NEET PG DENTAL EXAM

HEAD NECK

SALIVARY GLANDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The patient’s saliva has been tested for antibacterial activity. What saliva component has antibacterial properties?
A
Lysozyme
B
Amylase
C
Ceruloplasmin
D
Cholesterol
E
Parotin
Explanation: 

Detailed explanation-1: -Lysozyme and lactoferrin are examples of proteins with antimicrobial properties. Lactoferrin is believed to have antibacterial, antifungal, and antiviral properties. Salivary peroxidase has antibacterial properties, whereas histatins have been associated with antibacterial and antifungal properties.

Detailed explanation-2: -As an important part of the nonspecific immune defense mechanism, lysozyme is an important component of antibacterial in saliva. It participates in the host nonimmune defense against bacteria, maintaining the steady state equilibrium of the oral cavity environment.

Detailed explanation-3: -Lysozyme acts as an antibacterial agent that prevents infections. It functions as an antimicrobial agent by cleaving the peptidoglycan component of bacterial cell walls which eventually leads to the death of the bacteria. Additionally, saliva also contains thiocynate ions(SCN]−, which are also bacteriocidal in nature.

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