Renin

A hormone-like enzyme, generated and stored in the kidneys. If blood pressure drops, it is released from the kidneys and is highly efficient in raising blood pressure.

Resorption

The re-uptake of substances from tissues, in particular bone, into the blood. It should not be confused with absorption, the initial uptake of substances into the body, for instance from food in the intestines, through the lungs and via the skin. Reabsorption, in contrast, occurs only in the kidneys and is defined as the uptake of substances from the nephron back into the blood.

Retina

The layer of nerve cells lining the back wall inside the eye.

Sclerosis

The hardening of an organ or tissue caused by a replacement of normal tissue with connective tissue. Sclerotic tissues and organs are less elastic.

SDMA

SDMA = Symmetrical Dimethylarginine, which is a degradation product of the amino acid arginine and is excreted solely through the kidneys. SDMA is a highly specific biomarker for kidney function in cats.
Read more: SDMA test (blood test)

Secondary hyperparathyroidism

Durch die bestehende Hypokalzämie (erniedrigter Kalzium-Blutspiegel) bei der chronischen Nierenerkrankung, aber auch bei Leber- oder Darmerkrankungen kann es zu einer unkontrollierten Produktion von Parathormon (PTH) in der Nebenschilddrüse kommen.

Staging

= Classification of the cat into a stage of chronic kidney disease according to IRIS

Stomatitis

A site of inflammation of the mouth mucosa.

SUC

SUC describes a special treatment consisting of a multitude of individual components (multicomponent). These are applied at different points in the therapy of CKD ( multitarget).
SUC is an acronym derived from the ingredients:

Solidago compositum ad us. vet.
Ubiquinone compositum
Coenzyme compositum

Ulcer

A deep discontinuity in the skin or in a mucus membrane, caused by a chronic process of cell death, rather than trauma. Gastric ulcers are breaks in the inner lining of the stomach.