This week it is your turn to find a current event related to our current unit - cells. Find a news article related cells, organelles, or DNA. Write the name of the article and the author in your post. Paste the link into your comment. And then describe the article and how it relates to what you have learned in this unit.
Here are some sources that you can use to find articles:
SF Gate: http://www.sfgate.com/science/
Science News: http://www.sciencenews.org/
NY Times Science News: http://www.nytimes.com/pages/science/
Popular Science: http://www.popsci.com/
Posts
New genetic blueprint for bloodsuckers
ReplyDeleteGwyneth dickey
http://www.sciencenews.org/view/generic/id/63894/title/New_genetic_blueprint_for_bloodsuckers
In this article it is explaining about the house mosquito and how they have the genetic blueprint for it and how this mosqito have more protien coding genes than the other two main groups of disease-carrying mosquitoes because it has the ability to adapt to different environments and the special genes it produces are for its receptor antennas to help then find their next victim
The title is called, Organelle. The author is, Bruce Alberts...
ReplyDeletehttp://en.wikipedia.org/wiki/Organelle
I decided this post because we are in the study of Organelles, blood cells (DNA), and how how certain things can link to one another. This specific article shares a good amount and detail of information about organelles, that can be brought to great use. (it even shows a diagram!)
A cellular secret to long
ReplyDeletehttp://www.sciencenews.org/view/generic/id/63244/title/A_cellular_secret_to_long_life
This article is about how the way your DNA is stored may effect the length of your life by stopping aging. DNA is packaged by proteins called histones. These histones are responsible for creating a spool that DNA is wound up on. The tighter and neater the winding is, the longer you will live, for yeast that is. So far, scientists are only aware of this being affective in yeast, but it also may be present in mammals, like ourselves. This article has to do with what we are studying because it is all about DNA and it just shows how, once again, it affects our life. Histones are also, in a way, sort of an organelle, meaning they preform a duty in the cell to help it function.
DNA Could Speed Flu Vaccines
ReplyDeleteby Associated Press
http://www.wired.com/medtech/health/news/2005/10/69422
The government is trying to protect the country from getting the flu virus, it has been deadly and it mutates(changes) every year and very rapidly. The government having been giving away millions of dollars to find a permanent cure, but nothing seems to be working. Untill, a small company using DNA vaccines to keep fishers from losing profit in fishing due to salmon getting a deadly disease. Then the company in England has been doing the same thiung but on humans, which have worked so far. This has related to what we have been studying by showing how DNA is everywhere. It can even be used to cure things. That is pretty cool.
“Stem Cell Experiment On Paralyzed Patient” by Rob Stein , October 12, 2010
ReplyDeletehttp://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2010/10/12/MN8Q1FR612.DTL&type=science
In class we are learning about cells and DNA. In this article, it talks about how doctors are injecting human embryonic stem cells into paralyzed patients to repair spinal cord injuries. The cells were first tested in animals before being approved to use on people. They test to see if the treatment enables the patient to move again. Some people are against this type of experiment because it uses the cell from unborn babies. Some scientists are worried that the patients could actually be hurt by the stem cells.
New genetic blueprint for bloodsuckers
ReplyDeleteGwyneth Dickey
http://www.sciencenews.org/view/generic/id/63894/title/New_genetic_blueprint_for_bloodsuckers
In this article, it talked about the blueprint of Southern House mosquitos. This type of mosquito is one of the three major groups of disease- carrying mosquitos that can help scientists develope more pesticides. The Southern House Mosquito transmit many diseases in the human body. This relates to our studying of cells and DNA, since the article talks about Southern House mosquitos and many other disease-carrying mosquitos tranmiting the disease to animals.
“Stem Cell Experiment On Paralyzed Patient” by Rob Stein , October 12, 2010
ReplyDeletehttp://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2010/10/12/MN8Q1FR612.DTL&type=science
In class we are learning about cells and DNA. In this article, it talks about how doctors are injecting human embryonic stem cells into paralyzed patients to repair spinal cord injuries. The cells were first tested in animals before being approved to use on people. They test to see if the treatment enables the patient to move again. Some people are against this type of experiment because it uses the cell from unborn babies. Some scientists are worried that the patients could actually be hurt by the stem cells.
"DNA comparison of identical twins finds no silver bullet for MS" by Tina Hesman Saey.
ReplyDeletehttp://www.sciencenews.org/view/generic/id/58731/title/DNA_comparison_of_identical_twins_finds_no_silver_bullet_for_MS
This article is about on how one twin got a disease while the other one didn't. The way they tried to check why was by there DNA. Where they found nothing wrong. I chose this because it is related with the whole traits in DNA we have been learning for the past month. Also how the scientist used DNA to try to find an answer.
Rob Stein,Washington post October 12, 2010 04:00 AM
ReplyDeletehttp://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2010/10/12/MN8Q1FR612.DTL&type=science
This article is about a man at the hospital in Menlo park who specializes in repairing spinal chords and brain injuries. Before it was cleared, it was speculated whether or not the procedure was safe. only recently the procedure was given the ok. To be able to repair spines and brains after being damaged is amazing and there are many who can gain from this. With all this said, how do they do it?
Stem Cell Research on paralyzed patient by Rob Stien
ReplyDeletehttp://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2010/10/12/MN8Q1FR612.DTL&type=science
This article is about the controversial research of stem cells. Doctors have injected embryonic stem cells into a paralyzed patient with a spinal cord injury. These cells have been tested on animals but for the first time they were just tested on a human. This is a giant milestone for the research and could be very beneficial to many people if it is successful. Although the scientists are worried that the stem cell research could be harmful to patients and that all their money, time and research could be wasted if this experiment doesn't work. This relates to how we are learning about the structure and function of cells and how important they are to our survival.
Guards of the blood-brain barrier identified by Rachel Ehrenberg
ReplyDeletehttp://www.sciencenews.org/view/generic/id/64295/title/Guards_of_the_blood-brain_barrier_identified
This article is all about how certain cells that form a barrier around the brain. This is known as the blood-brain barrier and it is made of cells and molecules. A recent study has shown that specialized cells called pericytes are very important in the barrier's development. They are found all over the human body because they are always around blood vessels. Scientists thought that these pericytes' task was to help control the flow in the blood vessels. But now they are being investigated as regulators of the barrier. This would relate to this unit because these pericytes could be compared to the channel protein in the cell membrane. The pericytes regulate what goes in and out of the cell, and so do channel proteins. Without the pericytes, the barrier would take many more molecules than it needs and would dump those into the brain, which could damage the brain. likewise, without the channel proteins certain items would not be able to get in and out of the cell... which could be a positive or negative thing.
http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2010/10/12/MN8Q1FR612.DTL&type=science
ReplyDeletein this article it shows that doctors are using unborn baby stem cells of potentially paralyzed patients. Some people are against the whole act cause they feel its wrong. In class we are learning about cells, organelles and genes. i feel this article was appropriate because it relates to those topics and shows what other cells could be used for.
3 Harvard Researchers Retract a Claim on the Aging of Stem Cells, Nicholas Wade
ReplyDeletehttp://www.nytimes.com/2010/10/15/science/15retract.html?_r=1&scp=1&sq=cells&st=cse
This article is about how scientist might have found a way to reverse the aging of stem cells. Scientist in Harvard were seeing if they could rejuvenate mice blood and foundout about some strange facts of the stem cell. If they could make aging reversable it would be awesome and weird at the same time just imagine an 80 year old looking like a 20 year old.
More than a chicken less than a grape
ReplyDeletehttp://www.sciencenews.org/view/generic/id/64286/title/More_than_a_chicken%2C_less_than_a_grape
This article relates to the DNA and genes we have been studying. We have also been learning about chromosomes. Chromosomes are organized pieces of DNA. Chromosomes contain exons or genes.
http://www.sciencenews.org/view/generic/id/64295/title/Guards_of_the_blood-brain_barrier_identified
ReplyDeleteRachel Ehrenberg
Of all the body’s organs, the brain is the most like Area 51: Entry to the region is severely restricted, thanks to a barricade of cells and molecules known collectively as the blood-brain barrier. Increased surveillance by scientists has now pinpointed the barrier’s senior operatives, cells that are tasked with monitoring the razor wire–like barricade that keeps all but a select few from entering the brain.