Publications by authors named "Maria Ricart"

Introduction: Sepsis is a syndrome of physiological, pathological, and biochemical disorders with several processes co-occurring; reactive oxygen species (ROS) production and apoptosis are 2 of them. Succinate is a Krebs cycle intermediate that is oxydized in complex II of the mitochondria. This study aims to investigate the influence of succinate infusion on these processes.

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Profiling of circulating immune cells provides valuable insight to the pathophysiology of acute rejection in organ transplantation. Herein we characterized the peripheral blood mononuclear cells in simultaneous kidney-pancreas transplant recipients. We conducted a retrospective analysis in a biopsy-matched cohort ( = 67) and compared patients with biopsy proven acute rejection (BPAR; 41%) to those without rejection (No-AR).

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Background: Benign esophageal strictures arise from various etiologies, mostly severe esophagitis. Although endoscopic balloon dilation is still the first-line therapy, refractory or recurrent strictures do occur and remain a challenge to the endoluminal treatment. The aim of this report was to communicate a recurrent esophageal stricture resolution in a cat treated with balloon dilatation and steroid injections in Ciudad de Buenos Aires, Argentina.

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Due to the high vulnerability of the pancreas to ischemia-reperfusion injury, choices regarding preservation solution markedly affect pancreas transplant success. A retrospective single-center analysis of 380 pancreas transplants (2000-2019) was performed to correlate current preservation solutions with transplant outcomes. Early graft failure requiring transplantectomy within 30 days post-transplant occurred in 7.

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Background: Laryngeal paralysis, failure of arytenoid cartilage, and vocal fold abduction are commonly seen in older medium to large breed dogs. Observation of laryngeal function in dogs and cats is performed by transoral visualization. There are a variety of surgical techniques; aspiration pneumonia is the most common complication associated with surgical correction of laryngeal paralysis.

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Article Synopsis
  • * The analysis included 401 kidney transplant patients treated with tacrolimus and prednisone, comparing those on mycophenolate to those on mTORi, factoring in various patient characteristics to assess outcomes over an average follow-up of 2.6 years.
  • * Results indicated that mTORi were associated with lower rates of acute rejection and graft loss compared to mycophenolate, especially in patients outside the original TRANSFORM study criteria, suggesting mTORi could be a viable standard treatment approach in practice.
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Objective: The aim of the study was to evaluate the effect of cardiac arrest time (CAT) in donors after brain death (DBD) donors on pancreas transplant outcome.

Summary Of Background Data: Results from donors after circulatory death report good outcomes despite warm ischemia times up to 57 minutes. Previous cardiac arrest in DBD has been addressed as a potential risk factor, but duration of the CAT has never been evaluated.

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We aimed to determine the epidemiology, risk factors, and impact of bacterial infection on pancreatic function after pancreas transplantation. Data for pancreas transplant recipients were retrospectively reviewed between 2000 and 2014 for at least 1 year. We collected and analyzed post-transplant data for bacterial infection, morbidity, and mortality.

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Background: Pancreas outcomes in pancreas after kidney transplantation (PAK) patients have been reported as being inferior to those of patients who receive simultaneous pancreas and kidney transplantation (SPK). The influence of the kidney donor (i.e.

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Context: Corticosteroid withdrawal may reduce insulin resistance; however, it could also influence pancreatic autoantibody profile in simultaneous pancreas-kidney (SPK) transplant patients.

Objective: To evaluate the effect of corticosteroid withdrawal on glucose metabolism and anti-glutamic acid decarboxylase (GAD) antibody titers in SPK patients with type 1 diabetes after 12 months of follow-up.

Design: In this retrospective study, fasting glucose and glycated hemoglobin (A1c) were compared before and after 3, 6, and 12 months of corticosteroid withdrawal in 80 SPK patients.

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Introduction: The clinical results of ABO-incompatible (ABOi) and ABO-compatible (ABOc) kidney transplantation (KT) are similar. Protocol kidney biopsies (PKB) of ABOi transplant recipients show positivity for C4d without evidence of antibody-mediated rejection (ABMR), but little is known about the histologic progression.

Method: We evaluated histologic parameters in PKB at 12 months and also compared clinical outcome at 1 year.

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Donor after cardiac death (DCD) grafts have excellent survival despite the high incidence of delayed graft function (DGF). We assessed the feasibility of a mammalian target of rapamycin inhibitor (mTOR-I) protocol in uncontrolled DCD kidney transplantation and compared it with brain-dead donor (DBD) transplantation under calcineurin inhibitor (CNI) treatment. This retrospective study (2002-2011) included 109 Maastricht category II DCD patients and 218 standard-criteria DBD as controls.

