Unraveling Brain Tumors: Molecular Biologists Devise Strategy To Starve Brain Tumors

Brain tumor researchers have found that brain tumors arise from cancer stem cells living within tiny protective areas formed by blood vessels in the brain. Killing those cells is a promising strategy to eliminate tumors and prevents them from re-growing. The researchers have found that drugs that block new blood vessel formation can destroy the protected areas and stop cancer from developing.

Μαζί με τα φάρμακα, δώρο κι ένα hands-free...

Περισσότερες πληροφορίες: http://www.sciencedaily.com/videos/2007/0910-unraveling_brain_tumors.htm

Cancer-killing Viruses Influence Tumor Blood-vessel Growth

Viruses genetically designed to kill cancer cells offer a promising strategy for treating incurable brain tumors such as glioblastoma, but the body's natural defenses often eliminate the viruses before they can eliminate the tumor.

Προσεκτικά ρε....

Περισσότερες πληροφορίες: http://www.sciencedaily.com/releases/2008/06/080610180356.htm

Key Regulator Of DNA Mutations Identified

As a general rule, your DNA is not something you want rearranged. But there are exceptions – especially when it comes to fighting infections. Since the number of microbes in the world far surpasses the amount of human DNA dedicated to combat them, specialized cells in the immune system have adopted an ingenious, if potentially disastrous, strategy for making antibodies. These cells, called B lymphocytes, intentionally mutate their own DNA to ward off invaders they have never seen before.

Αν τα Β-λεμφοκύτταρα ήταν άνθρωποι, θα ήταν χρηματιστές...

Περισσότερες πληροφορίες: http://www.sciencedaily.com/releases/2008/06/080612075846.htm

What's Mine Is Mine: Brain Scans Reveal What's Behind The Aversion To Loss Of Possessions

Did you ever wonder why it is so difficult to part with your stuff? A new study reveals fascinating insights into the specific neuropsychological mechanisms that are linked with the potential loss of possessions. The research, published by Cell Press in the June 12 issue of the journal Neuron, has important implications for both neuroscience and economics and may even explain why you are reluctant to sell your iPod.

Να συμβαίνει και με τις γκόμενες άραγε;

Περισσότερες πληροφορίες: http://www.sciencedaily.com/releases/2008/06/080611135128.htm

Global Warming Could Release Trillions Of Pounds Of Carbon Annually From East Siberia's Vast Frozen Soils

East Siberia's permafrost contains about 500 Gigatons (1100 trillion pounds) of frozen carbon deposits that are highly susceptible to disturbances as the climate warms.

Ντα, ντα...

Περισσότερες πληροφορίες: http://www.sciencedaily.com/releases/2008/06/080611154839.htm

Researchers Build Model Protocell Capable of Copying DNA

Four billion years ago, modern cells were absent on our still-young planet. The simple protocells that are thought to have given rise to Earth's earliest life forms were plentiful, but likely no more than a bit of genetic material surrounded by a hollow membrane.Scientists have now created model protocells in the lab and demonstrated how they might have taken up the nutrients that propelled their growth. Howard Hughes Medical Institute (HHMI) investigator Jack Szostak and his research group fabricated DNA containing vesicles in the lab and showed that nutrients could enter the model protocell. Once inside, the nutrients assembled into a copy of the protocell's genetic material—an essential step in the origin of life.

Κι εγώ που νόμιζα μικρός ότι κάτι τέτοιο φτιάχνεται μόνο από προϋπάρχον παϊδάκι...

Περισσότερες πληροφορίες:
http://www.hhmi.org/news/szostak20080604.html

Drinking Tap Water Disinfected With Chlorine May Harm Fetus, Study Suggests

Drinking water disinfected by chlorine while pregnant may increase the risk of having children with heart problems, cleft palate or major brain defects, according to a study published in BioMed Central's open access journal Environmental Health.

Τι σού 'κανα και πίνεις....

