Biomaterial Database

Tamm-Horsfall protein in reflux nephropathy. 1995

G Papanikolaou, and A J Arnold, and A J Howie

Department of Urology, Queen Elizabeth Hospital, Birmingham, UK.

The distribution of Tamm-Horsfall protein, the main protein in normal urine, was studied immunohistologically in the kidneys of 70 pigs with unilateral vesico-ureteric reflux but without outflow obstruction. Strains of Escherichia coli were inoculated in the bladder. Inflammatory changes of reflux nephropathy (chronic pyelonephritis) were found in 52 pigs. There were extra-tubular deposits of Tamm-Horsfall protein in the kidneys of only 26 pigs. These deposits were small, increased in prevalence as the size of inflamed areas increased, and were not associated with deposits of the protein in glomeruli. These findings suggest that escape of Tamm-Horsfall protein from tubules and backwash into glomeruli are not major features of low pressure reflux nephropathy, unlike the findings in outflow obstruction of the lower urinary tract. There was no evidence that a reaction to Tamm-Horsfall protein was important in the pathogenesis of reflux nephropathy.

UI	MeSH Term	Description	Entries
D007668	Kidney	Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.	Kidneys
D007678	Kidney Glomerulus	A cluster of convoluted capillaries beginning at each nephric tubule in the kidney and held together by connective tissue.	Glomerulus, Kidney
D007684	Kidney Tubules	Long convoluted tubules in the nephrons. They collect filtrate from blood passing through the KIDNEY GLOMERULUS and process this filtrate into URINE. Each renal tubule consists of a BOWMAN CAPSULE; PROXIMAL KIDNEY TUBULE; LOOP OF HENLE; DISTAL KIDNEY TUBULE; and KIDNEY COLLECTING DUCT leading to the central cavity of the kidney (KIDNEY PELVIS) that connects to the URETER.	Kidney Tubule,Tubule, Kidney,Tubules, Kidney
D009088	Mucoproteins	Conjugated proteins in which mucopolysaccharides are combined with proteins. The mucopolysaccharide moiety is the predominant group with the protein making up only a small percentage of the total weight.
D011704	Pyelonephritis	Inflammation of the KIDNEY involving the renal parenchyma (the NEPHRONS); KIDNEY PELVIS; and KIDNEY CALICES. It is characterized by ABDOMINAL PAIN; FEVER; NAUSEA; VOMITING; and occasionally DIARRHEA.	Necrotizing Pyelonephritis,Pyelonephritis, Acute Necrotizing,Pyelonephritides
D004927	Escherichia coli Infections	Infections with bacteria of the species ESCHERICHIA COLI.	E coli Infections,E. coli Infection,Infections, E coli,Infections, Escherichia coli,E coli Infection,E. coli Infections,Escherichia coli Infection,Infection, E coli,Infection, E. coli,Infection, Escherichia coli
D005260	Female		Females
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001437	Bacteriuria	The presence of bacteria in the urine which is normally bacteria-free. These bacteria are from the URINARY TRACT and are not contaminants of the surrounding tissues. Bacteriuria can be symptomatic or asymptomatic. Significant bacteriuria is an indicator of urinary tract infection.	Bacteriurias
D013552	Swine	Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).	Phacochoerus,Pigs,Suidae,Warthogs,Wart Hogs,Hog, Wart,Hogs, Wart,Wart Hog

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