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2.
Medicina (Kaunas) ; 59(8)2023 Jul 25.
Artículo en Inglés | MEDLINE | ID: mdl-37629652

RESUMEN

Objectives: To analyze the characteristics and the predictive factors of the use of rituximab and belimumab in daily practice in patients from the inception cohort Registro Español de Lupus (RELES). Material and methods: The study included 518 patients. We considered patients treated with biologics who received at least one dose of rituximab or belimumab, and possible indications of those manifestations registered at the same time or in the previous 2 months of the start of the therapy. Results: In our cohort, 37 (7%) patients received at least one biological treatment. Rituximab was prescribed in 26 patients and belimumab in 11. Rituximab was mainly prescribed for hemolytic anemia or thrombocytopenia (11 patients, 42%), lupus nephritis and neuropsychiatric lupus (5 patients each, 19%). Belimumab was mostly used for arthritis (8 patients, 73%). In the univariate analysis, the predictive factors at diagnosis for the use of biologic therapy were younger age (p = 0.022), a higher SLEDAI (p = 0.001) and the presence of psychosis (p = 0.011), organic mental syndrome (SOCA) (p = 0.006), hemolytic anemia (p = 0.001), or thrombocytopenia (p = 0.01). In the multivariant model, only younger age, psychosis, and hemolytic anemia were independent predictors of the use of biologics. Conclusions: Rituximab is usually given to patients with hematological, neuropsychiatric and renal involvement and belimumab for arthritis. Psychosis, hemolytic anemia and age at the diagnosis of lupus were independent predictive factors of the use of biological agents. Their global effects are beneficial, with a significant reduction in SLE activity and a low rate of side effects.


Asunto(s)
Artritis , Productos Biológicos , Trombocitopenia , Humanos , Rituximab/uso terapéutico
3.
Theory Biosci ; 142(3): 221-234, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37421497

RESUMEN

For this research, the properties of the logistic growth model for independent and coexisting species were used to set definitions for the possible regulation of one or two growth variables through their coupling parameters. The present analysis is done for the single-species Verhulst model without coupling, the single-species Verhulst model coupled with an exogenous signal, and the two-species Verhulst coexistence growth model which represents six different ecological regimes of interaction. The models' parameters, such as the intrinsic growth rate and the coupling, are defined. Finally, the control results are expressed as lemmas for regulation, and they are shown using a simulation example of a fish population growing independent of human interaction (no harvesting, no fishing) and the simulation of the regulation of said population when the coupling of fish and humans is involved (harvesting, fishing).


Asunto(s)
Modelos Biológicos , Crecimiento Demográfico , Animales , Humanos , Dinámica Poblacional , Simulación por Computador
4.
J Reprod Immunol ; 156: 103827, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36773494

RESUMEN

OBJECTIVE: Several studies have reported a high prevalence of autoimmune diseases such as systemic lupus erythematosus (SLE) in endometriosis patients. The aim of this study was to evaluate the SLE autoimmune antibody profile in patients with deep (DE) and non-deep endometriosis (Non-DE). MATERIALS AND METHODS: Four groups of premenopausal patients were evaluated: patients with DE (n = 50); patients with ovarian endometriomas (Non-DE; n = 50); healthy patients without endometriosis (C group; n = 45); and SLE patients without endometriosis (SLE group; N = 46). Blood samples were obtained and the standard SLE autoimmune profile was evaluated in all patients. Pain symptoms related to endometriosis and clinical SLE manifestations were also recorded. RESULTS: The DE group presented a statistically significant higher proportion of patients with antinuclear antibodies (ANA) (20%) compared to the Non-DE group (4%) and C group (2.2%). Levels of complement were more frequently lower among DE and Non-DE patients although differences did not reach statistical significance. Similarly, anti-dsDNA antibodies and anticoagulant lupus were positive in more patients of the DE group but did not reach statistical significance. The DE group complained of more arthralgia and asthenia compared to the Non-DE and C groups. CONCLUSIONS: The results of this study showed higher positivity of ANA and greater arthralgia and asthenia in patients with DE compared with Non-DE patients and healthy controls, suggesting that they may have a higher susceptibility to autoimmune diseases and present more generalized pain.


Asunto(s)
Enfermedades Autoinmunes , Endometriosis , Lupus Eritematoso Sistémico , Femenino , Humanos , Endometriosis/diagnóstico , Endometriosis/epidemiología , Astenia , Lupus Eritematoso Sistémico/diagnóstico , Lupus Eritematoso Sistémico/epidemiología , Anticuerpos Antinucleares , Enfermedades Autoinmunes/epidemiología , Dolor
5.
Scand J Rheumatol ; 52(2): 190-195, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-35723613

RESUMEN

OBJECTIVES: Patients with laboratory criteria for anti-phospholipid syndrome (APS) but presenting only 'non-criteria' clinical manifestations are scarcely characterized in the literature. We aimed to analyse a cohort of these patients regarding the most prevalent manifestations, antibody profile, and treatments, while establishing a comparison with definite APS patients. METHOD: A retrospective analysis was conducted of individuals fulfilling APS laboratory criteria assessed in two tertiary European hospitals between 2005 and 2020. Patients without clinical criteria but with non-criteria manifestations (termed 'clinical non-criteria') and age-/gender-matched controls were included. RESULTS: Altogether, 75 clinical non-criteria patients were analysed, with haematological (thrombocytopenia, haemolytic anaemia) and 'mild' neurological manifestations (white-matter lesions, migraine) as the most prevalent non-obstetric involvements. These patients displayed more thrombocytopenia [odds ratio (OR) = 3.6, 95% confidence interval (CI) 1.7-7.6; p = 0.001] than controls with APS, but severe manifestations, such as valvular heart disease (p < 0.001), livedoid vasculopathy, seizures, chorea, transverse myelitis, bone necrosis, and alveolar haemorrhage, occurred only in definite APS patients. Corticosteroids were required by 40% of patients with thrombocytopenia. Manifestations in anticoagulated patients included white-matter lesions, nephropathy, superficial vein thrombosis, amaurosis fugax, and livedoid vasculopathy. Suspicion of progression towards systemic lupus erythematosus (SLE) occurred in 19% of non-SLE individuals. CONCLUSION: 'Clinical non-criteria' patients displayed significant treatment use, predominantly haematological involvement, and less severe manifestations than definite APS controls. Some patients may additionally progress to future SLE. The impact of certain manifestations flags them as potential future contributors to classifying individuals as definite APS.


Asunto(s)
Síndrome Antifosfolípido , Vasculopatía Livedoide , Lupus Eritematoso Sistémico , Trombocitopenia , Enfermedades Vasculares , Humanos , Síndrome Antifosfolípido/diagnóstico , Estudios Retrospectivos , Lupus Eritematoso Sistémico/complicaciones , Lupus Eritematoso Sistémico/diagnóstico , Trombocitopenia/diagnóstico , Trombocitopenia/etiología
6.
Appl Radiat Isot ; 184: 110203, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35366603

RESUMEN

A computational simulation of alpha-particle expansion, emitted by 222Rn naturally diluted in the water of a spring located in the state of Puebla Mexico, is presented. This simulation provided information on the volume of expansion of the alpha particles in the vicinity of the spring and thus awareness if there was a radiological risk for the users or the population that lived near to it. Before performing the simulation, several measurements were made to water samples with a dynamic measurement system. This in order to know the level of radon concentration and compare the results obtained with the levels recommended by the United States Environmental Protection Agency (US-EPA) and the World Health Organization (WHO). In addition, to know if there was a radiological risk due to the presence of gamma emitting radionuclides, complementary water analyses were carried out using gamma-ray spectrometry techniques. The simulation was developed using the scientific software of particle interaction with matter, Geant4. The different variables declared for the software parameters are presented in this document. The results of the radon measurements in the water and the computational simulation, determined that there was no radiological risk due to alpha radiation. Furthermore, the results from the gamma-ray spectrometer showed that there was no presence of other hazardous radionuclides in the water.


Asunto(s)
Agua Potable , Manantiales Naturales , Monitoreo de Radiación , Radón , Contaminantes Radiactivos del Agua , Partículas alfa , Agua Potable/análisis , México , Monitoreo de Radiación/métodos , Radioisótopos/análisis , Radón/análisis , Estados Unidos , Contaminantes Radiactivos del Agua/análisis
7.
J Nanobiotechnology ; 20(1): 151, 2022 Mar 21.
Artículo en Inglés | MEDLINE | ID: mdl-35307031

RESUMEN

BACKGROUND: The absence of an effective treatment and vaccine in HIV-1 pandemic place preventive strategies such as safety and effective microbicide development as a central therapeutic approach to control HIV-1 pandemic nowadays. RESULTS: Studies of cytotoxicity, immune population status, inflammation or tissue damage and mainly prophylactic inhibition of HIV-1 infection in vaginal human explants demonstrate the biosafety and effectivity of G2-S16 dendrimer. Human explants treated with G2-S16 dendrimer or treated and HIV-1 infected do not presented signs of irritation, inflammation, immune activation or T cell populations deregulation. CONCLUSIONS: Herein we conclude that G2-S16 dendrimer has demonstrated sufficient efficacy, biosafety, effectivity and behavior in the closest to the real-life condition model represented by the human healthy donor vaginal tissue explants, to raise G2-S16 dendrimer as a promising candidate to clinical trials to develop an effective microbicide against HIV-1 infection.


Asunto(s)
Antiinfecciosos , Dendrímeros , Antiinfecciosos/efectos adversos , Dendrímeros/efectos adversos , Femenino , VIH-1 , Humanos , Vagina
8.
Ocul Immunol Inflamm ; 30(4): 839-844, 2022 May 19.
Artículo en Inglés | MEDLINE | ID: mdl-33216652

RESUMEN

Tumor necrosis factor inhibitors (anti-TNF) have emerged as an effective treatment in noninfectious uveitis (NIU). Anti-TNF may increase the predisposition to infectious disease as tuberculosis (TB). TB-related uveitis in the context of an uveitogenic concurrent systemic immune-mediated disease under anti-TNF treatment remain a diagnostic challenge, deserving special focus on this rare context. Retrospective chart review of patients on anti-TNF drugs for systemic immune-mediated diseases that developed a multicentric microbiologically confirmed active TB with concurrent intraocular involvement.Three patients were recorded. Screening for TB before starting anti-TNF resulted negative in two patients. The other patient had received anti-tuberculous treatment in the past. All showed a microbiologically confirmed extraocular TB after unexpected atypical reactivation of the uveitis shifting to chronic granulomatous pattern.Specialists should be aware of TB reactivation, even with previous negative screening, when ocular uveitis signs and activity do not match with the expected pattern in a patient on anti-TNF drugs.


Asunto(s)
Tuberculosis Ocular , Tuberculosis , Uveítis , Adalimumab/efectos adversos , Humanos , Infliximab/efectos adversos , Estudios Retrospectivos , Tuberculosis/diagnóstico , Tuberculosis Ocular/diagnóstico , Tuberculosis Ocular/tratamiento farmacológico , Inhibidores del Factor de Necrosis Tumoral , Factor de Necrosis Tumoral alfa , Uveítis/inducido químicamente , Uveítis/diagnóstico , Uveítis/tratamiento farmacológico
9.
Clin Exp Dermatol ; 47(2): 351-358, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34431556

RESUMEN

BACKGROUND: Monitoring of disease activity in sclerosing dermatoses (SD) can be challenging and tools to support clinical decision-making are lacking. AIM: To analyse the impact of high-frequency ultrasonography (HFUS) on the clinical management of SD and to describe the US characteristics of disease activity. METHODS: This was a cohort study of patients with various SD [morphoea, systemic sclerosis (SS) and chronic graft-versus-host disease (cGvHD)] who underwent HFUS between January 2017 and August 2019. HFUS criteria for diagnosing active SD were increased Doppler vascularity and/or meeting all B-mode greyscale US signs of activity. Discordance in SD activity between HFUS and clinical examination was evaluated at the time of the first US assessment. Changes in patient management were instituted after HFUS were recorded. RESULTS: In total, 72 patients (31 with morphoea, 19 with SS and 22 with cGvHD), who underwent 163 HFUS sessions in total, were included. All HFUS-active morphoea lesions exhibited increased vascularity, and all HFUS-active SS exhibited dermal thickening and dermal hypoechogenicity. HFUS-active cGvHD displayed increased dermal thickness and loss of definition of the dermal-hypodermal junction, and there were signs of panniculitis in 80% of cases and of increased vascularity in 70%. Discordance in disease activity between clinical and HFUS evaluation was found in 17 (23.6%) patients. Changes in clinical management after HFUS were made for 14 (19.4%) patients: treatment discontinuation for 6 patients (42.9%), treatment initiation for 5 (35.7%), medication change for 2 (14.3%) and skin biopsy taken for 1 (7.1%). CONCLUSION: HFUS seems an efficacious support tool in the monitoring of SD activity with a notable impact on clinical management. Further studies are warranted to evaluate the impact of HFUS-supported management changes on SD outcomes.


Asunto(s)
Enfermedad Injerto contra Huésped/diagnóstico por imagen , Esclerodermia Localizada/diagnóstico por imagen , Esclerodermia Sistémica/diagnóstico por imagen , Piel/diagnóstico por imagen , Ultrasonografía/métodos , Adulto , Anciano , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Piel/patología
10.
Arch Soc Esp Oftalmol ; 96(7): 347-352, 2021 Jul.
Artículo en Español | MEDLINE | ID: mdl-34629695

RESUMEN

INTRODUCTION: The objetive of these study is to know the characteristics of COVID-19 in patients with uveitis associated with Systemic Autoimmune Disease (SAD) through telematic survey. MATERIAL AND METHODS: Internal Medicine Society and Group of Systemic Autoimmune disease conducted a telematic survey of patients with SAD to learn about the characteristics of COVID-19 in this population. RESULTS: A total of 2,789 patients answered the survey, of which 28 had a diagnosis of uveitis associated with SAE. The majority (82%) were female and caucasian (82%), with a mean age of 48 years. The most frequent SAEs were Behçet's disease followed by sarcoidosis and systemic lupus erythematosus. 46% of the patients were receiving corticosteroid treatment at a mean prednisone dose of 11 mg/day. Regarding infection, 14 (50%) patients reported symptoms compatible with SARS-CoV-2 infection. RT-PCR was performed on the nasopharyngeal smear in two patients and in one of them (4%) it was positive. CONCLUSIONS: Both asymptomatic and symptomatic COVID-19 patients with ASD-associated UNI had received similar immunosuppressive treatment.

11.
Arch Soc Esp Oftalmol (Engl Ed) ; 96(7): 347-352, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34217471

RESUMEN

INTRODUCTION: The objective of these study is to know the characteristics of COVID-19 in patients with uveitis associated with Systemic Autoimmune Disease (SAD) through telematic survey. MATERIAL AND METHODS: Internal Medicine Society and Group of Systemic Autoimmune disease conducted a telematic survey of patients with SAD to learn about the characteristics of COVID-19 in this population. RESULTS: A total of 2,789 patients answered the survey, of which 28 had a diagnosis of uveitis associated with SAE. The majority (82%) were female and caucasian (82%), with a mean age of 48 years. The most frequent SAEs were Behçet's disease followed by sarcoidosis and systemic lupus erythematosus. 46% of the patients were receiving corticosteroid treatment at a mean prednisone dose of 11 mg/day. Regarding infection, 14 (50%) patients reported symptoms compatible with SARS-CoV-2 infection. RT-PCR was performed on the nasopharyngeal smear in two patients and in one of them (4%) it was positive. CONCLUSIONS: Both asymptomatic and symptomatic COVID-19 patients with ASD-associated UNI had received similar immunosuppressive treatment.


Asunto(s)
Enfermedades Autoinmunes/complicaciones , COVID-19/complicaciones , Uveítis/etiología , Adulto , Anciano , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Autoinforme
12.
Am J Ophthalmol Case Rep ; 22: 101100, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33997470

RESUMEN

PURPOSE: To describe a case series of scleritis associated with IgA vasculitis (IgAV) at a tertiary referral center. OBSERVATIONS: Three men with scleritis associated with IgAV were identified: one with anterior scleritis alone, one with anterior scleritis and peripheral ulcerative keratitis (sclerokeratitis), and one with anterior and posterior scleritis. Visual acuity was preserved except from the patient who developed posterior scleritis. Ocular pain was the main symptom at presentation. All patients had a previous history of palpable purpura, but only one was aware of his underlying IgAV. Laboratory results revealed microhematuria and proteinuria with normal urinary ß2 microglobulin levels and negative serum ANCAs. Skin or kidney biopsy demonstrated leukocytoclastic vasculitis or glomerulonephritis with dominant IgA immune deposits. CONCLUSIONS AND IMPORTANCE: Although uncommon, IgAV should be included in the differential diagnosis of anterior scleritis alone or associated with peripheral ulcerative keratitis or posterior scleritis, even in systemically asymptomatic patients. Urinalysis should not be underestimated in assessment of scleritis to detect early stages of glomerular disease. Scleritis may be the first manifestation whose study may lead to the diagnosis of IgAV. Multidisciplinary approach is necessary to prevent irreversible organ damage such as renal failure.

13.
Rev Clin Esp (Barc) ; 221(4): 221-225, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33998501

RESUMEN

OBJECTIVE: To identify the multidisciplinary uveitis units in which internal medicine departments participate in collaboration with ophthalmology departments in Spain. MATERIAL AND METHODS: We conducted a multicentre, observational cross-sectional study that collected information using a structured survey sent by email to 1015 partners of the Systemic Autoimmune Diseases Workgroup of the Spanish Society of Internal Medicine (GEAS-SEMI) from the 1st to the 31st of March 2017. RESULTS: We identified a total of 21 support units/consultations for the ophthalmology departments. Seventeen (81%) of the units were specific internal medicine-ophthalmology consultations, and 5 (24%) units had been created in the past 5 years. A median of 460 patients were assessed per unit by the end of the year. CONCLUSIONS: This study shows, for the first time in Spain, the important and close collaboration between ophthalmologists and internists, especially in highly specialized national reference institutions.


Asunto(s)
Enfermedades Autoinmunes , Uveítis , Enfermedades Autoinmunes/epidemiología , Enfermedades Autoinmunes/terapia , Estudios Transversales , Humanos , Medicina Interna , España , Uveítis/epidemiología , Uveítis/terapia
15.
Rev Clin Esp ; 2020 Feb 25.
Artículo en Inglés, Español | MEDLINE | ID: mdl-32111438

RESUMEN

OBJECTIVE: To identify the multidisciplinary uveitis units in which internal medicine departments participate in collaboration with ophthalmology departments in Spain. MATERIAL AND METHODS: We conducted a multicentre, observational cross-sectional study that collected information using a structured survey sent by email to 1015 partners of the Systemic Autoimmune Diseases Workgroup of the Spanish Society of Internal Medicine (GEAS-SEMI) from the 1st to the 31st of March 2017. RESULTS: We identified a total of 21 support units/consultations for the ophthalmology departments. Seventeen (81%) of the units were specific internal medicine-ophthalmology consultations, and 5 (24%) units had been created in the past 5 years. A median of 460 patients were assessed per unit by the end of the year. CONCLUSIONS: This study shows, for the first time in Spain, the important and close collaboration between ophthalmologists and internists, especially in highly specialised national reference institutions.

16.
Rev Neurol ; 70(6): 206-212, 2020 Mar 16.
Artículo en Español | MEDLINE | ID: mdl-32149380

RESUMEN

INTRODUCTION: Studies about childhood epilepsy with centrotemporal spikes (CECTS), most of them retrospective, include patients with highly heterogeneous features. AIM: To investigate the prognostic value of objective diagnostic criteria for CECTS applied at six month of evolution of epilepsy. PATIENTS AND METHODS: All patients with one or more unprovoked epileptic seizures (n = 827) were prospectively included. We investigated prognosis and clinical features of five groups of patients defined in accordance with the presence of centrotemporal spikes (CTS) and the following signs: speech arrest or dysarthria; hemifacial tonic or clonic contractions; and prominent sialorrhea. Group A (two or three signs and CTS), group B (one sign and CTS), group C (no sign and CTS), group D (two or three signs without CTS), group E (tonic-clonic generalized seizures and CTS). RESULTS: 52, 12, 12, 22 and 8 cases were classified respectively into groups A, B, C, D and E. Patients of the five groups presented a similar semiology but differences in the probability of attaining a 3-years remission without antiepileptic treatment were observed: group A (98%), group B (92%), group C (90%), group D (77%), group E (100%). The difference between groups A and D was statistically significant. CONCLUSION: Cases of group A could be considered as well-defined cases of CECTS; cases of groups B, C and E, as probable cases of CECTS, and cases of group D must be excluded from the diagnosis.


TITLE: Pronóstico de la epilepsia de la infancia con puntas centrotemporales: utilidad clínica de unos criterios diagnósticos objetivos.Introducción. Los estudios sobre el pronóstico de la epilepsia de la infancia con puntas centrotemporales (EIPCT), la mayoría retrospectivos, incluyen a pacientes con características clínicas muy heterogéneas. Objetivo. Investigar el valor pronóstico de unos criterios diagnósticos objetivos de EIPCT aplicados a los seis meses de evolución de la epilepsia. Pacientes y métodos. Se incluyó prospectivamente a todos los pacientes con una o más crisis epilépticas no provocadas (n = 827). Se investigó el pronóstico y las características clínicas de cinco grupos de pacientes, definidos según la presencia de punta-onda centrotemporal (POCT) y de los siguientes signos: bloqueo del habla o disartria, contracciones tónicas o clónicas hemifaciales y sialorrea prominente. Grupo A (dos o tres signos y POCT), grupo B (un signo y POCT), grupo C (ningún signo y POCT), grupo D (dos o tres signos sin POCT), grupo E (crisis tonicoclónicas generalizadas y POCT). Resultados. Se clasificaron 52, 12, 12, 22 y 8 casos, respectivamente, en los grupos A, B, C, D y E. Los pacientes de los cinco grupos presentaron una semiología similar, pero se observaron diferencias en la probabilidad de alcanzar una remisión inicial de tres años sin crisis ni tratamiento antiepiléptico: grupo A (98%), grupo B (92%), grupo C (90%), grupo D (77%) y grupo E (100%). La diferencia entre los grupos A y D fue estadísticamente significativa. Conclusión. Los casos del grupo A podrían considerarse como casos bien definidos de EIPCT; los casos de los grupos B, C y E, como casos probables, y los del grupo D deberían excluirse del diagnóstico.


Asunto(s)
Epilepsia Rolándica/diagnóstico , Adolescente , Niño , Preescolar , Electroencefalografía , Epilepsia Rolándica/diagnóstico por imagen , Femenino , Estudios de Seguimiento , Humanos , Lactante , Masculino , Neuroimagen , Pronóstico , Estudios Prospectivos , Evaluación de Síntomas
17.
J Aquat Anim Health ; 32(1): 28-31, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31965615

RESUMEN

A viromics study on the intestinal contents of migratory wild ducks of the genera Anas, Mareca, Spatula, and Oxyura during their winter stay in Mexico showed the presence of the virus family Alloherpesviridae. The genus Cyprinivirus is part of this family and includes cyprinid herpesvirus 3 (CyHV3). This is the etiological agent of the lethal disease known as koi herpesvirosis, which affects different strains of Common Carp Cyrprinus carpio. In this study, samples of the contents of 87 wild duck intestines were analyzed by endpoint PCR, of which 7 samples were positive for the amplification of the TK gene fragment corresponding to CyHV3. These results contribute to the knowledge about the spread of this virus to other species of aquatic animals in areas where fish and ducks coexist.


Asunto(s)
Enfermedades de las Aves/epidemiología , Patos , Infecciones por Herpesviridae/veterinaria , Herpesviridae/aislamiento & purificación , Animales , Animales Salvajes , Enfermedades de las Aves/virología , Infecciones por Herpesviridae/epidemiología , Infecciones por Herpesviridae/virología , Intestinos/virología , México/epidemiología , Reacción en Cadena de la Polimerasa/veterinaria , Prevalencia
18.
J Dairy Sci ; 103(3): 2896-2905, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-31928754

RESUMEN

The objective of this project was to develop and test a web-based virtual dairy herd to help students understand the structure and functioning of a dairy herd, and to promote active learning. At the beginning of the course, the instructor defines the profiles of herds to be assigned to students (e.g., herd size, production, diets, fertility). Each student has a unique herd and engages in decision-making for desired management practices in the herd. Modeled events are based on cow physiology and normal dairy herd management practices. Students' activities and decisions include heat detection, insemination, pregnancy diagnosis, dry-off, diet specifications, feeding groups, colostrum and milk-replacer feeding, weaning, treatment of diseases, and milk withdrawal from the tank if antibiotics are used, among others. The daily output provides information on technical indexes, economic performance, counters of incorrect decisions as feedback for students, and score. Time in class can be devoted to discussions of dairy management issues. Additional exercises based on students' own herds (e.g., calculating required space for cows, land for forage production, manure management) can also be implemented. Students' performance in the virtual dairy farm was monitored over 3 years. The average score (n = 326) was 87.8 ± 1.1 over 100 points, suggesting that self-learning with the virtual dairy farm was highly successful. At the end of each semester, students (n = 277) responded to a survey on the experience of working with the virtual dairy herd. Most students (>87%) agreed that the virtual dairy herd was more effective and motivating than traditional lectures and helped them understand dairy production better. In an unannounced test conducted at least 2 wk before the final exam, students (n = 207) were asked 14 questions on dairy cattle and 14 similar questions on other species taught in the same class through traditional lectures. A similar test on the same students (n = 142) was conducted in their fifth semester (2 years later). Results were better in dairy compared with other species questions in the first (9.6 vs. 3.7) and fifth (8.0 vs. 3.8) semesters. The virtual dairy herd is an effective tool for teaching introductory courses in dairy production. The program can be accessed at www.virtualdairyfarm.org, and a manual and videos with instructions for instructors and students are available online.


Asunto(s)
Bovinos/fisiología , Calostro/metabolismo , Industria Lechera/educación , Fertilidad , Leche/metabolismo , Interfaz Usuario-Computador , Animales , Dieta/veterinaria , Femenino , Inseminación , Lactancia , Sustitutos de la Leche/metabolismo , Embarazo
19.
Lupus ; 28(9): 1158-1166, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-31299879

RESUMEN

INTRODUCTION: Although extensively characterized in the outpatient setting, systemic lupus erythematosus (SLE) in the hospitalization wards is still scarcely portrayed, particularly in the perspective of its evolution over the years. METHODS: Retrospective analysis of SLE patients hospitalized in the Department of Autoimmune Diseases of a university hospital during a 20-year period (1995-2015), describing hospitalization characteristics, causes and predictors of outcome. RESULTS: A total of 814 hospitalizations concerning 339 patients were analysed. The main causes of admission were flare (40.2%), infection (19.2%), diagnostic procedures (18.8%) and thrombotic events (5.4%). Therapy with cyclophosphamide (odds ratio (OR) 1.908, p = 0.047) was associated with admission due to infection, while antimalarials displayed a protective effect (OR 0.649, p = 0.024). Nearly 3.9% of patients required admission to an intensive care unit, with associated antiphospholipid syndrome (OR 7.385, p = 0.04) standing as a predicting factor for this outcome. Readmission at 30 days occurred in 5.8% of patients, with thrombocytopenia (OR 6.007, p = 0.002) and renal involvement (OR 3.362, p = 0.032) featuring as predicting factors. Eight patients died, with antiphospholipid syndrome (OR 26.814, p = 0.02) and thrombocytopenia (OR 31.523, p = 0.01) being associated with mortality. There was no significant variation in patients' demographics or admission causes across the 20-year period, except for a decrease in admissions due to thrombotic and musculoskeletal causes. Recently, an increase in the use of mycophenolate mofetil and lower doses of glucocorticoids were noted. CONCLUSION: While demographics of SLE hospitalizations have not markedly changed over the past 20 years, changes in therapy patterns were observed. Thrombocytopenia, antiphospholipid syndrome and renal involvement featured as predictors of poor outcome.


Asunto(s)
Síndrome Antifosfolípido/epidemiología , Hospitalización/estadística & datos numéricos , Lupus Eritematoso Sistémico/terapia , Trombocitopenia/epidemiología , Adulto , Síndrome Antifosfolípido/etiología , Ciclofosfamida/administración & dosificación , Femenino , Humanos , Inmunosupresores/administración & dosificación , Lupus Eritematoso Sistémico/mortalidad , Lupus Eritematoso Sistémico/fisiopatología , Masculino , Persona de Mediana Edad , Readmisión del Paciente/estadística & datos numéricos , Estudios Retrospectivos , España , Trombocitopenia/etiología
20.
Arch Soc Esp Oftalmol (Engl Ed) ; 94(9): 419-425, 2019 Sep.
Artículo en Inglés, Español | MEDLINE | ID: mdl-31277806

RESUMEN

OBJECTIVE: To describe uveitis complications and visual acuity in a cohort of 500 patients in a multidisciplinary unit in northern Spain. MATERIAL AND METHODS: Retrospective-prospective study of complications and visual acuity of 500 adult patients evaluated in the Multidisciplinary Unit of the Navarra Hospital Complex from the period January 2010 until March 2015. An analysis was made of the complications, visual acuity and visual loss, with a follow-up of one-year. A comparative study was also made of the complications with 2 previous series published in Madrid and Holland. RESULTS: Moderate-severe visual loss was 13.5% in the right eye, and 13% in the left eye. Visual loss was associated with an age of 65 years or above. Complications were observed in 35% of patients, and cataract was the most frequent complication (10%), followed by synechiae (8%), and macular oedema (5%). Compared with the 2 other series, the present cohort showed a higher proportion of cataracts. CONCLUSIONS: Visual loss was associated with older age and cataract was the most common complication in our study.


Asunto(s)
Uveítis/complicaciones , Agudeza Visual , Adulto , Humanos , Estudios Prospectivos , Estudios Retrospectivos , España/epidemiología , Uveítis/epidemiología
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