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1.
Artículo en Inglés | MEDLINE | ID: mdl-37937715

RESUMEN

BACKGROUND AND OBJECTIVE: The safety profile of venom immunotherapy (VIT) is a relevant issue and considerable differences in safety and efficacy of VIT have been reported. The primary aim of this study was to evaluate the safety of ACE inhibitors and beta-blockers during VIT, which has already been published. For a second analysis, data concerning premedication and venom preparations in relation to systemic adverse events (AE) during the up-dosing phase and the first year of the maintenance phase were evaluated as well as the outcome of field stings and sting challenges. METHODS: The study was conducted as an open, prospective, observational, multicenter study. In total, 1,425 patients were enrolled and VIT was performed in 1,342 patients. RESULTS: Premedication with oral antihistamines was taken by 52.1% of patients during the up-dosing and 19.7% of patients during the maintenance phase. Taking antihistamines had no effect on the frequency of systemic AE (p=0.11) but large local reactions (LLR) were less frequently seen (OR: 0.74; 95% CI: 0.58-0.96; p=0.02). Aqueous preparations were preferentially used for up-dosing (73.0%) and depot preparations for the maintenance phase (64.5%). The type of venom preparation neither had an influence on the frequency of systemic AE nor on the effectiveness of VIT (p=0.26 and p=0.80, respectively), while LLR were less frequently seen when depot preparations were used (p<0.001). CONCLUSION: Pretreatment with oral antihistamines during VIT significantly reduces the frequency of LLR but not systemic AE. All venom preparations used were equally effective and did not differ in the frequency of systemic AE.

2.
J Eur Acad Dermatol Venereol ; 37(9): 1799-1810, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37210651

RESUMEN

BACKGROUND: Monoclonal antibodies, such as cemiplimab and pembrolizumab, against the programmed death receptor (PD)-1 have become the current standard of care and first-line treatment of advanced cutaneous squamous cell carcinoma (cSCC), proving remarkable clinical benefit and acceptable safety. OBJECTIVES: To assess efficacy and safety of the anti-PD-1 antibody nivolumab in patients with locally advanced and metastatic cSCC. METHODS: Patients received open-label nivolumab 240 mg intravenously every 2 weeks for up to 24 months. Patients with concomitant haematological malignancies (CHMs), either non-progressing or stable under active therapy, were eligible for inclusion. RESULTS: Of 31 patients with a median age of 80 years, 22.6% of patients achieved an investigator assessed complete response, resulting in an objective response rate (ORR) of 61.3% and a disease control rate (DCR) of 64.5%. Progression-free survival (PFS) was 11.1 months, and the median overall survival (OS) was not reached after 24 weeks of therapy. Median follow-up was 23.82 months. Subgroup analysis of the CHM cohort (n = 11; 35%) revealed an ORR of 45.5%, a DCR of 54.5%, a median PFS of 10.9 months, and median OS of 20.7 months. Treatment related adverse events were reported in 58.1% of all patients (19.4% grade 3, the remaining grade 1 or 2). PD-L1 expression and CD-8+ T-cell infiltration did not significantly correlate with clinical response, although a trend towards a shorter PFS of 5.6 months was observed with PD-L1 negativity and low CD8+ intratumoral infiltration. CONCLUSION: This study demonstrated robust clinical efficacy of nivolumab in patients with locally advanced and metastatic cSCCs and a tolerability comparable to data of other anti-PD-1 antibodies. Favourable outcomes were obtained despite involving the oldest hitherto reported study cohort for anti-PD-1 antibodies and a significant proportion of CHM patients prone to high risk tumours and an aggressive course otherwise typically excluded from clinical trials.


Asunto(s)
Carcinoma de Células Escamosas , Neoplasias Hematológicas , Neoplasias Cutáneas , Humanos , Anciano de 80 o más Años , Nivolumab/uso terapéutico , Nivolumab/efectos adversos , Carcinoma de Células Escamosas/tratamiento farmacológico , Carcinoma de Células Escamosas/inducido químicamente , Antígeno B7-H1 , Neoplasias Cutáneas/tratamiento farmacológico , Neoplasias Cutáneas/inducido químicamente
3.
J Intellect Disabil Res ; 65(7): 617-625, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-33788310

RESUMEN

BACKGROUND: Workers supporting adults with intellectual disabilities (ID) experience significant stress in their essential role during COVID-19 due to the high risk of their clients contracting COVID-19 and having adverse outcomes. The purpose of the current study was to describe the attitudes of workers towards COVID-19 vaccination prior to vaccination rollout, with a view to informing strategies to promote vaccine uptake within this high-risk sector. METHODS: An online survey was sent via email to workers supporting adults with ID in Ontario, Canada, between January 21 and February 3, 2021 by agency leadership and union representatives. RESULTS: Three thousand and three hundred and seventy-one workers, representing approximately 11.2% of Ontario workers supporting adults with ID completed an online survey. Most reported that they were very likely (62%) or likely (20%) to get a COVID-19 vaccine (vaccination intent) although 18% reported they were less likely to do so (vaccination nonintent). Workers with vaccination nonintent were younger and were more likely to endorse the beliefs that (1) it will not benefit them or those around them, (2) it was not part of their job, (3) rapid development confers uncertainties and risks, and (4) they were scared of potential vaccine side effects. CONCLUSIONS: There is need to address common misconceptions among workers supporting adults with ID to help activate them as vaccine advocates in the communities they serve. Partnered efforts between workers, unions and agency leadership with public health experts to address concerns are required.


Asunto(s)
Actitud del Personal de Salud , Vacunas contra la COVID-19 , Conocimientos, Actitudes y Práctica en Salud , Personal de Salud/estadística & datos numéricos , Discapacidad Intelectual/terapia , Adulto , Femenino , Encuestas de Atención de la Salud/estadística & datos numéricos , Humanos , Masculino , Persona de Mediana Edad , Ontario
4.
J Eur Acad Dermatol Venereol ; 33(4): 667-675, 2019 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-30357969

RESUMEN

BACKGROUND: Primary melanoma ulceration is an unfavourable prognostic factor included in current staging systems. Yet, the immunological and molecular alterations responsible for this adverse outcome have not been fully elucidated. OBJECTIVES: We aimed to identify immunological differences between ulcerated and non-ulcerated primary melanomas concerning both innate and adaptive immunity and to correlate these with clinical outcome. METHODS: Formalin-fixed paraffin-embedded primary melanomas from 112 patients (pts) were analysed by immunohistochemistry. The expression of various markers identifying tumour-infiltrating lymphocytes, macrophages and dendritic cells was evaluated semi-quantitatively by three independent investigators. Tumour cell expression of programmed death-ligand 1 (PD-L1), transporter of antigen processing 1 and the MxA protein was also analysed. RESULTS: Recurrence occurred in 21/56 pts (37.5%) with ulcerated vs. 14/56 pts (25.0%) with non-ulcerated tumours (P = 0.15). Tumour ulceration was associated with more frequent development of brain metastasis (17.6 vs. 3.6% of pts, P = 0.015). Immunohistochemistry showed an association of ulceration with the presence of intratumoural CD68+ macrophages (P = 0.028) as well as with increased numbers of intratumoural CD11c+ dendritic cells (P = 0.014) and CD163+ macrophages (P = 0.001). PD-L1 positivity (expression in >1% of tumour cells) was more frequent in ulcerated than non-ulcerated tumours [40 (72.7%) vs. 25 (44.6%), P = 0.003]. A positive correlation between intratumoural CD11c+ (Spearman's correlation coefficient ρ: 0.42) and CD163+ (ρ: 0.31) cell count and frequency of tumour cell PD-L1 expression was detected. CONCLUSIONS: Our results confirm the adverse clinical outcome associated with primary melanoma ulceration, particularly concerning the risk of recurrence and subsequent development of brain metastases. The observed immunological differences suggest a conceivable role of increased intratumoural macrophage and dendritic cell counts associated with enhanced tumour cell PD-L1 expression potentially contributing to the immunosuppressive, growth-promoting microenvironment of ulcerated primary melanomas.


Asunto(s)
Antígeno B7-H1/metabolismo , Neoplasias Encefálicas/secundario , Melanoma/metabolismo , Recurrencia Local de Neoplasia/inmunología , Neoplasias Cutáneas/metabolismo , Úlcera Cutánea/inmunología , Microambiente Tumoral , Inmunidad Adaptativa , Adulto , Anciano , Anciano de 80 o más Años , Antígenos CD/metabolismo , Antígenos de Diferenciación Mielomonocítica/metabolismo , Antígeno CD11c/metabolismo , Células Dendríticas/metabolismo , Femenino , Humanos , Inmunidad Innata , Macrófagos/metabolismo , Masculino , Melanoma/complicaciones , Melanoma/secundario , Persona de Mediana Edad , Receptores de Superficie Celular/metabolismo , Neoplasias Cutáneas/complicaciones , Neoplasias Cutáneas/patología , Úlcera Cutánea/etiología , Úlcera Cutánea/patología , Adulto Joven
5.
Lupus ; 27(12): 1898-1902, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-30223707

RESUMEN

Monocytes play an important role in inducing host systemic immunity against invading pathogens and inflammatory responses. After activation, monocytes migrate to tissue sites, where they initiate both innate and adaptive immune responses, and become macrophages. Although mucosal macrophages produce inflammatory cytokines in response to pathogens, the perturbations in innate immune signaling pathway have been implicated in autoimmune diseases such as systemic lupus erythematosus (SLE). In this review, we focus on the role of human macrophages in intestinal innate immune responses, homeostasis, and SLE disease. We further discuss sex differences in the intestinal macrophages and their role in the physiology and pathogenesis of SLE.


Asunto(s)
Inmunidad Mucosa , Lupus Eritematoso Sistémico/inmunología , Macrófagos/inmunología , Animales , Citocinas/inmunología , Humanos , Inmunidad Innata , Ratones , Monocitos/inmunología , Factores Sexuales
6.
Zhonghua Wai Ke Za Zhi ; 56(4): 274-278, 2018 Apr 01.
Artículo en Zh | MEDLINE | ID: mdl-29562412

RESUMEN

Objective: To analyze the application of vascular replacement technique with allogenic blood vessel in radical resection for pancreatic carcinoma. Methods: The clinical data of 33 patients with vascular invasion of pancreatic carcinoma who underwent radical resection from April 2013 to April 2017 in Department of Hepatobiliary Surgery, Beijing Chaoyang Hospital were retrospectively analyzed. There were 14 males and 19 females with age of (62.5±10.6)years(ranging from 35 to 78 years). Vascular replacement technique with allogenic blood vessel was used on all patients who underwent radical resection for pancreatic carcinoma. The operation procedure was made according to the specific location of the carcinoma, and the allogenic blood vessel was selected according to the type of vascular invasion. The matching vessel was selected for replacement to the patient who was invaded only one vessel. And the "Y" type of iliac vein was selected for replacement to the patient who was invaded the confluence of portal vein, splenic vein and superior mesenteric vein. After the operation, the patients were followed up by telephone and outpatient review. Results: All of 33 patients were successfully completed the operations. There were 28 patients underwent pancreaticoduodenectomy with vascular replacement, and 5 patients underwent total pancreatectomy with vascular replacement. All the patients were confirmed pancreatic carcinoma and R0 resection according to the postoperative pathology. There were 16 patients with the carcinoma invasion the confluence of portal vein, splenic vein and superior mesenteric vein, 12 patients with the carcinoma invasion the superior mesenteric vein, and 5 patients with the carcinoma invasion the portal vein. There was no perioperative death in this group and no complications related to allogenic blood vessel. The incidence of postoperative complications was 18.2% (6/33), and the incidence of pancreatic fistula was 6.1% (2/33), all of which were biochemical fistula. There were 32 patients were followed up, and the follow-up rate was 96.9%. The median survival time was 14.6 months. The half-year, 1-year and 2-year survival rates were 75.6%, 37.6% and 27.4%. Conclusion: The application of vascular replacement technique with allogenic blood vessel for pancreatic carcinoma has a great significance for improving the R0 resection rate and the prognosis of patients.


Asunto(s)
Neoplasias Pancreáticas , Pancreaticoduodenectomía , Adulto , Anciano , Femenino , Humanos , Masculino , Venas Mesentéricas/cirugía , Persona de Mediana Edad , Invasividad Neoplásica , Neoplasias Pancreáticas/cirugía , Vena Porta/cirugía , Estudios Retrospectivos , Neoplasias Pancreáticas
7.
Allergy ; 72(5): 754-763, 2017 May.
Artículo en Inglés | MEDLINE | ID: mdl-27753449

RESUMEN

BACKGROUND: Allergen-specific IgE antibodies are a hallmark of type I allergy. The aim of this cross-sectional study was to analyze the sensitization profiles of an Austrian adolescent population utilizing molecule-based IgE diagnosis. METHODS: Serum samples of 501 nonselected pupils from Salzburg, Austria, were tested in ImmunoCAP ISAC® for IgE reactivity to 112 single allergens. Sensitization profiles were assessed and statistically coordinated with reported allergies. RESULTS: In the population aged 12-21 years, 53.5% showed IgE reactivity to at least one allergen tested. The highest prevalence was found for Phl p 1 from grass pollen (26.5%), group 2 mite allergens (18.2%), Bet v 1 from birch pollen (16.3%) and Fel d 1 from cat (14.4%). The majority of participants showed a complex sensitization profile and reacted on average to 9 allergens. Pollen sensitization was highly prevalent (41.7%) and mainly driven by group I grass and PR-10 allergens of the Betulaceae family, while Pla l 1 represented the most relevant weed. Diagnosed and self-reported allergies were noted in 21.9% and 45.5% of participants, respectively, and correlated well with in vitro results. Among atopic individuals, 71.4% reported to suffer from at least one allergy; concordance was found for grass and cat sensitization, while venom- and weed pollen-positive individuals were frequently asymptomatic. CONCLUSIONS: More than half of the tested adolescent population had already established an atopic status presenting a complex IgE reactivity profile dominated by pollen sensitization. Detailed molecule-based analysis allows determining relevant biomarkers and monitoring of the atopic status in populations.


Asunto(s)
Alérgenos/inmunología , Hipersensibilidad/epidemiología , Hipersensibilidad/inmunología , Inmunoglobulina E/inmunología , Adolescente , Adulto , Austria/epidemiología , Niño , Estudios Transversales , Femenino , Humanos , Hipersensibilidad/diagnóstico , Hipersensibilidad Inmediata/epidemiología , Hipersensibilidad Inmediata/inmunología , Masculino , Prevalencia , Adulto Joven
8.
Phys Rev Lett ; 115(9): 091302, 2015 Aug 28.
Artículo en Inglés | MEDLINE | ID: mdl-26371638

RESUMEN

We have searched for periodic variations of the electronic recoil event rate in the (2-6) keV energy range recorded between February 2011 and March 2012 with the XENON100 detector, adding up to 224.6 live days in total. Following a detailed study to establish the stability of the detector and its background contributions during this run, we performed an unbinned profile likelihood analysis to identify any periodicity up to 500 days. We find a global significance of less than 1σ for all periods, suggesting no statistically significant modulation in the data. While the local significance for an annual modulation is 2.8σ, the analysis of a multiple-scatter control sample and the phase of the modulation disfavor a dark matter interpretation. The DAMA/LIBRA annual modulation interpreted as a dark matter signature with axial-vector coupling of weakly interacting massive particles to electrons is excluded at 4.8σ.

10.
Eur J Nutr ; 54(1): 149-56, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24740588

RESUMEN

PURPOSE: Coffee consumption has been reported to decrease oxidative damage in peripheral white blood cells (WBC). However, effects on the level of spontaneous DNA strand breaks, a well established marker of health risk, have not been specifically reported yet. We analyzed the impact of consuming a dark roast coffee blend on the level of spontaneous DNA strand breaks. METHODS: Healthy men (n = 84) were randomized to consume daily for 4 weeks either 750 ml of fresh coffee brew or 750 ml of water, subsequent to a run in washout phase of 4 weeks. The study coffee was a blend providing high amounts of both caffeoylquinic acids (10.18 ± 0.33 mg/g) and the roast product N-methylpyridinium (1.10 ± 0.05 mg/g). Before and after the coffee/water consumption phase, spontaneous strand breaks were determined by comet assay. RESULTS: At baseline, both groups exhibited a similar level of spontaneous DNA strand breaks. In the intervention phase, spontaneous DNA strand breaks slightly increased in the control (water only) group whereas they significantly decreased in the coffee group, leading to a 27% difference within both arms (p = 0.0002). Food frequency questionnaires indicated no differences in the overall diet between groups, and mean body weight during the intervention phases remained stable. The consumption of the study coffee substantially lowered the level of spontaneous DNA strand breaks in WBC. CONCLUSION: We conclude that regular coffee consumption contributes to DNA integrity.


Asunto(s)
Antioxidantes/administración & dosificación , Café , Roturas del ADN , Manipulación de Alimentos , Leucocitos/metabolismo , Adulto , Alcaloides/administración & dosificación , Alcaloides/análisis , Alcaloides/orina , Antioxidantes/análisis , Biomarcadores/sangre , Cafeína/administración & dosificación , Cafeína/análisis , Coffea/química , Café/química , Estudios de Cohortes , Ensayo Cometa , Alemania , Calor , Humanos , Masculino , Cooperación del Paciente , Compuestos de Piridinio/administración & dosificación , Compuestos de Piridinio/análisis , Compuestos de Piridinio/orina , Ácido Quínico/administración & dosificación , Ácido Quínico/análogos & derivados , Ácido Quínico/análisis , Semillas/química
11.
Hautarzt ; 66(4): 277-81, 2015 Apr.
Artículo en Alemán | MEDLINE | ID: mdl-25783213

RESUMEN

The molecular landscape of melanoma is changing more rapidly than ever since new molecular technology approaches have made it possible to examine human melanoma for genetic alterations underlying the disease. In recent years, these approaches have identified new familial melanoma susceptibility genes, most of them also conferring risk to other cancers. This has implications for clinical testing and surveillance. Furthermore, molecular testing of melanoma to determine therapeutic eligibility for targeted therapies is now standard of care and should be familiar to the dermatologist.


Asunto(s)
Biomarcadores de Tumor/genética , Melanoma/diagnóstico , Melanoma/genética , Técnicas de Diagnóstico Molecular/métodos , Neoplasias Cutáneas/diagnóstico , Neoplasias Cutáneas/genética , Animales , Predisposición Genética a la Enfermedad/genética , Pruebas Genéticas/métodos , Humanos , Reproducibilidad de los Resultados , Sensibilidad y Especificidad
12.
Phys Rev Lett ; 112(17): 172501, 2014 May 02.
Artículo en Inglés | MEDLINE | ID: mdl-24836239

RESUMEN

The superheavy element with atomic number Z=117 was produced as an evaporation residue in the (48)Ca+(249)Bk fusion reaction at the gas-filled recoil separator TASCA at GSI Darmstadt, Germany. The radioactive decay of evaporation residues and their α-decay products was studied using a detection setup that allowed measuring decays of single atomic nuclei with half-lives between sub-µs and a few days. Two decay chains comprising seven α decays and a spontaneous fission each were identified and are assigned to the isotope (294)117 and its decay products. A hitherto unknown α-decay branch in (270)Db (Z = 105) was observed, which populated the new isotope (266)Lr (Z = 103). The identification of the long-lived (T(1/2) = 1.0(-0.4)(+1.9) h) α-emitter (270)Db marks an important step towards the observation of even more long-lived nuclei of superheavy elements located on an "island of stability."

