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1.
ESMO Open ; 9(3): 102941, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38452437

RESUMEN

BACKGROUND: Oncologists tend to under-report subjective symptoms during cancer treatment. This study describes the under-reporting rate of selected symptoms and explores its association with overall survival (OS). A secondary aim is to test the association of patient-reported symptoms with OS. PATIENTS AND METHODS: This is a post hoc analysis on data pooled from 12 randomized trials, promoted by the National Cancer Institute of Naples (Italy), enrolling patients between 2002 and 2019, with published primary analyses. Occurrence and grade of six side-effects (anorexia, nausea, vomiting, constipation, diarrhea and fatigue) reported by physicians were compared with corresponding symptoms reported by patients in quality-of-life (QoL) questionnaires. Under-reporting was defined as the rate of cases reported grade 0 by the physician while grade ≥1 by the patient. Prognostic value was tested in a multivariable model stratified by trial, including age, sex and performance status as confounders. A landmark threshold was defined for OS analyses. RESULTS: 3792 patients with advanced lung, ovarian, pancreatic, breast or colorectal cancer were pooled; 2603 (68.6%) were eligible having at least one toxicity assessment and one QoL questionnaire, before the first planned disease restaging. Concordance between physicians' and patients' reporting was low with Cohen's k coefficients ranging from 0.03 (fatigue) to 0.33 (vomiting). Under-reporting ranged from 52.7% (nausea) to 80.5% (anorexia), and was not associated with OS. Patient-reported anorexia, vomiting and fatigue ('a little' or more) were significantly associated with shorter OS. CONCLUSIONS: Under-reporting of treatment side-effects is frequent, but it does not affect OS. Patients' reported symptoms should be used for prognostic evaluation.


Asunto(s)
Neoplasias , Calidad de Vida , Humanos , Anorexia/complicaciones , Fatiga/etiología , Náusea/etiología , Neoplasias/terapia , Neoplasias/complicaciones , Pronóstico , Vómitos , Ensayos Clínicos Controlados Aleatorios como Asunto
2.
ESMO Open ; 8(6): 102192, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38052104

RESUMEN

BACKGROUND: The Patient Reported Outcome for Fighting FInancial Toxicity (PROFFIT) questionnaire was developed to measure financial toxicity (FT) and identify its determinants. The aim of the present study was to confirm its validity in a prospective cohort of patients receiving anticancer treatment. PATIENTS AND METHODS: From March 2021 to July 2022, 221 patients were enrolled at 10 Italian centres. Selected items of the EORTC-QLQ-C30 questionnaire represented the anchors, specifically, question 28 (Q-28) on financial difficulties, and questions 29-30 measuring global health status/quality of life (HR-QOL). The study had 80% power to detect a 0.20 correlation coefficient (r) between anchors and PROFFIT-score (items 1-7, range 0-100, 100 indicating maximum FT) with bilateral alpha 0.05 and 80% power. Confirmatory factor analysis was conducted. FT determinants (items 8-16) were described. RESULTS: Median age of patients was 65 years, 116 (52.5%) were females, 96 (43.4%) had low education level. Confirmatory factor analysis confirmed goodness of fit of the PROFFIT-score. Significant partial correlation of PROFFIT-score was found with Q-28 (r = 0.51) and HR-QOL (r = -0.23). Mean (SD) PROFFIT-score at baseline was 36.5 (24.9); it was statistically significantly higher for patients living in South Italy, those with lower education level, those who were freelancer/unemployed at diagnosis and those who reported significant economic impact from the COVID-19 pandemic. Mean (SD) scores of determinants ranged from 17.6 (27.1) for item 14 (support from medical staff) to 49.0 (36.3) for item 10 (expenses for medicines or supplements). PROFFIT-score significantly increased with worsening response to determinants. CONCLUSIONS: External validation of PROFFIT-score in an independent sample of patients was successful. The instrument is now being used in clinical studies.


Asunto(s)
Neoplasias , Calidad de Vida , Femenino , Humanos , Anciano , Masculino , Estudios Prospectivos , Estrés Financiero , Pandemias , Neoplasias/terapia , Encuestas y Cuestionarios , Medición de Resultados Informados por el Paciente
3.
Ann Ig ; 35(4): 379-402, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37184351

RESUMEN

Introduction: Communication has a crucial role in public health, because it becomes an essential component of prevention; it is also a proactive tool in health promotion. From a planning perspective, it is appropriate to use communication means that can help the bidirectional communication process, such as face-to-face communication and telephone communication. Materials and methods: In relation to this, the Italian National Institute of Health has developed the "Modello Operativo Comunicativo-Relazionale" (the "Communicative-Relational Operating Model"). It is based on the fundamental skills of the counselling, this gives a protocol to the health professionals that is replicable and organized and it allows health professionals to carry out a telephone communication that is efficient with the user through technical-scientific and communication-relational skills. The goal is to answer in a customized way to the various users' health needs. The Operating Model was created by experts of the National AIDS and Sexually Transmitted Infections Helpline of the Operational Unit of Psycho-Socio-Behavioural Research, Communication, Training, of the Infectious Diseases Department. Later, the Operating Model was proposed to the experts of the Helplines in the National Centre on Addictions and Doping and the National Helpline of the National Centre for Rare Diseases in the National Institute of Health that integrated this method into their telephone approach. Results: The Operating Model illustrated above was applied to several helplines of the National Institute of Health as an example of correct scientific information, updated and customized on sexual transmitted infections, addictions and rare diseases. Conclusions: This article aims to illustrate the Operating Model, the theoretical prerequisites that subtend it and its possible application in the different public health structures that use the telephone for a profes-sional relationship with their users.


Asunto(s)
Salud Pública , Enfermedades Raras , Humanos , Consejo/métodos , Comunicación , Teléfono , Italia
4.
Eur J Paediatr Dent ; 24(2): 145-150, 2023 06 09.
Artículo en Inglés | MEDLINE | ID: mdl-37057341

RESUMEN

AIM: Dental treatment of patients with Autism Spectrum Disorders (ASD) is challenging due to difficulties in social interactions, hypersensitivity to sensory stimuli, various degrees of cognitive and developmental issues, poor collaboration, limited capacity to manage emotions, stereotyped movements, hyperactivity, limited adaptation to new situations and environments. Data on the type of treatment required are scarce. This study investigates the oral health status of ASD patients, the possibilities of chair treatment and the need for dental treatments under general anaesthesia (GA). METHODS: One hundred sixty-nine medical records, from 2005 to 2018, of patients with ASD were examined. Patients undergoing chair or general anaesthesia were assigned to two groups according age (younger or older than 14 years old). The level of cooperation was classified into four categories: none, poor, fair, good. CONCLUSION: Primary prevention, setting up a routine oral hygiene at home and regular dental examinations, internalised like a habit by patients, are the main instruments to maintain oral health in ASD patients. When non-cooperative patients need urgent treatment, safe and high-level dental therapies should be performed under GA.


Asunto(s)
Trastorno del Espectro Autista , Trastorno Autístico , Humanos , Adolescente , Trastorno Autístico/complicaciones , Trastorno Autístico/terapia , Salud Bucal , Trastorno del Espectro Autista/complicaciones , Trastorno del Espectro Autista/terapia , Higiene Bucal , Anestesia General
5.
Br J Dermatol ; 185(5): 988-998, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-33959940

RESUMEN

BACKGROUND: Genome-wide association studies (GWASs) have identified genes influencing skin ageing and mole count in Europeans, but little is known about the relevance of these (or other genes) in non-Europeans. OBJECTIVES: To conduct a GWAS for facial skin ageing and mole count in adults < 40 years old, of mixed European, Native American and African ancestry, recruited in Latin America. METHODS: Skin ageing and mole count scores were obtained from facial photographs of over 6000 individuals. After quality control checks, three wrinkling traits and mole count were retained for genetic analyses. DNA samples were genotyped with Illumina's HumanOmniExpress chip. Association testing was performed on around 8 703 729 single-nucleotide polymorphisms (SNPs) across the autosomal genome. RESULTS: Genome-wide significant association was observed at four genome regions: two were associated with wrinkling (in 1p13·3 and 21q21·2), one with mole count (in 1q32·3) and one with both wrinkling and mole count (in 5p13·2). Associated SNPs in 5p13·2 and in 1p13·3 are intronic within SLC45A2 and VAV3, respectively, while SNPs in 1q32·3 are near the SLC30A1 gene, and those in 21q21·2 occur in a gene desert. Analyses of SNPs in IRF4 and MC1R are consistent with a role of these genes in skin ageing. CONCLUSIONS: We replicate the association of wrinkling with variants in SLC45A2, IRF4 and MC1R reported in Europeans. We identify VAV3 and SLC30A1 as two novel candidate genes impacting on wrinkling and mole count, respectively. We provide the first evidence that SLC45A2 influences mole count, in addition to variants in this gene affecting melanoma risk in Europeans.


Asunto(s)
Melanoma , Envejecimiento de la Piel , Adulto , Predisposición Genética a la Enfermedad , Estudio de Asociación del Genoma Completo , Genotipo , Humanos , Polimorfismo de Nucleótido Simple/genética , Envejecimiento de la Piel/genética
6.
Mater Today Bio ; 10: 100109, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33997760

RESUMEN

Fistulas are abnormal connections between two body parts that can impair the quality of life. The use of biological glues represents the least invasive procedure to fill the fistula; however, it is limited by the need of multiple injections, the persistence of infection and the failure in the treatment of high-output fistulas. We describe herein the use of an injectable nanocomposite hydrogel that is able to form in situ a tissue-mimicking matrix as an innovative material for the treatment of esophageal fistulas. Injectable hydrogels that have the dual advantage of being implantable with a minimally invasive approach and of adapting their shape to the target cavity, while the introduction of mesoporous silica nanoparticles opens the possibility of drug/biomolecules delivery. The hydrogel is based on hyaluronic acid (HA), the crosslinking process occurs at physiological conditions leading to a hydrogel made of >96% by water and with a large-pore micro-architecture. The kinetic profile of the hydrogel formation is studied as a function of HA molecular weight and concentration with the aim of designing a material that is easily injectable with an endoscopic needle, is formed in a time compatible with the surgical procedure and has final mechanical properties suitable for cell proliferation. The in vivo experiments (porcine model) on esophageal-cutaneous fistulas, showed improved healing in the animals treated with the hydrogel compared with the control group.

7.
Rev. chil. reumatol ; 37(1): 34-38, 2021.
Artículo en Español | LILACS | ID: biblio-1400386

RESUMEN

La presencia de manifestaciones neuropsiquiátricas en pacientes reumatológicos trae consigo un gran desafío diagnóstico que exige una mirada amplia, desde las bases de la medicina interna, a fin de poder orientar un estudio adecuado y el tratamiento oportuno. Junto con ello, el permanente diálogo e intercambio de miradas clínicas con otras especialidades permite tener un enfoque multidisciplinario que enriquece el abordaje de estas presentaciones complejas.


The presence of neuropsychiatric manifestations in rheumatological patients brings with it a great diagnostic challenge that requires a broad view, from the foundations of internal medicine, in order to guide the appropriate study and timely treatment of these patients. Along with this, the permanent dialogue and exchange of clinical views with other specialties allows for a multidisciplinary approach that enriches the approach to these complex presentations.


Asunto(s)
Humanos , Masculino , Femenino , Adulto , Persona de Mediana Edad , Vasculitis por Lupus del Sistema Nervioso Central/terapia , Lupus Eritematoso Sistémico/complicaciones , Lupus Eritematoso Sistémico/terapia , Azatioprina , Ciclofosfamida/uso terapéutico , Inmunosupresores
8.
J Hosp Infect ; 106(4): 657-662, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-33058941

RESUMEN

BACKGROUND: The presence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in saliva has alerted health professionals to the possibility of contamination by aerosols generated in a number of procedures. The indication of preoperative mouthwash containing 1% hydrogen peroxide for reducing the viral load of SARS-CoV-2 in saliva prior to oral procedures has been significantly disseminated through several citations and influenced various dental associations in the elaboration of dental care protocols during this pandemic period, including patients admitted to hospital wards and intensive care units. AIM: To Our aim was to perform a systematic review to answer the following question: does hydrogen peroxide mouthwash (at any concentration) have a virucidal effect? METHODS: The Cochrane, LILACS, PubMed, Scopus, and Embase databases were searched by using the following key-words: 'hydrogen peroxide', 'mouthwash', 'mouth rinse', 'rinse', 'oral rinse', 'mouth bath', 'mouth wash', and 'mouth washes'. Reviews, letters to the editor, personal opinions, book chapters, case reports, congress abstracts, studies with animals and studies on mouthwash containing other compounds other than hydrogen peroxide were excluded. FINDINGS: During the initial search 1342 articles were identified on the five electronic databases. After excluding some duplicates, 976 articles remained. Only studies assessing the virucidal effect of hydrogen peroxide mouthwash were selected, regardless of publication date. CONCLUSION: After reading titles and abstracts, no article met the eligibility criteria. In conclusion, there is no scientific evidence supporting the indication of hydrogen peroxide mouthwash for control of the viral load regarding SARS-CoV-2 or any other viruses in saliva.


Asunto(s)
Antiinfecciosos Locales/farmacología , COVID-19/virología , Peróxido de Hidrógeno/farmacología , SARS-CoV-2/efectos de los fármacos , Aerosoles/efectos adversos , COVID-19/diagnóstico , COVID-19/epidemiología , Personal de Salud/educación , Humanos , Control de Infecciones/métodos , Antisépticos Bucales/farmacología , Antisépticos Bucales/provisión & distribución , SARS-CoV-2/genética , Saliva/virología , Carga Viral/efectos de los fármacos
9.
Rev Sci Instrum ; 91(7): 074712, 2020 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-32752818

RESUMEN

A module of a wireless high voltage generator was tested immersed in both gaseous and liquid environments providing electrical insulation. The overall performance of the module as well as a detailed performance of the key components are reported, and a comparison between the results in gas and liquid is given. The tests performed on the liquid dielectric show that it is a valid alternative to high pressure gas electrical insulation.

10.
Expert Opin Pharmacother ; 21(14): 1667-1674, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32674616

RESUMEN

INTRODUCTION: Uterine fibroids (UF) are benign tumors common in premenopausal women, with strong impact on the health-care systems. For many years, surgery represented the only therapy for symptomatic fibroids. However, clinicians are observing a switch from surgery to noninvasive methods; in particular, medical treatment has been shown to be efficacious in obtaining a bleeding reduction and in ameliorating patient conditions. AREAS COVERED: The authors review the current options available for the treatment of women with UF, with a special focus on the newest one, relugolix. It is an orally active non-peptide Gonadotropin-releasing hormone (GnRH)-receptor antagonist recently licensed for women with symptomatic fibroids. Relugolix is a well-tolerated safe drug; it is effective in inducing a dose-dependent decrease in menstrual blood loss, with faster reduction of heavy menstrual bleeding (HMB) and a greater shrinkage in fibroid volume compared to the current standard of GnRH agonist treatment. EXPERT OPINION: Relugolix is a promising drug for the non-surgical treatment of women with UF. To date, the only published data come from a well-selected Japanese female population study while results from worldwide ongoing studies are ongoing in order to confirm the efficacy of this GnRH agonist receptor.


Asunto(s)
Leiomioma/tratamiento farmacológico , Compuestos de Fenilurea/uso terapéutico , Pirimidinonas/uso terapéutico , Receptores LHRH/antagonistas & inhibidores , Neoplasias Uterinas/tratamiento farmacológico , Femenino , Humanos , Histerectomía , Leiomioma/metabolismo , Leiomioma/cirugía , Menstruación/efectos de los fármacos , Compuestos de Fenilurea/administración & dosificación , Compuestos de Fenilurea/efectos adversos , Compuestos de Fenilurea/farmacocinética , Premenopausia/efectos de los fármacos , Pirimidinonas/administración & dosificación , Pirimidinonas/efectos adversos , Pirimidinonas/farmacocinética , Ensayos Clínicos Controlados Aleatorios como Asunto , Resultado del Tratamiento , Neoplasias Uterinas/metabolismo , Neoplasias Uterinas/cirugía
11.
Rev Sci Instrum ; 91(3): 033501, 2020 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-32259955

RESUMEN

The Electron Cyclotron Resonance (ECR) Charge Breeding (CB) technique consists in transforming the charge state of an input beam from 1+ to n+ to allow post-acceleration. The optimization of an ECR-CB requires a deep investigation of ion dynamics and electron heating, the latter being influenced by the microwave-to-plasma coupling mechanism. In this paper, we report the electromagnetic analysis of the microwave-to-plasma coupling of the Selective Production of Exotic Species charge breeder (SPES-CB) plasma chamber, taking into account the presence of the plasma through its dielectric tensor, performed using a self-consistent approach. In particular, the effect of two different frequencies on the plasma-wave interaction will be shown, in terms of electromagnetic properties such as plasma-absorbed power, giving numerical evidence of the frequency tuning effect.

