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1.
Acta Chir Orthop Traumatol Cech ; 90(5): 301-313, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37898493

RESUMEN

PURPOSE OF THE STUDY Different techniques have been reported to reconstruct the defi cient acetabulum during total hip arthroplasty (THA). The purpose of this study was to compare the biomechanical features of the bulk bone graft (BBG) technique (Harris acetabular plasty) and the Roof Step Cut (RSC) technique using fi nite element analysis. MATERIAL AND METHODS Based on a female patient's dysplastic hip CT scan, 3D models were assembled according to the two techniques. For the Harris technique, an irregular BBG was sculpted from a solid sphere, while for the RSC technique, the graft was sculpted into a step-cut shape with a similar size. Each graft was fi xed with two compression screws at two different angles (0° and 45°). Four fi nite element models were used to compare the von Mises stress distribution and total deformation of the grafts and the screws. The pressure and sliding distances of the contacts between the bone graft, metal cup and acetabular host bone were also analyzed. RESULTS For both of the bone grafts and the screws, compared to the Harris models, the maximum stress of the RSC models was signifi cantly lower (16.56 MPa, 25.50 MPa vs 97.13 MPa, 112.72 MPa) and the total deformation was signifi cantly smaller (0.0096 mm, 0.0089 mm vs 0.022 mm, 0.018 mm). 45° inserted screws generated higher stress at the end of the screws and on the outside of the bone graft. In case of 0° inserted screws, the maximum value was mainly located in the middle of the screws, inside the screw channel as well as at the contact area between the graft and the host bone. At all analyzed contacts, the RSC technique shows signifi cantly lower pressure and sliding distances, irrelevant to the screw's insertion angle. In comparison, the model of BBG with 45° screws showed a signifi cant sliding effect and higher contact pressure. CONCLUSIONS Compared with the BBG technique, the step-shaped graft of the RSC technique could signifi cantly reduce the maximum stress and deformation of the graft and the screws, and decrease the pressure and sliding distance between the bone graft, metal cup and the acetabular host bone. The angle of screw placement affects the location of stress and deformation. Key words: developmental dysplasia of the hip, total hip arthroplasty, acetabular reconstruction, bone graft, fi nite element analysis.


Asunto(s)
Artroplastia de Reemplazo de Cadera , Luxación Congénita de la Cadera , Luxación de la Cadera , Prótesis de Cadera , Humanos , Femenino , Artroplastia de Reemplazo de Cadera/métodos , Luxación de la Cadera/cirugía , Análisis de Elementos Finitos , Luxación Congénita de la Cadera/cirugía , Acetábulo/cirugía
2.
Eur J Clin Microbiol Infect Dis ; 41(6): 989-996, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35596097

RESUMEN

Antimicrobial susceptibility of clinical isolates collected from sites in central Europe in 2019 was tested by CLSI broth microdilution method and EUCAST breakpoints. Most active were amikacin, ceftazidime-avibactam and colistin; respectively, susceptibility rates among P. aeruginosa (n = 701) were 89.2%, 92.2% and 99.9%; difficult-to-treat (DTR) isolates, 62.5%, 37.5% and 100%; multidrug-resistant (MDR) isolates, 68.3%, 72.9% and 99.5%; meropenem-resistant (MEM-R), metallo-ß-lactamase-negative (MBL-negative) isolates, 72.8%, 78.6% and 100%. Among Enterobacterales (n = 1639), susceptibility to ceftazidime-avibactam, colistin and tigecycline was ≥ 97.9%; MDR Enterobacterales, 96.8%, 94.4% and 100%, respectively; DTR isolates, ≥ 76.2% to ceftazidime-avibactam and colistin; MEM-R, MBL-negative isolates, ≥ 90.0% to ceftazidime-avibactam and colistin.


Asunto(s)
Colistina , Pseudomonas aeruginosa , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Compuestos de Azabiciclo , Ceftazidima/farmacología , Colistina/farmacología , Croacia , República Checa , Combinación de Medicamentos , Enterobacteriaceae , Humanos , Hungría , Letonia , Lituania , Meropenem , Pruebas de Sensibilidad Microbiana , Polonia
3.
Clin Oral Investig ; 26(12): 7135-7142, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-35994126

RESUMEN

OBJECTIVES: To evaluate t he long-term outcomes following treatment of RT 1 multiple adjacent gingival recessions (MAGR) using the modified coronally advanced tunnel (MCAT) with either a collagen matrix CM or a connective tissue graft (CTG). MATERIAL AND METHODS: Sixteen of the original 22 subjects included in a randomized, controlled split-mouth clinical trial were available for the 9-year follow-up (114 sites). Recessions were randomly treated by means of MCAT + CM (test) or MCAT + CTG (control). Complete root coverage (CRC), mean root coverage (MRC), gingival recession depth (GRD), probing pocket depth (PD), keratinized tissue width (KTW), and thickness (KGT) were compared with baseline values and with the 12-month results. RESULTS: After 9 years, CRC was observed in 2 patients, one in each group. At 9 years, MRC was 23.0 ± 44.5% in the test and 39.7 ± 35.1% in the control group (p = 0.179). The MRC reduction compared to 12 months was - 50.1 ± 47.0% and - 48.3 ± 37.7%, respectively. The upper jaw obtained 31.92 ± 43.0% of MRC for the test and 51.1 ± 27.8% for the control group (p = 0.111) compared to the lower jaw with 8.3 ± 46.9% and 20.7 ± 40.3%. KTW and KGT increased for both CM and CTG together from 2.0 ± 0.7 to 3.1 ± 1.0 mm (< 0.0001). There were no statistically significant changes in PD. CONCLUSION: The present results indicate that (a) treatment of MAGR using MCAT in conjunction with either CM or CTG is likely to show a relapse over a period of 9 years, and (b) the outcomes obtained in maxillary areas seem to be more stable compared to the mandibular ones. CLINICAL RELEVANCE: The mean root coverage at 12 months could not be fully maintained over 9 years. On a long-term basis, the results seem to be less stable in the mandible as compared to maxillary areas.


Asunto(s)
Recesión Gingival , Humanos , Recesión Gingival/cirugía , Recesión Gingival/tratamiento farmacológico , Encía , Raíz del Diente/cirugía , Colgajos Quirúrgicos , Resultado del Tratamiento , Tejido Conectivo/trasplante , Colágeno/uso terapéutico
4.
HIV Med ; 20(3): 192-201, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30620136

RESUMEN

OBJECTIVES: The reported prevalence of chronic obstructive pulmonary disease (COPD) in people living with HIV (PLWHIV) varies widely. Our objective was to estimate the prevalence of airflow obstruction and COPD in unselected PLWHIV and identify characteristics that increase the risk of nonreversible airflow obstruction in order to guide case finding strategies for COPD. METHODS: All adults attending the Chronic Viral Illness Service were invited to participate in the study, regardless of smoking status or history of known COPD/asthma. Individuals underwent spirometric testing both before and after use of a salbutamol bronchodilator. Airflow obstruction was defined as forced expiratory volume in 1 s (FEV1 )/forced vital capacity (FVC) < 0.7 post-bronchodilation, whereas COPD was defined as FEV1 /FVC < 0.7 post-bronchodilation and Medical Research Council (MRC) score > 2. Multivariate logistic regression was used to evaluate risk factors associated with airflow obstruction, reported as adjusted odds ratios (aORs). RESULTS: Five hundred and three participants successfully completed spirometry testing. The median (Q1; Q3) age was 52 (44; 58) years. The median (Q1; Q3) CD4 count was 598 (438; 784) cells/µL and the median (Q1; Q3) nadir CD4 count was 224 (121; 351) cells/µL. There were 119 (24%) current smokers and 145 (29%) former smokers. Among those screened, 54 (11%) had airflow obstruction whereas three (1%) of the participants had COPD. Factors that were associated with airflow obstruction included a history of smoking [aOR 2.2; 95% confidence interval (CI) 1.1; 4.7], older age (aOR 1.6; 95% CI 1.2; 2.2), and lower CD4 count (aOR 0.8; 95% CI 0.7; 1.0). CONCLUSIONS: Airflow obstruction was relatively uncommon. Our findings suggest that PLWHIV who are ≥50 years old, smokers and those with nadir CD4 counts ≤ 200 cells/µL could be targeted to undergo spirometry to diagnose chronic airflow obstruction.


Asunto(s)
Albuterol/administración & dosificación , Infecciones por VIH/complicaciones , Enfermedad Pulmonar Obstructiva Crónica/tratamiento farmacológico , Enfermedad Pulmonar Obstructiva Crónica/epidemiología , Adulto , Albuterol/farmacología , Recuento de Linfocito CD4 , Canadá/epidemiología , Estudios Transversales , Femenino , Volumen Espiratorio Forzado/efectos de los fármacos , Infecciones por VIH/inmunología , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Enfermedad Pulmonar Obstructiva Crónica/etiología , Medición de Riesgo , Espirometría , Centros de Atención Terciaria , Capacidad Vital/efectos de los fármacos
5.
J Acoust Soc Am ; 145(2): 795, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-30823778

RESUMEN

This study sought to explore effects of panel size on underwater acoustic transmission and reflection measurements made with a truncated parametric array source. The transmission loss (TL) and reflection loss spectra of aluminum panels of several different sizes were determined experimentally, and compared to predictions from plane wave theory in the 5-100 kHz frequency range. For the smallest panel size, there were significant discrepancies between experimental data and plane wave theory, which were attributed to contributions from edge-diffracted waves and interferences from the mounting fixture for the panel. For reflection measurements, the latter interference could be corrected for in part by measurement of the reflected signal from the sample holder (with no panel present), and subtracting this signal from reference and test panel waveforms. In order to reduce the contributions from edge diffracted waves in TL measurements, an alternative panel mounting system was investigated, which involved surrounding the panel in a reflective baffle. There was a significant improvement in agreement of experimental TL spectra with plane wave theory for the smallest aluminum panel when the baffle mounting arrangement was used.

6.
Orv Hetil ; 159(44): 1775-1781, 2018 Nov.
Artículo en Húngaro | MEDLINE | ID: mdl-30392409

RESUMEN

Establishment of a proper hemodynamic monitoring system in order to achieve optimal care among critically ill patients is fundamental. In contrast to invasive patient-checking systems, which were introduced decades ago and used in both adult and pediatric intensive care, the non-invasive methods have become more popular in recent years due to technical advancements in intensive care and patient monitoring. This increase in popularity can be attributed to the higher degree of safety and reduced complication rates as well as to its being more economical. Our summary focuses on the ICON® patient monitoring system. This newly engineered, non-invasive tool is based on electrical cardiometry, and uses hemodynamic parameters in both neonatal and pediatric care as well as in adults. The operating principle is simple: the conductivity of the blood in the aorta shows time-dependent changes. Prior to the opening of the aortic valve, the orientation of the red blood cells (RBCs) is random, and it is not until the contraction of the aorta that the RBCs and the opening of the aortic valve achieve a parallel position. The tool senses the conductivity between four placed electrodes, and measures the stroke volume (SV) and cardiac output (CO), before calculating other additional parameters (eg.: systemic vascular resistance) by tracing the variation of bioimpedance according to changes in the heart cycle. The most important advantages of ICON® are the measurements that are made available immediately as well as continuously, and the low complication rate that originates from its non-invasive operation. ICON® is a new, promising hemodynamic device in the tool belt of intensive care. Due to the nature of the device, it is possible to evaluate the status of the patient on a continuous basis, allowing for optimal care. To identify the more accurate clinical indications further measures will be necessary. Orv Hetil. 2018; 159(44): 1775-1781.


Asunto(s)
Cardiografía de Impedancia/métodos , Cuidados Críticos/métodos , Monitorización Hemodinámica/métodos , Hemodinámica , Monitoreo Fisiológico/métodos , Humanos , Evaluación de Resultado en la Atención de Salud , Volumen Sistólico
8.
Orv Hetil ; 158(26): 1003-1007, 2017 Jul.
Artículo en Húngaro | MEDLINE | ID: mdl-28651458

RESUMEN

Laboratory diagnostics is especially important in the diagnosis of certain diseases. We compared manual measurements results to laboratory normal values. In some cases, these values depend on the gender and age as well. In the case of alkaline phosphatase, it is rarely considered that reference values change over life periods. Unfortunately, during the daily practice we do not always take into account of the changes with aging. This is especially true if the laboratory does not specify the age related normal values. Another problem that we mostly focus on the results exceeding the normal values, and do not pay enough attention to the low values. Of course, these results should be put in the context of the clinical picture and other diagnostic test results. We would like to draw attention to the measuring of alkaline phosphatase and the differential diagnosis for low serum activity. Orv Hetil. 2017; 158(26): 1003-1007.


