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1.
Pediatr Nephrol ; 39(2): 473-482, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37608237

RESUMEN

BACKGROUND: Although evidence has confirmed that cyclosporine (CS) is efficacious against childhood-onset steroid-dependent and steroid-resistant nephrotic syndrome (SD/SRNS), some patients may continue to relapse during adulthood. However, predictive factors for adult active disease and kidney complications, such as chronic kidney disease (CKD) and hypertension, in this cohort remain unknown. METHODS: We conducted a retrospective study on the long-term outcomes of 81 young adults with childhood-onset SD/SRNS treated with CS. The primary endpoint was the probability of active disease into adulthood. The secondary endpoint was the probability of developing kidney complications. RESULTS: At the last follow-up (median age, 23.2 years; median disease duration, 15.8 years), 44 adult patients (54%) continued to have active disease, whereas 16 patients developed CKD or hypertension, respectively. The proportion of patients developing kidney complications was similar between the active disease and long-term remission groups. Young age at NS onset and history of relapse during the initial CS (median, 31 months) were independent predictive factors for active disease. Acute kidney injury at NS onset, focal segmental glomerulosclerosis, and irreversible CS nephrotoxicity were identified as risk factors for the development of CKD, whereas older age was identified as a risk factor for the development of CKD and hypertension. CONCLUSIONS: More than 50% of adult survivors treated with CS continued to have active disease, and each 20% developed CKD or hypertension. A long-term follow-up is necessary for patients with SD/SRNS to identify the development of kidney complications later in adulthood that can be attributed to prior disease and CS treatment in childhood, irrespective of disease activity. A higher resolution version of the Graphical abstract is available as Supplementary information.


Asunto(s)
Hipertensión , Síndrome Nefrótico , Insuficiencia Renal Crónica , Adulto Joven , Humanos , Adulto , Ciclosporina/efectos adversos , Síndrome Nefrótico/tratamiento farmacológico , Síndrome Nefrótico/epidemiología , Síndrome Nefrótico/complicaciones , Inmunosupresores/efectos adversos , Estudios Retrospectivos , Insuficiencia Renal Crónica/epidemiología , Insuficiencia Renal Crónica/complicaciones , Esteroides/efectos adversos , Hipertensión/tratamiento farmacológico , Hipertensión/epidemiología , Hipertensión/complicaciones , Recurrencia , Resultado del Tratamiento
2.
Arch Gynecol Obstet ; 310(2): 943-951, 2024 08.
Artículo en Inglés | MEDLINE | ID: mdl-38834885

RESUMEN

INTRODUCTION: Inflammatory bowel diseases (IBD) are frequently diagnosed between the ages of 20 and 40, i.e. the most fertile period for women. The potential impact of IBD on pregnancy is therefore a frequent issue. STUDY OBJECTIVE: To determine the impact of disease activity during pregnancy on the obstetric prognosis of women with IBD. METHODS: Gastroenterological and obstetric data were collected for patients for all consecutive patients with IBD and pregnancy followed up at Amiens University Hospital (Amiens, France) between 2007 and 2021. Obstetrics outcome of patients with and without active disease were compared. RESULTS: One hundred patients were included (81 with Crohn's Disease for 198 pregnancies, 19 with Ulcerative Colitis for 37 pregnancies). Patients with active IBD (21 patients, 24 pregnancies) were more likely to be admitted to hospital during pregnancy (66.6, vs. 5.2% in the inactive IBD group; p < 0.001), to give birth prematurely (mean term: 36.77 weeks of amenorrhoea (WA) vs. 38.7 WA, respectively; p = 0.02) and to experience very premature delivery (before 32 WA: 12.5 vs. 1.4%, respectively; p = 0.02). Patients with active disease had a shorter term at birth (38.4 WA, vs. 39.8 WA in the inactive disease group; p < 0.0001), a lower birth weight (2707 g vs. 3129 g, respectively; p = 0.01) and higher caesarean section rate (54.2 vs. 16.9%, respectively; p = 0.03). CONCLUSION: Women with IBD patients are at risk of pregnancy related complications, especially when IBD is active. Controlling disease activity at conception and close monitoring of the pregnancy is essential to improve both gastroenterological and obstetric outcome.


Asunto(s)
Enfermedad de Crohn , Complicaciones del Embarazo , Resultado del Embarazo , Humanos , Femenino , Embarazo , Adulto , Complicaciones del Embarazo/epidemiología , Resultado del Embarazo/epidemiología , Enfermedad de Crohn/complicaciones , Enfermedad de Crohn/epidemiología , Enfermedad de Crohn/terapia , Nacimiento Prematuro/epidemiología , Colitis Ulcerosa/complicaciones , Colitis Ulcerosa/epidemiología , Colitis Ulcerosa/terapia , Enfermedades Inflamatorias del Intestino/complicaciones , Enfermedades Inflamatorias del Intestino/epidemiología , Enfermedades Inflamatorias del Intestino/terapia , Francia/epidemiología , Recién Nacido , Estudios Retrospectivos , Adulto Joven , Cesárea/estadística & datos numéricos
3.
Int J Colorectal Dis ; 38(1): 74, 2023 Mar 20.
Artículo en Inglés | MEDLINE | ID: mdl-36939923

RESUMEN

PURPOSE: The aim of this study was to investigate the burden of disease among a real-world cohort of patients with prevalent Crohn's disease (CD) in Germany. METHODS: We conducted a retrospective cohort analysis using administrative claims data from the German AOK PLUS health insurance fund. Continuously insured patients with a CD diagnosis between 01 October 2014 and 31 December 2018 were selected and followed for at least 12 months or longer until death or end of data availability on 31 December 2019. Medication use (biologics, immunosuppressants (IMS), steroids, 5-aminosalicylic acid) was assessed sequentially in the follow-up period. Among patients with no IMS or biologics (advanced therapy), we investigated indicators of active disease and corticosteroid use. RESULTS: Overall, 9284 prevalent CD patients were identified. Within the study period, 14.7% of CD patients were treated with biologics and 11.6% received IMS. Approximately 47% of all prevalent CD patients had mild disease, defined as no advanced therapy and signs of disease activity. Of 6836 (73.6%) patients who did not receive advanced therapy in the follow-up period, 36.3% showed signs of active disease; 40.1% used corticosteroids (including oral budesonide), with 9.9% exhibiting steroid dependency (≥ 1 prescription every 3 months for at least 12 months) in the available follow-up. CONCLUSIONS: This study suggests that there remains a large burden of disease among patients who do not receive IMS or biologics in the real world in Germany. A revision of treatment algorithms of patients in this setting according to the latest guidelines may improve patient outcomes.


Asunto(s)
Productos Biológicos , Enfermedad de Crohn , Administración Financiera , Humanos , Enfermedad de Crohn/tratamiento farmacológico , Enfermedad de Crohn/epidemiología , Estudios Retrospectivos , Inmunosupresores/uso terapéutico , Costo de Enfermedad , Productos Biológicos/efectos adversos
4.
Rheumatol Int ; 43(9): 1665-1674, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37332014

RESUMEN

Coping with a chronic disease such as rheumatoid arthritis (RA) involves significant changes in life and promotes stressful situations. The inability to cope with stress can contribute to the lack of effectiveness of therapy. The aim of this study was to evaluate the relationship between perceived stress, coping strategies, and the clinical status of RA patients determined by C-reactive protein (CRP) and Disease Activity Score (DAS28). 165 subjects were studied, 84 of them had RA and the rest were controls. Standardised questionnaires were used: the Inventory for the Measurement of Coping Strategies (Mini-COPE) and the Perceived Stress Scale (PSS-10). A self-administered questionnaire was used to collect sociodemographic data. The blood levels of protein CRP and cortisol were determined. DAS28 was obtained from medical records. The study was cross-sectional. The mean severity of perceived stress PSS-10 was not significantly different between the control and study groups. RA patients most often used coping strategies such as active coping, planning, and acceptance. Compared to the control group, they used the strategy of turning to religion significantly more often (1.8 vs 1.4; p = 0.012). Women with RA who had higher cortisol levels were more likely to use positive reevaluation, seeking emotional support and instrumental support, as well as the denial strategy. In men with RA, high stress was associated with twice as high CRP levels compared to patients with low stress (p = 0.038). As the levels of CRP protein levels (p = 0.009) and the DAS28 index (p = 0.005) increased, patients were more likely to use a denial strategy.


Asunto(s)
Artritis Reumatoide , Hidrocortisona , Masculino , Humanos , Femenino , Estudios Transversales , Adaptación Psicológica , Artritis Reumatoide/tratamiento farmacológico , Proteína C-Reactiva/metabolismo , Estrés Psicológico
5.
Rheumatol Int ; 43(5): 859-866, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-36912941

RESUMEN

Rheumatoid arthritis (RA) is a chronic systemic connective tissue disease of autoimmune basis. It is characterized by inflammation of joints and systemic complications. The etiopathogenesis is still unknown. Predisposing factors for the disease include genetic, immunological and environmental. Chronic disease and the stress experienced by patients disrupt the body's homeostatic state and weaken the human immune system. Reduced immunity and endocrine disruption may influence the development of autoimmune diseases and exacerbate their course. The aim of the study was to investigate whether there is a relationship between the blood levels of hormones such as cortisol, serotonin, melatonin and the clinical status of RA patients as determined by the DAS28 index and CRP protein. A total of 165 people participated in the study of these 84 subjects had RA and the rest were the control group. All participants completed a questionnaire and had their blood drawn to determine hormones. Patients with RA had higher plasma cortisol (324.6 ng/ml vs. 292.9 ng/ml) and serotonin concentrations (67.9 ng/ml vs. 22.1 ng/ml) and lower plasma melatonin (116.8 pg/ml vs. 330.2 pg/ml) compared to controls. Patients whose CRP concentration were above normal also had elevated plasma cortisol concentration. No significant association was observed in RA patients between plasma melatonin, serotonin and DAS28 values. However, it can be concluded that those with high disease activity had lower melatonin levels as compared to patients with low and moderate DAS28 values. Significant differences were found between RA patients not using steroids and plasma cortisol (p = 0.035). In RA patients, it was observed that as plasma cortisol concentration increased, the chance of having an elevated DAS28 score, indicating high disease activity, increased.


Asunto(s)
Artritis Reumatoide , Melatonina , Humanos , Hidrocortisona , Serotonina , Biomarcadores , Proteína C-Reactiva/metabolismo , Índice de Severidad de la Enfermedad
6.
Int Orthop ; 47(11): 2669-2681, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37453982

RESUMEN

PURPOSE: Total hip arthroplasty (THA) provides a good treatment option for the patients in late arthritis stage. We present our experience of THA in various spectrums of disease. METHODS: Retrospective study including 23 advanced tubercular hip arthritis patients over a period of 13 years. The patients with active discharging sinus were excluded from the study. The patients were divided into three groups: group 1 (healed TB), group 2 (active TB), and group 3 (intraoperative surprise). The preoperative and postoperative antitubercular treatment (ATT) was administered to all the patients as per the protocol for various duration. All patients underwent THA (cementless or hybrid) after investigations including MRI. The patients were followed up with clinic-radiological and laboratory investigations. RESULTS: The mean age of the patients was 58.2 years with 16 males and seven females. There were 14 healed TB hips, eight active TB hips, and one intraoperative TB hip patient. Preoperative ATT duration in group 1 varied from one to two weeks and in group 2 patient's average was 9.6 weeks (range: 6-12weeks). Postoperatively, ATT was given for a minimum of ten months extending to 16 months. Cementless THA was performed in 17 patients and hybrid THA (cemented stem) in six patients. Only one patient had aseptic loosening of the stem and revision arthroplasty was done. CONCLUSION: THA is a viable option and provides mobile, stable hip in tubercular hip arthritis even in active TB hip patients. ATT is important in the management and prevent the reactivation of the disease.


Asunto(s)
Artritis , Artroplastia de Reemplazo de Cadera , Prótesis de Cadera , Masculino , Femenino , Humanos , Persona de Mediana Edad , Artroplastia de Reemplazo de Cadera/efectos adversos , Artroplastia de Reemplazo de Cadera/métodos , Articulación de la Cadera/diagnóstico por imagen , Articulación de la Cadera/cirugía , Prótesis de Cadera/efectos adversos , Estudios Retrospectivos , Resultado del Tratamiento , Artritis/cirugía , Antituberculosos/uso terapéutico , Estudios de Seguimiento , Reoperación
7.
Clin Gastroenterol Hepatol ; 20(1): 116-125.e5, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-33039585

RESUMEN

BACKGROUND & AIMS: Tofacitinib is an oral, small molecule Janus kinase inhibitor for the treatment of ulcerative colitis (UC). The efficacy and safety of tofacitinib in patients with moderate to severe UC, up to 1 year, have been reported. We investigated maintenance of efficacy in patients in remission after 52 weeks of maintenance treatment in the pivotal phase 3 study (OCTAVE Sustain); these patients received open-label, long-term treatment with tofacitinib 5 mg twice daily. METHODS: Patients with moderate to severe UC who completed a 52-week, phase 3 maintenance study (OCTAVE Sustain) were eligible to enroll into the ongoing, phase 3, multicenter, open-label, long-term extension (OCTAVE Open). We analyzed data from 142 patients who were in remission following tofacitinib treatment in OCTAVE Sustain who received tofacitinib 5 mg twice daily during OCTAVE Open. We assessed efficacy (including remission [based on total Mayo score], endoscopic improvement, clinical response, and partial Mayo score up to month 36 of OCTAVE Open) and safety data. RESULTS: After 12 months of tofacitinib 5 mg twice daily in OCTAVE Open, 68.3% of patients were in remission, 73.9% had endoscopic improvement, and 77.5% had a clinical response. At month 36, 50.4%, of the patients were in remission, 55.3% had endoscopic improvement, and 56.0% had a clinical response. The safety profile of tofacitinib 5 mg twice daily revealed no new safety risks associated with long-term exposure up to 36 months. CONCLUSIONS: Efficacy endpoints were maintained for up to 36 months, regardless of prior tofacitinib dose, including patients who reduced from tofacitinib 10 mg to 5 mg twice daily upon OCTAVE Open entry. No new safety risks were identified. ClinicalTrials.gov: OCTAVE Sustain (NCT01458574); OCTAVE Open (NCT01470612).


Asunto(s)
Colitis Ulcerosa , Inhibidores de las Cinasas Janus , Colitis Ulcerosa/tratamiento farmacológico , Humanos , Inhibidores de las Cinasas Janus/efectos adversos , Inhibidores de las Cinasas Janus/uso terapéutico , Piperidinas/efectos adversos , Piperidinas/uso terapéutico , Pirimidinas , Inducción de Remisión , Resultado del Tratamiento
8.
Int Immunol ; 33(5): 281-298, 2021 04 22.
Artículo en Inglés | MEDLINE | ID: mdl-33406267

RESUMEN

Several facets of the host immune response to Salmonella infection have been studied independently at great depths to understand the progress and pathogenesis of Salmonella infection. The circumstances under which a Salmonella-infected individual succumbs to an active disease, evolves as a persister or clears the infection are not understood in detail. We have adopted a system-level approach to develop a continuous-time mechanistic model. We considered key interactions of the immune system state variables with Salmonella in the mesenteric lymph node to determine the final disease outcome deterministically and exclusively temporally. The model accurately predicts the disease outcomes and immune response trajectories operational during typhoid. The results of the simulation confirm the role of anti-inflammatory (M2) macrophages as a site for persistence and relapsing infection. Global sensitivity analysis highlights the importance of both bacterial and host attributes in influencing the disease outcome. It also illustrates the importance of robust phagocytic and anti-microbial potential of M1 macrophages and dendritic cells (DCs) in controlling the disease. Finally, we propose therapeutic strategies for both antibiotic-sensitive and antibiotic-resistant strains (such as IFN-γ therapy, DC transfer and phagocytic potential stimulation). We also suggest prevention strategies such as improving the humoral response and macrophage carrying capacity, which could complement current vaccination schemes for enhanced efficiency.


