1
|
Kondratyeva LV, Gorbunova YN, Panafidina TA, Popkova TV. Hyperleptinemia as a Marker of Various Phenotypes of Obesity and Overweight in Women with Rheumatoid Arthritis and Systemic Lupus Erythematosus. DOKL BIOCHEM BIOPHYS 2024; 517:182-194. [PMID: 38861143 DOI: 10.1134/s1607672924700893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/08/2024] [Accepted: 04/08/2024] [Indexed: 06/12/2024]
Abstract
The objective of the study was to identify different phenotypes of overweight in women with systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) based on body mass index (BMI) and serum leptin levels, as well as to determine the frequencies of various metabolic disorders, hypertension, and cardiovascular complications (CVCs) in individual phenotypes. The study included 50 women with RA and 46 with SLE aged 18 to 65 years without a history of diabetes and fasting hyperglycemia. In all patients, the concentration of leptin was determined by ELISA, the concentration of insulin was determined by electrochemiluminescence analysis, and the HOMA-IR index was calculated. Hyperleptinemia was diagnosed at leptin concentrations > 11.1 ng/mL; insulin resistance (IR), at HOMA-IR values ≥ 2.77. Three main phenotypes of overweight were distinguished: "classic" (BMI ≥ 25 kg/m2 + hyperleptinemia), "healthy" (BMI ≥ 25 kg/m2, without hyperleptinemia), "hidden" or "latent" (BMI < 25 kg/m2 + hyperleptinemia), as well as "normal weight" (BMI < 25 kg/m2, without hyperleptinemia). Patients with RA and SLE were similar in age (p = 0.4), disease duration (p = 0.2) and BMI (p = 0.5). Hyperleptinemia was found in 46% of women with RA and in 74% of women with SLE (p = 0.005), and IR was found in 10 and 22% of patients, respectively (p = 0.2). The "classic" phenotype of overweight was diagnosed in 30%, "healthy" in 8%, and "hidden" in 16% of cases with RA and in 44%, 0%, and 30% of cases with SLE, respectively. IR was found in 3% and hypertension in 6% of patients with "normal weight." With the "classic" phenotype, IR (29%) and hypertension (66%) were more common than with "normal weight" (p < 0.01 in all cases); with the "hidden" phenotype, significant differences were obtained only in hypertension frequency (45%; p = 0.0012), but not IR (18%). Three out of four women with a history of cardiovascular complications suffered from "classic" overweight, and one patient had a "normal weight." In women with SLE up to 65 years of age, the frequency of hyperleptinemia, but not IR, is higher than in patients with RA. In both diseases, the "classic" overweight phenotype is most common. In RA, a "hidden" phenotype was detected less often than in SLE, at the same time, a "healthy" phenotype is not characteristic of SLE. The frequency of metabolic disorders and hypertension is low with the "normal weight" and "healthy" phenotype, high with the "classic" phenotype, and intermediate with the "hidden" phenotype.
Collapse
Affiliation(s)
- L V Kondratyeva
- Nasonova Research Institute of Rheumatology, Moscow, Russia.
| | - Yu N Gorbunova
- Nasonova Research Institute of Rheumatology, Moscow, Russia
| | - T A Panafidina
- Nasonova Research Institute of Rheumatology, Moscow, Russia
| | - T V Popkova
- Nasonova Research Institute of Rheumatology, Moscow, Russia
| |
Collapse
|
2
|
Gao Z, Wei H, Xiao J, Huang W. Mediators between body mass index and atrial fibrillation: a Mendelian randomization study. Front Nutr 2024; 11:1369594. [PMID: 38840698 PMCID: PMC11150702 DOI: 10.3389/fnut.2024.1369594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 05/09/2024] [Indexed: 06/07/2024] Open
Abstract
Background Although obesity is a recognized risk factor of atrial fibrillation (AF), the mechanisms are not fully understood. Objective We aimed to identify the potential mediators between body mass index (BMI) and AF. Methods We conducted a two-sample Mendelian randomization (MR) analysis using publicly available summary-level data from genome-wide association studies. Univariable MR analyses were applied to identify potential mediators, and then the multivariable MR analyses were conducted to explore the mediated roles of circulating biomarkers, metabolic markers and comorbidities in the association between BMI and AF. Results This MR study found a significant causal association between BMI and AF (OR = 1.41, 95% CI = 1.33-1.50; p < 0.001), which was attenuated to 1.21 (95% CI = 1.03-1.43) after being adjusted for leptin, in which 48.78% excess risk was mediated. After further adjustment for leptin and some cormorbidies, the association was attenuated to null (adjusted for leptin and sleep apnoea: OR=1.05, 95% CI = 0.85-1.30; adjusted for leptin and coronary heart disease: OR = 1.08, 95% CI = 0.90-1.30; adjusted for leptin and systolic blood pressure: OR = 1.11, 95% CI = 0.88-1.41), resulting in 87.80%, 80.49% and 73.17% excess risk being mediated, respectively. Conclusion These results identified an important mediated role of leptin, particularly for individuals with sleep apnoea, coronary heart disease or hypertension, providing some clues for the underlying mechanisms behind the impact of obesity on AF risk.
Collapse
Affiliation(s)
- Ziting Gao
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, China
| | - Hongye Wei
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, China
| | - Jun Xiao
- Department of Cardiovascular Surgery, Union Hospital, Fujian Medical University, Fuzhou, China
- Key Laboratory of Cardio-Thoracic Surgery, Fujian Medical University, Fuzhou, China
| | - Wuqing Huang
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, China
| |
Collapse
|
3
|
Hao M, Lv Y, Liu S, Guo W. The New Challenge of Obesity - Obesity-Associated Nephropathy. Diabetes Metab Syndr Obes 2024; 17:1957-1971. [PMID: 38737387 PMCID: PMC11086398 DOI: 10.2147/dmso.s433649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 02/28/2024] [Indexed: 05/14/2024] Open
Abstract
In recent years, obesity has become one of the major diseases that affect human health and consume human health resources, especially when it causes comorbidities such as hypertension, diabetes, cardiovascular disease and kidney disease. Many studies have demonstrated that obesity is associated with the development of chronic kidney disease and can exacerbate the progression of end-stage renal disease. This review described the mechanisms associated with the development of obesity-associated nephropathy and the current relevant therapeutic modalities, with the aim of finding new therapeutic targets for obesity-associated nephropathy. The mechanisms of obesity-induced renal injury include, in addition to the traditional alterations in renal hemodynamics, the involvement of various mechanisms such as macrophage infiltration in adipose tissue, alterations in adipokines (leptin and adiponectin), and ectopic deposition of lipids. At present, there is no "point-to-point" treatment for obesity-induced kidney injury. The renin-angiotensin-aldosterone system (RAAS) inhibitors, sodium-dependent glucose transporter 2 (SGLT-2) inhibitors and bariatric surgery described in this review can reduce urinary protein to varying degrees and delay the progression of kidney disease. In addition, recent studies on the therapeutic effects of intestinal flora on obesity may reduce the incidence of obesity-related kidney disease from the perspective of primary prevention. Both of these interventions have their own advantages and disadvantages, so the continuous search for the mechanism of obesity-induced related kidney disease will be extremely helpful for the future treatment of obesity-related kidney disease.
Collapse
Affiliation(s)
- Mengjin Hao
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, Jilin, 130021, People’s Republic of China
- Department of Endocrinology, Jining No. 1 People’s Hospital, Jining, Shandong, 272000, People’s Republic of China
| | - You Lv
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, Jilin, 130021, People’s Republic of China
| | - Siyuan Liu
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, Jilin, 130021, People’s Republic of China
| | - Weiying Guo
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, Jilin, 130021, People’s Republic of China
| |
Collapse
|
4
|
Luchsinger JA, Pang D, Krinsky-McHale SJ, Schupf N, Lee JH, Silverman W, Zigman WB. Obesity, diabetes and their metabolic correlates in middle-aged adults with Down syndrome. JOURNAL OF INTELLECTUAL DISABILITY RESEARCH : JIDR 2024; 68:212-222. [PMID: 37899501 PMCID: PMC10872834 DOI: 10.1111/jir.13103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 09/29/2023] [Accepted: 10/11/2023] [Indexed: 10/31/2023]
Abstract
BACKGROUND Obesity in adults without Down syndrome is associated with an adverse metabolic profile including high prevalence of pre-diabetes and diabetes, high levels of insulin, non-high-density lipoprotein (HDL) cholesterol, leptin and high-sensitivity C-reactive protein (hsCRP) and low levels of HDL and adiponectin. We examined whether obesity in middle-aged adults with Down syndrome is also related to an adverse metabolic profile. METHODS This cross-sectional study included 143 adults with Down syndrome, with a mean age of 55.7 ± 5.7 years and 52.5% women. Body mass index (BMI) was classified as underweight (BMI < 18.5 kg/m2 ), normal (BMI 18.5-24.9 kg/m2 ), overweight (BMI 25-29.9 kg/m2 ) and obese (BMI ≥ 30 kg/m2 ). Diabetes was ascertained by history or by haemoglobin A1c (HbA1c) as normal glucose tolerance (HbA1c < 5.7%), pre-diabetes (HbA1c 5.7-6.4%) and diabetes (HbA1c ≥ 6.5%). We measured non-fasting lipids, hsCRP, insulin, adiponectin and leptin. RESULTS The majority of the sample had an overweight (46.9%) or obesity (27.3%) status. However, there was a relatively low prevalence of pre-diabetes (9.8%) and diabetes (6.9%). Overweight and obesity status were not associated with lower HDL and adiponectin and higher insulin, non-HDL cholesterol and hsCRP as expected in adults without Down syndrome. However, overweight and obesity were strongly associated with higher leptin (P < 0.001). CONCLUSIONS The only metabolic correlate of obesity in middle-aged adults with Down syndrome was high leptin levels. Our findings are limited by non-fasting laboratory tests but suggest that middle-aged adults with Down syndrome do not have the adverse metabolic profile related to obesity found in adults without Down syndrome.
Collapse
Affiliation(s)
- José A. Luchsinger
- Department of Medicine, Columbia University Medical Center, New York, NY, USA
- Department of Epidemiology, Columbia University Medical Center, New York, NY, USA
| | - Deborah Pang
- New York State Institute for Basic Research in Developmental Disabilities, Staten Island, New York, USA
| | - Sharon J. Krinsky-McHale
- New York State Institute for Basic Research in Developmental Disabilities, Staten Island, New York, USA
| | - Nicole Schupf
- Department of Epidemiology, Columbia University Medical Center, New York, NY, USA
- Gertrude H. Sergievsky Center, Columbia University Medical Center, New York, NY, USA
- Taub Institute, Columbia University Medical Center, New York, NY, USA
| | - Joseph H. Lee
- Department of Epidemiology, Columbia University Medical Center, New York, NY, USA
- Gertrude H. Sergievsky Center, Columbia University Medical Center, New York, NY, USA
- Taub Institute, Columbia University Medical Center, New York, NY, USA
| | | | - Warren B. Zigman
- New York State Institute for Basic Research in Developmental Disabilities, Staten Island, New York, USA
| |
Collapse
|
5
|
Vilariño-García T, Polonio-González ML, Pérez-Pérez A, Ribalta J, Arrieta F, Aguilar M, Obaya JC, Gimeno-Orna JA, Iglesias P, Navarro J, Durán S, Pedro-Botet J, Sánchez-Margalet V. Role of Leptin in Obesity, Cardiovascular Disease, and Type 2 Diabetes. Int J Mol Sci 2024; 25:2338. [PMID: 38397015 PMCID: PMC10888594 DOI: 10.3390/ijms25042338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/07/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Diabetes mellitus (DM) is a highly prevalent disease worldwide, estimated to affect 1 in every 11 adults; among them, 90-95% of cases are type 2 diabetes mellitus. This is partly attributed to the surge in the prevalence of obesity, which has reached epidemic proportions since 2008. In these patients, cardiovascular (CV) risk stands as the primary cause of morbidity and mortality, placing a substantial burden on healthcare systems due to the potential for macrovascular and microvascular complications. In this context, leptin, an adipocyte-derived hormone, plays a fundamental role. This hormone is essential for regulating the cellular metabolism and energy balance, controlling inflammatory responses, and maintaining CV system homeostasis. Thus, leptin resistance not only contributes to weight gain but may also lead to increased cardiac inflammation, greater fibrosis, hypertension, and impairment of the cardiac metabolism. Understanding the relationship between leptin resistance and CV risk in obese individuals with type 2 DM (T2DM) could improve the management and prevention of this complication. Therefore, in this narrative review, we will discuss the evidence linking leptin with the presence, severity, and/or prognosis of obesity and T2DM regarding CV disease, aiming to shed light on the potential implications for better management and preventive strategies.
Collapse
Affiliation(s)
- Teresa Vilariño-García
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen del Rocio University Hospital, University of Seville, Seville 41013, Spain;
| | - María L. Polonio-González
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009, Spain; (M.L.P.-G.); (A.P.-P.)
| | - Antonio Pérez-Pérez
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009, Spain; (M.L.P.-G.); (A.P.-P.)
| | - Josep Ribalta
- Departament de Medicina i Cirurgia, University Rovira i Vigili, IISPV, CIBERDEM, 43007 Tarragona, Spain;
| | - Francisco Arrieta
- Endocrinology and Nutrition Service, Ramón y Cajal University Hospital, 28034 Madrid, Spain;
| | - Manuel Aguilar
- Endocrinology and Nutrition Service, Puerta del Mar University Hospital, Instituto de Investigación e Innovación en Ciencias Biomédicas de la Provincia de Cádiz (INiBICA), Cádiz University (UCA), 11001 Cádiz, Spain;
| | - Juan C. Obaya
- Chopera Helath Center, Alcobendas Primary Care,Alcobendas 28100 Madrid, Spain;
| | - José A. Gimeno-Orna
- Endocrinology and Nutrition Department, Hospital Clinico Universitario Lozano Blesa, 15 50009 Zaragoza, Spain;
| | - Pedro Iglesias
- Endocrinology and Nutrition Service, Puerta de Hierro University Hospital, Majadahonda, 28220 Madrid, Spain;
| | - Jorge Navarro
- Hospital Clínico Universitario de Valencia,46011 Valencia, Spain;
| | - Santiago Durán
- Endodiabesidad Clínica Durán & Asociados,41018 Seville, Spain;
| | - Juan Pedro-Botet
- Lipids and Cardiovascular Risk Unit, Hospital del Mar, Autonomous University of Barcelona, 08003 Barcelona, Spain;
| | - Víctor Sánchez-Margalet
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, Virgen Macarena University Hospital, University of Seville, 41009, Spain; (M.L.P.-G.); (A.P.-P.)
- Institute of Biomedicine of Seville (IBIS), Hospital Universitario Virgen del Rocío/Virgen Macarena, CSIC, Universidad de Sevilla, 41013 Seville, Spain
| |
Collapse
|
6
|
van Niekerk E, Botha-Le Roux S, Mels CMC, Swanepoel M, Delles C, Welsh P, Kruger R. Twenty-four-hour ambulatory, but not clinic blood pressure associates with leptin in young adults with overweight or obesity: The African-PREDICT study. Hypertens Res 2024; 47:478-486. [PMID: 37872379 PMCID: PMC10838765 DOI: 10.1038/s41440-023-01477-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/11/2023] [Accepted: 10/02/2023] [Indexed: 10/25/2023]
Abstract
Hypertension and obesity are known pro-inflammatory conditions, and limited studies explored various blood pressure modalities and inflammatory markers in young adults with overweight or obesity (OW/OB). We assessed the relationship of clinic and 24 h ambulatory blood pressure with an array of inflammatory markers in young adults with OW/OB. This cross-sectional study included women and men of Black and White ethnicity (n = 1194) with a median age of 24.5 ± 3.12 years. Participants were divided into normal weight and OW/OB groups according to body mass index. Clinic and 24 h ambulatory systolic and diastolic blood pressure were measured. Inflammatory markers included leptin, interleukin-6, interleukin-8, tumour necrosis factor-α, adiponectin, interleukin-10, and C-reactive protein. After adjustments for age, sex, and ethnicity, the OW/OB group had higher blood pressure and an overall worse inflammatory profile compared to the normal weight group (all p ≤ 0.024). In the OW/OB group, 24 h systolic (r = 0.22; p < 0.001) and diastolic blood pressure (r = 0.28; p < 0.001) correlated with leptin, independent of age, sex, and ethnicity. In fully adjusted regression models, 24 h systolic blood pressure (adj.R2 = 0.25; β = 0.28; p = 0.035) and diastolic blood pressure (adj.R2 = 0.10; β = 0.32; p = 0.034), associated with leptin in the OW/OB group and significance remained with additional adjustments for visceral adiposity index. Twenty-four-hour ambulatory, but not clinic blood pressure, is related to leptin in young adults with OW/OB. Leptin shows a stronger relationship with adiposity when compared to other inflammatory markers and may play a role in subcutaneous adiposity-related increased blood pressure.
Collapse
Affiliation(s)
- Elandi van Niekerk
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
| | - Shani Botha-Le Roux
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
- Medical Research Council: Research Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom, South Africa
| | - Catharina M C Mels
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
- Medical Research Council: Research Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom, South Africa
| | - Mariette Swanepoel
- Physical activity, Sport and Recreation (PhASRec), North-West University, Potchefstroom, South Africa
| | - Christian Delles
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - Paul Welsh
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - Ruan Kruger
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa.
- Medical Research Council: Research Unit for Hypertension and Cardiovascular Disease, North-West University, Potchefstroom, South Africa.
| |
Collapse
|
7
|
Mujaddadi A, Zaki S, M Noohu M, Naqvi IH, Veqar Z. Predictors of Cardiac Autonomic Dysfunction in Obesity-Related Hypertension. High Blood Press Cardiovasc Prev 2024; 31:77-91. [PMID: 38345729 DOI: 10.1007/s40292-024-00623-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 01/04/2024] [Indexed: 03/12/2024] Open
Abstract
INTRODUCTION Cardiac Autonomic Dysfunction (CAD) is an overlooked cardiovascular risk factor in individuals with obesity-related hypertension. Despite its clinical significance, there is a notable lack of clarity regarding the pathophysiological correlates involved in its onset and progression. AIM The present study aimed to identify potential predictors of CAD in obesity-related hypertension. METHODS A total of 72 participants (34 men and 38 women) were enrolled. Comprehensive evaluations were conducted, including cardiac autonomic function assessments, body composition estimation and biochemical analysis. Participants were categorized as CAD-positive or CAD-negative based on Ewing's criteria for autonomic dysfunction. Univariate logistic regression analysis was performed to identify potential predictors for CAD. Multivariate logistic regression models were further constructed by adjusting clinically relevant covariates to identify independent predictors of CAD. RESULTS Multivariate logistic regression analysis revealed that resting heart rate (HRrest), (odds ratio, confidence interval: 0.85, 0.78-0.93; p = 0.001) and percentage body fat (BF%), (odds ratio, confidence interval: 0.78, 0.64-0.96; p = 0.018) were significant independent predictors of CAD. Receiver Operating Characteristic curve analysis depicted optimal cut-off values for HRrest and BF% as > 74.1 bpm and > 33.6%, respectively. Multicolinearity analysis showed variance inflation factors (VIF) below the cautionary threshold of 3. CONCLUSIONS The HRrest and BF% emerged as significant independent predictors of CAD in obesity-related hypertension. Therapeutic strategies should target HRrest < 74.1 bpm and BF% < 33.6% to mitigate CAD risk in this population. Future trials are required to establish causal relationships and may consider additional confounding variables in obesity-related hypertension.
Collapse
Affiliation(s)
- Aqsa Mujaddadi
- Centre for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia (A Central University), New Delhi, 110025, India
| | - Saima Zaki
- Centre for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia (A Central University), New Delhi, 110025, India
| | - Majumi M Noohu
- Centre for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia (A Central University), New Delhi, 110025, India
| | - Irshad Husain Naqvi
- Centre for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia (A Central University), New Delhi, 110025, India
- Dr. M.A. Ansari Health Centre, Jamia Millia Islamia (A Central University), New Delhi, 110025, India
| | - Zubia Veqar
- Centre for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia (A Central University), New Delhi, 110025, India.
| |
Collapse
|
8
|
Kalusche W, Case C, Taylor E. Leptin antagonism attenuates hypertension and renal injury in an experimental model of autoimmune disease. Clin Sci (Lond) 2023; 137:1771-1785. [PMID: 38031726 PMCID: PMC10721433 DOI: 10.1042/cs20230924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/25/2023] [Accepted: 11/29/2023] [Indexed: 12/01/2023]
Abstract
Systemic lupus erythematosus (SLE) is a chronic autoimmune disorder that is characterized by B- and T-lymphocyte dysfunction and altered cytokine production, including elevated levels of the adipocytokine leptin. Leptin has various immunomodulatory properties, including promoting the expansion of proinflammatory T lymphocytes and the proliferation and survival of B cells. In the present study, we hypothesized that leptin antagonism would improve B- and T-cell dysfunction and attenuate hypertension in an experimental model of SLE, the NZBWF1 mouse. To test this hypothesis, 28-week-old female control and SLE mice were administered 5 mg/kg of murine leptin superantagonist (LA) or vehicle via ip injection every other day for four weeks. Analysis of peripheral blood immune cell populations showed no changes in total CD45R+ B and CD3+ T cell percentages after treatment with LA. However, SLE mice treated with LA had an improved CD4/CD8 ratio and decreased CD3+CD4-CD8- double negative (DN) T cells. Blood pressure was higher in SLE than in control, and treatment with LA decreased blood pressure in SLE mice. Treatment with LA also delayed the onset of albuminuria and decreased glomerulosclerosis in SLE mice. Renal immune cell infiltration was significantly higher in SLE mice as compared with control, but LA treatment was associated with decreased levels of renal CD4+ T cells. In conclusion, these data suggest that leptin plays a pathogenic role in the development of hypertension in SLE, in part, by promoting the expansion of inflammatory DN T cells and the infiltration of T cells into the kidneys.
Collapse
Affiliation(s)
- William J. Kalusche
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
| | - Clinton T. Case
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
| | - Erin B. Taylor
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
| |
Collapse
|
9
|
Kreiner FF, Schytz PA, Heerspink HJL, von Scholten BJ, Idorn T. Obesity-Related Kidney Disease: Current Understanding and Future Perspectives. Biomedicines 2023; 11:2498. [PMID: 37760939 PMCID: PMC10526045 DOI: 10.3390/biomedicines11092498] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Obesity is a serious chronic disease and an independent risk factor for the new onset and progression of chronic kidney disease (CKD). CKD prevalence is expected to increase, at least partly due to the continuous rise in the prevalence of obesity. The concept of obesity-related kidney disease (OKD) has been introduced to describe the still incompletely understood interplay between obesity, CKD, and other cardiometabolic conditions, including risk factors for OKD and cardiovascular disease, such as diabetes and hypertension. Current therapeutics target obesity and CKD individually. Non-pharmacological interventions play a major part, but the efficacy and clinical applicability of lifestyle changes and metabolic surgery remain debatable, because the strategies do not benefit everyone, and it remains questionable whether lifestyle changes can be sustained in the long term. Pharmacological interventions, such as sodium-glucose co-transporter 2 inhibitors and the non-steroidal mineralocorticoid receptor antagonist finerenone, provide kidney protection but have limited or no impact on body weight. Medicines based on glucagon-like peptide-1 (GLP-1) induce clinically relevant weight loss and may also offer kidney benefits. An urgent medical need remains for investigations to better understand the intertwined pathophysiologies in OKD, paving the way for the best possible therapeutic strategies in this increasingly prevalent disease complex.
Collapse
Affiliation(s)
| | | | - Hiddo J. L. Heerspink
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, 9700 RB Groningen, The Netherlands;
| | | | - Thomas Idorn
- Novo Nordisk A/S, DK-2860 Søborg, Denmark; (F.F.K.); (P.A.S.); (B.J.v.S.)
| |
Collapse
|
10
|
Li B, Hou C, Li L, Li M, Gao S. The associations of adipokines with hypertension in youth with cardiometabolic risk and the mediation role of insulin resistance: The BCAMS study. Hypertens Res 2023; 46:1673-1683. [PMID: 36890271 DOI: 10.1038/s41440-023-01243-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 03/10/2023]
Abstract
The mechanisms link obesity and hypertension are not well understood. One possibility is the alterations in adipose-derived adipokines that modulate insulin resistance (IR) and cardiovascular homeostasis. We aimed to assess the associations between hypertension and four adipokine levels in Chinese youth, and to examine to what extent the associations are mediated by IR. We utilized cross-sectional data from the Beijing Children and Adolescents Metabolic Syndrome (BCAMS) Study Cohort (n = 559, mean age = 20.2 years). Plasma leptin, adiponectin, retinol binding protein 4 (RBP4) and fibroblast growth factor 21 (FGF21) levels were assayed. The relationships between adipokines and hypertension and the possible mediation effect of IR were evaluated. Youth with hypertension have lower adiponectin and higher leptin, FGF21 (all P < 0.001) and RBP4 levels (p = 0.06) compared to their counterparts. Moreover, the co-existence of these two or more adipokine abnormalities in youth leads to a 9-fold increased risk for hypertension (OR: 9.19; 95% CI, 4.01-21.08) compared with these without abnormalities. However, in the fully adjusted and BMI-adjusted analyses, only FGF21 was a significant predictor of hypertension (OR: 2.12; 95% CI, 1.34-3.36). Mediation analysis revealed that the associations between leptin, adiponectin, RBP4 and hypertension are totally mediated by IR (proportion: 63.9%, 65.4%, and 31.6%, respectively), while BMI and IR partly mediated the association between FGF21 and hypertension (proportion: 30.6%, 21.2%). Our findings suggest that dysregulation of adipokines might result in hypertension in youth. Leptin, adiponectin and RBP4 may exert their functions in hypertension through adiposity-related IR, whereas FGF21 might be used as an independent marker of hypertension in youth.
Collapse
Affiliation(s)
- Bo Li
- Department of Endocrinology, National Health Commission (NHC) Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Cong Hou
- Department of Endocrinology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Lianxia Li
- Department of Endocrinology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Ming Li
- Department of Endocrinology, National Health Commission (NHC) Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.
| | - Shan Gao
- Department of endocrinology, Xuanwu Hospital, Capital Medical University, Beijing, China.
| |
Collapse
|
11
|
Jung MH, Ihm SH. Obesity-related hypertension and chronic kidney disease: from evaluation to management. Kidney Res Clin Pract 2023; 42:431-444. [PMID: 37551125 PMCID: PMC10407638 DOI: 10.23876/j.krcp.23.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/14/2023] [Accepted: 06/15/2023] [Indexed: 08/09/2023] Open
Abstract
With the recent obesity pandemic, obesity-related hypertension and its complications (e.g., heart failure, coronary disease, and chronic kidney disease [CKD]) are gaining attention in clinical and research fields. Obesity-related hypertension frequently precedes the onset of CKD and aggravates its progression. In this review, we discuss the role of visceral fat in the pathophysiology of obesity-related hypertension and the potential therapeutic strategies for its prevention and management. Various factors, including the sympathetic nervous system, renin-angiotensin-aldosterone system, and inflammatory pathways, are intricately involved in the pathogenesis of obesity-related hypertension. These factors individually and jointly contribute to the development of hypertension (usually sodium-sensitive or resistant hypertension) and, ultimately, to the progression of CKD. From a clinical standpoint, a decline in renal function in advanced CKD further makes blood pressure control challenging since only a few options are available for blood pressure-lowering medications. Proactive lifestyle modification, pharmacological treatment for obesity, and bariatric surgery can be considered for obesity control and management. Furthermore, intensive blood pressure control is required to prevent and halt the development and progression of CKD.
Collapse
Grants
- 2011E3300300, 2012E3301100, 2013E3301600, 2013E3301601, 2013E3301602, 2016E3300200, 2016E330 0201, 2016E3300202,2019E320100, 2019E320101, 2019 E320102, 2022-11-007 Korea Disease Control and Prevention Agency
- NRF-2019R1A2C2086276 National Research Foundation of Korea
- BCRI22042, BCRI22079 Chonnam National University Hospital Biomedical Research Institute
Collapse
Affiliation(s)
- Mi-Hyang Jung
- Division of Cardiology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Catholic Research Institute for Intractable Cardiovascular Disease, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sang-Hyun Ihm
- Catholic Research Institute for Intractable Cardiovascular Disease, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Bucheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| |
Collapse
|
12
|
Leptin Increases: Physiological Roles in the Control of Sympathetic Nerve Activity, Energy Balance, and the Hypothalamic-Pituitary-Thyroid Axis. Int J Mol Sci 2023; 24:ijms24032684. [PMID: 36769012 PMCID: PMC9917048 DOI: 10.3390/ijms24032684] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/17/2023] [Accepted: 01/21/2023] [Indexed: 02/04/2023] Open
Abstract
It is well established that decreases in plasma leptin levels, as with fasting, signal starvation and elicit appropriate physiological responses, such as increasing the drive to eat and decreasing energy expenditure. These responses are mediated largely by suppression of the actions of leptin in the hypothalamus, most notably on arcuate nucleus (ArcN) orexigenic neuropeptide Y neurons and anorexic pro-opiomelanocortin neurons. However, the question addressed in this review is whether the effects of increased leptin levels are also significant on the long-term control of energy balance, despite conventional wisdom to the contrary. We focus on leptin's actions (in both lean and obese individuals) to decrease food intake, increase sympathetic nerve activity, and support the hypothalamic-pituitary-thyroid axis, with particular attention to sex differences. We also elaborate on obesity-induced inflammation and its role in the altered actions of leptin during obesity.
Collapse
|
13
|
Carrera I, Corzo L, Naidoo V, Martínez-Iglesias O, Cacabelos R. Cardiovascular and lipid-lowering effects of a marine lipoprotein extract in a high-fat diet-induced obesity mouse model. Int J Med Sci 2023; 20:292-306. [PMID: 36860672 PMCID: PMC9969509 DOI: 10.7150/ijms.80727] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 01/12/2023] [Indexed: 02/04/2023] Open
Abstract
Obesity is a major health challenge worldwide, with implications for diabetes, hypertension and cardiovascular disease (CVD). Regular consumption of dark-meat fish is linked to a lower incidence of CVD and associated metabolic disorders due to the presence of long-chain omega-3 fatty acid ethyl esters in fish oils. The aim of the present study was to determine whether a marine compound like a sardine lipoprotein extract (RCI-1502), regulates fat accumulation in the heart of a high-fat diet-induced (HFD) mouse model of obesity. To investigate its effects in the heart and liver, we conducted a randomized, 12-week placebo-controlled study in which we analyzed the expression of vascular inflammation markers, obesity biochemical patterns and related CVD pathologies. Male HFD-fed mice treated with a RCI-1502-supplemented diet showed reduced body weight, abdominal fat tissue and pericardial fat pad mass density without systemic toxicity. RCI-1502 significantly reduced triacylglyceride, low-density lipoprotein and total-cholesterol concentrations in serum, but increased HDL-cholesterol levels. Our data show that RCI-1502 is beneficial for reducing obesity associated with a long-term HFD, possibly by exerting a protective effect on lipidic homeostasis, indicated also by histopathological analysis. These results collectively indicate that RCI-1502 acts as a cardiovascular therapeutic nutraceutical agent, which modulates fat-induced inflammation and improves metabolic health.
Collapse
Affiliation(s)
- Iván Carrera
- EuroEspes Biomedical Research Center, Institute of Medical Science and Genomic Medicine, 15165-Bergondo, Corunna, Spain
| | | | | | | | | |
Collapse
|
14
|
Rike ME, Diress M, Dagnew B, Getnet M, Hasano Kebalo A, Sinamaw D, Solomon D, Akalu Y. Hypertension and Its Associated Factors Among Long-Distance Truck Drivers in Ethiopia. Integr Blood Press Control 2022; 15:67-79. [PMID: 35761970 PMCID: PMC9233485 DOI: 10.2147/ibpc.s361789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 06/15/2022] [Indexed: 11/24/2022] Open
Abstract
Introduction Hypertension is rising globally and is one of the leading causes of cardiovascular disease. It affects people of different groups; however, owing to a rise in a sedentary lifestyle it is more prevalent among long-distance truck drivers. However, the prevalence of hypertension and its associated factors among truck drivers in Ethiopia is not known. Therefore, this study aimed to determine the prevalence of hypertension and its associated factors among long-distance truck drivers in Ethiopia. Methods A cross-sectional study was conducted among 415 long-distance truck drivers selected by systematic random sampling technique at Modjo dry port from May 15 to 30, 2021. The data were collected and entered into Epi-data 4.6 then it was exported to SPSS version 25 for analysis. Descriptive statistics, bivariable, and multivariable logistic regression analyses were executed. The odds ratio with a 95% confidence interval was computed. In the final model, a variable with a p ≤ 0.05 was declared as a predictor of hypertension. Results The prevalence of hypertension among long-distance truck drivers in Ethiopia was 34.7%. The odds of hypertension was higher among drivers who were ≥45 years old [Adjusted odds ratio (AOR) = 4.32; 95% Confidence interval (CI): 2.16, 8.62], obese [AOR= 5.12; 95% CI: 1.33, 19.8], alcohol drinkers [AOR=3.05; 95% CI: 1.27, 7.31], and cigarette smokers [AOR= 3.74; 95% CI: 1.64, 8.51]. Drivers who had regular physical exercise were less likely [AOR=0.33; 95% CI: 0.17, 0.63] to have hypertension than drivers with no physical activity. Conclusion More than a third of the participants in Ethiopia had hypertension. Higher age, obesity, absence of rest between driving, short sleep duration, smoking, alcohol drinking, and physical inactivity were significantly associated with hypertension. Therefore, health education on lifestyle modifications, sleep habits, and the importance of rest breaks between driving should be considered to prevent hypertension and further complications.
Collapse
Affiliation(s)
- Mohammed Ebrahim Rike
- Department of Biomedical Science, School of Medicine, College of Medicine and Health Sciences, Madda Walabu University, Bale Robe, Oromia, Ethiopia
| | - Mengistie Diress
- Department of Human Physiology, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Amhara, Ethiopia
| | - Baye Dagnew
- Department of Human Physiology, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Amhara, Ethiopia
| | - Mihret Getnet
- Department of Human Physiology, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Amhara, Ethiopia
| | - Abbul Hasano Kebalo
- Department of Biomedical Science, School of Medicine, College of Medicine and Health Sciences, Madda Walabu University, Bale Robe, Oromia, Ethiopia
| | - Derese Sinamaw
- Department of Biomedical Science, School of Medicine, College of Medicine and Health Sciences, Debre Markos University, Debre Markos, Amhara, Ethiopia
| | - Damtew Solomon
- Department of Biomedical Science, School of Medicine, College of Medicine and Health Sciences, Madda Walabu University, Bale Robe, Oromia, Ethiopia
| | - Yonas Akalu
- Department of Human Physiology, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Amhara, Ethiopia
| |
Collapse
|
15
|
ter Ellen BM, Niewold J, Flikweert A, Muller Kobold AC, Heeringa P, van Meurs M, Smit JM, van der Voort PHJ, Rodenhuis-Zybert IA, Moser J. Mediators of Obesity Do Not Influence SARS-CoV-2 Infection or Activation of Primary Human Lung Microvascular Endothelial Cells In Vitro. Front Immunol 2022; 13:879033. [PMID: 35837388 PMCID: PMC9273911 DOI: 10.3389/fimmu.2022.879033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 06/02/2022] [Indexed: 12/15/2022] Open
Abstract
Clinical observations have shown that obesity is associated with the severe outcome of SARS-CoV-2 infection hallmarked by microvascular dysfunction in the lungs and other organs. Excess visceral fat and high systemic levels of adipose tissue (AT) derived mediators such as leptin and other adipokines have also been linked to endothelial dysfunction. Consequently, we hypothesized that AT-derived mediators may exacerbate microvascular dysfunction during of SARS-CoV-2 infection and tested this in a primary human lung microvascular endothelial (HLMVEC) cell model. Our results indicate that HLMVEC are not susceptible to SARS-CoV-2 infection since no expression of viral proteins and no newly produced virus was detected. In addition, exposure to the virus did not induce endothelial activation as evidenced by a lack of adhesion molecule, E-selectin, VCAM-1, ICAM-1, and inflammatory cytokine IL-6 induction. Incubation of endothelial cells with the pro-inflammatory AT-derived mediator, leptin, prior to virus inoculation, did not alter the expression of endothelial SARS-CoV-2 entry receptors and did not alter their susceptibility to infection. Furthermore, it did not induce inflammatory activation of endothelial cells. To verify if the lack of activated phenotype in the presence of adipokines was not leptin-specific, we exposed endothelial cells to plasma obtained from critically ill obese COVID-19 patients. Plasma exposure did not result in E-selectin, VCAM-1, ICAM-1, or IL-6 induction. Together our results strongly suggest that aberrant inflammatory endothelial responses are not mounted by direct SARS-CoV-2 infection of endothelial cells, even in the presence of leptin and other mediators of obesity. Instead, endothelial activation associated with COVID-19 is likely a result of inflammatory responses initiated by other cells. Further studies are required to investigate the mechanisms regulating endothelial behavior in COVID-19 and the mechanisms driving severe disease in obese individuals.
Collapse
Affiliation(s)
- Bram M. ter Ellen
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Jelmer Niewold
- Department of Critical Care, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Antine Flikweert
- Department of Critical Care, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Department of Pulmonary Medicine, Amphia Hospital, Breda, Netherlands
| | - Anneke C. Muller Kobold
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Peter Heeringa
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Matijs van Meurs
- Department of Critical Care, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Jolanda M. Smit
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Peter H. J. van der Voort
- Department of Critical Care, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Izabela A. Rodenhuis-Zybert
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Jill Moser
- Department of Critical Care, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- *Correspondence: Jill Moser,
| |
Collapse
|
16
|
Wang X, Shen Y, Ke X, Kang H, Hong S. Role of leptin/ILC2 axis in allergic rhinitis in obese children. Int J Pediatr Otorhinolaryngol 2022; 157:111127. [PMID: 35468486 DOI: 10.1016/j.ijporl.2022.111127] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/26/2022] [Accepted: 03/31/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Since the leptin participates in the upregulation of type 2 innate lymphoid cells (ILC2s). We investigated the role of the leptin/ILC2 axis in AR pathogenesis in Chinese paediatric patients with obesity. METHODS Seventy AR paediatric patients with or without obesity and 30 healthy obese subjects were enrolled. The levels of leptin, its receptor and ILC2 milieu were measured, and correlations between them and clinical symptom severity and between ILC2 milieu and leptin levels were assessed. Changes of ILC2 milieu in AR patients after leptin stimulation were also detected. RESULTS Levels of leptin, its receptor and ILC2 milieu levels were significantly higher in the disease than in the controls, and highest in the obese-AR group. The leptin/ILC2 axis and severity of clinical symptoms in obese patients with AR were significantly correlated, similarly to what was observed between leptin/leptin receptors and ILC2 milieu. Recombinant leptin could significantly increased the levels of ILC2 milieu in the obese-AR group. CONCLUSIONS These findings suggest the unique function ofthe leptin/ILC2 axis in obese paediatric AR patients. The mechanism by which obesity promotes AR in paediatric patients may be related to the leptin/ILC2 axis.
Collapse
Affiliation(s)
- Xiaoqiang Wang
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, PR China.
| | - Yang Shen
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, PR China.
| | - Xia Ke
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, PR China
| | - Houyong Kang
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, PR China.
| | - Suling Hong
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, PR China.
| |
Collapse
|
17
|
Wu O, Leng JH, Zhang X, Liu W, Yang FF, Zhang H, Li JJ, Zhang GZ, Lu X. Controversial culprit of leptin in obesity hypertension: clues from a case-control study with Chinese newly diagnosed adult early-onset obesity hypertensives. Clin Exp Hypertens 2022; 44:495-501. [PMID: 35531968 DOI: 10.1080/10641963.2022.2071920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Ou Wu
- Shulan International Medical College, Zhejiang Shuren University, Zhejiang, P.R. China
| | - Jian Hang Leng
- Department of Central Laboratory/Medical Examination Center of Hangzhou, The First People’s Hospital of Hangzhou, Zhejiang, P.R. China
| | - Xingyu Zhang
- Starzl Transplantation Institute, University of Pittsburgh Medical CenterThomas E. , Pittsburgh, PA, USA
| | - Wei Liu
- Joinstar Biomedical Technology Co., LTD, Hangzhou, P.R. China
| | - Fen Fang Yang
- Department of Central Laboratory/Medical Examination Center of Hangzhou, The First People’s Hospital of Hangzhou, Zhejiang, P.R. China
| | - Hu Zhang
- Department of Thoracic Surgery, Sir Run Run Shaw Hospital Affiliated with Medical College of Zhejiang University, Zhejiang, P.R. China
| | - Jia Jia Li
- Department of Central Laboratory, The First Affiliated Hospital of Anhui Medical University, Anhui, P.R. China
| | - Guo Zhong Zhang
- Microbiology Laboratory, Hangzhou Center for Disease Control and Prevention, Zhejiang, P.R. China
| | - Xi Lu
- Hangzhou Vocational and Technical College, Zhejiang, P.R. China
| |
Collapse
|
18
|
Choi SY, Lee SY, Kim HG, Jeong JC, Batara DC, Kim SH, Cho JY. Shinorine and porphyra-334 isolated from laver (Porphyra dentata) inhibit adipogenesis in 3T3-L1 cells. Food Sci Biotechnol 2022; 31:617-625. [PMID: 35529689 PMCID: PMC9033900 DOI: 10.1007/s10068-022-01055-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/13/2022] [Accepted: 02/17/2022] [Indexed: 12/11/2022] Open
Abstract
Mycosporine-like amino acids (MAAs) such as shinorine and porphyra-334 from Porphyra spp. are bioactive compounds with strong photoprotective and antioxidant properties. In this study, the anti-adipogenic effect of shinorine and porphyra-334 was examined in vitro utilizing 3T3-L1 preadipocytes. Shinorine and porphyra-334 were extracted from laver (Porphyra dentata) 50% methanolic (MeOH) extract of and their structures were elucidated by MS and NMR spectroscopy. Both compounds had no cytotoxic effect in 3T3-L1 cells (< 200 μg/mL) and inhibited the accumulation of lipid droplets in 3T3-L1 mature adipocytes in a dose-dependent manner (0.1 and 1.0 μM). Interestingly, both compounds had also significantly reduced the expression of adipogenic-related genes such as peroxisome proliferator-activated receptor γ2 (PPARγ2), CCAAT/enhancer-binding protein α (C/EBPα), adiponectin, and leptin in 3T3-L1 cells. The findings suggest that shinorine and porphyra-334 have the potential to inhibit adipogenesis in 3T3-L1 preadipocytes.
Collapse
Affiliation(s)
- Su-Young Choi
- Department of Animal Science, Chonnam National University, 77 Yongbongro, Gwangju, 61186 Republic of Korea
| | - Su Yeon Lee
- Department of Food Science and Technology, Chonnam National University, 77 Yongbongro, Gwangju, 61186 Republic of Korea
| | - Hyung Gyun Kim
- Mokpo Marine Food-Industry Research Center, Mokpo, 58621 Republic of Korea
| | - Jae Cheon Jeong
- Mokpo Marine Food-Industry Research Center, Mokpo, 58621 Republic of Korea
| | - Don Carlo Batara
- Department of Animal Science, Chonnam National University, 77 Yongbongro, Gwangju, 61186 Republic of Korea
| | - Sung-Hak Kim
- Department of Animal Science, Chonnam National University, 77 Yongbongro, Gwangju, 61186 Republic of Korea
| | - Jeong-Yong Cho
- Department of Food Science and Technology, Chonnam National University, 77 Yongbongro, Gwangju, 61186 Republic of Korea
| |
Collapse
|
19
|
Leptin Protein Expression and Promoter Methylation in Ovarian Cancer: A Strong Prognostic Value with Theranostic Promises. Int J Mol Sci 2021; 22:ijms222312872. [PMID: 34884678 PMCID: PMC8657586 DOI: 10.3390/ijms222312872] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 12/13/2022] Open
Abstract
Ovarian cancer (OC) is the deadliest among all gynecological cancers. Epidemiological studies showed that obesity might influence many cancers including OC. One of the key factors that may link obesity and OC is leptin (LEP), known as an adipokine with pleiotropic effects on body homeostasis. This study aims to investigate the expression pattern of LEP, assess the methylation profiles of LEP and their associations with clinicopathological features including survival outcomes of OC patients. The protein expression of LEP was evaluated in 208 samples using both tissue microarray and immunohistochemistry techniques. The methylation profiles of LEP were measured in 63 formalin-fixed, paraffin-embedded tumor tissues by quantitative polymerase chain reaction using a MethyLight assay. Our results showed a significant association of LEP protein overexpression with several clinicopathological variables, mainly tumor subtype, LVI, age of menarche, tumor size and stage (p < 0.04). Kaplan-Meier analysis (using low expression versus high expression as a discriminator) indicated that LEP protein overexpression is a powerful positive prognosticator of both OC recurrence (DFS) and disease-specific survival (DSS) in our OC cohort (log-rank p = 0.01 and p = 0.002, respectively). This implies that patients with high LEP expression profiles live longer with less recurrence rates. Methylation analysis results demonstrated a clear association between no/low LEP protein expression pattern (38%) and LEP promoter CpG island hypermethylation (43%). Results of this study suggest that LEP is a powerful prognosticator of OC recurrence and DSS. LEP expression in OC seems to be regulated by its promoter hypermethylation through gene partial/total silencing. Further multi-institutional studies using larger cohorts are required to demystify the intricate molecular functions of this leptin-driven effects in OC pathophysiology and to accurately assess its theranostic potential and validate its prognostic/predictive power in OC onset, progression towards more effective and personalized management of OC patients.
Collapse
|
20
|
Ernsberger U, Deller T, Rohrer H. The sympathies of the body: functional organization and neuronal differentiation in the peripheral sympathetic nervous system. Cell Tissue Res 2021; 386:455-475. [PMID: 34757495 PMCID: PMC8595186 DOI: 10.1007/s00441-021-03548-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 10/20/2021] [Indexed: 02/06/2023]
Abstract
During the last 30 years, our understanding of the development and diversification of postganglionic sympathetic neurons has dramatically increased. In parallel, the list of target structures has been critically extended from the cardiovascular system and selected glandular structures to metabolically relevant tissues such as white and brown adipose tissue, lymphoid tissues, bone, and bone marrow. A critical question now emerges for the integration of the diverse sympathetic neuron classes into neural circuits specific for these different target tissues to achieve the homeostatic regulation of the physiological ends affected.
Collapse
Affiliation(s)
- Uwe Ernsberger
- Institute for Clinical Neuroanatomy, Goethe University, Frankfurt/Main, Germany.
| | - Thomas Deller
- Institute for Clinical Neuroanatomy, Goethe University, Frankfurt/Main, Germany
| | - Hermann Rohrer
- Institute for Clinical Neuroanatomy, Goethe University, Frankfurt/Main, Germany.
| |
Collapse
|
21
|
Perrone L, Valente M. The Emerging Role of Metabolism in Brain-Heart Axis: New Challenge for the Therapy and Prevention of Alzheimer Disease. May Thioredoxin Interacting Protein (TXNIP) Play a Role? Biomolecules 2021; 11:1652. [PMID: 34827650 PMCID: PMC8616009 DOI: 10.3390/biom11111652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/02/2021] [Accepted: 11/06/2021] [Indexed: 12/15/2022] Open
Abstract
Alzheimer disease (AD) is the most frequent cause of dementia and up to now there is not an effective therapy to cure AD. In addition, AD onset occurs decades before the diagnosis, affecting the possibility to set up appropriate therapeutic strategies. For this reason, it is necessary to investigate the effects of risk factors, such as cardiovascular diseases, in promoting AD. AD shows not only brain dysfunction, but also alterations in peripheral tissues/organs. Indeed, it exists a reciprocal connection between brain and heart, where cardiovascular alterations participate to AD as well as AD seem to promote cardiovascular dysfunction. In addition, metabolic dysfunction promotes both cardiovascular diseases and AD. In this review, we summarize the pathways involved in the regulation of the brain-heart axis and the effect of metabolism on these pathways. We also present the studies showing the role of the gut microbiota on the brain-heart axis. Herein, we propose recent evidences of the function of Thioredoxin Interacting protein (TXNIP) in mediating the role of metabolism on the brain-heart axis. TXNIP is a key regulator of metabolism at both cellular and body level and it exerts also a pathological function in several cardiovascular diseases as well as in AD.
Collapse
Affiliation(s)
- Lorena Perrone
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, 80131 Naples, Italy
| | - Mariarosaria Valente
- Department of Medicine, University of Udine, 33100 Udine, Italy;
- Clinical Neurology Unit, Department of Neuroscience, Azienda Sanitaria Universitaria Friuli Centrale, University Hospital, 33100 Udine, Italy
| |
Collapse
|
22
|
Vasilyeva LE, Drapkina OM. Impact of Gut Microbiota on the Risk of Cardiometabolic Diseases Development. RATIONAL PHARMACOTHERAPY IN CARDIOLOGY 2021. [DOI: 10.20996/1819-6446-2021-10-14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Obesity is a multifactorial disease that leads to excessive adipose tissue accumulation, mainly visceral fat. Importance and prevalence of obesity has increased significantly in recent decades all over the world. Until now, the pandemic of obesity has been associated more to lifestyle changes: excessive eating and low physical activity. In recent years, special attention has been paid to studying of composition and functions of intestinal microbiota as major factor in development of obesity and related comorbidities, such as hypertension, cardiac ischemia, heart failure and others. It is proved that gut microbiota affects extraction, accumulation and consumption of energy derived from food, lipid metabolism and immune response. It is also revealed that composition of the microbiota is different in thin and obese people. Thus, study of the relationship between intestinal microbiota composition and risk factors for cardiovascular diseases, in particular obesity, is an actual task. The purpose of this review is analyzing of literature about assessment of relationship between composition and functions of intestinal microbiota in the diagnostics, prevention and treatment of obesity and cardiovascular diseases.
Collapse
Affiliation(s)
- L. E. Vasilyeva
- National Medical Research Center for Therapy and Preventive Medicine
| | - O. M. Drapkina
- National Medical Research Center for Therapy and Preventive Medicine
| |
Collapse
|
23
|
Torok J, Zemancikova A, Valaskova Z, Balis P. The Role of Perivascular Adipose Tissue in Early Changes in Arterial Function during High-Fat Diet and Its Combination with High-Fructose Intake in Rats. Biomedicines 2021; 9:biomedicines9111552. [PMID: 34829781 PMCID: PMC8615157 DOI: 10.3390/biomedicines9111552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/21/2021] [Accepted: 10/24/2021] [Indexed: 11/16/2022] Open
Abstract
The aim of the current study was to evaluate the influence of a high-fat diet and its combination with high-fructose intake on young normotensive rats, with focus on the modulatory effect of perivascular adipose tissue (PVAT) on the reactivity of isolated arteries. Six-week-old Wistar–Kyoto rats were treated for 8 weeks with a control diet (10% fat), a high-fat diet (HFD; 45% fat), or a combination of the HFD with a 10% solution of fructose. Contractile and relaxant responses of isolated rat arteries, with preserved and removed PVAT for selected vasoactive stimuli, were recorded isometrically by a force displacement transducer. The results demonstrated that, in young rats, eight weeks of the HFD might lead to body fat accumulation and early excitation of the cardiovascular sympathetic nervous system, as shown by increased heart rate and enhanced arterial contractile responses induced by endogenous noradrenaline released from perivascular sympathetic nerves. The addition of high-fructose intake deteriorated this state by impairment of arterial relaxation and resulted in mild elevation of systolic blood pressure; however, the increase in arterial neurogenic contractions was not detected. The diet-induced alterations in isolated arteries were observed only in the presence of PVAT, indicating that this structure is important in initiation of early vascular changes during the development of metabolic syndrome.
Collapse
Affiliation(s)
- Jozef Torok
- Centre of Experimental Medicine, Institute of Normal and Pathological Physiology, Slovak Academy of Sciences, 813 71 Bratislava, Slovakia; (Z.V.); (P.B.)
- Correspondence: (J.T.); (A.Z.); Tel.: +421-2-3229-6044 (J.T. & A.Z.)
| | - Anna Zemancikova
- Centre of Experimental Medicine, Institute of Normal and Pathological Physiology, Slovak Academy of Sciences, 813 71 Bratislava, Slovakia; (Z.V.); (P.B.)
- Correspondence: (J.T.); (A.Z.); Tel.: +421-2-3229-6044 (J.T. & A.Z.)
| | - Zuzana Valaskova
- Centre of Experimental Medicine, Institute of Normal and Pathological Physiology, Slovak Academy of Sciences, 813 71 Bratislava, Slovakia; (Z.V.); (P.B.)
- Institute of Histology and Embryology, Faculty of Medicine, Comenius University, 811 04 Bratislava, Slovakia
| | - Peter Balis
- Centre of Experimental Medicine, Institute of Normal and Pathological Physiology, Slovak Academy of Sciences, 813 71 Bratislava, Slovakia; (Z.V.); (P.B.)
| |
Collapse
|
24
|
Chen C, Kang M, Wang Q, Liu W, Yang M, Liang S, Xiang Q, Han X, Tao J. Combination of Anoectochilus roxburghii Polysaccharide and Exercise Ameliorates Diet-Induced Metabolic Disorders in Obese Mice. Front Nutr 2021; 8:735501. [PMID: 34692748 PMCID: PMC8531120 DOI: 10.3389/fnut.2021.735501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 08/20/2021] [Indexed: 12/06/2022] Open
Abstract
Metabolic syndrome is a cluster of metabolic disorders that threatens public health. Nevertheless, its exact mechanism and relative intervention remain largely obscure. Accumulating evidence indicate that tither Anoectochilus roxburghii polysaccharide (ARP) or exercise (EX) exhibited the beneficial effects on metabolic health. However, the synergetic beneficial effects of ARP and EX as a combined intervention on obesity-induced metabolic disorders remain largely obscure. Male C57BL/6 mice were fed a high-fat diet (HFD) and intervened with ARP and EX for 12 continuous weeks. The results indicated that the ARP, EX, and ARP combined with EX treatment group regulated lipogenesis by suppressing the fatty acid pathway, dampening the system oxidative stress by stimulating Nrf2-mediated phase II enzyme system, and promoting the mitochondrial function by activating the mitochondrial complexes and PGC-1α in HFD mice. More importantly, the combination of ARP and EX showed an even greater beneficial effects relative to either ARP or EX alone, especially in decreasing reactive oxygen species (ROS) level and increasing adenosine triphosphate (ATP) content. Taken together, these findings further confirmed that ARP and EX could be effective interventions on obesity-induced metabolic abnormalities, and that the combination of ARP and EX exhibited the beneficial synergetic effects.
Collapse
Affiliation(s)
- Cong Chen
- The Institute of Rehabilitation Industry, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Meisong Kang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Qiaowen Wang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Weilin Liu
- The Institute of Rehabilitation Industry, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Minguang Yang
- The Institute of Rehabilitation Industry, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Shengxiang Liang
- The Institute of Rehabilitation Industry, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Qing Xiang
- The Institute of Rehabilitation Industry, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Xiao Han
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, China
| | - Jing Tao
- The Institute of Rehabilitation Industry, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| |
Collapse
|
25
|
Zhang X, Guan L, Tian H, Zeng Z, Chen J, Huang D, Sun J, Guo J, Cui H, Li Y. Risk Factors and Prevention of Viral Hepatitis-Related Hepatocellular Carcinoma. Front Oncol 2021; 11:686962. [PMID: 34568017 PMCID: PMC8458967 DOI: 10.3389/fonc.2021.686962] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 08/20/2021] [Indexed: 12/11/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a common cancer in the world, and its incidence is increasing yearly. Hepatitis B virus (HBV) infection and hepatitis C virus (HCV) infection are important causes of HCC. Liver cirrhosis, age, sex, smoking and drinking, and metabolic risk factors will increase the risk of cancer in HBV/HCV patients. And viral load, APRI, FIB-4, and liver stiffness can all predict the risk of HCC in patients with viral infection. In addition, effective prevention strategies are essential in reducing the risk of HCC. The prevention of HCC involves mainly tertiary prevention strategies, while the primary prevention is based on standardized vaccine injections to prevent the occurrence of HBV/HCV. Eliminating the route of transmission and vaccination will lead to a decrease in the incidence of HCC. Secondary prevention involves effective antiviral treatment of HBV/HCV to prevent the disease from progressing to HCC, and tertiary prevention is actively treating HCC to prevent its recurrence.
Collapse
Affiliation(s)
- Xinhe Zhang
- Gastroenterology Department, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Lin Guan
- Gastroenterology Department, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Haoyu Tian
- The 3rd Clinical Department of China Medical University, Shenyang, China
| | - Zilu Zeng
- Gastroenterology Department, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jiayu Chen
- Gastroenterology Department, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Die Huang
- Gastroenterology Department, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Ji Sun
- Gastroenterology Department, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jiaqi Guo
- Gastroenterology Department, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Huipeng Cui
- Gastroenterology Department, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yiling Li
- Gastroenterology Department, The First Affiliated Hospital of China Medical University, Shenyang, China
| |
Collapse
|
26
|
Puchałowicz K, Kłoda K, Dziedziejko V, Rać M, Wojtarowicz A, Chlubek D, Safranow K. Association of Adiponectin, Leptin and Resistin Plasma Concentrations with Echocardiographic Parameters in Patients with Coronary Artery Disease. Diagnostics (Basel) 2021; 11:diagnostics11101774. [PMID: 34679472 PMCID: PMC8534895 DOI: 10.3390/diagnostics11101774] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 09/22/2021] [Indexed: 01/01/2023] Open
Abstract
The imbalanced network of adipokines may contribute to the development of systemic low-grade inflammation, metabolic diseases and coronary artery disease (CAD). In the last decade, three classic adipokines—adiponectin, leptin and resistin—have been of particular interest in studies of patients with CAD due to their numerous properties in relation to the cardiovascular system. This has directed our attention to the association of adipokines with cardiac structure and function and the development of heart failure (HF), a common end effect of CAD. Thus, the purpose of this study was to analyse the associations of plasma concentrations of adiponectin, leptin and resistin with parameters assessed in the echocardiographic examinations of CAD patients. The presented study enrolled 167 Caucasian patients (133 male; 34 female) with CAD. Anthropometric, echocardiographic and basic biochemical measurements, together with plasma concentrations of adiponectin, leptin and resistin assays, were performed in each patient. Adiponectin concentrations were negatively associated with left ventricular ejection fraction (LVEF) and shortening fraction (LVSF), and positively associated with mitral valve E/A ratio (E/A), left ventricular end-diastolic volume (LVEDV), left ventricular end-diastolic diameter (LVEDD), left ventricular end-systolic diameter LVESD, and left atrium diameter (LAD). Resistin concentrations were negatively associated with E/A. Leptin concentrations, although correlated with HF severity assessed by the New York Heart Association (NYHA) Functional Classification, were not independently associated with the echocardiographic parameters of cardiac structure or function. In conclusion, adiponectin and resistin, but not leptin, are associated with the echocardiographic parameters of cardiac remodelling and dysfunction. These associations suggest that adiponectin and resistin might be involved in mechanisms of cardiac remodelling or compensative response. We also suggest the possible benefits of adiponectin and resistin level measurements in the monitoring of patients with CAD.
Collapse
Affiliation(s)
- Kamila Puchałowicz
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, 70111 Szczecin, Poland; (V.D.); (M.R.); (D.C.); (K.S.)
- Correspondence: ; Tel.: +48-91-4661515; Fax: +48-91-4661516
| | | | - Violetta Dziedziejko
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, 70111 Szczecin, Poland; (V.D.); (M.R.); (D.C.); (K.S.)
| | - Monika Rać
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, 70111 Szczecin, Poland; (V.D.); (M.R.); (D.C.); (K.S.)
| | - Andrzej Wojtarowicz
- Department of Cardiology, Pomeranian Medical University, 70111 Szczecin, Poland;
| | - Dariusz Chlubek
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, 70111 Szczecin, Poland; (V.D.); (M.R.); (D.C.); (K.S.)
| | - Krzysztof Safranow
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, 70111 Szczecin, Poland; (V.D.); (M.R.); (D.C.); (K.S.)
| |
Collapse
|
27
|
Valensi P. Autonomic nervous system activity changes in patients with hypertension and overweight: role and therapeutic implications. Cardiovasc Diabetol 2021; 20:170. [PMID: 34412646 PMCID: PMC8375121 DOI: 10.1186/s12933-021-01356-w] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 07/27/2021] [Indexed: 12/12/2022] Open
Abstract
The incidence and prevalence of hypertension is increasing worldwide, with approximately 1.13 billion of people currently affected by the disease, often in association with other diseases such as diabetes mellitus, chronic kidney disease, dyslipidemia/hypercholesterolemia, and obesity. The autonomic nervous system has been implicated in the pathophysiology of hypertension, and treatments targeting the sympathetic nervous system (SNS), a key component of the autonomic nervous system, have been developed; however, current recommendations provide little guidance on their use. This review discusses the etiology of hypertension, and more specifically the role of the SNS in the pathophysiology of hypertension and its associated disorders. In addition, the effects of current antihypertensive management strategies, including pharmacotherapies, on the SNS are examined, with a focus on imidazoline receptor agonists.
Collapse
Affiliation(s)
- Paul Valensi
- Unit of Endocrinology, Diabetology and Nutrition, Jean Verdier Hospital, CINFO, CRNH-IdF, AP-HP, Paris Nord University, Avenue du 14 Juillet, 93140, Bondy, France.
| |
Collapse
|
28
|
Liu X, Zheng H. Modulation of Sirt1 and FoxO1 on Hypothalamic Leptin-Mediated Sympathetic Activation and Inflammation in Diet-Induced Obese Rats. J Am Heart Assoc 2021; 10:e020667. [PMID: 34259031 PMCID: PMC8483493 DOI: 10.1161/jaha.120.020667] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Background Hypothalamic leptin-mediated signaling contributes to the exaggerated sympatho-excitation and increased blood pressure in obesity-associated hypertension. The aim of the study was to investigate the roles of energy-sensing enzyme sirtuin1 (Sirt1) and forkhead box protein O1 (FoxO1) on the hypothalamic leptin-mediated high sympathetic nerve activity and inflammation in obesity. Methods and Results Sprague Dawley rats were fed with high-fat diet (HFD) for 12 weeks. In vivo, the potential of Srit1 and FoxO1 in the sympathetic effects of leptin was investigated via siRNA injection to knockdown Sirt1 or FoxO1 gene in the arcuate nucleus (ARCN) of hypothalamus in rats. In vitro, the effects of Sirt1 or FoxO1 on leptin-mediated inflammation were observed in proopiomelanocortin (POMC) and microglial cells. Knockdown Sirt1 by siRNA significantly reduced the renal sympathetic nerve activity (RSNA) and blood pressure responses to leptin injection in the ARCN in the HFD rats. Conversely, knockdown FoxO1 significantly enhanced the RSNA and blood pressure responses to leptin injection in the HFD rats. Knockdown Sirt1 reduced the levels of pro-inflammatory cytokines interleukin 6 (IL-6), tumor necrosis factor α (TNF-α), interleukin 1β (IL-1β), C1q/TNF-related protein-1 (CTRP1), and immune cell infiltration in the ARCN in the HFD rats. Knockdown FoxO1 significantly increased the level of IL-6 in the ARCN of HFD rats. In cultured hypothalamic POMC and microglial cells, knockdown Sirt1 significantly reduced leptin-induced IL-6 expression, affected the levels of AMP-activated protein kinase (AMPK) and serine/threonine-specific protein kinase (Akt). Knockdown FoxO1 significantly increased leptin-induced IL-6 in both POMC cells and microglial cells. Conclusions These data suggest that both Sirt1 and FoxO1 are the key modulators of leptin signaling in the hypothalamus contributed to the over sympathetic activation and inflammation in obesity.
Collapse
Affiliation(s)
- Xuefei Liu
- Division of Basic Biomedical Sciences Sanford School of Medicine of the University of South Dakota Vermillion SD
| | - Hong Zheng
- Division of Basic Biomedical Sciences Sanford School of Medicine of the University of South Dakota Vermillion SD
| |
Collapse
|
29
|
Kim LJ, Shin MK, Pho H, Otvos L, Tufik S, Andersen ML, Pham LV, Polotsky VY. Leptin Receptor Blockade Attenuates Hypertension, but Does Not Affect Ventilatory Response to Hypoxia in a Model of Polygenic Obesity. Front Physiol 2021; 12:688375. [PMID: 34276408 PMCID: PMC8283021 DOI: 10.3389/fphys.2021.688375] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/15/2021] [Indexed: 12/24/2022] Open
Abstract
Background Obesity can cause hypertension and exacerbates sleep-disordered breathing (SDB). Leptin is an adipocyte-produced hormone, which increases metabolic rate, suppresses appetite, modulates control of breathing, and increases blood pressure. Obese individuals with high circulating levels of leptin are resistant to metabolic and respiratory effects of leptin, but they appear to be sensitive to hypertensive effects of this hormone. Obesity-induced hypertension has been associated with hyperleptinemia. New Zealand obese (NZO) mice, a model of polygenic obesity, have high levels of circulating leptin and hypertension, and are prone to develop SDB, similarly to human obesity. We hypothesize that systemic leptin receptor blocker Allo-aca will treat hypertension in NZO mice without any effect on body weight, food intake, or breathing. Methods Male NZO mice, 12–13 weeks of age, were treated with Allo-aca (n = 6) or a control peptide Gly11 (n = 12) for 8 consecutive days. Doses of 0.2 mg/kg were administered subcutaneously 2×/day, at 10 AM and 6 PM. Blood pressure was measured by telemetry for 48 h before and during peptide infusion. Ventilation was assessed by whole-body barometric plethysmography, control of breathing was examined by assessing the hypoxic ventilatory response (HVR), and polysomnography was performed during light-phase at baseline and during treatment. Heart rate variability analyses were performed to estimate the cardiac autonomic balance. Results Systemic leptin receptor blockade with Allo-aca did not affect body weight, body temperature, and food intake in NZO mice. Plasma levels of leptin did not change after the treatment with either Allo-aca or the control peptide Gy11. NZO mice were hypertensive at baseline and leptin receptor blocker Allo-aca significantly reduced the mean arterial pressure from 134.9 ± 3.1 to 124.9 ± 5.7 mmHg during the light phase (P < 0.05), whereas the control peptide had no effect. Leptin receptor blockade did not change the heart rate or cardiac autonomic balance. Allo-aca did not affect minute ventilation under normoxic or hypoxic conditions and HVR. Ventilation, apnea index, and oxygen desaturation during NREM and REM sleep did not change with leptin receptor blockade. Conclusion Systemic leptin receptor blockade attenuates hypertension in NZO mice, but does not exacerbate obesity and SDB. Thus, leptin receptor blockade represents a potential pharmacotherapy for obesity-associated hypertension.
Collapse
Affiliation(s)
- Lenise J Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Mi-Kyung Shin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Huy Pho
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Laszlo Otvos
- Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary.,Arrevus, Inc., Raleigh, NC, United States.,OLPE, LLC, Audubon, PA, United States
| | - Sergio Tufik
- Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Monica L Andersen
- Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Luu V Pham
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Vsevolod Y Polotsky
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| |
Collapse
|
30
|
Shin MK, Mitrut R, Gu C, Kim LJ, Yeung BH, Lee R, Pham L, Tang WY, Sham JSK, Cui H, Polotsky VY. Pharmacological and Genetic Blockade of Trpm7 in the Carotid Body Treats Obesity-Induced Hypertension. Hypertension 2021; 78:104-114. [PMID: 33993722 PMCID: PMC8192446 DOI: 10.1161/hypertensionaha.120.16527] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
[Figure: see text].
Collapse
Affiliation(s)
- Mi-Kyung Shin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Roxana Mitrut
- Department of Chemical and Biomolecular Engineering, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Chenjuan Gu
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Lenise J Kim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Bonnie H.Y. Yeung
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Rachel Lee
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Luu Pham
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Wan-Yee Tang
- University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - James S. K. Sham
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Honggang Cui
- Department of Chemical and Biomolecular Engineering, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Vsevolod Y. Polotsky
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| |
Collapse
|
31
|
Macut D, Ognjanović S, Ašanin M, Krljanac G, Milenković T. Metabolic syndrome and myocardial infarction in women. Curr Pharm Des 2021; 27:3786-3794. [PMID: 34115582 DOI: 10.2174/1381612827666210610114029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 04/29/2021] [Indexed: 11/22/2022]
Abstract
Metabolic syndrome (MetS) represents a cluster of metabolic disorders that arise from insulin resistance (IR) and adipose tissue dysfunction. As a consequence, there is an increased risk for type 2 diabetes mellitus and atherosclerotic cardiovascular disease (CVD). MetS is associated with a 2-fold increase in cardiovascular outcomes. Earlier population analyses showed a lower prevalence of MetS in women (23.9%) in comparison to men (27.8%), while later analyses suggested significantly reduced difference due to an increase in prevalence in women aged between 20 and 39. However, the prevalence of MetS in specific populations of women, such as in women with polycystic ovary syndrome, ranges from 16% to almost 50% in some geographic regions. Abdominal fat accumulation and IR syndrome are recognized as the most important factors in the pathogenesis of MetS. After menopause, a decline in insulin sensitivity corresponds to an increase in fat mass, circulating fatty acids, low-density lipoproteins, and triglycerides. Prevalence of MetS in acute coronary syndrome (ACS) is significantly more present in women (55.9%-66.3%) than in men (40.2%-47.3%) in different cohorts. Younger women with ACS had a higher mortality rate than younger men. Acute myocardial infarction (AMI) remains a leading cause of death in aging women. Women with AMI have significantly higher rates of prior congestive heart failure, hypertension history, and diabetes. The role of androgens in CVD pathogenesis in women has not yet been clarified. The current review aims to give an insight into the role of MetS components and inflammation for the development of atherosclerosis, CVD, and AMI in women.
Collapse
Affiliation(s)
- Djuro Macut
- Clinic for Endocrinology, Diabetes, and Diseases of Metabolism, University Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Sanja Ognjanović
- Clinic for Endocrinology, Diabetes, and Diseases of Metabolism, University Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Milika Ašanin
- Clinic for Cardiology, University Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Gordana Krljanac
- Clinic for Cardiology, University Clinical Center of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Tatjana Milenković
- University Clinic of Endocrinology, Diabetes and Metabolic Disorders, Medical Faculty, University of Skopje, Skopje, Macedonia
| |
Collapse
|
32
|
Russo B, Menduni M, Borboni P, Picconi F, Frontoni S. Autonomic Nervous System in Obesity and Insulin-Resistance-The Complex Interplay between Leptin and Central Nervous System. Int J Mol Sci 2021; 22:ijms22105187. [PMID: 34068919 PMCID: PMC8156658 DOI: 10.3390/ijms22105187] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 04/23/2021] [Accepted: 05/12/2021] [Indexed: 02/06/2023] Open
Abstract
The role of the autonomic nervous system in obesity and insulin-resistant conditions has been largely explored. However, the exact mechanisms involved in this relation have not been completely elucidated yet, since most of these mechanisms display a bi-directional effect. Insulin-resistance, for instance, can be caused by sympathetic activation, but, in turn, the associated hyperinsulinemia can activate the sympathetic branch of the autonomic nervous system. The picture is made even more complex by the implicated neural, hormonal and nutritional mechanisms. Among them, leptin plays a pivotal role, being involved not only in appetite regulation and glucose homeostasis but also in energy expenditure. The purpose of this review is to offer a comprehensive view of the complex interplay between leptin and the central nervous system, providing further insights on the impact of autonomic nervous system balance on adipose tissue and insulin-resistance. Furthermore, the link between the circadian clock and leptin and its effect on metabolism and energy balance will be evaluated.
Collapse
Affiliation(s)
- Benedetta Russo
- Unit of Endocrinology, Diabetes and Metabolism, S. Giovanni Calibita, Fatebenefratelli Hospital, 00186 Rome, Italy; (B.R.); (M.M.); (P.B.); (F.P.)
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Marika Menduni
- Unit of Endocrinology, Diabetes and Metabolism, S. Giovanni Calibita, Fatebenefratelli Hospital, 00186 Rome, Italy; (B.R.); (M.M.); (P.B.); (F.P.)
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Patrizia Borboni
- Unit of Endocrinology, Diabetes and Metabolism, S. Giovanni Calibita, Fatebenefratelli Hospital, 00186 Rome, Italy; (B.R.); (M.M.); (P.B.); (F.P.)
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Fabiana Picconi
- Unit of Endocrinology, Diabetes and Metabolism, S. Giovanni Calibita, Fatebenefratelli Hospital, 00186 Rome, Italy; (B.R.); (M.M.); (P.B.); (F.P.)
| | - Simona Frontoni
- Unit of Endocrinology, Diabetes and Metabolism, S. Giovanni Calibita, Fatebenefratelli Hospital, 00186 Rome, Italy; (B.R.); (M.M.); (P.B.); (F.P.)
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
- Correspondence:
| |
Collapse
|
33
|
Wang C, Fu W, Cao S, Xu H, Tian Q, Gan Y, Guo Y, Yan S, Yan F, Yue W, Lv C, Lu Z. Association of adiposity indicators with hypertension among Chinese adults. Nutr Metab Cardiovasc Dis 2021; 31:1391-1400. [PMID: 33812733 DOI: 10.1016/j.numecd.2021.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 01/01/2021] [Accepted: 01/05/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND AND AIMS Obesity has been linked to the development of hypertension, but the comparison of relationships between different obesity parameters with hypertension are scarcely studied with nationally representative Chinese adults samples. We sought to compare the predictive strengths of different obesity indicators to hypertension. METHODS AND RESULTS Data in this study were obtained from the Chinese National Stroke Prevention Project with a nationally representative sample of Chinese aged 40 years and older. A total of 162,880 individuals were included. Multi-level analyses and Receiver Operating Characteristic (ROC) curves were used to examine the risk of hypertension in relation to different obesity parameters, including body mass index (BMI), waist circumference (WC), lipid accumulation product index (LAP), visceral adiposity index (VAI), and body adiposity index (BAI). As results, the BMI, WC, LAP, VAI, and BAI were positively associated with the risk of hypertension (P < 0.001). In total, BMI had the strongest association with hypertension when compared with other obesity indicators, and one SD up of BMI would increase the risk of hypertension by 53.9% (95% CI: 1.514-1.566). For men, WC was most associated with hypertension, and one SD up of WC would increase the risk of hypertension by 73.3% (95% CI: 1.685-1.782). For women, BMI showed the strongest predictive power, one SD up of BMI would increase the risk of hypertension by 51.0% (95% CI: 1.479-1.543). CONCLUSIONS BMI, WC, LAP, VAI, and BAI are all positively corrected to hypertension, but gender disparities should be considered in predicting hypertension by obesity indicators.
Collapse
Affiliation(s)
- Chao Wang
- Department of Social Medicine and Health Management, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenning Fu
- School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shiyi Cao
- Department of Social Medicine and Health Management, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongbin Xu
- Department of Social Medicine and Health Management, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qingfeng Tian
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Yong Gan
- Department of Social Medicine and Health Management, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yingying Guo
- Children's Healthcare Department, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shijiao Yan
- School of International Education, Hainan Medical University, Haikou, China
| | - Feng Yan
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Wei Yue
- Neurology Department, Tianjin Huanhu Hospital, Tianjin, China
| | - Chuanzhu Lv
- Emergency and Trauma College, Hainan Medical University, Haikou, China; Department of Emergency, The Second Affiliated Hospital of Hainan Medical University, Haikou, China.
| | - Zuxun Lu
- Department of Social Medicine and Health Management, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| |
Collapse
|
34
|
Kawarazaki W, Fujita T. Kidney and epigenetic mechanisms of salt-sensitive hypertension. Nat Rev Nephrol 2021; 17:350-363. [PMID: 33627838 DOI: 10.1038/s41581-021-00399-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/21/2021] [Indexed: 02/07/2023]
Abstract
Dietary salt intake increases blood pressure (BP) but the salt sensitivity of BP differs between individuals. The interplay of ageing, genetics and environmental factors, including malnutrition and stress, contributes to BP salt sensitivity. In adults, obesity is often associated with salt-sensitive hypertension. The children of women who experience malnutrition during pregnancy are at increased risk of developing obesity, diabetes and salt-sensitive hypertension as adults. Similarly, the offspring of mice that are fed a low-protein diet during pregnancy develop salt-sensitive hypertension in association with aberrant DNA methylation of the gene encoding type 1A angiotensin II receptor (AT1AR) in the hypothalamus, leading to upregulation of hypothalamic AT1AR and renal sympathetic overactivity. Ageing is also associated with salt-sensitive hypertension. In aged mice, promoter methylation leads to reduced kidney production of the anti-ageing factor Klotho and a decrease in circulating soluble Klotho. In the setting of Klotho deficiency, salt-induced activation of the vascular Wnt5a-RhoA pathway leads to ageing-associated salt-sensitive hypertension, potentially as a result of reduced renal blood flow and increased peripheral resistance. Thus, kidney mechanisms and aberrant DNA methylation of certain genes are involved in the development of salt-sensitive hypertension during fetal development and old age. Three distinct paradigms of epigenetic memory operate on different timescales in prenatal malnutrition, obesity and ageing.
Collapse
Affiliation(s)
- Wakako Kawarazaki
- Division of Clinical Epigenetics, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Toshiro Fujita
- Division of Clinical Epigenetics, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, Japan. .,School of Medicine, Shinshu University, Matsumoto, Japan. .,Research Center for Social Systems, Shinshu University, Matsumoto, Japan.
| |
Collapse
|
35
|
Qiao W, Zhang X, Kan B, Vuong AM, Xue S, Zhang Y, Li B, Zhao Q, Guo D, Shen X, Yang S. Hypertension, BMI, and cardiovascular and cerebrovascular diseases. Open Med (Wars) 2021; 16:149-155. [PMID: 33585690 PMCID: PMC7862997 DOI: 10.1515/med-2021-0014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 10/24/2020] [Accepted: 11/06/2020] [Indexed: 11/24/2022] Open
Abstract
Hypertension is associated with body mass index (BMI) and cardiovascular and cerebrovascular diseases (CCDs). Whether hypertension modifies the relationship between BMI and CCDs is still unclear. We examined the association between BMI and CCDs and tested whether effect measure modification was present by hypertension. We identified a population-based sample of 3,942 participants in Shuncheng, Fushun, Liaoning, China. Hypertension was defined as any past use of antihypertensive medication or having a measured systolic/diastolic blood pressure ≥130/80 mm Hg. BMI was calculated from measured body weight and body height. Data on diagnosed CCDs were self-reported and validated in the medical records. We used logistic regression models to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for associations between BMI and CCDs. Higher BMI was associated with increased odds of having CCDs (OR = 1.19, 95% CI: 1.07–1.31). This association was significantly modified by hypertension (P for interaction <0.001), with positive associations observed among hypertensive individuals (OR = 1.28, 95% CI: 1.14–1.42). Age, sex, and diabetic status did not modify the relationship between BMI and CCDs (all P for interaction >0.10). Although higher BMI was associated with increased odds of CCDs, the relationship was mainly limited to hypertensive patients.
Collapse
Affiliation(s)
- Wenjing Qiao
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 232-1163 Xinmin Street, Changchun, 130021, Jilin, China
| | - Xinyi Zhang
- Department of Noninfectious Chronic Diseases Control, Disease Prevention and Control Center, Fushun, Liaoning, China
| | - Bo Kan
- Department of Clinical Laboratory, The Bethune Second Affiliated Hospital, Jilin University, Changchun, Jilin, China
| | - Ann M Vuong
- Department of Epidemiology and Biostatistics, School of Public Health, University of Nevada, Las Vegas, United States of America
| | - Shanshan Xue
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 232-1163 Xinmin Street, Changchun, 130021, Jilin, China
| | - Yuzheng Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 232-1163 Xinmin Street, Changchun, 130021, Jilin, China
| | - Binbin Li
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 232-1163 Xinmin Street, Changchun, 130021, Jilin, China
| | - Qianqian Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 232-1163 Xinmin Street, Changchun, 130021, Jilin, China
| | - Dingjie Guo
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 232-1163 Xinmin Street, Changchun, 130021, Jilin, China
| | - Xue Shen
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 232-1163 Xinmin Street, Changchun, 130021, Jilin, China
| | - Shuman Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 232-1163 Xinmin Street, Changchun, 130021, Jilin, China
| |
Collapse
|
36
|
Srivastava S, Rathor R, Singh S, Kumar B, Suryakumar G. Obesity: A Risk Factor for COVID-19. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1352:195-210. [DOI: 10.1007/978-3-030-85109-5_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
37
|
Dessie G, Ayelign B, Akalu Y, Shibabaw T, Molla MD. Effect of Leptin on Chronic Inflammatory Disorders: Insights to Therapeutic Target to Prevent Further Cardiovascular Complication. Diabetes Metab Syndr Obes 2021; 14:3307-3322. [PMID: 34305402 PMCID: PMC8296717 DOI: 10.2147/dmso.s321311] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 06/30/2021] [Indexed: 01/08/2023] Open
Abstract
In response to obesity-associated chronic inflammatory disorders, adipose tissue releases a biologically active peptide known as leptin. Leptin activates the secretion of chemical mediators, which contribute to the pathogenesis of chronic inflammatory disorders, such as rheumatoid arthritis (RA), systemic lupus erythematosus (SLE) and psoriasis. Conversely, adiposity and obesity are the major aggravating risk factors in the pathogenesis of metabolic syndrome (MetS), including type II diabetes mellitus and obesity-associated hypertension. Elevated level of leptin in obesity-associated hypertension causes an increase in the production of aldosterone, which also results in elevation of arterial blood pressure. Hyperleptinemia is associated with the progress of the atherosclerosis through secretion of pro-inflammatory cytokines, like interleukin 6 (IL-6), tumor necrosis factor α (TNF-α), IL-17, and other cytokines to promote inflammation. The release of those cytokines leads to chronic inflammatory disorders and obesity-associated MetS. Thus, the aberrant leptin level in both MetS and chronic inflammatory disorders also leads to the complication of cardiovascular diseases (CVD). Therapeutic target of leptin regarding its pro-inflammatory effect and dysregulated sympathetic nervous system activity may prevent further cardiovascular complication. This review mainly assesses the mechanism of leptin on the pathogenesis and further cardiovascular risk complication of chronic inflammatory disorders.
Collapse
Affiliation(s)
- Gashaw Dessie
- Department of Biochemistry, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
- Correspondence: Gashaw Dessie Tel +251 975152796 Email
| | - Birhanu Ayelign
- Department of Immunology and Molecular Biology, School of Biomedical and Laboratory Science, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Yonas Akalu
- Department of Physiology, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Tewodros Shibabaw
- Department of Biochemistry, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Meseret Derbew Molla
- Department of Biochemistry, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| |
Collapse
|
38
|
Kang KW, Ok M, Lee SK. Leptin as a Key between Obesity and Cardiovascular Disease. J Obes Metab Syndr 2020; 29:248-259. [PMID: 33342767 PMCID: PMC7789022 DOI: 10.7570/jomes20120] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/03/2020] [Accepted: 12/13/2020] [Indexed: 12/14/2022] Open
Abstract
Obesity increases the risk of cardiovascular disease through various influencing factors. Leptin, which is predominantly secreted by adipose tissue, regulates satiety homeostasis and energy balance, and influences cardiovascular functions directly and indirectly. Leptin appears to play a role in heart protection in leptin-deficient and leptin-receptor-deficient rodent model experiments. Hyperleptinemia or leptin resistance in human obesity influences the vascular endothelium, cardiovascular structure and functions, inflammation, and sympathetic activity, which may lead to cardiovascular disease. Leptin is involved in many processes, including signal transduction, vascular endothelial function, and cardiac structural remodeling. However, the dual (positive and negative) regulator effect of leptin and its receptor on cardiovascular disease has not been completely understood. The protective role of leptin signaling in cardiovascular disease could be a promising target for cardiovascular disease prevention in obese patients.
Collapse
Affiliation(s)
- Ki-Woon Kang
- Division of Cardiology, Department of Internal Medicine, Eulji University School of Medicine, Daejeon, Korea
| | - Minho Ok
- Department of Cardiovascular Pharmacology, Mokpo National University, Mokpo, Korea
| | - Seong-Kyu Lee
- Division of Endocrinology, Department of Internal Medicine, Daejeon, Korea.,Department of Biochemistry-Molecular Biology, Eulji University School of Medicine, Daejeon, Korea
| |
Collapse
|
39
|
Inflammation and hypertension: more evidence but is there anything new? J Hum Hypertens 2020; 35:561-563. [PMID: 33288857 DOI: 10.1038/s41371-020-00463-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/09/2020] [Accepted: 11/25/2020] [Indexed: 11/08/2022]
|
40
|
Choi SY, Lee SY, Jang DH, Lee SJ, Cho JY, Kim SH. Inhibitory effects of Porphyra dentata extract on 3T3-L1 adipocyte differentiation. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2020; 62:854-863. [PMID: 33987565 PMCID: PMC7721580 DOI: 10.5187/jast.2020.62.6.854] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 09/26/2020] [Accepted: 10/02/2020] [Indexed: 12/04/2022]
Abstract
This study was aimed to investigate the inhibitory effects of Porphyra
dentata (P. dentata) extract on the adipogenesis
of 3T3-L1 cells and evaluate its anti-obesity effect. The proliferation of
3T3-L1 cells and differentiation of adipocytes under treatment of P.
dentata extract was examined by measuring the cell viability using
alamarBlue assay and lipid droplets by Oil Red O staining. Results showed that
P. dentata extract has no cytotoxicity effect and lipid
droplets formation decreased in a concentration-dependent manner in 3T3-L1
cells. It has been confirmed that transcription factors affecting lipid
accumulation and anti-adipogenic effects during cell differentiation are linked
to P. dentata extract. We observed that P.
dentata shows lowering the mRNA expression of peroxisome
proliferator-activated receptor γ2 (PPARγ2), CCAAT/enhancer
binding protein α (C/EBPα) that adipogenesis-associated key
transcription factors and inhibiting adipogenesis in the early stages of
differentiation. Treating the cells with P. dentata did not
only suppressed PPARγ2 and C/EBPα but also significantly decreased
the mRNA expression of adiponectin, Leptin, fatty acid synthase, adipocyte
protein 2, and Acetyl-coA carboxylase 1. Overall, the P.
dentata extract demonstrated inhibitory property in adipogenesis,
which has a potential effect in anti-obesity in 3T3-L1 cells.
Collapse
Affiliation(s)
- Su-Young Choi
- Department of Animal Science, Chonnam National University, Gwangju 61186, Korea
| | - Su Yeon Lee
- Department of Food Science and Technology, Chonnam National University, Gwangju 61186, Korea
| | - Da Hye Jang
- Department of Food Science and Technology, Chonnam National University, Gwangju 61186, Korea
| | - Suk Jun Lee
- Department of Biomedical Laboratory Science, College of Health & Medical Sciences, Cheongju University, Chungbuk 28503, Korea
| | - Jeong-Yong Cho
- Department of Food Science and Technology, Chonnam National University, Gwangju 61186, Korea
| | - Sung-Hak Kim
- Department of Animal Science, Chonnam National University, Gwangju 61186, Korea
| |
Collapse
|
41
|
Dragano NRV, Fernø J, Diéguez C, López M, Milbank E. Reprint of: Recent Updates on Obesity Treatments: Available Drugs and Future Directions. Neuroscience 2020; 447:191-215. [PMID: 33046217 DOI: 10.1016/j.neuroscience.2020.08.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In the last thirty years, obesity has reached epidemic proportions and is now regarded as a major health issue in contemporary society trending to serious economic and social burdens. The latest projections of the World Health Organization are alarming. By 2030, nearly 60% of the worldwide population could be either obese or overweight, highlighting the needs to find innovative treatments. Currently, bariatric surgery is the most effective way to efficiently lower body mass. Although great improvements in terms of recovery and patient care were made in these surgical procedures, bariatric surgery remains an option for extreme forms of obesity and seems unable to tackle obesity pandemic expansion. Throughout the last century, numerous pharmacological strategies targeting either peripheral or central components of the energy balance regulatory system were designed to reduce body mass, some of them reaching sufficient levels of efficiency and safety. Nevertheless, obesity drug therapy remains quite limited on its effectiveness to actually overcome the obesogenic environment. Thus, innovative unimolecular polypharmacology strategies, able to simultaneously target multiple actors involved in the obesity initiation and expansion, were developed during the last ten years opening a new promising avenue in the pharmacological management of obesity. In this review, we first describe the clinical features of obesity-associated conditions and then focus on the outcomes of currently approved drug therapies for obesity as well as new ones expecting to reach the clinic in the near future.
Collapse
Affiliation(s)
- Nathalia R V Dragano
- NeurObesity Group, Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela 15782, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 15706, Spain.
| | - Johan Fernø
- Hormone Laboratory, Haukeland University Hospital, N-5021 Bergen, Norway
| | - Carlos Diéguez
- NeurObesity Group, Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela 15782, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 15706, Spain
| | - Miguel López
- NeurObesity Group, Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela 15782, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 15706, Spain
| | - Edward Milbank
- NeurObesity Group, Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela 15782, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 15706, Spain.
| |
Collapse
|
42
|
Lu SC, Akanji AO. Leptin, Obesity, and Hypertension: A Review of Pathogenetic Mechanisms. Metab Syndr Relat Disord 2020; 18:399-405. [PMID: 32876506 DOI: 10.1089/met.2020.0065] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The adipokine leptin is expressed at higher concentrations in obese subjects, who also incidentally have a higher prevalence of hypertension. The pathogenesis of this obesity-related hypertension is controversial and is believed to be related to many factors including increased sympathetic activity, abnormalities of the renin-angiotensin system, sodium retention, and an endotheliopathy acting independently or in concert with increased circulating leptin. This review discusses the potential mechanisms through which changes in leptin signal transduction pathways in tissues with the leptin receptor, especially the hypothalamus, mediate the pathogenetic relationships between obesity and hypertension. The hypothesis is explored that leptin effects on blood pressure (BP) are meditated by the downstream effects of hypothalamic leptin signaling and ultimately result in activation of specific melanocortin receptors located on sympathetic neurons in the spinal cord. The physiological consequences of this sympathetic activation of the heart and kidney are activation of the renin-angiotensin system, sodium retention and circulatory expansion and finally, elevated BP. This sequence of events has been elegantly demonstrated with leptin infusion and gene knockout studies in animal models but has not been convincingly reproducibly confirmed in humans. Further studies in human subjects on the specific roles of hypothalamic leptin in essential hypertension are indicated as elucidation of the signaling pathways should provide better understanding of the role of weight loss in BP control and afford an additional mechanism for pharmacologic control of BP in adults and children at risk of cardiovascular disease.
Collapse
Affiliation(s)
- Song Chi Lu
- Department of Medical Sciences, Frank H. Netter School of Medicine, NH-MED, Quinnipiac University, Hamden, Connecticut, USA
| | - Abayomi O Akanji
- Department of Medical Sciences, Frank H. Netter School of Medicine, NH-MED, Quinnipiac University, Hamden, Connecticut, USA
| |
Collapse
|
43
|
Magalhães ESDS, Méio MDBB, Peixoto-Filho FM, Gonzalez S, da Costa ACC, Moreira MEL. Pregnancy-induced hypertension, preterm birth, and cord blood adipokine levels. Eur J Pediatr 2020; 179:1239-1246. [PMID: 32062709 DOI: 10.1007/s00431-020-03586-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/15/2020] [Accepted: 01/16/2020] [Indexed: 11/24/2022]
Abstract
Maternal hypertension may alter physiological parameters, dysregulating the release of hormones such as adipokines, thus influencing the fetal growth course. This study investigated whether hypertensive disorders of pregnancy alter cord blood adipokine levels and correlate these with anthropometric parameters in preterm infants. This is a prospective cohort study with pregnant women < 37-week gestation with and without hypertension and their offspring. Cord blood leptin, adiponectin, and ghrelin were analyzed by LUMINEX®. These adipokines were compared between the groups exposed or not to gestational hypertension using non-parametric statistical tests. The hypertensive pregnancies had significantly higher cord blood leptin (1.00 (IQR 0.67-1.20 ng/mL)) and adiponectin (18.52 (IQR 17.52-25.13 μg/mL)) levels than those without hypertension (0.07 (IQR 0.06-0.08 ng/mL) and 8.13 (IQR 6.50-8.68 μg/mL), respectively, p < 0.0001). The adipokine levels were higher in AGA and SGA infants in the exposed group for both moderate and late preterm. SGA had significantly higher ghrelin levels than the AGA infants. Ghrelin levels were negatively correlated with birth weight (r = - 0.613, p < 0.001), birth length (r = - 0.510, p < 0.001), head circumference (- 0.346, p < 0.002), and gestational age (r = - 0.612, p < 0.001).Conclusions: Our findings demonstrate an increase in adipokine levels in the cord blood of preterm newborn infants exposed to maternal hypertension. What is Known: • Clinical evidence suggests that concentration of the serum adipokines may be affected by risk of hypertension in both adults and pregnant women. • Maternal profile as hypertension alters intrauterine environment and could affect the function of fetal metabolism, impairing fetal growth. What is New: • Gestational hypertension modifies the adipokine profile, with higher rates already present at birth in cord blood samples. • Within the hypertensive group and stratifying for gestation age, ghrelin concentrations were higher in SGA newborns, both in the moderate and late preterm, compared with AGA newborns.
Collapse
Affiliation(s)
- Elizabeth Soares da Silva Magalhães
- Clinical Research Unit, Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Instituto Fernandes Figueira, Fundação Oswaldo Cruz, Av. Rui Barbosa, 716, Flamengo, Rio de Janeiro, RJ, 22250-020, Brazil.
| | - Maria Dalva Barbosa Baker Méio
- Clinical Research Unit, Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Instituto Fernandes Figueira, Fundação Oswaldo Cruz, Av. Rui Barbosa, 716, Flamengo, Rio de Janeiro, RJ, 22250-020, Brazil
| | - Fernando Maia Peixoto-Filho
- Department of Obstetrics, Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Sayonara Gonzalez
- Laboratory of Genomic Medicine, Department of Medical Genetics, Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Ana Carolina Carioca da Costa
- Clinical Research Unit, Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Instituto Fernandes Figueira, Fundação Oswaldo Cruz, Av. Rui Barbosa, 716, Flamengo, Rio de Janeiro, RJ, 22250-020, Brazil
| | - Maria Elisabeth Lopes Moreira
- Clinical Research Unit, Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Instituto Fernandes Figueira, Fundação Oswaldo Cruz, Av. Rui Barbosa, 716, Flamengo, Rio de Janeiro, RJ, 22250-020, Brazil
| |
Collapse
|
44
|
Banerjee M, Gupta S, Sharma P, Shekhawat J, Gauba K. Obesity and COVID-19: A Fatal Alliance. Indian J Clin Biochem 2020; 35:410-417. [PMID: 32837031 PMCID: PMC7351562 DOI: 10.1007/s12291-020-00909-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 06/19/2020] [Indexed: 02/08/2023]
Abstract
Most people infected with Severe Acute Respiratory Syndrome Coronavirus 2 (SARS CoV2) are mildly symptomatic while few progress to critical illness and succumb to the infection. The disease severity is seen to be associated with increasing age and underlying comorbid conditions. Obesity, responsible for various metabolic disorders, appears to be a risk factor in determining the severity of infection despite any age group. Though this association is clinically relevant, the mechanisms underlying are not fully elucidated. SARS CoV2 enters host cell via Angiotensin Converting Enzyme 2 receptor, expression of which is upregulated in visceral fat tissue in obese people, underscoring the fact that adipose tissue is a potential reservoir for virus. Adipose tissue is also a source of many proinflammatory mediators and adipokines. High baseline C-Reactive Protein, interleukin 6, hyperleptinemia with Leptin resistance and hypoadiponectinemia associated with obesity explains the preexisting inflammatory state in obese individuals which predisposes them to worse outcomes and fatality.
Collapse
Affiliation(s)
- Mithu Banerjee
- Department of Biochemistry, All India Institute of Medical Sciences, Jodhpur, Basni Phase 2, Jodhpur, Rajasthan 342005 India
| | - Shruti Gupta
- Department of Biochemistry, All India Institute of Medical Sciences, Jodhpur, Basni Phase 2, Jodhpur, Rajasthan 342005 India
| | - Praveen Sharma
- Department of Biochemistry, All India Institute of Medical Sciences, Jodhpur, Basni Phase 2, Jodhpur, Rajasthan 342005 India
| | - Jyoti Shekhawat
- Department of Biochemistry, All India Institute of Medical Sciences, Jodhpur, Basni Phase 2, Jodhpur, Rajasthan 342005 India
| | - Kavya Gauba
- Department of Biochemistry, All India Institute of Medical Sciences, Jodhpur, Basni Phase 2, Jodhpur, Rajasthan 342005 India
| |
Collapse
|
45
|
Gauda EB, Conde S, Bassi M, Zoccal DB, Almeida Colombari DS, Colombari E, Despotovic N. Leptin: Master Regulator of Biological Functions that Affects Breathing. Compr Physiol 2020; 10:1047-1083. [PMID: 32941688 DOI: 10.1002/cphy.c190031] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Obesity is a global epidemic in developed countries accounting for many of the metabolic and cardiorespiratory morbidities that occur in adults. These morbidities include type 2 diabetes, sleep-disordered breathing (SDB), obstructive sleep apnea, chronic intermittent hypoxia, and hypertension. Leptin, produced by adipocytes, is a master regulator of metabolism and of many other biological functions including central and peripheral circuits that control breathing. By binding to receptors on cells and neurons in the brainstem, hypothalamus, and carotid body, leptin links energy and metabolism to breathing. In this comprehensive article, we review the central and peripheral locations of leptin's actions that affect cardiorespiratory responses during health and disease, with a particular focus on obesity, SDB, and its effects during early development. Obesity-induced hyperleptinemia is associated with centrally mediated hypoventilation with decrease CO2 sensitivity. On the other hand, hyperleptinemia augments peripheral chemoreflexes to hypoxia and induces sympathoexcitation. Thus, "leptin resistance" in obesity is relative. We delineate the circuits responsible for these divergent effects, including signaling pathways. We review the unique effects of leptin during development on organogenesis, feeding behavior, and cardiorespiratory responses, and how undernutrition and overnutrition during critical periods of development can lead to cardiorespiratory comorbidities in adulthood. We conclude with suggestions for future directions to improve our understanding of leptin dysregulation and associated clinical diseases and possible therapeutic targets. Lastly, we briefly discuss the yin and the yang, specifically the contribution of relative adiponectin deficiency in adults with hyperleptinemia to the development of metabolic and cardiovascular disease. © 2020 American Physiological Society. Compr Physiol 10:1047-1083, 2020.
Collapse
Affiliation(s)
- Estelle B Gauda
- Division of Neonatology, Department of Pediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Silvia Conde
- CEDOC, NOVA Medical School, Faculdade de Ciências Médicas, Lisboa, Portugal
| | - Mirian Bassi
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Daniel B Zoccal
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Debora Simoes Almeida Colombari
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Eduardo Colombari
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Nikola Despotovic
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
46
|
Abstract
PURPOSE OF REVIEW Obesity increases the risk of hypertension. However, blood pressure decreases before any significant loss of body weight after bariatric surgery. We review the mechanisms of the temporal dissociation between blood pressure and body weight after bariatric surgery. RECENT FINDINGS Restrictive and bypass bariatric surgery lower blood pressure and plasma leptin levels within days of the procedure in both hypertensive and normotensive morbidly obese patients. Rapidly decreasing plasma leptin levels and minimal loss of body weight point to reduced sympathetic nervous system activity as the underlying mechanism of rapid blood pressure decline after bariatric surgery. After the early rapid decline, blood pressure does not decrease further in patients who, while still obese, experience a steady loss of body weight for the subsequent 12 months. The divergent effects of bariatric surgery on blood pressure and body weight query the role of excess body weight in the pathobiology of the obesity phenotype of hypertension. The decrease in blood pressure after bariatric surgery is moderate and independent of body weight. The lack of temporal relationship between blood pressure reduction and loss of body weight for 12 months after sleeve gastrectomy questions the nature of the mechanisms underlying obesity-associated hypertension.
Collapse
Affiliation(s)
- Rohan Samson
- Section of Cardiology, John W. Deming Department of Medicine, Tulane University School of Medicine, 1430 Tulane Avenuew, SL-48, New Orleans, LA, 70112, USA
| | - Karnika Ayinapudi
- Section of Cardiology, John W. Deming Department of Medicine, Tulane University School of Medicine, 1430 Tulane Avenuew, SL-48, New Orleans, LA, 70112, USA
| | - Thierry H Le Jemtel
- Section of Cardiology, John W. Deming Department of Medicine, Tulane University School of Medicine, 1430 Tulane Avenuew, SL-48, New Orleans, LA, 70112, USA.
| | - Suzanne Oparil
- Vascular Biology and Hypertension Program, Division of Cardiovascular Disease, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| |
Collapse
|
47
|
Shi Z, Pelletier NE, Wong J, Li B, Sdrulla AD, Madden CJ, Marks DL, Brooks VL. Leptin increases sympathetic nerve activity via induction of its own receptor in the paraventricular nucleus. eLife 2020; 9:e55357. [PMID: 32538782 PMCID: PMC7316512 DOI: 10.7554/elife.55357] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 06/12/2020] [Indexed: 12/11/2022] Open
Abstract
Whether leptin acts in the paraventricular nucleus (PVN) to increase sympathetic nerve activity (SNA) is unclear, since PVN leptin receptors (LepR) are sparse. We show in rats that PVN leptin slowly increases SNA to muscle and brown adipose tissue, because it induces the expression of its own receptor and synergizes with local glutamatergic neurons. PVN LepR are not expressed in astroglia and rarely in microglia; instead, glutamatergic neurons express LepR, some of which project to a key presympathetic hub, the rostral ventrolateral medulla (RVLM). In PVN slices from mice expressing GCaMP6, leptin excites glutamatergic neurons. LepR are expressed mainly in thyrotropin-releasing hormone (TRH) neurons, some of which project to the RVLM. Injections of TRH into the RVLM and dorsomedial hypothalamus increase SNA, highlighting these nuclei as likely targets. We suggest that this neuropathway becomes important in obesity, in which elevated leptin maintains the hypothalamic pituitary thyroid axis, despite leptin resistance.
Collapse
Affiliation(s)
- Zhigang Shi
- Department of Physiology and PharmacologyPortlandUnited States
| | | | - Jennifer Wong
- Department of Physiology and PharmacologyPortlandUnited States
| | - Baoxin Li
- Department of Physiology and PharmacologyPortlandUnited States
| | - Andrei D Sdrulla
- Department of Anesthesiology and Perioperative MedicinePortlandUnited States
| | | | - Daniel L Marks
- Department of Pediatrics, Pape Family Pediatric Research Institute, Brenden-Colson Center for Pancreatic Care Oregon Health & Science UniversityPortlandUnited States
| | | |
Collapse
|
48
|
Hamjane N, Benyahya F, Nourouti NG, Mechita MB, Barakat A. Cardiovascular diseases and metabolic abnormalities associated with obesity: What is the role of inflammatory responses? A systematic review. Microvasc Res 2020; 131:104023. [PMID: 32485192 DOI: 10.1016/j.mvr.2020.104023] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 05/19/2020] [Accepted: 05/24/2020] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Obesity is a chronic disease responsible for a high morbidity and mortality rate, with an increasing worldwide prevalence. Obesity is associated with immune responses characterized by chronic systemic inflammation. This article focuses on the mechanisms that explain the proposed link between obesity-associated diseases and inflammation. Also, it describes the role of inflammatory molecules in obesity-associated metabolic abnormalities. METHODS More than 200 articles were selected and consulted by an online English search using various electronic search databases. Predefined key-words for the pathogenesis of obesity-induced inflammation and associated diseases, as well as the role of various inflammatory molecules, were used. RESULTS We have summarized the data of the articles consulted in this research and we have found that obesity is associated with a low-grade inflammation resulting from the change of adipose tissue (AT). The AT produces a variety of inflammatory molecules called adipocytokines that are involved in the onset of systemic low-grade inflammation which is the link between obesity and associated-chronic abnormalities; such as insulin resistance, metabolic syndrome, cardiovascular disease (CVD), hypertension, diabetes, and some cancers. Also, we have searched all the inflammatory molecules involved in this pathogenesis and we have briefly described the role of 16 of them which are the most related to obesity-associated inflammation. The results have shown that there are inflammatory molecules that have a positive relationship with the pathogenesis of obesity-related diseases and others have a negative relationship with this pathogenesis. CONCLUSION Inflammation plays a crucial role in the development of various metabolic-abnormalities related to obesity. In this regard, the management of obesity may help reduce the risk of cardiovascular disease and other metabolic complications by inhibiting inflammatory mechanisms.
Collapse
Affiliation(s)
- Nadia Hamjane
- Laboratory of Biomedical Genomics and Oncogenetics, Faculty of Sciences and Technology, Abdelmalek Essaadi University, Tangier, Morocco.
| | | | - Naima Ghailani Nourouti
- Laboratory of Biomedical Genomics and Oncogenetics, Faculty of Sciences and Technology, Abdelmalek Essaadi University, Tangier, Morocco
| | - Mohcine Bennani Mechita
- Laboratory of Biomedical Genomics and Oncogenetics, Faculty of Sciences and Technology, Abdelmalek Essaadi University, Tangier, Morocco
| | - Amina Barakat
- Laboratory of Biomedical Genomics and Oncogenetics, Faculty of Sciences and Technology, Abdelmalek Essaadi University, Tangier, Morocco
| |
Collapse
|
49
|
Molecular Mechanisms of Adiponectin-Induced Attenuation of Mechanical Stretch-Mediated Vascular Remodeling. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:6425782. [PMID: 32566092 DOI: 10.1155/2020/6425782] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 04/12/2020] [Accepted: 04/17/2020] [Indexed: 12/30/2022]
Abstract
Hypertension induces vascular hypertrophy, which changes blood vessels structurally and functionally, leading to reduced tissue perfusion and further hypertension. It is also associated with dysregulated levels of the circulating adipokines leptin and adiponectin (APN). Leptin is an obesity-associated hormone that promotes vascular smooth muscle cell (VSMC) hypertrophy. APN is a cardioprotective hormone that has been shown to attenuate hypertrophic cardiomyopathy. In this study, we investigated the molecular mechanisms of hypertension-induced VSMC remodeling and the involvement of leptin and APN in this process. To mimic hypertension, the rat portal vein (RPV) was mechanically stretched, and the protective effects of APN on mechanical stretch-induced vascular remodeling and the molecular mechanisms involved were examined by using 10 μg/ml APN. Mechanically stretching the RPV significantly decreased APN protein expression after 24 hours and APN mRNA expression in a time-dependent manner in VSMCs. The mRNA expression of the APN receptors AdipoR1, AdipoR2, and T-cadherin significantly increased after 15 hours of stretch. The ratio of APN/leptin expression in VSMCs significantly decreased after 24 hours of mechanical stretch. Stretching the RPV for 3 days increased the weight and [3H]-leucine incorporation significantly, whereas APN significantly reduced hypertrophy in mechanically stretched vessels. Stretching the RPV for 10 minutes significantly decreased phosphorylation of LKB1, AMPK, and eNOS, while APN significantly increased p-LKB1, p-AMPK, and p-eNOS in stretched vessels. Mechanical stretch significantly increased p-ERK1/2 after 10 minutes, whereas APN significantly reduced stretch-induced ERK1/2 phosphorylation. Stretching the RPV also significantly increased ROS generation after 1 hour, whereas APN significantly decreased mechanical stretch-induced ROS production. Exogenous leptin (3.1 nM) markedly increased GATA-4 nuclear translocation in VSMCs, whereas APN significantly attenuated leptin-induced GATA-4 nuclear translocation. Our results decipher molecular mechanisms of APN-induced attenuation of mechanical stretch-mediated vascular hypertrophy, with the promising potential of ultimately translating this protective hormone into the clinic.
Collapse
|
50
|
Dragano NRV, Fernø J, Diéguez C, López M, Milbank E. Recent Updates on Obesity Treatments: Available Drugs and Future Directions. Neuroscience 2020; 437:215-239. [PMID: 32360593 DOI: 10.1016/j.neuroscience.2020.04.034] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 04/17/2020] [Accepted: 04/20/2020] [Indexed: 12/12/2022]
Abstract
In the last thirty years, obesity has reached epidemic proportions and is now regarded as a major health issue in contemporary society trending to serious economic and social burdens. The latest projections of the World Health Organization are alarming. By 2030, nearly 60% of the worldwide population could be either obese or overweight, highlighting the needs to find innovative treatments. Currently, bariatric surgery is the most effective way to efficiently lower body mass. Although great improvements in terms of recovery and patient care were made in these surgical procedures, bariatric surgery remains an option for extreme forms of obesity and seems unable to tackle obesity pandemic expansion. Throughout the last century, numerous pharmacological strategies targeting either peripheral or central components of the energy balance regulatory system were designed to reduce body mass, some of them reaching sufficient levels of efficiency and safety. Nevertheless, obesity drug therapy remains quite limited on its effectiveness to actually overcome the obesogenic environment. Thus, innovative unimolecular polypharmacology strategies, able to simultaneously target multiple actors involved in the obesity initiation and expansion, were developed during the last ten years opening a new promising avenue in the pharmacological management of obesity. In this review, we first describe the clinical features of obesity-associated conditions and then focus on the outcomes of currently approved drug therapies for obesity as well as new ones expecting to reach the clinic in the near future.
Collapse
Affiliation(s)
- Nathalia R V Dragano
- NeurObesity Group, Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela 15782, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 15706, Spain.
| | - Johan Fernø
- Hormone Laboratory, Haukeland University Hospital, N-5021 Bergen, Norway
| | - Carlos Diéguez
- NeurObesity Group, Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela 15782, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 15706, Spain
| | - Miguel López
- NeurObesity Group, Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela 15782, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 15706, Spain
| | - Edward Milbank
- NeurObesity Group, Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela 15782, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), 15706, Spain.
| |
Collapse
|