Friday, February 29, 2008

Bipolar Resarch-- Health

Bipolarreportinfo022908

www.nimh.nih.gov

What is Bipolar?

-Bipolar Disorder, also known as manic-depressive illness, is a serious medical illness that causes shifts in a person's mood, energy, and ability to function. Different from the normal ups and downs that everyone goes through, the symptoms of bipolar disorder are severe

-But there is good news: bipolar disorder can be treated

-About 5.7 million American adults or about 2.6 percent of the population age 18 and older in any given year,1 have bipolar disorder. Bipolar disorder typically develops in late adolescence or early adulthood. However, some people have their first symptoms during childhood, and some develop them late in life. It is often not recognized as an illness, and people may suffer for years before it is properly diagnosed and treated

-“Manic-depression distorts moods and thoughts, incites dreadful behaviors, destroys the basis of rational thought, and too often erodes the desire and will to live. It is an illness that is biological in its origins, yet one that feels psychological in the experience of it; an illness that is unique in conferring advantage and pleasure, yet one that brings in its wake almost unendurable suffering and, not infrequently, suicide.”--Kay Redfield Jamison, Ph.D., An Unquiet Mind, 1995, p. 6. (Reprinted with permission from Alfred A. Knopf, a division of Random House, Inc.)

What are the symptoms?

-Bipolar disorder causes dramatic mood swings

-The periods of highs and lows are called episodes of mania and depression.

Signs and symptoms of mania (or a manic episode) include:

    • either an elated, happy mood or an irritable, angry, unpleasant mood
    • increased physical and mental activity and energy
    • racing thoughts and flight of ideas
    • increased talking, more rapid speech than normal
    • ambitious, often grandiose plans
    • risk taking
    • impulsive activity such as spending sprees, sexual indiscretion, and alcohol abuse
    • decreased sleep without experiencing fatigue
  • A manic episode is diagnosed if elevated mood occurs with three or more of the other symptoms most of the day, nearly every day, for 1 week or longer. If the mood is irritable, four additional symptoms must be present.

-A mild to moderate level of mania is called hypomania. Hypomania may feel good to the person who experiences it and may even be associated with good functioning and enhanced productivity. Thus even when family and friends learn to recognize the mood swings as possible bipolar disorder, the person may deny that anything is wrong. Without proper treatment, however, hypomania can become severe mania in some people or can switch into depression.

-Sometimes, severe episodes of mania or depression include symptoms of psychosis (or psychotic symptoms). Common psychotic symptoms are hallucinations (hearing, seeing, or otherwise sensing the presence of things not actually there) and delusions (false, strongly held beliefs not influenced by logical reasoning or explained by a person’s usual cultural concepts). Psychotic symptoms in bipolar disorder tend to reflect the extreme mood state at the time. For example, delusions of grandiosity, such as believing one is the President or has special powers or wealth, may occur during mania; delusions of guilt or worthlessness, such as believing that one is ruined and penniless or has committed some terrible crime, may appear during depression. People with bipolar disorder who have these symptoms are sometimes incorrectly diagnosed as having schizophrenia, another severe mental illness

-In some people, however, symptoms of mania and depression may occur together in what is called a mixed bipolar state. Symptoms of a mixed state often include agitation, trouble sleeping, significant change in appetite, psychosis, and suicidal thinking. A person may have a very sad, hopeless mood while at the same time feeling extremely energized.

Bipolar disorder may appear to be a problem other than mental illness—for instance, alcohol or drug abuse, poor school or work performance, or strained interpersonal relationships. Such problems in fact may be signs of an underlying mood disorder.

What is a "mixed" state?

A mixed state is when symptoms of mania and depression occur at the same time. During a mixed state depressed mood accompanies manic activation.

What are the symptoms of depression?

Depression is the other phase of bipolar disorder. The symptoms of depression may include:

  • loss of energy
  • prolonged sadness
  • decreased activity and energy
  • restlessness and irritability
  • inability to concentrate or make decisions
  • increased feelings of worry and anxiety
  • less interest or participation in, and less enjoyment of activities normally enjoyed
  • feelings of guilt and hopelessness
  • thoughts of suicide
  • change in appetite (either eating more or eating less)
  • change in sleep patterns (either sleeping more or sleeping less)

What is the Treatment?

-In most cases, bipolar disorder is much better controlled if treatment is continuous than if it is on and off. But even when there are no breaks in treatment, mood changes can occur

Mood stablizers

  • Lithium, the first mood-stabilizing medication approved by the U.S. Food and Drug Administration (FDA) for treatment of mania, is often very effective in controlling mania and preventing the recurrence of both manic and depressive episodes.
  • Anticonvulsant medications, such as valproate (Depakote®) or carbamazepine (Tegretol®), also can have mood-stabilizing effects and may be especially useful for difficult-to-treat bipolar episodes. Valproate was FDA-approved in 1995 for treatment of mania.
  • Newer anticonvulsant medications, including lamotrigine (Lamictal®), gabapentin (Neurontin®), and topiramate (Topamax®), are being studied to determine how well they work in stabilizing mood cycles.
  • Anticonvulsant medications may be combined with lithium, or with each other, for maximum effect.
  • Children and adolescents with bipolar disorder generally are treated with lithium, but valproate and carbamazepine also are used. Researchers are evaluating the safety and efficacy of these and other psychotropic medications in children and adolescents. There is some evidence that valproate may lead to adverse hormone changes in teenage girls and polycystic ovary syndrome in women who began taking the medication before age 20.13 Therefore, young female patients taking valproate should be monitored carefully by a physician.
  • Women with bipolar disorder who wish to conceive, or who become pregnant, face special challenges due to the possible harmful effects of existing mood stabilizing medications on the developing fetus and the nursing infant.14 Therefore, the benefits and risks of all available treatment options should be discussed with a clinician skilled in this area. New treatments with reduced risks during pregnancy and lactation are under study.
    • Cognitive behavioral therapy helps people with bipolar disorder learn to change inappropriate or negative thought patterns and behaviors associated with the illness.
    • Psychoeducation involves teaching people with bipolar disorder about the illness and its treatment, and how to recognize signs of relapse so that early intervention can be sought before a full-blown illness episode occurs. Psychoeducation also may be helpful for family members.
    • Family therapy uses strategies to reduce the level of distress within the family that may either contribute to or result from the ill person’s symptoms.
    • Interpersonal and social rhythm therapy helps people with bipolar disorder both to improve interpersonal relationships and to regularize their daily routines. Regular daily routines and sleep schedules may help protect against manic episodes.
    • As with medication, it is important to follow the treatment plan for any psychosocial intervention to achieve the greatest benefit.
      • In situations where medication, psychosocial treatment, and the combination of these interventions prove ineffective, or work too slowly to relieve severe symptoms such as psychosis or suicidality, electroconvulsive therapy (ECT) may be considered. ECT may also be considered to treat acute episodes when medical conditions, including pregnancy, make the use of medications too risky. ECT is a highly effective treatment for severe depressive, manic, and/or mixed episodes. The possibility of long-lasting memory problems, although a concern in the past, has been significantly reduced with modern ECT techniques. However, the potential benefits and risks of ECT, and of available alternative interventions, should be carefully reviewed and discussed with individuals considering this treatment and, where appropriate, with family or friends.19
      • Herbal or natural supplements, such as St. John’s wort (Hypericum perforatum), have not been well studied, and little is known about their effects on bipolar disorder. Because the FDA does not regulate their production, different brands of these supplements can contain different amounts of active ingredient. Before trying herbal or natural supplements, it is important to discuss them with your doctor. There is evidence that St. John’s wort can reduce the effectiveness of certain medications.20 In addition, like prescription antidepressants, St. John’s wort may cause a switch into mania in some individuals with bipolar disorder, especially if no mood stabilizer is being taken.21
      • Omega-3 fatty acids found in fish oil are being studied to determine their usefulness, alone and when added to conventional medications, for long-term treatment of bipolar disorder.22

What are the causes of Bipolar?

-While the exact cause of bipolar disorder is not known, most scientists believe that bipolar disorder is likely caused by multiple factors that interact with each other to produce a chemical imbalance affecting certain parts of the brain. Bipolar disorder often runs in families, and studies suggest a genetic component to the illness. A stressful environment or negative life events may interact with an underlying genetic or biological vulnerability to produce the disorder. There are other possible "triggers" of bipolar episodes: the treatment of depression with an antidepressant medication may trigger a switch into mania, sleep deprivation may trigger mania, or hypothyroidism may produce depression or mood instability. It is important to note that bipolar episodes can and often do occur without any obvious trigger.

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