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Evolutionary geneticists reveal that disease genes emerged very early in evolutionary history. They have systematically analyzed the time of emergence for a large number of genes -- genes which can also initiate diseases.

A new study suggests a possible role for nicotine in breast tumor development and metastases.

Chicken soup, that popular home remedy for the common cold sometimes known as "Grandma's Penicillin," may have a new role alongside medication and other medical measures in fighting high blood pressure, scientists in Japan are reporting.

Table sugar and high-fructose corn syrup are about 50% fructose and these ingredients have become increasingly common in many foods and beverages. Eating too much fructose can induce leptin resistance, a condition that can easily lead to becoming overweight when combined with a high-fat, high-calorie diet, according to a new study with rats. This is the first study to show that leptin resistance can develop as a result of high fructose consumption and that leptin resistance can develop silently, that is, with little indication that it is happening.

Researchers in Sweden are compiling a remarkable "atlas" that pinpoints the location of thousands of individual proteins in the body's tissues and cells which will give scientists important insights into the function of different proteins and how changes in the distribution of proteins could be reflected in diseases such as cancer.

Imaging study follows on previous lesion studies to pinpoint regions of brain involved in risk management: finds that individuals' response to risk and reward can be gauged from activity in two distinct brain regions.