Publications by authors named "Jair Munoz Mendoza"

Article Synopsis
  • The study investigates the often-ignored non-cancerous kidney tissue removed during nephrectomies, focusing on how global glomerulosclerosis (GS), interstitial fibrosis (IF), and arteriosclerosis (AS) relate to kidney function, measured by estimated glomerular filtration rate (eGFR) and protein levels in urine.
  • A cross-sectional analysis of 781 patients revealed that higher levels of GS, IF, and AS correspond to lower eGFR and increased proteinuria, with specific demographic factors like obesity and hypertension affecting these relationships.
  • The findings indicate that not only are more severe degrees of GS, IF, and AS linked to worse kidney function and proteinuria, but also that conditions like obesity, hypertension
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Introduction: Patients with end-stage renal disease (ESRD) on dialysis and COVID-19 infection have an increased risk of in-hospital mortality, but whether these patients have a higher long-term mortality risk is unknown.

Materials And Methods: Retrospective chart review of 958 patients admitted with COVID-19 infection or those with ESRD admitted for any other reason between February 2020 and August 2020. We collected data on demographics, comorbidities, laboratory tests, and mortality.

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A patient with end-stage renal disease on hemodialysis with a previous positive SARS-CoV-2 IgG antibody was diagnosed with severe COVID-19. Issues regarding reinfection, the potential lack of antibody protection after asymptomatic infection, the possibility of antibody dependent enhancement and careful interpretation of antibody test results are discussed.

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Inflammation is a consequence of chronic kidney disease (CKD) and is associated with adverse outcomes in many clinical settings. Inflammation stimulates production of fibroblast growth factor 23 (FGF23), high levels of which are independently associated with mortality in CKD. Few large-scale prospective studies have examined inflammation and mortality in patients with CKD, and none tested the interrelationships among inflammation, FGF23, and risk of death.

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The effect of diuretics on residual renal function expressed as residual GFR (rGFR) and urine volume (rUV) using 24-hour urine collections has not been well examined in hemodialysis (HD) patients. We present a small (seven patient) but provocative case series describing a strikingly low rate of decline in rUV and rGFR (average of creatinine and urea clearances, 24-hour urine collections) in patients treated with increasing doses of furosemide (up to 360 mg/day) during the first 2 years after initiation of HD. Between 6 and 12 months, the mean rUV fell by 1 ml/month, whereas rGFR declined by 0.

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Fluid overload in patients undergoing hemodialysis contributes to cardiovascular morbidity and is a major cause of hospitalizations. It is often addressed by reinforcing the importance of a low-salt diet with patients and challenging estimated dry weights. More recently, interest has shifted toward the dialysate sodium prescription as a strategy to improve fluid overload and its adverse sequelae.

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Introduction: Amyloid A (AA) amyloidosis is a systemic form of amyloidosis secondary to chronic infections and inflammatory disorders. An acute-phase protein produced by the liver, serum amyloid A (SAA) is the precursor of AA amyloid fibrils. AA amyloid deposition occurs predominantly in the kidneys, spleen, adrenal glands, liver and gastrointestinal tract.

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Background And Objectives: Little is known regarding whether mortality among ESRD patients with SLE differs between those initiating with peritoneal dialysis (PD) versus hemodialysis (HD). This study compared the mortality risk of ESRD patients with SLE initiating with PD versus HD after matching their baseline sociodemographic and clinical factors.

Design, Setting, Participants, & Measurements: Of 11,023 ESRD patients with SLE initiating dialysis with PD or HD between 1995 and 2006 with complete records in the US Renal Data System, 1352 pairs were matched on 13 predictors utilizing a predicted probability of group membership into the PD group using propensity score matching.

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Article Synopsis
  • Anti-glomerular basement membrane (GBM) disease is a serious kidney disorder caused by autoantibodies against type IV collagen, with some patients also showing associated antineutrophil cytoplasmic antibodies (ANCA).
  • Factors leading to this immune response are still unclear, but genetics and environmental influences are believed to contribute, with molecular mimicry possibly playing a role.
  • A case study highlights a 66-year-old woman with dengue who developed anti-GBM disease and ANCA, emphasizing the need for awareness of autoimmune kidney complications in dengue patients.
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Background And Objectives: Levels of fibroblast growth factor 23 (FGF23) and inflammatory markers are commonly elevated in CKD, and each is associated with adverse clinical outcomes. This study tested the hypothesis that FGF23 is independently associated with inflammation in CKD.

Design, Setting, Participants, & Measurements: The association between levels of FGF23 and the inflammatory markers IL-6, C-reactive protein (CRP), TNF-α, and fibrinogen was assessed in a cross-sectional analysis of 3879 participants enrolled in the Chronic Renal Insufficiency Cohort (CRIC) study between June 2003 and September 2008.

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Recent studies have focused on the association between dialysate sodium (Na(+)) prescriptions and interdialytic weight gain (IDWG). We report on a case series of 13 patients undergoing conventional, thrice-weekly in-center hemodialysis with an individualized dialysate Na(+) prescription. Individualized dialysate Na(+) was achieved in all patients through a stepwise weekly reduction of the standard dialysate Na(+) prescription (140 mEq/L) by 2-3 mEq/L until reaching a Na(+) gradient of -2 mEq/L (dialysate Na(+) minus average plasma Na(+) over the preceding 3 months).

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Background: Patients on in-center nocturnal hemodialysis therapy typically experience higher interdialytic weight gain (IDWG) than patients on conventional hemodialysis therapy. We determined the safety and effects of decreasing dialysate sodium concentration on IDWG and blood pressure in patients on thrice-weekly in-center nocturnal hemodialysis therapy.

Study Design: Quality improvement, pre-post intervention.

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Background: A higher sodium gradient (dialysate sodium minus pre-dialysis plasma sodium) during hemodialysis (HD) has been associated with sodium loading; however, its role is not well studied. We hypothesized that a sodium dialysate prescription resulting in a higher sodium gradient is associated with increases in interdialytic weight gain (IDWG), blood pressure (BP) and thirst.

Methods: We conducted a cross-sectional study on 1084 clinically stable patients on HD.

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Objective . This study aims to highlight the challenges in the diagnosis of hyperparathyroidism (HPT) in patients with advanced chronic kidney disease (CKD). Methods .

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