Asunto(s)
Fosfatasa Alcalina/sangre , Hipofosfatasia/diagnóstico , Diagnóstico Diferencial , Humanos , Hipofosfatasia/sangre , Fosfato de Piridoxal/sangre
9.
Clin Infect Dis ; 62(2): 250-257, 2016 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-26349551

RESUMEN

BACKGROUND: CD8 T-cell counts remain elevated in human immunodeficiency virus (HIV) infection even after long-term antiretroviral therapy (ART), which is associated with an increased risk of non-AIDS-related events. We assessed the impact of ART initiation in early versus chronic HIV infection on trajectories of CD8 cell counts over time. METHODS: Of 280 individuals enrolled during primary HIV infection (PHI), 251 were followed up for 24 months; 84 started ART before 6 months of infection (eART), 49 started between 6 and 24 months, and 118 remained untreated. Plasma HIV viral load (VL), CD4 and CD8 cell counts were assessed at each study visit. CD8 counts were also examined in 182 age-matched HIV-infected individuals who started ART during chronic infection and maintained undetectable plasma VL for ≥5 years. RESULTS: At PHI baseline, higher CD8 cell counts were associated with more recent infection (P = .02), higher CD4 cell counts (P < .001), and higher VL (P < .001). The CD8 count in the eART group decreased from 797 to 588 cells/µL over 24 months (P < .001), to a level lower than that in untreated PHI (834 cells/µL; P = .004) or in long-term-treated patients with chronic HIV infection (743 cells/µL; P = .047). More prominent CD4 T-cell recovery was observed in the eART group than in the delayed ART group. CONCLUSIONS: ART initiated in early HIV infection is associated with improved resolution of CD8 T-cell elevation compared with long-term ART initiated in chronic infection. Early ART may help reduce the risk of non-AIDS-related events by alleviating this elevation.


Asunto(s)
Antirretrovirales/administración & dosificación , Linfocitos T CD8-positivos/inmunología , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/patología , Prevención Secundaria , Adulto , Femenino , Estudios de Seguimiento , Humanos , Recuento de Linfocitos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , ARN Viral/sangre , Resultado del Tratamiento , Carga Viral
10.
Eur J Orthop Surg Traumatol ; 24(8): 1447-53, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-24101187

RESUMEN

PURPOSE: The replacement of the dysplastic hip, despite the numerous available surgical techniques, is not entirely solved. One of the reasons for this is the relative lack of bone in the acetabulum. In this study, we present a new concept (intraosseous structural graft technique), with the aim to improve the primary stability and biological environment of the graft. METHODS: During the procedure in the cranial quadrant of the acetabulum, a proximally hinged cortico-spongious plate is fashioned that is opened laterally and a wedge-shaped graft made from the femoral head is impacted. The precisely fitted graft has good primary rotational and cranial stability which is further improved by a bicortical screw. RESULTS: The hypothesis is supported by examination on 3D models. Cadaver experimentations were performed on 19 hips of 10 cadavers, and stability testing was done on a further 20 hips of 10 cadavers with a material testing apparatus. Also the analysis of the biological and mechanical properties of the graft and the implant were examined. CONCLUSION: Based on our results, it can be concluded that our technique provides good primary stability with a more favorable biological condition for bony incorporation compared to other bulk bone graft techniques.


Asunto(s)
Acetábulo/cirugía , Artroplastia de Reemplazo de Cadera/métodos , Trasplante Óseo/métodos , Acetábulo/lesiones , Artroplastia de Reemplazo de Cadera/instrumentación , Fenómenos Biomecánicos/fisiología , Placas Óseas , Trasplante Óseo/instrumentación , Cabeza Femoral/cirugía , Articulación de la Cadera/fisiopatología , Humanos , Estrés Mecánico , Instrumentos Quirúrgicos
11.
Nat Genet ; 14(2): 174-6, 1996 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-8841188

RESUMEN

Pfeiffer syndrome (PS; McKusick MIM 101,600) is an autosomal dominant craniosynostosis syndrome with characteristic craniofacial anomalies and broad thumbs and big toes. We have previously demonstrated genetic heterogeneity in PS and mapped a gene to chromosome 8 (ref. 3) and a second to chromosome 10 (ref. 4). The gene on chromosome 8 is the fibroblast growth factor receptor 1 (FGFR1) with a common mutation (C755G) predicting a Pro252Arg substitution. The gene on chromosome 10 is FGFR2 with several different mutations causing sporadic and familial PS (Table 1). We report a recurrent single point mutation in the FGFR3 gene, located on chromosome 4p, in ten unrelated families with craniosynostosis syndromes. This mutation (C749G) predicts a Pro250Arg amino acid substitution in the extracellular domain of the FGFR3 protein. Interestingly, this common mutation occurs precisely at the analogous position within the FGFR3 protein as the mutations in FGFR1 (Pro252Arg) and FGFR2 (Pro253Arg) previously reported in Pfeiffer and Apert syndromes, respectively.


Asunto(s)
Acrocefalosindactilia/genética , Craneosinostosis/genética , Mutación Puntual/genética , Proteínas Tirosina Quinasas Receptoras/genética , Receptores de Factores de Crecimiento de Fibroblastos/genética , Secuencia de Aminoácidos , Disostosis Craneofacial/genética , Análisis Mutacional de ADN , Femenino , Genes Dominantes/genética , Humanos , Masculino , Datos de Secuencia Molecular , Linaje , Receptor Tipo 2 de Factor de Crecimiento de Fibroblastos , Síndrome
12.
Orv Hetil ; 154(17): 643-9, 2013 Apr 28.
Artículo en Húngaro | MEDLINE | ID: mdl-23608311

RESUMEN

The renin-angiotensin system is one of the most important hormone systems in the body, and the regulations as well as the role in the juxtaglomerular apparatus are well known. The present review focuses on renin secretion in a recently described localization, the cortical collecting duct. The authors display it in parallel of the copying strategy of an adult and a developing kidney. Furthermore, based on different animal studies it highlights the local role of renin released from the collecting duct. In chronic angiotensin II-infused, 2-kidney, 1-clip hypertensive model as well as in diabetic rats the major source of (pro)renin is indeed the collecting duct. In this localization this hormone can reach both the systemic circulation and the interstitial renin-angiotensin system components including the newly described (pro)renin receptor, by which (pro)renin is able to locally activate pro-fibrotic intracellular signal pathways. Consequently, one can postulate that in the future renin may serve either as a new therapeutic target in nephropathy associated with both hypertension and diabetes or as an early diagnostic marker in chronic diseases leading to nephropathy.


Asunto(s)
Angiotensina II/metabolismo , Hipertensión/metabolismo , Túbulos Renales Colectores/metabolismo , Túbulos Renales Colectores/fisiopatología , Sistema Renina-Angiotensina , Renina/metabolismo , Animales , Presión Sanguínea , Diabetes Mellitus Experimental/metabolismo , Diabetes Mellitus Experimental/fisiopatología , Femenino , Feto/metabolismo , Feto/fisiopatología , Humanos , Hipertensión/tratamiento farmacológico , Hipertensión/fisiopatología , Aparato Yuxtaglomerular/metabolismo , Aparato Yuxtaglomerular/fisiopatología , Túbulos Renales Colectores/embriología , Embarazo , Complicaciones Cardiovasculares del Embarazo/metabolismo , Complicaciones Cardiovasculares del Embarazo/fisiopatología , Renina/biosíntesis , Sistema Renina-Angiotensina/fisiología
13.
Orv Hetil ; 154(40): 1592-6, 2013 Oct 06.
Artículo en Húngaro | MEDLINE | ID: mdl-24077163

RESUMEN

INTRODUCTION: Children's sleep duration is decreasing in the last decade. Despite of the well known negative consequences, there are no data on children's sleep duration in Hungary and Romania. AIM: The aim of the authors was to assess sleep duration of school-age children in Hungary and Romania. METHOD: A self-edited questionnaire was used for the study. 2446 children were enrolled. All elementary and secondary schools in a Hungarian city, and one elementary and secondary school in a Romanian city took part in the study. RESULTS: Mean sleep duration was 8.3 ± 1.2 hours on weekdays. There was a significant difference between the two countries (Hungary vs. Romania, 8.5 ± 1.2 hours vs. 7.8 ± 0.9 hours, p = 0.001). Age correlated with sleep duration on weekdays (r= -0.605, p = 0.001), but not during weekend. CONCLUSIONS: This is the first study on children's sleep duration in Hungary and Romania. The difference between countries may be due to the difference in mean age or cultural and/or geographical differences.


