Navigation Links
Changes in brain's blood flow could cause 'brain freeze'
Date:4/22/2012

logical changes might prompt headaches have mainly relied on various drugs, or brought in patients already in the throes of a migraine to the lab. However, both methods have their limitations. Pharmacological agents can induce other effects that can make research results misleading, he says, and since researchers can't wait for migraine sufferers to experience a migraine in the lab, those studies miss the crucial period of headache formation that occurs sometimes hours before scientists were able to study these patients.

To induce headache inside the lab and study it from start to finish, Serrador explains, brain freeze is a perfect fit. It's easy to bring on and resolves quickly without expensive or complicated equipment or drugs.

In this study, Serrador and his colleague recruited 13 healthy adults. The researchers monitored the volunteers' blood flow in several brain arteries using transcranial Doppler while they first sipped ice water with the straw pressed against their upper palateideal conditions for bringing on brain freezeand then while sipping the same amount of water at room temperature. The volunteers raised their hand once they felt the pain of a brain freeze, then raised it again once the pain dissipated. Findings showed that one particular artery, called the anterior cerebral artery, dilated rapidly and flooded the brain with blood in conjunction to when the volunteers felt pain. Soon after this dilation occurred, the same vessel constricted as the volunteers' pain receded.

Changing the Course of Headaches

Serrador and his colleagues speculate that the dilation, then quick constriction, may be a type of self-defense for the brain. "The brain is one of the relatively important organs in the body, and it needs to be working all the time," he explains. "It's fairly sensitive to temperature, so vasodilation might be moving warm blood inside tissue to make sure the brain stays warm." But because the skull is a closed s
'/>"/>

Contact: Donna Krupa
dkrupa@the-aps.org
American Physiological Society
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Scientists find that neurological changes can happen due to social status
2. How old are these rocks, how were they made, and how long ago did these geologic changes happen?
3. Holding a mirror to brain changes in autism
4. New research shows childhood adversity causes changes in genetics
5. ChromaDex® Announces Management Changes
6. The influence of estrogen on female mood changes
7. Team finds a better way to gauge the climate costs of land use changes
8. Upper atmosphere facilitates changes that let mercury enter food chain
9. Paleoclimate record points toward potential rapid climate changes
10. Study of Yellowstone wolves improves ability to predict their responses to environmental changes
11. Study finds climate changes faster than species can adapt
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... in DNA, tiny strands of nucleic acid that contain ... this genetic data, our DNA is copied into RNA ... perform tasks in our cells. , Several years ... Unlike all other known RNAs, this molecule is circular, ... abundant, little has been known about how they are ...
(Date:9/18/2014)... ALEXANDRIA, Va.Sept. 18, 2014Many Americans across racial and ... the greatest impact on their day-to-day life, more ... memory, hearing and speech (57% of African-Americans, 49% ... of Hispanics). When asked which disease or ailment ... blindness ranked first among African-Americans followed by AIDS/HIV. ...
(Date:9/18/2014)... have devastated algal forests in the eastern Mediterranean Sea ... if their distribution continues to expand as the climate ... international team of researchers led by Dr Adriana Vergs ... Mediterranean Institute for Advanced Studies in Spain, is published ... the team surveyed more than 1000 kilometres of coastline ...
Breaking Biology News(10 mins):Scientists find how mysterious 'circular RNA' is formed, claim muscular dystrophy link 2Americans rate losing eyesight as having greatest impact on their lives 2Americans rate losing eyesight as having greatest impact on their lives 3Tropical fish a threat to Mediterranean Sea ecosystems 2
... of life -- kids get sick and have fevers. ... but in some small children they spark convulsions called ... very upsetting to parents," said Robert L. Macdonald, M.D., ... something of an enigma, he said. The epilepsy research ...
... development of drug-resistant HIV when patients take as few as ... only when patients take most of their pills. These differences ... "fitness" of the drug-resistant HIV, say AIDS researchers in a ... MPH, an AIDS specialist at the University of California, San ...
... Vaccine and Infectious Disease Organization (VIDO) have developed a vaccine ... against a disease for which no vaccines are yet available. ... this vaccination technique may be effective against HCV. The study ... , The team, funded by the Canadian Institutes of Health ...
Cached Biology News:Molecular mechanism may explain how fevers spark seizures 2Molecular mechanism may explain how fevers spark seizures 3Viral 'fitness' explains different resistance patterns to aids drugs 2U of S researchers develop new vaccine candidate against hepatitis C 2
(Date:9/19/2014)... light, rather than electricity, to move data would ... is a growing concern as chips, transistor counts ... optical circuits light emitters, modulators, and detectors ... promising light source for optical chips is molybdenum ... deposited as a single, atom-thick layer. Other experimental ...
(Date:9/19/2014)... 19, 2014  An entire month is dedicated to ... – Charcot-Marie-Tooth disease (CMT) – a debilitating neuromuscular disease ... muscle atrophy, weakness, and foot and hand deformities. CMT ... worldwide. CMT is a progressive disease, and over time ... mobility devices such as leg braces, wheelchairs and scooters ...
(Date:9/19/2014)... 19, 2014  Nektar Therapeutics (NASDAQ: ... characterizing the analgesic profiles of a series of ... agonist molecules. The preclinical research candidates were created ... The analgesic properties of kappa receptor ... 1,2 Kappa opioid receptors are expressed in ...
(Date:9/19/2014)... SPRINGS, Florida , September 19, 2014 ... companies release latest developments, patents and results of studies ... GNSZ), Eli Lilly and Company (NYSE: LLY ... Celgene Corporation (NASDAQ: CELG ) and Arena ... GNSZ), a leader in developing prodrug therapeutics for the ...
Breaking Biology Technology:Toward optical chips 2Toward optical chips 3September is Charcot-Marie-Tooth (CMT) Awareness Month - Scheduled events, activities and important partnerships announced throughout the month! 2Nektar Presents Positive Preclinical Data on Oral, Peripherally-Acting Kappa Agonist Molecules at 2014 American Academy of Pain Management Meeting 2Nektar Presents Positive Preclinical Data on Oral, Peripherally-Acting Kappa Agonist Molecules at 2014 American Academy of Pain Management Meeting 3Nektar Presents Positive Preclinical Data on Oral, Peripherally-Acting Kappa Agonist Molecules at 2014 American Academy of Pain Management Meeting 4Nektar Presents Positive Preclinical Data on Oral, Peripherally-Acting Kappa Agonist Molecules at 2014 American Academy of Pain Management Meeting 5Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 2Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 3Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 4Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 5Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 6Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 7
... SAN DIEGO, Oct. 28 Neurocrine Biosciences,(Nasdaq: NBIX ) announces the ... 2008 Financial Results, When: October 28, 2008 @ ... http://www.videonewswire.com/event.asp?id=52783 , How: Live over the Internet ... above., Contact: Claudia ...
... U.S. Phase II Study,of Nitazoxanide in Treatment-Naive Patients ... Oct. 28 Romark Laboratories, a privately,held biopharmaceutical ... at the upcoming 59th Annual Meeting of the ... also known as The,Liver Meeting(R), and the 50th ...
... Ziplex automated gene-expression system at the ... ... Molecular, a pioneer in,the development of cost-effective, easy-to-use gene-expression analysis,systems, ... L. Wittliff, a professor in the Department of,Biochemistry and Molecular ...
Cached Biology Technology:Romark Laboratories Announces Presentation of New Nitazoxanide Data at 59th Annual AASLD Meeting and 50th Anniversary IASL Meeting in San Francisco 2James L. Wittliff, Ph.D., FACB, to Present 'Predicting Breast Cancer Outcome with Gene Expression Signatures on the Ziplex(R) System' at the Association for Molecular Pathology Conference, October 30 2James L. Wittliff, Ph.D., FACB, to Present 'Predicting Breast Cancer Outcome with Gene Expression Signatures on the Ziplex(R) System' at the Association for Molecular Pathology Conference, October 30 3
... EVO96R and Freedom EVO384R are fast multi-channel ... in three different sizes, with a multi-channel ... deliver significant time saving, with true parallel ... setup of your assays with the Freedom ...
... are fast multi-channel pipetting platforms consisting of ... with a multi-channel head and a robotic ... with true parallel processing of sample plates ... with the Freedom EVOware program. ...
Prepared by multi-temperature ethanol fractionation with extensive charcoal treatment and dialysis.• Assay: ≥ 95 % (HPCE)• pH ~5.2 (10 mg/mL in 0.15 M NaCl)...
... Linkage: This CLS number is a ... match Cornings product number. If showing ... the old Sigma-Aldrich number (Z71,405-4) or ... Dim: diam. 60 mm volume ...
Biology Products: