(CK) activity determination: The activity of plasma CK was analyzed at National Health Laboratory Services, Port Elizabeth (South Africa) using Model DXC 600 machine (Beckman Coulter, Ireland) with reactive ingredients for SYCHRON Systems (CK [2.sup.*] 200).
High levels of brain-type creatine kinase
activity in human platelets and leukocytes: a genetic anomaly with autosomal dominant inheritance.
Serum Creatine Kinase
activity has inverse relationship with thyroid activity.
activity inhibitor in sera from patients with muscle disease.
Thyroid stimulating hormone and creatine kinase
values of the patient at admission and follow up 10.02.2015 16.03.2015 20.04.2015 02.10.2015 TSH 32.38 19.22 2.68 0.22 ([micro]IU/mL) CK (U/L) 10535 2592 120 101 TSH: Thyroid stimulating hormone, CK: Creatine kinase
 Nonstandard abbreviations: cTn, cardiac troponin; hs, high sensitivity; CK, creatine kinase
Blood tests confirmed that both patients had eosinophilia and elevated creatine kinase
In muscle tissues, the muscle iso-form of creatine kinase
(CKM) is a key enzyme of energy supply (2-5).
The level of creatine kinase
was 30,445 IU/L, creatine phosphokinase 4,145.5 MB, and lactate dehydrogenase (LDH) 2,599.
Total blood creatine kinase
concentration was assessed by taking and analysing 30 pL of blood, using a Reflotron (Reflotron Plus, Roche, Rotkreuz, Switzerland) (CV = 3.1%) (Horder and Jorgensen, 1991).
(6) Myopathy is defined as any muscle symptom--pain, tenderness or weakness, accompanied by a creatine kinase
concentration greater than ten times the upper limit of normal for the particular laboratory.
Secondary check: white blood cells increased, neutrophile granulocyte count and proportion increased (WBC: 13.5*[10.sup.9], neutral cells: 12.32*[10.sup.9], neutrophil proportion: 91.1%), normal creatine kinase
(93 IU/L, normal range is 26-140 IU/L), and the CT results of brain at that day showed no obvious abnormalities.