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PURPOSE: Patients with hereditary hypophosphatemic rickets are short and disproportionate and very little information is available on segmental growth, but the body disproportion at adulthood leads us to think that the growth velocity of legs is slower. METHODS: A total of 96 children were included and molecular testing was carried out in 42. Children who reached adult height were classified into two groups according to their compliance to conventional treatment (phosphate supplement and calcitriol). Individual growth records of height and sitting height/height were plotted using Argentine reference data in 96 children and growth curves were estimated by fitting Preece-Baines Model 1 in 19 of the children. RESULTS: Molecular testing revealed sequence deleterious alterations or large deletions in 36/42 patients. During childhood, 76% of children grew below - 1.88 standard deviation score (SDS) and 97% had body disproportion. During adolescence, the mean peak height velocity for the good and poor compliance to treatment groups was 7.8 (0.6) and 5.4 (0.4) cm/year in boys and 7.0 (0.7) and 5.2 (0.8) cm/year in girls, respectively. At adulthood, the median sitting height/height ratio was 2.32 and 6.21 SDS for the good and poor compliance to treatment groups, respectively. The mean pubertal growth spurt of the trunk was -0.8 (1.4) SDS, with a short pubertal growth spurt of - 1.8 (0.4) SDS for limbs in the good compliance group. Median adult height in 13/29 males and 30/67 females was -4.56 and -3.16 SDS, respectively. CONCLUSION: For all patients the growth spurt was slower, secondary to a short growth spurt of limbs, reaching a short adult height with body disproportion that was more prominent in the poor compliance group.
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Raquitismo Hipofosfatémico Familiar , Adolescente , Adulto , Estatura , Calcitriol , Niño , Raquitismo Hipofosfatémico Familiar/genética , Femenino , Humanos , Masculino , Fosfatos , Pubertad , Estudios RetrospectivosRESUMEN
Identification of qualitative variants of von Willebrand disease (VWD) can be a diagnostic challenge because of discrepant results obtained in the multiple laboratory tests available for its appropriate classification. We report two cases of infrequent inherited variants of VWD with unclear preliminary results with the test panel available at the time of first consultation and that were finally diagnosed as a VWD type 2A/IID with a c.8318 G > C, p.Cys2773Ser mutation and a VWD type 2M with c.4225 T > G, p.Val1409Phe mutation, respectively. The description of these two cases highlights that despite the limited diagnostic panel for the evaluation of von Willebrand Factor (VWF) functionality, the multimeric analysis and genetic family studies were fundamental tools to achieve the final diagnosis.
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Enfermedades de von Willebrand/diagnóstico , Adulto , Femenino , Humanos , Persona de Mediana Edad , Adulto JovenRESUMEN
Background: Children with achondroplasia (ACH) appear to lack a pubertal growth spurt in height.Aim To explore the growth spurt in height and its segments sitting height and leg length, in a large sample of ACH cases using growth curve modelling.Subjects and methods: Height and sitting height were measured longitudinally in ACH children, and the data were analysed using the SITAR (SuperImposition by Translation and Rotation) growth model, which estimates a mean growth curve and random effects for individuals defining differences in size, pubertal timing and intensity.Results: Out of 402 ACH children, 85 boys and 75 girls aged 7-20 years had respectively 529 and 454 measurements of height and sitting height, with leg length calculated by difference. SITAR analysis identified peaks in mean height velocity at 13.3 and 11.3 years in boys and girls, with peak velocities of 4.3 and 4.4 cm/year. Mean peak velocity for sitting height was 3.0 cm/year, but leg length showed no peak. The SITAR models explained 92% to 99% of the cross-sectional variance.Conclusion: ACH children do experience a growth spurt in puberty, but only half that of control children. The spurt is due entirely to sitting height, with no leg length spurt.
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Acondroplasia/fisiopatología , Estatura/fisiología , Crecimiento , Pierna/fisiología , Pubertad , Sedestación , Adolescente , Argentina , Niño , Femenino , Humanos , MasculinoRESUMEN
INTRODUCTION: Autism spectrum disorder (ASD) is a set of heterogeneous neurodevelopmental conditions, characterised by difficulties in social communication and restricted, repetitive behaviours and interests. There are several rehabilitative interventions for individuals with ASD but the evidence of their effectiveness is low or moderate overall. The transition phase of ASD individuals from adolescence to adulthood represents an important challenge. Adults with ASD struggle to access employment or independent living. METHODS: In our study, we evaluated the effect of three different high-intensity interventions, namely Applied Behaviour Analysis (ABA), Treatment and Education of Autistic and Communication-Handicapped Children (TEACCH) and Behavioural Educational Intervention (BEI), in 93 ASD (levels 2 and 3) adolescents (age range 12-18 years). RESULTS: Our results showed that all adolescents with ASD reported an improvement of core symptoms, regardless of the type of treatment. CONCLUSIONS: A high intensity intervention ameliorates the core symptoms of ASD, enriching evidence of effectiveness regarding adolescents with ASD.KEY POINTSIndividuals with ASD need lifespan support and they struggle to access employment, independent living and community inclusion.There are several rehabilitative interventions for individuals with ASD but the evidence of their effectiveness in adolescents is insufficient.The main purpose of this study was to evaluate the possible enhancement produced by three intensive interventions (ABA, TEACCH, BEI) of symptom severity and adaptive functions.Results show that independently of the treatment, individuals with ASD decrease in ASD severity.Individuals who were treated with the BEI and TEACCH programmes reported improvements in the adaptive domains.
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Trastorno del Espectro Autista/rehabilitación , Terapia Conductista , Niños con Discapacidad/rehabilitación , Evaluación de Resultado en la Atención de Salud , Educación del Paciente como Asunto , Rehabilitación Psiquiátrica , Adolescente , Niño , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas , Rehabilitación Psiquiátrica/métodosRESUMEN
Children with autism are characterized by an impairment of social interaction and repetitive patterns of behaviour. Autism is a heterogeneous span of disorders with unknown aetiology. Research has grown significantly and has suggested that environmental risk factors acting during the prenatal period could influence the neurodevelopment of offspring. The literature suggests that the maternal diet during pregnancy has a fundamental role in the etiopathogenesis of autism. Indeed, a maternal diet that is high in some nutrients has been associated with an increase or reduction in the risk of develop Autism Spectrum Disorders (ASD). The diet of ASD children is also a key factor for the worsening of ASD symptoms. Children with autism have food selectivity and limited diets due to smell, taste, or other characteristics of foods. This determines eating routines and food intake patterns, with consequent deficiency or excess of some aliments. Several studies have tried to show a possible relationship between nutritional status and autism. In this review we describe, emphasizing the limits and benefits, the main current empirical studies that have examined the role of maternal diet during gestation and diet of ASD children as modifiable risk factors at the base of development or worsening of symptoms of autism.
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Trastorno del Espectro Autista/etiología , Dieta , Fenómenos Fisiologicos Nutricionales Maternos , Efectos Tardíos de la Exposición Prenatal , Trastorno del Espectro Autista/fisiopatología , Trastorno del Espectro Autista/prevención & control , Niño , Dieta Sin Gluten , Dieta Cetogénica , Femenino , Hipersensibilidad a los Alimentos , Preferencias Alimentarias , Microbioma Gastrointestinal , Humanos , Masculino , Estado Nutricional , Embarazo , Factores de Riesgo , Vitamina DRESUMEN
BACKGROUND: Despite successful preclinical testing, 85% of early clinical trials for novel drugs fail. Most futilities originate from molecular mechanisms of the drug(s) tested. It is critically important to develop validated human cell-based model systems in which animal-based research can be translated in order to complement the preclinical in vivo findings prior to implementation of a clinical trial. Obesity is associated with reduced circulating levels of Orexin-A (OX-A) in humans. OX-A increases thermogenesis in rodent brown adipose tissue (AT), yet this phenomenon has not been explored in humans. METHODS: We established a cell-based model system of human brown and white adipocytes and tested the effects of OX-A on thermogenesis. RESULTS: Contrary to published in vivo and in vitro reports in rodents, OX-A treatment alone or in combination with an adrenergic stimulus did neither enhance thermogenesis nor its related transcriptional program in a human in vitro model of brown adipocytes or AT explants. CONCLUSIONS: Translating preclinical findings in human model systems poses a challenge that must be overcome for the development of effective therapeutic compounds and targets.
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Tejido Adiposo Pardo/efectos de los fármacos , Tejido Adiposo Pardo/metabolismo , Metabolismo Energético/efectos de los fármacos , Metabolismo Energético/fisiología , Orexinas/farmacología , Termogénesis/efectos de los fármacos , Termogénesis/fisiología , Adipocitos Marrones/efectos de los fármacos , Adipocitos Marrones/fisiología , Adipocitos Blancos/efectos de los fármacos , Adipocitos Blancos/fisiología , Tejido Adiposo Pardo/citología , Adulto , Anciano , Anciano de 80 o más Años , Animales , Femenino , Humanos , Péptidos y Proteínas de Señalización Intracelular/metabolismo , Masculino , Persona de Mediana EdadRESUMEN
BACKGROUND: Increasing evidence has shown the close link between energy metabolism and the differentiation, function, and longevity of immune cells. Chronic inflammatory conditions such as parasitic infections and cancer trigger a metabolic reprogramming from the preferential use of glucose to the up-regulation of fatty acid oxidation (FAO) in myeloid cells, including macrophages and granulocytic and monocytic myeloid-derived suppressor cells. Asthma is a chronic inflammatory condition where macrophages, eosinophils, and polymorphonuclear cells play an important role in its pathophysiology. OBJECTIVE: We tested whether FAO might play a role in the development of asthma-like traits and whether the inhibition of this metabolic pathway could represent a novel therapeutic approach. METHODS: OVA- and house dust mite (HDM)-induced murine asthma models were used in this study. RESULTS: Key FAO enzymes were significantly increased in the bronchial epithelium and inflammatory immune cells infiltrating the respiratory epithelium of mice exposed to OVA or HDM. Pharmacologic inhibition of FAO significantly decreased allergen-induced airway hyperresponsiveness, decreased the number of inflammatory cells, and reduced the production of cytokines and chemokines associated with asthma. CONCLUSIONS AND CLINICAL RELEVANCE: These novel observations suggest that allergic airway inflammation increases FAO in inflammatory cells to support the production of cytokines, chemokines, and other factors important in the development of asthma. Inhibition of FAO by re-purposing existing drugs approved for the treatment of heart disease may provide a novel therapeutic approach for the treatment of asthma.
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Asma/etiología , Asma/metabolismo , Ácidos Grasos/metabolismo , Sistema Inmunológico/citología , Sistema Inmunológico/inmunología , Sistema Inmunológico/metabolismo , Oxidación-Reducción , Alérgenos , Animales , Asma/tratamiento farmacológico , Asma/patología , Biomarcadores , Quimiocinas/metabolismo , Citocinas/metabolismo , Modelos Animales de Enfermedad , Sistema Inmunológico/efectos de los fármacos , Inmunidad Innata/inmunología , Inmunoglobulina E/inmunología , Masculino , Ratones , Terapia Molecular Dirigida , Hipersensibilidad Respiratoria/inmunología , Hipersensibilidad Respiratoria/metabolismo , Hipersensibilidad Respiratoria/patologíaRESUMEN
OBJECTIVE: To evaluate whether colposcopic measurement of the lesion size at diagnosis and/or human papillomavirus (HPV) genotyping can predict the absence of dysplasia in a large loop excision of the transformation zone (LLETZ) specimen in women treated for squamous intraepithelial lesions/cervical intraepithelial neoplasia (SIL/CIN). DESIGN: Prospective observational study. SETTING: Tertiary university hospital. POPULATION: A cohort of 116 women who underwent LLETZ because of biopsy-proven low-grade SIL/CIN that had persisted for 2 years, or because of a high-grade SIL/CIN diagnosed in the referral visit and squamocolumnar junction completely visible (types 1 or 2, according to the International Federation of Cervical Pathology and Colposcopy, IFCPC). METHODS: After LLETZ the women were classified by histology into the study group (absence of SIL/CIN in the surgical specimen, 28/116, 24.1%) and the control group (SIL/CIN in the LLETZ specimen, 88/116, 75.9%). MAIN OUTCOME MEASURES: The size of the lesion determined in the diagnostic colposcopy and the HPV genotype were evaluated in all women. RESULTS: The lesion size was significantly smaller in the study group (25.7 ± 37.8 versus 84.5 ± 81.7 mm2 ; P < 0.001). A lesion size of ≤12 mm2 and HPV types other than 16 or 18 were associated with an absence of SIL/CIN in the LLETZ specimen (P < 0.001 and P = 0.016, respectively). On multivariate analysis only a lesion size of ≤12 mm2 predicted the absence of SIL/CIN (odds ratio, OR 10.6; 95% confidence interval, 95% CI 3.6-30.6; P < 0.001). A lesion size of ≤12 mm2 had a specificity of 90.9% (95% CI 83.0-95.3%) and a negative predictive value of 86.0% (95% CI 77.5-91.6%) to predict the absence of SIL/CIN in the surgical specimen. CONCLUSIONS: Small lesion size in diagnostic colposcopy could predict the absence of SIL/CIN in the LLETZ specimen. Colposcopy measurement of lesion size prior to LLETZ may avoid unnecessary treatment. TWEETABLE ABSTRACT: Small lesion size in colposcopic evaluation might predict the absence of SIL/CIN in an LLETZ specimen.
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Colposcopía/métodos , Pruebas de ADN del Papillomavirus Humano/métodos , Lesiones Intraepiteliales Escamosas de Cuello Uterino/diagnóstico , Displasia del Cuello del Útero/diagnóstico , Neoplasias del Cuello Uterino/diagnóstico , Adulto , Cuello del Útero/patología , Cuello del Útero/cirugía , Femenino , Estudios de Seguimiento , Genotipo , Humanos , Persona de Mediana Edad , Papillomaviridae/genética , Infecciones por Papillomavirus/diagnóstico , Estudios Prospectivos , Lesiones Intraepiteliales Escamosas de Cuello Uterino/patología , Lesiones Intraepiteliales Escamosas de Cuello Uterino/cirugía , Neoplasias del Cuello Uterino/patología , Displasia del Cuello del Útero/patología , Displasia del Cuello del Útero/cirugíaRESUMEN
OBJECTIVE: To compare the sensitivity of high-risk human papillomavirus (hrHPV) and genotype detection in self-collected urine samples in the morning (U1), and later on (U2), brush-based self-samples (SS), and clinician-taken smears (CTS) for detecting cervical intraepithelial neoplasia grade 2+ (CIN2+) in a colposcopic referral population. DESIGN: Cross-sectional single-centre study. SETTING: A colposcopy clinic in Spain. POPULATION: A cohort of 113 women referred for colposcopy after an abnormal Pap smear. METHODS: Women undergoing colposcopy with biopsy for abnormal Pap smears were sent a device (Colli-Pee™, Novosanis, Wijnegem, Belgium) to collect U1 on the morning of colposcopy. U2, CTS, and SS (Evalyn brush™, Rovers Medical Devices B.V., Oss, the Netherlands) were also analysed. All samples were tested for HPV DNA using the analytically sensitive SPF10-DEIA-LiPA25 assay and the clinically validated GP5+/6+-EIA-LMNX. MAIN OUTCOME MEASURES: Histologically confirmed CIN2+ and hrHPV positivity for 14 high-risk HPV types. RESULTS: Samples from 91 patients were analysed. All CIN3 cases (n = 6) tested positive for hrHPV in CTS, SS, U1, and U2 with both HPV assays. Sensitivity for CIN2+ with the SPF10 system was 100, 100, 95, and 100%, respectively. With the GP5+/6+ assay, sensitivity was 95% in all sample types. The sensitivities and specificities for both tests on each of the sample types did not significantly differ. There was 10-14% discordance on hrHPV genotype. CONCLUSIONS: CIN2+ detection using HPV testing of U1 shows a sensitivity similar to that of CTS or brush-based SS, and is convenient. There was substantial to almost excellent agreement between all samples on genotype with both hrHPV assays. There was no advantage in testing U1 compared with U2 samples. TWEETABLE ABSTRACT: Similar CIN2+ sensitivity for HPV testing in first-void urine, physician-taken smear and brush-based self-sample.
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ADN Viral/orina , Autoevaluación Diagnóstica , Prueba de Papanicolaou , Infecciones por Papillomavirus/diagnóstico , Displasia del Cuello del Útero/diagnóstico , Neoplasias del Cuello Uterino/diagnóstico , Frotis Vaginal/métodos , Adolescente , Adulto , Biomarcadores/orina , Colposcopía , Estudios Transversales , Femenino , Humanos , Persona de Mediana Edad , Papillomaviridae/genética , Papillomaviridae/aislamiento & purificación , Infecciones por Papillomavirus/complicaciones , Infecciones por Papillomavirus/genética , Infecciones por Papillomavirus/orina , Estudios Prospectivos , Sensibilidad y Especificidad , Triaje , Neoplasias del Cuello Uterino/patología , Neoplasias del Cuello Uterino/orina , Neoplasias del Cuello Uterino/virología , Adulto Joven , Displasia del Cuello del Útero/patología , Displasia del Cuello del Útero/orina , Displasia del Cuello del Útero/virologíaRESUMEN
Several preparations were obtained from the aerial parts of predomesticated Lavandula luisieri, including the essential oil and ethanolic, hexane, and ethyl acetate extractives. Additionally, pilot plant vapor pressure extraction was carried out at a pressure range of 0.5-1.0 bar to give a vapor pressure oil and an aqueous residue. A chemical study of the hexane extract led to the isolation of six necrodane derivatives (1, 2, and 4-7), with four of these (1, 2, 5, and 7) being new, as well as camphor, a cadinane sesquiterpene (9), tormentic acid, and ursolic acid. The EtOAc and EtOH extracts contained a mixture of phenolic compounds with rosmarinic acid being the major component. Workup of the aqueous residue resulted in the isolation of the necrodane 3 and (1R*,2S*,4R*)-p-menth-5-ene-1,2,8-triol (8), both new natural compounds. The structures of the new compounds were established based on their spectroscopic data. The phytotoxic and nematicidal activities of these compounds were evaluated.
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Antinematodos/aislamiento & purificación , Antinematodos/farmacología , Terpenos/aislamiento & purificación , Terpenos/farmacología , Animales , Antiinfecciosos/farmacología , Antinematodos/química , Áfidos/efectos de los fármacos , Lavandula/química , Estructura Molecular , Monoterpenos , Resonancia Magnética Nuclear Biomolecular , Aceites Volátiles/análisis , Componentes Aéreos de las Plantas/química , Sesquiterpenos/química , Sesquiterpenos/aislamiento & purificación , Sesquiterpenos/farmacología , España , Spodoptera/efectos de los fármacos , Terpenos/química , Triterpenos/aislamiento & purificación , Ácido UrsólicoRESUMEN
PURPOSE OF INVESTIGATION: To determine the accuracy of carcinoembryonic antigen (CEA), cancer antigen (CA) 15.3, CA 19.9, and CA 125 for diagnosis of mucinous ovarian cancer (MOC). MATERIALS AND METHODS: Samples were collected preoperatively from patients with mucinous ovarian tumor. The following variables were analysed: CEA, CA 15.3, CA 19.9, and CA 125. After surgery, histology and stage were determined according to FIGO-classification. Patients were classified into two groups according to the diagnosis of ovarian biopsy: NOT MOC and MOC. RESULTS: The authors studied 94 patients with ages between 15 and 80 years (median = 43). Eighty-two patients were NOT MOC (68 mucinous ovarian cystadenomas and 14 mucinous borderline ovarian tumors) and 12 were MOC. All MOC patients were in FIGO Stages I or II. No statistically significant differences were found between MOC and NOT MOC patients according to CEA and CA 15.3 (p > 0.05). All MOC patients had abnormal serum CA 19.9 and/or CA 125 levels. Using CA 19.9 and CA 125, we performed a linear regression formula CA 19.9+125 = 0.00102 x CA 19.9 + 0.00057 x CA 125. AUCs values were 0.862 (p = 0.0002), 0.829 (p = 0.0021), and 0.911 (p = 0.0001) for CA 19.9, CA 125, and CA 19.9 + 125, respectively. CA 19.9 + 125 exhibited 95.1% specificity and 66.7% sensitivity, increased by 16.7% sensitivity compared with using only CA 19.9 or CA 125. CONCLUSIONS: Preoperative CA 19.9 and CA 125 levels showed high diagnosis efficacy to predict whether a mucinous ovarian tumour is benign or malignant. Using both markers simultaneously increases the sensitivity for diagnosis of MOC.
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Adenocarcinoma Mucinoso/diagnóstico , Antígeno Ca-125/sangre , Antígeno CA-19-9/sangre , Neoplasias Ováricas/diagnóstico , Adenocarcinoma Mucinoso/sangre , Adenocarcinoma Mucinoso/patología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Antígeno Carcinoembrionario/análisis , Femenino , Humanos , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias Ováricas/sangre , Neoplasias Ováricas/patología , Adulto JovenRESUMEN
The search for Majorana bound states in solid-state physics has been limited to materials that display a gap in their bulk spectrum. We show that such unpaired states appear in certain quasi-one-dimensional Josephson-junction arrays with gapless bulk excitations. The bulk modes mediate a coupling between Majorana bound states via the Ruderman-Kittel-Yosida-Kasuya mechanism. As a consequence, the lowest energy doublet acquires a finite energy difference. For a realistic set of parameters this energy splitting remains much smaller than the energy of the bulk eigenstates even for short chains of length Lâ¼10.
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BACKGROUND: Severe deficiency of ADAMTS13 activity leads to von Willebrand factor (VWF) ultralarge multimers with high affinity for platelets, causing thrombotic thrombocytopenic purpura. Other pathological conditions with moderate ADAMTS13 activity exhibit a thrombotic risk. We examined the ADAMTS13 activity in systemic lupus erythematosus (SLE) and its value as a thrombotic biomarker. METHODS: ADAMTS13 activity, VWF antigen and multimeric structure, and vascular cell adhesion molecule 1 (VCAM-1) were measured in plasma samples from 50 SLE patients and 50 healthy donors. Disease activity (systemic lupus erythematosus disease activity index; SLEDAI) and organ damage (systemic lupus international collaborating clinics) scores, thrombotic events, antiphospholipid syndrome (APS) and antiphospholipid antibodies (aPLs) were registered. RESULTS: SLE patients showed decreased ADAMTS13 activity and high VWF levels compared with controls (66 ± 27% vs. 101 ± 8%, P < 0.01, and 325 ± 151% vs. 81 ± 14%, P < 0.001). VCAM-1 levels were higher in SLE patients (P < 0.05). Considering three groups of SLE patients depending on ADAMTS13 activity (>60%, 60-40% and <40%), comparative analysis showed significant association between ADAMTS13 activity and SLEDAI (P < 0.05), presence of aPLs (P < 0.001), APS (P < 0.01) and thrombotic events (P < 0.01). Reduced ADAMTS13 activity together with increased VWF levels were especially notable in patients with active disease and with aPLs. CONCLUSION: ADAMTS13 activity, in combination with other laboratory parameters, could constitute a potential prognostic biomarker of thrombotic risk in SLE.
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Proteínas ADAM/sangre , Lupus Eritematoso Sistémico/sangre , Púrpura Trombocitopénica Trombótica/sangre , Trombosis/sangre , Proteína ADAMTS13 , Adolescente , Adulto , Anticuerpos Antifosfolípidos/sangre , Síndrome Antifosfolípido/sangre , Biomarcadores/sangre , Plaquetas/metabolismo , Plaquetas/patología , Femenino , Humanos , Lupus Eritematoso Sistémico/enzimología , Lupus Eritematoso Sistémico/patología , Masculino , Persona de Mediana Edad , Púrpura Trombocitopénica Trombótica/enzimología , Púrpura Trombocitopénica Trombótica/patología , Factores de Riesgo , Índice de Severidad de la Enfermedad , Trombosis/enzimología , Trombosis/patología , Molécula 1 de Adhesión Celular Vascular/sangre , Adulto Joven , Factor de von Willebrand/metabolismoRESUMEN
OBJECTIVE: Using highly sensitive polymerase chain reaction (PCR) techniques, we reanalysed all cervical carcinomas (CCs) found to be human papillomavirus (HPV)-negative by Hybrid Capture 2 (HC2) to determine the prevalence of true HPV-negativity. We also evaluated the characteristics of the patients with tumours with confirmed HPV-negativity. DESIGN: Observational study. SETTING: Barcelona, Spain. POPULATION: A cohort of 136 women with CC (32 adenocarcinomas, 104 squamous cell carcinomas) who had pre-treatment HC2 testing. METHODS: All negative cases were reanalysed and genotyped for HPV using three PCR assays (SPF10, GP5+/6+ and E7-specific assay). MAIN OUTCOME MEASURES: Percentage of confirmed HPV-negative and HPV-positive tumours. Clinicopathological features and disease-free survival (DFS) and overall survival (OS) of both groups. RESULTS: Fourteen of 136 women (10.2%) were negative for HPV by HC2. After reanalysis by PCR-based techniques only 8/136 (5.8%) tumours were confirmed as HPV-negative, whereas in six cases different HPVs were identified [HPV-11, -16 (two tumours), -18, -45, and -68]. Confirmed HPV-negativity was more frequent in adenocarcinomas than in squamous cell carcinomas (5/32, 15.6% versus 3/104, 2.9%, respectively; P = 0.017). Patients with CCs with confirmed HPV-negativity had significantly worse DFS than women with HPV-positive tumours [51.9 months (95% CI 12.2-91.7 months) versus 109.9 months (95% CI 98.2-121.5 months); P = 0.010]. In the multivariate analysis HPV-negativity and International Federation of Gynecology and Obstetrics (FIGO) staging were associated with increased risk of progression and mortality. CONCLUSIONS: An HC2-negative result is an uncommon finding in women with CC, but in almost half of these cases HPVs are identified by more sensitive techniques. CCs with confirmed HPV-negativity are more frequently adenocarcinomas, and seem to be associated with worse DFS.
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Adenocarcinoma Mucinoso/patología , Carcinoma Adenoescamoso/patología , Carcinoma de Células Escamosas/patología , ADN Viral/genética , Papillomaviridae/genética , Infecciones por Papillomavirus/genética , Neoplasias del Cuello Uterino/patología , Adenocarcinoma/patología , Adenocarcinoma/virología , Adenocarcinoma Mucinoso/virología , Adulto , Anciano , Carcinoma Adenoescamoso/virología , Carcinoma de Células Escamosas/virología , Estudios de Cohortes , Femenino , Humanos , Persona de Mediana Edad , Infecciones por Papillomavirus/diagnóstico , Reacción en Cadena de la Polimerasa , Pronóstico , Neoplasias del Cuello Uterino/virologíaRESUMEN
The aim of this study was to determine the temperature threshold that triggers an increase in heat-induced mortality in Zaragoza, Spain to determine the impact of extreme heat on mortality and in-hospital cost. A longitudinal ecological study was conducted according to an autoregressive integrated moving average model of a time series for daily deaths and to determine the relative risk of mortality for each degree that the temperature threshold was exceeded. Mortality showed a statistically significant increase when the daily maximum temperature exceeded 38 °C. A Relative Risk was 1.28 with a 95 % confidence interval (95 %CI:1.08-1.57) This threshold temperature didn't change over time. A total of 107 (95 %CI:42-173) heat-attributable deaths were estimated for the period 2002-2006, and the in-hospital estimated cost of these deaths reach 426,087(95 %CI. 167,249- 688,907). The articulation of preventive measures to minimize the impact of extreme heat on human health is necessary because of the mortality-temperature relationship.
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Calor Extremo/efectos adversos , Mortalidad , Análisis por Conglomerados , Calor/efectos adversos , Humanos , Rayos Infrarrojos , Tiempo de Internación/economía , Estudios Longitudinales , Análisis Multivariante , España/epidemiologíaRESUMEN
OBJECTIVE: It has been suggested that colposcopy can miss a significant percentage of high-grade cervical intraepithelial neoplasia (CIN2+). Improved disease ascertainment was evaluated by taking multiple lesion-directed biopsies. METHODS: In a cross-sectional multicenter study in the Netherlands and Spain, 610 women referred to colposcopy following abnormal cervical cytology results were included. Multiple directed biopsies were collected from lesions and ranked according to impression. A non-directed biopsy of normal-appearing tissue was added if fewer than four biopsies were collected. We evaluated the additional CIN2+ yield for one and two directed biopsies. Colposcopic images were reviewed for quality control. RESULTS: In women with at least two lesion-directed biopsies the yield for CIN2+ increased from 51.7% (95%CI; 45.7-57.7) for one directed biopsy to 60.4% (95%CI; 54.4-66.2, p<0.001) for two biopsies. The highest CIN2+ yield was observed in women who were HPV16-positive, had high-grade squamous intraepithelial lesion (HSIL) cytology, and high-grade colposcopy impression. The yield increased from 83.1% (95%CI; 71.5-90.5) with one directed biopsy to 93.2% (95%CI; 83.8-97.3) with two directed biopsies. Only 4.5% additional CIN2+ were detected in biopsies not targeting abnormal areas on the cervix. CONCLUSIONS: A second lesion-directed biopsy is associated with a significant increase in CIN2+ detection. Performing a second lesion-directed biopsy and using a low threshold for abnormality of any acetowhitening should become the standard clinical practice of colposcopy.
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Cuello del Útero/patología , Colposcopía/métodos , Infecciones por Papillomavirus/patología , Lesiones Intraepiteliales Escamosas de Cuello Uterino/patología , Displasia del Cuello del Útero/patología , Neoplasias del Cuello Uterino/patología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Biopsia/métodos , Estudios Transversales , ADN Viral/genética , Femenino , Papillomavirus Humano 16/genética , Humanos , Persona de Mediana Edad , Infecciones por Papillomavirus/complicaciones , Infecciones por Papillomavirus/virología , Lesiones Intraepiteliales Escamosas de Cuello Uterino/complicaciones , Lesiones Intraepiteliales Escamosas de Cuello Uterino/diagnóstico , Neoplasias del Cuello Uterino/complicaciones , Neoplasias del Cuello Uterino/diagnóstico , Adulto Joven , Displasia del Cuello del Útero/complicaciones , Displasia del Cuello del Útero/diagnósticoRESUMEN
OBJECTIVE: To study colposcopic performance in diagnosing high-grade cervical intraepithelial neoplasia or cervical cancer (CIN2+ and CIN3+) using colposcopic characteristics and high-risk human papillomavirus (hrHPV) genotyping. DESIGN: Cross-sectional multicentre study. SETTING: Two colposcopy clinics in The Netherlands and Spain. POPULATION: Six hundred and ten women aged 17 years and older referred for colposcopy because of abnormal cytology. METHODS: A cervical smear was obtained. Colposcopists identified the worst lesion, graded their impression and scored the colposcopic characteristics of the lesions. Up to four biopsies were collected, including one biopsy from visually normal tissue. MAIN OUTCOME MEASURES: CIN2+ and CIN3+, positive for HPV16 or other high-risk HPV types (non-16 hrHPV-positive). RESULTS: The mean age in HPV16-positive CIN2+ women was 35.1 years compared with 39.1 years in women with other hrHPV types (P = 0.002). Sensitivity for colposcopy to detect CIN2+ was 87.9% (95%CI 83.2-91.5), using colposcopic cut-off of 'any abnormality'. The remaining CIN2+ were found by a biopsy from visually normal tissue or endocervical curettage (ECC). Detection of CIN2+ by lesion-targeted biopsies was not different between HPV16-positive women [119/135; 88.1% (95%CI 81.2-92.9)] and non-16 hrHPV-positive women [100/115; 87.0% (95%CI 79.1-92.3); P = 0.776]. In multivariate analysis, 'acetowhitening' [odds ratio (OR) 1.91, 95%CI 1.56-3.17], 'time of appearance' (OR 1.95, 95%CI 1.21-3.15) and 'lesion >25% of visible cervix' (OR 2.25, 95%CI 1.44-3.51) were associated with CIN2+. CONCLUSIONS: In this population following European screening practice, HPV16-related CIN2+ lesions were detected at younger age and showed similar colposcopic impression as non-16 hrHPV high-grade lesions. There was no relationship between any of the colposcopic characteristics and HPV16 status.