13.
Allergy ; 69(10): 1397-404, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24989080

RESUMEN

BACKGROUND: Occurrence, elicitors and treatment of severe allergic reactions are recognized and reported differently between countries. We aimed to collect standardized data throughout Europe on anaphylaxis referred for diagnosis and counselling. METHODS: Tertiary allergy, dermatology and paediatric units in 10 European countries took part in this pilot phase of the first European Anaphylaxis Registry, from June 2011 to March 2014. An online questionnaire was used to collect data on severe allergic reactions based on the medical history and diagnostics. RESULTS: Fifty-nine centres reported 3333 cases of anaphylaxis, with 26.7% below 18 years of age. Allergic reactions were mainly caused by food (children and adults 64.9% and 20.2%, respectively) and insect venom (20.2% and 48.2%) and less often by drugs (4.8% and 22.4%). Most reactions occurred within 30 min of exposure (80.5%); a delay of 4+ hours was mainly seen in drug anaphylaxis (6.7%). Symptom patterns differed by elicitor, with the skin being affected most often (84.1%). A previous, usually milder reaction to the same allergen was reported by 34.2%. The mainstay of first-line treatment by professionals included corticoids (60.4%) and antihistamines (52.8%). Only 13.7% of lay- or self-treated reactions to food and 27.6% of insect anaphylaxis received on-site adrenaline. CONCLUSION: This pilot phase of a pan-European registry for severe allergic reactions provides for the first time data on anaphylaxis throughout Europe, demonstrates its potential functionality and allows a comparison of symptom patterns, elicitors and treatment habits between referral centres and countries.


Asunto(s)
Anafilaxia/epidemiología , Anafilaxia/terapia , Sistema de Registros , Adulto , Niño , Europa (Continente)/epidemiología , Femenino , Humanos , Masculino , Proyectos Piloto
14.
Soft Matter ; 10(18): 3166-70, 2014 May 14.
Artículo en Inglés | MEDLINE | ID: mdl-24668288

RESUMEN

Evidence suggests that the fragility (m) of glass formation both underpins and is sensitive to nanoconfinement effects on the glass transition. Here we present data indicating that nanoconfinement-induced changes in m of freestanding films emerge from a dominance of finite-size-driven fragility suppression over interfacial fragility enhancement.

15.
Spine (Phila Pa 1976) ; 49(2): E11-E16, 2024 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-37159268

RESUMEN

STUDY DESIGN: Retrospective controlled cohort. OBJECTIVE: To evaluate the effect of intraoperative liposomal bupivacaine (LB) infiltration on postsurgical pain management in adolescent idiopathic scoliosis (AIS) patients by analyzing postoperative opioid consumption, ambulation, and length of stay (LOS). SUMMARY OF BACKGROUND DATA: Optimal postoperative pain control for AIS patients undergoing posterior spinal fusion (PSF) is challenging. Multimodal pain management protocols provide adequate analgesia while decreasing opioid consumption. LB was recently approved for pediatric patients; however, use in AIS patients is understudied. METHODS: 119 consecutive patients with AIS who underwent PSF were included. Patients were divided into 2 groups: patients who received LB as erector spinae block in addition to the standard postoperative pain management protocol (Group A), and patients who received only the standard postoperative pain protocol (Group B). Oral morphine equivalents, intravenous opioid and valium consumption, pain scores (VAS), nausea/vomiting, ambulation distance and LOS were assessed. RESULTS: Group A experienced significantly lower total opioid consumption compared to Group B (44.5 mg vs. 70.2 mg). Morphine use was lower in Group A on postoperative day (POD) 0, and oxycodone use was lower in Group A on PODs 1 and 2. There was a higher proportion of patients who used only oral opioids in Group A (81% vs. 41%). Of patients requiring any intravenous opioids, 79% did not receive LB. A significantly higher proportion of LB patients were discharged on POD 2 (55% vs. 27%); therefore, LOS was shorter for Group A. Group A ambulated further postoperatively. There were no differences in pain scores, valium requirements or nausea/vomiting. CONCLUSIONS: LB was associated with decreased total opioid use, shorter LOS, and improved ambulation in AIS patients undergoing PSF. Including LB in multimodal pain management protocols proved effective in reducing opioid use while increasing mobilization in the immediate postoperative period. LEVEL OF EVIDENCE: 3.


Asunto(s)
Trastornos Relacionados con Opioides , Escoliosis , Fusión Vertebral , Humanos , Adolescente , Niño , Analgésicos Opioides/uso terapéutico , Manejo del Dolor/métodos , Escoliosis/cirugía , Escoliosis/etiología , Fusión Vertebral/efectos adversos , Fusión Vertebral/métodos , Estudios Retrospectivos , Dolor Postoperatorio/tratamiento farmacológico , Dolor Postoperatorio/etiología , Morfina/uso terapéutico , Anestésicos Locales/uso terapéutico , Trastornos Relacionados con Opioides/etiología , Bupivacaína/uso terapéutico , Diazepam , Náusea/tratamiento farmacológico , Náusea/etiología , Vómitos/tratamiento farmacológico , Vómitos/etiología
16.
Phys Rev Lett ; 111(2): 021301, 2013 Jul 12.
Artículo en Inglés | MEDLINE | ID: mdl-23889382

RESUMEN

We present new experimental constraints on the elastic, spin-dependent WIMP-nucleon cross section using recent data from the XENON100 experiment, operated in the Laboratori Nazionali del Gran Sasso in Italy. An analysis of 224.6 live days×34 kg of exposure acquired during 2011 and 2012 revealed no excess signal due to axial-vector WIMP interactions with 129Xe and 131Xe nuclei. This leads to the most stringent upper limits on WIMP-neutron cross sections for WIMP masses above 6 GeV/c², with a minimum cross section of 3.5×10(-40) cm² at a WIMP mass of 45 GeV/c², at 90% confidence level.

17.
Int Arch Allergy Immunol ; 161(3): 229-33, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23548307

RESUMEN

BACKGROUND: Gly m 5 and Gly m 6 are known to induce severe reactions in soy-allergic patients. For birch pollen (BP)-allergic patients, the Bet v 1 homologous allergen Gly m 4 is also a potential trigger of generalized severe reactions upon soy consumption. Therefore, reliable component-resolved diagnosis of soy allergy is needed. METHODS: IgE reactivity from sera of 20 patients from a BP environment with reported soy allergy was assessed. Skin prick tests (SPT) with BP and soy drink were performed. Specific IgE for BP, soy, Bet v 1 and Gly m 4 was analyzed by ImmunoCAP. In addition, ISAC microarray profiling was performed. RESULTS: Nineteen of 20 patients were BP allergic (positive SPT and/or CAP results for BP extract and Bet v 1). Eighteen soy-allergic patients were tested positive with soy drink in SPT. Soy CAP results were negative in the majority of tests (15/20), whereas 19/20 sera had specific IgE to Gly m 4. In the microarray approach, 14/20 sera displayed Gly m 4-specific IgE, the additional 6 sera had IgE levels below 0.3 ISAC standardized units. The BP-negative serum had Gly m 5- and Gly m 6-specific IgE which correlated with positive soy ImmunoCAP. CONCLUSIONS: Soy sensitization detected by SPT and Gly m 4 ImmunoCAP were in good qualitative agreement with ISAC results. Soy ImmunoCAP was only specific for Gly m 5 and Gly m 6 sensitization. Gly m 4 ImmunoCAP has a higher sensitivity than ImmunoCAP ISAC. In this patient cohort, Gly m 4 sensitization was linked to the development of severe and generalized allergic reactions upon soy consumption.


Asunto(s)
Alérgenos , Antígenos de Plantas , Pruebas Diagnósticas de Rutina/métodos , Glycine max/inmunología , Hipersensibilidad/diagnóstico , Análisis por Micromatrices/normas , Adolescente , Adulto , Anciano , Alérgenos/inmunología , Antígenos de Plantas/química , Antígenos de Plantas/inmunología , Biomarcadores/análisis , Niño , Femenino , Humanos , Inmunoglobulina E/sangre , Masculino , Persona de Mediana Edad , Sensibilidad y Especificidad
18.
Abdom Radiol (NY) ; 48(1): 186-199, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-35754053

RESUMEN

Rectal MR is the key diagnostic exam at initial presentation for rectal cancer patients. It is the primary determinant in establishing clinical stage for the patient and greatly impacts the clinical decision-making process. Consequently, structured reporting for MR is critically important to ensure that all required information is provided to the clinical care team. The SAR initial staging reporting template has been constructed to address these important items, including locoregional extent and factors impacting the surgical approach and management of the patient. Potential outputs to each item are defined, requiring the radiologist to commit to a result. This provides essential information to the surgeon or oncologist to make specific treatment deisions for the patient. The SAR Initial Staging MR reporting template has now been officially adopted by the NAPRC (National Accreditation Program for Rectal Cancer) under the American College of Surgery. With the recent revisions to the reporting template, this user guide has been revamped to improve its practicality and support to the radiologist to complete the structured report. Each line item of the report is supplemented with clinical perspectives, images, and illustrations to help the radiologist understand the potential implications for a given finding. Common errors and pitfalls to avoid are highlighted. Ideally, rectal MR interpretation should not occur in a vacuum but in the context of a multi-disciplinary tumor board to ensure that healthcare providers use common terminology and share a solid understanding of the strengths and weaknesses of MR.


