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Pachankis J, Hatzenbuehler ML, Bränström R, Schmidt AJ, Berg RC, Jonas K, Pitoňák M, Baros S, Weatherburn P. Structural stigma and sexual minority men’s depression and suicidality: A multi-level examination of mechanisms and mobility across 48 countries. Eur J Public Health 2022. [DOI: 10.1093/eurpub/ckac129.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Sexual minority men are at greater risk of depression and suicidality than heterosexuals. Stigma, the most frequently hypothesized risk factor for this disparity, operates across socioecological levels-structural (e.g., laws), interpersonal (e.g., discrimination), and individual (e.g., self-stigma). However, there is limited data on whether changes in structural stigma, such as when a stigmatized person moves to a lower stigma context, affect mental health, and on the mechanisms underlying this association
Methods
The current study uses data from the 2017/18 European Men-who-have-sex-with-men Internet Survey (n = 123,428), which assessed mental health and psychosocial mediators. We linked these data to an objective indicator of structural stigma related to sexual orientation in respondents’ countries of origin (N = 178) and receiving (N = 48) countries
Results
Among respondents who moved from higher-to-lower structural stigma countries (n = 11,831), longer exposure to the lower structural stigma environments of their receiving countries was associated with a significantly: 1) lower risk of depression and suicidality; 2) lower odds of concealment, internalized homonegativity, and social isolation; and 3) smaller indirect effect of structural stigma on mental health through these mediators.
Conclusions
This study provides evidence that structural stigma is associated with the mental health of sexual minority men, both through proximal experiences and as a function of length of exposure to structurally diverse contexts, at least for those who move higher-to-lower structural stigma contexts. Findings suggest the importance of routinely assessing life-course structural influences on mental health and deploying interventions to address those influences.
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Affiliation(s)
- J Pachankis
- Department of Social and Behavioral Sciences, Yale School of Public Health , New Haven, USA
| | | | - R Bränström
- Department of Clinical Neuroscience, Karolinska Institutet , Stockholm, Sweden
| | - AJ Schmidt
- Department of Public Health, Environments and Society, LSHTM , London, UK
| | - RC Berg
- Department of Community Medicine, University of Tromso , Tromso, Norway
| | - K Jonas
- Faculty of Psychology and Neuroscience, Maastricht University , Maastricht, Netherlands
| | - M Pitoňák
- Centre of Epidemiological and Clinical Research, National Institute of Mental Health , Klecany, Czechia
| | - S Baros
- Institute of Public Health of Serbia, Centre for Diseases Prevention and Control , Belgrade, Serbia
| | - P Weatherburn
- Department of Public Health, Environments and Society, LSHTM , London, UK
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2
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Jonas K, Borys A, Wolkow P, Kopec G. First genetic characteristics of Polish patients with idiopathic pulmonary arterial hypertension. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Pulmonary arterial hypertension (PAH) is a rare, severe disorder of multifactorial origin. Genetic alterations in BMP/SMAD pathways were previously associated with disease development, however the exact role of other genetic factors from BMP/SMAD signalling is still unclear.
Purpose
We aimed to search for known PAH-associated mutations and potential novel variants responsible for disease onset in Polish PAH patients.
Methods
We prospectively recruited 93 consecutive idiopathic PAH patients from a single pulmonary hypertension reference centre between years 2009 and 2020. Eligible patients had pre-capillary pulmonary hypertension with pulmonary vascular resistance >3 Wood units in the absence of other causes of pre-capillary pulmonary hypertension. The presence of large gene rearrangements was analyzed by the Multiplex Ligation-dependent Probe Amplification (MLPA) reactions in the ENG, ACVRL1 and BMPR2 genes (SALSA MLPA Kit, MRC-Holland). We have further sequenced a panel of selected 48 genes from BMP/SMAD and related pathways using next-generation sequencing (SureSelect XT library preparation Kit, Agilent; NextSeq 500 sequencer, Illumina) and assessed causative potential of rare variants (minor allele frequency in non-finish Europeans below 1%) with Mutation Taster web-based tool.
Results
We identified at least one likely-causative variant of investigated genes in 51 (54.8%) subjects. Large genomic rearrangements were found by MLPA in 2 patients in ENG and ACVRL1 (ALK1) genes. We have found mutations in BMPR2 gene in 12 patients (12.5%) from our cohort with most variants present in one sample and 3 variants present in 2 samples. Mutations were located mostly in protein kinase domain (6 variants) and Activin type I and II receptor domain (2 variants). We have found 5 likely pathogenic variants in 6 patients in genes previously associated with PAH other than BMPR2 (SMAD9, KCNA5, KCNK3, EIF2AK4). In total, potentially disease causing mutations in literature-known genes, were present in 18 patients, which accounted for 18.75% of tested cohort. Medium impact variants were also present in KCNA5, TGFBR2, AQP7, BMP6, EIF2AK4, FBP1, NOTCH1, NOTCH3, SMAD7, TBX4, TGFB2, TOPBP1, GDF5, IL6, PPARA, RXRA, KCNK3, KLF4, BMPR1B, ILK, TGFBR1, SMAD9, PPARD and TGFB3 genes. Additionally, in one patient with clinical diagnosis of pulmonary venoocclusive disease we identified an unknown homozygous frameshift variant (p.Phe1523fs/c.4567_4570delTTTG) in exon 35 of EIF2AK4 gene.
Conclusions
We found potentially disease causing mutations in 18,75% Polish patients diagnosed with IPAH most of them were present in BMPR2 gene which is in line with data from other European cohorts. Additionally we found an unknown mutation in the EIF2AK4 gene.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Narodowe Centrum Nauki - National Science Centre
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Affiliation(s)
- K Jonas
- Jagiellonian University Medical College, John Paul II Hospital, Pulmonary Circulation Centre, Department of Cardiac and Vascular Diseases , Krakow , Poland
| | - A Borys
- Jagiellonian University, Center for Medical Genomics OMICRON , Krakow , Poland
| | - P Wolkow
- Jagiellonian University, Center for Medical Genomics OMICRON , Krakow , Poland
| | - G Kopec
- Jagiellonian University Medical College, John Paul II Hospital, Pulmonary Circulation Centre, Department of Cardiac and Vascular Diseases , Krakow , Poland
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Tlhagale M, Liphadzi S, Bhagwan J, Naidoo V, Jonas K, van Vuuren L, Medema G, Andrews L, Béen F, Ferreira ML, Saatci AM, Alpaslan Kocamemi B, Hassard F, Singer AC, Bunce JT, Grimsley JMS, Brown M, Jones DL. Establishment of local wastewater-based surveillance programmes in response to the spread and infection of COVID-19 - case studies from South Africa, the Netherlands, Turkey and England. J Water Health 2022; 20:287-299. [PMID: 36366987 DOI: 10.2166/wh.2022.185] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The COVID-19 pandemic has resulted in over 340 million infection cases (as of 21 January 2022) and more than 5.57 million deaths globally. In reaction, science, technology and innovation communities across the globe have organised themselves to contribute to national responses to COVID-19 disease. A significant contribution has been from the establishment of wastewater-based epidemiological (WBE) surveillance interventions and programmes for monitoring the spread of COVID-19 in at least 55 countries. Here, we examine and share experiences and lessons learnt in establishing such surveillance programmes. We use case studies to highlight testing methods and logistics considerations associated in scaling the implementing of such programmes in South Africa, the Netherlands, Turkey and England. The four countries were selected to represent different regions of the world and the perspective based on the considerable progress made in establishing and implementing their national WBE programmes. The selected countries also represent different climatic zones, economies, and development stages, which influence the implementation of national programmes of this nature and magnitude. In addition, the four countries' programmes offer good experiences and lessons learnt since they are systematic, and cover extensive areas, disseminate knowledge locally and internationally and partnered with authorities (government). The programmes also strengthened working relations and partnerships between and among local and global organisations. This paper shares these experiences and lessons to encourage others in the water and public health sectors on the benefits and value of WBE in tackling SARS-CoV-2 and related future circumstances.
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Affiliation(s)
- M Tlhagale
- Water Research Commission, 4 Daventry St, Lynnwood Manor, Pretoria, South Africa E-mail:
| | - S Liphadzi
- Water Research Commission, 4 Daventry St, Lynnwood Manor, Pretoria, South Africa E-mail: ; Univerisity of Venda, University Rd, Thohoyandou, 0950, South Africa
| | - J Bhagwan
- Water Research Commission, 4 Daventry St, Lynnwood Manor, Pretoria, South Africa E-mail:
| | - V Naidoo
- Water Research Commission, 4 Daventry St, Lynnwood Manor, Pretoria, South Africa E-mail:
| | - K Jonas
- Water Research Commission, 4 Daventry St, Lynnwood Manor, Pretoria, South Africa E-mail:
| | - L van Vuuren
- Water Research Commission, 4 Daventry St, Lynnwood Manor, Pretoria, South Africa E-mail:
| | - G Medema
- KWR, Groningenhaven 7, 3433 PE Nieuwegein, Netherlands
| | - L Andrews
- KWR, Groningenhaven 7, 3433 PE Nieuwegein, Netherlands
| | - F Béen
- KWR, Groningenhaven 7, 3433 PE Nieuwegein, Netherlands
| | - M L Ferreira
- KWR, Groningenhaven 7, 3433 PE Nieuwegein, Netherlands
| | - A M Saatci
- Turkish Water Institute (SUEN), Libadiye Cad. 54 Küçükçamlıca Üsküdar 34696, Istanbul, Turkey
| | - B Alpaslan Kocamemi
- Environmental Engineering Department, Marmara University, Kadıkoy 34722, Istanbul, Turkey
| | - F Hassard
- Cranfield University, Bedfordshire, MK43 0AL, UK; Institute for Nanotechnology and Water Sustainability, University of South Africa, UNISA Science Campus, 1710 Roodepoort, Johannesburg, South Africa
| | - A C Singer
- UK Centre for Ecology and Hydrology, MacLean Building, Benson Ln, Crowmarsh Gifford, Wallingford, OX10 8BB, UK
| | - J T Bunce
- United Kingdom Health Security Agency, Windsor House, Victoria Street, London, SW1H 0LT, UK; Department for Environment, Food and Rural Affairs, Seacole Building, 2 Marsham Street, London SW1P 4DF, UK
| | - J M S Grimsley
- United Kingdom Health Security Agency, Windsor House, Victoria Street, London, SW1H 0LT, UK
| | - M Brown
- United Kingdom Health Security Agency, Windsor House, Victoria Street, London, SW1H 0LT, UK; School of Engineering, Newcastle University, Newcastle-upon-Tyne NE1 7RU, UK
| | - D L Jones
- Environment Centre Wales, Bangor University, Bangor, LL57 2UW, UK
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Nettekoven C, Pieczewski J, Neuschmelting V, Jonas K, Goldbrunner R, Grefkes C, Weiß Lucas C. P 30. Evoking language errors using online paired-pulse TMS – A proof-of-principle study. Clin Neurophysiol 2021. [DOI: 10.1016/j.clinph.2021.02.351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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5
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Nettekoven C, Jonas K, Pieczewski J, Klütsch D, Goldbrunner R, Lucas CW. P91 Paired-pulse TMS and higher-frequent rTMS for mapping of cortical language areas. Clin Neurophysiol 2020. [DOI: 10.1016/j.clinph.2019.12.089] [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: 10/24/2022]
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Magon W, Stepniewski J, Jonas K, Waligora M, Podolec P, Kopec G. P4679Changes in systemic inflammation and endothelial dysfunction after balloon pulmonary angioplasty. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.1061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 02/04/2023] Open
Abstract
Abstract
Introduction
Pulmonary endarterectomy leads to a decrease in systemic inflammation and improvement in endothelial function in patients with chronic thromboembolic pulmonary hypertension (CTEPH). Balloon pulmonary angioplasty (BPA) improves pulmonary hemodynamics in patients with inoperable CTEPH.