Περισσότερες πληροφορίες:
http://www.sciencedaily.com/releases/2008/06/080602103343.htm

Microbial Communities Affect Human Health?

The number of bacteria living within the body of the average healthy adult human are estimated to outnumber human cells 10 to 1. Changes in these microbial communities may be responsible for digestive disorders, skin diseases, gum disease and even obesity. Despite their vital imporance in human health and disease, these communities residing within us remain largely unstudied and a concerted research effort needs to be made to better understand them, say researchers June 3 at the 108th General Meeting of the American Society for Microbiology in Boston.


Σαν πολλοί δεν είμαι;

Περισσότερες πληροφορίες:
http://www.sciencedaily.com/releases/2008/06/080603085914.htm

Monkey Genetics: Transgenic Rhesus With Huntington Disease

Scientists at the Yerkes National Primate Research Center in Atlanta, Georgia, have developed a primate model of Huntington disease. Researchers led by Anthony Chan claim that “a transgenic HD monkey model may open the way to understanding the underlying biology of HD better, and to the development of potential therapies.” The research is published in the May 18 Nature online.

Κάτι είναι κι αυτό.....

Περισσότερες πληροφορίες:
http://www.alzforum.org/new/detail.asp?id=1828

Neural Cell Transplants May Help Those With Parkinson's Disease

Τhe current issue of CELL TRANSPLANTATION (Vol. 17:4) features a number of publications by researchers seeking new ways to treat Parkinson's disease (PD), a neurological disease characterized by muscle rigidity, tremor and slowed physical movements related to insufficient levels of dopamine (DA) in the basal ganglia of the brain, by using primate models to examine the potential therapy role of transplanted cells.

Αυτά τουλάχιστον ζουν ή θα έχουμε μία από τα ίδια;

Περισσότερες πληροφορίες:
http://www.sciencedaily.com/releases/2008/05/080519083013.htm

First Evidence Of Native Dendritic Cells In Brain Surprises Scientists

In a finding that has the potential to change the way researchers think about the brain, scientists at Rockefeller University have found dendritic cells where they’ve never been seen before: among this organ’s neurons and connective cells. The immunity-directing dendritic cell had previously been seen in the human nervous system only after brain injury or disease. But the new study shows for the first time that the brain has its own, resident population of dendritic cells that may serve as a line of defense against pathogens that sneak past the blood-brain barrier.

Δεν θυμάμαι και κάτι να ισχύει στα σίγουρα για τον εγκέφαλο. Ότι ξέραμε σιγά-σιγά καταρρίπτεται...

Περισσότερες πληροφορίες:
http://www.sciencedaily.com/releases/2008/05/080519103818.htm

Exploring The Mechanics Of Judgment, Beliefs: Technique Images Brain Activity When We Think Of Others

How do we know what other people are thinking? How do we judge them, and what happens in our brains when we do?

Τι να γίνεται επίσης στον καθένα όταν κάποιος από τους εμπλεκόμενους προσποιείται ότι σκέφτεται; (οι πολιτικοί θα ήταν το τελειο πειραματικό υλικό...)

Περισσότερες πληροφορίες:
http://www.sciencedaily.com/releases/2008/05/080515212112.htm

Molecular 'Clock' Could Predict Risk For Developing Breast Cancer

A chemical reaction in genes that control breast cancer provides a molecular clock that could one day help researchers more accurately determine a woman's risk for developing breast cancer and provide a new approach for treatment, UT Southwestern Medical Center researchers have found.

Τικ, τακ, τικ, τακ...

Περισσότερες πληροφορίες:
http://www.sciencedaily.com/releases/2008/05/080514064933.htm

'Mitochondrial Eve' Research: Humanity Was Genetically Divided For 100,000 Years

The human race was divided into two separate groups within Africa for as much as half of its existence, says a Tel Aviv University mathematician. Climate change, reduction in populations and harsh conditions may have caused and maintained the separation.

Όχι ρε παιδιά, τους έφτιαξε ο Θεός...

