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1.
Nature ; 555(7695): 216-219, 2018 03 07.
Artigo em Inglês | MEDLINE | ID: mdl-29516997

RESUMO

The familiar axisymmetric zones and belts that characterize Jupiter's weather system at lower latitudes give way to pervasive cyclonic activity at higher latitudes. Two-dimensional turbulence in combination with the Coriolis ß-effect (that is, the large meridionally varying Coriolis force on the giant planets of the Solar System) produces alternating zonal flows. The zonal flows weaken with rising latitude so that a transition between equatorial jets and polar turbulence on Jupiter can occur. Simulations with shallow-water models of giant planets support this transition by producing both alternating flows near the equator and circumpolar cyclones near the poles. Jovian polar regions are not visible from Earth owing to Jupiter's low axial tilt, and were poorly characterized by previous missions because the trajectories of these missions did not venture far from Jupiter's equatorial plane. Here we report that visible and infrared images obtained from above each pole by the Juno spacecraft during its first five orbits reveal persistent polygonal patterns of large cyclones. In the north, eight circumpolar cyclones are observed about a single polar cyclone; in the south, one polar cyclone is encircled by five circumpolar cyclones. Cyclonic circulation is established via time-lapse imagery obtained over intervals ranging from 20 minutes to 4 hours. Although migration of cyclones towards the pole might be expected as a consequence of the Coriolis ß-effect, by which cyclonic vortices naturally drift towards the rotational pole, the configuration of the cyclones is without precedent on other planets (including Saturn's polar hexagonal features). The manner in which the cyclones persist without merging and the process by which they evolve to their current configuration are unknown.

2.
J Endocrinol Invest ; 46(2): 393-404, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36071330

RESUMO

PURPOSE: The elevated frequency of discordance for congenital hypothyroidism (CH) phenotype between monozygotic twins suggests the involvement of non-mendelian mechanisms. The aim of the study was to investigate the role of epigenetics in CH pathogenesis. METHODS: A genome-wide DNA methylation analysis was performed on the peripheral blood of 23 twin pairs (10 monozygotic and 13 dizygotic), 4 concordant and 19 discordant pairs for CH at birth. RESULTS: Differential methylation analysis did not show significant differences in methylation levels between CH cases and controls, but a different methylation status of several genes may explain the CH discordance of a monozygotic twin couple carrying a monoallelic nonsense mutation of DUOX2. In addition, the median number of hypo-methylated Stochastic Epigenetic Mutations (SEMs) resulted significantly increased in cases compared to controls. The prioritization analysis for CH performed on the genes epimutated exclusively in the cases identified SLC26A4, FOXI1, NKX2-5 and TSHB as the genes with the highest score. The analysis of significantly SEMs-enriched regions led to the identification of two genes (FAM50B and MEG8) that resulted epigenetically dysregulated in cases. CONCLUSION: Epigenetic modifications may potentially account for CH pathogenesis and explain discordance among monozygotic twins.


Assuntos
Hipotireoidismo Congênito , Epigênese Genética , Humanos , Hipotireoidismo Congênito/genética , Metilação de DNA , Mutação , Fenótipo , Gêmeos Monozigóticos/genética
3.
J Eur Acad Dermatol Venereol ; 36(7): 1003-1015, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35279894

RESUMO

Skin is usually the first and most affected organ involved in graft-versus-host disease (GvHD), and treatment is still a clinical challenge. Although the need for skin-directed treatments such as physical treatments and topical medications are generally agreed on, what the gold standard treatment strategy should be remains open to debate. The aim of this scoping review was to synthesize the current knowledge on the topical and physical treatments of cutaneous GvHD in haematopoietic stem cell transplantation patients and to highlight the best evidence available so as to reduce the gap between 'what is known' and 'what is done' in the clinical practice. Twenty-eight studies were included in this qualitative synthesis. Photo-biomodulation with psoralen was not included in this review. Phototherapy (ultraviolet A or B or narrowband B) was the physical treatment most described in the literature in both acute GvHD and chronic GvHD. Topical calcineurin inhibitors such as tacrolimus ointment and pimecrolimus cream as well as corticosteroid creams such as clobetasol and triamcinolone are mainly used in case of chronic GvHD. In all of the studies included in the review, topical treatments were always associated with systemic therapy. None of the topical interventions identified in our review provided strong evidence supporting its use, and the topical approaches seemed to have an adjuvant role in the treatment of cutaneous GvHD.