Aim
To assess changes in systemic inflammation and endothelial dysfunction after a single BPA session and after completion of the treatment.
Methods
We enrolled consecutive, inoperable CTEPH patients who underwent BPA. Interleukin 6, 10 (IL-6, IL-10), and C-reactive protein (hsCRP) constituted markers of systemic inflammation. Endothelin-1 (ET-1) served as a marker of endothelial dysfunction. Serum concentration of selected markers was assessed in every patient before, 24 hours after the first BPA session and 6 months after completion of the BPA treatment. Age- and sex-matched healthy subjects served as a control group.
Results
We recruited 20 patients with inoperable CTEPH (6 males [30%]), aged 67 [61–74] years in New York Heart Association class III (n=19 [95%]) and II (n=1 [5%]). BPA treatment was completed with a median of 5 [2–8] BPA sessions per patient. Before starting the treatment CTEPH patients, as compared to controls (n=10), had raised serum level of IL-6 (3.82 [2.75 - 6.03] vs. 2.64 [0.88 - 4.75] pg/ml; p=0.04), hsCRP (2.47 [0.93 - 4.27] vs. 1.23 [0.48–3.21] ng/ml; p=0.02) and ET-1 (2.68 [2.24 - 3.64] vs. 1.47 [1.4 - 1.82] pg/ml; p=0.004). There was no difference in IL-10 level.
24 hours after a BPA session we observed an increased level of IL-6, IL-10 and hsCRP. (Tab.) 6 months after completion of the BPA treatment there was a reduced level of IL-6, hsCRP and ET-1 (Tab.)
Table 1. Changes (Δ) in serum concentration of analyzed markers 24 hours after a single BPA session and at 6-months assessment after completion of the BPA treatment (n=20) Initial Δ at 24 hours after single BPA p Δ at 6-months follow-up p ET-1 [pg/ml] 2.68 [2.24; 3.64] −0.2 [−0.5; 0.23] 0.21 −0.47 [−0.96; 0.05] 0.004 IL-6 [pg/ml] 3.82 [2.75; 6.03] 3.67 [1.41; 7.16] 0.008 −0.82 [−3.11; 0.54] 0.04 IL-10 [pg/ml] 0.53 [0.44; 0.58] 0.32 [0.21; 0.87] 0.006 −0.11 [−0.33; 0.14] 0.94 hsCRP [ng/ml] 2.47 [0.93; 4.27] 5.4 [3.96; 10.59] 0.008 −0.36 [−0.94; 0.16] 0.02 ET-1, endothelin 1; hsCRP, C-reactive protein; IL-6, interleukin 6; IL-10, interleukin 10.
Conclusions
Patients with inoperable CTEPH, as compared to healthy controls, exhibit an increased systemic inflammation and endothelial dysfunction, which both improve after completion of the BPA treatment. At short-term follow-up after single BPA session there is an increase in systemic inflammatory response.
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Affiliation(s)
- W Magon
- Jagiellonian University Medical College, Department of Cardiac and Vascular Diseases, Krakow, Poland
| | - J Stepniewski
- Jagiellonian University Medical College, Department of Cardiac and Vascular Diseases, Krakow, Poland
| | - K Jonas
- Jagiellonian University Medical College, Department of Cardiac and Vascular Diseases, Krakow, Poland
| | - M Waligora
- Jagiellonian University Medical College, Department of Cardiac and Vascular Diseases, Krakow, Poland
| | - P Podolec
- Jagiellonian University Medical College, Department of Cardiac and Vascular Diseases, Krakow, Poland
| | - G Kopec
- Jagiellonian University Medical College, Department of Cardiac and Vascular Diseases, Krakow, Poland
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7
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Nettekoven C, Pieczewski J, Neuschmelting V, Jonas K, Grefkes C, Goldbrunner R, Lucas CW. FV 42 Test–retest reliability of high-frequency rTMS for language mapping. Clin Neurophysiol 2019. [DOI: 10.1016/j.clinph.2019.04.647] [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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8
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Nettekoven C, Jonas K, Lichtenstein T, Grefkes C, Goldbrunner R, Lucas CW. PB7. Comparison of three different fMRI paradigms for language mapping. Clin Neurophysiol 2018. [DOI: 10.1016/j.clinph.2018.04.632] [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: 11/25/2022]
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9
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Magon W, Jonas K, Stepniewski J, Waligora M, Podolec P, Kopec G. P2616Structure of organized thrombus and its relation to vessel elastic properties and susceptibility to balloon pulmonary angioplasty in chronic thromboembolic pulmonary hypertension. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2616] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- W Magon
- Department of Cardiac and Vascular Diseases, Faculty of Medicine, Jagiellonian University Medical College at John Paul II Hospital, Krakow, Poland
| | - K Jonas
- Department of Cardiac and Vascular Diseases, Faculty of Medicine, Jagiellonian University Medical College at John Paul II Hospital, Krakow, Poland
| | - J Stepniewski
- Department of Cardiac and Vascular Diseases, Faculty of Medicine, Jagiellonian University Medical College at John Paul II Hospital, Krakow, Poland
| | - M Waligora
- Department of Cardiac and Vascular Diseases, Faculty of Medicine, Jagiellonian University Medical College at John Paul II Hospital, Krakow, Poland
| | - P Podolec
- Department of Cardiac and Vascular Diseases, Faculty of Medicine, Jagiellonian University Medical College at John Paul II Hospital, Krakow, Poland
| | - G Kopec
- Department of Cardiac and Vascular Diseases, Faculty of Medicine, Jagiellonian University Medical College at John Paul II Hospital, Krakow, Poland
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Magon W, Stepniewski J, Waligora M, Jonas K, Podolec P, Kopec G. P2607Changes in elastic properties of pulmonary arterial tree after balloon pulmonary angioplasty. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2607] [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: 11/14/2022] Open
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Jonas K, Waligora M, Stepniewski J, Magon W, Podolec P, Kopec G. P720High-density lipoprotein cholesterol level as a predictor of long-term vasoreactivity in patients with idiopathic pulmonary arterial hypertension. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p720] [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: 11/13/2022] Open
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Waligora M, Kopec G, Jonas K, Tyrka A, Sarnecka A, Miszalski-Jamka T, Urbanczyk-Zawadzka M, Podolec P. P6375Mechanism and prognostic role of qR in V1 in patients with pulmonary arterial hypertension. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6375] [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: 11/14/2022] Open
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13
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Burghaus S, Klingsiek P, Fasching PA, Engel A, Häberle L, Strissel PL, Schmidt M, Jonas K, Strehl JD, Hartmann A, Lermann J, Boosz A, Thiel FC, Müller A, Beckmann MW, Renner SP. Risk Factors for Endometriosis in a German Case-Control Study. Geburtshilfe Frauenheilkd 2011; 71:1073-1079. [PMID: 25253901 DOI: 10.1055/s-0031-1280436] [Citation(s) in RCA: 17] [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: 10/28/2011] [Revised: 11/07/2011] [Accepted: 11/07/2011] [Indexed: 12/31/2022] Open
Abstract
Objective: The etiology of endometriosis is still a research field in which few consistent data are available. Large case-control studies or even cohort studies are rare, and most of the published data are conflicting. The aim of the present study was therefore to examine common epidemiological and endometriosis-specific risk factors in a German case-control study. Design: From 2001 to 2010, a pool of 595 laparoscopically confirmed cases and 475 controls were recruited in a hospital-based setting. After matching for age, 298 cases and 300 controls remained in the pool. Age at menarche, menstrual cycle length, duration of menstrual bleeding, number of pregnancies, live births, miscarriages, use of contraceptive pills, body mass index (BMI), and smoking status were analyzed with logistic regression models predicting endometriosis case-control status. Results: Menstrual cycle length, duration of menstrual bleeding, number of pregnancies, number of miscarriages, and smoking status, as relevant predictors for endometriosis case-control status, were identified as risk factors for endometriosis. Other factors such as age at menarche, number of live births, ever having used contraceptive pills, and BMI were not predictive. Conclusions: This hospital-based case-control study reproduced most of the familiar risk factors. Comparison of this study with others reveals a wide variety of effect sizes and directions of association with risk factors and may increase the information available about the characteristics of the patient population being treated in the relevant hospital setting.
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Affiliation(s)
- S Burghaus
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander University , Erlangen-Nuremberg, Erlangen
| | - P Klingsiek
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander University , Erlangen-Nuremberg, Erlangen
| | - P A Fasching
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander University , Erlangen-Nuremberg, Erlangen
| | - A Engel
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander University , Erlangen-Nuremberg, Erlangen
| | - L Häberle
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander University , Erlangen-Nuremberg, Erlangen
| | - P L Strissel
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander University , Erlangen-Nuremberg, Erlangen
| | - M Schmidt
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander University , Erlangen-Nuremberg, Erlangen
| | - K Jonas
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander University , Erlangen-Nuremberg, Erlangen
| | - J D Strehl
- Institute of Pathology, Erlangen University Hospital, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen
| | - A Hartmann
- Institute of Pathology, Erlangen University Hospital, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen
| | - J Lermann
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander University , Erlangen-Nuremberg, Erlangen
| | - A Boosz
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander University , Erlangen-Nuremberg, Erlangen
| | - F C Thiel
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander University , Erlangen-Nuremberg, Erlangen
| | - A Müller
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander University , Erlangen-Nuremberg, Erlangen
| | - M W Beckmann
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander University , Erlangen-Nuremberg, Erlangen
| | - S P Renner
- Department of Gynecology and Obstetrics, Erlangen University Hospital, Friedrich-Alexander University , Erlangen-Nuremberg, Erlangen
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Jonas K, Brauer DJ, Krueger C, Roberts PJ, Tsay YH. "Side-on" dinitrogen-transition metal complexes. The molecular structure of {C6H5[Na.O(C2H5)2]2[(C6H5)2Ni]2N2NaLi6(OC2H5)4.O(C2H5)2}2. J Am Chem Soc 2002. [DOI: 10.1021/ja00417a013] [Citation(s) in RCA: 99] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Webb HM, Ruddock LW, Marchant RJ, Jonas K, Klappa P. Interaction of the periplasmic peptidylprolyl cis-trans isomerase SurA with model peptides. The N-terminal region of SurA id essential and sufficient for peptide binding. J Biol Chem 2001; 276:45622-7. [PMID: 11546789 DOI: 10.1074/jbc.m107508200] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [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: 11/06/2022] Open
Abstract
One of the rate-limiting steps in protein folding has been shown to be the cis-trans isomerization of proline residues, which is catalyzed by a range of peptidylprolyl cis-trans isomerases. To characterize the interaction between model peptides and the periplasmic peptidylprolyl cis-trans isomerase SurA from E. coli, we employed a chemical cross-linking strategy that has been used previously to elucidate the interaction of substrates with other folding catalysts. The interaction between purified SurA and model peptides was significant in that it showed saturation and was abolished by denaturation of SurA; however the interaction was independent of the presence of proline residues in the model peptides. From results obtained by limited proteolysis we conclude that an N-terminal fragment of SurA, comprising 150 amino acids that do not contain the active sites involved in the peptidylprolyl cis-trans isomerization, is essential for the binding of peptides by SurA. This was confirmed by probing the interaction of the model peptide with the recombinant N-terminal fragment, expressed in Escherichia coli. Hence we propose that, similar to protein disulfide isomerase and other folding catalysts, SurA exhibits a modular architecture composed of a substrate binding domain and distinct catalytically active domains.
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Affiliation(s)
- H M Webb
- University of Kent, Canterbury CT2 7NJ, United Kingdom
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Prange H, Jonas K, Gottschalk C, Discher U, Ribbeck E, Mewes W. [Peracute mortality in common cranes (Grus grus)]. Berl Munch Tierarztl Wochenschr 2000; 113:289-94. [PMID: 10994255] [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: 02/17/2023]
Abstract
Out of a nonbreeding group of cranes, 10 birds died peracutely at the end of April 1998. The pathological investigation showed changes in the intestine, liver and kidneys caused probably by an intoxication; but corresponding analyses did not result in a specified poison. The proof of E. coli, Cl. perfringens and Campylobacter jejuni is to be interpreted as a subordinate result. 7 of 8 cranes had a low to high infestation with endoparasites (Porrocaeum spp., Eimeria pusilla, Echinostoma spp.). 5 of 8 birds showed leaness, possibly as a result of the migration exertion. Further on, the analysis results of a 9th crane found at another place are included in this paper.
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Affiliation(s)
- H Prange
- Institut für Tierzucht und Tierhaltung mit Tierklinik, Martin-Luther-Universität Halle-Wittenberg
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Kozek-Langenecker SA, Marhofer P, Jonas K, Macik T, Urak G, Semsroth M. Cardiovascular criteria for epidural test dosing in sevoflurane- and halothane-anesthetized children. Anesth Analg 2000; 90:579-83. [PMID: 10702441 DOI: 10.1097/00000539-200003000-00016] [Citation(s) in RCA: 119] [Impact Index Per Article: 5.0] [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: 11/25/2022]
Abstract
UNLABELLED This study was designed to determine the detectability of a simulated IV test dose in children during administration of general anesthesia by using heart rate (HR), systolic blood pressure (SBP), and T wave criterion. Forty-two children (0.5-8 yr old) received an IV injection containing epinephrine 0.5 microg/kg and another IV injection containing saline during either halothane or sevoflurane anesthesia administration at 1.0 minimum alveolar concentration in nitrous oxide. A positive test response was defined as a change in T wave amplitude >/=25%, SBP increase >/=15 mm Hg, and HR increase >/=10 bpm. By using the T wave, SBP, and HR criteria, a positive response rate to epinephrine was 100%, 95%, and 71%, respectively, during sevoflurane, and 90%, 71%, and 71%, respectively, during halothane anesthesia administration. These data suggest that the T wave criterion is superior to conventional hemodynamic criteria, and that sevoflurane attenuates T wave and SBP responses less than halothane; however, chronotropic responses are similar to halothane. IMPLICATIONS We found a greater reliability of the T wave criterion over conventional hemodynamic criteria for detecting intravascular injection of a simulated epidural test dose. Sevoflurane may increase the likelihood of recognition of an accidental intravascular injection of epinephrine-containing solutions in clinical practice compared with halothane.
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Affiliation(s)
- S A Kozek-Langenecker
- Departments of Anesthesiology and Intensive Care B, University of Vienna, School of Medicine, Vienna, Austria
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Abstract
The present study investigates whether news about suicides of prominent persons evokes an imitative effect. To this end, daily overall suicide frequencies of a German federal state, Baden-Württemberg, were examined for the years 1968 to 1980 and were related to prominent suicides that were publicized in major newspapers. Data were analysed quasi-experimentally and by means of a time series regression analysis. These methods yielded significant or marginally significant increases, respectively, for the week following the news. Alternative social psychological explanations were examined, and possible statistical artifacts were taken into account. The results are on the whole consistent with the assumption of an imitative effect.
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Affiliation(s)
- K Jonas
- Department of Psychology, University of Tübingen, Germany
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Fraher LJ, Hodsman AB, Jonas K, Saunders D, Rose CI, Henderson JE, Hendy GN, Goltzman D. A comparison of the in vivo biochemical responses to exogenous parathyroid hormone-(1-34) [PTH-(1-34)] and PTH-related peptide-(1-34) in man. J Clin Endocrinol Metab 1992; 75:417-23. [PMID: 1322424 DOI: 10.1210/jcem.75.2.1322424] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [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: 12/26/2022]
Abstract
PTH-related peptide (PTHrP) is one of the etiological factors associated with hypercalcemia of malignancy in humans and rodents. In both in vivo and in vitro animal systems its actions mimic those of PTH; however, its bioactivity in humans has not previously been assessed. Therefore, we compared the actions of the synthetic human (h) analogs hPTHrP-(1-34) and hPTH-(1-34) when given by iv infusion to 15 healthy subjects, aged 25 +/- 3 yr. Three 12-h test infusions were given to each subject in the order: hPTH-(1-34) at a dose of 8 pmol/kg.h, an equimolar dose (8 pmol/kg.h) of PTHrP-(1-34) (low dose), and a 10-fold higher dose (80 pmol/kg.h) of hPTHrP-(1-34) (high dose). PTH infusion resulted in significant increases from basal values in serum total ionized calcium, urinary phosphate and cAMP, and serum 1,25-dihydroxyvitamin D3 [1,25-(OH)2d3]. No significant increases from basal values in any of these variables were observed during low dose PTHrP infusion. However, a 10-fold higher dose of PTHrP significantly increased serum calcium from 2.36 +/- 0.07 to 2.63 +/- 0.16 mmol/L (P less than 0.003), ionized calcium from 1.22 +/- 0.03 to 1.39 +/- 0.09 mmol/L (P less than 0.003), urinary phosphate from 0.21 +/- 0.19 to 0.31 +/- 0.16 mmol/L glomerular filtrate (P less than 0.05), urinary cAMP from 37 +/- 18 to 53 +/- 28 nmol/L glomerular filtrate (P less than 0.01), and serum 1,25-(OH)2D3 from 29.8 +/- 12.1 to 46.0 +/- 20.3 pmol/L (P less than 0.01). For each variable these changes were statistically equivalent to the increases observed during PTH infusion. The molar concentrations of circulating immunoreactive PTH-(1-34) and PTHrP-(1-34) (at the higher dose) achieved during infusion were at a ratio of 1:3. These results suggest that the in vivo actions of synthetic hPTHrP-(1-34) are comparable to those of hPTH-(1-34), but its biological activity after infusion may be less than that of hPTH-(1-34). Moreover, the increased concentrations of serum 1,25-(OH)2D3 observed with administration of hPTHrP-(1-34) are unlike the changes seen in hypercalcemia of malignancy in which levels of this vitamin D metabolite are frequently depressed.
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Affiliation(s)
- L J Fraher
- Department of Medicine, Lawson Research Institute, St. Joseph's Health Centre, London, Ontario, Canada
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Jolly P, Jonas K, Krüger C, Tsay YH. The preparation, reactions and structure of bis[bis(tricyclohexylphosphine)nickel] dinitrogen, {[(C6H11)3P]2Ni}2N2. J Organomet Chem 1971. [DOI: 10.1016/s0022-328x(00)80809-8] [Citation(s) in RCA: 131] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Jonas K. [Determination of minerals in urine--methods and importance of early detection and diagnosis of malnutrition in dairy cows]. Monatsh Veterinarmed 1971; 26:441-5. [PMID: 5568920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Jonas K. Organometallic compounds. K. Jonas. Von M. L. H. Green und K. Wade. Vol II: The Transition Elements. Von M. L. Green. Methuen and Co., Ltd., London 1968. 3. Aufl., XIII, 376 S., 86 Abb., 31 Tab., £ 5. Angew Chem Int Ed Engl 1969. [DOI: 10.1002/ange.19690810419] [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: 11/09/2022]
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Jonas K. Book Review: Organometallic Compounds. By G. E. Coates, M. L. H. Green, and K. Wade. Angew Chem Int Ed Engl 1969. [DOI: 10.1002/anie.196901552] [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: 11/12/2022]
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