People Carries A Few Hundred Types Of Bacteria.
If you were to thrash from vegetarianism to meat-eating, or vice-versa, chances are the formula of your gut bacteria would also undergo a big change, a altered study suggests. The research, published Dec 11, 2013 in the annual Nature, showed that the number and kinds of bacteria - and even the way the bacteria behaved - changed within a daytime of switching from a normal diet to eating either animal- or plant-based foods exclusively. "Not only were there changes in the plenteousness of different bacteria, but there were changes in the kinds of genes that they were expressing and their activity," said swot author Lawrence David, an assistant professor at the Institute for Genome Sciences and Policy at Duke University.
Trillions of bacteria last in each person's gut. They're thought to play a impersonation in digestion, immunity and possibly even body weight. The study suggests that this bacterial community and its genes - called the microbiome - are extraordinarily limber and capable of responding swiftly to whatever is coming its way. "The strip microbiome is potentially quite sensitive to what we eat. And it is receptive on time scales shorter than had previously been thought, however, that it's hard to rag out exactly what that might mean for human health.
Another expert agreed. "It's nice to have some solid fact now that these types of significant changes in diet can impact the gut microflora in a significant way," said Jeffrey Cirillo, a professor of microbial and molecular pathogenesis at the Texas Aandamp;M Health Science Center College of Medicine in Bryan, Texas. "That's very trim to see, and it's very rapid. It's surprising how smart the changes can occur".
Showing posts with label bacteria. Show all posts
Showing posts with label bacteria. Show all posts
Wednesday 1 January 2020
Tuesday 31 December 2019
Excessive Use Of Antibiotics In Animal Husbandry Creates A Deadly Intestinal Bacteria
Excessive Use Of Antibiotics In Animal Husbandry Creates A Deadly Intestinal Bacteria.
The make an effort of E coli bacteria that this month killed dozens of populate in Europe and sickened thousands more may be more brutal because of the way it has evolved, a new swot suggests. Scientists say this strain of E coli produces a particularly noxious toxin and also has a gluey ability to hold on to cells within the intestine. This, alongside the fact that it is also resistant to many antibiotics, has made the ostensible O104:H4 strain both deadlier and easier to transmit, German researchers report.
And "This ancestry of E coli is much nastier than its more common cousin E coli O157, which is spiteful enough - about three times more virulent," said Hugh Pennington, emeritus professor of bacteriology at the University of Aberdeen in Scotland and originator of an accompanying editorial published online June 23, 2011 in The Lancet Infectious Diseases. Another study, published the same prime in the New England Journal of Medicine, concludes that, as of June 18, 2011, more than 3200 common people have fallen trouble in Germany due to the outbreak, including 39 deaths.
In fact, the German descent - traced to sprouts raised at a German organic farm - "was honest for the deadliest E coli outbreak in history. It may well be so nasty because it combines the virulence factors of shiga toxin, produced by E coli O157, and the workings for sticking to intestinal cells second-hand by another strain of E coli, enteroaggregative E coli, which is known to be an important cause of diarrhea in poorer countries".
Shiga toxin can also worker spur what doctors call "hemolytic uremic syndrome," a potentially disastrous form of kidney failure. In the New England Journal of Medicine study, German researchers approximately that 25 percent of outbreak cases involved this complication. The bottom line, according to Pennington: "E coli hasn't gone away. It still springs surprises".
To upon out how this overburden of the intestinal bug proved so lethal, researchers led by Dr Helge Karch from the University of Munster feigned 80 samples of the bacteria from affected patients. They tested the samples for shiga toxin-producing E coli and also for perniciousness genes of other types of E coli.
The make an effort of E coli bacteria that this month killed dozens of populate in Europe and sickened thousands more may be more brutal because of the way it has evolved, a new swot suggests. Scientists say this strain of E coli produces a particularly noxious toxin and also has a gluey ability to hold on to cells within the intestine. This, alongside the fact that it is also resistant to many antibiotics, has made the ostensible O104:H4 strain both deadlier and easier to transmit, German researchers report.
And "This ancestry of E coli is much nastier than its more common cousin E coli O157, which is spiteful enough - about three times more virulent," said Hugh Pennington, emeritus professor of bacteriology at the University of Aberdeen in Scotland and originator of an accompanying editorial published online June 23, 2011 in The Lancet Infectious Diseases. Another study, published the same prime in the New England Journal of Medicine, concludes that, as of June 18, 2011, more than 3200 common people have fallen trouble in Germany due to the outbreak, including 39 deaths.
In fact, the German descent - traced to sprouts raised at a German organic farm - "was honest for the deadliest E coli outbreak in history. It may well be so nasty because it combines the virulence factors of shiga toxin, produced by E coli O157, and the workings for sticking to intestinal cells second-hand by another strain of E coli, enteroaggregative E coli, which is known to be an important cause of diarrhea in poorer countries".
Shiga toxin can also worker spur what doctors call "hemolytic uremic syndrome," a potentially disastrous form of kidney failure. In the New England Journal of Medicine study, German researchers approximately that 25 percent of outbreak cases involved this complication. The bottom line, according to Pennington: "E coli hasn't gone away. It still springs surprises".
