1
|
Gerszi D, Orosz G, Török M, Szalay B, Karvaly G, Orosz L, Hetthéssy J, Vásárhelyi B, Török O, Horváth EM, Várbíró S. Risk Estimation of Gestational Diabetes Mellitus in the First Trimester. J Clin Endocrinol Metab 2023; 108:e1214-e1223. [PMID: 37247379 PMCID: PMC10584002 DOI: 10.1210/clinem/dgad301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 05/05/2023] [Accepted: 05/24/2023] [Indexed: 05/31/2023]
Abstract
CONTEXT There is no early, first-trimester risk estimation available to predict later (gestational week 24-28) gestational diabetes mellitus (GDM); however, it would be beneficial to start an early treatment to prevent the development of complications. OBJECTIVE We aimed to identify early, first-trimester prediction markers for GDM. METHODS The present case-control study is based on the study cohort of a Hungarian biobank containing biological samples and follow-up data from 2545 pregnant women. Oxidative-nitrative stress-related parameters, steroid hormone, and metabolite levels were measured in the serum/plasma samples collected at the end of the first trimester from 55 randomly selected control and 55 women who developed GDM later. RESULTS Pregnant women who developed GDM later during the pregnancy were older and had higher body mass index. The following parameters showed higher concentration in their serum/plasma samples: fructosamine, total antioxidant capacity, testosterone, cortisone, 21-deoxycortisol; soluble urokinase plasminogen activator receptor, dehydroepiandrosterone sulfate, dihydrotestosterone, cortisol, and 11-deoxycorticosterone levels were lower. Analyzing these variables using a forward stepwise multivariate logistic regression model, we established a GDM prediction model with a specificity of 96.6% and sensitivity of 97.5% (included variables: fructosamine, cortisol, cortisone, 11-deoxycorticosterone, SuPAR). CONCLUSION Based on these measurements, we accurately predict the development of later-onset GDM (24th-28th weeks of pregnancy). Early risk estimation provides the opportunity for targeted prevention and the timely treatment of GDM. Prevention and slowing the progression of GDM result in a lower lifelong metabolic risk for both mother and offspring.
Collapse
Affiliation(s)
- Dóra Gerszi
- Department of Obstetrics and Gynecology, Faculty of Medicine, Semmelweis University, Budapest H-1082, Hungary
- Department of Physiology, Faculty of Medicine, Semmelweis University, Budapest H-1094, Hungary
| | - Gergő Orosz
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Debrecen Medical and Health Science Centre, Debrecen H-4032, Hungary
| | - Marianna Török
- Department of Obstetrics and Gynecology, Faculty of Medicine, Semmelweis University, Budapest H-1082, Hungary
- Workgroup for Science Management, Doctoral School, Semmelweis University, Budapest H-1085, Hungary
| | - Balázs Szalay
- Department of Laboratory Medicine, Semmelweis University, Budapest H-1083, Hungary
| | - Gellért Karvaly
- Laboratory of Mass Spectrometry and Separation Technology, Department of Laboratory Medicine, Semmelweis University, Budapest H-1089, Hungary
| | - László Orosz
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Debrecen Medical and Health Science Centre, Debrecen H-4032, Hungary
| | - Judit Hetthéssy
- Workgroup for Science Management, Doctoral School, Semmelweis University, Budapest H-1085, Hungary
| | - Barna Vásárhelyi
- Department of Laboratory Medicine, Semmelweis University, Budapest H-1083, Hungary
| | - Olga Török
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Debrecen Medical and Health Science Centre, Debrecen H-4032, Hungary
| | - Eszter M Horváth
- Department of Physiology, Faculty of Medicine, Semmelweis University, Budapest H-1094, Hungary
| | - Szabolcs Várbíró
- Department of Obstetrics and Gynecology, Faculty of Medicine, Semmelweis University, Budapest H-1082, Hungary
- Workgroup for Science Management, Doctoral School, Semmelweis University, Budapest H-1085, Hungary
| |
Collapse
|
2
|
Bereczki D, Nagy B, Kerényi A, Nagy G, Szarka K, Kristóf K, Szalay B, Vásárhelyi B, Bhattoa HP, Kappelmayer J. EDTA-Induced Pseudothrombocytopenia up to 9 Months after Initial COVID-19 Infection Associated with Persistent Anti-SARS-CoV-2 IgM/IgG Seropositivity. Lab Med 2022; 53:206-209. [PMID: 34415328 PMCID: PMC10656942 DOI: 10.1093/labmed/lmab050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Platelets have a role in vascular complications of COVID-19-related viral coagulopathy. Although immune-induced thrombocytopenia has been described mostly in moderate-to-severe COVID-19, the prognostic role of platelet count in COVID-19 is still controversial. Pseudothrombocytopenia has been reported to represent COVID-19-associated coagulopathy in critical illness, and transient EDTA-dependent pseudothrombocytopenia lasting less than 3 weeks was described in a patient with severe acute COVID-19 pneumonia. In our case study, EDTA-induced pseudothrombocytopenia was still present at 9 months after an initial SARS-CoV-2 virus infection in an apparently recovered 60 year old man. The persistence of antinucleocapside and antispike antibodies 9 months after the initial infection suggests that EDTA-induced pseudothrombocytopenia may be related to anti-SARS-CoV-2 IgG or IgM antibodies. We should acknowledge the possibility that pseudothrombocytopenia may also appear in some patients after seroconversion after the launch of large-scale vaccination programs.
Collapse
Affiliation(s)
- Dániel Bereczki
- Department of Neurology, Semmelweis University, Budapest, Hungary
- MTA-SE Neuroepidemiological Research Group ELKH, Budapest, Hungary
- EANcore COVID-19 Task Force, European Academy of Neurology, Vienna, Austria
| | - Béla Nagy
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Adrienne Kerényi
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | - Gábor Nagy
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Krisztina Szarka
- Department of Medical Microbiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Katalin Kristóf
- Department of Laboratory Medicine, Semmelweis University, Budapest, Hungary
| | - Balázs Szalay
- Department of Laboratory Medicine, Semmelweis University, Budapest, Hungary
| | - Barna Vásárhelyi
- Department of Laboratory Medicine, Semmelweis University, Budapest, Hungary
| | - Harjit P Bhattoa
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - János Kappelmayer
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| |
Collapse
|
3
|
Burcsár S, Toldi G, Kovács L, Szalay B, Vásárhelyi B, Balog A. Urine soluble urokinase plasminogen activator receptor as a potential biomarker of lupus nephritis activity. Biomarkers 2021; 26:443-449. [PMID: 33825610 DOI: 10.1080/1354750x.2021.1910343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
There is a lack of non-invasive biomarkers to identify lupus nephritis (LN). Soluble urokinase plasminogen activator receptor (suPAR) is a sensitive biomarker of ongoing inflammation and a potential marker of podocyte dysfunction. The aim of this study was to assess urine and plasma suPAR in LN. 14 systemic lupus erythematosus (SLE) patients with newly diagnosed LN, 8 active SLE patients (SLEDAI >8) without LN and 31 healthy individuals were enrolled. Urine and plasma samples were taken before the initiation of LN induction therapy, and monthly thereafter. Global and renal disease activity were defined using the SLEDAI-2K and the SLEDAI-2K renal domain score, respectively. suPAR concentrations were measured with the suPARnostic Flex ELISA assay. Urine and plasma suPAR levels were elevated in SLE patients with active LN compared with resolved LN and healthy controls. Urine suPAR levels were comparable to healthy controls in active SLE without LN. Urine and plasma suPAR levels were higher before than after the initiation of LN induction therapy. Prospective follow-up measurements also suggested that urine suPAR levels raised again in patients with a relapse of LN according to SLEDAI-2K renal domain score, whereas plasma suPAR levels did not correlate with renal disease activity. Urine suPAR is a promising LN activity biomarker, given its isolated elevation in urine in active LN and pronounced decrease with LN improvement.
Collapse
Affiliation(s)
- Szilárd Burcsár
- Department of Rheumatology and Immunology, University of Szeged, Szeged, Hungary
| | - Gergely Toldi
- Department of Laboratory Medicine, Semmelweis University, Budapest, Hungary
| | - László Kovács
- Department of Rheumatology and Immunology, University of Szeged, Szeged, Hungary
| | - Balázs Szalay
- Department of Laboratory Medicine, Semmelweis University, Budapest, Hungary
| | - Barna Vásárhelyi
- Department of Laboratory Medicine, Semmelweis University, Budapest, Hungary
| | - Attila Balog
- Department of Rheumatology and Immunology, University of Szeged, Szeged, Hungary
| |
Collapse
|
4
|
Tóth Z, Szalay B, Gyarmati B, Jalal DA, Vásárhelyi B, Szabó T. Vitamin D Deficiency has no Impact on PSA Reference Ranges in a General University Hospital - A Retrospective Analysis. EJIFCC 2020; 31:225-230. [PMID: 33061877 PMCID: PMC7545131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Vitamin D deficiency has been linked to a higher risk of prostate cancer. We tested the hypothesis that vitamin D levels would have an impact on prostate specific antigen (PSA) levels. METHODS From our laboratory database we selected 5136 male patients with simultaneously determined vitamin D and PSA levels. Subgroups of several age cohorts with different vitamin D levels were created and PSA 95 percentile values were assessed. The independent effect of vitamin D levels and age on PSA levels was determined with logistic regression. RESULTS PSA levels increased with age, while no difference was identified in PSA levels in different vitamin D subgroups. CONCLUSION Vitamin D levels do not have an effect on PSA. Hence, there is no need to adjust PSA reference ranges and threshold values to vitamin D levels during the process of decision making.
Collapse
Affiliation(s)
- Zoltán Tóth
- Department of Urology, Uzsoki Hospital, Budapest, Hungary
| | - Balázs Szalay
- Department of Laboratory Medicine, Semmelweis University, Budapest, Hungary
| | - Béla Gyarmati
- Department of Gyneocology and Obstetrics, Uzsoki Hospital, Budapest, Hungary
| | - Dlovan Ali Jalal
- Department of Laboratory Medicine, Semmelweis University, Budapest, Hungary
| | - Barna Vásárhelyi
- Department of Laboratory Medicine, Semmelweis University, Budapest, Hungary,Hungarian Academy of Sciences, Budapest, Hungary,Corresponding author: Barna Vásárhelyi Department of Laboratory Medicine Semmelweis University Budapest Hungary E-mail:
| | - Tamás Szabó
- Department of Laboratory Medicine, Semmelweis University, Budapest, Hungary
| |
Collapse
|
5
|
Jo I, Szalay B, Végh Z, Kürti Z, Olajos F, Vásárhelyi B. High titers of anti-infliximab antibody do not interfere with Abbott immunoassays. Clin Chem Lab Med 2017; 55:e276-e278. [DOI: 10.1515/cclm-2017-0155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 04/10/2017] [Indexed: 11/15/2022]
|
6
|
Ivancsó I, Bohács A, Szalay B, Toldi G, Szilasi ME, Müller V, Losonczy G, Rigó J, Vásárhelyi B, Tamási L. Circulating periostin level in asthmatic pregnancy. J Asthma 2016; 53:900-6. [PMID: 27340880 DOI: 10.3109/02770903.2016.1165697] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Asthma often complicates pregnancy and represents a risk for complications. Periostin is considered as a biomarker of asthma; however, as it also plays a role in normal gestation, pregnancy may influence circulating periostin levels. This is the first study assessing periostin in asthmatic pregnancy. METHODS Plasma periostin levels were investigated in asthma (asthmatic non-pregnant, ANP; N = 19) and asthmatic pregnancy (AP; N = 14), compared to healthy non-pregnant controls (HNP; N = 12) and healthy pregnant women (HP; N = 17). The relationship between periostin levels and asthma control determinants was also evaluated. The diagnostic efficacy of periostin to detect uncontrolled asthma was analyzed using ROC analysis. RESULTS Plasma periostin levels were similar in the HNP and ANP (55.68 [37.21-67.20] vs. 45.25 [32.67-64.55], p > 0.05), and elevated in the HP (68.81 [57.34-98.84] ng/mL, p = 0.02 vs. HNP) and AP groups (54.02 [44.30-74.94] ng/mL, p = 0.0346 vs. ANP). Periostin levels of the two pregnant groups were similar (p > 0.05). In AP women periostin correlated negatively with FEV1 (r = -0.5516) and positively with Raw (r = 0.5535; both p < 0.05). CONCLUSIONS Pregnancy itself increases circulating periostin levels and this elevation is detectable in asthmatic pregnancy as well. Although periostin correlates with lung function in asthmatic pregnancy, periostin as a biomarker has to be handled with caution in pregnant patients due to the influence of pregnancy on its plasma level.
Collapse
Affiliation(s)
- István Ivancsó
- a Department of Pulmonology , Semmelweis University , Budapest , Hungary
| | - Anikó Bohács
- a Department of Pulmonology , Semmelweis University , Budapest , Hungary
| | - Balázs Szalay
- b Department of Laboratory Medicine , Semmelweis University , Budapest , Hungary
| | - Gergely Toldi
- c 1st Department of Obstetrics and Gynecology , Semmelweis University , Budapest , Hungary
| | | | - Veronika Müller
- a Department of Pulmonology , Semmelweis University , Budapest , Hungary
| | - György Losonczy
- a Department of Pulmonology , Semmelweis University , Budapest , Hungary
| | - János Rigó
- c 1st Department of Obstetrics and Gynecology , Semmelweis University , Budapest , Hungary
| | - Barna Vásárhelyi
- b Department of Laboratory Medicine , Semmelweis University , Budapest , Hungary.,e Research Group of Pediatrics and Nephrology, Hungarian Academy of Sciences , Budapest , Hungary
| | - Lilla Tamási
- a Department of Pulmonology , Semmelweis University , Budapest , Hungary
| |
Collapse
|
7
|
Kádár G, Czibula Ά, Szalay B, Nagy K, Pusztai A, Balog A, Monostori Έ, Vásárhelyi B, Szekanecz Z, Kovács L. AB0312 Predictors of Disease Course after The Discontinuation of Biologic Therapy in Rheumatoid Arthritis Patients with Long-Term Remission. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
8
|
Gecse KB, Lovász BD, Farkas K, Banai J, Bene L, Gasztonyi B, Golovics PA, Kristóf T, Lakatos L, Csontos ÁA, Juhász M, Nagy F, Palatka K, Papp M, Patai Á, Lakner L, Salamon Á, Szamosi T, Szepes Z, Tóth GT, Vincze Á, Szalay B, Molnár T, Lakatos PL. Efficacy and Safety of the Biosimilar Infliximab CT-P13 Treatment in Inflammatory Bowel Diseases: A Prospective, Multicentre, Nationwide Cohort. J Crohns Colitis 2016; 10:133-40. [PMID: 26661272 DOI: 10.1093/ecco-jcc/jjv220] [Citation(s) in RCA: 144] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 10/19/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Biosimilar infliximab CT-P13 is approved for all indications of the originator product in Europe. Prospective data on its efficacy, safety, and immunogenicity in inflammatory bowel diseases are lacking. METHODS A prospective, nationwide, multicentre, observational cohort was designed to examine the efficacy, safety, and immunogenicity of CT-P13 infliximab biosimilar in the induction treatment of Crohn's disease [CD] and ulcerative colitis [UC]. Demographic data were collected and a harmonised monitoring strategy was applied. Early clinical remission, response, and early biochemical response were evaluated at Week 14, steroid-free clinical remission was evaluated at Week 30. Therapeutic drug level was monitored using a conventional enzyme-linked immunosorbent assay. RESULTS In all, 210 consecutive inflammatory bowel disease [126 CD and 84 UC] patients were included in the present cohort. At Week 14, 81.4% of CD and 77.6% of UC patients showed clinical response and 53.6% of CD and 58.6% of UC patients were in clinical remission. Clinical remission rates at Week 14 were significantly higher in CD and UC patients who were infliximab naïve, compared with those with previous exposure to the originator compound [p < 0.05]. Until Week 30, adverse events were experienced in 17.1% of all patients. Infusion reactions and infectious adverse events occurred in 6.6% and 5.7% of all patients, respectively. CONCLUSIONS This prospective multicentre cohort shows that CT-P13 is safe and effective in the induction of clinical remission and response in both CD and UC. Patients with previous infliximab exposure exhibited decreased response rates and were more likely to develop allergic reactions.
Collapse
Affiliation(s)
- Krisztina B Gecse
- First Department of Internal Medicine, Semmelweis University, Budapest, Hungary
| | - Barbara D Lovász
- First Department of Internal Medicine, Semmelweis University, Budapest, Hungary
| | - Klaudia Farkas
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | - János Banai
- Medical Centre, Hungarian Defence Forces, Budapest, Hungary
| | - László Bene
- First Department of Medicine, Peterfy Hospital, Budapest, Hungary
| | - Beáta Gasztonyi
- Second Department of Medicine, Zala County Hospital, Zalaegerszeg, Hungary
| | - Petra Anna Golovics
- First Department of Internal Medicine, Semmelweis University, Budapest, Hungary
| | - Tünde Kristóf
- Second Department of Medicine, B-A-Z County and University Teaching Hospital, Miskolc, Hungary
| | - László Lakatos
- Department of Internal Medicine, Csolnoky Ferenc Regional Hospital, Veszprém, Hungary
| | - Ágnes Anna Csontos
- Second Department of Internal Medicine, Semmelweis University, Budapest, Hungary
| | - Márk Juhász
- Second Department of Internal Medicine, Semmelweis University, Budapest, Hungary
| | - Ferenc Nagy
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | - Károly Palatka
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Hungary
| | - Mária Papp
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Hungary
| | - Árpád Patai
- Department of Medicine and Gastroenterology, Markusovszky Hospital, Szombathely, Hungary
| | - Lilla Lakner
- Department of Medicine and Gastroenterology, Markusovszky Hospital, Szombathely, Hungary
| | - Ágnes Salamon
- Department of Gastroenterology, Tolna County Teaching Hospital, Szekszárd, Hungary
| | - Tamás Szamosi
- Medical Centre, Hungarian Defence Forces, Budapest, Hungary
| | - Zoltán Szepes
