News tagged with cells

Related topics: protein · cancer cells · cancer · stem cells · immune system

More individual therapy for blood cancer patients

Because it is impossible to predict which acute myeloid leukaemia (AML) patients will benefit, all patients are routinely treated with chemotherapy although only some will respond to the treatment. Researchers from Goethe-University ...

Jan 10, 2017
popularity1 comments 0

Neurons modulate the growth of blood vessels

A team of researchers at Karlsruhe Institute of Technology (KIT) shake at the foundations of a dogma of cell biology. By detailed series of experiments, they proved that blood vessel growth is modulated by neurons and not, ...

Jan 10, 2017
popularity36 comments 0

Transfusions of 'old' blood may harm some patients

The oldest blood available for transfusions releases large and potentially harmful amounts of iron into patients' bloodstreams, a new study by researchers at Columbia University Medical Center (CUMC) has found.

Jan 09, 2017
popularity2 comments 0

Why high-dose vitamin C kills cancer cells

Vitamin C has a patchy history as a cancer therapy, but researchers at the University of Iowa believe that is because it has often been used in a way that guarantees failure.

Jan 09, 2017
popularity371 comments 0

Cell (biology)

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

Subscribe to rss feed