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1.
Lupus ; 32(13): 1555-1560, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37936393

RESUMEN

OBJECTIVE: To evaluate the association between patients' characteristics and disease activity in an Argentine lupus registry. METHODS: Cross-sectional study. Disease activity was stratified into: Remission off-treatment: SLEDAI = 0, without prednisone and immunosuppressive drugs. Low disease activity Toronto Cohort (LDA-TC): SLEDAI ≤2, without prednisone or immunosuppressive drugs. Modified lupus low disease activity (mLLDAS): SLEDAI score of ≤4, with no activity in major organ systems and no new features, prednisone of ≤10 mg/day and/or immunosuppressive drugs (maintenance dose) and Active disease: SLEDAI score of >4 and prednisone >10 mg/day and immunosuppressive drugs. A descriptive analysis and logistic regression model were performed. RESULTS: A total of 1346 patients were included. Of them, 1.6% achieved remission off steroids, 0.8% LDA-TC, 12.1% mLLDAS and the remaining 85.4% had active disease. Active disease was associated with younger age (p ≤ 0.001), a shorter time to diagnosis (p ≤ 0.001), higher frequency of hospitalizations (p ≤ 0.001), seizures (p = 0.022), serosal disease (p ≤ 0.001), nephritis (p ≤ 0.001), higher SDI (p ≤ 0.001), greater use of immunosuppressive therapies and higher doses of prednisone compared to those on mLLDAS. In the multivariable analysis, the variables associated with active disease were the presence of pleuritis (OR 2.1, 95% CI 1.2-3.9; p = 0.007), persistent proteinuria (OR 2.5, 95% CI 1.2-5.5; p ≤ 0.011), nephritis (OR 2.5, 95% CI 1.2-5.6; p = .018) and hospitalizations (OR 8.9, 95% CI 5.3-16.0; p ≤ 0.001) whereas age at entry into the registry was negatively associated with it (OR 0.9, 95% CI 0.9-1.0; p = 0.029). CONCLUSION: Active disease was associated with shorter time to diagnosis, worse outcomes (SDI and hospitalizations) and renal, neurological and serosal disease.


Asunto(s)
Lupus Eritematoso Sistémico , Nefritis , Humanos , Prednisona/uso terapéutico , Argentina/epidemiología , Estudios Transversales , Lupus Eritematoso Sistémico/diagnóstico , Lupus Eritematoso Sistémico/tratamiento farmacológico , Lupus Eritematoso Sistémico/epidemiología , Inmunosupresores/uso terapéutico , Índice de Severidad de la Enfermedad
2.
J Clin Rheumatol ; 29(5): e59-e70, 2023 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-37005371

RESUMEN

OBJECTIVE: The aim of this study was to provide an evidence-based framework to guide health care professionals treating patients under glucocorticoid (GC) therapy and develop guidelines for the prevention and treatment of glucocorticoid-induced osteoporosis (GIO) in postmenopausal women and men aged ≥50 years. METHODS: An expert panel on bone diseases designed a series of clinically meaningful questions following the PICO (Population, Intervention, Comparator, and Outcome) structure. Using GRADE (Grading of Recommendations Assessment, Development, and Evaluation) methodology, we made a systematic literature review, extracted and summarized the effect estimates, and graded the quality of the evidence. The expert panel voted each PICO question and made recommendations after reaching an agreement of at least 70%. RESULTS: Seventeen recommendations (9 strong and 8 conditional) and 8 general principles were developed for postmenopausal women and men aged ≥50 years under GC treatment. Bone mineral density (BMD), occurrence of fragility fractures, probability of fracture at 10 years by Fracture Risk Assessment Tool, and other screening factors for low BMD are recommended for patient evaluation and stratification according to fragility fracture risk. The treatment of patients under GC therapy should include counseling on lifestyle habits and strict control of comorbidities. The goal of GIO treatment is the nonoccurrence of new fragility fractures as well as to increase or maintain BMD in certain clinical situations. This was considered for the therapeutic approach in different clinical scenarios. CONCLUSIONS: This GIO guideline provides evidence-based guidance for health care providers treating patients.


Asunto(s)
Glucocorticoides , Osteoporosis , Masculino , Humanos , Femenino , Persona de Mediana Edad , Anciano , Glucocorticoides/uso terapéutico , Posmenopausia , Osteoporosis/inducido químicamente , Osteoporosis/diagnóstico , Osteoporosis/tratamiento farmacológico , Densidad Ósea
3.
J Clin Rheumatol ; 29(2): 68-77, 2023 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-36454054

RESUMEN

BACKGROUND/OBJECTIVE: This study describes the impact of immunomodulatory and/or immunosuppressive (IM/IS) drugs in the outcomes of COVID-19 infection in a cohort of patients with immune-mediated inflammatory diseases (IMIDs). METHODS: Adult patients with IMIDs with a confirmed SARS-CoV-2 infection were included. Data were reported by the treating physician between August 13, 2020 and July 31, 2021. Sociodemographic data, comorbidities, and DMARDs, as well as clinical characteristics, complications, and treatment of the SARS-CoV-2 infection, were recorded. Descriptive analysis and multivariable logistic regression models were carried out. RESULTS: A total of 1672 patients with IMIDs were included, of whom 1402 were treated with IM/IS drugs. The most frequent diseases were rheumatoid arthritis (47.7%) and systemic lupus erythematosus (18.4%). COVID-19 symptoms were present in 95.2% of the patients. A total of 461 (27.6%) patients were hospitalized, 8.2% were admitted to the intensive care unit, and 4.4% died due to COVID-19.Patients without IM/IS treatment used glucocorticoids less frequently but at higher doses, had higher levels of disease activity, were significantly older, were more frequently hospitalized, admitted to the intensive care unit, and died due to COVID-19. After adjusting for these factors, treatment with IM/IS drugs was not associated with a worse COVID-19 outcome (World Health Organization-Ordinal Scale ≥5) (odds ratio, 1.24; 95% confidence interval, 0.73-2.06). CONCLUSIONS: SAR-COVID is the first multicenter Argentine registry collecting data from patients with rheumatic diseases and SARS-CoV-2 infection. After adjusting for relevant covariates, treatment with IM/IS drugs was not associated with severe COVID-19 in patients with IMIDs. STUDY REGISTRATION: This study has been registered in ClinicalTrials.gov under the number NCT04568421.


Asunto(s)
Artritis Reumatoide , COVID-19 , Adulto , Humanos , COVID-19/complicaciones , SARS-CoV-2 , Agentes Inmunomoduladores , Artritis Reumatoide/tratamiento farmacológico , Inmunosupresores/uso terapéutico , Sistema de Registros
4.
BMC Genomics ; 23(1): 99, 2022 Feb 04.
Artículo en Inglés | MEDLINE | ID: mdl-35120450

RESUMEN

BACKGROUND: Most dementia disorders have a clear genetic background and a number of disease genes have been identified. Mutations in the tau gene (MAPT) lead to frontotemporal dementia (FTD), whereas mutations in the genes for the amyloid-ß precursor protein (APP) and the presenilins (PSEN1, PSEN2) cause early-onset, dominantly inherited forms of Alzheimer's disease (AD). Even if mutations causing Mendelian forms of these diseases are uncommon, elucidation of the pathogenic effects of such mutations have proven important for understanding the pathogenic processes. Here, we performed a screen to identify novel pathogenic mutations in known disease genes among patients undergoing dementia investigation. RESULTS: Using targeted exome sequencing we have screened all coding exons in eleven known dementia genes (PSEN1, PSEN2, APP, MAPT, APOE, GRN, TARDBP, CHMP2B, TREM2, VCP and FUS) in 102 patients with AD, FTD, other dementia diagnoses or mild cognitive impairment. We found three AD patients with two previously identified pathogenic mutations in PSEN1 (Pro264Leu and Met146Val). In this screen, we also identified the recently reported APP mutation in two siblings with AD. This mutation, named the Uppsala mutation, consists of a six amino acid intra-amyloid ß deletion. In addition, we found several potentially pathogenic mutations in PSEN2, FUS, MAPT, GRN and APOE. Finally, APOE ε4 was prevalent in this patient group with an allele frequency of 54%. CONCLUSIONS: Among the 102 screened patients, we found two disease causing mutations in PSEN1 and one in APP, as well as several potentially pathogenic mutations in other genes related to neurodegenerative disorders. Apart from giving important information to the clinical investigation, the identification of disease mutations can contribute to an increased understanding of disease mechanisms.


Asunto(s)
Enfermedad de Alzheimer , Demencia Frontotemporal , Enfermedad de Alzheimer/genética , Péptidos beta-Amiloides , Demencia Frontotemporal/genética , Humanos , Glicoproteínas de Membrana , Mutación , Presenilina-1/genética , Presenilina-2/genética , Receptores Inmunológicos
5.
Lupus ; 31(5): 637-645, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35382633

RESUMEN

OBJECTIVE: The objective is to describe the main characteristics of patients with systemic lupus erythematosus (SLE) in Argentina and to examine the influence of ethnicity on the expression of the disease. PATIENTS AND METHODS: RELESSAR is a multicentre register carried out by 106 researchers from 67 rheumatologic Argentine centres. It is a cross-sectional study of SLE (1982/1997 ACR) patients. RELESSAR electronic database includes demographic, cumulative SLE manifestations, SELENA-SLEDAI, SLICC-SDI, Katz's severity and Charlson's comorbidity indexes and treatment patterns. RESULTS: We included 1,610 patients, 91.7% were female with a median age at diagnosis of 28.1 ± 12.8; 96.2% met ≥4 ACR 1982/97 criteria. Frequent manifestations were arthritis (83.5%), malar rash (79.5%), photosensitivity (75.3%), haematological (63.8%) and renal disease (47.4%), antinuclear antibodies (96%), anti-dsDNA (66.5%) and anti-Smith antibodies (29%). The mean Selena-SLEDAI score at last visit was 3.18 (SD 4.3) and mean SDI was 1 (SD 1.3). The accumulated treatments most frequently used were antimalarials (90.4%), corticosteroids (90%), azathioprine (31.8%), intravenous cyclophosphamide (30.2%), mycophenolate mofetil or mycophenolic acid (24.5%), methotrexate (19.3%), belimumab 5.3% and rituximab 5.1%. Refractory lupus was diagnosed in 9.3% of the cases. The main causes of death were lupus activity (25.0%), activity and concomitant infections (25.0%), infections (18.2%), vascular disease (13.6%) and cancer (4.5%). Mortality was associated with higher SLEDAI, Katz, damage indexes and comorbidities. Of the 1610 patients included, 44.6% were Caucasian, 44.5% Mestizo, 8.1% Amerindian and 1.2% Afro-Latin American. Mestizo patients had higher male representation, low socioeconomic status, more inadequate medical coverage, fewer formal years of education and shorter disease duration. Polyadenopathies and Raynaud's phenomenon were more frequent in Caucasians. In the logistic regression analysis higher damage index (OR 1.28, CI 95% 1.02-1.61, p = 0.03) remained associated to mestizo ethnicity. CONCLUSIONS: This study represents the largest number of adult patients with SLE studied in Argentina. Caucasian patients were differentiated by having Raynaud's phenomenon and polyadenopathy more frequently, while patients of Mestizo origin had higher damage indexes.


Asunto(s)
Etnicidad , Lupus Eritematoso Sistémico , Argentina/epidemiología , Estudios Transversales , Femenino , Humanos , Lupus Eritematoso Sistémico/complicaciones , Masculino , Fenotipo , Índice de Severidad de la Enfermedad
6.
BMC Gastroenterol ; 20(1): 282, 2020 Aug 24.
Artículo en Inglés | MEDLINE | ID: mdl-32838747

RESUMEN

BACKGROUND: Inflammatory pseudotumour has been used to describe an inflammatory or fibrosing tumoral process of an undetermined cause that may involve a variety of organ systems, including the lungs, spleen, liver, lymph nodes, pancreas and extrahepatic bile duct with potential for recurrence and persistent local growth. In this article, we report a patient with a big mass of uncertain nature and behavior. CASE PRESENTATION: A 60-year-old woman presented with a 1-week history of abdominal pain, fever and jaundice. Six months before she had had right upper quadrant pain that was interpreted as biliary colic. A contrast-enhanced CT scan showed a big mass of soft tissue with diffuse infiltration of the gallbladder, displacement of the transverse colon, hepatic flexure and duodenum. For diagnostic distinction between a chronic inflammatory disease or a neoplasm, exploratory laparotomy was required. Intraoperative exploration disclosed a big mass of hard texture involving the gallbladder, with multiple concrements, hepatoduodenal ligament, right and transverse mesocolon, stomach and duodenum. Cholecystectomy was performed, preserving adjacent organs with macroscopic desmoplastic reaction. Histopathologic examination of the gallbladder showed a spindle cell proliferation with diffuse chronic inflammatory infiltrate of lymphocytes, plasma cells and hyalinized fibrous stroma. No vascular invasion or cellular atypia were evident. CONCLUSION: Inflammatory pseudotumour is a rare condition and diagnostic distinction from a chronic inflammatory disease or other neoplasm is only possible by histopathologic examination. There is a limited number of case reports in the literature indicating tumor location in the gallbladder.


Asunto(s)
Neoplasias de la Vesícula Biliar , Granuloma de Células Plasmáticas , Colecistectomía , Femenino , Neoplasias de la Vesícula Biliar/diagnóstico , Neoplasias de la Vesícula Biliar/cirugía , Granuloma de Células Plasmáticas/diagnóstico por imagen , Granuloma de Células Plasmáticas/cirugía , Humanos , Persona de Mediana Edad , Recurrencia Local de Neoplasia
7.
Health Qual Life Outcomes ; 16(1): 211, 2018 Nov 09.
Artículo en Inglés | MEDLINE | ID: mdl-30413162

RESUMEN

BACKGROUND: In order to better understand the perspectives of patients and physicians regarding the treatment and management of rheumatoid arthritis (RA), we present and compare results from a patient-based and a physician-based survey developed by the RA NarRAtive advisory panel. METHODS: The RA NarRAtive initiative is directed by a global advisory panel of 39 healthcare providers and patient organization leaders from 17 countries. A survey of patients self-reporting a diagnosis of RA and a physician-based survey, designed by the advisory panel, were fielded online by Harris Poll from September 2014 to April 2016, and from August 2015 to October 2015, respectively. RESULTS: We present findings from 1805 patients whose RA was primarily managed by a rheumatologist, and 1736 physicians managing patients with RA. Results confirmed that RA carries a substantial disease burden; half of the patients surveyed reported stopping participation in certain activities as a result of their disease. While 90% of physicians were satisfied with their communications with their patients regarding RA treatment, 61% of patients felt uncomfortable raising concerns or fears with their physician. Of the patients providing responses, 52% felt that improved dialogue/discussion would optimize their RA management, and 68% of physicians wished that they and their patients talked more about their RA goals and treatment. Overall, 88% of physicians agreed that patients involved in making treatment decisions tend to be more satisfied with their treatment experience. CONCLUSION: The results of these surveys highlight the impact of RA on patients, and a discrepancy between patient and physician views on communication. Further research, focused on improving patient-physician dialogue, shared goal-setting, and treatment planning, is needed.


