1
|
Matia-Garcia I, Ocampo-Galeana JA, Muñoz-Valle JF, Soñanez-Organis JG, González RA, Guzmán-Guzmán IP, Marino-Ortega LA, Parra-Rojas I. An Observational Study Suggests That Natural HAdV-36 Infection Decreases Blood Glucose Levels without Affecting Insulin Levels in Obese Young Subjects. Viruses 2024; 16:922. [PMID: 38932214 PMCID: PMC11209432 DOI: 10.3390/v16060922] [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: 04/20/2024] [Revised: 05/30/2024] [Accepted: 05/31/2024] [Indexed: 06/28/2024] Open
Abstract
Human adenovirus-36 (HAdV-36) infection has been linked to obesity, low lipid levels, and improvements in blood glucose levels and insulin sensitivity in animal models and humans, although epidemiological studies remain controversial. Therefore, this study investigated the relationship between HAdV-36 seropositivity and glycemic control in youths. This observational study examined 460 youths (246 with normal weight and 214 obese subjects). All participants underwent assessments for anthropometry, blood pressure, circulating fasting levels of glucose, lipids, insulin, and anti-HAdV-36 antibodies; additionally, the homeostatic model assessment of insulin resistance (HOMA-IR) was calculated. In all, 57.17% of the subjects were HAdV-36 seropositive. Moreover, HAdV-36 seroprevalence was higher in obese subjects compared to their normal weight counterparts (59% vs. 55%). BMI (33.1 vs. 32.3 kg/m2, p = 0.03), and waist circumference (107 vs. 104 cm, p = 0.02), insulin levels (21 vs. 16.3 µU/mL, p = 0.003), and HOMA-IR (4.6 vs. 3.9, p = 0.02) were higher in HAdV-36-positive subjects with obesity compared to seronegative subjects. In the obese group, HAdV-36 seropositivity was associated with a reducing effect in blood glucose levels in a model adjusted for total cholesterol, triglyceride levels, age and sex (β = -10.44, p = 0.014). Furthermore, a statistically significant positive relationship was observed between HAdV-36 seropositivity and insulin levels in the obesity group. These findings suggest that natural HAdV-36 infection improves glycemic control but does not ameliorate hyperinsulinemia in obese subjects.
Collapse
Affiliation(s)
- Inés Matia-Garcia
- Obesity and Diabetes Research Laboratory, Faculty of Biological Chemistry Sciences, Autonomous University of Guerrero, Chilpancingo de los Bravo 39087, Guerrero, Mexico
| | - Jorge Adalberto Ocampo-Galeana
- Obesity and Diabetes Research Laboratory, Faculty of Biological Chemistry Sciences, Autonomous University of Guerrero, Chilpancingo de los Bravo 39087, Guerrero, Mexico
| | - José Francisco Muñoz-Valle
- Research Institute in Biomedical Sciences, University Center for Health Science, University of Guadalajara, Guadalajara 44340, Jalisco, Mexico
| | - José Guadalupe Soñanez-Organis
- Department of Biological and Agricultural Chemistry Sciences, University of Sonora, Campus Navojoa, Navojoa 85880, Sonora, Mexico
| | - Ramón A. González
- Research Center in Cellular Dynamics, Research Institute in Basic and Applied Sciences, Autonomous University of the State of Morelos, Cuernavaca 62209, Morelos, Mexico
| | - Iris Paola Guzmán-Guzmán
- Obesity and Diabetes Research Laboratory, Faculty of Biological Chemistry Sciences, Autonomous University of Guerrero, Chilpancingo de los Bravo 39087, Guerrero, Mexico
| | - Linda Anahi Marino-Ortega
- Obesity and Diabetes Research Laboratory, Faculty of Biological Chemistry Sciences, Autonomous University of Guerrero, Chilpancingo de los Bravo 39087, Guerrero, Mexico
| | - Isela Parra-Rojas
- Obesity and Diabetes Research Laboratory, Faculty of Biological Chemistry Sciences, Autonomous University of Guerrero, Chilpancingo de los Bravo 39087, Guerrero, Mexico
| |
Collapse
|
2
|
Göttig L, Schreiner S. E4orf1: The triple agent of adenovirus - Unraveling its roles in oncogenesis, infectious obesity and immune responses in virus replication and vector therapy. Tumour Virus Res 2024; 17:200277. [PMID: 38428735 PMCID: PMC10937242 DOI: 10.1016/j.tvr.2024.200277] [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: 01/22/2024] [Revised: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 03/03/2024] Open
Abstract
Human Adenoviruses (HAdV) are nearly ubiquitous pathogens comprising numerous sub-types that infect various tissues and organs. Among many encoded proteins that facilitate viral replication and subversion of host cellular processes, the viral E4orf1 protein has emerged as an intriguing yet under-investigated player in the complex interplay between the virus and its host. E4orf1 has gained attention as a metabolism activator and oncogenic agent, while recent research is showing that E4orf1 may play a more important role in modulating cellular pathways such as PI3K-Akt-mTOR, Ras, the immune response and further HAdV replication stages than previously anticipated. In this review, we aim to explore the structure, molecular mechanisms, and biological functions of E4orf1, shedding light on its potentially multifaceted roles during HAdV infection, including metabolic diseases and oncogenesis. Furthermore, we discuss the role of functional E4orf1 in biotechnological applications such as Adenovirus (AdV) vaccine vectors and oncolytic AdV. By dissecting the intricate relationships between HAdV types and E4orf1 proteins, this review provides valuable insights into viral pathogenesis and points to promising areas of future research.
Collapse
Affiliation(s)
- Lilian Göttig
- Institute of Virology, School of Medicine, Technical University of Munich, Germany
| | - Sabrina Schreiner
- Institute of Virology, School of Medicine, Technical University of Munich, Germany; Institute of Virology, Hannover Medical School, Hannover, Germany; Cluster of Excellence RESIST (Resolving Infection Susceptibility; EXC 2155), Hannover, Germany; Institute of Virology, Medical Center - University of Freiburg, Freiburg, Germany.
| |
Collapse
|
3
|
Göttig L, Jummer S, Staehler L, Groitl P, Karimi M, Blanchette P, Kosulin K, Branton PE, Schreiner S. The human adenovirus PI3K-Akt activator E4orf1 is targeted by the tumor suppressor p53. J Virol 2024; 98:e0170123. [PMID: 38451084 PMCID: PMC11019960 DOI: 10.1128/jvi.01701-23] [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: 11/20/2023] [Accepted: 01/13/2024] [Indexed: 03/08/2024] Open
Abstract
Human adenoviruses (HAdV) are classified as DNA tumor viruses due to their potential to mediate oncogenic transformation in non-permissive mammalian cells and certain human stem cells. To achieve transformation, the viral early proteins of the E1 and E4 regions must block apoptosis and activate proliferation: the former predominantly through modulating the cellular tumor suppressor p53 and the latter by activating cellular pro-survival and pro-metabolism protein cascades, such as the phosphoinositide 3-kinase (PI3K-Akt) pathway, which is activated by HAdV E4orf1. Focusing on HAdV-C5, we show that E4orf1 is necessary and sufficient to stimulate Akt activation through phosphorylation in H1299 cells, which is not only hindered but repressed during HAdV-C5 infection with a loss of E4orf1 function in p53-positive A549 cells. Contrary to other research, E4orf1 localized not only in the common, cytoplasmic PI3K-Akt-containing compartment, but also in distinct nuclear aggregates. We identified a novel inhibitory mechanism, where p53 selectively targeted E4orf1 to destabilize it, also stalling E4orf1-dependent Akt phosphorylation. Co-IP and immunofluorescence studies showed that p53 and E4orf1 interact, and since p53 is bound by the HAdV-C5 E3 ubiquitin ligase complex, we also identified E4orf1 as a novel factor interacting with E1B-55K and E4orf6 during infection; overexpression of E4orf1 led to less-efficient E3 ubiquitin ligase-mediated proteasomal degradation of p53. We hypothesize that p53 specifically subverts the pro-survival function of E4orf1-mediated PI3K-Akt activation to protect the cell from metabolic hyper-activation or even transformation.IMPORTANCEHuman adenoviruses (HAdV) are nearly ubiquitous pathogens comprising numerous subtypes that infect various tissues and organs. Among many encoded proteins that facilitate viral replication and subversion of host cellular processes, the viral E4orf1 protein has emerged as an intriguing yet under-investigated player in the complex interplay between the virus and its host. Nonetheless, E4orf1 has gained attention as a metabolism activator and oncogenic agent, while recent research is showing that E4orf1 may play a more important role in modulating the cellular pathways such as phosphoinositide 3-kinase-Akt-mTOR. Our study reveals a novel and general impact of E4orf1 on host mechanisms, providing a novel basis for innovative antiviral strategies in future therapeutic settings. Ongoing investigations of the cellular pathways modulated by HAdV are of great interest, particularly since adenovirus-based vectors actually serve as vaccine or gene vectors. HAdV constitute an ideal model system to analyze the underlying molecular principles of virus-induced tumorigenesis.
Collapse
Affiliation(s)
- Lilian Göttig
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Simone Jummer
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Luisa Staehler
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Peter Groitl
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Maryam Karimi
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Paola Blanchette
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Goodman Cancer Research Center, McGill University, Montreal, Quebec, Canada
| | - Karin Kosulin
- Molecular Microbiology, Children’s Cancer Research Institute, Vienna, Austria
| | - Philip E. Branton
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Goodman Cancer Research Center, McGill University, Montreal, Quebec, Canada
| | - Sabrina Schreiner
- Institute of Virology, School of Medicine, Technical University of Munich, Munich, Germany
- Institute of Virology, Hannover Medical School, Hannover, Germany
- Cluster of Excellence RESIST (Resolving Infection Susceptibility; EXC 2155), Freiburg, Germany
- Institute of Virology, Medical Center—University of Freiburg, Freiburg, Germany
| |
Collapse
|
4
|
Tapia-Rivera JC, Mendoza-Jaramillo HE, González-Villaseñor CO, Ramirez-Flores M, Aguilar-Velazquez JA, López-Quintero A, Pérez-Guerrero EE, Vargas-Rodriguez MDLÁ, Gutiérrez-Hurtado IA, Martínez-López E. Effect of Human Adenovirus 36 on Response to Metformin Monotherapy in Obese Mexican Patients with Type 2 Diabetes: A Prospective Cohort Study. Viruses 2023; 15:1514. [PMID: 37515200 PMCID: PMC10386570 DOI: 10.3390/v15071514] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
Human adenovirus 36 (HAdV-36) has been associated with obesity and changes in glucose and lipid metabolism. The virus has been reported to increase insulin sensitivity and paradoxically promote weight gain. Because of its effects on metabolism, infection with the virus could alter the response to several drugs used to treat type 2 diabetes (DM2), such as metformin. The aim of this study was to test whether HAdV-36 affects the response to metformin in a group of obese patients with DM2. METHODS In a prospective cohort study, 103 obese patients with newly diagnosed DM2 were divided into two groups based on their HAdV-36 seropositivity (+HAdV-36 and -HAdV-36). Weight, glucose, cholesterol, triglycerides, body mass index, body fat percentage, and waist and hip circumference were measured and compared in both groups at baseline and after 45 days of metformin treatment. RESULTS Only glucose was significantly lower in the +HAdV-36 group at baseline, while all other variables were similar between the two study groups. After 45 days of follow-up, it was observed that the effect of metformin did not differ between the groups, but the variables improved significantly after treatment. CONCLUSIONS In this study, we did not find that HAdV-36 had an effect on the response to metformin in obese patients with DM2.
Collapse
Affiliation(s)
- José Carlos Tapia-Rivera
- Departamento de Ciencias Básicas para la Salud, Centro Universitario del Sur, Universidad de Guadalajara, Ciudad Guzmán 49000, Mexico
| | - Héctor Eduardo Mendoza-Jaramillo
- Departamento de Ciencias Básicas para la Salud, Centro Universitario del Sur, Universidad de Guadalajara, Ciudad Guzmán 49000, Mexico
| | | | - Mario Ramirez-Flores
- Centro de Investigaciones Biomédicas, Universidad de Colima, Colima 28040, Mexico
| | - José Alonso Aguilar-Velazquez
- Departamento de Morfología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - Andres López-Quintero
- Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - Edsaúl Emilio Pérez-Guerrero
- Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - María de Los Ángeles Vargas-Rodriguez
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - Itzae Adonai Gutiérrez-Hurtado
- Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| | - Erika Martínez-López
- Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
- Instituto de Nutrigenética y Nutrigenómica Traslacional, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44340, Mexico
| |
Collapse
|
5
|
Tsilingiris D, Vallianou NG, Karampela I, Muscogiuri G, Dalamaga M. Use of adenovirus type-5 vector vaccines in COVID-19: potential implications for metabolic health? Minerva Endocrinol (Torino) 2022; 47:264-269. [PMID: 35621112 DOI: 10.23736/s2724-6507.22.03797-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Dimitrios Tsilingiris
- First Department of Propedeutic Internal Medicine, School of Medicine, Laiko General Hospital, National and Kapodistrian University of Athens, Athens, Greece -
| | - Natalia G Vallianou
- First Department of Internal Medicine, Evangelismos General Hospital, Athens, Greece
| | - Irene Karampela
- Second Department of Critical Care, Medical School, Attikon General University Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Giovanna Muscogiuri
- Unit of Endocrinology, Department of Clinical Medicine and Surgery, School of Medicine, University of Naples Federico II, Naples, Italy.,Unit of Endocrinology, Department of Clinical Medicine and Surgery, School of Medicine, Centro Italiano per la Cura e il Benessere del Patiente con Obesità (CIBO), University of Naples Federico II, Naples, Italy
| | - Maria Dalamaga
- Department of Biological Chemistry, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| |
Collapse
|
6
|
Cancelier ACL, Schuelter-Trevisol F, Trevisol DJ, Atkinson RL. Adenovirus 36 infection and obesity risk: current understanding and future therapeutic strategies. Expert Rev Endocrinol Metab 2022; 17:143-152. [PMID: 35255768 DOI: 10.1080/17446651.2022.2044303] [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: 11/01/2021] [Accepted: 02/16/2022] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Obesity, a multifactorial disease caused by the interaction between genetic characteristics, metabolism, lifestyle, and environmental factors, is a major global health problem and is currently defined as a pandemic phenomenon. This disease is determined by an interaction of several factors, but the imbalance between energy consumption and expenditure seems to be the crucial point. In some cases, there is no linearity between exposure to those factors that cause the onset of obesity. A striking example of the occurrence of obesity despite no obvious risk factors is that of obesity induced by viral infections. The most important of such viruses appears to be human adenovirus 36 (Adv36). AREAS COVERED This review covers the relation between obesity and infection by Adv36 in humans. Also, discussed are the opportunities of prevention or treatment for the effects of Adv36 in human body. EXPERT OPINION The role of Ad36 in the development of obesity has already been established. Future research should focus on the development of vaccines against this agent, drug discovery for infected individuals, and effective therapeutic uses of E4orf1 gene protein for diabetes and other diseases in clinical practice.
Collapse
Affiliation(s)
| | | | - Daisson José Trevisol
- Postgraduate Program in Health Sciences, University of Southern Santa Catarina, Tubarão, Brazil
| | | |
Collapse
|
7
|
Marjani A, Khatami A, Saadati H, Asghari M, Razizadeh MH, Abbasi A, Zarei M, Beikzadeh L, Soleimani A. Association of adenovirus 36 infection and obesity; An updated meta-analysis of community-based studies. Rev Med Virol 2021; 32:e2255. [PMID: 34028108 DOI: 10.1002/rmv.2255] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/12/2021] [Accepted: 05/14/2021] [Indexed: 12/11/2022]
Abstract
As a health problem, obesity has several risk factors; it has been suggested that human adenovirus type 36 (HAdV-36) infections may possibly be associated with obesity. This updated meta-analysis was designed and conducted with an emphasis on articles published from 2015 to 2020. The PubMed, Web of Science, and Scopus databases were searched up to 1 December 2020. Overall, pooled prevalence and odds ratio of antibodies against HAdV-36 in people with obesity and controls was assessed among different ages. Case-control and cohort studies were included in the analysis. The overall prevalence of HAdV-36 infection in obese population was 31% (CI: 0.24%-0.38%) which was 32% in cases and 27% in controls, respectively; a significant association was found between the cases and the controls (OR, 1.84; 95% CI, 1.39-2.43), especially in children younger than 18 years of age (OR, 2.44; 95% CI, 1.85-3.22). A significant association between adenovirus infection and obesity was found, especially in adolescents.
Collapse
Affiliation(s)
- Arezoo Marjani
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Khatami
- Student Research Committee, Iran University of Medical Sciences, Tehran, Iran.,Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hassan Saadati
- Department of Epidemiology and Biostatistics, School of Health, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Milad Asghari
- Department of Microbiology, Faculty of Basic Science, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | | | - Aida Abbasi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Zarei
- John B. Little Center for Radiation Sciences, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Leila Beikzadeh
- Department of Medical Laboratory Sciences, Faculty of Para-Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Alireza Soleimani
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| |
Collapse
|
8
|
Galinsky T, Deter L, Krieg E, Feng HA, Battaglia C, Bell R, Haddock KS, Hilton T, Lynch C, Matz M, Moscatel S, Riley FD, Sampsel D, Shaw S. Safe patient handling and mobility (SPHM) for increasingly bariatric patient populations: Factors related to caregivers' self-reported pain and injury. APPLIED ERGONOMICS 2021; 91:103300. [PMID: 33190057 DOI: 10.1016/j.apergo.2020.103300] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 10/24/2020] [Accepted: 10/29/2020] [Indexed: 06/11/2023]
Abstract
This study was conducted at 5 Veterans Administration Medical Centers (VAMCs). A cross sectional survey was administered to 134 workers who routinely lift and mobilize patients within their workplaces' safe patient handling and mobility (SPHM) programs, which are mandated in all VAMCs. The survey was used to examine a comprehensive list of SPHM and non-SPHM variables, and their associations with self-reported musculoskeletal injury and pain. Previously unstudied variables distinguished between "bariatric" (≥300 lb or 136 kg) and "non-bariatric" (<300 lb or 136 kg) patient handling. Significant findings from stepwise and logistic regression provide targets for workplace improvements, predicting: lower injury odds with more frequently having sufficient time to use equipment, higher back pain odds with more frequent bariatric handling, lower back pain odds with greater ease in following SPHM policies, and lower odds of upper extremity pain with more bariatric equipment, and with higher safety climate ratings.
Collapse
Affiliation(s)
- Traci Galinsky
- National Institute for Occupational Safety and Health (NIOSH), USA.
| | | | - Edward Krieg
- National Institute for Occupational Safety and Health (NIOSH), USA
| | - H Amy Feng
- National Institute for Occupational Safety and Health (NIOSH), USA
| | | | | | | | | | | | - Mary Matz
- Veterans Health Administration, USA; Patient Care Ergonomic Solutions, USA
| | | | | | | | | |
Collapse
|
9
|
da Silva Fernandes J, Schuelter-Trevisol F, Cancelier ACL, Gonçalves e Silva HC, de Sousa DG, Atkinson RL, Trevisol DJ. Adenovirus 36 prevalence and association with human obesity: a systematic review. Int J Obes (Lond) 2021; 45:1342-1356. [PMID: 33753885 PMCID: PMC7983349 DOI: 10.1038/s41366-021-00805-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 02/01/2021] [Accepted: 03/04/2021] [Indexed: 01/31/2023]
Abstract
INTRODUCTION Obesity has numerous etiologies and includes biological factors. Studies have demonstrated that the human adenovirus subtype 36 (Adv36) is an adipogenic agent and causes metabolic alterations. Study results on the prevalence of Adv36 and clinical effects in humans vary substantially. This was a systematic review to summarize the studies on the prevalence of Adv36 infection and its association with human obesity. METHODS A systematic literature review was conducted using the preferred reporting items for systematic reviews and meta-analysis (PRISMA). Observational or experimental studies found in the Medline, Embase, LILACS, Science Direct and SciELO databases that presented results on the prevalence of Adv36 in humans were included. RESULTS Thirty-seven studies were screened. A total of 10,300 adults aged 18-70 years and 4585 children and adolescents aged 3-18 years were assessed. The average prevalence of Adv36 among adults was 22.9%, ranging from 5.5% to 49.8%. Among children and adolescents, the average prevalence of Adv36 was 28.9%, ranging from 7.5% to 73.9%. There was a positive statistical relationship between Adv36 and weight gain, obesity, or metabolic changes in 31 studies. However, in four studies there was no association with obesity, and in one, no association was described. One of the studies showed an inverse correlation, i.e., Adv36 was a protective factor against obesity. CONCLUSION Strong evidence suggested a positive association between viral infection and obesity. However, due to the multi-causality of obesity and heterogeneity of studies, diagnostic tests should be standardized and easily accessible by the population to estimate the overall prevalence of Adv36 infection and its association with obesity.
Collapse
Affiliation(s)
- Jaime da Silva Fernandes
- grid.412297.b0000 0001 0648 9933Postgraduate Program in Health Sciences at University of Southern Santa Catarina (UNISUL), Tubarão, Brazil ,grid.412297.b0000 0001 0648 9933Medical School at University of Southern Santa Catarina (UNISUL), Tubarão, Brazil
| | - Fabiana Schuelter-Trevisol
- grid.412297.b0000 0001 0648 9933Postgraduate Program in Health Sciences at University of Southern Santa Catarina (UNISUL), Tubarão, Brazil ,grid.412297.b0000 0001 0648 9933Medical School at University of Southern Santa Catarina (UNISUL), Tubarão, Brazil ,Clinical Research Center of Hospital Nossa Senhora da Conceição, Tubarão, Santa Catarina Brazil
| | - Ana Carolina Lobor Cancelier
- grid.412297.b0000 0001 0648 9933Postgraduate Program in Health Sciences at University of Southern Santa Catarina (UNISUL), Tubarão, Brazil ,grid.412297.b0000 0001 0648 9933Medical School at University of Southern Santa Catarina (UNISUL), Tubarão, Brazil
| | - Helena Caetano Gonçalves e Silva
- grid.412297.b0000 0001 0648 9933Postgraduate Program in Health Sciences at University of Southern Santa Catarina (UNISUL), Tubarão, Brazil ,grid.412297.b0000 0001 0648 9933Medical School at University of Southern Santa Catarina (UNISUL), Tubarão, Brazil
| | - Daiana Gomes de Sousa
- grid.412297.b0000 0001 0648 9933Medical School at University of Southern Santa Catarina (UNISUL), Tubarão, Brazil
| | - Richard L. Atkinson
- grid.224260.00000 0004 0458 8737Virginia Commonwealth University, School of Medicine, Richmond, VA USA
| | - Daisson José Trevisol
- grid.412297.b0000 0001 0648 9933Postgraduate Program in Health Sciences at University of Southern Santa Catarina (UNISUL), Tubarão, Brazil ,grid.412297.b0000 0001 0648 9933Medical School at University of Southern Santa Catarina (UNISUL), Tubarão, Brazil
| |
Collapse
|
10
|
Dyer A, Frost S, Fisher KD, Seymour LW. The role of cancer metabolism in defining the success of oncolytic viro-immunotherapy. Cytokine Growth Factor Rev 2020; 56:115-123. [PMID: 32921554 DOI: 10.1016/j.cytogfr.2020.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 07/02/2020] [Indexed: 12/19/2022]
Abstract
Oncolytic viruses infect, replicate in, and kill cancer cells selectively without harming normal cells. The rapidly expanding clinical development of oncolytic virotherapy is an exciting interdisciplinary field that provides insights into virology, oncology, and immunotherapy. Recent years have seen greater focus on rational design of cancer-selective viruses together with strategies to exploit their immunostimulatory capabilities, ultimately to develop powerful oncolytic cancer vaccines. However, despite great interest in the field, many important experiments are still conducted under optimum conditions in vitro, with many nutrients present in excess and with cellular stress kept to a minimum. Whilst this provides a convenient platform for cell culture, it bears little relation to the typical conditions found within a tumour in vivo, where cells are often subject to a range of metabolic and environmental stresses. Viral infection and cancer will both lead to production of metabolites that are also not present in media in vitro. Understanding how oncolytic viruses interact with cells exposed to more representative metabolic conditions in vitro represents an under-explored area of study that could provide valuable insight into the intelligent design of superior oncolytic viruses and help bridge the gap between bench and bedside. This review summarises the major metabolic pathways altered in cancer cells, during viral infection and highlights possible targets for future studies.
