Through the kidneys to the exit

Scientists at the National University of Science and Technology "MISIS" (NUST MISIS) have identified a new mechanism for removing magnetic nanoparticles through the kidneys, which will help to create more effective and safe ...

Calcium: Good for bones, good for cultural conservation

When it comes to cultural heritage sites, there are few things historians wouldn't do to preserve them for future generations. In particular, stone buildings and sculptures made of plaster and marble are increasingly at risk ...

Scientists develop probes to detect acute kidney failure early

Scientists from Nanyang Technological University, Singapore (NTU Singapore) have developed a type of imaging probe that allows for earlier detection of acute kidney failure, a rapidly-developing condition that can be fatal.

Metals influence C-peptide hormone related to insulin

Metals such as zinc, copper and chromium bind to and influence a peptide involved in insulin production, according to new work from chemists at the University of California, Davis. The research is part of a new field of "metalloendocrinology" ...

Video: Soon, kidneys-on-a-chip will rocket to space station

UW scientists are prepping a kidney-on-a-chip experiment at Cape Canaveral, Florida, awaiting a shuttle launch that will take the chips into space. At an altitude of 250 miles, astronauts will help study how reduced gravity in ...

Glyphosate under fire from San Francisco to Sri Lanka

Glyphosate, the world's most widely used herbicide and the active ingredient in Monsanto's weedkiller Roundup, is the subject of fierce controversy across the globe and is classified by the World Health Organization as "probably" ...

Pork essentially free of veterinary drug residues

In a basic survey of more than a thousand pork kidney samples, almost no veterinary drug residues were found and none at levels that even approached U. S. regulatory limits, according to a study just published by an Agricultural ...

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Kidney

The kidneys are paired organs, which have the production of urine as their primary function. Kidneys are seen in many types of animals, including vertebrates and some invertebrates. They are part of the urinary system, but have several secondary functions concerned with homeostatic functions. These include the regulation of electrolytes, acid-base balance, and blood pressure. In producing urine, the kidneys excrete wastes such as urea and ammonium; the kidneys also are responsible for the reabsorption of glucose and amino acids. Finally, the kidneys are important in the production of hormones including vitamin D, renin and erythropoietin.

Located behind the abdominal cavity in the retroperitoneum, the kidneys receive blood from the paired renal arteries, and drain into the paired renal veins. Each kidney excretes urine into a ureter, itself a paired structure that empties into the urinary bladder.

Renal physiology is the study of kidney function, while nephrology is the medical specialty concerned with diseases of the kidney. Diseases of the kidney are diverse, but individuals with kidney disease frequently display characteristic clinical features. Common clinical presentations include the nephritic and nephrotic syndromes, acute kidney failure, chronic kidney disease, urinary tract infection, nephrolithiasis, and urinary tract obstruction.

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