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1.
Artigo em Inglês | MEDLINE | ID: mdl-38910066

RESUMO

INTRODUCTION: The changes in health dynamics, caused by the SARS-COVD-2 pandemic and its consequences, generated a greater need to integrate palliative care in the ICU to promote a dignified death. OBJECTIVE: Identify interprofessional interventions and factors that improve the care of patients at the end of life. METHODOLOGY: Integrative review, including experimental, quasi-experimental, observational, analytical, and descriptive studies with correlation of variables, published from 2010 to 2021, identified in COCHRANE, CINAHL, CUIDEN, LILACS, SCIELO, Dialnet, PsychInfo, PubMed, PROQUES, PSYCHOLOGY, JOURNALS, SCIENCEDIRECT, with MeSH/DECS terms: "Critical Care", "IntensiveCare" "Life support care", "Palliative care", "Life Quality", "Right to die". 36,271 were identified, after excluding duplicate title, abstract, year of publication, design, theme, methodological quality, objectives, and content, 31 studies were found. RESULTS: It included 31 articles, 16.7% experimental, 3.3% quasi-experimental, 80% observational, analytical, and descriptive with correlation of variables, 38% published in the United States, 38%, and 19% in Brazil. The pooled sample was 24,779 participants. 32.2% of the studies had level of evidence 1 recommendation (c), and 25.8% level of evidence 2 recommendation (c). This paper synthesises evidence to promote Interprofessional Collaborative Practice in the ICU, improve end-of-life care, and interventions to achieve established therapeutic goals, implement effective care policies, plans, and programmes for critically ill patients and their families; factors that affect palliative care and improve with training and continuing education for health personnel. CONCLUSION: There are interventions to manage physical and emotional symptoms, training strategies and emotional support aimed at health personnel and family members to improve the quality of death and reduce stays in the ICU. The interdisciplinary team requires training on palliative and end-of-life care to improve care.

2.
Vet Res Commun ; 2024 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-38575801

RESUMO

Mycobacterium avium subsp. paratuberculosis (MAP) is the causal agent of paratuberculosis (PTBC), a chronic infectious granulomatous enteritis of ruminants. The PTBC diagnosis with commercial ELISA has limitations in sensitivity and specificity, and its results depend on the state of progress of the disease. This research aimed to evaluate two different ELISAs: (a) an "in-house" ELISA with a sonicated antigen obtained from a MAP I47 strain, and (b) a commercial ELISA. In total, the evaluated sample consisted of 394 bovine serum samples from 12 farms in Argentina with high (5-9%) and low (≤ 0.05%) prevalence of PTBC. The evaluation of the new antigen (2.5 µg/mL) was against a 1:50 dilution of the M. phlei faced sera. The cut-off point, sensitivity, and specificity determinations of both techniques were by ROC curve analysis. The area under the curve for the I47 ELISA was 0.9 (CI 95%, 0.93-0.97). With a cut-off point of 8.8%, the sensitivity was 84.3% and the specificity 96.6%. The agreement between both techniques was 0.7 (CI 95%, 0.6-0.8). These results indicate a high discriminative capacity to differentiate positive and negative bovine sera of MAP infection with the I47 ELISA. This result would represent an advantage to dispense with the imported kit.

3.
Radiologia (Engl Ed) ; 66(1): 32-46, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38365353

RESUMO

OBJECTIVE: To describe the magnetic resonance imaging (MRI) findings for the most common inflammatory and immune-mediated diseases that involve the brainstem. CONCLUSION: Inflammatory lesions involving the brainstem are associated with a wide range of autoimmune, infectious, and paraneoplastic syndromes, making the differential diagnosis complex. Being familiar with these entities, their clinical characteristics, and their manifestations on MRI, especially the number of lesions, their shape and extension, and their appearance in different sequences, is useful for orienting the radiological diagnosis.


Assuntos
Tronco Encefálico , Imageamento por Ressonância Magnética , Tronco Encefálico/diagnóstico por imagem , Tronco Encefálico/patologia , Imageamento por Ressonância Magnética/métodos , Diagnóstico Diferencial
4.
Radiother Oncol ; 191: 110077, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38176656

RESUMO

This exploratory study is a follow up to our previous investigation of immune response in the circulation of high-grade Gleason 9 prostate cancer patients treated with EBRT + BT compared to EBRT alone. Notably, EBRT + BT demonstrates the potential to elicit an effect on CD4/CD8 ratio which may have attributed to improved clinical response to therapy. Our findings show promise for leveraging circulating immune cells as predictive biomarkers for radiotherapy response.


Assuntos
Braquiterapia , Neoplasias da Próstata , Masculino , Humanos , Braquiterapia/efeitos adversos , Neoplasias da Próstata/radioterapia , Estudos Retrospectivos , Antígeno Prostático Específico , Linfócitos T CD8-Positivos , Dosagem Radioterapêutica
5.
Z Rheumatol ; 83(3): 186-193, 2024 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-37505294

RESUMO

BACKGROUND: The German Society for Rheumatology, through its campaign Rheuma2025, aims to improve student teaching in order to ensure patient care for rheumatological patients in the future. OBJECTIVE: To assess whether a combination of traditional and innovative educational methods provide both an improvement in the quality of teaching and an increase in the attractiveness of rheumatology as a discipline. MATERIAL AND METHODS: Establishment of the teaching concept "Rheuma (be-)greifen" consisting of five modules on patient history taking with acting patients, musculoskeletal ultrasound, arthrocentesis, 3D printing of pathological joints and virtual reality applications based on real patient cases in the curricular teaching of medical students. RESULTS: The evaluation of the teaching concept with 93 students of medicine showed a consistently high acceptance of all modules, which were rated as very effective or rather effective. Direct patient-related modules, such as history taking with acting patients, musculoskeletal ultrasound and arthrocentesis, received even higher acceptance than the visualization methods utilizing 3D printing and virtual reality. CONCLUSION: Innovative teaching methods can help to improve the acceptance of teaching in the field of rheumatology, especially when combined with classical teaching contents.


Assuntos
Reumatologia , Estudantes de Medicina , Humanos , Reumatologia/educação , Ultrassonografia , Ensino
6.
ISA Trans ; 143: 334-348, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37709560

RESUMO

This study presents the design of an adaptive event-driven controller for solving the trajectory tracking problem of a composite robotic device made up of a three-dimensional Cartesian and a parallel Delta robot. The proposed composite device has a mathematical model satisfying a standard Lagrangian structure affected by modeling uncertainties and external perturbations. The adaptive gain of the controller is considered to enforce the convergence of the tracking error while the state bounds are satisfied. The barrier Lyapunov function addresses the preconceived state constraints for both robotic devices by designing a time-varying gain that guarantees the ultimate boundedness of the tracking error under the effect of external perturbations. The event-driven approach considers that the Cartesian robot is moving into a predefined invariant zone near to the origin. In contrast, the delta robot can complete the tracking problem once the end-effector is inside the given zone. The suggested controller was evaluated using a virtual representation of the composite robotic device showing better tracking performance (while the restrictions are satisfied) than the performances obtained with the traditional linear state feedback controllers. Analyzing the mean square error and its integral led to confirming the benefits of using the adaptive barrier control.

7.
Commun Biol ; 6(1): 978, 2023 09 23.
Artigo em Inglês | MEDLINE | ID: mdl-37741930

RESUMO

Adult hippocampal neurogenesis (AHN) gives rise to new neurons throughout life. This phenomenon takes place in more than 120 mammalian species, including humans, yet its occurrence in the latter was questioned after one study proposed the putative absence of neurogenesis markers in the adult human hippocampus. In this regard, we showed that prolonged fixation impedes the visualization of Doublecortin+ immature neurons in this structure, whereas other authors have suggested that a dilated post-mortem delay (PMD) underlies these discrepancies. Nevertheless, the individual and/or additive contribution of fixation and the PMD to the detection (or lack thereof) of other AHN markers has not been studied to date. To address this pivotal question, we used a tightly controlled experimental design in mice, which allowed the dissection of the relative contribution of the aforementioned factors to the visualization of markers of individual AHN stages. Fixation time emerged as the most prominent factor globally impeding the study of this process in mice. Moreover, the visualization of other particularly sensitive epitopes was further prevented by prolonged PMD. These results are crucial to disambiguate current controversies related to the occurrence of AHN not only in humans but also in other mammalian species.


Assuntos
Hipocampo , Células-Tronco Neurais , Camundongos , Animais , Humanos , Adulto , Hipocampo/fisiologia , Mamíferos , Neurônios/fisiologia , Neurogênese/fisiologia
8.
Rheumatol Int ; 43(10): 1925-1934, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37452880

RESUMO

Antisynthease syndrome (ASSD) is a rare, complex and understudied autoimmune disease. Internet-based studies can overcome barriers of traditional on-site research and are therefore very appealing for rare diseases. The aim of this study was to investigate patient-reported symptoms, diagnostic delay, symptoms, medical care, health status, working status, disease knowledge and willingness to participate in research of ASSD patients by conducting an international web-based survey. The multilingual questionnaire was created by an international group of rheumatologists and patients and distributed online. 236 participants from 22 countries completed the survey. 184/236 (78.0%) were female, mean age (SD) was 49.6 years (11.3) and most common antisynthetase antibody was Jo-1 (169/236, 71.6%). 79/236 (33.5%) reported to work full-time. Median diagnostic delay was one year. The most common symptom at disease onset was fatigue 159/236 (67.4%), followed by myalgia 130/236 (55.1%). The complete triad of myositis, arthritis and lung involvement verified by a clinician was present in 42/236 (17.8%) at disease onset and in 88/236 (37.3%) during the disease course. 36/236 (15.3%) reported to have been diagnosed with fibromyalgia and 40/236 (16.3%) with depression. The most reported immunosuppressive treatments were oral corticosteroids 179/236 (75.9%), followed by rituximab 85/236 (36.0%). 73/236 (30.9%) had received physiotherapy treatment. 71/236 (30.1%) reported to know useful online information sources related to ASSD. 223/236 (94.5%) were willing to share health data for research purposes once a year. Our results reiterate that internet-based research is invaluable for cooperating with patients to foster knowledge in rare diseases.


Assuntos
Autoanticorpos , Miosite , Humanos , Feminino , Pessoa de Meia-Idade , Masculino , Doenças Raras , Diagnóstico Tardio , Miosite/diagnóstico , Miosite/terapia , Síndrome , Aceitação pelo Paciente de Cuidados de Saúde
9.
Radiat Prot Dosimetry ; 199(3): ncac257 179 186-186, 2023 Mar 02.
Artigo em Inglês | MEDLINE | ID: mdl-36521836

RESUMO

PURPOSE: to assess overranging (OR) as a function of pitch, collimation and rotation time for three commonly used CT models in France. METHODS: OR was measured using XR-SP2 Gafchromic films (Ashland, USA) and computed from exposure data for three widely used CT models in France. The impact of collimation, pitch and rotation time on OR was analyzed while comparing the three CT models. RESULTS: for a typical head protocol, measured OR was found to be equal to 1.64 cm for CT scan A, 0.5 cm for CT scan B and 3.44 cm for CT scan C. OR values were respectively of 4.47, 3.24 and 7.81 cm for the typical chest protocol and the 3 CT models. OR was lowest at pitch values <1 for CT scan A, while it linearly increased with pitch for CT scan B and was lowest for high pitch values for CT scan C. Additionally, OR increase with collimation (24 mm to 38.4 mm) was most pronounced for CT scan B (factor of 2.2 for low pitch (0.5) and 2.8 for high pitch (1.2)) while it increased linearly regardless of the pitch for CT scans A and C. Rotation time also proved to slightly affect OR mainly for CT scan B (up to 2.2 mm). CONCLUSION: the present study shows that overranging remains an issue in modern CT scanners with large disparities across the vendors.


Assuntos
Tomografia Computadorizada Espiral , Tomografia Computadorizada por Raios X , Tomografia Computadorizada Espiral/métodos , Doses de Radiação , Rotação , Tomografia Computadorizada por Raios X/métodos , França
10.
Radiologia (Engl Ed) ; 64(6): 573-584, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36402543

RESUMO

Traumatic and especially inflammatory-infectious dental lesions are very prevalent in our context. Inflammatory-infectious disease is usually discovered incidentally on imaging studies that include the orofacial region. Moreover, these conditions can result in potentially severe complications, so early diagnosis and treatment are important. Multidetector computed tomography offers good diagnostic performance for dental lesions, although the radiological findings can be subtle and can go undetected if the radiologist is not familiar with them. Likewise, invasive dental procedures are becoming increasingly common, and these can also result in complications. On the other hand, in daily practice a variety of radiolucent mandibular lesions or developmental anomalies can lead to erroneous interpretations. For these reasons, radiologists should be familiar with possible findings related with dental conditions.


Assuntos
Tomografia Computadorizada Multidetectores , Doenças Estomatognáticas , Humanos , Doenças Estomatognáticas/diagnóstico por imagem
12.
ACS Appl Mater Interfaces ; 14(26): 29766-29772, 2022 Jul 06.
Artigo em Inglês | MEDLINE | ID: mdl-35735116

RESUMO

Perovskite solar cells (PSCs) are being studied and developed because of the outstanding properties of halide perovskites as photovoltaic materials and high conversion efficiencies achieved with the best PSCs. However, leaching out of lead (Pb) ions into the environment presents potential public health risks. We show that thiol-functionalized nanoparticles provide an economic way of minimizing Pb leaching in the case of PSC module damage and subsequent water exposure (at most, ∼2.5% of today's crystal silicon solar panel production cost per square meter). Using commercial materials and methods, we retain ∼90% of Pb without degrading the photovoltaic performance of the cells, compared with nonencapsulated devices, yielding a worst-case scenario of top-soil pollution below natural Pb levels and well below the U.S. Environmental Protection Agency limits.

13.
Phys Rev Lett ; 128(13): 132002, 2022 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-35426724

RESUMO

The first measurement of lepton-jet momentum imbalance and azimuthal correlation in lepton-proton scattering at high momentum transfer is presented. These data, taken with the H1 detector at HERA, are corrected for detector effects using an unbinned machine learning algorithm (multifold), which considers eight observables simultaneously in this first application. The unfolded cross sections are compared with calculations performed within the context of collinear or transverse-momentum-dependent factorization in quantum chromodynamics as well as Monte Carlo event generators.

15.
Radiologia (Engl Ed) ; 2021 Sep 02.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-34482955

RESUMO

Traumatic and especially inflammatory-infectious dental lesions are very prevalent in our context. Inflammatory-infectious disease is usually discovered incidentally on imaging studies that include the orofacial region. Moreover, these conditions can result in potentially severe complications, so early diagnosis and treatment are important. Multidetector computed tomography offers good diagnostic performance for dental lesions, although the radiological findings can be subtle and can go undetected if the radiologist is not familiar with them. Likewise, invasive dental procedures are becoming increasingly common, and these can also result in complications. On the other hand, in daily practice a variety of radiolucent mandibular lesions or developmental anomalies can lead to erroneous interpretations. For these reasons, radiologists should be familiar with possible findings related with dental conditions.

16.
Contemp Clin Trials Commun ; 22: 100770, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34041413

RESUMO

BACKGROUND: Tumor necrosis factor inhibitors (TNFi) signify a major advance in the treatment of rheumatoid arthritis (RA). However, treatment success initially remains uncertain as approximately half of the patients do not respond adequately to TNFi. Thus, an unmet need exists to better predict therapeutic outcome of biologicals. OBJECTIVES: We investigated whether brain activity associated with arthritis measured by functional magnetic resonance imaging (fMRI) of the brain can serve as a predictor of response to TNFi in RA patients. METHODS: PreCePRA is a multi-center, randomized, double-blind, placebo-controlled fMRI trial on patients with RA [1] [2]. Active RA patients failing csDMARDs therapy with a DAS28 > 3.2 and at least three tender and/or swollen joints underwent a brain BOLD (blood-oxygen-level dependent) fMRI scan upon joint compression at screening. Patients were then randomized into a 12-week double-blinded treatment phase with 200 mg Certolizumab Pegol (CZP) every two weeks (arm 1: fMRI BOLD signal activated volume > 2000 voxel, i.e. 2 cm3; arm 2: fMRI BOLD signal activated volume <2000 voxel) or placebo (arm 3). DAS28 low disease activity at 12 weeks was assigned as primary endpoint. A 12-week follow-up phase in which patients were switched from the placebo to the treatment arm followed the blinded phase. fMRI was carried out at screening as well as after 12 and 24 weeks of receiving CZP or placebo. CONCLUSION: We hypothesize that high-level central nervous representation of pain in patients with rheumatoid arthritis predicts response to the TNFi CZP which we further investigate in the PreCePRA trial.

17.
Eur J Neurol ; 28(1): 358-360, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-32997868

RESUMO

COVID-19 can occasionally be associated with cranial nerve involvement, but facial palsy, particularly if bilateral, is exceptional. We here report a patient who presented with severe bilateral facial palsy and evidence of SARS-CoV-2 infection preceded by upper respiratory symptoms. He also had serological evidence of coinfection with Epstein-Barr virus, which could have also played a role in his neurological manifestations. PCR in the cerebrospinal fluid was negative for both EBV and SARS-CoV-2, which suggests an indirect, immune-mediated mechanism rather than direct, viral-induced damage. The patient was treated with prednisone 60 mg/24h with a tapering schedule and had a favorable outcome, with an almost complete recovery in 3 weeks. SARS-CoV-2 adds to the list of infectious agents causative of bilateral facial palsy. Coinfection with SARS-CoV-2 is not rare and should be considered in the differential diagnosis.


Assuntos
COVID-19/complicações , Infecções por Vírus Epstein-Barr/complicações , Paralisia Facial/etiologia , Anti-Inflamatórios/uso terapêutico , Paralisia Facial/diagnóstico por imagem , Humanos , Imageamento por Ressonância Magnética , Masculino , Prednisona/uso terapêutico , Recuperação de Função Fisiológica , Infecções Respiratórias/etiologia , Infecções Respiratórias/fisiopatologia , Resultado do Tratamento , Adulto Jovem
18.
Radiother Oncol ; 155: 80-85, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33172830

RESUMO

This exploratory study evaluates immunological changes in high-risk Gleason 9 prostate cancer patients treated with EBRT+BT compared to EBRT alone. Notably, BT demonstrates the potential to elicit a T cell response which may support further investigation using circulating immune cells as predictive and prognostic biomarkers for radiotherapy response.


Assuntos
Braquiterapia , Neoplasias da Próstata , Humanos , Masculino , Neoplasias da Próstata/radioterapia , Dosagem Radioterapêutica , Estudos Retrospectivos
19.
Phys Chem Chem Phys ; 22(35): 19573-19584, 2020 Sep 21.
Artigo em Inglês | MEDLINE | ID: mdl-32852017

RESUMO

Collisions of He2+, Li3+ and C3+ ions with water molecules are studied at energies ranging between 20 keV u-1 and 500 keV u-1. Three methods are employed: the classical trajectory Monte Carlo (CTMC), the expansion of the scattering wave function in terms of asymptotic frozen molecular orbitals (AFMO) and a lattice method to numerically solve the time-dependent Schrödinger equation (GridTDSE). Total cross sections for single ionization, single electron capture, transfer ionization and electron production are calculated and compared with previous close-coupling calculations and experiments. The fragmentation branching ratios are discussed.

20.
Fish Shellfish Immunol ; 100: 230-237, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32169664

RESUMO

The geoduck Panopea globosa is an endemic and economic valuable species from the Mexican Northwest coast whose biology has been little studied. No information exists about their hemocytes to date, which is highly important to assess the welfare of wild and cultured organisms. In this study, hemocytes of adult P. globosa were characterized at the morphological, ultrastructural and functional level. The mean number of hemocytes in the hemolymph of P. globosa was 6 × 105 ± 2 × 105 cells mL-1. The cells were identified as granulocytes (Gr) and hyalinocytes (H). The former accounted for 28% of adhered cells in the hemolymph, measured 6-18 µm, showed numerous basophilic granules in the cytoplasm, with round and eccentric nuclei, and a nucleus:cytoplasm ratio of 0.44 ± 0.01. Hyalinocytes were the most abundant cells in the hemolymph of P. globosa (72% adhered cells) and were subdivided, according to their size, in small (Hs) 4-12 µm and large (HL) 6-18 µm. Hyalinocytes were eosinophilic round or ovoid cells with a central or eccentric nucleus, few or no granules in the cytoplasm and similar nucleus:cytoplasm ratio (Hs: 0.63 and HL: 061). Lysosomes and lipids were observed in Gr, while carbohydrates were the most abundant energy substrate in H. Both hemocytic cell types, mainly Gr, were capable to ingest particles and yield superoxide (P > 0.05). The present study shows for the first time the cell types, abundance and immune activities of hemocytes present in the hemolymph of P. globosa. This information provides a useful baseline to carry out further research on the cellular immune response of the clam to potential pathogens or changes in environmental factors.


Assuntos
Bivalves/citologia , Bivalves/imunologia , Hemócitos/classificação , Hemolinfa/citologia , Imunidade Celular , Animais , Granulócitos/citologia , México , Oceanos e Mares , Fagocitose , Fagossomos/imunologia
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