Asunto(s)
Sueño , Estudiantes/estadística & datos numéricos , Adolescente , Factores de Edad , Niño , Características Culturales , Femenino , Humanos , Hungría , Masculino , Rumanía , Encuestas y Cuestionarios , Factores de Tiempo
14.
J Endocrinol Invest ; 33(4): 222-7, 2010 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-19625757

RESUMEN

BACKGROUND: The presence of Y-chromosome material in patients with Turner syndrome (TS) is a risk factor for the development of gonadoblastoma. Cytogenetic analysis detects Y-chromosome mosaicism in about 5% of Turner patients. However, if Y-chromosome sequences are present in only a few cells, they may be missed by routine analysis. The use of molecular techniques to detect the presence of Y-chromosome fragments in such patients is becoming increasingly important. AIM: The objective of our study was to analyze cryptic Y-chromosome derivatives in Hungarian TS patient population by real-time PCR (RT-PCR). SUBJECTS AND METHODS: Cytogenetic and RT-PCR methods were used to examine peripheral blood DNA of 130 Hungarian patients with TS for the presence of Y-chromosome. With RT-PCR, 4 regions throughout the Y-chromosome were analyzed. RESULTS: Initial cytogenetic karyotyping assessing 10-50 metaphases revealed 3 patients with Y-chromosome positivity. RT-PCR revealed further 6 patients with Y-chromosome, who were initially considered as Y-negatives by standard kayotyping. The consecutive cytogenetic analysis of a large number (about 100) of metaphases (in 5 patients) and/or FISH (in 6 patients) however, also confirmed the presence of the Y-chromosome in these patients. Prophylactic gonadectomy was carried out in all 9 patients and 1 of them was diagnosed as having bilateral gonadoblastoma without clinical symptoms. CONCLUSIONS: We recommend a routine molecular screening for hidden Y-chromosome sequences in Turner patients, who are negative for Y-chromosome by conventional cytogenetic analysis, in order to calculate the future risk of developing gonadoblastoma.


Asunto(s)
Cromosomas Humanos Y/genética , Marcadores Genéticos/genética , Síndrome de Turner/genética , Adolescente , Niño , Preescolar , Análisis Citogenético , Femenino , Gonadoblastoma/genética , Humanos , Hungría , Lactante , Recién Nacido , Cariotipificación , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Factores de Riesgo , Adulto Joven
15.
J Anim Physiol Anim Nutr (Berl) ; 94(6): 721-8, 2010 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-21073632

RESUMEN

Effect of humic acid (HA) and fulvic acid (FA) on production parameters, immune response and thyroid function of rats were investigated in two experiments. First experiment: control or 0.1%, 0.2%, 0.4%, 0.8% HA- or FA-supplemented diets. Second experiment: control and 0.4% HA- or FA-supplemented diets. The feeding period lasted 26 days in both trials. No significant changes were observed in production parameters. Ovalbumine antibody titre of rats on HA- or FA-supplemented diets showed dose-dependent (at 0.4% supplementation) and significant (p < 0.05) increase (350 and 418% respectively) over the control (100%). Dose-related increase of plasma TSH (r = 0.99), and decrease of the T(4)/T(3) ratio (r = -0.97) was observed in FA-supplemented rats. Second experiment: both FA and HA stimulated the immune response by the 14th day (mean values: control: 685.79; FA: 1131.37; HA: 1055.6099) and 26th day (control: 544.31; FA: 1969.83; HA: 1600.00). No significant differences were noted with lymphocyte stimulation test. Diameter of the 'B'-dependent lymphoid tissues in the ileum and spleen were significantly (p < 0.05) larger in both the FA- and HA-treated animals. Humic acid and FA supplementation resulted in strong humoral immune stimulation. Our data also indicate that FA content is responsible for the mild hypothyroid effect of humic substances.