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | - Gábor T Tóth
- Department of Gastroenterology, Janos Hospital, Budapest, Hungary
| | - Áron Vincze
- First Department of Medicine, University of Pécs, Pécs, Hungary
| | - Balázs Szalay
- Department of Laboratory Medicine, Semmelweis University, Budapest, Hungary
| | - Tamás Molnár
- First Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | - Péter L Lakatos
- First Department of Internal Medicine, Semmelweis University, Budapest, Hungary
| |
Collapse
|
9
|
Odler B, Ivancsó I, Somogyi V, Benke K, Tamási L, Gálffy G, Szalay B, Müller V. Vitamin D deficiency is associated with impaired disease control in asthma-COPD overlap syndrome patients. Int J Chron Obstruct Pulmon Dis 2015; 10:2017-25. [PMID: 26451099 PMCID: PMC4590340 DOI: 10.2147/copd.s91654] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Introduction The association between vitamin D and clinical parameters in obstructive lung diseases (OLDs), including COPD and bronchial asthma, was previously investigated. As asthma–COPD overlap syndrome (ACOS) is a new clinical entity, the prevalence of vitamin D levels in ACOS is unknown. Aim Our aim was to assess the levels of circulating vitamin D (25-hydroxyvitamin D [25(OH)D]) in different OLDs, including ACOS patients, and its correlation with clinical parameters. Methods A total of 106 men and women (control, n=21; asthma, n=44; COPD, n=21; and ACOS, n=20) were involved in the study. All patients underwent detailed clinical examinations; disease control and severity was assessed by disease-specific questionnaires (COPD assessment test, asthma control test, and modified Medical Research Council); furthermore, 25(OH)D levels were measured in all patients. Results The 25(OH)D level was significantly lower in ACOS and COPD groups compared to asthma group (16.86±1.79 ng/mL and 14.27±1.88 ng/mL vs 25.66±1.91 ng/mL). A positive correlation was found between 25(OH)D level and forced expiratory volume in 1 second (r=0.4433; P<0.0001), forced vital capacity (FVC) (r=0.3741; P=0.0004), forced expiratory flow between 25% and 75% of FVC (r=0.4179; P<0.0001), and peak expiratory flow (r=0.4846; P<0.0001) in OLD patient groups. Asthma control test total scores and the 25(OH)D level showed a positive correlation in the ACOS (r=0.4761; P=0.0339) but not in the asthma group. Higher COPD assessment test total scores correlated with decreased 25(OH)D in ACOS (r=−0.4446; P=0.0495); however, this was not observed in the COPD group. Conclusion Vitamin D deficiency is present in ACOS patients and circulating 25(OH)D level may affect disease control and severity.
Collapse
Affiliation(s)
- Balázs Odler
- Department of Pulmonology, Semmelweis University, Budapest, Hungary
| | - István Ivancsó
- Department of Pulmonology, Semmelweis University, Budapest, Hungary
| | - Vivien Somogyi
- Department of Pulmonology, Semmelweis University, Budapest, Hungary
| | - Kálmán Benke
- Heart and Vascular Centre, Semmelweis University, Budapest, Hungary
| | - Lilla Tamási
- Department of Pulmonology, Semmelweis University, Budapest, Hungary
| | - Gabriella Gálffy
- Department of Pulmonology, Semmelweis University, Budapest, Hungary
| | - Balázs Szalay
- Department of Laboratory Medicine, Semmelweis University, Budapest, Hungary
| | - Veronika Müller
- Department of Pulmonology, Semmelweis University, Budapest, Hungary
| |
Collapse
|
10
|
Balog A, Legány N, Toldi G, Distler J, Beyer C, Szalay B, Kovács L, Vásárhelyi B. AB0196 Increased Plasma Soluble Urokinase Plasminogen Activator Receptor Level in Systemic Sclerosis with Impaired Microvascular Abnormalities and Fibrosis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.1731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
11
|
Legány N, Toldi G, Distler JH, Beyer C, Szalay B, Kovács L, Vásárhelyi B, Balog A. Increased plasma soluble urokinase plasminogen activator receptor levels in systemic sclerosis: possible association with microvascular abnormalities and extent of fibrosis. ACTA ACUST UNITED AC 2015; 53:1799-805. [DOI: 10.1515/cclm-2015-0079] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 03/05/2015] [Indexed: 11/15/2022]
Abstract
AbstractUrokinase plasminogen activator receptor (uPAR) is a key component of the fibrinolytic system involved in extracellular matrix remodeling and angiogenesis. Novel animal models supported the key role of uPAR not only in fibrosis but also in systemic sclerosis (SSc)-related microvascular abnormalities. The aim of this study was to investigate plasma soluble uPAR (suPAR) levels in SSc, and their association with organ-specific involvement.suPAR concentrations were measured by ELISA in SSc patient (n=83) and in healthy controls (n=29). Simultaneously, CRP and ESR were assessed. Detailed clinical data including skin, lung, heart and microvascular characteristics were evaluated at sampling.suPAR values were higher in SSc patients than in controls. Subgroup analysis showed higher suPAR values in diffuse cutaneous- than in limited cutaneous SSc and correlated with anti-Scl-70+. suPAR levels also associated with pulmonary function test parameters of fibrosis, presence of microvascular lesions (e.g., Raynaud phenomenon, naifold capillaroscopic abnormalities and digital ulcers) and arthritis.Our data indicate that suPAR might be a valuable early diagnostic marker of SSc which also correlates with disease severity.
