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Health literacy is an increasingly required need to help individuals, families and communities manage their health and health conditions. It is linked with better self-adherence to treatments, use of resources, access to care and overall reduced costs in healthcare. In the Gulf Cooperation Council (GCC), which comprises Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates, various health literacy programs are implemented across states to address people's unique and complex healthcare needs. This article aims to examine the current literature and assess the factors that influence the outcomes of health literacy programs within the GCC. An integrative review methodology has been conducted to pursue a comprehensive understanding of health literacy interventions in the GCC. This investigative approach was shaped by Whittemore and Knafl's framework (2005), which includes problem identification, literature search, data evaluation, data analysis and presentation. The literature on the effectiveness of health literacy interventions and the factors that shape them are notably limited worldwide and within the GCC region. This integrative review addresses this knowledge gap and highlights the significance of key themes such as sessions, evaluation and improvement in shaping health literacy outcomes within the GCC region. Through this integrative review, the three main themes of sessions, evaluation and improvement were identified as influencing the outcomes of health literacy programs within the GCC.
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Letramento em Saúde , Humanos , Oriente Médio , Promoção da Saúde/métodos , Avaliação de Programas e Projetos de SaúdeRESUMO
BACKGROUND: Asthma, and severe asthma in particular, is often managed within a specialized field with allergists and clinical immunologists playing a leading role. In this respect, the National Scientific Society SIAAIC (Società Italiana di Allergologia, Asma ed Immunologia Clinica), structured in Regional and Inter-Regional sections, interviewed a large number of specialists involved in the management of this respiratory disease. METHODS: A survey entitled "Management of patients with asthma and severe asthma" based on 17 questions was conducted through the SIAAIC newsletter in 2019 thanks to the collaboration between GlaxoSmithKline S.p.A. and the Inter-Regional Section of SIAAIC of Central Italy. RESULTS: Fifty-nine allergists and clinical immunologists participated to the survey, and 40 of them completed the entire questionnaire. Almost all of the specialists (88%) reported that asthma control was achieved in above 50% of their patients, even if only one third (32%) actually used validated clinical tools such as asthma control test (ACT). Poor adherence to inhaled therapy was recognized as the main cause of asthma control failure by 60% of respondents, and 2-5 min on average is dedicated to the patient inhaler technique training by two-thirds of the experts (65%). Maintenance and as-needed therapy (SMART/MART) is considered an appropriate approach in only a minority of the patients (25%) by one half of the respondents (52%). A high number of exacerbations despite the maximum inhalation therapy were recognized as highly suspicious of severe asthma. Patients eligible for biological therapies are 3-5% of the patients, and almost all the responders (95%) agreed that patients affected by severe asthma need to be managed in specialized centers with dedicated settings. Biological drugs are generally prescribed after 3-6 months from the initial access to the center, and once started, the follow-up is initially programmed monthly, and then every 3-6 months after the first year of treatment (96% of responders). After phenotyping and severity assessment, comorbidities (urticaria, chronic rhinosinusitis with or without nasal polyps, vasculitis, etc.) are the drivers of choice among the different biological drugs. In the management of severe asthma, general practitioners (GPs) should play a central role in selecting patients and referring them to specialized centers while Scientific Societies should train GPs to appropriately recognize difficult asthma and promote public disease awareness campaigns. CONCLUSIONS: This survey which collects the point of view of allergists and clinical immunologists from Central Italy highlights that asthma control is still not measured with validated instruments. There is a general consensus that severe asthma should be managed only in dedicated centers and to this aim it is essential to encourage patient selection from a primary care setting and develop disease awareness campaigns for patients.
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BACKGROUND AND OBJECTIVES: Peach gibberellin-regulated protein (peamaclein) has recently emerged as a relevant food allergen in cypress pollen-hypersensitive patients. Objective: We investigated monosensitization to peamaclein among Italian cypress pollen-allergic patients. MATERIAL AND METHODS: A total of 835 cypress pollen-hypersensitive patients from 28 Italian allergy centers underwent a thorough work-up to determine food-allergic reactions and performed skin prick testing with a commercial peach extract containing peamaclein. IgE to rPru p 3 was measured in peach reactors, and those with negative results were enrolled as potentially monosensitized to peamaclein. IgE reactivity to rPru p 7 was evaluated using immunoblot and an experimental ImmunoCAP with rPru p 7. RESULTS: Skin prick tests were positive to peach in 163 patients (19.5%); however, 127 (77.9%) were excluded because they reacted to Pru p 3. Twenty-four patients (14.7%) corresponding to 2.8% of the entire study population) were considered potentially monosensitized to peamaclein. No geographic preference was observed. Seventeen of the 24 patients (70.8%) had a history of food allergy, mainly to peach (n=15). Additional offending foods included other Rosaceae, citrus fruits, fig, melon, tree nuts, and kiwi. On peach immunoblot, only 3 of 18 putative peamaclein-allergic patients reacted to a band at about 7 kDa; an additional 4 patients reacted at about 50-60 kDa. Ten of 18 patients (56%) had a positive result for Pru p 7 on ImmunoCAP. CONCLUSION: Allergy and sensitization to peamaclein seem rare in Italy. Most patients react to peach, although other Rosaceae fruits and several citrus fruits may also be offending foods. Peach and cypress pollen probably also share cross-reacting allergens other than peamaclein.
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Cupressus , Hipersensibilidade Alimentar , Alérgenos/efeitos adversos , Antígenos de Plantas/efeitos adversos , Reações Cruzadas , Hipersensibilidade Alimentar/epidemiologia , Giberelinas , Humanos , Imunoglobulina E , Proteínas de Plantas/efeitos adversos , Pólen , Testes Cutâneos/efeitos adversosRESUMO
Summary: The clinical usefulness of two commercial peach extracts for SPT (by Lofarma SpA and ALK-Abellò, respectively) was compared in a multicenter study carried out in Italy. Peach allergic patients were tested with the two extracts in parallel and underwent the detection of IgE specific for all three peach allergens currently available (Pru p1, Pru p3, and Pru p4, respectively). The two extracts were almost identical in terms of sensitivity and specificity, being able to detect virtually all patients sensitized to stable peach allergens (lipid transfer protein (LTP) and, presumably, peamaclein) but scoring negative in patients exclusively sensitive to labile allergens (either PR-10 and/or profilin). Thus, the two extracts represent an excellent tool to carry out a preliminary component-resolved diagnosis of peach allergy at the first patient visit.
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Alérgenos/imunologia , Antígenos de Plantas/imunologia , Hipersensibilidade Alimentar/diagnóstico , Extratos Vegetais , Proteínas de Plantas/imunologia , Prunus persica , Testes Cutâneos/métodos , Antígenos de Plantas/análise , Proteínas de Transporte , Hipersensibilidade Alimentar/imunologia , Humanos , Imunoglobulina E , Extratos Vegetais/química , Extratos Vegetais/imunologia , Proteínas de Plantas/análiseRESUMO
Summary: Vaccination represents one of the most powerful medical interventions on global health. Despite being safe, sustainable, and effective against infectious and in some cases also non-infectious diseases, it's nowadays facing general opinion's hesitancy because of a false perceived risk of adverse events. Adverse reactions to vaccines are relatively rare, instead, and those recognizing a hypersensitivity mechanism are even rarer. The purpose of this review is to offer a practical approach to adverse events after vaccination, focusing on immune-mediated reactions with particular regard to their recognition, diagnosis and management. According to clinical features, we propose an algorythm for allergologic work-up, which helps in confirming hypersensitivity to vaccine, nonetheless ensuring access to vaccination. Finally, a screening questionnaire is included, providing criteria for immunisation in specialized care settings.
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Anafilaxia/imunologia , Anafilaxia/terapia , Hipersensibilidade a Drogas/imunologia , Hipersensibilidade a Drogas/terapia , Guias de Prática Clínica como Assunto , Vacinas/efeitos adversos , Anafilaxia/diagnóstico , Temperatura Baixa , Hipersensibilidade a Drogas/diagnóstico , Antagonistas dos Receptores Histamínicos/uso terapêutico , Humanos , Vacinação/efeitos adversos , Vacinas/imunologiaRESUMO
Summary: Non-vitamin K antagonist oral anticoagulants (NOACs) are increasingly being used in hospital and outpatient settings as safe alternatives to warfarin. Hypersensitivity reactions have been described for NOACs and can be classified according to Gell and Coombs. We reviewed case reports of possible drug hypersensitivity reactions, noticing a predominance of delayed reactions (both mild and severe) and the absence of cross-reactions to warfarin and low molecu-lar weight heparins. International experience on diagnostic tests is lacking. The vast majority of authors refer to probability scores and rely on biopsy to classify vasculitis and rule out differential diagnoses. We propose to adapt available tests to confirm the patient's reactivity to new anticoagulants. Among in vivo tests, patch testing revealed promising in delayed reactions.
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Anticoagulantes/efeitos adversos , Hipersensibilidade a Drogas/diagnóstico , Dabigatrana/efeitos adversos , Humanos , Pirazóis/efeitos adversos , Piridinas/efeitos adversos , Piridonas/efeitos adversos , Rivaroxabana/efeitos adversos , Tiazóis/efeitos adversosRESUMO
SUMMARY: Background. The term of α-Gal syndrome, which includes the delayed allergy to red meat and the allergic reactions following the administration of cetuximab, is associated to the presence of specific IgE to α-Gal. In Italy, only anecdotal cases were reported so far. The Association of Italian Allergists (AAITO) carried out a survey with the aim of evaluating presence, characteristics, clinical features, and distribution of the syndrome in Italy. Methods. A web structured questionnaire was made available on the website of AAIITO from July 2016 to January 2017. It included 31 multiple-choice questions concerning different items, including the site of physicians, the number of patients diagnosed as having cetuximab allergy and/or delayed red meat allergy, recall of tick bites, symptoms, time to reactions, elicitor foods, reactions with foods other than meat, and in-vivo and in-vitro tests used for the diagnosis. Results. Seventy-nine physicians completed the questionnaire. Nine cases of allergy to cetuximab and 40 cases of delayed red meat allergy were recorded across Italy. 22.5% of patients with cetuximab allergy and 62.5% of those with delayed red meat allergy recalled a tick bite. 75% of patients with delayed red meat allergy experienced symptoms after eating beef (butcher's cut in 72.5%). Urticaria was the most frequent clinical manifestation (65% of cases). In 60.6% of cases symptoms appeared 2 - 4 hours after meat ingestion, while in 7.9% symptoms appeared after > 4 hours. The most used diagnostic methods were the intradermal test for cetuximab allergy (88.9%) and the detection of IgE to α-Gal (55.5%) for red meat allergy. Most case reports came from Northern Italy. Conclusions. α-Gal syndrome is present in Italy and beef is the most frequent offending food. In most cases symptoms were not severe.
