and chronic lack of food in adulthood.
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Affiliation(s)
- Isaac Peña-Villalobos
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile.
- Laboratorio de Células troncales y Biología del Desarrollo, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago, Chile.
| | - Fabiola A Otarola
- Laboratorio de Células troncales y Biología del Desarrollo, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - David Arancibia
- Laboratorio de Células troncales y Biología del Desarrollo, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Pablo Sabat
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
- Center of Applied Ecology and Sustainability (CAPES), Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Verónica Palma
- Laboratorio de Células troncales y Biología del Desarrollo, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago, Chile.
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Zlatkovic J, Dalmau Gasull A, Hägg D, Font-Gironès F, Bellman J, Meister B, Palsdottir V, Ruud J, Ohlsson C, Dickson SL, Anesten F, Jansson JO. Reduction of body weight by increased loading is associated with activation of norepinephrine neurones in the medial nucleus of the solitary tract. J Neuroendocrinol 2023; 35:e13352. [PMID: 37885347 DOI: 10.1111/jne.13352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/28/2023]
Abstract
We previously provided evidence supporting the existence of a novel leptin-independent body weight homeostat ("the gravitostat") that senses body weight and then initiates a homeostatic feed-back regulation of body weight. We, herein, hypothesize that this feed-back regulation involves a CNS mechanism. To identify populations of neurones of importance for the putative feed-back signal induced by increased loading, high-fat diet-fed rats or mice were implanted intraperitoneally or subcutaneously with capsules weighing ∼15% (Load) or ∼2.5% (Control) of body weight. At 3-5 days after implantation, neuronal activation was assessed in different parts of the brain/brainstem by immunohistochemical detection of FosB. Implantation of weighted capsules, both subcutaneous and intraperitoneal, induced FosB in specific neurones in the medial nucleus of the solitary tract (mNTS), known to integrate information about the metabolic status of the body. These neurones also expressed tyrosine hydroxylase (TH) and dopamine-beta-hydroxylase (DbH), a pattern typical of norepinephrine neurones. In functional studies, we specifically ablated norepinephrine neurones in mNTS, which attenuated the feed-back regulation of increased load on body weight and food intake. In conclusion, increased load appears to reduce body weight and food intake via activation of norepinephrine neurones in the mNTS.
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Affiliation(s)
- Jovana Zlatkovic
- Departement of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | | | - Daniel Hägg
- Departement of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Ferran Font-Gironès
- Departement of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Jakob Bellman
- Departement of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Björn Meister
- Institute of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | | | - Johan Ruud
- Departement of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Claes Ohlsson
- Center for Bone and Arthritis Research, University of Gothenburg, Gothenburg, Sweden
| | - Suzanne L Dickson
- Departement of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Fredrik Anesten
- Departement of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - John-Olov Jansson
- Departement of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
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17
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Harris E. Study: Carbohydrate Quality Matters for Body Weight. JAMA 2023; 330:1723. [PMID: 37878330 DOI: 10.1001/jama.2023.20629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
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18
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Hounchonou HF, Tang H, Paulat R, Kühn A, Spranger J, van Riesen C, Maurer L. Continuous deep brain stimulation of the nucleus accumbens reduces food intake but does not affect body weight in mice fed a high-fat diet. Sci Rep 2023; 13:18952. [PMID: 37919311 PMCID: PMC10622429 DOI: 10.1038/s41598-023-45511-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 10/20/2023] [Indexed: 11/04/2023] Open
Abstract
Obesity is an enormous health problem, and many patients do not respond to any of the available therapies. Deep brain stimulation (DBS) is currently investigated as a potential treatment for morbid obesity. In this study, we tested the hypothesis that high-frequency DBS targeting the nucleus accumbens (NAc) shell region reduces food intake and weight gain in mice fed a high-fat diet. We implanted male C57BL/6J mice with bilateral electrodes and a head-mounted microstimulator enabling continuous stimulation for up to 5 weeks. In successfully operated animals (n = 9 per group, high-frequency vs. sham stimulation), we investigated immediate and long-term stimulation effects on metabolic and behavioral phenotypes. Here we show that stimulation acutely induced a transient reduction in energy expenditure and locomotor activity but did not significantly affect spontaneous food intake, social interaction, anxiety or exploratory behaviors. In contrast, continuous stimulation over 5 weeks led to a decrease in food intake and thigmotaxis (the tendency to stay near walls in an open lit arena). However, chronic stimulation did not substantially change weight gain in mice fed a high-fat diet. Our results do not support the use of continuous high-frequency NAc shell DBS as a treatment for obesity. However, DBS can alter obesity-related parameters with differing short and long-term effects. Therefore, future research should employ time and context-sensitive experimental designs to assess the potential of DBS for clinical translation in this area.
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Affiliation(s)
- Harold F Hounchonou
- Department of Endocrinology and Metabolism, Charité University Medicine Berlin, Berlin, Germany
- Max Rubner Center for Cardiovascular Metabolic Renal Research, Charité University Medicine Berlin, Berlin, Germany
- Department of Neurosurgery, Hannover Medical School, Hannover, Germany
| | - Hui Tang
- Department of Endocrinology and Metabolism, Charité University Medicine Berlin, Berlin, Germany
- Max Rubner Center for Cardiovascular Metabolic Renal Research, Charité University Medicine Berlin, Berlin, Germany
| | - Raik Paulat
- Movement Disorder and Neuromodulation Unit, Department of Neurology, Charité University Medicine Berlin, Berlin, Germany
| | - Andrea Kühn
- Movement Disorder and Neuromodulation Unit, Department of Neurology, Charité University Medicine Berlin, Berlin, Germany
| | - Joachim Spranger
- Department of Endocrinology and Metabolism, Charité University Medicine Berlin, Berlin, Germany
- Max Rubner Center for Cardiovascular Metabolic Renal Research, Charité University Medicine Berlin, Berlin, Germany
| | - Christoph van Riesen
- Movement Disorder and Neuromodulation Unit, Department of Neurology, Charité University Medicine Berlin, Berlin, Germany
- Department of Neurology, University Medical Center Göttingen, Göttingen, Germany
| | - Lukas Maurer
- Department of Endocrinology and Metabolism, Charité University Medicine Berlin, Berlin, Germany.
- Max Rubner Center for Cardiovascular Metabolic Renal Research, Charité University Medicine Berlin, Berlin, Germany.
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19
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de Souza Marques DC, dos Santos Moraes LR, de Souza Marques MG, Ryal JJ, Santos IC, De Paula Silva Lalucci MP, Mota J, Valdés-Badilla P, Westphal Nardo G, Magnani Branco BH. Effects of 12 Weeks of Family and Individual Multi-Disciplinary Intervention in Overweight and Obese Adolescents under Cardiometabolic Risk Parameters: A Clinical Trial. Int J Environ Res Public Health 2023; 20:6954. [PMID: 37887692 PMCID: PMC10606176 DOI: 10.3390/ijerph20206954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/16/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023]
Abstract
Adolescence is a complex period of human development in which young people are susceptible to unhealthy behaviors, such as physical inactivity and an unbalanced diet. This study aimed to analyze the effects of 12 weeks of multi-disciplinary family and individual intervention on cardiometabolic risk parameters in overweight and obese adolescents and compare sub-groups, considering possible differences between sexes (males vs. females vs. intervention approach). Forty-three adolescents (13.73 ± 2.46 years old) of both sexes were divided into two groups: family group (FG) (n = 21; 14.24 ± 2.61 years old) and individual group (IG) (n = 22; 13.23 ± 2.27 years old). The following parameters were evaluated: anthropometry (body weight, height, waist circumference (WC), hip circumference (HC), abdominal circumference (AC), calculation of body mass index (BMI), and waist-hip ratio (WHR)), body composition (fat mass (FM), lean mass (LM), fat-free mass (FFM), skeletal muscle mass (SMM), body fat percentage (BF), and visceral fat), biochemical measures (fasting glucose, triglycerides (TG), total cholesterol (TC), low-density lipoproteins (LDL-c), and high-density lipoproteins (HDL-c)), and the measurement of systolic and diastolic blood pressure (SBP and DBP) before and after the interventions. The multi-disciplinary interventions occurred for 12 weeks (three days a week lasting 1 h and 30 min, in which 30 min were dedicated to theoretical interventions (nutrition: nutritional education and psychology: psychoeducation) and 1 h to physical exercises. A time effect was observed for LM, FFM, SMM, FM, and HDL-c, with higher values after intervention and a significant decrease for FM, BF, visceral fat, fasting glucose, TG, TC, LDL-c, and DBP (p < 0.05). However, no group, sub-group, or interaction effects were observed when comparing FG, IG, or sexes (p > 0.05). The responses of the present study show that both multi-disciplinary approaches (family and individual) promoted improvement in the body composition indicators, biochemical markers, and DBP of overweight and obese adolescents independently of the intervention group. Given this finding, health professionals, families, and adolescents could choose the type of intervention based on their preferences.
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Affiliation(s)
- Déborah Cristina de Souza Marques
- Postgraduate Program in Health Promotion, Cesumar University, Maringá 87050-390, Brazil; (D.C.d.S.M.); (L.R.d.S.M.); (M.G.d.S.M.); (J.J.R.); (M.P.D.P.S.L.); (B.H.M.B.)
- Interdisciplinary Laboratory of Intervention in Health Promotion, Cesumar Institute of Science, Maringá 87050-390, Brazil;
| | - Lilian Rosana dos Santos Moraes
- Postgraduate Program in Health Promotion, Cesumar University, Maringá 87050-390, Brazil; (D.C.d.S.M.); (L.R.d.S.M.); (M.G.d.S.M.); (J.J.R.); (M.P.D.P.S.L.); (B.H.M.B.)
- Interdisciplinary Laboratory of Intervention in Health Promotion, Cesumar Institute of Science, Maringá 87050-390, Brazil;
| | - Marilene Ghiraldi de Souza Marques
- Postgraduate Program in Health Promotion, Cesumar University, Maringá 87050-390, Brazil; (D.C.d.S.M.); (L.R.d.S.M.); (M.G.d.S.M.); (J.J.R.); (M.P.D.P.S.L.); (B.H.M.B.)
- Interdisciplinary Laboratory of Intervention in Health Promotion, Cesumar Institute of Science, Maringá 87050-390, Brazil;
| | - Joed Jacinto Ryal
- Postgraduate Program in Health Promotion, Cesumar University, Maringá 87050-390, Brazil; (D.C.d.S.M.); (L.R.d.S.M.); (M.G.d.S.M.); (J.J.R.); (M.P.D.P.S.L.); (B.H.M.B.)
- Interdisciplinary Laboratory of Intervention in Health Promotion, Cesumar Institute of Science, Maringá 87050-390, Brazil;
| | - Isabella Caroline Santos
- Interdisciplinary Laboratory of Intervention in Health Promotion, Cesumar Institute of Science, Maringá 87050-390, Brazil;
| | - Marielle Priscila De Paula Silva Lalucci
- Postgraduate Program in Health Promotion, Cesumar University, Maringá 87050-390, Brazil; (D.C.d.S.M.); (L.R.d.S.M.); (M.G.d.S.M.); (J.J.R.); (M.P.D.P.S.L.); (B.H.M.B.)
- Interdisciplinary Laboratory of Intervention in Health Promotion, Cesumar Institute of Science, Maringá 87050-390, Brazil;
| | - Jorge Mota
- Research Centre of Physical Activity, Health, and Leisure, Laboratory for Integrative and Translational Research in Population Health (ITR), Faculty of Sports, University of Porto, 4200-450 Porto, Portugal;
| | - Pablo Valdés-Badilla
- Department of Physical Activity Sciences, Faculty of Education Sciences, Universidad Católica del Maule, Talca 3530000, Chile;
- Sports Coach Career, School of Education, Universidad Viña del Mar, Vinã del Mar 2520000, Chile
| | - Greice Westphal Nardo
- Department of Physical Activity Sciences, Faculty of Education Sciences, Universidad Católica del Maule, Talca 3530000, Chile;
| | - Braulio Henrique Magnani Branco
- Postgraduate Program in Health Promotion, Cesumar University, Maringá 87050-390, Brazil; (D.C.d.S.M.); (L.R.d.S.M.); (M.G.d.S.M.); (J.J.R.); (M.P.D.P.S.L.); (B.H.M.B.)
