Navigation Links
Solving the Medical Mystery of Cold Feet
Date:8/17/2012

By Lisa Esposito
HealthDay Reporter

FRIDAY, Aug. 17 (HealthDay News) -- If you've ever been booted out of bed because of your icy feet, new research may help explain your plight.

Scientists have pinpointed specific proteins within the skin's blood vessels that play a part in the body's reaction to cold stimuli, whether it's exposure to chilly weather or touching a frigid surface with your bare hand.

The body's response to cold is to cut off circulation to the extremities to preserve blood flow to warm the internal organs. But for some people, this response is too strong, or it occurs mistakenly.

In Raynaud's disease, for instance, as the body responds to cold or stress, blood vessels narrow in the fingers and toes, which may feel numb and turn from white to blue to red during an attack.

The researchers wanted to know more about the physiological mechanisms at work. The new study and an accompanying editorial appear in a recent issue of the American Journal of Physiology -- Cell Physiology.

The researchers used muscle cells from tiny blood vessels in skin-punch biopsies from healthy volunteers as well as muscle cells from an artery found in mouse tails with circulation similar to human skin.

"Our bodies are engineered by evolution to conserve heat and energy," explained Dr. Martin Michel, a professor at Johannes Gutenberg University in Germany, and the co-author of the editorial. "One way of doing this is limiting blood flow to the skin by making blood vessels constrict, and norepinephrine (a hormone and neurotransmitter) does this via alpha-adrenergic receptors on muscle cells in the blood vessel wall. But we only want this to happen when it is cold."

For some people, he said, it appears that the healthy reaction goes awry.

"The mechanisms get active at 'normal' outer temperature," Michel said. "This could involve too many alpha-adrenergic receptors or that the [temperatur
'/>"/>

Copyright©2012 ScoutNews,LLC.
All rights reserved  

Page: 1 2 3

Related medicine news :

1. Scientists solving the mystery of human consciousness
2. Grant awarded to help improve problem-solving skills for deaf and hard-of-hearing students
3. Solving the mystery of how cigarette smoking weakens bones
4. Physician Groups Call for Fewer Medical Tests
5. Weill Cornell Medical College establishes Center for Healthcare Informatics and Policy
6. CAM therapy combined with conventional medical care may improve treatment of lower back pain
7. Image share project gives patients and physicians anytime, anywhere access to medical images
8. Researchers determine vitamin D blood level for reducing major medical risks in older adults
9. Biomedical researchers receive Hartwell Foundation awards
10. Columbia University Medical Center and NY-Presbyterian experts at APA meeting
11. Fitness in Middle Age Lowers Medical Costs Later: Study
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Solving the Medical Mystery of Cold Feet
(Date:8/30/2014)... 30, 2014 According to Bloomberg ... that requires Takeda Pharmaceutical Co. and Eli Lilly & ... claims that the drugmakers concealed information about a risk ... The case, Allen v. Takeda Pharmaceuticals North America Inc. ... District of Louisiana (Lafayette).* , According to Bloomberg, Takeda ...
(Date:8/30/2014)... 2014 United Theological Seminary is pleased to ... the Master of Theological Studies (MTS). , ... designed for students who wish to pursue further academic study ... to serve the Church and community. Previously, students needed to ... can attend classes from any location where there is an ...
(Date:8/30/2014)... August 30, 2014 Daily Gossip magazine ... keeps anxiety and panic attacks under control with a ... program review describes this new method as an ... panic attacks and overcome general anxiety related disorders. ... is the fact that it can be accessed by ...
(Date:8/30/2014)... (PRWEB) August 30, 2014 RB SEO ... cost SEO service for small businesses. , RBSEO Services ... cannot afford costly search engine optimization service. So, the ... small businesses into account. , On being asked ... have introduced this low cost SEO service because many ...
(Date:8/30/2014)... a common problem millions of American cope with every day. While ... for some, it can have a crippling impact on social activity ... mood swings and depression. , Those struggling with acne are ... some cases, that can make the problem even worse. Instead of ... quest for clearer skin can now view acne treatment reviews ...
Breaking Medicine News(10 mins):Health News:The Law Office of Melinda J. Helbock A.P.C. Comments on Decision to Uphold $9 Billion Actos Award 2Health News:United Theological Seminary Announces First Fully Online Degree 2Health News:Panic Away Review Reveals New Natural Remedy for Anxiety Patients 2Health News:RBSEO Services Introduces Low Cost SEO Service for Small Businesses 2Health News:Acne Treatment Reviews Added to Popular Treatment Website 2
... , BOSTON, Oct. 16 Dr. Sanjay Gupta, CNN chief ... Hill Community College "Compelling Conversations" speaker series. ... in the A300 auditorium. , A leader in ... to the CNN television shows "American Morning" and "House Call ...
... The European Society of Cardiology wishes to comment on ... authorise the sale of cigarettes on the internet, to ... denies that this is the intention, the news is ... last year,s smoking ban. ESC spokesperson Professeur Ph.Gabriel ...
... WASHINGTON, October 16, 2009 MedImmune announced today it ... Pediatrics (AAP) 2009 National Conference & Exhibition that add ... burden of respiratory syncytial virus (RSV) on children, as ... influenza and RSV becoming more widespread this time of ...
... Area School District in Bradford County today became the ... influenza vaccine to its student population, the Department of ... all parents that immunizations play a significant role in ... affecting school-aged children, with almost two-thirds of all cases ...
... double the national average, researchers say , FRIDAY, Oct. 16 ... Milwaukee,s poorest neighborhoods smoke -- more than twice the national ... even while most of the households reported earning less than ... that a large number of these low-income smokers hold beliefs ...
... Oct. 16 More Vermont physicians will be using ... patient care, under a $1 million federal grant secured ... by Leahy and Vermont Information Technology Leaders, Inc. (VITL), ... adopt health information technology. , In June, Vermont was ...
Cached Medicine News:Health News:CNN Medical Correspondent Sanjay Gupta to Speak at Bunker Hill Community College 2Health News:ESC press statement : Cigarettes on sale on the internet 2Health News:ESC press statement : Cigarettes on sale on the internet 3Health News:MedImmune to present data on RSV and influenza at 2009 AAP National Conference and Exhibition 2Health News:MedImmune to present data on RSV and influenza at 2009 AAP National Conference and Exhibition 3Health News:Pennsylvania Department of Health Announces First School to Begin Administering H1N1 Vaccine to Students 2Health News:Smoking Keeps Its Grip on Urban Poor 2Health News:Smoking Keeps Its Grip on Urban Poor 3Health News:Leahy Secures Funds to Support Adoption of Electronic Prescribing in Vermont 2Health News:Leahy Secures Funds to Support Adoption of Electronic Prescribing in Vermont 3Health News:Leahy Secures Funds to Support Adoption of Electronic Prescribing in Vermont 4Health News:Leahy Secures Funds to Support Adoption of Electronic Prescribing in Vermont 5
(Date:8/29/2014)... Utah , Aug. 29, 2014  BC Technical, ... has acquired Polaris Medical Imaging, a leader in sales, ... This strategic acquisition allows BC Technical to continue to ... specifically within MR and CT modalities. ... service," said Mark Alvarez , president and CEO ...
(Date:8/29/2014)... -- According to a new market ... (SFE, Cold Pressed, Organic Solvent, & Others), and by ... & Others) - Global Trends & Forecast to ... Amaranth Seed Oil Market with an analysis and ... value. The Amaranth Seed Oil Market size in ...
(Date:8/29/2014)...   Vittamed Corporation , a neurodiagnostics medical device company ... T. (Teo) Forcht Dagi , MD, DmedSc, MPH, MBA, ... " Teo Forcht Dagi is an ... and venture capital," said Remis Bistras , President and ... clinical, strategic, and entrepreneurial expertise to our Board." ...
Breaking Medicine Technology:BC Technical Acquires Polaris Medical Imaging 2Amaranth Seed Oil Market worth $700.6 Million by 2019 2Amaranth Seed Oil Market worth $700.6 Million by 2019 3Amaranth Seed Oil Market worth $700.6 Million by 2019 4Vittamed Adds Prominent Neurosurgeon and Venture Capitalist T. Forcht Dagi to Board of Directors 2
... March 30, 2011 MonoSol Rx, the developers ... specializing in proprietary pharmaceutical film products, today announced ... meeting with the U.S. Food and Drug Administration ... Soluble Film (OSF) under a 505(b)(2) pathway.  The ...
... 30, 2011 Cara Therapeutics, Inc. today announced the ... position of Chief Medical Officer.  In this role, Dr. ... lead drug candidate, CR845, a novel, peripherally-restricted kappa opioid ... treatment of post-operative pain. "We are delighted ...
Cached Medicine Technology:MonoSol Rx Secures 505(b)(2) Regulatory Pathway for Montelukast Sodium Oral Soluble Film 2MonoSol Rx Secures 505(b)(2) Regulatory Pathway for Montelukast Sodium Oral Soluble Film 3Cara Therapeutics Announces Appointment of James B. Jones, M.D., Pharm.D., as Chief Medical Officer 2Cara Therapeutics Announces Appointment of James B. Jones, M.D., Pharm.D., as Chief Medical Officer 3
4.625 inches, curved blade 4 mm....
Walton foreign body gouge 4 1/2 inches, round end....
... made from MMA/VP material and has a high ... supplied with the base curve and total diameter ... available in a power range of -30.00DS to ... protective and therapeutic applications including the controlled on-eye ...
... premium high water content ... permeability. Standard one fit ... the following therapeutic conditions: ... bullous keratopathy, recurrent ulcers, ...
Medicine Products: