Petri Dish News and Research

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Pheromones identified that trigger aggression between male mice

A family of proteins commonly found in mouse urine is able to trigger fighting between male mice, a study in the Dec. 6, 2007, issue of Nature has found.

5 Dec 2007

Micro Petri dish allows unprecedented miniaturisation of the growth of micro-organisms

Scientists of Top Institute Food & Nutrition, Wageningen University and Research Centre, NIZO food research and the MESA+ Institute for Nanotechnology in the Netherlands have developed a new technology that allows unprecedented miniaturisation of the growth of micro-organisms.

13 Nov 2007

How clean are biometric devices?

While biometric equipment is gaining popularity in a variety of applications, such as ensuring secure access to buildings, industries are finding that many users believe the devices are unsanitary and a potential source of germs that could cause illness.

10 Oct 2007

New targeted approach to pain management

Imagine an epidural or a shot of Novocain that doesn't paralyze your legs or make you numb, yet totally blocks your pain.

4 Oct 2007

Cell growth technology promises more successful drug development

Scientists have developed unique technology to grow stem cells and other tissue in the laboratory in conditions similar to the way they grow in the human body.

20 Sep 2007

3-D Petri dish that grows cells in three dimensions

A team of Brown University biomedical engineers has invented a 3-D Petri dish that can grow cells in three dimensions, a method that promises to quickly and cheaply produce more realistic cells for drug development and tissue transplantation.

20 Sep 2007

New Rensselaer tools speed stem cell research

Engineers at Rensselaer Polytechnic Institute have developed tools to help solve two of the main problems slowing the progress of stem cell research - how to quickly test stem cell response to different drugs or genes, and how to create a large supply of healthy, viable stem cells to study from only a few available cells.

13 Sep 2007

Animal model for dengue research

A mosquito-borne disease often known as "break-bone fever" has found a new enemy in a unique type of mouse.

28 Aug 2007

Scientists discover how HIV/AIDS disrupts the normal replication of stem cells in the adult brain

A prominent problem in AIDS is a form of dementia that robs one's ability to concentrate and perform normal movements.

17 Aug 2007

New cancer stem cells could aid breast cancer research

In some ways, certain tumors resemble bee colonies, says pathologist Tan Ince. Each cancer cell in the tumor plays a specific role, and just a fraction of the cells serve as "queens," possessing the unique ability to maintain themselves in an unspecialized state and seed new tumors. These cells can also divide and produce the "worker" cells that form the bulk of the tumor.

13 Aug 2007

Heart patches that stimulate regeneration

When human hearts are injured, as during a heart attack, healthy tissue normally can't regrow.

18 Jul 2007

Young girls have eggs extracted before chemo to protect fertility

Israeli fertility experts have extracted and frozen eggs from girls as young as five about to undergo chemotherapy and frozen them so they can be used later to start a family.

3 Jul 2007

Culture techniques can significantly affect cell growth and function

When it comes to growing cells in a lab, technique matters. A new Brown University study shows that nerve cells grown in three-dimensional cultures use 1,766 genes differently compared to nerve cells grown in standard two-dimensional petri dishes.

17 May 2007

Scientists discover master switches for adult blood stem cells

Johns Hopkins Kimmel Cancer Center scientists have found a set of "master switches" that keep adult blood-forming stem cells in their primitive state.

8 Feb 2007

Single transcription factor GABP a major player in cell growth

When cells go about the business of dividing, they can get sidelined. Maybe there aren't enough nutrients. Maybe there aren't the right signals to resume multiplying. Either way, cells go quiet.

7 Feb 2007

Stem cells grown into brain cells on a new 3D scaffold of tiny protein fragments

An MIT engineer and Italian colleagues will report the invention-which may one day replace the ubiquitous Petri dish for growing cells-in PLoS ONE.

2 Jan 2007

Cocktail of two drugs heals damaged hearts

A cocktail of drugs has been found in trials with animals to heal damaged heart muscle.

10 Oct 2006

Induction of potent antitumor immunity by intratumoral injection of IL-23 transduced dendritic cells

One therapy for treating brain tumors alerts the immune system to the presence of foreign material. A second therapy enhances the first and prolongs the immune system's response.

4 Sep 2006

Interleukin 21 may enhance the effectiveness of Herceptin

Preliminary research suggests that a drug that targets a particular type of breast cancer might be more effective if patients are also given a substance made by the body that stimulates certain immune cells.

6 Aug 2006

Researchers identify how molecules of microRNA are responsible for the growth of blood vessels in a model for human colon cancer

The process, called angiogenesis, results in ability of ravenous cancer cells to recruit blood vessels and receive a steady supply of nutrients and oxygen.

4 Aug 2006