It’s Friday night and you are at a concert, wishing you hadn’t woken up at 4:45am to go to spin class. As the night wears on you get more tired and fall asleep on the train ride home. Why do you get tired the longer you stay awake? It’s not your muscles-- they could keep … Continue reading Too much phosphorylation, time to go to sleep!
Cellways, it's been awhile! Here are a couple of videos I made in the last years:A Ted-Ed video about X-chromosome inactivation and some interesting consequences of that. A Science Sketches video about the basics of stem cell biology.
Parkinson disease (PD) is a neurodegenerative disease characterized by motor deficits and aggregates of a protein called α-synuclein (α-syn) in the brain (pronounced sin-NU-clee-in). Genetics plays a role in PD, because there are some early-onset forms of PD that are caused by mutations in α-syn that cause it to more readily clump together and form … Continue reading Microbiome accelerates neurodegeneration
Spoken language conveys meaning in two ways: the meaning of the words (semantics or lexical knowledge) and the intonation that the speaker uses. We can sense questions by the rising pitch at the end of the sentence. Likewise, we can tell if someone is upset or being sarcastic based on how they say the words. … Continue reading Human language in dog brains
The Y-chromosome is one of the smallest chromosomes in the human genome and contains genes involved in male development and production of sperm. Previous research has shown that just two genes on the Y chromosome are necessary to make male mice who can sort of produce sperm. By “sort of” I mean that the mice … Continue reading No Y genes? No problem.
Pandas are closely related to carnivorous mammals (like all the other bears), but they consume mostly bamboo. Their digestive tracts are short and adapted for digesting meat, not cellulose that is found in plants. In fact, they only digest about 20% of all the bamboo they eat, and they eat a lot of bamboo (30-60 … Continue reading Pandas are lazy!
We have all heard that the sequence of human DNA differs from chimpanzee DNA by only about 1%. Yet humans are capable of building complex civilizations while the chimps are still eating bugs in the forest. If you compare the human brain to the brain of any other primate, it’s easy to see where our … Continue reading Bigger brains with Frizzled HARE