This article describes the evolutionary origin of mitochondrial genes and examines how mutations in mitochondrial DNA influence cellular function, aging, and human disease. Mitochondria are essential organelles responsible for generating most of the energy required for cellular activities. Unlike other cellular components, they possess their own genetic material, reflecting a unique evolutionary history linked to … Read more >>
This article provides an overview of the role of protein kinases in controlling the cell cycle. Cell division is one of the most tightly regulated processes in biology, ensuring that new cells inherit an accurate copy of genetic information. This complex process is controlled by an intricate network of signaling pathways that coordinate growth, DNA … Read more >>
This article provides a brief overview of the role of ion channels in neuronal electrical signaling. Electrical signaling in the nervous system depends on the regulated movement of ions across cell membranes through specialized proteins known as ion channels. In Neuron, both Voltage-gated ion channels and Ligand-gated ion channels play crucial roles in generating and … Read more >>
This article provides a brief overview of the Rabies virus and the disease it causes. The virus is a highly dangerous pathogen belonging to the family Rhabdoviridae. It is responsible for Rabies, a disease that primarily affects mammals and can be transmitted to humans through the bite of infected animals. Although rabies is almost always … Read more >>
This article provides a brief description of coliform bacteria as indicators of water quality and outlines the standard bacteriological techniques used for their detection and enumeration. Water intended for human consumption must meet strict microbiological standards to ensure safety and prevent disease transmission. Coliform bacteria serve as important indicator organisms for evaluating fecal contamination in … Read more >>
In this article, I briefly describe protozoa and their ecological significance. Protozoa are microscopic yet remarkably diverse organisms that occupy nearly every habitat on Earth. Despite their small size, they play a profound role in maintaining ecological balance and influencing both environmental processes and human health. The Widespread World of Protozoa Protozoa inhabit nearly all … Read more >>
In this article, I briefly describe how viruses cause different types of cancer. This disease has long been viewed primarily as a genetic disease driven by mutations within cells. However, growing scientific evidence has revealed that certain viruses play a crucial role in initiating and promoting malignant transformation. These oncogenic viruses interfere with normal cellular … Read more >>
In this article, I briefly describe the generation of peripheral tolerance. It refers to the mechanisms that regulate self-reactive lymphocytes after they leave the primary lymphoid organs. It ensures that immune responses against the body’s own tissues are prevented through processes such as anergy, suppression by regulatory cells, and controlled antigen presentation. These mechanisms help … Read more >>
In this article, I briefly describe the central tolerance in primary lymphoid organs. Central tolerance is a fundamental immunological mechanism that ensures self-tolerance by regulating lymphocyte development. It is established within primary lymphoid organs, where self-reactive T and B lymphocytes are eliminated, modified, or redirected into regulatory pathways. This process is essential for maintaining immune … Read more >>
In this article, I briefly describe the role of Fc receptors in antibody effector functions. Fc receptors (FcRs) are specialized cell-surface receptors that bind to the Fc region of antibodies and link humoral immunity with cellular immune responses. By interacting with different antibody classes, FcRs regulate key immune functions, such as phagocytosis, cytotoxicity, inflammation, and … Read more >>