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Jahrsdörfer B, Proffen M, Scholz J, Hägele J, Ludwig C, Vieweg C, Grempels A, Fabricius D, Lotfi R, Körper S, Adler G, Schrezenmeier H. BNT162b2 Booster Vaccination Elicits Cross-Reactive Immunity Against SARS-CoV-2 Variants B.1.1.529 and B.1.617.2 in Convalescents of All Ages. Front Immunol 2022; 13:920210. [PMID: 35795665 PMCID: PMC9250979 DOI: 10.3389/fimmu.2022.920210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 05/23/2022] [Indexed: 12/30/2022] Open
Abstract
In this prospective observational cohort study we analyzed cellular and serological immune response parameters against SARS-CoV-2 and current variants of concern (VOC) in 147 COVID-19-convalescent and 39 COVID-19-naïve individuals before and after BNT162b2 booster vaccination. No significant differences regarding immunological response parameters were observed between younger and older individuals. Booster vaccination induced full recovery of both cellular and serological response parameters including IFN-γ secretion and anti-spike antibody titers with strong neutralization capacities against wild type SARS-COV-2 and Delta. Surprisingly, even serological neutralization capacity against Omicron was detectable one month after second vaccination and four months before it had been first observed in South Africa. As a result, more than 90% of convalescent individuals exhibited detectable and 75% strong Omicron neutralization capacity after booster vaccination, compared with 72% and 46% of COVID-19-naïve individuals. Our results support the notion that broad and cross-reactive immune memory against SARS-CoV-2 including currently known VOCs can be established by booster vaccination with spike-based mRNA vaccines like BNT162b2, particularly in COVID-19-convalescent individuals of all ages. Nevertheless, especially in COVID-19-naïve individuals future variants escaping the memory immune response may require vaccine approaches such as inactivated whole virus vaccines, which include all antigenic components of the virus.
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Affiliation(s)
- Bernd Jahrsdörfer
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg – Hessen and University Hospital Ulm, Ulm, Germany
- *Correspondence: Bernd Jahrsdörfer,
| | - Matthias Proffen
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg – Hessen and University Hospital Ulm, Ulm, Germany
| | - Judith Scholz
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg – Hessen and University Hospital Ulm, Ulm, Germany
| | - Janina Hägele
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg – Hessen and University Hospital Ulm, Ulm, Germany
| | - Carolin Ludwig
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg – Hessen and University Hospital Ulm, Ulm, Germany
| | - Christiane Vieweg
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg – Hessen and University Hospital Ulm, Ulm, Germany
| | - Aline Grempels
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg – Hessen and University Hospital Ulm, Ulm, Germany
| | - Dorit Fabricius
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm, Germany
| | - Ramin Lotfi
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg – Hessen and University Hospital Ulm, Ulm, Germany
| | - Sixten Körper
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg – Hessen and University Hospital Ulm, Ulm, Germany
| | - Guido Adler
- Medical Faculty, Ulm University, Ulm, Germany
| | - Hubert Schrezenmeier
- Department of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg – Hessen and University Hospital Ulm, Ulm, Germany
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Jahrsdörfer B, Fabricius D, Scholz J, Ludwig C, Grempels A, Lotfi R, Körper S, Adler G, Schrezenmeier H. BNT162b2 Vaccination Elicits Strong Serological Immune Responses Against SARS-CoV-2 Including Variants of Concern in Elderly Convalescents. Front Immunol 2021; 12:743422. [PMID: 34659239 PMCID: PMC8511403 DOI: 10.3389/fimmu.2021.743422] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 09/14/2021] [Indexed: 11/13/2022] Open
Abstract
Elderly residents of long-term care facilities (LTCFs) have long been underrepresented in studies on vaccine efficacy, particularly in light of currently emerging variants of concern (VOCs). In this prospective observational cohort study, we analyzed serological immune responses in 190 individuals before, 3 weeks after 1st and 3 weeks after 2nd vaccination with BNT162b2. Unvaccinated COVID-19-convalescent subjects served as reference. End points comprised serum anti-spike IgG and IgA titers as well as neutralization capacities against unmutated and mutated SARS-CoV-2 receptor binding domains including B.1.1.7, B.1.351 and P.1. We found that antibody titers and neutralization capacities up to 3 weeks after 2nd vaccination with BNT162b2 were significantly higher in COVID-19-convalescent as compared to COVID-19-naive vaccinees. Moreover, pre-vaccination anti-NCP IgG titers, but not age or gender, had a high impact on the strength and kinetics of post-vaccination neutralization capacity development. Most importantly, BNT162b2-induced neutralization capacity was cross-reactive with VOCs. In contrast to unvaccinated convalescents, vaccinated convalescent individuals of all ages acquired strong neutralizing capacities against current VOCs. The present study suggests that COVID-19-convalescent individuals with a broad age range between 18 and 98 years benefit from BNT162b2 vaccination by developing strong and broad neutralizing immune responses against SARS-CoV-2 including current VOCs.
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Affiliation(s)
- Bernd Jahrsdörfer
- Department of Transfusion Medicine, Ulm University, Ulm, Germany.,Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg - Hessen and University Hospital Ulm, Ulm, Germany
| | - Dorit Fabricius
- Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Ulm, Germany
| | - Judith Scholz
- Department of Transfusion Medicine, Ulm University, Ulm, Germany.,Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg - Hessen and University Hospital Ulm, Ulm, Germany
| | - Carolin Ludwig
- Department of Transfusion Medicine, Ulm University, Ulm, Germany.,Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg - Hessen and University Hospital Ulm, Ulm, Germany
| | - Aline Grempels
- Department of Transfusion Medicine, Ulm University, Ulm, Germany.,Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg - Hessen and University Hospital Ulm, Ulm, Germany
| | - Ramin Lotfi
- Department of Transfusion Medicine, Ulm University, Ulm, Germany.,Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg - Hessen and University Hospital Ulm, Ulm, Germany
| | - Sixten Körper
- Department of Transfusion Medicine, Ulm University, Ulm, Germany.,Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg - Hessen and University Hospital Ulm, Ulm, Germany
| | - Guido Adler
- Medical Faculty, Ulm University, Ulm, Germany
| | - Hubert Schrezenmeier
- Department of Transfusion Medicine, Ulm University, Ulm, Germany.,Institute for Clinical Transfusion Medicine and Immunogenetics, German Red Cross Blood Transfusion Service Baden-Württemberg - Hessen and University Hospital Ulm, Ulm, Germany
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Kleinert S, Rapp P, Schuch F, Ronneberger M, Wendler J, Sternad P, Popp F, Bartz-Bazzanella P, Von der Decken CB, Karberg K, Gauler G, Wurth P, Spaethling-Mestekemper S, Kuhn C, Englbrecht M, Vorbrüggen W, Adler G, Welcker M. AB0494 COGNITIVE IMPAIRMENT IN AXIAL SPONDYLOARTHRITIS? Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:There is some evidence that neuropsychiatric changes occur in systemic lupus(1) and rheumatoid arthritis(2). However, little is known regarding a possible disease-related impairment of cognitive abilities in axial spondyloarthritis (axSpA).Objectives:To evaluate patients with axSpA regarding cognitive impairments.Methods:Patients with axSpA attending two rheumatology practices were routinely evaluated by rheumatologists and underwent a computer-based memory and attention test (MAT) (3, 4) with subscale scores ranging from 0 (worst) to 15 (best). The results of short-term memory and working memory were compared to an age-, sex- and education-matched control group of healthy subjects. Descriptive results are presented as median (IQR) for interval data and n (%) for nominal data if not stated otherwise. Two-tailed Wilcoxon signed-rank tests including Bonferroni-Holm adjustment for multiple tests were conducted to investigate the magnitude of potential differences in cognitive abilities.Results:101 consecutive patients were tested (Table 1). After multiple testing adjustment for two subscales, Wilcoxon signed-rank tests returned significant findings for working memory (V = 539.5, p = 0.006, |r| = 0.204) but not for short-term memory (V = 1075, p = 0.351, |r| = 0.078). Regarding the scales’ anchors, descriptive results on pairwise differences suggested axSpA patients to have working memory scores that are on average 10.7% lower compared to control participants (mean Δ= -1.64, SD Δ= 5.95).Table 1.Patients and disease characteristicsn%MeanSDMedian25% Quantile75% QuantileAge10110051.111.6524260Age (female)4847.552.611.75444.561Age (male)5352.549.811.5514157< 13 years formal education4746.5≥ 13 years formal education5453.5HLA B27 positive n/N64/9263.4Disease duration (years)10110013.711.712421Disease duration (female, years)4847.511.69.99417.2Disease duration (male, years)5352.515.512.915523BASDAI9291.13.71.73.82.45BASFI9190.132.42.31.24.5BASMI7574.31.92.3103ASDAS98972.30.82.31.82.8Conclusion:The MAT computerized testing is a feasible test and was well accepted by patients. Results regarding working memory suggest that cognitive abilities needed to accomplish everyday tasks may be impaired in axSpA patients. Further work is needed to characterise possible causes of or associations with this cognitive impairment.References:[1]Zabala A, Salgueiro M, Saez-Atxukarro O, Ballesteros J, Ruiz-Irastorza G, Segarra R. Cognitive Impairment in Patients With Neuropsychiatric and Non-neuropsychiatric Systemic Lupus Erythematosus: A Systematic Review and Meta-analysis. J Int Neuropsychol Soc. 2018:1-11.[2]Vitturi BK, Nascimento BAC, Alves BR, de Campos FSC, Torigoe DY. Cognitive impairment in patients with rheumatoid arthritis. J Clin Neurosci. 2019;69:81-7.[3]Adler G, Bektas M, Feger M, Lembach Y. [Computer-based assessment of memory and attention: evaluation of the memory and attention test (MAT)]. Psychiatr Prax. 2012;39(2):79-83.[4]Adler G, Lembach Y. Memory and selective attention in multiple sclerosis: cross-sectional computer-based assessment in a large outpatient sample. Eur Arch Psychiatry Clin Neurosci. 2015;265(5):439-43.Acknowledgements:This study was funded by the RHADAR GbR (A Network of Rheumatologists), Bahnhofstr. 32, 82152 Planegg, Germany. RHADAR GbR has received a grant for this study from Novartis Pharma GmbH.Disclosure of Interests:Stefan Kleinert Consultant of: Novartis, Abbvie, Grant/research support from: Novartis, Praxedis Rapp: None declared., Florian Schuch Speakers bureau: Novartis, Abbvie, Gilead, Consultant of: Novartis, Abbvie, Gilead, Monika Ronneberger: None declared., Joerg Wendler Speakers bureau: Roche, Pharma, JanssenCilag, Novartis, Abbvie, Consultant of: JanssenCilag, Patrizia Sternad: None declared., Florian Popp: None declared., Peter Bartz-Bazzanella: None declared., Cay-Benedict von der Decken: None declared., Kirsten Karberg Speakers bureau: Roche, Sanofi, Abbvie, Lilly, Georg Gauler Speakers bureau: Abbvie, Gilead, Novartis, Lilly, Consultant of: Lilly, Gilead, Abbvie, Patrick Wurth Speakers bureau: Abbvie, Lilly, UCB, Medac, Susanna Spaethling-Mestekemper Speakers bureau: Abbvie, BMS, Celgene, Gilead, GSK, Hexal, Lilly, MSD, Novartis, Pfizer, Sanofi, UCB, Christoph Kuhn: None declared., Matthias Englbrecht Speakers bureau: AbbVie, Chugai, Eli Lilly, Novartis, Roche, Sanofi, Mundipharma, Paid instructor for: AbbVie, Chugai, Roche, Consultant of: AbbVie, Novartis, Roche, Sanofi, Grant/research support from: Roche, Chugai, Wolfgang Vorbrüggen: None declared., Georg Adler: None declared., Martin Welcker Speakers bureau: Abbvie, Actelion, Amgen, Biogen,BMS, Berlin Chemie, Celgene, Galapagos, Gilead, GSK, Hexal, Janssen, Medac, MSD, Mundipharma, Mylan, Novartis, Pfizer, Roche, Sanofi, SOBI, UCB, Grant/research support from: Novartis, Abbvie.
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Mahmutbegovic N, Mehicevic A, Adler G, Omerhodzic I, Mahmutbegovic E, Valjevac A, Borecki K, Mehmedika Suljic E. Bosnian Study on Markers of Ischaemic Stroke in Adults 20-50 Years Old (SMISAO): Preliminary Report. Folia Biol (Praha) 2020; 66:169-178. [PMID: 34087973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Previous research suggested that several genetic polymorphisms are associated with increased risk of ischaemic stroke (IS) in young adults. However, the predictive biomarkers of IS in young adults are still unclear. Our aim was to assess the contribution of modifiable and genetic factors in IS in young adults. In total, 40 stroke patients and 40 healthy controls aged 20 to 50 years were recruited. Data on modifiable factors were collected, then participants were genotyped for seven SNPs linked to thrombophilia: ACE rs1799752, PAI-1 rs1799889, APOE rs1412 and rs429358, FV rs6025 and rs1800595, and FII rs62623459. Significantly increased risk factors: hypertension and dyslipidaemia in stroke patients compared with the controls: 50.0 % vs 27.5 % and 75.0 % vs 40.0% (P = 0.039 and P = 0.002, respectively) were observed. Stroke patients compared with controls did not differ in distribution of ACE, APOE, FV, and FII variants. The 4G4G homozygotes of the PAI-1 gene were significantly more prevalent in stroke patients compared to the controls: 42.5 % vs 17.5 %, (P = 0.033). In the group with the small vessel occlusion subtype of stroke, statistically significant overrepresentation of 4G4G homozygotes and frequency of the 4G allele compared with controls: 57.1 % vs 17.5 % and 0.7 vs 0.45 (P = 0.026 and P = 0.03, respectively) were observed. Independent predictors of stroke incident were: dyslipidaemia (OR (95% CI) = 4.2 (1.4-12.4)) and 4G4G genotype (OR (95% CI) = 3.9 (1.1-13.7)). These results confirm the contribution of dyslipidaemia and 4G4G genotype in the increased risk of IS in young Bosnian adults.
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Affiliation(s)
- N Mahmutbegovic
- Department of Neurology, Clinical Center of Sarajevo University, Sarajevo, Bosnia and Herzegovina
| | - A Mehicevic
- Department of Neurology, Clinical Center of Sarajevo University, Sarajevo, Bosnia and Herzegovina
| | - G Adler
- Department of Studies in Antropogenetics and Biogerontology, Pomeranian Medical University, Szczecin, Poland
| | - I Omerhodzic
- Department of Neurosurgery, Clinical Center of Sarajevo University, Sarajevo, Bosnia and Herzegovina
| | - E Mahmutbegovic
- Institution of Health Protection of Women and Motherhood Canton Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - A Valjevac
- Department of Human Physiology, Faculty of Medicine, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - K Borecki
- Department of Studies in Antropogenetics and Biogerontology, Pomeranian Medical University, Szczecin, Poland
| | - E Mehmedika Suljic
- Department of Neurology, Clinical Center of Sarajevo University, Sarajevo, Bosnia and Herzegovina
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Adler G, Mahmutbegovic E, Uzar I, Adler MA, Mahmutbegovic N, Valjevac A. First Bosnian Study of the Relationship between APOE rs7412 and rs429358 Variants and Pregnancy Loss. Folia Biol (Praha) 2018; 64:65-69. [PMID: 30338758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Due to inconsistent results of APOE variants in the survival of pregnancy we investigated the potential relationship of APOE rs7412 and rs429358 with pregnancy loss (PL) in Bosnian women. We enrolled 154 women with PL. The minimum week of miscarriage was 6, while the maximum was 28. As a control group, an equal number of mothers with at least one live-born child was included. All women were recruited from the Institution of Health Protection of Women and Motherhood in Sarajevo, Bosnia and Herzegovina. Genotyping was performed by real- time PCR at the Department of General Pharmacology and Pharmacoeconomics, Pomeranian Medical University. The prevalence of genotypes E2/E3, E2/E4, E3/E3, E3/E4, E4/E4 in the group with and without PL were: 14.3 %, 1.3 %, 70.8 %, 12.3 %, 1.3 %, and 13.6 %, 1.3 %, 70.1 %, 14.3 %, 0.7 %, respectively. The frequency of the E4/E4 genotype in women with 1-2 and 3-4 PL compared to women without PL did not differ significantly between those three groups (P value = 0.0712). The frequencies of alleles ԑ2, ԑ3, ԑ4 in the group with and without PL were: 6.8 %, 85.1 %, 8.1 % and 7.5 %, 84.1 %, 8.4 %, respectively, and did not differ significantly. We conclude that our study does not confirm rs7412 and rs429358 as a potential risk factor for PL in the studied group. To elucidate the relationship between PL and variants of the APOE gene, studies with a larger sample size and placental histomorphology and genetic diagnosis are required.
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Affiliation(s)
- G Adler
- Department of Studies in Antropogenetics and Biogerontology, Pomeranian Medical University, Szczecin, Poland
| | - E Mahmutbegovic
- Institution of Health Protection of Women and Motherhood Canton Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - I Uzar
- Department of General Pharmacology and Pharmacoeconomics, Pomeranian Medical University, Szczecin, Poland
| | - M A Adler
- Warsaw School of Economics, Warsaw, Poland
| | - N Mahmutbegovic
- Neurology Clinic, Clinical Center of University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - A Valjevac
- Laboratory for Molecular Medicine, Center for Genetics, Medical Faculty, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
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Nikendei C, Huhn D, Adler G, von Rose PB, Eckstein TM, Fuchs B, Gewalt SC, Greiner B, Günther T, Herzog W, Junghanss T, Krczal T, Lorenzen D, Lutz T, Manigault MA, Reinhart N, Rodenberg M, Schelletter I, Szecsenyi J, Steen R, Straßner C, Thomsen M, Wahedi K, Bozorgmehr K. [Development and implementation of an outpatient clinic at an initial reception centre for asylum seekers in the German federal state of Baden-Wuerttemberg]. Z Evid Fortbild Qual Gesundhwes 2017; 126:31-42. [PMID: 28935457 DOI: 10.1016/j.zefq.2017.07.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 06/29/2017] [Accepted: 07/27/2017] [Indexed: 11/29/2022]
Abstract
In 2015, more than 890,000 asylum seekers were registered in Germany. The provision of medical and psychosocial care for asylum seekers is facing numerous obstacles. Access to health care is mostly insufficient, particularly in initial reception centres. The present article describes the development and implementation of an interdisciplinary outpatient clinic for asylum seekers at the main registration authority in the state of Baden-Wuerttemberg operated by physicians of the University Hospital of Heidelberg and the local Medical Association in Heidelberg. A steering committee was appointed to plan and implement the interdisciplinary outpatient clinic. Semi-structured interviews with nine steering committee members were conducted to elucidate perceived barriers during the planning and implementation phase. The steering committee's strong personal commitment and the health authorities' impartial management were cited as the main contributing factors to the success of the implementation process. Significant barriers were seen in the funding of personnel, equipment, and language mediation as well as in legal liability and billing-related aspects. Results are discussed with a focus on financing, administrative and legal framework as well as language mediation, documentation and further matters that are essential to ensure high-quality care.
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Affiliation(s)
- Christoph Nikendei
- Zentrum für Psychosoziale Medizin, Universitätsklinikum Heidelberg, Klinik für Allgemeine Innere Medizin und Psychosomatik, Heidelberg, Deutschland.
| | - Daniel Huhn
- Zentrum für Psychosoziale Medizin, Universitätsklinikum Heidelberg, Klinik für Allgemeine Innere Medizin und Psychosomatik, Heidelberg, Deutschland
| | - Guido Adler
- Vorstand, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - Peta Becker von Rose
- Praxis für Innere Medizin, Heidelberg, Deutschland; Werkstatt Gesundheit e.V., Heidelberg, Deutschland
| | | | | | - Sandra C Gewalt
- Abteilung Allgemeinmedizin und Versorgungsforschung, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - Bernhard Greiner
- Praxis für Kinderheilkunde und Jugendmedizin, Heidelberg, Deutschland
| | | | - Wolfgang Herzog
- Zentrum für Psychosoziale Medizin, Universitätsklinikum Heidelberg, Klinik für Allgemeine Innere Medizin und Psychosomatik, Heidelberg, Deutschland
| | - Thomas Junghanss
- Zentrum für Infektiologie, Sektion Klinische Tropenmedizin, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - Thomas Krczal
- Patientenverwaltung, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - Detlef Lorenzen
- Werkstatt Gesundheit e.V., Heidelberg, Deutschland; Praxis für Allgemeinmedizin und Psychotherapie, Heidelberg, Deutschland
| | - Thomas Lutz
- Zentrum für Kinder- und Jugendmedizin, Klinik für Allgemeine Pädiatrie, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - Meryl A Manigault
- Praxis für Gynäkologie, Heidelberg, Deutschland; Internationales Frauen- und Familienzentrum, Heidelberg, Deutschland
| | - Nico Reinhart
- Institut für Public Health, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | | | - Iris Schelletter
- Zentrum für Kinder- und Jugendmedizin, Klinik für Allgemeine Pädiatrie, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - Joachim Szecsenyi
- Abteilung Allgemeinmedizin und Versorgungsforschung, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - Rainer Steen
- Gesundheitsamt Rhein-Neckar-Kreis, Heidelberg, Deutschland
| | - Cornelia Straßner
- Abteilung Allgemeinmedizin und Versorgungsforschung, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | | | - Katharina Wahedi
- Abteilung Allgemeinmedizin und Versorgungsforschung, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - Kayvan Bozorgmehr
- Abteilung Allgemeinmedizin und Versorgungsforschung, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
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Olszowski T, Milona M, Janiszewska-Olszowska J, Safranow K, Skonieczna-Żydecka K, Walczak A, Sikora M, Chlubek D, Madlani A, Adler G. The Lack of Association between FCN2 Gene Promoter Region Polymorphisms and Dental Caries in Polish Children. Caries Res 2017; 51:79-84. [PMID: 28088794 DOI: 10.1159/000455054] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 12/09/2016] [Indexed: 12/16/2023] Open
Abstract
The aim of this study was to examine the association of single-nucleotide polymorphisms (SNPs) in the gene encoding ficolin-2 protein (FCN2 gene) at positions -986 (rs17514136), -602 (rs3124953), and -4 (rs3124952) with dental caries in Polish children. Two hundred and sixty Polish Caucasian children aged 15 years were enrolled in this study: 82 with "higher" caries experience (DMFT >5) and 178 with "lower" caries experience (DMFT ≤5). In addition, subjects with caries experience (DMFT ≥1) and caries-free subjects (DMFT = 0) were compared. FCN2 SNPs were genotyped with PCR-RFLP methods. There were no significant differences in the genotype, allele, or haplotype distributions in 3 analyzed SNPs of the FCN2 gene between children with "higher" and those with "lower" caries experience as well as between children with caries experience and caries-free children. In conclusion, we did not find any association of FCN2 promoter polymorphisms at positions -986, -602, and -4 with dental caries in Polish children.
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Affiliation(s)
- T Olszowski
- Department of Hygiene and Epidemiology, Pomeranian Medical University, Szczecin, Poland
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Szachta P, Skonieczna-Żydecka K, Adler G, Karakua-Juchnowicz H, Madlani H, Ignyś I. Immune related factors in pathogenesis of autism spectrum disorders. Eur Rev Med Pharmacol Sci 2016; 20:3060-3072. [PMID: 27460736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE Etiology of Autism Spectrum Disorders (ASD) is insufficiently known. It is suggested that genes play a crucial role in ASD but additional environmental factors to exacerbate the syndrome are needed. Recently, the inflammatory factors in ASD that may predispose to the disorder attract a great attention. Therefore, the aim of this article was to review the literature on the possible association of the immune system malfunctions with the risk of developing ASD. MATERIALS AND METHODS Available articles from PubMed and Google Scholar were analyzed using time descriptors: 1996-2015 and key words: autism spectrum disorder, cytokines and immune system. RESULTS Individuals with ASD demonstrate aberrant immune response in central nervous system, peripheral blood and gastrointestinal tract. CONCLUSIONS Immune malfunctions may play a role in developing ASD.
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Affiliation(s)
- P Szachta
- Vitaimmun Medical Center, Poznań, Poland.
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9
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Qin R, Schmid H, Münzberg C, Maass U, Krndija D, Adler G, Seufferlein T, Liedert A, Ignatius A, Oswald F, Eiseler T, von Wichert G. Phosphorylation and turnover of paxillin in focal contacts is controlled by force and defines the dynamic state of the adhesion site. Cytoskeleton (Hoboken) 2015; 72:101-12. [PMID: 25620625 DOI: 10.1002/cm.21209] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 12/26/2014] [Accepted: 12/31/2014] [Indexed: 01/09/2023]
Abstract
Micro-environmental clues are critical to cell behavior. One of the key elements of migration is the generation and response to forces. Up to now there is no definitive concept on how the generation and responses to cellular forces influence cell behavior. Here, we show that phosphorylation of paxillin is a crucial event in the response to exogenous forces. Application of force induced growth of adhesion sites and this phenomenon was accompanied by a downregulation of Src family kinase activity, which in turn led to a decrease in the phosphorylation of paxillin at the tyrosine residues Y31 and Y118. The force-dependent growth of adhesion sites is mediated by a decrease in the turnover-rate of paxillin in focal contacts. This turnover critically depended on the phosphorylation state of paxillin at Y31/118. Paxillin is an important regulator in the control of the aggregate state of the whole adhesion site since the turnover of other adhesion site proteins such as vinculin is influenced by the phosphorylation state of paxillin as well. Taken together these data suggest that SFK dependent phosphorylation of paxillin is a crucial event in the regulation of adhesion site function in response to force.
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Affiliation(s)
- Ruifang Qin
- Department of Internal Medicine I, University of Ulm, Albert Einstein Allee 23, Ulm, Germany
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10
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Piotrowska U, Adler G, Kozicki I. Phosducin regulates secretory activity in TT line of thyroid parafollicular C cells. Horm Metab Res 2015; 47:114-8. [PMID: 25153685 DOI: 10.1055/s-0034-1385903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The endocrine activity of the thyroid gland is accomplished by its follicular and parafollicular cells. In these cells, numerous G proteins-dependent pathways are active and potentially could be regulated by a 33-kDa cytoplasmic protein phosducin, which interacts with the Gβ subunit and may compete with Gα or Gβγ dimer effectors. Significant expression of phosducin has been shown in the retina, pineal gland, and some neurons. Here, we studied postoperative thyroid tissue samples collected from patients with nodular goiter and 2 thyroid-derived cell lines for the presence of phosducin. Using reverse transcription PCR with product sequencing and highly sensitive immunodetection we identified phosducin mRNA and protein in the thyroid gland and parafollicular C TT cells, but not in the follicular Nthy-ori 3-1 cell line. We also observed that siRNA-mediated silencing of phosducin gene expression decreased Ca(2+)-stimulated secretion of calcitonin and serotonin by TT cells.
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Affiliation(s)
- U Piotrowska
- Department of Biochemistry and Molecular Biology, Medical Center of Postgraduate Education, Warsaw, Poland
| | - G Adler
- Department of Biochemistry and Molecular Biology, Medical Center of Postgraduate Education, Warsaw, Poland
| | - I Kozicki
- Department of General Surgery, Medical Center of Postgraduate Education, Warsaw, Poland
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11
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Rumianowski B, Rotter I, Brodowska A, Adler G, Kowalski J, Karakiewicz B, Laszczyńska M. [Influence of Selected Reproductive Factors and Smoking on Age at Menopause]. Gesundheitswesen 2015; 78:749-751. [PMID: 25622211 DOI: 10.1055/s-0034-1396847] [Citation(s) in RCA: 1] [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: 10/24/2022]
Abstract
Introduction: Early menopause may be associated with serious health risks resulting from, for example, decreased oestrogen levels. This may occur despite hormone replacement therapy. Aim: The aim of this study was the determination of the effect of selected reproductive factors and smoking on age at the onset of menopause in women from Szczecin and surrounding areas. Material and Methods: 305 women after natural menopause were asked to complete a questionnaire, and blood samples were collected from them to test for the levels of follicle stimulating hormone (FSH) and oestradiol (E2). Results: Smoking women experienced menopause on average more than a year earlier than non-smokers, but this difference was not statistically significant. There was no statistically significant effect of age at menarche or first birth on age at the last menstrual period. Conclusions: Age at menarche and first birth were not related to age at menopause. In smoking women, menopause occurred earlier but the difference was not statistically significant.
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Affiliation(s)
- B Rumianowski
- 4. Department of Histology and Development Biology, Pomeranian Medical University, Szczecin, Poland
| | - I Rotter
- Department of Medical Rehabilitation, Pomeranian Medical University, Szczecin, Poland
| | - A Brodowska
- Department of Reproduction and Urogynecology, Pomeranian Medical University, Szczecin, Poland
| | - G Adler
- Department of Gerontobiology, Pomeranian Medical University, Szczecin, Poland
| | - J Kowalski
- Medical Computer Science & Quality of Education Researches Department, Pomeranian Medical University, Szczecin, Poland
| | - B Karakiewicz
- Department of Public Health, Pomeranian Medical University, Szczecin, Poland
| | - M Laszczyńska
- 4. Department of Histology and Development Biology, Pomeranian Medical University, Szczecin, Poland
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12
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Gress TM, Adler G, Apte M, Wilson J. In memoriam: Max G. Bachem, MD, PhD, Dr.hc Professor for Clinical Chemistry, 1952-2014. Pancreatology 2014; 14:231-2. [PMID: 25207336 DOI: 10.1016/j.pan.2014.07.001] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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13
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Lembach Y, Adler G. [Cognitive impairment in multiple sclerosis. State of research and methodological issues]. Fortschr Neurol Psychiatr 2014; 82:280-97; quiz 298. [PMID: 24824207 DOI: 10.1055/s-0034-1366386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Y Lembach
- Institut für Studien zur Psychischen Gesundheit (ISPG), Mannheim
| | - G Adler
- Institut für Studien zur Psychischen Gesundheit (ISPG), Mannheim
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14
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Adler G, Mueller B, Articus K. The transdermal formulation of rivastigmine improves caregiver burden and treatment adherence of patients with Alzheimer's disease under daily practice conditions. Int J Clin Pract 2014; 68:465-70. [PMID: 24588972 PMCID: PMC4237461 DOI: 10.1111/ijcp.12374] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Rivastigmine is the only cholinesterase inhibitor (ChEI) available as transdermal patch. The patch was developed to improve gastrointestinal tolerability and treatment adherence to higher dosages as compared with oral medication. Preferences of patients and caregivers for the patch were reported; however, neither patient compliance nor caregiver burden has yet been measured under routine practice conditions. METHODS This was a prospective, multi-centre, observational study in patients with Alzheimer's disease treated with rivastigmine patch in Germany. To compare the transdermal with oral dosage forms, physicians were asked to enrol patients who recently switched from oral to transdermal medication. Beyond effectiveness and tolerability, outcome measures were drug adherence evaluated by the Morisky questionnaire, and caregiver burden, measured as the daily time expenditure for dressing the patient, controlling appearance and administration of medication. RESULTS In total, 1104 outpatients (57.5% female gender; mean age 77 ± 7 years) were enrolled in 220 sites. After 6 months of treatment, 67.5% of patients had an improved Clinical Global Impression and the Mini-Mental State Examination score increased from 19.0 ± 5.1 to 20.0 ± 5.2 (p < 0.001); 84.1% of patients were still on treatment, 64.6% on the target dose of 9.5 mg/day. Compliance and patient satisfaction with therapy continuously increased over the study period and average time savings of caregivers added up to 20 min/day. In general, tolerability was deemed good and there were no unexpected adverse events. CONCLUSIONS Transdermal rivastigmine is an effective treatment alternative, which may improve adherence and treatment satisfaction of the patient and relieve the caregiver. Controlled parallel-group trials are warranted. CLINICAL TRIALS REGISTRATION none (observational study).
