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Pérez-Tanoira R, Tamarit MDP, Montaña AMV, Carmena D, Köster P, Górgolas M, Fortes Alen JR, Cabello-Úbeda A, Prieto-Pérez L. Increased Prevalence of Symptomatic Human Intestinal Spirochetosis in MSM with High-Risk Sexual Behavior in a Cohort of 165 Individuals. Trop Med Infect Dis 2023; 8:tropicalmed8050250. [PMID: 37235298 DOI: 10.3390/tropicalmed8050250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/22/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
Human intestinal spirochetosis (HIS) can cause gastrointestinal symptoms, although asymptomatic infections have been described. Individuals from low-income countries, people living with HIV, and men who have sex with men (MSM) show increased risk. A retrospective review of all patients diagnosed with HIS (n = 165) between January 2013 and October 2020 at a tertiary hospital in Madrid, Spain, was performed to assess risk factors for symptomatic HIS, symptoms, and response to treatment. Most patients were male (n = 156; 94.5%), 86.7% were MSM, and 23.5% practiced chemsex, of whom most were symptomatic (p = 0.039). Most patients (78.4%) reported unprotected oral-anal intercourse. A total of 124 (81.1%) were symptomatic; diarrhea was the most common complaint (68.3%). Multivariable regression showed increased odds of symptoms associated with age under 41 (odds ratio 5.44, 95% CI 1.87-15.88; p = 0.002). Colonoscopy was normal in 153 (92.7%). Furthermore, 66.7% presented previous or concomitant sexually transmitted diseases (STDs). Among the patients, 102 underwent testing for other gastrointestinal pathogens, with positive results in 20 (19.6%). All symptomatic patients without concomitant gastrointestinal infection presenting improvement on follow-up (42 of 53) had received either metronidazole or doxycycline (p = 0.049). HIS should be considered as a cause of chronic diarrhea in MSM with high-risk sexual behavior after other causes have been ruled out; treatment with metronidazole is recommended. Coinfection with other STDs is common.
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Affiliation(s)
- Ramón Pérez-Tanoira
- Department of Microbiology, Príncipe de Asturias University Hospital, 28805 Alcalá de Henares, Spain
- Department of Biomedicine and Biotechnology, University of Alcalá, 28040 Madrid, Spain
| | | | | | - David Carmena
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, Health Institute Carlos III, Majadahonda, 28040 Madrid, Spain
| | - Pamela Köster
- Parasitology Reference and Research Laboratory, Spanish National Centre for Microbiology, Health Institute Carlos III, Majadahonda, 28040 Madrid, Spain
| | - Miguel Górgolas
- Department of Infectious Diseases, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain
| | - José R Fortes Alen
- Department of Pathology, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain
| | | | - Laura Prieto-Pérez
- Department of Infectious Diseases, IIS-Fundación Jiménez Díaz, 28040 Madrid, Spain
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Scheumann J, Köster P, Rausch M, Benk C, Maier S, Neudorf S, Diel P, Grundmann S, Schibilsky D, Beyersdorf F, Bothe W. A Novel Adapter Allows Short-Term LVAD Support through the Left-Ventricular Apex without Cardiopulmonary Bypass in Healthy and Failing Pig Hearts. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.778] [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] Open
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Köster P, Wallrad L, Edel KH, Faisal M, Alatar AA, Kudla J. The battle of two ions: Ca 2+ signalling against Na + stress. Plant Biol (Stuttg) 2019; 21 Suppl 1:39-48. [PMID: 29411929 DOI: 10.1111/plb.12704] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 01/30/2018] [Indexed: 05/22/2023]
Abstract
Soil salinity adversely affects plant growth, crop yield and the composition of ecosystems. Salinity stress impacts plants by combined effects of Na+ toxicity and osmotic perturbation. Plants have evolved elaborate mechanisms to counteract the detrimental consequences of salinity. Here we reflect on recent advances in our understanding of plant salt tolerance mechanisms. We discuss the embedding of the salt tolerance-mediating SOS pathway in plant hormonal and developmental adaptation. Moreover, we review newly accumulating evidence indicating a crucial role of a transpiration-dependent salinity tolerance pathway, that is centred around the function of the NADPH oxidase RBOHF and its role in endodermal and Casparian strip differentiation. Together, these data suggest a unifying and coordinating role for Ca2+ signalling in combating salinity stress at the cellular and organismal level.
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Affiliation(s)
- P Köster
- Institut für Biologie und Biotechnologie der Pflanzen, WWU Münster, Münster, Germany
| | - L Wallrad
- Institut für Biologie und Biotechnologie der Pflanzen, WWU Münster, Münster, Germany
| | - K H Edel
- Institut für Biologie und Biotechnologie der Pflanzen, WWU Münster, Münster, Germany
| | - M Faisal
- Department of Botany & Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - A A Alatar
- Department of Botany & Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - J Kudla
- Institut für Biologie und Biotechnologie der Pflanzen, WWU Münster, Münster, Germany
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Manishankar P, Wang N, Köster P, Alatar AA, Kudla J. Calcium Signaling during Salt Stress and in the Regulation of Ion Homeostasis. J Exp Bot 2018; 69:5003005. [PMID: 29800460 DOI: 10.1093/jxb/ery201] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Indexed: 05/20/2023]
Abstract
Soil composition largely defines the living conditions of plants and represents one of their most relevant, dynamic and complex environmental cues. The effective concentrations of many either tolerated or essential ions and compounds in the soil usually differ from the optimum that would be most suitable for plants. In this regard, salinity - caused by excess of NaCl - represents a widespread adverse growth condition but also shortage of ions like K+, NO3- and Fe2+ restrains plant growth. During the past years many components and mechanisms that function in the sensing and establishment of ion homeostasis have been identified and characterized. Here, we reflect on recent insights that extended our understanding of components and mechanisms, which govern and fine-tune plant salt stress tolerance and ion homeostasis. We put special emphasis on mechanisms that allow for interconnection of the salt overly sensitivity pathway with plant development and discuss newly emerging functions of Ca2+ signaling in salinity tolerance. Moreover, we review and discuss accumulating evidence for a central and unifying role of Ca2+ signaling and Ca2+ dependent protein phosphorylation in regulating sensing, uptake, transport and storage processes of various ions. Finally, based on this cross-field inventory, we deduce emerging concepts and arising questions for future research.
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Affiliation(s)
- P Manishankar
- Institut für Biologie und Biotechnologie der Pflanzen, WWU Münster, Münster, Germany
| | - N Wang
- Institut für Biologie und Biotechnologie der Pflanzen, WWU Münster, Münster, Germany
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, China
| | - P Köster
- Institut für Biologie und Biotechnologie der Pflanzen, WWU Münster, Münster, Germany
| | - A A Alatar
- Department of Botany & Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - J Kudla
- Institut für Biologie und Biotechnologie der Pflanzen, WWU Münster, Münster, Germany
- Department of Botany & Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
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Labate L, Köster P, Levato T, Gizzi LA. A novel technique for single-shot energy-resolved 2D x-ray imaging of plasmas relevant for the inertial confinement fusion. Rev Sci Instrum 2012; 83:103504. [PMID: 23126763 DOI: 10.1063/1.4759135] [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] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
A novel x-ray diagnostic of laser-fusion plasmas is described, allowing 2D monochromatic images of hot, dense plasmas to be obtained in any x-ray photon energy range, over a large domain, on a single-shot basis. The device (named energy-encoded pinhole camera) is based upon the use of an array of many pinholes coupled to a large area CCD camera operating in the single-photon mode. The available x-ray spectral domain is only limited by the quantum efficiency of scientific-grade x-ray CCD cameras, thus extending from a few keV up to a few tens of keV. Spectral 2D images of the emitting plasma can be obtained at any x-ray photon energy provided that a sufficient number of photons had been collected at the desired energy. Results from recent inertial confinement fusion related experiments will be reported in order to detail the new diagnostic.
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Affiliation(s)
- L Labate
- Intense Laser Irradiation Laboratory, Istituto Nazionale di Ottica, Consiglio Nazionale delle Ricerche, Pisa, Italy.
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Zamponi F, Lübcke A, Kämpfer T, Uschmann I, Förster E, Robinson APL, Giulietti A, Köster P, Labate L, Levato T, Gizzi LA. Directional bremsstrahlung from a Ti laser-produced x-ray source at relativistic intensities in the 3-12 keV range. Phys Rev Lett 2010; 105:085001. [PMID: 20868103 DOI: 10.1103/physrevlett.105.085001] [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] [Subscribe] [Scholar Register] [Received: 12/24/2008] [Revised: 05/12/2010] [Indexed: 05/29/2023]
Abstract
Front and rear side x-ray emission from thin titanium foils irradiated by ultraintense laser pulses at intensities up to ≈5 × 10(19) W/cm2 was measured using a high-resolution imaging system. Significant differences in intensity, dimension, and spectrum between front and rear side emission intensity in the 3-12 keV photon energy range was found even for 5 μm thin Ti foils. Simulations and analysis of space-resolved spectra explain this behavior in terms of directional bremsstrahlung emission from fast electrons generated during the interaction process.
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Affiliation(s)
- F Zamponi
- Institut für Optik und Quantenelektronik, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany.
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Labate L, Giulietti A, Giulietti D, Köster P, Levato T, Gizzi LA, Zamponi F, Lübcke A, Kämpfer T, Uschmann I, Förster E. Novel x-ray multispectral imaging of ultraintense laser plasmas by a single-photon charge coupled device based pinhole camera. Rev Sci Instrum 2007; 78:103506. [PMID: 17979418 DOI: 10.1063/1.2800774] [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] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Spectrally resolved two-dimensional imaging of ultrashort laser-produced plasmas is described, obtained by means of an advanced technique. The technique has been tested with microplasmas produced by ultrashort relativistic laser pulses. The technique is based on the use of a pinhole camera equipped with a charge coupled device detector operating in the single-photon regime. The spectral resolution is about 150 eV in the 4-10 keV range, and images in any selected photon energy range have a spatial resolution of 5 microm. The potential of the technique to study fast electron propagation in ultraintense laser interaction with multilayer targets is discussed and some preliminary results are shown.
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Affiliation(s)
- L Labate
- Intense Laser Irradiation Laboratory, IPCF, Consiglio Nazionale delle Ricerche, Via Moruzzi 1, 56124 Pisa, Italy.
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Köster P, Lüssenhop B, Welti F. [Workshop on theme "chronic illness in the german social code" June 30, 2006 in Lübeck]. REHABILITATION 2007; 46:187-93. [PMID: 17582559 DOI: 10.1055/s-2007-970585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- P Köster
- Institut für Sozialrecht und Sozialpolitik in Europa der Universität Kiel
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Köster P, Welti F, Raspe H. [Colloquium on "the legal framework of evidence-based rehabilitation" April 25, 2005 in Lübeck]. REHABILITATION 2005; 44:373-8. [PMID: 16320182 DOI: 10.1055/s-2005-867005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- P Köster
- Institut für Sozialrecht und Sozialpolitik in Europa der Christian-Albrechts-Universität zu Kiel
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