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:12/10/2014)... , December 9, 2014 ... ITN,s BCARD Platform   ... enterprise meeting scheduling solutions for business-to-business (B2B) events, ... world leader in mobile near-field communication (NFC), Bluetooth ...      (Logo: http://photos.prnewswire.com/prnh/20140612/691055) , Jifflenow ...
(Date:12/5/2014)... -- Tute Genomics, a leader in cloud-based solutions for genome ... led by UK-based Eurovestech. Peak Ventures and a number ... "We are at a pivotal time in ... seeks new approaches for the diagnosis, treatment and prevention ... and CEO of Tute Genomics. "One of the main ...
(Date:12/3/2014)... 2014   Marvin Test Solutions , a ... for military, aerospace, and manufacturing organizations, today announced ... TS-900 PXI semiconductor test platform . The ... systems to customers at a fraction of the ... ATE. "Our semiconductor customers asked ...
Breaking Biology News(10 mins):Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 3Tute Genomics Raises $2.3 Million to Scale Up Cloud-Based Genome Analytics and Accelerate Personalized Medicine 2Tute Genomics Raises $2.3 Million to Scale Up Cloud-Based Genome Analytics and Accelerate Personalized Medicine 3Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 2Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 3
(Date:12/19/2014)... Today, TiFiber, Inc. announced ... and future company headquarters in Fort Smith, Arkansas ... that safely and effectively control dangerous microorganisms. Fort ... historic, strong support for manufacturing, but also due ... technology-based companies such as TiFiber. , In ...
(Date:12/19/2014)... In contrast to traditional LED lights where ... Valoya uses proprietary LED technology to incorporate their spectra ... which is critical in low proximity installations. The Valoya ... its lifetime which is up to four times longer ... investment cost was clearly higher when compared to traditional ...
(Date:12/19/2014)... , Dec. 18, 2014   ISN ... & Safety Performance Indicators publication series. With ... of activity reported in 2013 within its online contractor ... and safety key performance indicator (KPI) statistics. ... Clients, U.S. publication is available in two ...
(Date:12/17/2014)... TX (PRWEB) December 17, 2014 Achim ... and administration for Stoller Group. In this position, Noack ... Group, on administrative matters, develop marketing strategy and supervise ... services. , “Achim has tremendous knowledge and experience ... of Stoller Group. “His experience and innovative thinking will ...
Breaking Biology Technology:Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 2Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 3Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 4ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 2ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 3Achim Noack Joins Stoller Group as Global Vice President of Marketing and Administration 2
Cached News: