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2.
Int J Lab Hematol ; 41(1): 124-132, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-30358123

RESUMEN

INTRODUCTION: Acute promyelocytic leukemia (APL) is a type of acute myeloid leukemia (AML) with a life-threatening coagulopathy. Once it is suspected, ATRA should be started. Appreciation of APL details is critical, but an experienced hematopathologist may not be available. We developed an algorithm, based on the parameters generated by automated blood cell counter ADVIA 2120i Siemens that can aid the diagnosis of APL. METHODS: All parameters in the algorithm were selected on the bases of the pathophysiology of the APL and the analyzer's technology. We used c1 cutoff: PLT < 150 × 103 ; % Mono<10; % LUC<4; % hyperchromic cells > 2; %saturated cells ≥ 1; % blasts > 4. Satisfying at least five of six cutoffs, we obtained an "APL criteria". It was tested on 247.209 raw-data from routine and emergency samples and on 124 raw-data from APL. We performed a multiparametric analyses and obtained definitive cutoffs (c2). It was validated on a new group of 51.002 raw-data from routine and emergency. Finally, it was tested on AML and ALL, MDS, MPN, oncologic samples, and hemolytic and megaloblastic anemia. RESULTS: The algorithm provided a high sensitivity (86.30%) and high specificity (99.83%) in APL with high or normal number of WBC and satisfactory results in APL with cytopenia (80%). The specificity was very high also in groups of hematological and nonhematological diseases. It can be used as an "APL criteria" to alert pathologists of the possible presence of APL. It together with instrumental and classical morphology may allow to reduce the time of diagnosis with further reduction in early death.


Asunto(s)
Leucemia Promielocítica Aguda/diagnóstico , Leucemia Promielocítica Aguda/mortalidad , Algoritmos , Diagnóstico Precoz , Humanos , Leucemia Promielocítica Aguda/patología , Recuento de Leucocitos , Sensibilidad y Especificidad
3.
Stud Health Technol Inform ; 191: 100-4, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23792852

RESUMEN

Poor adherence to drug therapies still represents an unsolved problem. In order to provide a useful solution to chronic patients of all ages--with particular attention to the elderly--who are subjected to complex therapeutic regimen, an innovative ICT solution, called Dr.Drin, has been designed and tested. The aim of the developed framework is to assist the patient during the therapy and to enable and support a bidirectional communication between all healthcare stakeholders (doctors, caregivers and family members) and the patient. During the screening phase, patients were interviewed to understand what are the common practices they usually adopt to remember when and how to take a drug. The solutions which they rely the most on are the list of drugs, writing on the packaging, and setting up alarms. Patients who complained about difficulties of adherence and who had a smartphone were subsequently recruited to test Dr.Drin over a three-months period. In the following, preliminary results from the first twelve patients are presented and analyzed to prove the effectiveness of Dr.Drin in supporting patients adherence to therapies.


Asunto(s)
Biorretroalimentación Psicológica/métodos , Enfermedad Crónica/tratamiento farmacológico , Quimioterapia Asistida por Computador/métodos , Cumplimiento de la Medicación , Sistemas Recordatorios , Telemedicina/métodos , Interfaz Usuario-Computador , Humanos , Resultado del Tratamiento
4.
Cell Tissue Res ; 322(2): 257-67, 2005 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-16059703

RESUMEN

An analytical strategy combining fractal geometry and grey-level co-occurrence matrix (GLCM) statistics was devised to investigate ultrastructural changes in oestrogen-insensitive SK-BR3 human breast cancer cells undergoing apoptosis in vitro. Apoptosis was induced by 1 microM calcimycin (A23187 Ca(2+) ionophore) and assessed by measuring conventional cellular parameters during the culture period. SK-BR3 cells entered the early stage of apoptosis within 24 h of treatment with calcimycin, which induced detectable changes in nuclear components, as documented by increased values of most GLCM parameters and by the general reduction of the fractal dimensions. In these affected cells, morphonuclear traits were accompanied by the reduction of distinct gangliosides and loss of unidentifiable glycolipid molecules at the cell surface. All these changes were shown to be involved in apoptosis before the detection of conventional markers, which were only measurable during the active phases of apoptotic cell death. In overtly apoptotic cells treated with 1 microM calcimycin for 72 h, most nuclear components underwent dramatic ultrastructural changes, including marginalisation and condensation of chromatin, as reflected in a significant reduction of their fractal dimensions. Hence, both fractal and GLCM analyses confirm that the morphological reorganisation of nuclei, attributable to a loss of structural complexity, occurs early in apoptosis.


Asunto(s)
Apoptosis/fisiología , Neoplasias de la Mama/patología , Núcleo Celular , Procesamiento de Imagen Asistido por Computador/métodos , Biomarcadores/metabolismo , Calcimicina/metabolismo , Línea Celular Tumoral , Núcleo Celular/metabolismo , Núcleo Celular/ultraestructura , Femenino , Fractales , Humanos , Ionóforos/metabolismo , Matemática , Esfingolípidos/metabolismo
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