Navigation Links
Bacteria in Household Dust May Trigger Asthma Symptoms

New research shows that bacteria lurking in household dust produce chemicals that may trigger asthma and asthma-related symptoms such as wheezing. These bacterial chemicals, called endotoxins, particularly those found on bedroom floors, were linked with increased respiratory problems in adults. This study, supported by the National Institute of Environmental Health Sciences (NIEHS), a part of the National Institutes of Health, is the first nationwide study of endotoxins in the household environment, and it involved analysis of more than 2,500 dust samples from 831 homes across the U.S.

Researchers at NIEHS and the University of Iowa found a strong association between endotoxin levels and the prevalence of diagnosed asthma, asthma symptoms, asthma medication use, and wheezing. These relationships were strongest for bedroom floor and bedding dust. Households with higher endotoxin concentrations experienced higher prevalence of respiratory symptoms.

Endotoxins are found in the cell wall of bacteria and are only released when bacteria ruptures or disintegrates. Because bacteria can be found everywhere in the home, the likelihood of their release is high. Once released, endotoxins can cause inflammation of the airways and lead to asthma symptoms.

The study, published online in the American Journal of Respiratory and Critical Care Medicine, was conducted using samples from The National Survey of Lead and Allergens in Housing (NSLAH).

Two research assistants visited each household, administered a detailed questionnaire, conducted a home inspection, and used a standardized protocol to collect samples. Dust samples were collected from bedroom, kitchen and living room floors, bedding, and upholstered furniture and assayed for endotoxin. A disease association analysis was performed to correlate endotoxin concentrations to specific health outcomes.

“When we analyzed the dust samples, we found that kitchen and living room floors had the hig
'"/>

Source:NIH


Page: 1 2 3

Related biology news :

1. Bacteria collection sheds light on urinary tract infections
2. Solution to Pollution: New Bacteria Eats Toxic Waste
3. The Bacterias guide to survival
4. UF Researchers Map Bacterial Proteins That Cause Tooth Loss
5. Bacterial genome sheds light on synthesizing cancer-fighting compounds
6. Where Bacteria Get Their Genes
7. Bacteria feed on smelly breath (and feet)
8. New insight into autoimmune disease: Bacterial infections promote recognition of self-glycolipids
9. Bacteria use hosts immune response to their competitive advantage
10. Say what? Bacterial conversation stoppers
11. Bacteria are key to green plastics, drugs
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Bacteria Household Dust May Trigger Asthma Symptoms

(Date:12/15/2014)... --Research and Markets ( http://www.researchandmarkets.com/research/87pph8/global_facial ) ... Facial Recognition Market 2015-2019" report to their ... Facial recognition is a technology used ... measures the overall facial feature of a person ... distance between eyes. Facial recognition is used for ...
(Date:12/11/2014)... ST. PAUL, Minn. , Dec. 10, 2014 ... in wireless physiologic monitoring, has released a new ... changing needs of preclinical toxicology researchers. M series, ... to help toxicologists collect the best possible physiologic ... studies. Adding functional endpoints to toxicology ...
(Date:12/10/2014)... Dec. 9, 2014 CIE San Diego has ... provides the connective tissue that enhances care coordination among ... easily share client-level information; earned a second $1 million ... organizations serving seniors aging in community and; will be ... December 11 th 4-6p. CIE San ...
Breaking Biology News(10 mins):Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3New telemetry implants expected to change how large animal toxicology studies are conducted 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 3Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 4
... the University of California, San Diego developed an explanation ... others in the brains of people with Alzheimer,s disease. ... on November 21, come from detailed models of ... at the UC San Diego Jacobs School of Engineering. ...
... Century of Change, literally took 100 years to write. The ... 1906-1909. It was repeated from 1956-1958 and a technical book ... of that first survey was approaching, ornithologists Mike Ward, Jeff ... opportunity to do it again and write a book, this ...
... to the seafloor provide a feast for deep-sea animals ... such "whale falls" were homes for unique animals that ... in Monterey Canyon, researchers from the Monterey Bay Aquarium ... at these sites were not unique to whale falls, ...
Cached Biology News:Metabolism models may explain why Alzheimer's disease kills some neuron types first 2Metabolism models may explain why Alzheimer's disease kills some neuron types first 3New book on 100 years of Illinois birds 2New book on 100 years of Illinois birds 3New book on 100 years of Illinois birds 4Fleshing out the life histories of dead whales 2Fleshing out the life histories of dead whales 3Fleshing out the life histories of dead whales 4
(Date:12/22/2014)... Dec. 22, 2014  ( www.competitivehealth.com ) — Competitive ... medical bill review and advocacy service, has signed an ... WellCard Savings discount health services marketplace. 63% ... more than they expected to pay. As part of ... costs, WellCard Savings is pleased to offer medical bill ...
(Date:12/22/2014)... 22, 2014 Fertility Associates of Memphis ... Bank USA , a network of more than 20 ... partnership, patients have fast access to a national pool ... IVF . Fertility Associates of Memphis is the only ... treatment option. , Dr. William Kutteh , director ...
(Date:12/19/2014)... BioPlus Specialty Pharmacy (BioPlus), one ... of Nick Maroulis, Pharm.D. to the newly created position ... In this position, Dr. Maroulis will continue to manage ... of our multi-site pharmacies as the company expands. Dr. ... that time he has served in many different capacities ...
(Date:12/19/2014)... Dec. 19, 2014 Bina Technologies, Inc. (Bina, ... that they have been acquired by Roche (SIX: RO, ... privately held company that provides a big data platform ... (NGS) data for the academic and translational research markets. ... and will continue to focus on development of their ...
Breaking Biology Technology:WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3BioPlus Specialty Pharmacy Promotes Dr. Nick Maroulis to Vice President of Specialty Pharmacy Services 2Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3
... healthcare system may undermine any progress in patient care made ... a featured speaker at this week's Digital Healthcare Conference ... president and CEO of the University of Wisconsin Medical Foundation, ... healthcare delivery. As he outlined the remaining barriers to the ...
... Household planning will accomplish more in preparing ... avian flu than will any reliance on information technology, ... were told. , ,Panelists talked about being three years ... mitigate the effects of a flu pandemic, which would ...
... told a gathering of health professionals attending the eHealth ... the first state to have a fully integrated electronic ... overcome barriers. , ,Speaking before a group of healthcare ... the state's eHealth Initiative, Doyle said those barriers include ...
Cached Biology Technology:U.S. health system could undermine EHR progress 2U.S. health system could undermine EHR progress 3IT may take a back seat in fighting avian flu 2IT may take a back seat in fighting avian flu 3IT may take a back seat in fighting avian flu 4Doyle asks health professionals to overcome barriers 2Doyle asks health professionals to overcome barriers 3
... Large (Klenow) Fragment, Exonuclease Minus, is a ... 5´→3´ and the 3´→5´ exonuclease activities present ... (1,2). It is used for random primer ... (5). Klenow Fragment, Exonuclease Minus, will leave ...
... 8-iso PGE2 is one of several isoprostanes ... is a potent renal vasoconstrictor in the rat. ... with IC50 values of 0.5 and 5 µM, ... the rat at a concentration of 4 mg/kg/min, ...
DNA Polymerase I Large (Klenow) Fragment is a DNA polymerase that lacks the 5'Cut Site3' exodeoxyribonuclease activity of intact DNA Polymerase I but it contains the 3'Cut Site5' exodeoxyribonuclease...
... offers both high-speed and high-volume versatility ... rotor options, making it ideal for a ... Versatility , High-speed (up to 15,000 ... high-volume (4 x 250mL) swinging bucket rotors ...
Biology Products: