-lrb- cnn -rrb- -- game show host and comedian howie mandel 's irregular heartbeat scare is over , his publicist said tuesday . howie mandel had an irregular heartbeat , but he did not have a heart attack , his publicist said . `` howie has been released from the hospital and will be back at work tomorrow , '' said lewis kay . `` he appreciates everyone 's concern . '' mandel , 53 , checked into a toronto hospital monday so doctors could monitor his condition , kay said . he was in toronto , filming segments for a new show `` howie do it . '' the hour-long prank show debuted on nbc friday . breathing in second-hand cigarette smoke has been shown to increase the risk of cancer in humans . now , researchers have shown that passive smoking affects plants too , which can take up nicotine from contaminated soil and plumes of smoke . the finding may explain why some spices , herbal teas and medicinal plants have high concentrations of nicotine in them , despite none being allowed in insecticides . researchers have shown that passive smoking affects plants too , which can take up nicotine from contaminated soil and plumes of smoke -lrb- illustrated with a stock image -rrb- . nicotine was frequently used as an insecticide until it was banned by the european union in 2009 because of its toxicity . china is poised for its biggest corruption case since mao zedong 's widow went on trial for treason with the rest of the ` gang of four ' . former national security chief zhou yongkang -- an ally of bo xilai , the top official jailed two years ago over the murder of briton neil heywood - is accused of corruption and leaking of state secrets , beijing prosecutors announced yesterday . he is likely to be found guilty , and could be executed . the all-powerful chinese communist party has always been reluctant to admit to any high level wrongdoing , despite growing murmurs that the greed of officials has been running out of control while the economy has been ballooning in size . trial : former national security chief zhou yongkang is embroiled in the biggest corruption case since mao zedong 's widow -lrb- pictured right -rrb- went on trial with the rest of the ` gang of four ' so the move to announce charges against zhou is being touted by official media as proof that the leadership is determined to take action -- although some commentators argue that it is simply a sign of internal divisions and score-settling between factions in the party . officially , however , zhou , 72 , is the highest-level official charged as part of president xi jinping 's anti-corruption campaign that began in late 2012 . mandel is the host of the american version of the game show `` deal or no deal , '' which has brought huge ratings for nbc . but a surprisingly large number of food crops and plant-derived products still contain very high levels of nicotine . dirk selmar and his colleagues at the technical university of braunschweig , germany , set out to uncover whether there are reasons for this beyond the use of illegal insecticides . if the trial proceeds as expected he will be the most senior politician to face court since the sensational 1981 trial of chairman mao 's widow , his fourth and last wife jiang qing , and the rest of the ` gang of four ' over claims they persecuted political opponents during the 1966-76 cultural revolution . a useful side effect of the case will be that it will destroy for ever any hopes zhou may have had of rivalling the party 's leadership . china 's supreme court last month said in a report that zhou and bo xilai had both engaged in political activities that damaged the unity of the ruling communist party . the wording left it unclear whether the two were being accused of plotting together or separately . but zhou is charged with ` huge ' bribe-taking , abuse of power and intentionally leaking state secrets . given his previous role as a security chief , there is scant sympathy for him . the china director of human rights watch , sophie richardson , said on twitter : ` zhou yongkang , pivotal in denying so many the right to a fair trial , wo n't get one himself . ' they used peppermint plants , which contain minimal traces of nicotine , in a series of mulching and fumigation experiments . he said : ` tremendously elevated nicotine levels were detected after fumigation with cigarette smoke . ' the researchers showed for the that that peppermint plants -lrb- a stock image is shown -rrb- can take up high concentrations of nicotine from contaminated soils , as well as taking in the drug from smoke . cats and dogs whose owners smoke are twice as likely to develop some types of cancer as those whose owners do not . dogs that are exposed to tobacco smoke are much more likely to develop nose and lung cancers than dogs not exposed to smoke . smaller pets and birds can also be affected as they are very sensitive to the effects of smoke . previous research , by tufts university , near boston , us , also found that cats that live with smokers are twice as likely to develop feline lymphoma , a serious cancer of the blood and immune system . it is believed that when cats groom themselves they ingest contaminated dust , soot , ash and nicotine which was caught in their fur . they also showed for the first time that that peppermint plants can take up high concentrations of nicotine from contaminated soils . the team analysed plants in soil mulched with cigarette tobacco for more than nine days to find that the resulting nicotine concentrations in them were several times higher than the maximum residue level set by european authorities . the study , published in springer 's journal agronomy for sustainable development , suggests that the reported high levels of this substance may indeed originate from tobacco . the researchers found a drastic decrease in nicotine concentration in plants as time progressed . this is likely because nicotine was taken up by the roots of the peppermint plants and processed in their leaves . ` our results suggest that the widespread occurrence of nicotine in medicinal , spice and food plants may , at least in part , be due to other nicotine sources apart from the illegal use of insecticides , ' dr selmar said . as well as being interesting to the food industry , the findings prove that substances such as alkaloids , can be transferred from one plant , after its death , to another . such ` horizontal transfer of natural products ' sheds light on the hitherto unexplained success behind farming practices such as crop rotation and the co-cultivation of certain vegetables .
technical university of braunschweig researchers analysed peppermint . found raised nicotine levels in plants subjected to cigarette smoke . also showed peppermint plants take up nicotine from contaminated soils . findings could explain high nicotine levels in some spices and teas .
-lrb- cnn -rrb- -- game show host and comedian howie mandel 's irregular heartbeat scare is over , his publicist said tuesday . howie mandel had an irregular heartbeat , but he did not have a heart attack , his publicist said . `` howie has been released from the hospital and will be back at work tomorrow , '' said lewis kay . `` he appreciates everyone 's concern . '' mandel , 53 , checked into a toronto hospital monday so doctors could monitor his condition , kay said . he was in toronto , filming segments for a new show `` howie do it . '' the hour-long prank show debuted on nbc friday . breathing in second-hand cigarette smoke has been shown to increase the risk of cancer in humans . now , researchers have shown that passive smoking affects plants too , which can take up nicotine from contaminated soil and plumes of smoke . the finding may explain why some spices , herbal teas and medicinal plants have high concentrations of nicotine in them , despite none being allowed in insecticides . researchers have shown that passive smoking affects plants too , which can take up nicotine from contaminated soil and plumes of smoke -lrb- illustrated with a stock image -rrb- . nicotine was frequently used as an insecticide until it was banned by the european union in 2009 because of its toxicity . china is poised for its biggest corruption case since mao zedong 's widow went on trial plant-derived products still contain very high levels of nicotine . dirk selmar and his colleagues at the technical university of braunschweig , germany , set out to uncover whether there are reasons for this beyond the use of illegal insecticides . if the trial proceeds as expected he will be the most senior politician to face court since the sensational 1981 trial of chairman mao 's widow , his fourth and last wife jiang qing , and the rest of the ` gang of four ' over claims they persecuted political opponents during the 1966-76 cultural revolution . a useful side effect of the case will be that it will destroy for ever any hopes zhou may have had of rivalling the party 's leadership . china 's supreme court last month said in a report that zhou and bo xilai had both engaged in political activities that damaged the unity of the ruling communist party . the wording left it unclear whether the two were being accused of plotting together or separately . but zhou is charged with ` huge ' bribe-taking , abuse of power and intentionally leaking state secrets . given his previous role as a security chief , there is scant sympathy for him . the china director of human rights watch , sophie richardson , said on twitter : ` zhou yongkang , pivotal in denying so many the right to a fair trial , wo n't get one himself . ' they used peppermint plants , which contain minimal traces of nicotine , in a series of mulching and fumigation experiments . he said : ` tremendously elevated nicotine levels were detected after fumigation with cigarette smoke . ' the researchers showed for the that that peppermint plants -lrb- a stock image is shown -rrb- can take up high concentrations of nicotine from contaminated soils , as well as taking in the drug from smoke . cats and dogs whose owners smoke are twice as likely to develop some types of cancer as those whose owners do not . dogs that are exposed to tobacco smoke are much more likely to develop nose and lung cancers than dogs not exposed to smoke . smaller pets and birds can also be affected as they are very sensitive to the effects of smoke . previous research , by tufts university , near boston , us , also found that cats that live with smokers are twice as likely to develop feline lymphoma , a serious cancer of the blood and immune system . it is believed that when cats groom themselves they ingest contaminated dust , soot , ash and nicotine which was caught in their fur . they also showed for the first time that that peppermint plants can take up high concentrations of nicotine from contaminated soils . the team analysed plants in soil mulched with cigarette tobacco for more than nine days to find that the resulting nicotine concentrations in them were several times higher than the maximum residue level set by european authorities . the study , published in springer 's journal agronomy for sustainable development , suggests that the reported high levels of this substance may indeed originate from tobacco . the researchers found a drastic decrease in nicotine concentration in plants as time progressed . this is likely because nicotine was taken up by the roots of the peppermint plants and processed in their leaves . ` our results suggest that the widespread occurrence of nicotine in medicinal , spice and food plants may , at least in part , be due to other nicotine sources apart from the illegal use of insecticides , ' dr selmar said . as well as being interesting to the food industry , the findings prove that substances such as alkaloids , can be transferred from one plant , after its death , to another . such ` horizontal transfer of natural products ' sheds light on the hitherto unexplained success behind farming practices such as crop rotation and the co-cultivation of certain vegetables .
the risk of cancer in humans . now , researchers have shown that passive smoking affects plants too , which can take up nicotine from contaminated soil and plumes of smoke . the finding may explain why some spices , herbal teas and medicinal plants have high concentrations of nicotine in them , despite none being allowed in insecticides . researchers have shown that passive smoking affects plants too , which can take up nicotine from contaminated soil and plumes of smoke -lrb- illustrated with a stock image -rrb- . nicotine was frequently used as an insecticide until it was banned by the european union in 2009 because of its toxicity . china is poised for its biggest corruption case since mao zedong 's widow went on trial for treason with the rest of the ` gang of four ' . former national security chief zhou yongkang -- an ally of bo xilai , the top official jailed two years ago over the murder of briton neil heywood - is accused of corruption and leaking of state secrets , beijing prosecutors announced yesterday . he is likely to be found guilty , and could be executed . the all-powerful chinese communist party has always been reluctant to admit to any high level wrongdoing , despite growing murmurs that the greed of officials has been running out of control while the economy has been ballooning in size . trial : former national security chief zhou yongkang is embroiled in the biggest corruption case since mao zedong 's plant-derived products still contain very high levels of nicotine . dirk selmar and his colleagues at the technical university of braunschweig , germany , set out to uncover whether there are reasons for this beyond the use of illegal insecticides . if the trial proceeds as expected he will be the most senior politician to face court since the sensational 1981 trial of chairman mao 's widow , his fourth and last wife jiang qing , and the rest of the ` gang of four ' over claims they persecuted political opponents during the 1966-76 cultural revolution . a useful side effect of the case will be that it will destroy for ever any hopes zhou may have had of rivalling the party 's leadership . china 's supreme court last month said in a report that zhou and bo xilai had both engaged in political activities that damaged the unity of the ruling communist party . the wording left it unclear whether the two were being accused of plotting together or separately . but zhou is charged with ` huge ' bribe-taking , abuse of power and intentionally leaking state secrets . given his previous role as a security chief , there is scant sympathy for him . the china director of human rights watch , sophie richardson , said on twitter : ` zhou yongkang , pivotal in denying so many the right to a fair trial , wo n't get one himself . ' they used peppermint plants , which contain minimal traces of nicotine , in a series of mulching and fumigation experiments . he said : ` tremendously elevated nicotine levels were detected after fumigation with cigarette smoke . ' the researchers showed for the that that peppermint plants -lrb- a stock image is shown -rrb- can take up high concentrations of nicotine from contaminated soils , as well as taking in the drug from smoke . cats and dogs whose owners smoke are twice as likely to develop some types of cancer as those whose owners do not . dogs that are exposed to tobacco smoke are much more likely to develop nose and lung cancers than dogs not exposed to smoke . smaller pets and birds can also be affected as they are very sensitive to the effects of smoke . previous research , by tufts university , near boston , us , also found that cats that live with smokers are twice as likely to develop feline lymphoma , a serious cancer of the blood and immune system . it is believed that when cats groom themselves they ingest contaminated dust , soot , ash and nicotine which was caught in their fur . they also showed for the first time that that peppermint plants can take up high concentrations of nicotine from contaminated soils . the team analysed plants in soil mulched with cigarette tobacco for more than nine days to find that the resulting nicotine concentrations in them were several times higher than the maximum residue level set by european authorities . the study , published in springer 's journal agronomy for sustainable development , suggests that the reported high levels of this substance may indeed originate from tobacco . the researchers found a drastic decrease in nicotine concentration in plants as time progressed . this is likely because nicotine was taken up by the roots of the peppermint plants and processed in their leaves . ` our results suggest that the widespread occurrence of nicotine in medicinal , spice and food plants may , at least in part , be due to other nicotine sources apart from the illegal use of insecticides , ' dr selmar said . as well as being interesting to the food industry , the findings prove that substances such as alkaloids , can be transferred from one plant , after its death , to another . such ` horizontal transfer of natural products ' sheds light on the hitherto unexplained success behind farming practices such as crop rotation and the co-cultivation of certain vegetables .
-lrb- cnn -rrb- -- game show host and comedian howie mandel 's irregular heartbeat scare is over, his publicist tuesday howie mandel had an irregular heartbeat, but did his publicist `` howie has released at, '' lewis kay. `` he appreciates everyone 's concern. '' mandel, 53 checked into a toronto hospital monday so doctors monitor, kay said. he was in toronto, filming segments `` howie do it. '' the hour-long prank show debuted nbc friday. breathing in second-hand cigarette smoke has cancer. now, researchers shown that passive smoking affects plants too, take nicotine from contaminated soil plumes. the finding may explain some spices, herbal teas medicinal plants high concentrations nicotine, despite none allowed insecticides researchers have shown that passive smoking affects plants too, which take nicotine from contaminated soil plumes -lrb- illustrated with a stock image -rrb- nicotine was frequently until the european union 2009 because. china is poised its biggest corruption case mao zedong 's widow went on treason with the rest the ` gang of four '. former national security chief zhou yongkang -- an ally bo xilai jailed two over briton neil heywood - is accused corruption leaking of, beijing prosecutors announced yesterday he is likely found, could executed. the all-powerful chinese communist party has always reluctant admit to any high level wrongdoing, despite growing murmurs the greed officials running out while ballooning in size trial : former national security chief zhou yongkang is embroiled the biggest corruption case since mao zedong 's widow -lrb- pictured right -rrb- went on with the rest the ` gang of four ' so the move announce charges is being touted official media proof the leadership determined take action -- although some commentators argue simply internal divisions score-settling between factions. officially, however, zhou, 72 is the highest-level official charged as part president xi jinping 's anti-corruption campaign that mandel is the host the american version the game show `` deal or, has brought huge ratings nbc. but a surprisingly large number food crops and plant-derived products still contain nicotine. dirk selmar and his colleagues the technical university braunschweig, germany, set uncover whether there reasons this beyond the use illegal insecticides. if the trial proceeds he the most senior politician court since the sensational 1981 trial chairman mao 's widow, his fourth and wife jiang qing rest the ` gang four over claims persecuted during the 1966-76 cultural revolution a useful side effect the case will destroy for ever any hopes zhou may rivalling the party 's leadership. china 's supreme court last said in zhou and bo xilai both engaged damaged the unity. the wording left it unclear two being accused plotting together separately. but zhou is charged ` huge ' bribe-taking, abuse intentionally leaking given his previous role a security chief, there scant sympathy. the china director of human watch, sophie richardson said on twitter : ` zhou yongkang, pivotal in denying so many the right, wo n't get one himself. ' they used peppermint plants, which contain minimal traces nicotine in a series mulching and fumigation experiments he said : ` tremendously elevated nicotine levels were after fumigation cigarette smoke. ' the researchers showed for the that that peppermint plants -lrb- a stock image is shown -rrb- can take high concentrations nicotine from contaminated soils, as taking in the drug from smoke. cats and whose owners smoke are twice some types. dogs that exposed tobacco smoke are much nose and lung cancers dogs not. smaller pets and birds can also affected as very smoke. previous research, by tufts university near boston us also found cats that smokers twice feline lymphoma a serious cancer. it believed when cats groom ingest contaminated dust, soot ash nicotine which was caught they also showed for that peppermint plants take high concentrations nicotine from contaminated soils. the team analysed plants soil mulched cigarette tobacco for more than nine days to that the resulting nicotine concentrations them several the maximum residue level set european authorities. the study, published springer 's journal agronomy for sustainable development suggests the reported high levels this substance indeed originate tobacco. the researchers a drastic decrease nicotine concentration plants as time. this likely because nicotine was taken up the roots the peppermint plants processed their leaves. ` our results suggest the widespread occurrence nicotine medicinal, spice and food plants, at other nicotine sources apart the illegal use insecticides ' dr selmar said. as well being interesting the food industry, the findings prove substances, can transferred, after its death. such ` horizontal transfer natural products ' sheds the hitherto unexplained success behind farming practices such crop rotation the cocultivation certain vegetables.
plant-derived products still contain very high levels of nicotine . dirk selmar and his colleagues at the technical university of braunschweig , germany , set out to uncover whether there are reasons for this beyond the use of illegal insecticides . if the trial proceeds as expected he will be the most senior politician to face court since the sensational 1981 trial of chairman mao 's widow , his fourth and last wife jiang qing , and the rest of the ` gang of four ' over claims they persecuted political opponents during the 1966-76 cultural revolution . a useful side effect of the case will be that it will destroy for ever any hopes zhou may have had of rivalling the party 's leadership . china 's supreme court last month said in a report that zhou and bo xilai had both engaged in political activities that damaged the unity of the ruling communist party . the wording left it unclear whether the two were being accused of plotting together or separately . but zhou is charged with ` huge ' bribe-taking , abuse of power and intentionally leaking state secrets . given his previous role as a security chief , there is scant sympathy for him . the china director of human rights watch , sophie richardson , said on twitter : ` zhou yongkang , pivotal in denying so many the right to a fair trial , wo n't get one himself . ' they used peppermint plants , which contain minimal traces of nicotine , in a series of mulching and fumigation experiments . he said : ` tremendously elevated nicotine levels were detected after fumigation with cigarette smoke . ' the researchers showed for the that that peppermint plants -lrb- a stock image is shown -rrb- can take up high concentrations of nicotine from contaminated soils , as well as taking in the drug from smoke . cats and dogs whose owners smoke are twice as likely to develop some types of cancer as those whose owners do not . dogs that are exposed to tobacco smoke are much more likely to develop nose and lung cancers than dogs not exposed to smoke . smaller pets and birds can also be affected as they are very sensitive to the effects of smoke . previous research , by tufts university , near boston , us , also found that cats that live with smokers are twice as likely to develop feline lymphoma , a serious cancer of the blood and immune system . it is believed that when cats groom themselves they ingest contaminated dust , soot , ash and nicotine which was caught in their fur . they also showed for the first time that that peppermint plants can take up high concentrations of nicotine from contaminated soils . the team analysed plants in soil mulched with cigarette tobacco for more than nine days to find that the resulting nicotine concentrations in them were several times higher than the maximum residue level set by european authorities . the study , published in springer 's journal agronomy for sustainable development , suggests that the reported high levels of this substance may indeed originate from tobacco . the researchers found a drastic decrease in nicotine concentration in plants as time progressed . this is likely because nicotine was taken up by the roots of the peppermint plants and processed in their leaves . ` our results suggest that the widespread occurrence of nicotine in medicinal , spice and food plants may , at least in part , be due to other nicotine sources apart from the illegal use of insecticides , ' dr selmar said . as well as being interesting to the food industry , the findings prove that substances such as alkaloids , can be transferred from one plant , after its death , to another . such ` horizontal transfer of natural products ' sheds light on the hitherto unexplained success behind farming practices such as crop rotation and the co-cultivation of certain vegetables .
 The text discusses how plant-derived products still contain high levels of nicotine, despite being marketed as nicotine-free. Researchers at the Technical University of Braunschweig in Germany found that certain plant-based products contained significant amounts of nicotine. The study highlights the need for stricter regulations and labeling requirements to ensure consumer safety.