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Tag: "tobacco" at biology news

Blood test may help signal tumor's remission, return in throat cancer patients

...that 7,550 Americans will die from it. Alcohol and tobacco use are the most important risk factors for head and neck cancers, with tobacco use accounting for 85 percent of the cases. Just last month, other NIH-supported doctors reported th...

Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring

...per day, the equivalent – based on blood levels of tobacco by-products – of an average human smoker, according to research previously published by one of the study's co-authors. Yauk and her colleagues found that the rate of Ms6-hm mutations in the smoking mice were 1.4 times higher than that of non-smoki...

Snoring in children might be an allergic type disease

...itis who were first born, were exposed to maternal tobacco smoke during the first year of life and/or who had asthma and/or eczema at age five years were more likely to snore. Breastfeeding, birth weight, body mass index at age 4.5 years and respiratory function whilst awake were found to be unrelated. ...

Children of smokers have more than 5 times higher levels of a nicotine toxin

...y 40% of under-fives are believed to be exposed to tobacco smoke at home, and smoke may be responsible for up to 6,000 deaths per year in young children. The authors say: ‘Babies and children are routinely exposed to cigarette smoking by their carers in their homes, without the legislative protection ava...

Smoking rate has plummeted in New York City

...cade with no progress, New York City increased the tobacco tax, eliminated smoking in virtually all workplace... Frieden -- “especially when they’re paired with a tobacco tax and smoke-free air legislation. With nearly a quarter of a million fewer smokers, New York City ...

For many insects, winter survival is in the genes

..., the walnut husk maggot, the apple maggot and the tobacco hornworm. Collectively, these species cause millions of dollars of damage annually. Hsp70 was active while all of the insects were in diapause. When Denlinger's team knocked out the Hsp70 gene that makes the heat-shock protein, the insects were...

Double the death rate from cirrhosis for 'blue collar' men

... disadvantaged. Professor Najman said reducing tobacco use and excessive alcohol consumption among the most socioeconomically disadvantaged should be an urgent national priority....

100 percent of pregnant women have at least one kind of pesticide in their placenta

... medical history, anthropometric information, age, tobacco habits, lifestyle and diet during pregnancy, among...low. Moreover, daily exercise and the avoidance of tobacco (which could also be a source of inadvertent exposure) are very important habits which help to contr...

Iowa State scientists demonstrate first use of nanotechnology to enter plant cells

...ogy to introduce DNA and chemicals to Arabidopsis, tobacco and corn plants. "The most tremendous advantage is that you can deliver several things into a plant cell at the same time and release them whenever you want," Torney said. "Until now, you were at nature’s mercy when you delivered a gene into a...

Whiteflies and plant viruses can help each other to speed up biological invasion

...y (called ZHJ1) on both virus-infected and healthy tobacco plants. Compared to its performance on healthy plants, the invasive B whitefly had higher fecundity and longevity by 12 and 6 fold when feeding on plants infected by one virus, and by 18 and 7 fold when feeding on plants infected by another virus. Po...

Indicators for risk of heart disease are higher in passive smokers

...tine intake. Since nicotine is highly specific for tobacco smoke, blood serum cotinine levels track exposure to tobacco smoke and its toxic components. Dr Andrea Venn, lead author of the study and associate professor ...

Migration played key role in HIV spread in South Africa

...e is linked to many of the same health problems as tobacco smoke, such as increased respiratory symptoms like... "While there is convincing data on the effects of tobacco smoke on pulmonary clinical outcomes, the effect of marijuana smoke has been poorly understood," sai...

Long-term marijuana smoking leads to respiratory complaints

...e is linked to many of the same health problems as tobacco smoke, such as increased respiratory symptoms like... "While there is convincing data on the effects of tobacco smoke on pulmonary clinical outcomes, the effect of marijuana smoke has been poorly understood," sai...

Smoking ban dramatically reduces air pollution in Irish pubs

...orld's first national smoking ban on environmental tobacco smoke exposure in 42 Dublin pubs and among 73 male... self-reported workplace exposure to environmental tobacco smoke was over 40 hours per week pre-ban, but dropped to about 25 minutes post-ban, showing a 99 per...

What recognizes what in plant disease resistance?

...rying a corresponding Avirulence (Avr) gene. In tobacco and its relatives, the N resistance protein confers resistance to infection by the Tobacco mosaic virus (TMV). The authors used N, and the TMV Avirulence gene, p50, to investigate the mechanism of gene-for-gene resistance. Contrary to current models,...

New cigarette designs don't offer lower predicted cancer risks

The tobacco company's description of its new cigarette brand s...king-related illnesses, including cancer." Another tobacco firm, in a print ad for the brand, has crowed "All of the taste ?Less of the toxins." But a study ...

Re-analysis of cigarettes confirms tobacco companies increased addictive nicotine 11 percent

... intensifying the concentration of nicotine in the tobacco but also by modifying several design features of c...ed drug delivery devices, designed to perpetuate a tobacco pandemic," said former Commissioner Koh. "Yet precise information about these products remains shrou...

Quitting smoking reduces risk of lung cancer mortality by 70 percent

...e importance of developing effective comprehensive tobacco control policies is highlighted by our research, which shows that if interventions only focus on prevention, then 160 million current smokers will die before 2050, with the vast majority of deaths occurring in China." "Inadequate knowledge of both...

Heavy smoking cuts women's chance of pregnancy -- even with donated oocytes

... real association it suggests that, paradoxically, tobacco constituents affect the uterus in different ways in different women, impairing implantation in some and having the opposite effect in others. "It is already known that there is paradoxical dose-dependent effect of nicotine on ovarian tissue. Mayb...

Environmental toxins may cause body's defenses to worsen lung disease

... happens repeatedly--such as through environmental tobacco or workplace exposures--it may cause the immune sy...nfections, and acrolein, an air pollutant found in tobacco smoke, smog and diesel exhaust--to determine how cells respond to infection and toxicant-induced cel...

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