Asunto(s)
Inmunidad Humoral/inmunología , Infecciones por Salmonella/inmunología , Salmonella/inmunología , Fiebre Tifoidea/inmunología , Animales , Humanos , Ganglios Linfáticos/inmunología , Ganglios Linfáticos/microbiología , Macrófagos/inmunología , Macrófagos/microbiología , Ratones , Ratones Noqueados , Infecciones por Salmonella/microbiología , Fiebre Tifoidea/microbiología
9.
Mult Scler ; 28(4): 573-582, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-34378446

RESUMEN

BACKGROUND: Alemtuzumab efficacy and safety was demonstrated in CARE-MS I and extension studies (CAMMS03409; TOPAZ). OBJECTIVE: Evaluate serum neurofilament light chain (sNfL) in CARE-MS I patients and highly active disease (HAD) subgroup, over 7 and 2 years for alemtuzumab and subcutaneous interferon beta-1a (SC IFNB-1a), respectively. METHODS: Patients received SC IFNB-1a 44 µg 3×/week or alemtuzumab 12 mg/day at baseline and month 12, with further as-needed 3-day courses. sNfL was measured using single-molecule array (Simoa™). HAD definition was ⩾2 relapses in year before randomization and ⩾1 baseline gadolinium-enhancing lesion. RESULTS: Baseline median sNfL levels were similar in alemtuzumab (n = 354) and SC IFNB-1a-treated (n = 159) patients (31.7 vs 31.4 pg/mL), but decreased with alemtuzumab versus SC IFNB-1a until year 2 (Y2; 13.2 vs 18.7 pg/mL; p < 0.0001); 12.7 pg/mL for alemtuzumab at Y7. Alemtuzumab-treated patients had sNfL at/below healthy control median at Y2 (72% vs 47%; p < 0.0001); 73% for alemtuzumab at Y7. HAD patients (n = 102) had higher baseline sNfL (49.4 pg/mL) versus overall population; alemtuzumab HAD patients attained similar levels (Y2, 12.8 pg/mL; Y7, 12.7 pg/mL; 75% were at/below control median at Y7). CONCLUSION: Alemtuzumab was superior to SC IFNB-1a in reducing sNfL, with levels in alemtuzumab patients remaining stable through Y7. CLINICALTRIALS.GOV IDENTIFIER: NCT00530348, NCT00930553, NCT02255656.


Asunto(s)
Filamentos Intermedios , Esclerosis Múltiple Recurrente-Remitente , Alemtuzumab/efectos adversos , Humanos , Interferón beta-1a/uso terapéutico , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Proteínas de Neurofilamentos
10.
Neurol Neurochir Pol ; 56(3): 256-260, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35766058

RESUMEN

INTRODUCTION: In Poland, access to second-line disease-modifying treatments (DMTs) for relapsing-remitting multiple sclerosis is limited by reimbursement criteria that require evidence of more aggressive disease compared to the approved indications. MATERIAL AND METHODS: In a retrospective study carried out in DMT clinics across Poland, we asked neurologists to provide patient data on relapses and neuroimaging disease activity. Included were only patients with active disease, defined as one or more relapse and at least one new lesion between starting DMT and the last visit. For patients who had not received DMT, active disease was defined as at least one gadolinium-positive lesion or two or more new T2 lesions and two or more relapses within 12 months. We analysed the proportions of patients eligible for second-line DMTs based on the current reimbursement criteria and based on the broader criteria, which were in line with the approved indications. RESULTS: In total, 48 neurologists provided data for 641 patients (women 64%; mean age 38 years). Of the 641 patients, 610 (95%) received DMTs: 532 first-line and 78 second-line. Of the 532 patients on first-line DMTs, 40 (7.5%) were eligible for second-line treatment based on the current reimbursement criteria, and an additional 126 (23.6%) would be eligible for second-line treatment based on the broader criteria. Of the 31 patients who did not receive any DMTs, one patient was eligible for second-line treatment, and another two patients would be eligible for second-line treatment based on the broader criteria. Moreover, 13 previously treated patients would be eligible for second-line DMTs based on the broader criteria. When extrapolated to the whole of Poland, our study shows that an additional 1,581 patients would be eligible for second-line DMTs if the current reimbursement criteria were to be replaced by broader criteria complying with the approved indications. CONCLUSIONS: An urgent change is required in the reimbursement criteria in order to expand access to second-line DMTs for patients with relapsing-remitting MS in Poland.


Asunto(s)
Esclerosis Múltiple Recurrente-Remitente , Esclerosis Múltiple , Adulto , Femenino , Humanos , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Polonia , Recurrencia , Estudios Retrospectivos
11.
Int J Mol Sci ; 22(17)2021 Aug 31.
Artículo en Inglés | MEDLINE | ID: mdl-34502409

RESUMEN

Dysregulations in the differentiation of CD4+-regulatory-T-cells (Tregs) and CD4+-responder-T-cells (Tresps) are involved in the development of active systemic lupus erythematosus (SLE). Three differentiation pathways of highly proliferative inducible costimulatory molecule (ICOS)+- and less proliferative ICOS--CD45RA+CD31+-recent-thymic-emigrant (RTE)-Tregs/Tresps via CD45RA-CD31+-memory-Tregs/Tresps (CD31+-memory-Tregs/Tresps), their direct proliferation via CD45RA+CD31--mature naïve (MN)-Tregs/Tresps, and the production and differentiation of resting MN-Tregs/Tresp into CD45RA-CD31--memory-Tregs/Tresps (CD31--memory-Tregs/Tresps) were examined in 115 healthy controls, 96 SLE remission patients, and 20 active disease patients using six color flow cytometric analysis. In healthy controls an appropriate sequence of these pathways ensured regular age-dependent differentiation. In SLE patients, an age-independently exaggerated differentiation was observed for all Treg/Tresp subsets, where the increased conversion of resting MN-Tregs/Tresps particularly guaranteed the significantly increased ratios of ICOS+-Tregs/ICOS+-Tresps and ICOS--Tregs/ICOS--Tresps during remission. Changes in the differentiation of resting ICOS+-MN-Tresps and ICOS--MN-Tregs from conversion to proliferation caused a significant shift in the ratio of ICOS+-Tregs/ICOS+-Tresps in favor of ICOS+-Tresps and a further increase in the ratio of ICOS--Tregs/ICOS--Tresps with active disease. The differentiation of ICOS+-RTE-Tregs/Tresps seems to be crucial for keeping patients in remission, where their limited production of proliferating resting MN-Tregs may be responsible for the occurrence of active disease flares.


Asunto(s)
Proteína Coestimuladora de Linfocitos T Inducibles/metabolismo , Lupus Eritematoso Sistémico/inmunología , Linfocitos T Reguladores/metabolismo , Adulto , Diferenciación Celular/inmunología , Células Cultivadas , Femenino , Humanos , Memoria Inmunológica , Lupus Eritematoso Sistémico/fisiopatología , Activación de Linfocitos , Masculino , Persona de Mediana Edad , Subgrupos de Linfocitos T/inmunología , Linfocitos T Reguladores/inmunología
12.
J Clin Microbiol ; 57(10)2019 10.
Artículo en Inglés | MEDLINE | ID: mdl-31391228

RESUMEN

Immunological tests, including the QuantiFERON-TB Gold In-Tube (QFT-IT) assay, represent an important aid for diagnosing active tuberculosis (TB) and latent TB infections in children, but concerns about their use in children <5 years of age persist. This is a multicenter retrospective study comparing a population of 226 children to 521 adults with pulmonary or extrapulmonary TB. The aim was to evaluate the QFT-IT performance, analyzing both qualitative and quantitative results, according to age, birthplace, and disease localization. Compared to culture, QFT-IT sensitivity was 93.9%, 100%, and 94.4% in children ≤2, 2 to 5, and 5 to 16 years of age, respectively, and was significantly higher than that in adults (81.0%) (P < 0.0001). The rate of indeterminate test results for children (2.2%) was significantly lower than that for adults (5.2%) (P < 0.0001). In children, QFT-IT sensitivity was not affected by disease localization or birthplace (Italy born versus foreign born). Interferon gamma (IFN-γ) values in response to TB antigen and mitogen were significantly higher in children than in adults (TB antigen, median of 10 versus 1.66 IU IFN-γ/ml; mitogen, median of 10 versus 6.70 IU IFN-γ/ml; P < 0.0001). In summary, this study supports the use of QFT-IT as a complementary test for the diagnosis of pediatric TB even under 2 years of age. Our observations could be applicable to the new version of the test, QuantiFERON-TB Gold Plus, which has recently been shown to have similar sensitivity in active TB, although data in children are still lacking.


Asunto(s)
Ensayos de Liberación de Interferón gamma , Mycobacterium tuberculosis/fisiología , Tuberculosis/diagnóstico , Tuberculosis/metabolismo , Adolescente , Adulto , Niño , Preescolar , Femenino , Humanos , Lactante , Recién Nacido , Ensayos de Liberación de Interferón gamma/métodos , Ensayos de Liberación de Interferón gamma/normas , Tuberculosis Latente/diagnóstico , Masculino , Estudios Retrospectivos , Sensibilidad y Especificidad , Tuberculosis/microbiología , Adulto Joven
13.
Clin Endocrinol (Oxf) ; 91(1): 179-186, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-30864162

RESUMEN

BACKGROUND: Thyroid eye disease (TED) is an autoimmune inflammatory disease that can be disfiguring and potentially sight threatening. Suppression of inflammation in active disease can reduce the risk of visual loss and limit long-term sequelae. Current management involves inflammation suppression using glucocorticoids. The aim of this study was to evaluate the efficacy of early disease intervention with targeted immunomodulatory therapy to alter disease course. This paper reports the efficacy of low-dose rituximab in reducing clinical activity in TED in a small population. METHODS: A retrospective audit of consecutive patients with active TED managed primarily with a 100 mg rituximab infusion. Further glucocorticoid or steroid-sparing agents were prescribed if clinically indicated. Clinical activity score, VISA overall severity score and Oxford Quality of Life score were recorded at each visit as well as TSH receptor antibody levels (TRAb), B cell subsets and adverse reactions. RESULTS: Twelve patients had mean follow-up of 6.3 months. Clinical activity scores significantly decreased (mean score 5.08 to 1.58; P < 0.001), VISA overall severity scores reduced by 50% from 12 to 6, P < 0.001 and the mean cumulative dose of IV methylprednisolone was 2.3 g. 100 mg rituximab induced significant CD19+ B cell depletion (n = 8, P < 0.001). There was no significant reduction in serum TRAb (n = 8, P = 0.06). A transient infusion-related rash was the only adverse effect, n = 4. QoL scores did not differ markedly before and after treatment. CONCLUSION: Low-dose rituximab is an efficacious, well-tolerated and safe treatment for active TED; reducing disease activity and allowing reduced administration of systemic steroid.


Asunto(s)
Oftalmopatías/tratamiento farmacológico , Receptores de Tirotropina/inmunología , Rituximab/uso terapéutico , Enfermedades de la Tiroides/tratamiento farmacológico , Adulto , Anciano , Anticuerpos Monoclonales/sangre , Anticuerpos Monoclonales/inmunología , Antígenos CD19/metabolismo , Linfocitos B/efectos de los fármacos , Linfocitos B/metabolismo , Oftalmopatías/sangre , Femenino , Humanos , Masculino , Metilprednisolona/uso terapéutico , Persona de Mediana Edad , Calidad de Vida , Estudios Retrospectivos , Enfermedades de la Tiroides/sangre , Adulto Joven
14.
J Clin Microbiol ; 56(4)2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-29367297

RESUMEN

Two-tier serology testing is most frequently used for the diagnosis of Lyme borreliosis (LB); however, a positive result is no proof of active disease. To establish a diagnosis of active LB, better diagnostics are needed. Tests investigating the cellular immune system are available, but studies evaluating the utility of these tests on well-defined patient populations are lacking. Therefore, we investigated the utility of an enzyme-linked immunosorbent spot (ELISpot) assay to diagnose active Lyme neuroborreliosis. Peripheral blood mononuclear cells (PBMCs) of various study groups were stimulated by using Borrelia burgdorferi strain B31 and various recombinant antigens, and subsequently, the number of Borrelia-specific interferon gamma (IFN-γ)-secreting T cells was measured. We included 33 active and 37 treated Lyme neuroborreliosis patients, 28 healthy individuals treated for an early manifestation of LB in the past, and 145 untreated healthy individuals. The median numbers of B. burgdorferi B31-specific IFN-γ-secreting T cells/2.5 × 105 PBMCs did not differ between active Lyme neuroborreliosis patients (6.0; interquartile range [IQR], 0.5 to 14.0), treated Lyme neuroborreliosis patients (4.5; IQR, 2.0 to 18.6), and treated healthy individuals (7.4; IQR, 2.3 to 14.9) (P = 1.000); however, the median number of B. burgdorferi B31-specific IFN-γ-secreting T cells/2.5 × 105 PBMCs among untreated healthy individuals was lower (2.0; IQR, 0.5 to 3.9) (P ≤ 0.016). We conclude that the Borrelia ELISpot assay, measuring the number of B. burgdorferi B31-specific IFN-γ-secreting T cells/2.5 × 105 PBMCs, correlates with exposure to the Borrelia bacterium but cannot be used for the diagnosis of active Lyme neuroborreliosis.


Asunto(s)
Ensayo de Immunospot Ligado a Enzimas , Enfermedad de Lyme/diagnóstico , Neuroborreliosis de Lyme/diagnóstico , Linfocitos T/inmunología , Adulto , Anticuerpos Antibacterianos/sangre , Borrelia burgdorferi , Ensayo de Inmunoadsorción Enzimática , Femenino , Humanos , Inmunoglobulina G/sangre , Interferón gamma/inmunología , Masculino , Persona de Mediana Edad , Países Bajos , Estudios Prospectivos , Proteínas Recombinantes/inmunología
15.
Respirology ; 23(5): 455-466, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29457312

RESUMEN

Tuberculosis (TB) remains a devastating disease, yet despite its enormous toll on global health, tools to control TB are insufficient and often outdated. TB Biomarkers (TB-BM) would constitute extremely useful tools to measure infection status and predict outcome of infection, vaccination or therapy. There are several types of TB-BM: Correlate of Infection; Correlate of TB Disease; Correlate of Increased Risk of Developing Active TB Disease; Correlate of the Curative Response to Therapy; and Correlate of Protection (CoP). Most TB-BM currently studied are host-derived BM, and consist of transcriptomic, proteomic, metabolomic, cellular markers or marker combinations ('signatures'). In particular, vaccine-inducible CoP are expected to be transformative in developing new TB vaccines as they will de-risk vaccine research and development (R&D) as well as human testing at an early stage. In addition, CoP could also help minimizing the need for preclinical studies in experimental animals. Of key importance is that TB-BM are tested and validated in different well-characterized human TB cohorts, preferably with complementary profiles and geographically diverse populations: genetic and environmental factors such as (viral) coinfections, exposure to non-tuberculous mycobacteria, nutritional status, metabolic status, age (infants vs children vs adolescents vs adults) and other factors impact host immune set points and host responses across different populations. In this study, we review the most recent advances in research into TB-BM for the diagnosis of active TB, risk of TB development and treatment-induced TB cure.


Asunto(s)
ADN Bacteriano/sangre , Mycobacterium tuberculosis/inmunología , Vacunas contra la Tuberculosis/inmunología , Tuberculosis/diagnóstico , Tuberculosis/tratamiento farmacológico , Anticuerpos Antibacterianos/sangre , Antígenos Bacterianos/sangre , Biomarcadores/sangre , Biomarcadores/orina , ADN Bacteriano/orina , Humanos , Tuberculosis Latente/diagnóstico , Metaboloma , Proteoma , Medición de Riesgo , Transcriptoma , Tuberculosis/prevención & control
16.
Biol Blood Marrow Transplant ; 23(4): 648-653, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28087457

RESUMEN

Outcomes for patients with acute myeloid leukemia (AML) who fail to achieve complete remission remain poor. Hematopoietic cell transplantation (HCT) has been shown to induce long-term survival in AML patients with active disease. HCT is largely performed with HLA-matched unrelated or HLA-matched related donors. Recently, HCT with HLA-haploidentical related donors has been identified as a feasible option when HLA-matched donors are not immediately available. However, there are little data comparing outcomes for AML patients with active disease who receive haploidentical versus traditionally matched HCT. We retrospectively analyzed data from 99 AML patients with active disease undergoing allogeneic HCT at a single institution. Forty-three patients received unrelated donor HCT, 32 patients received matched related donor HCT, and 24 patients received peripheral blood haploidentical HCT with post-transplantation cyclophosphamide. We found no significant differences between treatment groups in terms of overall survival (OS), event-free survival, transplantation-related mortality, cumulative incidence of relapse, and cumulative incidence of acute and chronic graft-versus-host disease (GVHD). We performed univariate regression analysis of variables that modified OS in all patients and found only younger age at transplantation and development of chronic GVHD significantly improved outcome. Although limited by our relatively small sample size, these results indicate that haploidentical HCT in active AML patients have comparable outcomes to HCT with traditionally matched donors. Haploidentical HCT can be considered in this population of high-risk patients when matched donors are unavailable or when wait times for transplantation are unacceptably long.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas/mortalidad , Leucemia Mieloide Aguda/mortalidad , Linfocitos T/citología , Donantes de Tejidos/provisión & distribución , Trasplante Haploidéntico/mortalidad , Adulto , Factores de Edad , Anciano , Ciclofosfamida/uso terapéutico , Femenino , Enfermedad Injerto contra Huésped , Trasplante de Células Madre Hematopoyéticas/métodos , Trasplante de Células Madre Hematopoyéticas/normas , Histocompatibilidad , Humanos , Leucemia Mieloide Aguda/terapia , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo , Análisis de Supervivencia , Trasplante Haploidéntico/métodos , Trasplante Haploidéntico/normas , Resultado del Tratamiento , Adulto Joven
17.
Mult Scler ; 22(6): 817-21, 2016 05.
Artículo en Inglés | MEDLINE | ID: mdl-26286699

RESUMEN

BACKGROUND: Mitoxantrone has been approved for patients with worsening relapsing-remitting (RR) or secondary progressive multiple sclerosis (SPMS), but its long-term use is limited by its cardiotoxicity. Pixantrone (PIX) is an analog of mitoxantrone. OBJECTIVES: The aim of this open-label, multicenter, noncomparative Phase I/II trial was to explore the immunosuppressive effect of PIX, its impact on clinical disease activity and cerebral gadolinium-enhanced (Gd(+)) lesions, and its safety. METHODS: Eighteen patients with active RRMS and SPMS (⩾ 1 cerebral Gd(+) lesion) despite approved immunomodulatory therapy received four intravenous PIX injections every 21 days. A neurological examination, hematology, lymphocyte subsets, and biochemistry were performed at Day 1, Weeks 3, 6 and 9, and Months 3, 6, 9 and 12. Echocardiography was performed before each infusion, at Months 3, 6 and 12. Cerebral MRI was performed at baseline, and at Months 6 and 12. RESULTS: CD19+ cells were reduced by 95% at Month 3 and by 47% at Month 12. Gd+ lesions were reduced by 86% at Month 12 (p = 0.01). The annual relapse rate was reduced by 87% (p < 10(-4)). Two patients experienced a transient reduction in left ventricular fraction. CONCLUSION: These preliminary data indicate the efficacy of PIX in active RRMS and SPMS.


Asunto(s)
Linfocitos B/efectos de los fármacos , Inmunosupresores/farmacología , Isoquinolinas/farmacología , Esclerosis Múltiple Crónica Progresiva/tratamiento farmacológico , Esclerosis Múltiple Recurrente-Remitente/tratamiento farmacológico , Evaluación de Resultado en la Atención de Salud , Inhibidores de Topoisomerasa II/farmacología , Adulto , Femenino , Humanos , Inmunosupresores/administración & dosificación , Isoquinolinas/administración & dosificación , Masculino , Persona de Mediana Edad , Inhibidores de Topoisomerasa II/administración & dosificación
18.
Nephrol Dial Transplant ; 31(12): 2108-2114, 2016 12.
Artículo en Inglés | MEDLINE | ID: mdl-26769682

RESUMEN

BACKGROUND: Primary membranous nephropathy is associated with variable clinical course ranging from spontaneous remission to slow progression to end stage renal failure. Achieving remission confers better renal survival in primary membranous nephropathy (PMN). Longer term outcomes such as patient survival and relapse of active disease remain poorly understood. METHODS: We performed a retrospective study of 128 consecutive adult patients diagnosed with biopsy proven PMN at a single UK centre between 1980 and 2010. These patients were followed prospectively over a median of 128 months. We assessed impact of persistent disease and relapse on Stage 5 chronic kidney disease (CKD-5) and patient survival and present longer term cumulative incidences of different end points. RESULTS: One hundred patients achieved partial remission (PartRem) and 28 patients did not achieve remission (NoRem). Nine per cent of patients achieving first remission developed CKD-5 and 75% of those with NoRem developed CKD-5 [hazard ratio (HR) 0.07, 95% confidence interval 0.03-0.19). Relapse following PartRem occurred in 31 patients (31%) during follow-up and was significantly associated with progression to CKD-5. Progression to CKD-5 was strongly associated with death (47 versus 6%, HR 23.4; P < 0.01). Cumulative incidence at 15 years following first presentation included: death, 14%; CKD-5, 28%; and relapse 40% (in patients who achieved first remission). CONCLUSIONS: Our data strongly suggest that mortality in PMN is seen in patients with disease progression to CKD-5. Achieving remission is strongly associated with improved renal survival after first presentation and following relapse. We suggest that patients who achieve remission should be followed up in longer term, and better strategies to help improve outcomes are needed in clinical practice.


Asunto(s)
Glomerulonefritis Membranosa/patología , Fallo Renal Crónico/patología , Adolescente , Adulto , Progresión de la Enfermedad , Femenino , Tasa de Filtración Glomerular , Glomerulonefritis Membranosa/mortalidad , Glomerulonefritis Membranosa/terapia , Humanos , Estimación de Kaplan-Meier , Fallo Renal Crónico/mortalidad , Fallo Renal Crónico/terapia , Masculino , Persona de Mediana Edad , Modelos de Riesgos Proporcionales , Proteinuria/mortalidad , Proteinuria/patología , Proteinuria/terapia , Recurrencia , Estudios Retrospectivos , Resultado del Tratamiento
19.
Exerc Immunol Rev ; 21: 174-85, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25825870

RESUMEN

The aim of this study was to evaluate changes in the cytokines INF-γ, IL-10, IL-6, TNF-α and soluble TNF receptors (sTNFR1 and sTNFR2) in response to single bouts of acute moderate and intense exercise in systemic lupus erythematosus women with active (SLE(ACTIVE)) and inactive (SLE(INACTIVE)) disease. Twelve SLE(INACTIVE) women (age: 35.3 ± 5.7 yrs; BMI: 25.6±3.4 kg/m2), eleven SLE(ACTIVE) women (age: 30.4 ± 4.5 yrs; BMI: 26.1±4.8 kg/m2), and 10 age- and BMI-matched healthy control women (HC) performed 30 minutes of acute moderate (~50% of VO(2)peak) and intense (~70% of VO(2)peak) exercise bout. Cytokines and soluble TNF receptors were assessed at baseline, immediately after, every 30 minutes up to three hours, and 24 hours after both acute exercise bouts. In response to acute moderate exercise, cytokines and soluble TNF receptors levels remained unchanged in all groups (P>0.05), except for a reduction in IL-6 levels in the SLE(ACTIVE) group at the 60th and 180th minutes of recovery (P<0.05), and a reduction in sTNFR1 levels in the HC group at the 90th, 120th, 150th, 180th minutes of recovery (P<0.05). The SLE(INACTIVE) group showed higher levels of TNF-α, sTNFR1, and sTNFR2 at all time points when compared with the HC group (P<0.05). Also, the SLE(ACTIVE) group showed higher levels of IL-6 at the 60th minute of recovery (P<0.05) when compared with the HC group. After intense exercise, sTNFR1 levels were reduced at the 150th (P=0.041) and 180th (P=0.034) minutes of recovery in the SLE(INACTIVE) group, whereas the other cytokines and sTNFR2 levels remained unchanged (P>0.05). In the HC group, IL-10, TNF-α, sTNFR1, and sTNFR2 levels did not change, whilst INF-γ levels decreased (P=0.05) and IL-6 levels increased immediately after the exercise (P=0.028), returning to baseline levels 24 hours later (P > 0.05). When compared with the HC group, the SLE(INACTIVE) group showed higher levels of TNF-α and sTNFR2 in all time points, and higher levels of sTNFR1 at the end of exercise and at the 30th minute of recovery (P<0.05). The SLE(ACTIVE) group also showed higher levels of TNF-α at all time points when compared with the HC group (P<0.05), (except after 90 min, 120 min and 24 hours of recovery) (P>0.05). Importantly, the levels of all cytokine and soluble TNF receptors returned to baseline 24 hours after the end of acute exercise, irrespective of its intensity, in all three groups (P>0.05). This study demonstrated that both the single bouts of acute moderate and intense exercise induced mild and transient changes in cytokine levels in both SLE(INACTIVE) and SLE(ACTIVE) women, providing novel evidence that acute aerobic exercise does not trigger inflammation in patients with this disease.


Asunto(s)
Citocinas/sangre , Ejercicio Físico/fisiología , Inflamación/etiología , Lupus Eritematoso Sistémico/fisiopatología , Receptores Tipo II del Factor de Necrosis Tumoral/sangre , Receptores Tipo I de Factores de Necrosis Tumoral/sangre , Carrera/fisiología , Adulto , Antirreumáticos/uso terapéutico , Índice de Masa Corporal , Citocinas/metabolismo , Prueba de Esfuerzo , Femenino , Humanos , Inflamación/sangre , Cinética , Lupus Eritematoso Sistémico/sangre , Lupus Eritematoso Sistémico/tratamiento farmacológico , Esfuerzo Físico/fisiología
20.
J Hepatol ; 61(4): 785-91, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24911461

RESUMEN

BACKGROUND & AIMS: Information delineating the possible causes for elevated serum aminotransferase activity among persons with chronic hepatitis B virus (HBV) infection is limited. METHODS: We analysed data collected from a population-based cohort of persons with chronic HBV infection followed from 2001 to 2010 to determine the frequency and causes of elevated aminotransferase activity. Any elevation concurrent with an HBV DNA level ⩾2000 IU/ml was attributed to immune active hepatitis B. Participant medical charts were reviewed by expert clinical staff to determine the presence of additional or alternative attributable causes. For each participant, a serum aminotransferase elevation could be attributed to more than one cause. RESULTS: Among 1090 persons with chronic HBV infection, the mean follow-up was 7.7 years and the median age in 2001 was 39 (range 19-96) years; 634 (58.2%) had ⩾1 elevated aminotransferase level during follow-up and 438 (69.1%) of persons with ⩾1 elevation had at least one cause assigned for the elevation. The most common causes of aminotransferase elevations were immune active hepatitis B (48.4%), alcohol consumption (30.8%), and non-alcoholic fatty liver disease (NAFLD) (24.7%). Among participants with HBV DNA levels persistently less than 2000 IU/ml, the most common causes were NAFLD or alcohol consumption. CONCLUSIONS: In this population-based cohort of persons with chronic HBV infection, the prevalence of elevated aminotransferase activity was high and attributable to immune active chronic hepatitis B in approximately half of the cases; however, NAFLD or alcohol consumption were also common causes for enzyme elevations. These findings underscore the importance of monitoring HBV DNA levels, in addition to aminotransferase activity, among persons with chronic HBV infection so that appropriate interventions, including antiviral therapy, are utilised.


Asunto(s)
Alanina Transaminasa , Hepatitis B Crónica , Adulto , Alanina Transaminasa/análisis , Alanina Transaminasa/sangre , Alaska/epidemiología , Consumo de Bebidas Alcohólicas/sangre , Consumo de Bebidas Alcohólicas/epidemiología , Antivirales/uso terapéutico , Estudios de Cohortes , ADN Viral , Femenino , Virus de la Hepatitis B/genética , Hepatitis B Crónica/sangre , Hepatitis B Crónica/tratamiento farmacológico , Hepatitis B Crónica/epidemiología , Hepatitis B Crónica/fisiopatología , Humanos , Masculino , Persona de Mediana Edad , Enfermedad del Hígado Graso no Alcohólico/sangre , Enfermedad del Hígado Graso no Alcohólico/epidemiología , Gravedad del Paciente , Prevalencia , Sistema de Registros , Factores de Riesgo
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