Collapse
|
12
|
Szalay B, Vásárhelyi B, Cseh Á, Tulassay T, Deák M, Kovács L, Balog A. The impact of conventional DMARD and biological therapies on CD4+ cell subsets in rheumatoid arthritis: a follow-up study. Clin Rheumatol 2013; 33:175-85. [DOI: 10.1007/s10067-013-2352-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 07/17/2013] [Accepted: 07/25/2013] [Indexed: 01/06/2023]
|
13
|
Rusai K, Prokai A, Juanxing C, Meszaros K, Szalay B, Pásti K, Müller V, Heemann U, Lutz J, Tulassay T, Szabo A. Dexamethasone protects from renal ischemia/reperfusion injury: A possible association with SGK-1. ACTA ACUST UNITED AC 2013; 100:173-85. [DOI: 10.1556/aphysiol.100.2013.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
14
|
Balog A, Toldi G, Szalay B, Bekő G, Kádár G, Bocskai M, Deák M, Kovács L, Vásárhelyi B. AB0077 Soluble urokinase plasminogen activator receptor (supar) for monitoring inflammatory activity in different rheumatic diseases. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.77] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
15
|
Toldi G, Szalay B, Bekő G, Kovács L, Vásárhelyi B, Balog A. Plasma soluble urokinase plasminogen activator receptor (suPAR) levels in ankylosing spondylitis. Joint Bone Spine 2013; 80:96-8. [DOI: 10.1016/j.jbspin.2012.06.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Accepted: 06/27/2012] [Indexed: 11/17/2022]
|
16
|
Toldi G, Szalay B, Bekő G, Bocskai M, Deák M, Kovács L, Vásárhelyi B, Balog A. Plasma soluble urokinase plasminogen activator receptor (suPAR) levels in systemic lupus erythematosus. Biomarkers 2012; 17:758-63. [PMID: 23033975 DOI: 10.3109/1354750x.2012.728623] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
OBJECTIVE Soluble urokinase plasminogen activator receptor (suPAR) is a biomarker of systemic inflammation. We aimed to characterize plasma suPAR levels in SLE patients. METHODS We measured plasma suPAR, C reactive protein (CRP) and erythrocyte sedimentation rate (ESR) in 89 SLE patients and 29 healthy controls. RESULTS suPAR and ESR values were higher in SLE than in controls, while CRP levels were comparable. ROC analysis of suPAR levels indicated a cut-off value of 5.70 ng/mL to distinguish patients with high disease activity (SLEDAI >8). CONCLUSION suPAR might be an objective marker for identifying SLE patients with active disease.
Collapse
Affiliation(s)
- Gergely Toldi
- First Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | | | | | | | | | | | | | | |
Collapse
|
17
|
Szalay B, Ács L, Vásárhelyi B, Kovács L, Balog A. Successful Use of Tocilizumab in a Patient With Rheumatoid Arthritis Following Severe Pancytopenia During Etanercept Therapy. J Clin Rheumatol 2011; 17:377-9. [DOI: 10.1097/rhu.0b013e318231fd99] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
18
|
Mészáros G, Szalay B, Toldi G, Kaposi A, Vásárhelyi B, Treszl A. Kinetic measurements using flow cytometry: new methods for monitoring intracellular processes. Assay Drug Dev Technol 2011; 10:97-104. [PMID: 21919740 DOI: 10.1089/adt.2011.0368] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The aim of our work was to establish flow cytometry methods for the characterization of mitochondrial Ca(2+) levels, plasma membrane potential, and superoxide generation and to relate kinetics to that of cytoplasmic Ca(2+) levels during short-term activation of T-lymphocytes. We monitored the change of fluorescence absorbance of sequentially measured Jurkat cells for 12 min. The cells were stained with the fluorescent dyes Fluo3-AM, Rhod2/AM, di-BA-C4-(5), or dihydroethidium and then were stimulated with increasing doses of phytohemagglutinin (PHA) or were treated with rotenone. Double-logistic function was fitted to cytoplasmic Ca(2+) signal and mitochondrial Ca(2+) levels, whereas logistic function was fitted to plasma membrane potential and superoxide levels. The calculated function parameters were area under the curve (AUC), maximum (Max), time to reach maximum (t(max)), slope at the first 50% value of Max (Slope), and ending (End) values, respectively. We found significant dose-response relationship between PHA dose and cytoplasmic Ca(2+) signals (AUC, Max, Slope: P<0.05), mitochondrial Ca(2+) levels (AUC and Max: P<0.05), and plasma membrane potential (AUC and End values: P<0.05). In rotenone-treated cells, superoxide generation increased in a dose-dependent manner (P<0.05 for AUC and End values, respectively). The present methodology provides an opportunity for monitoring and characterizing mitochondrial Ca(2+) levels, plasma membrane potential, and superoxide generation in PHA-activated or rotenone-treated Jurkat cells with flow cytometry.
Collapse
Affiliation(s)
- Gergő Mészáros
- First Department of Pediatrics, Semmelweis University, Budapest, Hungary.
| | | | | | | | | | | |
Collapse
|
19
|
Gyarmati B, Szabó E, Szalay B, Czuczy N, Toldi G, Cseh A, Vásárhelyi B, Takáts Z. Serum maternal hepcidin levels 3 days after delivery are higher compared to those measured at parturition. J Obstet Gynaecol Res 2011; 37:1620-4. [PMID: 21733041 DOI: 10.1111/j.1447-0756.2011.01586.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM Our aim was to investigate the levels of hepcidin at parturition and 3 days after delivery and to relate hepcidin levels to parameters of iron homeostasis. MATERIALS AND METHODS We measured hepcidin levels with mass spectrometry in serum samples of 38 term pregnant women taken just prior to and 3 days after vaginal delivery (n = 23) or cesarean section (CS) (n = 15). Hepcidin levels were related to iron homeostasis parameters and interleukin (IL)-6 levels. Parameters measured before and after delivery were compared with the Wilcoxon test. RESULTS Serum iron levels (median, interquartile range) decreased (14.3, 9.6-21.1 vs. 8.9, 6.8-11.5 µmol/L, P < 0.01), while hepcidin levels increased (2.73, 2.2-3.45 vs. 10.62, 6.70-15.89 µg/L, P < 0.01) by the third day after parturition compared to those measured before delivery. IL-6 levels were comparable before and after delivery. No direct association between serum hepcidin and iron homeostasis parameters or IL-6 levels was found. CONCLUSIONS Factors triggering hepcidin synthesis dominate 3 days after delivery. Studies are needed to assess the contribution of hepcidin to iron homeostasis during the periparturition period.
Collapse
Affiliation(s)
- Béla Gyarmati
- Department of Obstetrics and Gynecology, Uzsoki Hospital, Hungary
| | | | | | | | | | | | | | | |
Collapse
|
20
|
Toldi G, Bíró E, Szalay B, Stenczer B, Molvarec A, Rigó J, Vásárhelyi B, Bekõ G. Soluble urokinase plasminogen activator receptor (suPAR) levels in healthy pregnancy and preeclampsia. Clin Chem Lab Med 2011; 49:1873-6. [PMID: 21722073 DOI: 10.1515/cclm.2011.656] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Preeclampsia is characterized by a maternal systemic inflammatory response and the impairment of maternal immune tolerance present in healthy pregnancy. Soluble urokinase plasminogen activator receptor (suPAR) is a biomarker increasingly used for the monitoring of systemic inflammation. We aimed to assess the levels of suPAR and other markers of systemic inflammation in preeclampsia compared to healthy pregnancy. METHODS We determined plasma suPAR, IL-6 and high sensitivity C-reactive protein (hs-CRP) levels in plasma samples of 62 healthy pregnant and 41 preeclamptic women in the third trimester of pregnancy. RESULTS Plasma suPAR levels were elevated in preeclampsia [3.18 (2.30-4.71) ng/mL vs. 2.02 (1.81-2.40) ng/mL, p=0.0001, median (interquartile range)]. IL-6 and hs-CRP levels were also higher compared with healthy pregnancy [5.99 (2.97-18.12) pg/mL vs. 1.41 (1.00-2.70) pg/mL, p=0.0001 and 6.60 (3.55-15.40) mg/L vs. 3.90 (2.10-7.25) mg/L, p=0.006, respectively, median (interquartile range)]. Linear regression analyses revealed an association between individual plasma suPAR and log IL-6 levels as well as log hs-CRP levels. CONCLUSIONS suPAR levels are elevated in preeclampsia and vary in a narrower range compared with IL-6 and hs-CRP. ROC analysis indicated that monitoring of suPAR levels is a suitable tool for the detection of systemic inflammation in pregnancy.
Collapse
Affiliation(s)
- Gergely Toldi
- First Department of Pediatrics, Semmelweis University, Budapest, Hungary.
| | | | | | | | | | | | | | | |
Collapse
|
21
|
Gál K, Cseh A, Szalay B, Rusai K, Vannay A, Lukácsovits J, Heemann U, Szabó AJ, Losonczy G, Tamási L, Müller V. Effect of cigarette smoke and dexamethasone on Hsp72 system of alveolar epithelial cells. Cell Stress Chaperones 2011; 16:369-78. [PMID: 21188663 PMCID: PMC3118827 DOI: 10.1007/s12192-010-0249-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2010] [Revised: 11/08/2010] [Accepted: 12/06/2010] [Indexed: 01/21/2023] Open
Abstract
Smoking is the leading risk factor of chronic obstructive pulmonary disease (COPD) and lung cancer. Corticosteroids are abundantly used in these patients; however, the interaction of smoking and steroid treatment is not fully understood. Heat shock proteins (Hsps) play a central role in the maintenance of cell integrity, apoptosis and cellular steroid action. To better understand cigarette smoke-steroid interaction, we examined the effect of cigarette smoke extract (CSE) and/or dexamethasone (DEX) on changes of intracellular heat shock protein-72 (Hsp72) in lung cells. Alveolar epithelial cells (A549) were exposed to increasing doses (0; 0.1; 1; and 10 μM/μl) of DEX in the medium in the absence(C) and presence of CSE. Apoptosis, necrosis, Hsp72 messenger-ribonucleic acid (mRNA) and protein expression of cells were measured, and the role of Hsp72 on steroid effect examined. CSE reduced the number of viable cells by significantly increasing the number of apoptotic and necrotic cells. DEX dose-dependently decreased the ratio of apoptosis when CSE was administered, without change in necrosis. CSE - DEX co-treatment dose-dependently increased Hsp72 mRNA and protein expression, with the highest level measured in CSE + DEX (10) cells, while significantly lower levels were noted in all respective C groups. Pretreatment with Hsp72 silencing RNA confirmed that increased survival observed following DEX administration in CSE-treated cells was mainly mediated via the Hsp72 system. CSE significantly decreases cell survival by inducing apoptosis and necrosis. DEX significantly increases Hsp72 mRNA and protein expression only in the presence of CSE resulting in increased cellular protection and survival. DEX exerts its cell protective effects by decreasing apoptotic cell death via the Hsp72 system in CSE-treated alveolar epithelial cells.
Collapse
Affiliation(s)
- Krisztina Gál
- Department of Pulmonology, Semmelweis University Budapest, Hungary.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Rusai K, Prókai A, Szebeni B, Mészáros K, Fekete A, Szalay B, Vannay Á, Degrell P, Müller V, Tulassay T, Szabó AJ. Gender differences in serum and glucocorticoid regulated kinase-1 (SGK-1) expression during renal ischemia/reperfusion injury. Cell Physiol Biochem 2011; 27:727-38. [PMID: 21691090 DOI: 10.1159/000330081] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2011] [Indexed: 11/19/2022] Open
Abstract
Several studies reported sexual dimorphism in the signaling mechanisms of renal ischemia/reperfusion (I/R). The anti-apoptotic serum and glucocorticoid-regulated kinase-1 (SGK-1) is up-regulated and has a significant protective role in renal I/R. SGK-1 has several target molecules, and inhibition of the inducible nitric oxide synthase (iNOS) transcription is one of its effector mechanisms. The objective of the present study was to examine if there is a gender-specific expression and activation of SGK-1 during renal I/R injury. In vitro, treatment of HK-2 kidney proximal tubular cells with different concentrations of 17-beta estradiol had no effect, whereas testosterone increased SGK-1 abundance in a dose-dependent manner. In vivo, in a rat model of unilateral renal I/R injury, there was a higher SGK-1 expression and phosphorylation in males 2 and 24 h after ischemia paralleled by reduction in the mRNA expression of iNOS compared to females. Deprivation of testosterone by castration of males resulted in decreased SGK-1 protein level at all time-points and reduced phosphorylation 2 and 24 h after reperfusion. Our results suggest that testosterone up-regulates SGK-1 in the kidney contributing to sexual dimorphisms in the cell signalling machinery. The significance of the testosterone-regulated SGK-1 level and activity in the kidney needs further investigations.
Collapse
Affiliation(s)
- Krisztina Rusai
- First Department of Pediatrics, Semmelweis University, Budapest, Bókay u. 53-54. 1083, Hungary.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Gyarmati B, Szabó E, Szalay B, Cseh A, Czuczy N, Toldi G, Vásárhelyi B, Takáts Z. [Increased hepcidin levels three days after gynecological interventions]. Orv Hetil 2010; 151:1790-4. [PMID: 20940119 DOI: 10.1556/oh.2010.28922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
UNLABELLED Hepcidin is an endogenous substance that inhibits iron absorption and plasma iron levels. Due to technical reasons its levels are not routinely assessed and data regarding its clinical relevance are limited. We analyzed the alteration of hepcidin levels following gynecological interventions. Hepcidin levels were determined by mass spectrometry, along with the levels of interleukin-6, the main inductor of hepcidin with ELISA in 17 women undergoing gynecological intervention just prior to and three days after the surgery. The results were related to iron homeostasis parameters. A decrease in serum iron (median, interquartile range) (17.85 [15.25-24.9] versus 10.1 [7.6-15.0] μmol/l, p<0.01) and transferrin levels (60.3 [55.93-67.18] versus 53.1 [49.7-60.0], p< 0.01) μmol/l, simultaneously with an increase in hepcidin (2.75 [2.24-3.51] versus 8.01 [6.8-9.67] μg/l, p<0.01) and interleukin-6 levels (ND = not detected) (ND [ND - 2.2] versus 8.15 [2.31-12.86], p<0.01). CONCLUSION As with other acute phase proteins postoperative hepcidin levels dramatically increase, simultaneously with other changes in iron homeostasis. These results indicate a possible causative relationship between increased hepcidin and decreased iron levels. In clinical practice, determination of hepcidin levels may be indicated for characterization and, possibly, prediction of postoperative iron homeostasis. However, measurement of hepcidin level in clinical practice is unlikely in the near future due to the lack of available kits for routine clinical laboratories.
Collapse
Affiliation(s)
- Béla Gyarmati
- Fővárosi Önkormányzat Uzsoki Utcai Kórház Szülészeti és Nőgyógyászati Osztály Budapest
| | | | | | | | | | | | | | | |
Collapse
|
24
|
Gyarmati B, Beko G, Szalay B, Cseh A, Vásárhelyi B, Treszl A. Maternal cytokine balance on the third postpartum day is not affected by the mode of delivery after healthy pregnancies. J Int Med Res 2010; 38:208-13. [PMID: 20233531 DOI: 10.1177/147323001003800124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Previous reports have suggested that delivery is associated with the induction of inflammatory cytokines. The present study was designed to investigate whether increased cytokine production was present on postpartum day 3 after a normal pregnancy and whether any changes were associated with the mode of delivery. In total, 33 pregnant women were enrolled; 18 delivered vaginally and 15 underwent an elective caesarean section (C-section). The levels of 17 cytokines and growth hormones were measured at the beginning of delivery or before anaesthesia and on postpartum day 3. While interleukin (IL)-6 and IL-8 levels decreased significantly postpartum, other cytokine concentrations were comparable before and after delivery. Only IL-7 levels were significantly increased in the C-section patients compared with the vaginal birth patients postpartum. In conclusion, there was no risk of a prolonged maternal inflammatory reaction after an uncomplicated vaginal birth or elective C-section, so it is probably not necessary to consider this as an issue when making a decision on the mode of delivery following uncomplicated pregnancy.
Collapse
Affiliation(s)
- B Gyarmati
- Department of Obstetrics and Gynaecology, Uzsoki Hospital, Budapest, Hungary
| | | | | | | | | | | |
Collapse
|
25
|
Cseh A, Bohács A, Szalay B, Losonczy G, Tulassay T, Vásárhelyi B, Tamási L. Peripheral dendritic cells in asthma. J Investig Allergol Clin Immunol 2010; 20:533-535. [PMID: 21243940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Affiliation(s)
- A Cseh
- Research Group for Pediatrics and Nephrology, Semmelweis University and Hungarian Academy of Sciences, Budapest, Hungary.
| | | | | | | | | | | | | |
Collapse
|
26
|
Király K, Szalay B, Szalai J, Barna I, Gyires K, Verbeken M, Rónai AZ. Intrathecally injected Ile-Pro-Ile, an inhibitor of membrane ectoenzyme dipeptidyl peptidase IV, is antihyperalgesic in rats by switching the enzyme from hydrolase to synthase functional mode to generate endomorphin 2. Eur J Pharmacol 2009; 620:21-6. [PMID: 19695241 DOI: 10.1016/j.ejphar.2009.08.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2009] [Revised: 06/29/2009] [Accepted: 08/03/2009] [Indexed: 12/15/2022]
Abstract
We have found recently that membrane-bound dipeptidyl peptidase IV (DPP-IV) generated extracellularly immunoreactive endomorphin-2 from Tyr-Pro precursor in a depolarisation-sensitive manner in rat isolated L4,5 dorsal root ganglia when the enzyme was switched to synthase mode by the hydrolase inhibitor Ile-Pro-Ile. Presently, we induced hyperalgesia in rats by injecting carrageenan into the right hindpaw and measured the reduction in nociceptive threshold (hyperalgesia) to pressure (Randall-Selitto test). The hyperalgesia, peaking at 180 min after injection, was fully reversed by intrathecal administration of 30 nmol/rat Ile-Pro-Ile. The antihyperalgesic action was antagonized by s.c. naloxone (1 mg/kg) and intrathecally injected specific antiserum to endomorphin-2 indicating that the opioid receptor-mediated effect was produced by an endogenously generated endomorphin-2-like immunoreactive substance. Intrathecal Ile-Pro-Ile was ineffective as an analgesic in the acute nociceptive test such as the rat tail-flick, whereas endomorphin-2 (EC(50)=13.3 nmol/rat), endomorphin-1 (6.8 nmol/rat), morphine (0.11 nmol/rat) and DAMGO (0.0059 nmol/rat) exerted opioid receptor-mediated analgesia given by the same route. We concluded that carrageenan-induced C-fiber barrage (wind-up) may create ideal conditions for the de novo synthesis of endomorphin-2 in rat spinal cord dorsal horns if the DPP-IV enzyme is switched to the synthase functional mode by Ile-Pro-Ile.
Collapse
Affiliation(s)
- Kornél Király
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.
| | | | | | | | | | | | | |
Collapse
|
27
|
Rónai AZ, Király K, Szebeni A, Szemenyei E, Prohászka Z, Darula Z, Tóth G, Till I, Szalay B, Kató E, Barna I. Immunoreactive endomorphin 2 is generated extracellularly in rat isolated L4,5 dorsal root ganglia by DPP-IV. ACTA ACUST UNITED AC 2009; 157:1-2. [PMID: 19540879 DOI: 10.1016/j.regpep.2009.06.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2009] [Accepted: 06/12/2009] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIMS The gene(s) encoding for endomorphin precursor(s) is/are still unknown. We have raised the possibility of and did find some evidence for a potential de novo biosynthetic route starting from Tyr-Pro precursor. To pursue further this possibility we measured the generation of immunoreactive endomorphin-2 (E2-IR) in adult rat isolated L4,5 dorsal root ganglia. RESULTS AND CONCLUSIONS In rat isolated dorsal root ganglia the combination of presumed biosynthetic precursor of endomorphin 2 (E2), Tyr-Pro with the dipeptidyl peptidase IV (DPP-IV) inhibitor Ile-Pro-Ile generated 1.60+/-0.37 pg/mg Wet Tissue Weight_30 min E2-IR in the bathing fluid (n=4) with an 8-fold increase upon depolarization whereas the tissue content was low (0.50+/-0.08 pg/mg_WTW). Substance P, as determined by ELISA in the pilot experiments, was found almost exclusively within the tissues. It is concluded that E2-IR was generated extracellularly by a membrane-bound DPP-IV, which was switched to "synthase" mode by the hydrolase inhibitor Ile-Pro-Ile. DPP-IV was depolarization-sensitive in "synthase" functional mode.
Collapse
Affiliation(s)
- András Z Rónai
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, P.O.B. 370, H-1445, Budapest, Hungary.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Gál K, Prókai A, Szebeni B, Cseh A, Szalay B, Vannay A, Lukácsovits J, Szabó A, Müller V. 60P THE EFFECT OF STEROIDS ON THE HSP SYSTEM OF THE CELLS. Lung Cancer 2009. [DOI: 10.1016/s0169-5002(09)70183-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
29
|
Abstract
A megváltozott sejthalál (apoptózis) számos betegség kialakulásában és progressziójában központi szerepet játszik. Az apoptózist reguláló fehérjék lehetséges terápiás célpontok, ezek egyik tagja az Akt enzim. Az Akt enzim a legtöbb sejtben jelen van. Növekedési faktorok és inzulin, valamint környezeti hatások, így oxigéntenzió-változás és magas hőmérséklet hatására aktiválódik. Az Akt a sejtek metabolizmusában és túlélésében játszik szerepet. Egyes betegségcsoportokban az Akt megváltozott működése figyelhető meg. Számos rosszindulatú daganatban, így prosztata-, emlő-, vastagbél- és hasnyálmirigyrákban, valamint rosszindulatú hematológiai betegségekben az Akt túlműködését igazolták. Diabéteszben egyrészt a béta-sejt-pusztulásban játszik szerepet, másrészt a sejtek inzulinszenzitivitását is befolyásolja. Több kutatási eredmény azt is bebizonyította, hogy a már forgalmazott gyógyszerek egy részének, így a statinoknak, tiazolidindionoknak és az ACE-gátlóknak egyaránt van Akt-moduláló hatása. Jelenleg kutatások folynak olyan Akt-gátlók kifejlesztésére, amelyek a kemoterápia hatékonyságát segíthetik. A perifozin és a triciribin két olyan, fázis I–II. stádiumban lévő Akt-gátló, amely kombinációban adva növelheti emlőrákban, petefészekrákban, gastrointestinalis stromatumorokban, szarkómákban, karcinómákban és hematológiai daganatokban a túlélési idő hosszát.
Collapse
Affiliation(s)
- Áron Cseh
- 1 Semmelweis Egyetem, Általános Orvostudományi Kar I. Gyermekgyógyászati Klinika Budapest Bókay u. 54. 1083
| | - Beáta Szebeni
- 2 Magyar Tudományos Akadémia – Semmelweis Egyetem Gyermekgyógyászati és Nefrológiai Kutatócsoport Budapest
| | - Balázs Szalay
- 1 Semmelweis Egyetem, Általános Orvostudományi Kar I. Gyermekgyógyászati Klinika Budapest Bókay u. 54. 1083
| | - Barna Vásárhelyi
- 2 Magyar Tudományos Akadémia – Semmelweis Egyetem Gyermekgyógyászati és Nefrológiai Kutatócsoport Budapest
| |
Collapse
|
30
|
Mészáros G, Szalay B, Toldi G, Mezei G, Tamási L, Vásárhelyi B, Cserháti E, Treszl A. FoxP3+ regulatory T cells in childhood allergic rhinitis and asthma. J Investig Allergol Clin Immunol 2009; 19:238-240. [PMID: 19610270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
MESH Headings
- Adolescent
- Asthma/immunology
- Asthma/metabolism
- Child
- Forkhead Transcription Factors/immunology
- Forkhead Transcription Factors/metabolism
- Humans
- Male
- Rhinitis, Allergic, Perennial/immunology
- Rhinitis, Allergic, Perennial/metabolism
- Rhinitis, Allergic, Seasonal/immunology
- Rhinitis, Allergic, Seasonal/metabolism
- T-Lymphocyte Subsets/immunology
- T-Lymphocyte Subsets/metabolism
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
Collapse
Affiliation(s)
- G Mészáros
- First Department of Pediatrics, Semmelweis University, Bókay u. 53-54, Budapest, Hungary
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Abstract
A method for the simultaneous isolation of plasmid DNA from as many as 96 Escherichia coli clones in less than 2 h is described. It is based on a modified version of the alkaline lysis procedure originally described by Birnboim and Doly (Nucleic Acids Res. 7, 1513-1523, 1979). The handling of DNA samples is facilitated by the use of microtiter plates with membrane filter bottoms. All centrifugation steps are replaced by filtrations ("the filtration method"). The yield of plasmid DNA from 0.35 ml of an overnight culture is sufficient for restriction analysis of the plasmid clones. Up to 400 nucleotides' readable sequences could be obtained in cycle sequencing reactions with an unmodified sequencing protocol on an automated ABI sequencer.
Collapse
Affiliation(s)
- A Ruppert
- Faculty of Chemistry, Department of Biochemistry and Molecular Biology, University of Hamburg, Germany
| | | | | | | | | |
Collapse
|
32
|
Szalay B. [Rhinolith obstructing the total right side of the nasal cavity]. Fortschr Geb Rontgenstr Nuklearmed 1968; 108:687-9. [PMID: 5748691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
33
|
Szalay B. Ein die rechtsseitige Nasenhöhle völlig verlegender Rhinolith. ROFO-FORTSCHR RONTG 1968. [DOI: 10.1055/s-0029-1228390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|