The novel coronaviruses belong to the β genus. COVID-19 is an acute respiratory infectious disease. People are generally susceptible. Currently, the patients infected by the nove1 coronavirus are the main source of infection; asymptomatic infected people
The two most important forms of vitamin D are vitamin D3 (cholecalciferol) and vitamin D2 (ergot calciferol). In human body, vitamin D3 and D2 combine with vitamin D binding protein in plasma and transport to liver. They are converted into 25 hydroxyvitam
Vitamin D is a kind of sterol hormone, which is produced by skin light. Two important forms of vitamin D include vitamin D3 (cholecalciferol) and vitamin D2 (ergocalcitol). In human body, vitamin binding protein combines with vitamin D3 and vitamin D2, an
Ferritin is a macromolecular protein with a molecular weight of at least 440kd (depending on the amount of iron in it). Serum ferritin is the binding iron in blood. It is the most sensitive index to detect iron deficiency in the body. Determination of fer
Cardiac troponin I (cTnI) is the most specific and sensitive biomarker in the diagnosis of myocardial injury and necrosis. CTnI increased at 412 h and maintained at 410 d after myocardial injury. CTnI entered the blood stream with irreversible ischemia my
Creatine kinase (CK) is a dimer enzyme with four different forms: mitochondrial isoenzyme and cytosolic isoenzyme CK-MM (muscle type), CK-BB (brain type) and CK-MB. The value of CK-MB in serum is an important index to diagnose myocardial ischemia
Myoglobin is a kind of protein existing in the cytoplasm of myocardium and skeletal muscle. It transports oxygen to muscle cells and can also serve as an oxygen storage capsule. The molecular weight of myoglobin is 17.8kd, so it can enter the blood circul
N-terminal brain natriuretic peptide precursor (NT-proBNP) is an inactive N-terminal fragment of BNP prohormone (proBNP) after division, which is mainly secreted by the left ventricle when cardiomyocytes are subjected to increased volume load and pressure
D-Dimer is a specific degradation product of fibrin monomer crosslinked by activator XIII and then hydrolyzed by plasmin. It is a specific marker of fibrinolysis process.Among fibrinolytic protein degradation products, only D-dimer cross-linked fragments
Myeloperoxidase (MPO) is a heme-cofactor-containing leukocyte enzyme secreted by neutrophils, monocytes, and macrophages of certain tissues, which is activated and releases MPO when subjected to inflammation or oxidative stress.
Heart-type fatty acid binding protein (H-FABP) is a small molecule protein with a molecular weight of 1400015000, which is specifically present in the cytoplasm of cardiomyocytes and is abundant in content, because cardiomyocytes are highly sensitive to i
C-reactive protein (CRP) is an acute phase protein and one of the first recognized acute phase proteins in history.The increase in serum or plasma concentration is caused by the release of inflammatory cytokines such as IL-6, which almost invariably shows
Procalcitonin (PCT) is a prohormone consisting of 116 amino acids with a molecular weight of about 12.7 kD.PCT is expressed by neuroendocrine cells (including C cells of thyroid, lung, and pancreatic tissues), which are enzymatically cleaved into (immatur
Serum amyloid A (SAA) is an acute phase reaction protein with a relative molecular mass of about 12 kD.Under normal circumstances, the content of SAA in blood is very low, which rises rapidly within 4872 h in the acute phase of inflammation or infection,
The two most important forms of vitamin D are vitamin D3 (cholecalciferol) and vitamin D2 (ergosterol).In humans, vitamins D3 and D2 bind to vitamin D-binding proteins in plasma and are transported to the liver, where they are 25-hydroxylated to 25-hydrox
Vitamin D is a steroid hormone produced after skin light exposure. Two important forms of vitamin D include vitamin D3 (cholecalciferol) and vitamin D2 (ergocalciferol). In humans, vitamin-binding proteins bind to vitamin D3 and vitamin D2 and transport t
Human N-terminal mid-segment osteocalcin (N-MID Osteocalcin) is one of the most important non-collagen proteins in bone matrix with a molecular weight of 5800 Daltons and 49 amino acids.It contains up to three carboxyglutamate residues (BGP) and is a bone
Parathyroid hormone (PTH) is synthesized in the parathyroid gland and secreted into the blood.Complete PTH is composed of a single polypeptide chain containing 84 amino acids with a molecular weight of about 9500 Doles. Selective determination of intact p
NGAL has a molecular weight of about 25 kDa. NGAL is expressed at a low level in normal kidney tissues. When exposed to nephrotoxic substances or ischemic injury occurs, a large amount of NGAL accumulates in cortical renal tubules, blood and urine, and NG
Retinol-binding protein is a protein involved in the transport of vitamin A in blood, synthesized by the liver and widely distributed in blood, cerebrospinal fluid, urine and other body fluids.
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