Collapse
Affiliation(s)
- Arthur Dyer
- Department of Oncology, University of Oxford, Oxford, UK
| | - Sally Frost
- Department of Oncology, University of Oxford, Oxford, UK
| | - Kerry D Fisher
- Department of Oncology, University of Oxford, Oxford, UK
| | - Len W Seymour
- Department of Oncology, University of Oxford, Oxford, UK; Old Road Campus Research Building, Department of Oncology, University of Oxford, OX37DQ, UK.
| |
Collapse
|
11
|
Nikooyeh B, Hollis BW, Neyestani TR. Modulating effect of vitamin D status on serum anti-adenovirus 36 antibody amount in children with obesity: National Food and Nutrition Surveillance. BMC Pediatr 2020; 20:316. [PMID: 32593301 PMCID: PMC7320580 DOI: 10.1186/s12887-020-02216-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 06/22/2020] [Indexed: 12/16/2022] Open
Abstract
Background The association of ADV-36 infection and obesity has been reported in children. The objective of this study was to examine the hypothesis that the association between ADV-36 infection and adiposity may be mediated by sub-optimal vitamin D status of the host. Methods Ninety one apparently healthy children in different weight categories (normal weight: 33, overweight: 33, obesity: 25) aged 5–18 years were randomly selected from the registered population at National Food and Nutrition Surveillance Program (NFNS). The groups were matched based on age and sex. Anthropometric, biochemical and serological assessments were performed. Results The amount of anti-ADV36-Ab increased whereas circulating concentrations of 25(OH) D decreased across BMI categories with higher amounts in children with normal weight than in children with overweight and obesity (31.0 ± 16.4, 22.5 ± 10.5 and 21.9 ± 9.8 nmol/L, respectively, p = 0.004). Logistic regression analysis revealed that for each unit increment of anti-ADV36-Ab, the chance of increase in weight was 8.5 times (OR: 8.5, p = 0.029). Interestingly, when 25(OH) D was introduced into the model, anti-ADV36-Ab was no longer the predictor of weight increment and the chance of increase in weight reduced 5% for each unit increase in 25(OH) D concentration (OR: 0.95, p = 0.012). Conclusion It is suggested that ADV36-induced lipogenesis may be mediated by vitamin D deficiency in children with obesity.
Collapse
Affiliation(s)
- Bahareh Nikooyeh
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bruce W Hollis
- Division of Neonatology, Department of Pediatrics, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Tirang R Neyestani
- Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute and Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
12
|
Lessan N, Saradalekshmi KR, Alkaf B, Majeed M, Barakat MT, Lee ZPL, Atkinson RL. Obesity and Diabetes in an Arab population: Role of Adenovirus 36 Infection. Sci Rep 2020; 10:8107. [PMID: 32415247 PMCID: PMC7229214 DOI: 10.1038/s41598-020-65008-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 04/16/2020] [Indexed: 11/16/2022] Open
Abstract
Prior infection with adenovirus 36 (Adv36) has been associated with increased adiposity, improved insulin sensitivity, and a lower prevalence of diabetes. This study investigated the prevalence of Adv36 seropositivity and its association with obesity and diabetes among adults attending a diabetes centre in the UAE.Participants (N = 973) with different weight and glucose tolerance categories were recruited. Adv36 seropositivity (Adv36 + ) was assessed using ELISA. Differences among groups were analyzed using statistical tests as appropriate to the data. Prevalence of Adv36+ in the study population was 47%, with no significant difference in obese and non-obese subgroups (42.5% vs 49.6% respectively; p=non-significant). Females were more likely to be Adv36+ compared to males (odds ratio 1.78; 95% CI 1.36–2.32, p < 0.001). We found no significant association between Adv36 seropositivity and different BMI categories, or glucose tolerance status. In our population, the effect of Adv36 infection on lipid profile varied between healthy individuals and individuals with obesity. Adv36 infection is more prevalent in the UAE than in other countries but has no association with obesity. Our study found that females were more likely to be Adv36 positive regardless of weight or diabetes status.
Collapse
Affiliation(s)
- Nader Lessan
- Imperial College London Diabetes Centre, Abu Dhabi, UAE.
| | | | - Budour Alkaf
- Imperial College London Diabetes Centre, Abu Dhabi, UAE
| | - Maria Majeed
- Imperial College London Diabetes Centre, Abu Dhabi, UAE
| | | | | | - Richard L Atkinson
- Virginia Commonwealth University, Richmond, VA, USA.,Obetech Obesity Research Center, Richmond, VA, USA
| |
Collapse
|
13
|
Hegde V, Vijayan M, Kumar S, Akheruzzaman M, Sawant N, Dhurandhar NV, Reddy PH. Adenovirus 36 improves glycemic control and markers of Alzheimer's disease pathogenesis. Biochim Biophys Acta Mol Basis Dis 2019; 1865:165531. [PMID: 31398466 DOI: 10.1016/j.bbadis.2019.08.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 07/30/2019] [Accepted: 08/05/2019] [Indexed: 12/18/2022]
Abstract
Alzheimer's disease (AD) is the most prevalent neurodegenerative disorder worldwide. While the causes of AD are unclear, several risk factors have been identified, including impaired glycemic control, which significantly increases the risk of cognitive decline and AD. In vitro and in vivo studies show that human adenovirus 36 (Ad36) improves glycemic control by increasing cellular glucose uptake in cells, experimental animal models and in humans who are naturally exposed to the virus. This study, tested improvement in glycemic control by Ad36 and delay in onset of cognitive decline in APPswe transgenic mice (Tg2576 line), a model of genetic predisposition to impaired glycemic control and AD. Three-month old APPswe mice were divided into Ad36 infected (Ad36) or mock infected (control) groups and baseline glycemic control measured by glucose tolerance test (GTT) prior to infection. Changes in glycemic control were determined 10- and 24-week post infection. Serum insulin was also measured during GTT. Cognition was determined by Y-maze test, while motor coordination and skill acquisition by rotarod test. Glycemic control as determined by GTT showed less deterioration in Ad36 infected mice over time, accompanied by a significant attenuation of cognitive decline. Analysis of brain tissue lysate showed significantly reduced levels of amyloid beta 42 in Ad36 mice relative to control mice. Golgi-Cox staining analysis also revealed reduced dendritic spines and synaptic gene expression in control mice compared to Ad36 infected mice. This proof of concept study shows that in a mouse model of AD, Ad36 improves glycemic control and ameliorates cognitive decline.
Collapse
Affiliation(s)
- V Hegde
- Obesity and Metabolic Health Laboratory, Department of Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USA.
| | - M Vijayan
- Internal Medicine, Cell Biology and Biochemistry, Neuroscience/Pharmacology and Neurology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - S Kumar
- Internal Medicine, Cell Biology and Biochemistry, Neuroscience/Pharmacology and Neurology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Md Akheruzzaman
- Obesity and Metabolic Health Laboratory, Department of Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - N Sawant
- Internal Medicine, Cell Biology and Biochemistry, Neuroscience/Pharmacology and Neurology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - N V Dhurandhar
- Obesity and Metabolic Health Laboratory, Department of Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - P H Reddy
- Internal Medicine, Cell Biology and Biochemistry, Neuroscience/Pharmacology and Neurology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| |
Collapse
|
14
|
Lin WY, Chan CC, Liu YL, Yang AC, Tsai SJ, Kuo PH. Performing different kinds of physical exercise differentially attenuates the genetic effects on obesity measures: Evidence from 18,424 Taiwan Biobank participants. PLoS Genet 2019; 15:e1008277. [PMID: 31369549 PMCID: PMC6675047 DOI: 10.1371/journal.pgen.1008277] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 06/26/2019] [Indexed: 12/17/2022] Open
Abstract
Obesity is a worldwide health problem that is closely linked to many metabolic disorders. Regular physical exercise has been found to attenuate the genetic predisposition to obesity. However, it remains unknown what kinds of exercise can modify the genetic risk of obesity. This study included 18,424 unrelated Han Chinese adults aged 30–70 years who participated in the Taiwan Biobank (TWB). A total of 5 obesity measures were investigated here, including body mass index (BMI), body fat percentage (BFP), waist circumference (WC), hip circumference (HC), and waist-to-hip ratio (WHR). Because there have been no large genome-wide association studies on obesity for Han Chinese, we used the TWB internal weights to construct genetic risk scores (GRSs) for each obesity measure, and then test the significance of GRS-by-exercise interactions. The significance level throughout this work was set at 0.05/550 = 9.1x10-5 because a total of 550 tests were performed. Performing regular exercise was found to attenuate the genetic effects on 4 obesity measures, including BMI, BFP, WC, and HC. Among the 18 kinds of self-reported regular exercise, 6 mitigated the genetic effects on at least one obesity measure. Regular jogging blunted the genetic effects on BMI, BFP, and HC. Mountain climbing, walking, exercise walking, international standard dancing, and a longer practice of yoga also attenuated the genetic effects on BMI. Exercises such as cycling, stretching exercise, swimming, dance dance revolution, and qigong were not found to modify the genetic effects on any obesity measure. Across all 5 obesity measures, regular jogging consistently presented the most significant interactions with GRSs. Our findings show that the genetic effects on obesity measures can be decreased to various extents by performing different kinds of exercise. The benefits of regular physical exercise are more impactful in subjects who are more predisposed to obesity. The complex interplay of genetics and lifestyle makes obesity a challenging issue. Previous studies have found performing regular physical exercise could blunt the genetic effects on body mass index (BMI). However, BMI does not take into account lean body mass or identify central obesity. Moreover, it remains unclear what kinds of exercise could more effectively attenuate the genetic effects on obesity measures. With a sample of 18,424 unrelated Han Chinese adults, we comprehensively investigated gene-exercise interactions on 5 obesity measures: BMI, body fat percentage, waist circumference, hip circumference, and waist-to-hip ratio. Moreover, we tested whether the genetic effects on obesity measures could be modified by any of 18 kinds of self-reported regular exercise. Because no large genome-wide association studies on obesity have been done for Han Chinese, we constructed genetic risk scores with internal weights for analyses. Among these exercises, regular jogging consistently presented the strongest evidence to mitigate the genetic effects on all 5 obesity measures. Moreover, mountain climbing, walking, exercise walking, international standard dancing, and a longer practice of yoga attenuated the genetic effects on BMI. The benefits of regularly performing these 6 kinds of exercise are more impactful in subjects who are more predisposed to obesity.
Collapse
Affiliation(s)
- Wan-Yu Lin
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
- Department of Public Health, College of Public Health, National Taiwan University, Taipei, Taiwan
- * E-mail: (WYL); (PHK)
| | - Chang-Chuan Chan
- Department of Public Health, College of Public Health, National Taiwan University, Taipei, Taiwan
- Institute of Occupational Medicine and Industrial Hygiene, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Yu-Li Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Albert C. Yang
- Division of Psychiatry, National Yang-Ming University, Taipei, Taiwan
- Division of Interdisciplinary Medicine and Biotechnology, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, Massachusetts, United States of America
- Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan
| | - Shih-Jen Tsai
- Division of Psychiatry, National Yang-Ming University, Taipei, Taiwan
- Institute of Brain Science, National Yang-Ming University, Taipei, Taiwan
- Department of Psychiatry, Taipei Veterans General Hospital, Beitou District, Taipei, Taiwan
| | - Po-Hsiu Kuo
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
- Department of Public Health, College of Public Health, National Taiwan University, Taipei, Taiwan
- * E-mail: (WYL); (PHK)
| |
Collapse
|
15
|
Gamage S, Peddibhotla S, Reddy PH, Dhurandhar NV, Hegde V. Improvement in Glycemic Control in Mice of Different Age Groups. Exp Clin Endocrinol Diabetes 2019; 129:519-527. [PMID: 31340394 DOI: 10.1055/a-0961-7804] [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] [Indexed: 10/26/2022]
Abstract
AIMS AND METHODS The declining ability to control blood glucose with advancement of age is an important health risk factor and may lead to insulin resistance, type-2-diabetes and Alzheimer's disease. Adenovirus 36(Ad36) improves glycemic control independent of insulin signaling(insulin sparing effect) as evidenced by cell, animal and observational human studies. This property of Ad36 may be useful in correcting aging-related glucose intolerance and related health conditions. Therefore, we determined the effect of Ad36 on glycemic control in older mice, to identify the age group that best responds to Ad36. Six, 12 or 20-month old C57Bl/6 mice on chow diet were each divided into weight-matched groups(mock-infected or Ad36-infected). Body weight was recorded weekly post infection (p.i.) and fasting glucose measured(week 0, 4, 8 and 20 p.i.). Blood glucose and serum insulin were measured during glucose tolerance test(week 0 and 16 p.i.). At week 20 p.i., animals were sacrificed, blood and tissues collected. RESULTS Mice from all age groups showed improvement in glucose clearance post Ad36 infection, but a more profound effect was observed in 6-month old mice compared with mock-infected mice. Under fed conditions though there was no difference in blood glucose at 20 wk p.i., interestingly, Ad36 reduced serum insulin in age groups old mice, compared with control mice. CONCLUSIONS These findings suggest Ad36 infected animals improve glycemic control and clear post-prandial gluco00000se increase without increasing insulin secretion in an insulin sparing manner. These beneficial effects provide strong evidence for developing Ad36-based approaches as a novel tool to attenuate age associated glucose intolerance.
Collapse
Affiliation(s)
- Suhadinie Gamage
- Department of Nutritional Sciences, Obesity and Metabolic Health Laboratory, Texas Tech University, Lubbock, TX, USA
| | - Swetha Peddibhotla
- Department of Nutritional Sciences, Obesity and Metabolic Health Laboratory, Texas Tech University, Lubbock, TX, USA
| | - P Hemachandra Reddy
- Internal Medicine, Cell Biology and Biochemistry, Neuroscience/Pharmacology and Neurology, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Nikhil V Dhurandhar
- Department of Nutritional Sciences, Obesity and Metabolic Health Laboratory, Texas Tech University, Lubbock, TX, USA
| | - Vijay Hegde
- Department of Nutritional Sciences, Obesity and Metabolic Health Laboratory, Texas Tech University, Lubbock, TX, USA
| |
Collapse
|
16
|
Abstract
PURPOSE OF REVIEW The purpose of this review is to examine the evidence describing adipose tissue as a reservoir for HIV-1 and how this often expansive anatomic compartment contributes to HIV persistence. RECENT FINDINGS Memory CD4 T cells and macrophages, the major host cells for HIV, accumulate in adipose tissue during HIV/SIV infection of humans and rhesus macaques. Whereas HIV and SIV proviral DNA is detectable in CD4 T cells of multiple fat depots in virtually all infected humans and monkeys examined, viral RNA is less frequently detected, and infected macrophages may be less prevalent in adipose tissue. However, based on viral outgrowth assays, adipose-resident CD4 T cells are latently infected with virus that is replication-competent and infectious. Additionally, adipocytes interact with CD4 T cells and macrophages to promote immune cell activation and inflammation which may be supportive for HIV persistence. Antiviral effector cells, such as CD8 T cells and NK/NKT cells, are abundant in adipose tissue during HIV/SIV infection and typically exceed CD4 T cells, whereas B cells are largely absent from adipose tissue of humans and monkeys. Additionally, CD8 T cells in adipose tissue of HIV patients are activated and have a late differentiated phenotype, with unique TCR clonotypes of less diversity relative to blood CD8 T cells. With respect to the distribution of antiretroviral drugs in adipose tissue, data is limited, but there may be class-specific penetration of fat depots. The trafficking of infected immune cells within adipose tissues is a common event during HIV/SIV infection of humans and monkeys, but the virus may be mostly transcriptionally dormant. Viral replication may occur less in adipose tissue compared to other major reservoirs, such as lymphoid tissue, but replication competence and infectiousness of adipose latent virus are comparable to other tissues. Due to the ubiquitous nature of adipose tissue, inflammatory interactions among adipocytes and CD4 T cells and macrophages, and selective distribution of antiretroviral drugs, the sequestration of infected immune cells within fat depots likely represents a major challenge for cure efforts.
Collapse
Affiliation(s)
- Jacob Couturier
- Division of Infectious Diseases, Department of Internal Medicine, The University of Texas Health Science Center at Houston, 6431 Fannin St., MSB 2.112, Houston, TX, 77030, USA
| | - Dorothy E Lewis
- Division of Infectious Diseases, Department of Internal Medicine, The University of Texas Health Science Center at Houston, 6431 Fannin St., MSB 2.112, Houston, TX, 77030, USA.
| |
Collapse
|
17
|
Akheruzzaman M, Hegde V, Dhurandhar NV. Twenty-five years of research about adipogenic adenoviruses: A systematic review. Obes Rev 2019; 20:499-509. [PMID: 30562840 DOI: 10.1111/obr.12808] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/09/2018] [Accepted: 10/13/2018] [Indexed: 12/12/2022]
Abstract
Infectious etiology is implicated in chronic diseases such as gastric ulcer or atherosclerosis. However, "infection" is a recent term in the field of obesity. Since the first report in 1982 of obesity due to infection, several microbes have been linked to obesity. Among the adipogenic microbes, avian adenovirus SMAM-1 and human adenovirus Ad36 have been studied most extensively for the past 25 years. Here, we present a systematic review of literature about SMAM-1 and Ad36. Reports from North America, Europe, and Asia reveal strong evidence that Ad36 causes obesity in animals and paradoxically improves glycemic control, and in vitro data provides mechanistic explanation. Considering that experimental Ad36 infection of humans is unlikely, its causative role in human obesity or glycemic control has not been demonstrated unequivocally. Nonetheless, most, but not all, observational studies in children and adults link Ad36 infection to obesity and improvement in glycemic control. The E4orf1 gene of Ad36 was identified as responsible for better glycemic control. Overall, 25 years have considerably advanced knowledge about the role of infection in obesity. Potential translational benefits include the development of vaccines to prevent Ad36-induced obesity and drug development based on the E4orf1 protein to improve glycemic control.
Collapse
Affiliation(s)
- Md Akheruzzaman
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - Vijay Hegde
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | | |
Collapse
|
18
|
Ileal transcriptome analysis in obese rats induced by high-fat diets and an adenoviral infection. Int J Obes (Lond) 2019; 43:2134-2142. [PMID: 30670846 DOI: 10.1038/s41366-019-0323-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 12/29/2018] [Accepted: 12/31/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND Obesity has become a worldwide epidemic affecting millions of people. Obesity and associated health consequences tend to be complicated by diverse causes and multi-systemic involvement. Previous studies have investigated obesity induced by a single factor, such as a high-fat diet (HF) of typical energy-dense food and infection by an adipogenic virus, such as a widely studied human adenovirus serotype 36 (Ad-36). In this study, we hypothesized and investigated the synergistic effect of two causal factors, HF and Ad-36, in obesity induction. METHODS The 7-week-old Wistar rats (n = 1214/group) were randomly divided into weight-matched groups and induced for obesity with mock-control, HF, Ad-36, or HF + Ad-36 for 8-30 weeks, and compared for obesity phenotype. A global transcriptomic RNA-Seq analysis was used to profile signature gene response pathways in ileal tissues from 8-week control and obese animals during this early phase of obesity induction. RESULTS HF only and particularly co-administration of Ad-36 and HF (HF + Ad-36) induced significant obesity in rats (p < 0.05 or p < 0.005). Compared with either Ad-36 or HF alone, HF + Ad-36 treatment significantly aggravates obesity in rats regarding body weight (n = 12-14/group) and adiposity index (n = 6-7). Genome-wide transcriptomic analyses of intestinal tissues revealed signature genes on an inter-systemic scale, including many genes in the pathways of circadian rhythm and antiviral immunity focusing on IFN signaling. CONCLUSIONS Ad-36 exacerbated the induction of obesity in rats compared with those treated with HF alone. Gene-responsive pathways involved in circadian rhythm and antiviral immunity in ileal tissues were significantly (p < 0.05, and FDR < 0.01) regulated during the early phase of obesity induction. This study provided a co-factorial model for obesity induction and profiled molecular targets for further validation and molecular manipulation.
Collapse
|
19
|
Sapunar J, Fonseca L, Molina V, Ortiz E, Barra MI, Reimer C, Charles M, Schneider C, Ortiz M, Brito R, Manríquez V, Pavez M, Cerda A. Adenovirus 36 seropositivity is related to obesity risk, glycemic control, and leptin levels in Chilean subjects. Int J Obes (Lond) 2019; 44:159-166. [PMID: 30659258 DOI: 10.1038/s41366-019-0321-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/11/2018] [Accepted: 01/04/2019] [Indexed: 01/14/2023]
Abstract
BACKGROUND Adenovirus 36 (Ad-36) has been associated to adiposity in animal and in vitro studies. Ad-36 seropositivity has also been reported to contribute to obesity risk in children and adult populations. We investigated the relationship of Ad-36 serology with obesity and metabolic parameters in a Chilean population. SUBJECTS AND METHODS Clinical and anthropometric data were obtained and blood samples were drawn from 99 lean (BMI: 18.5-24.9 kg/m2) and 151 obese (BMI > 30 kg/m2) subjects. Laboratory tests included lipid profile as well as glucose, insulin, leptin, and adiponectin levels. Ad-36 seropositivity was evaluated in serum samples by enzyme-linked immunosorbent assay. RESULTS Seroprevalence of Ad-36 was higher in the obese group (58%) than in lean controls (34%) demonstrating that individuals previously infected with Ad-36 have higher risk of obesity in the study population (OR: 2.67, 95%CI: 1.58-4.51, p < 0.001). Interestingly, Ad-36 was related to lower concentrations of triglycerides and VLDL cholesterol in lean subjects (p = 0.049) and lower leptin in obese individuals (p = 0.014). Previous Ad-36 infection was also related to lower glycemia, insulinemia, and HOMA-IR (p < 0.05) in obese subjects who were not under antidiabetic drugs. CONCLUSIONS Our results provide evidence of the contribution of previous Ad-36 infection to an increased risk of obesity in adult Chilean population. Ad-36 seropositivity was also associated to lipid profile, glycemic control, and leptin levels in adult Chilean population.
Collapse
Affiliation(s)
- Jorge Sapunar
- Centro de Excelencia en Medicina Traslacional, CEMT-BIOREN, Universidad de La Frontera, Temuco, Chile.,Centro de Investigación en Epidemiología Cardiovascular y Nutricional, EPICYN, Universidad de La Frontera, Temuco, Chile.,Department of Internal Medicine, Universidad de La Frontera, Temuco, Chile
| | - Luis Fonseca
- Centro de Tratamiento de la Obesidad, Clinica Alemana de Temuco, Temuco, Chile
| | - Víctor Molina
- Centro de Tratamiento de la Obesidad, Clinica Alemana de Temuco, Temuco, Chile
| | - Eugenia Ortiz
- Centro de Tratamiento de la Obesidad, Clinica Alemana de Temuco, Temuco, Chile
| | - Maria Ines Barra
- Department of Internal Medicine, Universidad de La Frontera, Temuco, Chile.,Centro de Tratamiento de la Obesidad, Clinica Alemana de Temuco, Temuco, Chile
| | - Camila Reimer
- Department of Internal Medicine, Universidad de La Frontera, Temuco, Chile.,Centro de Tratamiento de la Obesidad, Clinica Alemana de Temuco, Temuco, Chile
| | - Maria Charles
- Centro de Tratamiento de la Obesidad, Clinica Alemana de Temuco, Temuco, Chile
| | - Constance Schneider
- Centro de Tratamiento de la Obesidad, Clinica Alemana de Temuco, Temuco, Chile
| | - Manuel Ortiz
- Centro de Investigación en Epidemiología Cardiovascular y Nutricional, EPICYN, Universidad de La Frontera, Temuco, Chile.,Department of Psychology, Universidad de La Frontera, Temuco, Chile
| | - Roberto Brito
- Centro de Excelencia en Medicina Traslacional, CEMT-BIOREN, Universidad de La Frontera, Temuco, Chile
| | - Víctor Manríquez
- Centro de Excelencia en Medicina Traslacional, CEMT-BIOREN, Universidad de La Frontera, Temuco, Chile
| | - Monica Pavez
- Centro de Excelencia en Medicina Traslacional, CEMT-BIOREN, Universidad de La Frontera, Temuco, Chile
| | - Alvaro Cerda
- Centro de Excelencia en Medicina Traslacional, CEMT-BIOREN, Universidad de La Frontera, Temuco, Chile. .,Centro de Investigación en Epidemiología Cardiovascular y Nutricional, EPICYN, Universidad de La Frontera, Temuco, Chile. .,Department of Basic Sciences, Universidad de La Frontera, Temuco, Chile.
| |
Collapse
|
20
|
Molloy CT, Adkins LJ, Griffin C, Singer K, Weinberg JB. Mouse adenovirus type 1 infection of adipose tissue. Virus Res 2017; 244:90-98. [PMID: 29141203 DOI: 10.1016/j.virusres.2017.11.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 11/10/2017] [Accepted: 11/10/2017] [Indexed: 01/13/2023]
Abstract
Human adenovirus (HAdV) type 36 seropositivity has been linked to obesity in humans. That link is supported by a small number of studies using HAdV-36 infection of animals that are not natural hosts for HAdVs. In this study, we infected mice with mouse adenovirus type 1 (MAV-1), a mouse pathogen, to determine whether MAV-1 infected adipose tissue and was associated with adipose tissue inflammation and obesity. We detected MAV-1 in adipose tissue during acute MAV-1 infection, but we did not detect virus-induced increases in adipose tissue cytokine expression or histological evidence of adipose tissue inflammation during acute infection. MAV-1 did not persist in adipose tissue at later times, and we did not detect long-term adipose inflammation, increased adipose tissue mass, or body weight in infected mice. Our data indicate that MAV-1 is not associated with obesity in infected mice.
Collapse
Affiliation(s)
- Caitlyn T Molloy
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI, United States
| | - Laura J Adkins
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI, United States
| | - Cameron Griffin
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI, United States
| | - Kanakadurga Singer
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI, United States
| | - Jason B Weinberg
- Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, MI, United States; Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, United States.
| |
Collapse
|
21
|
Abstract
PURPOSE OF REVIEW Obesity is a multifactorial disease that is now endemic throughout most of the world. Although addressing proximate causes of obesity (excess energy intake and reduced energy expenditure) have been longstanding global health priorities, the problem has continued to worsen at the global level. RECENT FINDINGS Numerous microbial agents cause obesity in various experimental models-a phenomena known as infectobesity. Several of the same agents alter metabolic function in human cells and are associated with human obesity or metabolic dysfunction in humans. We address the evidence for a role in the genesis of obesity for viral agents in five broad categories: adenoviridae, herpesviridae, phages, transmissible spongiform encephalopathies (slow virus), and other encephalitides and hepatitides. Despite the importance of this topic area, there are many persistent knowledge gaps that need to be resolved. We discuss factors motivating further research and recommend that future infectobesity investigation should be more comprehensive, leveraged, interventional, and patient-centered.
Collapse
Affiliation(s)
- Jameson D Voss
- United States Air Force School of Aerospace Medicine, Epidemiology Consult Service Division, 2510 Fifth Street, Building 840, Wright-Patterson AFB, OH, 45433, USA
| | - Nikhil V Dhurandhar
- Department of Nutritional Sciences, Texas Tech University, Box 41270, Lubbock, TX, 79409-1240, USA.
| |
Collapse
|
22
|
McMurphy TB, Huang W, Xiao R, Liu X, Dhurandhar NV, Cao L. Hepatic Expression of Adenovirus 36 E4ORF1 Improves Glycemic Control and Promotes Glucose Metabolism Through AKT Activation. Diabetes 2017; 66:358-371. [PMID: 27903748 PMCID: PMC5248996 DOI: 10.2337/db16-0876] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 11/21/2016] [Indexed: 02/07/2023]
Abstract
Considering that impaired proximal insulin signaling is linked with diabetes, approaches that enhance glucose disposal independent of insulin signaling are attractive. In vitro data indicate that the E4ORF1 peptide derived from human adenovirus 36 (Ad36) interacts with cells from adipose tissue, skeletal muscle, and liver to enhance glucose disposal, independent of proximal insulin signaling. Adipocyte-specific expression of Ad36E4ORF1 improves hyperglycemia in mice. To determine the hepatic interaction of Ad36E4ORF1 in enhancing glycemic control, we expressed E4ORF1 of Ad36 or Ad5 or fluorescent tag alone by using recombinant adeno-associated viral vector in the liver of three mouse models. In db/db or diet-induced obesity (DIO) mice, hepatic expression of Ad36E4ORF1 but not Ad5E4ORF1 robustly improved glycemic control. In normoglycemic wild-type mice, hepatic expression of Ad36E4ORF1 lowered nonfasting blood glucose at a high dose of expression. Of note, Ad36E4ORF1 significantly reduced insulin levels in db/db and DIO mice. The improvement in glycemic control was observed without stimulation of the proximal insulin signaling pathway. Collectively, these data indicate that Ad36E4ORF1 is not a typical sensitizer, mimetic, or secretagogue of insulin. Instead, it may have insulin-sparing action, which seems to reduce the need for insulin and, hence, to reduce insulin levels.
Collapse
Affiliation(s)
- Travis B McMurphy
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH
- The Comprehensive Cancer Center, Ohio State University, Columbus, OH
| | - Wei Huang
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH
- The Comprehensive Cancer Center, Ohio State University, Columbus, OH
| | - Run Xiao
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH
- The Comprehensive Cancer Center, Ohio State University, Columbus, OH
| | - Xianglan Liu
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH
- The Comprehensive Cancer Center, Ohio State University, Columbus, OH
| | | | - Lei Cao
- Department of Cancer Biology and Genetics, Ohio State University, Columbus, OH
- The Comprehensive Cancer Center, Ohio State University, Columbus, OH
| |
Collapse
|
23
|
Chakraborty S, Bhattacharyya R, Banerjee D. Infections: A Possible Risk Factor for Type 2 Diabetes. Adv Clin Chem 2017; 80:227-251. [PMID: 28431641 DOI: 10.1016/bs.acc.2016.11.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Diabetes mellitus is one of the biggest challenges to human health globally, with an estimated 95% of the global diabetic population having type 2 diabetes. Classical causes for type 2 diabetes, such as genetics and obesity, do not account for the high incidence of the disease. Recent data suggest that infections may precipitate insulin resistance via multiple mechanisms, such as the proinflammatory cytokine response, the acute-phase response, and the alteration of the nutrient status. Even pathogen products, such as lipopolysaccharide and peptidoglycans, can be diabetogenic. Therefore, we argue that infections that are known to contribute to insulin resistance should be considered as risk factors for type 2 diabetes.
Collapse
Affiliation(s)
- Surajit Chakraborty
- Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | | | - Dibyajyoti Banerjee
- Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India.
| |
Collapse
|
24
|
Chappell CL, Dickerson M, Day RS, Dubuisson O, Dhurandhar NV. Adenovirus 36 antibody detection: Improving the standard serum neutralization assay. J Virol Methods 2016; 239:69-74. [PMID: 27825952 DOI: 10.1016/j.jviromet.2016.10.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 10/30/2016] [Indexed: 01/18/2023]
Abstract
Adenovirus 36 (AdV36) causes weight gain in animal models, including non-human primates. In humans, AdV36-neutralizing antibodies are associated with adiposity; however, longitudinal studies in large populations are needed to clarify AdV36's contribution. The current gold standard for detection of AdV36-specific antibody is the serum neutralization assay (SNA), which requires long incubation times and highly trained personnel. The standard SNA was modified using an immunocytochemical (ICC) approach, which allows for a more rapid and objective assessment of AdV36 antibodies. Using the ICC assay, virus-infected cells were detected as early as day 1 (D1) and by D5 were detected in 100% of microtiter wells versus 20.3% of wells detected by observing the cytopathic effect. Further, human sera tested with the ICC assay at D5 had a sensitivity and specificity of 80.0% and 95.7%, respectively, when compared to the standard SNA read at D11. Thus, the ICC assay decreased assay incubation time, provided a more objective and easily interpreted assessment, and had a high degree of sensitivity and specificity in determining serological status. The more rapid and objective ICC method will make large population studies feasible, improve comparability among laboratories, and contribute to understanding the role of AdV36 in obesity.
Collapse
Affiliation(s)
- Cynthia L Chappell
- Center for Infectious Diseases, The University of Texas School of Public Health, Houston, TX, United States; Department of Epidemiology, Human Genetics and Environmental Sciences, The University of Texas School of Public Health, Houston, TX, United States.
| | - Mary Dickerson
- Comparative Laboratory Animal Medicine Center, The University of Texas Health Science Center, Houston, TX, United States.
| | - R Sue Day
- Michael & Susan Dell Center for Healthy Living, The University of Texas School of Public Health, Houston, TX, United States; Department of Epidemiology, Human Genetics and Environmental Sciences, The University of Texas School of Public Health, Houston, TX, United States.
| | - Olga Dubuisson
- Infections and Obesity Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United States.
| | - Nikhil V Dhurandhar
- Infections and Obesity Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United States.
| |
Collapse
|
25
|
Abstract
Over the last two decades, the prevalence of obesity has increased rapidly. While it is intuitively appealing to believe that the causes of obesity are manifestly related to excess dietary intake, combined with a reduced expenditure of energy via a decrease in physical activity, it is also been noted that the evidence for these as the sole causes of the obesity epidemic is incomplete. This has led to the search for other causes of obesity, particularly those which stem from the environment we live in. This review will explore two putative causes of obesity: infections and environmental pollutants. It will focus on the key human infection associated with obesity-human adenovirus 36 (Ad36) and will discuss several environmental pollutants which have been postulated to be involved in the development of obesity: bisphenol A, phthalates and persistent organic pollutants. For each of these, the epidemiology and biological mechanisms underpinning the association of these agents with obesity will be reviewed.
Collapse
Affiliation(s)
- Lili Huo
- Department of Endocrinology, Beijing Jishuitan Hospital, Beijing, China
| | - Jasmine Lyons
- School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
- Department of Clinical Diabetes and Epidemiology, Baker IDI Heart and Diabetes Institute, Level 4, 99 Commercial Road, Melbourne, Victoria, 3004, Australia
| | - Dianna J Magliano
- Department of Clinical Diabetes and Epidemiology, Baker IDI Heart and Diabetes Institute, Level 4, 99 Commercial Road, Melbourne, Victoria, 3004, Australia.
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, 3004, Victoria, Australia.
| |
Collapse
|
26
|
Human adenovirus Ad36 and its E4orf1 gene enhance cellular glucose uptake even in the presence of inflammatory cytokines. Biochimie 2016; 124:3-10. [DOI: 10.1016/j.biochi.2014.11.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 11/09/2014] [Indexed: 01/06/2023]
|
27
|
Abstract
Obesity, which causes some cancer types and other diseases, is not only a global public health problem, but also a factor that affects country's economy. Endocrinal, environmental, neuronal and genetic factors have important roles on the etiology of obesity. When the possibility that SMAM‐1 animal virus could have a relationship with obesity was observed, obesity studies focused on human adenoviruses. Adenovirus‐36 was first isolated in 1978 and was the first human adenovirus to be tested in terms of infectobesity. Both in vivo and in vitro studies proved the strong relationship between adenovirus‐36 presence and obesity. Therefore, a large-scale study incorporating various ethnicities and age groups is required to investigate the worldwide epidemic of obesity and its links with viruses.
Collapse
Affiliation(s)
- Karamese Murat
- Faculty of Medicine, Department of Medical Microbiology, Kafkas University, 36100 Kars, Turkey
| | - Altoparlak Ulku
- Faculty of Medicine, Department of Medical Microbiology, Ataturk University, 25240 Erzurum, Turkey
| |
Collapse
|
28
|
Hegde V, Na HN, Dubuisson O, Burke SJ, Collier JJ, Burk D, Mendoza T, Dhurandhar NV. An adenovirus-derived protein: A novel candidate for anti-diabetic drug development. Biochimie 2016; 121:140-50. [PMID: 26700141 PMCID: PMC5125614 DOI: 10.1016/j.biochi.2015.12.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 12/08/2015] [Indexed: 01/04/2023]
Abstract
AIMS Exposure to human adenovirus Ad36 is causatively and correlatively linked with better glycemic control in animals and humans, respectively. Although the anti-hyperglycemic property of Ad36 may offer some therapeutic potential, it is impractical to use an infectious agent for therapeutic benefit. Cell-based studies identified that Ad36 enhances cellular glucose disposal via its E4orf1 protein. Ability to improve glycemic control in vivo is a critical prerequisite for further investigating the therapeutic potential of E4orf1. Therefore, the aim of this study was to determine the ability of E4orf1 to improve glycemic control independent of insulin despite high fat diet. MATERIALS & METHODS 8-9wk old male C57BL/6J mice fed a high-fat diet (60% kcal) were injected with a retrovirus plasmid expressing E4orf1, or a null vector (Control). Glycemic control was determined by glucose and insulin tolerance test. Islet cell size, amount of insulin and glucagon were determined in formalin-fixed pancreas. Rat insulinoma cell line (832/13) was infected with E4orf1 or control to determine changes in glucose stimulated insulin secretion. Protein from flash frozen adipose tissue depots, liver and muscle was used to determine molecular signaling by western blotting. RESULTS In multiple experiments, retrovirus-mediated E4orf1 expression in C57BL/6J mice significantly and reproducibly improved glucose excursion following a glucose load despite a high fat diet (60% energy). Importantly, E4orf1 improved glucose clearance without increasing insulin sensitivity, production or secretion, underscoring its insulin-independent effect. E4orf1 modulated molecular signaling in mice tissue, which included greater protein abundance of adiponectin, p-AKT and Glucose transporter Glu4. CONCLUSIONS This study provides the proof of concept for translational development of E4orf1 as a potential anti-diabetic agent. High fat intake and impaired insulin signaling are often associated with obesity, diabetes and insulin resistance. Hence, the ability of E4orf1 to improve glycemic control despite high fat diet and independent of insulin, is particularly attractive.
Collapse
Affiliation(s)
- Vijay Hegde
- Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA
| | - Ha-Na Na
- Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA
| | - Olga Dubuisson
- Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA
| | - Susan J Burke
- Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA
| | - J Jason Collier
- Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA
| | - David Burk
- Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA
| | - Tamra Mendoza
- Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA
| | | |
Collapse
|
29
|
Dhurandhar NV, Bailey D, Thomas D. Interaction of obesity and infections. Obes Rev 2015; 16:1017-29. [PMID: 26354800 DOI: 10.1111/obr.12320] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 07/20/2015] [Accepted: 08/03/2015] [Indexed: 12/11/2022]
Abstract
There is evidence that certain infections may induce obesity. Obese persons may also have more severe infections and have compromised response to therapies. The objective of this study is to review the available literature identifying infections that potentially contribute to greater body mass index (BMI) and differential responses of overweight and obese persons to infections. A systematic literature review of human studies examining associations between infections and weight gain, differential susceptibility, severity, and response to prevention and treatment of infection according to BMI status (January 1980-July 2014) was conducted. Three hundred and forty-three studies were eligible for inclusion. Evidence indicated that viral infection by human adenovirus Ad36 and antibiotic eradication of Helicobacter pylori were followed by weight gain. People who were overweight or obese had higher susceptibility to developing post-surgical infections, H1N1 influenza and periodontal disease. More severe infections tended to be present in people with a larger BMI. People with a higher BMI had a reduced response to vaccinations and antimicrobial drugs. Higher doses of antibiotics were more effective in obese patients. Infections may influence BMI, and BMI status may influence response to certain infections, as well as to preventive and treatment measures. These observations have potential clinical implications.
Collapse
Affiliation(s)
- N V Dhurandhar
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - D Bailey
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX, USA
| | - D Thomas
- Center for Quantitative Obesity Research, Department of Mathematical Sciences, Montclair State University, Montclair, NJ, USA
| |
Collapse
|
30
|
Xu MY, Cao B, Wang DF, Guo JH, Chen KL, Shi M, Yin J, Lu QB. Human Adenovirus 36 Infection Increased the Risk of Obesity: A Meta-Analysis Update. Medicine (Baltimore) 2015; 94:e2357. [PMID: 26705235 PMCID: PMC4698001 DOI: 10.1097/md.0000000000002357] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Human adenovirus 36 (HAdV-36), as the key pathogen, was supposed and discussed to be associated with obesity. We searched the references on the association between HAdV-36 infection and obesity with the different epidemiological methods, to explore the relationship with a larger sample size by meta-analysis and compare the differences of epidemiological methods and population subsets by the subgroup analyses.We conducted literature search on the association between HAdV-36 infections and obesity in English or Chinese published up to July 1, 2015. The primary outcome was the HAdV-36 infection rate in the obese and lean groups; the secondary outcomes were the BMI level and BMI z-score in the HAdV-36 positive and negative groups. The pooled odds ratio (OR) was calculated for the primary outcome; the standardized mean differences (SMDs) were calculated for the secondary and third outcomes. Prediction interval (PI) was graphically presented in the forest plot of the random effect meta-analyses. Metaregression analysis and subgroup analysis were performed.Finally 24 references with 10,191 study subjects were included in the meta-analysis. The obesity subjects were more likely to be infected with HAdV-36 compared to the lean controls (OR = 2.00; 95%CI: 1.46, 2.74; PI: 0.59, 6.76; P < 0.001) with a high heterogeneity (I = 80.1%; P < 0.001) estimated by the random effect model. Subgroup analysis demonstrated that the pooled OR of HAdV-36 infection for obesity were 1.77 (95%CI: 1.19, 2.63; PI: 0.44, 7.03; P = 0.005) and 2.26 (95%CI: 1.67, 3.07; PI: 1.45, 3.54; P < 0.001) in the adults and children, respectively. Compared to the HAdV-36 negative subjects, the SMD of BMI was 0.28 (95% CI: 0.08, 0.47; PI: -0.53, 1.08; P = 0.006) in the HAdV-36 positive subjects with a high heterogeneity (I = 86.5%; P < 0.001). The BMI z-score in the children with HAdV-36 infection was higher than those without HAdV-36 infection (SMD = 0.19; 95%CI: -0.31, 0.70; PI: -2.10, 2.49), which had no significantly statistical difference (P = 0.453).HAdV-36 infection increased the risk of obesity. HAdV-36 also increased the risk of weight gain in adults, which was not observed in children.
Collapse
Affiliation(s)
- Mei-Yan Xu
- From the Department of Nutrition, Aerospace Center Hospital (M-YX, JY); School of Public Health, Peking University (BC, D-FW, Q-BL); Department of Ultrasound (J-HG); Department of Respiratory, Aerospace Center Hospital (K-LC); and Department of Clinical Nutrition, China-Japan Friendship Hospital, Beijing, P.R. China (MS)
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Voss JD, Atkinson RL, Dhurandhar NV. Role of adenoviruses in obesity. Rev Med Virol 2015; 25:379-87. [PMID: 26352001 DOI: 10.1002/rmv.1852] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 07/13/2015] [Accepted: 07/15/2015] [Indexed: 12/30/2022]
Abstract
UNLABELLED Five human adenovirus subtypes, Ad5, Ad9, Ad31, Ad36, and Ad37, and a non-human adenovirus, SMAM1, are linked to increased adiposity in vitro or in vivo. Experimental infection with Ad5, Ad36, and Ad37 produced excess adiposity or weight gain in animals. Ad9 and Ad31 increase fat storage in tissue culture but are not associated with animal or human obesity. Ad36 is the most extensively studied adipogenic adenovirus and is correlated with some measure of overweight/obesity in humans from multiple countries. The correlation is strongest and most consistent in children, but some studies have been negative in both children and adults. About 30% of overweight/obese children and adults and about 15-20% of lean individuals have Ad36 antibodies in epidemiologic studies. The mechanisms of action of Ad36 are due to the early gene 4, open reading frame 1 (E4-ORF1). Blocking E4-ORF1 with siRNA prevents the effects of Ad36, and transfection of lentivirus with E4-ORF1 reproduces the Ad36 effects. Increased adiposity is caused by stimulation of at least three pathways by Ad36. Cell membrane glucose receptors are increased via the Ras pathway, leading to increased intracellular glucose. Fatty acid synthase is increased, which converts the glucose to fatty acids. Finally, peroxisome proliferator-activated receptor-γ is increased, resulting in differentiation of adult stem cells into adipocytes. CONCLUSIONS several adenoviruses increase adiposity in animals and are associated with obesity in humans. There are critical gaps in the literature needing further investigation including evaluation of other adenovirus subtypes and better research designs to improve the strength of causal inferences.
Collapse
Affiliation(s)
- Jameson D Voss
- Epidemiology Consult Division, United States Air Force School of Aerospace Medicine, Wright-Patterson AFB, OH, USA
| | - Richard L Atkinson
- Virginia Obesity Research Institute, Richmond, VA, USA.,Virginia Commonwealth University, Richmond, VA, USA
| | | |
Collapse
|
32
|
Adenovirus 36 and Obesity: An Overview. Viruses 2015; 7:3719-40. [PMID: 26184280 PMCID: PMC4517116 DOI: 10.3390/v7072787] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 06/16/2015] [Accepted: 06/30/2015] [Indexed: 02/07/2023] Open
Abstract
There is an epidemic of obesity starting about 1980 in both developed and undeveloped countries definitely associated with multiple etiologies. About 670 million people worldwide are obese. The incidence of obesity has increased in all age groups, including children. Obesity causes numerous diseases and the interaction between genetic, metabolic, social, cultural and environmental factors are possible cofactors for the development of obesity. Evidence emerging over the last 20 years supports the hypothesis that viral infections may be associated with obesity in animals and humans. The most widely studied infectious agent possibly linked to obesity is adenovirus 36 (Adv36). Adv36 causes obesity in animals. In humans, Adv36 associates with obesity both in adults and children and the prevalence of Adv36 increases in relation to the body mass index. In vivo and in vitro studies have shown that the viral E4orf1 protein (early region 4 open reading frame 1, Adv) mediates the Adv36 effect including its adipogenic potential. The Adv36 infection should therefore be considered as a possible risk factor for obesity and could be a potential new therapeutic target in addition to an original way to understand the worldwide rise of the epidemic of obesity. Here, the data indicating a possible link between viral infection and obesity with a particular emphasis to the Adv36 will be reviewed.
Collapse
|
33
|
Geisinger ML, Holmes CM, Geurs NC, Reddy MS. Does Non-Surgical Periodontal Therapy in Overweight and Obesity Result in a Change in Body Mass Index? A Review of Current Evidence. Clin Adv Periodontics 2015; 5:146-150. [DOI: 10.1902/cap.2013.130063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 09/09/2013] [Indexed: 11/13/2022]
|
34
|
Dubuisson O, Day RS, Dhurandhar NV. Accurate identification of neutralizing antibodies to adenovirus Ad36, -a putative contributor of obesity in humans. J Diabetes Complications 2015; 29:83-7. [PMID: 25312598 DOI: 10.1016/j.jdiacomp.2014.09.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 09/04/2014] [Accepted: 09/06/2014] [Indexed: 12/31/2022]
Abstract
BACKGROUND In children and adults, human adenovirus serotype 36 (Ad36) is linked with increased adiposity, and important metabolic alterations. Since this property is not shared by many other human adenovirus serotypes, it is imperative to specifically identify exposure to Ad36. Although serum neutralization assay (SNA) is the gold standard to specifically detect neutralizing antibodies (NA) to Ad36, it requires 2-weeks to complete and considerable training to interpret the results. Whereas, an enzyme-immuno assay (EIA) may provide a quicker and objective determination. OBJECTIVES Evaluate the accuracy of commercially available EIA kits to detect NA to Ad36. Modify SNA to reduce time and increase objectivity. STUDY DESIGN Sera of 15 seropositive or 16 seronegative subjects confirmed by SNA were used to test: 1) reproducibility of SNA to detect Ad36 exposure, by repeating assays twice; 2) an EIA that detects antibodies to all human adenovirus serotypes (NS-EIA) (Abcam-108705); 3) an EIA supposedly specific for Ad36 antibody (Ad36-EIA) (MyBioSource,#MBS705802), and 4) the concordance of SNA with a novel combination of SNA and immune-staining (SN-IS) kit (Cell BioLabs,#VPK-111). RESULTS The SNA showed exact reproducibility. NS-EIA detected adenovirus antibodies in 94% samples, confirming the non-specificity of the assay for Ad36 serotype. All seronegative samples (as determined by SNA) were false positive by Ad36-EIA. In 97% samples, SN-IS showed fidelity with Ad36-antibody status as determined by SNA. CONCLUSIONS The available EIA kits are not specific for detecting NA to Ad36. The modified SNA with immune-staining reduces assay time and increases accuracy of detecting by reducing subjectivity.
Collapse
Affiliation(s)
- Olga Dubuisson
- Infections and Obesity Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA 70808 USA
| | - Rena Sue Day
- Michael & Susan Dell Center for Healthy Living The University of Texas School of Public Health, Houston, TX 77030 USA
| | - Nikhil V Dhurandhar
- Infections and Obesity Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA 70808 USA.
| |
Collapse
|
35
|
Adenovirus 36 attenuates weight loss from exercise but improves glycemic control by increasing mitochondrial activity in the liver. PLoS One 2014; 9:e114534. [PMID: 25479564 PMCID: PMC4257667 DOI: 10.1371/journal.pone.0114534] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Accepted: 11/10/2014] [Indexed: 12/17/2022] Open
Abstract
Human adenovirus type 36 (Ad36) as an obesity agent induces adiposity by increasing glucose uptake and promoting chronic inflammation in fat tissues; in contrast, exercise reduces total body fat and inflammation. Our objective was to determine the association between Ad36 and the effects of exercise on inflammation and glycemic control. In the human trials (n = 54), Korean children (aged 12–14 years) exercised for 60 min on three occasions each week for 2 months. We compared the body mass index (BMI) Z-scores before and after exercise. C57BL/6 mice were infected with Ad36 and Ad2 as a control, and these mice exercised for 12 weeks postinfection. After the exercise period, we determined the serum parameters and assessed the presence of inflammation and the mitochondrial function in the organs. Ad36-seropositive children who were subjected to a supervised exercise regimen had high BMI Z-scores whereas Ad36-seronegative children had lower scores. Similarly, Ad36-infected mice were resistant to weight loss and exhibited chronic inflammation of their adipose tissues despite frequent exercise. However, Ad36 combined with exercise reduced the levels of serum glucose, nonesterified fatty acids, total cholesterol, and insulin in virus-infected mice. Interestingly, virus infection increased the mitochondrial function in the liver, as demonstrated by the numbers of mitochondria, cytochrome c oxidase activity, and transcription of key mitochondrial genes. Therefore Ad36 counteracts the weight-loss effect of exercise and maintains the chronic inflammatory state, but glycemic control is improved by exercise synergistically because of increased mitochondrial activity in the liver.
Collapse
|
36
|
Almgren M, Atkinson RL, Hilding A, He J, Brismar K, Schalling M, Ostenson CG, Lavebratt C. Human adenovirus-36 is uncommon in type 2 diabetes and is associated with increased insulin sensitivity in adults in Sweden. Ann Med 2014; 46:539-46. [PMID: 25045929 DOI: 10.3109/07853890.2014.935469] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Human adenovirus-36 (Adv36) increases adiposity, but also upregulates distal insulin signaling in vitro in human adipose and muscle tissue and in vivo in the rodent independently of adiposity. Accordingly, healthy adults and children with antibodies against Adv36 had increased insulin sensitivity and reduced hepatic lipid accumulation. We hypothesized that Adv36 infection would be less frequent in individuals with type 2 diabetes or impaired glycemic control. METHODS Presence of antibodies against Adv36 was analyzed for association to type 2 diabetes or impaired glycemic control in a two-wave population-based sample of well-characterized adults (n = 1734). Indices of impaired glycemic control included oral glucose tolerance, and circulating fasting levels of glucose, insulin, and insulin-like growth factor binding protein-1 (IGFBP-1). RESULTS Adv36 seropositivity was more common in those with normal glucose tolerance (NGT) than in those with diabetes (females: OR 17.2, 95% CI 4.0-74.3; males: OR 3.5, 95% CI 1.8-6.7). Also, females with NGT had higher frequency of Adv36 seropositivity than females with prediabetes (impaired glucose tolerance and/or impaired fasting glucose; OR 1.8, 95% CI 1.1-3.1). Within the female prediabetes group Adv36 seropositivity was associated with higher insulin sensitivity reflected by reduced HOMA-IR and increased IGFBP-1. CONCLUSION Adv36 infection is associated with lower occurrence of type 2 diabetes and better insulin sensitivity in adults, particularly among females.
Collapse
Affiliation(s)
- Malin Almgren
- Department of Molecular Medicine and Surgery, Karolinska Institutet , Stockholm , Sweden
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Dhurandhar NV, Dhurandhar EJ, Ingram DK, Vaughan K, Mattison JA. Natural infection of human adenovirus 36 in rhesus monkeys is associated with a reduction in fasting glucose 36. J Diabetes 2014; 6:614-6. [PMID: 24909894 PMCID: PMC4208943 DOI: 10.1111/1753-0407.12178] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 03/26/2014] [Accepted: 06/01/2014] [Indexed: 12/21/2022] Open
Affiliation(s)
- Nikhil V. Dhurandhar
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808
| | | | - Donald K. Ingram
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808
| | - Kelli Vaughan
- Translational Gerontology Branch, National Institute on Aging, NIH, Baltimore, MD 21224
- SoBran, Inc., Burtonsville, MD 20866, USA
| | - Julie A. Mattison
- Translational Gerontology Branch, National Institute on Aging, NIH, Baltimore, MD 21224
| |
Collapse
|
38
|
Trovato FM, Catalano D, Garozzo A, Martines GF, Pirri C, Trovato GM. ADV36 adipogenic adenovirus in human liver disease. World J Gastroenterol 2014; 20:14706-14716. [PMID: 25356033 PMCID: PMC4209536 DOI: 10.3748/wjg.v20.i40.14706] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 04/03/2014] [Accepted: 06/26/2014] [Indexed: 02/07/2023] Open
Abstract
Obesity and liver steatosis are usually described as related diseases. Obesity is regarded as exclusive consequence of an imbalance between food intake and physical exercise, modulated by endocrine and genetic factors. Non-alcoholic fatty liver disease (NAFLD), is a condition whose natural history is related to, but not completely explained by over-nutrition, obesity and insulin resistance. There is evidence that environmental infections, and notably adipogenic adenoviruses (ADV) infections in humans, are associated not only with obesity, which is sufficiently established, but also with allied conditions, such as fatty liver. In order to elucidate the role, if any, of previous ADV36 infection in humans, we investigated association of ADV36-ADV37 seropositivity with obesity and fatty liver in humans. Moreover, the possibility that lifestyle-nutritional intervention in patients with NAFLD and different ADV36 seropositive status, achieves different clinical outcomes on ultrasound bright liver imaging, insulin resistance and obesity was challenged. ADV36 seropositive patients have a more consistent decrease in insulin resistance, fatty liver severity and body weight in comparison with ADV36 seronegative patients, indicating a greater responsiveness to nutritional intervention. These effects were not dependent on a greater pre-interventional body weight and older age. These results imply that no obvious disadvantage - and, seemingly, that some benefit - is linked to ADV36 seropositivity, at least in NAFLD. ADV36 previous infection can boost weight loss and recovery of insulin sensitivity under interventional treatment.
Collapse
|
39
|
Hijacking Dlg1 for oncogenic phosphatidylinositol 3-kinase activation in human epithelial cells is a conserved mechanism of human adenovirus E4-ORF1 proteins. J Virol 2014; 88:14268-77. [PMID: 25253337 DOI: 10.1128/jvi.02324-14] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
UNLABELLED The E4-ORF1 gene of human adenoviruses encodes a 14-kDa protein that promotes viral replication as well as cellular metabolic reprogramming, survival, and transformation by constitutively activating cellular phosphatidylinositol 3-kinase (PI3K). We recently reported that the E4-ORF1 protein from subgroup D human adenovirus type 9 upregulates and oncogenically activates PI3K by a novel mechanism involving separate interactions of E4-ORF1 with cellular discs large 1 (Dlg1) and PI3K to form a ternary complex that translocates to the plasma membrane (K. Kong, M. Kumar, M. Taruishi, and R. T. Javier, PLoS Pathog. 10:e1004102, 2014, doi:10.1371/journal.ppat.1004102). The current study was carried out to investigate whether other human adenovirus E4-ORF1 proteins share this mechanism of action. The results showed that in human MCF10A epithelial cells, stable expression of E4-ORF1 proteins encoded by representative human adenovirus serotypes from subgroups A to D induce ternary complex formation, Dlg1-dependent PI3K activation, PI3K protein elevation, Dlg1 and PI3K membrane recruitment, and PI3K-dependent cellular transformation. The first three of these E4-ORF1 activities were also observed in MCF10A cells infected with each wild-type human adenovirus from subgroups A to D. Our findings indicate that most, if not all, human adenovirus E4-ORF1 proteins share a conserved molecular mechanism of PI3K activation, which confers a common capacity to promote oncogenic transformation in human epithelial cells. IMPORTANCE PI3K activation by the adenovirus E4-ORF1 protein mediates oncogenic cellular transformation by human adenovirus type 9, augments viral protein expression and replication by human adenovirus type 5, and dysregulates cellular glucose and lipid metabolism by human adenovirus type 36. For the first time, we report that E4-ORF1 proteins from human adenoviruses in subgroups A to D evolved a conserved molecular mechanism to mediate constitutive PI3K activation that can provoke oncogenic transformation in human epithelial cells. The results raise potential safety concerns about the use of vectors encoding the E4-ORF1 gene in human gene therapy and vaccination. Our findings further suggest that the conserved mechanism revealed here may be targeted for development of therapeutic drugs to treat and prevent adenovirus-associated human diseases.
Collapse
|
40
|
Voss JD, Burnett DG, Olsen CH, Haverkos HW, Atkinson RL. Adenovirus 36 antibodies associated with clinical diagnosis of overweight/obesity but not BMI gain: a military cohort study. J Clin Endocrinol Metab 2014; 99:E1708-12. [PMID: 24971666 PMCID: PMC4154092 DOI: 10.1210/jc.2014-1863] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Obesity is a public health priority, which also threatens national security. Adenovirus 36 (Adv36) increases adiposity in animals and Adv36 antibody status is associated with human obesity, but it is unknown whether infection predicts the development of human adiposity. OBJECTIVE The objective of the study was to assess infection status and subsequent weight gain. DESIGN The study had a retrospective cohort design. SETTING The study was conducted at Air Force fitness testing and clinical encounters. PARTICIPANTS PARTICIPANTS included Air Force male enlistees, aged 18-22 years, with a baseline body mass index (BMI) of 20-30 kg/m(2) followed up from enlistment (beginning in 1995) until 2012 or separation from the Air Force. EXPOSURE EXPOSURE included Adv36 infection status at the time of entry. MAIN OUTCOME MEASURE Follow-up BMI, the primary outcome, and diagnosis of overweight/obesity by the International Classification of Diseases, ninth revision V85.25+ and 278.0* series (secondary outcome) were recorded. RESULTS The last recorded follow-up BMI was similar among infected and uninfected, 26.4 and 27.2 kg/m(2), respectively (P > .05). However, infected individuals had a higher hazard of a medical provider's diagnosis of overweight/obese over time (hazard ratio 1.8, 95% confidence interval 1.0-3.1, P = .04), adjusted for baseline BMI. Additionally, infected individuals who were lean at baseline (BMI of 22.5 kg/m(2)) had a 3.9 times greater hazard of developing an overweight/obese clinical diagnosis (95% confidence interval 1.5-9.7, P = .004) compared with uninfected lean individuals after adjusting for interaction (P = .03) between infection and baseline BMI. CONCLUSIONS The presence of Adv36 antibodies was not associated with higher BMI at baseline or follow-up within this military population. However, being infected was associated with developing a clinical diagnosis of overweight/obesity, especially among those lean at baseline.
Collapse
Affiliation(s)
- Jameson D Voss
- Epidemiology Consult Service (J.D.V.), United States Air Force School of Aerospace Medicine, Wright Patterson Air Force Base, Ohio 45433; Department of Preventive Medicine and Biometrics (J.D.V., D.G.B., C.H.O., H.W.H.), Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814; Obetech Obesity Research Center (R.L.A.), Richmond, Virginia 23219; and Virginia Commonwealth University (R.L.A.), Richmond, Virginia 23298
| | | | | | | | | |
Collapse
|
41
|
Jiao Y, Mao X, Chang X, Abudureyimu K, Zhang C, Lu J, Wang Y, Nuermaimaiti N, Aisa Y, Gong X, Guan Y. Adenovirus36 infection expresses cellular APMI and Visfatin genes in overweight Uygur individuals. Diagn Pathol 2014; 9:83. [PMID: 24739504 PMCID: PMC3996488 DOI: 10.1186/1746-1596-9-83] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 04/02/2014] [Indexed: 11/23/2022] Open
Abstract
Objective This study is to determine if Adenovirus type 36 (Ad36) infection is related to macrophage infiltration in the obese group and non-obese group and the related molecular mechanisms. Methods Ninety obesity patients and 95 non-obesity Uygur individuals were enrolled in this study. CD68 levels in abdominal subcutaneous and omental adipose tissues were detected by immunohistochemistry. The cytokine expression levels of adiponectin (APMI) and visfatin in serum were measured by enzyme-linked immunosorbent assay. Infection of 3T3-L1 cells with Ad36 was performed. Real-time PCR was performed to determine expression levels of APMI and Visfatin genes in the 3T3-L1 preadipocytes infected with Ad36. Results In the obese individuals infected with Ad36, the expression levels of adiponectin and visfatin in serum was elevated. For the individuals infected with Ad36, the macrophage infiltration (as indicated by CD68 level) in the obese group was also significantly higher than that in the non-obese group (P < 0.05) in both abdominal subcutaneous and omental adipose tissues. The real-time PCR results indicated that APMI mRNA levels and Visfatin mRNA levels in Ad36 infected cells were significantly increased. Conclusions Ad36 infection may be a factor related with macrophage infiltration in adipose tissues of the obese patients. The APMI and Visfatin genes may be involved in the mechanism underlying the effect of Ad36 infection on the obese patients. Virtual Slides The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1849614638119816
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Yaqun Guan
- Department of Biochemistry and Molecular Biology, Preclinical Medicine College, Xinjiang Medical University, Urumqi 830011, P, R China.
| |
Collapse
|
42
|
Shang Q, Wang H, Song Y, Wei L, Lavebratt C, Zhang F, Gu H. Serological data analyses show that adenovirus 36 infection is associated with obesity: a meta-analysis involving 5739 subjects. Obesity (Silver Spring) 2014; 22:895-900. [PMID: 23804409 DOI: 10.1002/oby.20533] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 05/23/2013] [Accepted: 05/26/2013] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Serological studies on the relationship between adenovirus 36 (Ad36) and an increased risk of obesity development have shown conflicting results. We reviewed the published studies and carried out a meta-analysis to explore this relationship. METHODS PubMed was searched until December 2012 for the relative references with sufficient information to estimate odds ratios (ORs) and 95% confidence intervals (CIs). A total of 11 case-control studies, including 2508 obese subjects and 3005 controls, were selected. RESULTS Compared with nonobese controls, Ad36 infection significantly increased the obesity risk by a pooled OR of 1.60 (95% CI = 1.14-2.25; P < 0.01). Meta-regression showed that the types of subject and obesity assessments were potential risk factors. In the subgroup analysis, a significantly increased risk was found in children (OR = 1.95; 95% CI = 1.34-2.85; z = 3.45; P < 0.01) and those with an obesity assessment of BMI ≥ 30 kg/cm2 (OR = 1.89; 95% CI = 1.15-3.10; P < 0.05). CONCLUSIONS Ad36 infection is associated with an increased risk of obesity development. To our knowledge, this is the first report to reveal the significant relationship in children with a serological data analysis.
Collapse
Affiliation(s)
- Qinglong Shang
- Department of Microbiology, Harbin Medical University, Harbin, 150081, China; Heilongjiang key Laboratory of Infection and Immunity, Heilongjiang Province, China; Pathogenic-Biological key laboratory, Heilongjiang Higher Education Institutions, 150081, Harbin, China
| | | | | | | | | | | | | |
Collapse
|
43
|
Reeves GM, Mazaheri S, Snitker S, Langenberg P, Giegling I, Hartmann AM, Konte B, Friedl M, Okusaga O, Groer MW, Mangge H, Weghuber D, Allison DB, Rujescu D, Postolache TT. A Positive Association between T. gondii Seropositivity and Obesity. Front Public Health 2013; 1:73. [PMID: 24400300 PMCID: PMC3872312 DOI: 10.3389/fpubh.2013.00073] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Accepted: 12/09/2013] [Indexed: 01/22/2023] Open
Abstract
Obesity is a global public health problem that is linked with morbidity, mortality, and functional limitations and has limited options for sustained interventions. Novel targets for prevention and intervention require further research into the pathogenesis of obesity. Consistently, elevated markers of inflammation have been reported in association with obesity, but their causes and consequences are not well understood. An emerging field of research has investigated the association of infections and environmental pathogens with obesity, potential causes of low grade inflammation that may mediate obesity risk. In this study, we estimate the possible association between Toxoplasma gondii (T. gondii) infection and obesity in a sample of 999 psychiatrically healthy adults. Individuals with psychiatric conditions, including personality disorders, were excluded because of the association between positive serology to T. gondii and various forms of serious mental illness that have a strong association with obesity. In our sample, individuals with positive T. gondii serology had twice the odds of being obese compared to seronegative individuals (p = 0.01). Further, individuals who were obese had significant higher T. gondii IgG titers compared to individuals who were non-obese. Latent T. gondii infection is very common worldwide, so potential public health interventions related to this parasite can have a high impact on associated health concerns.
Collapse
Affiliation(s)
- Gloria M Reeves
- Child and Adolescent Mental Health Innovations Center, Department of Psychiatry, University of Maryland, School of Medicine , Baltimore, MD , USA ; Division of Child and Adolescent Psychiatry, Department of Psychiatry, University of Maryland, School of Medicine , Baltimore, MD , USA
| | - Sara Mazaheri
- St. Elizabeths Hospital, Psychiatry ResidencyTraining Program , Washington, DC , USA
| | - Soren Snitker
- Division of Endocrinology, Diabetes, and Nutrition, Department of Medicine, University of Maryland, School of Medicine , Baltimore, MD , USA
| | - Patricia Langenberg
- Department of Epidemiology and Public Health, University of Maryland, School of Medicine , Baltimore, MD , USA
| | - Ina Giegling
- Department of Psychiatry, Martin-Luther-Universität Halle-Wittenberg , Halle , Germany
| | - Annette M Hartmann
- Department of Psychiatry, Martin-Luther-Universität Halle-Wittenberg , Halle , Germany
| | - Bettina Konte
- Department of Psychiatry, Martin-Luther-Universität Halle-Wittenberg , Halle , Germany
| | - Marion Friedl
- Department of Psychiatry, Martin-Luther-Universität Halle-Wittenberg , Halle , Germany
| | - Olaoluwa Okusaga
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston , TX , USA
| | - Maureen W Groer
- Colleges of Nursing and Medicine, University of South Florida , Tampa, FL , USA
| | - Harald Mangge
- Research Unit on Lifestyle and Inflammation-associated Risk Biomarkers, Clinical Institute for Medical and Chemical Laboratory Diagnosis, Medical University of Graz , Graz , Austria
| | - Daniel Weghuber
- Department of Pediatrics, Paracelsus Medical School , Salzburg , Austria
| | - David B Allison
- Section on Statistical Genetics, Department of Biostatistics, Nutrition Obesity Research Center, University of Alabama at Birmingham , Birmingham, AL , USA
| | - Dan Rujescu
- Department of Psychiatry, Martin-Luther-Universität Halle-Wittenberg , Halle , Germany
| | - Teodor T Postolache
- Child and Adolescent Mental Health Innovations Center, Department of Psychiatry, University of Maryland, School of Medicine , Baltimore, MD , USA ; Mood and Anxiety Disorder Program, Department of Psychiatry, University of Maryland, School of Medicine , Baltimore, MD , USA
| |
Collapse
|
44
|
Trovato GM, Catalano D, Martines GF, Trovato FM. Comment on: Lin et al. Long-term changes in adiposity and glycemic control are associated with past adenovirus infection. Diabetes Care 2013;36:701-707. Diabetes Care 2013; 36:e184. [PMID: 24065857 PMCID: PMC3781529 DOI: 10.2337/dc13-0671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
45
|
Lin WY, Dubuisson O, Rubicz R, Liu N, Allison DB, Curran JE, Comuzzie AG, Blangero J, Leach CT, Göring H, Dhurandhar NV. Response to Comment on: Lin et al. Long-term changes in adiposity and glycemic control are associated with past adenovirus infection. Diabetes Care 2013;36:701-707. Diabetes Care 2013; 36:e162. [PMID: 23970733 PMCID: PMC3747913 DOI: 10.2337/dc13-0879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Wan-Yu Lin
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei Taiwan
| | - Olga Dubuisson
- Infections and Obesity Laboratory, Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana
| | - Rohina Rubicz
- Department of Genetics, Texas Biomedical Research Institute, San Antonio, Texas
| | - Nianjun Liu
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, Alabama
| | - David B. Allison
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, Alabama
| | - Joanne E. Curran
- Department of Genetics, Texas Biomedical Research Institute, San Antonio, Texas
| | - Anthony G. Comuzzie
- Department of Genetics, Texas Biomedical Research Institute, San Antonio, Texas
| | - John Blangero
- Department of Genetics, Texas Biomedical Research Institute, San Antonio, Texas
| | - Charles T. Leach
- Department of Pediatrics, University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - Harald Göring
- Department of Genetics, Texas Biomedical Research Institute, San Antonio, Texas
| | - Nikhil V. Dhurandhar
- Infections and Obesity Laboratory, Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana
| |
Collapse
|
46
|
Yamada T, Hara K, Kadowaki T. Comment on: Lin et al. Long-term changes in adiposity and glycemic control are associated with past adenovirus infection. Diabetes Care 2013;36:701-707. Diabetes Care 2013; 36:e161. [PMID: 23970732 PMCID: PMC3747894 DOI: 10.2337/dc13-0657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Tomohide Yamada
- Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, University of Tokyo, Japan
| | - Kazuo Hara
- Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, University of Tokyo, Japan
| | - Takashi Kadowaki
- Department of Diabetes and Metabolic Diseases, Graduate School of Medicine, University of Tokyo, Japan
| |
Collapse
|
47
|
Dhurandhar NV, Geurts L, Atkinson RL, Casteilla L, Clement K, Gerard P, Vijay-Kumar M, Nam JH, Nieuwdorp M, Trovato G, Sørensen TIA, Vidal-Puig A, Cani PD. Harnessing the beneficial properties of adipogenic microbes for improving human health. Obes Rev 2013; 14:721-35. [PMID: 23663746 DOI: 10.1111/obr.12045] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 04/15/2013] [Accepted: 04/16/2013] [Indexed: 12/15/2022]
Abstract
Obesity is associated with numerous metabolic comorbidities. Weight loss is an effective measure for alleviating many of these metabolic abnormalities. However, considering the limited success of most medical weight-management approaches in producing a sustained weight loss, approaches that improve obesity-related metabolic abnormalities independent of weight loss would be extremely attractive and of practical benefit. Metabolically healthy obesity supports the notion that a better metabolic profile is possible despite obesity. Moreover, adequate expansion of adipose tissue appears to confer protection from obesity-induced metabolic comorbidities. To this end, the 10th Stock conference examined new approaches to improve metabolic comorbidities independent of weight loss. In particular, human adenovirus 36 (Ad36) and specific gut microbes were examined for their potential to influence lipid and glucose homeostasis in animals and humans. While these microbes possess some undesirable properties, research has identified attributes of adenovirus Ad36 and gut microbes that may be selectively harnessed to improve metabolic profile without the obligatory weight loss. Furthermore, identifying the host signalling pathways that these microbes recruit to improve the metabolic profile may offer new templates and targets, which may facilitate the development of novel treatment strategies for obesity-related metabolic conditions.
Collapse
Affiliation(s)
- N V Dhurandhar
- Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Dhurandhar NV. Prevalence of Ad36 infection in humans. J Clin Virol 2013; 57:261-2. [PMID: 23601664 DOI: 10.1016/j.jcv.2013.03.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 03/13/2013] [Accepted: 03/17/2013] [Indexed: 11/24/2022]
|
49
|
Parra-Rojas I, Del Moral-Hernández O, Salgado-Bernabé AB, Guzmán-Guzmán IP, Salgado-Goytia L, Muñoz-Valle JF. Adenovirus-36 seropositivity and its relation with obesity and metabolic profile in children. Int J Endocrinol 2013; 2013:463194. [PMID: 24324491 PMCID: PMC3845401 DOI: 10.1155/2013/463194] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 10/07/2013] [Indexed: 12/11/2022] Open
Abstract
The human adenovirus 36 (Ad-36) is causally and correlatively associated in animals and humans, respectively, with increased adiposity and altered metabolic profile. In previous studies, the relationship between Ad-36 seropositivity with obesity was established in adults and children. We evaluated the association of positive antibodies to Ad-36 with obesity and metabolic profile in Mexican children. Seventy-five children with normal-weight and 82 with obesity were studied in this research. All children had a clinic assessment which included weight, height, body circumferences, and skinfold thickness. Laboratory analyzes included triglycerides, total cholesterol, high-density lipoprotein, low-density lipoprotein, and glucose and insulin levels. An enzyme-linked immunosorbent assay (ELISA) was used to determine the antibodies to Ad-36 in the serum samples. The overall Ad-36 seroprevalence was 73.9%. Ad-36 seropositivity had a higher prevalence in obese children than in normal weight group (58.6 versus 41.4%, P = 0.007). Ad-36 seropositivity was associated with obesity (OR = 2.66, P = 0.01) and high-density lipoprotein <40 mg/dL (OR = 2.85, P = 0.03). The Ad-36 seropositive group had greater risk of 4 metabolic abnormalities compared with those children without none alteration. In summary, Ad-36 seropositivity was associated with obesity and low HDL-c levels in the sample of children studied.
Collapse
Affiliation(s)
- Isela Parra-Rojas
- Laboratorio de Investigación en Obesidad y Diabetes, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Avenida Lázaro Cárdenas S/N, Ciudad Universitaria, 39090 Chilpancingo, GR, Mexico
- *Isela Parra-Rojas:
| | - Oscar Del Moral-Hernández
- Laboratorio de Biomedicina Molecular, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Avenida Lázaro Cárdenas S/N, Ciudad Universitaria, 39090 Chilpancingo, GR, Mexico
| | - Aralia B. Salgado-Bernabé
- Laboratorio de Investigación en Obesidad y Diabetes, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Avenida Lázaro Cárdenas S/N, Ciudad Universitaria, 39090 Chilpancingo, GR, Mexico
| | - Iris P. Guzmán-Guzmán
- Laboratorio de Investigación en Obesidad y Diabetes, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Avenida Lázaro Cárdenas S/N, Ciudad Universitaria, 39090 Chilpancingo, GR, Mexico
| | - Lorenzo Salgado-Goytia
- Laboratorio de Investigación en Obesidad y Diabetes, Unidad Académica de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Avenida Lázaro Cárdenas S/N, Ciudad Universitaria, 39090 Chilpancingo, GR, Mexico
| | - José F. Muñoz-Valle
- Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Instituto de Investigación en Ciencias Biomédicas, Universidad de Guadalajara, Sierra Mojada 950, 44350 Guadalajara, JA, Mexico
| |
Collapse
|