Definition of Immunological Tolerance Immunological tolerance is a state of specific immunologic nonreactivity to a specific antigen to which an individual has been previously exposed. Immune tolerance stops the immune system from responding to self-antigens. Mechanisms of Tolerance The proposed mechanisms of tolerance are clonal deletion, clonal anergy, and suppression. Clonal deletion: Clones of B … Read more
A nosocomial infection, also known as a hospital-acquired infection, is an infection that a patient contracts during the course of receiving treatment for another condition in a healthcare setting such as a hospital, nursing home, or clinic. Nosocomial infections have been a significant problem throughout history, with reports of healthcare-associated infections dating back to the … Read more
Hey, in this article I will discuss the complement pathway which is one of the easiest pathways. Basically, This complement pathway helps to kill microorganisms by antibodies or phagocytosis. The complement pathway has been accomplished in three main ways, which I have discussed step by step below. Believe me, if you understand the first step … Read more
What is Nervous System? Definition of Nervous System The nervous system is a complex network of cells and tissues that coordinates and regulates the activities of an organism by transmitting electrical signals between different parts of the body. Cells of the Nervous System Neurones Glial Cells Astrocytes Oligodendrocytes Microglia Ependymal cells Nervous System Structure and … Read more
Maintain an infectious disease in a human population the pathogens must need to be transmitted from one host or source to another. In Biology the term transmission is refers to the passing of a pathogen from one individual to another individual which can cause a serious disease or infection. The transmission of disease is occurred … Read more
What are Cytokines? Definition of Cytokines Cytokines are small proteins that play a crucial role in cell signaling, mediating communication between cells and regulating various physiological processes. What is Cytokinesis? Definition of Cytokinesis Cytokinesis is the process of cell division in which a single cell divides into two daughter cells, each with its own nucleus … Read more
Mode of action of antibiotics Antibiotics are used in medicine and agriculture to prevent bacterial infection. The mode of action of antibiotics is varied based on the types of antibiotics. Some of them act by limiting the growth of bacteria and some of them act by killing the bacterial cell by inhibiting cell wall synthesis. … Read more
Treatment of an antifungal disease is quite difficult than a bacterial infection. The reason is quite clear that most of the eukaryotic fungal cells have a lot in common with human cells, so antifungal drugs can also damage the host body cells. Also, some fungi have detoxification properties that can modify antifungal drugs and as … Read more
Antiviral drug referred to those drugs or chemical agents that are used for the treatment of viral infection. There are present several types of antiviral drugs that are used for the treatment of viral infections such as Amantadine, Acyclovir, Azidothymidine, Ganciclovir, Abacavir. Each of these antiviral drugs follows a different mechanism. The variation in their … Read more
Antibiotic resistance or Drug resistance to bacteria is a modern enemy of the new generation. Before we know about antibiotic resistance, we must first know what bacteria are? Bacteria is a type of germs, which is found inside or outside of human or animal bodies. Most of the bacteria are harmless, and some of them … Read more
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