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Salaffi F, Giacobazzi G, Di Carlo M. Chronic Pain in Inflammatory Arthritis: Mechanisms, Metrology, and Emerging Targets-A Focus on the JAK-STAT Pathway. Pain Res Manag 2018; 2018:8564215. [PMID: 29623147 PMCID: PMC5829432 DOI: 10.1155/2018/8564215] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 12/13/2017] [Indexed: 12/14/2022]
Abstract
Chronic pain is nowadays considered not only the mainstay symptom of rheumatic diseases but also "a disease itself." Pain is a multidimensional phenomenon, and in inflammatory arthritis, it derives from multiple mechanisms, involving both synovitis (release of a great number of cytokines) and peripheral and central pain-processing mechanisms (sensitization). In the last years, the JAK-STAT pathway has been recognized as a pivotal component both in the inflammatory process and in pain amplification in the central nervous system. This paper provides a summary on pain in inflammatory arthritis, from pathogenesis to clinimetric instruments and treatment, with a focus on the JAK-STAT pathway.
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Affiliation(s)
- Fausto Salaffi
- Rheumatology Department, Università Politecnica delle Marche, Jesi, Ancona, Italy
| | | | - Marco Di Carlo
- Rheumatology Department, Università Politecnica delle Marche, Jesi, Ancona, Italy
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Zeng J, Xu Y, Shi Y, Jiang C. Inflammation role in sensory neuropathy in Chinese patients with diabetes/prediabetes. Clin Neurol Neurosurg 2018; 166:136-140. [PMID: 29414152 DOI: 10.1016/j.clineuro.2018.01.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 12/14/2017] [Accepted: 01/28/2018] [Indexed: 01/31/2023]
Abstract
OBJECTIVES Prediabetes involves people with glucose-metabolism impairment, and is related to different diabetic complications, like peripheral neuropathy. We aimed to explore the relationship among inflammatory (tumor necrosis factor alpha [TNFα]) and antiinflammatory (interleukin 10 [IL10]) cytokines as well as neuropathy of very distal-sensory-nerves in Chinese patients with prediabetes/diabetes. PATIENTS AND METHODS In the present study, 55 patients having prediabetes, 55 patients having type 2 diabetes mellitus (DM), and 48 controls were included. TNFα, HbA1c, and IL10 plasma levels were measured. Electrodiagnosis was conducted on dorsal-sural/medial-plantar sensory nerve, that is most distal feet sensory-nerves. RESULTS Nerve conduction test (NCT) irregularities of dorsal-sural/medial-plantar sensory nerve were considerably greater in patients with prediabetes or diabetes. The means of TNFα levels demonstrated a significant increase in patients with diabetes when compared to prediabetes patients as well as controls showed a significant decrease in patients with prediabetes and diabetes contrasted with controls. No significant contrast with respect to serum biomarkers among patients having regular as well as irregular medial-plantar/dorsal-sural NCT was noted. Critical correlationship among TNFα as well as HbA1c with symptoms severity as well as disability while negative correlations of IL10 with neuropathy severity was noted. Biomarker levels of TNFα, IL10, and HbA1c were noted to differ significantly among patients without/with neuropathy. CONCLUSION All in all, the proinflammatory phase appears to start from initial pre-clinical phases, sometime prior to advancement of diabetes. The higher neuropathy frequency in patients with prediabetes indicates conceivable causative impact; although, the prospective part of inflammation in pathogenetics of peripheral neuropathy requires more elucidation.
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Affiliation(s)
- Jing Zeng
- Department of Neurology, Zhongshan Traditional Chinese Medicine Hospital, Zhongshan, 528400, China.
| | - Yalin Xu
- Department of Rehabilitation, Department of Rehabilitation Second people's Hospital of Jiangmen, Jiangmen, Guangdong 529030, China.
| | - Yao Shi
- Rehabilitation Specialty, Jinan University, Guangzhou, 510632, China.
| | - Chenyin Jiang
- Rehabilitation Specialty, Jinan University, Guangzhou, 510632, China.
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Alciati A, Atzeni F, Grassi M, Caldirola D, Sarzi-Puttini P, Angst J, Perna G. Features of mood associated with high body weight in females with fibromyalgia. Compr Psychiatry 2018; 80:57-64. [PMID: 29035730 DOI: 10.1016/j.comppsych.2017.08.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 07/27/2017] [Accepted: 08/29/2017] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Fibromyalgia (FM) is a common syndrome whose main characteristic is chronic widespread musculoskeletal pain, the severity of which is frequently worsened by concomitant obesity. Major depression (MD), particularly as part of a bipolar spectrum disorder (BSD), is associated with both obesity and FM. OBJECTIVE To evaluate the relationship between lifetime MD, hypomanic symptoms and the body mass index (BMI) in patients with FM. METHOD Of the 115 patients originally screened, 87 women with FM finally entered the study. Forty-nine patients (57%) had a lifetime diagnosis of MD, assessed by a structured clinical interview based on DSM-IV criteria, and four of them (4.6%) had a current MD episode. Lifetime hypomanic symptoms were measured by means of the self-rated Hypomania Checklist. According to the international criteria for BMI, FM patients were classified as under/normal-weight (61%), overweight (30%) and obese (9%). RESULTS 62 patients (71.2%) with FM had a bipolar spectrum disorder (BSD). Thirty (48.3%) of them met criteria for bipolar II disorder, 32 (51,6%) for bipolar disorder NOS (18 FM patients with MD associated to sub-syndromal hypomanic syndrome and 14 with hypomanic syndrome without MD). No patient had a bipolar I disorder. Only one patient met the criteria for a major depressive disorder (MDD). There was no significant difference in mean BMI between the patients with and without a lifetime diagnosis of MD, but there was a positive association between the level of hypomanic symptoms and BMI values (p<0.009). When hypomania was considered categorically as hypomanic syndrome there was no significant effect on BMI. CONCLUSIONS Our finding adds to previous evidence indicating that hypomanic symptoms are a central feature of FM. In the case of the early identification of high-level hypomanic symptoms, body weight should be closely monitored in order to prevent obesity and its detrimental impact on females with FM.
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Affiliation(s)
- Alessandra Alciati
- Department of Clinical Neurosciences, Villa San Benedetto Menni Hospital, Hermanas Hospitalarias, FoRiPsi, Albese con Cassano, Como, Italy.
| | | | - Massimiliano Grassi
- Department of Clinical Neurosciences, Villa San Benedetto Menni Hospital, Hermanas Hospitalarias, FoRiPsi, Albese con Cassano, Como, Italy
| | - Daniela Caldirola
- Department of Clinical Neurosciences, Villa San Benedetto Menni Hospital, Hermanas Hospitalarias, FoRiPsi, Albese con Cassano, Como, Italy
| | | | - Jules Angst
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Switzerland
| | - Giampaolo Perna
- Department of Clinical Neurosciences, Villa San Benedetto Menni Hospital, Hermanas Hospitalarias, FoRiPsi, Albese con Cassano, Como, Italy; Research Institute of Mental Health and Neuroscience, Department of Psychiatry and Neuropsychology, Faculty of Health, Medicine and Life Sciences, University of Maastricht, Maastricht, Netherlands; Department of Psychiatry and Behavioral Sciences, Leonard Miller School of Medicine, University of Miami, Miami, USA
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Ng CY, Tzeng IS, Liu SH, Chang YC, Huang YH. Metabolic parameters in psoriatic patients treated with interleukin-12/23 blockade (ustekinumab). J Dermatol 2017; 45:309-313. [PMID: 28980716 DOI: 10.1111/1346-8138.14079] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 08/31/2017] [Indexed: 01/04/2023]
Abstract
The associations between psoriasis, metabolic syndrome and cardiovascular events are increasingly recognized. Studies have shown decreased cardiovascular events with the treatment of methotrexate and anti-tumor necrosis factor, however, effects of interleukin (IL)-12/23 blockade remain debatable. Our study investigated the effect of IL-12/23 blockade on the metabolic parameters in patients with psoriasis. We performed a retrospective cohort study to assess 93 consecutive patients with moderate to severe plaque type psoriasis who received IL-12/23 blockade (ustekinumab) for 24 weeks between January 2012 and May 2016. Metabolic parameters and disease activity (Psoriasis Area and Severity Index [PASI] score) at baseline and 24 weeks of treatment were collected. At week 24, the disease activity improved significantly (P < 0.0001), with a significant reduction of erythrocyte sedimentation rate. Conversely, body mass index was significantly elevated in PASI-75 responders at week 24 of treatment and was independent of disease severity. Fasting sugar and triglyceride levels were also elevated at week 24 in both PASI-75 responders and PASI-75 non-responders. Cholesterol, low-density lipoprotein (LDL) and high-density lipoprotein (HDL) remained unchanged. These metabolic parameters were not correlated with the improvement in disease severity after ustekinumab treatment. Nonetheless, the atherogenic index, LDL/HDL ratio and cholesterol/HDL ratio remained unchanged. Male sex and cigarette smoking are predictors of elevated plasma triglyceride levels. Our results suggest that despite tremendous improvement in disease activity after ustekinumab treatment, obesity, fasting sugar and hypertriglyceridemia still present in these patients. Regular screening of lipid profile, obesity control and smoking cessation are advised during the treatment of ustekinumab especially in male psoriatic patients with predisposing cardiovascular risks.
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Affiliation(s)
- Chau Yee Ng
- Department of Dermatology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan.,School of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - I-Shiang Tzeng
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan.,Department of Family Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Su-Hsun Liu
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Department of Family Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Ya-Ching Chang
- Department of Dermatology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan.,School of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yu-Huei Huang
- Department of Dermatology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan.,School of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
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Peacock WF, Tamayo S, Sicignano N, Hopf KP, Yuan Z, Patel M. Comparison of the Incidence of Major Bleeding With Rivaroxaban Use Among Nonvalvular Atrial Fibrillation Patients With Versus Without Diabetes Mellitus. Am J Cardiol 2017; 119:753-759. [PMID: 28081941 DOI: 10.1016/j.amjcard.2016.11.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 11/10/2016] [Accepted: 11/10/2016] [Indexed: 11/19/2022]
Abstract
Diabetes mellitus (DM) is a common co-morbidity in those with nonvalvular atrial fibrillation (NVAF). Most patients with DM and NVAF have a CHA2DS2-VASc score of ≥1 and should be considered for oral anticoagulation therapy for stroke prevention per treatment guidelines. The most important risk associated with anticoagulation is bleeding, which may be higher in those with NVAF plus DM. Our objective was to evaluate the incidence and characteristics of major bleeding (MB) in rivaroxaban users diagnosed with NVAF, further comparing those with DM versus those without DM, in a real-world clinical setting. Electronic medical records of >10 million patients from the Department of Defense Military Health System were queried to identify rivaroxaban users with NVAF over a 2.5-year period. Major bleeding-related hospitalization was identified by a validated case-finding algorithm. Patient characteristics, incidence and management of MB, and fatal outcomes were assessed by DM status. Of 44,793 rivaroxaban users with NVAF, 12,039 (26.9%) had DM, who were more likely men, younger, with more co-morbidity and higher CHA2DS2-VASc scores. Major bleeding incidence was higher among those with DM compared with those without, 3.68 (95% confidence interval [CI] 3.37 to 4.03) versus 2.51 (95% CI 2.34 to 2.69) per 100 person-years, and intracranial bleeding incidence was 0.19 (95% CI 0.13 to 0.28) versus 0.25 (95% CI 0.20 to 0.31) per 100 person-years. Fatal outcomes were rare for both cohorts, 0.09 per 100 person-years. In conclusion, in this post-marketing study of 44,793 rivaroxaban users with NVAF, patients with DM had more co-morbidities and higher incidence of MB compared with those without DM.
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Affiliation(s)
- W Frank Peacock
- Department of Emergency Medicine, Baylor College of Medicine, Houston, Texas.
| | - Sally Tamayo
- Department of Cardiology, United States Naval Medical Center, Portsmouth, Virginia
| | | | - Kathleen P Hopf
- Clinical Epidemiology, Health ResearchTx LLC, Trevose, Pennsylvania
| | - Zhong Yuan
- Janssen Research and Development, LLC, Titusville, New Jersey
| | - Manesh Patel
- Duke University Health System and Duke Clinical Research Institute, Durham, North Carolina
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Associations Between Fat Mass and Multisite Pain: A Five‐Year Longitudinal Study. Arthritis Care Res (Hoboken) 2017; 69:509-516. [DOI: 10.1002/acr.22963] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 06/15/2016] [Accepted: 06/21/2016] [Indexed: 12/27/2022]
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Rodrigues KF, Pietrani NT, Bosco AA, Campos FMF, Sandrim VC, Gomes KB. IL-6, TNF-α, and IL-10 levels/polymorphisms and their association with type 2 diabetes mellitus and obesity in Brazilian individuals. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2017; 61:438-446. [PMID: 28225860 PMCID: PMC10522244 DOI: 10.1590/2359-3997000000254] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 11/25/2016] [Indexed: 11/22/2022]
Abstract
OBJECTIVE This study aimed to investigate the association of plasma TNF-α, IL-6, and lL-10 levels and cytokine gene polymorphisms [TNF-α (-308 G→A), IL-6 (-174 C→G) and IL-10 (-1082 A→G, -819 T→C and -592 A→C)] in type 2 diabetes mellitus (T2DM) and obese patients. SUBJECTS AND METHODS One hundred and two T2DM patients and 62 controls were included in this study. Cytokine plasma levels were measured by the Cytometric Bead Array method. Genotyping was carried out by the polymerase chain reaction. RESULTS IL-6 levels were significantly different between T2DM patients and controls. Interestingly, IL-6 levels were higher in T2DM patients with BMI > 30 kg/m2 compared with other patients and obese controls. The genotype and allele frequencies were similar between patients and controls. In the T2DM group, the SNP IL-10 -819 T/C showed a difference between the cytokine level and genotypes: IL-10 level in the TT genotype was significantly higher when compared to CC genotype. CONCLUSIONS These results suggest an association between IL-6 levels and obesity, and IL-10 levels and the SNP -819 T/C in T2DM. Knowledge of these variants in T2DM might contribute to a better understanding of the role of inflammation in the etiology and progression of this disease.
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Affiliation(s)
- Kathryna Fontana Rodrigues
- Instituto de Ciências BiológicasUniversidade Federal de Minas GeraisBelo HorizonteMGBrasilInstituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brasil
| | - Nathalia Teixeira Pietrani
- Instituto de Ciências BiológicasUniversidade Federal de Minas GeraisBelo HorizonteMGBrasilInstituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brasil
| | - Adriana Aparecida Bosco
- Instituto de Ensino e PesquisaSanta Casa de Belo HorizonteBelo HorizonteMGBrasilInstituto de Ensino e Pesquisa, Santa Casa de Belo Horizonte, Belo Horizonte, MG, Brasil
| | | | - Valéria Cristina Sandrim
- Instituto de BiociênciasUniversidade Estadual Paulista Júlio de Mesquita FilhoBotucatuSPBrasilInstituto de Biociências, Universidade Estadual Paulista Júlio de Mesquita Filho (Unesp), Botucatu, SP, Brasil
| | - Karina Braga Gomes
- Faculdade de FarmáciaUFMGBelo HorizonteMGBrasilFaculdade de Farmácia, UFMG, Belo Horizonte, MG, Brasil
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Pardo F, Villalobos-Labra R, Chiarello DI, Salsoso R, Toledo F, Gutierrez J, Leiva A, Sobrevia L. Molecular implications of adenosine in obesity. Mol Aspects Med 2017; 55:90-101. [PMID: 28104382 DOI: 10.1016/j.mam.2017.01.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 12/30/2016] [Accepted: 01/13/2017] [Indexed: 12/31/2022]
Abstract
Adenosine has broad activities in organisms due to the existence of multiple receptors, the differential adenosine concentrations necessary to activate these receptors and the presence of proteins able to synthetize, degrade or transport this nucleoside. All adenosine receptors have been reported to be involved in glucose homeostasis, inflammation, adipogenesis, insulin resistance, and thermogenesis, indicating that adenosine could participate in the process of obesity. Since adenosine seems to be associated with several effects, it is plausible that adenosine participates in the initiation and development of obesity or may function to prevent it. Thus, the purpose of this review was to explore the involvement of adenosine in adipogenesis, insulin resistance and thermogenesis, with the aim of understanding how adenosine could be used to avoid, treat or improve the metabolic state of obesity. Treatment with specific agonists and/or antagonists of adenosine receptors could reverse the obesity state, since adenosine receptors normalizes several mechanisms involved in obesity, such as lipolysis, insulin sensitivity and thermogenesis. Furthermore, obesity is a preventable state, and the specific activation of adenosine receptors could aid in the prevention of obesity. Nevertheless, for the treatment of obesity and its consequences, more studies and therapeutic strategies in addition to adenosine are necessary.
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Affiliation(s)
- Fabián Pardo
- Metabolic Diseases Research Laboratory, Center of Research, Development and Innovation in Health - Aconcagua Valley, San Felipe Campus, School of Medicine, Faculty of Medicine, Universidad de Valparaiso, 2172972 San Felipe, Chile; Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile.
| | - Roberto Villalobos-Labra
- Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile
| | - Delia I Chiarello
- Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile
| | - Rocío Salsoso
- Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile; Department of Physiology, Faculty of Pharmacy, Universidad de Sevilla, Seville E-41012, Spain
| | - Fernando Toledo
- Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile; Department of Basic Sciences, Faculty of Sciences, Universidad del Bío-Bío, Chillán 3780000, Chile
| | - Jaime Gutierrez
- Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile; Cellular Signaling Differentiation and Regeneration Laboratory, Health Sciences Faculty, Universidad San Sebastian, Santiago, Chile
| | - Andrea Leiva
- Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile
| | - Luis Sobrevia
- Cellular and Molecular Physiology Laboratory, Division of Obstetrics and Gynaecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 8330024, Chile; Department of Physiology, Faculty of Pharmacy, Universidad de Sevilla, Seville E-41012, Spain; University of Queensland Centre for Clinical Research, Faculty of Medicine and Biomedical Sciences, University of Queensland, Herston, QLD 4029, Queensland, Australia.
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Sharma A, Garg H, Khattri S, Sharma S. Periodontal status of tuberculosis patients - Is there a two-way link? Indian J Tuberc 2016; 63:225-229. [PMID: 27998493 DOI: 10.1016/j.ijtb.2016.09.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 09/19/2016] [Indexed: 11/26/2022]
Abstract
BACKGROUND The influence of systemic disorders on periodontal tissues is well established. Amongst various chronic debilitating diseases, tuberculosis (TB) is one of the major health problems in most developing countries. Although it has a definite affinity for the lungs, it can affect any part of the body including the oral cavity. TB and periodontitis are the two distinct disease processes. But environmental and biological factors play a key role in etiopathogenesis of both the diseases. These factors alter tissue microenvironment leading to cascade of untoward events. AIM To assess and compare the periodontal status of TB patients with that of non-TB subjects. MATERIALS AND METHODS 50 subjects were recruited and divided into 2 groups. Group A consisted of subjects suffering from TB serving as Test group while group B included non-TB subjects serving as Control group. STATISTICAL ANALYSIS Unpaired t-test was used. RESULTS AND CONCLUSION Statistically significant difference in probing pocket depth and bleeding on probing was found between groups A and B, with the difference being higher in group A subjects, thus concluding that periodontal status might be linked with TB.
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Affiliation(s)
- Anamika Sharma
- Department of Periodontology, Subharti Dental College and Hospital, NH-58, Subhartipuram, Delhi-Haridwar Bypass Road, Meerut, India
| | - Harshita Garg
- Postgraduate Student, Department of Periodontology, Subharti Dental College and Hospital, NH-58, Subhartipuram, Delhi-Haridwar Bypass Road, Meerut, India.
| | - Shivi Khattri
- Department of Periodontology, Subharti Dental College and Hospital, NH-58, Subhartipuram, Delhi-Haridwar Bypass Road, Meerut, India
| | - Shatakshi Sharma
- Postgraduate Student, Department of Periodontology, Subharti Dental College and Hospital, NH-58, Subhartipuram, Delhi-Haridwar Bypass Road, Meerut, India
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Duksal T, Tiftikcioglu BI, Bilgin S, Kose S, Zorlu Y. Role of inflammation in sensory neuropathy in prediabetes or diabetes. Acta Neurol Scand 2016; 133:384-90. [PMID: 26346888 DOI: 10.1111/ane.12474] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/12/2015] [Indexed: 12/29/2022]
Abstract
OBJECTIVES Prediabetes includes individuals with impaired glucose metabolism, and it has been associated with various complications of diabetes mellitus (DM), including peripheral neuropathy. We aimed to investigate the associations between pro-inflammatory (TNF-α) and anti-inflammatory (IL-10) cytokines and neuropathy of very distal sensory nerves in patients with prediabetes or type 2 DM. MATERIALS AND METHODS We included 50 patients with prediabetes, 50 patients with type 2 DM, and 44 controls in the study. Plasma levels of HbA1c, TNF-α, and IL-10 were analyzed. Electrodiagnostic testing was performed on dorsal sural and medial plantar sensory nerves, which are the very distal sensory nerves of the feet. RESULTS Abnormalities in nerve conduction studies (NCS) of the dorsal sural and medial plantar sensory nerves were substantially higher in patients with prediabetes or type 2 DM. In addition, plasma levels of TNF-α were significantly higher in patients with type 2 DM than in controls, whereas IL-10 levels were significantly lower in patients with both prediabetes and diabetes. However, we found no correlation between the levels of HbA1c, TNF-α, IL-10, and abnormalities in NCS of the dorsal sural or medial plantar sensory nerves in either patient group. CONCLUSIONS To our knowledge, this is the first study to assess the relationships between TNF-α, IL-10, and NCS of the most distal sensory nerves in patients with prediabetes or type 2 DM. The mechanisms involved in the pathogenesis of DM and diabetic peripheral neuropathy are complex. The pro-inflammatory stage and the high incidence of neuropathy in patients with prediabetes may suggest a possible causative effect; however, the potential role of inflammation in the pathogenesis of peripheral neuropathy needs further clarification.
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Affiliation(s)
- T. Duksal
- Neurology; Tepecik Education and Research Hospital; Izmir Turkey
| | | | - S. Bilgin
- Neurology; Tepecik Education and Research Hospital; Izmir Turkey
| | - S. Kose
- Infectious Diseases and Clinical Microbiology; Tepecik Education and Research Hospital; Izmir Turkey
| | - Y. Zorlu
- Neurology; Tepecik Education and Research Hospital; Izmir Turkey
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Tseng CC, Chang SJ, Tsai WC, Ou TT, Wu CC, Sung WY, Hsieh MC, Yen JH. Reduced incidence of Type 1 diabetes and Type 2 diabetes in systemic sclerosis: A nationwide cohort study. Joint Bone Spine 2016; 83:307-13. [DOI: 10.1016/j.jbspin.2015.06.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 06/21/2015] [Indexed: 10/22/2022]
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Wei Y, Zhang JJ, Li Z, Gow A, Chung KF, Hu M, Sun Z, Zeng L, Zhu T, Jia G, Li X, Duarte M, Tang X. Chronic exposure to air pollution particles increases the risk of obesity and metabolic syndrome: findings from a natural experiment in Beijing. FASEB J 2016; 30:2115-22. [PMID: 26891735 DOI: 10.1096/fj.201500142] [Citation(s) in RCA: 158] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 01/31/2016] [Indexed: 01/05/2023]
Abstract
Epidemiologic evidence suggests that air pollution is a risk factor for childhood obesity. Limited experimental data have shown that early-life exposure to ambient particles either increases susceptibility to diet-induced weight gain in adulthood or increases insulin resistance, adiposity, and inflammation. However, no data have directly supported a link between air pollution and non-diet-induced weight increases. In a rodent model, we found that breathing Beijing's highly polluted air resulted in weight gain and cardiorespiratory and metabolic dysfunction. Compared to those exposed to filtered air, pregnant rats exposed to unfiltered Beijing air were significantly heavier at the end of pregnancy. At 8 wk old, the offspring prenatally and postnatally exposed to unfiltered air were significantly heavier than those exposed to filtered air. In both rat dams and their offspring, after continuous exposure to unfiltered air we observed pronounced histologic evidence for both perivascular and peribronchial inflammation in the lungs, increased tissue and systemic oxidative stress, dyslipidemia, and an enhanced proinflammatory status of epididymal fat. Results suggest that TLR2/4-dependent inflammatory activation and lipid oxidation in the lung can spill over systemically, leading to metabolic dysfunction and weight gain.-Wei, Y., Zhang, J., Li, Z., Gow, A., Chung, K. F., Hu, M., Sun, Z., Zeng, L., Zhu, T., Jia, G., Li, X., Duarte, M., Tang, X. Chronic exposure to air pollution particles increases the risk of obesity and metabolic syndrome: findings from a natural experiment in Beijing.
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Affiliation(s)
- Yongjie Wei
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China; State Key Laboratory of Environmental Criteria, and Risk Assessment and Environmental Standards Institute, Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Junfeng Jim Zhang
- Nicholas School of the Environment and Duke Global Health Institute, Duke University, Durham, North Carolina, USA; Duke Kunshan University, Kunshan, China;
| | - Zhigang Li
- State Key Laboratory of Environmental Criteria, and Risk Assessment and Environmental Standards Institute, Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Andrew Gow
- Department of Toxicology and Pharmacology, Rutgers University, Piscataway, New Jersey, USA
| | - Kian Fan Chung
- National Heart and Lung Institute, Imperial College, London, United Kingdom
| | - Min Hu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
| | - Zhongsheng Sun
- Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing, China; and
| | - Limin Zeng
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
| | - Tong Zhu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
| | - Guang Jia
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing, China
| | - Xiaoqian Li
- State Key Laboratory of Environmental Criteria, and Risk Assessment and Environmental Standards Institute, Chinese Research Academy of Environmental Sciences, Beijing, China
| | - Marlyn Duarte
- Nicholas School of the Environment and Duke Global Health Institute, Duke University, Durham, North Carolina, USA
| | - Xiaoyan Tang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China;
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Sasaki H, Hirai K, Martins CM, Furusho H, Battaglino R, Hashimoto K. Interrelationship Between Periapical Lesion and Systemic Metabolic Disorders. Curr Pharm Des 2016; 22:2204-15. [PMID: 26881444 PMCID: PMC4856634 DOI: 10.2174/1381612822666160216145107] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 02/15/2016] [Indexed: 12/25/2022]
Abstract
BACKGROUND Periapical periodontitis, also known as periapical lesion, is a common dental disease, along with periodontitis (gum disease). Periapical periodontitis is a chronic inflammatory disease, caused by endodontic infection, and its development is regulated by the host immune/inflammatory response. Metabolic disorders, which are largely dependent on life style such as eating habits, have been interpreted as a "metabolically-triggered" low-grade systemic inflammation and may interact with periapical periodontitis by triggering immune modulation. The host immune system is therefore considered the common fundamental mechanism of both disease conditions. METHOD We have reviewed >200 articles to discuss the interrelationship between periapical lesions and metabolic disorders including type 2 diabetes mellitus, hypertension, and non-alcoholic fatty liver diseases (NAFLD), and their common pathological background in immunology/osteoimmunology and cytokine biology. RESULTS An elevated inflammatory state caused by metabolic disorders can impact the clinical outcome of periapical lesions and interfere with wound healing after endodontic treatment. Although additional well-designed clinical studies are needed, periapical lesions appear to affect insulin sensitivity and exacerbate non-alcoholic steatohepatitis. CONCLUSION Immune regulatory cytokines produced by various cell types, including immune cells and adipose tissue, play an important role in this interrelationship.
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Affiliation(s)
- Hajime Sasaki
- Department of Immunology & Infectious Diseases, The Forsyth Institute, 245 First Street, Cambridge, MA 02494, U.S.A.
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Wise AF, Williams TM, Rudd S, Wells CA, Kerr PG, Ricardo SD. Human mesenchymal stem cells alter the gene profile of monocytes from patients with Type 2 diabetes and end-stage renal disease. Regen Med 2015; 11:145-58. [PMID: 26544198 DOI: 10.2217/rme.15.74] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM Macrophage infiltration contributes to the pathogenesis of Type 2 diabetes. Mesenchymal stem cells (MSCs) possess immunomodulatory properties, making them an ideal candidate for therapeutic intervention. This study investigated whether MSCs can modulate the phenotype of monocytes isolated from Type 2 diabetic patients with end-stage renal disease. MATERIALS & METHODS Monocytes from control (n = 4) and Type 2 diabetic patients with end-stage renal disease (n = 5) were assessed using flow cytometry and microarray profiling, following 48 h of co-culture with MSCs. RESULTS Control subjects had a greater proportion of CD14(++)CD16(-) monocytes while diabetic patients had a higher proportion of CD14(++)CD16(+) and CD14(+)CD16(++) monocytes. MSCs promoted the proliferation of monocytes isolated from diabetic patients, reduced HLA-DR expression in both groups and promoted the expression of anti-inflammatory genes. CONCLUSION MSC-derived factors alter the polarization of monocytes isolated from healthy and diabetic subjects toward an M2 phenotype.
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Affiliation(s)
- Andrea F Wise
- Department of Anatomy & Developmental Biology, Monash University, Clayton, Victoria, 3800, Australia
| | - Timothy M Williams
- Department of Anatomy & Developmental Biology, Monash University, Clayton, Victoria, 3800, Australia
| | - Stephen Rudd
- Queensland Facility for Advanced Bioinformatics (QFAB), University of Queensland, St Lucia, Queensland, 4072, Australia
| | - Christine A Wells
- The Australian Institute for Bioengineering & Nanotechnology, University of Queensland, St Lucia, Queensland, 4072, Australia.,Institute of Infection, Immunity & Inflammation, College of Medical, Veterinary & Life Sciences, University of Glasgow, Scotland, G12 8TA, UK
| | - Peter G Kerr
- Department of Medicine, Monash Medical Centre, Clayton, Victoria, 3168, Australia
| | - Sharon D Ricardo
- Department of Anatomy & Developmental Biology, Monash University, Clayton, Victoria, 3800, Australia
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Szewieczek J, Francuz T, Dulawa J, Legierska K, Hornik B, Włodarczyk I, Janusz-Jenczeń M, Batko-Szwaczka A. Functional measures, inflammatory markers and endothelin-1 as predictors of 360-day survival in centenarians. AGE (DORDRECHT, NETHERLANDS) 2015; 37:85. [PMID: 26289439 PMCID: PMC5005827 DOI: 10.1007/s11357-015-9822-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 07/28/2015] [Indexed: 05/16/2023]
Abstract
Centenarians represent a rapidly growing population. To better characterize this specific age group, we have performed a cross-sectional study to observe associations between functional measures and a range of biochemical markers, including inflammatory markers and their significance as predictors of 360-day survival. Medical history and physical and functional assessment (Mini-Mental State Examination (MMSE), Katz Index (activities of daily living, ADL) and Barthel Index (Barthel Index) of Activities of Daily Living, and Lawton Instrumental Activities of Daily Living Scale (Lawton IADL)) were conducted on 86 101.9 ± 1.2-year-old (mean ± SD) subjects (70 women, 16 men). Blood tests were performed on 84 subjects of whom 43 also had extended biomarker assessment. As a reference group 30 51.8 ± 5.0-year old healthy subjects (20 women, 10 men) were recruited. The centenarians received follow-up phone calls. Fifty-two centenarians (60 %) survived ≥360 days. Longer survival was associated with higher MMSE (hazard ratio, HR = 0.934, 95 % confidence interval (CI) 0.896-0.975, P = .002), ADL (HR = 0.840, 95 % CI 0.716-0.985, P = .032), Barthel Index (HR = 0.988, 95 % CI 0.977-0.999, P = .026), and albumin level (HR .926, 95 % CI 0.870-0.986, P .016) and with lower white blood cell (WBC) (HR = 1.161, 95 % CI 1.059-1.273, P = .001), C-reactive protein (CRP) (HR = 1.032, 95 % CI 1.014-1.050, P < .001), IL-6 (HR = 1.182, 95 % CI 1.047-1.335, P = .007), and endothelin-1 (ET-1) level (HR = 3.711, 95 % CI 1.233-11.169, P = .020). Centenarians had higher 360-day survival probability with MMSE ≥13 (P < .001), ADL ≥1 (P < .001), Barthel Index ≥15 (P < .001), Lawton IADL ≥10 points (P = .009), WBC <8.3 G/L (P = .039), CRP <10 mg/L (P < .001), IL-6 <6 pg/mL (P .002), and ET-1 <1.1 pg/mL (P .007). Our results indicate that functional measures, inflammatory markers, and endothelin-1 are predictors of 360-day survival in centenarians.
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Affiliation(s)
- Jan Szewieczek
- Department of Geriatrics, School of Health Sciences in Katowice, SUM, SPSK NR 7 SUM GCM, ul. Ziolowa 45/47, 40-635, Katowice, Poland,
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Understanding the effects of mature adipocytes and endothelial cells on fatty acid metabolism and vascular tone in physiological fatty tissue for vascularized adipose tissue engineering. Cell Tissue Res 2015; 362:269-79. [PMID: 26340984 DOI: 10.1007/s00441-015-2274-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Accepted: 07/31/2015] [Indexed: 01/27/2023]
Abstract
Engineering of large vascularized adipose tissue constructs is still a challenge for the treatment of extensive high-graded burns or the replacement of tissue after tumor removal. Communication between mature adipocytes and endothelial cells is important for homeostasis and the maintenance of adipose tissue mass but, to date, is mainly neglected in tissue engineering strategies. Thus, new co-culture strategies are needed to integrate adipocytes and endothelial cells successfully into a functional construct. This review focuses on the cross-talk of mature adipocytes and endothelial cells and considers their influence on fatty acid metabolism and vascular tone. In addition, the properties and challenges with regard to these two cell types for vascularized tissue engineering are highlighted.
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Abstract
Obesity and pain present serious public health concerns in our society. Evidence strongly suggests that comorbid obesity is common in chronic pain conditions, and pain complaints are common in obese individuals. In this paper, we review the association between obesity and pain in the general population as well as chronic pain patients. We also review the relationship between obesity and pain response to noxious stimulation in animals and humans. Based upon the existing research, we present several potential mechanisms that may link the two phenomena, including mechanical/structural factors, chemical mediators, depression, sleep, and lifestyle. We discuss the clinical implications of obesity and pain, focusing on the effect of weight loss, both surgical and noninvasive, on pain. The literature suggests that the two conditions are significant comorbidities, adversely impacting each other. The nature of the relationship however is not likely to be direct, but many interacting factors appear to contribute. Weight loss for obese pain patients appears to be an important aspect of overall pain rehabilitation, although more efforts are needed to determine strategies to maintain long-term benefit.
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Affiliation(s)
- Akiko Okifuji
- Pain Research and Management Center, Department of Anesthesiology, University of Utah, Salt Lake City, UT, USA
| | - Bradford D Hare
- Pain Research and Management Center, Department of Anesthesiology, University of Utah, Salt Lake City, UT, USA
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Cranmer-Byng MM, Liddle DM, De Boer AA, Monk JM, Robinson LE. Proinflammatory effects of arachidonic acid in a lipopolysaccharide-induced inflammatory microenvironment in 3T3-L1 adipocytes in vitro. Appl Physiol Nutr Metab 2014; 40:142-54. [PMID: 25641170 DOI: 10.1139/apnm-2014-0022] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Long-chain n-3 polyunsaturated fatty acids (PUFA), eicosapentaenoic acid (20:5n-3, EPA) and docosahexaenoic acid (22:6n-3, DHA), have known anti-inflammatory effects, including the modulation of adipose tissue-derived inflammatory mediators (i.e., adipokines) implicated in obesity-related pathologies, such as insulin resistance. Less is known about the effects of plant-derived n-3 PUFA, α-linolenic acid (ALA, 18:3n-3) and stearidonic acid (SDA 18:4n-3), or n-6 PUFA linoleic acid (LA, 18:2n-6) and arachidonic acid (AA, 20:4n-6), especially in combination with an inflammatory stimulus, such as lipopolysaccharide (LPS), at a dose intended to mimic obesity-associated low-grade inflammation. To study this, 3T3-L1 adipocytes were incubated with 100 μmol/L of various n-3 or n-6 PUFA with or without 10 ng/mL LPS for up to 24 h. AA in the presence of LPS synergistically increased (p < 0.05) pro-inflammatory monocyte chemoattractant protein-1 (MCP)-1 and interleukin (IL)-6 secretion and gene expression, as well as COX-2 and TLR2 gene expression at 6 and/or 24 h, suggesting their potential roles in the synergistic effects of AA and LPS. Plant-derived fatty acids ALA, SDA, and LA did not differentially affect adipokine gene expression or secretion, whereas LPS-induced pro-inflammatory IL-1β expression and MCP-1 secretion was decreased (p < 0.05) by EPA, DHA, and/or EPA+DHA (50 μmol/L each) compared with LPS alone. Only DHA increased (p < 0.05) gene expression of the n-3 PUFA receptor GPR120 and simultaneously decreased LPS-induced nuclear factor-κB activation compared with control. Our findings emphasize that specific fatty acids within the n-3 or n-6 PUFA class warrant consideration in the development of nutritional strategies to improve obesity-associated inflammation.
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Affiliation(s)
- Mary M Cranmer-Byng
- Department of Human Health and Nutritional Sciences, 336B Animal Science and Nutrition Building, University of Guelph, Guelph, ON N1G 2W1, Canada
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Motahari-Tabari N, Ahmad Shirvani M, Shirzad-E-Ahoodashty M, Yousefi-Abdolmaleki E, Teimourzadeh M. The effect of 8 weeks aerobic exercise on insulin resistance in type 2 diabetes: a randomized clinical trial. Glob J Health Sci 2014; 7:115-21. [PMID: 25560330 PMCID: PMC4796439 DOI: 10.5539/gjhs.v7n1p115] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Revised: 07/15/2014] [Accepted: 07/01/2014] [Indexed: 01/19/2023] Open
Abstract
Diabetes complications are the main reasons behind morbidity and mortality preventable by healthy diet and physical activity. There are few studies about the effect of aerobic exercises on insulin resistance in human. Also various training protocols are associated with different results. Since approaches to decrease insulin resistance may be followed by more effectiveness treatment, this study assessed the effect of aerobic exercise on insulin resistance in Type 2 Diabetes Mellitus. In this randomized clinical trial, 53 Type 2 diabetic women were randomly divided into two groups as exercise (n=27) and control (n=26). The exercise protocol included warm-up by stretching and flexibility exercises for 10 m, followed by walking for 30 m with maximum intensity 60% increase in heart rate and then stretching in the seated position for 10 m, 3 times a week for 8 weeks. Resistance to insulin was assessed using Homeostasis Model Assessment of Insulin Resistance (HOMA-IR). Significant differences have been observed in insulin resistance, fasting glucose and plasma insulin between the groups after 8 weeks. There were significant differences in waist and hip circumference, BMI, plasma insulin and insulin resistance within the groups over time. In addition, the changes in waist and hip circumference, FBS, plasma insulin and insulin resistance had significant interaction with the time between the groups. The current exercise protocol has been effective in lowering plasma glucose (p = 0.05), insulin levels (p = 0.000) and insulin resistance (p = 0.02). It seems that aerobic exercises training promote the effectiveness of medical treatment in Type 2 Diabetes Mellitus.
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Affiliation(s)
| | - Marjan Ahmad Shirvani
- School of Nursing and Midwifery,Mazandaran University of Medical Sciences, Sari, Iran.
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Doruk M, Uğur M, Oruç AS, Demirel N, Yildiz Y. Serum adiponectin in gestational diabetes and its relation to pregnancy outcome. J OBSTET GYNAECOL 2014; 34:471-5. [DOI: 10.3109/01443615.2014.902430] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Influence of ustekinumab on body weight of patients with psoriasis: an initial report. Postepy Dermatol Alergol 2014; 31:29-31. [PMID: 24683394 PMCID: PMC3952052 DOI: 10.5114/pdia.2014.40656] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 05/20/2013] [Accepted: 06/23/2013] [Indexed: 12/22/2022] Open
Abstract
Introduction Many recent epidemiological studies have shown the influence of treatment with anti-TNF-α on body mass of patients with psoriasis but there are no reports in the literature on the influence of ustekinumab on that parameter. Aim To review the effect of ustekinumab therapy on body weight in patients with psoriasis. Material and methods The examined group consisted of 11 patients with psoriasis treated at the Department and Clinic of Dermatology in Olsztyn. Patients’ body mass and body mass index (BMI) were evaluated prior to the first administration of the ustekinumab dose and at week 28 of treatment (the day of the fourth dose). Results Body mass increase was determined in 7 patients (64%), on average by 2.27 kg (p < 0.05), and the BMI increased by 3.35% (p < 0.1). Conclusions Observing a correlation between ustekinumab application and body mass increase, similar to the treatment with anti-TNF-α preparations, an attempt was undertaken at explaining that correlation by analysing the role of IL-12 and IL-23 in psoriasis pathogenesis. IL-12 and IL-23, by influencing the naïve lymphocytes T and stimulating their diversification towards Th1 and Th17, also, indirectly, cause an increase in TNF-α and other cytokines production (IL-2, IFN-γ, IL-17, IL-10, IL-22). Ustekinumab will then have a significant influence on decreasing the production of cytokines, which are important for metabolism and body mass.
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Katsareli EA, Dedoussis GV. Biomarkers in the field of obesity and its related comorbidities. Expert Opin Ther Targets 2014; 18:385-401. [PMID: 24479492 DOI: 10.1517/14728222.2014.882321] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
INTRODUCTION The prevalence of obesity has increased dramatically in the last decades both in children and adults and is now considered a major health problem. It is associated with numerous comorbidities such as hypertension, dyslipidemia, diabetes and subsequent cardiovascular disease (CVD). One of the mechanisms that connect obesity with these comorbidities is the secretion of so-called adipocytokines or adipokines by the adipose tissue itself. Most adipokines with pro-inflammatory properties are overproduced with increasing adiposity, whereas some adipokines with anti-inflammatory or insulin-sensitizing properties, like adiponectin, are decreased. This dysregulation of adipokines production may promote obesity-linked metabolic disorders and CVD. Except adipokines a wide complex network of chemicals balances pro-inflammatory and anti-inflammatory effects. AREAS COVERED In this review, we summarize the role of various adipokines and other chemicals associated with obesity and its related cardiometabolic comorbidities, with a special focus on recent evidence showing their potential role as biomarkers whose expression are indicative of obesity and its complications. EXPERT OPINION Biomarkers associated with obesity, type 2 diabetes (T2D) and CVD could prove beneficial for early identification, proper treatment and good life assurance. Unfortunately, the complexity of biological pathways interactions is such that further research is necessary before any of these markers could reach an accurate diagnostic value.
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Affiliation(s)
- Efthymia A Katsareli
- Harokopio University, Department of Dietetics and Nutrition , 70, El. Venizelou, Kallithea, 17671, Athens , Greece
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Abstract
Adiponectin concentrations exhibit strong cross-sectional relationships with obesity, inflammation, and diabetes. Adiponectin concentrations have been extensively evaluated as epidemiologic markers of diabetes and cardiovascular disease risk. In the present review we will provide an overview of these epidemiologic relationships as the backdrop for an evaluation of the clinical applications of adiponectin measurements. These include using adiponectin as an indicator of need for preventive or therapeutic intervention, as a predictor of response to therapy, and as a marker of therapeutic effectiveness. These efforts are laying the groundwork for the transition of adiponectin measurements from the laboratory to the clinic.
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Pradeep AR, Martande SS, Singh SP, Suke DK, Raju AP, Naik SB. Correlation of human S100A12 (EN-RAGE) and high-sensitivity C-reactive protein as gingival crevicular fluid and serum markers of inflammation in chronic periodontitis and type 2 diabetes. Inflamm Res 2013; 63:317-23. [DOI: 10.1007/s00011-013-0703-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 11/21/2013] [Accepted: 12/18/2013] [Indexed: 10/25/2022] Open
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Mexican American children have differential elevation of metabolic biomarkers proportional to obesity status. J Pediatr Gastroenterol Nutr 2013; 57:718-21. [PMID: 23945313 DOI: 10.1097/mpg.0b013e3182a6993d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVES There is a health disparity for obesity among Mexican Americans compared with other racial/ethnic groups. In particular, Mexican American children who are obese are likely to become obese adults. The purpose of this study was to examine traditional and nontraditional risk factors in a subset of Mexican American children before their participation in a larger clinical weight loss study. METHODS Venous blood samples were collected from self-identified Mexican American children (12-14 years old) who were assigned to 1 of 3 weight groups based on their standardized body mass index; normal weight (N = 66), overweight (N = 23), or obese (N = 39). Serum was analyzed for interleukin-6, tumor necrosis factor-α, C-peptide, ghrelin, glucagon-like protein, gastric inhibitory polypeptide-1, glucagon, insulin, leptin, macrophage chemoattractant protein 1, and pancreatic polypeptide using a Luminex MagPix-based assay. Total cholesterol, high-density lipoprotein-cholesterol, triglycerides, and glucose were analyzed using enzymatic assays. Data were analyzed for significance using separate analysis of variance tests, with significance set at P < 0.05. RESULTS Relative to normal weight and overweight children, obese children had significantly elevated C-peptide (P < 0.0001), insulin (P < 0.0001), leptin (P < 0.0001), macrophage chemoattractant protein 1 (P = 0.005), and tumor necrosis factor-α (P = 0.006). CONCLUSIONS We observed that Mexican American children as a function of body weight had elevated serum concentrations of several biomarkers that have been linked to chronic disease development in adults. More research is needed to understand how these differences affect disease risk in adulthood.
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Canivell S, Ruano EG, Sisó-Almirall A, Kostov B, González-de Paz L, Fernandez-Rebollo E, Hanzu F, Párrizas M, Novials A, Gomis R. Gastric inhibitory polypeptide receptor methylation in newly diagnosed, drug-naïve patients with type 2 diabetes: a case-control study. PLoS One 2013; 8:e75474. [PMID: 24086540 PMCID: PMC3781044 DOI: 10.1371/journal.pone.0075474] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 08/15/2013] [Indexed: 11/18/2022] Open
Abstract
GIP action in type 2 diabetic (T2D) patients is altered. We hypothesized that methylation changes could be present in GIP receptor of T2D patients. This study aimed to assess the differences in DNA methylation profile of GIPR promoter between T2D patients and age- and Body Mass Index (BMI)-matched controls. We included 93 T2D patients (cases) that were uniquely on diet (without any anti-diabetic pharmacological treatment). We matched one control (with oral glucose tolerance test negative, non diabetic), by age and BMI, for every case. Cytokines and hormones were determined by ELISA. DNA was extracted from whole blood and DNA methylation was assessed using the Sequenom EpiTYPER system. Our results showed that T2D patients were more insulin resistant and had a poorer β cell function than their controls. Fasting adiponectin was lower in T2D patients as compared to controls (7.0±3.8 µgr/mL vs. 10.0±4.2 µgr/mL). Levels of IL 12 in serum were almost double in T2D patients (52.8±58.3 pg/mL vs. 29.7±37.4 pg/mL). We found that GIPR promoter was hypomethylated in T2D patients as compared to controls. In addition, HOMA-IR and fasting glucose correlated negatively with mean methylation of GIPR promoter, especially in T2D patients. This case-control study confirms that newly diagnosed, drug-naïve T2D patients are more insulin resistant and have worse β cell function than age- and BMI-matched controls, which is partly related to changes in the insulin-sensitizing metabolites (adiponectin), in the proinflammatory profile (IL12) and we suggest in the methylation pattern of GIPR. Our study provides novel findings on GIPR promoter methylation profile which may improve our ability to understand type 2 diabetes pathogenesis.
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Affiliation(s)
- Silvia Canivell
- Department of Endocrinology and Nutrition, Hospital Clinic-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Les Corts Primary Health Care Centre, Transverse group for research in primary care-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Diabetes and Obesity Laboratory-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Elena G. Ruano
- Diabetes and Obesity Laboratory-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders, Barcelona, Spain
| | - Antoni Sisó-Almirall
- Les Corts Primary Health Care Centre, Transverse group for research in primary care-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
| | - Belchin Kostov
- Les Corts Primary Health Care Centre, Transverse group for research in primary care-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Luis González-de Paz
- Les Corts Primary Health Care Centre, Transverse group for research in primary care-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Eduardo Fernandez-Rebollo
- Diabetes and Obesity Laboratory-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders, Barcelona, Spain
| | - Felicia Hanzu
- Department of Endocrinology and Nutrition, Hospital Clinic-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Diabetes and Obesity Laboratory-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Marcelina Párrizas
- Diabetes and Obesity Laboratory-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Anna Novials
- Department of Endocrinology and Nutrition, Hospital Clinic-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Diabetes and Obesity Laboratory-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders, Barcelona, Spain
| | - Ramon Gomis
- Department of Endocrinology and Nutrition, Hospital Clinic-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Diabetes and Obesity Laboratory-Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
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Herder C, Carstensen M, Ouwens DM. Anti-inflammatory cytokines and risk of type 2 diabetes. Diabetes Obes Metab 2013; 15 Suppl 3:39-50. [PMID: 24003920 DOI: 10.1111/dom.12155] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Accepted: 05/12/2013] [Indexed: 12/12/2022]
Abstract
Proinflammatory processes have been investigated extensively in the development of type 2 diabetes, but our knowledge on anti-inflammatory proteins is rather limited. This article summarizes studies that investigated associations between circulating levels of anti-inflammatory cytokines and incident type 2 diabetes preferably in prospective epidemiological studies. Adiponectin is the only known anti-inflammatory protein whose circulating levels are decreased before type 2 diabetes. In contrast, concentrations of interleukin-1 receptor antagonist (IL-1RA), transforming growth factor-β1 (TGF-β1) and growth differentiation factor-15 (GDF-15) are increased and indicate the presence of a compensatory, but eventually futile, counter-regulation of proinflammatory stimuli. Importantly, a proof-of-principle study using recombinant IL-1RA to improve metabolic control in patients with type 2 diabetes demonstrated that a more pronounced upregulation of this protein than that found in the natural course of diabetes development may have clinical relevance. Other interesting candidates like omentin (which shows similar associations with metabolic parameters as adiponectin), interleukin-10 (IL-10) and secreted frizzled-related protein-5 (Sfrp5) are currently less well studied with sometimes conflicting results regarding their association with type 2 diabetes. Thus, further research is required to better understand the causal role of proinflammatory cytokines, hypoadiponectinaemia and the upregulation of anti-inflammatory proteins before the onset of type 2 diabetes.
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Affiliation(s)
- C Herder
- Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany.
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Gao M, Zhang C, Ma Y, Bu L, Yan L, Liu D. Hydrodynamic delivery of mIL10 gene protects mice from high-fat diet-induced obesity and glucose intolerance. Mol Ther 2013; 21:1852-61. [PMID: 23774795 DOI: 10.1038/mt.2013.125] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 05/12/2013] [Indexed: 12/20/2022] Open
Abstract
High-fat diet (HFD) induced obesity is associated with low-grade inflammation, insulin resistance (IR), and glucose intolerance. The objective of this study is to assess the effect of interleukin 10 (IL10), an anti-inflammatory cytokine, on blocking HFD-induced obesity and obesity-associated metabolic disorders by hydrodynamic delivery of IL10-containing plasmid. Animals fed a regular chow or HFD received two injections (one on day 1 and the other on day 31) of plasmids containing green fluorescence protein (GFP) or mouse IL10 (mIL10) gene. Blood concentration of mIL10 reached ~200 ng/ml on day 7 in animals receiving mIL10 plasmid DNA. The transfection efficiency of liver cells was the same in animals fed a regular chow or HFD. No difference was seen in animals on regular chow when injected with plasmids containing either gfp or mIL10 gene. Overexpression of mIL10 prevented weight gain of animals on HFD. Intraperitoneal glucose tolerance test (IPGTT) and insulin tolerance tests (ITT) showed that mIL10 maintained insulin sensitivity and prevented glucose intolerance. The mechanistic study reveals that mIL10 suppressed macrophage infiltration and reduced the development of crown-like structures in adipose tissue (AT). Collectively, these results suggest that maintaining a higher level of IL10 through gene transfer could be an effective strategy in preventing diet-induced obesity.
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Affiliation(s)
- Mingming Gao
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, Georgia, USA
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79
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Gerdle B, Forsgren MF, Bengtsson A, Leinhard OD, Sören B, Karlsson A, Brandejsky V, Lund E, Lundberg P. Decreased muscle concentrations of ATP and PCR in the quadriceps muscle of fibromyalgia patients--a 31P-MRS study. Eur J Pain 2013; 17:1205-15. [PMID: 23364928 DOI: 10.1002/j.1532-2149.2013.00284.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2012] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND METHODS Fibromyalgia (FMS) has a prevalence of approximately 2% in the population. Central alterations have been described in FMS, but there is not consensus with respect to the role of peripheral factors for the maintenance of FMS. 31P magnetic resonance spectroscopy (31P-MRS) has been used to investigate the metabolism of phosphagens in muscles of FMS patients, but the results in the literature are not in consensus. The aim was to investigate the quantitative content of phosphagens and pH in resting quadriceps muscle of patients with FMS (n = 19) and in healthy controls (CONTROLS; n = 14) using (31) P-MRS. It was also investigated whether the concentrations of these substances correlated with measures of pain and/or physical capacity. RESULTS Significantly lower concentrations of adenosine triphosphate (ATP) and phosphocreatinine (PCr; 28-29% lower) were found in FMS. No significant group differences existed with respect to inorganic phosphate (Pi), Pi/PCr and pH. The quadriceps muscle fat content was significantly higher in FMS than in CONTROLS [FMS: 9.0 ± 0.5% vs. CONTROLS 6.6 ± 0.6%; (mean ± standard error); P = 0.005]. FMS had significantly lower hand and leg capacity according to specific physical test, but there were no group differences in body mass index, subjective activity level and in aerobic fitness. In FMS, the specific physical capacity in the leg and the hand correlated positively with the concentrations of ATP and PCr; no significant correlations were found with pain intensities. CONCLUSIONS Alterations in intramuscular ATP, PCr and fat content in FMS probably reflect a combination of inactivity related to pain and dysfunction of muscle mitochondria.
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Affiliation(s)
- B Gerdle
- Rehabilitation Medicine, Department of Medicine and Health Sciences (IMH), Faculty of Health Sciences, Linköping University, Sweden.
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80
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Okada H, Ikeda T, Kajita K, Mori I, Hanamoto T, Fujioka K, Yamauchi M, Usui T, Takahashi N, Kitada Y, Taguchi K, Uno Y, Morita H, Wu Z, Nagano I, Takahashi Y, Kudo T, Furuya K, Yamada T, Ishizuka T. Effect of nematode Trichinella infection on glucose tolerance and status of macrophage in obese mice. Endocr J 2013; 60:1241-9. [PMID: 23985691 DOI: 10.1507/endocrj.ej13-0312] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
We investigated the effect of Trichinella infection on glucose tolerance and (pro- or anti-inflammatory) macrophage status in adipose tissue. Ob/ob mice and high fat-fed mice (obesity model) and C57/BL mice (control mice) were orally infected with (infected group) or without (uninfected group) 400 Trichinella per mouse. Four weeks later, the mice were subjected to investigation, which showed that fasting plasma glucose levels decreased in the infected group of C57/BL and ob/ob mice. Glucose tolerance, evaluated with intraperitoneal GTT, improved in the infected group of ob/ob mice and high fat-fed mice compared with the uninfected groups. Additional assay included anti-inflammatory macrophage (M2) markers and pro-inflammatory macrophage (M1) markers, with the aim to explore the effect of Trichinella infection on adipose tissue inflammation, since our previous study identified anti-inflammatory substances in secreted proteins by Trichinella. The result showed that mRNA levels of M2 markers, such as CD206, arginase and IL-10, increased, whereas M1 markers, such as CD11c, iNOS and IL-6, decreased in the stromal vascular fraction (SVF) isolated from epididymal fat in ob/ob mice. Residential macrophages obtained from the peritoneal lavage exhibited lower M1 markers and higher M2 markers levels in the infected group than in the uninfected group. Trichinella infection increases the ratio of M2/M1 systemically, which results in an improvement in pro-inflammatory state in adipose tissue and amelioration of glucose tolerance in obese mice.
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Affiliation(s)
- Hideyuki Okada
- Department of General Internal Medicine, Gifu University Graduate School of Medicine, Gifu 501-1194, Japan
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81
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Goktas Z, Moustaid-Moussa N, Shen CL, Boylan M, Mo H, Wang S. Effects of bariatric surgery on adipokine-induced inflammation and insulin resistance. Front Endocrinol (Lausanne) 2013; 4:69. [PMID: 23772224 PMCID: PMC3677351 DOI: 10.3389/fendo.2013.00069] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Accepted: 05/23/2013] [Indexed: 12/31/2022] Open
Abstract
Over a third of the US population is obese and at high risk for developing type 2 diabetes, insulin resistance, and other metabolic disorders. Obesity is considered a chronic low-grade inflammatory condition that is primarily attributed to expansion and inflammation of adipose tissues. Indeed, adipocytes produce and secrete numerous proinflammatory and anti-inflammatory cytokines known as adipokines. When the balance of these adipokines is shifted toward higher production of proinflammatory factors, local inflammation within adipose tissues and subsequently systemic inflammation occur. These adipokines including leptin, visfatin, resistin, apelin, vaspin, and retinol binding protein-4 can regulate inflammatory responses and contribute to the pathogenesis of diabetes. These effects are mediated by key inflammatory signaling molecules including activated serine kinases such as c-Jun N-terminal kinase and serine kinases inhibitor κB kinase and insulin signaling molecules including insulin receptor substrates, protein kinase B (PKB, also known as Akt), and nuclear factor kappa B. Bariatric surgery can decrease body weight and improve insulin resistance in morbidly obese subjects. However, despite reports suggesting reduced inflammation and weight-independent effects of bariatric surgery on glucose metabolism, mechanisms behind such improvements are not yet well understood. This review article focuses on some of these novel adipokines and discusses their changes after bariatric surgery and their relationship to insulin resistance, fat mass, inflammation, and glucose homeostasis.
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Affiliation(s)
- Zeynep Goktas
- Nutritional Sciences Program, College of Human Science, Texas Tech University, Lubbock, TX, USA
| | - Naima Moustaid-Moussa
- Nutritional Sciences Program, College of Human Science, Texas Tech University, Lubbock, TX, USA
| | - Chwan-Li Shen
- Department of Pathology, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Mallory Boylan
- Nutritional Sciences Program, College of Human Science, Texas Tech University, Lubbock, TX, USA
| | - Huanbiao Mo
- Department of Nutrition and Food Sciences, Texas Woman’s University, Denton, TX, USA
| | - Shu Wang
- Nutritional Sciences Program, College of Human Science, Texas Tech University, Lubbock, TX, USA
- *Correspondence: Shu Wang, Nutritional Science Program, College of Human Science, Texas Tech University, P.O. Box: 41240, Lubbock, TX 79409-1240, USA e-mail:
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82
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Senna MK, Sallam RAER, Ashour HS, Elarman M. Effect of weight reduction on the quality of life in obese patients with fibromyalgia syndrome: a randomized controlled trial. Clin Rheumatol 2012; 31:1591-7. [DOI: 10.1007/s10067-012-2053-x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Revised: 04/28/2012] [Accepted: 07/30/2012] [Indexed: 01/10/2023]
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83
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Stratmann B, Tschöpe D. Atrial fibrillation and diabetes mellitus. Correlation, co-existence, and coagulation therapy. Herz 2012; 37:258-63. [PMID: 22453912 DOI: 10.1007/s00059-012-3600-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Epidemiological studies have reported on the association between diabetes mellitus (DM) and subsequent risk of atrial fibrillation (AF) with inconsistent results. Individuals with DM present with an increased risk (approximate 40%) of subsequent AF compared with unaffected individuals, but the mechanisms underlying the relationship between DM and AF remains speculative. Both entities share common risk factors and, thus, seem to be closely associated with each other. Obviously, the quality of glycemic control is directly related with the risk for AF; the risk is higher with longer duration of treated diabetes and poorer glycemic control. Future research should identify approaches to reduce the risk of AF in people with diabetes by means of consequent screening and anti-coagulation therapy.
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Affiliation(s)
- B Stratmann
- Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, Georgstr. 11, 32545, Bad Oeynhausen, Deutschland
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84
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Kazama K, Usui T, Okada M, Hara Y, Yamawaki H. Omentin plays an anti-inflammatory role through inhibition of TNF-α-induced superoxide production in vascular smooth muscle cells. Eur J Pharmacol 2012; 686:116-23. [DOI: 10.1016/j.ejphar.2012.04.033] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Revised: 04/10/2012] [Accepted: 04/12/2012] [Indexed: 01/06/2023]
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85
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Ayele FT, Doumatey A, Huang H, Zhou J, Charles B, Erdos M, Adeleye J, Balogun W, Fasanmade O, Johnson T, Oli J, Okafor G, Amoah A, Eghan BA, Agyenim-Boateng K, Acheampong J, Adebamowo CA, Herbert A, Gerry N, Christman M, Chen G, Shriner D, Adeyemo A, Rotimi CN. Genome-wide associated loci influencing interleukin (IL)-10, IL-1Ra, and IL-6 levels in African Americans. Immunogenetics 2012; 64:351-9. [PMID: 22205395 PMCID: PMC3418332 DOI: 10.1007/s00251-011-0596-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Accepted: 12/12/2011] [Indexed: 12/26/2022]
Abstract
Interleukins (ILs) are key mediators of the immune response and inflammatory process. Plasma levels of IL-10, IL-1Ra, and IL-6 are associated with metabolic conditions, show large inter-individual variations, and are under strong genetic control. Therefore, elucidation of the genetic variants that influence levels of these ILs provides useful insights into mechanisms of immune response and pathogenesis of diseases. We conducted a genome-wide association study (GWAS) of IL-10, IL-1Ra, and IL-6 levels in 707 non-diabetic African Americans using 5,396,780 imputed and directly genotyped single nucleotide polymorphisms (SNPs) with adjustment for gender, age, and body mass index. IL-10 levels showed genome-wide significant associations (p < 5 × 10(-8)) with eight SNPs, the most significant of which was rs5743185 in the PMS1 gene (p = 2.30 × 10(-10)). We tested replication of SNPs that showed genome-wide significance in 425 non-diabetic individuals from West Africa, and successfully replicated rs17365948 in the YWHAZ gene (p = 0.02). IL-1Ra levels showed suggestive associations with two SNPs in the ASB3 gene (p = 2.55 × 10(-7)), ten SNPs in the IL-1 gene family (IL1F5, IL1F8, IL1F10, and IL1Ra, p = 1.04 × 10(-6) to 1.75 × 10(-6)), and 23 SNPs near the IL1A gene (p = 1.22 × 10(-6) to 1.63 × 10(-6)). We also successfully replicated rs4251961 (p = 0.009); this SNP was reported to be associated with IL-1Ra levels in a candidate gene study of Europeans. IL-6 levels showed genome-wide significant association with one SNP (RP11-314E23.1; chr6:133397598; p = 8.63 × 10(-9)). To our knowledge, this is the first GWAS on IL-10, IL-1Ra, and IL-6 levels. Follow-up of these findings may provide valuable insight into the pathobiology of IL actions and dysregulations in inflammation and human diseases.
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Affiliation(s)
- Fasil Tekola Ayele
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ayo Doumatey
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Hanxia Huang
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jie Zhou
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Bashira Charles
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Mike Erdos
- Genome Technology Branch, Molecular Genetics Section, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | | | | | | | | | - Johnnie Oli
- University of Nigeria Teaching Hospital, Enugu, Nigeria
| | | | - Albert Amoah
- University of Ghana Medical School, Department of Medicine, Accra, Ghana
| | - Benjamin A. Eghan
- University of Science and Technology, Department of Medicine, Kumasi, Ghana
| | | | - Joseph Acheampong
- University of Science and Technology, Department of Medicine, Kumasi, Ghana
| | - Clement A. Adebamowo
- Department of Epidemiology and Public Health, School of Medicine, University of Maryland, Baltimore, MD, USA
| | - Alan Herbert
- Department of Genetics and Genomics, Boston University, Boston, MA, USA
| | - Norman Gerry
- Coriell Institute for Medical Research, Camden, NJ, USA
| | | | - Guanjie Chen
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Daniel Shriner
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Adebowale Adeyemo
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Charles N. Rotimi
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
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86
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Nagasaki H, Yoshimura T, Aoki N. Real-time monitoring of inflammation status in 3T3-L1 adipocytes possessing a secretory Gaussia luciferase gene under the control of nuclear factor-kappa B response element. Biochem Biophys Res Commun 2012; 420:623-7. [DOI: 10.1016/j.bbrc.2012.03.049] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2012] [Accepted: 03/12/2012] [Indexed: 01/22/2023]
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87
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McFarlin BK, Johnston CJ, Carpenter KC, Davidson T, Moreno JL, Strohacker K, Breslin WL, Foreyt JP. A one-year school-based diet/exercise intervention improves non-traditional disease biomarkers in Mexican-American children. MATERNAL AND CHILD NUTRITION 2012; 9:524-32. [PMID: 22458649 DOI: 10.1111/j.1740-8709.2011.00398.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
School-based interventions are an effective way to treat childhood obesity. The purpose of the present study was to biologically validate an established school-based intervention designed to reduce standardised body mass index (zBMI) over a period of 12 months. This intervention focused on a subset of Mexican-American children who were participating in a larger clinical weight loss study. Plasma samples were analysed from self-identified Mexican-American children (12-14 years) who were randomised to either a school-based intervention (IN, n = 152) or self-help control (CN, n = 69). Treatment was 4 days week⁻¹ of exercise (45 min day⁻¹) and 1 day week⁻¹ of nutritional counselling for 6 months. Fasting (>8 h) blood samples were collected at baseline, 6 months (end of active intervention) and 12 months (6 months after the end of the active intervention). Plasma resistin, adiponectin and leptin concentration were measured using a multiplex assay. Separate linear mixed models and a P < 0.05 were used to test for significance. Significant group × time interactions were found for resistin (P < 0.0001), adiponectin (P = 0.001) and leptin (P = 0.013). For resistin, IN was 12% lower at 6 months than CN. Adiponectin concentration in IN was greater at 6 months (26%) and 12 months (8%) than CN. Leptin concentration was 22% lower for IN at 12 months than CN. We have previously reported that our school-based intervention reduced zBMI and now reported alterations in biologically relevant disease biomarkers. Some of the observed changes were only present at the end of the active intervention (resistin), while others persisted until 12 months (leptin and adiponectin). These changes underscore the effectiveness of our school-based intervention at not only improving zBMI but also at reducing disease risk.
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Affiliation(s)
- Brian Keith McFarlin
- Department of Health and Human Performance, University of Houston, Houston, Texas, USA Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA Department of Behavioral Medicine, Baylor College of Medicine, Houston, Texas, USA
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88
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Yang Q, Eskurza I, Kiernan UA, Phillips DA, Blüher M, Graham TE, Kahn BB. Quantitative measurement of full-length and C-terminal proteolyzed RBP4 in serum of normal and insulin-resistant humans using a novel mass spectrometry immunoassay. Endocrinology 2012; 153:1519-27. [PMID: 22253430 PMCID: PMC3281532 DOI: 10.1210/en.2011-1750] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Serum retinol-binding protein 4 (RBP4) levels are increased in insulin-resistant humans and correlate with severity of insulin resistance in metabolic syndrome. Quantitative Western blotting (qWestern) has been the most accurate method for serum RBP4 measurements, but qWestern is technically complex and labor intensive. The lack of a reliable, high-throughput method for RBP4 measurements has resulted in variability in findings in insulin-resistant humans. Many commonly used ELISAs have limited dynamic range. Neither the current ELISAs nor qWestern distinguish among full-length and carboxyl terminus proteolyzed forms of circulating RBP4 that are altered in different medical conditions. Here, we report the development of a novel quantitative mass spectrometry immunoaffinity assay (qMSIA) to measure full-length and proteolyzed forms of RBP4. qMSIA and qWestern of RBP4 were performed in identical serum aliquots from insulin-sensitive/normoglycemic or insulin-resistant humans with impaired glucose tolerance or type 2 diabetes. Total RBP4 qMSIA measurements were highly similar to qWestern and correlated equally well with clinical severity of insulin resistance (assessed by clamp glucose disposal rate, r = -0.74), hemoglobin A1c (r = 0.63), triglyceride/high-density lipoprotein (r = 0.55), waist/hip (r = 0.61), and systolic blood pressure (r = 0.53, all P < 0.001). Proteolyzed forms of RBP4 accounted for up to 50% of total RBP4 in insulin-resistant subjects, and des(Leu)-RBP4 (cleavage of last leucine) correlated highly with insulin resistance (assessed by glucose disposal rate, r = -0.69). In multiple regression analysis, insulin resistance but not glomerular filtration rate was the strongest, independent predictor of serum RBP4 levels. Thus, qMSIA provides a novel tool for accurately measuring serum RBP4 levels as a biomarker for severity of insulin resistance and risk for type 2 diabetes and metabolic syndrome.
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Affiliation(s)
- Qin Yang
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center, CLS 747, 330 Brookline Avenue, Boston, Massachusetts 02215, USA
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Krishnapuram R, Kirk-Ballard H, Dhurandhar EJ, Dubuisson O, Messier V, Rabasa-Lhoret R, Hegde V, Aggarwal S, Dhurandhar NV. Insulin receptor-independent upregulation of cellular glucose uptake. Int J Obes (Lond) 2012; 37:146-53. [PMID: 22310476 PMCID: PMC4841456 DOI: 10.1038/ijo.2012.6] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND Cellular glucose uptake can be enhanced by up-regulating Ras signaling in either insulin dependent or independent manner. In presence of insulin and intact insulin signaling, Ras plays a negligible role in glucose uptake. Conversely, when insulin signaling is impaired in obesity or diabetes, the insulin-independent Ras pathway may be valuable for enhancing glucose disposal. We previously reported that Ad36, a human adenovirus, enhances cellular glucose uptake by up-regulating the Ras/Glut4 pathway. Here, we investigated if Ad36-up-regulated Ras via the insulin-independent pathway, to enhance glucose uptake. Furthermore, uncontrolled up-regulation of Ras is linked with oncogenic cell transformation, if the tumor suppressor gene p53 is also down regulated. Hence, we determined if up-regulation of Ras by Ad36 would induce oncogenic cell transformation. Finally, we determined the relevance of Ad36 to insulin resistance in humans. METHODS Insulin receptor (IR) was knocked down with siRNA in 3T3-L1 adipocytes, to determine if Ad36 increases the Ras/Glut4 pathway and glucose uptake without IR-signaling. Next, the effects of Ad36 on cell transformation and p53 abundance were determined. Finally, overweight or obese women were screened for seropositivty to Ad36, as an indicator of natural Ad36 infection. Associations of Ad36 infection with adiposity and C-Reactive proteins (CRP) –two key markers of insulin resistance, and with glucose disposal, were determined. RESULTS Unaffected by IR knock-down, Ad36 significantly increased the Ras pathway, Glut4 translocation, and glucose uptake in 3T3-L1 adipocytes. Despite Ras up-regulation, Ad36 did not transform 3T3-L1 cells. This may be because Ad36 significantly increased p53 protein in 3T3-L1 cells or mice adipose tissue. Ad36 seropositivity was associated with greater adiposity and CRP levels, yet a significantly higher systemic glucose disposal rate. CONCLUSIONS Overall, the study offers Ras/Glut4 pathway as an alternate to enhance glucose disposal when insulin signaling is impaired, and, importantly, provides Ad36 as a tool to understand the modulation of that pathway.
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Affiliation(s)
- R Krishnapuram
- Infections and Obesity Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA 70808, USA
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90
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Neuhouser ML, Schwarz Y, Wang C, Breymeyer K, Coronado G, Wang CY, Noar K, Song X, Lampe JW. A low-glycemic load diet reduces serum C-reactive protein and modestly increases adiponectin in overweight and obese adults. J Nutr 2012; 142:369-74. [PMID: 22190020 PMCID: PMC3260063 DOI: 10.3945/jn.111.149807] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Low-glycemic load (GL) diets improve insulin resistance and glucose homeostasis in individuals with diabetes. Less is known about whether low-GL diets, independent of weight loss, improve the health profile for persons without diabetes or other preexisting conditions. We conducted a randomized, cross-over feeding study testing low- compared to High-GL diets on biomarkers of inflammation and adiposity in healthy adults. Eighty participants (n = 40 with BMI 18.5-24.9 kg/m²; n = 40 with BMI 28.0-40.0 kg/m²) completed two 28-d feeding periods in random order where one period was a high-GL diet (mean GL/d = 250) and the other a low-GL diet (mean GL/d = 125). Diets were isocaloric with identical macronutrient content (as percent energy). All food was provided and participants maintained weight and usual physical activity. Height, weight, and DXA were measured at study entry and weight assessed again thrice per week. Blood was drawn from fasting participants at the beginning and end of each feeding period and serum concentrations of high-sensitivity CRP, serum amyloid A, IL-6, leptin, and adiponectin were measured. Linear mixed models tested the intervention effect on the biomarkers; models were adjusted for baseline biomarker concentrations, diet sequence, feeding period, age, sex, and body fat mass. Among participants with high-body fat mass (>32.0% for males and >25.0% for females), the low-GL diet reduced CRP (P = 0.02) and marginally increased adiponectin (P = 0.06). In conclusion, carbohydrate quality, independent of energy, is important. Dietary patterns emphasizing low-GL foods may improve the inflammatory and adipokine profiles of overweight and obese individuals.
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Affiliation(s)
- Marian L. Neuhouser
- Cancer Prevention Program, Division of Public Health Sciences,Department of Epidemiology and Interdisciplinary Program in Nutritional Sciences, University of Washington, Seattle, WA,To whom correspondence should be addressed. E-mail:
| | - Yvonne Schwarz
- Cancer Prevention Program, Division of Public Health Sciences
| | - Chiachi Wang
- Cancer Prevention Program, Division of Public Health Sciences
| | - Kara Breymeyer
- Cancer Prevention Program, Division of Public Health Sciences
| | - Gloria Coronado
- Cancer Prevention Program, Division of Public Health Sciences,Center for Health Research, Kaiser Permanente Northwest, Portland, OR
| | - Chin-Yun Wang
- Program in Biostatistics, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Karen Noar
- Cancer Prevention Program, Division of Public Health Sciences
| | - Xiaoling Song
- Cancer Prevention Program, Division of Public Health Sciences
| | - Johanna W. Lampe
- Cancer Prevention Program, Division of Public Health Sciences,Department of Epidemiology and Interdisciplinary Program in Nutritional Sciences, University of Washington, Seattle, WA
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91
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Charles BA, Doumatey A, Huang H, Zhou J, Chen G, Shriner D, Adeyemo A, Rotimi CN. The roles of IL-6, IL-10, and IL-1RA in obesity and insulin resistance in African-Americans. J Clin Endocrinol Metab 2011; 96:E2018-22. [PMID: 21956416 PMCID: PMC3232609 DOI: 10.1210/jc.2011-1497] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE The aim of the study was to investigate the associations between IL-1 receptor antagonist (IL-1RA), IL-6, IL-10, measures of obesity, and insulin resistance in African-Americans. RESEARCH DESIGN AND METHODS Nondiabetic participants (n = 1025) of the Howard University Family Study were investigated for associations between serum IL (IL-1RA, IL-6, IL-10), measures of obesity, and insulin resistance, with adjustment for age and sex. Measures of obesity included body mass index, waist circumference, hip circumference, waist-to-hip ratio, and percent fat mass. Insulin resistance was assessed using the homeostasis model assessment of insulin resistance (HOMA-IR). Data were analyzed with R statistical software using linear regression and likelihood ratio tests. RESULTS IL-1RA and IL-6 were associated with measures of obesity and insulin resistance, explaining 4-12.7% of the variance observed (P values < 0.001). IL-1RA was bimodally distributed and therefore was analyzed based on grouping those with low vs. high IL-1RA levels. High IL-1RA explained up to 20 and 12% of the variance in measures of obesity and HOMA-IR, respectively. Among the IL, only high IL-1RA improved the fit of models regressing HOMA-IR on measures of obesity. In contrast, all measures of obesity improved the fit of models regressing HOMA-IR on IL. IL-10 was not associated with obesity measures or HOMA-IR. CONCLUSIONS High IL-1RA levels and obesity measures are associated with HOMA-IR in this population-based sample of African-Americans. The results suggest that obesity and increased levels of IL-1RA both contribute to the development of insulin resistance.
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Affiliation(s)
- Bashira A Charles
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892-5635, USA
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92
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Wildman RP, Kaplan R, Manson JE, Rajkovic A, Connelly SA, Mackey RH, Tinker LF, Curb JD, Eaton CB, Wassertheil-Smoller S. Body size phenotypes and inflammation in the Women's Health Initiative Observational Study. Obesity (Silver Spring) 2011; 19:1482-91. [PMID: 21233809 PMCID: PMC3124587 DOI: 10.1038/oby.2010.332] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Individuals with "metabolically benign" obesity (obesity unaccompanied by hypertension, dyslipidemia, and diabetes) are not at elevated 10-year risk of cardiovascular disease (CVD) compared to normal weight individuals. It remains unclear whether these obese individuals or normal weight individuals with clustering of cardiometabolic factors display heightened immune activity. Therefore, we characterized levels of acute-phase reactants (C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), white blood cell (WBC) count), adhesion molecules (E-selectin, vascular cell adhesion molecule-1), and coagulation products (fibrinogen, plasminogen activator inhibitor-1 (PAI-1)) among four body size phenotypes (normal weight with 0/1 vs. ≥2 metabolic syndrome components/diabetes and overweight/obesity with 0/1 vs. ≥2 metabolic syndrome components/diabetes) in cross-sectional analyses of 1,889 postmenopausal women from the Women's Health Initiative Observational Study (WHI-OS) nested case-control stroke study. Higher levels of all three inflammatory marker categories were found among women with overweight/obesity or ≥2 metabolic syndrome components or diabetes. Compared to normal weight women with 0 or 1 metabolic syndrome components, normal weight women with ≥2 metabolic syndrome components or diabetes were more likely to have ≥3 inflammatory markers in the top quartile (multivariate odds ratio (OR) 2.0, 95% confidence interval (CI): 1.3-3.0), as were overweight/obese women with 0 or 1 metabolic syndrome components (OR 2.3; 95% CI: 1.5-3.5). Overweight/obese women with ≥2 metabolic syndrome components or diabetes had the highest OR (OR 4.2; 95% CI: 2.9-5.9). Despite findings that metabolically benign obese individuals are not at increased 10-year risk of CVD compared to normal weight individuals, the current results suggest that overweight/obese women without clustering of cardiometabolic risk factors still possess abnormal levels of inflammatory markers.
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Affiliation(s)
- Rachel P Wildman
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York, USA.
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Kim JB, Jung MH, Cho JY, Park JW, Suh JY, Lee JM. The influence of type 2 diabetes mellitus on the expression of inflammatory mediators and tissue inhibitor of metalloproteinases-2 in human chronic periodontitis. J Periodontal Implant Sci 2011; 41:109-16. [PMID: 21811685 PMCID: PMC3139043 DOI: 10.5051/jpis.2011.41.3.109] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Accepted: 05/26/2011] [Indexed: 11/08/2022] Open
Abstract
PURPOSE The purpose of this study was to compare and quantify the expression of C-reactive protein (CRP), matrix metalloproteinase (MMP)-14, and tissue inhibitor of metalloproteinases (TIMP)-2 in gingival tissues of patients with chronic periodontitis accompanied with inflammatory reaction related to alveolar bone resorption with or without type 2 diabetes mellitus (DM). METHODS Twelve patients with type 2 DM and chronic periodontitis (group 3), twelve patients with chronic periodontitis (group 2), and twelve healthy individuals (group 1) were included in the study. Gingival tissue biopsies were collected from each patient and from healthy individuals at the time of periodontal surgery (including surgical crown lengthening) or tooth extraction. The concentrations of cytokines were determined by a western blot analysis. RESULTS The expression levels of CRP and MMP-14 increased in group 2 and 3, and they were highest in group 3. The expressions of TIMP-2 also increased in group 2 and 3. CONCLUSIONS This study demonstrated that the expression levels of CRP, MMP-14, and TIMP-2 might be inflammatory markers in periodontal inflamed tissue. It can be assumed that CRP, MMP-14, and TIMP-2 may be partly involved in the progression of periodontal inflammation associated to type 2 DM.
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Affiliation(s)
- Jae-Bung Kim
- Department of Periodontology, Kyungpook National University School of Dentistry, Daegu, Korea
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94
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Taiyeb-Ali TB, Raman RPC, Vaithilingam RD. Relationship between periodontal disease and diabetes mellitus: an Asian perspective. Periodontol 2000 2011; 56:258-68. [DOI: 10.1111/j.1600-0757.2010.00370.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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95
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Early effects of gastric bypass on endothelial function, inflammation, and cardiovascular risk in obese patients. Surg Endosc 2011; 25:2650-9. [PMID: 21416179 DOI: 10.1007/s00464-011-1620-6] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Accepted: 02/03/2011] [Indexed: 01/22/2023]
Abstract
BACKGROUND Obesity is associated with a chronic low-grade inflammatory state, insulin resistance, and endothelial dysfunction, all of which contribute to increased risk of cardiovascular disease. We hypothesized that gastric bypass would produce rapid improvements in endothelial function, reduce inflammation, and lead to a decrease in cardiovascular risk. METHODS We performed a prospective study of morbidly obese patients who underwent laparoscopic Roux-en-Y gastric bypass (RYGB). Clinical data, biochemical markers of inflammation, and parameters indicative of cardiovascular risk were collected preoperatively and at 3 and 6 months postoperatively. Metabolic and inflammatory mediators that were quantified included C-reactive protein, fibrinogen, PAI-1, IL-6, IL-10, IL-1Ra, adiponectin, leptin, triglycerides, total cholesterol, HDL, LDL, glucose, insulin, and HbA1c. Brachial artery reactivity testing (BART) was performed to assess peripheral arterial endothelial function, and Framingham cardiovascular risk score (FRS) was calculated on all study participants pre- and postoperatively. RESULTS Fifteen patients (11 female) were enrolled (age = 49.2 ± 10.4 years; BMI = 48.1 ± 5.3 kg/m(2)). Six months post RYGB, mean BMI decreased to 35.4 ± 4.5, corresponding to 51.7% excess weight loss (P < 0.001). Mean waist circumference decreased significantly from 132 cm at baseline to 110 cm at 3 months (P = 0.003) and 107 cm at 6 months (P < 0.001). Six months after RYGB, weight loss led to significant improvements in clinical parameters indicative of cardiovascular disease or risk, including brachial artery diameter, endothelial independent vasodilation, and FRS. Favorable improvements in the proinflammatory markers CRP (P = 0.01) and leptin (P = 0.005), the anti-inflammatory mediator adiponectin (P = 0.002), and insulin sensitivity (HOMA-IR, P = 0.007) were evident at 3 months. At 6 months, improvements in CRP, leptin, and fasting insulin were maintained and fibrinogen levels also decreased (P = 0.047). Adiponectin continued to increase at 6 months (P = 0.004). CONCLUSION Gastric bypass is associated with early reversal of endothelial dysfunction, a more favorable inflammatory milieu, and, most importantly, a reduction in cardiovascular risk.
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Kim SH, Reaven G, Lindley S. Relationship between insulin resistance and C-reactive protein in a patient population treated with second generation antipsychotic medications. Int Clin Psychopharmacol 2011; 26:43-7. [PMID: 20861740 PMCID: PMC4570472 DOI: 10.1097/yic.0b013e3283400cd3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
C-reactive protein (CRP) is an inflammatory marker associated with obesity, insulin resistance, and cardiovascular disease. A recent study found CRP levels to be higher in individuals treated with certain antipsychotic medications such as olanzapine; however, it is not clear whether this is associated directly with drug intake or indirectly with drug-associated weight gain and insulin resistance. The objective of this study was to explore the potential predictors of CRP including insulin resistance, components of the metabolic syndrome, psychiatric diagnosis, and antipsychotic medication in patients treated with antipsychotics. Sixty-four outpatients without diabetes being treated with a single second generation antipsychotic medication had direct measurements of insulin resistance at the end of a 180-min infusion of glucose, insulin, and octreotide (insulin suppression test) as well as components of the metabolic syndrome. Insulin resistance was the strongest predictor of CRP (r=0.52, P<0.001). When adjusted for insulin resistance, there was no significant relationship between CRP and any of the components of the metabolic syndrome criteria, specific drug treatment or psychiatric diagnoses. In conclusion, insulin resistance is strongly associated with CRP levels and likely contributes to earlier associations between CRP and certain antipsychotic treatments.
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Affiliation(s)
- Sun H Kim
- Departments of aMedicine bPsychiatry, Stanford University School of Medicine, Stanford cVeterans Affairs, Palo Alto Health Care System, Palo Alto, California, USA.
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Wolsk E, Mygind H, Grøndahl TS, Pedersen BK, van Hall G. IL-6 selectively stimulates fat metabolism in human skeletal muscle. Am J Physiol Endocrinol Metab 2010; 299:E832-40. [PMID: 20823453 DOI: 10.1152/ajpendo.00328.2010] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Interleukin (IL)-6 is chronically elevated in type 2 diabetes but also during exercise. However, the exact metabolic role, and hence the physiological significance, has not been elucidated. The objective of this study was to investigate the in vivo effect of recombinant human (rh) IL-6 on human fat and glucose metabolism and signaling of both adipose tissue and skeletal muscle. Eight healthy postabsorptive males were infused with either rhIL-6 or saline for 4 h, eliciting IL-6 levels of ∼40 and ∼1 pg/ml, respectively. Systemic, skeletal muscle, and adipose tissue fat and glucose metabolism was assessed before, during, and 2 h after cessation of the infusion. Glucose metabolism was unaffected by rhIL-6. In contrast, rhIL-6 increased systemic fatty acid oxidation approximately twofold after 60 min, and it remained elevated even 2 h after the infusion. The increase in oxidation was followed by an increase in systemic lipolysis. Adipose tissue lipolysis and fatty acid kinetics were unchanged with rhIL-6 compared with saline infusion. Conversely, rhIL-6 infusion caused an increase in skeletal muscle unidirectional fatty acid and glycerol release, indicative of an increase in lipolysis. The increased lipolysis in muscle could account for the systemic changes. Skeletal muscle signaling increased after 1 h of rhIL-6 infusion, indicated by a fourfold increase in the phosphorylated signal transducer and activator of transcription (STAT) 3-to-STAT3 ratio, whereas no changes in phosphorylated AMP-activated protein kinase or acetyl-CoA carboxylase levels could be observed. Our findings suggest that an acute increase in IL-6 at a normophysiological level selectively stimulates lipolysis in skeletal muscle, whereas adipose tissue is unaffected.
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Affiliation(s)
- Emil Wolsk
- The Centre of Inflammation and Metabolism, Department of Infectious Diseases, University of Copenhagen, Denmark.
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Diabetes mellitus, glycemic control, and risk of atrial fibrillation. J Gen Intern Med 2010; 25:853-8. [PMID: 20405332 PMCID: PMC2896589 DOI: 10.1007/s11606-010-1340-y] [Citation(s) in RCA: 201] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2009] [Revised: 02/15/2010] [Accepted: 03/17/2010] [Indexed: 10/19/2022]
Abstract
BACKGROUND Diabetes may be an independent risk factor for atrial fibrillation. However, results from prior studies are in conflict, and no study has examined diabetes duration or glycemic control. OBJECTIVE To examine the association of diabetes with risk of atrial fibrillation and to describe risk according to diabetes duration and glycemic control. DESIGN A population-based case-control study. PARTICIPANTS Within a large, integrated healthcare delivery system, we identified 1,410 people with newly-recognized atrial fibrillation from ICD-9 codes and validated cases by review of medical records. 2,203 controls without atrial fibrillation were selected from enrollment lists, stratified on age, sex, hypertension, and calendar year. MAIN MEASURES Information on atrial fibrillation, diabetes and other characteristics came from medical records. Diabetes was defined based on physician diagnoses recorded in the medical record, and pharmacologically treated diabetes was defined as receiving antihyperglycemic medications. Information about hemoglobin A1c levels came from computerized laboratory data. KEY RESULTS Among people with atrial fibrillation, 252/1410 (17.9%) had pharmacologically treated diabetes compared to 311/2203 (14.1%) of controls. The adjusted OR for atrial fibrillation was 1.40 (95% CI 1.15-1.71) for people with treated diabetes compared to those without diabetes. Among those with treated diabetes, the risk of developing atrial fibrillation was 3% higher for each additional year of diabetes duration (95% CI 1-6%). Compared to people without diabetes, the adjusted OR for people with treated diabetes with average hemoglobin A1c <or=7 was 1.06 (95% CI 0.74-1.51); for A1c >7 but <or=8, 1.48 (1.09-2.01); for A1c >8 but <or=9, 1.46 (1.02-2.08); and for A1c >9, 1.96 (1.22-3.14). CONCLUSIONS Diabetes was associated with higher risk of developing atrial fibrillation, and risk was higher with longer duration of treated diabetes and worse glycemic control. Future research should identify and test approaches to reduce the risk of atrial fibrillation in people with diabetes.
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Relationship between fibromyalgia and obesity in pain, function, mood, and sleep. THE JOURNAL OF PAIN 2010; 11:1329-37. [PMID: 20542742 DOI: 10.1016/j.jpain.2010.03.006] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2009] [Revised: 02/25/2010] [Accepted: 03/09/2010] [Indexed: 11/20/2022]
Abstract
UNLABELLED Fibromyalgia syndrome (FMS) is a prevalent and disabling chronic pain disorder. Past research suggests that obesity is a common comorbidity and may be related to the severity of FMS. The main objective of the present study was to evaluate the relationships between FMS and obesity in the multiple FMS-related domains: hyperalgesia, symptoms, physical abilities, and sleep. A total of 215 FMS patients completed a set of self-report inventories to assess FMS-related symptoms and underwent the tender point (TP) examination, physical performance testing, and 7-day home sleep assessment. Forty-seven percent of our sample was obese and an additional 30% was overweight. Obesity was related significantly to greater pain sensitivity to TP palpation particularly in the lower body areas, reduced physical strength and lower-body flexibility, shorter sleep duration, and greater restlessness during sleep. The results confirmed that obesity is a prevalent comorbidity of FMS that may contribute to the severity of the problem. Potential mechanisms underlying the relationship are discussed. PERSPECTIVE This report presents how obesity may be interrelated to fibromyalgia pain, disability, and sleep. We found that obesity is common in FMS. Approximately half of our patients were obese and an additional 30% were overweight. We also found that obesity in FMS was associated with greater pain sensitivity, poorer sleep quality, and reduced physical strength and flexibility. The results suggest that obesity may aggregate FMS and weight management may need to be incorporated into treatments.
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Hernandez ME, Becerril E, Perez M, Leff P, Anton B, Estrada S, Estrada I, Sarasa M, Serrano E, Pavon L. Proinflammatory cytokine levels in fibromyalgia patients are independent of body mass index. BMC Res Notes 2010; 3:156. [PMID: 20525285 PMCID: PMC2891797 DOI: 10.1186/1756-0500-3-156] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2010] [Accepted: 06/03/2010] [Indexed: 01/25/2023] Open
Abstract
Background Fibromyalgia (FM) is characterized by chronic, widespread muscular pain and tenderness and is generally associated with other somatic and psychological symptoms. Further, circulatory levels of proinflammatory cytokines (IL-1β, TNF-α, and IL-6) may be altered in FM patients, possibly in association with their symptoms. Recently, rises in BMI have been suggested to contribute to increased circulating levels of proinflammatory cytokines in FM patients. Our aim was to measure the circulatory levels of proinflammatory cytokines to determine the influence of BMI on these levels in FM patients and healthy volunteers (HVs). In Spanish FM patients (n = 64) and HVs (n = 25), we measured BMI and serum concentrations of proinflammatory cytokines by capture ELISA. Findings There were significant differences in BMI levels between FM patients (26.40 ± 4.46) and HVs (23.64 ± 3.45) and significant increase in IL-6 in FM patients (16.28 ± 8.13 vs 0.92 ± 0.32 pg/ml) (P < 0.001). IL-1β and TNF-α decreased in FM patients compared with HVs. By ANCOVA, there was no significant association between BMI and TNF-α (F = 0.098, p = 0.75) or IL-6 (F = 0.221, p = 0.63) levels in FM patients. Conclusions Our analysis in FM patients of BMI as a covariate of proinflammatory cytokines levels showed that serum TNF-α and IL-6 levels are independent of BMI. Further studies are necessary to dissect these findings and their implication in future therapeutic approaches for FM patients.
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Affiliation(s)
- Maria E Hernandez
- Department of Psychoimmunology, National Institute of Psychiatry "Ramon de la Fuente", Mexico.
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