Navigation Links
Researchers show that veins stiffen as we age

lexible than those of the younger adults," Farquhar said. "But we didn't know if that might be due to a functional process, such as a chronic constriction of the muscles around the veins, or if this decreased flexibility was due to some change in the structure of the veins themselves."

To find the answer, the researchers monitored the blood flow through each participant's veins in different scenarios that might constrict the veins, such as having one foot immersed in cold water, or while squeezing a handgrip. They also administered a nitroglycerin pill under the tongue of each participant to relax the veins. In each case, they found that the tests had no effect on the response of the veins in either age group.

"Thus, we think that the stiffening of our veins as we age is probably due to structural changes, such as a thickening of the vein walls," Farquhar said. "Hardening of the arteries is a good analogy for what is happening in our veins as we grow older."

So can we do anything to keep our veins limber as time marches on?

"While there have been no longitudinal studies of this yet, it's possible that regular exercise training may blunt age-related increases in vein stiffness," Farquhar notes.

In the second phase of the UD study, now under way, the research team wants to find out if the veins of people with high pressure are stiffer than the veins of people with normal blood pressure. Two doctoral students, Erin Delaney and Megan Wenner, are assisting with this portion of the research, which will examine both young and older adults with high blood pressure.

While high blood pressure is all too common among older adults, Farquhar said it can be harder to find young adults who already have the disease. However, several individuals already have been identified for the study, and the team hopes to have data to report in the next six months.

This research is both literally and figuratively "close to the heart
'"/>

Source:University of Delaware


Page: 1 2 3 4

Related biology news :

1. Researchers discover way to make cells in the eye sensitive to light
2. Researchers find how protein allows insects to detect and respond to pheromones
3. Researchers Uncover Key Step In Manufacture of Memory Protein
4. Researchers reveal the infectious impact of salmon farms on wild salmon
5. Researchers identify target for cancer drugs
6. Researchers discover molecule that causes secondary stroke
7. Researchers find missing genes of ancient organism
8. Researchers trace evolution to relatively simple genetic changes
9. Researchers add new tool to tumor-treatment arsenal
10. UF Researchers Map Bacterial Proteins That Cause Tooth Loss
11. VCU Researchers Identify Networks Of Genes Responding To Alcohol In The Brain

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Researchers show that veins stiffen age

(Date:11/30/2009)...tacle to HIV research is the virus,s exquisite spe...tists, traditional tools, like the humble lab mous...am of researchers writing in BioMed Central,s open...s assault on this problem by creating a mouse that...nfected with HIV. , George Kassiotis, from the D...
(Date:11/30/2009)...a colorless and odorless radioactive gas that is p... is a product of uranium decay and is found in tra...nd groundwater as well as building materials, plan...tration is expressed as the amount of radiation th...s in a liter of air; thus the units are picocuries...
(Date:11/26/2009)...rried out in eight European countries has shown th...isease pandemic could have a significant role in r...in the open access journal BMC Infectious Disease...days and weekends/holidays, finding that they were...m Hasselt and Antwerp University, Belgium, led a t...
Breaking Biology News(10 mins):A reductionist approach to HIV research 2Health Physics Society recommends considering action for indoor radon below current guidelines 2School closure could reduce swine flu transmission by 21 percent 2Healthy Diet Exercise Keeps Mind Sharp As You Age 51712 1Healthy Diet Exercise Keeps Mind Sharp As You Age 51712 2Healthy Diet Exercise Keeps Mind Sharp As You Age 51712 3Exponent to Announce Second Quarter 2009 Results 51709 1Roush Life Sciences Taylor to Chair MassMEDIC 51706 1Roush Life Sciences Taylor to Chair MassMEDIC 51706 2
... 22-30, Harbor Branch scientists, along with colle...arbor Branch Johnson-Sea-Link II submersible to ex... reefs between Florida and the Bahamas. The reefs ...st December by a University of Miami team using ad...coming expedition, which is funded largely by the ...
...hat molecule-of-all-trades, is famous for its role...s and serving as a universal solvent. , Now, res...demy of Sciences of the Czech Republic have uncove...enzymes, molecules which themselves play critical ...pplications. , The researchers, findings will be...
... a decade, the technique of distraction has been r...ctice in order to reduce pain associated with cert...based on the assumption that there is an important...with the amount of attention given to the harmful ... Distraction techniques are based on the patient,s...
Other Biology News:Drug discovery team to explore newly discovered deep-sea reefs 2Drug discovery team to explore newly discovered deep-sea reefs 3Rehydrate -- your RNA needs it 2Rehydrate -- your RNA needs it 3Virtual realities against pain 2
(Date:11/30/2009)..., 2009 An international team of applied scientist... have demonstrated compact, multibeam, and multi-w... the light spectrum (infrared). By contrast, typic...ed wavelength. The innovative multibeam lasers hav...chemical sensing pollution monitoring, optical wir...
(Date:11/30/2009)...OR, N.Y., Nov. 30 Good Publication...e publication of company-sponsored medical researc...Medical Journal (BMJ). "The publication of GPP2 in...oviding support and guidance for industry sponsore... the peer-reviewed medical literature," said Chris...
(Date:11/30/2009)...30 BioMarin Pharmaceutic...Food and Drug Administration (FDA) has granted orp...DAP), amifampridine phosphate, for the rare autoim...MS). 3,4-DAP has previously received orphan drug ...e Committee for Medicinal Products for Human Use o...
(Date:11/30/2009)... November 30 ApaTech, the rapidly ... fastest growing,Biotech/Pharmaceutical/Medical Te...chnology Fast 500 for EMEA (Europe, Middle East an... on a companies, five-year revenue growth,for whi... period. This,achievement places ApaTech 9th overa...
Breaking Biology Technology:Scientists demonstrate multibeam, multi-functional lasers 2ISMPP Announces Publication of Good Publication Practice for Communicating Company-Sponsored Medical Research: GPP2 Guidelines Published in the BMJ 2ISMPP Announces Publication of Good Publication Practice for Communicating Company-Sponsored Medical Research: GPP2 Guidelines Published in the BMJ 3FDA Grants Orphan Drug Designation for 3,4-DAP for LEMS 2FDA Grants Orphan Drug Designation for 3,4-DAP for LEMS 3FDA Grants Orphan Drug Designation for 3,4-DAP for LEMS 4ApaTech is Europe's Fastest Growing Lifescience Company 2ApaTech is Europe's Fastest Growing Lifescience Company 3ApaTech is Europe's Fastest Growing Lifescience Company 4
...MINNEAPOLIS, July 3 The Eniva Research Group has,...ld-famous Linus Pauling,Micronutrient Research Ins...ed the Eniva Health Supplement VIBE(R) possessed D...lls. This third party testing was,performed as par...entify,mechanisms by which the Eniva VIBE nutraceu...
...LIBERTY CORNER, N.J., July 3 On June 27, 2008,Gen... and Drug,Administration (FDA) for its Epoprosteno..., Epoprostenol for Injection 1.5 mg is indicated ... pulmonary hypertension and pulmonary,hypertension...se in NYHA,Class III and Class IV patients who do ...
...CHICAGO, July 3 Advanced Life Sciences,Holdings, ... engaged in the,discovery, development and commerc... of infection, cancer and respiratory diseases, to...rocap(R) Index after the,Russell Investment Group ...obal equity indexes on June 27, 2008., (Logo: ht...
Other Biology Technology:Eniva VIBE(R) Nutraceutical Tested at Linus Pauling Micronutrient Research Institute and Found to Possess DNA Protective Properties 2GeneraMedix Inc. Receives Approval for Epoprostenol for Injection 1.5 mg 2Advanced Life Sciences Added to Russell Microcap Index 2Advanced Life Sciences Added to Russell Microcap Index 3
Mouse Anti-Rhodopsin Monoclonal Antibody, Unconjugated, Clone RET-P1 from GeneTex
...noassay Stabilizer is an aqueous solution that con...c chemicals in a PBS buffer (phosphate buffered sa... a preservative. StabilCoat Immunoassay Stabilize... protein components in immunoassays and can be use...
Attofluor cell chamber from Molecular Probes (Invitrogen)
...es enterprise-scale sequence analysis software wit...ompute-intensive bioinformatics analyses. With DeC...ur desktop: BLAST 300,000 ESTs vs NCBI NT databas...kb) to genomic DNA Use HMM analysis to compare 1...
Biology Products: