Trends of primary glomerular disease in Turkey: TSN-GOLD registry report.

Background: Although several renal biopsy registry reports have been published worldwide, there are no data on primary glomerular disease trends in Turkey.

Methods: Three thousand eight-hundred fifty-eight native kidney biopsy records were assessed in the Turkish Society of Nephrology Primary Glomerulopathy Working Group (TSN-GOLD) Registry. Secondary disease and transplant biopsies were not recorded in the registry.

The relationship between glomerular IgG staining and poor prognostic findings in patients with IgA nephropathy: the data from TSN-GOLD working group.

Background: Galactose-deficient IgA1 (Gd-IgA1) has an increased tendency to form immunocomplexes with IgG in the serum, contributing to IgAN pathogenesis by accumulating in the glomerular mesangium. Several studies showed that glomerular IgG deposition in IgAN is an important cause of mesangial proliferation and glomerular damage. This study aims to determine the association of the positivity of IgG and the intensity of IgG staining with a poor renal prognosis.

Characteristics of primary glomerular diseases patients with hematuria in Turkey: the data from TSN-GOLD Working Group.

Purpose: Hematuria is one of the most common laboratory findings in nephrology practice. To date, there is no enough data regarding the clinical and histopathologic characteristics of primary glomerular disease (PGD) patients with hematuria in our country.

Methods: Data were obtained from national multicenter (47 centers) data entered into the Turkish Society of Nephrology Glomerular Diseases (TSN-GOLD) database between May 2009 and June 2019.

A novel COL4A1 frameshift mutation in familial kidney disease: the importance of the C-terminal NC1 domain of type IV collagen.

Background: Hereditary microscopic haematuria often segregates with mutations of COL4A3, COL4A4 or COL4A5 but in half of families a gene is not identified. We investigated a Cypriot family with autosomal dominant microscopic haematuria with renal failure and kidney cysts.

Methods: We used genome-wide linkage analysis, whole exome sequencing and cosegregation analyses.

Combinatorial Conflicting Homozygosity (CCH) analysis enables the rapid identification of shared genomic regions in the presence of multiple phenocopies.

Background: The ability to identify regions of the genome inherited with a dominant trait in one or more families has become increasingly valuable with the wide availability of high throughput sequencing technology. While a number of methods exist for mapping of homozygous variants segregating with recessive traits in consanguineous families, dominant conditions are conventionally analysed by linkage analysis, which requires computationally demanding haplotype reconstruction from marker genotypes and, even using advanced parallel approximation implementations, can take substantial time, particularly for large pedigrees. In addition, linkage analysis lacks sensitivity in the presence of phenocopies (individuals sharing the trait but not the genetic variant responsible).

Demographic and clinical characteristics of primary glomerular diseases in Turkey.

Background: The aim of our study was to delineate the demographic and clinical properties of primary glomerular diseases of adult population in our country in the light of global knowledge.

Methods: All over the country, a total of 25 centers entered data between May 2009 and July 2012 to the database created by 'Glomerulonephritis Study Group' of Turkish Society of Nephrology. Demographic and clinical characteristics, specific diagnoses of glomerular diseases and biopsy findings recorded to the database were analyzed.

Incidence of end-stage renal disease in the Turkish-Cypriot population of Northern Cyprus: a population based study.

Background: This is the first report of the incidence and causes of end-stage renal disease (ESRD) of the Turkish-Cypriot population in Northern Cyprus.

Methods: Data were collected over eight consecutive years (2004-2011) from all those starting renal replacement therapy (RRT) in this population. Crude and age-standardised incidence at 90 days was calculated and comparisons made with other national registries.

Can we improve diagnosis of renal failure? A revised coding system for Middle East and North Africa.

Introduction: Reporting data on primary renal disease (PRD) causing end-stage renal failure (ESRF) is generally inconsistent and diagnostic groups poorly defined.

Methods: We have identified all papers published from the Eastern Mediterranean, Middle East, Arabia and North Africa during the decade 2000-2009 that report data on PRD in patients reaching ESRF in this region.

Results: We propose a system in which all diagnoses fall into one of 8 broad groups: ESRF of uncertain etiology, Congenital abnormalities of the kidney and urinary tract (CAKUT) and acquired Uropathy, Glomerular diseases, Tubulo-interstitial disease (TID), Other Congenital and Familial diseases, Diabetes, Renovascular disease, Other Specified Diagnoses.

Can we improve the diagnosis of renal failure? A revised coding system for the Middle East and North Africa.

We reviewed the regional data on primary renal disease (PRD) causing end-stage renal failure (ESRF) during the decade 2000-2009. Reporting was generally inconsistent and diagnostic groups were poorly defined. We propose a system in which all diagnoses fall into one of eight broad groups: ESRF of uncertain etiology, congenital abnormalities of the kidney and urinary tract (CAKUT) and acquired uropathy, glomerular diseases, tubulo-interstitial disease (TID), other congenital and familial diseases, diabetes, renovascular disease and other specified diagnoses.

A rare cause of focal segmental glomerulosclerosis: sarcoidosis.

A 58-year-old female patient diagnosed as having sarcoidosis 23 years ago developed nephrotic syndrome. No pathology was found which could explain this, so it was attributed to her sarcoidosis. Renal biopsy showed global and segmental sclerosis.