- Interdisciplinary Laboratory of Intervention in Health Promotion, Cesumar Institute of Science, Maringá 87050-390, Brazil;
- Research Centre of Physical Activity, Health, and Leisure, Laboratory for Integrative and Translational Research in Population Health (ITR), Faculty of Sports, University of Porto, 4200-450 Porto, Portugal;
- Medicine Course, Department of Health Sciences, Cesumar University, Maringá 87050-390, Brazil
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20
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Almehmadi K, Fourman S, Buesing D, Ulrich-Lai YM. Western diet-induced obesity interferes with the HPA axis-blunting effects of palatable food in male rats. Physiol Behav 2023; 270:114285. [PMID: 37392828 PMCID: PMC10529817 DOI: 10.1016/j.physbeh.2023.114285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/22/2023] [Accepted: 06/28/2023] [Indexed: 07/03/2023]
Abstract
Limited intermittent consumption of palatable food reduces HPA axis responses to stress in chow-fed rats, and this effect is dependent on the rewarding properties of the palatable food. However, obesity may be a state of reduced consummatory food reward, suggesting that palatable foods may be less effective at blunting HPA axis reactivity in the context of diet-induced obesity (DIO). To test this hypothesis, adult male Long-Evans rats were given unlimited access to Western (high-fat, high-sugar) diet (WD) vs. normal chow (controls). After 8 weeks of diet exposure, rats were given limited sucrose intake (LSI) consisting of additional twice-daily access to a small amount (4 ml) of either 3% or 30% sucrose drink, or water (controls) for 2 weeks. Rats then received an acute restraint stress challenge, with collection of tail blood samples for measurement of plasma corticosterone. WD-fed rats had increased caloric intake, body weight and adiposity, as expected. Rats offered LSI (3% or 30%) readily drank the maximal amount allowed (8 ml/day) and reduced their dietary intake to compensate for the sucrose calories, such that LSI did not alter body weight regardless of diet type. In chow-fed lean rats, LSI with either 3% or 30% sucrose reduced the plasma corticosterone response to restraint stress, but this effect was absent in WD-fed DIO rats. Together, these data support the hypothesis that obesity attenuates stress blunting by palatable foods and suggest the possibility that consequently, individuals with obesity may need to consume larger amounts of palatable food to obtain adequate stress relief.
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Affiliation(s)
- Khulood Almehmadi
- Department of Pharmacology and Systems Physiology, College of Medicine, University of Cincinnati, Cincinnati OH, 45237, USA; Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah, SA
| | - Sarah Fourman
- Department of Pharmacology and Systems Physiology, College of Medicine, University of Cincinnati, Cincinnati OH, 45237, USA
| | - Dana Buesing
- Department of Pharmacology and Systems Physiology, College of Medicine, University of Cincinnati, Cincinnati OH, 45237, USA
| | - Yvonne M Ulrich-Lai
- Department of Pharmacology and Systems Physiology, College of Medicine, University of Cincinnati, Cincinnati OH, 45237, USA.
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21
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Zakharova AN, Milovanova KG, Orlova AA, Dyakova EY, Kalinnikova JG, Kollantay OV, Shuvalov IY, Chibalin AV, Kapilevich LV. Effects of Treadmill Running at Different Light Cycles in Mice with Metabolic Disorders. Int J Mol Sci 2023; 24:15132. [PMID: 37894813 PMCID: PMC10606442 DOI: 10.3390/ijms242015132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/04/2023] [Accepted: 09/06/2023] [Indexed: 10/29/2023] Open
Abstract
Type 2 diabetes mellitus accounts for about 90% of cases of diabetes and is considered one of the most important problems of our time. Despite a significant number of studies on glucose metabolism, the molecular mechanisms of its regulation in health and disease remain insufficiently studied. That is why non-drug treatment of metabolic disorders is of great relevance, including physical activity. Metabolic changes under the influence of physical activity are very complex and are still difficult to understand. This study aims to deepen the understanding of the effect of physical exercise on metabolic changes in mice with diabetes mellitus. We studied the effect of forced treadmill running on body weight and metabolic parameters in mice with metabolic disorders. We developed a high-fat-diet-induced diabetic model of metabolic disorders. We exposed mice to forced treadmill running for 4 weeks. We determined glucose and insulin levels in the blood plasma biochemically and analyzed Glut-4 and citrate synthase in M. gastrocnemius muscle tissue using Western blotting. The research results show that daily treadmill running has different effects on different age groups of mice with metabolic disorders. In young-age animals, forced running has a more pronounced effect on body weight. At week 12, young obese mice had a 17% decrease in body weight. Body weight did not change in old mice. Moreover, at weeks 14 and 16, the decrease in body weight was more significant in the young mice (by 17%) compared to the old mice (by 6%) (p < 0.05). In older animals, it influences the rate of glucose uptake. At 60 min, the blood glucose in the exercised older mice decreased to 14.46 mmol/L, while the glucose concentration in the non-exercised group remained at 17 mmol/L. By 120 min, in mice subjected to exercise, the blood glucose approached the initial value (6.92 mmol/L) and amounted to 8.35 mmol/L. In the non-exercised group, this difference was 45%. The effects of physical activity depend on the time of day. The greater effect is observed when performing shift training or exercise during the time when animals are passive (light phase). In young mice, light phase training had a significant effect on increasing the content of Glut-4 in muscle tissue (84.3 ± 11.3%, p < 0.05 with control group-59.3 ± 7.8%). In aged mice, shift training caused an increase in the level of Glut-4 in muscle tissue (71.3 ± 4.1%, p < 0.05 with control group-56.4 ± 10,9%). In the group of aged mice, a lower CS level was noticed in all groups in comparison with young mice. It should also be noted that we observed that CS increased during exercise in the group of young mice, especially during light phase training. The CS content in the light phase subgroup (135.8 ± 7.0%) was higher than in the dark phase subgroup (113.3 ± 7.7%) (p = 0.0006). The CS decreased in aged chow-fed mice and increased in the high-fat-fed group. The CS content in the chow diet group (58.2 ± 5.0%) was 38% lower than in the HFD group (94.9 ± 8.8%).
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Affiliation(s)
- Anna Nikolaevna Zakharova
- Department of Sport Tourism, Sport Physiology and Medicine, National Research Tomsk State University, 634050 Tomsk, Russia; (K.G.M.); (A.A.O.); (E.Y.D.); (J.G.K.); (O.V.K.); (I.Y.S.); (A.V.C.); (L.V.K.)
| | - Kseniya Gennadievna Milovanova
- Department of Sport Tourism, Sport Physiology and Medicine, National Research Tomsk State University, 634050 Tomsk, Russia; (K.G.M.); (A.A.O.); (E.Y.D.); (J.G.K.); (O.V.K.); (I.Y.S.); (A.V.C.); (L.V.K.)
| | - Anna Alekseevna Orlova
- Department of Sport Tourism, Sport Physiology and Medicine, National Research Tomsk State University, 634050 Tomsk, Russia; (K.G.M.); (A.A.O.); (E.Y.D.); (J.G.K.); (O.V.K.); (I.Y.S.); (A.V.C.); (L.V.K.)
| | - Elena Yuryevna Dyakova
- Department of Sport Tourism, Sport Physiology and Medicine, National Research Tomsk State University, 634050 Tomsk, Russia; (K.G.M.); (A.A.O.); (E.Y.D.); (J.G.K.); (O.V.K.); (I.Y.S.); (A.V.C.); (L.V.K.)
| | - Julia Gennadievna Kalinnikova
- Department of Sport Tourism, Sport Physiology and Medicine, National Research Tomsk State University, 634050 Tomsk, Russia; (K.G.M.); (A.A.O.); (E.Y.D.); (J.G.K.); (O.V.K.); (I.Y.S.); (A.V.C.); (L.V.K.)
| | - Olesya Vadimovna Kollantay
- Department of Sport Tourism, Sport Physiology and Medicine, National Research Tomsk State University, 634050 Tomsk, Russia; (K.G.M.); (A.A.O.); (E.Y.D.); (J.G.K.); (O.V.K.); (I.Y.S.); (A.V.C.); (L.V.K.)
| | - Igor Yurievich Shuvalov
- Department of Sport Tourism, Sport Physiology and Medicine, National Research Tomsk State University, 634050 Tomsk, Russia; (K.G.M.); (A.A.O.); (E.Y.D.); (J.G.K.); (O.V.K.); (I.Y.S.); (A.V.C.); (L.V.K.)
| | - Alexander Valerievich Chibalin
- Department of Sport Tourism, Sport Physiology and Medicine, National Research Tomsk State University, 634050 Tomsk, Russia; (K.G.M.); (A.A.O.); (E.Y.D.); (J.G.K.); (O.V.K.); (I.Y.S.); (A.V.C.); (L.V.K.)
- Department of Molecular Medicine and Surgery, Section of Integrative Physiology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Leonid Vladimirovich Kapilevich
- Department of Sport Tourism, Sport Physiology and Medicine, National Research Tomsk State University, 634050 Tomsk, Russia; (K.G.M.); (A.A.O.); (E.Y.D.); (J.G.K.); (O.V.K.); (I.Y.S.); (A.V.C.); (L.V.K.)
- Central Research Laboratory, Siberian State Medical University, 634050 Tomsk, Russia
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22
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Alexopoulou F, Buch-Månson N, Pedersen SL, Vrang N, Fink LN, Strømgaard K. Identification of GDF15 peptide fragments inhibiting GFRAL receptor signaling. Peptides 2023; 168:171063. [PMID: 37495041 DOI: 10.1016/j.peptides.2023.171063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 07/10/2023] [Indexed: 07/28/2023]
Abstract
Growth differentiation factor 15 (GDF15) is believed to be a major causative factor for cancer-induced cachexia. Recent elucidation of the central circuits involved in GDF15 function and its signaling through the glial cell-derived neurotrophic factor family receptor α-like (GFRAL) has prompted the interest of targeting the GDF15-GFRAL signaling for energy homeostasis and body weight regulation. Here, we applied advanced peptide technologies to identify GDF15 peptide fragments inhibiting GFRAL signaling. SPOT peptide arrays revealed binding of GDF15 C-terminal peptide fragments to the extracellular domain of GFRAL. Parallel solid-phase peptide synthesis allowed for generation of complementary GDF15 peptide libraries and their subsequent functional evaluation in cells expressing the GFRAL/RET receptor complex. We identified a series of C-terminal fragments of GDF15 inhibiting GFRAL activity in the micromolar range. These novel GFRAL peptide inhibitors could serve as valuable tools for further development of peptide therapeutics towards the treatment of cachexia and other wasting disorders.
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Affiliation(s)
- Flora Alexopoulou
- Gubra Aps, Hørsholm, DK-2970 Hørsholm, Denmark; Department of Drug Design and Pharmacology, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | | | | | - Niels Vrang
- Gubra Aps, Hørsholm, DK-2970 Hørsholm, Denmark
| | | | - Kristian Strømgaard
- Department of Drug Design and Pharmacology, University of Copenhagen, DK-2100 Copenhagen, Denmark.
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23
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Moradi Tuchayi S, Khachatryan Y, Wang Y, Rox Anderson R, Wang JS, Wein MN, Garibyan L. Selective reduction of visceral adipose tissue with injectable ice slurry. Sci Rep 2023; 13:16350. [PMID: 37770553 PMCID: PMC10539385 DOI: 10.1038/s41598-023-43220-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 09/21/2023] [Indexed: 09/30/2023] Open
Abstract
Reduction in visceral adipose tissue (VAT) mass reduces body weight and metabolic disease risk in obese patients. However surgical removal of VAT is highly invasive and thus not clinically feasible. We developed an injectable ice slurry for selective reduction of adipose tissue through cryolipolysis. The aim of this study was to investigate safety, feasibility and mechanism of ice slurry-induced cryolipolysis of VAT. Perigonadal VAT in diet-induced obese mice and rats was subjected to slurry or sham treatment. Body weight and blood chemistry were monitored for 56 days post-treatment. Histological analysis and molecular studies were performed to elucidate mechanisms of fat reduction. Treatment of VAT was well tolerated in all animals. Slurry induced adipocyte cell death via selective cryolipolysis; significant weight loss was noted at day 21 post-treatment. RNA sequencing from treated VAT samples showed increased expression of genes involved in inflammation, immune response, collagen biosynthesis and wound healing, and decreased expression of adipokines. This study demonstrates that slurry treatment is safe and effective in inducing cryolipolysis of VAT and subsequent weight loss in mice. Ice slurry is promising as a minimally-invasive treatment to reduce visceral adipose tissue.
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Affiliation(s)
- Sara Moradi Tuchayi
- Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street-Thier 2, Boston, MA, 02114, USA
- Department of Dermatology, Harvard Medical School, Boston, USA
| | - Yeva Khachatryan
- Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street-Thier 2, Boston, MA, 02114, USA
| | - Ying Wang
- Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street-Thier 2, Boston, MA, 02114, USA
- Department of Dermatology, Harvard Medical School, Boston, USA
| | - R Rox Anderson
- Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street-Thier 2, Boston, MA, 02114, USA
- Department of Dermatology, Harvard Medical School, Boston, USA
| | - Jialiang S Wang
- Endocrine Unit, Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | - Marc N Wein
- Endocrine Unit, Massachusetts General Hospital, Harvard Medical School, Boston, USA
| | - Lilit Garibyan
- Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street-Thier 2, Boston, MA, 02114, USA.
- Department of Dermatology, Harvard Medical School, Boston, USA.
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24
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Douglass JD, Ness KM, Valdearcos M, Wyse-Jackson A, Dorfman MD, Frey JM, Fasnacht RD, Santiago OD, Niraula A, Banerjee J, Robblee M, Koliwad SK, Thaler JP. Obesity-associated microglial inflammatory activation paradoxically improves glucose tolerance. Cell Metab 2023; 35:1613-1629.e8. [PMID: 37572666 PMCID: PMC10528677 DOI: 10.1016/j.cmet.2023.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/09/2023] [Accepted: 07/19/2023] [Indexed: 08/14/2023]
Abstract
Hypothalamic gliosis associated with high-fat diet (HFD) feeding increases susceptibility to hyperphagia and weight gain. However, the body-weight-independent contribution of microglia to glucose regulation has not been determined. Here, we show that reducing microglial nuclear factor κB (NF-κB) signaling via cell-specific IKKβ deletion exacerbates HFD-induced glucose intolerance despite reducing body weight and adiposity. Conversely, two genetic approaches to increase microglial pro-inflammatory signaling (deletion of an NF-κB pathway inhibitor and chemogenetic activation through a modified Gq-coupled muscarinic receptor) improved glucose tolerance independently of diet in both lean and obese rodents. Microglial regulation of glucose homeostasis involves a tumor necrosis factor alpha (TNF-α)-dependent mechanism that increases activation of pro-opiomelanocortin (POMC) and other hypothalamic glucose-sensing neurons, ultimately leading to a marked amplification of first-phase insulin secretion via a parasympathetic pathway. Overall, these data indicate that microglia regulate glucose homeostasis in a body-weight-independent manner, an unexpected mechanism that limits the deterioration of glucose tolerance associated with obesity.
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Affiliation(s)
- John D Douglass
- UW Medicine Diabetes Institute, University of Washington, Seattle, WA 98109, USA; Department of Medicine, University of Washington, Seattle, WA 98109, USA
| | - Kelly M Ness
- UW Medicine Diabetes Institute, University of Washington, Seattle, WA 98109, USA; Department of Medicine, University of Washington, Seattle, WA 98109, USA
| | - Martin Valdearcos
- The Diabetes Center, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Alice Wyse-Jackson
- UW Medicine Diabetes Institute, University of Washington, Seattle, WA 98109, USA; Department of Medicine, University of Washington, Seattle, WA 98109, USA
| | - Mauricio D Dorfman
- UW Medicine Diabetes Institute, University of Washington, Seattle, WA 98109, USA; Department of Medicine, University of Washington, Seattle, WA 98109, USA
| | - Jeremy M Frey
- UW Medicine Diabetes Institute, University of Washington, Seattle, WA 98109, USA; Department of Medicine, University of Washington, Seattle, WA 98109, USA
| | - Rachael D Fasnacht
- UW Medicine Diabetes Institute, University of Washington, Seattle, WA 98109, USA; Department of Medicine, University of Washington, Seattle, WA 98109, USA
| | - Olivia D Santiago
- UW Medicine Diabetes Institute, University of Washington, Seattle, WA 98109, USA; Department of Medicine, University of Washington, Seattle, WA 98109, USA
| | - Anzela Niraula
- UW Medicine Diabetes Institute, University of Washington, Seattle, WA 98109, USA; Department of Medicine, University of Washington, Seattle, WA 98109, USA
| | - Jineta Banerjee
- UW Medicine Diabetes Institute, University of Washington, Seattle, WA 98109, USA; Department of Medicine, University of Washington, Seattle, WA 98109, USA
| | - Megan Robblee
- The Diabetes Center, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Suneil K Koliwad
- The Diabetes Center, University of California, San Francisco, San Francisco, CA 94143, USA; Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA.
| | - Joshua P Thaler
- UW Medicine Diabetes Institute, University of Washington, Seattle, WA 98109, USA; Department of Medicine, University of Washington, Seattle, WA 98109, USA.
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25
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Zheng S, Polidori D, Wang Y, Geist B, Lin‐Schmidt X, Furman JL, Nelson S, Nawrocki AR, Hinke SA. A long-acting GDF15 analog causes robust, sustained weight loss and reduction of food intake in an obese nonhuman primate model. Clin Transl Sci 2023; 16:1431-1444. [PMID: 37154518 PMCID: PMC10432867 DOI: 10.1111/cts.13543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/28/2023] [Accepted: 04/27/2023] [Indexed: 05/10/2023] Open
Abstract
Growth Differentiation Factor-15 (GDF15) is a circulating polypeptide linked to cellular stress and metabolic adaptation. GDF15's half-life is ~3 h and activates the glial cell line-derived neurotrophic factor family receptor alpha-like (GFRAL) receptor expressed in the area postrema. To characterize sustained GFRAL agonism on food intake (FI) and body weight (BW), we tested a half-life extended analog of GDF15 (Compound H [CpdH]) suitable for reduced dosing frequency in obese cynomolgus monkeys. Animals were chronically treated once weekly (q.w.) with CpdH or long-acting GLP-1 analog dulaglutide. Mechanism-based longitudinal exposure-response modeling characterized effects of CpdH and dulaglutide on FI and BW. The novel model accounts for both acute, exposure-dependent effects reducing FI and compensatory changes in energy expenditure (EE) and FI occurring over time with weight loss. CpdH had linear, dose-proportional pharmacokinetics (terminal half-life ~8 days) and treatment caused exposure-dependent reductions in FI and BW. The 1.6 mg/kg CpdH reduced mean FI by 57.5% at 1 week and sustained FI reductions of 31.5% from weeks 9-12, resulting in peak reduction in BW of 16 ± 5%. Dulaglutide had more modest effects on FI and peak BW loss was 3.8 ± 4.0%. Longitudinal modeling of both the FI and BW profiles suggested reductions in BW observed with both CpdH and dulaglutide were fully explained by exposure-dependent reductions in FI without increase in EE. Upon verification of the pharmacokinetic/pharmacodynamic relationship established in monkeys and humans for dulaglutide, we predicted that CpdH could reach double digit BW loss in humans. In summary, a long-acting GDF15 analog led to sustained reductions in FI in overweight monkeys and holds potential for effective clinical obesity pharmacotherapy.
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Affiliation(s)
- Songmao Zheng
- Janssen Research & DevelopmentSpring HousePennsylvaniaUSA
- Present address:
AdageneSan DiegoCaliforniaUSA
| | | | - Yuanping Wang
- Janssen Research & DevelopmentSpring HousePennsylvaniaUSA
| | - Brian Geist
- Janssen Research & DevelopmentSpring HousePennsylvaniaUSA
| | | | | | | | | | - Simon A. Hinke
- Janssen Research & DevelopmentSpring HousePennsylvaniaUSA
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26
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Cai J, Chen J, Ortiz-Guzman J, Huang J, Arenkiel BR, Wang Y, Zhang Y, Shi Y, Tong Q, Zhan C. AgRP neurons are not indispensable for body weight maintenance in adult mice. Cell Rep 2023; 42:112789. [PMID: 37422762 PMCID: PMC10909125 DOI: 10.1016/j.celrep.2023.112789] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 05/16/2023] [Accepted: 06/23/2023] [Indexed: 07/11/2023] Open
Abstract
In addition to their role in promoting feeding and obesity development, hypothalamic arcuate agouti-related protein/neuropeptide Y (AgRP/NPY) neurons are widely perceived to be indispensable for maintaining normal feeding and body weight in adults, and consistently, acute inhibition of AgRP neurons is known to reduce short-term food intake. Here, we adopted complementary methods to achieve nearly complete ablation of arcuate AgRP/NPY neurons in adult mice and report that lesioning arcuate AgRP/NPY neurons in adult mice causes no apparent alterations in ad libitum feeding or body weight. Consistent with previous studies, loss of AgRP/NPY neurons blunts fasting refeeding. Thus, our studies show that AgRP/NPY neurons are not required for maintaining ad libitum feeding or body weight homeostasis in adult mice.
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Affiliation(s)
- Jing Cai
- Brown Institute of Molecular Medicine at McGovern Medical School and Neuroscience Program of MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Jing Chen
- School of Sport Science, Beijing Sport University, Beijing 100084, China
| | - Joshua Ortiz-Guzman
- Duncan Institute of Neurological Research and Department of Neuroscience and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jessica Huang
- Brown Institute of Molecular Medicine at McGovern Medical School and Neuroscience Program of MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Benjamin R Arenkiel
- Duncan Institute of Neurological Research and Department of Neuroscience and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yuchen Wang
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Hematology, The First Affiliated Hospital of USTC, CAS Key Laboratory of Brain Function and Disease, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, Biomedical Sciences and Health Laboratory of Anhui Province, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Yan Zhang
- School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Yuyan Shi
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Hematology, The First Affiliated Hospital of USTC, CAS Key Laboratory of Brain Function and Disease, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, Biomedical Sciences and Health Laboratory of Anhui Province, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Qingchun Tong
- Brown Institute of Molecular Medicine at McGovern Medical School and Neuroscience Program of MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, University of Texas Health Science Center at Houston, Houston, TX 77030, USA.
| | - Cheng Zhan
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Hematology, The First Affiliated Hospital of USTC, CAS Key Laboratory of Brain Function and Disease, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, Biomedical Sciences and Health Laboratory of Anhui Province, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China.
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Lechner L, Opitz R, Silver MJ, Krabusch PM, Prentice AM, Field MS, Stachelscheid H, Leitão E, Schröder C, Fernandez Vallone V, Horsthemke B, Jöckel KH, Schmidt B, Nöthen MM, Hoffmann P, Herms S, Kleyn PW, Megges M, Blume-Peytavi U, Weiss K, Mai K, Blankenstein O, Obermayer B, Wiegand S, Kühnen P. Early-set POMC methylation variability is accompanied by increased risk for obesity and is addressable by MC4R agonist treatment. Sci Transl Med 2023; 15:eadg1659. [PMID: 37467315 DOI: 10.1126/scitranslmed.adg1659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 06/22/2023] [Indexed: 07/21/2023]
Abstract
Increasing evidence points toward epigenetic variants as a risk factor for developing obesity. We analyzed DNA methylation of the POMC (pro-opiomelanocortin) gene, which is pivotal for satiety regulation. We identified sex-specific and nongenetically determined POMC hypermethylation associated with a 1.4-fold (confidence interval, 1.03 to 2.04) increased individual risk of developing obesity. To investigate the early embryonic establishment of POMC methylation states, we established a human embryonic stem cell (hESC) model. Here, hESCs (WA01) were transferred into a naïve state, which was associated with a reduction of DNA methylation. Naïve hESCs were differentiated via a formative state into POMC-expressing hypothalamic neurons, which was accompanied by re-establishment of DNA methylation patterning. We observed that reduced POMC gene expression was associated with increased POMC methylation in POMC-expressing neurons. On the basis of these findings, we treated POMC-hypermethylated obese individuals (n = 5) with an MC4R agonist and observed a body weight reduction of 4.66 ± 2.16% (means ± SD) over a mean treatment duration of 38.4 ± 26.0 weeks. In summary, we identified an epigenetic obesity risk variant at the POMC gene fulfilling the criteria for a metastable epiallele established in early embryonic development that may be addressable by MC4R agonist treatment to reduce body weight.
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Affiliation(s)
- Lara Lechner
- Department of Pediatric Endocrinology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany
| | - Robert Opitz
- Institute for Experimental Pediatric Endocrinology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany
| | - Matt J Silver
- Medical Research Council Unit, Gambia at the London School of Hygiene and Tropical Medicine, Fajara, Banjul, PO Box 273, Gambia
| | - Philipp M Krabusch
- Department of Pediatric Endocrinology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany
| | - Andrew M Prentice
- Medical Research Council Unit, Gambia at the London School of Hygiene and Tropical Medicine, Fajara, Banjul, PO Box 273, Gambia
| | - Martha S Field
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14850, USA
| | - Harald Stachelscheid
- Berlin Institute of Health, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, BIH Core Unit Stem Cells and Organoids, 13353 Berlin, Germany
| | - Elsa Leitão
- Institute of Human Genetics, University Hospital Essen, 45147 Essen, Germany
| | | | - Valeria Fernandez Vallone
- Berlin Institute of Health, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, BIH Core Unit Stem Cells and Organoids, 13353 Berlin, Germany
| | - Bernhard Horsthemke
- Institute of Human Genetics, University Hospital Essen, 45147 Essen, Germany
| | - Karl-Heinz Jöckel
- Institute of Medical Informatics, Biometry and Epidemiology, University Hospital Essen, 45147 Essen, Germany
| | - Börge Schmidt
- Institute of Medical Informatics, Biometry and Epidemiology, University Hospital Essen, 45147 Essen, Germany
| | - Markus M Nöthen
- Institute of Human Genetics, School of Medicine and University Hospital Bonn, University of Bonn, 53127 Bonn, Germany
| | - Per Hoffmann
- Institute of Human Genetics, School of Medicine and University Hospital Bonn, University of Bonn, 53127 Bonn, Germany
| | - Stefan Herms
- Institute of Human Genetics, School of Medicine and University Hospital Bonn, University of Bonn, 53127 Bonn, Germany
| | | | - Matthias Megges
- Department of Pediatric Endocrinology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany
| | - Ulrike Blume-Peytavi
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Venerology and Allergology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, and Humboldt-Universität zu Berlin, 10117 Berlin, Germany
| | - Katja Weiss
- Klinik für Angeborene Herzfehler - Kinderkardiologie, Deutsches Herzzentrum der Charité, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany
| | - Knut Mai
- Department of Endocrinology, Diabetes, and Nutrition and Charité Center for Cardiovascular Research, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
- German Center for Diabetes Research, 85764 München-Neuherberg, Germany
| | - Oliver Blankenstein
- Department of Pediatric Endocrinology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany
- Department Endocrinology and Metabolism, Labor Berlin-Charité Vivantes GmbH, 13353 Berlin, Germany
| | - Benedikt Obermayer
- Core Unit Bioinformatics (CUBI), Berlin Institute of Health/Charité- Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany
| | - Susanna Wiegand
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Center for Social-Pediatric Care/Pediatric Endocrinology and Diabetology, 13353 Berlin, Germany
| | - Peter Kühnen
- Department of Pediatric Endocrinology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany
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Li YY, Yang YM, Zhu S, Cheng H, Hernandez J, Huang W, Wang HHX, Li YT. Changes in body weight and cardiovascular risk factors in a Chinese population with type 2 diabetes mellitus: a longitudinal study. Front Endocrinol (Lausanne) 2023; 14:1112855. [PMID: 37124734 PMCID: PMC10130380 DOI: 10.3389/fendo.2023.1112855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 03/03/2023] [Indexed: 05/02/2023] Open
Abstract
Introduction The primary care management of blood glucose, blood pressure, lipid profiles, and body weight is important among patients with type 2 diabetes mellitus (T2DM) to prevent disease progression. Information on how weight changes would improve or deteriorate cardiovascular (CV) risk factors is warranted for making primary care recommendations. We aimed to investigate the changes in body weight and CV risk factors and to analyse their association in a Chinese population with T2DM. Methods We retrieved longitudinal data between 2020 and 2021 from 1,758 adult primary care patients enrolled in a diabetic retinopathy (DR) screening programme. Linear associations of changes in body weight with CV risk factors were explored. Multivariable logistic regression analysis was performed to examine associations between different weight change categories and the worsening of CV risk factors. Results The mean age of all the participants was 63.71 years, and over half of participants were females. During a one-year follow-up period, 24.7% of patients had a weight loss of ≥3%, while 22.2% of patients had a weight gain of ≥3%. Patients who had a weight loss of ≥3% were more likely to prevent the worsening of haemoglobin A1c (HbA1c) and triglycerides, while those who had a weight gain of ≥3% tended to have worsened HbA1c, lipid profiles, and blood pressure. Conclusion Results from this real-world investigation suggested the concurrent need for weight loss intervention among patients who are overweight or obese and weight gain prevention among patients whose body weight falls within the normal range in the context of community-based diabetes management.
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Affiliation(s)
- Yun-Yi Li
- School of Public Health, Sun Yat-Sen University, Guangzhou, China
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
| | - Yu-Meng Yang
- School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Sufen Zhu
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Hui Cheng
- School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Jose Hernandez
- Faculty of Medicine and Health, EDU, Digital Education Holdings Ltd., Kalkara, Malta
- Green Templeton College, University of Oxford, Oxford, United Kingdom
| | - Wenyong Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
| | - Harry H. X. Wang
- School of Public Health, Sun Yat-Sen University, Guangzhou, China
- JC School of Public Health and Primary Care, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Usher Institute, Deanery of Molecular, Genetic & Population Health Sciences, The University of Edinburgh, Scotland, United Kingdom
| | - Yu Ting Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
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29
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Binder AK, Peecher DL, Qvigstad AJ, Gutierrez SD, Magaña J, Banks DB, Korach KS. Differential Strain-dependent Ovarian and Metabolic Responses in a Mouse Model of PCOS. Endocrinology 2023; 164:7014347. [PMID: 36718579 DOI: 10.1210/endocr/bqad024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/29/2022] [Accepted: 01/27/2023] [Indexed: 02/01/2023]
Abstract
Several mouse models have been developed to study polycystic ovarian syndrome (PCOS), a leading cause of infertility in women. Treatment of mice with DHT for 90 days causes ovarian and metabolic phenotypes similar to women with PCOS. We used this 90-day DHT treatment paradigm to investigate the variable incidence and heterogeneity in 2 inbred mouse strains, NOD/ShiLtJ and 129S1/SvlmJ. NOD mice naturally develop type 1 diabetes, and recent meta-analysis found increased androgen excess and PCOS in women with type 1 diabetes. The 129S1 mice are commonly used in genetic manipulations. Both NOD and 129S1 DHT-treated mice had early vaginal opening, increased anogenital distance, and altered estrus cycles compared with control animals. Additionally, both NOD and 129S1 mice had reduced numbers of corpora lutea after DHT exposure, whereas NOD mice had decreased numbers of preantral follicles and 129S1 mice had reduced numbers of small antral follicles. NOD mice had increased body weight, decreased white adipocyte size, and improved glucose sensitivity in response to DHT, whereas 129S1 mice had increased body weight and white adipocyte size. NOD mice had increased expression of Adiponectin, Cidea, Srebp1a, and Srebp1b and 129S1 mice had decreased Pparg in the white adipose tissues, whereas both NOD and 129S1 mice had increased expression of Glut4 and Prdm16, suggesting DHT may differentially affect glucose transport, thermogenesis, and lipid storage in white adipose tissue. DHT causes different ovarian and metabolic responses in NOD and 129S1 mice, suggesting that strain differences may allow further elucidation of genetic contributions to PCOS.
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Affiliation(s)
- April K Binder
- Central Washington University, Biological Sciences, Ellensburg, WA 98926, USA
- Center for Reproductive Biology, Washington State University, Pullman, WA 99164, USA
- Reproductive & Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA
| | - Danielle L Peecher
- Central Washington University, Biological Sciences, Ellensburg, WA 98926, USA
- Center for Reproductive Biology, Washington State University, Pullman, WA 99164, USA
| | - Amanda J Qvigstad
- Central Washington University, Biological Sciences, Ellensburg, WA 98926, USA
- Center for Reproductive Biology, Washington State University, Pullman, WA 99164, USA
| | - Silvia D Gutierrez
- Central Washington University, Biological Sciences, Ellensburg, WA 98926, USA
- Center for Reproductive Biology, Washington State University, Pullman, WA 99164, USA
| | - Jennifer Magaña
- Central Washington University, Biological Sciences, Ellensburg, WA 98926, USA
- Center for Reproductive Biology, Washington State University, Pullman, WA 99164, USA
| | - David B Banks
- Reproductive & Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA
- Biological Sciences Division, University of Chicago Pritzker School of Medicine, Chicago, IL 60637, USA
| | - Kenneth S Korach
- Reproductive & Developmental Biology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA
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Rideout TC, Andreani GA, Pembroke J, Choudhary D, Browne RW, Mahmood S, Patel MS. Maternal Pea Protein Intake Provides Sex-Specific Protection against Dyslipidemia in Offspring from Obese Pregnancies. Nutrients 2023; 15:nu15040867. [PMID: 36839225 PMCID: PMC9968008 DOI: 10.3390/nu15040867] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/27/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Increased consumption of dietary pulse protein has been shown to assist in body weight regulation and improve a range of metabolic health outcomes. We investigated if the exchange of casein for yellow pea protein (YPPN) in an obese-inducing maternal diet throughout pregnancy and lactation offered protection against obesity and dyslipidemia in offspring. Sixty female Sprague Dawley rats were fed a low-calorie control diet (CON), a high-caloric obesity-inducing diet (with casein protein (CP), HC-CP), or an isocaloric/macronutrient-matched HC diet supplemented with YPPN isolate (HC-PPN) in pre-pregnancy, gestation, and lactation. Body weight (BW) and metabolic outcomes were assessed in male and female offspring at weaning and in adulthood after consuming the CON diet in the postnatal period. Consumption of the HC-PPN diet did not protect against maternal obesity but did improve reproductive success compared with the HC-CP group (72.7% versus 43.7%) and reduced total energy, fat, and protein in maternal milk. Male, but not female, offspring from mothers fed the HC-CP diet demonstrated hyperphagia, obesity, dyslipidemia, and hepatic triglyceride (TG) accumulation as adults compared with CON offspring. Isocaloric exchange of CP for YPPN in a high-calorie obese-inducing diet did not protect against obesity but did improve several aspects of lipid metabolism in adult male offspring including serum total cholesterol, LDL/VLDL cholesterol, triglycerides (TGs), and hepatic TG concentration. Our results suggest that the exchange of CP for YPPN in a maternal obese-inducing diet selectively protects male offspring from the malprogramming of lipid metabolism in adulthood.
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Affiliation(s)
- Todd C. Rideout
- Department of Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY 14214, USA
- Correspondence:
| | - Gabriella A. Andreani
- Department of Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY 14214, USA
| | - Jillian Pembroke
- Department of Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY 14214, USA
| | - Divya Choudhary
- Department of Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY 14214, USA
| | - Richard W. Browne
- Department of Biotechnical and Clinical Laboratory Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14214, USA
| | - Saleh Mahmood
- Department of Exercise and Nutrition Sciences, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY 14214, USA
| | - Mulchand S. Patel
- Department of Biochemistry, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY 14214, USA
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Navarro-Masip È, Caron A, Mulero M, Arola L, Aragonès G. Photoperiodic Remodeling of Adiposity and Energy Metabolism in Non-Human Mammals. Int J Mol Sci 2023; 24:ijms24021008. [PMID: 36674520 PMCID: PMC9865556 DOI: 10.3390/ijms24021008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/01/2023] [Accepted: 01/02/2023] [Indexed: 01/07/2023] Open
Abstract
Energy homeostasis and metabolism in mammals are strongly influenced by seasonal changes. Variations in photoperiod patterns drive adaptations in body weight and adiposity, reflecting changes in the regulation of food intake and energy expenditure. Humans also show distinct patterns of energy balance depending on the season, being more susceptible to gaining weight during a specific time of the year. Changes in body weight are mainly reflected by the adipose tissue, which is a key metabolic tissue and is highly affected by circannual rhythms. Mostly, in summer-like (long-active) photoperiod, adipocytes adopt a rather anabolic profile, more predisposed to store energy, while food intake increases and energy expenditure is reduced. These metabolic adaptations involve molecular modifications, some of which have been studied during the last years and are summarized in this review. In addition, there is a bidirectional relation between obesity and the seasonal responses, with obesity disrupting some of the seasonal responses observed in healthy mammals, and altered seasonality being highly associated with increased risk of developing obesity. This suggests that changes in photoperiod produce important metabolic alterations in healthy organisms. Biological rhythms impact the regulation of metabolism to different extents, some of which are already known, but further research is needed to fully understand the relationship between energy balance and seasonality.
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Affiliation(s)
- Èlia Navarro-Masip
- Nutrigenomics Research Group, Department of Biochemistry and Biotechnology, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| | - Alexandre Caron
- Faculty of Pharmacy, Université Laval, Québec City, QC G1V 0A6, Canada
| | - Miquel Mulero
- Nutrigenomics Research Group, Department of Biochemistry and Biotechnology, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| | - Lluís Arola
- Nutrigenomics Research Group, Department of Biochemistry and Biotechnology, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| | - Gerard Aragonès
- Nutrigenomics Research Group, Department of Biochemistry and Biotechnology, Universitat Rovira i Virgili, 43007 Tarragona, Spain
- Correspondence:
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Lv J, Tang L, Zhang X, Wang D. Thermo-TRP channels are involved in BAT thermoregulation in cold-acclimated Brandt's voles. Comp Biochem Physiol B Biochem Mol Biol 2023; 263:110794. [PMID: 35964792 DOI: 10.1016/j.cbpb.2022.110794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/02/2022] [Accepted: 08/08/2022] [Indexed: 10/15/2022]
Abstract
Transient receptor potential (TRP) channels, which can sense temperature, pressure and mechanical stimuli, were involved in many physiological and biochemical reactions. Whether thermosensitive TRP channels (Thermo-TRPs) are involved in thermoregulation in small mammals is still not clear. We measured the changes of thermo-TRPs at 4 °C, 23 °C and 30 °C in Brandt's voles (Lasiopodomys brandtii) to test the hypothesis that Thermo-TRPs are involved in cold-induced thermogenesis of brown adipose tissue (BAT) in small mammals. Results showed that air temperatures had no effect on body mass and rectal temperature, but the food intake and basal metabolic rate (BMR) in the 4 °C group were significantly higher than in the 30 °C group. Compared with 30 °C group, the protein contents of uncoupling protein 1(UCP1), TRP vanilloid 2 (TRPV2), TRP ankyrin 1 (TRPA1), TRP melastatin 2 (TRPM2), silent Information Regulator T1 (SIRT1), AMP-activated protein kinase (AMPK) and Calcium/calmodulin-dependent protein kinase II (CaMKII) in BAT increased significantly in 4 °C group, but there was no significant difference in the protein content of Thermo-TRPs in the hypothalamus among groups. Further, the expression of PRDM16 (PR domain containing 16) in inguinal white adipose tissue (iWAT) at 4 °C was significantly higher than that at 30 °C, but no difference was observed in the expression of other browning-related genes or TRPV2. In conclusion, TRP channels may participate in BAT thermoregulation through the CaMKII, AMPK, SIRT1 and UCP1 pathway in cold-acclimated Brandt's voles.
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Affiliation(s)
- Jinzhen Lv
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing 100049, China; Chengdu Institute of Food Inspection, Chengdu 611100, China
| | - Liqiu Tang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xueying Zhang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Dehua Wang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; School of Life Sciences, Shandong University, Qingdao 266237, China; CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing 100049, China.
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Su X, Wang X, Pan X, Zhang X, Lu X, Zhao L, Chen Y, Shang Y, Zhu L, Lu S, Zhu X, Wu F, Xiu M. Effect of Repetitive Transcranial Magnetic Stimulation in Inducing Weight Loss in Patients with Chronic Schizophrenia: A Randomized, Double-Blind Controlled 4-Week Study. Curr Neuropharmacol 2023; 21:417-423. [PMID: 35611778 PMCID: PMC10190142 DOI: 10.2174/1570159x20666220524123315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 05/03/2022] [Accepted: 05/11/2022] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVES There is emerging evidence that high-frequency (HF) repetitive transcranial magnetic stimulation (rTMS) may promote weight loss in individuals with obesity in the general population. However, no study has been conducted on patients with schizophrenia (SZ). This study evaluated the efficacy of 10Hz rTMS in reducing body weight in patients with chronic SZ. METHODS Forty-seven SZ patients were randomly assigned to two groups: 10Hz rTMS or sham stimulation over DLPFC (applied once daily) for 20 consecutive treatments. Body weight was assessed at baseline, at the end of week 1, week 2, week 3 and week 4. Clinical symptoms were evaluated with the Positive and Negative Syndrome Scale (PANSS) at baseline and at the end of week 4. RESULTS We found that compared with patients in the sham group, 10Hz rTMS treatment significantly reduced body weight in patients with chronic SZ after a period of 4 weeks of stimulation. Interestingly, further analysis found that from the first week (5 sessions) of treatment, there was a significant difference in body weight between active and sham groups after controlling for baseline weight. However, active rTMS treatment did not improve the psychotic symptoms compared to sham stimulation. CONCLUSION Our results suggest that add-on HF rTMS could be an effective therapeutic strategy for body weight control in patients with chronic SZ.
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Affiliation(s)
- Xiuru Su
- Hebei Province Veterans Hospital, Baoding, China
| | - Xuan Wang
- Hebei Province Veterans Hospital, Baoding, China
| | - Xiuling Pan
- Hebei Province Veterans Hospital, Baoding, China
| | - Xuan Zhang
- Hebei Province Veterans Hospital, Baoding, China
| | - Xinyan Lu
- Hebei Province Veterans Hospital, Baoding, China
| | - Long Zhao
- Hebei Province Veterans Hospital, Baoding, China
| | - Yingnan Chen
- Hebei Province Veterans Hospital, Baoding, China
| | - Yujie Shang
- Hebei Province Veterans Hospital, Baoding, China
| | - Lin Zhu
- Hebei Province Veterans Hospital, Baoding, China
| | - Shulan Lu
- Hebei Province Veterans Hospital, Baoding, China
| | - Xiaolin Zhu
- Peking University HuiLong Guan Clinical Medical School, Beijing HuiLong Guan Hospital, Beijing, China
| | - Fengchun Wu
- Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong Engineering Technology Research Center for Translational Medicine of Mental Disorders, Guangzhou, China
| | - Meihong Xiu
- Peking University HuiLong Guan Clinical Medical School, Beijing HuiLong Guan Hospital, Beijing, China
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Weber P, Thomsen MN, Skytte MJ, Samkani A, Carl MH, Astrup A, Frystyk J, Holst JJ, Hartmann B, Madsbad S, Magkos F, Krarup T, Haugaard SB. Effects of Carbohydrate Restriction on Body Weight and Glycemic Control in Individuals with Type 2 Diabetes: A Randomized Controlled Trial of Efficacy in Real-Life Settings. Nutrients 2022; 14:nu14245244. [PMID: 36558403 PMCID: PMC9788105 DOI: 10.3390/nu14245244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
A fully provided, hypocaloric, carbohydrate-reduced high-protein (CRHP) diet compared to a hypocaloric conventional diabetes (CD) diet for 6 weeks improved glycemic control to a greater extent in face of an intended 6% weight loss in individuals with type 2 diabetes mellitus (T2DM). The present 24-week extension of that study reports on the efficacy of CRHP and CD diets in a real-life setting. Sixty-five individuals with T2DM who completed the initial 6-week fully provided diet period (% energy from carbohydrate, protein, and fat was 30/30/40 in CRHP, and 50/17/33 in CD) continued a free-living, dietician guided 24-week period of which 59 individuals completed. The CRHP compared to CD group reported a 4% lower carbohydrate intake and had higher urea excretion by 22% (both p ≤ 0.05) at week 30, suggesting less difference in carbohydrate and protein intake between groups during the 24-week extension compared to week 6. The loss of body weight during the initial 6 weeks was maintained in both groups during the 24-week extension (-5.5 ± 4.5 and -4.6 ± 4.8 kg) as well as HbA1c (-8.4 ± 6.2 and -8.4 ± 6.9 mmol/mol) with no significant differences between groups. The additional benefits on glucoregulation harnessed by carbohydrate restriction under full diet provision for 6 weeks combined with titrated weight loss could not be maintained in a real-life setting of self-prepared diet aiming on similar diets for 6 months.
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Affiliation(s)
- Philip Weber
- Department of Endocrinology, Copenhagen University Hospital Bispebjerg, 2400 Copenhagen, Denmark
- Correspondence:
| | - Mads N. Thomsen
- Department of Endocrinology, Copenhagen University Hospital Bispebjerg, 2400 Copenhagen, Denmark
| | - Mads Juul Skytte
- Department of Forensic Medicine, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Amirsalar Samkani
- Department of Endocrinology, Copenhagen University Hospital Bispebjerg, 2400 Copenhagen, Denmark
| | - Martin Hansen Carl
- Department of Endocrinology, Copenhagen University Hospital Bispebjerg, 2400 Copenhagen, Denmark
| | - Arne Astrup
- Department of Obesity and Nutritional Sciences, Novo Nordisk Foundation, 2900 Hellerup, Denmark
| | - Jan Frystyk
- Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark
- Department of Endocrinology, Odense University Hospital, 5000 Odense, Denmark
| | - Jens J. Holst
- NNF Centre for Basic Metabolic Research, University of Copenhagen, 2200 Copenhagen, Denmark
- Department of Biomedical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Bolette Hartmann
- NNF Centre for Basic Metabolic Research, University of Copenhagen, 2200 Copenhagen, Denmark
- Department of Biomedical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Sten Madsbad
- Department of Endocrinology, Copenhagen University Hospital Amager Hvidovre, 2650 Hvidovre, Denmark
| | - Faidon Magkos
- Department of Nutrition, Exercise and Sports, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Thure Krarup
- Department of Endocrinology, Copenhagen University Hospital Bispebjerg, 2400 Copenhagen, Denmark
- Department of Nutrition, Exercise and Sports, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Steen B. Haugaard
- Department of Endocrinology, Copenhagen University Hospital Bispebjerg, 2400 Copenhagen, Denmark
- Institute of Clinical Medicine, University of Copenhagen, 2200 Copenhagen, Denmark
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Eisemann JH, Nienaber JA, Huntington GB. Ractopamine and age alter oxygen use and nitrogen metabolism in tissues of beef steers. J Anim Sci 2022; 100:skac304. [PMID: 36094302 PMCID: PMC9667968 DOI: 10.1093/jas/skac304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 09/09/2022] [Indexed: 11/14/2022] Open
Abstract
The objective was to quantify the effects of age and ractopamine (RAC) on whole body oxygen consumption and Leu flux, and oxygen flux and metabolism of nitrogenous compounds by the portal-drained viscera (PDV), liver, and hindquarters (HQ) of steers. Multicatheterized steers were fed a high energy diet every 2 h in 12 equal portions. Five younger steers (body weight, [BW] = 223 ± 10.1 kg) were 6 mo old and five older steers (BW = 464 ± 16.3 kg) were 14 mo old. Treatments were control (Cont) or 80 mg RAC per kg diet in a crossover design. Nitrogen (N) balance was measured on day 9 to 13. Whole body oxygen consumption and net flux were measured on day 11 and day 13, and net flux of N variables, Phe and Leu kinetics were measured on day 13. Whole body oxygen consumption increased (P < 0.05) in response to RAC in older but not younger steers. Retained N was greater (P = 0.009) for younger than older steers and increased (P = 0.010) with RAC in both ages of steers. Nitrogen retained as a percentage of N apparently absorbed increased (P < 0.05) in the older steers but not the younger steers in response to RAC. Oxygen uptake was greater (P < 0.05) in PDV, liver, and total splanchnic tissues in the younger steers and there was no response to RAC. In contrast, oxygen uptake in HQ increased (P < 0.05) with RAC in the older but not the younger steers. Concentration and net PDV release of α-amino N (AAN) were not affected by age or RAC. Uptake of AAN by liver decreased with RAC (P = 0.001). Splanchnic release of AAN was greater in younger steers (P = 0.020) and increased (P = 0.024) in response to RAC. For HQ tissues, uptake (P = 0.005) and extraction (P = 0.005) of AAN were lesser in older than younger steers and both increased (P = 0.001) in response to RAC. Based on Phe kinetics in HQ, RAC increased (P < 0.05) protein synthesis in older steers but not in younger steers. In contrast, protein breakdown decreased (P < 0.05) in response to RAC in younger steers. In response to RAC, protein degradation was less (P < 0.05) in younger than older steers. Based on Leu kinetics, whole body protein synthesis was greater in the younger steers (P = 0.022) but not altered in response to RAC. Ractopamine enhanced lean tissue growth by increasing supply of AAN to peripheral tissues and altering protein metabolism in HQ. These metabolic responses are consistent with established responses to RAC in production situations.
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Affiliation(s)
- Joan H Eisemann
- Department of Animal Science, North Carolina State University, Raleigh, NC 27695, USA
| | - John A Nienaber
- USDA, ARS, U. S. Meat Animal Research Center, Clay Center, NE 68933, USA
| | - Gerald B Huntington
- Department of Animal Science, North Carolina State University, Raleigh, NC 27695, USA
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Yamada Y, Murakami H, Kawakami R, Gando Y, Nanri H, Nakagata T, Watanabe D, Yoshida T, Hatamoto Y, Yoshimura E, Sanada K, Miyatake N, Miyachi M. Association between skeletal muscle mass or percent body fat and metabolic syndrome development in Japanese women: A 7-year prospective study. PLoS One 2022; 17:e0263213. [PMID: 36201472 PMCID: PMC9536572 DOI: 10.1371/journal.pone.0263213] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 09/20/2022] [Indexed: 11/23/2022] Open
Abstract
Previous cross-sectional studies have indicated that low relative appendicular lean mass (ALM) against body weight (divided by body weight, ALM/Wt, or divided by body mass index, ALM/BMI) was negatively associated with metabolic syndrome (MetS). Conversely, previous cross-sectional studies have indicated that the absolute ALM or ALM divided by squared height (ALM/Ht2) were positively associated with MetS. The aim of this longitudinal study was to investigate the association between low absolute or relative skeletal muscle mass, leg muscle power, or percent body fat and the development of MetS in Japanese women in a 7-y prospective study. The study participants included 346 Japanese women aged 26 to 85 years. The participants were divided into low and high groups based on the median values of ALM/Wt, ALM/BMI, ALM/Ht2, absolute ALM, or leg power. The longitudinal relationship between ALM indices or leg power and MetS development was examined using Kaplan-Meier curves and Cox regression models (average follow-up duration 7 years, range 1 to 10 years). During follow-up, 24 participants developed MetS. MetS incidence was higher in the low ALM/Wt group than the high ALM/Wt group even after controlling for age, obesity, waist circumference, family history of diabetes, smoking, and physical activity [adjusted hazard ratio = 5.60 (95% CI; 1.04-30.0)]. In contrast, MetS incidence was lower in the low ALM/Ht2 group than the high ALM/Ht2 group [adjusted hazard ratio = 10.6 (95%CI; 1.27-89.1)]. MetS incidence was not significantly different between the low and high ALM/BMI, absolute ALM, and leg power groups. Both ALM/Ht2 and ALM/Wt were not significant predictive variables for MetS development when fat mass or percent body fat was taken into account in the Cox model. At the very least, the results of this study underscore the importance of body composition measurements in that percent body fat, but not ALM, is associated with MetS development.
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Affiliation(s)
- Yosuke Yamada
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
- * E-mail:
| | - Haruka Murakami
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Shiga, Japan
| | - Ryoko Kawakami
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
| | - Yuko Gando
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
- Faculty of Sport Science, Surugadai University, Hanno, Saitama, Japan
| | - Hinako Nanri
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | - Takashi Nakagata
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | - Daiki Watanabe
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
| | - Tsukasa Yoshida
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | - Yoichi Hatamoto
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | - Eiichi Yoshimura
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | - Kiyoshi Sanada
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Shiga, Japan
| | - Nobuyuki Miyatake
- Department of Hygine, Faculty of Medicine, Kagawa Unviersity, Miki, Kagawa, Japan
| | - Motohiko Miyachi
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan
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Nephrosis in an Aberdeen Angus calf with white muscle disease. Vet Rec 2022; 191:332-5. [PMID: 36269238 DOI: 10.1002/vetr.2364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
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Parrela JPSDS, Borkenhagen IR, Salmeron SRF, Lima TAL, Miranda GDS, Costermani HDO, Ricken CLRDS, Alves EV, Gomes RM, de Oliveira JC. Intrauterine malnutrition disrupts leptin and ghrelin milk hormones, programming rats. J Endocrinol 2022; 255:11-23. [PMID: 35904490 DOI: 10.1530/joe-21-0427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 07/05/2022] [Indexed: 11/08/2022]
Abstract
Herein, we assessed milk hormones, the biochemical composition of milk, and its association with neonatal body weight gain and metabolic homeostasis in weaned rats whose mothers were undernourished in the last third of pregnancy. From the 14th day of pregnancy until delivery, undernourished mothers had their food restricted by 50% (FR50), whereas control mothers were fed ad libitum. The litter size was adjusted to eight pups, and rats were weaned at 22 days old. Milk and blood from mothers, as well as blood and tissues from pups, were collected for further analyses. At birth, FR50 pups were smaller than control pups, and they exhibited hyperphagia and rapid catch-up growth during the suckling period. On day 12, the milk from FR50 mothers had higher energy content, glucose, total cholesterol, triglycerides, and acylated ghrelin but lower leptin and corticosterone levels. Interestingly, FR50 mothers were hypoglycemic and hyperleptinemic at the end of the nursing period. Weaned FR50 pups had an obese phenotype and exhibited insulin resistance, which was associated with hyperglycemia and hypertriglyceridemia; they also had high blood levels of total cholesterol, leptin, and acylated ghrelin. In addition, the protein expression of growth hormone secretagogue receptor (GHSR) in the hypothalamus was increased by almost 4-fold in FR50 pups. In summary, maternal calorie restriction during the last third of pregnancy disrupts energy and metabolic hormones in milk, induces pup hyperleptinemia and hyperghrelinemia, and upregulates their hypothalamic GHSR, thus suggesting that the hypothalamic neuroendocrine circuitry may be working to address the early onset of obesity.
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Affiliation(s)
- Jocemara Patrícia Silva de Souza Parrela
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Ingridys Regina Borkenhagen
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Sarah Ramany Faria Salmeron
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Thalyne Aparecida Leite Lima
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Ginislene Dias Souza Miranda
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Hercules de Oliveira Costermani
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Camila Luiza Rodrigues Dos Santos Ricken
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Ester Vieira Alves
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
| | - Rodrigo Mello Gomes
- Laboratory of Endocrine Physiology and Metabolism, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - Júlio Cezar de Oliveira
- Research Group on Perinatal Programming of Metabolic Diseases: DOHaD Paradigm, Laboratory of Metabolic and Cardiovascular Diseases, Health Education and Research Center (NUPADS), Institute of Health Sciences, Federal University of Mato Grosso, University Campus of Sinop, Sinop, Mato Grosso, Brazil
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Strączek K, Horodnicka-Józwa A, Szmit-Domagalska J, Jackowski T, Safranow K, Petriczko E, Walczak M. Impact of One-Year Dietary Education on Change in Selected Anthropometric and Biochemical Parameters in Children with Excess Body Weight. Int J Environ Res Public Health 2022; 19:11686. [PMID: 36141955 PMCID: PMC9517116 DOI: 10.3390/ijerph191811686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/08/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Obesity is regarded as a civilization disease that increases mortality and the risk of cardiovascular complications. In Poland, the prevalence of excess body weight in the paediatric population has been steadily increasing. The consequences of excess body weight in the developmental age population affect children's health and destabilize their development. Appropriate dietary interventions are the main non-invasive methods of preventing and treating obesity. They should be aimed at the whole family, optimally with the use of simple tools such as the Healthy Eating Pyramid. Due to the increasing prevalence of excess body weight in the developmental age population and the problems with the treatment of this condition, studies were undertaken in order to determine the impact of a dietary intervention on anthropometric and biochemical parameters in children with excess body weight. A total of 68 (72.3%) children completed the study. Based on BMI SDS, 59 (86.8%) were diagnosed with obesity and 9 (13.2%) with overweight. After the completion of the one-year dietary educational program, a significant improvement in weight loss, waist and hip circumference, as well as the value of the WHtR index was demonstrated. There was also a significant increase in the percentage of muscle tissue and a decrease in the content of adipose tissue in the bodies of examined children. A significant improvement in the parameters of carbohydrate metabolism, and almost all parameters of lipid metabolism, except for total cholesterol. A significant (by 28.0%) reduction in the incidence of fatty liver was also noted. No influence of dietary education on arterial blood pressure was observed.
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Affiliation(s)
- Kamilla Strączek
- Department of Pediatrics, Endocrinology, Diabetology, Metabolic Diseases and Cardiology of the Developmental Age, Pomeranian Medical University, 71-252 Szczecin, Poland
| | - Anita Horodnicka-Józwa
- Department of Pediatrics, Endocrinology, Diabetology, Metabolic Diseases and Cardiology of the Developmental Age, Pomeranian Medical University, 71-252 Szczecin, Poland
| | - Justyna Szmit-Domagalska
- Department of Pediatrics, Endocrinology, Diabetology, Metabolic Diseases and Cardiology of the Developmental Age, Pomeranian Medical University, 71-252 Szczecin, Poland
| | - Tomasz Jackowski
- Department of Pediatrics, Endocrinology, Diabetology, Metabolic Diseases and Cardiology of the Developmental Age, Pomeranian Medical University, 71-252 Szczecin, Poland
| | - Krzysztof Safranow
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, 70-111 Szczecin, Poland
| | - Elżbieta Petriczko
- Department of Pediatrics, Endocrinology, Diabetology, Metabolic Diseases and Cardiology of the Developmental Age, Pomeranian Medical University, 71-252 Szczecin, Poland
| | - Mieczysław Walczak
- Department of Pediatrics, Endocrinology, Diabetology, Metabolic Diseases and Cardiology of the Developmental Age, Pomeranian Medical University, 71-252 Szczecin, Poland
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Wang Y, Li M, Chan CO, Yang G, Lam JCK, Law BCS, Lam TP, Hung ALH, Cheng JCY, Mok DKW, Lee WYW. Biological effect of dysregulated LBX1 on adolescent idiopathic scoliosis through modulating muscle carbohydrate metabolism. Spine J 2022; 22:1551-1565. [PMID: 35460899 DOI: 10.1016/j.spinee.2022.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 04/10/2022] [Accepted: 04/11/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Abnormal energy metabolism such as lower body weight and body mass index (BMI) and less fat mass is widely reported in patients with adolescent idiopathic scoliosis (AIS) and has been implicated in deformity development. However, the underlying mechanism is largely unclear. LBX1 is one of the promising AIS predisposing genes validated by multicenter studies. PURPOSE This study aimed to identify differentially expressed proteins (DEPs) relating to energy metabolism in AIS by using proteomic and metabolic analysis and to explore if the expression of these DEPs is associated with clinical parameters and modulated by LBX1. STUDY DESIGN This is a cross-sectional study using clinical data and biological samples followed by basic study using a cellular model. PATIENT SAMPLE Plasma samples were collected from Chinese girls with nonprogressive and progressive AIS (N=7 and 8, respectively) and age-matched healthy girls (N=50). Paraspinal muscle tissues were collected intraoperatively from concave and convex side of the apex of the major spinal curve in AIS (N=24) and either side from nonscoliosis patients (N=14). OUTCOME MEASURES Radiological Cobb angle and basic anthropometric data of recruited subjects were measured. The DEPs and metabolites were compared in plasma using proteomics and metabolomics technique. The relative expression of selected genes was measured in muscles. METHODS Plasma samples from AIS were collected at first clinical visit and were further divided into nonprogressive or progressive groups according to Cobb angle changes in 6-year follow-up. Age-matched healthy girls were recruited as control. High-performance liquid chromatography-mass spectrometry based proteomic analysis was carried out in three groups to identify DEPs and their annotated metabolic pathways. An independent cohort was used for validation by gas chromatography-mass spectrometry based metabolomic analysis. Paraspinal muscles were subjected to quantitative polymerase chain reaction (qPCR) followed by correlation analysis. Human skeletal muscle myoblast (HSMM) was used as the cellular model. RESULTS The likelihood of aberrant galactose metabolism and glycolysis was found to be associated with AIS curve progression as evidenced by the thirteen DEPs and seven related metabolites according to proteomic and metabolomic analysis. Some of the DEPs showed significantly altered expression in AIS concave and convex sides paraspinal muscles compared with those in nonscoliosis control. Four DEPs were found significantly and negatively correlated with LBX1 in AIS convex side paraspinal muscles. Overexpressing LBX1 in HSMM cells led to increased expression of three DEPs and decreased expression of three DEPs, respectively. CONCLUSIONS This is the first integrated proteomic and metabolomic analysis on AIS. Our findings show dysregulated galactose metabolism and glycolysis pathways in progressive group of AIS, suggesting the presence of abnormal energy metabolism at early stage of this disease, and their association with higher risk of progressing into more severe curvature. Evidence from ex vivo study with human muscle biopsies and in vitro study with human myoblast cells propose the possible effect of LBX1 on these two pathways in skeletal muscles. The present study provides new evidence of LBX1 function in AIS via modulating effect on the expression of energy metabolism related genes. This study might provide new insights into etiopathogenesis and development of novel treatment strategy targeting on abnormal body weight and BMI in patients with AIS. Additionally, the plasma proteomic and metabolomic studies suggested new candidates as biomarkers for establishing predictive model for AIS onset/progression.
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Affiliation(s)
- Yujia Wang
- Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong SAR, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Mengheng Li
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Chi-On Chan
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Guangpu Yang
- Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jacky Chun-Kit Lam
- Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Brian Chun-Sum Law
- Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Tsz-Ping Lam
- Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Alec Lik-Hang Hung
- Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Jack Chun-Yiu Cheng
- Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Daniel Kam-Wah Mok
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong SAR, China; Research Centre for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Wayne Yuk-Wai Lee
- Department of Orthopaedics and Traumatology, SH Ho Scoliosis Research Laboratory, The Chinese University of Hong Kong, Hong Kong SAR, China; Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong SAR, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
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Aoyama T, Imataki O, Notsu A, Yurikusa T, Ichimaru K, Tsuji M, Yoshitsugu K, Fukaya M, Enami T, Ikeda T. Examination of a nutritional treatment pathway according to pretreatment health status and stress levels of patients undergoing hematopoietic stem cell transplantation. PLoS One 2022; 17:e0271728. [PMID: 35913908 PMCID: PMC9342724 DOI: 10.1371/journal.pone.0271728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 07/06/2022] [Indexed: 11/19/2022] Open
Abstract
Introduction This study aimed to validate hematopoietic stem cell transplantation (HSCT) treatment via a tailored nutritional pathway in myeloablative conditioning (MAC), determine its efficacy in terms of remission, and explore associations between clinical outcomes and nutritional indicators. Methods We included patients who underwent MAC for HSCT at the Shizuoka Cancer Center Stem Cell Transplantation between 2015 and 2019. We evaluated outcomes from the day before treatment initiation (transplant date: day 0) to day 42. Results Among the 40 MAC cases (participant characteristics: 20/40 males, mean age of 52 years, and mean body mass index of 21.9 kg/m2), we found that the percent loss of body weight and loss of skeletal muscle mass were correlated with the basal energy expenditure rate (BEE rate; r = 0.70, p<0.001 and r = 0.49, p<0.01, respectively). Based on the receiver operating characteristics curves, the cutoff value for the BEE rate in terms of weight loss was 1.1. Salivary amylase levels did not significantly change during the treatment course. Continuous variables, including oral caloric intake and performance status, showed statistically significant correlations with nutrition-related adverse events during treatment (r = −0.93, p<0.01 and r = 0.91, p<0.01, respectively). Skeletal muscle mass before treatment initiation was an independent predictive variable for reduced 2-year survival (p = 0.04). Conclusion Our results support the validity of a safe nutritional pathway with a BEE rate of 1.1 for HSCT patients pretreated with MAC. Specifically, we found that this pathway could prevent weight loss in response to nutrition-related adverse events. Skeletal muscle mass before treatment was identified as an independent risk factor for reduced 2-year survival.
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Affiliation(s)
- Takashi Aoyama
- Dietary Department, Shizuoka Cancer Center, Shizuoka, Japan
- * E-mail:
| | - Osamu Imataki
- Division of Hematology and Stem Cell Transplantation, Kagawa University Hospital, Kagawa, Japan
| | - Akifumi Notsu
- Clinical Research Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - Takashi Yurikusa
- Division of Dentistry and Oral Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - Koki Ichimaru
- Division of Stem Cell Transplantation, Shizuoka Cancer Center, Shizuoka, Japan
| | - Masanori Tsuji
- Division of Stem Cell Transplantation, Shizuoka Cancer Center, Shizuoka, Japan
| | - Kanako Yoshitsugu
- Division of Stem Cell Transplantation, Shizuoka Cancer Center, Shizuoka, Japan
| | - Masafumi Fukaya
- Division of Stem Cell Transplantation, Shizuoka Cancer Center, Shizuoka, Japan
| | - Terukazu Enami
- Division of Stem Cell Transplantation, Shizuoka Cancer Center, Shizuoka, Japan
| | - Takashi Ikeda
- Division of Stem Cell Transplantation, Shizuoka Cancer Center, Shizuoka, Japan
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Abstract
ABSTRACT Nakagata, T, Yamada, Y, and Naito, H. Estimating energy cost of body weight resistance exercise using a multistage exercise test. J Strength Cond Res 36(5): 1290-1296, 2022-The purpose of this study was to examine energy cost of body weight resistance exercises with slow movement in young men using a multistage exercise test. Fifteen men aged 21-29 years performed 3 exercises (heel-raise, squat, and push-up) at different frequencies (1, 2, 3, 4, 5, and 6 repetitions·min-1). Oxygen consumption was measured using indirect calorimetry; we then computed a simple linear regression between aerobic energy expenditure (EE) and repetition frequency. The slope coefficient in the regression represents the energy cost of those exercises; we compared the extrapolated EE for a frequency of 10 repetitions·min-1. Gross EE increased linearly with repetition frequency in all subjects (y = ax + b). Energy cost was significantly greater in the case of the push-up than in the case of the squat {squat: 0.50 ± 0.14 (95% confidence interval [CI], 0.42-0.58); push-up: 0.77 ± 0.20 kcal (95% CI, 0.66-0.88); and the heel-raise elicited the lowest energy cost: 0.13 ± 0.04 kcal (95% CI, 0.11-0.15)}. Extrapolated EE at 10 repetitions·min-1 was 2.7 ± 0.5 kcal (2.3 metabolic equivalents [METs]), 6.3 ± 1.4 kcal (5.4 METs), and 9.2 ± 2.1 kcal (7.8 METs), respectively, according to the regression based on aerobic EE. These results will be useful for health professionals in prescribing resistance exercise programs improving muscle fitness and considering for weight management.
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Affiliation(s)
- Takashi Nakagata
- Graduate School of Health and Sports Science, Juntendo University, Inzai, Chiba, Japan;
- Sportology Center, Juntendo University Graduate School of Medicine, Bunkyo-ku, Tokyo, Japan; and
- Section of Healthy Longevity Research, National Institute of Health and Nutrition, NIBIOHN, Shinjuku-ku, Tokyo, Japan
| | - Yosuke Yamada
- Section of Healthy Longevity Research, National Institute of Health and Nutrition, NIBIOHN, Shinjuku-ku, Tokyo, Japan
| | - Hisashi Naito
- Graduate School of Health and Sports Science, Juntendo University, Inzai, Chiba, Japan;
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Wakefield CB, Lee VR, Johnston D, Boroumand P, Pillon NJ, Sayedyahossein S, O'Donnell BL, Tang J, Sanchez-Pupo RE, Barr KJ, Gros R, Flynn L, Borradaile NM, Klip A, Beier F, Penuela S. Pannexin 3 deletion reduces fat accumulation and inflammation in a sex-specific manner. Int J Obes (Lond) 2022; 46:726-738. [PMID: 34897286 DOI: 10.1038/s41366-021-01037-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 11/16/2021] [Accepted: 11/23/2021] [Indexed: 11/08/2022]
Abstract
BACKGROUND Pannexin 3 (PANX3) is a channel-forming glycoprotein that enables nutrient-induced inflammation in vitro, and genetic linkage data suggest that it regulates body mass index. Here, we characterized inflammatory and metabolic parameters in global Panx3 knockout (KO) mice in the context of forced treadmill running (FEX) and high-fat diet (HFD). METHODS C57BL/6N (WT) and KO mice were randomized to either a FEX running protocol or no running (SED) from 24 until 30 weeks of age. Body weight was measured biweekly, and body composition was measured at 24 and 30 weeks of age. Male WT and KO mice were fed a HFD from 12 to 28 weeks of age. Metabolic organs were analyzed for a panel of inflammatory markers and PANX3 expression. RESULTS In females there were no significant differences in body composition between genotypes, which could be due to the lack of PANX3 expression in female white adipose tissue, while male KOs fed a chow diet had lower body weight and lower fat mass at 24 and 30 weeks of age, which was reduced to the same extent as 6 weeks of FEX in WT mice. In addition, male KO mice exhibited significantly lower expression of multiple pro-inflammatory genes in white adipose tissue compared to WT mice. While on a HFD body weight differences were insignificant, multiple inflammatory genes were significantly different in quadriceps muscle and white adipose tissue resulting in a more anti-inflammatory phenotype in KO mice compared to WT. The lower fat mass in male KO mice may be due to significantly fewer adipocytes in their subcutaneous fat compared to WT mice. Mechanistically, adipose stromal cells (ASCs) cultured from KO mice grow significantly slower than WT ASCs. CONCLUSION PANX3 is expressed in male adult mouse adipose tissue and may regulate adipocyte numbers, influencing fat accumulation and inflammation.
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Affiliation(s)
- C Brent Wakefield
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
- Western's Bone and Joint Institute, The Dr. Sandy Kirkley Centre for Musculoskeletal Research, University Hospital, London, ON, N6G 2V4, Canada
| | - Vanessa R Lee
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Danielle Johnston
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Parastoo Boroumand
- Cell Biology Program, The Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada
- Department of Biochemistry, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Nicolas J Pillon
- Cell Biology Program, The Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada
- Department of Physiology, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Samar Sayedyahossein
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
- Department of Physiology and Pharmacology, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Brooke L O'Donnell
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Justin Tang
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Rafael E Sanchez-Pupo
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Kevin J Barr
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Robert Gros
- Department of Physiology and Pharmacology, University of Western Ontario, London, ON, N6A 5C1, Canada
- Robarts Research Institute, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Lauren Flynn
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada
- Western's Bone and Joint Institute, The Dr. Sandy Kirkley Centre for Musculoskeletal Research, University Hospital, London, ON, N6G 2V4, Canada
- Department of Chemical and Biomedical Engineering, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Nica M Borradaile
- Department of Physiology and Pharmacology, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Amira Klip
- Cell Biology Program, The Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada
- Department of Physiology, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Frank Beier
- Western's Bone and Joint Institute, The Dr. Sandy Kirkley Centre for Musculoskeletal Research, University Hospital, London, ON, N6G 2V4, Canada
- Department of Physiology and Pharmacology, University of Western Ontario, London, ON, N6A 5C1, Canada
| | - Silvia Penuela
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada.
- Western's Bone and Joint Institute, The Dr. Sandy Kirkley Centre for Musculoskeletal Research, University Hospital, London, ON, N6G 2V4, Canada.
- Department of Oncology, Division of Experimental Oncology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, N6A 5C1, Canada.
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Hudson AD, Kauffman AS. Metabolic actions of kisspeptin signaling: Effects on body weight, energy expenditure, and feeding. Pharmacol Ther 2022; 231:107974. [PMID: 34530008 PMCID: PMC8884343 DOI: 10.1016/j.pharmthera.2021.107974] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/20/2021] [Accepted: 07/26/2021] [Indexed: 12/18/2022]
Abstract
Kisspeptin (encoded by the Kiss1 gene) and its receptor, KISS1R (encoded by the Kiss1r gene), have well-established roles in stimulating reproduction via central actions on reproductive neural circuits, but recent evidence suggests that kisspeptin signaling also influences metabolism and energy balance. Indeed, both Kiss1 and Kiss1r are expressed in many metabolically-relevant peripheral tissues, including both white and brown adipose tissue, the liver, and the pancreas, suggesting possible actions on these tissues or involvement in their physiology. In addition, there may be central actions of kisspeptin signaling, or factors co-released from kisspeptin neurons, that modulate metabolic, feeding, or thermoregulatory processes. Accumulating data from animal models suggests that kisspeptin signaling regulates a wide variety of metabolic parameters, including body weight and energy expenditure, adiposity and adipose tissue function, food intake, glucose metabolism, respiratory rates, locomotor activity, and thermoregulation. Herein, the current evidence for the involvement of kisspeptin signaling in each of these physiological parameters is reviewed, gaps in knowledge identified, and future avenues of important research highlighted. Collectively, the discussed findings highlight emerging non-reproductive actions of kisspeptin signaling in metabolism and energy balance, in addition to previously documented roles in reproductive control, but also emphasize the need for more research to resolve current controversies and uncover underlying molecular and physiological mechanisms.
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Affiliation(s)
- Alexandra D Hudson
- Dept. of OBGYN and Reproductive Sciences, University of California San Diego, La Jolla, CA 92093, United States of America
| | - Alexander S Kauffman
- Dept. of OBGYN and Reproductive Sciences, University of California San Diego, La Jolla, CA 92093, United States of America.
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Dogra S, Woolf K, Xia Y, Getz A, Newman JD, Slater J, Shah B. Long-term dietary and weight changes following a short-term dietary intervention study: EVADE-CAD trial follow-up. Coron Artery Dis 2022; 33:144-147. [PMID: 34010190 PMCID: PMC8599527 DOI: 10.1097/mca.0000000000001072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Siddhant Dogra
- Department of Medicine (Cardiology), NYU School of Medicine, New York, NY
| | - Kathleen Woolf
- Department of Nutrition and Food Studies, NYU Steinhardt, New York, NY
| | - Yuhe Xia
- Department of Population Health (Biostatistics), NYU School of Medicine, New York, NY
| | - Alec Getz
- Department of Nutrition and Food Studies, NYU Steinhardt, New York, NY
| | - Jonathan D. Newman
- Department of Medicine (Cardiology), NYU School of Medicine, New York, NY
| | - James Slater
- Department of Medicine (Cardiology), NYU School of Medicine, New York, NY
| | - Binita Shah
- Department of Medicine (Cardiology), NYU School of Medicine, New York, NY
- Department of Medicine (Cardiology), VA New York Harbor Healthcare System (Manhattan Campus), New York, NY
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Piaggi P, Basolo A, Martin CK, Redman LM, Votruba SB, Krakoff J. The counterbalancing effects of energy expenditure on body weight regulation: Orexigenic versus energy-consuming mechanisms. Obesity (Silver Spring) 2022; 30:639-644. [PMID: 35166035 PMCID: PMC9303538 DOI: 10.1002/oby.23332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/23/2021] [Accepted: 10/14/2021] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Weight change is a dynamic function of whole-body energy balance resulting from the interplay between energy intake and energy expenditure (EE). Recent reports have provided evidence for the existence of a causal effect of EE on energy intake, suggesting that increased EE may drive overeating, thereby promoting future weight gain. This study investigated the relationships between ad libitum energy intake and 24-hour EE (24-h EE) in sedentary conditions versus long-term, free-living weight change using a mediation analysis framework. METHODS Native American individuals (n = 61, body fat by dual-energy x-ray absorptiometry: 39.7% [SD 9.5%]) were admitted to the clinical inpatient unit and had baseline measurements as follows: 1) 24-h EE accurately measured in a whole-room indirect calorimeter during energy balance and weight stability; and 2) ad libitum energy intake objectively assessed for 3 days using computerized vending machines. Free-living weight change was assessed after a median follow-up time of 1.7 years (interquartile range: 1.2-2.9). RESULTS The total effect of 24-h EE on weight change (-0.23 kg per 100-kcal/d difference in EE at baseline) could be partitioned into the following two independent and counterbalanced effects: higher EE protective against weight gain (-0.46 kg per 100-kcal/d difference in EE at baseline) and an orexigenic effect promoting overeating, thereby favoring weight gain (+0.23 kg per 100-kcal/d difference in EE at baseline). CONCLUSIONS The overall impact of EE on body weight regulation should be evaluated by also considering its collateral effect on energy intake. Any weight loss intervention aimed to induce energy deficits by increasing EE should take into account any potential orexigenic effects that promote compensatory overeating, thereby limiting the efficacy of these obesity therapies.
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Affiliation(s)
- Paolo Piaggi
- Obesity and Diabetes Clinical Research SectionNational Institute of Diabetes and Digestive and Kidney DiseasesNational Institutes of HealthPhoenixArizonaUSA
- Department of Information EngineeringUniversity of PisaPisaItaly
| | - Alessio Basolo
- Obesity and Diabetes Clinical Research SectionNational Institute of Diabetes and Digestive and Kidney DiseasesNational Institutes of HealthPhoenixArizonaUSA
| | - Corby K. Martin
- Pennington Biomedical Research CenterBaton RougeLouisianaUSA
| | | | - Susanne B. Votruba
- Obesity and Diabetes Clinical Research SectionNational Institute of Diabetes and Digestive and Kidney DiseasesNational Institutes of HealthPhoenixArizonaUSA
| | - Jonathan Krakoff
- Obesity and Diabetes Clinical Research SectionNational Institute of Diabetes and Digestive and Kidney DiseasesNational Institutes of HealthPhoenixArizonaUSA
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Bae CR, Kwon YG. CU06-1004 modulates the adenosine monophosphate (AMP)-associated protein kinase (AMPK) signaling pathway and inhibits lipogenesis in 3T3-L1 adipocytes and high-fat diet-induced obese mice. Life Sci 2022; 296:120440. [PMID: 35240161 DOI: 10.1016/j.lfs.2022.120440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/27/2022] [Accepted: 02/24/2022] [Indexed: 11/19/2022]
Abstract
AIMS The endothelial dysfunction blocker CU06-1004 exhibits anti-inflammatory effects in chronic diseases. Obesity is a major cause of chronic inflammation, and the effect of CU06-1004 on obesity has not been studied yet. Therefore, in this study, we investigated the anti-obesity properties of CU06-1004 in 3T3-L1 adipocytes and high-fat diet-induced obese mice. METHODS Differentiated 3T3-L1 adipocytes were treated with various concentrations of CU06-1004 (0-20 μg/mL) and subjected to Oil Red O staining to determine the levels of lipid droplet and intracellular triglyceride accumulation. Additionally, high-fat diet-induced obese C57BL/6J mice were administered with a low (10 mg/kg/day) or high (20 mg/kg/day) oral dose of CU06-1004. Finally, the expressions of genes and proteins involved in the adenosine monophosphate (AMP)-activated protein kinase (AMPK) signaling pathway were assessed by real-time polymerase chain reaction and Western blot, respectively. KEY FINDINGS The CU06-1004 administration reduced lipid accumulation in the 3T3-L1 adipocytes by inhibiting the expressions of peroxisome proliferator-activated receptor gamma, CCAAT/enhancer-binding protein alpha, fatty acid binding protein 4, and fatty acid synthase in a dose-dependent manner. Additionally, it significantly increased the phosphorylation of AMPKα and acetyl-CoA carboxylase in the 3T3-L1 adipocytes. An oral administration of high dose of CU06-1004 in the obese mice significantly decreased their body weight and the mesenteric white adipose tissue weight. Furthermore, CU06-1004 improved hepatic steatosis by reducing lipogenesis, besides improving insulin resistance and exerting systemic anti-inflammatory effects. SIGNIFICANCE Therefore, CU06-1004 may have therapeutic potential in the prevention of obesity and obesity-related disorders.
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Affiliation(s)
- Cho-Rong Bae
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Young-Guen Kwon
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea.
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Green CJ, Marjot T, Walsby-Tickle J, Charlton C, Cornfield T, Westcott F, Pinnick KE, Moolla A, Hazlehurst JM, McCullagh J, Tomlinson JW, Hodson L. Metformin maintains intrahepatic triglyceride content through increased hepatic de novo lipogenesis. Eur J Endocrinol 2022; 186:367-377. [PMID: 35038311 PMCID: PMC8859923 DOI: 10.1530/eje-21-0850] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 01/17/2022] [Indexed: 12/05/2022]
Abstract
OBJECTIVE Metformin is a first-line pharmacotherapy in the treatment of type 2 diabetes, a condition closely associated with non-alcoholic fatty liver disease (NAFLD). Although metformin promotes weight loss and improves insulin sensitivity, its effect on intrahepatic triglyceride (IHTG) remains unclear. We investigated the effect of metformin on IHTG, hepatic de novo lipogenesis (DNL), and fatty acid (FA) oxidation in vivo in humans. DESIGN AND METHODS Metabolic investigations, using stable-isotope tracers, were performed in ten insulin-resistant, overweight/obese human participants with NAFLD who were treatment naïve before and after 12 weeks of metformin treatment. The effect of metformin on markers of s.c. adipose tissue FA metabolism and function, along with the plasma metabolome, was investigated. RESULTS Twelve weeks of treatment with metformin resulted in a significant reduction in body weight and improved insulin sensitivity, but IHTG content and FA oxidation remained unchanged. Metformin treatment was associated with a significant decrease in VLDL-triglyceride (TG) concentrations and a significant increase in the relative contribution of DNL-derived FAs to VLDL-TG. There were subtle and relatively few changes in s.c. adipose tissue FA metabolism and the plasma metabolome with metformin treatment. CONCLUSIONS We demonstrate the mechanisms of action of metformin whereby it improves insulin sensitivity and promotes weight loss, without improvement in IHTG; these observations are partly explained through increased hepatic DNL and a lack of change in FA oxidation.
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Affiliation(s)
- Charlotte J Green
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, UK
| | - Thomas Marjot
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, UK
- Translational Gastroenterology Unit, NIHR Oxford Biomedical Research Centre, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | | | - Catriona Charlton
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, UK
| | - Thomas Cornfield
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, UK
| | - Felix Westcott
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, UK
| | - Katherine E Pinnick
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, UK
| | - Ahmad Moolla
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, UK
| | - Jonathan M Hazlehurst
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, UK
- Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston, Birmingham, UK
| | - James McCullagh
- Chemistry Research Laboratory, University of Oxford, Oxford, UK
| | - Jeremy W Tomlinson
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford University Hospital Trusts, Oxford, UK
| | - Leanne Hodson
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford University Hospital Trusts, Oxford, UK
- Correspondence should be addressed to L Hodson;
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Abstract
Leptin, produced and secreted by white adipose tissue in tight relationship with adipose mass, informs the brain about the status of the energy stores serving as the main peripheral signal for energy balance regulation through interaction with a multitude of highly interconnected neuronal populations. Most obese patients display resistance to the anorectic effect of the hormone. The present review unravels the multiple levels of complexity that trigger hypothalamic response to leptin with the objective of highlighting those critical hubs that, mainly in the hypothalamic arcuate nucleus, may undergo obesity-induced alterations and create an obstacle to leptin action. Several mechanisms underlying leptin resistance have been proposed, possibly representing useful targets to empower leptin effects. Among these, a special focus is herein dedicated to detail how leptin gains access into the brain and how neuronal plasticity may interfere with leptin function.
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Affiliation(s)
- Margherita Maffei
- Institute of Clinical Physiology, CNR, Via Moruzzi 1, 56124, Pisa, Italy.
- Obesity and Lipodystrophy Center, University Hospital of Pisa, Via Paradisa 2, 56124, Pisa, Italy.
| | - Antonio Giordano
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Via Tronto 10/A, 60020, Ancona, Italy.
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Munley KM, Dutta S, Jasnow AM, Demas GE. Adrenal MT 1 melatonin receptor expression is linked with seasonal variation in social behavior in male Siberian hamsters. Horm Behav 2022; 138:105099. [PMID: 34920297 PMCID: PMC8847318 DOI: 10.1016/j.yhbeh.2021.105099] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/10/2021] [Accepted: 11/24/2021] [Indexed: 02/03/2023]
Abstract
Many animals exhibit pronounced changes in physiology and behavior on a seasonal basis, and these adaptations have evolved to promote survival and reproductive success. While the neuroendocrine pathways mediating seasonal reproduction are well-studied, far less is known about the mechanisms underlying seasonal changes in social behavior, particularly outside of the context of the breeding season. Our previous work suggests that seasonal changes in melatonin secretion are important in regulating aggression in Siberian hamsters (Phodopus sungorus); it is unclear, however, how melatonin acts via its receptors to modulate seasonal variation in social behavior. In this study, we infused a MT1 melatonin receptor-expressing (MT1) or control (CON) lentivirus into the adrenal glands of male Siberian hamsters. We then housed hamsters in long-day (LD) or short-day (SD) photoperiods, administered timed melatonin or control injections, and quantified aggressive and non-aggressive social behaviors (e.g., investigation, self-grooming) following 10 weeks of treatment. LD hamsters infused with the MT1 lentivirus had significantly higher adrenal mt1 expression than LD CON hamsters, as determined via quantitative PCR. While melatonin administration was necessary to induce SD-like reductions in body and relative reproductive mass, only LD hamsters infused with the MT1 lentivirus displayed SD-like changes in social behavior, including increased aggression and decreased investigation and grooming. In addition, SD CON and LD hamsters infused with the MT1 lentivirus exhibited similar relationships between adrenal mt1 expression and aggressive behavior. Together, our findings suggest a role for adrenal MT1 receptor signaling in regulating behavior, but not energetics or reproduction in seasonally breeding species.
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Affiliation(s)
- Kathleen M Munley
- Department of Biology and Center for the Integrative Study of Animal Behavior, Indiana University, Bloomington, IN 47405, USA.
| | - Sohini Dutta
- Department of Psychological Sciences, Kent State University, Kent, OH 44240, USA; Department of Neuroscience, Mount Sinai School of Medicine, New York, NY 10029, USA
| | - Aaron M Jasnow
- Department of Psychological Sciences, Kent State University, Kent, OH 44240, USA; Department of Pharmacology, Physiology & Neuroscience, University of South Carolina School of Medicine, Columbia, SC 29209, USA
| | - Gregory E Demas
- Department of Biology and Center for the Integrative Study of Animal Behavior, Indiana University, Bloomington, IN 47405, USA
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