Immunosuppressive regimens based on Cyclophospamide or Calcineurin inhibitors: Comparison of their effect in the long term outcome of Primary Membranous Nephropathy.

Introduction: Management of the Primary Membranous Nephropathy (PMN) usually involves administration of immunosuppressives. Cyclophosphamide (Cyclo) and Calcineurin Inhibitors (CNIs) are both widely used but only limited data exist to compare their efficacy in long term follow-up.

Aim: The aim of the present study was to estimate and compare long term effects of Cyclo and CNIs in patients with PMN.

The P274S Mutation of Lecithin-Cholesterol Acyltransferase (LCAT) and Its Clinical Manifestations in a Large Kindred.

Rationale & Objective: Lecithin-cholesterol acyltransferase (LCAT) catalyzes the maturation of high-density lipoprotein. Homozygosity for loss-of-function mutations causes familial LCAT deficiency (FLD), characterized by corneal opacities, anemia, and renal involvement. This study sought to characterize kidney biopsy findings and clinical outcomes in a family with FLD.

The Effect of Natural LCAT Mutations on the Biogenesis of HDL.

We have investigated how the natural LCAT[T147I] and LCAT[P274S] mutations affect the pathway of biogenesis of HDL. Gene transfer of WT LCAT in LCAT(-/-) mice increased 11.8-fold the plasma cholesterol, whereas the LCAT[T147I] and LCAT[P274S] mutants caused a 5.

Multicenter epidemiological study to assess the population of CKD patients in Greece: results from the PRESTAR study.

Background: Chronic Kidney Disease (CKD) is a relatively common condition not only associated with increased morbidity and mortality but also fuelling End Stage Renal Disease (ESRD). Among developed nations, Greece has one of the highest ESRD incidence rates, yet there is limited understanding of the epidemiology of earlier stages of CKD.

Methods: Cross-sectional survey of pre-dialysis CKD outpatients in nephrology clinics in the National Health Care system between October 2009 and October 2010.

Residual renal function in hemodialysis patients: the role of Angiotensin-converting enzyme inhibitor in its preservation.

Residual Renal function (RRF) has an important role in the overall morbidity and mortality in hemodialysis patients. The role of angiotensin-converting enzyme inhibitor (ACEi) in preserving renal function in chronic proteinuric nephropathies is well documented. We test the hypothesis that enalapril (an ACEi) slows the rate of decline of RRF in patients starting hemodialysis.

Corticosteroids and ciclosporin A in idiopathic membranous nephropathy: higher remission rates of nephrotic syndrome and less adverse reactions than after traditional treatment with cytotoxic drugs.

Background/aim: Idiopathic membranous nephropathy, the most common cause of nephrotic syndrome in adults, has been traditionally treated with corticosteroids and cytotoxic drugs. Ciclosporin A (CsA) is used in resistant cases, but also as a first-line treatment, due to the serious side effects of cytotoxic drugs. In this study, the remission rates of nephrotic syndrome and the incidence of side effects of corticosteroids and low CsA doses are compared with those after treatment with cytotoxic drugs.

Bone marrow microvascular density and angiogenic growth factors in multiple myeloma.

There is evidence that angiogenesis plays an important role in the progression of multiple myeloma (MM). Hepatocyte growth factor (HGF) and tumor necrosis factor-alpha (TNF-alpha) are cytokines that potently stimulate angiogenesis. We evaluated the microvascular density (MVD) of bone marrow biopsies (after immunostaining with anti-CD34 antibodies) and serum levels of HGF and TNF-alpha in 43 patients with newly diagnosed MM.

Hematological abnormalities in inborn errors of metabolism--how frequent are they? The Cretan experience.

This study aimed to ascertain the frequency and type of hematological findings in a defined group of patients with inborn errors on Crete. The key role of these hematological findings in the diagnosis of the inborn errors in daily practice was explored. A variety of hematological findings were obtained from 31 of the 132 subjects who had been referred to the University Hospital of Heraklion.

Biochemistry and pathophysiology of vanadium.

The biochemistry and function of vanadate and its possible role in health as well as in disease remains one of the most fascinating stories in biology. This review has surveyed the pertinent literature regarding its effect in the normal kidney and other tissues. While inhibition of the Na(+)-K+ ATPase enzyme was the first described and perhaps the most widely studied, the element clearly has other actions.

H-K-ATPase in distal renal tubular acidosis: urinary tract obstruction, lithium, and amiloride.

In previous studies we suggested that urinary tract obstruction and chronic administration of lithium or amiloride were models of "voltage-dependent" distal renal tubular acidosis (DRTA). Subsequently, differences among these three models suggested that the pathogenesis was far more complex than we originally proposed. A recent study showed that H-adenosinetriphosphatase (H-ATPase) activity was decreased in all three experimental models.

Effect of lithium and amiloride on collecting tubule transport enzymes.

In humans and animals, the administration of Li or amiloride results in a defect in urinary acidification. Both agents are thought to cause this by a voltage-dependent mechanism in the distal nephron. This study was designed to determine the effects of chronic Li and amiloride administration on the two main transport enzymes in rat nephron collecting tubule, the Na-K-adenosine triphosphatase (ATPase) and the H(+)-ATPase.

The effect of pregnancy on renal function: physiology and pathophysiology.

Marked changes in renal function occur with pregnancy. We present a summary of these changes in this review and give insight into possible mechanisms if they are known. Controversies exist regarding the therapy of pregnancy-induced hypertension and asymptomatic and recurrent bacteriuria.

Vanadate causes hypokalemic distal renal tubular acidosis.

Considerable evidence supports the presence of an H(+)-K(+)-ATPase along the mammalian nephron. Inhibition of this enzyme might be expected to reduce acid excretion while increasing potassium excretion, thus causing hypokalemic distal renal tubular acidosis (RTA). In this study we administered vanadate at a dose of 5 mg/kg ip for 10 days to rats.