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Unlabelled: From a theoretical point of view, an alloimmune response can not take place, still some type of standard immunosuppression is used in about 60% of patients receiving kidney grafts from their monozygotic twins. We aimed at assessing clinical response in patients receiving renal grafts from a living monozygotic twin donor when no immunosuppressive therapy is used.

Methods: This is a retrospective observational study of patients receiving kidney grafts from their monozygotic twins from 1969 to 2013.

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Simultaneous pancreas-kidney transplant (SPKT) has been associated with an increased risk of fracture. We prospectively evaluated the long-term effects of SPKT on bone mineral density (BMD) and fracture risk. During 1998 to 1999, 29 participants were consecutively monitored, and 18 completed the 10-year follow-up.

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Background: Few reports have studied the possible association between the haptoglobin (Hp) genotype and the risk of diabetic nephropathy (DN) in type 1 diabetes (T1D), with conflicting results to date.

Aims: To study whether the 2-2 Hp genotype is associated with an increased risk of overt DN in a Spanish population with T1D.

Methods: We performed a case-control study in a Spanish population.

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Unlabelled: Although recipients of a first HLA-identical living-donor kidney transplant seem to need less immunosuppression, there are no guideline recommendations for these patients, and few prospective trials are available.

Methods: We analyzed all PRA-negative patients who received a first kidney transplant from an HLA-identical living donor. The patients received no antibody induction.

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Candida peritonitis is a potentially life-threatening infection after abdominal transplantation, although there is scant information regarding its incidence and outcome. We analysed the incidence rate and outcome of Candida peritonitis in 717 liver or pancreas transplant recipients. Five cases of Candida peritonitis were diagnosed, representing the second most frequent cause of invasive fungal infection in the cohort.

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Background: Pancreas graft thrombosis is the most common cause of technical graft failure, with an incidence of up to 20% is some series. In most instances, vascular thrombosis of the graft will require immediate removal to avoid further abdominal complications. We present a total of four cases of complete venous thrombosis with preservation of function that were managed conservatively, resulting in long-term graft function.

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Background: Our objective was to describe efficacy and safety of enteric-coated mycophenolate sodium (EC-MPS) in de novo and maintenance recipients of kidney-pancreas transplant in the clinical practice.

Methods: Observational, multicentre, prospective, 12-month study.

Results: We included 24 de novo and 24 maintenance patients.

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The prognosis of human immunodeficiency virus (HIV) infection has improved in recent years with the introduction of antiretroviral treatment. While the frequency of AIDS-defining events has decreased as a cause of death, mortality from non-AIDS-related events including end-stage renal diseases has increased. The etiology of chronic kidney disease is multifactorial: immune-mediated glomerulonephritis, HIV-associated nephropathy, thrombotic microangiopathies, and so on.

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Objective: To describe the characteristics of metabolic control and beta-cell function in the long-term follow-up of patients with type-1 diabetes (T1D) who have undergone pancreas and kidney transplantation (PKTx).

Patients And Methods:   Twelve patients (eight males/four females) with normal pancreas and kidney graft function for more than 15 yr were included. Patient age at the time of transplantation was 35.

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Objective: The aim of this study was to describe the prevalence of cardiovascular disease risk factors (CVDRFs) and the degree of control in a Spanish population of patients with type 1 diabetes (DM1) and end-stage renal disease (ESRD) as well as the changes observed in this setting over 8 years.

Design And Methods: Patients with DM1 and ESRD were evaluated from 1999 to 2006. Clinical variables, smoking habit, glycosylated hemoglobin (HbA(1c)) and lipids values, and drug treatment were evaluated.

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The aim was to evaluate feasibility and safety of calcineurin inhibitor-free immunosuppression in high-risk donor kidney transplantation with sequential sirolimus introduction. Kidney transplant patients (n=76) with a donor aged >60 years, donor with acute renal failure, or a nonheartbeating donor were included. Immunosuppression consisted of antithymocyte globulin or basiliximab, mycophenolate mofetil, prednisone, and sequential introduction of sirolimus.

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Background: Genetically defined deficiencies in key components of the innate immune system have been associated with a greater risk of infection. The aim of this study was to assess the influence of genetic variability of innate immune receptors (mannose-binding lectin [MBL], mannose-associated serine-protease-2 [MASP-2], and Toll-like receptors [TLR4]) in the risk of infections after a kidney transplantation.

Methods: All patients undergoing a kidney or kidney-pancreas transplantation during a 3-year period were included.

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It is not unusual for simultaneous pancreas and kidney transplantation (SPK) to be performed in patients with type 2 diabetes (T2D), clinically classified as having type 1 diabetes (T1D). C-peptide determination is useful to identify these patients. We describe the prevalence and characteristics of patients with C-peptide levels >3 ng/mL, classified with T2D in 172 patients referred for SPK from 1998-2006.

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