Gum Disease Could Drive Alzheimer’s: Study
Gum Disease Could Drive Alzheimer’s: Study
An enzyme of the bacteria Porphyromonas gingivalis has been found in the brains of patients with the disorder, and causes neurodegeneration in mice.
Gum Disease Could Drive Alzheimer’s: Study
Gum Disease Could Drive Alzheimer’s: Study

An enzyme of the bacteria Porphyromonas gingivalis has been found in the brains of patients with the disorder, and causes neurodegeneration in mice.

An enzyme of the bacteria Porphyromonas gingivalis has been found in the brains of patients with the disorder, and causes neurodegeneration in mice.

cell & molecular biology
Blood Vessels Grown in a Petri Dish Closely Resemble Human Ones
Blood Vessels Grown in a Petri Dish Closely Resemble Human Ones
Catherine Offord | Jan 18, 2019
The lab-made organoids are fully functional, the team reports, and could aid the study of vascular-related diseases such as diabetes.
A New Role for Yeast Introns: Helping Cells Cope Under Stress
A New Role for Yeast Introns: Helping Cells Cope Under Stress
Katarina Zimmer | Jan 16, 2019
Two studies contest the idea that the noncoding sequences are just “junk DNA,” demonstrating that they play important roles in the regulation of cell growth.
Exosomes Linked to Cancer Spread from Chemoresistant Tumors in Mice
Exosomes Linked to Cancer Spread from Chemoresistant Tumors in Mice
Carolyn Wilke | Jan 10, 2019
The vesicles promote metastasis after chemotherapy, but the authors say the results shouldn’t alarm patients and may point to ways to improve treatments.
Researchers Engineer Epigenome Editors to Study How Gene Expression Affects Disease
Researchers Engineer Epigenome Editors to Study How Gene Expression Affects Disease
Ashley Yeager | Jan 1, 2019
Using CRISPR and other tools, scientists are modifying DNA methylation, histone marks, and other modifiers of gene expression to understand how they affect health and disease.
Prenatal Exposure to Cannabis Affects the Developing Brain
Prenatal Exposure to Cannabis Affects the Developing Brain
Andrew Scheyer | Jan 1, 2019
Children born to moms who smoked or ingested marijuana during pregnancy suffer higher rates of depression, hyperactivity, and inattention.
Those We Lost in 2018
Those We Lost in 2018
Ashley Yeager | Dec 26, 2018
The scientific community said goodbye to a number of leading researchers this year.
<em>The Scientist</em>&rsquo;s Most Stunning Infographics of 2018<em>The Scientist</em>&rsquo;s Most Stunning Infographics of 2018
The Scientist’s Most Stunning Infographics of 2018
Jef Akst | Dec 21, 2018
From cellular self-digestion to the effects of exercise on the brain, our features editor picks her favorite art custom-made for the magazine.
Image of the Day: Shoots Up
Image of the Day: Shoots Up
Ashley Yeager | Dec 14, 2018
During plants’ cell division, mother cells give daughter cells a signal to show them which way is up.
Researchers Identify Irisin&rsquo;s Receptor in Bone and Fat
Researchers Identify Irisin’s Receptor in Bone and Fat
Carolyn Wilke | Dec 13, 2018
They hope to develop the “exercise hormone” into therapeutics that harness the benefits of exercise for people unable to do so.