Asunto(s)
Benzopiranos/toxicidad , Sustancias Húmicas/toxicidad , Glándula Tiroides/efectos de los fármacos , Alimentación Animal , Animales , Anticuerpos/sangre , Dieta , Masculino , Ovalbúmina/inmunología , Distribución Aleatoria , Ratas , Organismos Libres de Patógenos Específicos , Tirotropina/sangre , Tiroxina/sangre , Triyodotironina/sangre
16.
Orv Hetil ; 161(24): 993-1001, 2020 06.
Artículo en Húngaro | MEDLINE | ID: mdl-32469845

RESUMEN

The basic structural units of the renal filtration are the glomeruli, which, in addition to their passive hemodynamic function, also participate in complex immune-mediated mechanisms. The immune system as a double-edged sword maintains the physiological homeostasis of the glomeruli, but also plays a crucial role in the induction of glomerular damage. The immune-mediated chronic glomerular injures are the most common cause of end-stage renal diseases. The unregulated and overactive immune response can damage both the structural and the cellular components of the glomeruli, including the glomerular basal membrane, mesangial and capillary endothelial cells, podocytes, and parietal epithelium. The manuscript summarizes the role of the glomerular components and the natural and adaptive immune response in the pathomechanism of glomerular diseases. Orv Hetil. 2020; 161(24): 993-1001.


Asunto(s)
Fallo Renal Crónico/patología , Glomérulos Renales/lesiones , Células Endoteliales , Humanos
17.
Epidemiol Psychiatr Sci ; 29: e158, 2020 Aug 14.
Artículo en Inglés | MEDLINE | ID: mdl-32792036

RESUMEN

AIMS: Early diagnosis and treatment of depression are associated with better prognosis. We used baseline data of the Canadian Longitudinal Study on Aging (2012-2015; ages 45-85 years) to examine differences in prevalence and predictors of undiagnosed depression (UD) between immigrants and non-immigrants at baseline and persistent and/or emerging depressive symptoms (DS) 18 months later. At this second time point, we also examined if a mental health care professional (MHCP) had been consulted. METHODS: We excluded individuals with any prior mood disorder and/or current anti-depressive medication use at baseline. UD was defined as the Center for Epidemiological Studies Depression 10 score ⩾10. DS at 18 months were defined as Kessler 10 score ⩾19. The associations of interest were examined in multivariate logistic regression models. RESULTS: Our study included 4382 immigrants and 18 620 non-immigrants. The mean age (standard deviation) in immigrants was 63 (10.3) years v. 65 (10.7) years in non-immigrants and 52.1% v. 57.1% were male. Among immigrants, 12.2% had UD at baseline of whom 34.2% had persistent DS 18 months later v. 10.6% and 31.4%, respectively, among non-immigrants. Female immigrants were more likely to have UD than female non-immigrants (odds ratio 1.50, 95% confidence interval 1.25-1.80) but no difference observed for men. The risk of persistent DS and consulting an MHCP at 18 months did not differ between immigrants and non-immigrants. CONCLUSIONS: Female immigrants may particularly benefit from depression screening. Seeking mental health care in the context of DS should be encouraged.


Asunto(s)
Envejecimiento/psicología , Depresión/etnología , Emigrantes e Inmigrantes/psicología , Conocimientos, Actitudes y Práctica en Salud , Conducta de Búsqueda de Ayuda , Servicios de Salud Mental/estadística & datos numéricos , Adulto , Factores de Edad , Anciano , Canadá/epidemiología , Depresión/epidemiología , Depresión/psicología , Emigrantes e Inmigrantes/estadística & datos numéricos , Femenino , Accesibilidad a los Servicios de Salud , Humanos , Estudios Longitudinales , Masculino , Salud Mental , Persona de Mediana Edad , Prevalencia , Factores de Riesgo , Factores Sexuales
18.
Orv Hetil ; 161(36): 1522-1533, 2020 09.
Artículo en Húngaro | MEDLINE | ID: mdl-32886627

RESUMEN

INTRODUCTION: Health disorders may affect negatively work productivity of individuals, leading to absence from work (absenteeism) and/or decreased functioning in the workplace (presenteeism). AIM: To assess the health-related work productivity of the adult population in Hungary by the Work Productivity and Activity Impairment questionnaire (WPAI). METHOD: A cross-sectional survey was performed in 2019 involving a sample (n = 2023) representative for the adult population of Hungary. Socio-demographic characteristics were recorded. Health-related productivity of the participants was assessed by the WPAI questionnaire, health status was measured by the EQ-5D-3L measurement tool and the Minimum European Health Module (MEHM). STATISTICAL ANALYSES: Descriptive statistics were performed, subgroups were compared by Mann-Whitney and Kruskal-Wallis tests. Spearman's rank correlation was applied to analyze the relationship between WPAI, age and EQ-5D-3L index score. RESULTS: Among those in a paid job (n = 1194, 59%), altogether 70 respondents (6%) were absent from work during the week before the survey, which resulted in an average 1.9 (SD = 8.5) work hours loss per week. Presenteeism occurred in 166 (14%) cases. The average absenteeism was 3.6%, presenteeism was 4.4%, and activity impairment in the total sample was 9.5%. Absenteeism did not correlate with age and did not differ significantly across socio-demographic subgroups. Presenteeism was the highest among actively working retired people, disability pensioners and part-time employees. Presenteeism correlated moderately (r = -0.379), absenteeism weakly (r = -0.113) with EQ-5D-3L index. Correlation was significant between activity impairment and age (r = 0.412) as well as the EQ-5D-3L index score (r = -0.592). All WPAI items showed significant worsening across MEHM status levels. CONCLUSION: This is the first study in Hungary to present population reference values with the WPAI. Productivity loss due to presenteeism deserves special attention from the employers as well as from decision makers in the labour, health and social sectors. Orv Hetil. 2020; 161(36): 1522-1533.


Asunto(s)
Absentismo , Eficiencia , Presentismo/estadística & datos numéricos , Trabajo/estadística & datos numéricos , Adulto , Estudios Transversales , Humanos , Hungría , Encuestas y Cuestionarios
19.
Eur J Clin Microbiol Infect Dis ; 28(2): 129-36, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-18830728

RESUMEN

The purpose of this study was to characterise methicillin-resistant Staphylococcus aureus (MRSA) strains isolated in 2005 at the university hospitals of Debrecen, Hungary. Three hundred and thirty-nine MRSA strains were isolated from 102 patients at 18 different clinics. Their sensitivity to oxacillin and ten other antibiotics was determined. For genotypic analysis, phage typing and pulsed-field gel electrophoresis (PFGE) was performed. The rate of MRSA strains increased to 7.2% in 2005, especially at the clinics of surgery, pulmonology and paediatrics. No vancomycin- or teicoplanin-resistant strains were found. The resistance to erythromycin, clindamycin and ciprofloxacin was nearly 100% and multi-resistance was very frequent. Fifty-eight percent of the isolates belonged to mixed phage types and 8% was non-typable. One PFGE clone contained 58.2% of all strains and two further major clones were found at a separately located clinical block, indicating intra-hospital spread. We can conclude that MRSA exhibits an increasing nosocomial problem also in Hungary.


Asunto(s)
Infección Hospitalaria/epidemiología , Staphylococcus aureus Resistente a Meticilina/genética , Fenotipo , Infecciones Estafilocócicas/epidemiología , Técnicas de Tipificación Bacteriana , Infección Hospitalaria/microbiología , Farmacorresistencia Bacteriana , Farmacorresistencia Bacteriana Múltiple , Electroforesis en Gel de Campo Pulsado , Hospitales Universitarios , Humanos , Hungría , Staphylococcus aureus Resistente a Meticilina/clasificación , Pruebas de Sensibilidad Microbiana , Prevalencia , Infecciones Estafilocócicas/microbiología
20.
Transplant Proc ; 51(4): 1289-1292, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-31101216

RESUMEN

The incidence of drug-induced acute liver failure (ALF) has been increasing in recent years. Despite the complex intensive treatment, liver transplant should be performed in progressive cases. A systemic inflammatory response syndrome and the burden of surgical intervention promote abdominal compartment syndrome (ACS); observed preoperatively, they are significant negative prognostic factors. THE CASE: We demonstrate a young woman with liver transplant after ALF and a consecutive ACS. We presumed drug toxicity in the background of the rapidly progressive ALF, based on the preoperative hematologic examination and the histology of the removed liver. An ACS has occurred in the postoperative period that must have been resolved with mesh, and later, anatomic segment 2-3 resection had to be performed to further decrease the pressure. The patient left the hospital after 62 days with good graft function. DISCUSSION: A complex intensive care is mandatory in the case of orthotopic liver transplant for ALF. Outcomes are good after orthotopic liver transplant. An ACS might occur after surgery. In these rare cases a delayed abdominal closure or even a liver resection can be the only solution and sometimes an urgent need to resolve the life-threatening problem.


Asunto(s)
Enfermedad Hepática Inducida por Sustancias y Drogas/cirugía , Síndromes Compartimentales/etiología , Trasplante de Hígado/efectos adversos , Complicaciones Posoperatorias/etiología , Femenino , Humanos , Fallo Hepático Agudo/cirugía , Adulto Joven
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