Assuntos
Doença Enxerto-Hospedeiro , Transplante de Células-Tronco Hematopoéticas , Dermatopatias , Inibidores de Calcineurina/uso terapêutico , Doença Enxerto-Hospedeiro/tratamento farmacológico , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Humanos , Fototerapia , Pele , Dermatopatias/tratamento farmacológico
5.
Eur J Paediatr Dent ; 17(4): 307-309, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28045319

RESUMO

AIM: To clinically evaluate the prevalence of cross-bite in a sample of 1960 children in our Local Health Unit n. 15 Alta Padovana (Veneto region, Northeast Italy). METHODS: Study design: A cross-sectional study was carried out in the area of Health District n. 15, Veneto region, including 7,364 children from 3 to 5 years, attending a total of 88 nursery schools A convenience sample of 27 nursery schools (30% of total) was randomly selected, for a total of 2,603 eligible children; of these, 1960 children formed our study base (76%). The day of examination 566 children were absent and 77 did not meet the inclusion criteria by age (less than 3 or more than 5 years old). Anterior cross-bite was considered when one or more primary or permanent mandibular incisors occluded labially to their antagonists. Posterior cross-bite (uni- or bilateral) was considered when the buccal cusps of one or more maxillary teeth was lingual to the buccal cusps of the mandibular teeth of the primary dentition. In this definition, edge to edge occlusion is not regarded as cross-bite. The examination was carried out by two calibrated dentists with children sitting on a dental chair with good operative lighting. The data were recorded in a special clinical chart. RESULTS: The prevalence of cross-bite was 3.7%. We observed a slight prevalence of cross-bite in females, but with no overall statistical significance. CONCLUSION: The prevalence of cross-bite in this area was low compared with European and American data.


Assuntos
Má Oclusão/epidemiologia , Pré-Escolar , Estudos Transversais , Feminino , Humanos , Itália/epidemiologia , Masculino , Prevalência
6.
Eur J Paediatr Dent ; 17(1): 36-42, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26949237

RESUMO

AIM: Studies on prevalence of malocclusion support the planning and provision of public dental services. The aim of the study was to assess the prevalence of malocclusion and occlusal traits in adolescents aged 14 years from public secondary schools in the area of Health District n.15 - Veneto region, Italy. STUDY DESIGN: Cross-sectional survey. METHODS: Out of a randomly selected sample of 1187 subjects, 444 adolescents (55% males, 45% females) were evaluated in the school settings according to the criteria adopted by Brunelle et al. [1996]. Alginate impressions were then taken for 380 students together with a wax bite. The occlusal traits of the cast were analysed and IOTN was established. RESULTS: The most common occlusal traits measured on casts were overjet >3 mm (48%), overbite >3 mm (39%), midline misalignment (32%), crowding (30%), 99% of the sample showed at least one occlusal trait. Class I molar relationship prevailed (75.5%) and the prevalence of molar asymmetries was 21.9%. The prevalence of anterior and posterior crossbite and open bite was significantly higher in females, while the mean values of overjet and overbite were higher in males. The distribution of IOTN in the study population showed that only 49.5% had no or little need of treatment, and more than one third (35.8%) were assigned a 4 or 5 score. STATISTICS: Descriptive statistics are expressed as a percentage (± confidence interval) or mean ± standard deviation, according to the nature of the variable. CONCLUSIONS: These outcomes indicate a high prevalence of the aforementioned occlusal traits and also a high need for orthodontic treatment among adolescents in Northeast Italy.


Assuntos
Má Oclusão/epidemiologia , Avaliação das Necessidades/estatística & dados numéricos , Adolescente , Estudos de Coortes , Estudos Transversais , Diastema/epidemiologia , Feminino , Humanos , Índice de Necessidade de Tratamento Ortodôntico , Itália/epidemiologia , Registro da Relação Maxilomandibular/instrumentação , Masculino , Má Oclusão Classe I de Angle/epidemiologia , Modelos Dentários , Mordida Aberta/epidemiologia , Sobremordida/epidemiologia , Prevalência , Fatores Sexuais
7.
Scand J Rheumatol ; 44(4): 284-7, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25974389

RESUMO

OBJECTIVES: To investigate whether the functional variant Q63R of the cannabinoid 2 (CB2) receptor is associated with susceptibility to oligo/poly-articular juvenile idiopathic arthritis (JIA) and with its clinical features. METHOD: A total of 171 Italian children with oligoarticular/rheumatoid factor negative poly-articular JIA and 600 healthy controls were enrolled in the study and genotyped. RESULTS: A significant difference in genotype distribution of the CB2 Q63R variant (CNR2 rs35761398) between oligo/poly-articular JIA patients and controls was found (p = 0.001). The R63 variant was associated with increased rates of relapse (p = 0.0001). CONCLUSIONS: This study indicates that the CB2 receptor contributes to susceptibility to oligo/polyarticular JIA and to the severity of its clinical course.


Assuntos
Artrite Juvenil/genética , Artrite/genética , Variação Genética/genética , Receptor CB2 de Canabinoide/genética , Artrite/etnologia , Artrite Juvenil/etnologia , Estudos de Casos e Controles , Criança , Pré-Escolar , Feminino , Predisposição Genética para Doença/etnologia , Predisposição Genética para Doença/genética , Genótipo , Humanos , Itália , Masculino , Índice de Gravidade de Doença
9.
J Endocrinol Invest ; 38(2): 185-7, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25403430

RESUMO

PURPOSE: Although a nation-wide salt iodization program on voluntary basis was implemented in 2005, many areas in our country are still characterized by mild iodine deficiency. Differently from the rest of Italy, an efficient program of iodine prophylaxis was implemented in 1981 in the Autonomous Province of Bolzano. The aim of this study was to investigate whether an adequate iodine intake in the population may affect the incidence of permanent congenital hypothyroidism (CH). METHODS: The incidence trends of permanent CH between 1987 and 2006 in Bolzano Province and in the rest of Italy were estimated. RESULTS: Over the years, the CH incidence has remained steadily lower in Bolzano than in the rest of the country. CONCLUSIONS: Primary prevention of permanent CH may be possible by assuring an adequate nutritional iodine intake in the population. However, the time needed to observe a decrease in the incidence of CH is about a decade under conditions of iodine sufficiency.


Assuntos
Hipotireoidismo Congênito/dietoterapia , Hipotireoidismo Congênito/epidemiologia , Iodo/administração & dosagem , Cloreto de Sódio na Dieta/administração & dosagem , Pré-Escolar , Hipotireoidismo Congênito/diagnóstico , Feminino , Humanos , Incidência , Lactente , Recém-Nascido , Itália/epidemiologia , Masculino , Resultado do Tratamento
10.
Pediatr Rheumatol Online J ; 22(1): 55, 2024 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-38760816

RESUMO

BACKGROUND: Systemic autoinflammatory disorders (SAIDs) represent a growing spectrum of diseases characterized by dysregulation of the innate immune system. The most common pediatric autoinflammatory fever syndrome, Periodic Fever, Aphthous Stomatitis, Pharyngitis, Adenitis (PFAPA), has well defined clinical diagnostic criteria, but there is a subset of patients who do not meet these criteria and are classified as undefined autoinflammatory diseases (uAID). This project, endorsed by PRES, supported by the EMERGE fellowship program, aimed to analyze the evolution of symptoms in recurrent fevers without molecular diagnosis in the context of undifferentiated AIDs, focusing on PFAPA and syndrome of undifferentiated recurrent fever (SURF), using data from European AID registries. METHODS: Data of patients with PFAPA, SURF and uSAID were collected from 3 registries including detailed epidemiological, demographic and clinical data, results of the genetic testing and additional laboratory investigations with retrospective application of the modified Marshall and PRINTO/Eurofever classification criteria on the cohort of PFAPA patients and preliminary SURF criteria on uSAID/SURF patients. RESULTS: Clinical presentation of PFAPA is variable and some patients did not fit the conventional PFAPA criteria and exhibit different symptoms. Some patients did not meet the criteria for either PFAPA or SURF, highlighting the heterogeneity within these groups. The study also explored potential overlaps between PFAPA and SURF/uAID, revealing that some patients exhibited symptoms characteristic of both conditions, emphasizing the need for more precise classification criteria. CONCLUSIONS: Patients with recurrent fevers without molecular diagnoses represent a clinically heterogeneous group. Improved classification criteria are needed for both PFAPA and SURF/uAID to accurately identify and manage these patients, ultimately improving clinical outcomes.


Assuntos
Doenças Hereditárias Autoinflamatórias , Linfadenite , Faringite , Sistema de Registros , Estomatite Aftosa , Humanos , Criança , Europa (Continente)/epidemiologia , Feminino , Masculino , Estomatite Aftosa/diagnóstico , Estomatite Aftosa/epidemiologia , Pré-Escolar , Doenças Hereditárias Autoinflamatórias/diagnóstico , Linfadenite/diagnóstico , Linfadenite/epidemiologia , Faringite/diagnóstico , Adolescente , Lactente , Estudos Retrospectivos , Febre/etiologia , Febre/diagnóstico , Recidiva
11.
J Endocrinol Invest ; 36(3): 195-203, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23404215

RESUMO

The Italian screening program for primary congenital hypothyroidism (CH) is an integrated system including neonatal screening, diagnosis, treatment, follow-up, and nationwide surveillance of the disease. The aim of the Italian screening program for CH is to identify not only babies with severe permanent CH (core target), but also babies with mild persistent and transient forms of CH who could have a benefit from an early replacement therapy (secondary target). In the last years, despite the important results obtained in terms of standardization of screening and follow-up procedures, it has become clear the need of optimizing the program in order to harmonize the screening strategy and the screening procedures among Regions, and to improve the diagnostic and therapeutic approach in all affected infants. On the basis of available guidelines, the experience of the Italian screening and clinical reference centers, and the knowledge derived from the nation-wide surveillance activity performed by the Italian National Registry of Infants with CH, the Italian Society for Pediatric Endocrinology and Diabetology together with the Italian Society for the Study of Metabolic Diseases and Neonatal Screening and the Italian National Institute of Health promoted actions aimed at improving diagnosis, treatment, follow-up and surveillance of CH in our country. In this paper the most important actions to improve the Italian screening program for CH are described.


Assuntos
Hipotireoidismo Congênito/diagnóstico , Hipotireoidismo Congênito/epidemiologia , Triagem Neonatal/métodos , Vigilância da População , Hipotireoidismo Congênito/sangue , Hipotireoidismo Congênito/terapia , Seguimentos , Humanos , Recém-Nascido , Itália/epidemiologia , Triagem Neonatal/organização & administração , Triagem Neonatal/normas , Vigilância da População/métodos , Melhoria de Qualidade , Valores de Referência , Tireotropina/sangue
12.
Water Sci Technol ; 67(2): 433-9, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23168646

RESUMO

This study discussed a proposed process to prioritize chemicals for reclaimed water monitoring programs, selection of analytical methods required for their quantification, toxicological relevance of chemicals of emerging concern regarding human health, and related issues. Given that thousands of chemicals are potentially present in reclaimed water and that information about those chemicals is rapidly evolving, a transparent, science-based framework was developed to guide prioritization of which compounds of emerging concern (CECs) should be included in reclaimed water monitoring programs. The recommended framework includes four steps: (1) compile environmental concentrations (e.g., measured environmental concentration or MEC) of CECs in the source water for reuse projects; (2) develop a monitoring trigger level (MTL) for each of these compounds (or groups thereof) based on toxicological relevance; (3) compare the environmental concentration (e.g., MEC) to the MTL; CECs with a MEC/MTL ratio greater than 1 should be prioritized for monitoring, compounds with a ratio less than '1' should only be considered if they represent viable treatment process performance indicators; and (4) screen the priority list to ensure that a commercially available robust analytical method is available for that compound.


Assuntos
Água Potável/química , Monitoramento Ambiental/métodos , Reciclagem , Poluentes Químicos da Água/análise , Purificação da Água
14.
Eur J Paediatr Dent ; 13(1): 46-52, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22455528

RESUMO

AIM: Prevalence and severity of dental caries in 14-year-olds of Northeast Italy were estimated, evaluating the dependence to SES. MATERIALS AND METHODS: An epidemiological survey was performed among a randomised cluster sample of 560 (290 M and 270 F) 14-year-olds attending secondary schools, to evaluate DMFS following WHO indications. Association between caries occurrence and SES was evaluated in a logistic regression model. To account for high proportion of zero scores (DMFS and DS distribution highly positively skewed) data was moreover modelled with negative binomial regression and zero-inflated models. RESULTS: Caries prevalence was 63.4% with a mean DMFS of 3.0 ± 3.8. A significant trend between means was observed regarding DS in the different SES levels: z = 2.22 p = 0.03 (occupational level) and z = 3.45 p<0.01 when SES was based on educational level. The Negative Binomial Regression model resulted more appropriate than the Poisson model because the dispersion parameter was significantly different from zero (alpha=1.5, 95% CI=1.3-1.8). Working class status showed significant association with DMFS (p=0.04) while using DS as dependent variable, working class subjects and subjects with medium-low and low educational level, showed a statistically significant association. CONCLUSION: Socioeconomic status is still a predictor for dental decay in the Italian 14-year-olds.


