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Berus SM, Nowicka AB, Wieruszewska J, Niciński K, Kowalska AA, Szymborski TR, Dróżdż I, Borowiec M, Waluk J, Kamińska A. SERS Signature of SARS-CoV-2 in Saliva and Nasopharyngeal Swabs: Towards Perspective COVID-19 Point-of-Care Diagnostics. Int J Mol Sci 2023; 24:ijms24119706. [PMID: 37298658 DOI: 10.3390/ijms24119706] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 05/30/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
In this study, the intrinsic surface-enhanced Raman spectroscopy (SERS)-based approach coupled with chemometric analysis was adopted to establish the biochemical fingerprint of SARS-CoV-2 infected human fluids: saliva and nasopharyngeal swabs. The numerical methods, partial least squares discriminant analysis (PLS-DA) and support vector machine classification (SVMC), facilitated the spectroscopic identification of the viral-specific molecules, molecular changes, and distinct physiological signatures of pathetically altered fluids. Next, we developed the reliable classification model for fast identification and differentiation of negative CoV(-) and positive CoV(+) groups. The PLS-DA calibration model was described by a great statistical value-RMSEC and RMSECV below 0.3 and R2cal at the level of ~0.7 for both type of body fluids. The calculated diagnostic parameters for SVMC and PLS-DA at the stage of preparation of calibration model and classification of external samples simulating real diagnostic conditions evinced high accuracy, sensitivity, and specificity for saliva specimens. Here, we outlined the significant role of neopterin as the biomarker in the prediction of COVID-19 infection from nasopharyngeal swab. We also observed the increased content of nucleic acids of DNA/RNA and proteins such as ferritin as well as specific immunoglobulins. The developed SERS for SARS-CoV-2 approach allows: (i) fast, simple and non-invasive collection of analyzed specimens; (ii) fast response with the time of analysis below 15 min, and (iii) sensitive and reliable SERS-based screening of COVID-19 disease.
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Affiliation(s)
- Sylwia M Berus
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Ariadna B Nowicka
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Julia Wieruszewska
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Krzysztof Niciński
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Aneta A Kowalska
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Tomasz R Szymborski
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Izabela Dróżdż
- Department of Clinical Genetics, Medical University of Łódź, Pomorska 251, 92-213 Łódź, Poland
| | - Maciej Borowiec
- Department of Clinical Genetics, Medical University of Łódź, Pomorska 251, 92-213 Łódź, Poland
| | - Jacek Waluk
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
- Faculty of Mathematics and Science, Cardinal Stefan Wyszyński University, Dewajtis 5, 01-815 Warsaw, Poland
| | - Agnieszka Kamińska
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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Lubarski K, Mania A, Małecki P, Mazur-Melewska K, Figlerowicz M. Inflammatory Markers Combined With Metalloproteinase-9, Neopterin, and S100B Concentrations May Indicate the Pathogenesis of Central Nervous System Diseases in Children. J Child Neurol 2022; 37:707-716. [PMID: 35722724 DOI: 10.1177/08830738221106663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The identification of central nervous system inflammation etiology leads to adjusted therapy. We analyzed the potential inflammatory and neuro-axonal damage markers in children. Our target was to correlate the findings with a disease's course or a sequalae risk and assess their clinical usefulness. The study included 96 children with symptoms of central nervous system inflammation who underwent diagnostics. The research group involved 24 children with autoimmune disorders and 31 with neuroinfection. The control group included patients with both etiologies excluded. We analyzed the results of routine laboratory tests together with chosen serum (neopterin, interleukin [IL]-1β, IL-6) and CSF (metalloproteinase [MMP]-9, S100B protein) markers. In the whole cohort, CSF MMP-9 correlated with CSF cytosis and serum IL-6 and CRP. In the undivided neuroinflammatory group, CSF S100B correlated with serum IL-6 and IgM concentrations. CSF cytosis was associated with CSF MMP-9 and serum neopterin levels. Among the infective patients, IL-6 was linked with increased CSF MMP-9. We conclude that astroglial protein S100B, neopterin, and cytokine concentrations may enable predicting long-term consequences, whereas CSF MMP-9 concentration may reflect the actual central nervous system injury regardless of etiology.
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Affiliation(s)
- Karol Lubarski
- Department of Infectious Diseases and Child Neurology, 37807Poznan University of Medical Sciences, Poznan, Poland
| | - Anna Mania
- Department of Infectious Diseases and Child Neurology, 37807Poznan University of Medical Sciences, Poznan, Poland
| | - Paweł Małecki
- Department of Infectious Diseases and Child Neurology, 37807Poznan University of Medical Sciences, Poznan, Poland
| | - Katarzyna Mazur-Melewska
- Department of Infectious Diseases and Child Neurology, 37807Poznan University of Medical Sciences, Poznan, Poland
| | - Magdalena Figlerowicz
- Department of Infectious Diseases and Child Neurology, 37807Poznan University of Medical Sciences, Poznan, Poland
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Murray M, Coughlan MT, Gibbon A, Kumar V, Marques FZ, Selby-Pham S, Snelson M, Tsyganov K, Williamson G, Woodruff TM, Wu T, Bennett LE. Reduced Growth, Altered Gut Microbiome and Metabolite Profile, and Increased Chronic Kidney Disease Risk in Young Pigs Consuming a Diet Containing Highly Resistant Protein. Front Nutr 2022; 9:816749. [PMID: 35399679 PMCID: PMC8988180 DOI: 10.3389/fnut.2022.816749] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 02/24/2022] [Indexed: 01/04/2023] Open
Abstract
High-heat processed foods contain proteins that are partially resistant to enzymatic digestion and pass through to the colon. The fermentation of resistant proteins by gut microbes produces products that may contribute to chronic disease risk. This pilot study examined the effects of a resistant protein diet on growth, fecal microbiome, protein fermentation metabolites, and the biomarkers of health status in pigs as a model of human digestion and metabolism. Weanling pigs were fed with standard or resistant protein diets for 4 weeks. The resistant protein, approximately half as digestible as the standard protein, was designed to enter the colon for microbial fermentation. Fecal and blood samples were collected to assess the microbiome and circulating metabolites and biomarkers. The resistant protein diet group consumed less feed and grew to ~50% of the body mass of the standard diet group. The diets had unique effects on the fecal microbiome, as demonstrated by clustering in the principal coordinate analysis. There were 121 taxa that were significantly different between groups (adjusted-p < 0.05). Compared with control, plasma tri-methylamine-N-oxide, homocysteine, neopterin, and tyrosine were increased and plasma acetic acid was lowered following the resistant protein diet (all p < 0.05). Compared with control, estimated glomerular filtration rate (p < 0.01) and liver function marker aspartate aminotransferase (p < 0.05) were also lower following the resistant protein diet. A resistant protein diet shifted the composition of the fecal microbiome. The microbial fermentation of resistant protein affected the levels of circulating metabolites and the biomarkers of health status toward a profile indicative of increased inflammation and the risk of chronic kidney disease.