Περισσότερες πληροφορίες:
http://www.sciencedaily.com/releases/2008/05/080515154635.htm

New Map Reveals Dynamic Variation in Human Genome

A team of researchers led by Howard Hughes Medical Institute investigator Evan E. Eichler at the University of Washington has produced the first high-resolution map showing the structural variation that exists in the human genome. With the map, researchers can now begin to see how the underlying structure of one person's genome differs from that of another.

Αφού στηρίχθηκαν στα δεδομένα του Human genome project, σωθήκανε....

Περισσότερες πληροφορίες:
http://www.hhmi.org/news/eichler20080501.html

Researchers Launch Online Protein Folding Game

Multiplayer online gaming brings to mind fabulously successful titles, such as “World of Warcraft” and “Ultima.” On May 8, Howard Hughes Medical Institute (HHMI) researchers at the University of Washington are bringing the arcane world of protein folding to the online gaming arena with the launch of “Foldit,” a free game in which players around the world compete to design proteins. The real world benefit: Scientists will test proteins designed by the game's players to see if they make viable candidate compounds for new drugs.

Users can access the game via the web at www.fold.it

Περισσότερες πληροφορίες:
http://www.hhmi.org/news/foldit20080508.html

Discovery Of Cell Linked To Learning And Memory

Queensland Brain Institute (QBI) neuroscientists at The University of Queensland have discovered a fundamental component of the process that regulates memory formation.

Τώρα γιατί εγώ νομίζω ότι συμβαίνει και σε άλλες περιοχές; θα μπορούσα να προτείνω αρκετές μου φαίνεται...

Περισσότερες πληροφορίες:
http://www.sciencedaily.com/releases/2008/05/080514101157.htm

Scientists Discover Small RNAs That Regulate Gene Expression And Protect The Genome

RNA is best known as a working copy of the DNA sequence of genes. In this role, it's a carrier of the genes' instructions to the cell, which manufactures proteins according to information in the RNA molecule.

Λες και δεν τό'ξερα: το τίποτε ποτέ δεν υπάρχει... Τόσο απλά...

Περισσότερες πληροφορίες:
http://www.sciencedaily.com/releases/2008/05/080513153947.htm

When It Comes To Living Longer, It's Better To Go Hungry Than Go Running, Mouse Study Suggests

A study investigating aging in mice has found that hormonal changes that occur when mice eat significantly less may help explain an already established phenomenon: a low calorie diet can extend the lifespan of rodents, a benefit that even regular exercise does not achieve.

Και μην αναρωτηθεί κάποιος τι θα γινόταν αν η άσκηση συνδυαζόταν με αφαγία...

Περισσότερες πληροφορίες:
http://www.sciencedaily.com/releases/2008/05/080514064921.htm

First Conclusive Evidence Of Alzheimer's-like Brain Tangles In Nonhuman Primates Found

Researchers at the Yerkes National Primate Research Center, Emory University, have discovered the first conclusive evidence of Alzheimer's-like neurofibrillary brain tangles in an aged nonhuman primate. The unprecedented finding has the potential to move the scientific community one step closer to understanding why age-related neurodegenerative diseases, such as Alzheimer's disease, are uniquely human and seem to never fully manifest in other species--including our closest evolutionary relative, the chimpanzee.

Κοντά, πολύ κοντά....

Περισσότερες πληροφορίες:
http://www.sciencedaily.com/releases/2008/05/080514173610.htm

ΕΝΑΡΞΗ!

Νέο ιστολόγιο... Επιστημονικό...
Ασυμμάζευτο...
Και αναγκαστικά σύντομο...
Και πιο αυστηρό, γιατί...
...πρέπει το δάκτυλο να κρατά προτεταμένο...
...να, έτσι, να δείχνει κάτι...

Κι αν τα links δεν δουλεύουν...
Για πρώτη φορά δεν θα ευθύνομαι εγώ!!!

Εύγε... ξανά...