Assuntos
Cárie Dentária/epidemiologia , Classe Social , Adolescente , Estudos de Coortes , Estudos Transversais , Índice CPO , Cálculos Dentários/epidemiologia , Escolaridade , Estudos Epidemiológicos , Feminino , Hemorragia Gengival/epidemiologia , Humanos , Itália/epidemiologia , Masculino , Ocupações/estatística & dados numéricos , Índice Periodontal , Prevalência , Fatores de Risco , Fatores Sexuais
15.
Nat Commun ; 13(1): 7390, 2022 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-36450728

RESUMO

Mercury's southern inner magnetosphere is an unexplored region as it was not observed by earlier space missions. In October 2021, BepiColombo mission has passed through this region during its first Mercury flyby. Here, we describe the observations of SERENA ion sensors nearby and inside Mercury's magnetosphere. An intermittent high-energy signal, possibly due to an interplanetary magnetic flux rope, has been observed downstream Mercury, together with low energy solar wind. Low energy ions, possibly due to satellite outgassing, were detected outside the magnetosphere. The dayside magnetopause and bow-shock crossing were much closer to the planet than expected, signature of a highly eroded magnetosphere. Different ion populations have been observed inside the magnetosphere, like low latitude boundary layer at magnetopause inbound and partial ring current at dawn close to the planet. These observations are important for understanding the weak magnetosphere behavior so close to the Sun, revealing details never reached before.

16.
J Biochem Mol Toxicol ; 25(1): 26-7, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21322095

RESUMO

Semicarbazide-sensitive amine oxidase (SSAO) is a copper-containing enzyme that catalyzes the oxidative deamination of endogenous and exogenous primary amines. SSAO exists in mammals both as a plasma-soluble and as a membrane-bound form, and its active site is able to come into contact with numerous xenobiotic, amine-containing compounds. The kinetic studies performed in this work showed that caffeine inhibition of bovine serum amine oxidase was noncompetitive when benzylamine was used as substrate and mixed when the substrate used was methylamine. Since caffeine contains an imidazole ring, it cannot be excluded that it might bind to an inhibitory imidazoline-binding site on SSAO.


Assuntos
Amina Oxidase (contendo Cobre)/antagonistas & inibidores , Amina Oxidase (contendo Cobre)/sangue , Cafeína/farmacologia , Desaminação/efeitos dos fármacos , Aminas/química , Animais , Benzilaminas/química , Sítios de Ligação/efeitos dos fármacos , Bovinos , Cinética , Metilaminas/química , Oxirredução , Ligação Proteica/efeitos dos fármacos , Especificidade por Substrato
17.
Minerva Med ; 102(1): 1-14, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21317845

RESUMO

AIM: The DALY measure represents a new tool for improving the capacity of local health unit to assess population health needs and priorities. Our study aimed to increase the validity of the Disability Adjusted Life Years (DALY), by incorporating local estimates of the disease incidence and applying population-specific disability weights. METHODS: This is a prospective cohort study enrolling subjects aged 45+ years, first-time admitted to the hospital with principal diagnosis of 490-492, 496 ICD IX-CM codes and followed for one year to evaluate the vital status. A subset was administered the Saint George Respiratory Questionnaire to estimate the distribution of the chronic obstructive pulmonary disease (COPD)-related disability. RESULTS: Estimates of total DALY (per 1000) for COPD varied between 2.1 to 3.4 years among men and between 1.0 to 2.3 years among women; percentages of years of life lost due to a premature mortality were between 60 and 70%. CONCLUSION: The DALY represents a new tool for improving the capacity to assess population health needs and priorities. Policy makers owning such a further element of evaluation may be better oriented in allocating resources for COPD among the different health care chapters: prevention, emergency, chronicity and rehabilitation.


