Navigation Links
Ultradian


Ultradian denotes biologic activities that recur in physiological cycles of 20 hours or less. They are independent of illumination factors.

The descriptive term ultradian is used in sleep research to describe individual stages of sleep that occur within intervals of an organism's circadian rhythm, and especially to refer to the 90 minute ultradian cycle in human sleep.

Some of the ultradian cyclings of the body are hormonal release, heart rate, thermoregulation, nostril dilation and appetite. The last involves rhythmic release of Neuropeptide Y (NPY) and Corticotropin-releasing hormone(CRH), stimulating and inhibiting appetite ultradian rhythms.

Ultradian Bipolar Disorder

All forms of Bipolar Disorder have a defined biological nature, apparently stemming from a common genetic factor that leads to generational morbidity. Both twins studies, and general population studies show that there is an increased chance of developing a Bipolar Disorder when either a general mood disorder or a specific Bipolar disorder is present in family members. Further research is being conducted to discriminate any environmental factors that may also play a role in onset and severity of Bipolar disorder. The same kindling effect that is present with seizure disorders has been observed in early onset cases of Bipolar Disorder. Results are inconclusive at this time.

Ultradian states in Bipolar Disorder are different from rapid cycling, (having four or more mood episodes in a year). The term rapid cycling was defined prior to discovery of Ultradian mood states. Thus it can be misleading to think of these states as ultra rapid cycling, as this particular form of cycling is also described as a mixed state, and has not yet gained universal acceptance. Both terms are unable to capture the nature of this unique form of the Bipolar Disorder.

Ultradian cycling is characterized by more than four mood states within a year. Often these mood states occur within the space of a few weeks or even a single day. These oscillations, cycles, may last for several hours, a few days, or even weeks. While our current understanding looks to the presence of both states simultaneously, there are anecdotal cases where situational factors can produce distinct and separate periods of depression or mania/hypomania, switching back and forth. Because there is very little research into this particular form of cycling, the terminology is borrowed from the more established research into the formal Bipolar I or Bipolar II categories.

Ultradian Bipolar Disorder is productively treated by the same mood-stabilizing medications used with Bipolar I and II, though dosing may be difficult due to situational stress and other environmental factors.

Researchers are working to understand the brain chemistry basis of mood states in an effort to better diagnose and treat Bipolar Disorder. This research shows the promise of finding biological determinants for Ultradian mood states.

["Acute, rapid-cycle bipolar disorder" has also been used in recent studies involving the cycling of once daily (1d) to once hourly (1h). Minor "seizures" and "strokes" have also been found in these studies...]

References

  • Ultra-rapid and ultradian cycling in bipolar affective illness. Kramlinger KG, Post RM. Br J Psychiatry. 1996 Mar;168(3):314-23. Associated Articles and Links [1]
  • Disentangling Rapid-Cycling Bipolar From Borderline[2], Mark Dombeck, Ph. D.[3]
  • http://polyphasing.blogspot.com/2006/01/quote-on-4-hr-ultradian-cycle.html (Dr. Claudio Stampi is a sleep expert).
  • Circadian Rhythms factor in Rapid-Cycling Bipolar Disorder. [4]
  • Barrios C, Chaudhry TA, Goodnick PJ. Rapid cycling bipolar disorder. Expert Opin Pharmacother. 2001 Dec;2(12):1963-73. [5]
  • Ultra-ultra rapid cycling bipolar disorder is associated with the low activity catecholamine-O-methyltransferase allele. Kramlinger KG, Post RM. Br J Psychiatry. 1996 Mar;168(3):314-23. abstract here - [6]
  • More PubMed abstracts and reviews specifically dealing with ultra ultra rapid cycling or ultridian bipolar disorder [7]
  • Article on Rapic-cycling on McMan web. [8]

'"/>


(Date:12/26/2014)... 2014 Parker & Sons, Inc. ... in heating, cooling and plumbing contractor services throughout ... services in 2014 with regard to air-conditioning systems. ... is known for its incredibly hot summers. Working ... intricacies and details of a wide variety of ...
(Date:12/25/2014)... 2014 The click strand ... strength and durability. Today, the business announces a ... valid until Jan. 30, 2015. , Click strand ... hardwood. BambooFlooringChina.com is a well-known brand in the ... to find a reliable bamboo flooring supplier. , ...
(Date:12/25/2014)... 2014 Product liability lawsuits filed in ... ( http://www.consumerinjurylawyers.com/DePuy/ ) continue to move forward in federal ... issued in the U.S. District Court, Northern District of ... open conference on January 7, 2015, at the Paul ... West Palm Beach, Florida. The Conference is scheduled to ...
(Date:12/25/2014)... Recently, Dylan Queen, a famous online company supplying ... of discounted prom dresses, most of which are priced ... the company, the promotion is valid until Jan. 22, ... the UK market. , The prom dresses in this ... styles: A-line strapless, empire strapless chiffon, one shoulder, floor-length, ...
(Date:12/25/2014)... sells many bamboo products and the business is famous ... announces big discounts on its bamboo mats , which ... the world’s leader in bamboo flooring. According to the ... 2015. , The bamboo mats are made from well-treated ... the bamboo strips for the mats are boiled and ...
Breaking Medicine News(10 mins):Health News:Parker & Sons Announces Record Demand For 24 Hour Emergency Services In 2014 With Regard To Air-Conditioning Systems 2Health News:Parker & Sons Announces Record Demand For 24 Hour Emergency Services In 2014 With Regard To Air-Conditioning Systems 3Health News:BambooFlooringChina.com: click strand woven bamboo flooring promotion valid until Jan. 30, 2015. 2Health News:Federal Court Overseeing DePuy ASR Hip Lawsuit Set to Convene Conference in January, Bernstein Liebhard LLP Reports 2Health News:Federal Court Overseeing DePuy ASR Hip Lawsuit Set to Convene Conference in January, Bernstein Liebhard LLP Reports 3Health News:Dylan Queen: Cheap Prom Dresses for the UK Market 2Health News:Various Styles of Bamboo Mats in Many Colors from BambooFlooringChina.com 2
... found that the rates have increased among those who take the ... children immunized with the three-in-one MMR jab in Scotland. But the ... 95% by the age of two. But there was a 0.7% ... the vaccines association with the childhood autism disease. , ...
... decrease in chicken and egg prices have forced a Kolkata ... consuming pesticide. // The huge debts is said to have ... an owner of one of the biggest poultry farms in ... the chickens were found to be affected by Ranikhet disease. ...
... St. Louis say that a noninvasive approach towards assessing ... for cystic fibrosis and pneumonia. // Positron emission tomography ... in the lungs of healthy volunteers. ,"Until ... drug decreased lung inflammation, the options for specifically measuring ...
... group jogging or jogging with a friend will be more ... ,Researchers led by Professor Elizabeth Gould at Harvard University compared ... exercise in a group and found that contrary to accepted ... reported online edition of Daily Mail. ,The researchers ...
... bacteria belonging to the Legionella family, Legionella pneumophilia. // ... her 50s and the other in her 70s. They were ... , New South Wales (NSW) health officials are investigating an ... had been to the Chatswood's shopping area. The disease results ...
... record system, designed to connect up 50 million patients' records, ... trouble, according to reports. // The National Audit Office has ... rounds that the new NHS system might have thrown patients ... The switch to the new system, a modernization plan for ...
Cached Medicine News:
Other medicine definitionOther Tags