Navigation Links
Hair provides proof of the link between chronic stress and heart attack
Date:9/2/2010

Researchers at The University of Western Ontario have provided the first direct evidence using a biological marker, to show chronic stress plays an important role in heart attacks. Stressors such as job, marital and financial problems have been linked to the increased risk for developing cardiovascular disease including heart attack. But there hasn't been a biological marker to measure chronic stress. Drs. Gideon Koren and Stan Van Uum developed a method to measure cortisol levels in hair providing an accurate assessment of stress levels in the months prior to an acute event such as a heart attack. The research is published on-line in the journal Stress.

Cortisol is considered to be a stress hormone. Its secretion is increased during times of stress. Traditionally it's been measured in serum, urine and saliva, but that only shows stress at the time of measurement, not over longer periods of time. Cortisol is also captured in the hair shaft.

"Intuitively we know stress is not good for you, but it's not easy to measure," explains Dr. Koren, who holds the Ivey Chair in Molecular Toxicology at Western's Schulich School of Medicine & Dentistry. "We know that on average, hair grows one centimetre (cm) a month, and so if we take a hair sample six cm long, we can determine stress levels for six months by measuring the cortisol level in the hair."

In the study, hair samples three cm long were collected from 56 male adults who were admitted to the Meir Medical Centre in Kfar-Saba, Israel suffering heart attacks. A control group, made up of 56 male patients who were hospitalized for reasons other than a heart attack, was also asked for hair samples. Higher hair cortisol levels corresponding to the previous three months were found in the heart attack patients compared to the control group.

The prevalence of diabetes, hypertension, smoking and family history of coronary artery disease did not differ significantly betwee
'/>"/>

Contact: Kathy Wallis
kwallis3@uwo.ca
519-661-2111 x81136
University of Western Ontario
Source:Eurekalert

Page: 1 2

Related biology news :

1. Paleozoic sediment curve provides new tool for tracking sea-floor sediment movements
2. Field Museum provides gold standard for mammal survey
3. Study provides insight on a common heart rhythm disorder
4. Digital zebrafish embryo provides the first complete developmental blueprint of a vertebrate
5. Brain structure provides key to unraveling function of bizarre dinosaur crests
6. MU brain imaging center provides research for autism, schizophrenia and Parkinsons disease
7. Supercomputer provides massive computational boost to biomedical research at TGen
8. Innovative surgery by MSU veterinarian provides new lease on life to dogs
9. New method provides panoramic view of protein-RNA interactions in living cells
10. Discovery of giant roaming deep sea protist provides new perspective on animal evolution
11. Rare disease provides clues about enzyme role in arrhythmias
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... , Jan. 21, 2015  Analyst Report Issued by Small ... Brands report showed that planet-wide, transactions at merchants on the ... the total number of credit, debit, and prepaid cards reached ... were victims of fraudulent card usage in 2012, and credit ...
(Date:1/22/2015)... has launched its new NXG series of time clocks with ... higher standard for collecting attendance and labor data and complements ... touch screen interface and seamless connection to cloud-based iSolved, the ... for the small to mid-size employer. The G2 ...
(Date:12/22/2014)... , Dec. 22, 2014  The 2014 Holiday Season may ... Acuity Market Intelligence reports that the long anticipated floodgates ... that intensifying demand for smart phones, tablets, and wearable ... market of 2.5 billion users with nearly 4.8 billion ...
Breaking Biology News(10 mins):$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 2Infinisource's NXG series sets new time clock standard 2First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 2
... production of a protein called vasostatin may prove a promising ... of print in Gut. , Pancreatic cancer is the fifth ... is extremely difficult to treat. Only 3% of affected patients ... that has remained static for the past three decades. , ...
... scientists for the first time has detected a memory ... a single, new stimulus. The research, done with honeybees ... living brain and explore short-term memory as never before, ... on the report who is currently a postdoctoral research ...
... among American men. It is estimated ... six males will develop the disease during his lifetime. However, promising new ... One of the most innovative of these treatments is robotic-assisted laparoscopic prostatectomy ... one of only ...
Cached Biology News:Gene therapy potential for treatment of pancreatic cancer 2Team led by Carnegie Mellon University scientist finds first evidence of a living memory trace 2Team led by Carnegie Mellon University scientist finds first evidence of a living memory trace 3Penn Surgeons Use Completely Robotic Surgery to Successfully Treat Prostate Cancer 2Penn Surgeons Use Completely Robotic Surgery to Successfully Treat Prostate Cancer 3
(Date:1/22/2015)... Controlled Substance Compliance Services (CSCS), a project ... the legal requirements around using controlled substances in pharmaceutical ... As their international operations expand and become increasingly complex, ... as a result of the first phase of the ...
(Date:1/22/2015)... NJ (PRWEB) January 22, 2015 ... technologies such as the Bioruptor® and complete solutions ... system for chromatin immunoprecipitation, alleviating the need for ... and controls needed for ChIP of histones or ...
(Date:1/22/2015)... DIEGO , Jan. 22, 2015   Cypher ... and Sequenom, Inc. (NASDAQ: SQNM ), ... development agreement for next generation noninvasive prenatal tests ... genome interpretation technology, called Mantis™, to advance analysis ...
(Date:1/22/2015)... GenoSpace , a precision medicine software company that has developed ... of genomic, imaging and other biomedical data in research and ... , CEO of Aspera, an IBM Company, to its board ... "We are pleased to welcome Michelle ...
Breaking Biology Technology:Global Compliance Service for Controlled Substances to Expand to China 2Diagenode Launches Unique Semi-Automated Solution for Chromatin Immunoprecipitation 2Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4GenoSpace Expands Board with Appointment of Michelle Munson 2
... Jan. 9, 2012 diaDexus, Inc. (OTC Bulletin ... vitro diagnostic products addressing unmet needs in cardiovascular ... approximately $4.9 million, up 48% from the prior ... 2011 revenue to $16.4 million, up 39% over ...
...   Sigma-Aldrich Corporation (NASDAQ: ... announced it has signed an agreement to acquire BioReliance Holdings, ... Avista Capital Partners for $350 million in cash.  The acquisition ... is expected to close in the first quarter of 2012.  ...
... 2012  Idenix Pharmaceuticals, Inc. (NASDAQ: IDIX ), ... of drugs for the treatment of human viral diseases, ... clinical trial of IDX184, the Company,s lead product candidate ... IDX184, a pan-genotypic oral nucleotide polymerase inhibitor, has demonstrated ...
Cached Biology Technology:diaDexus, Inc. Pre-Announces 2011 Q4, YE Revenue and 2012 Guidance 2diaDexus, Inc. Pre-Announces 2011 Q4, YE Revenue and 2012 Guidance 3Sigma-Aldrich to Acquire BioReliance; Extending Its Reach into Biopharmaceutical Testing and Services 2Sigma-Aldrich to Acquire BioReliance; Extending Its Reach into Biopharmaceutical Testing and Services 3Sigma-Aldrich to Acquire BioReliance; Extending Its Reach into Biopharmaceutical Testing and Services 4Idenix Reports Positive Interim Data for HCV Nucleotide Inhibitor, IDX184 2Idenix Reports Positive Interim Data for HCV Nucleotide Inhibitor, IDX184 3Idenix Reports Positive Interim Data for HCV Nucleotide Inhibitor, IDX184 4Idenix Reports Positive Interim Data for HCV Nucleotide Inhibitor, IDX184 5
...
...
No description available in Ensembl. Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
... is designed to deparaffinize and perform Heat ... paraffin-embedded tissue sections mounted on glass microscope ... paraffin at the high temperature used in ... of the paraffin by detergent. Formaldehyde fixation ...
Biology Products: