Scientists at UC Riverside have demonstrated a new, RNA-based vaccine strategy that is effective against any strain of a virus and can be used safely even by babies or the immunocompromised.
Apr 15, 2024
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Whether reeling from a sudden stroke or buckling under the sustained assault of Alzheimer's, the brain becomes inflamed, leading to cognitive problems and even death.
Apr 12, 2024
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Four new studies led by Harvard Medical School researchers at Boston Children's Hospital reveal details about how B cells in the immune system churn out antibodies that become increasingly potent and specific after we're ...
Apr 12, 2024
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Important differences in how the nasal cells of young and elderly people respond to the SARS-CoV-2 virus, could explain why children typically experience milder COVID-19 symptoms, finds a new study led by researchers at UCL ...
Apr 15, 2024
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New research from the University of Oklahoma reveals a previously unknown chain of events sparking the development of cancer cachexia, a debilitating muscle-wasting condition that almost always occurs in people diagnosed ...
Apr 12, 2024
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Cancer cells grow and spread by hiding from the body's immune system. Immunotherapy allows the immune system to find and attack hidden cancer cells, helping cancer patients live longer lives. However, many patients get little ...
Apr 16, 2024
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Metformin is a widely prescribed drug for managing type 2 diabetes. In recent years, indications of its potential anticancer properties have emerged in research. A study conducted at the University of Helsinki has found that ...
Apr 12, 2024
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Melanoma is the deadliest form of skin cancer. With global incidence rates rising, new, more effective treatments are necessary to alleviate the health burden of the disease. Important advances in recent years include doctors ...
Apr 12, 2024
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How muscle changes with aging and tries to fight its effects is now better understood at the cellular and molecular level with the first comprehensive atlas of aging muscles in humans.
Apr 15, 2024
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Drug-loaded 3D printed films could change cancer treatments forever as world first research from the University of South Australia shows that new films not only kill more than 80% of liver cancer cells but could also significantly ...
Apr 15, 2024
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The cell is the structural and functional unit of all known living organisms. It is the smallest unit of an organism that is classified as living, and is often called the building block of life. Some organisms, such as most bacteria, are unicellular (consist of a single cell). Other organisms, such as humans, are multicellular. (Humans have an estimated 100 trillion or 1014 cells; a typical cell size is 10 µm; a typical cell mass is 1 nanogram.) The largest known cell is an unfertilized ostrich egg cell.
In 1835 before the final cell theory was developed, a Czech Jan Evangelista Purkyně observed small "granules" while looking at the plant tissue through a microscope. The cell theory, first developed in 1839 by Matthias Jakob Schleiden and Theodor Schwann, states that all organisms are composed of one or more cells. All cells come from preexisting cells. Vital functions of an organism occur within cells, and all cells contain the hereditary information necessary for regulating cell functions and for transmitting information to the next generation of cells.
The word cell comes from the Latin cellula, meaning, a small room. The descriptive name for the smallest living biological structure was chosen by Robert Hooke in a book he published in 1665 when he compared the cork cells he saw through his microscope to the small rooms monks lived in.
This text uses material from Wikipedia, licensed under CC BY-SA
