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Lalita Krish.,
Lalita Krish., • 1 year ago

Clumps of Neurons Help Scientists Study Gut Disorders: Scientific American These neurospheres—free-floating balls of glia (red), neurons (green) and stem cells—were cultivated in a lab from stem cells taken from the intestine or stomach of a mouse. Researchers use the neurospheres to test treatments for gut motility disorders, in which portions of the intestine, sometimes referred to as the second brain, lack sufficient nerve cells to function properly.

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✯ Nerve cells and glial cells, coloured scanning electron micrograph (SEM). The nerve cells have small cell bodies (orange) and fine extensions called axons and dendrites (brown). The glial cells have large cell bodies (blue) with thicker extensions (pale green). Neurons are responsible for passing information around the central nervous system (CNS) and from the CNS to the rest of the body. Glial cells are nervous system cells that provide the neurons with structural support and protection-PI...

✯ Nerve cells. Coloured scanning electron micrograph (SEM) of nerve cells, showing cell bodies (pink) and extensions called axons and dendrites (purple). Neurons are responsible for passing information around the central nervous system (CNS) and from the CNS to the rest of the body.✯

Bone marrow stem cell, SEM

Breast cancer cells

Neuron cell body (purple) with numerous synapses (blue). Communication from one neuron flows to another neuron across a synapse, the small gap separating neurons. SEM X80,000.

Human embryonic stem cells differentiating into RPE precursors cells of the retina. Nuclei are in blue. Pink indicates the presence of Pax6, a protein found in retinal tissue. The retinal pigment epithelium is the tissue responsible for macular degeneration, the most common cause of blindness. | This photo was taken by David Buchholz in the lab of Dennis Clegg at the University of California, Santa Barbara.

Light micrograph of synapses between a motor neurone (tree-like) & skeletal muscle cells (bands in background). The end of the axon (large fibre) of a motor neurone in contact with a muscle cell divides into branches, each one terminating in a motor end plate on a different muscle fibre.

"Leprosy bacteria use 'biological alchemy'-Infectious bacteria have for the first time been caught performing "biological alchemy" to transform parts of a host body into those more suited to their purposes...The study...showed leprosy-causing bacteria turning nerves into stem cells and muscle...Prof Chris Mason, a specialist in stem cell research at University College London, said: "The ability of bacteria to convert one mammalian cell type to another is 'alchemy' by nature on a grand scale..."

2003: Filamentous actin and microtubules (structural proteins) in mouse fibroblasts (cells) (1000x), Fluorescence. / Torsten Wittmann, The Scripps Research Institute. Courtesy of Nikon Small World. The 2003 runners up.