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Affiliation(s)
- Margaret Murray
- School of Chemistry, Monash University, Clayton, VIC, Australia
- Department of Nutrition, Dietetics and Food, Monash University, Notting Hill, VIC, Australia
| | - Melinda T. Coughlan
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, Australia
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Anne Gibbon
- Monash Animal Research Platform, Monash University, Churchill, VIC, Australia
| | - Vinod Kumar
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
| | - Francine Z. Marques
- Hypertension Research Laboratory, School of Biological Sciences, Monash University, Clayton, VIC, Australia
- Heart Failure Research Group, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | | | - Matthew Snelson
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Kirill Tsyganov
- Hypertension Research Laboratory, School of Biological Sciences, Monash University, Clayton, VIC, Australia
- Bioinformatics Platform, Monash University, Clayton, VIC, Australia
| | - Gary Williamson
- Department of Nutrition, Dietetics and Food, Monash University, Notting Hill, VIC, Australia
| | - Trent M. Woodruff
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, QLD, Australia
| | - Tong Wu
- School of Chemistry, Monash University, Clayton, VIC, Australia
| | - Louise E. Bennett
- School of Chemistry, Monash University, Clayton, VIC, Australia
- *Correspondence: Louise E. Bennett
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Zheng Y, Ji B, Chen S, Zhou R, Ni R. The impact of uremic toxins on Alzheimer's disease. Curr Alzheimer Res 2022; 19:104-118. [PMID: 35048807 DOI: 10.2174/1567205019666220120113305] [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: 08/18/2021] [Revised: 11/27/2021] [Accepted: 12/14/2021] [Indexed: 11/22/2022]
Abstract
Alzheimer's disease (AD) is the most common type of dementia, pathologically characterized by accumulation of senile plaques and neurofibrillary tangles. Chronic kidney disease (CKD) is highly prevalent in elderly population closely associated with occurrence of dementia. Recent epidemiological and experimental studies suggest a potential association of CKD with AD. Both diseases share a panel of identical risk factors, such as type 2 diabetes; and hypertension. However, the relationship between CKD and AD is unclear. Lower clearance of a panel of uremic toxin including cystatin-C, guanidine, and adiponectin due to CKD is implied to contribute to AD pathogenesis. In this review we summarize the current evidence from epidemiological, experimental and clinical studies on the potential contribution of uremic toxins to AD pathogenesis. We describe outstanding questions and propose an outlook on the link between uremic toxins and AD.
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Affiliation(s)
- Yuqi Zheng
- Department of Nephrology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Bin Ji
- Department of Radiopharmacy and Molecular Imaging, School of Pharmacy, Fudan University, Shanghai, China
| | - Sijun Chen
- Department of Nephrology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Rong Zhou
- Department of Nephrology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ruiqing Ni
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
- Institute for Biomedical Engineering, University of Zurich & ETH Zurich, Zurich, Switzerland
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Ruslie RH, Darmadi D, Siregar GA. Vascular Endothelial Growth Factor (VEGF) and Neopterin Levels in Children with Steroid-sensitive and Steroid-resistant Nephrotic Syndrome. Med Arch 2021; 75:133-137. [PMID: 34219873 PMCID: PMC8228650 DOI: 10.5455/medarh.2021.75.133-137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 04/20/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The most common glomerular disease in children is nephrotic syndrome. Steroid-resistant nephrotic syndrome tends to have a worse disease course, which bears a significant risk of chronic kidney disease in children. OBJECTIVE To compare VEGF and neopterin levels between children with steroid-sensitive nephrotic syndrome (SSNS), steroid-resistant nephrotic syndrome (SRNS), and also healthy (control) children. METHODS This cross-sectional study was conducted at H. Adam Malik General Hospital, Indonesia from January to December 2018. There were 160 children aged 1 to 8 years with confirmed nephrotic syndrome and without end-stage renal disease and systemic diseases, divided into SSNS, SRNS, and control groups. Data regarding age, gender, urine albumin creatinine ratio (UACR), serum albumin, total cholesterol, urea, creatinine, VEGF, and neopterin levels were collected. A p-value of less than 0.05 is considered statistically significant. RESULTS There were no differences between groups in gender (p = 0.269) and age (p = 0.375), but there was significant difference of UACR, albumin level, total cholesterol level, and VEGF level between groups, (all p< 0.001). There was a moderate positive correlation between VEGF level and UACR (r(158) = 0.439, p< 0.001) and a moderate negative correlation between neopterin level and albumin level (r(158)= -0.312, p = 0.005). CONCLUSION There were no differences in serum VEGF and neopterin levels between steroid-sensitive and steroid-resistant nephrotic syndrome groups. Serum VEGF level was positively correlated with UACR while serum neopterin level was negatively correlated with serum albumin level.
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Affiliation(s)
- Riska Habriel Ruslie
- Department of Child Health, Faculty of Medicine, Universitas Prima Indonesia, Medan, Indonesia
| | - Darmadi Darmadi
- Department of Internal Medicine, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
| | - Gontar Alamsyah Siregar
- Department of Internal Medicine, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
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Hailemichael W, Kiros M, Akelew Y, Getu S, Andualem H. Neopterin: A Promising Candidate Biomarker for Severe COVID-19. J Inflamm Res 2021; 14:245-251. [PMID: 33564258 PMCID: PMC7866915 DOI: 10.2147/jir.s290264] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 12/24/2020] [Indexed: 01/08/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection has rapidly spread across the world since its first emergence in China in late 2019. It is a major public health concern with no effective treatct 3ments. The immunopathology of SARS-CoV-2 is associated with an excessive inflammatory response. Macrophage activation syndrome (MAS) is also associated with the severity of the disease in SARS-CoV-2-infected patients. Neopterin is a macrophage activation marker produced by monocytes and macrophages upon activation by interferon-gamma (IFN-γ). Neopterin is a well-established marker in a variety of diseases, and recent evidence indicates that it could be helpful in early prediction of the severity of COVID-19 disease and serve as a prognostic marker. Here, we outline the role of macrophage activation syndrome in the pathogenesis of SARS-CoV-2 and suggest that neopterin could be used as a biomarker for progression of COVID-19.
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Affiliation(s)
- Wasihun Hailemichael
- Immunology and Molecular Biology, Medical Laboratory Science, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
| | - Mulugeta Kiros
- Medical Microbiology, Medical Laboratory Science, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
| | - Yibeltal Akelew
- Immunology and Molecular Biology, Medical Laboratory Sciences, College of Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| | - Sisay Getu
- Hematology and Immuno-Hematology, Medical Laboratory Science, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
| | - Henok Andualem
- Immunology and Molecular Biology, Medical Laboratory Science, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
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Watanabe T. Neopterin derivatives - a novel therapeutic target rather than biomarker for atherosclerosis and related diseases. VASA 2020; 50:165-173. [PMID: 32924886 DOI: 10.1024/0301-1526/a000903] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This review provides an updated overview of the emerging roles of neopterin derivatives in atherosclerosis. Neopterin, a metabolite of guanosine triphosphate, is produced by interferon-γ-activated macrophages and is expressed at high levels in atheromatous plaques within the human carotid and coronary arteries as well as in the aorta. Plasma concentrations of neopterin are higher in patients with carotid, cerebral, and coronary artery diseases as well as aortic aneurysm. The concentration of neopterin is positively correlated with the severity of coronary artery disease. However, a prospective cohort study showed that neopterin contributes to protection against plaque formation in carotid arteries in patients with atherosclerosis. Moreover, using both in vitro and in vivo experiments, a recent study has shown the atheroprotective effects of neopterin. Neopterin suppresses the expression of monocyte chemotactic protein-1, vascular cell adhesion molecule-1, and intercellular adhesion molecule-1 in endothelial cells, and thereby suppresses the adhesion of monocytes to endothelial cells. It also suppresses the inflammatory phenotype of monocyte-derived macrophages. In addition, neopterin suppresses oxidized low-density lipoprotein-induced foam cell formation in macrophages and the migration and proliferation of vascular smooth muscle cells. Neopterin injection into apolipoprotein E-deficient (Apoe-/-) mice suppresses the development of atherosclerotic lesions. A neopterin derivative tetrahydroneopterin (BH4), also known as a cofactor for nitric oxide (NO) synthases, suppresses atherosclerosis and vascular injury-induced neointimal hyperplasia in Apoe-/- mice. BH4 administration improves endothelial dysfunction in patients with coronary artery disease. These findings suggest that neopterin production may increase to counteract the progression of atherosclerosis, as neopterin contributes to atheroprotection. Otherwise, the increased neopterin levels in atherosclerosis may reflect a compensatory mechanism associated with inducible NO synthase upregulation in macrophages to supply BH4 for high output NO production caused by decreased endothelial NO synthase in atherosclerosis. Therefore, neopterin derivatives are a novel therapeutic target for atherosclerosis and related diseases.
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Affiliation(s)
- Takuya Watanabe
- Department of Internal Medicine, Ushioda General Hospital/Clinic, Yokohama, Japan
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Matiollo C, Rateke ECDM, de Oliveira KG, Turnes BL, da Silva TE, Maccali C, Latini AS, Narciso-Schiavon JL, Schiavon LL. Elevated neopterin levels are associated with acute-on-chronic liver failure and mortality in patients with liver cirrhosis. Dig Liver Dis 2020; 52:753-760. [PMID: 32434738 DOI: 10.1016/j.dld.2020.03.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 03/09/2020] [Accepted: 03/26/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Macrophage activation plays a central role in hepatic and systemic inflammation and is involved in the pathogenesis of acute-on-chronic liver failure (ACLF). AIMS This study aimed to investigate neopterin levels in patients admitted for acute decompensation (AD) of cirrhosis, evaluating its relationship with ACLF and prognosis. METHODS This prospective cohort study included 205 adult subjects hospitalized for AD of cirrhosis. Twenty-one healthy subjects and 89 patients with stable cirrhosis were evaluated as controls. RESULTS Circulating neopterin was higher in AD as compared to stable cirrhosis and healthy controls (p<0.001). ACLF was independently associated with higher neopterin levels (OR 1.015, 95% CI 1.002-1.028, p = 0.025). In the multivariate Cox regression analysis, neopterin levels (HR = 1.002, IC 95% 1.000-1.004, p = 0.041), Child-Pugh class C, and ACLF were predictors of 30-day survival. Among patients with ACLF, the Kaplan-Meier survival probability was 71.4% in those with neopterin levels < 25 nmol/L and 31.0% if neopterin ≥ 25 nmol/L (p<0.001). CONCLUSIONS Higher circulating neopterin was associated with ACLF in patients hospitalized for AD of cirrhosis. Neopterin levels were also independently predictors of high short-term mortality, especially among patients with ACLF, and could represent a useful biomarker of macrophage activation in clinical practice.
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Affiliation(s)
- Camila Matiollo
- Laboratório de Análises Clínicas, Hospital Universitário, Universidade Federal de Santa Catarina, Brazil
| | | | - Karina Ghisoni de Oliveira
- Laboratório de Bioenergética e Estresse Oxidativo - LABOX, Universidade Federal de Santa Catarina, Brazil
| | - Bruna Lenfers Turnes
- Laboratório de Bioenergética e Estresse Oxidativo - LABOX, Universidade Federal de Santa Catarina, Brazil
| | - Telma Erotides da Silva
- Serviço de Gastroenterologia, Hospital Universitário, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Claudia Maccali
- Serviço de Gastroenterologia, Hospital Universitário, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Alexandra Susana Latini
- Laboratório de Bioenergética e Estresse Oxidativo - LABOX, Universidade Federal de Santa Catarina, Brazil
| | - Janaína Luz Narciso-Schiavon
- Serviço de Gastroenterologia, Hospital Universitário, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - L L Schiavon
- Serviço de Gastroenterologia, Hospital Universitário, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil.
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Premeaux TA, Javandel S, Hosaka KRJ, Greene M, Therrien N, Allen IE, Corley MJ, Valcour VG, Ndhlovu LC. Associations Between Plasma Immunomodulatory and Inflammatory Mediators With VACS Index Scores Among Older HIV-Infected Adults on Antiretroviral Therapy. Front Immunol 2020; 11:1321. [PMID: 32695109 PMCID: PMC7338430 DOI: 10.3389/fimmu.2020.01321] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 05/26/2020] [Indexed: 12/13/2022] Open
Abstract
The prevalence of age-related comorbidities is increased in people living with HIV, even in those well-controlled on combination antiretroviral therapy (ART). Persistent immune activation and inflammation may play pivotal roles in the pathogenesis; however, the burden of morbidities in the older HIV infected population may be exacerbated and driven by distinct mechanisms. In a cross sectional study of 45 HIV-infected participants 60 years or older, we examined the relationships between 14 immunomodulatory and inflammatory factors and the Veterans Aging Cohort Study (VACS) Index, a metric of multimorbidity and mortality comprised of age, CD4 count, hemoglobin, Fibrosis-4 [FIB-4], and estimated glomerular filtration rate [eGFR], by linear regression analysis. All participants were virally suppressed (<50 HIV RNA copies/mL), on ART, and primarily Caucasian (86.7%), and male (91.1%). Plasma levels of monocyte/macrophage-associated (neopterin, IP-10, sCD163, sCD14, and MCP-1) and glycan-binding immunomodulatory factors (galectin (Gal)-1, Gal-3, and Gal-9) were assessed, as well as inflammatory biomarkers previously linked to the VACS Index (i.e., CRP, cystatin C, TNF-α, TNFRI, IL-6, and D-dimer) for comparison. In regression analysis, higher VACS index scores were associated with higher levels of neopterin, cystatin C, TNFRI, and Gal-9 (all p < 0.05), potentially driven by correlations found with individual VACS components, including age, CD4 count, FIB-4, and eGFR. Gal-9, cystatin C, and TNFRI directly correlated with the extent of multimorbidity. Multiple correlations among markers were observed, suggesting an interplay of overlapping, but distinct, pathways. Collectively, in addition to cystatin C and TNFRI, both galectin-9 and neopterin, independently emerged as novel fluid markers of the VACS Index and burden of comorbidity and may further guide in understanding pathogenic mechanisms of age-related disorders in older HIV-infected individuals on suppressive ART.
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Affiliation(s)
- Thomas A Premeaux
- Department of Tropical Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, United States
| | - Shireen Javandel
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, San Francisco, CA, United States
| | - Kalei R J Hosaka
- Department of Tropical Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, United States
| | - Meredith Greene
- Division of Geriatric Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Nicholas Therrien
- Department of Tropical Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, United States
| | - Isabel E Allen
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, United States
| | - Michael J Corley
- Division of Infectious Diseases, Department of Medicine, Weill Cornell Medicine, New York, NY, United States
| | - Victor G Valcour
- Department of Neurology, Memory and Aging Center, University of California, San Francisco, San Francisco, CA, United States.,Division of Geriatric Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Lishomwa C Ndhlovu
- Department of Tropical Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, United States.,Division of Infectious Diseases, Department of Medicine, Weill Cornell Medicine, New York, NY, United States
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10
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Navolan DB, Stoian DL, Bohiltea RE, Crainiceanu Z, Craina ML, Cretu O, Timar B, Vladareanu R, Terness P, BūRGER F, Nemescu D. Comparison of early pregnancy serum concentration of neopterin, neopterin/creatinine ratio, C-reactive protein, and chitotriosidase, in pregnant women with birth at term and spontaneous preterm birth. Exp Ther Med 2020; 20:2449-2454. [PMID: 32765732 PMCID: PMC7401568 DOI: 10.3892/etm.2020.8784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 05/13/2020] [Indexed: 12/14/2022] Open
Abstract
Inflammatory mechanisms are involved in achieving a normal pregnancy and in the development of certain pregnancy complications. These changes are more intense in pregnant women that suffer of pregnancy complications, such as spontaneous preterm birth (SPB). This study compared the course of inflammatory markers (IM) [neopterin (Neo), neopterin/creatinine ratio (Neo/Cre), C-reactive protein (CRP), and chitotriosidase (Chito)] serum concentration in the early pregnancy of women with birth at term (BT) and preterm birth (PB). IM concentration was measured in 90 sera sampled from 45 pregnancies with BT and 30 sera from 15 pregnancies with PB. Two sera were sampled from each pregnant woman: one in the first trimester and another one in the second trimester. Early pregnancy IM concentration showed a direct correlation with gestational age: Neo (rho=0.262, P=0.004), Neo/Cre (rho=0.372, P<0.001), CRP (rho=0.187, P=0.041), and Chito (rho=0.039, P=0.66). The correlation was present in both categories of patients with BT and PB. Patients with PB before 34 week of pregnancy (wp) and 32 wp showed higher Neo and Neo/Cre concentration than BT patients. A significant association was found between the risk of PB before 34 wp, PB before 32 wp, and Neo concentration (PB <34 wp: odds ratio (OR) =5.13, P=0.035) (PB <32 wp: OR=8.2, P=0.020) and, respectively, Neo/Cre concentration (PB <34 wp: OR=5.29, P=0.015) (PB <32 wp: OR=9.25, P=0.006). No association between CRP or Chito and PB age was found. IM concentration correlates with the gestational age at the time of blood sampling. Increased Neo and Neo/Cre concentration are associated with PB. Further studies are needed to evaluate the usefulness of these markers in clinical practice.
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Affiliation(s)
- Dan Bogdan Navolan
- Department of Obstetrics and Gynecology, 'Victor Babes' University of Medicine and Pharmacy, 300041 Timisoara, Romania.,Help Prevent Foundation For Promotion of Prevention and Health, 320036 Resiţa
| | - Dana Liana Stoian
- Department of Endocrinology, 'Victor Babes' University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Roxana Elena Bohiltea
- Department of Obstetrics and Gynecology, 'Carol Davila' University of Medicine and Pharmacy, 030167 Bucharest, Romania
| | - Zorin Crainiceanu
- Department of Surgery, 'Victor Babes' University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Marius Lucian Craina
- Department of Obstetrics and Gynecology, 'Victor Babes' University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Octavian Cretu
- Department of Surgery, 'Victor Babes' University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Bogdan Timar
- Department of Medical Informatics, 'Victor Babes' University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Radu Vladareanu
- Department of Obstetrics and Gynecology, 'Carol Davila' University of Medicine and Pharmacy, 030167 Bucharest, Romania
| | - Peter Terness
- 'Otto Meyerhof' Center, Institute of Immunology, 'Ruperto Carola' University of Heidelberg, D-69120 Heidelberg, Germany
| | - Friederike BūRGER
- Metabolic Laboratory, Department of General Pediatrics, University Children's Hospital Heidelberg, D-69120 Heidelberg, Germany
| | - Dragos Nemescu
- Department of Obstetrics and Gynecology, 'Grigore T. Popa' University of Medicine and Pharmacy, 700115 Iasi, Romania
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KARAKAWA S, NISHIMOTO R, HARADA M, ARASHIDA N, NAKAYAMA A. Simultaneous Analysis of Tryptophan and Its Metabolites in Human Plasma Using Liquid Chromatography–Electrospray Ionization Tandem Mass Spectrometry. CHROMATOGRAPHY 2019. [DOI: 10.15583/jpchrom.2019.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Clinical Significance of Increased Serum Neopterin in Chronic Kidney Failure as a Biomarker of Cell-mediated Immunity. J Med Biochem 2019; 38:1-5. [PMID: 30820177 PMCID: PMC6298458 DOI: 10.2478/jomb-2018-0019] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 04/28/2018] [Indexed: 12/25/2022] Open
Abstract
Background Neopterin is a pyrazino-pyrimidine compound which is used as a marker of cell-mediated immunity in a variety of diseases. It is known that neopterin levels increase in diseases where interferon-gamma (IFN-g) stimulation is present, and also as a result of deficiencies in renal function, given that the primary means of elimination of neopterin is through the kidneys. In this study, we aimed to investigate the role of increased neopterin levels as a prognostic biomarker in patients with impaired renal function. Methods A total of 90 individuals including 63 patients with chronic kidney failure (CKF) and 27 healthy volunteers were included in the study. Serum neopterin concentrations were measured using the enzyme-linked immunosorbent assay. A Mann-Whitney U test and a Pearson Correlation Test were used in the statistical analysis, with a p value of <0.05 being considered statistically significant. Results The mean age was 52.21±0.16 years in the patient group and 56.55±0.32 years in the control group. In the CKF patients, serum neopterin levels increased to a significantly greater degree than in the control group (p<0.001), while no statistically significant correlation was identified between serum neopterin levels and age (p>0.05). Conclusions A significant increase was found in the serum neopterin levels in the CKF patients, due to both the triggering of the disease and the reduction of neopterin elimination.
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Jian W, Li L, Wei XM, Guan JH, Yang GL, Gui C. Serum angiopoietin-2 concentrations of post-PCI are correlated with the parameters of renal function in patients with coronary artery disease. Medicine (Baltimore) 2019; 98:e13960. [PMID: 30608432 PMCID: PMC6344115 DOI: 10.1097/md.0000000000013960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Patients with coronary artery disease (CAD) frequently have comorbidity of chronic kidney disease (CKD). Their renal function may deteriorate because of the use of contrast agent after percutaneous coronary intervention (PCI). Angiopoietin-2 (Ang-2), which is highly expressed in the site of angiogenesis, plays an important role in both CAD and CKD. This study aimed to investigate the relation of serum Ang-2 concentrations with the renal function after PCI.This study enrolled 57 patients with CAD undergoing PCI. Blood samples for Ang-2 were collected in the first morning after admission and within 24 to 48 h after PCI. The parameters of renal function (serum creatinine, cystatin C and eGFR) were tested on the first day after admission and within 72 h after PCI.Overall, serum Ang-2 levels of post-PCI were significantly lower than those of pre-PCI [median, 1733 (IQR, 1100-2568) vs median, 2523 (IQR, 1702-3640) pg/mL; P < .001]. However, in patients with CKD (eGFR < 60 mL/min/1.73 m), there was no significant difference between serum Ang-2 levels of post-PCI and those of pre-PCI [median, 2851 (IQR, 1720-4286) vs. median, 2492 (IQR, 1434-4994) pg/mL; P = .925]. In addition, serum Ang-2 levels of post-PCI, but not pre-PCI, were significantly correlated with the post-PCI parameters of renal function.Serum Ang-2 concentrations of post-PCI are closely related to renal function in patients with CAD. It may have potential to be the early biomarker of contrast-induced nephropathy in the future.
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Affiliation(s)
- Wen Jian
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University
- Guangxi Key Laboratory Base of Precision Medicine in Cardio-Cerebrovascular Diseases Control and Prevention
- Guangxi Clinical Research Center for Cardio-Cerebrovascular Diseases, Nanning
| | - Lang Li
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University
- Guangxi Key Laboratory Base of Precision Medicine in Cardio-Cerebrovascular Diseases Control and Prevention
- Guangxi Clinical Research Center for Cardio-Cerebrovascular Diseases, Nanning
| | - Xiao-Min Wei
- Department of Cardiology, Gongren Hospital of Wuzhou, Wuzhou
| | - Jia-Hui Guan
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Guo-Liang Yang
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University
- Guangxi Key Laboratory Base of Precision Medicine in Cardio-Cerebrovascular Diseases Control and Prevention
- Guangxi Clinical Research Center for Cardio-Cerebrovascular Diseases, Nanning
| | - Chun Gui
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University
- Guangxi Key Laboratory Base of Precision Medicine in Cardio-Cerebrovascular Diseases Control and Prevention
- Guangxi Clinical Research Center for Cardio-Cerebrovascular Diseases, Nanning
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Musiał K, Zwolińska D. New markers of cell migration and inflammation in children with chronic kidney disease. Biomarkers 2018; 24:295-302. [PMID: 30516070 DOI: 10.1080/1354750x.2018.1556341] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Context: Chronic kidney disease (CKD) is characterized by immunocompetent cell migration and inflammation. Monocyte chemoattractant protein (MCP)-1 and macrophage colony-stimulating factor (MCSF) stimulate monocyte migration and transition into macrophages with subsequent release of neopterin. Objective: The aim of the study was to analyze these parameters in children with various stages of CKD. Material and methods: The study group consisted of 41 CKD children, 19 patients on haemodialysis (HD), 22 children on automated peritoneal dialysis (APD) and 23 controls. Serum concentrations of MCP-1, MCSF and neopterin were assessed by ELISA. Correlations to matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) were analyzed. Results: MCP-1, MCSF and neopterin were significantly elevated in all patients versus controls and the highest values concerned HD children. A single HD session lessened the concentrations of all parameters, yet they rose back before the next HD session. All markers correlated with MMPs and TIMPs in different combinations. Conclusions: Systemic inflammation and cell migration are triggered by CKD and additionally aggravated by chronic dialysis, with the more evident negative impact of HD than APD. Discrepancies in MCP1, MCSF and neopterin serum concentrations suggest they may serve as new markers of cellular and inflammatory responses in children with CKD.
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Affiliation(s)
- Kinga Musiał
- a Department of Pediatric Nephrology , Wrocław Medical University , Wrocław , Poland
| | - Danuta Zwolińska
- a Department of Pediatric Nephrology , Wrocław Medical University , Wrocław , Poland
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Role of neopterin as a biochemical marker for peripheral neuropathy in pediatric patients with type 1 diabetes: Relation to nerve conduction studies. Int Immunopharmacol 2018; 59:68-75. [PMID: 29627577 DOI: 10.1016/j.intimp.2018.03.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 03/17/2018] [Accepted: 03/27/2018] [Indexed: 12/21/2022]
Abstract
BACKGROUND Neopterin, a marker of inflammation and cellular immune response, is elevated in conditions of T-cell or macrophages activation. Diabetic peripheral neuropathy (DPN) is associated with inflammatory/immune processes and therefore, we hypothesized that neopterin could be used as a marker of neuropathy in type 1 diabetes mellitus (T1DM). AIM To measure neopterin levels in children and adolescents with T1DM and assess its possible relation to DPN and nerve conduction studies (NCS). METHODS Sixty patients aged ≤18 years and >5 years disease duration were subjected to neurological assessment by neuropathy disability score (NDS) and NCS for median, ulnar, posterior tibial and common peroneal nerves. Mean fasting blood glucose, lipid profile, HbA1c, high sensitivity C-reactive protein (hs-CRP) and serum neopterin levels were assessed. Patients were compared with 30 age- and sex-matched healthy controls. RESULTS The frequency of DPN according to NDS was 40 (66.7%) patients out of 60 while NCS confirmed that only 30 of those 40 patients had this complication (i.e. 50% out of the total studied patients). Neopterin levels were significantly higher in patients with DPN than those without (median [IQR], 53.5 [35-60] nmol/L versus 17 [13-32] nmol/L) and healthy controls (5.0 [3.2-7.0] nmol/L) (p < 0.001). Significant positive correlations were found between neopterin levels and HbA1c (r = 0.560, p = 0.005), serum creatinine (r = 0.376, p = 0.003), total cholesterol (r = 0.405, p = 0.026) and hs-CRP (r = 0.425, p = 0.012) among patients with DPN. Neopterin levels were positively correlated to motor latency of tibial and common peroneal nerves as well as motor and sensory latencies of median and ulnar nerves. Logistic regression analysis revealed that neopterin was a significant independent variable related to DPN (Odds ratio, 2.976). Neopterin cutoff value 32 nmol/L could differentiate patients with and without DPN with 100% sensitivity and 96.7% specificity. CONCLUSIONS Neopterin could be used as an early reliable serum biomarker for DPN in pediatric patients with T1DM.
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New Markers of Inflammation and Tubular Damage in Children with Chronic Kidney Disease. DISEASE MARKERS 2017; 2017:9389432. [PMID: 28808355 PMCID: PMC5541796 DOI: 10.1155/2017/9389432] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 06/06/2017] [Accepted: 06/15/2017] [Indexed: 12/28/2022]
Abstract
Introduction and Aims Monocyte chemoattractant protein- (MCP-) 1, macrophage colony-stimulating factor (MCSF), and neopterin are connected with monocyte migration and transition into macrophages, leading to fibrosis and tubular damage in the course of CKD. The aim of the study was to analyze the applicability of urinary fractional excretion (FE) of MCP1, MCSF, and neopterin, as markers of inflammation and tubular damage, in children with CKD. Methods The study group consisted of 61 children with CKD stages 1–5 and 23 age-matched controls. The serum and urine concentrations of MCP1, MCSF, and neopterin were assessed by ELISA and then the fractional excretion (FE) was calculated. Results FE MCSF and neopterin values exceeded 1% already in controls. FE MCSF rose significantly since CKD stages 1-2, FE neopterin since CKD stages 3–5. FE MCP1 was below 1% in healthy controls and in CKD stages 1-2, then increased significantly in CKD stages 3–5. Conclusions The FE MCP-1 values show that inflammation precedes the tubular dysfunction. FE MCSF and FE neopterin may be considered new markers of the renal parenchyma progressive damage. Fractional excretion may become a useful tool in the assessment of inflammation and tubular damage in children with CKD.
