A new study shows how neurochemicals affect fMRI readings
The brain is an incredibly complex and active organ that uses electricity and chemicals to transmit and receive signals between its sub-regions.
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The brain is an incredibly complex and active organ that uses electricity and chemicals to transmit and receive signals between its sub-regions.
6 hours ago
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The life and death of cells are governed by processes that—when disrupted—can lead to cancer. Apoptosis, the process of programmed cell death, is tightly regulated by the B-cell lymphoma-2 (BCL-2) family of proteins. ...
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Researchers at the Institute of Human Virology (IHV) at the University of Maryland School of Medicine have published a new study in the Journal of Infectious Diseases investigating the antibody response following SARS-CoV-2 ...
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A team from the University of Ottawa's Faculty of Medicine has completed a new study that reveals the inner workings of gene mutations that result in an ultra-rare syndrome with fewer than 100 reported cases since its first ...
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A new research paper was published in Oncotarget entitled, "G-quadruplex landscape and its regulation revealed by a new antibody capture method."
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Fatty liver, which can lead to liver damage and disease, can occur from both overeating and starvation. Now, new research shows how naturally starvation-resistant cavefish, unlike other animals, are able to protect their ...
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A research team led by CiRA Professor Junya Toguchida in collaboration with Assistant Professor Yonghui Jin and graduated student Liping Sun at the Institute for Life and Medical Sciences, Kyoto University, has identified ...
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The increasing prevalence of diabetes worldwide has led to a rise in diabetic wounds, such as diabetic foot ulcers, which are challenging to treat and can result in amputation. Traditional treatments have limited effectiveness, ...
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Retear and failure to heal are significant post-operative complications in rotator cuff repair surgery despite the use of commercially available rotator cuff repair grafts. Advances in tissue engineering have demonstrated ...
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Researchers at Weill Cornell Medicine have performed the most comprehensive analysis to date of cancer of the ureters or the urine-collection cavities in the kidney, known as upper tract urothelial carcinoma (UTUC). The study, ...
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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