Neuroscience

Expression pattern of key receptors in the hypothalamus revealed

There is growing evidence that peptide hormones from the gut have far-reaching effects on the whole organism. By binding to corresponding receptors in the brain, they can modulate food intake and alter metabolic parameters. ...

Immunology

Tracking lung macrophages with lipophilic fluorescent dyes

Pulmonary macrophages are a heterogeneous population of immune cells that patrol the lungs, ingesting particulates and microbes, and activating inflammation when necessary. During homeostasis, two main subsets of macrophages ...

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Homeostasis

Homeostasis (from Greek: ὅμοιος, hómoios, "similar" and στάσις, stásis, "standing still";) is the property of a system that regulates its internal environment and tends to maintain a stable, constant condition of properties like temperature or pH. It can be either an open or closed system.

It was defined by Claude Bernard and later by Walter Bradford Cannon in 1926, 1929 and 1932)

Typically used to refer to a living organism, the concept came from that of milieu interieur that was created by Claude Bernard and published in 1865. Multiple dynamic equilibrium adjustment and regulation mechanisms make homeostasis possible.

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