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| | Child abuse 'alters stress gene' | |
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stoon
Number of posts : 106 Age : 37 Registration date : 2009-02-18
| Subject: Child abuse 'alters stress gene' Mon Feb 23, 2009 8:43 am | |
| Abuse in early childhood permanently alters how the brain reacts to stress, a Canadian study suggests. Analysis of brain tissue from adults who had committed suicide found key genetic changes in those who had suffered abuse as a child. It affects the production of a receptor known to be involved in stress responses, the researchers said. The Nature Neuroscience study underpins the impact of stress on early brain development, experts said. Previous research has shown that abuse in childhood is associated with an increased reaction to stressful circumstances. | Whilst these results obviously need to be replicated, they provide a mechanism by which experiences early in life can have an effect on behaviour later in adulthood
Dr Jonathan Mill
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But exactly how environmental factors interact with genes and contribute to depression or other mental disorders in adulthood is not well understood. A research team led by McGill University, in Montreal, examined the gene for the glucocorticoid receptor - which helps control the response to stress - in a specific brain region of 12 suicide victims with a history of child abuse and 12 suicide victims who did not suffer abuse when younger. They found chemical changes which reduced the activity of the gene in those who suffered child abuse. And they showed this reduced activity leads to fewer glucocorticoid receptors. Those affected would have had an abnormally heightened response to stress, the researchers said. Long-term It suggests that experience in childhood when the brain is developing, can have a long-term impact on how someone responds to stressful situations. But study leader Professor Michael Meaney said they believe these biochemical effects could also occur later in life. "If you're a public health individual or a child psychologist you could say this shows you nothing you didn't already know. "But until you show the biological process, many people in government and policy-makers are reluctant to believe it's real. "Beyond that, you could ask whether a drug could reverse these effects and that's a possibility." Dr Jonathan Mill, from the Institute of Psychiatry at Kings College London said the research added to growing evidence that environmental factors can alter the expression of genes - a process known as epigenetics. "Whilst these results obviously need to be replicated, they provide a mechanism by which experiences early in life can have an effect on behaviour later in adulthood. "The exciting thing about epigenetic alterations is that they are potentially reversible, and thus perhaps a future target for therapeutic intervention." | |
| | | Mohamed LAHRI Admin
Number of posts : 113 Age : 36 Job/hobbies : A third year university student/ Public speaking... Registration date : 2008-10-01
| Subject: Re: Child abuse 'alters stress gene' Fri Mar 06, 2009 1:59 pm | |
| Thanks,dear member, for the data you collected for the readers of this forum. May ALLAH bless you,brother. | |
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When you do exist... | Sun Jun 21, 2009 1:30 pm by OULGOUT Abdelouahed | If you have never sat alone and asked yourself who you are and how you came into being, then take it for granted that you still don’t exist. Until you develop your own independent thought, speak out your mind, and establish your kingdom; you will never find a way to freedom and self-actualization. I have been undergoing awkward moments since my adolescence, struggling to set a balance between …
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Cultural Diversity and the supposed Civilizational Communication | Fri Jun 12, 2009 11:14 am by OULGOUT Abdelouahed | Cultural diversity has fueled a hot controversy more than ever before. The world has become such a small castle because of several rampant scientific revolutions diffusing all over the world and making communication so complex, fuzzy, and multi-dimensional.
In regard to this breathtaking state of human life, it appears that human existence is in need of many metaphysical conditions like safety, …
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Teaching Young Inspectors | Fri Jun 12, 2009 11:05 am by OULGOUT Abdelouahed |
One of the best ways to improve one’s way of teaching is the action taken to globally evaluate our performance in class during the whole year. Evaluating one’s way of teaching and reflecting on it provide the teacher with a precious opportunity to notice his or her points of strength as well as the areas that need improvement. Yet, the way the global evaluation of our performance is done is …
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The myth of nobility | Sat Apr 25, 2009 5:24 am by OULGOUT Abdelouahed |
Many of the norms people are used to were a set of abnormal beliefs and practices. The tendency to hold power, status, and fame was and is still one of the most predominant triggers of society’s irrational mind. The later becomes tangible via the normalization of the abnormal on the account of the norms, which must be determined by … [/img(114px,140px):5f15]
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Norms and society | Mon Apr 27, 2009 1:38 pm by Mohamed LAHRI |
Though culture changes through time, norms may not. They drive us to behave this way and not that one. Our behaviour, then, is cultural but not necessarily a correct one. Virginity of woman, for instance, is necessary, otherwise society would reject her; even it was the force of circumstance that was the cause behind losing it. What about man, doesn't he have virginity to keep? We're still in a …
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You would always be great in my eyes. | Sat Apr 25, 2009 4:01 pm by Mohamed LAHRI | Instead of tackling other points on the issue of equality between woman and man, we're still in conflict with each other,thinking of who is right and who is wrong. we're still in doubt whether woman has the right to behave as a human or should be treated as doing with animals. Isn't she one of God's creatures? Don't we recall His saying: "O! People we created you from the same male and …
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When change comes true | Tue Apr 21, 2009 11:51 am by OULGOUT Abdelouahed |
While a person dreams of becoming someone else, norms drive him down to remain as he is. A person always longs for a new future, yet norms reject but sticking to an old past. We have been imprisoned since the moment we were born, yet, fortunately, we are capable to get back our freedom by the time we grow up and develop self-awareness. To … [/img(118px,147px):f768]
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How to be a student | Sun Mar 08, 2009 10:37 am by Mohamed LAHRI | How to Be a Student
Introduction
The typical college campus is a friendly place; but it is also a competitive environment. The education you receive there, and the attitudes you develop, will guide you for the rest of your life. Your grades will be especially important in landing your first job, or when applying to graduate school. To be a successful student requires certain skills; but, …
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The Oscars 2009 | Mon Feb 23, 2009 8:41 am by stoon | Here is the full list of winners at the 81st Academy Awards, which have been held in Los Angeles.
Best picture: Slumdog Millionaire
Also nominated: The Curious Case of Benjamin Button; Frost/Nixon; Milk; The Reader
Sean Penn shook as he used a scrap of paper to thank people for his award
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Best director: Danny …[/img(226,282):b91f] |
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