Showing posts with label research. Show all posts
Showing posts with label research. Show all posts

February 12, 2009

Cotton Candy Used to Grow Tissue

It is found that the sweet treat cotton candy can be used to help scientists grow replacement tissues for people who need it. It can also be used in creating networks of blood vessels in laboratory-grown bone, skin, muscles, or fat for breast reconstruction.

The process would work by first putting a thick liquid chemical over a wad of cotton candy. The liquid would then solidify into a chunk. The chunk would be placed into warm water to dissolve the candy. Tiny channels will then be left where the strands of candy used to be. These channels would be lined with cells to make artificial blood vessels. The solid chunk would be seeded with immature cells of whatever tissue that is meant to be made. The block would be biodegradable and would eventually be replaced by growing tissue as it disappears. In the end you would get a piece of tissue permeated with tiny blood vessels.

Researchers are testing this method and have used rat blood to run through the channels to test it. Eventually, they plan to use something other than cotton candy as the research progresses.

November 14, 2008

Same-Sex Heart Transplants Found to be Better

A new research has found that heart transplant patients have better chances of survival and lower risk of the body rejecting the organ if they get organs from donors of the same sex as them. This may be due to the fact that men's hearts are usually bigger than a woman's heart and have a greater pumping capacity. Differences in hormones and immune systems between men and women could also play a part.

October 24, 2008

Scientists Developing Foods To Help You Lose Weight

At the Institute of Food Research in Norwich, England, foods are being developed that would help a person lose weight by slowing down the digestive system and triggering a signal to the brain to suppress appetite. It would control appetite by tricking the brain into thinking that you have eaten too much when you actually haven’t. The products could possibly be sold on the market in a few years.

Scientists at the University of Newcastle are testing a seaweed extract called alginate that would reduce fat absorption by cutting the level of glucose that is digested by the body before it is broken down in the large intestine. In taste testings done with several dozen people, it is found that most people felt that the foods enhanced by alginate tasted as good or even better.

Scientists in North America and Europe are developing products to control appetite, such as chemical injections and implantable devices that would interfere with the digestive system. It is not certain if appetite controlling foods could cure all cases of obesity.

July 25, 2008

Exercise Encourages Wellness

A recent research has shown that a single 20 minute exercise session each week can reduce stress, decrease anxiety, and increase happiness and energy levels. Researchers have also found that almost any type of physical activity, including housework, yard work, and brisk walking could help to decrease levels of mental distress.

May 28, 2008

Smoking Can Cause Acne

Researchers from the San Gallicano Dermatological Institute in Rome found that cigarettes can cause acne as well as cause dull and wrinkled skin. They found that noninflammatory acne affected eight times more smokers than nonsmokers. Most of the nonsmokers that had acne lived or worked in environments with heavy smoke. Cigarette smoke can cause skin cells, called keratinocytes, to proliferate and clog pores.

March 6, 2008

Study Says Unpopular Girls Tend to Gain More Weight

It is found that unpopular girls and girls that are low on the social ladder are more likely to gain weight during their adolescent years. Harvard University researchers did a study on 4,500 junior high and high school girls and found that the girls who felt like they weren’t well liked gained more weight than the more popular girls. The unpopular girls were 70 percent more likely to gain more than 11 excess pounds over a two year period.