1
|
Braithwaite AT, Akbar N, Pezzolla D, Paget D, Krausgruber T, Bock C, Carnicer R, Choudhury RP. Multi-organ single-cell RNA sequencing in mice reveals early hyperglycemia responses that converge on fibroblast dysregulation. FASEB J 2024; 38:e23448. [PMID: 38305779 DOI: 10.1096/fj.202302003r] [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: 09/30/2023] [Revised: 12/19/2023] [Accepted: 01/10/2024] [Indexed: 02/03/2024]
Abstract
Diabetes causes a range of complications that can affect multiple organs. Hyperglycemia is an important driver of diabetes-associated complications, mediated by biological processes such as dysfunction of endothelial cells, fibrosis, and alterations in leukocyte number and function. Here, we dissected the transcriptional response of key cell types to hyperglycemia across multiple tissues using single-cell RNA sequencing (scRNA-seq) and identified conserved, as well as organ-specific, changes associated with diabetes complications. By studying an early time point of diabetes, we focus on biological processes involved in the initiation of the disease, before the later organ-specific manifestations had supervened. We used a mouse model of type 1 diabetes and performed scRNA-seq on cells isolated from the heart, kidney, liver, and spleen of streptozotocin-treated and control male mice after 8 weeks and assessed differences in cell abundance, gene expression, pathway activation, and cell signaling across organs and within organs. In response to hyperglycemia, endothelial cells, macrophages, and monocytes displayed organ-specific transcriptional responses, whereas fibroblasts showed similar responses across organs, exhibiting altered metabolic gene expression and increased myeloid-like fibroblasts. Furthermore, we found evidence of endothelial dysfunction in the kidney, and of endothelial-to-mesenchymal transition in streptozotocin-treated mouse organs. In summary, our study represents the first single-cell and multi-organ analysis of early dysfunction in type 1 diabetes-associated hyperglycemia, and our large-scale dataset (comprising 67 611 cells) will serve as a starting point, reference atlas, and resource for further investigating the events leading to early diabetic disease.
Collapse
Affiliation(s)
- Adam T Braithwaite
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Naveed Akbar
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Daniela Pezzolla
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Daan Paget
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Thomas Krausgruber
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Medical University of Vienna, Institute of Artificial Intelligence, Center for Medical Data Science, Vienna, Austria
| | - Christoph Bock
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Medical University of Vienna, Institute of Artificial Intelligence, Center for Medical Data Science, Vienna, Austria
| | - Ricardo Carnicer
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Robin P Choudhury
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| |
Collapse
|
2
|
Tahapary DL, Rizqa T, Syarira CV, Lusiani L, Rizka A, Wafa S, Wisnu W, Edi Tarigan TJ, Harbuwono DS. Differential effect of ramadan fasting on intercellular adhesion molecule-1 (ICAM-1) in diabetes mellitus and non-diabetes mellitus patients. Heliyon 2023; 9:e17273. [PMID: 37455951 PMCID: PMC10345241 DOI: 10.1016/j.heliyon.2023.e17273] [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: 09/04/2022] [Revised: 05/26/2023] [Accepted: 06/13/2023] [Indexed: 07/18/2023] Open
Abstract
Background The month of Ramadan is a holy month for Muslims. During this month, Muslims do not eat, drink, or smoke from sunrise to sunset. Patients with type 2 diabetes mellitus (T2DM) will also fast from dawn to dusk, creating a unique opportunity to study the effects of dietary changes during fasting period. One of the interesting results of Ramadan fasting is its effect on endothelial dysfunction, measured using Intercellular Adhesion Molecule-1 (ICAM-1) as a biological marker of endothelial function. Aim To determine the changes ICAM-1 levels in T2DM and non-DM patients during Ramadan fasting. Methods A retrospective cohort study was performed on 26 T2DM patients and 21 non-DM, age-matched patients (aged 19-60 years). Measurement of metabolic parameters (systolic and diastolic blood pressure, total calorie intake, and intensity of physical activity), anthropometry (body weight, body mass index (BMI) and abdominal circumference), total dietary intake, and laboratory analysis (blood glucose fasting, HbA1c, lipid profile, ICAM-1) were done at 4 weeks before (T0) and 14 days after Ramadan fasting (T1). Result The median ICAM-1 level in T2DM patients at T0 was 340.9 (193-505) ng/mL and at T1 was 312.3 (158-581) ng/mL, while the ICAM-1 level in non-DM patients at T0 was 482 (305-653) and at T1 was 398.4 (202-526) ng/mL. There was no significant difference of ICAM-1 level between study groups at both T0 and T1 (p > 0.05). Both T2DM and non-DM patients had lower ICAM-1 level following Ramadan fasting. However, only non-DM patients had significantly lower post Ramadan ICAM-1 (p = 0.008). Conclusion There was a significant decrease in ICAM-1 level in both T2DM and non-DM patients after Ramadan fasting.
Collapse
Affiliation(s)
- Dicky L. Tahapary
- Endocrine and Metabolic Division, Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Indonesia
- Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Indonesia
| | - Tasykuru Rizqa
- Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Indonesia
| | - Cut Vania Syarira
- Endocrine and Metabolic Division, Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Indonesia
| | - Lusiani Lusiani
- Cardiovascular Division, Departement of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital Geriatric Division, Indonesia
| | - Aulia Rizka
- Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Indonesia
| | - Syahidatul Wafa
- Endocrine and Metabolic Division, Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Indonesia
- Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Indonesia
| | - Wismandari Wisnu
- Endocrine and Metabolic Division, Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Indonesia
- Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Indonesia
| | - Tri Juli Edi Tarigan
- Endocrine and Metabolic Division, Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Indonesia
- Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Indonesia
| | - Dante Saksono Harbuwono
- Endocrine and Metabolic Division, Department of Internal Medicine, Dr. Cipto Mangunkusumo National Referral Hospital, Indonesia
| |
Collapse
|
3
|
New insight of metabolomics in ocular diseases in the context of 3P medicine. EPMA J 2023; 14:53-71. [PMID: 36866159 PMCID: PMC9971428 DOI: 10.1007/s13167-023-00313-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 01/09/2023] [Indexed: 02/19/2023]
Abstract
Metabolomics refers to the high-through untargeted or targeted screening of metabolites in biofluids, cells, and tissues. Metabolome reflects the functional states of cells and organs of an individual, influenced by genes, RNA, proteins, and environment. Metabolomic analyses help to understand the interaction between metabolism and phenotype and reveal biomarkers for diseases. Advanced ocular diseases can lead to vision loss and blindness, reducing patients' quality of life and aggravating socio-economic burden. Contextually, the transition from reactive medicine to the predictive, preventive, and personalized (PPPM / 3P) medicine is needed. Clinicians and researchers dedicate a lot of efforts to explore effective ways for disease prevention, biomarkers for disease prediction, and personalized treatments, by taking advantages of metabolomics. In this way, metabolomics has great clinical utility in the primary and secondary care. In this review, we summarized much progress achieved by applying metabolomics to ocular diseases and pointed out potential biomarkers and metabolic pathways involved to promote 3P medicine approach in healthcare.
Collapse
|
4
|
da Silva RSN, da Silva DS, Waclawovsky G, Schaun MI. Effects of aerobic, resistance, and combined training on endothelial function and arterial stiffness in older adults: study protocol for a systematic review and meta-analysis. Syst Rev 2022; 11:171. [PMID: 35964075 PMCID: PMC9375352 DOI: 10.1186/s13643-022-02036-w] [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: 11/22/2021] [Accepted: 07/28/2022] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Aging is an independent risk factor for cardiovascular events. It promotes vascular dysfunction which is associated with risk factors for cardiovascular diseases (CVDs). Exercise can modulate vascular function parameters, but little is known about the effects of different modalities of training (aerobic, resistance, and combined) on endothelial function and arterial stiffness in older adults. METHODS This systematic review study will include randomized controlled trials (RCTs) selected from the electronic databases MEDLINE (PubMed), Cochrane, LILACS, EMBASE, and Web of Science. We will follow the PRISMA guidelines and PICOS framework. Studies involving both male and female older adults (≥60 years old) with or without comorbidities undergoing aerobic, resistance, and/or combined training compared to a control group (no exercise) will be eligible. We will use the Cochrane Risk of Bias 2 (RoB 2) tool to evaluate the quality of individual studies and GRADE to assess the strength of evidence. Statistical analyses will be conducted with RStudio for Windows (v1.3.959) using R package meta. DISCUSSION A systematic review and meta-analysis involving data from studies of older adults would deepen our understanding of vascular adaptations to exercise training in this population. It could provide new insights into how health providers can improve patient management and prevention of cardiovascular events in older adults. SYSTEMATIC REVIEW REGISTRATION PROSPERO 42021275451.
Collapse
Affiliation(s)
- Raphael S N da Silva
- Instituto de Cardiologia do Rio Grande do Sul/Fundação Universitária de Cardiologia, Av. Princesa Isabel, 395 Santana, Porto Alegre, RS, 90620-001, Brazil
| | - Diego S da Silva
- Instituto de Cardiologia do Rio Grande do Sul/Fundação Universitária de Cardiologia, Av. Princesa Isabel, 395 Santana, Porto Alegre, RS, 90620-001, Brazil
| | - Gustavo Waclawovsky
- Instituto de Cardiologia do Rio Grande do Sul/Fundação Universitária de Cardiologia, Av. Princesa Isabel, 395 Santana, Porto Alegre, RS, 90620-001, Brazil
| | - Maximiliano I Schaun
- Instituto de Cardiologia do Rio Grande do Sul/Fundação Universitária de Cardiologia, Av. Princesa Isabel, 395 Santana, Porto Alegre, RS, 90620-001, Brazil.
| |
Collapse
|
5
|
Heitmar R, Blann AD. Oxygen saturation in retinal vessels and their correlation with endothelial microparticles in diabetes mellitus and/or cardiovascular disease. Microvasc Res 2022; 142:104336. [PMID: 35143812 DOI: 10.1016/j.mvr.2022.104336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 02/01/2022] [Accepted: 02/01/2022] [Indexed: 10/19/2022]
Abstract
PURPOSE Retinal oxygen supply is a critical requirement in ocular function, and when inadequate can lead to retinopathy. Endothelial dysfunction is a leading pathophysiology in diabetes and cardiovascular disease and may be assessed by endothelial microparticles (EMPs). We hypothesised links between retinal vessel oxygenation and EMPs, expecting these indices to be more adverse in those with both DM and CVD. METHODS Plasma from 34 patients with diabetes mellitus alone (DM), 40 with cardiovascular disease (CVD) alone and 36 with DM plus CVD was probed for EMPs by flow cytometry, but also for vascular markers soluble E-selectin (sEsel) and von Willebrand factor (vWf) (both ELISA). Retinal vessel fractal dimension, lacunarity, calibres and oxygen saturation were assessed from monochromatic and dual wavelength imaging respectively, intra-ocular pressure by was measured by rebound tonometry (I-CARE). RESULTS There was no difference in oxygenation (arterial p = 0.725, venous p = 0.264, arterio-venous difference 0.375) between the groups, but there were differences in EMPs (p = 0.049), vWf (p = 0.004) and sEsel (p = 0.032). In the entire cohort, and in diabetes alone, EMPs correlated with venous oxygenation (r = 0.24, p = 0.009 and r = 0.43, p = 0.011 respectively), while in DM + CVD, sEsel correlated with venous oxygenation (r = 0.55, p = 0.002) and with the arterial-venous difference (r = -0.63, p = 0.001). In multivariate regression analysis of vascular markers against retinal oximetry indices in the entire group, EMPs were positively linked to venous oxygenation (p = 0.037). CONCLUSIONS Despite differences in systemic markers of vascular function between DM, CVD and DM + CVD, there was no difference in arterial or venous retinal oxygenation, or their difference. However, EMPs were linked to venous oximetry, and may provide further insight into the mechanisms underlying diabetes and diabetic retinopathy.
Collapse
Affiliation(s)
- R Heitmar
- Aston University, School of Optometry, College of Health and Life Sciences, Aston Triangle, B4 7ET Birmingham, UK; Huddersfield University, Optometry and Vision Sciences, HD1 3DH Huddersfield, UK.
| | - A D Blann
- Huddersfield University, Optometry and Vision Sciences, HD1 3DH Huddersfield, UK; University of Birmingham Institute for Cardiovascular Sciences, City Hospital, Birmingham B18 7QH, UK
| |
Collapse
|
6
|
Hokama LT, Veiga ADM, Menezes MCS, Sardinha Pinto AA, de Lima TM, Ariga SKK, Barbeiro HV, Barbeiro DF, de Lucena Moreira C, Stanzani G, Brandao RA, Marchini JF, Alencar JC, Marino LO, Gomez LM, Souza HP. Endothelial injury in COVID-19 and septic patients. Microvasc Res 2021; 140:104303. [PMID: 34914941 PMCID: PMC8667352 DOI: 10.1016/j.mvr.2021.104303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 12/01/2021] [Accepted: 12/09/2021] [Indexed: 12/20/2022]
Abstract
Systemic inflammatory response, as observed in sepsis and severe COVID-19, may lead to endothelial damage. Therefore, we aim to compare the extent of endothelial injury and its relationship to inflammation in both diseases. We included patients diagnosed with sepsis (SEPSIS group, n = 21), mild COVID-19 (MILD group, n = 31), and severe COVID-19 (SEVERE group, n = 24). Clinical and routine laboratory data were obtained, circulating cytokines (INF-γ, TNF-α, and IL-10) and endothelial injury markers (E-Selectin, Tissue Factor (TF) and von Willebrand factor (vWF)) were measured. Compared to the SEPSIS group, patients with severe COVID-19 present similar clinical and laboratory data, except for lower circulating IL-10 and E-Selectin levels. Compared to the MILD group, patients in the SEVERE group showed higher levels of TNF-α, IL-10, and TF. There was no clear relationship between cytokines and endothelial injury markers among the three studied groups; however, in SEVERE COVID-19 patients, there is a positive relationship between INF-γ with TF and a negative relationship between IL-10 and vWF. In conclusion, COVID-19 and septic patients have a similar pattern of cytokines and endothelial dysfunction markers. These findings highlight the importance of endothelium dysfunction in COVID-19 and suggest that endothelium should be better evaluated as a therapeutic target for the disease.
Collapse
Affiliation(s)
- Larissa Tami Hokama
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
| | - Alicia Dudy Müller Veiga
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Maria Clara Saad Menezes
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | - Thais Martins de Lima
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Suely Kunimi Kubo Ariga
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Hermes Vieira Barbeiro
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Denise Frediani Barbeiro
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Claudia de Lucena Moreira
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Gabriela Stanzani
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Rodrigo Antonio Brandao
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Julio Flavio Marchini
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Julio Cesar Alencar
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Lucas Oliveira Marino
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Luz Marina Gomez
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | -
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Heraldo P Souza
- Emergency Medicine Department, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| |
Collapse
|
7
|
Mokgalaboni K, Nkambule BB, Ntamo Y, Ziqubu K, Nyambuya TM, Mazibuko-Mbeje SE, Gabuza KB, Chellan N, Cirilli I, Tiano L, Dludla PV. Vitamin K: A vital micronutrient with the cardioprotective potential against diabetes-associated complications. Life Sci 2021; 286:120068. [PMID: 34688697 DOI: 10.1016/j.lfs.2021.120068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/12/2021] [Accepted: 10/17/2021] [Indexed: 12/14/2022]
Abstract
Cardiovascular disease (CVD) remains the leading cause of mortality in patients with type 2 diabetes (T2D). The conventional therapies seem to offer minimal long-term cardioprotection against diabetes-related complications in patients living with T2D. There is a growing interest in understanding the therapeutic effects of food-derived bioactive compounds in protecting or managing these metabolic diseases. This includes uncovering the therapeutic potential of fat-soluble micronutrients such as vitamin K, which are abundantly found in green leafy vegetables. We searched the major electronic databases including PubMed, Web of Sciences, Scopus, Google Scholar and Science direct. The search retrieved randomized clinical trials and preclinical studies, reporting on the impact of vitamin K on CVD-related complications in T2D. The current review updates clinical evidence on the therapeutic benefits of vitamin K by attenuating CVD-risk factors such as blood lipid profiles, blood pressure, as well as markers of oxidative stress and inflammation in patients with T2D. Importantly, the summarized preclinical evidence provides a unique perspective into the pathophysiological mechanisms that could be targeted by vitamin K in the primary prevention of T2D-related complications. Lastly, this review further explores the controversies related to the cardioprotective effects of vitamin K, and also provides the basic information such as the source and bioavailability profile of this micronutrient is covered to highlight its therapeutic potential.
Collapse
Affiliation(s)
- Kabelo Mokgalaboni
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Bongani B Nkambule
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Yonela Ntamo
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
| | - Khanyisani Ziqubu
- Department of Biochemistry, North West University, Mafikeng Campus, Mmabatho 2735, South Africa
| | - Tawanda M Nyambuya
- Department of Health Sciences, Namibia University of Science and Technology, Windhoek 9000, Namibia
| | | | - Kwazikwakhe B Gabuza
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
| | - Nireshni Chellan
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa; Division of Medical Physiology, Faculty of Health Sciences, Stellenbosch University, Tygerberg 7505, South Africa
| | - Ilenia Cirilli
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona 60131, Italy; School of Pharmacy, University of Camerino, Camerino 62032, Italy
| | - Luca Tiano
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona 60131, Italy
| | - Phiwayinkosi V Dludla
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa.
| |
Collapse
|
8
|
Waclawovsky G, Boll LFC, Neto SG, Irigoyen MCC, Lehnen AM. Effects of autonomic nervous system activation on endothelial function in response to acute exercise in hypertensive individuals: study protocol for a randomized double-blind study. Trials 2021; 22:548. [PMID: 34412668 PMCID: PMC8374129 DOI: 10.1186/s13063-021-05516-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 08/06/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Arterial hypertension has a direct association with endothelial dysfunction and major cardiovascular events. There is evidence showing the benefits of aerobic exercise on flow-mediated dilation (FMD) in hypertensive individuals but little is known about the effect of autonomic nervous system (ANS) activation on FMD of the brachial artery in response to different types of exercise in this specific population. This study aims to examine the effects of ANS activation on FMD of the brachial artery in response to exercise in hypertensive individuals following a session of different types of exercise including aerobic exercise (AE), resistance exercise (RE), or combined exercise (CE). METHODS Thirty-nine hypertensive volunteers aged 35 to 55 years will be randomly assigned to two exercise sessions: AE (40 min on a cycle ergometer at 60% of HR reserve), RE (4 lower limb sets with 12 repetitions at 60% 1-RM for 40 min), or CE (RE for 20 min + AE for 20 min). Each exercise group will be randomized to receive either an α1-adrenergic blocker (doxazosin 0.05 mg/kg-1) or placebo. Ultrasound measurement of FMD is performed 10 min before and 10, 40, and 70 min after exercise. ANS activation is monitored using a Finometer and measurements are taken during 10 min before each FMD assessment. Arterial stiffness is assessed by pulse wave velocity (PWV) analysis using a Complior device. DISCUSSION We expect to demonstrate the effect of ANS activation on FMD of the brachial artery in hypertensive individuals in response to different types of exercise. This study may give some insight on how to improve exercise prescription for hypertension management. TRIAL REGISTRATION https://clinicaltrials.gov and ID "NCT04371757". Registered on May 1, 2020.
Collapse
Affiliation(s)
- Gustavo Waclawovsky
- Instituto de Cardiologia do Rio Grande do Sul/Fundação Universitária de Cardiologia, Porto Alegre, Brazil
| | | | - Salvador Gomes Neto
- Instituto de Cardiologia do Rio Grande do Sul/Fundação Universitária de Cardiologia, Porto Alegre, Brazil
| | - Maria Claudia Costa Irigoyen
- Instituto de Cardiologia do Rio Grande do Sul/Fundação Universitária de Cardiologia, Porto Alegre, Brazil
- Unidade de Hipertensão, Instituto do Coração de São Paulo, Universidade do Estado de São Paulo, São Paulo, Brazil
| | - Alexandre M Lehnen
- Instituto de Cardiologia do Rio Grande do Sul/Fundação Universitária de Cardiologia, Porto Alegre, Brazil.
| |
Collapse
|
9
|
Endothelial progenitor cells as the target for cardiovascular disease prediction, personalized prevention, and treatments: progressing beyond the state-of-the-art. EPMA J 2020; 11:629-643. [PMID: 33240451 DOI: 10.1007/s13167-020-00223-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 09/11/2020] [Indexed: 02/06/2023]
Abstract
Stimulated by the leading mortalities of cardiovascular diseases (CVDs), various types of cardiovascular biomaterials have been widely investigated in the past few decades. Although great therapeutic effects can be achieved by bare metal stents (BMS) and drug-eluting stents (DES) within months or years, the long-term complications such as late thrombosis and restenosis have limited their further applications. It is well accepted that rapid endothelialization is a promising approach to eliminate these complications. Convincing evidence has shown that endothelial progenitor cells (EPCs) could be mobilized into the damaged vascular sites systemically and achieve endothelial repair in situ, which significantly contributes to the re-endothelialization process. Therefore, how to effectively capture EPCs via specific molecules immobilized on biomaterials is an important point to achieve rapid endothelialization. Further, in the context of predictive, preventive, personalized medicine (PPPM), the abnormal number alteration of EPCs in circulating blood and certain inflammation responses can also serve as important indicators for predicting and preventing early cardiovascular disease. In this contribution, we mainly focused on the following sections: the definition and classification of EPCs, the mechanisms of EPCs in treating CVDs, the potential diagnostic role of EPCs in predicting CVDs, as well as the main strategies for cardiovascular biomaterials to capture EPCs.
Collapse
|
10
|
Yim TW, Perling D, Polcz M, Komalavilas P, Brophy C, Cheung-Flynn J. A cell permeant phosphopeptide mimetic of Niban inhibits p38 MAPK and restores endothelial function after injury. FASEB J 2020; 34:9180-9191. [PMID: 32396246 PMCID: PMC7383822 DOI: 10.1096/fj.201902745r] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 04/17/2020] [Accepted: 04/21/2020] [Indexed: 12/11/2022]
Abstract
Vascular injury leads to membrane disruption, ATP release, and endothelial dysfunction. Increases in the phosphorylation of p38 mitogen‐activated protein kinase (p38 MAPK) and decreases in the phosphorylation of Niban, a protein implicated in ER stress and apoptosis, are associated with vascular injury. A cell permeant phosphopeptide mimetic of Niban (NiPp) was generated. The effects of NiPp in restoring endothelial function were determined ex vivo using intact rat aortic tissue (RA) after pharmacological activation of p38 MAPK and also in multiple clinically relevant injury models. Anisomycin (Aniso) increased p38 MAPK phosphorylation and reduced endothelial‐dependent relaxation in RA. Treatment with NiPp prevented Ansio‐induced reduction in endothelial function and increases in p38 MAPK phosphorylation. NiPp treatment also restored endothelial function after stretch injury (subfailure stretch), treatment with acidic Normal Saline (NS), and P2X7R activation with 2′(3′)‐O‐(4‐Benzoylbenzoyl)adenosine 5′‐triphosphate (BzATP). Aged, diseased, human saphenous vein (HSV) remnants obtained from patients undergoing coronary bypass surgical procedures have impaired endothelial function. Treatment of these HSV segments with NiPp improved endothelial‐dependent relaxation. Kinome screening experiments indicated that NiPp inhibits p38 MAPK. These data demonstrate that p38 MAPK and Niban signaling have a role in endothelial function, particularly in response to injury. Niban may represent an endogenous regulator of p38 MAPK activation. The NiPp peptide may serve as an experimental tool to further elucidate p38 MAPK regulation and as a potential therapeutic for endothelial dysfunction.
Collapse
Affiliation(s)
- Tsz Wing Yim
- Department of Surgery, Vanderbilt University, Nashville, TN, USA
| | - Daniel Perling
- Department of Surgery, Vanderbilt University, Nashville, TN, USA
| | - Monica Polcz
- Department of Surgery, Vanderbilt University, Nashville, TN, USA
| | - Padmini Komalavilas
- Department of Surgery, Vanderbilt University, Nashville, TN, USA.,VA Tennessee Valley Healthcare System, Nashville, TN, USA
| | - Colleen Brophy
- Department of Surgery, Vanderbilt University, Nashville, TN, USA.,VA Tennessee Valley Healthcare System, Nashville, TN, USA
| | | |
Collapse
|
11
|
Schalkwijk CG, Stehouwer CDA. Methylglyoxal, a Highly Reactive Dicarbonyl Compound, in Diabetes, Its Vascular Complications, and Other Age-Related Diseases. Physiol Rev 2020; 100:407-461. [DOI: 10.1152/physrev.00001.2019] [Citation(s) in RCA: 176] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The formation and accumulation of methylglyoxal (MGO), a highly reactive dicarbonyl compound, has been implicated in the pathogenesis of type 2 diabetes, vascular complications of diabetes, and several other age-related chronic inflammatory diseases such as cardiovascular disease, cancer, and disorders of the central nervous system. MGO is mainly formed as a byproduct of glycolysis and, under physiological circumstances, detoxified by the glyoxalase system. MGO is the major precursor of nonenzymatic glycation of proteins and DNA, subsequently leading to the formation of advanced glycation end products (AGEs). MGO and MGO-derived AGEs can impact on organs and tissues affecting their functions and structure. In this review we summarize the formation of MGO, the detoxification of MGO by the glyoxalase system, and the biochemical pathways through which MGO is linked to the development of diabetes, vascular complications of diabetes, and other age-related diseases. Although interventions to treat MGO-associated complications are not yet available in the clinical setting, several strategies to lower MGO have been developed over the years. We will summarize several new directions to target MGO stress including glyoxalase inducers and MGO scavengers. Targeting MGO burden may provide new therapeutic applications to mitigate diseases in which MGO plays a crucial role.
Collapse
Affiliation(s)
- C. G. Schalkwijk
- CARIM School for Cardiovascular Diseases, Maastricht University Medical Centre, Maastricht, The Netherlands; and Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - C. D. A. Stehouwer
- CARIM School for Cardiovascular Diseases, Maastricht University Medical Centre, Maastricht, The Netherlands; and Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands
| |
Collapse
|
12
|
Zhao S, Murugiah K, Li N, Li X, Xu ZH, Li J, Cheng C, Mao H, Downing NS, Krumholz HM, Jiang LX. Admission Glucose and In-hospital Mortality after Acute Myocardial Infarction in Patients with or without Diabetes: A Cross-sectional Study. Chin Med J (Engl) 2017; 130:767-775. [PMID: 28345539 PMCID: PMC5381309 DOI: 10.4103/0366-6999.202733] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background: Hyperglycemia on admission has been found to elevate risk for mortality and adverse clinical events after acute myocardial infarction (AMI), but there are evidences that the relationship of blood glucose and mortality may differ between diabetic and nondiabetic patients. Prior studies in China have provided mixed results and are limited by statistical power. Here, we used data from a large, nationally representative sample of patients hospitalized with AMI in China in 2001, 2006, and 2011 to assess if admission glucose is of prognostic value in China and if this relationship differs depending on the presence or absence of diabetes. Methods: Using a nationally representative sample of patients with AMI in China in 2001, 2006, and 2011, we categorized patients according to their glucose levels at admission (< 3.9, 3.9–7.7, 7.8–11.0, and ≥11.1 mmol/L) and compared in-hospital mortality across these admission glucose categories, stratified by diabetes status. Among diabetic and nondiabetic patients, separately, we employed logistic regression to assess the differences in outcomes across admission glucose levels while adjusting for the same covariates. Results: Compared to patients with euglycemia (5.8%), patients with moderate hyperglycemia (13.1%, odds ratio [OR] = 2.44, 95% confidence interval [CI, 2.08–2.86]), severe hyperglycemia (21.5%, OR = 4.42, 95% CI [3.78–5.18]), and hypoglycemia (13.8%, OR = 2.59, 95% CI [1.68–4.00]), all had higher crude in-hospital mortality after AMI regardless of the presence of recognized diabetes mellitus. After adjustment for patients’ characteristics and clinical status, however, the relationship between admission glucose and in-hospital mortality was different for diabetic and nondiabetic patients (P for interaction = 0.045). Among diabetic patients, hypoglycemia (OR = 3.02, 95% CI [1.20–7.63]), moderate hyperglycemia (OR = 1.75, 95% CI [1.04–2.92]), and severe hyperglycemia (OR = 2.97, 95% CI [1.87–4.71]) remained associated with elevated risk for mortality, but among nondiabetic patients, only patients with moderate hyperglycemia (OR = 2.34, 95% CI [1.93–2.84]) and severe hyperglycemia (OR = 3.92, 95% CI [3.04–5.04]) were at elevated mortality risk and not hypoglycemia (OR = 1.12, 95% CI [0.60–2.08]). This relationship was consistent across different study years (P for interaction = 0.900). Conclusions: The relationship between admission glucose and in-hospital mortality differs for diabetic and nondiabetic patients. Hypoglycemia was a bad prognostic marker among diabetic patients alone. The study results could be used to guide risk assessment among AMI patients using admission glucose. Trial Registration: www.clinicaltrials.gov, NCT01624883; https://clinicaltrials.gov/ct2/show/NCT01624883
Collapse
Affiliation(s)
- Shi Zhao
- Department of Endocrinology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, China
| | - Karthik Murugiah
- Center for Outcomes Research and Evaluation, Yale School of Public Health, Yale University School of Medicine and Yale-New Haven Hospital, New Haven 06510, Connecticut, USA
| | - Na Li
- Department of Endocrinology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, China
| | - Xi Li
- National Clinical Research Center of Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Zi-Hui Xu
- Department of Endocrinology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, China
| | - Jing Li
- National Clinical Research Center of Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Chen Cheng
- Department of Endocrinology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, China
| | - Hong Mao
- Department of Endocrinology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430014, China
| | - Nicholas S Downing
- Center for Outcomes Research and Evaluation, Yale School of Public Health, Yale University School of Medicine and Yale-New Haven Hospital, New Haven 06510, Connecticut, USA
| | - Harlan M Krumholz
- Center for Outcomes Research and Evaluation, Yale School of Public Health, Yale University School of Medicine and Yale-New Haven Hospital, New Haven 06510, Connecticut, USA
| | - Li-Xin Jiang
- National Clinical Research Center of Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| |
Collapse
|
13
|
Byrkjeland R, Njerve IU, Arnesen H, Seljeflot I, Solheim S. Reduced endothelial activation after exercise is associated with improved HbA 1c in patients with type 2 diabetes and coronary artery disease. Diab Vasc Dis Res 2017; 14:94-103. [PMID: 28111980 DOI: 10.1177/1479164116679077] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE We have previously reported insignificant changes in HbA1c after exercise in patients with both type 2 diabetes and coronary artery disease. In this study, we investigated the effect of exercise on endothelial function and possible associations between changes in endothelial function and HbA1c. METHODS Patients with type 2 diabetes and coronary artery disease ( n = 137) were randomised to 12 months exercise or standard follow-up. Endothelial function was assessed by circulating biomarkers (E-selectin, intercellular adhesion molecule-1, vascular cell adhesion molecule-1, von Willebrand factor, tissue plasminogen activator antigen, asymmetric dimethylarginine and L-arginine/asymmetric dimethylarginine ratio). Differences between the randomised groups were analysed by analysis of covariance and correlations by Spearman's rho or Pearson's correlation. RESULTS No effect of exercise on endothelial function was demonstrated. The changes in HbA1c in the exercise group correlated with changes in E-selectin ( r = 0.56, p < 0.001), intercellular adhesion molecule-1 ( r = 0.27, p = 0.052), vascular cell adhesion molecule-1 ( r = 0.32, p = 0.022) and tissue plasminogen activator antigen ( r = 0.35, p = 0.011). HbA1c decreased significantly more in patients with versus without a concomitant reduction in E-selectin ( p = 0.002), intercellular adhesion molecule-1 ( p = 0.011), vascular cell adhesion molecule-1 ( p = 0.028) and tissue plasminogen activator antigen ( p = 0.009). CONCLUSION Exercise did not affect biomarkers of endothelial function in patients with both type 2 diabetes and coronary artery disease. However, changes in biomarkers of endothelial activation correlated with changes in HbA1c, and reduced endothelial activation was associated with improved HbA1c after exercise.
Collapse
Affiliation(s)
- Rune Byrkjeland
- 1 Center for Clinical Heart Research (CCHR), Department of Cardiology, Oslo University Hospital, Ullevål, Oslo, Norway
- 2 Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
- 3 Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Ida U Njerve
- 1 Center for Clinical Heart Research (CCHR), Department of Cardiology, Oslo University Hospital, Ullevål, Oslo, Norway
- 2 Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
- 3 Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Harald Arnesen
- 1 Center for Clinical Heart Research (CCHR), Department of Cardiology, Oslo University Hospital, Ullevål, Oslo, Norway
- 2 Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
- 3 Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Ingebjørg Seljeflot
- 1 Center for Clinical Heart Research (CCHR), Department of Cardiology, Oslo University Hospital, Ullevål, Oslo, Norway
- 2 Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
- 3 Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Svein Solheim
- 1 Center for Clinical Heart Research (CCHR), Department of Cardiology, Oslo University Hospital, Ullevål, Oslo, Norway
- 2 Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| |
Collapse
|
14
|
Huang S, Zou D, Peng W, Jiang X, Shao K, Xia L, Tang Y. The prediction roles of asymmetric dimethyl-arginine, adiponectin and apelin for macroangiopathy in patients with impaired glucose regulation. ANNALES D'ENDOCRINOLOGIE 2016; 77:633-640. [DOI: 10.1016/j.ando.2016.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 03/11/2016] [Accepted: 03/15/2016] [Indexed: 01/09/2023]
|
15
|
Zeng S, Chen Q, Wang XW, Hong K, Li JX, Li P, Cheng XS, Su H. Longer rewarming time in finger cooling test in association with HbA1c level in diabetics. Microvasc Res 2016; 107:72-5. [PMID: 27211911 DOI: 10.1016/j.mvr.2016.05.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 05/18/2016] [Accepted: 05/19/2016] [Indexed: 01/19/2023]
Abstract
OBJECTIVE To assess if rewarming time in finger cooling test (FCT) as an indicator of microvascular dysfunction is abnormal in patients with type 2 diabetes mellitus (T2DM). METHODS Forty-three T2DM patients and 48 healthy controls with similarly distributed baseline demographic, clinical and laboratory parameters were subjected to FCT involving 60-second index finger immersion into water at 4°C. Finger temperature was measured before FCT (baseline-T), immediately after cooling stimulus (T0), and at one-minute intervals until baseline-T recovery. Temperature decline amplitude was calculated as the difference between T0 and baseline-T, and rewarming time as time elapsed from T0 to baseline-T recovery. RESULTS T2DM patients compared with healthy controls had statistically similar baseline-T, significantly larger temperature decline amplitude, significantly lower T0, and significantly longer rewarming time. In T2DM patients, rewarming time positively correlated with T2DM duration (r=0.513, p<0.001) and glycated hemoglobin (HbA1c) level (r=0.446, p=0.003), which also were its independent predictors in multivariate regression analysis. CONCLUSIONS Patients with T2DM display abnormal FCT results suggestive of microvascular dysfunction, with T2DM duration and HbA1c level independently predicting rewarming time.
Collapse
Affiliation(s)
- Shan Zeng
- Cardiovascular Department, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Qi Chen
- Cardiovascular Department, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Xiang-Wen Wang
- Cardiovascular Department, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Kui Hong
- Cardiovascular Department, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China; Jiangxi Key Laboratory of Molecular Medicine, Jiangxi 330006, China
| | - Ju-Xiang Li
- Cardiovascular Department, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Ping Li
- Cardiovascular Department, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Xiao-Shu Cheng
- Cardiovascular Department, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Hai Su
- Cardiovascular Department, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China.
| |
Collapse
|
16
|
The role of methylglyoxal and the glyoxalase system in diabetes and other age-related diseases. Clin Sci (Lond) 2015; 128:839-61. [PMID: 25818485 DOI: 10.1042/cs20140683] [Citation(s) in RCA: 217] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The formation and accumulation of advanced glycation endproducts (AGEs) are related to diabetes and other age-related diseases. Methylglyoxal (MGO), a highly reactive dicarbonyl compound, is the major precursor in the formation of AGEs. MGO is mainly formed as a byproduct of glycolysis. Under physiological circumstances, MGO is detoxified by the glyoxalase system into D-lactate, with glyoxalase I (GLO1) as the key enzyme in the anti-glycation defence. New insights indicate that increased levels of MGO and the major MGO-derived AGE, methylglyoxal-derived hydroimidazolone 1 (MG-H1), and dysfunctioning of the glyoxalase system are linked to several age-related health problems, such as diabetes, cardiovascular disease, cancer and disorders of the central nervous system. The present review summarizes the mechanisms through which MGO is formed, its detoxification by the glyoxalase system and its effect on biochemical pathways in relation to the development of age-related diseases. Although several scavengers of MGO have been developed over the years, therapies to treat MGO-associated complications are not yet available for application in clinical practice. Small bioactive inducers of GLO1 can potentially form the basis for new treatment strategies for age-related disorders in which MGO plays a pivotal role.
Collapse
|
17
|
Stonehouse W, Brinkworth GD, Noakes M. Palmolein and olive oil consumed within a high protein test meal have similar effects on postprandial endothelial function in overweight and obese men: A randomized controlled trial. Atherosclerosis 2015; 239:178-85. [PMID: 25617858 DOI: 10.1016/j.atherosclerosis.2015.01.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 12/24/2014] [Accepted: 01/10/2015] [Indexed: 12/18/2022]
Abstract
OBJECTIVE This study assessed the postprandial effects of high fat, high protein meals containing either palmolein or olive oil on endothelial function in overweight/obese men. DESIGN 28 men (32-65 yr; 25-35 kg/m(2)) consumed, in random order 1 wk apart, isocaloric high protein, high fat meals (2791 kJ, 40 g protein (∼3 g l-arginine), 44 g fat, 21 g carbohydrate) prepared with either 40 g palmolein or 40 g olive oil after an overnight fast. The SFA:MUFA:PUFA ratio of the oils were: palmolein, 42:47:12; olive oil, 17:76:7. Brachial artery flow-mediated dilatation (FMD), circulating endothelial function markers, nitrotyrosine (oxidative stress marker), triglycerides, glucose and insulin were assessed pre-meal and hourly for 5 h. Mixed model procedures were used to analyze the data. RESULTS Meal consumption increased serum triglycerides (time effect, P < 0.001); with no meal differences (meal × time interaction, P = 0.93). Serum insulin peaked 1 h post-consumption and returned to pre-meal concentrations by 5 h with both meals (time effect, P < 0.001; meal × time effect, P = 0.68). FMD, serum intercellular adhesion molecule-1 (ICAM-1) and E-selectin did not change (meal × time effect, P > 0.4). Olive oil transiently increased plasma nitrotyrosine after 1 h compared to palmolein (meal × time interaction, P = 0.002) whereas both meals increased serum vascular cell adhesion molecule-1 (VCAM-1) after 1 h (time effect, P < 0.001; meal × time interaction, P = 0.98). Both nitrotyrosine and VCAM-1 returned to pre-meal concentrations after 2 h. CONCLUSION In the context of a high protein meal, palmolein similarly to olive oil did not affect postprandial endothelial function in overweight/obese men. TRIAL REGISTRATION Australian New Zealand Clinical Trials Registry (ANZCTR) (http://www.anzctr.org.au/default.aspx). Trial ID: ACTRN12613000136707.
Collapse
Affiliation(s)
- Welma Stonehouse
- Commonwealth Scientific Industrial Research Organisation, Food and Nutrition Flagship, Adelaide, South Australia, Australia.
| | - Grant D Brinkworth
- Commonwealth Scientific Industrial Research Organisation, Food and Nutrition Flagship, Adelaide, South Australia, Australia
| | - Manny Noakes
- Commonwealth Scientific Industrial Research Organisation, Food and Nutrition Flagship, Adelaide, South Australia, Australia
| |
Collapse
|
18
|
Abstract
Dengue is emerging as one of the most abundant vector-borne disease globally. Although the majority of infections are asymptomatic or result in only a brief systemic viral illness, a small proportion of patients develop potentially fatal complications. These severe manifestations, including a unique plasma leakage syndrome, a coagulopathy sometimes accompanied by bleeding, and organ impairment, occur relatively late in the disease course, presenting a window of opportunity to identify the group of patients likely to progress to these complications. However, as yet, differentiating this group from the thousands of milder cases seen each day during outbreaks remains challenging, and simple and inexpensive strategies are urgently needed in order to improve case management and to facilitate appropriate use of limited resources. This review will cover the current understanding of the risk factors associated with poor outcome in dengue. We focus particularly on the clinical features of the disease and on conventional investigations that are usually accessible in mid-level healthcare facilities in endemic areas, and then discuss a variety of viral, immunological and vascular biomarkers that have the potential to improve risk prediction. We conclude with a description of several novel methods of assessing vascular function and intravascular volume status non-invasively.
Collapse
|
19
|
Gould ST, Matherly EE, Smith JN, Heistad DD, Anseth KS. The role of valvular endothelial cell paracrine signaling and matrix elasticity on valvular interstitial cell activation. Biomaterials 2014; 35:3596-606. [PMID: 24462357 DOI: 10.1016/j.biomaterials.2014.01.005] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 01/07/2014] [Indexed: 12/23/2022]
Abstract
The effects of valvular endothelial cell (VlvEC) paracrine signaling on VIC phenotype and nodule formation were tested using a co-culture platform with physiologically relevant matrix elasticities and diffusion distance. 100 μm thin poly(ethylene glycol) (PEG) hydrogels of 3-27 kPa Young's moduli were fabricated in transwell inserts. VICs were cultured on the gels, as VIC phenotype is known to change significantly within this range, while VlvECs lined the underside of the membrane. Co-culture with VlvECs significantly reduced VIC activation to the myofibroblast phenotype on all gels with the largest percent decrease on the 3 kPa gels (~70%), while stiffer gels resulted in approximately 20-30% decrease. Additionally, VlvECs significantly reduced αSMA protein expression (~2 fold lower) on both 3 and 27 kPa gels, as well as the number (~2 fold lower) of nodules formed on the 27 kPa gels. Effects of VlvECs were prevented when nitric oxide (NO) release was inhibited with l-NAME, suggesting that VlvEC produced NO inhibits VIC activation. Withdrawal of l-NAME after 3, 5, and 7 days with restoration of VlvEC NO production for 2 additional days led to a partial reversal of VIC activation (~25% decrease). A potential mechanism by which VlvEC produced NO reduced VIC activation was studied by inhibiting initial and mid-stage cGMP pathway molecules. Inhibition of soluble guanylyl cyclase (sGC) with ODQ or protein kinase G (PKG) with RBrcGMP or stimulation of Rho kinase (ROCK) with LPA, abolished VlvEC effects on VIC activation. This work contributes substantially to the understanding of the valve endothelium's role in preventing VIC functions associated with aortic valve stenosis initiation and progression.
Collapse
Affiliation(s)
- Sarah T Gould
- Department of Chemical and Biological Engineering, The BioFrontiers Institute, Boulder, CO 80303, USA
| | - Emily E Matherly
- Department of Chemical and Biological Engineering, The BioFrontiers Institute, Boulder, CO 80303, USA
| | - Jennifer N Smith
- Department of Chemical and Biological Engineering, The BioFrontiers Institute, Boulder, CO 80303, USA
| | - Donald D Heistad
- Departments of Internal Medicine and Pharmacology, University of Iowa Health Care, Iowa City, IA 52242, USA
| | - Kristi S Anseth
- Department of Chemical and Biological Engineering, The BioFrontiers Institute, Boulder, CO 80303, USA; Howard Hughes Medical Institute University of Colorado, Boulder, CO 80303, USA.
| |
Collapse
|
20
|
Kastrup J. Can YKL-40 be a new inflammatory biomarker in cardiovascular disease? Immunobiology 2012; 217:483-91. [DOI: 10.1016/j.imbio.2011.04.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Revised: 02/08/2011] [Accepted: 04/21/2011] [Indexed: 12/28/2022]
|
21
|
Yeghiazaryan K, Skowasch D, Bauriedel G, Schild HH, Golubnitschaja O. Degenerative valve disease and bioprostheses: risk assessment, predictive diagnosis, personalised treatments. EPMA J 2011; 2:91-105. [PMID: 23199131 PMCID: PMC3405368 DOI: 10.1007/s13167-011-0072-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Accepted: 03/03/2011] [Indexed: 12/19/2022]
Abstract
Aortic stenosis (AS) is the most frequent valvular heart disease. Severe AS results in concentric left ventricular hypertrophy, and ultimately, the heart dilates and fails. During a long period of time patients remain asymptomatic. In this period a pathology progression should be monitored and effectively thwarted by targeted measures. A cascade of cellular and molecular events leads to chronic degeneration of aortic valves. There are some molecular attributes characteristic for the process of valvular degeneration with clear functional link between shifted cell-cycle control, calcification and tissue remodelling of aortic valves. Bioactivity of implanted bioprosthesis is assumed to result in its dysfunction. Age, gender (females), smoking, Diabetes mellitus, and high cholesterol level dramatically shorten the re-operation time. Therefore, predictive and preventive measures would be highly beneficial, in particular for young female diabetes-predisposed patients. Molecular signature of valvular degeneration is reviewed here with emphases on clinical meaning, risk-assessment, predictive diagnosis, individualised treatments.
Collapse
Affiliation(s)
- Kristina Yeghiazaryan
- Department of Radiology, Rheinische Friedrich-Wilhelms-University of Bonn, Sigmund-Freud-Str. 25, Bonn, 53105 Germany
| | - Dirk Skowasch
- Department of Internal Medicine II - Cardiology, Rheinische Friedrich-Wilhelms-University of Bonn, Bonn, Germany
| | - Gerhard Bauriedel
- Department of Internal Medicine III, Hospital Schmalkalden, Schmalkalden, Germany
| | - Hans H. Schild
- Department of Radiology, Rheinische Friedrich-Wilhelms-University of Bonn, Sigmund-Freud-Str. 25, Bonn, 53105 Germany
| | - Olga Golubnitschaja
- Department of Radiology, Rheinische Friedrich-Wilhelms-University of Bonn, Sigmund-Freud-Str. 25, Bonn, 53105 Germany
| |
Collapse
|
22
|
Abstract
Current figures: About 300 million Diabetics frequently affected by Poly-Neuropathy as secondary complication, 18 million patients with Alzheimer’s disease also diagnosed as Diabetes Type 3, neurodegenerative eye diseases with leading causes of blindness—diabetic retinopathy and estimated 67 million glaucoma patients worldwide, millions of patients with Parkinson’s disease, Multiple Sclerosis, Epilepsy, Cerebral Palsy and Dementia in the elderly—altogether dramatically affect life quality, social and economical indexes of populations around the globe. Optimistic versus Pessimistic Prognosis depends much on diagnostic, preventive and treatment approaches which healthcare will preferably adopt in the near future. Without innovation in healthcare, neurodegenerative disorders can reach more than 30% of global disease burden till 2020. In contrast, effective utilisation of advanced early/predictive diagnostics, preventive and personalised medical approaches could enable a significant portion of population to reach the 100-year age limit remaining vibrant in excellent physical and mental health as actively contributing members of society.
Collapse
Affiliation(s)
- Olga Golubnitschaja
- Department of Radiology, Rheinische Friedrich-Wilhelms-University of Bonn, Sigmund-Freud-Str. 25, 53105 Bonn, Germany ; European Association for Predictive, Preventive & Personalised Medicine, Brussels, Belgium
| |
Collapse
|
23
|
Golubnitschaja O. Time for new guidelines in advanced diabetes care: Paradigm change from delayed interventional approach to predictive, preventive & personalized medicine. EPMA J 2010; 1:3-12. [PMID: 23199036 PMCID: PMC3405298 DOI: 10.1007/s13167-010-0014-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2010] [Accepted: 02/11/2010] [Indexed: 02/07/2023]
Abstract
Global burden of diabetes mellitus clearly demonstrate inadequacy of current diabetes care measures: the costs of caring for patients with diabetes mellitus are the highest compared to other frequent pathologies. Nonetheless, for every 10 s one patient dies of diabetes-related consequences. Thus, there is urgent need for highly effective measures that would lead to reduced prevalence, better long-term outcomes and improved quality of life for diabetic patients reducing associated economic burden. Such targeted measures would require the creation of new guidelines for advanced diabetes care that would provide for regulation, for timely predictive diagnostics as well as an effective prevention and creation of individualized treatment algorithms. Effective communication among the research community healthcare providers, policy-makers, educators and organized patient groups (Federations of Diabetics) is of paramount importance and essential for (pre)diabetes care. The ultimate mission of the "European Association for Predictive, Preventive & Personalised Medicine" is to promote this process in Europe and across the globe.
Collapse
Affiliation(s)
- Olga Golubnitschaja
- “European Association for Predictive, Preventive & Personalised Medicine”, Bonn, Germany
- Department of Radiology, Rheinische Friedrich-Wilhelms-University of Bonn, Sigmund-Freud-Str. 25, 53105 Bonn, Germany
| |
Collapse
|