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Cetuximab/efeitos adversos , Dissacarídeos/imunologia , Hipersensibilidade a Drogas/imunologia , Hipersensibilidade Alimentar/imunologia , Hipersensibilidade Tardia/imunologia , Carne Vermelha/efeitos adversos , Picadas de Carrapatos/imunologia , Cetuximab/imunologia , Reações Cruzadas , Hipersensibilidade a Drogas/diagnóstico , Hipersensibilidade a Drogas/epidemiologia , Hipersensibilidade Alimentar/diagnóstico , Hipersensibilidade Alimentar/epidemiologia , Inquéritos Epidemiológicos , Humanos , Hipersensibilidade Tardia/diagnóstico , Hipersensibilidade Tardia/epidemiologia , Testes Imunológicos , Itália/epidemiologia , Prognóstico , Fatores de Risco , Síndrome , Picadas de Carrapatos/diagnóstico , Picadas de Carrapatos/epidemiologiaRESUMO
New engineered materials have critical applications in different fields in medicine, engineering and technology but their enhanced mechanical performances are significantly affected by the microstructural design and the sintering process used in their manufacture. This work introduces (i) a methodology for the calculation of the full deflection profile from video recordings of bending tests, (ii) an optimisation algorithm for the characterisation of Young's modulus, (iii) a quantification of the effects of optical distortions and (iv) a comparison with other standard tests. The results presented in this paper show the capabilities of this procedure to evaluate the Young's modulus of highly stiff materials with greater accuracy than previously possible with bending tests, by employing all the available information from the video recording of the tests. This methodology extends to this class of materials the possibility to evaluate both the elastic modulus and the tensile strength with a single mechanical test, without the need for other experimental tools.
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PURPOSE: The purpose of this study was to investigate the effect of observing point-light and video models and physical practice on learning a crouch start. METHOD: Thirty-two female students were randomly assigned into point-light, video, physical practice, and control groups. They performed 10 trials in pretest, 160 trials in acquisition phase, and 10 trials in 24-hour retention test. Kinematic features and reaction time were measured as dependent variables. RESULTS: Results showed that physical practice group performed better than other groups in reaction time and range of motion of trunk and observational groups performed better than control groups in reaction time and range of motion of knee. CONCLUSION: The results confirm the positive effects of observational practice on motor learning.
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Aprendizagem/fisiologia , Destreza Motora/fisiologia , Prática Psicológica , Tempo de Reação/fisiologia , Adolescente , Fenômenos Biomecânicos/fisiologia , Feminino , Humanos , Retenção Psicológica , Adulto JovemRESUMO
This study involved the development of an objective method to compare the performance of five CT scanners for the purpose of benchmarking. The method used to assess the scanners was to determine the dose-normalised noise at a spatial resolution of 5.5 cm(-1). This gave a dose-normalised percent noise between 0.37% and 0.76%. The scanners were also assessed for radiation dose to patients undergoing abdomen and head CT examinations. Patients' dose-length product (DLP) for the abdomen clinical examinations varied from 305 to 685 mGy-cm, and for the head clinical examinations from 333 to 900 mGy-cm. The study results demonstrated that the comparison of dose and spatial resolution normalised percent noise levels is a useful method of comparing CT scanner performance.
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Benchmarking/métodos , Análise de Falha de Equipamento/métodos , Análise de Falha de Equipamento/normas , Garantia da Qualidade dos Cuidados de Saúde/métodos , Radiometria/métodos , Tomografia Computadorizada por Raios X/instrumentação , Tomografia Computadorizada por Raios X/normas , Austrália , Benchmarking/normas , Desenho de Equipamento , Guias como Assunto , Garantia da Qualidade dos Cuidados de Saúde/normas , Controle de Qualidade , Doses de Radiação , Radiometria/normas , Padrões de Referência , Reprodutibilidade dos Testes , Sensibilidade e EspecificidadeRESUMO
On the basis of the role of immuno-mediated inflammation in atherosclerosis we investigated, (1) the prevalence of anti-endothelial cell antibodies (AECA) in ischaemic heart disease (IHD); (2) if beta2-glycoprotein I (beta2-GPI) was the target antigen of AECA; (3) the relationship between AECA, tissue factor (TF) and tissue factor pathway inhibitor (TFPI). In 93 consecutive IHD patients undergoing percutaneous transluminal coronary angioplasty (PTCA) and 105 controls AECA were detected by ELISA on human umbilical vein endothelial cells (HUVEC). AECA positive sera were evaluated for anti-beta2-GPI antibodies by ELISA. TF and TFPI plasma levels were assessed by ELISA. Twelve of 93 (12.9%) IHD patients and only one of 105 controls (0.95%) were AECA positive. The prevalence of AECA was higher in unstable angina (UA) than in effort angina (EA) (P=0.01). Three of 12 AECA positive sera resulted positive for anti-beta2-GPI and showed a marked decrease in EC-binding when tested on HUVEC cultured in serum-free medium. The binding was restored by the addition of beta2-GPI. TF and TFPI levels were similar in AECA positive and AECA negative patients. The rate of angiographically documented clinical recurrences was 66.7% in the AECA positive and 14.8% in the AECA negative group (P=0.0004) with a significant relationship between restenosis and AECA (P<0.0001), unchanged by the inclusion of cardiovascular risk factors in the regression model. Our results suggest a 'role' for AECA in the immune-mediated inflammation in UA beta2-GPI is not the only AECA target antigen. AECA are not responsible for high TF and TFPI levels. The high rate of clinical recurrences after PTCA, confirmed by angiography, in AECA positive patients is in line with such a role and suggests further large-scale 'ad hoc' studies.
