HOME >> BIOLOGY >> NEWS
Cigarette smoke exacerbates alcohol's effects on defense against Streptococcus pneumoniae

  • Streptococcus pneumoniae is a bacterium that causes a number of infections, including pneumonia.
  • Alcoholics and cigarette smokers are particularly susceptible to pulmonary infections caused by S. pneumoniae.
  • New research has found that alcohol consumption alone can increase movement of S. pneumoniae toward the lungs, and that smoke exposure exacerbates alcohol's effects.

Streptococcus pneumoniae is a bacterium that can infect the upper respiratory tract and cause pneumonia, as well as infections in other parts of the body such as the bloodstream (bacteremia), lining of the brain and spinal cord (meningitis), bones (osteomyelitis), joints (arthritis), ears (otitis media) and sinuses (sinusitis). Alcoholics and cigarette smokers are particularly susceptible to pulmonary infections caused by S. pneumoniae. A rodent study in the May issue of Alcoholism: Clinical & Experimental Research has found that alcohol consumption increases movement of S. pneumoniae toward the lungs, and that smoke exposure exacerbates the alcohol-induced increase in bacterial penetration.

"All of the infections caused by S. pneumoniae start with the bacterium colonizing or binding to cells in the upper part of the nose, which is called the nasopharynx," said Gentry-Nielsen, professor of microbiology and immunology at Creighton University School of Medicine, research microbiologist at the Omaha Veterans Affairs Medical Center, and corresponding author for the study. "The trachea that leads from the nasopharynx to the lungs is lined with cells that have hair-like projections called cilia. These cilia beat in an upward direction to sweep mucus and microorganisms like S. pneumoniae upward and prevent their movement into the lungs. Disease normally occurs when the immune system is compromised or the person is colonized with a new or especially virulent strain of S. pneumoniae that
'"/>


15-May-2005


Page: 1 2 3 4

Related biology news :

1. Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring
2. Cigarette smoke blocks cell repair mechanism, University of Florida study shows
3. Cigarette smoke reduces transport of hamster eggs
4. Cigarette smoking exacerbates alcohol-induced brain damage
5. Cigarette smoke a culprit in poor healing and increased scarring
6. Children of smokers have more than 5 times higher levels of a nicotine toxin
7. Study confirms the risk of exposure to secondhand tobacco smoke outdoors
8. Good vibrations from deep-sea smokers may keep fish out of hot water
9. Exercise can reduce a smokers lung cancer risk, but quitting smoking is still most important
10. Successful lung cancer surgery not enough to break nicotine dependence in many smokers
11. PET imaging shows young smokers quick benefit of quitting

Post Your Comments:
(Date:10/30/2014)... October 2014 Biological membranes are mainly composed of ... of solution ions onto lipid membranes helps clarify ... study provides a quantitative description of the equilibria ... Kotyńska and Zbigniew Figaszewski from the University of ... describing these findings, just published in EPJ ...
(Date:10/29/2014)... Beaverton, OR) New research presented at the ... in Houston, TX showed for the first time ... in women using a readily available nutritional supplement, ... by Dr. Judith A. Smith, Pharm.D., associate professor ... Sciences at The University of Texas Health Science ...
(Date:10/29/2014)... all the rage. Thousands of scientists worldwide are conducting ... titanium dioxide nanoparticles from sun creams can get through ... from electronic products are as hazardous for the lungs ... food can get into the blood via the intestinal ... are flowing – and the number of scientific projects ...
Breaking Biology News(10 mins):Ion adsorption matter in biology 2HPV infections in women eradicated by AHCC, Japanese mushroom extract 2Nanosafety research: The quest for the gold standard 2Nanosafety research: The quest for the gold standard 3
(Date:10/26/2014)... (PRWEB) October 26, 2014 The ... Routers, ADC, Network Security Equipment, WAN Optimization Appliances]: ... and segments the data center networking market into ... of revenues. The report also identifies the factors ... opportunities impacting it along with the future roadmaps. ...
(Date:10/25/2014)... 25, 2014 The report “Adipic ... by Geography - Global Trends & Forecast to ... respect to market drivers, opportunities, and trends in ... and 27 figures spread through 217 slides and ... Trends & Forecast to 2019”., http://www.marketsandmarkets.com/Market-Reports/adipic-acid-269.html , ...
(Date:10/25/2014)... BioProcess International (BPI), a business-to-business ... BioProcess International Awards. The awards celebrate the outstanding ... technology applications that will allow the industry to ... patient base. , Winners and finalists were honored ... entertaining and exciting awards dinner and ceremony yesterday ...
(Date:10/25/2014)... Iowa (PRWEB) October 24, 2014 ... Perdue plans to more than double the acreage ... in geographies supplying its soybean crush facility in ... from this program will target several markets including ... alternatives with good performance. , For the 2015 ...
Breaking Biology Technology:Data Center Networking Market by Ethernet Switches, SAN & Routers Worth $21.85 Billion by 2018 - New Report by MarketsandMarkets 2Data Center Networking Market by Ethernet Switches, SAN & Routers Worth $21.85 Billion by 2018 - New Report by MarketsandMarkets 3Data Center Networking Market by Ethernet Switches, SAN & Routers Worth $21.85 Billion by 2018 - New Report by MarketsandMarkets 4Adipic Acid Market Estimated to Grow $7,539.2 Million by 2019 - Report by MarketsandMarkets 2Adipic Acid Market Estimated to Grow $7,539.2 Million by 2019 - Report by MarketsandMarkets 3Adipic Acid Market Estimated to Grow $7,539.2 Million by 2019 - Report by MarketsandMarkets 4BioProcess International Announces Winners of the 2014 BioProcess International Awards 2BioProcess International Announces Winners of the 2014 BioProcess International Awards 3BioProcess International Announces Winners of the 2014 BioProcess International Awards 4BioProcess International Announces Winners of the 2014 BioProcess International Awards 5DuPont Pioneer, Perdue AgriBusiness Announce Plans to Double Acreage for the 2015 Plenish® High Oleic Soybean Program 2DuPont Pioneer, Perdue AgriBusiness Announce Plans to Double Acreage for the 2015 Plenish® High Oleic Soybean Program 3DuPont Pioneer, Perdue AgriBusiness Announce Plans to Double Acreage for the 2015 Plenish® High Oleic Soybean Program 4
Cached News: