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Bai H, Wang L, Lambo MT, Li Y, Zhang Y. Effect of changing the proportion of C16:0 and cis-9 C18:1 in fat supplements on rumen fermentation, glucose and lipid metabolism, antioxidation capacity, and visceral fatty acid profile in finishing Angus bulls. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2024; 18:39-48. [PMID: 39026601 PMCID: PMC11254535 DOI: 10.1016/j.aninu.2024.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 03/29/2024] [Accepted: 04/16/2024] [Indexed: 07/20/2024]
Abstract
This study evaluated the effects of different proportions of palmitic (C16:0) and oleic (cis-9 C18:1) acids in fat supplements on rumen fermentation, glucose (GLU) and lipid metabolism, antioxidant function, and visceral fat fatty acid (FA) composition in Angus bulls. The design of the experiment was a randomized block design with 3 treatments of 10 animals each. A total of 30 finishing Angus bulls (21 ± 0.5 months) with an initial body weight of 626 ± 69 kg were blocked by weight into 10 blocks, with 3 bulls per block. The bulls in each block were randomly assigned to one of three experimental diets: (1) control diet without additional fat (CON), (2) CON + 2.5% palmitic calcium salt (PA; 90% C16:0), (3) CON + 2.5% mixed FA calcium salts (MA; 60% C16:0 + 30% cis-9 C18:1). Both fat supplements increased C18:0 and cis-9 C18:1 in visceral fat (P < 0.05) and up-regulated the expression of liver FA transport protein 5 (FATP5; P < 0.001). PA increased the insulin concentration (P < 0.001) and aspartate aminotransferase activity (AST; P = 0.030) in bull's blood while reducing the GLU concentration (P = 0.009). PA increased the content of triglycerides (TG; P = 0.014) in the liver, the content of the C16:0 in visceral fat (P = 0.004), and weight gain (P = 0.032), and up-regulated the expression of liver diacylglycerol acyltransferase 2 (DGAT2; P < 0.001) and stearoyl-CoA desaturase 1 (SCD1; P < 0.05). MA increased plasma superoxide dismutase activity (SOD; P = 0.011), reduced the concentration of acetate and total volatile FA (VFA) in rumen fluid (P < 0.05), and tended to increase plasma non-esterified FA (NEFA; P = 0.069) concentrations. Generally, high C16:0 fat supplementation increased weight gain in Angus bulls and triggered the risk of fatty liver, insulin resistance, and reduced antioxidant function. These adverse effects were alleviated by partially replacing C16:0 with cis-9 C18:1.
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Affiliation(s)
- Haixin Bai
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Lubo Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Modinat Tolani Lambo
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Yang Li
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Yonggen Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
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Boschi F, Negri A, Conti A, Bernardi P, Chirumbolo S, Sbarbati A. The human dermal white adipose tissue (dWAT) morphology: A multimodal imaging approach. Ann Anat 2024; 255:152289. [PMID: 38848928 DOI: 10.1016/j.aanat.2024.152289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 05/02/2024] [Accepted: 05/27/2024] [Indexed: 06/09/2024]
Abstract
BACKGROUND Dermal white adipose tissue (dWAT) in humans can be characterized as a relaxed dermal skin compartment consisting of functionally interlinked adipocytes. dWAT is typically discerned both in terms of morphology and function from subcutaneous white adipose tissue (sWAT). In particular in human thigh, the dWAT appears as thin extensions from the adipose panniculus to the dermis, and it is primarily associated with pilosebaceous units, hair follicles, sebaceous glands, and erector pili muscles. In this work, human fat tissue samples obtained post-mortem from the gluteo-femoral region were analyzed focusing on the thin extensions of dWAT named dermal cones. This anatomical region was chosen to deepen the dWAT morphological features of this site which is interesting both for clinical applications and genetical studies. The purpose of this exploratory methodological study was to gain deeper insights into the morphological features of human dWAT through a multimodal imaging approach. METHODS Optical microscopy, Magnetic Resonance Imaging (MRI) and Scanning Electron Microscopy (SEM), have been employed in this study. The cones' length and their distances were measured on the acquired images for optical microscopy and SEM. The cone's apparent regular distribution in MRI images was evaluated using a mathematical criterion, the conformity ratio, which is the ratio of the mean nearest-neighbor distance to its standard deviation. RESULTS The imaging techniques revealed white adipocytes forming a layer, referred to as sWAT, with cones measuring nearly 2 mm in size measured on SEM and Optical images (2.1 ± 0.4 mm), with the lower part embedded in the sWAT and the upper part extending into the dermis. The distance between the cones results about 1 mm measured on MRI images and they show an overall semiregular distribution. CONCLUSIONS MRI images demonstrated an orderly arrangement of cones, and their 3D reconstruction allowed to elucidate the dermal cones' disposition in the tissue sample and a more general comprehensive visualization of the entire fat structure within the dermis.
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Affiliation(s)
- Federico Boschi
- Department of Engineering for Innovation Medicine, Strada Le Grazie 8, Verona 37134, Italy.
| | - Alessandro Negri
- Department of Neurosciences, Biomedicine and Movement Sciences, Strada Le Grazie 8, Verona 37134, Italy
| | - Anita Conti
- Department of Neurosciences, Biomedicine and Movement Sciences, Strada Le Grazie 8, Verona 37134, Italy
| | - Paolo Bernardi
- Department of Neurosciences, Biomedicine and Movement Sciences, Strada Le Grazie 8, Verona 37134, Italy
| | - Salvatore Chirumbolo
- Department of Engineering for Innovation Medicine, Strada Le Grazie 8, Verona 37134, Italy
| | - Andrea Sbarbati
- Department of Neurosciences, Biomedicine and Movement Sciences, Strada Le Grazie 8, Verona 37134, Italy
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Mallio CA, Cea L, D’Andrea V, Buoso A, Bernetti C, Beomonte Zobel B, Greco F. Visceral Adiposity and Its Impact on Nephrolithiasis: A Narrative Review. J Clin Med 2024; 13:4065. [PMID: 39064104 PMCID: PMC11277464 DOI: 10.3390/jcm13144065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 06/30/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
Kidney stones represent a serious medical problem, resulting from several factors such as diet, genetics, and certain medical conditions. Visceral adipose tissue has been shown in recent research to play a significant role in kidney stone formation, making it a more precise indicator than traditional obesity indicators such as body mass index. The main aim of this review is to summarize studies on visceral obesity as a predictive marker for nephrolithiasis and to highlight new mechanistic pathways such as adipokine-mediated inflammation and its impact on kidney stone formation. This review emphasizes the importance of considering visceral fat in the prevention and management of kidney stones, suggesting that targeted strategies to reduce visceral fat could decrease the incidence of kidney stones and their management costs. Further prospective studies are needed to validate these findings and propose preventive strategies based on visceral adiposity assessments.
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Affiliation(s)
- Carlo Augusto Mallio
- Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200, 00128 Roma, Italy; (C.A.M.); (L.C.); (V.D.); (A.B.); (C.B.); (B.B.Z.)
- Research Unit of Radiology, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Roma, Italy
| | - Laura Cea
- Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200, 00128 Roma, Italy; (C.A.M.); (L.C.); (V.D.); (A.B.); (C.B.); (B.B.Z.)
- Research Unit of Radiology, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Roma, Italy
| | - Valerio D’Andrea
- Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200, 00128 Roma, Italy; (C.A.M.); (L.C.); (V.D.); (A.B.); (C.B.); (B.B.Z.)
- Research Unit of Radiology, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Roma, Italy
| | - Andrea Buoso
- Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200, 00128 Roma, Italy; (C.A.M.); (L.C.); (V.D.); (A.B.); (C.B.); (B.B.Z.)
- Research Unit of Radiology, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Roma, Italy
| | - Caterina Bernetti
- Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200, 00128 Roma, Italy; (C.A.M.); (L.C.); (V.D.); (A.B.); (C.B.); (B.B.Z.)
- Research Unit of Radiology, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Roma, Italy
| | - Bruno Beomonte Zobel
- Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200, 00128 Roma, Italy; (C.A.M.); (L.C.); (V.D.); (A.B.); (C.B.); (B.B.Z.)
- Research Unit of Radiology, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Roma, Italy
| | - Federico Greco
- Research Unit of Radiology, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128 Roma, Italy
- Department of Radiology, Cittadella della Salute, Azienda Sanitaria Locale di Lecce, Piazza Filippo Bottazzi, 2, 73100 Lecce, Italy
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Marcarini JAC, Grippa WR, Neto LCBS, Podestá OPG, Bolsoni-Lopes A, Nunes KZ, Lopes-Júnior LC. Nutritional status of women with non-metastatic breast cancer receiving outpatient chemotherapy. Nutrition 2024; 123:112411. [PMID: 38518541 DOI: 10.1016/j.nut.2024.112411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 02/14/2024] [Accepted: 02/24/2024] [Indexed: 03/24/2024]
Abstract
OBJECTIVES The aim of this study was to evaluate and compare the nutritional status of women with stage I to III breast cancer in the first and third cycles of outpatient chemotherapy and to identify factors associated with it. METHODS The prospective longitudinal study was conducted at a Reference Hospital for Cancer Care in Brazil and included women aged ≥18 y diagnosed with stage I to III breast cancer receiving outpatient chemotherapy. Assessments were performed during the 1st and 3rd cycles of chemotherapy, including anthropometric measurements, sociodemographic data, clinical information, and quality of life. Nutritional risk was assessed using the NRS-2002. RESULTS Overweight was predominant in both chemotherapy cycles. Approximately 6.67% and 10% of patients were at nutritional risk in the 1st and 3rd chemotherapy cycles, respectively. Anxiety/depression was prevalent in the 1st chemotherapy cycle and was significantly associated with nutritional risk (P = 0.002). The variables age in cycle 3 and pain/discomfort in cycle 1 (P = 0.049 and P = 0.043, respectively) showed a significant association with nutritional risk. CONCLUSIONS This study highlights the complex interaction between nutritional status, neuropsychological symptoms, and sociodemographic characteristics in breast cancer patients during chemotherapy, and underscores the need for personalized interventions to improve oncological care.
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Affiliation(s)
| | - Wesley Rocha Grippa
- Graduate Program in Public Health, Federal University of Espírito Santo (UFES), Vitoria, ES, Brazil
| | | | | | - Andressa Bolsoni-Lopes
- Graduate Program in Nutrition and Health, Federal University of Espírito Santo (UFES), Vitoria, ES, Brazil
| | - Karolini Zuqui Nunes
- Graduate Program in Nutrition and Health, Federal University of Espírito Santo (UFES), Vitoria, ES, Brazil; Graduate Program in Public Health, Federal University of Espírito Santo (UFES), Vitoria, ES, Brazil
| | - Luís Carlos Lopes-Júnior
- Graduate Program in Nutrition and Health, Federal University of Espírito Santo (UFES), Vitoria, ES, Brazil; Graduate Program in Public Health, Federal University of Espírito Santo (UFES), Vitoria, ES, Brazil.
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Divoux A, Whytock KL, Halasz L, Hopf ME, Sparks LM, Osborne TF, Smith SR. Distinct subpopulations of human subcutaneous adipose tissue precursor cells revealed by single-cell RNA sequencing. Am J Physiol Cell Physiol 2024; 326:C1248-C1261. [PMID: 38581663 PMCID: PMC11193533 DOI: 10.1152/ajpcell.00726.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 04/08/2024]
Abstract
Adipose-derived stem cells (ADSCs) play an important role in the differential capacity for excess energy storage between upper body abdominal (ABD) adipose tissue (AT) and lower body gluteofemoral (GF) AT. We cultured ADSCs from subcutaneous ABD AT and GF AT isolated from eight women with differential body fat distribution and performed single-cell RNA sequencing. Six populations of ADSCs were identified and segregated according to their anatomical origin. The three ADSC subpopulations in GF AT were characterized by strong cholesterol/fatty acid (FA) storage and proliferation signatures. The two ABD subpopulations, differentiated by higher expression of committed preadipocyte marker genes, were set apart by differential expression of extracellular matrix and ribosomal genes. The last population, identified in both depots, was similar to smooth muscle cells and when individually isolated and cultured in vitro they differentiated less than the other subpopulations. This work provides important insight into the use of ADSC as an in vitro model of adipogenesis and suggests that specific subpopulations of GF-ADSCs contribute to the more robust capacity for GF-AT to expand and grow compared with ABD-AT in women.NEW & NOTEWORTHY Identification of distinct subpopulations of adipose-derived stem cells (ADSCs) in upper body abdominal subcutaneous (ABD) and lower body gluteofemoral subcutaneous (GF) adipose tissue depots. In ABD-ADSCs, subpopulations are more committed to adipocyte lineage. GF-ADSC subpopulations are enriched for genes involved in lipids and cholesterol metabolism. Similar depot differences were found in stem cell population identified in freshly isolated stoma vascular fraction. The repertoire of ADSCs subpopulations was different in apple-shaped versus pear-shaped women.
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Affiliation(s)
- Adeline Divoux
- Translational Research Institute, AdventHealth, Orlando, Florida, United States
| | - Katie L Whytock
- Translational Research Institute, AdventHealth, Orlando, Florida, United States
| | - Laszlo Halasz
- Division of Diabetes Endocrinology and Metabolism, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, United States
- Department of Medicine, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, United States
- Department of Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, United States
- Department of Pediatrics, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, United States
| | - Meghan E Hopf
- Translational Research Institute, AdventHealth, Orlando, Florida, United States
| | - Lauren M Sparks
- Translational Research Institute, AdventHealth, Orlando, Florida, United States
| | - Timothy F Osborne
- Division of Diabetes Endocrinology and Metabolism, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, United States
- Department of Medicine, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, United States
- Department of Biological Chemistry, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, United States
- Department of Pediatrics, Johns Hopkins University School of Medicine, Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida, United States
| | - Steven R Smith
- Translational Research Institute, AdventHealth, Orlando, Florida, United States
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Bettinetti-Luque M, Trujillo-Estrada L, Garcia-Fuentes E, Andreo-Lopez J, Sanchez-Varo R, Garrido-Sánchez L, Gómez-Mediavilla Á, López MG, Garcia-Caballero M, Gutierrez A, Baglietto-Vargas D. Adipose tissue as a therapeutic target for vascular damage in Alzheimer's disease. Br J Pharmacol 2024; 181:840-878. [PMID: 37706346 DOI: 10.1111/bph.16243] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 08/11/2023] [Accepted: 09/01/2023] [Indexed: 09/15/2023] Open
Abstract
Adipose tissue has recently been recognized as an important endocrine organ that plays a crucial role in energy metabolism and in the immune response in many metabolic tissues. With this regard, emerging evidence indicates that an important crosstalk exists between the adipose tissue and the brain. However, the contribution of adipose tissue to the development of age-related diseases, including Alzheimer's disease, remains poorly defined. New studies suggest that the adipose tissue modulates brain function through a range of endogenous biologically active factors known as adipokines, which can cross the blood-brain barrier to reach the target areas in the brain or to regulate the function of the blood-brain barrier. In this review, we discuss the effects of several adipokines on the physiology of the blood-brain barrier, their contribution to the development of Alzheimer's disease and their therapeutic potential. LINKED ARTICLES: This article is part of a themed issue From Alzheimer's Disease to Vascular Dementia: Different Roads Leading to Cognitive Decline. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v181.6/issuetoc.
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Affiliation(s)
- Miriam Bettinetti-Luque
- Departamento de Biología Celular, Genética y Fisiología, Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma BIONAND, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
| | - Laura Trujillo-Estrada
- Departamento de Biología Celular, Genética y Fisiología, Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma BIONAND, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
- CIBER de Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
| | - Eduardo Garcia-Fuentes
- Unidad de Gestión Clínica Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma BIONAND, Málaga, Spain
- CIBER de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto de Salud Carlos III, Madrid, Spain
| | - Juana Andreo-Lopez
- Departamento de Biología Celular, Genética y Fisiología, Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma BIONAND, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
| | - Raquel Sanchez-Varo
- Departamento de Biología Celular, Genética y Fisiología, Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma BIONAND, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
- CIBER de Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
- Departamento de Fisiología Humana, Histología Humana, Anatomía Patológica y Educación Física y Deportiva, Facultad de Medicina, Universidad de Málaga, Málaga, Spain
| | - Lourdes Garrido-Sánchez
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma BIONAND, Málaga, Spain
| | - Ángela Gómez-Mediavilla
- Departamento de Farmacología, Facultad de Medicina. Instituto Teófilo Hernando para la I+D de Fármacos, Universidad Autónoma de Madrid, Madrid, Spain
| | - Manuela G López
- Departamento de Farmacología, Facultad de Medicina. Instituto Teófilo Hernando para la I+D de Fármacos, Universidad Autónoma de Madrid, Madrid, Spain
- Instituto de Investigaciones Sanitarias (IIS-IP), Hospital Universitario de la Princesa, Madrid, Spain
| | - Melissa Garcia-Caballero
- Departamento de Biología Molecular y Bioquímica, Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma BIONAND, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
| | - Antonia Gutierrez
- Departamento de Biología Celular, Genética y Fisiología, Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma BIONAND, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
- CIBER de Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
| | - David Baglietto-Vargas
- Departamento de Biología Celular, Genética y Fisiología, Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma BIONAND, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
- CIBER de Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
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Li Y, Long J, Zhang Z, Yin W. Insights into the unique roles of dermal white adipose tissue (dWAT) in wound healing. Front Physiol 2024; 15:1346612. [PMID: 38465261 PMCID: PMC10920283 DOI: 10.3389/fphys.2024.1346612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 01/31/2024] [Indexed: 03/12/2024] Open
Abstract
Dermal white adipose tissue (dWAT) is a newly recognized layer of adipocytes within the reticular dermis of the skin. In many mammals, this layer is clearly separated by panniculus carnosus from subcutaneous adipose tissue (sWAT). While, they concentrated around the hair shaft and follicle, sebaceous gland, and arrector pili muscle, and forms a very specific cone geometry in human. Both the anatomy and the histology indicate that dWAT has distinct development and functions. Different from sWAT, the developmental origin of dWAT shares a common precursor with dermal fibroblasts during embryogenesis. Therefore, when skin injury happens and mature adipocytes in dWAT are exposed, they may undergo lipolysis and dedifferentiate into fibroblasts to participate in wound healing as embryogenetic stage. Studies using genetic strategies to selectively ablate dermal adipocytes observed delayed revascularization and re-epithelialization in wound healing. This review specifically summarizes the hypotheses of the functions of dWAT in wound healing. First, lipolysis of dermal adipocytes could contribute to wound healing by regulating inflammatory macrophage infiltration. Second, loss of dermal adipocytes occurs at the wound edge, and adipocyte-derived cells then become ECM-producing wound bed myofibroblasts during the proliferative phase of repair. Third, mature dermal adipocytes are rich resources for adipokines and cytokines and could release them in response to injury. In addition, the dedifferentiated dermal adipocytes are more sensitive to redifferentiation protocol and could undergo expansion in infected wound. We then briefly introduce the roles of dWAT in protecting the skin from environmental challenges: production of an antimicrobial peptide against infection. In the future, we believe there may be great potential for research in these areas: (1) taking advantage of the plasticity of dermal adipocytes and manipulating them in wound healing; (2) investigating the precise mechanism of dWAT expansion in infected wound healing.
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Affiliation(s)
| | | | | | - Wen Yin
- *Correspondence: Ziang Zhang, ; Wen Yin,
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8
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Alemany M. The Metabolic Syndrome, a Human Disease. Int J Mol Sci 2024; 25:2251. [PMID: 38396928 PMCID: PMC10888680 DOI: 10.3390/ijms25042251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/29/2024] [Accepted: 01/31/2024] [Indexed: 02/25/2024] Open
Abstract
This review focuses on the question of metabolic syndrome (MS) being a complex, but essentially monophyletic, galaxy of associated diseases/disorders, or just a syndrome of related but rather independent pathologies. The human nature of MS (its exceptionality in Nature and its close interdependence with human action and evolution) is presented and discussed. The text also describes the close interdependence of its components, with special emphasis on the description of their interrelations (including their syndromic development and recruitment), as well as their consequences upon energy handling and partition. The main theories on MS's origin and development are presented in relation to hepatic steatosis, type 2 diabetes, and obesity, but encompass most of the MS components described so far. The differential effects of sex and its biological consequences are considered under the light of human social needs and evolution, which are also directly related to MS epidemiology, severity, and relations with senescence. The triggering and maintenance factors of MS are discussed, with especial emphasis on inflammation, a complex process affecting different levels of organization and which is a critical element for MS development. Inflammation is also related to the operation of connective tissue (including the adipose organ) and the widely studied and acknowledged influence of diet. The role of diet composition, including the transcendence of the anaplerotic maintenance of the Krebs cycle from dietary amino acid supply (and its timing), is developed in the context of testosterone and β-estradiol control of the insulin-glycaemia hepatic core system of carbohydrate-triacylglycerol energy handling. The high probability of MS acting as a unique complex biological control system (essentially monophyletic) is presented, together with additional perspectives/considerations on the treatment of this 'very' human disease.
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Affiliation(s)
- Marià Alemany
- Faculty of Biology, Universitat de Barcelona, 08028 Barcelona, Catalonia, Spain
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9
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Abbasi K, Zarezadeh R, Valizadeh A, Mehdizadeh A, Hamishehkar H, Nouri M, Darabi M. White-brown adipose tissue interplay in polycystic ovary syndrome: Therapeutic avenues. Biochem Pharmacol 2024; 220:116012. [PMID: 38159686 DOI: 10.1016/j.bcp.2023.116012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 12/22/2023] [Indexed: 01/03/2024]
Abstract
This study highlights the therapeutic potential of activating brown adipose tissue (BAT) for managing polycystic ovary syndrome (PCOS), a prevalent endocrine disorder associated with metabolic and reproductive abnormalities. BAT plays a crucial role in regulating energy expenditure and systemic insulin sensitivity, making it an attractive target for the treatment of obesity and metabolic diseases. Recent research suggests that impaired BAT function and mass may contribute to the link between metabolic disturbances and reproductive issues in PCOS. Additionally, abnormal white adipose tissue (WAT) can exacerbate these conditions by releasing adipokines and nonesterified fatty acids. In this review, we explored the impact of WAT changes on BAT function in PCOS and discussed the potential of BAT activation as a therapeutic strategy to improve PCOS symptoms. We propose that BAT activation holds promise for managing PCOS; however, further research is needed to confirm its efficacy and to develop clinically feasible methods for BAT activation.
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Affiliation(s)
- Khadijeh Abbasi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Zarezadeh
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Valizadeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Mehdizadeh
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Nouri
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Masoud Darabi
- Department of Biochemistry and Clinical Laboratories, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Division of Experimental Oncology, Department of Hematology and Oncology, University Medical Center Schleswig-Holstein, Campus Lübeck, Germany.
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10
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Cantini G, Quartararo G, Ghezzi N, Gonçalves DA, Fei L, Propato AP, Galtarossa L, Lucchese M, Maggi M, Luconi M. Visceral adipose tissue adiponectin predicts excess weight loss after bariatric surgery in females with severe obesity. Int J Obes (Lond) 2024; 48:247-253. [PMID: 37923928 DOI: 10.1038/s41366-023-01406-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/14/2023] [Accepted: 10/20/2023] [Indexed: 11/06/2023]
Abstract
OBJECTIVE Bariatric surgery not always results in satisfactory excess weight loss (EWL) in severe obesity. Given the economic and clinical costs of bariatric surgery failure, defining predictors of successful EWL represents a relevant clinical issue for the health system to select patients benefiting from operation. METHODS By ELISA and Western blot analyses, we assessed the predicting value of pre-operative adiponectin (APN) locally produced in abdominal visceral (VAT) and subcutaneous (SAT) adipose tissue versus plasma levels as a novel sex-linked biomarker of EWL at different time points of follow up (6-24 months) after bariatric surgery in 43 patients (56% females) affected by severe obesity undergoing a small pilot observational study. RESULTS VAT-APN was lower in females and represented the only marker significantly correlated with EWL. In females, VAT-APN in the distribution upper quartile but not baseline BMI retained a statistically significant correlation with EWL at any time points (6-24 months) at multivariate analysis. The best VAT-APN cut-off value to predict 95% EWL at 12 months from surgery (98% accuracy, 100% sensitivity, 94% specificity, p = 0.010) was 5.1 µg/mg. CONCLUSIONS In this very preliminary study, APN in VAT rather than its circulating or subcutaneous levels predicts EWL after bariatric surgery as an independent factor in the female sex only, thus contributing to identify those patients who could much benefit from surgery.
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Affiliation(s)
- Giulia Cantini
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Endocrinology Unit, University of Florence, 50139, Florence, Italy
| | - Giovanni Quartararo
- Department of Surgery, General and Bariatric Surgery Unit, Santa Maria Nuova Hospital, Piazza Santa Maria Nuova, 50122, Florence, Italy
| | - Niccolò Ghezzi
- Department of Surgery, General and Bariatric Surgery Unit, Santa Maria Nuova Hospital, Piazza Santa Maria Nuova, 50122, Florence, Italy
| | - Diego Assis Gonçalves
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Endocrinology Unit, University of Florence, 50139, Florence, Italy
- Department of Parasitology, Microbiology and Immunology, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Laura Fei
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Endocrinology Unit, University of Florence, 50139, Florence, Italy
| | - Arianna Pia Propato
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Endocrinology Unit, University of Florence, 50139, Florence, Italy
| | - Luca Galtarossa
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Endocrinology Unit, University of Florence, 50139, Florence, Italy
| | - Marcello Lucchese
- Department of Surgery, General and Bariatric Surgery Unit, Santa Maria Nuova Hospital, Piazza Santa Maria Nuova, 50122, Florence, Italy
| | - Mario Maggi
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Endocrinology Unit, University of Florence, 50139, Florence, Italy
| | - Michaela Luconi
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Endocrinology Unit, University of Florence, 50139, Florence, Italy.
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11
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Wang Y, Zhang X, Li Y, Gui J, Mei Y, Yang X, Liu H, Guo LL, Li J, Lei Y, Li X, Sun L, Yang L, Yuan T, Wang C, Zhang D, Li J, Liu M, Hua Y, Zhang L. Obesity- and lipid-related indices as a predictor of type 2 diabetes in a national cohort study. Front Endocrinol (Lausanne) 2024; 14:1331739. [PMID: 38356678 PMCID: PMC10864443 DOI: 10.3389/fendo.2023.1331739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 12/26/2023] [Indexed: 02/16/2024] Open
Abstract
Objective Type 2 diabetes mellitus (T2DM) remains a major and widespread public health concern throughout the world. The prevalence of T2DM in the elderly has risen to the top of the list of public health concerns. In this study, obesity- and lipid-related indices were used to predict T2DM in middle-aged and elderly Chinese adults. Methods The data came from the China Health and Retirement Longitudinal Study (CHARLS), including 7902 middle-aged and elderly participants aged 45 years or above. The study assessed the association of obesity- and lipid-related indices and T2DM by measuring 13 indicators, including body mass index (BMI), waist circumference(WC), waist-height ratio (WHtR), conicity index(CI), visceral adiposity index (VAI), Chinese visceral adiposity index (CVAI), lipid accumulation product (LAP), a body shape index (ABSI), body roundness index (BRI), triglyceride glucose index (TyG-index) and its correlation index (TyG-BMI, TyG-WC, TyG-WHtR). The association of 13 obesity- and lipid-related indices with T2DM was investigated by binary logistic regression. Additionally, the predictive anthropometric index was evaluated, and the ideal cut-off value was established using the receiver operating characteristic (ROC) curve analysis and area under the curve (AUC). Results The study included 7902 participants, of whom 3638(46.04) and 4264(53.96) were male and female. The prevalence of T2DM in mid-aged and old adults in China was 9.02% in males and 9.15% in females. All the above 13 indicators show a modest predictive power (AUC>0.5), which was significant for predicting T2DM in adults (middle-aged and elderly people) in China (P<0.05). The results revealed that TyG-WHtR [AUC =0.600, 95%CI: 0.566-0.634] in males and in females [AUC =0.664, 95%CI: 0.636-0.691] was the best predictor of T2DM (P<0.05). Conclusion Most obesity- and lipid-related indices have important value in predicting T2DM. Our results can provide measures for the early identification of T2DM in mid-aged and elderly Chinese to reduce the prevalence of T2DM and improve health.
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Affiliation(s)
- Ying Wang
- Department of Graduate School, Wannan Medical College, Wuhu, An Hui, China
| | - Xiaoyun Zhang
- Department of Graduate School, Wannan Medical College, Wuhu, An Hui, China
| | - Yuqing Li
- Department of Graduate School, Wannan Medical College, Wuhu, An Hui, China
| | - Jiaofeng Gui
- Department of Graduate School, Wannan Medical College, Wuhu, An Hui, China
| | - Yujin Mei
- Department of Graduate School, Wannan Medical College, Wuhu, An Hui, China
| | - Xue Yang
- Department of Graduate School, Wannan Medical College, Wuhu, An Hui, China
| | - Haiyang Liu
- Student Health Center, Wannan Medical College, Wuhu, An Hui, China
| | - Lei-lei Guo
- Department of Surgical Nursing, School of Nursing, Jinzhou Medical University, Linghe District, Jinzhou, Liaoning, China
| | - Jinlong Li
- Department of Occupational and Environmental Health, Key Laboratory of Occupational Health and Safety for Coal Industry in Hebei Province, School of Public Health, North China University of Science and Technology, Tangshan, Hebei, China
| | - Yunxiao Lei
- Obstetrics and Gynecology Nursing, School of Nursing, Wannan Medical College, Wuhu, An Hui, China
| | - Xiaoping Li
- Department of Emergency and Critical Care Nursing, School of Nursing, Wannan Medical College, Wuhu, An Hui, China
| | - Lu Sun
- Department of Emergency and Critical Care Nursing, School of Nursing, Wannan Medical College, Wuhu, An Hui, China
| | - Liu Yang
- Department of Internal Medicine Nursing, School of Nursing, Wannan Medical College, Wuhu, An Hui, China
| | - Ting Yuan
- Obstetrics and Gynecology Nursing, School of Nursing, Wannan Medical College, Wuhu, An Hui, China
| | - Congzhi Wang
- Department of Internal Medicine Nursing, School of Nursing, Wannan Medical College, Wuhu, An Hui, China
| | - Dongmei Zhang
- Department of Pediatric Nursing, School of Nursing, Wannan Medical College, Wuhu, An Hui, China
| | - Jing Li
- Department of Surgical Nursing, School of Nursing, Wannan Medical College, 22 Wenchang West Road, Higher Education Park, Wuhu, An Hui, China
| | - Mingming Liu
- Department of Surgical Nursing, School of Nursing, Wannan Medical College, 22 Wenchang West Road, Higher Education Park, Wuhu, An Hui, China
| | - Ying Hua
- Rehabilitation Nursing, School of Nursing, Wanna Medical College, 22 Wenchang West Road, Higher Education Park, Wuhu, An Hui, China
| | - Lin Zhang
- Department of Internal Medicine Nursing, School of Nursing, Wannan Medical College, Wuhu, An Hui, China
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12
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Kanbayti IH, Al-Buqami AS, Alsheikh MH, Al-Malki SM, Hadadi I, Alahmadi A, Almutairi BS, Ahmed HH. Lumbar Disc Degeneration Is Linked to Dorsal Subcutaneous Fat Thickness at the L1-L2 Intervertebral Disc Level Measured by MRI. Tomography 2024; 10:159-168. [PMID: 38250958 PMCID: PMC10820047 DOI: 10.3390/tomography10010012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/09/2024] [Accepted: 01/13/2024] [Indexed: 01/23/2024] Open
Abstract
BACKGROUND Obese individuals have a higher risk of degenerative disc disease (DDD). Currently, body mass index is not sensitive enough to differentiate between muscle and fat distribution, and obesity-related health issues are linked to the way body fat is distributed. Therefore, this study aims to investigate the association between the dorsal subcutaneous fat thickness (DSFT) of the lumbar spine, an alternative measurement tool of body fat distribution, and DDD. METHODS A total of 301 patients with DDD and 123 participants without the disease were recruited. Using length functions of magnetic resonance imaging (MRI) console, the DSFT of L1 to S1 intervertebral disc levels was measured in mid-sagittal spin-echo T2 weighted image. The Mann-Whitney U test and Chi-squared test (X2) were utilized to examine any variations between the case and control groups. Logistic regression models were built to explore the association of the DSFT with DDD. RESULTS The logistical regression model showed a positive association between DDD and DSFT [OR: 1.30, 95% CI: 1.02-1.64, p = 0.03]. In the stratified logistic regression analysis, a positive association was found between DDD and DSFT among younger participants and females [OR young: 1.48; 95% CI (1.02-2.20); p = 0.04-OR female: 1.37; 95% CI (1-1.88); p = 0.05]. CONCLUSIONS Younger females with thicker DSFT at the L1-L2 level are more likely to develop DDD. This suggests that increased DSFT may be a contributing factor to DDD.
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Affiliation(s)
- Ibrahem Hussain Kanbayti
- Radiologic Sciences Department, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia; (A.S.A.-B.); (S.M.A.-M.); (A.A.); (H.H.A.)
| | - Abdulrahman S. Al-Buqami
- Radiologic Sciences Department, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia; (A.S.A.-B.); (S.M.A.-M.); (A.A.); (H.H.A.)
| | - Mohammad H. Alsheikh
- Radiologic Sciences Department, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia; (A.S.A.-B.); (S.M.A.-M.); (A.A.); (H.H.A.)
| | - Saad M. Al-Malki
- Radiologic Sciences Department, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia; (A.S.A.-B.); (S.M.A.-M.); (A.A.); (H.H.A.)
| | - Ibrahim Hadadi
- Department of Radiological Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia;
| | - Adnan Alahmadi
- Radiologic Sciences Department, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia; (A.S.A.-B.); (S.M.A.-M.); (A.A.); (H.H.A.)
| | - Bander S. Almutairi
- Department of Radiology, King Abdulaziz University Hospital, Jeddah, Saudi Arabia;
| | - Hamzah H. Ahmed
- Radiologic Sciences Department, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia; (A.S.A.-B.); (S.M.A.-M.); (A.A.); (H.H.A.)
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13
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Adeva-Andany MM, Domínguez-Montero A, Adeva-Contreras L, Fernández-Fernández C, Carneiro-Freire N, González-Lucán M. Body Fat Distribution Contributes to Defining the Relationship between Insulin Resistance and Obesity in Human Diseases. Curr Diabetes Rev 2024; 20:e160823219824. [PMID: 37587805 DOI: 10.2174/1573399820666230816111624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 04/28/2023] [Accepted: 05/31/2023] [Indexed: 08/18/2023]
Abstract
The risk for metabolic and cardiovascular complications of obesity is defined by body fat distribution rather than global adiposity. Unlike subcutaneous fat, visceral fat (including hepatic steatosis) reflects insulin resistance and predicts type 2 diabetes and cardiovascular disease. In humans, available evidence indicates that the ability to store triglycerides in the subcutaneous adipose tissue reflects enhanced insulin sensitivity. Prospective studies document an association between larger subcutaneous fat mass at baseline and reduced incidence of impaired glucose tolerance. Case-control studies reveal an association between genetic predisposition to insulin resistance and a lower amount of subcutaneous adipose tissue. Human peroxisome proliferator-activated receptorgamma (PPAR-γ) promotes subcutaneous adipocyte differentiation and subcutaneous fat deposition, improving insulin resistance and reducing visceral fat. Thiazolidinediones reproduce the effects of PPAR-γ activation and therefore increase the amount of subcutaneous fat while enhancing insulin sensitivity and reducing visceral fat. Partial or virtually complete lack of adipose tissue (lipodystrophy) is associated with insulin resistance and its clinical manifestations, including essential hypertension, hypertriglyceridemia, reduced HDL-c, type 2 diabetes, cardiovascular disease, and kidney disease. Patients with Prader Willi syndrome manifest severe subcutaneous obesity without insulin resistance. The impaired ability to accumulate fat in the subcutaneous adipose tissue may be due to deficient triglyceride synthesis, inadequate formation of lipid droplets, or defective adipocyte differentiation. Lean and obese humans develop insulin resistance when the capacity to store fat in the subcutaneous adipose tissue is exhausted and deposition of triglycerides is no longer attainable at that location. Existing adipocytes become large and reflect the presence of insulin resistance.
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Affiliation(s)
- María M Adeva-Andany
- Nephrology Division, Department of Internal Medicine, Hospital General Juan Cardona, c/ Pardo Bazán s/n, 15406 Ferrol, Spain
| | - Alberto Domínguez-Montero
- Nephrology Division, Department of Internal Medicine, Hospital General Juan Cardona, c/ Pardo Bazán s/n, 15406 Ferrol, Spain
| | | | - Carlos Fernández-Fernández
- Nephrology Division, Department of Internal Medicine, Hospital General Juan Cardona, c/ Pardo Bazán s/n, 15406 Ferrol, Spain
| | - Natalia Carneiro-Freire
- Nephrology Division, Department of Internal Medicine, Hospital General Juan Cardona, c/ Pardo Bazán s/n, 15406 Ferrol, Spain
| | - Manuel González-Lucán
- Nephrology Division, Department of Internal Medicine, Hospital General Juan Cardona, c/ Pardo Bazán s/n, 15406 Ferrol, Spain
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14
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Boutari C, Kokkorakis M, Stefanakis K, Valenzuela-Vallejo L, Axarloglou E, Volčanšek Š, Chakhtoura M, Mantzoros CS. Recent research advances in metabolism, clinical and experimental. Metabolism 2023; 149:155722. [PMID: 37931873 DOI: 10.1016/j.metabol.2023.155722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Affiliation(s)
- Chrysoula Boutari
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, United States of America
| | - Michail Kokkorakis
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, United States of America
| | - Konstantinos Stefanakis
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, United States of America
| | - Laura Valenzuela-Vallejo
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, United States of America
| | - Evangelos Axarloglou
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, United States of America
| | - Špela Volčanšek
- Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Center Ljubljana, Zaloska 7, 1000 Ljubljana, Slovenia; Medical Faculty Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia
| | - Marlene Chakhtoura
- Department of Internal Medicine, Division of Endocrinology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Christos S Mantzoros
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, United States of America; Department of Medicine, Boston VA Healthcare System, Boston, MA 02130, United States of America.
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Umbayev B, Saliev T, Safarova (Yantsen) Y, Yermekova A, Olzhayev F, Bulanin D, Tsoy A, Askarova S. The Role of Cdc42 in the Insulin and Leptin Pathways Contributing to the Development of Age-Related Obesity. Nutrients 2023; 15:4964. [PMID: 38068822 PMCID: PMC10707920 DOI: 10.3390/nu15234964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/22/2023] [Accepted: 11/26/2023] [Indexed: 12/18/2023] Open
Abstract
Age-related obesity significantly increases the risk of chronic diseases such as type 2 diabetes, cardiovascular diseases, hypertension, and certain cancers. The insulin-leptin axis is crucial in understanding metabolic disturbances associated with age-related obesity. Rho GTPase Cdc42 is a member of the Rho family of GTPases that participates in many cellular processes including, but not limited to, regulation of actin cytoskeleton, vesicle trafficking, cell polarity, morphology, proliferation, motility, and migration. Cdc42 functions as an integral part of regulating insulin secretion and aging. Some novel roles for Cdc42 have also been recently identified in maintaining glucose metabolism, where Cdc42 is involved in controlling blood glucose levels in metabolically active tissues, including skeletal muscle, adipose tissue, pancreas, etc., which puts this protein in line with other critical regulators of glucose metabolism. Importantly, Cdc42 plays a vital role in cellular processes associated with the insulin and leptin signaling pathways, which are integral elements involved in obesity development if misregulated. Additionally, a change in Cdc42 activity may affect senescence, thus contributing to disorders associated with aging. This review explores the complex relationships among age-associated obesity, the insulin-leptin axis, and the Cdc42 signaling pathway. This article sheds light on the vast molecular web that supports metabolic dysregulation in aging people. In addition, it also discusses the potential therapeutic implications of the Cdc42 pathway to mitigate obesity since some new data suggest that inhibition of Cdc42 using antidiabetic drugs or antioxidants may promote weight loss in overweight or obese patients.
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Affiliation(s)
- Bauyrzhan Umbayev
- National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan; (Y.S.); (A.Y.); (F.O.); (A.T.); (S.A.)
| | - Timur Saliev
- S.D. Asfendiyarov Kazakh National Medical University, Almaty 050012, Kazakhstan;
| | - Yuliya Safarova (Yantsen)
- National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan; (Y.S.); (A.Y.); (F.O.); (A.T.); (S.A.)
| | - Aislu Yermekova
- National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan; (Y.S.); (A.Y.); (F.O.); (A.T.); (S.A.)
| | - Farkhad Olzhayev
- National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan; (Y.S.); (A.Y.); (F.O.); (A.T.); (S.A.)
| | - Denis Bulanin
- Department of Biomedical Sciences, School of Medicine, Nazarbayev University, Astana 010000, Kazakhstan;
| | - Andrey Tsoy
- National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan; (Y.S.); (A.Y.); (F.O.); (A.T.); (S.A.)
| | - Sholpan Askarova
- National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan; (Y.S.); (A.Y.); (F.O.); (A.T.); (S.A.)
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16
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Kim MJ, Cho YK, Jung HN, Kim EH, Lee MJ, Jung CH, Park JY, Kim HK, Lee WJ. Association Between Insulin Resistance and Myosteatosis Measured by Abdominal Computed Tomography. J Clin Endocrinol Metab 2023; 108:3100-3110. [PMID: 37401630 DOI: 10.1210/clinem/dgad382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 06/15/2023] [Accepted: 06/26/2023] [Indexed: 07/05/2023]
Abstract
CONTEXT Ectopic fat deposition in skeletal muscle, termed myosteatosis, is a key factor in developing insulin resistance. OBJECTIVE This work aimed to evaluate the association between insulin resistance and myosteatosis in a large Asian population. METHODS A total of 18 251 participants who had abdominal computed tomography were included in this cross-sectional study. Patients were categorized into 4 groups according to quartiles of Homeostatic Model Assessment for Insulin Resistance (HOMA-IR). The total abdominal muscle area (TAMA) at the L3 vertebral level was segmented into normal-attenuation muscle area (NAMA), low-attenuation muscle area (LAMA), and intermuscular adipose tissue (IMAT). The absolute values of TAMA, NAMA, LAMA, and IMAT and the ratios of NAMA/BMI, LAMA/BMI, and NAMA/TAMA were used as myosteatosis indices. RESULTS The absolute values of TAMA, NAMA, LAMA, and IMAT appeared to increase with higher HOMA-IR levels, and LAMA/BMI showed a similar upward trend. Meanwhile, the NAMA/BMI and NAMA/TAMA index showed downward trends. As HOMA-IR levels increased, the odds ratios (ORs) of the highest quartile of NAMA/BMI and NAMA/TAMA index decreased and that of LAMA/BMI increased. Compared with the lowest HOMA-IR group, the adjusted ORs (95% CI) in the highest HOMA-IR group for the lowest NAMA/TAMA quartile were 0.414 (0.364-0.471) in men and 0.464 (0.384-0.562) in women. HOMA-IR showed a negative correlation with NAMA/BMI (r = -0.233 for men and r = -0.265 for women), and NAMA/TAMA index (r = -0.211 for men and r = -0.214 for women), and a positive correlation with LAMA/BMI (r = 0.160 for men and r = 0.119 for women); P was less than .001 for all. CONCLUSION In this study, a higher HOMA-IR level was significantly associated with a high risk of myosteatosis.
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Affiliation(s)
- Myung Jin Kim
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
- Asan Diabetes Center, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Yun Kyung Cho
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
- Asan Diabetes Center, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Han Na Jung
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
- Asan Diabetes Center, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Eun Hee Kim
- Health Screening and Promotion Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Min Jung Lee
- Health Screening and Promotion Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Chang Hee Jung
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
- Asan Diabetes Center, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Joong-Yeol Park
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
- Asan Diabetes Center, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Hong-Kyu Kim
- Health Screening and Promotion Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Woo Je Lee
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
- Asan Diabetes Center, Asan Medical Center, Seoul 05505, Republic of Korea
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17
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Vick LV, Canter RJ, Monjazeb AM, Murphy WJ. Multifaceted effects of obesity on cancer immunotherapies: Bridging preclinical models and clinical data. Semin Cancer Biol 2023; 95:88-102. [PMID: 37499846 PMCID: PMC10836337 DOI: 10.1016/j.semcancer.2023.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/04/2023] [Accepted: 07/24/2023] [Indexed: 07/29/2023]
Abstract
Obesity, defined by excessive body fat, is a highly complex condition affecting numerous physiological processes, such as metabolism, proliferation, and cellular homeostasis. These multifaceted effects impact cells and tissues throughout the host, including immune cells as well as cancer biology. Because of the multifaceted nature of obesity, common parameters used to define it (such as body mass index in humans) can be problematic, and more nuanced methods are needed to characterize the pleiotropic metabolic effects of obesity. Obesity is well-accepted as an overall negative prognostic factor for cancer incidence, progression, and outcome. This is in part due to the meta-inflammatory and immunosuppressive effects of obesity. Immunotherapy is increasingly used in cancer therapy, and there are many different types of immunotherapy approaches. The effects of obesity on immunotherapy have only recently been studied with the demonstration of an "obesity paradox", in which some immune therapies have been demonstrated to result in greater efficacy in obese subjects despite the direct adverse effects of obesity and excess body fat acting on the cancer itself. The multifactorial characteristics that influence the effects of obesity (age, sex, lean muscle mass, underlying metabolic conditions and drugs) further confound interpretation of clinical data and necessitate the use of more relevant preclinical models mirroring these variables in the human scenario. Such models will allow for more nuanced mechanistic assessment of how obesity can impact, both positively and negatively, cancer biology, host metabolism, immune regulation, and how these intersecting processes impact the delivery and outcome of cancer immunotherapy.
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Affiliation(s)
- Logan V Vick
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA, USA
| | - Robert J Canter
- Department of Surgery, Division of Surgical Oncology, University of California Davis Comprehensive Cancer Center, University of California Davis School of Medicine, Sacramento, CA, USA
| | - Arta M Monjazeb
- Department of Radiation Oncology, University of California Davis Comprehensive Cancer Center, University of California School of Medicine, Sacramento, CA, USA
| | - William J Murphy
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA, USA; Department of Internal Medicine, Division of Malignant Hematology, Cellular Therapy and Transplantation, University of California Davis School of Medicine, Sacramento, CA, USA.
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Lee JH, Heo S, Kwon Y. Sex-Specific Comparison Between Triglyceride Glucose Index and Modified Triglyceride Glucose Indices to Predict New-Onset Hypertension in Middle-Aged and Older Adults. J Am Heart Assoc 2023; 12:e030022. [PMID: 37721166 PMCID: PMC10547265 DOI: 10.1161/jaha.123.030022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 08/18/2023] [Indexed: 09/19/2023]
Abstract
Background Triglyceride and glucose (TyG) index and TyG-related indices combined with obesity-related markers are considered important markers of insulin resistance. We aimed to examine the association between the TyG index and modified TyG indices with new-onset hypertension and their predictive ability stratified by sex. Methods and Results We analyzed data from 5414 Korean Genome and Epidemiology Study participants aged 40 to 69 years. Multiple Cox proportional hazard regression analyses were conducted to estimate the hazard ratio (HR) and 95% CI for new-onset hypertension according to sex-specific tertile groups after confounder adjustments. To evaluate the predictive performance of these indices for new-onset hypertension, we calculated Harrell's C-index (95% CI). Over a 9.5-year follow-up period, 1014 men and 1012 women developed new-onset hypertension. Compared with the lowest tertile (T) group, the adjusted HR and 95% CI for new-onset hypertension in T3 for TyG, TyG-body mass index, TyG-waist circumference, and TyG-waist-to-height ratio were 1.16 (0.95-1.40), 1.11 (0.84-1.48), 1.77 (1.38-2.27), and 1.68 (1.33-2.13) in men and 1.37 (1.13-1.66), 1.55 (1.16-2.06), 1.43 (1.15-1.79), and 1.64 (1.30-2.07) in women, respectively. The C-indices of TyG-waist-to-height ratio for new-onset hypertension were significantly higher than those of TyG and TyG-body mass index in both men and women. Conclusions TyG and TyG-body mass index were significantly associated with new-onset hypertension only in women. TyG-waist circumference and TyG-waist-to-height ratio were significantly associated with new-onset hypertension in both men and women. A sex-specific approach is required when using TyG and modified TyG indices to identify individuals at risk of incident hypertension.
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Affiliation(s)
- Joo Hyung Lee
- Department of Family Medicine, Yongin Severance HospitalYonsei University College of MedicineYonginRepublic of Korea
| | - Seok‐Jae Heo
- Division of Biostatistics, Department of Biomedical Systems InformaticsYonsei University College of MedicineSeoulRepublic of Korea
| | - Yu‐Jin Kwon
- Department of Family Medicine, Yongin Severance HospitalYonsei University College of MedicineYonginRepublic of Korea
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19
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Ahmad N, Strand R, Sparresäter B, Tarai S, Lundström E, Bergström G, Ahlström H, Kullberg J. Automatic segmentation of large-scale CT image datasets for detailed body composition analysis. BMC Bioinformatics 2023; 24:346. [PMID: 37723444 PMCID: PMC10506248 DOI: 10.1186/s12859-023-05462-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 09/01/2023] [Indexed: 09/20/2023] Open
Abstract
BACKGROUND Body composition (BC) is an important factor in determining the risk of type 2-diabetes and cardiovascular disease. Computed tomography (CT) is a useful imaging technique for studying BC, however manual segmentation of CT images is time-consuming and subjective. The purpose of this study is to develop and evaluate fully automated segmentation techniques applicable to a 3-slice CT imaging protocol, consisting of single slices at the level of the liver, abdomen, and thigh, allowing detailed analysis of numerous tissues and organs. METHODS The study used more than 4000 CT subjects acquired from the large-scale SCAPIS and IGT cohort to train and evaluate four convolutional neural network based architectures: ResUNET, UNET++, Ghost-UNET, and the proposed Ghost-UNET++. The segmentation techniques were developed and evaluated for automated segmentation of the liver, spleen, skeletal muscle, bone marrow, cortical bone, and various adipose tissue depots, including visceral (VAT), intraperitoneal (IPAT), retroperitoneal (RPAT), subcutaneous (SAT), deep (DSAT), and superficial SAT (SSAT), as well as intermuscular adipose tissue (IMAT). The models were trained and validated for each target using tenfold cross-validation and test sets. RESULTS The Dice scores on cross validation in SCAPIS were: ResUNET 0.964 (0.909-0.996), UNET++ 0.981 (0.927-0.996), Ghost-UNET 0.961 (0.904-0.991), and Ghost-UNET++ 0.968 (0.910-0.994). All four models showed relatively strong results, however UNET++ had the best performance overall. Ghost-UNET++ performed competitively compared to UNET++ and showed a more computationally efficient approach. CONCLUSION Fully automated segmentation techniques can be successfully applied to a 3-slice CT imaging protocol to analyze multiple tissues and organs related to BC. The overall best performance was achieved by UNET++, against which Ghost-UNET++ showed competitive results based on a more computationally efficient approach. The use of fully automated segmentation methods can reduce analysis time and provide objective results in large-scale studies of BC.
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Affiliation(s)
- Nouman Ahmad
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden.
| | - Robin Strand
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
- Department of Information Technology, Uppsala University, Uppsala, Sweden
| | - Björn Sparresäter
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
| | - Sambit Tarai
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
| | - Elin Lundström
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
| | - Göran Bergström
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Physiology, Sahlgrenska University Hospital, Region Västra Götaland, Gothenburg, Sweden
| | - Håkan Ahlström
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
- Antaros Medical, Mölndal, Sweden
| | - Joel Kullberg
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
- Antaros Medical, Mölndal, Sweden
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20
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Fozzato A, New LE, Griffiths JC, Patel B, Deuchars SA, Filippi BM. Manipulating mitochondrial dynamics in the NTS prevents diet-induced deficits in brown fat morphology and glucose uptake. Life Sci 2023; 328:121922. [PMID: 37423379 DOI: 10.1016/j.lfs.2023.121922] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 07/06/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
AIMS Brown adipose tissue (BAT) can produce heat by metabolizing glucose and fatty acids. Activation of BAT is controlled by the central nervous system (CNS) through sympathetic innervation. Dysregulation of signalling molecules in selective CNS areas such as the nucleus of tractus solitarius (NTS) are linked with altered BAT activity, obesity and diabetes. High-fat diet (HFD)-feeding increases mitochondrial fragmentation in the NTS, triggering insulin resistance, hyperphagia and weight gain. Here we sought to determine whether changes in mitochondrial dynamics in the NTS can affect BAT glucose uptake. MAIN METHODS Rats received DVC stereotactic surgery for local brain administration of viruses that express mutated Drp1 genes. BAT glucose uptake was measured with PET/CT scans. Biochemical assays and immunohistochemistry determined altered levels of key signalling molecules and neural innervation of BAT. KEY FINDINGS We show that short-term HFD-feeding decreases BAT glucose uptake. However, inhibiting mitochondrial fragmentation in NTS-astrocytes of HFD-fed rats partially restores BAT glucose uptake accompanied by lower blood glucose and insulin levels. Tyrosine Hydroxylase (TH) revealed that rats with inhibited mitochondrial fragmentation in NTS astrocytes had higher levels of catecholaminergic innervation in BAT compared to HFD-fed rats, and did not exhibit HFD-dependent infiltration of enlarged white fat droplets in the BAT. In regular chow-fed rats, increasing mitochondrial fragmentation in the NTS-astrocytes reduced BAT glucose uptake, TH immune-positive boutons and β3-adrenergic receptor levels. SIGNIFICANCE Our data suggest that targeting mitochondrial dynamics in the NTS-astrocytes could be a beneficial strategy to increase glucose utilization and protect from developing obesity and diabetes.
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Affiliation(s)
- Arianna Fozzato
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Lauryn E New
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Joanne C Griffiths
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Bianca Patel
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Susan A Deuchars
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Beatrice M Filippi
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK.
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21
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Chen DZ, Ganapathy A, Nayak Y, Mejias C, Bishop GL, Mellnick VM, Ballard DH. Analysis of Superficial Subcutaneous Fat Camper's and Scarpa's Fascia in a United States Cohort. J Cardiovasc Dev Dis 2023; 10:347. [PMID: 37623360 PMCID: PMC10455117 DOI: 10.3390/jcdd10080347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/03/2023] [Accepted: 08/07/2023] [Indexed: 08/26/2023] Open
Abstract
Together, the Camper's and Scarpa's fasciae form the superficial fat layer of the abdominal wall. Though they have clinical and surgical relevance, little is known about their role in body composition across diverse patient populations. This study aimed to determine the relationship between patient characteristics, including sex and body mass index, and the distribution of Camper's and Scarpa's fascial layers in the abdominal wall. A total of 458 patients' abdominal CT examinations were segmented via CoreSlicer 1.0 to determine the surface area of each patient's Camper's, Scarpa's, and visceral fascia layers. The reproducibility of segmentation was corroborated by an inter-rater analysis of segmented data for 20 randomly chosen patients divided between three study investigators. Pearson correlation and Student's t-test analyses were performed to characterize the relationship between fascia distribution and demographic factors. The ratios of Camper's fascia, both as a proportion of superficial fat (r = -0.44 and p < 0.0001) and as a proportion of total body fat (r = -0.34 and p < 0.0001), showed statistically significant negative correlations with BMI. In contrast, the ratios of Scarpa's fascia, both as a proportion of superficial fat (r = 0.44 and p < 0.0001) and as a proportion of total body fat (r = 0.41 and p < 0.0001), exhibited statistically significant positive correlations with BMI. Between sexes, the females had a higher ratio of Scarpa's facia to total body fat compared to the males (36.9% vs. 31% and p < 0.0001). The ICC values for the visceral fat, Scarpa fascia, and Camper fascia were 0.995, 0.991, and 0.995, respectively, which were all within the 'almost perfect' range (ICC = 0.81-1.00). These findings contribute novel insights by revealing that as BMI increases the proportion of Camper's fascia decreases, while the ratio of Scarpa's fascia increases. Such insights expand the scope of body composition studies, which typically focus solely on superficial and visceral fat ratios.
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Affiliation(s)
- David Z. Chen
- School of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA; (D.Z.C.); (A.G.)
| | - Aravinda Ganapathy
- School of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA; (D.Z.C.); (A.G.)
| | - Yash Nayak
- School of Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA;
| | - Christopher Mejias
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA; (C.M.); (G.L.B.); (V.M.M.)
| | - Grace L. Bishop
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA; (C.M.); (G.L.B.); (V.M.M.)
| | - Vincent M. Mellnick
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA; (C.M.); (G.L.B.); (V.M.M.)
| | - David H. Ballard
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA; (C.M.); (G.L.B.); (V.M.M.)
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22
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Colangeli L, Escobar Marcillo DI, Simonelli V, Iorio E, Rinaldi T, Sbraccia P, Fortini P, Guglielmi V. The Crosstalk between Gut Microbiota and White Adipose Tissue Mitochondria in Obesity. Nutrients 2023; 15:nu15071723. [PMID: 37049562 PMCID: PMC10097238 DOI: 10.3390/nu15071723] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/19/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023] Open
Abstract
Adipose tissue (AT) dysregulation is a key process in the pathophysiology of obesity and its cardiometabolic complications, but even if a growing body of evidence has been collected over recent decades, the underlying molecular basis of adiposopathy remains to be fully understood. In this context, mitochondria, the intracellular organelles that orchestrate energy production and undergo highly dynamic adaptive changes in response to changing environments, have emerged as crucial regulators of both white (WAT) and brown adipose tissue (BAT) metabolism and function. Given that the gut microbiota and its metabolites are able to regulate host metabolism, adipogenesis, WAT inflammation, and thermogenesis, we hypothesize that their frequently observed dysregulation in obesity could affect AT metabolism by exerting direct and indirect effects on AT mitochondria. By collecting and revising the current evidence on the connections between gut microbiota and AT mitochondria in obesity, we gained insights into the molecular biology of their hitherto largely unexplored crosstalk, tracing how gut microbiota may regulate AT mitochondrial function.
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23
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Godinho-Mota JCM, Vaz-Gonçalves L, Dias Custódio ID, Schroeder de Souza J, Mota JF, Gonzalez MC, Rodrigues Vilella P, Anusca Martins K, Paiva Maia YCD, Verde SMML, Frenzel AP, Di Pietro PF, Costa Marinho ED, Freitas-Junior R. Impact of Chemotherapy Regimens on Body Composition of Breast Cancer Women: A Multicenter Study across Four Brazilian Regions. Nutrients 2023; 15:nu15071689. [PMID: 37049529 PMCID: PMC10097367 DOI: 10.3390/nu15071689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/15/2023] [Accepted: 03/20/2023] [Indexed: 04/03/2023] Open
Abstract
This study aimed to investigate the effect of chemotherapy (CT) and its different types of regimens on the anthropometry and body composition of women with breast cancer. Three-hundred-and-four women with breast cancer were enrolled in this multicenter study. The participants were evaluated before the infusion of the first cycle of CT (pre-CT), and until two weeks after CT completion (post-CT), regarding body weight, body mass index (BMI); waist circumference (WC); waist-to-height ratio (WHtR); conicity index (C-index); fat mass index (FMI); and fat-free mass index (FFMI). CT regimens were classified as anthracycline-based (AC—doxorubicin or epirubicin); anthracyclines and taxane (ACT); cyclophosphamide, methotrexate, and 5-fluorouracil (CMF); or isolated taxanes (paclitaxel or docetaxel). Women significantly increased BMI and FMI post-CT (p < 0.001 and p = 0.007, respectively). The ACT regimen increased FMI (p < 0.001), while FFMI increased after AC (p = 0.007). It is concluded that the CT negatively impacted body composition and the type of regime had a strong influence. The ACT regimen promoted an increase in FMI compared to other regimens, and the AC increased FFMI. These findings reinforce the importance of nutritional monitoring of breast cancer patients throughout the entire CT treatment.
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24
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Trinkner P, Günther S, Monsef I, Kerschbaum E, von Bergwelt-Baildon M, Cordas Dos Santos DM, Theurich S. Survival and immunotoxicities in association with sex-specific body composition patterns of cancer patients undergoing immune-checkpoint inhibitor therapy - A systematic review and meta-analysis. Eur J Cancer 2023; 184:151-171. [PMID: 36931074 DOI: 10.1016/j.ejca.2023.01.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/28/2023] [Accepted: 01/30/2023] [Indexed: 02/19/2023]
Abstract
BACKGROUND Imbalanced body composition is mechanistically connected to dysregulated immune activities. Whether overweight/obesity or sarcopenia has an impact on treatment results in cancer patients undergoing immune checkpoint inhibitor (ICI) therapy is currently under debate. We aimed to answer if survival rates and occurrence of immune-related adverse events (irAEs) were different in obese or sarcopenic patients. METHODS A systematic search was conducted in PubMed, Embase and CENTRAL for all records published until July 2022 using specific search terms for body composition in combination with terms for ICI regimens. Two authors screened independently. All studies that reported on body mass index or sarcopenia measures were selected for further analysis. RESULTS 48 studies reporting on overweight/obesity comprising of 19,767 patients, and 32 studies reporting on sarcopenia comprising of 3193 patients fulfilled the inclusion criteria. In the entire cohort, overweight/obesity was significantly associated with better progression-free survival (PFS; p = 0.009) and overall survival (OS; p <0.00001). Subgroup analyses stratified by sex revealed that overweight/obese males had the strongest survival benefit (PFS: p = 0.05; OS: p = 0.0005), and overweight/obese female patients did not show any. However, overweight/obese patients of both sexes had a higher risk to develop irAEs grade ≥3 (p = 0.0009). Sarcopenic patients showed significantly shorter PFS (p <0.0001) and OS (p <0.0001). The frequency of irAEs did not differ between sarcopenic and non-sarcopenic patients. CONCLUSION This meta-analysis suggests that body composition is associated in a sex-specific manner with survival and irAEs in cancer patients undergoing ICI treatment.
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Affiliation(s)
- Paul Trinkner
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany; Cancer- and Immunometabolism Research Group, Gene Center, LMU Munich, Munich, Germany
| | - Sophie Günther
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany; Cancer- and Immunometabolism Research Group, Gene Center, LMU Munich, Munich, Germany
| | - Ina Monsef
- Evidence-based Medicine, Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, Faculty of Medicine and University Hospital Cologne, University of Cologne, Germany
| | - Eva Kerschbaum
- Comprehensive Cancer Center Munich (CCCM), Munich, Germany
| | - Michael von Bergwelt-Baildon
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany; Comprehensive Cancer Center Munich (CCCM), Munich, Germany; German Cancer Consortium (DKTK), Partner Site Munich, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - David M Cordas Dos Santos
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany; Cancer- and Immunometabolism Research Group, Gene Center, LMU Munich, Munich, Germany; German Cancer Consortium (DKTK), Partner Site Munich, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Sebastian Theurich
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany; Cancer- and Immunometabolism Research Group, Gene Center, LMU Munich, Munich, Germany; German Cancer Consortium (DKTK), Partner Site Munich, and German Cancer Research Center (DKFZ), Heidelberg, Germany.
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25
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Fang R, Yan L, Liao Z. Abnormal lipid metabolism in cancer-associated cachexia and potential therapy strategy. Front Oncol 2023; 13:1123567. [PMID: 37205195 PMCID: PMC10185845 DOI: 10.3389/fonc.2023.1123567] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 04/17/2023] [Indexed: 05/21/2023] Open
Abstract
Cancer-associated cachexia (CAC) is a major characteristic of advanced cancer, associates with almost all types of cancer. Recent studies have found that lipopenia is an important feature of CAC, and it even occurs earlier than sarcopenia. Different types of adipose tissue are all important in the process of CAC. In CAC patients, the catabolism of white adipose tissue (WAT) is increased, leading to an increase in circulating free fatty acids (FFAs), resulting in " lipotoxic". At the same time, WAT also is induced by a variety of mechanisms, browning into brown adipose tissue (BAT). BAT is activated in CAC and greatly increases energy expenditure in patients. In addition, the production of lipid is reduced in CAC, and the cross-talk between adipose tissue and other systems, such as muscle tissue and immune system, also aggravates the progression of CAC. The treatment of CAC is still a vital clinical problem, and the abnormal lipid metabolism in CAC provides a new way for the treatment of CAC. In this article, we will review the mechanism of metabolic abnormalities of adipose tissue in CAC and its role in treatment.
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Affiliation(s)
- Ruoxin Fang
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Wuhan, Hubei, China
| | - Ling Yan
- Department of Cardiology, Renmin Hospital of Wuhan University, Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, Hubei, China
- *Correspondence: Zhengkai Liao, ; Ling Yan,
| | - Zhengkai Liao
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Wuhan, Hubei, China
- *Correspondence: Zhengkai Liao, ; Ling Yan,
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Abstract
In the past few decades, obesity in the pediatric population has dramatically increased and is common in many countries. Childhood obesity often causes health problems and increases the risk of cardiometabolic diseases such as type 2 diabetes, nonalcohol fatty liver, and cardiovascular diseases. Obesity in young people has been closely associated with environmental, behavioral, and genetic defects, including the availability of high-energy and sugary food and beverages, sedentary behavior, and hereditary factors. Few drugs are currently available to treat obesity in children and adolescents because it is difficult to demonstrate the safety of these drugs on the growth and development of the youth. Lifestyle modifications, such as diet control and physical exercise, are the primary approaches for preventing and treating childhood obesity. Among them, physical activity is a crucial component. This review summarizes the epidemiology, cardiometabolic risk of obesity, therapeutic strategies, and the benefits of exercise on obesity-related chronic diseases in children and adolescents.
