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Liver Cancer And Its Symptoms
By mad
What is liver cancer?
Liver cancer happens when cells begin to multiply at a faster rate than they should and the unwanted cells form a growth also there are 2 main types of liver cancer and these are primary cancer which means the cancer started in liver. The second type is secondary cancer which means the means the cancer developed in another part of the body and has spread to the liver and the most common cancers that may spread to the liver are cancers of the stomach, lung, colon and breast. The two main types of primary liver cancer are hepatoma that starts in the cells, which perform the major tasks of the liver, called hepatocytes and the second type of cancer is known as cholangiocarcinomas and it starts in the cells that line the bile ducts of the liver.

What are the symptoms of liver cancer?
At the very early stage of liver cancer there are no symptoms and the other symptoms are upper right abdomen pain, swelling in upper right abdomen, abdominal pain extends to shoulder and back, swollen abdomen, enlarged liver, weight loss, loss of appetite, feeling of fullness, weakness, fatigue, nausea, malaise, fever, vomiting, jaundice which includes symptoms like yellow skin, yellow eyes, darker urine and fluid retention.
What can you do to prevent liver cancer?

In order to avoid liver cancer you should stop smoking and this will greatly reduce your risk of developing lung and stomach cancer as well as try to maintain a healthy balanced diet and reduce your consumption of alcohol which is a major cause of cirrhosis of the liver. The main step is to protect yourself against the hepatitis virus by practicing safe sex and avoid sharing needles.

And if you have cirrhosis of the liver then your doctor should regularly test you for the presence of a hepatoma and the test may involve regular blood tests, which looks for the presence of alpha-feta protein which is a substance found in abnormal amounts in those with a hepatoma.

What are the treatments of liver cancer?
Treatments of liver cancer will vary according to the individual also depending on which stage have they reached and some of the possible treatments are surgery, liver transplantation, chemotherapy and radiation where liver transplantation is the replacement of one liver with another. Radiation therapy is the use of x rays or other high-energy rays to kill cancer cells and shrink tumors and Chemotherapy is the use of drugs to kill cancer cells. Since in surgery, leukemia cells can spread to all the organs via the blood stream and the lymph vessels hence surgery is usually not an option.

Detection of the liver disorder:
Liver cancer has become very common and two-thirds of people have advanced liver disease when they seek medical help, one third of the patients have cancer that has not progressed beyond the liver. Hepatitis is one of the main causes of cancer and people who have this

Potential for using algae to produce human therapeutic proteins shown
Pharmaceutical companies could substantially reduce the expense of costly treatments for cancer and other diseases produced from mammalian or bacterial cells by growing these human therapeutic proteins in algae -- rapidly growing aquatic plant cells that have recently gained attention for their ability to produce biofuels.
Emerging tick-borne disease
A new assay allows scientists to discover whether ticks are carrying disease-causing bacteria and which animals provided their last blood meal. Assay results suggest three emerging diseases in the St. Louis area are carried by lone star ticks feeding on record-high populations of white tailed deer.
Discovery in legumes could reduce fertilizer use, aid environment
Escalating use of nitrogen fertilizer is increasing algal blooms and global warming, but a recent discovery by researchers could begin to reverse that. They have revealed a key step in how symbiotic bacteria living in legumes turn nitrogen into plant food, which could be used to improve the process in some plants, reducing the need for chemical fertilizers.
Production of chemicals from wood waste made more environmentally-friendly and cheaper
Researchers have discovered that the bacterium Cupriavidus basilensis breaks down harmful by-products which are produced when sugars are released from wood. They also managed to incorporate the degradation process in bacteria which are in common industrial use. This breakthrough does away with the need to resort to costly and environmentally unfriendly methods for removing by-products, thereby boosting the appeal of waste wood as a sustainable resource for biochemicals and biofuels.
Campylobacter bacteria in cattle manure may survive composting
Contrary to popular belief, some disease causing bacteria may actually survive the composting process. Researchers report that campylobacter bacteria in cattle manure can survive composting and persist for long periods in the final product.
Intestinal bacteria drive obesity and metabolic disease in immune-altered mice
Mice lacking a gene called TLR5 have an altered ability to recognize and control bacteria in their intestines, leading them to develop obesity and insulin resistance, which is often referred to as "pre-diabetes." The bacteria appear to influence appetite and metabolism rather than how well calories are absorbed. Obesity and insulin resistance can be transferred from TLR5-deficient mice via intestinal bacteria.
How ocean bacterium turns carbon into fuel
Researchers have uncovered details about how cyanobacteria, one of the most abundant organisms on Earth, digest carbon. These bacteria build miniature factories inside themselves that turn carbon into fuel. A new study shows the bacteria organize these factories spatially, lining them up in a neat row, revealing a structural sophistication not often seen in single-celled organisms.
Biogenic insecticides decoded
Researchers have discovered a new mode of action of insecticidal toxins from Photorhabdus luminescens, a bacterium which lives in a symbiotic relationship with nematodes. The tiny worms enter insect larvae through natural openings, where they proceed to "cough up" the bacteria. Bacterial toxins produced by the light-emitting bacteria kill the insect larvae, thus creating a larger reservoir of nourishment for the proliferation of nematodes and bacteria. For this reason, the worms and their bacteria are often used as biogenic insecticides.
Newly engineered enzyme is a powerful staph antibiotic
With their best chemical antibiotics slowly failing, scientists are increasingly looking to nature for a way to control deadly staph bacteria -- the culprit behind most hospital infections. Naturally toxic for bacteria, enzymes called lysins have the promising ability to obliterate staph, but the problem is producing large enough quantities of them to study how they work. Scientists have now overcome this barrier by engineering a lysin that not only kills multidrug-resistant Staphylococcus aureus (MRSA) in mice, but also works synergistically with traditional antibiotics that have long been shelved due to resistance.
Bacterial balance keeps us healthy: Microbial genes in gut outnumber genes in human body
The thousands of bacteria, fungi and other microbes that live in our gut are essential contributors to our good health. They break down toxins, manufacture some vitamins and essential amino acids, and form a barrier against invaders. A new study shows that, at 3.3 million, microbial genes in our gut outnumber previous estimates for the whole of the human body.
Gene regulation: Can we stomach it? New technique fights against cause of peptic ulcer disease and gastric cancer
A breakthrough in decoding gene regulation of Helicobacter pylori has been made by an international research team. Using a newly developed sequencing technique, the researchers discovered 60 small ribonucleic acids -- tiny RNA-particles which can regulate genes -- in the genome of this human pathogen. These findings could facilitate the development of new therapeutic strategies against this widespread pathogen.
How trauma leads to inflammatory response: Mitochondria may be at root of dangerous complications from injury
A new study suggests that mitochondria can be released into the bloodstream following physical injury, resulting in a sepsis-like immune response, and leading to the onset of the systemic inflammatory response syndrome.
Pesky aphid thrives despite weak immune system
Pea aphids, expert survivors of the insect world, appear to lack major biological defenses, according to the first genetic analysis of their immune system.
UK scientists devise worldwide food alert system
Countries producing food containing harmful bacteria and toxins could be named and shamed more quickly using a worldwide alert system devised by a team of scientists from the UK.
Assessing antibiotic breakdown in manure
Agricultural scientists are studying how oxytetracycline, an antibiotic that is administered to animals, breaks down in cattle manure.
Household bacteria for better cheese
A Norwegian dairy company is now planning an in-depth study that will find out whether household bacteria can be used for their own sake. When the dairy company makes cheese, it deliberately adds certain organisms to the raw milk. Others get there by chance and shape the end-product. But such games of chance will soon be a thing of the past.
Faster method to detect bacterial contamination in coastal waters developed
Currently, beachgoers are informed about water quality conditions based on results from the previous day's sample. Scientists must collect samples in the field, then return to a lab to culture them for analysis -- a process that takes a minimum of 24 hours. Now, engineers have sped up the process of analyzing bacterial concentrations to under one hour, through the development of a new in-field, rapid detection method.
Plant's ability to identify, block invading bacteria examined
Understanding how plants defend themselves from bacterial infections may help researchers understand how people and other animals could be better protected from such pathogens. That's the idea behind a study to observe a specific bacteria that infects tomatoes but normally does not bother the common laboratory plant arabidopsis.
Beewolves protect their offspring with antibiotics; digger wasp larvae use bacteria against infections
Beewolves house beneficial bacteria on their cocoons that guarantee protection against harmful microorganisms. Scientists have discovered that bacteria of the genus Streptomyces produce a cocktail of nine different antibiotics and thereby fend off invading pathogens. Using imaging techniques based on mass spectrometry, the antibiotics could be displayed on the cocoon's surface. Moreover, it was shown that the use of different kinds of antibiotics provides effective protection against infection with a multitude of different pathogenic microorganisms.
Scientists crash test DNA’s replication machinery
Enzymes that travel along DNA to copy or transcribe it -- the crucial processes underlying cell replication and protein production -- aren't coordinated by a central dispatcher. In fact, they often collide. Now, researchers have discovered that when DNA-copying machines run head-on into proteins performing less critical tasks, they kick the obstacles aside and continue on their way.
E. coli as sole indicator of water pollution questioned
New research investigating pathogen survival in soils has found that E. coli can become integrated into the indigenous microbial community in soils and survive for more than nine years, considerably longer than scientists initially thought.
Multiple sclerosis onset: Could mycobacteria play a role?
A non-pathogenic bacterium is capable to trigger an autoimmune disease similar to the multiple sclerosis in the mouse, the model animal which helps to explain how human diseases work. This is an unprecedented mechanism which could explain how this terrible central nervous system disease starts up in humans.
Scientists unlock key enzyme using newly created 'cool' method
Scientists -- using a new cooling method they created -- have uncovered the inner workings of a key iron-containing enzyme, a discovery that could help researchers develop new medicines or understand how enzymes repair DNA. Taurine/alpha-ketoglutarate dioxygenase, known as TauD, is a bacterial enzyme that is important in metabolism. Enzymes in this family repair DNA, sense oxygen and help produce antibiotics.
Interactions between species: Powerful driving force behind evolution?
Scientists in the UK have provided the first experimental evidence that shows that evolution is driven most powerfully by interactions between species, rather than adaptation to the environment.
Suffocating head lice works in new treatment
A new non-neurotoxic treatment for head lice has been found to have an average of 91.2 percent treatment success rate after one week, and to be safe in humans from six months of age and up.
Typhoid fever bacteria collect on gallstones to perpetuate disease
A new study suggests that the bacteria that cause typhoid fever collect in tiny but persistent communities on gallstones, making the infection particularly hard to fight in so-called "carriers" -- people who have the disease but show no symptoms. Humans who harbor these bacterial communities in their gallbladders, even without symptoms, are able to infect others with active typhoid fever, especially in developing areas of the world with poor sanitation.
Aphid's genome reflects its reproductive, symbiotic lifestyle
Aphids could be considered the "mosquitoes" of the plant world, depending on the "blood" of plants to survive. They live in symbiosis with bacteria that pass from one generation to the next, producing essential amino acids. Aphids with the same genotype can be wingless or winged. In different seasons, they develop as asexual females who produce offspring with identical genes through parthenogenesis. When temperatures drop, they can give birth to males who then fertilize the eggs laid by females. The genome of the pea aphid, sequenced by the International Aphid Genomics Consortium, reflects these unusual characteristics and more.
Mosquito genes yield secrets to how they survive malaria-causing parasite
Researchers are studying the main contributing mosquito species to malaria transmission in Africa. They are characterizing genes specific to mosquito blood cells. The researchers were able to identify genes in the blood cells whose expression changed with malaria infection. This could be used for disease control, ultimately. On a more basic level, the researchers are learning how the immune system works and how it recognizes a parasite and limits the infection.
Orange peels, newspapers may lead to cheaper, cleaner ethanol fuel
Scientists may have just made the breakthrough of a lifetime, turning discarded fruit peels and other throwaways into cheap, clean fuel to power the world's vehicles.
Biologists discover how biological clock controls cell division in bacteria
Biologists have unraveled the biochemistry of how bacteria so precisely time cell division, a key element in understanding how all organisms from bacteria to humans use their biological clocks to control basic cellular functions.
Potentially deadly infection linked to frequent cow exposure
A common bacteria found in many healthy adult females that can cause life-threatening infections when passed to newborns could be introduced to some women through frequent contact with cows, according to a new research. Group B streptococcus could be a zoonotic disease -- transmitted between different species -- which may have significant public health implications.
Flu-induced stress response is critical for resistance to secondary infection
A new study reveals how infection with the influenza virus impacts the way that the immune system responds to subsequent infections. The research provides a new understanding of the physiological and pathological consequences of the flu.
Scientists discover how protein trips up germs
If bad bacteria lurk in your system, chances are they will bump into the immune system's protective cells whose job is gobbling germs. The catch is that these do-gooders, known as macrophages, ingest and destroy only those infectious invaders that they can securely hook and reel in. Now, scientists have shown that a healthy immune response depends on a protein called TRPV2 which, they discovered, is the means by which macrophages capitalize on brief and accidental encounters with nasty bugs.
Protein found to be key in protecting the gut from infection
A signaling protein that is key in orchestrating the body's overall immune response has an important localized role in fighting bacterial infection and inflammation in the intestinal tract, according to a new study.
Scientists discover TB disease mechanism and molecule to block it
Researchers have identified a mechanism used by the tuberculosis bacterium to evade the body's immune system and have identified a compound that blocks the bacterium's ability to survive in the host, which could lead to new drugs to treat tuberculosis.
New weapon to fight disease-causing bacteria, malaria developed
Researchers report that they have discovered -- and now know how to exploit -- an unusual chemical reaction mechanism that allows malaria parasites and many disease-causing bacteria to survive. The research team also has developed the first potent inhibitor of this chemical reaction.
Plant buffers may limit spread of antibiotics in animal waste
Buffer strips of grasses and other plants can trap and break down veterinary antibiotics in manure fertilizers, according to new research.
Bacteria-killing proteins cover blood type blind spot
Galectin-4 and galectin-8, carbohydrate-binding proteins found in our intestines, can recognize and kill bacteria that have human blood type sugar molecules on their surfaces. This discovery explains why bacteria can't sneak past our immune systems by camouflaging themselves with blood type molecules. It may also explain why the human population has a diversity of blood types; galectin-4 and -8 create a "protected space" for the diversity.
Enzyme with industrial applications characterized
Microbial enzymes are commonly used to reduce the levels of contamination created by industrial processes. Researchers have now characterized xylan-degrading enzyme from the the bacteria Paenibacillus barcinonensis, an isolated microorganism found in the Ebro delta.
Cholera and related diseases: Grasping bacterial 'friending' paves the way to disrupt biofilm creation
Finding a biological mechanism much like an online social network, scientists have identified the bacterial protein VpsT as the master regulator in Vibrio, the cause of cholera and other enteric diseases. This discovery provides a major tool to combat enteric disease.
How cholera bacteria becomes infectious
Researchers have described the structure of a protein called ToxT that controls the virulent nature of Vibrio cholerae, the bacteria that causes cholera. Buried within ToxT, the researchers were surprised to find a fatty acid that appears to inhibit ToxT, which prevents the bacteria from causing cholera.
Antibiotics as active mutagens in the emergence of multidrug resistance
Multidrug resistant bacteria such as Methicillin-resistant Staphylococcus aureus (MRSA) pose a major problem for patients, doctors, and the pharmaceutical industry. To combat such bacteria, it is critical to understand how resistance is developed in the first place. New research shows that low doses of antibiotics can produce mutant strains that are sensitive to the applied antibiotic but have cross-resistance to other antibiotics.
Low levels of antibiotics cause multidrug resistance in 'superbugs'
A new study by biomedical engineers indicates that treating bacteria with levels of antibiotics insufficient to kill them produces germs that are cross-resistant to a wide range of antibiotics.
Adapting to clogged airways makes common pathogen resist powerful drugs
Mutations of a common environmental pathogen that causes chronic lung disease in patients with cystic fibrosis are able to survive in oxygen-poor, nitrate-rich airway secretions. This same survival mechanism also enables the mutate bacteria to resist the effects of certain antibiotics -- even without any previous exposure to antibiotics.
Biological risks of eating reptiles
Reptiles are bred in captivity primarily for their skins, but some restaurants and population groups also want them for their meat. A study shows that eating these animals can have side effects that call into question the wisdom of eating this 'delicacy.'
Cells can read damaged DNA without missing a beat
Under certain growth-limiting conditions, enzymes that read DNA can skim through damaged DNA without skipping any letters in the genetic "text." This suggests a mechanism that can allow bacteria to develop resistance to antibiotics.
Blueberries counteract intestinal diseases
It is already known that blueberries are rich in antioxidants and vitamins. New research shows that blueberry fiber is important and can alleviate and protect against intestinal inflammations, such as ulcerative colitis. The protective effect is even better if the blueberries are eaten together with probiotics.
Did bacteria develop into more complex cells much earlier in evolution than thought?
Biochemists have described the process by which bacteria developed into more complex cells and found this crucial step happened much earlier in the evolutionary timeline than previously thought.

problem are most likely to suffer from liver cancer. Abdominal pain is one of the basic symptoms generally the initial and most frequent symptom and it can be an indication for the initial stage of cancer. Another basic symptoms are universal that including weakness and weight loss, although symptoms vary in different parts of the world. One should consult the doctor immediately when one undergoes this problem and if this is detected then the treatment can begin before the problem aggravates.

Basic symptoms:
Tiredness is another important symptom and its not relieved by rest and can affect you physically, psychologically and emotionally. In some cases there is a loss of apatite and in these cases Steroids prescribed by your doctor may increase your appetite. Some people suffer from nausea and by changing the chemical balance in the blood. Nausea can often be effectively relieved by anti-sickness tablets. There is a graet variety of anti-emetics available and your doctor will find the one that suits you best and that problem can be cured. In extreme cases there is a usage of steroids as these can help to relieve sickness and make you feel more energetic, as well as improving your appetite.

Other symptoms:
There are various other symptoms like heavy pain because enlarged liver stretches the capsule that surrounds it resulting into this problem. Chemotherapy is used so that it can shrink the enlarged liver will relieve the pain, but there are also several effective types of painkillers available that your doctor can prescribe. There are many doctors who prescribe strong pain killers but they have sude effects like consitipation hence it is important to try to have a diet high in fibre and drink plenty of fluids and if this kind of a diet if followed then these problems are minimised.

Article Source: http://www.ArticleJoe.com

Jamie is the author of other Liver Help located at Health InformationAlso check out our Health Blog for other health tips.Please stop by and sign up for our free health tip news letter.


 
 
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  Potential for using algae to produce human therapeutic proteins shown
Pharmaceutical companies could substantially reduce the expense of costly treatments for cancer and other diseases produced from mammalian or bacterial cells by growing these human therapeutic proteins in algae -- rapidly growing aquatic plant cells that have recently gained attention for their ability to produce biofuels.
Emerging tick-borne disease
A new assay allows scientists to discover whether ticks are carrying disease-causing bacteria and which animals provided their last blood meal. Assay results suggest three emerging diseases in the St. Louis area are carried by lone star ticks feeding on record-high populations of white tailed deer.
Discovery in legumes could reduce fertilizer use, aid environment
Escalating use of nitrogen fertilizer is increasing algal blooms and global warming, but a recent discovery by researchers could begin to reverse that. They have revealed a key step in how symbiotic bacteria living in legumes turn nitrogen into plant food, which could be used to improve the process in some plants, reducing the need for chemical fertilizers.
Production of chemicals from wood waste made more environmentally-friendly and cheaper
Researchers have discovered that the bacterium Cupriavidus basilensis breaks down harmful by-products which are produced when sugars are released from wood. They also managed to incorporate the degradation process in bacteria which are in common industrial use. This breakthrough does away with the need to resort to costly and environmentally unfriendly methods for removing by-products, thereby boosting the appeal of waste wood as a sustainable resource for biochemicals and biofuels.
Campylobacter bacteria in cattle manure may survive composting
Contrary to popular belief, some disease causing bacteria may actually survive the composting process. Researchers report that campylobacter bacteria in cattle manure can survive composting and persist for long periods in the final product.
Intestinal bacteria drive obesity and metabolic disease in immune-altered mice
Mice lacking a gene called TLR5 have an altered ability to recognize and control bacteria in their intestines, leading them to develop obesity and insulin resistance, which is often referred to as "pre-diabetes." The bacteria appear to influence appetite and metabolism rather than how well calories are absorbed. Obesity and insulin resistance can be transferred from TLR5-deficient mice via intestinal bacteria.
How ocean bacterium turns carbon into fuel
Researchers have uncovered details about how cyanobacteria, one of the most abundant organisms on Earth, digest carbon. These bacteria build miniature factories inside themselves that turn carbon into fuel. A new study shows the bacteria organize these factories spatially, lining them up in a neat row, revealing a structural sophistication not often seen in single-celled organisms.
Biogenic insecticides decoded
Researchers have discovered a new mode of action of insecticidal toxins from Photorhabdus luminescens, a bacterium which lives in a symbiotic relationship with nematodes. The tiny worms enter insect larvae through natural openings, where they proceed to "cough up" the bacteria. Bacterial toxins produced by the light-emitting bacteria kill the insect larvae, thus creating a larger reservoir of nourishment for the proliferation of nematodes and bacteria. For this reason, the worms and their bacteria are often used as biogenic insecticides.
Newly engineered enzyme is a powerful staph antibiotic
With their best chemical antibiotics slowly failing, scientists are increasingly looking to nature for a way to control deadly staph bacteria -- the culprit behind most hospital infections. Naturally toxic for bacteria, enzymes called lysins have the promising ability to obliterate staph, but the problem is producing large enough quantities of them to study how they work. Scientists have now overcome this barrier by engineering a lysin that not only kills multidrug-resistant Staphylococcus aureus (MRSA) in mice, but also works synergistically with traditional antibiotics that have long been shelved due to resistance.
Bacterial balance keeps us healthy: Microbial genes in gut outnumber genes in human body
The thousands of bacteria, fungi and other microbes that live in our gut are essential contributors to our good health. They break down toxins, manufacture some vitamins and essential amino acids, and form a barrier against invaders. A new study shows that, at 3.3 million, microbial genes in our gut outnumber previous estimates for the whole of the human body.
Gene regulation: Can we stomach it? New technique fights against cause of peptic ulcer disease and gastric cancer
A breakthrough in decoding gene regulation of Helicobacter pylori has been made by an international research team. Using a newly developed sequencing technique, the researchers discovered 60 small ribonucleic acids -- tiny RNA-particles which can regulate genes -- in the genome of this human pathogen. These findings could facilitate the development of new therapeutic strategies against this widespread pathogen.
How trauma leads to inflammatory response: Mitochondria may be at root of dangerous complications from injury
A new study suggests that mitochondria can be released into the bloodstream following physical injury, resulting in a sepsis-like immune response, and leading to the onset of the systemic inflammatory response syndrome.
Pesky aphid thrives despite weak immune system
Pea aphids, expert survivors of the insect world, appear to lack major biological defenses, according to the first genetic analysis of their immune system.
UK scientists devise worldwide food alert system
Countries producing food containing harmful bacteria and toxins could be named and shamed more quickly using a worldwide alert system devised by a team of scientists from the UK.
Assessing antibiotic breakdown in manure
Agricultural scientists are studying how oxytetracycline, an antibiotic that is administered to animals, breaks down in cattle manure.
Household bacteria for better cheese
A Norwegian dairy company is now planning an in-depth study that will find out whether household bacteria can be used for their own sake. When the dairy company makes cheese, it deliberately adds certain organisms to the raw milk. Others get there by chance and shape the end-product. But such games of chance will soon be a thing of the past.
Faster method to detect bacterial contamination in coastal waters developed
Currently, beachgoers are informed about water quality conditions based on results from the previous day's sample. Scientists must collect samples in the field, then return to a lab to culture them for analysis -- a process that takes a minimum of 24 hours. Now, engineers have sped up the process of analyzing bacterial concentrations to under one hour, through the development of a new in-field, rapid detection method.
Plant's ability to identify, block invading bacteria examined
Understanding how plants defend themselves from bacterial infections may help researchers understand how people and other animals could be better protected from such pathogens. That's the idea behind a study to observe a specific bacteria that infects tomatoes but normally does not bother the common laboratory plant arabidopsis.
Beewolves protect their offspring with antibiotics; digger wasp larvae use bacteria against infections
Beewolves house beneficial bacteria on their cocoons that guarantee protection against harmful microorganisms. Scientists have discovered that bacteria of the genus Streptomyces produce a cocktail of nine different antibiotics and thereby fend off invading pathogens. Using imaging techniques based on mass spectrometry, the antibiotics could be displayed on the cocoon's surface. Moreover, it was shown that the use of different kinds of antibiotics provides effective protection against infection with a multitude of different pathogenic microorganisms.
Scientists crash test DNA’s replication machinery
Enzymes that travel along DNA to copy or transcribe it -- the crucial processes underlying cell replication and protein production -- aren't coordinated by a central dispatcher. In fact, they often collide. Now, researchers have discovered that when DNA-copying machines run head-on into proteins performing less critical tasks, they kick the obstacles aside and continue on their way.
E. coli as sole indicator of water pollution questioned
New research investigating pathogen survival in soils has found that E. coli can become integrated into the indigenous microbial community in soils and survive for more than nine years, considerably longer than scientists initially thought.
Multiple sclerosis onset: Could mycobacteria play a role?
A non-pathogenic bacterium is capable to trigger an autoimmune disease similar to the multiple sclerosis in the mouse, the model animal which helps to explain how human diseases work. This is an unprecedented mechanism which could explain how this terrible central nervous system disease starts up in humans.
Scientists unlock key enzyme using newly created 'cool' method
Scientists -- using a new cooling method they created -- have uncovered the inner workings of a key iron-containing enzyme, a discovery that could help researchers develop new medicines or understand how enzymes repair DNA. Taurine/alpha-ketoglutarate dioxygenase, known as TauD, is a bacterial enzyme that is important in metabolism. Enzymes in this family repair DNA, sense oxygen and help produce antibiotics.
Interactions between species: Powerful driving force behind evolution?
Scientists in the UK have provided the first experimental evidence that shows that evolution is driven most powerfully by interactions between species, rather than adaptation to the environment.
Suffocating head lice works in new treatment
A new non-neurotoxic treatment for head lice has been found to have an average of 91.2 percent treatment success rate after one week, and to be safe in humans from six months of age and up.
Typhoid fever bacteria collect on gallstones to perpetuate disease
A new study suggests that the bacteria that cause typhoid fever collect in tiny but persistent communities on gallstones, making the infection particularly hard to fight in so-called "carriers" -- people who have the disease but show no symptoms. Humans who harbor these bacterial communities in their gallbladders, even without symptoms, are able to infect others with active typhoid fever, especially in developing areas of the world with poor sanitation.
Aphid's genome reflects its reproductive, symbiotic lifestyle
Aphids could be considered the "mosquitoes" of the plant world, depending on the "blood" of plants to survive. They live in symbiosis with bacteria that pass from one generation to the next, producing essential amino acids. Aphids with the same genotype can be wingless or winged. In different seasons, they develop as asexual females who produce offspring with identical genes through parthenogenesis. When temperatures drop, they can give birth to males who then fertilize the eggs laid by females. The genome of the pea aphid, sequenced by the International Aphid Genomics Consortium, reflects these unusual characteristics and more.
Mosquito genes yield secrets to how they survive malaria-causing parasite
Researchers are studying the main contributing mosquito species to malaria transmission in Africa. They are characterizing genes specific to mosquito blood cells. The researchers were able to identify genes in the blood cells whose expression changed with malaria infection. This could be used for disease control, ultimately. On a more basic level, the researchers are learning how the immune system works and how it recognizes a parasite and limits the infection.
Orange peels, newspapers may lead to cheaper, cleaner ethanol fuel
Scientists may have just made the breakthrough of a lifetime, turning discarded fruit peels and other throwaways into cheap, clean fuel to power the world's vehicles.
Biologists discover how biological clock controls cell division in bacteria
Biologists have unraveled the biochemistry of how bacteria so precisely time cell division, a key element in understanding how all organisms from bacteria to humans use their biological clocks to control basic cellular functions.
Potentially deadly infection linked to frequent cow exposure
A common bacteria found in many healthy adult females that can cause life-threatening infections when passed to newborns could be introduced to some women through frequent contact with cows, according to a new research. Group B streptococcus could be a zoonotic disease -- transmitted between different species -- which may have significant public health implications.
Flu-induced stress response is critical for resistance to secondary infection
A new study reveals how infection with the influenza virus impacts the way that the immune system responds to subsequent infections. The research provides a new understanding of the physiological and pathological consequences of the flu.
Scientists discover how protein trips up germs
If bad bacteria lurk in your system, chances are they will bump into the immune system's protective cells whose job is gobbling germs. The catch is that these do-gooders, known as macrophages, ingest and destroy only those infectious invaders that they can securely hook and reel in. Now, scientists have shown that a healthy immune response depends on a protein called TRPV2 which, they discovered, is the means by which macrophages capitalize on brief and accidental encounters with nasty bugs.
Protein found to be key in protecting the gut from infection
A signaling protein that is key in orchestrating the body's overall immune response has an important localized role in fighting bacterial infection and inflammation in the intestinal tract, according to a new study.
Scientists discover TB disease mechanism and molecule to block it
Researchers have identified a mechanism used by the tuberculosis bacterium to evade the body's immune system and have identified a compound that blocks the bacterium's ability to survive in the host, which could lead to new drugs to treat tuberculosis.
New weapon to fight disease-causing bacteria, malaria developed
Researchers report that they have discovered -- and now know how to exploit -- an unusual chemical reaction mechanism that allows malaria parasites and many disease-causing bacteria to survive. The research team also has developed the first potent inhibitor of this chemical reaction.
Plant buffers may limit spread of antibiotics in animal waste
Buffer strips of grasses and other plants can trap and break down veterinary antibiotics in manure fertilizers, according to new research.
Bacteria-killing proteins cover blood type blind spot
Galectin-4 and galectin-8, carbohydrate-binding proteins found in our intestines, can recognize and kill bacteria that have human blood type sugar molecules on their surfaces. This discovery explains why bacteria can't sneak past our immune systems by camouflaging themselves with blood type molecules. It may also explain why the human population has a diversity of blood types; galectin-4 and -8 create a "protected space" for the diversity.
Enzyme with industrial applications characterized
Microbial enzymes are commonly used to reduce the levels of contamination created by industrial processes. Researchers have now characterized xylan-degrading enzyme from the the bacteria Paenibacillus barcinonensis, an isolated microorganism found in the Ebro delta.
Cholera and related diseases: Grasping bacterial 'friending' paves the way to disrupt biofilm creation
Finding a biological mechanism much like an online social network, scientists have identified the bacterial protein VpsT as the master regulator in Vibrio, the cause of cholera and other enteric diseases. This discovery provides a major tool to combat enteric disease.
How cholera bacteria becomes infectious
Researchers have described the structure of a protein called ToxT that controls the virulent nature of Vibrio cholerae, the bacteria that causes cholera. Buried within ToxT, the researchers were surprised to find a fatty acid that appears to inhibit ToxT, which prevents the bacteria from causing cholera.
Antibiotics as active mutagens in the emergence of multidrug resistance
Multidrug resistant bacteria such as Methicillin-resistant Staphylococcus aureus (MRSA) pose a major problem for patients, doctors, and the pharmaceutical industry. To combat such bacteria, it is critical to understand how resistance is developed in the first place. New research shows that low doses of antibiotics can produce mutant strains that are sensitive to the applied antibiotic but have cross-resistance to other antibiotics.
Low levels of antibiotics cause multidrug resistance in 'superbugs'
A new study by biomedical engineers indicates that treating bacteria with levels of antibiotics insufficient to kill them produces germs that are cross-resistant to a wide range of antibiotics.
Adapting to clogged airways makes common pathogen resist powerful drugs
Mutations of a common environmental pathogen that causes chronic lung disease in patients with cystic fibrosis are able to survive in oxygen-poor, nitrate-rich airway secretions. This same survival mechanism also enables the mutate bacteria to resist the effects of certain antibiotics -- even without any previous exposure to antibiotics.
Biological risks of eating reptiles
Reptiles are bred in captivity primarily for their skins, but some restaurants and population groups also want them for their meat. A study shows that eating these animals can have side effects that call into question the wisdom of eating this 'delicacy.'
Cells can read damaged DNA without missing a beat
Under certain growth-limiting conditions, enzymes that read DNA can skim through damaged DNA without skipping any letters in the genetic "text." This suggests a mechanism that can allow bacteria to develop resistance to antibiotics.
Blueberries counteract intestinal diseases
It is already known that blueberries are rich in antioxidants and vitamins. New research shows that blueberry fiber is important and can alleviate and protect against intestinal inflammations, such as ulcerative colitis. The protective effect is even better if the blueberries are eaten together with probiotics.
Did bacteria develop into more complex cells much earlier in evolution than thought?
Biochemists have described the process by which bacteria developed into more complex cells and found this crucial step happened much earlier in the evolutionary timeline than previously thought.
 
 
 
 
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