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Affiliation(s)
- G Adler
- Institut für Studien zur Psychischen Gesundheit (ISPG), Mannheim, Germany
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15
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Flores JM, Washenfelder RA, Adler G, Lee HJ, Segev L, Laskin J, Laskin A, Nizkorodov SA, Brown SS, Rudich Y. Complex refractive indices in the near-ultraviolet spectral region of biogenic secondary organic aerosol aged with ammonia. Phys Chem Chem Phys 2014; 16:10629-42. [DOI: 10.1039/c4cp01009d] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Distribution of the number of N atoms and the change in the complex refractive index of unreacted and NH3-aged limonene SOA.
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Affiliation(s)
- J. M. Flores
- Department of Earth and Planetary Sciences
- Weizmann Institute of Science
- Rehovot 76100, Israel
| | - R. A. Washenfelder
- Cooperative Institute for Research in Environmental Sciences
- University of Colorado
- Boulder, USA
- Chemical Sciences Division
- Earth System Research Laboratory
| | - G. Adler
- Department of Earth and Planetary Sciences
- Weizmann Institute of Science
- Rehovot 76100, Israel
| | - H. J. Lee
- Department of Chemistry
- University of California
- Irvine, USA
| | - L. Segev
- Department of Earth and Planetary Sciences
- Weizmann Institute of Science
- Rehovot 76100, Israel
| | - J. Laskin
- Physical Sciences Division
- Pacific Northwest National Laboratory
- Richland, USA
| | - A. Laskin
- Environmental Molecular Sciences Laboratory
- Pacific Northwest National Laboratory
- Richland, USA
| | | | - S. S. Brown
- Chemical Sciences Division
- Earth System Research Laboratory
- National Oceanic and Atmospheric Administration
- Boulder, USA
| | - Y. Rudich
- Department of Earth and Planetary Sciences
- Weizmann Institute of Science
- Rehovot 76100, Israel
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Burghardt S, Erhardt A, Claass B, Huber S, Adler G, Jacobs T, Chalaris A, Schmidt-Arras D, Rose-John S, Karimi K, Tiegs G. Hepatocytes contribute to immune regulation in the liver by activation of the Notch signaling pathway in T cells. J Immunol 2013; 191:5574-82. [PMID: 24140644 DOI: 10.4049/jimmunol.1300826] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The "liver tolerance effect" has been attributed to a unique potential of liver-resident nonprofessional APCs including hepatocytes (HCs) to suppress T cell responses. The exact molecular mechanism of T cell suppression by liver APCs is still largely unknown. In mice, IL-10-dependent T cell suppression is observed after Th1-mediated hepatitis induced by Con A. In this study, we show that HCs, particularly those from regenerating livers of Con A-pretreated mice, induced a regulatory phenotype in naive CD4(+) T cells in vitro. Using reporter mice, we observed that these T regulatory cells released substantial amounts of IL-10, produced IFN-γ, failed to express Foxp3, but suppressed proliferation of responder T cells upon restimulation with anti-CD3 mAb. Hence, these regulatory cells feature a similar phenotype as the recently described IL-10-producing Th1 cells, which are generated upon activation of Notch signaling. Indeed, inhibition of γ-secretase and a disintegrin and metalloproteinase 17 but not a disintegrin and metalloproteinase 10, respectively, which blocked Notch activation, prevented IL-10 secretion. HCs from Con A-pretreated mice showed enhanced expression of the Notch ligand Jagged1 and significantly increased receptor density of Notch1 on CD4(+) T cells. However, HCs from Con A-pretreated IFN regulatory factor 1(-/-) mice, which cannot respond to IFN-γ, as well as those from IFN-γ(-/-) mice failed to augment IL-10 production by CD4(+) T cells. In conclusion, it seems that HCs fine-tune liver inflammation by upregulation of Jagged1 and activation of Notch signaling in Th1 cells. This mechanism might be of particular importance in the regenerating liver subsequent to Th1-mediated hepatitis.
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Affiliation(s)
- Sven Burghardt
- Institute of Experimental Immunology and Hepatology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
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17
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Adler G, Bektas M, Baumgart N, Lembach Y. Memory deficits in multiple sclerosis subtypes. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1463] [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: 10/26/2022]
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18
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Adler G, Baumgart N, Bektas M, Lembach Y. Memory and attention in patients with Parkinson's disease. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.419] [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: 11/27/2022]
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19
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Adler G, Baumgart N, Müller B. Butyrylcholinesterase genotype in Alzheimer patients not treated with rivastigmine. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1168] [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: 11/15/2022]
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20
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Adler G, Windeler J. [Discussion forum on effectiveness assessment]. Z Evid Fortbild Qual Gesundhwes 2013; 107:199. [PMID: 23790692 DOI: 10.1016/j.zefq.2013.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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21
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Lembach Y, Adler G. Kognitive Beeinträchtigungen bei Multipler Sklerose. Akt Neurol 2013. [DOI: 10.1055/s-0032-1333014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Y. Lembach
- Institut für Studien zur Psychischen Gesundheit (ISPG), Mannheim
| | - G. Adler
- Institut für Studien zur Psychischen Gesundheit (ISPG), Mannheim
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22
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Poziomkowska-Gesicka I, Gawlikowska-Sroka A, Dzieciolowska-Baran E, Teul I, Adler G, Ciechanowicz A, Kurek M. β2-Adrenergic Receptor Gene Polymorphism and Response to Bronchodilating Treatment Evaluated by Spirometry. Advances in Experimental Medicine and Biology 2013; 755:169-77. [DOI: 10.1007/978-94-007-4546-9_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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23
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Adler G, Windeler J. [Evaluation of medical products is possible. 5. Discussion forum of GFR abd IQWiG was devoted to studies of the therapeutic treatment with medical products]. Z Evid Fortbild Qual Gesundhwes 2012; 106:313-314. [PMID: 22818146 DOI: 10.1016/j.zefq.2012.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
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24
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Adler G. Situation und Perspektiven der Forschung in den Gesundheitsfachberufen. Dtsch Med Wochenschr 2012; 137 Suppl 2:S33. [DOI: 10.1055/s-0032-1305066] [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: 10/28/2022]
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25
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Krndija D, Münzberg C, Maass U, Hafner M, Adler G, Kestler HA, Seufferlein T, Oswald F, von Wichert G. The phosphatase of regenerating liver 3 (PRL-3) promotes cell migration through Arf-activity-dependent stimulation of integrin α5 recycling. J Cell Sci 2012; 125:3883-92. [PMID: 22595524 DOI: 10.1242/jcs.104885] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
The formation of metastasis is one of the most critical problems in oncology. The phosphatase of regenerating liver 3 (PRL-3) is a new target in colorectal cancer, mediating metastatic behavior through a promigratory function. However, detailed explanations for this effect have remained elusive. Here we show that PRL-3 interacts with the ADP-ribosylation factor 1 (Arf1). PRL-3 colocalizes with Arf1 in an endosomal compartment and associates with transmembrane proteins such as the transferrin receptor and α5 integrins. PRL-3 interacts with Arf1 through a distinct motif and regulates activation of Arf1. PRL-3-mediated migration depends on expression and activation of Arf1 and is sensitive to treatment with Brefeldin A. We also demonstrate that PRL-3 modulates recycling of α5 integrins and that its phosphatase activity as well as Arf activation and compartmentalization with Arf1 are required for this effect. In summary our data identify a new function for PRL-3 and show that Arf1 is a new PRL-3-dependent mediator of enhanced migration of cancer cells through enhanced recycling of matrix receptors.
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Affiliation(s)
- Denis Krndija
- Department of Internal Medicine I, University of Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
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26
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Gibbons C, Bonyhay I, Benson A, Adler G, Freeman R. Experimental Hypoglycemia Is a Human Model of Stress-Induced Hyperalgesia (S38.002). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.s38.002] [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: 11/15/2022] Open
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27
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Wichelhaus A, Brauchli L, Song Q, Adler G, Bode G. Prevalence of Helicobacter pylori in the adolescent oral cavity: dependence on orthodontic therapy, oral flora and hygiene. J Orofac Orthop 2012; 72:187-95. [PMID: 21744197 DOI: 10.1007/s00056-011-0024-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Helicobacter pylori (HP) infection usually occurs in childhood. While there are various studies on the prevalence of HP in dental plaque, ours is the first to analyze its prevalence during orthodontic therapy and its interaction with competitive bacteria in adolescents. SUBJECTS AND METHODS The prevalence of HP was examined before and during the first 12 weeks of orthodontic therapy with fixed appliances in 11 patients with a mean age of 12.7 years. A total of 93 plaque samples were analyzed using PCR. The data acquired at every consultation were the following: PCR analysis of dental plaque and (13)C urea breath tests for HP, quantitative analyses of saliva for Lactobacilli and Streptococcus mutans, the interproximal plaque index (API), and sulcus bleeding index (SBI). RESULTS The prevalence of HP in plaque was 82% before orthodontic therapy, dropping to 54% during therapy (t test, p≤0.05). In contrast to HP's prevalence, the Lactobacilli count rose (p≤0.05). The number of Streptococcus mutans bacteria in saliva decreased during orthodontic therapy (p≤0.05). CONCLUSION The prevalence of HP in dental plaque amounted to 82%. Orthodontic treatment did not reduce its prevalence. The prevalence of Lactobacilli was inversely proportional to that of HP.
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Affiliation(s)
- Andrea Wichelhaus
- Department of Orthodontics, Hospital Center Ludwig-Maximilian University, Munich, Germany.
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Łoniewska B, Clark JS, Kaczmarczyk M, Adler G, Biñczak-Kuleta A, Kordek A, Horodnicka-Józwa A, Dawid G, Rudnicki J, Ciechanowicz A. Possible counter effect in newborns of 1936A>G (I646V) polymorphism in the AKAP10 gene encoding A-kinase-anchoring protein 10. J Perinatol 2012; 32:230-4. [PMID: 21701445 DOI: 10.1038/jp.2011.85] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVE Cyclic adenosine monophosphate/protein kinase A (PKA) is important in embryonic development. The human AKAP10 gene is polymorphic: 1936A>G results in changes to a PKA-binding domain and increased targeting to mitochondria. Previous studies found G1936 as 'deleterious' in adults, and this study investigates whether this holds true in preterm birth. STUDY DESIGN Study group consisted of 80 preterm newborns (PTNs) born before the 38th gestation week. Control group consisted of 123 full-term healthy newborns born after the 37th gestation week with uncomplicated pregnancies. Genomic DNA was extracted from umbilical blood and AKAP10 genotypes were identified by PCR/restriction enzyme. RESULT Significant differences in frequencies of 1936A>G genotypes/alleles between both groups were found. PTNs had increased frequency (55%) of AA homozygotes (odds ratio, AA versus AG+GG: 2.63 (95% confidence interval: 1.33 to 5.20), P=0.006) after adjustments: mothers with previous PTNs, smoking, first pregnancy, first delivery and Cesarean section. CONCLUSION Results suggest G1936 is preventative factor against preterm birth, in contrast with previously asserted negative effects in adults.
