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Perrier A, Postic B, Martins M, Rutault L, Buvat A, Bécourt-Lhote N, Claude N, Aerts H. In vitro Cardiotoxicity evaluation on hiPSC using phenotypic analysis. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jardim JC, Amaral BP, Martins M, Sebastian P, Heinemann MB, Cortez A, Weiblen R, Flores EF. Respiratory signs, fever and lymphopenia in calves inoculated with Brazilian HoBi-like pestiviruses. Microb Pathog 2018; 123:264-268. [PMID: 30040999 DOI: 10.1016/j.micpath.2018.07.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 07/18/2018] [Accepted: 07/20/2018] [Indexed: 11/24/2022]
Abstract
Hobi-like viruses (HobiPeV) comprise a novel, recently classified species of bovine pestiviruses, originally identified in commercial fetal bovine serum of Brazilian origin and, subsequently, isolated from diseased animals in several countries. Although frequently isolated from clinical cases, most HobiPeV isolates failed to reproduce overt disease in cattle upon experimental inoculation. Herein, we describe the outcome of experimental infection of four to six months-old seronegative calves with two Brazilian HobiPeV isolates. Calves inoculated intranasally with isolate SV478/07 developed viremia between days 2 and 9 post-inoculation (pi) and shed virus in nasal secretions up to day 11pi. These animals presented hyperthermia (day 7 to 10-11 pi) and lymphopenia from days 4 to 8pi. Clinically, all four calves developed varied degrees of apathy, anorexia, mild to moderate respiratory signs (nasal secretion, hyperemia), ocular discharge and pasty diarrhea in the days following virus inoculation. In contrast, calves inoculated with isolate SV757/15 presented only hyperthermia (days 3 to 10-11 pi) and lymphopenia (days 4-8 pi), without other apparent clinical signs. In these animals, viremia was detected up to day 9 pi and virus shedding in nasal secretions lasted up to day 12-14 pi. Both groups seroconverted to the inoculated viruses, developing virus neutralizing (VN) titers from 320 to 5120 at day 28pi. These results extend previous findings that experimental infections of calves with HobiPeV are predominantly mild, yet they also indicate that field isolates may differ in their ability to cause disease in susceptible animals.
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Teodoro T, Martins M, Salgado J. 468 Sexual behaviors in dementia patients. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Gallego-Paez L, Martins M, Barbosa-Morais N. PO-358 CELf2 at the core of a prognostic alternative splicing signature in colorectal cancer. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Cuevas N, Martins M, Rodrigo AP, Martins C, Costa PM. Explorations on the ecological role of toxin secretion and delivery in jawless predatory Polychaeta. Sci Rep 2018; 8:7635. [PMID: 29769587 PMCID: PMC5955894 DOI: 10.1038/s41598-018-26031-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 05/04/2018] [Indexed: 11/17/2022] Open
Abstract
Motivated by biotechnological prospects, there is increasing evidence that we may just be scraping the tip of the iceberg of poisonous marine invertebrates, among which the Polychaeta are promising candidates for bioprospecting. Here we show that an inconspicuous phyllodocid uses toxins in its uncanny feeding strategy. The worm, a jawless active predator characterised by its bright green colour, preys on larger invertebrates (including conspecifics) by extracting tissue portions with its powerful proboscis through suction. The animal is even able to penetrate through the valves and plates of live molluscs and barnacles. Observations in situ and a series of experiments demonstrated that the worm compensates its simple anatomy with secretion of a novel toxin, or mixture of toxins, referred to by us as "phyllotoxins". These are carried by mucus and delivered via repeated contact with the tip of the proboscis until the prey is relaxed or immobilised (reversibly). Proteolytic action permeabilises material to toxins and softens tissue to enable extraction by suction. The findings show that toxins are a major ecological trait and therefore play a key role in evolutionary success and diversification of Polychaeta, demonstrating also that understanding adaptative features may become the best showcase for novel animal toxins.
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Dias S, Gama A, Abrantes P, Akpogheneta O, Reigado V, Ferreira A, Carreiras E, Mora C, Simões D, Martins M. 5.5-O3Examining sexual risk, HIV infection and health services use: a cluster analysis with sub-Saharan African migrants. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky047.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Müller A, Borovik A, Bari S, Buhr T, Holste K, Martins M, Perry-Saßmannshausen A, Phaneuf RA, Reinwardt S, Ricz S, Schubert K, Schippers S. Near-K-Edge Double and Triple Detachment of the F^{-} Negative Ion: Observation of Direct Two-Electron Ejection by a Single Photon. PHYSICAL REVIEW LETTERS 2018; 120:133202. [PMID: 29694177 DOI: 10.1103/physrevlett.120.133202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Indexed: 06/08/2023]
Abstract
Double and triple detachment of the F^{-}(1s^{2}2s^{2}2p^{6}) negative ion by a single photon have been investigated in the photon energy range 660 to 1000 eV. The experimental data provide unambiguous evidence for the dominant role of direct photodouble detachment with a subsequent single-Auger process in the reaction channel leading to F^{2+} product ions. Absolute cross sections were determined for the direct removal of a (1s+2p) pair of electrons from F^{-} by the absorption of a single photon.
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Müller L, Hartmann G, Schleitzer S, Berntsen MH, Walther M, Rysov R, Roseker W, Scholz F, Seltmann J, Glaser L, Viefhaus J, Mertens K, Bagschik K, Frömter R, De Fanis A, Shevchuk I, Medjanik K, Öhrwall G, Oepen HP, Martins M, Meyer M, Grübel G. Note: Soft X-ray transmission polarizer based on ferromagnetic thin films. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:036103. [PMID: 29604789 DOI: 10.1063/1.5018396] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A transmission polarizer for producing elliptically polarized soft X-ray radiation from linearly polarized light is presented. The setup is intended for use at synchrotron and free-electron laser beamlines that do not directly offer circularly polarized light for, e.g., X-ray magnetic circular dichroism (XMCD) measurements or holographic imaging. Here, we investigate the degree of ellipticity upon transmission of linearly polarized radiation through a cobalt thin film. The experiment was performed at a photon energy resonant to the Co L3-edge, i.e., 778 eV, and the polarization of the transmitted radiation was determined using a polarization analyzer that measures the directional dependence of photo electrons emitted from a gas target. Elliptically polarized radiation can be created at any absorption edge showing the XMCD effect by using the respective magnetic element.
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Waitz M, Bello RY, Metz D, Lower J, Trinter F, Schober C, Keiling M, Lenz U, Pitzer M, Mertens K, Martins M, Viefhaus J, Klumpp S, Weber T, Schmidt LPH, Williams JB, Schöffler MS, Serov VV, Kheifets AS, Argenti L, Palacios A, Martín F, Jahnke T, Dörner R. Imaging the square of the correlated two-electron wave function of a hydrogen molecule. Nat Commun 2017; 8:2266. [PMID: 29273745 PMCID: PMC5741688 DOI: 10.1038/s41467-017-02437-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 11/30/2017] [Indexed: 11/23/2022] Open
Abstract
The toolbox for imaging molecules is well-equipped today. Some techniques visualize the geometrical structure, others the electron density or electron orbitals. Molecules are many-body systems for which the correlation between the constituents is decisive and the spatial and the momentum distribution of one electron depends on those of the other electrons and the nuclei. Such correlations have escaped direct observation by imaging techniques so far. Here, we implement an imaging scheme which visualizes correlations between electrons by coincident detection of the reaction fragments after high energy photofragmentation. With this technique, we examine the H2 two-electron wave function in which electron–electron correlation beyond the mean-field level is prominent. We visualize the dependence of the wave function on the internuclear distance. High energy photoelectrons are shown to be a powerful tool for molecular imaging. Our study paves the way for future time resolved correlation imaging at FELs and laser based X-ray sources. Electron-electron correlation is a complex and interesting phenomenon that occurs in multi-electron systems. Here, the authors demonstrate the imaging of the correlated two-electron wave function in hydrogen molecule using the coincident detection of the electron and proton after the photoionization.
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Monteiro L, Barbieri C, Warnakulasuriya S, Martins M, Salazar F, Pacheco JJ, Vescovi P, Meleti M. Type of surgical treatment and recurrence of oral leukoplakia: A retrospective clinical study. Med Oral Patol Oral Cir Bucal 2017; 22:e520-e526. [PMID: 28809365 PMCID: PMC5694172 DOI: 10.4317/medoral.21645] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 02/19/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Oral leukoplakia (OL) is the most typical potentially malignant disorder of the oral mucosa. We aimed to evaluate the clinical outcome of oral leukoplakia treated with several types of lasers and with the use of quantic molecular resonance (QMR) lancet, in terms of recurrence rate. MATERIAL AND METHODS Eighty-seven previously untreated OL (52 occurring in females and 35 in males, mean age of 59.4 ± 13.9 years) were consecutively submitted to surgical treatment at University Hospital of Parma, Italy, and Hospital de Valongo, Portugal, (1999 to 2012). Interventions were subclassified into 5 groups according to the instrument used for the surgical removal of OL (cold blade - 17; Nd:YAG 1064nm laser - 14; Er:YAG 2940nm laser - 33; CO2 10600nm laser - 15; and QMR scalpel - 8). The mean follow-up period after treatment was 21.6 months (range 1-151 months). The outcome of treatment was scored through the same clinical protocol in the two participating units. Statistical analysis were carried by univariate analysis using chi-square test (or Pearson's test when appropriate). RESULTS Recurrences were observed in 24 cases of OL (27.6%). Malignant transformation occurred in one patient (1.1%) after a period of 35 months. Statistical comparison of the 5 surgical treatment modalities showed no differences in clinical outcomes nor in the recurrence rate of OL. However, when Er:YAG laser group was compared with traditional scalpel, a significantly better outcome in cases treated with Er:YAG laser (P = 0.015) was highlighted. CONCLUSIONS Our results suggests that Er:YAG laser could be a promising option for the treatment of OL.
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Cruz CF, Ribeiro A, Martins M, Cavaco-Paulo A. Effect of a peptide in cosmetic formulations for hair volume control. Int J Cosmet Sci 2017; 39:600-609. [PMID: 28703864 DOI: 10.1111/ics.12415] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 07/09/2017] [Indexed: 12/01/2022]
Abstract
OBJECTIVE The capacity of hair to absorb water causes changes in its physical and cosmetic properties under different environmental conditions. Hence, the control of hair volume in variable relative humidity settings is an important topic in cosmetics. The behaviour of two types of hair, Caucasian and Asian, was studied regarding their volume change in different relative humidity conditions. The ability of a peptide as a hair volume treatment was evaluated in two climate control formulations. METHODS Tresses of the two types of hair were tested in two relative humidity (RH) conditions: (A) variable relative humidity (2 h 40% RH, followed by 2 h 90% RH and 2 h of 40% RH), and (B) continuous high relative humidity (90% RH for 6 h). Changes in the hair tress volume were assessed throughout time. Hair treated with two climate control formulations, with and without a peptide (KP peptide), were tested under the two relative humidity conditions. RESULTS Caucasian hair had a higher change in volume compared to the Asian hair in variable and high relative humidity conditions. The hair volume increase when subject to high air humidity, and it was lower with the incorporation of a peptide into climate control formulations. CONCLUSION Caucasian hair showed higher volume than Asian hair when submitted to both relative humidity conditions. The incorporation of the peptide into the climate control formulations, a base (mostly composed of water ≈ 94%) and an ethanolic, was found to reduce the volume of Caucasian hair tresses. The presence of the peptide improved the hair volume change more than 60% in high relative humidity conditions.
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Martins M, Fernandes R. A case of neurosyphilis in a patient presenting with bipolar mixed episode suggestive symptoms. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.02.318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
IntroductionSyphilis is a sexually transmitted disease caused by Treponema pallidum. Early invasion of the central nervous system might occur early in the course of the disease. Clinical manifestations may include acute meningeal syphilis, meningovascular syphilis, paretic neurosyphilis and tabetic neurosyphilis. Psychiatric symptoms are often the presenting symptoms of this illness and the correct diagnosis involves both a high degree of suspicion and adequate diagnostic tests.ObjectivesThe authors report a case of a patient, with no previous history of mental illness, initially admitted in a psychiatric unit with a clinical picture suggestive of a mixed bipolar disorder episode who has been diagnosed with neurosyphilis a year after.MethodsReview of clinical records and complementary exams.ResultsBy the first admission, the patient presented with depressed and irritable mood, emotional lability, aggressiveness, grandiose and racing thoughts. Upon discharge, he was diagnosed with bipolar disorder and referred to ambulatory unit. The following year he starts presenting cognitive deficits and a progressive loss of autonomy in daily living activities, being referred to neurology evaluation. A year after the first admission, he is admitted in a neurology unit and diagnosed with neurosyphilis.ConclusionsCurrent prevalence of symptomatic neurosyphilis in Western Europe is unknown. Atypical cases presenting with heterogeneous psychiatric and neurologic symptoms, with no previous history of mental illness, should raise a high index of clinical suspicion, since consequences for the patient's health might be severe if not properly diagnosed and treated.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Oliveira J, Martins M, Pinto Leite R, Sousa M, Santos R. The new neuromuscular disease related with defects in the ASC-1 complex: report of a second case confirms ASCC1 involvement. Clin Genet 2017; 92:434-439. [PMID: 28218388 DOI: 10.1111/cge.12997] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/13/2017] [Accepted: 02/14/2017] [Indexed: 12/25/2022]
Abstract
Next-generation sequencing technology aided the identification of the underlying genetic cause in a female newborn with a severe neuromuscular disorder. The patient presented generalized hypotonia, congenital bone fractures, lack of spontaneous movements and poor respiratory effort. She died within the first days of life. Karyotyping and screening for several genes related with neuromuscular diseases all tested negative. A male sibling was subsequently born with the same clinical presentation. Whole-exome sequencing was performed with variant filtering assuming a recessive disease model. Analysis focused on genes known to be related firstly with congenital myopathies, extended to muscle diseases and finally to other neuromuscular disorders. No disease-causing variants were identified. A similar disorder was described in patients with recessive variants in two genes: TRIP4 (three families) and ASCC1 (one family), both encoding subunits of the nuclear activating signal cointegrator 1 (ASC-1) complex. Our patient was also found to have a homozygous frameshift variant (c.157dupG, p.Glu53Glyfs*19) in ASCC1 , thereby representing the second known case. This confirms ASCC1 involvement in a severe neuromuscular disease lying within the spinal muscular atrophy or primary muscle disease spectra.
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Ribeiro da Silva C, Rodriguez A, Costa D, Martins M, Oliveira V, Neto RM. Bisphosphonate-related osteonecrosis of the jaws: our experience in up to 120 cases. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ribeiro da Silva C, Rodriguez A, Costa D, Martins M, Oliveira V, Murad Neto R. Total maxillectomy for treatment of bisphosphonates osteonecrosis: diagnosis and reconstruction. Report of two cases. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.1051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Neto R, Xavier CE, Rodrigues A, Martins M, Marti D, Oliveira V. Dental implants used to replace structures of the maxillofacial complex. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.1139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Cruz CF, Martins M, Egipto J, Osório H, Ribeiro A, Cavaco-Paulo A. Changing the shape of hair with keratin peptides. RSC Adv 2017. [DOI: 10.1039/c7ra10461h] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Here we propose a solution which will replace harsh reducing agents at alkaline pH by peptide formulations acting at neutral pH to change hair shape through the re-conformation of disulphide bonds.
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Martins M, Wagner V, Webber L, Salvadori G, Fonseca F, Castilho R, Squarize C, Vargas P. EXPRESSION OF MUTS± COMPLEX PROTEINS PREDICTS POOR PROGNOSIS IN ORAL SQUAMOUS CELL CARCINOMA. Oral Surg Oral Med Oral Pathol Oral Radiol 2016. [DOI: 10.1016/j.oooo.2016.06.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Da Silva DD, Ferreira A, Martins M, Valente M, Remião F, Carvalho F, Bastos M, Carmo H. In vitro neurotoxicity of ‘Legal X’: The combination of 1-benzylpiperazine (BZP) and 1-(m-trifluoromethylphenyl)piperazine (TFMPP) induces mitochondrial impairment and disrupts thiol homeostasis in dopaminergic SH-SY5Y cells. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Martins M, Pinto A, Bravo R, Carmo H, Carvalho F, Bastos M, Dinis-Oliveira R, da Silva DD. Cocaine combined with heroin/morphine or ethanol disrupts mitochondrial and oxidative homeostasis. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Waitz M, Metz D, Lower J, Schober C, Keiling M, Pitzer M, Mertens K, Martins M, Viefhaus J, Klumpp S, Weber T, Schmidt-Böcking H, Schmidt LPH, Morales F, Miyabe S, Rescigno TN, McCurdy CW, Martín F, Williams JB, Schöffler MS, Jahnke T, Dörner R. Two-Particle Interference of Electron Pairs on a Molecular Level. PHYSICAL REVIEW LETTERS 2016; 117:083002. [PMID: 27588854 DOI: 10.1103/physrevlett.117.083002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Indexed: 06/06/2023]
Abstract
We investigate the photodouble ionization of H_{2} molecules with 400 eV photons. We find that the emitted electrons do not show any sign of two-center interference fringes in their angular emission distributions if considered separately. In contrast, the quasiparticle consisting of both electrons (i.e., the "dielectron") does. The work highlights the fact that nonlocal effects are embedded everywhere in nature where many-particle processes are involved.
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Martins J, Alexandrino H, Oliveira R, Cipriano M, Falcão D, Ferreira L, Martins R, Serôdio M, Martins M, Tralhão J, Prado e Castro L, Castro e Sousa F. Sinusoidal dilation increases the risk of complications in hepatectomy for CRCLM – Protective effect of bevacizumab and diabetes mellitus, serum gamma-glutamyltranspeptidase as predictive factor. Eur J Surg Oncol 2016; 42:713-21. [DOI: 10.1016/j.ejso.2016.02.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 01/25/2016] [Accepted: 02/11/2016] [Indexed: 12/18/2022] Open
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Beeck T, Baev I, Gieschen S, Meyer H, Meyer S, Palutke S, Feulner P, Uhlig K, Martins M, Wurth W. New experimental perspectives for soft x-ray absorption spectroscopies at ultra-low temperatures below 50 mK and in high magnetic fields up to 7 T. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:045116. [PMID: 27131716 DOI: 10.1063/1.4947516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A new ultra-low temperature experiment including a superconducting vector magnet has been developed for soft x-ray absorption spectroscopy experiments at third generation synchrotron light sources. The sample is cooled below 50 mK by a cryogen free (3)He-(4)He dilution refrigerator. At the same time, magnetic fields of up to ±7 T in the horizontal direction and ±0.5 T in the vertical direction can be applied by a superconducting vector magnet. The setup allows to study ex situ and in situ prepared samples, offered by an attached UHV preparation chamber with load lock. The transfer of the prepared samples between the preparation section and the dilution refrigerator is carried out under cryogenic temperatures. First commissioning studies have been carried out at the Variable Polarization XUV Beamline P04 at PETRA III and the influence of the incident photon beam to the sample temperature has been studied.
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Martins M, Boavida JM, Raposo JF, Froes F, Nunes B, Ribeiro RT, Macedo MP, Penha-Gonçalves C. Diabetes hinders community-acquired pneumonia outcomes in hospitalized patients. BMJ Open Diabetes Res Care 2016; 4:e000181. [PMID: 27252873 PMCID: PMC4879333 DOI: 10.1136/bmjdrc-2015-000181] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 04/04/2016] [Accepted: 04/28/2016] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES This study aimed to estimate the prevalence of diabetes mellitus (DM) in hospitalized patients with community-acquired pneumonia (CAP) and its impact on hospital length of stay and in-hospital mortality. RESEARCH DESIGN AND METHODS We carried out a retrospective, nationwide register analysis of CAP in adult patients admitted to Portuguese hospitals between 2009 and 2012. Anonymous data from 157 291 adult patients with CAP were extracted from the National Hospital Discharge Database and we performed a DM-conditioned analysis stratified by age, sex and year of hospitalization. RESULTS The 74 175 CAP episodes that matched the inclusion criteria showed a high burden of DM that tended to increase over time, from 23.7% in 2009 to 28.1% in 2012. Interestingly, patients with CAP had high DM prevalence in the context of the national DM prevalence. Episodes of CAP in patients with DM had on average 0.8 days longer hospital stay as compared to patients without DM (p<0.0001), totaling a surplus of 15 370 days of stay attributable to DM in 19 212 admissions. In-hospital mortality was also significantly higher in patients with CAP who have DM (15.2%) versus those who have DM (13.5%) (p=0.002). CONCLUSIONS Our analysis revealed that DM prevalence was significantly increased within CAP hospital admissions, reinforcing other studies' findings that suggest that DM is a risk factor for CAP. Since patients with CAP who have DM have longer hospitalization time and higher mortality rates, these results hold informative value for patient guidance and healthcare strategies.
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Palutke S, Gerken NC, Mertens K, Klumpp S, Mozzanica A, Schmitt B, Wunderer C, Graafsma H, Meiwes-Broer KH, Wurth W, Martins M. Spectrometer for shot-to-shot photon energy characterization in the multi-bunch mode of the free electron laser at Hamburg. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:113107. [PMID: 26628121 DOI: 10.1063/1.4936293] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The setup and first results from commissioning of a fast online photon energy spectrometer for the vacuum ultraviolet free electron laser at Hamburg (FLASH) at DESY are presented. With the use of the latest advances in detector development, the presented spectrometer reaches readout frequencies up to 1 MHz. In this paper, we demonstrate the ability to record online photon energy spectra on a shot-to-shot base in the multi-bunch mode of FLASH. Clearly resolved shifts in the mean wavelength over the pulse train as well as shot-to-shot wavelength fluctuations arising from the statistical nature of the photon generating self-amplified spontaneous emission process have been observed. In addition to an online tool for beam calibration and photon diagnostics, the spectrometer enables the determination and selection of spectral data taken with a transparent experiment up front over the photon energy of every shot. This leads to higher spectral resolutions without the loss of efficiency or photon flux by using single-bunch mode or monochromators.
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