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Justa S, Minz RW, Anand S, Minz M. Serum Neopterin Levels Among Hepatitis C-Positive Living-Donor Renal Transplant Recipients. Biomark Insights 2015; 10:1-6. [PMID: 26052227 PMCID: PMC4451816 DOI: 10.4137/bmi.s26156] [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: 03/17/2015] [Revised: 04/22/2015] [Accepted: 04/26/2015] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND The role of neopterin as a marker of cell-mediated immunity for immunological monitoring after transplantation is of great potential interest. Neopterin levels among hepatitis C virus (HCV)-positive recipients of living-donor renal transplantation (LDRT) have not been previously described. METHODS Twenty-two HCV-positive (group I) and 10 HCV-negative (group II) recipients of LDRT were serially monitored for serum neopterin levels by enzyme-linked immunosorbent assay (ELISA). Group I patients were monitored thrice, ie, before transplantation, day 10, and 6 months post transplantation, while group II patients were monitored twice (day 10 and 6 months post transplantation). Peripheral blood T-lymphocyte subsets (CD3, CD4, CD8, CD4+CD25+, CD16+56) and Th1/Th2 cytokines were monitored concomitantly by flow cytometry. RESULTS Ten days post transplantation, there was a significant increase in neopterin and neopterin/creatnine levels among group I patients. There was a positive correlation between activated T-lymphocyte (CD4+CD25+) and neopterin early post transplantation (day 10). Th2 cytokines IL-10 and IL-5 showed a positive correlation with neopterin levels on day 10 and 6 months post transplantation, respectively. Neopterin levels did not show association with either HCV viral load or allograft rejection among our study cohort. CONCLUSION Increased monocyte/macrophage activation with elevated serum neopterin was detected among group I patients on day 10 post transplantation, but it could not predict rejection. It appears that IL-10 either from a regulatory or nonregulatory source helps in the maintenance of stable graft early post transplantation. Further, it would be of interest to assess the role of neopterin in chronic allograft nephropathy and long-term graft outcome.
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Affiliation(s)
- Shivali Justa
- Department of Immunopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ranjana W Minz
- Department of Immunopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Shashi Anand
- Department of Immunopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Mukut Minz
- Department of Renal Transplant Surgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Zhang M, Wen J, Wang X, Xiao C. High‑dose folic acid improves endothelial function by increasing tetrahydrobiopterin and decreasing homocysteine levels. Mol Med Rep 2014; 10:1609-13. [PMID: 24939255 DOI: 10.3892/mmr.2014.2332] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 04/08/2014] [Indexed: 11/05/2022] Open
Abstract
The aim of this study was to investigate the effect of folic acid (FA) on tetrahydrobiopterin (BH4), neopterin, nitric oxide (NO) and homocysteine (Hcy) levels in endothelial cells. Human umbilical vein endothelial cells (HUVECs) were cultured in vitro in the presence or absence of Hcy. The effect of various doses of FA on Hcy, BH4, neopterin and NO concentrations in HUVECs was then assessed. In the 5 and 10 nmol/l FA treatment groups, FA was found to significantly increase the levels of BH4 (10.56±3.86 and 11.23±2.1919 pmol/g vs 6.32+2.87 nmol/g; P<0.05 vs. control) and NO production (37.86±12.34 nmol/l, 38.45±11.23 nmol/l vs 26.21±9.24 nmol/l; P<0.001 vs. paired Hcy group), but reduce the levels of Hcy (132.87±29.67 and 140.87±26.76 nmol/l vs. 165.23±30.56 nmol/l; P<0.05 vs. Hcy group). No significant differences were observed in neopterin levels among the different groups of HUVECs. In conclusion, high doses of FA may be capable of protecting endothelial cells through reducing levels of Hcy and increasing BH4 and NO production.
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Affiliation(s)
- Min Zhang
- Department of Cardiovascular Medicine, The Third People's Hospital, Guangzhou Medical University, Huizhou, Guangdong 516002, P.R. China
| | - Jinlin Wen
- Department of Cardiovascular Medicine, The Third People's Hospital, Guangzhou Medical University, Huizhou, Guangdong 516002, P.R. China
| | - Xiangjiang Wang
- Department of Cardiovascular Medicine, The Third People's Hospital, Guangzhou Medical University, Huizhou, Guangdong 516002, P.R. China
| | - Chun Xiao
- Department of Cardiovascular Medicine, The Third People's Hospital, Guangzhou Medical University, Huizhou, Guangdong 516002, P.R. China
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Wojciechowska C, Wodniecki J, Wojnicz R, Romuk E, Jacheć W, Tomasik A, Skrzep-Poloczek B, Spinczyk B, Nowalany-Kozielska E. Neopterin and beta-2 microglobulin relations to immunity and inflammatory status in nonischemic dilated cardiomyopathy patients. Mediators Inflamm 2014; 2014:585067. [PMID: 25214716 PMCID: PMC4151370 DOI: 10.1155/2014/585067] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 07/29/2014] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND The aim of the study was to assess the relationships among serum neopterin (NPT), β2-microglobulin (β2-M) levels, clinical status, and endomyocardial biopsy results of dilated cardiomyopathy patients (DCM). METHODS Serum NPT and β-2 M were determined in 172 nonischaemic DCM patients who underwent right ventricular endomyocardial biopsy and 30 healthy subjects (ELISA test). The cryostat biopsy specimens were assessed using histology, immunohistology, and immunochemistry methods (HLA ABC, HLA DR expression, CD3 + lymphocytes, and macrophages counts). RESULTS The strong increase of HLA ABC or HLA DR expression was detected in 27.2% patients-group A-being low in 72.8% patients-group B. Neopterin level was increased in patients in group A compared to healthy controls 8.11 (4.50-12.57) versus 4.99 (2.66-8.28) nmol/L (P < 0.05). β-2 microglobulin level was higher in DCM groups A (2.60 (1.71-3.58)) and B (2.52 (1.51-3.72)) than in the control group 1.75 (1.28-1.96) mg/L, P < 0.001. Neopterin correlated positively with the number of macrophages in biopsy specimens (P < 0.05) acute phase proteins: C-reactive proteins (P < 0.05); fibrinogen (P < 0.01); and NYHA functional class (P < 0.05) and negatively with left ventricular ejection fraction (P < 0.05). CONCLUSIONS Neopterin but not β-2 microglobulin concentration reflected immune response in biopsy specimens. Neopterin correlated with acute phase proteins and stage of heart failure and may indicate a general immune and inflammatory activation in heart failure.
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Affiliation(s)
- Celina Wojciechowska
- Second Department of Cardiology, School of Medicine with the Division of Dentistry, Medical University of Silesia,
Ulica M.C. Skłodowskiej 10, 41-800 Zabrze, Poland
| | - Jan Wodniecki
- Second Department of Cardiology, School of Medicine with the Division of Dentistry, Medical University of Silesia,
Ulica M.C. Skłodowskiej 10, 41-800 Zabrze, Poland
| | - Romuald Wojnicz
- Department of Histology and Embryology, School of Medicine with the Division of Dentistry, Medical University of Silesia, 41-800 Zabrze, Poland
| | - Ewa Romuk
- Department of Biochemistry, School of Medicine with the Division of Dentistry, Medical University of Silesia, 41-800 Zabrze, Poland
| | - Wojciech Jacheć
- Second Department of Cardiology, School of Medicine with the Division of Dentistry, Medical University of Silesia,
Ulica M.C. Skłodowskiej 10, 41-800 Zabrze, Poland
| | - Andrzej Tomasik
- Second Department of Cardiology, School of Medicine with the Division of Dentistry, Medical University of Silesia,
Ulica M.C. Skłodowskiej 10, 41-800 Zabrze, Poland
| | - Bronisława Skrzep-Poloczek
- Department of Biochemistry, School of Medicine with the Division of Dentistry, Medical University of Silesia, 41-800 Zabrze, Poland
| | - Beata Spinczyk
- Department of Histology and Embryology, School of Medicine with the Division of Dentistry, Medical University of Silesia, 41-800 Zabrze, Poland
| | - Ewa Nowalany-Kozielska
- Second Department of Cardiology, School of Medicine with the Division of Dentistry, Medical University of Silesia,
Ulica M.C. Skłodowskiej 10, 41-800 Zabrze, Poland
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Kell DB, Goodacre R. Metabolomics and systems pharmacology: why and how to model the human metabolic network for drug discovery. Drug Discov Today 2014; 19:171-82. [PMID: 23892182 PMCID: PMC3989035 DOI: 10.1016/j.drudis.2013.07.014] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 07/03/2013] [Accepted: 07/16/2013] [Indexed: 02/06/2023]
Abstract
Metabolism represents the 'sharp end' of systems biology, because changes in metabolite concentrations are necessarily amplified relative to changes in the transcriptome, proteome and enzyme activities, which can be modulated by drugs. To understand such behaviour, we therefore need (and increasingly have) reliable consensus (community) models of the human metabolic network that include the important transporters. Small molecule 'drug' transporters are in fact metabolite transporters, because drugs bear structural similarities to metabolites known from the network reconstructions and from measurements of the metabolome. Recon2 represents the present state-of-the-art human metabolic network reconstruction; it can predict inter alia: (i) the effects of inborn errors of metabolism; (ii) which metabolites are exometabolites, and (iii) how metabolism varies between tissues and cellular compartments. However, even these qualitative network models are not yet complete. As our understanding improves so do we recognise more clearly the need for a systems (poly)pharmacology.
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Affiliation(s)
- Douglas B Kell
- School of Chemistry and Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, UK.
| | - Royston Goodacre
- School of Chemistry and Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, UK
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Pihlstrøm H, Mjøen G, März W, Olav Dahle D, Abedini S, Holme I, Fellström B, Jardine A, Pilz S, Holdaaas H. Neopterin is associated with cardiovascular events and all-cause mortality in renal transplant patients. Clin Transplant 2013; 28:111-9. [PMID: 24372612 PMCID: PMC4204514 DOI: 10.1111/ctr.12285] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2013] [Indexed: 01/28/2023]
Abstract
BACKGROUND Inflammatory markers show significant associations with cardiovascular events and all-cause mortality after kidney transplantation. Neopterin, reflecting interferon-γ-release, may better reflect the proinflammatory state of recipients than less specific markers. METHODS Kidney transplant recipients in the Assessment of LEscol in Renal Transplant (ALERT) trial were examined and investigated for an association between serum neopterin and subsequent clinical events: graft loss, major cardiovascular events (MACE) and all-cause mortality. RESULTS After adjustment for established and emerging risk factors neopterin expressed as neopterin-to-creatinine ratio was significantly associated with MACE (p = 0.009) and all-cause mortality (p = 0.002). Endpoints were more frequent with increasing quartiles of neopterin-to-creatinine ratio. The incidence rates of MACE and all-cause mortality were significantly increased in the upper quartiles compared with the first. CONCLUSIONS This long-term prospective analysis in stable kidney allograft recipients suggests that neopterin is associated with long-term risk of cardiovascular events and all-cause mortality, but not renal outcomes.
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Affiliation(s)
- Hege Pihlstrøm
- Department of Organ Transplantation, Oslo University Hospital Rikshospitalet, Oslo, Norway
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Apostolakis S, Spandidos D. Chemokines and atherosclerosis: focus on the CX3CL1/CX3CR1 pathway. Acta Pharmacol Sin 2013; 34:1251-6. [PMID: 23974513 PMCID: PMC4002164 DOI: 10.1038/aps.2013.92] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Accepted: 06/24/2013] [Indexed: 12/29/2022] Open
Abstract
Atherosclerosis is currently considered an inflammatory disease. Much attention has been focused on the potential role of inflammatory mediators as prognostic/diagnostic markers or therapeutic targets of atherosclerotic cardiovascular disease. CX3CL1 (or fractalkine) is a structurally and functionally unique chemokine with a well documented role in atherosclerosis. In its membrane bound form it promotes the firm adhesion of rolling leucocytes onto the vessel wall, while in its soluble form it serves as a potent chemoattractant for CX3CR1-expressing cells. Additionally, CX3CL1 exerts cytotoxic effects on the endothelium as well as anti-apoptotic and proliferative effects on vascular cells, affecting the context and stability of the atherosclerotic plaque. Studies on animal models have shown that the blockade of the CX3CL1/CX3CR1 pathway ameliorates the severity of atherosclerosis, while genetic epidemiology has confirmed that a genetically-defined less active CX3CL1/CX3CR1 pathway is associated with a reduced risk of atherosclerotic disease in humans. Although several studies support an important pathogenic role of CX3CL1/CX3CR1 in atherogenesis and plaque destabilization, this does not necessarily suggest that this pathway is a suitable therapeutic target or that CX3CL1 can serve as a prognostic/diagnostic biomarker. Further studies on the CX3CL1/CX3CR1 chemokine pathway are clearly warranted to justify the clinical relevance of its role in atherosclerosis.
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Affiliation(s)
- Stavros Apostolakis
- Department of Clinical Virology, Faculty of Medicine, University of Crete, Heraklion, Crete, Greece
| | - Demetrios Spandidos
- Department of Clinical Virology, Faculty of Medicine, University of Crete, Heraklion, Crete, Greece
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