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Affiliation(s)
- B Łoniewska
- Department of Neonatal Diseases, Pomeranian Medical University, Szczecin, Poland
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Erkan M, Adler G, Apte MV, Bachem MG, Buchholz M, Detlefsen S, Esposito I, Friess H, Gress TM, Habisch HJ, Hwang RF, Jaster R, Kleeff J, Klöppel G, Kordes C, Logsdon CD, Masamune A, Michalski CW, Oh J, Phillips PA, Pinzani M, Reiser-Erkan C, Tsukamoto H, Wilson J. StellaTUM: current consensus and discussion on pancreatic stellate cell research. Gut 2012; 61:172-8. [PMID: 22115911 PMCID: PMC3245897 DOI: 10.1136/gutjnl-2011-301220] [Citation(s) in RCA: 315] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mert Erkan
- Department of General Surgery, Klinikum rechts der Isar, Technische Universität München, Munich, Germany.
| | - Guido Adler
- Department of Internal Medicine, Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - Minoti V Apte
- Faculty of Medicine, The University of New South Wales, Sydney, New South Wales, Australia
| | - Max G Bachem
- Department of Clinical Chemistry, Universitätsklinikum Ulm, Ulm, Germany
| | - Malte Buchholz
- Department of Internal Meidicine, Universitätsklinikum Marburg, Marburg, Germany
| | - Sönke Detlefsen
- Department of Pathology, Odense University Hospital, Odense, Denmark
| | - Irene Esposito
- Institute of Pathology, Klinikum rechts der Isar, TU München, Munich, Germany
| | - Helmut Friess
- Department of Surgery, Klinikum rechts der Isar, TU München, Munich, Germany
| | - Thomas M Gress
- Department of Internal Meidicine, Universitätsklinikum Marburg, Marburg, Germany
| | - Hans-Joerg Habisch
- Department of Clinical Chemistry, Universitätsklinikum Ulm, Ulm, Germany
| | - Rosa F Hwang
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Robert Jaster
- Department of Internal Medicine, University of Rostock, Rostock, Germany
| | - Jörg Kleeff
- Department of Surgery, Klinikum rechts der Isar, TU München, Munich, Germany
| | - Günter Klöppel
- Institute of Pathology, Klinikum rechts der Isar, TU München, Munich, Germany
| | - Claus Kordes
- Department of Gastroenterology, Hepatology and Infectious Diseases, Universitätsklinikum Düsseldorf, Düsseldorf, Germany
| | - Craig D Logsdon
- Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Atsushi Masamune
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Tohoku, Japan
| | | | - Junseo Oh
- Laboratory of Cellular Oncology, Korea University Graduate School of Medicine, Seoul, South Korea
| | - Phoebe A Phillips
- Faculty of Medicine, The University of New South Wales, Sydney, New South Wales, Australia
| | - Massimo Pinzani
- Department of Internal Medicine, University of Florence, Florence, Italy
| | | | - Hidekazu Tsukamoto
- Southern California Research Center for ALPD and Cirrhosis, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Jeremy Wilson
- Faculty of Medicine, The University of New South Wales, Sydney, New South Wales, Australia
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Schwarz P, Kübler JAM, Strnad P, Müller K, Barth TFE, Gerloff A, Feick P, Peyssonnaux C, Vaulont S, Adler G, Kulaksiz H. Hepcidin is localised in gastric parietal cells, regulates acid secretion and is induced by Helicobacter pylori infection. Gut 2012; 61:193-201. [PMID: 21757452 DOI: 10.1136/gut.2011.241208] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUNDS AND AIMS Hepcidin is an antimicrobial peptide and the central regulator of iron metabolism. Given that hepcidin was shown to be expressed in a variety of extrahepatic tissues and that stomach plays a role in iron absorption and in defence against infections, this study analysed the importance of hepcidin in the stomach. METHODS Expression and localisation of gastric hepcidin was studied by quantitative RT-PCR, western blot, immunofluorescence and in situ hybridisation. Regulation of gastric hepcidin expression was analysed both in vitro and in vivo. Hepcidin wild-type (WT) and knockout (KO) animals were used to determine the impact of hepcidin on gastric bacterial overgrowth as well as gastric acid secretion. RESULTS Hepcidin was abundantly expressed in the gastric fundus and corpus of all tested species. Treatment of AGS cells with ferric nitrilotriacetate solution downregulated hepcidin expression levels, while desferroxamine, interleukin 6 and Helicobacter pylori infection upregulated it. In humans, gastric hepcidin expression was elevated during H pylori infection and normalised after successful eradication. Gastric hepcidin is localised in parietal cells that are indispensable for gastric acid secretion. Comparisons of WT and hepcidin KO mice revealed that acid secretion in hepcidin-deficient mice is markedly reduced and is associated with gastric bacterial overgrowth, expression changes in multiple factors involved in acid secretion (Atp4a, Cck2r,Gas, Sst and Sst2r) and with reduced circulating gastrin levels. In WT mice, pantoprazole activated and histamine downregulated hepcidin expression levels. CONCLUSIONS Hepcidin is a product of parietal cells regulating gastric acid production and may contribute to development of gastric ulcers under stress conditions.
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Affiliation(s)
- Peggy Schwarz
- Department of Internal Medicine I, Gastroenterology, University Hospital Ulm, Ulm, Germany
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Olszowski T, Adler G, Janiszewska-Olszowska J, Safranow K, Kaczmarczyk M. MBL2, MASP2, AMELX, and ENAM gene polymorphisms and dental caries in Polish children. Oral Dis 2012; 18:389-95. [PMID: 22221294 DOI: 10.1111/j.1601-0825.2011.01887.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The aim of the study was to examine whether the MBL2 C(-290)G and G161A, MASP2 A359G, AMELX C287T and C522T, and ENAM C2452T polymorphisms are associated with dental caries. SUBJECTS AND METHODS Genomic DNA of 95 Polish children with 'higher caries experience' (HC) and 84 subjects with 'lower caries experience' (LC) belonging to two age-groups (5 and 13 years old) was extracted from the buccal mucosa. SNPs were genotyped with PCR-RFLP methods. RESULTS Among 5-year-old children, we found significantly higher percentage of subjects carrying MBL2 (-290)G allele in HC group compared with LC group (43.2%vs 17.6%, P = 0.023). MBL2 C(-290)G-G161A C-G haplotype was overrepresented in LC group in 5-year-olds (P = 0.01), while the opposite association was observed in 13-year-olds, where C-G was overrepresented in HC group (P = 0.028). In 5-year-old children, the frequency of MBL2 G-G haplotype was higher in HC group compared with LC subjects (P = 0.045), while the opposite association (with borderline significance) was observed in 13-year-old children (P = 0.057). SNPs in MASP2, AMELX, and ENAM were not associated with dental caries. CONCLUSION MBL2 gene polymorphism is associated with caries experience in Polish children, but the direction of this association seems to be opposite in primary and permanent dentition.
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Affiliation(s)
- T Olszowski
- Department of Hygiene, Epidemiology and Public Health, Pomeranian Medical University, Szczecin, Poland.
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Azoitei N, Kleger A, Schoo N, Thal DR, Brunner C, Pusapati GV, Filatova A, Genze F, Möller P, Acker T, Kuefer R, Van Lint J, Baust H, Adler G, Seufferlein T. Protein kinase D2 is a novel regulator of glioblastoma growth and tumor formation. Neuro Oncol 2011; 13:710-24. [PMID: 21727210 DOI: 10.1093/neuonc/nor084] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [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
Glioblastoma multiforme, a highly aggressive tumor of the central nervous system, has a dismal prognosis that is due in part to its resistance to radio- and chemotherapy. The protein kinase C (PKC) family of serine threonine kinases has been implicated in the formation and proliferation of glioblastoma multiforme. Members of the protein kinase D (PKD) family, which consists of PKD1, -2 and, -3, are prominent downstream targets of PKCs and could play a major role in glioblastoma growth. PKD2 was highly expressed in both low-grade and high-grade human gliomas. The number of PKD2-positive tumor cells increased with glioma grading (P < .001). PKD2 was also expressed in CD133-positive glioblastoma stem cells and various glioblastoma cell lines in which the kinase was found to be constitutively active. Inhibition of PKDs by pharmacological inhibitors resulted in substantial inhibition of glioblastoma proliferation. Furthermore, specific depletion of PKD2 by siRNA resulted in a marked inhibition of anchorage-dependent and -independent proliferation and an accumulation of glioblastoma cells in G0/G1, accompanied by a down-regulation of cyclin D1 expression. In addition, PKD2-depleted glioblastoma cells exhibited substantially reduced tumor formation in vivo on chicken chorioallantoic membranes. These findings identify PKD2 as a novel mediator of glioblastoma cell growth in vitro and in vivo and thereby as a potential therapeutic target for this devastating disease.
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Affiliation(s)
- Ninel Azoitei
- Department of Internal Medicine l, Medical University of Ulm, Germany
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Adler G, Steeg C, Pfeffer K, Murphy TL, Murphy KM, Langhorne J, Jacobs T. B and T lymphocyte attenuator restricts the protective immune response against experimental malaria. J Immunol 2011; 187:5310-9. [PMID: 21998455 DOI: 10.4049/jimmunol.1101456] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The immune response against the blood stage of malaria has to be tightly regulated to allow for vigorous antiplasmodial activity while restraining potentially lethal immunopathologic damage to the host like cerebral malaria. Coinhibitory cell surface receptors are important modulators of immune activation. B and T lymphocyte attenuator (BTLA) (CD272) is a coinhibitory receptor expressed by most leukocytes, with the highest expression levels on T and B cells, and is involved in the maintenance of peripheral tolerance by dampening the activation of lymphocytes. The function of BTLA is described in several models of inflammatory disorders and autoimmunity, but its function in infectious diseases is less well characterized. Also, little is known about the influence of BTLA on non-T cells. In this study, we analyzed the function of BTLA during blood-stage malaria infection with the nonlethal Plasmodium yoelii strain 17NL. We show that BTLA knockout mice exhibit strongly reduced parasitemia and clear the infection earlier compared with wild-type mice. This increased resistance was seen before the onset of adaptive immune mechanisms and even in the absence of T and B cells but was more pronounced at later time points when activation of T and B cells was observed. We demonstrate that BTLA regulates production of proinflammatory cytokines in a T cell-intrinsic way and B cell intrinsically regulates the production of P. yoelii 17NL-specific Abs. These results indicate that the coinhibitory receptor BTLA plays a critical role during experimental malaria and attenuates the innate as well as the subsequent adaptive immune response.
