понедельник, 3 октября 2011 г.

Everything About The Antidepressants

Antidepressants execute on the chemicals in the brain that influence spirit and other factors of depression. For some people, specially those with major depression, recession medications may be an important part of the treatment arrangement. Milder forms of depression may be treated without melancholy drugs, also called antidepressants, but most experts favour that when depression is severe, a indentation medication can help.
If you be suffering with depression and you and your doctors are considering a the dumps medications, you should know that most people winning an antidepressant experience at least one side power and about 40 percent of people do not get recess from the first depression medication they try.
Depression Medications: Common Types
The theory behind using medication to zeal depression is that buy Valium no prescription is caused by a chemical imbalance in your perception. Low levels of brain chemicals called neurotransmitters may be answerable for some types of depression. Emotive and social factors also give a role in depression it's grave to remember that depression medication by itself is not a magnetism bullet.
Stereotypical classes of depression medications categorize:
* Selective serotonin reuptake inhibitors (SSRIs). These sadness drugs work by making more of the planner chemical serotonin available to your intellectual. Serotonin is believed to influence your humour. These medications are the most oft-times prescribed for anxiety because they be subjected to fewer side effects than older medications. Some of the drug names you may be presumptuous with are fluoxetine (Prozac), paroxetine (Paxil), and citalopram (Celexa). The most general side effects include animal problems, headache, nausea, dry moue, and difficulty sleeping.
* Atypical antidepressants. These melancholy drugs are similar to the SSRI drugs. In annex to serotonin, they may target other percipience chemicals such as dopamine or norepinephrine, which may pit oneself against a role in depression. Common drugs in this savoir vivre are venlafaxine (Effexor), duloxetine (Cymbalta), and bupropion (Wellbutrin). Side effects are nearly the same to the SSRI drugs and include drain, weight gain, sleepiness, and blurred vision.
* Tricyclic antidepressants. This is an older breeding of depression drugs. Like newer antidepressants, tricyclics do by increasing levels of brain chemicals, but nowadays they are not Euphemistic pre-owned as often since they deliver more side effects. These register dry mouth, blurred vision, urination difficulties, and constipation. Also, tricyclics can scrape by you tired. If you have glaucoma, you should not favour any tricyclic antidepressant.
* Monoamine oxidase inhibitors (MAOIs). Another older order of antidepressant drugs, MAOIs are also now seldom used because of their the right stuff side effects. These drugs undertaking by blocking an enzyme called monoamine oxidase, which breaks down the intellect chemicals serotonin and norepinephrine. People intriguing MAOIs can experience dangerous reactions if they eat changeless foods, drink alcohol, or judge over-the-counter cold medicines.
Depression Medications: The Government Warnings
 In 2005, the U.S. Food and Drug Administration warned that the jeopardy of suicidal thoughts or behavior may be increased for children and adolescents attractive depression drugs. In 2007, the caveat was expanded to include anyone at the mercy of age 25 taking antidepressants.
If you are alluring an antidepressant, especially if you are under 25, let your doctor skilled in if your depression seems to be getting worse or if you be subjected to any thoughts of hurting yourself. If you and your doctor upon that you should try medication for your despair, know that it takes concerning six weeks for the depression medication to entertain its full effect.
Under no circumstances start or stop a depression medication without letting your doctor be informed. Suddenly stopping your medication can root an unpleasant withdrawal reaction, so when the later is right your doctor will confer you instructions for gradually reducing the dose in the vanguard stopping the buy generic valium no prescription. Although you lack to be aware of their side effects and regard in close contact with your doctor, most people who prerequisite an antidepressant find one that works for them. 

среда, 16 февраля 2011 г.

Screen New Moms for Postpartum Depression, says American Academy of Pediatrics

Mood changes after giving birth is thought to affect up to 80% of new mothers not only due to hormonal changes, but also because of sleep deprivation and the sudden onset of new and critical responsibilities. However, up to a fourth of women may also experience something more serious – postpartum depression – and the American Academy of Pediatrics stresses to its member pediatricians to begin screening moms at new baby well checks to prevent a host of problems.

Recognize Signs and Symptoms of Postpartum Depression Early

Rates of depression among pregnant and postpartum women are estimated to be between 5 and 25% with the incidence of major depression in the first year after birth being between 1 and almost 7%. According to Marian F. Earls MD and colleagues from the AAP Committee on Psychosocial Aspects of Child and Family Health, this means that more than 400,000 infants are born annually to depressed mothers.
Read: Maternal Affection Provides Lifetime Benefits
Depression in new mothers can cause problems such as delay in maternal-child bonding and an environment that can lead to cognitive and social development problems (ie: behavior problems, anxiety and mood disorders) as early as two months. “The processes for early brain development – neuronal migration, synapse formation and pruning – are responsive to and directed by environment as well as genetics,” write the authors in the November issue of the journal Pediatrics.
Maternal depression can also lead to inappropriate medical care, impaired attention to health and safety concerns, discontinuation of breastfeeding, and most seriously, child abuse and neglect says the committee.
Read: Postpartum Depression is Real for Fathers Too
Although pediatricians may currently lack training to identify postpartum depression, the committee feels that screenings are feasible and can be successful as it may identify at-risk mothers sooner. Infants are seen more often in the first month after birth by a healthcare professional than are postpartum women. In general, babies are seen at 1 week, 2 weeks and one month after birth by a pediatrician, while women usually wait until 6 weeks after giving birth for a follow-up by an obstetrician/gynecologist.
There are also obstacles to be overcome, such as time pressure, inadequate reimbursement, and the need for postpartum screening tools. Pediatricians would also not treat patients under the new model but would provide referrals to mental health professionals, the committee stresses.
Read: Postpartum Depression is Part of Mental Health Awareness
Women and their partners should be on the lookout for the symptoms of postpartum depression, which include loss of appetite, insomnia, intense irritability and anger, feelings of shame or guilt, and withdrawal from family and friends. Women who suffer from postpartum depression should recognize that she is not alone, not at fault, and that the situation will improve. She should seek help as soon as possible from a qualified mental health professional.

среда, 15 декабря 2010 г.

VAI Finding Leads To New Drugs For Anxiety, Depression

Researchers in the Laboratory of Structural Sciences at Van Andel Institute (VAI) have determined how the hormone corticotrophin releasing factor (CRF) precisely binds to its receptor. This detailed structural information can help drug developers design new drugs for anxiety, depression, and related disorders.
"There are a few drugs in development to treat anxiety, depression, and other conditions by targeting the cellular receptor that CRF binds to, but there are no drugs currently on the market," said VAI Distinguished Scientific Investigator Eric Xu, Ph.D., who published his laboratory's findings in The Journal of Biological Chemistry. "There is a lot of interest in this receptor as a drug target, and we are the first to determine the structural details necessary to develop an ideal drug."
CRF is a hormone and neurotransmitter secreted by the hypothalamus area of the brain and is involved in stress response. CRF has been associated with anxiety, depression, and related disorders. The hormone's receptor is a protein on the surface of a cell or in its interior that binds to the hormone, which allows the hormone to activate changes in the cell.
Using a technique known as X-ray crystallography, VAI researchers determined the molecular structure of the part of the CRF receptor that sticks outside of the cell and binds to CRF and other proteins in the same family. This detailed structural information can help drug developers engineer a drug that more perfectly fits to the receptor, making the drug more potent. Researchers determined the structure of the receptor in three different scenarios -- one with nothing bound to the receptor, one with CRF bound to the receptor, and one that shows how the receptor binds to other proteins in the same family.
To determine the structure, researchers had to crystallize the hormone and receptor in these different scenarios, a process similar to letting salty water evaporate to form salt crystals but much more difficult. The lab used a unique method to do this that they recently developed to determine the structure of the parathyroid hormone (PTH) receptor, used to treat osteoporosis. PTH and CRF receptors are in the same family of proteins.
"There are many therapeutically important receptors in the same family as CRF and PTH," said Xu, "and there is a good chance we may be able to apply our crystallizing method to even more members of this family going forward."
Established by Jay and Betty Van Andel in 1996, Van Andel Institute is an independent research organization dedicated to preserving, enhancing and expanding the frontiers of medical science, and to achieving excellence in education by probing fundamental issues of education and the learning process.

пятница, 10 декабря 2010 г.

New Therapies Show Promise For Vascular Depression

Researchers see new treatments on the horizon for a type of depression related to blood vessels that affects the elderly, and have discovered why some elderly people fail to respond to current medications. In other studies, scientists urge caution regarding use of antipsychotics (usually for schizophrenia or other psychosis) in this and other populations to minimize metabolic, heart, and stroke risks.
The scientists spoke today at a press conference involving speakers from two symposia sponsored by National Institute of Mental Health (NIMH), a part of the National Institutes of Health, during the American Psychiatric Association Annual Meeting here.
"Mental health practitioners and patients should be aware of the relationship between vascular problems and depression, and should understand the value of preventing vascular changes that might lead to difficult-to-treat depressions, for example through early recognition and treatment of high blood pressure" says John Newcomer, MD, of Washington University in St. Louis.
Drugs Show Promise for Vascular Depression
New treatment possibilities are being explored for vascular depression, a recently recognized type of depression that usually develops in patients older than age 60 and is associated with loss of blood supply to the brain. This condition is a serious problem for elderly patients and highly effective treatments have yet to be developed, but several research teams now report progress in understanding and treating this condition.
George Alexopoulos, MD* of the Weill Cornell Medical College in White Plains, NY, and his colleagues, are investigating the specific brain abnormalities linked to blood vessel problems. Using a new magnetic resonance imaging technique called diffusion tensor imaging, Alexopoulos and his team have found that, in late life depression, higher blood pressure readings are linked to tiny white matter abnormalities, mainly in the brain’s frontal lobes and in subcortical areas. Some of these structural abnormalities were linked to impairment in specific frontal lobe functions.
The researchers are also studying the brain abnormalities preventing depressed older patients from responding to antidepressant medication. In a study of 112 elderly patients with major depression treated with the antidepressant citalopram, they found that patients were less likely to recover from their depression if they had cardiovascular disease or performed poorly on a ‘response inhibition’ task testing an aspect of cognition requiring frontal lobe function. This timed task asks a person to suppress the reading of a word (e.g., the word red) and identify the color of ink by which the word is written (e.g., blue). In a subsequent study of 48 depressed older patients treated with the antidepressant escitalopram, which is more potent than citalopram, Alexopoulos and his colleagues showed, for the first time, that patients who failed to achieve remission had more of the tiny structural abnormalities in several areas of frontal lobe and in subcortical structures compared with those who got well.
"With further refinement, the findings may improve physicians’ ability to predict who will fail to respond to antidepressants," Alexopoulos says. "Such patients may need close follow-up and different treatments such as psychotherapy or novel medications. Second, our findings can be used in the development of new treatments for those who do not respond to classical antidepressants."
Alexopoulos is now working to pinpoint activation and processing abnormalities in frontal and subcortical brain structures that predict failure to respond to antidepressants. He is studying how parts of the frontal lobe are activated when depressed patients perform cognitive tasks known to engage this area. "Preliminary findings show that depressed older patients cannot activate these frontal lobe parts as efficiently as non-depressed older adults," Alexopoulos, says.
Stimulation Therapy Tested for Vascular Depression
In other treatment strategies, Robert Robinson, MD, a professor of psychiatry at the University of Iowa, and his colleagues have found for the first time that vascular depression can be effectively treated with repetitive transcranial magnetic stimulation (rTMS), an experimental technique that also has been tested in other psychiatric disorders.
Among 92 depressed people with an average of three prior treatment failures, the researchers found that rTMS produced better remission rates than those associated with standard medication treatment. They also found that increasing the number of magnetic pulses delivered significantly improved remission rates. "These findings suggest that this new method of treatment may be particularly useful for these late life onset depressions and that even greater response rates might be achieved by utilizing more pulses of magnetic stimulation," Robinson says. The findings of this study were published in the March 2008 issue of the Archives of General Psychiatry.
The study participants had clinical or imaging evidence indicating lack of blood flow in the brain, and had failed to respond to standard treatments for depression. They were given either 12,000 or 18,000 pulses of rTMS or a sham (inactive) treatment over a two-week period. Neither the patient nor the examiner knew if the treatment was actual rTMS or sham, thus removing any possible bias. Improvement of depression was documented by scores on the Hamilton Depression Scale. The next step in this research is to determine precisely how many magnetic stimulations will achieve the maximum response among patients with vascular depression.

воскресенье, 5 декабря 2010 г.

Recognizing the dangers of anti-depressant drugs

According to the FDA several recent scientific publications suggest the possibility of an increased risk of suicidal behavior for people who are being treated with antidepressant medications. This concern lead the FDA to mandate black box warning labels on all antidepressant drugs disclosing the increased risks of suicidal thinking and behavior, known as suicidality. It has now very important to begin recognizing the dangers of anti-depressant drugs.
The purpose of SSRI drugs is to prevent serotonin from being reabsorbed. Serotonin, also known as the “happy drug”, is thought to be contrived of chemicals that our body creates to keep our spirits up. One of the major problems with the use of SSRI drugs is that they can result in serotonin syndrome. This syndrome is caused by over stimulation of the neurons associated with serotonin, which can lead to changes in mental status, restlessness, abnormal body movement, tremors, high fevers, and agitation which may lead to suicide.
SSRI drugs have gone through tedious testing under the care of the Food and Drug Administration (FDA); however, the testing of new drugs is not done by the FDA, it is actually the pharmaceutical company that supports, funds, and carries out the drugs testing. The FDA relies on the pharmaceutical company's validity of research, which then results in an approval by the FDA.
Recognizing the dangers of anti-depressant drugs can be important for those taking such medications. Some side effects can include, nausea, constipation or diarrhea, heart palpitations, loss of appetite, loss or gain of weight, memory impairment, blurred vision, headaches, confusion, burning and tingling in extremities, muscle twitching, dry mouth, dizzy, chills, fatigue, mood swings, anxiety, sexual dysfunction, impulsive behaviors, suicidal thoughts and completed suicide.
There is much debate on the placebo effect and antidepressants. Through a Freedom of Information Act request, two psychologists obtained 47 studies used by the FDA for approval of the six antidepressants prescribed most widely. Overall, antidepressant pills worked only 18% better than placebos.
It is important that people considering a medication approach to treating symptoms of depression to do research before deciding to take a certain medication and recognizing the dangers of anti-depressant drugs. Patients should have a list of questions to ask their doctors before agreeing to medications. More and more people are recognizing alternative treatments for mild to moderate depression can be helpful and do not carry high risk factors or side effects.
SSRI’s can be good for some people. Many have reported “gaining their lives back again” after being on SSRI’s such as Celexa, Lexapro, Paxil, Prozac and Zoloft. What is important to remember is people considering a medical approach to their depression should pay attention to the dangers of anti-depressant drugs.

среда, 1 декабря 2010 г.

Studying Antidepressant Use Among Children, Adolescents With Mental Illness

Are antidepressants effective as treatments for mentally ill children and adolescents? Are they harmful? These questions have been the topic of immense public debate and are of considerable public health importance.
To learn more about the role of antidepressants in the treatment of children and adolescents living with mental illnesses, the Child and Adolescent Psychiatry Trials Network (CAPTN) is launching the first independently funded large-scale safety registry to track antidepressant use among youth.
The goal of the Antidepressant Safety in Kids (ASK) study is to determine factors that may help doctors better understand the risks and benefits associated with using antidepressant medications as part of a young person’s treatment plan. It will seek to answer, "Which treatment is most effective for which child?"
"It is of considerable public health importance that we address the long-term safety and effectiveness of medications used in the care of mentally ill youth. This work marks an important step toward understanding the usefulness of antidepressant medications in children and adolescents," said John March, M.D., chief of child and adolescent psychiatry at Duke University and lead investigator on CAPTN. "My hope is to repeat the success of networks established for other common illnesses, such as heart disease and cancer, to determine the effect of psychotropic medications on patient outcomes."
Funded through a grant from the National Institute of Mental Health to the Duke Clinical Research Institute in cooperation with the American Academy of Child and Adolescent Psychiatry (AACAP), CAPTN is an innovative practical clinical trials network of 200 practicing child and adolescent psychiatrists throughout the United States and Canada.
The first study to be conducted under the CAPTN umbrella is ASK, a prospective longitudinal cohort study of 2,420 children and adolescents with a depressive disorder, anxiety disorder, obsessive-compulsive disorder or eating disorder. The study participants will be prescribed either a selective serotonin reuptake inhibitor (SSRI) or serotonin-norepinephrine reuptake inhibitor (SNRI). While these two classes of medications are widely used among adults and prescribed to approximately two to three percent of American children, questions have arisen about potential adverse events, especially suicidal events, associated with use of these medications. Through ASK, information will be collected about the safety, tolerability, effectiveness and potential benefits of these medications.

четверг, 25 ноября 2010 г.

Antidepressants can alter personality traits

A new study shows that taking antidepressants can alter personality traits. A benefit of taking the antidepressant paroxetene was found to produce less neuroticism and greater degrees of extroversion – lack of either characteristic are risk factors for depression.
The study comes from Tony Z. Tang, Ph.D., of Northwestern University, Evanston, Ill., and colleagues who specifically studied the antidepressant SSRI, paroxetine in 240 adults with major depressive disorder. One hundred twenty participants were randomly assigned to take paroxetine, 60 underwent cognitive therapy and 60 were given placebo for twelve months. The group taking paroxetine showed changes in personality traits that differed from the other study participants.
Personality traits and symptoms of depression were measured before, during and after treatment. Those taking the antidepressant paroxetine experienced 6.8 times as much change on neuroticism and 3.5 times as much change on extraversion, though each of the groups had improvement in depression symptoms.
Paroxetine, an antidepressant called an SSRI (selective serotonin reuptake inhibitor), seems to change personality traits in a way that is not just linked to relief of depression symptoms. The authors write, "One possibility is that the biochemical properties of SSRIs directly produce real personality change. Furthermore, because neuroticism is an important risk factor that captures much of the genetic vulnerability for major depressive disorder, change in neuroticism (and in neurobiological factors underlying neuroticism) might have contributed to depression improvement."
SSRI’s are first line choices for treating depression, but the way they work has not been entirely understood. The researchers say, "Investigating how SSRIs affect neuroticism and extraversion may thus lead toward a more parsimonious understanding of the mechanisms of SSRI’s.” The antidepressants are also shown to help treat eating disorders and anxiety, both of which are linked to high neuroticism and low extraversion.