Saliva is a vital fluid in the human body. It promotes chewing of food, formation of a food breast, swallowing, protects the oral cavity, acts as a lubricant. Analysis of saliva helps to identify some problems in the body at an early stage of their development.
Slime is secreted by salivary glands of a person almost continuously. Without it, it would simply be impossible to function properly in many organs. Such multiple function of saliva is primarily due to its liquid characteristics, as well as specific components. This proves the analysis of saliva. As a liquid saliva takes an active part in the processes of digestion, protection of the oral cavity, tongue. Its main components help fight the microbes, protect the mucous membrane.
Composition of saliva
Saliva is a clear liquid without a color of alkaline reaction (pH = 7.4 - 8.0). In addition, saliva is a great material for biochemical research. It consists of more than 98% of water. Water and mucin act as solvent and lubricant. Also, the saliva includes:
- Antimicrobials: lysozyme, lactoperoxidase, secretory immunoglobulin A;
- Mayan enzymes: verbal lipase and ptialin (saliva amylase), mucin;
- Electrolytes: sodium, potassium, chloride;
- Growth factor of the epidermis;
- Components of the buffer system;
- Trace elements;
- Amino acids;
- Lactic acid;
- Vitamins C, B1, B12, H, K
In addition, saliva is a dynamic medium, which reflects daily changes in the body. What exactly can be easily determined by doing a test of saliva storage.
Biochemical analysis of saliva
Currently, there are a huge number of techniques that allow you to identify many diseases at an early stage and in a very short time. According to scientists, it is possible that in the future for diagnostics in humans instead of blood will be taken for the study of saliva. Experts believe that the blood test has a higher accuracy, but the analysis of saliva is more convenient for rapid diagnosis. Especially since antibodies produced by the body in response to viruses are also present in saliva. In their presence, one can judge a particular disease.
In the first place, the biochemical analysis of saliva will help detect a person's oral cavity dysbiosis, which is a symptom of diseases such as caries, stomatitis, gingivitis or diseases of the gastrointestinal tract. Also, the analysis of saliva is capable of detecting in humans the presence of diseases such as HIV or hepatitis, diseases of the lungs. In addition, saliva contains specific proteins, which are a kind of indicators of the risk of cancer, Alzheimer's, Parkinson's disease and diabetes.
The composition of saliva virtually reflects the composition of plasma blood. However, putting it is much easier than blood. We can say that in the future saliva will be made for analyzes even more often than blood.