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Affiliation(s)
- Guido Adler
- Department of Immunology, Bernhard Nocht Institute for Tropical Medicine, 20359 Hamburg, Germany
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Adler G, v d Knesebeck JH. [Shortage and need of physicians in Germany? Questions addressed to health services research]. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2011; 54:228-37. [PMID: 21290278 DOI: 10.1007/s00103-010-1208-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The problem of shortage of physicians has been discussed controversially in Germany for years, and the different positions of the interest groups involved have not been resolved. The question of the present and anticipated future requirement of physicians is central for an appropriate and necessary medical care of the population. In the analysis, supply and demand of medical care have to be distinguished. Relatively reliable data do exist for the supply of physicians; however, the changing number of working hours that male and--in particular female--physicians are willing to contribute should be taken into consideration. Reliable data for the future demand are presently not available. Several variables (e.g., demography, disease spectrum of an aging society, medical progress, the changing rules of working hours, and the shift of medical care between hospital and practice care) depend on future developments. Considering the existing serious indicators of a growing shortage of physicians, it is recommended to put more effort into the scientific investigation of these factors. More profound data should improve the basis for decisions in health and education politics.
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Affiliation(s)
- G Adler
- Vorsitzender des Gesundheitsforschungsrats des Bundesministeriums für Bildung und Forschung und Medizinischer Vorstand, Vorstandsvorsitzender der Universitätsmedizin Mainz der Johannes Gutenberg-Universität Mainz, Langenbeckstrasse 1, Mainz, Germany.
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Klaus J, Reinshagen M, Herdt K, Adler G, von Boyen GBT, von Tirpitz C. Intravenous ibandronate or sodium-fluoride--a 3.5 years study on bone density and fractures in Crohn's disease patients with osteoporosis. J Gastrointestin Liver Dis 2011; 20:141-148. [PMID: 21725510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND AND AIM Osteoporosis commonly afflicts Crohn's disease (CD) patients. Management remains unclear, with limited results for intravenous (i.v.) bisphosphonates and a follow-up longer than one year. Intravenous bisphosphonates bypass gastrointestinal-tract irritation offering an interesting alternative suitable for CD patients. We tested the long-term efficacy and safety of colecalciferol and calcium with sodium-fluoride or i.v. ibandronate for osteoporosis in CD. METHODS 66 CD patients with lumbar osteoporosis (T-score<-2.5) were randomized to receive colecalciferol (1000 IU), calcium-citrate (800 mg) and intermittent sustained-release sodium-fluoride (50 mg) [groupA, n=33] or i.v. ibandronate (1 mg/3-monthly) [groupB, n=33]. Dual-energy X-ray absorptiometry of the lumbar-spine and right femur and X-rays of the spine were performed at baseline and after 1.0, 2.25 and 3.5 years. Fracture-assessment included visual reading and quantitative morphometry of X-rays. RESULTS 55 (83.3%) patients completed at least the 1st year available for intention-to-treat (ITT) analysis, 42 (63.6%) completed the 2nd and 35 (53.0%) the 3rd year available for per-protocol analysis. Lumbar T-score increased by +0.23±0.43 (95%CI: 0.057-0.407, p<0.05), +0.71±1.05 (95%CI: 0.193-1.232, p<0.001) and +0.73±0.82 (95%CI: 0.340-1.336, p<0.001) (group A), and +0.28±0.41 (95%CI: 0.132-0.459, p<0.05), +0.43±0.55 (95%CI: 0.184-0.671, p<0.01) and +0.51±0.74 (95%CI: 0.145-0.882, p<0.001) (group B) during 1.0, 2.25 and 3.5 years follow-up time. In 2.71 years of follow-up, with the ITT analysis, the lumbar T-score increased by +0.66±0.97 (group A, p<0.001) and +0.46±0.67 (group B, p<0.001). One vertebral fracture with sodium-fluoride was not enough to detect differences between groups and the study was not powered for this. Study medication was well-tolerated and safe. CONCLUSIONS Sodium-fluoride and i.v. ibandronate improved osteoporosis. Keeping in mind bisphosphonates as a standard of osteoporosis care that reduce fracture-rate, data we do not have for sodium-fluoride, CD patients with osteoporosis can be treated safely with i.v. ibandronate.
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Affiliation(s)
- Jochen Klaus
- University of Ulm, Department of Internal Medicine I, 89081 Ulm, Germany.
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Schwarz P, Strnad P, von Figura G, Janetzko A, Krayenbühl P, Adler G, Kulaksiz H. A novel monoclonal antibody immunoassay for the detection of human serum hepcidin. J Gastroenterol 2011; 46:648-56. [PMID: 21136275 DOI: 10.1007/s00535-010-0344-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Accepted: 10/18/2010] [Indexed: 02/04/2023]
Abstract
BACKGROUND Hepcidin is a liver-derived peptide hormone regulating iron metabolism. Changes in the expression of hepcidin are known to be the key pathogenic factors in hereditary hemochromatosis and are associated with infection and inflammation. To better understand the hormone's function in human disease, we aimed to establish an immunoassay to determine hepcidin concentrations in serum. METHODS Monoclonal antibodies mHK(8) and mHK(9) were generated and characterized by dot blot, Western blot, and immunofluorescence. A competitive enzyme-linked immunosorbent assay (ELISA) was established with mHK(9). RESULTS Both antibodies recognized hepcidin, by dot blot and Western blot, respectively. In human liver, mHK(8)/(9) showed an immunofluorescence staining pattern in hepatocytes identical to that of established prohepcidin antibodies. The developed immunoassay with mHK(9), reliably detecting mature hepcidin in serum over a large concentration range (0.9-140 ng ml⁻¹), showed high sensitivity and precision (intra-/interassay coefficients of variation: 4-5 and 7-11%; mean linearity: 85-112%; mean recovery: 87-114%). To test the clinical functionality of the developed assay we measured hepcidin serum concentrations in healthy volunteers, hepatitis C virus (HCV) patients, and two groups of hemochromatotic patients undergoing phlebotomy. The assay distinguished low hepcidin level in HCV and homozygous hemochromatosis patients from normal-range controls and compound heterozygous hemochromatosis patients. In healthy subjects and HCV patients, hepcidin levels were correlated with iron and transferrin saturation; no correlation was observed in the hemochromatotic patients. CONCLUSION We developed a monoclonal antibody ELISA that quantifies serum hepcidin levels with high sensitivity, robustness, and reliability of detection. The hepcidin ELISA should help to enhance our understanding of hepcidin-related human disorders.
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Affiliation(s)
- Peggy Schwarz
- Division of Gastroenterology, Department of Internal Medicine, University Hospital Ulm, Albert-Einstein-Allee 23, 89081 Ulm, Germany
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Klaus J, Haenle MM, Schröter C, Adler G, von Boyen G, Reinshagen M, von Tirpitz C. A single dose of intravenous zoledronate prevents glucocorticoid therapy-associated bone loss in acute flare of Crohn's disease, a randomized controlled trial. Am J Gastroenterol 2011; 106:786-93. [PMID: 21386830 DOI: 10.1038/ajg.2011.59] [Citation(s) in RCA: 11] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES To assess the effectiveness and safety of zoledronate (ZOL) in preventing glucocorticoid therapy-associated bone loss in patients with acute flare of Crohn's disease (CD) in a randomized, double-blind, placebo-controlled trial. METHODS Forty CD patients starting a glucocorticoid therapy (60 mg prednisolone per day) for acute flare (CD activity index (CDAI) >220) were randomized to compare the effect of ZOL (4 mg intravenous, n=20) or placebo (n=20) on change in lumbar bone mineral density (BMD). All patients received calcium citrate (800 mg) and colecalciferol (1,000 IU) daily. Dual energy X-ray absorptiometry (DXA) of the lumbar spine (L1-L4) was performed at baseline and day 90. Follow-up examinations at day 1/7/14/30 and 90 included laboratory tests and adverse event/serious adverse events reports. RESULTS Thirty-six patients were available for per-protocol analysis. With placebo (n=18), a decrease in BMD was seen (T-score: -0.98 ± 0.8, day 0 and -1.25 ± 0.77, day 90, P=0.06), with ZOL (n=18) BMD increased (-1.15 ± 1.02, day 0 and -0.74 ± 1.09, day 90, P=0.03). The change in BMD under placebo (-0.26 ± 0.21) vs. ZOL (+0.41 ± 0.19) was highly significant (P=0.006). In all, 14 out of 18 patients with ZOL had an increase in BMD (+0.64 ± 0.48), 12 of 18 with placebo a decrease (-0.50 ± 0.39). Changes of clinical findings and laboratory results of inflammation (leukocytes, platelets, and C-reactive protein) were the same in- and between-groups throughout the study. With ZOL, serum bone degradation marker β-Cross-Laps decreased. Study medication was safe and well tolerated. CONCLUSIONS ZOL is effective in preventing glucocorticoid therapy-induced bone loss in patients with acute flare of CD and should be considered whenever a glucocorticoid therapy is started in CD patients.
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Affiliation(s)
- Jochen Klaus
- Department of Internal Medicine I, University of Ulm, Ulm, Germany.
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Kulaksiz H, Strnad P, Römpp A, von Figura G, Barth T, Esposito I, Schirmacher P, Henne-Bruns D, Adler G, Stiehl A. A novel method of forceps biopsy improves the diagnosis of proximal biliary malignancies. Dig Dis Sci 2011; 56:596-601. [PMID: 21221795 DOI: 10.1007/s10620-010-1535-4] [Citation(s) in RCA: 9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Accepted: 12/16/2010] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIMS Tissue specimen collection represents a cornerstone in diagnosis of proximal biliary tract malignancies offering great specificity, but only limited sensitivity. To improve the tumor detection rate, we developed a new method of forceps biopsy and compared it prospectively with endoscopic transpapillary brush cytology. PATIENTS AND METHODS 43 patients with proximal biliary stenoses, which were suspect for malignancy, undergoing endoscopic retrograde cholangiography were prospectively recruited and subjected to both biopsy [using a double-balloon enteroscopy (DBE) forceps under a guidance of a pusher and guiding catheter with guidewire] and transpapillary brush cytology. The cytological/histological findings were compared with the final clinical diagnosis. RESULTS 35 out of 43 patients had a malignant disease (33 cholangiocarcinomas, 1 hepatocellular carcinoma, 1 gallbladder carcinoma). The sensitivity of cytology and biopsy in these patients was 49 and 69%, respectively. The method with DBE forceps allowed a pinpoint biopsy of the biliary stenoses. Both methods had 100% specificity, and, when combined, 80% of malignant processes were detected. All patients with non-malignant conditions were correctly assigned by both methods. No clinically relevant complications were observed. CONCLUSIONS The combination of forceps biopsy and transpapillary brush cytology is safe and offers superior detection rates compared to both methods alone, and therefore represents a promising approach in evaluation of proximal biliary tract processes.
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Affiliation(s)
- Hasan Kulaksiz
- Department of Internal Medicine I, Center for Internal Medicine, University Medical Center Ulm, Ulm, Germany.
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Kleger A, Loebnitz C, Pusapati GV, Armacki M, Müller M, Tümpel S, Illing A, Hartmann D, Brunner C, Liebau S, Rudolph KL, Adler G, Seufferlein T. Protein kinase D2 is an essential regulator of murine myoblast differentiation. PLoS One 2011; 6:e14599. [PMID: 21298052 PMCID: PMC3029294 DOI: 10.1371/journal.pone.0014599] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2010] [Accepted: 12/18/2010] [Indexed: 11/27/2022] Open
Abstract
Muscle differentiation is a highly conserved process that occurs through the activation of quiescent satellite cells whose progeny proliferate, differentiate, and fuse to generate new myofibers. A defined pattern of myogenic transcription factors is orchestrated during this process and is regulated via distinct signaling cascades involving various intracellular signaling pathways, including members of the protein kinase C (PKC) family. The protein kinase D (PKD) isoenzymes PKD1, -2, and -3, are prominent downstream targets of PKCs and phospholipase D in various biological systems including mouse and could hence play a role in muscle differentiation. In the present study, we used a mouse myoblast cell line (C2C12) as an in vitro model to investigate the role of PKDs, in particular PKD2, in muscle stem cell differentiation. We show that C2C12 cells express all PKD isoforms with PKD2 being highly expressed. Furthermore, we demonstrate that PKD2 is specifically phosphorylated/activated during the initiation of mouse myoblast differentiation. Selective inhibition of PKCs or PKDs by pharmacological inhibitors blocked myotube formation. Depletion of PKD2 by shRNAs resulted in a marked inhibition of myoblast cell fusion. PKD2-depleted cells exhibit impaired regulation of muscle development-associated genes while the proliferative capacity remains unaltered. Vice versa forced expression of PKD2 increases myoblast differentiation. These findings were confirmed in primary mouse satellite cells where myotube fusion was also decreased upon inhibition of PKDs. Active PKD2 induced transcriptional activation of myocyte enhancer factor 2D and repression of Pax3 transcriptional activity. In conclusion, we identify PKDs, in particular PKD2, as a major mediator of muscle cell differentiation in vitro and thereby as a potential novel target for the modulation of muscle regeneration.
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Affiliation(s)
- Alexander Kleger
- Department of Internal Medicine I, University of Ulm, Ulm, Germany
- Institute of Molecular Medicine and Max-Planck-Research Department on Stem Cell Aging, University of Ulm, Ulm, Germany
| | | | | | - Milena Armacki
- Department of Internal Medicine I, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Martin Müller
- Department of Internal Medicine I, University of Ulm, Ulm, Germany
| | - Stefan Tümpel
- Institute of Molecular Medicine and Max-Planck-Research Department on Stem Cell Aging, University of Ulm, Ulm, Germany
| | - Anett Illing
- Institute of Molecular Medicine and Max-Planck-Research Department on Stem Cell Aging, University of Ulm, Ulm, Germany
| | - Daniel Hartmann
- Institute of Molecular Medicine and Max-Planck-Research Department on Stem Cell Aging, University of Ulm, Ulm, Germany
- Department of Surgery, Technical University Munich, Munich, Germany
| | - Cornelia Brunner
- Institute of Physiological Chemistry, University of Ulm, Ulm, Germany
| | - Stefan Liebau
- Institute of Anatomy and Cell Biology, University of Ulm, Ulm, Germany
| | - Karl L. Rudolph
- Institute of Molecular Medicine and Max-Planck-Research Department on Stem Cell Aging, University of Ulm, Ulm, Germany
| | - Guido Adler
- Department of Internal Medicine I, University of Ulm, Ulm, Germany
| | - Thomas Seufferlein
- Department of Internal Medicine I, Martin Luther University Halle-Wittenberg, Halle, Germany
- * E-mail:
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Strnad P, Schwarz P, Rasenack MCD, Kucukoglu O, Habib RI, Heuberger D, Ehehalt R, Müller MW, Stiehl A, Adler G, Kulaksiz H. Hepcidin is an antibacterial, stress-inducible peptide of the biliary system. PLoS One 2011; 6:e16454. [PMID: 21283681 PMCID: PMC3025980 DOI: 10.1371/journal.pone.0016454] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2010] [Accepted: 12/20/2010] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND/AIMS Hepcidin (gene name HAMP), an IL-6-inducible acute phase peptide with antimicrobial properties, is the key negative regulator of iron metabolism. Liver is the primary source of HAMP synthesis, but it is also produced by other tissues such as kidney or heart and is found in body fluids such as urine or cerebrospinal fluid. While the role of hepcidin in biliary system is unknown, a recent study demonstrated that conditional gp130-knockout mice display diminished hepcidin levels and increased rate of biliary infections. METHODS Expression and localization of HAMP in biliary system was analyzed by real time RT-PCR, in-situ hybridization, immunostaining and -blotting, while prohepcidin levels in human bile were determined by ELISA. RESULTS Hepcidin was detected in mouse/human gallbladder and bile duct epithelia. Biliary HAMP is stress-inducible, in that it is increased in biliary cell lines upon IL-6 stimulation and in gallbladder mucosa of patients with acute cholecystitis. Hepcidin is also present in the bile and elevated prohepcidin levels were observed in bile of primary sclerosing cholangitis (PSC) patients with concurrent bacterial cholangitis compared to PSC subjects without bacterial infection (median values 22.3 vs. 8.9; p = 0.03). In PSC-cholangitis subjects, bile prohepcidin levels positively correlated with C-reactive protein and bilirubin levels (r = 0.48 and r = 0.71, respectively). In vitro, hepcidin enhanced the antimicrobial capacity of human bile (p<0.05). CONCLUSION Hepcidin is a stress-inducible peptide of the biliary epithelia and a potential marker of biliary stress. In the bile, hepcidin may serve local functions such as protection from bacterial infections.
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Affiliation(s)
- Pavel Strnad
- Department of Internal Medicine I, University Hospital Ulm, Ulm, Germany
| | - Peggy Schwarz
- Department of Internal Medicine I, University Hospital Ulm, Ulm, Germany
| | | | - Ozlem Kucukoglu
- Department of Internal Medicine I, University Hospital Ulm, Ulm, Germany
| | - Rayan I. Habib
- Department of Internal Medicine I, University Hospital Ulm, Ulm, Germany
| | - Dominik Heuberger
- Department of Internal Medicine, Division of Gastroenterology, University Hospital Heidelberg, Heidelberg, Germany
| | - Robert Ehehalt
- Department of Internal Medicine, Division of Gastroenterology, University Hospital Heidelberg, Heidelberg, Germany
| | - Michael W. Müller
- Department of General and Visceral Surgery, Medical Center Stuttgart, Stuttgart, Germany
| | - Adolf Stiehl
- Department of Internal Medicine, Division of Gastroenterology, University Hospital Heidelberg, Heidelberg, Germany
| | - Guido Adler
- Department of Internal Medicine I, University Hospital Ulm, Ulm, Germany
| | - Hasan Kulaksiz
- Department of Internal Medicine I, University Hospital Ulm, Ulm, Germany
- Department of Internal Medicine, Division of Gastroenterology, University Hospital Heidelberg, Heidelberg, Germany
- * E-mail:
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Klaus J, Reinshagen M, Herdt K, Schröter C, Adler G, Boyen GBTV, Tirpitz CV. Bones and Crohn’s: No benefit of adding sodium fluoride or ibandronate to calcium and vitamin D. World J Gastroenterol 2011; 17:334-42. [PMID: 21253392 PMCID: PMC3022293 DOI: 10.3748/wjg.v17.i3.334] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2010] [Revised: 10/15/2010] [Accepted: 10/22/2010] [Indexed: 02/06/2023] Open
Abstract
AIM: To compare the effect of calcium and cholecalciferol alone and along with additional sodium fluoride or ibandronate on bone mineral density (BMD) and fractures in patients with Crohn’s disease (CD).
METHODS: Patients (n =148) with reduced BMD (T-score < -1) were randomized to receive cholecalciferol (1000 IU) and calcium citrate (800 mg) daily alone(group A, n = 32) or along with additional sodium fluoride (25 mg bid) (group B, n = 62) or additional ibandronate (1 mg iv/3-monthly) (group C, n = 54). Dual energy X-ray absorptiometry of the lumbar spine (L1-L4) and proximal right femur and X-rays of the spine were performed at baseline and after 1.0, 2.25 and 3.5 years. Fracture-assessment included visual reading of X-rays and quantitative morphometry of vertebral bodies (T4-L4).
RESULTS: One hundred and twenty three (83.1%) patients completed the first year for intention-to-treat (ITT) analysis. Ninety two (62.2%) patients completed the second year and 71 (47.8%) the third year available for per-protocol (PP) analysis. With a significant increase in T-score of the lumbar spine by +0.28 ± 0.35 [95% confidence interval (CI): 0.162-0.460, P < 0.01], +0.33 ± 0.49 (95% CI: 0.109-0.558, P < 0.01), +0.43 ± 0.47 (95% CI: 0.147-0.708, P < 0.01) in group A, +0.22 ± 0.33 (95% CI: 0.125-0.321, P < 0.01); +0.47 ± 0.60 (95% CI: 0.262-0.676, P < 0.01), +0.51 ± 0.44 (95% CI: 0.338-0.682, P < 0.01) in group B and +0.22 ± 0.38 (95% CI: 0.111-0.329, P < 0.01), +0.36 ± 0.53 (95% CI: 0.147-0.578, P < 0.01), +0.41 ± 0.48 (95% CI: 0.238-0.576, P < 0.01) in group C, respectively, during the 1.0, 2.25 and 3.5 year periods (PP analysis), no treatment regimen was superior in any in- or between-group analyses. In the ITT analysis, similar results in all in- and between-group analyses with a significant in-group but non-significant between-group increase in T-score of the lumbar spine by 0.38 ± 0.46 (group A, P < 0.01), 0.37 ± 0.50 (group B, P < 0.01) and 0.35 ± 0.49 (group C, P < 0.01) was observed. Follow-up in ITT analysis was still 2.65 years. One vertebral fracture in the sodium fluoride group was detected. Study medication was safe and well tolerated.
CONCLUSION: Additional sodium fluoride or ibandronate had no benefit over calcium and cholecalciferol alone in managing reduced BMD in CD.
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Adler G, Windeler J. [Focus on diagnostic studies]. Z Evid Fortbild Qual Gesundhwes 2011; 105:496-497. [PMID: 21958606 DOI: 10.1016/j.zefq.2011.07.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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von Figura G, Hartmann D, Pauls S, Barth T, Adler G, Henne-Bruns D, Kulaksiz H. Difficult Diagnosis of a Large Cystic Retroperitoneal Tumor Mimicking a Hepatic Origin. Z Gastroenterol 2010; 48:1301-4. [DOI: 10.1055/s-0029-1245550] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zizer E, Beilke S, Bäuerle T, Schilling K, Möhnle U, Adler G, Fischer KD, Wagner M. Loss of Lsc/p115 protein leads to neuronal hypoplasia in the esophagus and an achalasia-like phenotype in mice. Gastroenterology 2010; 139:1344-54. [PMID: 20600037 DOI: 10.1053/j.gastro.2010.06.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Revised: 05/21/2010] [Accepted: 06/10/2010] [Indexed: 12/30/2022]
Abstract
BACKGROUND & AIMS Lsc/p115 originally was described as hematopoietic Ras homologous protein guanine exchange factor (Rho-GEF) regulating leukocyte migration, adhesion, and marginal zone B-cell homeostasis. Here we investigate the expression pattern of lsc/p115 in the gastrointestinal tract and the consequences of lsc/p115 deficiency in lsc/p115-knockout mice. METHODS The phenotype of lsc/p115-deficient mice was analyzed in vivo with small-animal computed tomography scans and esophageal manometry. The morphology and myenteric plexus were evaluated with immunohistochemistry, morphometry, Western blot analyses, and quantitative reverse-transcription polymerase chain reaction. RESULTS lsc/p115 is expressed in the gastrointestinal tract, sparing the segment of the small intestine. Immunohistochemical staining detects lsc/p115 in the muscle layer and the glial fibrillary acidic protein-positive glia in the esophagus. Esophageal manometry uncovers a severe motor dysfunction in lsc/p115-deficient mice. This achalasia-like phenotype is characterized by disturbed peristalsis, hypertension of the lower esophageal sphincter, and impaired relaxation of the lower esophageal sphincter. Lsc/p115-deficient mice develop a progressive dilatation of the esophagus and decrease of the muscle layer. The muscle cell differentiation is not altered in lsc/p115-deficient mice. However, the density of inhibitory and excitatory neurons and glia cells in the myenteric plexus and the muscle layer are reduced in morphometric analyses. This reduced number of glia cells is accompanied by reduced expression of the neurotrophic nerve growth factor. CONCLUSIONS lsc/p115 deficiency results in impaired neuronal innervation and in motor dysfunction recapitulating several aspects of esophageal achalasia. Reduced expression of nerve growth factor and a reduced number of glia cells most likely contribute to this phenotype.
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Affiliation(s)
- Eugen Zizer
- Department of Internal Medicine I, Center of Internal Medicine, University Ulm, Ulm, Germany
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Azoitei N, Pusapati GV, Kleger A, Möller P, Küfer R, Genze F, Wagner M, van Lint J, Carmeliet P, Adler G, Seufferlein T. Protein kinase D2 is a crucial regulator of tumour cell-endothelial cell communication in gastrointestinal tumours. Gut 2010; 59:1316-30. [PMID: 20732914 DOI: 10.1136/gut.2009.206813] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
BACKGROUND Tumour angiogenesis is crucially dependent on the communication between the tumour and the associated endothelium. Protein kinase D (PKD) isoenzymes mediate vascular endothelial growth factor-A (VEGF-A) induced endothelial cell proliferation and migration and are also highly expressed in various tumours. AIM To examine the role of PKDs for tumour proliferation and angiogenesis selectively in pancreatic and gastric tumours and in tumour-associated endothelium in vitro and in vivo. METHODS PKD2 expression in human tumours was determined by immunohistochemistry. The effect of PKD2 depletion in endothelial cells by siRNAs was examined in sprouting assays, the chorioallantois model (CAM) and tumour xenografts. In murine endothelium in vivo PKD2 was knocked-down by splice switching oligonucleotides. Human PKD2 was depleted in xenografts by siRNAs and PKD2-miRs. PKD2 activation by hypoxia and its role for hypoxia-induced NR4/TR3- and VEGF-A promoter activity, expression and secretion was investigated in cell lines. RESULTS PKD2 is expressed in gastrointestinal tumours and in the tumour-associated endothelium. Tumour growth and angiogenesis in the CAM and in tumour xenografts require PKD expression in endothelial cells. Conversely, hypoxia activates PKD2 in pancreatic cancer cells and PKD2 was identified as the major mediator of hypoxia-stimulated VEGF-A promoter activity, expression and secretion in tumour cells. PKD2 depletion in pancreatic tumours inhibited tumour-driven blood vessel formation and tumour growth in the CAM and in orthotopic pancreatic cancer xenografts. CONCLUSION PKD2 regulates hypoxia-induced VEGF-A expression/secretion by tumour cells and VEGF-A stimulated blood vessel formation. PKD2 is a novel, essential mediator of tumour cell-endothelial cell communication and a promising therapeutic target to inhibit angiogenesis in gastrointestinal cancers.
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Affiliation(s)
- Ninel Azoitei
- Department of Internal Medicine 1, Division of Medicine, Martin-Luther-University Halle-Wittenberg, Ernst-Grube-Strasse 40, Halle (Saale), Germany
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Simonis G, Mueller K, Schwarz P, Wiedemann S, Adler G, Strasser RH, Kulaksiz H. The iron-regulatory peptide hepcidin is upregulated in the ischemic and in the remote myocardium after myocardial infarction. Peptides 2010; 31:1786-90. [PMID: 20553779 DOI: 10.1016/j.peptides.2010.05.013] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2010] [Revised: 05/19/2010] [Accepted: 05/19/2010] [Indexed: 12/23/2022]
Abstract
Recent evidence suggests that iron metabolism contributes to the ischemic damage after myocardial infarction. Hepcidin, a recently discovered peptide hormone, regulates iron uptake and metabolism, protecting the body from iron overload. In this study we analyzed the regulation of hepcidin in the heart and blood of rats after myocardial infarction. To induce a myocardial infarction in the rats, left anterior descending coronary artery ligation was performed. After 1-24h, biopsies from the ischemic and the non-ischemic myocardium were taken. In these biopsies, the mRNA levels and the protein expression of hepcidin were analyzed by quantitative RT-PCR and immunoblot analysis, respectively. In parallel, the serum levels of prohepcidin were measured by ELISA. Six hours after myocardial infarction, the hepcidin mRNA expression was temporally upregulated in the ischemic and in the non-ischemic myocardium. The upregulation was specific for hepcidin, since other iron-related genes (hemojuvelin, IREG-1) remained unchanged. Furthermore, the alteration of the hepcidin protein expression in the ischemic area was connected to the level of hepcidin in the serum of the infarcted rats, where hepcidin also raised up. Angiotensin receptor blockade with candesartan did not influence the mRNA regulation of hepcidin. Together, these data show a particular upregulation of the iron-regulatory peptide hepcidin in the ischemic and the non-ischemic myocardium after myocardial infarction. It is speculated that upregulation of hepcidin may reduce iron toxicity and thus infarct size expansion in an infarcted heart.
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Affiliation(s)
- Gregor Simonis
- Department of Medicine and Cardiology, Dresden University of Technology, Heart Center, D-01307 Dresden, Germany
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Adler G. [Future of the German Society of Gastroenterology]. Z Gastroenterol 2010; 48:1113-1116. [PMID: 20835976 DOI: 10.1055/s-0029-1245728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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Adler G, Parczewski M, Czerska E, Loniewska B, Kaczmarczyk M, Gumprecht J, Grzeszczak W, Szybinska A, Mossakowska M, Ciechanowicz A. An age-related decrease in factor V Leiden frequency among Polish subjects. J Appl Genet 2010; 51:337-41. [PMID: 20720309 DOI: 10.1007/bf03208864] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Factor V Leiden (G1691A FV mutation) is a widely acknowledged risk factor of deep vein thrombosis, including pulmonary embolism as the most serious complication. However, its high prevalence of ~5%in the Caucasian population might be related to an unknown evolutionary advantage. It might exert a beneficial effect on the carrier, e.g. protecting women from excessive bleeding during labour or allowing increased survival in severe sepsis or with other inflammatory diseases. The aim of our study was to verify or contradict the hypothesis of a favourable association between the A allele (A1691) and longevity in the Polish population. For this purpose, the G1691A mutation was analyzed by PCR-RFLP in 1016 Poles: 400 neonates (187 female and 312 male), 184 healthy adults (129 female and 55 male), and 432 long-lived individuals (age ≥95 years: 343 women and 89 men). Frequencies of G1691A carriers and the A1691 allele in long-lived individuals (0.2% and 0.1%, respectively) were significantly lower than in neonates (4.2% and 2.2%, respectively) and adults (3.3% and 1.6%). The frequency of the G1691A factor V Leiden mutation decreased with age, which indicates a shorter survival time among A1691 allele carriers in the Polish population.
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Affiliation(s)
- G Adler
- Department of Laboratory Diagnostics & Molecular Medicine, Pomeranian Medical University, Powstancow Wlkp. 72, 70-111 Szczecin, Poland.
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Juchems M, Römpp A, Kestler HA, Ernst A, Brambs HJ, Adler G, Aschoff A, Wagner M. [A prospective comparison of video colonoscopy and CT colonography in asymptomatic patients screened for colorectal cancer]. Dtsch Med Wochenschr 2010; 135:1656-61. [PMID: 20721840 DOI: 10.1055/s-0030-1262457] [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: 10/19/2022]
Abstract
BACKGROUND AND OBJECTIVE It was the aim of this study to compare the sensitivity and specificity of low-dose CT colonography (CTC) with that of optical colonoscopy (OC) in asymptomatic patients undergoing these tests in a screening program for colonic cancer. PATIENTS AND METHODS 58 patients (mean age 62.6 years) were included. They underwent low dose CTC and, immediately afterwards, colonoscopy. The colonoscopists were unaware of the CTC findings. A "second look" was performed if a lesion seen in CTC had been missed in the first colonoscopy. RESULTS A total of 150 lesions were detected and histologically confirmed. 136 were found to be polypoid lesions, classified as either hyperplastic polyps (n = 66) or polyps with intraepithelial neoplasia (n = 70). In the per-patient analysis only 22.4 % of patients had no polypoid lesion, 27.6 % had at least one hyperplastic and 50.0 % had at least one adenomatous lesion. Sensitivity for adenomas of all size categories was calculated 55.7 % for CTC and 92.9 % for OC. This marked difference (both for the detection of individual lesions and the per-patient analyses) does not reach significance in the two-sided McNemar test. CONCLUSIONS There was a high prevalence of lesions with intraepithelial neoplasia in this screening group. OC had a higher sensitivity than CTC in the detection of lesions smaller than 10 mm.
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Affiliation(s)
- M Juchems
- Klinik für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Ulm, Ulm
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Wichert GV, Adler G, Seufferlein T. Der Weg in die personalisierte Therapie von gastrointestinalen Tumorerkrankungen – Möglichkeiten und Limitationen. Dtsch Med Wochenschr 2010; 135:1687-91. [DOI: 10.1055/s-0030-1262461] [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: 10/19/2022]
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