12.
J Dairy Sci ; 103(5): 4606-4617, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-32147267

RESUMEN

A positive relationship between handlers and animals in farm systems is essential because the human-animal relationship has implications for welfare and productivity. For this reason, on-farm animal welfare assessment protocols often include the behavioral response of animals to humans to measure the quality of the human-animal relationship. The existing literature has described this relationship as being multifactorial in nature. In the current study, we aimed to investigate the potential influence of farm management and infrastructure characteristics, calf manager traits, and intrinsic features of dairy calves on the human-animal relationship. To this end, an escape test was conducted with 698 calves on 30 dairy farms in Chile. This test measured the calf's response to the active approach of an unfamiliar human (and was scored from 0 [fearful] to 4 [friendly]). The explanatory variables used to predict calves' response in the escape test were grouped according to the following categories: (1) farm management and infrastructure (e.g., calf-dam separation age, space allowance); (2) calf manager (e.g., attitudes, behavior, and background); and (3) calf (e.g., breed, sex, age). We concluded that calf managers with additional jobs on the farm, no training, low job satisfaction, a greater proportion of negative contacts, and more negative attitudes were predictive of fearfulness in the escape test. Holstein breed (compared with Holstein and Jersey crossbreeds) was associated with greater odds of fearful calves. Our study confirms the association between animals' fear and handlers' features, which can potentially be used to select employees on a farm. Understanding the factors that influence fear responses in calves may highlight ways to improve the relationship between animals and humans.


Asunto(s)
Bienestar del Animal , Bovinos/psicología , Industria Lechera , Agricultores/psicología , Animales , Actitud , Conducta , Conducta Animal , Cruzamiento , Chile , Industria Lechera/métodos , Femenino , Humanos , Masculino
13.
Rev Sci Instrum ; 91(1): 013506, 2020 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-32012542

RESUMEN

The slowing down and capture by a plasma of externally injected 1+ ions, as a consequence of very frequent elastic Coulomb collisions, is the main mechanism involved in the charge breeding process based on electron cyclotron resonance ion sources. The Istituto Nazionale di Fisica Nucleare ion source group has been undertaking an intense activity on numerical simulations of the beam-plasma interaction, developing a code that has been proven to be very effective in reproducing several experimental results of charge breeding of light and heavy ions. This contribution will present the progress made in the development of the numerical code, focusing the attention on the latest simulations of charge breeding of Rb1+ ions employing a self-consistent plasma target model. The effect of the real plasmoid/halo structure on the capture process will be underlined, as well as the influence of different plasma excitation frequencies.

14.
Sci Rep ; 9(1): 10250, 2019 07 15.
Artículo en Inglés | MEDLINE | ID: mdl-31308395

RESUMEN

The Poaceae constitute a taxon of flowering plants (grasses) that cover almost all Earth's inhabitable range and comprises some of the genera most commonly used for human and animal nutrition. Many of these crops have been sequenced, like rice, Brachypodium, maize and, more recently, wheat. Some important members are still considered orphan crops, lacking a sequenced genome, but having important traits that make them attractive for sequencing. Among these traits is apomixis, clonal reproduction by seeds, present in some members of the Poaceae like Eragrostis curvula. A de novo, high-quality genome assembly and annotation for E. curvula have been obtained by sequencing 602 Mb of a diploid genotype using a strategy that combined long-read length sequencing with chromosome conformation capture. The scaffold N50 for this assembly was 43.41 Mb and the annotation yielded 56,469 genes. The availability of this genome assembly has allowed us to identify regions associated with forage quality and to develop strategies to sequence and assemble the complex tetraploid genotypes which harbor the apomixis control region(s). Understanding and subsequently manipulating the genetic drivers underlying apomixis could revolutionize agriculture.


Asunto(s)
Eragrostis/genética , Poaceae/genética , Secuencia de Bases/genética , Mapeo Cromosómico/métodos , Evolución Molecular , Regulación de la Expresión Génica de las Plantas/genética , Genoma de Planta/genética , Genotipo , Fenotipo , Análisis de Secuencia/métodos
15.
J Pediatr Urol ; 15(5): 557.e1-557.e8, 2019 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-31358433

RESUMEN

BACKGROUND: There are no reports comparing testicular volume between normal fetuses, fetuses with prune-belly syndrome (PBS), and fetuses with anencephaly. The study hypothesis was that PBS and especially anencephaly alter the testicular volume during the human fetal period. AIM: The objective of the study was to compare the testicular growth in fetuses with anencephaly, with PBS, and without anomalies. STUDY DESIGN: This is a morphometric study of human fetuses. Seventy testes from fetuses without anomalies aged 11-22 weeks post-conception (WPC), 30 testes from fetuses with anencephaly aged 13-19 WPC, and eight testes from fetuses with PBS aged 13-16 WPC were studied. Testicular length, width, and thickness were evaluated with the aid of computer programs (Image Pro and ImageJ) (Figure). The fetal testicular volume was calculated using the ellipsoid formula: Testicular volume (TV) = [length × thickness × width] × 0.523. The Shapiro-Wilk test was used to ascertain the normality of the data and to compare quantitative data between normal fetuses vs. fetuses with anencephaly, while the Kruskal-Wallis test was used to assess gender and laterality differences. Simple linear correlations (LCs) were calculated for testicular volume according to fetal age, weight, and crown-rump length. RESULTS: All 108 testes studied were abdominal. The right (p = 0.0310) and left (0.0470) testicular volumes were significantly smaller in fetuses with anencephaly than those in the control group. The linear regression analysis indicated that the right and the left testis volume in the control group (right: r2 = 0.6665; left: r2 = 0.6707) and PBS group (right: r2 = 0.9937; left: r2 = 0.9757) increased with fetal age (p < 0.0001). This analysis also indicated that the testicular volume in fetuses with anencephaly did not increase with fetal age (right: r2 = 009816; left: r2 = 0.07643). DISCUSSION: This article is the first to report testicular volume correlations with fetal parameters in fetuses with anencephalic and fetuses with PBS. Significant alterations were observed in testicular growth in the anencephalic group compared with the control group, and it was also observed that the bilateral cryptorchidism in PBS does not alter the testicular development and growth during the fetal period. The unequal WPC distribution between fetuses with PBS, fetuses with anencephaly, and controls and the small sample size are limitations of this study. Further studies should be performed to confirm this study's findings. CONCLUSIONS: Testicular growth is slower and does not show significant correlations with fetal parameters in fetuses with anencephalic. Significant differences in testicular development in fetuses with PBS was not observed.


Asunto(s)
Feto/diagnóstico por imagen , Síndrome del Abdomen en Ciruela Pasa/diagnóstico , Testículo/embriología , Edad Gestacional , Humanos , Masculino , Tamaño de los Órganos , Síndrome del Abdomen en Ciruela Pasa/embriología , Testículo/crecimiento & desarrollo
16.
Comput Methods Programs Biomed ; 175: 95-102, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-31104719

RESUMEN

BACKGROUND: Different mechanisms have been proposed to relate atrial fibrillation (AF) and coronary flow impairment, even in absence of relevant coronary artery disease (CAD). However, the underlying hemodynamics remains unclear. Aim of the present work is to computationally explore whether and to what extent ventricular rate during AF affects the coronary perfusion. METHODS: AF is simulated at different ventricular rates (50, 70, 90, 110, 130 bpm) through a 0D-1D multiscale validated model, which combines the left heart-arterial tree together with the coronary circulation. Artificially-built RR stochastic extraction mimics the in vivo beating features. All the hemodynamic parameters computed are based on the left anterior descending (LAD) artery and account for the waveform, amplitude and perfusion of the coronary blood flow. RESULTS: Alterations of the coronary hemodynamics are found to be associated either to the heart rate increase, which strongly modifies waveform and amplitude of the LAD flow rate, and to the beat-to-beat variability. The latter is overall amplified in the coronary circulation as HR grows, even though the input RR variability is kept constant at all HRs. CONCLUSIONS: Higher ventricular rate during AF exerts an overall coronary blood flow impairment and imbalance of the myocardial oxygen supply-demand ratio. The combined increase of heart rate and higher AF-induced hemodynamic variability lead to a coronary perfusion impairment exceeding 90-110 bpm in AF. Moreover, it is found that coronary perfusion pressure (CPP) is no longer a good measure of the myocardial perfusion for HR higher than 90 bpm.


Asunto(s)
Fibrilación Atrial/diagnóstico por imagen , Circulación Coronaria , Frecuencia Cardíaca , Algoritmos , Arterias/fisiología , Simulación por Computador , Vasos Coronarios/diagnóstico por imagen , Femenino , Corazón/diagnóstico por imagen , Hemodinámica , Humanos , Masculino , Modelos Cardiovasculares , Contracción Miocárdica , Miocardio/patología , Oxígeno/metabolismo
17.
Rev. chil. reumatol ; 35(4): 158-160, 2019. ilus
Artículo en Español | LILACS | ID: biblio-1282356

RESUMEN

El mayor acceso a las terapias biológicas para el tratamiento de múltiples enfer-medades autoinmune trae consigo el mayor riesgo de padecer eventos adversos relacionados al uso de estos2,4. Presentamos un caso clínico de una paciente con diagnóstico de artritis reumatoide en tratamiento con ANTI TNF


The greater access to biological therapies for the treatment of multiple autoim-mune diseases brings with it the greatest risk of suffering adverse events related to the use of these (2,4). We present a clinical case of a patient diagnosed with rheumatoid arthritis in treatment with ANTI TNF


Asunto(s)
Humanos , Femenino , Persona de Mediana Edad , Lupus Eritematoso Cutáneo/etiología , Inhibidores del Factor de Necrosis Tumoral/efectos adversos , Artritis Reumatoide/complicaciones , Enfermedades Autoinmunes/terapia
18.
Ultrasound Obstet Gynecol ; 52(6): 792-800, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-29978567

RESUMEN

OBJECTIVE: To describe the clinical and ultrasound characteristics of ovarian pure clear cell carcinoma. METHODS: This was a retrospective study involving data from 11 ultrasound centers. From the International Ovarian Tumor Analysis (IOTA) database, 105 patients who had undergone preoperative ultrasound examination by an experienced ultrasound examiner between 1999 and 2016 were identified with a histologically confirmed pure clear cell carcinoma of the ovary. An additional 47 patients diagnosed with pure clear cell carcinoma between 1999 and 2016 and with available complete preoperative ultrasound reports were identified retrospectively from the databases of the departments of gynecological oncology in the participating centers. The ultrasound images of all tumors were described using IOTA terminology. Clinical and ultrasound characteristics were analyzed for the whole group, and separately, for patients with and those without histologically confirmed endometriosis, and for patients with evidence of tumor developing from endometriosis. RESULTS: Median age of the 152 patients was 53.5 (range, 28-92) years and 92/152 (60.5%) tumors were FIGO Stage I. Most tumors (128/152, 84.2%) were unilateral. On ultrasound examination, all tumors contained solid components and 36/152 (23.7%) were completely solid masses. The median largest diameter of the lesion was 117 (range, 25-310) mm. Papillary projections were present in 58/152 (38.2%) masses and, in most of these (51/56, 91.1%), vascularized papillary projections were seen. Information regarding the presence, site and type of pelvic endometriosis at histology was available for 130/152 patients. Endometriosis was noted in 54 (41.5%) of these. In 24/130 (18.6%) patients, the tumor was judged to have developed from endometriosis. Patients with, compared to those without, evidence of tumor developing from endometriosis were younger (median 47.5 vs 55.0 years, respectively), and ground-glass echogenicity of cyst fluid was more common in pure clear cell cancers developing from endometriosis (10/20 vs 13/79 (50.0% vs 16.5%), respectively). CONCLUSIONS: Ovarian pure clear cell carcinoma is usually diagnosed at an early stage and typically appears as a large unilateral mass with solid components. Patients with clear cell carcinoma developing from endometriosis are younger than other patients with clear cell carcinoma, and clear cell cancers developing from endometriosis more often manifest ground-glass echogenicity of cyst fluid. Copyright © 2018 ISUOG. Published by John Wiley & Sons Ltd.


Asunto(s)
Adenocarcinoma de Células Claras/diagnóstico por imagen , Endometriosis/complicaciones , Neoplasias Ováricas/diagnóstico por imagen , Adenocarcinoma de Células Claras/etiología , Adenocarcinoma de Células Claras/patología , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Endometriosis/diagnóstico por imagen , Femenino , Humanos , Persona de Mediana Edad , Neoplasias Ováricas/etiología , Neoplasias Ováricas/patología , Estudios Retrospectivos , Ultrasonografía
19.
Ann Oncol ; 29(5): 1189-1194, 2018 05 01.
Artículo en Inglés | MEDLINE | ID: mdl-29462248

RESUMEN

Background: MITO-8 showed that prolonging platinum-free interval by introducing non-platinum-based chemotherapy (NPBC) does not improve prognosis of patients with partially platinum-sensitive recurrent ovarian cancer. Quality of life (QoL) was a secondary outcome. Patients and methods: Ovarian cancer patients recurring or progressing 6-12 months after previous platinum-based chemotherapy (PBC) were randomized to receive PBC or NPBC as first treatment. QoL was assessed at baseline, third and sixth cycles, with the EORTC C-30 and OV-28 questionnaires. Mean changes and best response were analysed. Progression-free survival, response rate, and toxicity are also reported for proper interpretation of data. All analyses were based on intention-to-treat. Results: Out of the 215 patients, 151 (70.2%) completed baseline questionnaire, balanced between the arms; thereafter, missing rate was higher in the NPBC arm. At mean change analysis, C30 scores were prevalently worse in the NPBC than PBC arm, statistical significance being attained for emotional functioning, global health status/QoL, fatigue, and dyspnoea (effect sizes ranging from 0.30 to 0.51). Conversely, as for OV28 scale, the other chemotherapy side-effects item was significantly worse with PBC at three and six cycles, with a larger effect size (0.70 and 0.54, respectively). At best response analysis, improvement of emotional functioning and pain and worsening of peripheral neuropathy and other chemotherapy side-effects were significantly more frequent in the PBC arm. Progression-free survival (median 9 versus 5 months, P = 0.001) and objective response rate (51.6% versus 19.4%, P = 0.0001) were significantly better with PBC. Allergy, blood cell count, alopecia, nausea, musculoskeletal, and neurological side-effects were more frequent and severe with PBC; hand-foot skin reaction, rash/desquamation, mucositis, and vascular events were more frequent with NPBC. Conclusion: MITO-8 QoL analysis shows that deterioration of some functioning and symptom scales is lower with PBC, with improvement of emotional functioning and pain, despite worsening of toxicity-related items. ClinicalTrials.gov: NCT00657878.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/epidemiología , Recurrencia Local de Neoplasia/tratamiento farmacológico , Compuestos Organoplatinos/efectos adversos , Neoplasias Ováricas/tratamiento farmacológico , Calidad de Vida , Adulto , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Estudios Cruzados , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/diagnóstico , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/etiología , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/psicología , Femenino , Humanos , Persona de Mediana Edad , Recurrencia Local de Neoplasia/mortalidad , Recurrencia Local de Neoplasia/patología , Recurrencia Local de Neoplasia/psicología , Compuestos Organoplatinos/administración & dosificación , Neoplasias Ováricas/mortalidad , Neoplasias Ováricas/patología , Neoplasias Ováricas/psicología , Pronóstico , Supervivencia sin Progresión , Índice de Severidad de la Enfermedad , Encuestas y Cuestionarios/estadística & datos numéricos , Análisis de Supervivencia
20.
Biosystems ; 162: 1-11, 2017 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-28860069

RESUMEN

Gene regulatory networks (GRNs) are crucial in every process of life since they govern the majority of the molecular processes. Therefore, the task of assembling these networks is highly important. In particular, the so called model-free approaches have an advantage modeling the complexities of dynamic molecular networks, since most of the gene networks are hard to be mapped with accuracy by any other mathematical model. A highly abstract model-free approach, called rule-based approach, offers several advantages performing data-driven analysis; such as the requirement of the least amount of data. They also have an important ability to perform inferences: its simplicity allows the inference of large size models with a higher speed of analysis. However, regarding these techniques, the reconstruction of the relational structure of the network is partial, hence incomplete, for an effective biological analysis. This situation motivated us to explore the possibility of hybridizing with other approaches, such as biclustering techniques. This led to incorporate a biclustering tool that finds new relations between the nodes of the GRN. In this work we present a new software, called GeRNeT that integrates the algorithms of GRNCOP2 and BiHEA along a set of tools for interactive visualization, statistical analysis and ontological enrichment of the resulting GRNs. In this regard, results associated with Alzheimer disease datasets are presented that show the usefulness of integrating both bioinformatics tools.


Asunto(s)
Algoritmos , Biología Computacional/métodos , Redes Reguladoras de Genes/genética , Programas Informáticos , Animales , Perfilación de la Expresión Génica/métodos , Humanos , Modelos Genéticos , Mutación , Análisis de Secuencia por Matrices de Oligonucleótidos/métodos
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