ABSTRACT
Objetivos: Estimar el efecto de los antimaláricos (AM) sobre los diferentes dominios del índice de daño SLICC (SDI). Métodos: Se estudiaron pacientes con diagnóstico clínico reciente (≤2 años) de lupus eritematoso sistémico (LES) de la cohorte GLADEL. Variable de estudio: aumento en los dominios del SDI desde el ingreso a la cohorte. Variables independientes: características sociodemográficas, clínicas, laboratorio y tratamientos. El efecto de los AM, como variable dependiente del tiempo, sobre los dominios más frecuentes del SDI (ajustado por factores de confusión) fue examinado con un modelo de regresión de Cox multivariado. Resultados: De 1466 pacientes estudiados, 1049 (72%) recibieron AM con un tiempo medio de exposición de 30 meses (Q1-Q3: 11-57) y 665 pacientes (45%) presentaron daño durante un seguimiento medio de 24 meses (Q1-Q3: 8-55); 301 eventos fueron cutáneos, 208 renales, 149 neuropsiquiátricos, 98 musculoesqueléticos, 88 cardiovasculares y 230 otros. Después de ajustar por factores de confusión, el uso de AM se asoció a un menor riesgo de daño renal (HR 0,652; IC 95%: 0,472-0,901) y en el límite de la significancia estadística (HR 0,701, IC 95%: 0,481-1,024) para el dominio neuropsiquiátrico. Conclusión: En GLADEL, el uso de AM se asoció independientemente a un menor riesgo de daño acumulado renal.
Objective: To assess the effects of antimalarials (AM) over the items of the SLICC Damage Index (SDI). Methods: Patients with recent (≤2 years) diagnosis of systemic lupus erythematosus (SLE) from the GLADEL cohort were studied. End-point: increase in items SDI since cohort entry. Independent variables (socio-demographic, clinical, laboratory and treatment) were included. The effect of AM as a time dependent variable on most frequent SDI items (adjusting for potential confounders) was examined with a multivariable Cox regression model. Results: Of the 1466 patients included in this analysis, 1049 (72%) received AM with a median exposure time of 30 months (Q1-Q3: 11-57). Damage occurred in 665 (45%) patients during a median follow-up time of 24 months (Q1-Q3: 8-55). There were 301 integument, 208 renal, 149 neuropsychiatric, 98 musculoskeletal, 88 cardiovascular and 230 others less frequently represented damages. After adjusting for potential confounders at any time during follow-up, a lower risk of renal damage (HR 0.652; 95% CI: 0.472-0.901) and borderline for neuropsychiatric damage (HR 0.701, 95% CI: 0.481-1.024) was found. Conclusion: In the GLADEL cohort, after adjustment for possible confounding factors, AM were independently associated with a reduced risk of renal damage accrual.
Subject(s)
Lupus Erythematosus, Systemic , AntimalarialsABSTRACT
Behçets disease (BD) is a systemic inflammatory vascular disease with several clinical manifestations and geographical differences in disease expression. In Middle Eastern countries it is one of the most common causes of cerebral venous thrombosis. We report a 29-year-old female admitted for acute headache and vomiting. A magnetic resonance image showed a large thrombosis of sagital and transverse sinuses. She developed oral and genital ulcers a week later. Ophthalmologic examination revealed left anterior uveitis and ipsilateral papilledema. Multiple studies ruled out a hypercoagulability syndrome. The patient used oral contraceptives. Anticoagulant therapy was prescribed. A biopsy of a genital ulcer demonstrated diffuse lymphocytic infiltration with vasculitis. After treatment with topical and systemic corticoids, her condition improved. Venous sinus thrombosis followed by oral and genital ulcers is an unusual presentation of Behçets disease.
