Late onset lupus nephritis: analysis of clinical manifestations and renal pathological features in Siriraj Hospital.

Background: Lupus nephritis (LN) is uncommon after the age of 50 years and studies of elderly patients with LN are rare. The authors conducted the current study to determine the clinical manifestations, pathological features and prognosis of 30 Thai patients with late onset LN in Siriraj hospital in Bangkok from 1989 to 2006.

Material And Method: Thirty LN patients with a disease onset beyond the age of 50 years from 1989 to 2006 were enrolled in this retrospective study.

Nephrotic syndrome in elderly patients: three years experience at Siriraj Hospital.

Background: The population age is being high and nephotic syndrome is a common renal disease.

Objective: To find the etiology and clinical manifestations of nephrotic syndrome in the elderly patients who underwent renal biopsy at Siriraj hospital including management and outcome.

Material And Method: Retrospective study in 76 nephrotic patients whose age > or =50 years and underwent renal biopsy between 2005-2007.

Clinical features and outcomes in patient with antineutrophil cytoplasmic autoantibody-positive glomerulonephritis associated with propylthiouracil treatment in Siriraj Hospital.

Background: ANCA is detected in several vasculitic diseases, including drug-induced systemic vasculitis: propylthiouracil (PTU), hydralazine, minocycline, penicillamine, allopurinol, procainamide, carbimazole, thiamazole, clozapine and phenytoin. All have been known to induce ANCA positive vasculitis in adult patients.

Objective: To study the clinical manifestation, renal pathology and outcome of patients with ANCA positive vasculitis associated with propylthiouracil treatment in Siriraj Hospital.

Arterial occlusion in nephrotic syndrome: report of four cases in Siriraj Hospital.

Venous thrombosis is commonly found in nephrotic syndrome, but arterial occlusion is never report in Thailand. Four cases with cerebral and femoral arteries occlusion were demonstrated. The early diagnosis and appropriate intervention can improve outcomes, reduce mortality and morbidity significantly.

Non-diabetic glomerular disease in type II DM: 10 years experience.

Background: The nature of renal damage in patients with type II diabetes remains unclear.

Objective: To analyze the renal histopathology in type II diabetes who underwent renal biopsy at Siriraj Hospital, renal unit over 10 year period.

Material And Method: The clinical and biochemical data in 54 patients with Type II DM, atypical cases of DN, were subjected to renal biopsy and analyzed retrospectively.

Prevalence and clinicopathologic findings of antiphospholipid syndrome nephropathy in Thai systemic lupus erythematosus patients who underwent renal biopsies.

Aim: To determine the prevalence of antiphospholipid syndrome nephropathy (APSN) in Thai systemic lupus erythematosus (SLE) patients who underwent renal biopsy and to compare the relationship of renal histopathology and other significant clinical parameters between SLE patients with and without APSN.

Methods: A retrospective analysis was undertaken in systemic lupus erythematosus patients (n = 150, 44 <15 years old, 106 0e;15 years old) who underwent renal biopsy. The specimens were evaluated for histological features of APSN and other significant clinical parameters.

Immunohistochemical study for the diagnosis of Alport's syndrome.

Background: Alport's syndrome (AS) is the most common cause of inherited glomerular disease in Thailand. The majority of cases show X-linked inheritance, which is caused by mutations in the gene coding for the alpha5 chain of type IV collagen in the glomerular basement membrane (GBM) and epidermal basement membrane (EBM). Such mutation usually leads to a reduction in protein amount, thus, immunohistochemical studies have been considered in diagnostic evaluation.

The effect of alpha-tocopherol on the oxidative stress and antioxidants in idiopathic IgA nephropathy.

Objective: Nearly 25% of IgA nephropathy patients progress to end-stage renal disease over a 20-25 year follow-up period. IgA containing immune complex stimulates oxygen free radical production by mesangial cells in vitro, which may mediate glomerular injury in this disorder. Therefore, we studied whether dietary supplementation with the antioxidant agent, vitamin E, attenuates renal damage in patients with IgA nephropathy.

Proteomic identification of altered proteins in skeletal muscle during chronic potassium depletion: Implications for hypokalemic myopathy.

Prolonged potassium depletion is a well-known cause of myopathy. The pathophysiology of hypokalemic myopathy, however, remains unclear. We performed a gel-based, differential proteomics study to define altered proteins in skeletal muscles during chronic potassium depletion.

A histopathological study of hearts and spleens of hamsters (Mesocricetus auratus) infected with Leptospira interrogans, serovar pyrogenes.

The effects of Leptospira interrogans on the heart and spleen of hamsters were studied histopathologically. Infected hamsters were sacrificed at 1 hour, 6 hours and on days 1, 2, 3, 4, 5 and 6 after inoculation with Leptospira interrogans serovar pyrogenes. The heart and spleen of each of the sacrificed animals were removed and processed for routine conventional light microscopy.

An analysis of 3,555 cases of renal biopsy in Thailand.

Background: The knowledge of the epidemiology of biopsied renal diseases provides useful information in clinical practice. There are several epidemiologic population-based studies of biopsy-proven nephropathies with detailed clinicopathologic correlations that could be different according to the country analyzed.

Objective: To identify the prevalence of primary and secondary glomerular diseases and to study the trend of the pattern changes of the glomerulopathy in Thailand.

Systemic lupus erythematosus in Thai children: clinicopathologic findings and outcome in 82 patients.

Objectives: To define the patterns of clinicopathologic findings and to identify the risk factors for renal failure and mortality of childhood-onset systemic lupus erythematosus (SLE) in Thailand.

Material And Method: The study is a retrospective analysis of clinical manifestations, laboratory data, and pathologic findings, treatment modalities, and outcome of 82 patients with biopsy-proven lupus nephritis (LN) with disease onset between I January 1987 and 31 December 1997. All children developed these first manifestations at the age 13 years or under

Results: Sixty-four (789%) patients were females and eighteen (22%) were males (ratio female/male = 3.

Proteomic identification of alterations in metabolic enzymes and signaling proteins in hypokalemic nephropathy.

Hypokalemic nephropathy caused by prolonged K(+) deficiency is associated with metabolic alkalosis, polydipsia, polyuria, growth retardation, hypertension, and progressive tubulointerstitial injury. Its pathophysiology, however, remains unclear. We performed gel-based, differential proteomics analysis of kidneys from BALB/c mice fed with high-normal-K(+) (HNK), low-normal-K(+) (LNK), or K(+)-depleted diet for 8 wk (n = 6 in each group).

Identification of human urinary trefoil factor 1 as a novel calcium oxalate crystal growth inhibitor.

Previous research on proteins that inhibit kidney stone formation has identified a relatively small number of well-characterized inhibitors. Identification of additional stone inhibitors would increase understanding of the pathogenesis and pathophysiology of nephrolithiasis. We have combined conventional biochemical methods with recent advances in mass spectrometry (MS) to identify a novel calcium oxalate (CaOx) crystal growth inhibitor in normal human urine.

Effect of fish oil on oxidative stress, lipid profile and renal function in IgA nephropathy.

The omega-3 polyunsaturated fatty acids in fish oil have been shown to produce beneficial effects, such as a reduction in blood pressure, proteinuria, lipid levels and inflammation. Aggregated immunoglobulin A obtained from IgA nephropathy patients induced greater oxygen free radicals in polymorphonuclear leukocytes than other glomerulopathy. All of which may affect the course of IgA nephropathy.

Percutaneous renal biopsy in children.

The authors studied the percutaneous renal biopsies performed in the Department of Pediatrics, Siriraj Hospital from January 2000 to March 2001 in order to evaluate the safety and benefit of the procedure. Eighty-five patients (90 episodes) were included in the study, aged 7.8+/-3.