Assuntos
Necessidades e Demandas de Serviços de Saúde/estatística & dados numéricos , Doença Pulmonar Obstrutiva Crônica/epidemiologia , Anos de Vida Ajustados por Qualidade de Vida , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Avaliação da Deficiência , Feminino , Nível de Saúde , Hospitalização/estatística & dados numéricos , Humanos , Itália/epidemiologia , Expectativa de Vida , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Prospectivos , Doença Pulmonar Obstrutiva Crônica/mortalidade , Distribuição por Sexo , Fatores de Tempo
18.
Int J Infect Dis ; 102: 363-368, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33130199

RESUMO

BACKGROUND: The high contagiousness and rapid spreading of the coronavirus disease 2019 (COVID-19) has caused a high number of critical to severe life-threatening cases, which required urgent hospital admission and treatment in intensive care units (ICUs). The pandemic has been a tough test for all European national health systems and their capability to provide an adequate reaction. METHODS: The present work aims to reveal correlations between parameters such as COVID-19 incidence, ICU bed occupancy, ICU excess area, and mortality in Italian regions. Public data for the period of March 1 to July 16, 2020, were analyzed using several mathematical and statistical methods. RESULTS: The analysis defined two separate groups of Italian regions. The examined variables considered within these groups were interlinked and dependent on each other. The regions of the two groups shared the same kind of fitted model (linear) explaining mortality as a function of cumulative incidence, but with higher value of the constant in one group, so characterized by a high intrinsic "strength" of the pandemic, certainly playing a major role in the generation of a large number of severe and life-threatening cases. These results are confirmed at European level. Other factors may condition mortality and be linked to incidence, such as ICU saturation and excess. CONCLUSIONS: These quantitative results could be a very helpful tool to set up preventive measures and optimize biomedical interventions before the pandemic, in its recurrent waves, could overcome the reaction capacity of any public health system.


Assuntos
COVID-19/epidemiologia , COVID-19/mortalidade , Unidades de Terapia Intensiva/estatística & dados numéricos , COVID-19/terapia , COVID-19/virologia , Europa (Continente)/epidemiologia , Hospitalização , Humanos , Incidência , Itália/epidemiologia , Pandemias , SARS-CoV-2/fisiologia
19.
Leuk Res Rep ; 15: 100243, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34040959

RESUMO

Major disease complications for patients with essential thrombocythemia (ET) include thrombosis and fibrotic or leukemic transformation. Calreticulin (CALR) mutation type 1 frequencies in ET are estimated between 7% and 11% and ET patients carrying CALR type 1 mutation are associated with lower risk of thrombosis but higher risk of myelofibrosis transformation compared to ET patients with JAK2 mutation. Leukemic transformation rates at 20 years are estimated at less than 5% for ET and risk factors for leukemic transformation are advanced age, thrombosis history, leukocytosis, and anemia. Amongst the subtypes of blast phase myeloproliferative neoplasms, acute promyelocytic leukemia is extremely rare. Herein, we present a case of a promyelocytic blast crisis of post-ET myelofibrosis with associated life-threatening splanchnic vein thrombosis. This case suggests that inflammation plays a key role in thrombotic events and fibrotic/leukemic transformation in ET patients, regardless the molecular landscape.

20.
Space Sci Rev ; 217(1): 11, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33487762

RESUMO

The ESA-JAXA BepiColombo mission to Mercury will provide simultaneous measurements from two spacecraft, offering an unprecedented opportunity to investigate magnetospheric and exospheric particle dynamics at Mercury as well as their interactions with solar wind, solar radiation, and interplanetary dust. The particle instrument suite SERENA (Search for Exospheric Refilling and Emitted Natural Abundances) is flying in space on-board the BepiColombo Mercury Planetary Orbiter (MPO) and is the only instrument for ion and neutral particle detection aboard the MPO. It comprises four independent sensors: ELENA for neutral particle flow detection, Strofio for neutral gas detection, PICAM for planetary ions observations, and MIPA, mostly for solar wind ion measurements. SERENA is managed by a System Control Unit located inside the ELENA box. In the present paper the scientific goals of this suite are described, and then the four units are detailed, as well as their major features and calibration results. Finally, the SERENA operational activities are shown during the orbital path around Mercury, with also some reference to the activities planned during the long cruise phase.

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