Biological regulation

Category archives for Biological regulation

When Dr. Jakub Abramson was a 14-year-old boy in the former Czechoslovakia, he asked his father what was the best place to do science. His father took the question seriously and, after some consideration, answered “the Weizmann Institute of Science.” Since that day, says Abramson, he knew he was bound for the Institute. “It’s just…

What is a breakthrough in cancer research? It is a new piece of a puzzle made up of a million pieces. It may, however, be a piece that allows a picture to start emerging – one that lets us see the shape of the next piece needed to fill in more of the puzzle, or…

Best Image Today

Here is today’s scientific image: This delicate, fluffy object is a cytoskeleton viewed under a fluorescence confocal microscope. Below is a time-lape video of the process. For an explanation of why the cell’s actin fibers twist around into this shape, go to our website. Indeed, all three of today’s new articles involve crucial cellular dynamics:…

Foreigner or native-born? Your immune system discriminates between them, as do those of bacteria. Yes indeed, bacteria do have immune systems – pretty complex ones at that. And like any useful immune system, the bacterial ones must have a good technique for distinguishing “foreign” from “self.” You may even have heard of the bacterial immune…

Dr. Gabriele D’Uva is finishing up his postdoctoral research at the Weizmann Institute. Here is his account of three years of highly successful research on regenerating heart cells after injury. Among other things, it is the story of the way that different ideas from vastly different research areas can, over the dinner table or in…

The Poetry of Science IV

With a skull and Keats, there was little choice but to write about the new online items in rhyme. So with apologies to Shakespeare, Keats and the scientists, as well as the people at SpaceIL, here are today’s grab bag of poems. As usual, follow the links.       On a Lone Cranium Alas…

Getting the Whole Picture

What’s in a picture? Prof. Benny Shilo knows the value of a good picture. We recently mentioned his book: Life’s Blueprint, which uses photographs of things like bread dough and yeast cells to illustrate the process of biological development. Here is the image from the most recent piece we have uploaded on his research: This…

Life’s Blueprint

A new book will make you stop and think about the relationship between the microscopic world and the one we pass by every day. Life’s Blueprint – The Science and Art of Embryo Creation; Benny Shilo, Yale University Press, 174 pages. When a stem cell divides, one daughter maintains the stem cell fate while the…

To all bits of clockwork that are adjusted in our bodies according to our day-night timetable, we can now add two more: cancer growth and the schedules of our internal complements of bacteria. Cancer, according to a new Weizmann Institute study, may grow and spread more at night. In this scenario, our cells are getting…

Could artificial sweeteners be helping cause the very thing they are supposed to prevent? They may well do so, and you can probably blame your microbiota – those masses of mostly-friendly bacteria that live in your gut. According to a paper by Weizmann Institute scientists that appeared today in Nature, artificial sweeteners not only encourage…