Subject(s)
Adult , Female , Humans , Behcet Syndrome/complications , Sinus Thrombosis, Intracranial/etiology , Sinus Thrombosis, Intracranial/pathologyABSTRACT
The classical manifestations of Behçet disease are mouth ana genital ulcers, cutaneous lesions ana ocular involvement. The central nervous system is affected in 5 to 59 percent of the cases, usually in the form of meningoencephalitis or sinus venous thrombosis. We report a 17-year-old femóle presenting with a two weeks history of progressive headache, nausea and blurred vision. An initial magnetic resonance was normal. Fifteen days later she was admitted to the hospital due to progression of visual impairment. Shegave a history of oral ulcers and arthralgias. A new magnetic resonance was normal. A lumbar puncture showed a cerebrospinal fluid with a protein concentration of 14 mg/dl, aglucose concentration of 64 mg/dl, 20fresh red blood cells and a pressure of 26 cm H(2)0. The diagnosis of a pseudotumor cerebri, secondary to Behçet disease was raised and the patient was treated with colchicine and acetazolamide. The evolution was torpid and an anterior uveitis was alsofound. After discharge, she continued with oral and genital ulcers and was treated with infliximab. Despite treatment, headache persists.
Subject(s)
Adolescent , Female , Humans , Behcet Syndrome/complications , Pseudotumor Cerebri/etiology , Acetazolamide/therapeutic use , Behcet Syndrome/diagnosis , Behcet Syndrome/drug therapy , Colchicine/therapeutic use , Pseudotumor Cerebri/diagnosis , Pseudotumor Cerebri/drug therapyABSTRACT
Background: The family of lectins known as galectins (galectins 1-14) are involved in the regulation of the immune system and in oncogenesis. During a search for antigens recognized by antibodies produced by a patient with systemic lupus erythematosus (SLE) we found reactivity against galectin-8, for which autoantibodies have not been previously described. Aim: To determine the frequency of autoantibodies against galectin-8 in lupus patients compared with healthy controls. Patients and Methods: Galectin-8 was purified from a bacterial expression system and used in immunoblot assays as antigen to screen the sera of 55 SLE patients and matched controls. Disease activity was evaluated using the Mexican Modification of the Systemic Lupus Erythematosus Disease Activity Index (MEX-SLEDAI). Results: Reactivity against galectin-8 was detected in 30% of SLE patients, compared to 7% of controls (p=0.003). We could not detect any particular SLE manifestation associated to the presence of these autoantibodies. Conclusions: This is the first description of autoantibodies against galectin-8. Its higher frequency in patients with SLE suggests a pathogenic role. Further studies are needed to determine their clinical relevance.
Subject(s)
Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Autoantibodies/blood , Autoantigens/blood , Galectins/immunology , Lupus Erythematosus, Systemic/immunology , Analysis of Variance , Case-Control Studies , Chi-Square Distribution , Galectins/biosynthesis , ImmunoblottingABSTRACT
Se analiza una serie de 45 niños de 2 a 15 años, promedio 7,7 años con cuadro clínico e histológico de GNA, que fueron seguidos hasta por treinta meses. Se realizó en ellos dos estudios histológicos (ML, ME, IN) en biopsias practicadas al comienzo de la enfermedad (promedio 20 días) y la segunda a los 194 ó 590 días en promedio. En el estudio clínico se destaca la normalización del edema a los 8,8 días y la hipertensión a los 4,3 días. Sólo se obtuvo estreptococo betahemolítico en cuatro enfermos, lo que puede relacionarse con el tratamiento antibiótico recibido previamente por estos niños. En el examen de orina un alto porcentaje no presentó hematuria (44%) o proteinuria (49%) en el examen de ingreso y sólo 29,9% tuvo cilindruria. La albuminemia tuvo valores bajo lo normal en el 35,6% de los niños, alfa 2 globulina y gamaglobulina con valores normales en todos. El complemento C3 fue en promedio 41,3m% y sólo 3 enfermos tenían valores sobre 100mg%. Se describen las curvas de antiestreptolisina O (ASO) y STZ en estos niños y se destaca la necesidad de determinaciones seriadas tanto de C3 como ASO y STZ. En el análisis de 194 contactos se obtuvo sólo 5 frotis faríngeos y 10 cutáneos positivos a estreptococo betahemolítico e estafilococo. En el estudio histológico se encontró buena correlación entre la intensidad de las lesiones en microscopía de luz (ML) y microscopía electrónica (ME). En esta última se destaca en la primera biopsia que todos tenían depósitos inmunes intramembranosos segmentarios y 84% con depósitos en joroba. La segunda biopsia mostró una disminución apreciable de la intensidad de las lesiones a los 6 meses y en las realizadas en promedio a los 590 días se encontró ya tres casos que pueden considerarse normales desde el punto de vista histológico. Otros tres con lesiones...