[Metabolism of calcium in sarcoidosis].

Sarcoidosis is a multisystemic disease of unknown etiology with characteristic picture of immunological disorders. As an unfavourable course of the disease both fibrosis and abnormal calcium metabolism may occur. The last one is reflected by hypercalcemia and/or hypercalcuria.

[Activity of angiotensin converting enzyme I and levels of acid alpha glycoprotein in selected liver and biliary tract diseases].

Differential value of ACE activity and acid alpha 1-glycoprotein was evaluated in the selected liver and biliary tract diseases. The study involved 75 patients divided into 4 subgroups, according to the character of their disease: patients with the acute viral hepatitis, chronic viral hepatitis, liver cirrhosis, and cholelithiasis. It was found that ACE activity was significantly increased in all pathologies involving liver parenchyma, and normal in patients with extrahepatic cholestasis.

Urinary excretion of protein and non-protein hydroxyproline in patients with sarcoidosis and interstitial pulmonary fibrosis.

The determination of total hydroxyproline (Hyp) with separation into protein and non-protein fractions was carried out in 24-hour urine samples of healthy persons, patients with sarcoidosis and patients with interstitial pulmonary fibrosis (i.p.f.

Blood serum angiotensin-converting enzyme, alfa2-macroglobulin and triglycerides in patients with diabetes.

Blood serum activity of ACE, alfa2-macroglobulin as well as triglycerides concentration was determined in 90 patients with diabetes and in 40 healthy persons. Taking into account criteria established by WHO the patients with diabetes were divided into two groups. The first group consisted of 32 patients with diabetes of type I (juvenile one); the second group consisted of 58 patients with diabetes of type II (adult one).