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Autoanticorpos/imunologia , Doença das Coronárias/imunologia , Angioplastia Coronária com Balão , Apolipoproteínas/imunologia , Apolipoproteínas/metabolismo , Biomarcadores , Angiografia Coronária , Doença das Coronárias/diagnóstico por imagem , Doença das Coronárias/metabolismo , Doença das Coronárias/terapia , Progressão da Doença , Endotélio Vascular/imunologia , Endotélio Vascular/metabolismo , Ensaio de Imunoadsorção Enzimática , Inibidores do Fator Xa , Feminino , Glicoproteínas/imunologia , Glicoproteínas/metabolismo , Humanos , Lipoproteínas/imunologia , Lipoproteínas/metabolismo , Masculino , Pessoa de Meia-Idade , Recidiva , Tromboplastina/imunologia , Tromboplastina/metabolismo , Veias Umbilicais/metabolismo , beta 2-Glicoproteína IRESUMO
PURPOSE: In vitro studies have recently demonstrated that homocysteine interacts with the aortic wall by inducing both elastolysis and endothelial perturbation. The aim of this study was to evaluate homocysteine plasma levels and their relationships with aortic diameter and endothelial damage in patients with abdominal aortic aneurysm. SUBJECTS AND METHODS: Fifty-eight consecutive male patients (mean age, 69.5 +/- 6.6 years; age range, 49-78 years) who underwent abdominal aortic aneurysm surgery were enrolled in the study. Twenty-two of 58 patients had no clinical or instrumental evidence of atherosclerosis. Sixty control subjects were age matched and sex matched with the patients. In all of the subjects, we evaluated total homocysteine and thrombomodulin plasma levels and the distribution of the C677T methylenetetrahydrofolate reductase gene mutation. RESULTS: Hyperhomocysteinemia was found in 26 (48%) of the 58 patients with abdominal aortic aneurysm, and homocysteine plasma levels were significantly higher in patients than in control subjects (15.7 +/- 6.5 micromol/L vs 9.6 +/- 3.9 micromol/L; P <. 0001). In addition, the subgroup of patients with abdominal aortic aneurysm who did not show evidence of atherosclerosis showed homocysteine plasma levels significantly higher than those in the controls (14.8 +/- 6.1 micromol/L vs 9.6 +/- 3.9 micromol/L; P <. 001). A larger aneurysmal size was detected in hyperhomocysteinemic patients than in those with normal homocysteine plasma levels (5.09 +/- 0.84 cm vs 5.79 +/- 1.5 cm; P <.05). The genotype distribution of the C677T methylenetetrahydrofolate reductase mutation was as follows: TT 21%, TC 55%, and CC 24% in the patients; TT 10%, TC 58%, and CC 32% in the controls. Moreover, in patients a significant correlation (P <.005) between homocysteine plasma level and 677TT methylenetetrahydrofolate reductase genotype was found. Thrombomodulin plasma levels were significantly higher (P <.00005) in patients (median, 30 ng/mL; range, 10-164 ng/mL) than in controls (median, 19 ng/mL; range, 13-44 ng/mL), and thrombomodulin levels were significantly higher (P <.005) in hyperhomocysteinemic patients (median, 39.5 ng/mL; range, 15-164 ng/mL) than in normohomocysteinemic patients (median, 27.5 ng/mL; range, 10-85 ng/mL). In addition, in patients with abdominal aortic aneurysm, a direct significant correlation (P <.005) was found between homocysteine and thrombomodulin. CONCLUSIONS: These data indicate an association between the presence of AAA in patients selected for surgical treatment of AAA and elevated homocysteine plasma levels and suggest that homocysteine may induce endothelial perturbation and stimulation in these patients.
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Aneurisma da Aorta Abdominal/sangue , Hiper-Homocisteinemia/sangue , Idoso , Aorta Abdominal/patologia , Aorta Abdominal/cirurgia , Aneurisma da Aorta Abdominal/patologia , Aneurisma da Aorta Abdominal/cirurgia , Análise Mutacional de DNA , Endotélio Vascular/patologia , Feminino , Humanos , Hiper-Homocisteinemia/patologia , Hiper-Homocisteinemia/cirurgia , Masculino , Metilenotetra-Hidrofolato Redutase (NADPH2) , Pessoa de Meia-Idade , Oxirredutases atuantes sobre Doadores de Grupo CH-NH/genética , Reação em Cadeia da Polimerase , Fatores de Risco , Trombomodulina/sangueRESUMO
OBJECTIVE: To study those conditions with a proven or hypothesised immunologic pathogenesis and denominated under a working definition of undifferentiated connective tissue diseases (UCTD). METHODS: A multicentre prospective study was organised involving 10 tertiary referral centers of internal medicine in Italy, with the aim of describing the natural history of UCTD and the prevalence of its different clinical and immunological manifestations. RESULTS: After a five-year follow-up period, data on 165 patients were available for analysis. UCTDs occur mainly in females in their fourth decade of life. Articular and mucocutaneous features and Raynaud's phenomenon represent the most common findings. Nevertheless, we also detected a relatively high incidence of permanent major organ damage. Regarding the immunologic parameters, we documented some conflicting results in the correlation between serologic abnormalities and clinical features. In 10 patients UCTD evolved to a major disease, generally systemic lupus erythematosus or Sjögren's syndrome. CONCLUSION: A low rate of evolution to a defined autoimmune disease, the limited use of steroid or immunosuppressive therapy, and a favourable course in the majority of cases are the main characteristics of patients with UCTDs.
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Anti-Inflamatórios/administração & dosagem , Doenças do Tecido Conjuntivo/tratamento farmacológico , Doenças do Tecido Conjuntivo/imunologia , Adolescente , Adulto , Idoso , Anticorpos Antinucleares/análise , Doenças Autoimunes/tratamento farmacológico , Doenças Autoimunes/imunologia , Progressão da Doença , Feminino , Seguimentos , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Doença de Raynaud/tratamento farmacológico , Doença de Raynaud/imunologia , Esteroides , Resultado do Tratamento , Vasculite/tratamento farmacológico , Vasculite/imunologiaRESUMO
Ischemic cardiac manifestations have been reported in a various percentage of patients with anti-phospholipid antibodies. As concerns the relationship between anti-beta2 glycoprotein I antibodies (anti-beta2-GPI) and ischemic heart disease (IHD), it was investigated in only one coronary primary prevention study. We investigated the prevalence of anti-beta2-GPI in a well characterized group of patients with different clinical manifestation of IHD. Sera from 37 patients (mean age 62.7 +/- 9.9) with IHD (20 with unstable angina-UA and 17 with effort angina-EA) and from 40 healthy subjects, matched for age and sex, were tested for the presence of IgG and IgM anti-beta2-GPI using an ELISA technique. Eleven/37 patients (29.7%) resulted positive for anti-beta2-GPI. A positivity for IgG anti-beta2-GPI was found in 10 patients, 1 patient was positive for IgM and 1 for both isotypes. The prevalence of anti-beta2-GPI in the control group resulted significantly lower (2.5%; p < 0.005) than in patients with IHD. Positivity for anti-beta2-GPI was found in 9/20 (45%) patients with UA and only in 2/17 patients (11.8%) with EA (p = 0.0365). IgG anti-beta2-GPI levels (median 7.7U/ml, range 2.6-24.1) were significantly higher in patients with UA compared to patients with EA (median 4.6 U/ml, range 2.3-11.5; p = 0.02) and controls (median 3.15 U/ml, range 2.3-9.0; p < 0.0001); also IgM levels resulted higher in patients with unstable angina. A positivity for anti-beta2-GPI was observed in 4/13 patients (30.8%) with a previous myocardial infarction (MI) and in 7/24 (29.2%) patients without a previous MI. Our findings suggest that anti-beta2-GPI could represent an expression of the T-cell activation detectable in patients with unstable angina. The lack of a significant difference in the prevalence of these antibodies in patients with or without a previous MI suggests that anti-beta2-GPI are not induced by tissue necrosis.
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Angina Instável/imunologia , Síndrome Antifosfolipídica/imunologia , Autoanticorpos/imunologia , Doenças Autoimunes/imunologia , Glicoproteínas/imunologia , Idoso , Angina Pectoris/sangue , Angina Pectoris/imunologia , Angina Instável/sangue , Especificidade de Anticorpos , Síndrome Antifosfolipídica/sangue , Antitrombina III/análise , Autoanticorpos/sangue , Doenças Autoimunes/sangue , Ensaio de Imunoadsorção Enzimática , Feminino , Produtos de Degradação da Fibrina e do Fibrinogênio/análise , Humanos , Imunoglobulina M/imunologia , Ativação Linfocitária , Masculino , Pessoa de Meia-Idade , Isquemia Miocárdica/epidemiologia , Isquemia Miocárdica/imunologia , Fragmentos de Peptídeos/análise , Peptídeo Hidrolases/análise , Protrombina/análise , Fatores de Risco , beta 2-Glicoproteína IRESUMO
OBJECTIVE: To verify whether features of CNS involvement can be detected in SLE patients without overt neuropsychiatric manifestations. METHODS: 114 SLE patients who had never received a diagnosis of neuropsychiatric lupus (never-NPSLE) were studied and compared to 65 SLE patients with known neuropsychiatric involvement (NPSLE). The study relied on evaluation of neurocognitive functions by means of a battery of neuropsychological tests, on psychiatric and neuropsychological assessments and on neuroimaging studies (computed tomography, magnetic resonance, single photon emission computed tomography (SPECT)). RESULTS: Clinical features, including disease duration/activity and pharmacological therapy, of never-NPSLE and NPSLE patients were similar. Short-term and long-term memory, visuo-spatial and verbal information processing were similarly compromised in never-NPSLE and in NPSLE patients; only attention was significantly more compromised in NPSLE patients. Psychiatric morbidity was higher than expected in never-NPSLE patients, although less than in the control neuropsychiatric group. Ischemic lesions, multiple small high intensity lesions and cortical atrophy, detected by CT and MR scans, as well as abnormal SPECT were also frequently detected in never-NPSLE patients. Interestingly, left parietal and occipital area hypoperfusion by SPECT was significantly more frequent in the patients with impaired visuo-spatial intelligence and short-term memory. CONCLUSIONS: Most abnormalities detected by available diagnostic tools and characteristics of neuropsychiatric SLE are also present in non-symptomatic patients. They may derive from an unexpected widespread involvement of the CNS and are not per se sufficient, in the absence of clinical manifestations, for a diagnosis of neuropsychiatric SLE.
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Encefalopatias/diagnóstico , Lúpus Eritematoso Sistêmico/complicações , Adulto , Circulação Cerebrovascular , Transtornos Cognitivos/diagnóstico , Transtornos Cognitivos/etiologia , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Transtornos Mentais/diagnóstico , Transtornos Mentais/etiologia , Pessoa de Meia-Idade , Tomografia Computadorizada de Emissão de Fóton Único , Tomografia Computadorizada por Raios XRESUMO
The computed tomography dose index (CTDI), dose-length product (DLP) and the effective dose were determined for a range of CT examinations in the Sultanate of Oman. There was a wide variation in CTDI. This shows that there is a variation in both scanner design and the exposure settings used by hospitals. There was also a wide variation in DLP and effective dose, suggesting that in some cases too many slices are taken. Therefore, standard protocols should be designed and adhered to in order that radiation doses may be reduced in the future.
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Doses de Radiação , Tomografia Computadorizada por Raios X/normas , Protocolos Clínicos , Humanos , Omã , Padrões de ReferênciaAssuntos
Arteriopatias Oclusivas/sangue , Arteriopatias Oclusivas/fisiopatologia , Endotélio Vascular/fisiopatologia , Homocisteína/sangue , Perna (Membro)/irrigação sanguínea , Doenças Vasculares Periféricas/sangue , Doenças Vasculares Periféricas/fisiopatologia , Idoso , Feminino , Humanos , MasculinoRESUMO
Thrombin generation is a key event in the pathophysiology of coronary syndromes and provides the rationale for treatment with anticoagulants. Unlike standard heparin, low-molecular-weight heparin (LMWH) has little effect on activated partial thromboplastin time. LMWH treatment has been monitored by measurement of anti-Factor Xa activity, but this may not accurately reflect the anticoagulant action because LMWHs also inhibit Factor II. The Heptest is a clotting assay that is sensitive to both anti-Xa and anti-IIa activity, as well as inhibition of the extrinsic pathway by LMWH-stimulated release of tissue factor pathway inhibitor. The plasma thrombin neutralization assay has also been used to measure LMWH and to detect low concentrations to which chromogenic assays are insensitive. In the clinical setting, monitoring the anti-Xa activity in patients treated with LMWH after acute deep vein thrombosis offered no advantages over a standard weight-adjusted dose. Moreover, in acute coronary syndromes there is no increase in major hemorrhage rates with weight-adjusted LMWH. Monitoring of LMWH concentrations may be advisable in the presence of comorbid conditions carrying an increased risk of hemorrhage, such as renal disease, advanced age, severe over- or underweight, or a history of previous bleeding episodes.
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Anticoagulantes/farmacologia , Doenças Cardiovasculares/prevenção & controle , Monitoramento de Medicamentos , Heparina de Baixo Peso Molecular/farmacologia , Coagulação Sanguínea/efeitos dos fármacos , Doenças Cardiovasculares/sangue , HumanosRESUMO
Although the incidence of vascular disease increases progressively with age, the increment observed in women between 50 and 60 years old does not seem to be directly correlated to the menopause. On the other hand, significant modifications of some risk factors, particularly those related to lipid metabolism and the hemostatic system have been observed in postmenopausal women. It should be stressed that the results of these studies, although generally concordant, cannot be applied directly to the entire population: the majority of women studied were well-educated and from the upper-middle social and economic classes and thus more prone to comply with behavioral and therapeutic precepts. Moreover, non-white women were excluded from these studies. At present, numerous data attest to the beneficial effect of hormone replacement therapy on cardiovascular disease in postmenopausal women. The presently running National Institutes of Health 9-year randomized primary prevention study (Women's Health Initiative) and the secondary prevention "Heart Estrogen/Progestin Replacement Study" should, within a few years, provide further and, it is hoped, definitive information concerning the utility of hormone replacement therapy for the primary and secondary prevention of cardiovascular disease.