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Porphyrins

What are Porphyrins? Porphyrins are organic molecules that naturally occur in the human body and play a critical role in the respiratory cycle of every cell. One of the most well-known porphyrins is heme, the pigment found in red blood cells (erythrocytes). Like all types of porphyrins, heme binds well to metals, such as iron....

Helicobacter Pylori

Helicobacter pylori is a spiral-shaped, gram-negative pathogen that causes chronic gastritis and is responsible for most duodenal ulcers. Infection with this bacterium is a major risk factor for the development of gastric adenocarcinoma and MALT-type gastric lymphoma (Mucosa-associated lymphoid tissue – MALT). Recent studies show that Helicobacter pylori also participates in the pathogenesis of other...

What is OGTT and what is it used for?

OGTT je skraćenica od Oral Glucose Tolerans Test tj. Oralni Test Tolerancije na Glukozu. Služi za dijagnostikovanje poremećaja u metabolizmu šećera. Izvodi se tako što se vrši serijsko određivanje glukoze u serumu pacijenata, pre i posle davanja glukoze oralno.

Osteopenia and Osteoporosis

Osteopenija je stanje koje prethodi osteoporozi. Kod osteopenije gustina kostiju je niža od normalne gustine ali ne toliko niska da bi se okarakterisala kao osteoporoza. Osteopenija nema simptoma. Otkriva se isključivo merenjem gustine kostiju (denzitometrija).

Cortisol

Cortisol is a hormone secreted by the adrenal cortex, commonly referred to as the “stress hormone” due to its role in the body’s stress response. It accounts for over 80% of the total concentration of 17-hydroxycorticosteroids in the blood. Most cortisol in the blood is bound to transcortin (corticosteroid-binding globulin, CBG) and albumin (around 90%)....