Asunto(s)
Artritis Reumatoide/terapia , Satisfacción del Paciente , Relaciones Médico-Paciente , Médicos/psicología , Anciano , Toma de Decisiones , Femenino , Salud Global , Encuestas Epidemiológicas , Humanos , Masculino , Persona de Mediana Edad , Calidad de Vida , Reumatología/métodos
8.
J Heart Valve Dis ; 25(5): 634-637, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-28238247

RESUMEN

A 68-year-old woman with a history of previous double-valve replacement with On-X mechanical heart valves presented with clinical, echocardiographic and cardiac catheterization signs of obstruction of the On-X tricuspid heart valve prosthesis. The patient was successfully reoperated, but at surgery the valve was seen to be invaded by an abnormal overgrowth of pannus that blocked one of the leaflets. A small amount of non-obstructive fresh thrombus was also observed. The valve was successfully replaced with a biological heart valve prosthesis. The patient was discharged home, and is doing well four months after the operation, when echocardiography demonstrated normal function in the tricuspid valve. The present case represents the first ever report of pannus formation and subsequent dysfunction in an On-X heart valve, and also the first case of tricuspid valve malfunction and obstruction using this type of heart valve substitute.


Asunto(s)
Enfermedades de las Válvulas Cardíacas/cirugía , Prótesis Valvulares Cardíacas , Válvula Mitral/cirugía , Complicaciones Posoperatorias/diagnóstico , Falla de Prótesis , Trombosis/diagnóstico , Válvula Tricúspide/cirugía , Anciano , Bioprótesis , Femenino , Implantación de Prótesis de Válvulas Cardíacas , Humanos , Complicaciones Posoperatorias/cirugía , Reoperación , Trombosis/cirugía
9.
Reumatol Clin (Engl Ed) ; 20(2): 92-95, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38290954

RESUMEN

OBJECTIVES: To evaluate the trajectory of students enrolled in the specialty training in rheumatology. METHODS: Retrospective analysis (2009-2016). Promotion, repetition, and dropout rates were determined. Analysis was performed to define variables associated with academic success. RESULTS: Out of 119 students, the actual promotion rate was 66.4%, 11.8% failed an exam (at least) and completed the course after the stipulated time, and the dropout rate was 7.6%. Among residents, the promotion rate was 82.5% vs. 48.2% among the rest (p < 0.001), the lagging students' repetition rate was 3.2% vs. 21.4% among the rest (p 0.005), and the dropout rate was 3.2% vs. 12.5% among the rest (p = 0.06). A higher average score in medical school increased the chances of success in the postgraduate programme (OR 3.41 CI 95% 2.0-6.4; p < 0.001). CONCLUSIONS: The residency was associated with higher rates of academic success in postgraduate studies. The average score in medical school can help identify students at risk of failure.


Asunto(s)
Internado y Residencia , Reumatología , Estudiantes de Medicina , Humanos , Estudios Retrospectivos , Reumatología/educación
10.
Acta Neuropathol Commun ; 12(1): 22, 2024 Feb 05.
Artículo en Inglés | MEDLINE | ID: mdl-38317196

RESUMEN

Deposition of amyloid beta (Aß) into plaques is a major hallmark of Alzheimer's disease (AD). Different amyloid precursor protein (APP) mutations cause early-onset AD by altering the production or aggregation properties of Aß. We recently identified the Uppsala APP mutation (APPUpp), which causes Aß pathology by a triple mechanism: increased ß-secretase and altered α-secretase APP cleavage, leading to increased formation of a unique Aß conformer that rapidly aggregates and deposits in the brain. The aim of this study was to further explore the effects of APPUpp in a transgenic mouse model (tg-UppSwe), expressing human APP with the APPUpp mutation together with the APPSwe mutation. Aß pathology was studied in tg-UppSwe brains at different ages, using ELISA and immunohistochemistry. In vivo PET imaging with three different PET radioligands was conducted in aged tg-UppSwe mice and two other mouse models; tg-ArcSwe and tg-Swe. Finally, glial responses to Aß pathology were studied in cell culture models and mouse brain tissue, using ELISA and immunohistochemistry. Tg-UppSwe mice displayed increased ß-secretase cleavage and suppressed α-secretase cleavage, resulting in AßUpp42 dominated diffuse plaque pathology appearing from the age of 5-6 months. The γ-secretase cleavage was not affected. Contrary to tg-ArcSwe and tg-Swe mice, tg-UppSwe mice were [11C]PiB-PET negative. Antibody-based PET with the 3D6 ligand visualized Aß pathology in all models, whereas the Aß protofibril selective mAb158 ligand did not give any signals in tg-UppSwe mice. Moreover, unlike the other two models, tg-UppSwe mice displayed a very faint glial response to the Aß pathology. The tg-UppSwe mouse model thus recapitulates several pathological features of the Uppsala APP mutation carriers. The presumed unique structural features of AßUpp42 aggregates were found to affect their interaction with anti-Aß antibodies and profoundly modify the Aß-mediated glial response, which may be important aspects to consider for further development of AD therapies.


Asunto(s)
Enfermedad de Alzheimer , Péptidos beta-Amiloides , Animales , Humanos , Ratones , Enfermedad de Alzheimer/patología , Péptidos beta-Amiloides/metabolismo , Precursor de Proteína beta-Amiloide/genética , Precursor de Proteína beta-Amiloide/metabolismo , Secretasas de la Proteína Precursora del Amiloide/metabolismo , Encéfalo/patología , Modelos Animales de Enfermedad , Gliosis/patología , Ligandos , Ratones Transgénicos
11.
Arthritis Care Res (Hoboken) ; 76(1): 120-130, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37605835