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27
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Hoffmann J, Thiele J, Kwast S, Borger MA, Schröter T, Falz R, Busse M. Measurement of subcutaneous fat tissue: reliability and comparison of caliper and ultrasound via systematic body mapping. Sci Rep 2022; 12:15798. [PMID: 36138057 PMCID: PMC9500055 DOI: 10.1038/s41598-022-19937-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 09/06/2022] [Indexed: 11/09/2022] Open
Abstract
Caliper and ultrasound (US) are used to measure subcutaneous fat tissue depth (SFT) and then to calculate total body fat. There is no evidence-based recommendation as to whether caliper or US are equally accurate. The aim of this paper was therefore to compare reliability of both methods. In this methodical study, 54 participants (BMI: 24.8 ± 3.5 kg/m2; Age: 43.2 ± 21.7 years) were included. Using systematic body mapping, the SFT of 56 areas was measured. We also analyzed 4 body sites via MRI. A comparison between caliper and US detected clear differences in mean SFT of all areas (0.83 ± 0.33 cm vs. 1.14 ± 0.54 cm; p < 0.001) showing moderate reliability (ICC 0.669, 95%CI: 0.625–0.712). US and MRI revealed in the abdominal area a SFT twice as thick as caliper (2.43 ± 1.36 cm vs. 2.26 ± 1.32 cm vs. 1.15 ± 0.66 cm; respectively). Caliper and US revealed excellent intrarater (ICC caliper: 0.944, 95%CI: 0.926–0.963; US: 0.934, 95%CI: 0.924–0.944) and good interrater reliability (ICC caliper: 0.794, 95%CI: 0.754–0.835; US: 0.825, 95%CI: 0.794–0.857). Despite the high reliability in measuring SFT that caliper and US show, our comparison of the two methods yielded clear differences in SFT, particularly in the abdominal area. In accuracy terms, US is preferable for most mapping areas.
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Affiliation(s)
- Jana Hoffmann
- Institute of Sports Medicine and Prevention, University of Leipzig, 04103, Leipzig, Germany.
| | - Jens Thiele
- Department of Radiology, Helios Klinik, 04435, Schkeuditz, Germany
| | - Stefan Kwast
- Institute of Sports Medicine and Prevention, University of Leipzig, 04103, Leipzig, Germany
| | - Michael Andrew Borger
- University Department of Cardiac Surgery, Heart Center Leipzig, 04289, Leipzig, Germany
| | - Thomas Schröter
- University Department of Cardiac Surgery, Heart Center Leipzig, 04289, Leipzig, Germany
| | - Roberto Falz
- Institute of Sports Medicine and Prevention, University of Leipzig, 04103, Leipzig, Germany
| | - Martin Busse
- Institute of Sports Medicine and Prevention, University of Leipzig, 04103, Leipzig, Germany
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Dexamethasone-Induced Adipose Tissue Redistribution and Metabolic Changes: Is Gene Expression the Main Factor? An Animal Model of Chronic Hypercortisolism. Biomedicines 2022; 10:biomedicines10092328. [PMID: 36140428 PMCID: PMC9496558 DOI: 10.3390/biomedicines10092328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/03/2022] [Accepted: 09/06/2022] [Indexed: 11/17/2022] Open
Abstract
Chronic hypercortisolism has been associated with the development of several metabolic alterations, mostly caused by the effects of chronic glucocorticoid (GC) exposure over gene expression. The metabolic changes can be partially explained by the GC actions on different adipose tissues (ATs), leading to central obesity. In this regard, we aimed to characterize an experimental model of iatrogenic hypercortisolism in rats with significant AT redistribution. Male Wistar rats were distributed into control (CT) and GC-treated, which received dexamethasone sodium phosphate (0.5 mg/kg/day) by an osmotic minipump, for 4 weeks. GC-treated rats reproduced several characteristics observed in human hypercortisolism/Cushing’s syndrome, such as HPA axis inhibition, glucose intolerance, insulin resistance, dyslipidemia, hepatic lipid accumulation, and AT redistribution. There was an increase in the mesenteric (meWAT), perirenal (prWAT), and interscapular brown (BAT) ATs mass, but a reduction of the retroperitoneal (rpWAT) mass compared to CT rats. Overexpressed lipolytic and lipogenic gene profiles were observed in white adipose tissue (WAT) of GC rats as BAT dysfunction and whitening. The AT remodeling in response to GC excess showed more importance than the increase of AT mass per se, and it cannot be explained just by GC regulation of gene transcription.
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29
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El-Kafoury B, Mohamed F, Bahgat N, El Samad AA, Shawky M, Abdel-Hady EA. Failure of subcutaneous lipectomy to combat metabolic dysregulations in ovariectomy-induced obesity in young female rats. Hormones (Athens) 2022; 21:421-436. [PMID: 35486321 PMCID: PMC9464754 DOI: 10.1007/s42000-022-00371-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 04/12/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE The deleterious effect of visceral adipose tissue accumulation is well known. However, the recent trend in liposuction is mal-directed toward easily accessible subcutaneous fat for the purpose of body shaping. The aim of the present study is to probe the metabolic effects of subcutaneous abdominal adipose tissue lipectomy in ovariectomized obese rats as well as the role of adipokines in these changes. METHODS The study was conducted on young female rats randomized into two main groups according to the duration of the experiment, namely, 5-week and 10-week. Both groups were subdivided as follows: sham-operated, ovariectomized, and ovariectomized lipectomized rat groups. The rats underwent measurement of body weight (BW) and determination of body mass index (BMI). Fasting blood glucose, lipid profile, liver function, plasma malondialdehyde, leptin, and adiponectin were estimated, and the content of both blood and hepatic tissue of reduced glutathione was assessed. In addition, histological study of the liver, aorta, and perirenal fat of all rat groups was performed. RESULTS Ovariectomy-induced obesity is marked by a significant increase in BW and BMI. Following subcutaneous lipectomy, the rats exhibited significant weight gain accompanied by fasting hyperglycemia, dyslipidemia, deterioration of synthetic function of the liver, and disturbed oxidant/antioxidant status. Histological examination revealed fatty infiltration of aortic and hepatic tissues. CONCLUSION Despite the immediate positive effect of subcutaneous lipectomy for weight loss and/or body shaping, multiple delayed hazards follow the procedure, which should be carefully considered.
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Affiliation(s)
- Bataa El-Kafoury
- Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Fatma Mohamed
- Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Nehal Bahgat
- Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Abeer Abd El Samad
- Histology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mona Shawky
- Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Enas A Abdel-Hady
- Physiology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
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Effects of a Mixed Exercise Program on Overweight and Obese Children and Adolescents: A Pilot, Uncontrolled Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19159258. [PMID: 35954616 PMCID: PMC9368334 DOI: 10.3390/ijerph19159258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/22/2022] [Accepted: 07/26/2022] [Indexed: 11/23/2022]
Abstract
Pediatric excess weight has reached severity worldwide, affecting physical health. Decreasing weight and body mass index (BMI) after exercise intervention reduces the cardiometabolic consequences; the role of age and gender on the effectiveness of exercise in overweight youth was debated in this study. A total of 138 overweight/obese young (75 girls, 63 boys) were recruited at Perugia (Italy) University to follow an exercise program. Participants were allocated into two groups (children, n = 88 and adolescents, n = 50). The study aimed to verify the efficacy of a mixed resistance–endurance exercise program in anthropometric and physical performance measures, evaluating the influence of gender and age on two groups of young overweight/obese participants. In children, we observed a statistically significant improvement in fat mass percentage, fat-free mass, waist circumference (WC), fat mass, as well as in strength, endurance, speed, and flexibility measures. We also observed reduced WC and waist-to-height ratio (WHtR) values in girls. In the adolescents’ subgroup, results showed a statistically significant variation in fat mass percentage, BMI, WC, and WHtR, and strength of the upper and lower limbs; we also observed a weight reduction in girls. A clinical approach, with the combination of strength and dynamometric tests plus the body composition study using air plethysmography methodology, is health-effective and allows for the monitoring of the efficacy of an exercise program in overweight/obese young people.
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A new radiological index for the assessment of higher body fat status and lumbar spine degeneration. Skeletal Radiol 2022; 51:1261-1271. [PMID: 34792625 DOI: 10.1007/s00256-021-03957-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/10/2021] [Accepted: 11/10/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Obesity has been proposed as a risk factor for low back pain (LBP) and intervertebral disc degeneration (IVDD). Even though body mass index (BMI) is used as a parameter for obesity, it could not represent percentage and distribution of the body fat. Subcutaneous fat tissue thickness (SFTT) was proposed as one of the magnetic resonance imaging (MRI) parameters to evaluate the percentage of the body fat. In this study, we aimed to find out whether SFTT at lower back correlated with LBP and spine degeneration. MATERIALS AND METHODS We retrospectively reviewed a database of the patients with LBP. Concomitantly, asymptomatic control subjects were retrieved. Patients and control subjects were evaluated in terms of IVDD and Modic changes at all lumbar levels on MRI. SFTT was measured both on MRI and computed tomography (CT) scans, where applicable. RESULTS SFTT at the lumbar spine had moderate-to-strong correlations with BMI. SFTT at L1-L2 level was significantly associated with severe IVDD at L5-S1 level, and Modic changes at L4-L5 and L5-S1 levels. BMI had no significant association with severe IVDD and Modic changes at lumbar spine. BMI and mean SFTT of all lumbar levels had ORs of 0.735 (95% CI: 0.631-0.857, p < 0.001) and 1.389 (95% CI: 1.266-1.524, p < 0.001) in predicting symptomatic subjects with LBP. CONCLUSION SFTT at upper lumbar levels could predict severe IVDD and Modic changes better than BMI, specifically in men. SFTT was better than BMI in predicting a symptomatic patient with LBP.
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Pester MS, Gonzalez A, Schmaus JA, Wohlgemuth W, McCabe PM, Iacobellis G, Schneiderman N, Hurwitz BE. Sex differences in the association of vital exhaustion with regional fat deposition and subclinical cardiovascular disease risk. J Psychosom Res 2022; 157:110785. [PMID: 35366516 PMCID: PMC10986308 DOI: 10.1016/j.jpsychores.2022.110785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 03/03/2022] [Accepted: 03/14/2022] [Indexed: 11/21/2022]
Abstract
OBJECTIVE Vital exhaustion (VE) is more strongly associated with cardiovascular disease (CVD) risk for women than men. This study examined whether sex differences in associations of VE with CVD risk markers are accounted for by unique associations of VE with regional adiposity. METHODS The study enrolled 143 persons (18-55 years) without diagnosed conditions. VE was assessed by the Maastricht questionnaire. CVD indices were measured using the euglycemic-hyperinsulinemia clamp, resting blood pressure, and blood draws. Regional adiposity was measured using computed tomography and 2-D echocardiography. This cross-sectional study employed a path analysis approach, including relevant covariates. RESULTS Of the cohort, aged 38.7 ± 8.4 years, 65% were men, and 41% were obese. The final model had excellent fit (χ2(36) = 36.5, p = .45; RMSEA = 0.009, CFI = 0.999). For women, but not men, the model indicated paths from VE to: 1) lower insulin sensitivity (B = -0.10, p = .04), and higher total cholesterol to HDL ratio (B = 0.12, p = .09), triglycerides (B = 0.10, p = .08), and C-reactive protein (B = 0.08, p = .09) through visceral adiposity; 2) higher mean arterial pressure (B = 0.14, p = .04), lower insulin sensitivity (B = -0.09, p = .08), and higher C-reactive protein (B = 0.12, p = .07) through subcutaneous adiposity; 3) lower insulin sensitivity (B = -0.07, p = .08) and higher total cholesterol to HDL ratio (B = 0.16, p = .03) through liver adiposity; and 4) higher C-reactive protein (B = 0.08, p = .09) through epicardial adiposity. CONCLUSION Results extend prior evidence by showing that the association of VE with CVD risk in women is linked with specific regional adiposity elevation. Further study of adiposity-related mechanisms in women who experience early decline in vitality may inform clinical targets for CVD prevention.
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Affiliation(s)
- Mollie S Pester
- Behavioral Medicine Research Center, University of Miami, Miami, FL, USA; Department of Psychology, University of Miami, Coral Gables, FL, USA.
| | - Alex Gonzalez
- Behavioral Medicine Research Center, University of Miami, Miami, FL, USA.
| | - Jennifer A Schmaus
- Behavioral Medicine Research Center, University of Miami, Miami, FL, USA; Department of Psychology, University of Miami, Coral Gables, FL, USA.
| | - William Wohlgemuth
- Psychology and Neurology Service, Bruce W. Carter Medical Center, Miami VA Healthcare System, Sleep Disorders Center, Room A212, 1201 NW 16th ST, Miami, FL 33125, USA.
| | - Philip M McCabe
- Behavioral Medicine Research Center, University of Miami, Miami, FL, USA; Department of Psychology, University of Miami, Coral Gables, FL, USA.
| | - Gianluca Iacobellis
- Division of Endocrinology, Diabetes and Metabolism, Miller School of Medicine, University of Miami, Miami, FL, USA.
| | - Neil Schneiderman
- Behavioral Medicine Research Center, University of Miami, Miami, FL, USA; Department of Psychology, University of Miami, Coral Gables, FL, USA; Division of Endocrinology, Diabetes and Metabolism, Miller School of Medicine, University of Miami, Miami, FL, USA.
| | - Barry E Hurwitz
- Behavioral Medicine Research Center, University of Miami, Miami, FL, USA; Department of Psychology, University of Miami, Coral Gables, FL, USA; Division of Endocrinology, Diabetes and Metabolism, Miller School of Medicine, University of Miami, Miami, FL, USA.
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Goerlich E, Schär M, Bagchi S, Soleimani-Fard A, Brown TT, Sarkar S, Bonanno G, Streeb V, Gerstenblith G, Barditch-Crovo P, Weiss RG, Hays AG. Coronary Endothelial Dysfunction in People Living With HIV Is Related to Body Fat Distribution. J Acquir Immune Defic Syndr 2022; 90:201-207. [PMID: 35131972 PMCID: PMC9203878 DOI: 10.1097/qai.0000000000002932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 01/25/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND People living with HIV (PLWH) on antiretroviral therapy (ART) are at increased risk of atherosclerotic disease. Abnormal adipose distribution is common in PLWH and may contribute to atherosclerosis. Because coronary artery endothelial function (CEF) is impaired in early atherosclerosis, predicts future cardiovascular events, and is reduced in PLWH, we investigated associations between body fat distribution and CEF in PLWH. SETTING Prospective cohort study. METHODS PLWH on stable ART underwent MRI to quantify CEF, measured as change in coronary cross-sectional area from rest to that during isometric handgrip exercise, an endothelial-dependent stressor. Abdominal visceral and subcutaneous fat area (axial L4 level) and liver fat fraction were quantified using MRI. Linear regression was used to determine associations between CEF and independent variables. RESULTS Among 84 PLWH (52 ± 11 years; 33% women), mean cross-sectional area change was 0.74 ± 11.7%, indicating impaired CEF. On univariable regression analysis, CEF was inversely related to waist circumference (R = -0.31, P = 0.014), hip circumference (R = -0.27, P = 0.037), and subcutaneous fat area (R = -0.25, P = 0.031). We did not observe significant relationships between CEF and liver fat fraction, waist/hip ratio, or visceral fat area. On multivariable regression adjusted for age, sex, and race, CEF was associated with waist circumference, hip circumference, subcutaneous fat, and liver fat fraction. CONCLUSION Waist and hip circumference and subcutaneous fat area are associated with impaired CEF, an established metric of abnormal vascular health in PLWH on stable ART, and may contribute to the increased rate of heart disease in this population.
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Affiliation(s)
- Erin Goerlich
- Division of Cardiology, Johns Hopkins University, Baltimore, MD
| | - Michael Schär
- Department of Radiology, Johns Hopkins University, Baltimore, MD
| | - Shashwatee Bagchi
- Division of Infectious Disease and Institute of Human Virology, University of Maryland, Baltimore, MD; and
| | | | | | | | - Gabriele Bonanno
- Division of Cardiology, Johns Hopkins University, Baltimore, MD
- Department of Radiology, Johns Hopkins University, Baltimore, MD
| | - Valerie Streeb
- Division of Cardiology, Johns Hopkins University, Baltimore, MD
| | | | | | - Robert G Weiss
- Division of Cardiology, Johns Hopkins University, Baltimore, MD
- Department of Radiology, Johns Hopkins University, Baltimore, MD
| | - Allison G Hays
- Division of Cardiology, Johns Hopkins University, Baltimore, MD
- Department of Radiology, Johns Hopkins University, Baltimore, MD
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Yang L, Jia X, Fang D, Cheng Y, Zhai Z, Deng W, Du B, Lu T, Wang L, Yang C, Gao Y. Metformin Inhibits Lipid Droplets Fusion and Growth via Reduction in Cidec and Its Regulatory Factors in Rat Adipose-Derived Stem Cells. Int J Mol Sci 2022; 23:ijms23115986. [PMID: 35682666 PMCID: PMC9181043 DOI: 10.3390/ijms23115986] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/22/2022] [Accepted: 05/24/2022] [Indexed: 11/16/2022] Open
Abstract
Metformin is still being investigated due to its potential use as a therapeutic agent for managing overweight or obesity. However, the underlying mechanisms are not fully understood. Inhibiting the adipogenesis of adipocyte precursors may be a new therapeutic opportunity for obesity treatments. It is still not fully elucidated whether adipogenesis is also involved in the weight loss mechanisms by metformin. We therefore used adipose-derived stem cells (ADSCs) from inguinal and epididymal fat pads to investigate the effects and mechanisms of metformin on adipogenesis in vitro. Our results demonstrate the similar effect of metformin inhibition on lipid accumulation, lipid droplets fusion, and growth in adipose-derived stem cells from epididymal fat pads (Epi-ADSCs) and adipose-derived stem cells from inguinal fat pads (Ing-ADSCs) cultures. We identified that cell death-inducing DFFA-like effector c (Cidec), Perilipin1, and ras-related protein 8a (Rab8a) expression increased ADSCs differentiation. In addition, we found that metformin inhibits lipid droplets fusion and growth by decreasing the expression of Cidec, Perilipin1, and Rab8a. Activation of AMPK pathway signaling in part involves metformin inhibition on Cidec, Perilipin1, and Rab8a expression. Collectively, our study reveals that metformin inhibits lipid storage, fusion, and growth of lipid droplets via reduction in Cidec and its regulatory factors in ADSCs cultures. Our study supports the development of clinical trials on metformin-based therapy for patients with overweight and obesity.
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Affiliation(s)
- Lijing Yang
- Department of Human Anatomy, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; (L.Y.); (X.J.); (D.F.); (Z.Z.); (W.D.); (B.D.); (T.L.); (L.W.)
| | - Xiaowei Jia
- Department of Human Anatomy, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; (L.Y.); (X.J.); (D.F.); (Z.Z.); (W.D.); (B.D.); (T.L.); (L.W.)
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Capital Medical University, Beijing 100069, China
| | - Dongliang Fang
- Department of Human Anatomy, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; (L.Y.); (X.J.); (D.F.); (Z.Z.); (W.D.); (B.D.); (T.L.); (L.W.)
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Capital Medical University, Beijing 100069, China
| | - Yuan Cheng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China;
| | - Zhaoyi Zhai
- Department of Human Anatomy, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; (L.Y.); (X.J.); (D.F.); (Z.Z.); (W.D.); (B.D.); (T.L.); (L.W.)
| | - Wenyang Deng
- Department of Human Anatomy, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; (L.Y.); (X.J.); (D.F.); (Z.Z.); (W.D.); (B.D.); (T.L.); (L.W.)
| | - Baopu Du
- Department of Human Anatomy, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; (L.Y.); (X.J.); (D.F.); (Z.Z.); (W.D.); (B.D.); (T.L.); (L.W.)
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Capital Medical University, Beijing 100069, China
| | - Tao Lu
- Department of Human Anatomy, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; (L.Y.); (X.J.); (D.F.); (Z.Z.); (W.D.); (B.D.); (T.L.); (L.W.)
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Capital Medical University, Beijing 100069, China
| | - Lulu Wang
- Department of Human Anatomy, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; (L.Y.); (X.J.); (D.F.); (Z.Z.); (W.D.); (B.D.); (T.L.); (L.W.)
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Capital Medical University, Beijing 100069, China
| | - Chun Yang
- Department of Human Anatomy, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; (L.Y.); (X.J.); (D.F.); (Z.Z.); (W.D.); (B.D.); (T.L.); (L.W.)
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Capital Medical University, Beijing 100069, China
- Department of Experimental Center for Basic Medical Teaching, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
- Correspondence: (C.Y.); (Y.G.)
| | - Yan Gao
- Department of Human Anatomy, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; (L.Y.); (X.J.); (D.F.); (Z.Z.); (W.D.); (B.D.); (T.L.); (L.W.)
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Capital Medical University, Beijing 100069, China
- Department of Experimental Center for Basic Medical Teaching, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
- Correspondence: (C.Y.); (Y.G.)
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Zhang X, Chen H, Gu K, Jiang X. Association of Body Mass Index and Abdominal Obesity with the Risk of Airflow Obstruction: National Health and Nutrition Examination Survey (NHANES) 2007-2012. COPD 2022; 19:99-108. [PMID: 35385365 DOI: 10.1080/15412555.2022.2032627] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
This study aimed to explore the relationship between body mass index (BMI) and abdominal obesity and the risk of airflow obstruction, based on the data from the 2007-2012 National Health and Nutrition Survey (NHANES). Logistic regression was applied to assess the relationships between BMI or abdominal obesity and the risk of airflow obstruction by the fixed ratio method and the lower limit of normal (LLN) method. We further used the restricted cubic splines with 3 knots located at the 5th, 50th, and 95th percentiles of the distribution to evaluate the dose-response relationship. A total of 12,865 individuals aged 20-80 years old were included. In the fixed ratio method, underweight was positively correlated with the risk of airflow obstruction, and overweight and obesity were negatively correlated with the risk of airflow obstruction. In the LLN method, the results were consistent with the fixed ratio method. Abdominal obesity was positively associated with the risk of airflow obstruction only in the fixed ratio method (OR: 1.41, 95% CI: 1.04-1.90). There was an additive interaction between underweight and smoking on airflow obstruction in both methods. Abdominal obesity and smoking had additive interactions in the LLN method. Dose-response analysis indicated that there was a non-linear trend between BMI and the risk of airflow obstruction (Pfor nonlinearity < 0.01). Our study suggested that underweight and abdominal obesity were associated with the increased risk of airflow obstruction, and overweight and general obesity were associated with the decreased risk of airflow obstruction.
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Affiliation(s)
- Xiaofei Zhang
- Department of Epidemiology and Health Statistics, The School of Public Health, Qingdao University, Qingdao, Shandong, China
| | - Hongru Chen
- Department of Epidemiology and Health Statistics, The School of Public Health, Qingdao University, Qingdao, Shandong, China
| | - Kunfang Gu
- Weifang Center for Disease Control and Prevention, Weifang, Shandong, China
| | - Xiubo Jiang
- Department of Epidemiology and Health Statistics, The School of Public Health, Qingdao University, Qingdao, Shandong, China
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Berikol G, Ekşi MŞ, Aydın L, Börekci A, Özcan-Ekşi EE. Subcutaneous fat index: a reliable tool for lumbar spine studies. Eur Radiol 2022; 32:6504-6513. [PMID: 35380225 DOI: 10.1007/s00330-022-08775-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 03/20/2022] [Accepted: 03/26/2022] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Obesity has been proposed as a risk factor for low back pain (LBP), and the body mass index (BMI) has been used for obesity; however, a more reliable tool is required to assess obesity-related health issues. A recent study depicted the subcutaneous fat tissue thickness (SFTT) at the L1-L2 level as superior to BMI in predicting LBP and spine degeneration. However, the study failed to answer the following questions: (1) What was the cutoff value for the SFTT to predict LBP and spine degeneration? (2) Could this new index be adjusted according to gender? (3) Could this new index predict fatty infiltration in the paraspinal muscles, severe intervertebral disk degeneration (IVDD), and Modic changes in the lumbar spine? Therefore, the current study aimed to answer these questions by developing and validating a new anthropometric index-the subcutaneous fat index (SFI). METHODS This study retrospectively reviewed the magnetic resonance imaging database of patients with LBP and compared them with asymptomatic volunteers. RESULTS Appropriate cutoff values for females and males were 8.45 mm and 9.4 mm, respectively. Females and males with the SFI of > 8.45 mm and > 9.4 mm, respectively, had significantly higher rates of spine degeneration. CONCLUSION The SFI reliably distinguished patients with LBP from the asymptomatic subjects and could reliably distinguish patients with severe IVDD/Modic changes at the lower lumbar levels and those with moderate-to-severe fat-infiltrated paraspinal muscles at all lumbar levels with reliable cutoff values for males and females. KEY POINTS • The subcutaneous fat tissue thickness at L1-L2 level (subcutaneous fat index [SFI]) was superior to BMI in predicting LBP and spine degeneration. However, a reliable cutoff value has not been previously defined. • The subcutaneous fat index had reliable cutoff values of 8.45 mm and 9.4 mm for females and males, respectively. • Females with an SFI of > 8.45 mm and males with > 9.4 mm had significantly higher rates of severe IVDD, Modic changes, and fatty infiltration in their paraspinal muscles.
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Affiliation(s)
- Gürkan Berikol
- Neurosurgery Clinic, Taksim Training and Research Hospital, Istanbul, Turkey
| | - Murat Şakir Ekşi
- Neurosurgery Clinic, Fatih Sultan Mehmet Training and Research Hospital, Istanbul, Turkey. .,Neurosurgery Research Laboratory, School of Medicine, Yeditepe University, Istanbul, Turkey.
| | - Levent Aydın
- Neurosurgery Clinic, Muş State Hospital, Muş, Turkey
| | - Ali Börekci
- Neurosurgery Clinic, Fatih Sultan Mehmet Training and Research Hospital, Istanbul, Turkey
| | - Emel Ece Özcan-Ekşi
- Department of Physical Medicine and Rehabilitation, School of Medicine, Bahçeşehir University, Istanbul, Turkey
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Abstract
Coronavirus Disease 2019 (COVID-19) is characterized with a wide range of clinical presentations from asymptomatic to severe disease. In patients with severe disease, the main causes of mortality have been acute respiratory distress syndrome, cytokine storm and thrombotic events. Although all factors that may be associated with disease severity are not yet clear, older age remains a leading risk factor. While age-related immune changes may be at the bottom of severe course of COVID-19, age-related hormonal changes have considerable importance due to their interactions with these immune alterations, and also with endothelial dysfunction and comorbid cardiometabolic disorders. This review aims to provide the current scientific evidence on the pathogenetic mechanisms underlying the pathway to severe COVID-19, from a collaborative perspective of age-related immune and hormonal changes together, in accordance with the clinical knowledge acquired thus far.
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Affiliation(s)
- Seda Hanife Oguz
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Hacettepe University School of Medicine, Ankara, Turkey
| | - Meltem Koca
- Division of Geriatrics, Department of Internal Medicine, Hacettepe University School of Medicine, Ankara, Turkey
| | - Bulent Okan Yildiz
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Hacettepe University School of Medicine, Ankara, Turkey.
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Yunianto AE, Kushargina R, Permatasari TAE. Body Fat Composition Related to Fatty Snack Habit Consumption of Office Workers in Urban Area. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.7280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND:The fatty snack cooked with a deep-fried process is a snack that is often consumed by Indonesian people. The high oil content in fatty snacks results in the risk of obesity.
AIM: The purpose of this study was to analyze the consumption habits of fatty snacks with body fat composition of office workers in urban area.
METHOD: This research design uses a cross-sectional study with a purposive sampling method consisting of men and women with a total of 112 respondents. Food consumption data were obtained using semi-quantitative FFQ, while body fat composition used Bio Electrical Impedance Analysis. The relationship between fatty snacks consumption and body fat was analyzed using the chi-square test, while the differences between the two groups based on gender were analyzed using the independent sample t-test.
RESULT: There was a significant relationship between age and body fat (P=0.005) and visceral fat (P=0.004). Nutritional status had a significant relationship with body fat (P=0.003) and visceral fat (P=0.000). Fatty snacks consumption habits were associated with body fat (P=0.008), while not visceral fat (P>0.05). There was no significant difference (p>0.05) between men and women based on body and visceral fat composition, nutritional status, and frequency of consumption of fatty snacks.
CONCLUSION: Consumption of Fatty snacks more than once per day is closely related to body fat.
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Sowah SA, Milanese A, Schübel R, Wirbel J, Kartal E, Johnson TS, Hirche F, Grafetstätter M, Nonnenmacher T, Kirsten R, López-Nogueroles M, Lahoz A, Schwarz KV, Okun JG, Ulrich CM, Nattenmüller J, von Eckardstein A, Müller D, Stangl GI, Kaaks R, Kühn T, Zeller G. Calorie restriction improves metabolic state independently of gut microbiome composition: a randomized dietary intervention trial. Genome Med 2022; 14:30. [PMID: 35287713 PMCID: PMC8919571 DOI: 10.1186/s13073-022-01030-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 02/14/2022] [Indexed: 12/12/2022] Open
Abstract
Background The gut microbiota has been suggested to play a significant role in the development of overweight and obesity. However, the effects of calorie restriction on gut microbiota of overweight and obese adults, especially over longer durations, are largely unexplored. Methods Here, we longitudinally analyzed the effects of intermittent calorie restriction (ICR) operationalized as the 5:2 diet versus continuous calorie restriction (CCR) on fecal microbiota of 147 overweight or obese adults in a 50-week parallel-arm randomized controlled trial, the HELENA Trial. The primary outcome of the trial was the differential effects of ICR versus CCR on gene expression in subcutaneous adipose tissue. Changes in the gut microbiome, which are the focus of this publication, were defined as exploratory endpoint of the trial. The trial comprised a 12-week intervention period, a 12-week maintenance period, and a final follow-up period of 26 weeks. Results Both diets resulted in ~5% weight loss. However, except for Lactobacillales being enriched after ICR, post-intervention microbiome composition did not significantly differ between groups. Overall weight loss was associated with significant metabolic improvements, but not with changes in the gut microbiome. Nonetheless, the abundance of the Dorea genus at baseline was moderately predictive of subsequent weight loss (AUROC of 0.74 for distinguishing the highest versus lowest weight loss quartiles). Despite the lack of consistent intervention effects on microbiome composition, significant study group-independent co-variation between gut bacterial families and metabolic biomarkers, anthropometric measures, and dietary composition was detectable. Our analysis in particular revealed associations between insulin sensitivity (HOMA-IR) and Akkermansiaceae, Christensenellaceae, and Tanerellaceae. It also suggests the possibility of a beneficial modulation of the latter two intestinal taxa by a diet high in vegetables and fiber, and low in processed meat. Conclusions Overall, our results suggest that the gut microbiome remains stable and highly individual-specific under dietary calorie restriction. Trial registration The trial, including the present microbiome component, was prospectively registered at ClinicalTrials.govNCT02449148 on May 20, 2015. Supplementary Information The online version contains supplementary material available at 10.1186/s13073-022-01030-0.
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Affiliation(s)
- Solomon A Sowah
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany.,Medical Faculty, Heidelberg University, Heidelberg, Germany.,European Molecular Biology Laboratory (EMBL), Structural and Computational Biology Unit, Heidelberg, Germany
| | - Alessio Milanese
- European Molecular Biology Laboratory (EMBL), Structural and Computational Biology Unit, Heidelberg, Germany
| | - Ruth Schübel
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Jakob Wirbel
- European Molecular Biology Laboratory (EMBL), Structural and Computational Biology Unit, Heidelberg, Germany
| | - Ece Kartal
- European Molecular Biology Laboratory (EMBL), Structural and Computational Biology Unit, Heidelberg, Germany.,Molecular Medicine Partnership Unit, Heidelberg, Germany
| | - Theron S Johnson
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Frank Hirche
- Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Mirja Grafetstätter
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Tobias Nonnenmacher
- Heidelberg University Hospital, Diagnostic and Interventional Radiology, Heidelberg, Germany
| | - Romy Kirsten
- Biobank of the National Center for Tumor Diseases (NCT) Heidelberg, Heidelberg, Germany
| | - Marina López-Nogueroles
- Analytical Unit, Biomarkers and Precision Medicine Unit, Health Research Institute Hospital La Fe, Valencia, Spain
| | - Agustín Lahoz
- Analytical Unit, Biomarkers and Precision Medicine Unit, Health Research Institute Hospital La Fe, Valencia, Spain
| | - Kathrin V Schwarz
- Department of General Paediatrics, Division of Neuropediatrics and Metabolic Medicine, University Hospital Heidelberg, Dietmar-Hopp Metabolic Center, Heidelberg, Germany
| | - Jürgen G Okun
- Department of General Paediatrics, Division of Neuropediatrics and Metabolic Medicine, University Hospital Heidelberg, Dietmar-Hopp Metabolic Center, Heidelberg, Germany
| | - Cornelia M Ulrich
- Huntsman Cancer Institute and Department of Population Health Sciences, University of Utah, Salt Lake City, UT, USA
| | - Johanna Nattenmüller
- Heidelberg University Hospital, Diagnostic and Interventional Radiology, Heidelberg, Germany
| | | | - Daniel Müller
- Institute of Clinical Chemistry (IGFS), University Hospital Zurich, Zurich, Switzerland
| | - Gabriele I Stangl
- Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Rudolf Kaaks
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Tilman Kühn
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany. .,Institute for Global Food Security, Queen's University Belfast, Belfast, Northern Ireland, UK. .,Heidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg, Germany.
| | - Georg Zeller
- European Molecular Biology Laboratory (EMBL), Structural and Computational Biology Unit, Heidelberg, Germany.
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40
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Ahn C, Ryan BJ, Schleh MW, Varshney P, Ludzki AC, Gillen JB, Van Pelt DW, Pitchford LM, Howton SM, Rode T, Hummel SL, Burant CF, Little JP, Horowitz JF. Exercise training remodels subcutaneous adipose tissue in adults with obesity even without weight loss. J Physiol 2022; 600:2127-2146. [PMID: 35249225 PMCID: PMC9058215 DOI: 10.1113/jp282371] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 03/01/2022] [Indexed: 11/08/2022] Open
Abstract
Excessive adipose tissue mass underlies much of the metabolic health complications in obesity. Although exercise training is known to improve metabolic health in individuals with obesity, the effects of exercise training without weight loss on adipose tissue structure and metabolic function remain unclear. Thirty-six adults with obesity (body mass index = 33 ± 3 kg · m-2 ) were assigned to 12 weeks (4 days week-1 ) of either moderate-intensity continuous training (MICT; 70% maximal heart rate, 45 min; n = 17) or high-intensity interval training (HIIT; 90% maximal heart rate, 10 × 1 min; n = 19), maintaining their body weight throughout. Abdominal subcutaneous adipose tissue (aSAT) biopsy samples were collected once before and twice after training (1 day after last exercise and again 4 days later). Exercise training modified aSAT morphology (i.e. reduced fat cell size, increased collagen type 5a3, both P ≤ 0.05, increased capillary density, P = 0.05) and altered protein abundance of factors that regulate aSAT remodelling (i.e. reduced matrix metallopeptidase 9; P = 0.02; increased angiopoietin-2; P < 0.01). Exercise training also increased protein abundance of factors that regulate lipid metabolism (e.g. hormone sensitive lipase and fatty acid translocase; P ≤ 0.03) and key proteins involved in the mitogen-activated protein kinase pathway when measured the day after the last exercise session. However, most of these exercise-mediated changes were no longer significant 4 days after exercise. Importantly, MICT and HIIT induced remarkably similar adaptations in aSAT. Collectively, even in the absence of weight loss, 12 weeks of exercise training induced changes in aSAT structure, as well as factors that regulate metabolism and the inflammatory signal pathway in adults with obesity. KEY POINTS: Exercise training is well-known to improve metabolic health in obesity, although how exercise modifies the structure and metabolic function of adipose tissue, in the absence of weight loss, remains unclear. We report that both 12 weeks of moderate-intensity continuous training (MICT) and 12 weeks of high-intensity interval training (HIIT) induced modifications in adipose tissue structure and factors that regulate adipose tissue remodelling, metabolism and the inflammatory signal pathway in adults with obesity, even without weight loss (with no meaningful differences between MICT and HIIT). The modest modifications in adipose tissue structure in response to 12 weeks of MICT or HIIT did not lead to changes in the rate of fatty acid release from adipose tissue. These results expand our understanding about the effects of two commonly used exercise training prescriptions (MICT and HIIT) on adipose tissue remodelling that may lead to advanced strategies for improving metabolic health outcomes in adults with obesity.
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Affiliation(s)
- Cheehoon Ahn
- Substrate Metabolism Laboratory School of Kinesiology University of Michigan Ann Arbor Michigan 48109
| | - Benjamin J. Ryan
- Substrate Metabolism Laboratory School of Kinesiology University of Michigan Ann Arbor Michigan 48109
| | - Michael W. Schleh
- Substrate Metabolism Laboratory School of Kinesiology University of Michigan Ann Arbor Michigan 48109
| | - Pallavi Varshney
- Substrate Metabolism Laboratory School of Kinesiology University of Michigan Ann Arbor Michigan 48109
| | - Alison C. Ludzki
- Substrate Metabolism Laboratory School of Kinesiology University of Michigan Ann Arbor Michigan 48109
| | - Jenna B. Gillen
- Substrate Metabolism Laboratory School of Kinesiology University of Michigan Ann Arbor Michigan 48109
- Faculty of Kinesiology and Physical Education University of Toronto Toronto Ontario M5S 2C9 Canada
| | - Douglas W. Van Pelt
- Substrate Metabolism Laboratory School of Kinesiology University of Michigan Ann Arbor Michigan 48109
| | - Lisa M. Pitchford
- Substrate Metabolism Laboratory School of Kinesiology University of Michigan Ann Arbor Michigan 48109
| | - Suzette M. Howton
- Substrate Metabolism Laboratory School of Kinesiology University of Michigan Ann Arbor Michigan 48109
| | - Thomas Rode
- Substrate Metabolism Laboratory School of Kinesiology University of Michigan Ann Arbor Michigan 48109
| | - Scott L. Hummel
- Division of Cardiology Department of Internal Medicine University of Michigan Ann Arbor Michigan 48109
- Ann Arbor Veterans Affairs Health System Ann Arbor Michigan 48109
| | - Charles F. Burant
- Division of Metabolism, Endocrinology, and Diabetes Department of Internal Medicine University of Michigan Ann Arbor MI 48109
| | - Jonathan P. Little
- School of Health and Exercise Sciences University of British Columbia Okanagan Campus Kelowna British Columbia V1V 1V7 Canada
| | - Jeffrey F. Horowitz
- Substrate Metabolism Laboratory School of Kinesiology University of Michigan Ann Arbor Michigan 48109
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41
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Kasza I, Kühn JP, Völzke H, Hernando D, Xu YG, Siebert JW, Gibson ALF, Yen CLE, Nelson DW, MacDougald OA, Richardson NE, Lamming DW, Kern PA, Alexander CM. Contrasting recruitment of skin-associated adipose depots during cold challenge of mouse and human. J Physiol 2022; 600:847-868. [PMID: 33724479 PMCID: PMC8443702 DOI: 10.1113/jp280922] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 03/02/2021] [Indexed: 02/03/2023] Open
Abstract
KEY POINTS Several distinct strategies produce and conserve heat to maintain the body temperature of mammals, each associated with unique physiologies, with consequences for wellness and disease susceptibility Highly regulated properties of skin offset the total requirement for heat production We hypothesize that the adipose component of skin is primarily responsible for modulating heat flux; here we evaluate the relative regulation of adipose depots in mouse and human, to test their recruitment to heat production and conservation We found that insulating mouse dermal white adipose tissue accumulates in response to environmentally and genetically induced cool stress; this layer is one of two adipose depots closely apposed to mouse skin, where the subcutaneous mammary gland fat pads are actively recruited to heat production In contrast, the body-wide adipose depot associated with human skin produces heat directly, potentially creating an alternative to the centrally regulated brown adipose tissue ABSTRACT: Mammalian skin impacts metabolic efficiency system-wide, controlling the rate of heat loss and consequent heat production. Here we compare the unique fat depots associated with mouse and human skin, to determine whether they have corresponding functions and regulation. For humans, we assay a skin-associated fat (SAF) body-wide depot to distinguish it from the subcutaneous fat pads characteristic of the abdomen and upper limbs. We show that the thickness of SAF is not related to general adiposity; it is much thicker (1.6-fold) in women than men, and highly subject-specific. We used molecular and cellular assays of β-adrenergic-induced lipolysis and found that dermal white adipose tissue (dWAT) in mice is resistant to lipolysis; in contrast, the body-wide human SAF depot becomes lipolytic, generating heat in response to β-adrenergic stimulation. In mice challenged to make more heat to maintain body temperature (either environmentally or genetically), there is a compensatory increase in thickness of dWAT: a corresponding β-adrenergic stimulation of human skin adipose (in vivo or in explant) depletes adipocyte lipid content. We summarize the regulation of skin-associated adipocytes by age, sex and adiposity, for both species. We conclude that the body-wide dWAT depot of mice shows unique regulation that enables it to be deployed for heat preservation; combined with the actively lipolytic subcutaneous mammary fat pads they enable thermal defence. The adipose tissue that covers human subjects produces heat directly, providing an alternative to the brown adipose tissues.
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Affiliation(s)
- Ildiko Kasza
- McArdle Laboratory for Cancer Research, University of
Wisconsin-Madison, Germany
| | - Jens-Peter Kühn
- Institute and Policlinic of Diagnostic and Interventional
Radiology, Medical Faculty Carl Gustav Carus, Technical University Dresden,
Germany
| | - Henry Völzke
- Institute of Community Medicine, University of Greifswald,
Germany
| | - Diego Hernando
- Department of Radiology, University of Wisconsin-School of
Medicine and Public Health,Department of Medical Physics, University of
Wisconsin-School of Medicine and Public Health
| | - Yaohui G. Xu
- Department of Dermatology, University of Wisconsin-School
of Medicine and Public Health
| | - John W. Siebert
- Department of Surgery, University of Wisconsin-School of
Medicine and Public Health
| | - Angela LF Gibson
- Department of Surgery, University of Wisconsin-School of
Medicine and Public Health
| | - C.-L. Eric Yen
- Department of Nutritional Sciences, University of
Wisconsin-Madison
| | - David W. Nelson
- Department of Nutritional Sciences, University of
Wisconsin-Madison
| | | | - Nicole E. Richardson
- Department of Medicine, University of Wisconsin-School of
Medicine and Public Health,William S. Middleton Memorial Veterans Hospital, Madison,
Wisconsin
| | - Dudley W. Lamming
- Department of Medicine, University of Wisconsin-School of
Medicine and Public Health,William S. Middleton Memorial Veterans Hospital, Madison,
Wisconsin
| | - Philip A. Kern
- Department of Internal Medicine, University of Kentucky,
Lexington
| | - CM Alexander
- McArdle Laboratory for Cancer Research, University of
Wisconsin-Madison, Germany,corresponding author: CM Alexander, McArdle
Laboratory for Cancer Research, University of Wisconsin-Madison, 1111 Highland
Ave, Madison WI 53705-2275. Ph: 608-265 5182;
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42
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Siriarchavatana P, Kruger MC, Miller MR, Tian H(S, Wolber FM. The Influence of Obesity, Ovariectomy, and Greenshell Mussel Supplementation on Bone Mineral Density in Rats. JBMR Plus 2022; 6:e10571. [PMID: 35079679 PMCID: PMC8771000 DOI: 10.1002/jbm4.10571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 10/05/2021] [Accepted: 10/19/2021] [Indexed: 11/18/2022] Open
Abstract
Obesity is considered to impair long-term health by disturbing multiple physiological functions. However, it remains a controversial issue as to whether obesity has beneficial or detrimental effects on bone health in postmenopausal women. The aims of this study were to investigate the relationships between obesity and bone mineral density (BMD) under conditions of ovarian hormone deficiency in an animal model and to evaluate the potential health benefits of Greenshell mussel (GSM) on bone health. A total of 144 adult female Sprague-Dawley rats were fed from age 12 weeks on one of four diets (normal [ND]; ND + GSM; high fat/high sugar [HF/HS]; HF/HS + GSM; n = 36 per diet). At age 20 weeks, after a dual-energy X-ray absorptiometry (DXA) scan, 12 of the rats on each diet underwent ovariectomy (OVX) and the remaining rats were left intact. Twelve of the intact rats in each diet group were culled at age 26 weeks (short-term cohort). The remaining rats were culled at age 48 weeks (long-term cohort). Rats were DXA scanned before cull, then various fat pads were dissected. The results revealed that HF/HS rats and OVX rats dramatically increased body weight and fat deposition in correlation with leptin. In the long-term cohort, vertebral spine BMD rapidly declined after OVX. At termination, the OVX rats had decreased plasma bone turnover markers of CTX-1 and TRAP when compared with sham rats. Significantly higher BMD was found in OVX rats fed the HF/HS diet compared with ND, but this difference was not recapitulated in intact rats. BMD of right femur was significantly increased 5% to 10% by GSM in the short-term cohort. The data demonstrated that obesity can be beneficial by increasing BMD in OVX rats, and this may extrapolate to postmenopausal women as adipocyte-produced estrogen may slightly compensate for the reduction in ovarian hormones. Finally, the data showed that GSM may be beneficial to bone health by increasing BMD accrual. © 2021 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Parkpoom Siriarchavatana
- School of Food and Advanced TechnologyMassey UniversityPalmerston NorthNew Zealand
- Department of Pharmacology, Faculty of Veterinary ScienceChulalongkorn UniversityBangkokThailand
| | - Marlena C Kruger
- School of Health SciencesMassey UniversityPalmerston NorthNew Zealand
- Riddet Centre of Research ExcellenceMassey UniversityPalmerston NorthNew Zealand
| | | | | | - Frances M Wolber
- School of Food and Advanced TechnologyMassey UniversityPalmerston NorthNew Zealand
- Centre for Metabolic Health ResearchMassey UniversityPalmerston NorthNew Zealand
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43
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Finocchietto P, Perez H, Blanco G, Miksztowicz V, Marotte C, Morales C, Peralta J, Berg G, Poderoso C, Poderoso JJ, Carreras MC. Inhibition of Mitochondrial Fission by Drp-1 Blockade by Short-Term Leptin and Mdivi-1 Treatment Improves White Adipose Tissue Abnormalities in Obesity and Diabetes. Pharmacol Res 2021; 178:106028. [PMID: 34896541 DOI: 10.1016/j.phrs.2021.106028] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/25/2021] [Accepted: 12/06/2021] [Indexed: 01/11/2023]
Abstract
BACKGROUND Obesity and type 2 diabetes are chronic diseases characterized by insulin resistance, mitochondrial dysfunction and morphological abnormalities. OBJECTIVE We have investigated if dysregulation of mitochondrial dynamics and biogenesis is involved in an animal model of obesity and diabetes. METHODS The effect of short-term leptin and mdivi-1 -a selective inhibitor of Drp-1 fission-protein- treatment on mitochondrial dynamics and biogenesis was evaluated in epididymal white adipose tissue (WAT) from male ob/ob mice. RESULTS An increase in Drp-1 protein levels and a decrease in Mfn2 and OPA-1 protein expression were observed with enhanced and sustained mitochondrial fragmentation in ob/ob mice compared to wt C57BL/6 animals (p<0.05). The content of mitochondrial DNA and PGC-1α mRNA expression -both parameters of mitochondrial biogenesis- were reduced in ob/ob mice (p<0.05). Treatment with leptin and mdivi-1 significantly increased mitochondrial biogenesis, improved fusion-to-fission balance and attenuated mitochondrial dysfunction, thus inducing white-to-beige adipocyte transdifferentiation. Measurements of glucose and lipid oxidation in adipocytes revealed that both leptin and mdivi-1 increase substrates oxidation while in vivo determination of blood glucose concentration showed decreased levels by 50% in ob/ob mice, almost to the wt level. CONCLUSIONS Pharmacological targeting of Drp-1 fission protein may be a potential novel therapeutic tool for obesity and type 2 diabetes.
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Affiliation(s)
- P Finocchietto
- Laboratorio de Metabolismo del Oxígeno INIGEM-UBA-CONICET, Buenos Aires, Argentina; Departamento de Medicina, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina.
| | - H Perez
- Laboratorio de Metabolismo del Oxígeno INIGEM-UBA-CONICET, Buenos Aires, Argentina
| | - G Blanco
- Laboratorio de Inmunotoxicología (LaITo), IDEHU-CONICET, Universidad de Buenos Aires, Argentina
| | - V Miksztowicz
- Facultad de Medicina, Pontificia Universidad Católica Argentina (UCA), Instituto de Investigaciones Biomédicas (UCA-CONICET), Laboratorio de Patología Cardiovascular Experimental e Hipertensión Arterial, Buenos Aires, Argentina; Laboratorio de Lípidos y Aterosclerosis, Departamento de Bioquímica Clínica, Facultad de Farmacia y Bioquímica, Instituto de Fisiopatología y Bioquímica Clínica (INFIBIOC), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - C Marotte
- Laboratorio de Metabolismo del Oxígeno INIGEM-UBA-CONICET, Buenos Aires, Argentina
| | - C Morales
- Departamento de Patología, Facultad de Medicina, Instituto de Fisiopatología Cardiovascular, Universidad de Buenos Aires, Argentina
| | - J Peralta
- Laboratorio de Metabolismo del Oxígeno INIGEM-UBA-CONICET, Buenos Aires, Argentina; Departamento de Medicina, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - G Berg
- Laboratorio de Lípidos y Aterosclerosis, Departamento de Bioquímica Clínica, Facultad de Farmacia y Bioquímica, Instituto de Fisiopatología y Bioquímica Clínica (INFIBIOC), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - C Poderoso
- Departamento de Bioquímica Humana, Facultad de Medicina, Universidad de Buenos Aires, Argentina
| | - J J Poderoso
- Laboratorio de Metabolismo del Oxígeno INIGEM-UBA-CONICET, Buenos Aires, Argentina
| | - M C Carreras
- Laboratorio de Metabolismo del Oxígeno INIGEM-UBA-CONICET, Buenos Aires, Argentina
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Tolonen A, Pakarinen T, Sassi A, Kyttä J, Cancino W, Rinta-Kiikka I, Pertuz S, Arponen O. Methodology, clinical applications, and future directions of body composition analysis using computed tomography (CT) images: A review. Eur J Radiol 2021; 145:109943. [PMID: 34839215 DOI: 10.1016/j.ejrad.2021.109943] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 08/06/2021] [Accepted: 08/24/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE OF THE REVIEW We aim to review the methods, current research evidence, and future directions in body composition analysis (BCA) with CT imaging. RECENT FINDINGS CT images can be used to evaluate muscle tissue, visceral adipose tissue (VAT), and subcutaneous adipose tissue (SAT) compartments. Manual and semiautomatic segmentation methods are still the gold standards. The segmentation of skeletal muscle tissue and VAT and SAT compartments is most often performed at the level of the 3rd lumbar vertebra. A decreased amount of CT-determined skeletal muscle mass is a marker of impaired survival in many patient populations, including patients with most types of cancer, some surgical patients, and those admitted to the intensive care unit (ICU). Patients with increased VAT are more susceptible to impaired survival / worse outcomes; however, those patients who are critically ill or admitted to the ICU or who will undergo surgery appear to be exceptions. The independent significance of SAT is less well established. Recently, the roles of the CT-determined decrease of muscle mass and increased VAT area and epicardial adipose tissue (EAT) volume have been shown to predict a more debilitating course of illness in patients suffering from severe acute respiratory syndrome coronavirus 2 (COVID-19) infection. SUMMARY The field of CT-based body composition analysis is rapidly evolving and shows great potential for clinical implementation.
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Affiliation(s)
- Antti Tolonen
- Faculty of Medicine and Health Sciences, Tampere University, Kauppi Campus, Arvo Ylpön katu 34, 33520 Tampere, Finland.
| | - Tomppa Pakarinen
- Faculty of Medicine and Health Sciences, Tampere University, Kauppi Campus, Arvo Ylpön katu 34, 33520 Tampere, Finland; Department of Radiology, Tampere University Hospital, Elämänaukio, Kuntokatu 2, 33520 Tampere, Finland
| | - Antti Sassi
- Faculty of Medicine and Health Sciences, Tampere University, Kauppi Campus, Arvo Ylpön katu 34, 33520 Tampere, Finland; Department of Radiology, Tampere University Hospital, Elämänaukio, Kuntokatu 2, 33520 Tampere, Finland
| | - Jere Kyttä
- Faculty of Medicine and Health Sciences, Tampere University, Kauppi Campus, Arvo Ylpön katu 34, 33520 Tampere, Finland
| | - William Cancino
- Connectivity and Signal Processing Group, Universidad Industrial de Santander, Cl. 9 #Cra 27, Bucaramanga, Colombia
| | - Irina Rinta-Kiikka
- Faculty of Medicine and Health Sciences, Tampere University, Kauppi Campus, Arvo Ylpön katu 34, 33520 Tampere, Finland; Department of Radiology, Tampere University Hospital, Elämänaukio, Kuntokatu 2, 33520 Tampere, Finland
| | - Said Pertuz
- Connectivity and Signal Processing Group, Universidad Industrial de Santander, Cl. 9 #Cra 27, Bucaramanga, Colombia
| | - Otso Arponen
- Faculty of Medicine and Health Sciences, Tampere University, Kauppi Campus, Arvo Ylpön katu 34, 33520 Tampere, Finland; Department of Radiology, Tampere University Hospital, Elämänaukio, Kuntokatu 2, 33520 Tampere, Finland
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Liria-Domínguez R, Pérez-Albela M, Vásquez MP, Gómez G, Kovalskys I, Fisberg M, Cortés LY, Yépez García MC, Herrera-Cuenca M, Rigotti A, Ferrari G, Pareja RG. Correlation between Neck Circumference and Other Anthropometric Measurements in Eight Latin American Countries. Results from ELANS Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182211975. [PMID: 34831736 PMCID: PMC8625507 DOI: 10.3390/ijerph182211975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 11/16/2022]
Abstract
Neck circumference (NC) is being used to identify the risk of chronic diseases. There is a high prevalence of overweight and obesity in Latin America, and neck circumference is a simple and practical measurement to assess this, especially in primary health centers. We analyzed the correlation between the NC anthropometric indicator and other anthropometric measurements such as BMI and waist circumference (WC) in eight Latin American cities. We applied Pearson's correlation to identify the correlate NC with the other anthropometric variables stratified by sex; the sensitivity (Se) and specificity (Sp) by sex were evaluated according to the cut-off established with the Youden Index. The strongest correlations between NC and WC were found when stratified by sex (women: r = 0.71; men: r = 0.69, respectively) followed by the correlation between NC and BMI (r = 0.65, both sex). NC cut-off points of 39.0 cm in men and 32.9 cm in women identified those individuals with an increased WC and 39.8 and 33.7 cm, respectively, for a substantial increase in WC. For BMI ≥ 25.0 kg/m2 for men, the cut-off point was 37.5 cm, and for women, it was 33.1 cm, and for BMI ≥ 30 kg/m2, the cut-off points were 39.2 and 34.2 cm, for men and women, respectively. Conclusion: NC proved to be a useful, practical, and inexpensive tool that can be used to identify, evaluate, and monitor overweight and obese individuals.
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Affiliation(s)
- Reyna Liria-Domínguez
- Instituto de Investigación Nutricional, Lima 15026, Peru;
- Facultad de Ciencias de la Salud, Carrera de Nutrición y Dietética, Universidad Peruana de Ciencias Aplicadas-UPC, Lima 15067, Peru; (M.P.-A.); (M.-P.V.)
- Correspondence: or
| | - Marcela Pérez-Albela
- Facultad de Ciencias de la Salud, Carrera de Nutrición y Dietética, Universidad Peruana de Ciencias Aplicadas-UPC, Lima 15067, Peru; (M.P.-A.); (M.-P.V.)
| | - María-Paz Vásquez
- Facultad de Ciencias de la Salud, Carrera de Nutrición y Dietética, Universidad Peruana de Ciencias Aplicadas-UPC, Lima 15067, Peru; (M.P.-A.); (M.-P.V.)
| | - Georgina Gómez
- Departamento de Bioquímica, Escuela de Medicina, Universidad de Costa Rica, San José 11501-2060, Costa Rica;
| | - Irina Kovalskys
- Carrera de Nutrición, Facultad de Ciencias Médicas, Pontificia Universidad Católica Argentina, Buenos Aires C1107 AAZ, Argentina;
| | - Mauro Fisberg
- Centro de Excelencia em Nutrição e Dificuldades Alimentaes (CENDA), Instituto Pensi, Fundação José Luiz Egydio Setubal, Hospital Infantil Sabará, São Paulo 01228-200, Brazil;
- Departamento de Pediatria, Universidade Federal de São Paulo, São Paulo 04023-061, Brazil
| | - Lilia Yadira Cortés
- Departamento de Nutrición y Bioquímica, Pontificia Universidad Javeriana, Bogotá 110231, Colombia;
| | | | - Marianella Herrera-Cuenca
- Centro de Estudios del Desarrollo, Universidad Central de Venezuela (CENDES-UCV)/Fundación Bengoa, Caracas 1053, Venezuela;
| | - Attilio Rigotti
- Centro de Nutrición Molecular y Enfermedades Crónicas, Departamento de Nutrición, Diabetes y Metabolismo, Escuela de Medicina, Pontificia Universidad Católica, Santiago 8330024, Chile;
| | - Gerson Ferrari
- Escuela de Ciencias de la Actividad Física, el Deporte y la Salud, Universidad de Santiago de Chile (USACH), Santiago 7500618, Chile;
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Schwartz S, Lucas J, DeLegge MH. Non-alcoholic Steatohepatitis: From Pathophysiology to Clinical Practice. TOUCHREVIEWS IN ENDOCRINOLOGY 2021; 17:112-120. [PMID: 35118457 PMCID: PMC8676103 DOI: 10.17925/ee.2021.17.2.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 02/01/2021] [Indexed: 11/24/2022]
Abstract
Non-alcoholic steatohepatitis (NASH) is becoming a global disease with significant associated comorbidities. To date, there are no commercialized drugs to treat NASH, outside of India; however, there is an abundance of new molecular entities which are in clinical development, some in phase III trials. Many of these trials have created an especially heavy demand for USA-based subjects. Hepatologists currently play a major role in the diagnosis, treatment and clinical-trial enrolment of patients with NASH. However, NASH has a strong metabolic component, with patients often carrying comorbid diseases, such as type 2 diabetes mellitus, obesity, hyperlipidaemia, hypothyroidism and sex steroid disorders. The primary care physician, internist and endocrinologist stand at a pivotal position in the NASH healthcare delivery system, as many of the diseases they commonly encounter are associated with a higher risk of developing NASH. Specialty society practice guidelines are evolving regarding the identification and care of patients with NASH. This review of the literature, and assessment of IQVIA's proprietary patient claims database of diagnosis codes, patient encounters and treatments, substantiates the importance of the primary care provider and endocrinologist in the clinical care and clinical research of patients with NASH.
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Association of increased abdominal adiposity at birth with altered ventral caudate microstructure. Int J Obes (Lond) 2021; 45:2396-2403. [PMID: 34282269 DOI: 10.1038/s41366-021-00905-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 06/17/2021] [Accepted: 07/01/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Neonatal adiposity is associated with a higher risk of obesity and cardiometabolic risk factors in later life. It is however unknown if central food intake regulating networks in the ventral striatum are altered with in-utero abdominal growth, indexed by neonatal adiposity in our current study. We aim to examine the relationship between striatal microstructure and abdominal adipose tissue compartments (AATCs) in Asian neonates from the Growing Up in Singapore Toward healthy Outcomes mother-offspring cohort. STUDY DESIGN About 109 neonates were included in this study. Magnetic resonance imaging (MRI) was performed for the brain and abdominal regions between 5 to 17 days of life. Diffusion-weighted imaging of the brain was performed for the derivation of caudate and putamen fractional anisotropy (FA). Abdominal imaging was performed to quantify AATCs namely superficial subcutaneous adipose tissue (sSAT), deep subcutaneous adipose tissue (dSAT), and internal adipose tissue (IAT). Absolute and percentage adipose tissue of total abdominal volume (TAV) were calculated. RESULTS We showed that AATCs at birth were significantly associated with increased FA in bilateral ventral caudate heads which are part of the ventral striatum (sSAT: βleft = 0.56, p < 0.001; βright = 0.65, p < 0.001, dSAT: βleft = 0.43, p < 0.001; βright = 0.52, p < 0.001, IAT: βleft = 0.30, p = 0.005; βright = 0.32, p = 0.002) in neonates with low birth weights adjusted for gestational age. CONCLUSIONS Our study provides preliminary evidence of a potential relationship between neonatal adiposity and in-utero programming of the ventral striatum, a brain structure that governs feeding behavior.
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Sparks LM, Goodpaster BH, Bergman BC. The Metabolic Significance of Intermuscular Adipose Tissue: Is IMAT a Friend or a Foe to Metabolic Health? Diabetes 2021; 70:2457-2467. [PMID: 34711670 DOI: 10.2337/dbi19-0006] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 08/27/2021] [Indexed: 12/25/2022]
Abstract
Adipose tissues are not homogeneous and show site-specific properties. An elusive and understudied adipose tissue depot, most likely due to its limited accessibility, is the intermuscular adipose tissue (IMAT) depot. Adipose tissue is a pliable organ with the ability to adapt to its physiological context, yet whether that adaptation is harmful or beneficial in the IMAT depot remains to be explored in humans. Potential reasons for IMAT accumulation in humans being deleterious or beneficial include 1) sex and related circulating hormone levels, 2) race and ethnicity, and 3) lifestyle factors (e.g., diet and physical activity level). IMAT quantity per se may not be the driving factor in the etiology of insulin resistance and type 2 diabetes, but rather the quality of the IMAT itself is the true puppeteer. Adipose tissue quality likely influences its secreted factors, which are also likely to influence metabolism of surrounding tissues. The advent of molecular assessments such as transcriptome sequencing (RNAseq), assay for transposase-accessible chromatin using sequencing (ATACseq), and DNA methylation at the single-cell and single-nucleus levels, as well as the potential for ultrasound-guided biopsies specifically for IMAT, will permit more sophisticated investigations of human IMAT and dramatically advance our understanding of this enigmatic adipose tissue.
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Paris MT, Bell KE, Avrutin E, Mourtzakis M. Associations between skeletal muscle echo intensity and thickness in relation to glucose homeostasis in healthy and glucose impaired older males. Exp Gerontol 2021; 154:111547. [PMID: 34506901 DOI: 10.1016/j.exger.2021.111547] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 08/18/2021] [Accepted: 08/30/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND Aging-related changes in muscle composition and mass may predispose older adults to developing insulin resistance. Ultrasound echo intensity and thickness are surrogates of muscle composition and mass, however, their associations with glucose homeostasis are not well established. We examined how muscle echo intensity and thickness correlate with markers of glucose homeostasis in older (≥65 years) males with normal (n = 22) or impaired (n = 10) glucose control. METHODS Echo intensity was measured for the biceps brachii, rectus abdominis, and rectus femoris. Muscle thickness was evaluated for the biceps brachii + brachioradialis, rectus abdominis, and rectus femoris + vastus intermedius. Glucose homeostasis was evaluated using a 2-h oral glucose tolerance test. RESULTS In older males with normal glucose homeostasis, higher echo intensity of the rectus abdominis and rectus femoris was moderately (r = 0.36 to 0.59) associated with 2-h glucose. On the contrary, higher muscle echo intensity of the rectus abdominis, biceps brachii, and rectus femoris was moderately-to-strongly (r = -0.36 to -0.79) associated with indices of better glucose homeostasis in the impaired group. Rectus abdominis muscle thickness was moderately associated (r = 0.36) with better glucose tolerance in the normal glucose homeostasis; however, in the glucose impaired group, muscle thickness was associated with (r = 0.37 to 0.73) with poorer glucose homeostasis. CONCLUSIONS Muscle echo intensity displays divergent associations with glucose homeostasis in older males with normal compared to impaired glucose control. Larger muscle thickness was associated with poorer glucose homeostasis in the glucose impaired group, but rectus abdominis muscle thickness was correlated with better homeostasis in healthy older males.
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Affiliation(s)
- Michael T Paris
- Department of Kinesiology, University of Waterloo, Waterloo, ON, Canada
| | - Kirsten E Bell
- Department of Kinesiology, University of Waterloo, Waterloo, ON, Canada
| | - Egor Avrutin
- Department of Kinesiology, University of Waterloo, Waterloo, ON, Canada
| | - Marina Mourtzakis
- Department of Kinesiology, University of Waterloo, Waterloo, ON, Canada.
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Westgate CSJ, Israelsen IME, Jensen RH, Eftekhari S. Understanding the link between obesity and headache- with focus on migraine and idiopathic intracranial hypertension. J Headache Pain 2021; 22:123. [PMID: 34629054 PMCID: PMC8504002 DOI: 10.1186/s10194-021-01337-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 09/26/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Obesity confers adverse effects to every system in the body including the central nervous system. Obesity is associated with both migraine and idiopathic intracranial hypertension (IIH). The mechanisms underlying the association between obesity and these headache diseases remain unclear. METHODS We conducted a narrative review of the evidence in both humans and rodents, for the putative mechanisms underlying the link between obesity, migraine and IIH. RESULTS Truncal adiposity, a key feature of obesity, is associated with increased migraine morbidity and disability through increased headache severity, frequency and more severe cutaneous allodynia. Obesity may also increase intracranial pressure and could contribute to headache morbidity in migraine and be causative in IIH headache. Weight loss can improve both migraine and IIH headache. Preclinical research highlights that obesity increases the sensitivity of the trigeminovascular system to noxious stimuli including inflammatory stimuli, but the underlying molecular mechanisms remain unelucidated. CONCLUSIONS This review highlights that at the epidemiological and clinical level, obesity increases morbidity in migraine and IIH headache, where weight loss can improve headache morbidity. However, further research is required to understand the molecular underpinnings of obesity related headache in order to generate novel treatments.
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Affiliation(s)
- Connar Stanley James Westgate
- Danish Headache Center, Department of Neurology, Rigshospitalet- Glostrup, Glostrup Research Institute, University of Copenhagen, Nordstjernevej 42, 2600, Glostrup, Denmark
| | - Ida Marchen Egerod Israelsen
- Danish Headache Center, Department of Neurology, Rigshospitalet- Glostrup, Glostrup Research Institute, University of Copenhagen, Nordstjernevej 42, 2600, Glostrup, Denmark
| | - Rigmor Højland Jensen
- Danish Headache Center, Department of Neurology, Rigshospitalet- Glostrup, Glostrup Research Institute, University of Copenhagen, Nordstjernevej 42, 2600, Glostrup, Denmark
| | - Sajedeh Eftekhari
- Danish Headache Center, Department of Neurology, Rigshospitalet- Glostrup, Glostrup Research Institute, University of Copenhagen, Nordstjernevej 42, 2600, Glostrup, Denmark.
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