The study done in mice identified independent circadian clocks operating through the body, independent of the brain:
The studies, published today in the journal Cell, used specially bred mice to analyze the network of internal clocks that regulate metabolism. Although researchers had suspected that the body’s various circadian clocks could operate independently from the central clock in the hypothalamus of the brain, there was previously no way to test the theory, said Paolo Sassone-Corsi, director of UCI’s Center for Epigenetics and Metabolism and senior author of one of the studies.
To overcome that obstacle, scientists figured out how to disable the entire circadian system of the mice, then jump-start individual clocks. For the experiments reported in the Cell papers, they activated clocks inside the liver or skin.
“The results were quite surprising,” said Sassone-Corsi, Donald Bren Professor of Biological Chemistry. “No one realized that the liver or skin could be so directly affected by light.”
For example, despite the shutdown of all other body clocks, including the central brain clock, the liver knew what time it was, responded to light changes as day shifted to night and maintained critical functions, such as preparing to digest food at mealtime and converting glucose to energy.University of California Irvine, “Body parts respond to day and night independently from brain, studies show” at Medical XPress
Knowing more about internal clocks may help with diagnostics.
Just think, all those little clocks just built themselves up from nothing, even though there is no pre-existing intelligence in nature – in a world where we take for granted that spontaneous generation never occurs … 😉
Hat tip: Philip Cunningham
See also: Before you go: DNA uses “climbers’ ropes method” to keep tangles at bay It all just swished into place among unthinking cells billions of yours ago. Otherwise we wouldn’t be here. Go tell it on the mountain.
DNA as a laster of resource recycling
The amazing energy efficiency of cells: A science writer compares the cell to human inventions and finds that it is indeed amazingly energy-efficient.
In addition to DNA, our cells have an instruction language written in sugar Of course it all just tumbled into existence and “natural selection” somehow organized everything. As if.
Cells find optimal solutions. Not just good ones.
Researchers build “public library” to help understand photosynthesis
Wait. “The part of the plant responsible for photosynthesis is like a complex machine made up of many parts, … ” And machines just happen all by themselves, right? There is no information load to account for; it just evolved by natural selection acting on random mutation the way your Android did!
In Nature: Cells have “secret conversations” We say this a lot: That’s a lot of information to have simply come into being by natural selection acting on random mutation (Darwinism). It’s getting not only ridiculous but obviously ridiculous.
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Researchers: Helpful gut microbes send messages to their hosts If the strategy is clearly identified, they should look for non-helpful microbes that have found a way to copy it (horizontal gene transfer?)
Cells and proteins use sugars to talk to one another Cells are like Neanderthal man. They get smarter every time we run into them. And just think, it all just tumbled into existence by natural selection acting on random mutations (Darwinism) too…
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“Interspecies communication” strategy between gut bacteria and mammalian hosts’ genes described
Researchers: Cells Have A Repair Crew That Fixes Local Leaks
Researchers: How The Immune System “Thinks”
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Researcher: Mathematics Sheds Light On “Unfathomably Complex” Cellular Thinking
How do cells in the body know where they are supposed to be?
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