RESUMEN

OBJECTIVE: The objective of this study was to assess the SARS-CoV-2-specific humoral and T cell response after a two-dose regimen of SARS-CoV-2 vaccine in patients with rheumatoid arthritis (RA). METHODS: In this observational study, patients with RA who are ≥18 years of age and vaccinated for SARS-CoV-2 according to the Argentine National Health Ministry's vaccination strategy were included. Anti-SARS-CoV-2 immunoglobulin G (IgG) antibodies (ELISA-COVIDAR test), neutralizing activity (cytotoxicity in VERO cells), and specific T cell response (IFN-γ ELISpot Assay) were assessed after the first and second dose. RESULTS: A total of 120 patients with RA were included. Mostly, homologous regimens were used, including Gam-COVID-Vac (27.5%), ChAdOx1 (24.2%), and BBIBP-CorV (22.5%). The most frequent combination was Gam-COVID-Vac/mRNA-1273 (21.7%). After the second dose, 81.7% presented with anti-SARS-CoV-2 antibodies, 70.0% presented with neutralizing activity, and 65.3% presented with specific T cell response. The use of BBIBP-CorV and treatment with abatacept (ABA) and rituximab (RTX) were associated with undetectable antibodies and no neutralizing activity after two doses. BBIBP-CorV was also associated with the absence of T cell response. The total incidence of adverse events was 357.1 events per 1,000 doses, significantly lower with BBIBP-CorV (166.7 events per 1,000 doses, P < 0.02). CONCLUSION: In this RA cohort vaccinated with homologous and heterologous regimens against COVID-19, 2 out of 10 patients did not develop anti-SARS-CoV-2 IgG, 70% presented with neutralizing activity, and 65% presented with specific T cell response. The use of BBIBP-CorV was associated with deficient humoral and cellular response, whereas treatment with ABA and RTX resulted in an impaired anti-SARS-CoV-2 IgG formation and neutralizing activity.


Asunto(s)
Artritis Reumatoide , COVID-19 , Chlorocebus aethiops , Animales , Humanos , Vacunas contra la COVID-19 , SARS-CoV-2 , Células Vero , COVID-19/prevención & control , Linfocitos T , Artritis Reumatoide/tratamiento farmacológico , Abatacept , Rituximab , Vacunación , Anticuerpos Antivirales , Inmunoglobulina G
12.
Rheumatol Int ; 33(4): 827-35, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23263547

RESUMEN

Rheumatoid arthritis is a systemic inflammatory disorder characterized by joint articular pain and disability. Although there is scarcity of data available on the incidence and prevalence of RA in Latin America, there is a growing recognition of this disease where chronic diseases are on the rise and infectious disease on the decline. RA is a substantial burden to patients, society, and the healthcare system. The heterogeneity identified within RA presents an opportunity for personalized medicine, especially in regions with such demographic diversity as that of Latin America. To understand the long-term effects of treatment for RA especially on safety, registries have been established, a number of which have been created in Latin America. Despite their weaknesses (e.g., lack of controls and randomization), registries have provided additional and complementary information on the use of biologics in clinical practice in Latin America and other regions. Although certain challenges remain in the implementation and maintenance of registries, they continue to provide real-life data to clinical practice contributing to improved patient care.


Asunto(s)
Antirreumáticos/uso terapéutico , Artritis Reumatoide/tratamiento farmacológico , Productos Biológicos/uso terapéutico , Artritis Reumatoide/epidemiología , Humanos , América Latina/epidemiología , Prevalencia , Sistema de Registros
13.
Reumatol Clin (Engl Ed) ; 19(5): 279-284, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-37147063

RESUMEN

INTRODUCTION AND AIM: T-score bone mineral density (BMD) thresholds may influence guidance for treatment in patients under glucocorticoid (GC) therapy. Different BMD thresholds have been described but there is no international consensus. The aim of this study was to find a threshold to help in treatment decision-making in the population under GC therapy. METHODS: A working group representing three scientific societies from Argentina was convened. The first team was formed by specialists with expertise in glucocorticoid-induced osteoporosis (GIO) who voted according to summary of evidence. The second team was constituted by a methodology group who coordinated and supervised each stage. We conducted two systematic reviews to synthesize the evidence. The first included trials of drugs used in GIO to analyze the BMD cut-off used as inclusion criteria. In the second, we analyzed the evidence regarding the densitometric thresholds to discriminate between fractured and non-fractured patients under GC treatment. RESULTS: In the first review, 31 articles were included for qualitative synthesis and more than 90% of the trials included patients regardless of their densitometric T-score or range of osteopenia. In the second review, 4 articles were included and more than 80% of the T-scores were in the range -1.6 to -2.0. The summary of findings was analyzed and put to a vote. CONCLUSIONS: With more than 80% agreement of the voting expert panel, a T-score≤-1.7 was considered the most appropriate for treatment in postmenopausal women and men over 50 years of age under GC therapy. This study could help in treatment decision-making in patients under GC therapy without fractures but other fracture risk factors should certainly be considered.


Asunto(s)
Conservadores de la Densidad Ósea , Osteoporosis , Masculino , Humanos , Femenino , Persona de Mediana Edad , Densidad Ósea , Glucocorticoides/efectos adversos , Posmenopausia , Osteoporosis/inducido químicamente , Osteoporosis/tratamiento farmacológico , Conservadores de la Densidad Ósea/efectos adversos
14.
Sci Adv ; 9(15): eade7997, 2023 04 14.
Artículo en Inglés | MEDLINE | ID: mdl-37058556

RESUMEN

Recent studies have described a DNA damage tolerance pathway choice that involves a competition between PrimPol-mediated repriming and fork reversal. Screening different translesion DNA synthesis (TLS) polymerases by the use of tools for their depletion, we identified a unique role of Pol ι in regulating such a pathway choice. Pol ι deficiency unleashes PrimPol-dependent repriming, which accelerates DNA replication in a pathway that is epistatic with ZRANB3 knockdown. In Pol ι-depleted cells, the excess participation of PrimPol in nascent DNA elongation reduces replication stress signals, but thereby also checkpoint activation in S phase, triggering chromosome instability in M phase. This TLS-independent function of Pol ι requires its PCNA-interacting but not its polymerase domain. Our findings unravel an unanticipated role of Pol ι in protecting the genome stability of cells from detrimental changes in DNA replication dynamics caused by PrimPol.


Asunto(s)
Replicación del ADN , ADN Polimerasa Dirigida por ADN , Humanos , ADN Polimerasa Dirigida por ADN/genética , ADN Polimerasa Dirigida por ADN/metabolismo , ADN/genética , ADN/metabolismo , Reparación del ADN , Daño del ADN , Inestabilidad Cromosómica , ADN Primasa/genética , ADN Primasa/metabolismo , Enzimas Multifuncionales/genética , Enzimas Multifuncionales/metabolismo
15.
Sex Dev ; 17(1): 1-7, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36626890

RESUMEN

BACKGROUND: Persistent müllerian duct syndrome (PMDS) is characterized by the persistence of müllerian duct derivatives in otherwise normally virilized 46,XY males. Biallelic mutations of the anti-müllerian hormone (AMH) and AMH receptor type 2 (AMHR2) genes lead to PMDS type 1 and 2, respectively. AIM: The aims of the study were to report the clinical, hormonal, and genetic findings in a patient with PMDS and discuss surgical strategies to achieve successful orchidopexy. RESULTS: A 4-year-old boy was evaluated after the incidental finding of müllerian derivates during laparoscopy for nonpalpable gonads. Karyotype was 46,XY and laboratory tests revealed normal serum gonadotropin and androgen levels but undetectable serum AMH levels. PMDS was suspected. Molecular analysis revealed a novel variant c.902_929del in exon 5 and a previously reported mutation (c.367C>T) in exon 1 of the AMH gene. Successful orchidopexy was performed in two sequential surgeries in which the müllerian duct structure was preserved and divided to protect the vascular supply to the gonads. Histological evaluation of the testicular biopsy showed mild signs of dysgenesis. Doppler ultrasound showed blood flow in both testes positioned in the scrotum 1.5 years after surgery. CONCLUSION: PMDS is a rare entity that requires a high index of suspicion (from surgeons) when evaluating a patient with bilateral cryptorchidism. Surgical treatment is challenging and long-term follow-up is essential. Histological evaluation of the testis deserves further investigation.


Asunto(s)
Trastorno del Desarrollo Sexual 46,XY , Laparoscopía , Masculino , Humanos , Preescolar , Hormona Antimülleriana/genética , Trastorno del Desarrollo Sexual 46,XY/genética , Trastorno del Desarrollo Sexual 46,XY/cirugía , Trastorno del Desarrollo Sexual 46,XY/diagnóstico , Mutación/genética
16.
Clin Rheumatol ; 41(10): 3199-3209, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-35760939

RESUMEN

BACKGROUND/OBJECTIVE: To evaluate the efficacy and safety of SARS-CoV-2 vaccine in patients with rheumatic and immune-mediated inflammatory diseases (IMIDs) in Argentina: the SAR-CoVAC registry. METHODS: SAR-CoVAC is a national, multicenter, and observational registry. Adult patients with rheumatic or IMIDs vaccinated for SARS-CoV-2 were consecutively included between June 1 and September 17, 2021. Sociodemographic data, comorbidities, underlying rheumatic or IMIDs, treatments received, their modification prior to vaccination, and history of SARS-CoV-2 infection were recorded. In addition, date and place of vaccination, type of vaccine applied, scheme, adverse events (AE), disease flares, and new immune-mediated manifestations related to the vaccine were analyzed. RESULTS: A total of 1234 patients were included, 79% were female, with a mean age of 57.8 (SD 14.1) years. The most frequent diseases were rheumatoid arthritis (41.2%), osteoarthritis (14.5%), psoriasis (12.7%), and spondyloarthritis (12.3%). Most of them were in remission (28.5%) or low disease activity (41.4%). At the time of vaccination, 21% were receiving glucocorticoid treatment, 35.7% methotrexate, 29.7% biological (b) disease modifying anti-rheumatic drugs (DMARD), and 5.4% JAK inhibitors. In total, 16.9% had SARS-CoV-2 infection before the first vaccine dose. Most patients (51.1%) received Gam-COVID-Vac as the first vaccine dose, followed by ChAdOx1 nCoV-19 (32.8%) and BBIBP-CorV (14.5%). Half of them (48.8%) were fully vaccinated with 2 doses; 12.5% received combined schemes, being the most frequent Gam-COVID-Vac/mRAN-1273. The median time between doses was 51 days (IQR 53). After the first dose, 25.9% of the patients reported at least one AE and 15.9% after the second, being flu-like syndrome and local hypersensitivity the most frequent manifestations. There was one case of anaphylaxis. Regarding efficacy, 63 events of SARS-CoV-2 infection were reported after vaccination, 19% occurred during the first 14 days post-vaccination, 57.1% after the first dose, and 23.8% after the second. Most cases (85.9%) were asymptomatic or mild and 2 died due to COVID-19. CONCLUSIONS: In this national cohort of patients, the most common vaccines used were Gam-COVID-Vac and ChAdOx1 nCoV-19. A quarter of the patients presented an AE and 5.1% presented SARS-CoV-2 infection after vaccination, in most cases mild. STUDY REGISTRATION: This study has been registered in ClinicalTrials.gov under the number: NCT04845997. Key Points • This study shows real-world data about efficacy and safety of SARS-CoV-2 vaccination in patients with rheumatic and immune-mediated inflammatory diseases. Interestingly, different types of vaccines were used including vector-based, mRNA, and inactivated vaccines, and mixed regimens were enabled. • A quarter of the patients presented an adverse event. The incidence of adverse events was significantly higher in those receiving mRAN-1273 and ChAdOx1 nCoV-19. • In this cohort, 5.1% presented SARS-CoV-2 infection after vaccination, in most cases mild.


Asunto(s)
Vacunas contra la COVID-19 , COVID-19 , Adulto , Anciano , Antirreumáticos/uso terapéutico , Argentina/epidemiología , COVID-19/prevención & control , Vacunas contra la COVID-19/efectos adversos , ChAdOx1 nCoV-19 , Femenino , Glucocorticoides , Humanos , Inhibidores de las Cinasas Janus , Masculino , Metotrexato , Persona de Mediana Edad , Datos Preliminares , ARN Mensajero , Sistema de Registros , SARS-CoV-2 , Vacunación , Vacunas de Productos Inactivados
17.
J Rheumatol ; 49(12): 1385-1389, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-36182107

RESUMEN

OBJECTIVE: The aim of this study was to assess the immune response after a third dose of SARS-CoV-2 vaccine in patients with rheumatoid arthritis (RA) with undetectable antibody titers after the primary regimen of 2 doses. METHODS: Patients with RA with no seroconversion after 2 doses of SARS-CoV-2 vaccine and who received a third dose of either an mRNA or vector-based vaccine were included. Anti-SARS-CoV-2 IgG antibodies, neutralizing activity, and T cell responses were assessed after the third dose. RESULTS: A total of 21 nonresponder patients were included. At the time of vaccination, 29% were receiving glucocorticoids and 85% biologic disease-modifying antirheumatic drugs (including 6 taking abatacept [ABA] and 4 taking rituximab [RTX]). The majority (95%) received the BNT162b2 vaccine and only one of them received the ChAdOx1 nCoV-19 vaccine. After the third dose, 91% of the patients presented detectable anti-SARS-CoV-2 IgG and 76% showed neutralizing activity. Compared to other treatments, ABA and RTX were associated with the absence of neutralizing activity in 4 out of 5 (80%) patients and lower titers of neutralizing antibodies (median 3, IQR 0-20 vs 8, IQR 4-128; P = 0.20). Specific T cell response was detected in 41% of all patients after the second dose, increasing to 71% after the third dose. The use of ABA was associated with a lower frequency of T cell response (33% vs 87%, P = 0.03). CONCLUSION: In this RA cohort, 91% of patients who failed to seroconvert after 2 doses of SARS-CoV-2 vaccine presented detectable anti-SARS-CoV-2 IgG after a third dose. The use of ABA was associated with a lower frequency of specific T cell response.


Asunto(s)
Artritis Reumatoide , COVID-19 , Vacunas , Humanos , Vacunas contra la COVID-19 , ChAdOx1 nCoV-19 , Vacuna BNT162 , COVID-19/prevención & control , SARS-CoV-2 , Artritis Reumatoide/tratamiento farmacológico , Abatacept , Inmunoglobulina G , Vacunación , Rituximab , Anticuerpos Antivirales , Inmunidad
18.
Adv Rheumatol ; 61(1): 56, 2021 09 08.
Artículo en Inglés | MEDLINE | ID: mdl-34496979

RESUMEN

BACKGROUND: Determining potential predictors of clinical response would allow a more personalized rheumatoid arthritis (RA) treatment approach in heterogeneous populations such as Latin American (LA) patients. METHODS: Post hoc analysis to identify baseline characteristics predictive of clinical remission in response to treatment with etanercept (ETN) plus methotrexate (MTX) in LA patients with moderate to severe MTX-resistant RA. We report data from the group of patients who received ETN 50 mg/week plus MTX (ETN + MTX, n = 281) in a clinical trial consisting of an initial 24-week open-label phase, followed by a 104-week extension. Remission was defined as 28-joint Disease Activity Score with erythrocyte sedimentation rate (DAS28-ESR) score < 2.6. Cutoff values to dichotomize baseline variables maximizing the detection of remission were obtained from Receiver Operator Curve analyses. Baseline dichotomized and categorical variables were analyzed altogether in a stepwise logistic regression model. Odds of attaining response at Weeks 24 and 128 were estimated for each significant predictor. RESULTS: At Week 24 and Week 128, 27% (66/241) and 42% (91/219) of patients in the ETN + MTX group achieved remission. On average, patients achieving remission were younger and had lower baseline ESR, lower Physician Global Assessment (PGA) scores, lower total Health Assessment Questionnaire (HAQ) scores, and lower visual analog scale (VAS) Pain scores compared with patients who did not achieve remission. The best subset of baseline variables predicting Week 24 remission in the stepwise regression model were age ≤ 49 years (odds ratio [OR] 2.93), body mass index (BMI) > 28.5 kg/m2 (OR 3.24), disease duration > 3.7 years (OR 2.22), ESR ≤ 42 mm/h (OR 2.72), PGA ≤ 6 (OR 3.21), tender joint count ≤ 14 (OR 2.25), and total HAQ score ≤ 1.6 (OR 2.86). At Week 128, age ≤ 42 years (OR 2.21), SF-36 Mental Health Scale score > 39.6 (OR 2.16), White race (OR 4.07), > 18 swollen joints (OR 2.11), and VAS Pain ≤ 41 (OR 6.05) at baseline were the best subset of significant predictors of remission. CONCLUSIONS: In LA patients with RA, younger age, higher BMI, longer disease duration, higher SF-36 Mental Health Scale score, higher swollen joint count, and overall lower disease activity predicted clinical response to ETN + MTX therapy. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT00848354.


Asunto(s)
Antirreumáticos , Artritis Reumatoide , Etanercept , Metotrexato , Adulto , Antirreumáticos/uso terapéutico , Artritis Reumatoide/tratamiento farmacológico , Quimioterapia Combinada , Etanercept/uso terapéutico , Humanos , América Latina , Modelos Logísticos , Metotrexato/uso terapéutico , Persona de Mediana Edad , Resultado del Tratamiento
19.
Adv Rheumatol ; 61(1): 52, 2021 08 24.
Artículo en Inglés | MEDLINE | ID: mdl-34429162

RESUMEN

BACKGROUND: Clinically evident interstitial lung disease (ILD) affects between 10 and 42% of the patients with rheumatoid arthritis (RA). Airway involvement seems to be even more common. Most of the available evidence comes from studies performed in established RA patients. The aim of our study was to know the prevalence of non-diagnosed lung disease (airway and interstitial involvement) in patients with early RA and look for associated factors. METHODS: We designed an observational, multicenter, cross-sectional study, and included patients with RA of less than two years since diagnosis. We performed a structured questionnaire, HRCT and lung functional tests looking for lung disease, together with joint disease evaluation. We analyzed which variables were associated with the presence of lung disease on HRCT. RESULTS: We included 83 patients, 83% females. The median (IQR) of time since RA diagnosis was 3 (1-6) months. In the HRCT, 57 patients had airway compromisea (72%), and 6 had interstitial abnormalities (7.5%). The most common altertion found in lung functional tests was a reduced DLCO (14%). The presence of at least one abnormality in the physical exam was associated with lung involvement on HRCT [13 (21.6%) vs 0 (0%); p = 0.026]. Also, patients with lung involvement presented significantly lower values of FVC% and DLCO%, and higher values of RV/TLC. No variable related to joint involvement was found associated with alterations in HRCT. CONCLUSION: Our study shows that a large proportion of early RA patients has abnormal findings in HRCT. Further studies are required to confirm these findings.


Asunto(s)
Artritis Reumatoide , Enfermedades Pulmonares Intersticiales , Artritis Reumatoide/epidemiología , Estudios Transversales , Femenino , Humanos , Enfermedades Pulmonares Intersticiales/epidemiología , Masculino , Prevalencia
20.
Patient Prefer Adherence ; 15: 359-373, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33633444

RESUMEN

BACKGROUND: Patients' needs and perspectives are important determinants of treatment success in rheumatoid arthritis (RA). Assessing patients' perspectives can help identify unmet needs and enhance the understanding of treatment benefits. OBJECTIVE: The SENSE study assessed the impact of inadequate response to disease-modifying antirheumatic drugs (DMARDs) on treatment satisfaction, disease outcomes, and patient perspectives related to RA disease management. METHODS: SENSE was a noninterventional, cross-sectional study conducted in 18 countries across Europe, Asia, and South America. Adult patients with poorly controlled RA of moderate/high disease activity were eligible. Patient satisfaction was assessed by the Treatment Satisfaction Questionnaire for Medication (TSQM v1.4). Treatment adherence, healthcare resource utilization (HRU), quality of life (QoL), work ability, digital health literacy (DHL), patient preference information, and treatment strategy were also assessed. RESULTS: A total of 1624 patients were included in the study: most were female (84.2%) and middle-aged, and mean disease duration was 10.5 years. Mean TSQM global satisfaction subscore was 60.9, with only 13.5% of patients reporting good treatment satisfaction (TSQM global ≥80). The strongest predictor of good treatment satisfaction was treatment with advanced therapies. Most patients (87.4%) reported good treatment adherence. In general, patients had impaired QoL and work ability, high HRU, and 67.4% had poor DHL. Leading treatment expectations were "general improvement of arthritis" and "less joint pain". Most patients preferred oral RA medications (60.7%) and rapid (≤1 week) onset of action (71.1%). "Increased risk for malignancies" and "increased risk for cardiovascular disease" were the least acceptable side effects. Despite suboptimal control, advanced therapies were only used in a minority of patients, and DMARD switches were planned for only half of the patients. CONCLUSION: Suboptimal disease control negatively impacts treatment satisfaction, work ability, QoL, and HRU. Data collected on patient perspectives may inform shared decision-making and optimize treat-to-target strategies for improving patient outcomes in RA.

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