Asunto(s)
Neoplasias del Recto , Recto , Humanos , Estados Unidos , Estadificación de Neoplasias , Recto/diagnóstico por imagen , Recto/patología , Neoplasias del Recto/patología , Radiólogos , Imagen por Resonancia Magnética/métodos
19.
Phys Rev Lett ; 109(18): 181301, 2012 Nov 02.
Artículo en Inglés | MEDLINE | ID: mdl-23215267

RESUMEN

We report on a search for particle dark matter with the XENON100 experiment, operated at the Laboratori Nazionali del Gran Sasso for 13 months during 2011 and 2012. XENON100 features an ultralow electromagnetic background of (5.3 ± 0.6) × 10(-3) events/(keV(ee) × kg × day) in the energy region of interest. A blind analysis of 224.6 live days × 34 kg exposure has yielded no evidence for dark matter interactions. The two candidate events observed in the predefined nuclear recoil energy range of 6.6-30.5 keV(nr) are consistent with the background expectation of (1.0 ± 0.2) events. A profile likelihood analysis using a 6.6-43.3 keV(nr) energy range sets the most stringent limit on the spin-independent elastic weakly interacting massive particle-nucleon scattering cross section for weakly interacting massive particle masses above 8 GeV/c(2), with a minimum of 2 × 10(-45) cm(2) at 55 GeV/c(2) and 90% confidence level.

20.
Allergy ; 67(5): 691-8, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22335765

RESUMEN

BACKGROUND: Anaphylaxis is the most severe manifestation of an IgE-dependent allergy. Standardized acquired clinical data from large cohorts of well-defined cases are not available. The aim of this study was to analyse the symptom profile and risk factors of anaphylaxis in a large Central European cohort. METHODS: We acquired data from patients in Germany, Austria and Switzerland who experienced a severe allergic reaction defined by the onset of severe pulmonary and/or severe cardiovascular symptoms. The data were gained via an online questionnaire from 83 medical centres specialized in allergy. Data were collected from 2006 to 2010 and analysed by using a multinomial regression model. RESULTS: A total of 2012 paediatric and adult patients were included into the present analysis. The skin (84%) was the most frequently affected organ followed by the cardiovascular (72%) and the respiratory (68%) system. The regression model analysing the onset of cardiovascular versus respiratory symptoms revealed a strong impact of age (adjusted OR = 6.08; 95% CI, 3.35-11.01; P < 0.001). Furthermore, the elicitor food (adjusted OR = 0.29; 95% CI, 0.21-0.41, P < 0.001) and the presence of atopic diseases (adjusted OR = 0.54; 95% CI, 0.40-0.73, P < 0.001) were significantly associated with the onset of respiratory symptoms. CONCLUSION: Data from individuals who experienced anaphylaxis can support the identification of risk factors. The present study indicates that age, the elicitor itself and the presence of atopic diseases have an impact on the symptom profile of anaphylaxis. Identifying further risk factors of anaphylaxis is of significant importance for clinical practice in the future.


Asunto(s)
Anafilaxia/diagnóstico , Anafilaxia/etiología , Adolescente , Adulto , Anciano , Alérgenos/efectos adversos , Alérgenos/inmunología , Anafilaxia/complicaciones , Austria , Niño , Preescolar , Femenino , Alemania , Humanos , Lactante , Recién Nacido , Masculino , Persona de Mediana Edad , Sistema de Registros , Factores de Riesgo , Encuestas y Cuestionarios , Suiza , Ponzoñas/efectos adversos , Ponzoñas/inmunología , Adulto Joven
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