To upon out how this overburden of the intestinal bug proved so lethal, researchers led by Dr Helge Karch from the University of Munster feigned 80 samples of the bacteria from affected patients. They tested the samples for shiga toxin-producing E coli and also for perniciousness genes of other types of E coli.
Friday 27 December 2019
New Treatments For Asthma
New Treatments For Asthma.
Researchers claim they've discovered why infants who complete in homes with a dog are less likely to develop asthma and allergies later in childhood. The yoke conducted experiments with mice and found that exposing them to dust from homes where dogs live triggered changes in the community of microbes that actual in the infant's gut and reduced immune system feedback to common allergens. The scientists also identified a specific species of gut bacteria that's critical in protecting the airways against allergens and viruses that cause respiratory infections, according to the study published online Dec 16, 2013 in the Proceedings of the National Academy of Sciences.
While these findings were made in mice, they're also favoured to untangle why children who are exposed to dogs from the time they're born are less able to have allergies and asthma, the University of California, San Francisco (UCSF) and University of Michigan researchers said. These results also suggest that changes in the deep-seated bacteria community (gut microbiome) can influence immune function elsewhere in the body, said study co-leader Susan Lynch, an fellow professor in the gastroenterology division at UCSF.
Researchers claim they've discovered why infants who complete in homes with a dog are less likely to develop asthma and allergies later in childhood. The yoke conducted experiments with mice and found that exposing them to dust from homes where dogs live triggered changes in the community of microbes that actual in the infant's gut and reduced immune system feedback to common allergens. The scientists also identified a specific species of gut bacteria that's critical in protecting the airways against allergens and viruses that cause respiratory infections, according to the study published online Dec 16, 2013 in the Proceedings of the National Academy of Sciences.
While these findings were made in mice, they're also favoured to untangle why children who are exposed to dogs from the time they're born are less able to have allergies and asthma, the University of California, San Francisco (UCSF) and University of Michigan researchers said. These results also suggest that changes in the deep-seated bacteria community (gut microbiome) can influence immune function elsewhere in the body, said study co-leader Susan Lynch, an fellow professor in the gastroenterology division at UCSF.
Thursday 16 November 2017
Awareness Against The Global Problem Of Antibiotic Resistance
Awareness Against The Global Problem Of Antibiotic Resistance.
Knowing when to play antibiotics - and when not to - can worker fight the rise of deadly "superbugs," about experts at the US Centers for Disease Control and Prevention. About half of antibiotics prescribed are expendable or inappropriate, the agency says, and overuse has helped create bacteria that don't respond, or rejoin less effectively, to the drugs used to fight them. "Antibiotics are a shared resource that has become a few and far between resource," said Dr Lauri Hicks, a medical epidemiologist at the CDC.
She's also medical manager a of new program, Get Smart: Know When Antibiotics Work, that had its launch this week. "Everyone has a situation to play in preventing the spread of antibiotic resistance". The stakes are high, said Dr Arjun Srinivasan, CDC's affiliated director for health care-associated infection barring programs. Almost every type of bacteria has become stronger and less responsive to antibiotic treatment.
The CDC is urging Americans to use the drugs decently to help prevent the global problem of antibiotic resistance. To that end, the US Food and Drug Administration (FDA), numerous resident medical and controlled associations, as well as state and local health departments have collaborated on the CDC's Get Smart initiative.
Most strains of antibiotic-resistant bacteria are still found in form care settings, such as hospitals and nursing homes. Yet superbugs, including MRSA (methicillin-resistant staphylococcus aureus) - which kills about 19000 Americans a year - are increasingly found in community settings, such as haleness clubs, schools, and workplaces, said Hicks.
Community-associated MRSA (CA-MRSA), a purify that affects nutritious people outside of hospitals, made headlines in 2008, when it killed a Florida costly school football player. Referring to new reports of sinusitis caused by MRSA, Hicks said that "people who would normally be treated with an pronounced antibiotic are requiring more toxic medications or, in some instances, admission to a hospital. We've seen this with pneumonia, too, and I problem we'll start to see it with other types of infections as well".
Knowing when to play antibiotics - and when not to - can worker fight the rise of deadly "superbugs," about experts at the US Centers for Disease Control and Prevention. About half of antibiotics prescribed are expendable or inappropriate, the agency says, and overuse has helped create bacteria that don't respond, or rejoin less effectively, to the drugs used to fight them. "Antibiotics are a shared resource that has become a few and far between resource," said Dr Lauri Hicks, a medical epidemiologist at the CDC.
She's also medical manager a of new program, Get Smart: Know When Antibiotics Work, that had its launch this week. "Everyone has a situation to play in preventing the spread of antibiotic resistance". The stakes are high, said Dr Arjun Srinivasan, CDC's affiliated director for health care-associated infection barring programs. Almost every type of bacteria has become stronger and less responsive to antibiotic treatment.
The CDC is urging Americans to use the drugs decently to help prevent the global problem of antibiotic resistance. To that end, the US Food and Drug Administration (FDA), numerous resident medical and controlled associations, as well as state and local health departments have collaborated on the CDC's Get Smart initiative.
Most strains of antibiotic-resistant bacteria are still found in form care settings, such as hospitals and nursing homes. Yet superbugs, including MRSA (methicillin-resistant staphylococcus aureus) - which kills about 19000 Americans a year - are increasingly found in community settings, such as haleness clubs, schools, and workplaces, said Hicks.
Community-associated MRSA (CA-MRSA), a purify that affects nutritious people outside of hospitals, made headlines in 2008, when it killed a Florida costly school football player. Referring to new reports of sinusitis caused by MRSA, Hicks said that "people who would normally be treated with an pronounced antibiotic are requiring more toxic medications or, in some instances, admission to a hospital. We've seen this with pneumonia, too, and I problem we'll start to see it with other types of infections as well".
Thursday 31 March 2016
Some Bacteria Inhibit Cancer Progression
Some Bacteria Inhibit Cancer Progression.
Having a farther down variety of bacteria in the emotional is associated with colorectal cancer, according to a new study. Researchers analyzed DNA in fecal samples nonchalant from 47 colorectal cancer patients and 94 people without the disease to act on the level of diversity of their gut bacteria. Study authors led by Jiyoung Ahn, at the New York University School of Medicine, concluded that decreased bacterial multiplicity in the gut was associated with colorectal cancer.
The examination was published in the Dec 6, 2013 issue of the Journal of the National Cancer Institute. Colorectal cancer patients had debase levels of bacteria that ferment dietary fiber into butyrate. This fatty acid may govern inflammation and the start of cancer in the colon, researchers found.
Having a farther down variety of bacteria in the emotional is associated with colorectal cancer, according to a new study. Researchers analyzed DNA in fecal samples nonchalant from 47 colorectal cancer patients and 94 people without the disease to act on the level of diversity of their gut bacteria. Study authors led by Jiyoung Ahn, at the New York University School of Medicine, concluded that decreased bacterial multiplicity in the gut was associated with colorectal cancer.
The examination was published in the Dec 6, 2013 issue of the Journal of the National Cancer Institute. Colorectal cancer patients had debase levels of bacteria that ferment dietary fiber into butyrate. This fatty acid may govern inflammation and the start of cancer in the colon, researchers found.
Sunday 13 September 2015
Dangerous Bacteria Live On Chicken Breasts
Dangerous Bacteria Live On Chicken Breasts.
Potentially unhealthy bacteria was found on 97 percent of chicken breasts bought at stores across the United States and tested, according to a experimental work in Dec 2013. And about half of the chicken samples had at least one breed of bacteria that was resistant to three or more classes of antibiotics, the investigators found. The tests on the 316 damp chicken breasts also found that most had bacteria - such as enterococcus and E coli - linked to fecal contamination.
About 17 percent of the E coli were a kidney that can cause urinary tract infections, according to the study, published online and in the February 2014 affair of Consumer Reports. In addition, slight more than 11 percent had two or more types of multidrug-resistant bacteria. Bacteria on the chicken were more rebellious to antibiotics used to promote chicken growth and to prevent poultry diseases than to other types of antibiotics, the retreat found.
These findings show that "consumers who buy chicken breast at their local grocery stores are very indubitably to get a sample that is contaminated and likely to get a bug that is multi-drug resistant. When people get heartsick from resistant bacteria, treatment may be getting harder to find," said Dr Urvashi Rangan, a toxicologist and directorate director of the Food Safety and Sustainability Center at Consumer Reports. The journal has been testing US chicken since 1998, and rates of contamination with salmonella have not changed much during that time, ranging from 11 percent to 16 percent of samples.
Potentially unhealthy bacteria was found on 97 percent of chicken breasts bought at stores across the United States and tested, according to a experimental work in Dec 2013. And about half of the chicken samples had at least one breed of bacteria that was resistant to three or more classes of antibiotics, the investigators found. The tests on the 316 damp chicken breasts also found that most had bacteria - such as enterococcus and E coli - linked to fecal contamination.
About 17 percent of the E coli were a kidney that can cause urinary tract infections, according to the study, published online and in the February 2014 affair of Consumer Reports. In addition, slight more than 11 percent had two or more types of multidrug-resistant bacteria. Bacteria on the chicken were more rebellious to antibiotics used to promote chicken growth and to prevent poultry diseases than to other types of antibiotics, the retreat found.
These findings show that "consumers who buy chicken breast at their local grocery stores are very indubitably to get a sample that is contaminated and likely to get a bug that is multi-drug resistant. When people get heartsick from resistant bacteria, treatment may be getting harder to find," said Dr Urvashi Rangan, a toxicologist and directorate director of the Food Safety and Sustainability Center at Consumer Reports. The journal has been testing US chicken since 1998, and rates of contamination with salmonella have not changed much during that time, ranging from 11 percent to 16 percent of samples.
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