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When the lining of the sinus cavities gets inflamed from a viral infection like a cold, it swells. Nasal allergies or other problems that block the nasal passages and allow fluid to build up in the sinuses can also lead to sinusitis.
The main symptoms of sinusitis are a runny or stuffy nose and pain and pressure in your head and face. Your doctor can tell if you have sinusitis by asking questions about your past health and doing a physical exam. Put a hot, damp towel or gel pack on your face for 5 to 10 minutes at a time, several times a day. Use saline nose drops and sprays to keep the nasal passages moist and use saline nasal washes to help keep the nasal passages open and wash out mucus and bacteria.
Home treatments may help drain mucus from the sinuses and prevent a more serious bacterial or fungal infection. If you have a fungal infection—which is not common—antibiotics won’t clear up your sinusitis. If you have taken antibiotics and other medicines for a long time but still have sinusitis symptoms, you may need surgery. The bacteria called non-typeable Haemophilus influenzae are a common cause of infection in the upper respiratory tract. Researchers from the University of Southern California and the Oak Crest Institute of Science have discovered the link between antibiotics and bacterial biofilm formation leading to chronic lung, sinus and ear infections. During the study, non-typeable Haemophilus influenzae (NTHi) bacteria a common pathogen of humans was exposed to non-lethal doses of ampicillin, a class of antibiotics commonly used to treat respiratory, sinus and ear infections, or other beta-lactam antibiotics.

Biofilms are highly structured communities of microorganisms that attach to one another and to surfaces. Webster believes modern medicine needs to find ways of detecting and treating biofilm infections before the bacteria are able to form these protective structures.
A group of researchers from the US has moved a step closer to preventing infections of the common hospital pathogen, Staphylococcus aureus, by revealing the mechanisms that allow the bacteria to rapidly clog up medical devices. A relationship that has lasted for 100 million years is at serious risk of ending, due to the effects of environmental and climate change. The simple act of water droplets landing on a leaf causes an elaborate response inside of plants, scientists at The University of Western Australia have found. In the animal kingdom, sperm usually are considerably smaller than eggs, which means that males can produce far more of them. Researchers can build complex, nanometer-scale structures of almost any shape and form, using strands of DNA. Is the antibiotic cefalexin the correct treatment for a chest.i have a seizure disorder that has be under control since i stopped my asthma inhaler.
With chronic sinusitis, the infection or inflammation does not completely go away for 12 weeks or more. You may also have a yellow or green drainage or drip from your nose or down the back of your throat (postnasal discharge). With this type of infection, you may need treatment with antifungal medicines, steroid medicines, or surgery. You may also need surgery if the infection is likely to spread or if you have other problems, such as a growth (polyp) blocking the nasal passage.

The study results, published in the current issue of PLOS ONE, illustrate how bacterial biofilms can actually thrive, rather than decrease, when given low doses of antibiotics. The dose of the antibiotic was not enough to kill the bacteria which allowed the bacteria to react to the antibiotic by producing glycogen, a complex sugar often used by bacteria as a food source, to produce stronger biofilms when grown in the laboratory.
Therefore, bacteria forced into forming stronger biofilms will become more difficult to treat and will cause more severe chronic infections. The difficulties of treating biofilm infections, which can be up to 1,000 times more resistant to antibiotics, have prompted some physicians to propose a gradual move away from traditional antibiotic treatments and toward non-antibiotic therapies.
The swelling can block the normal drainage of fluid from the sinuses into the nose and throat. This layer is highly protective for the organisms within it, and when new bacteria are produced they stay within the slimy layer. Adults will suffer protracted lung infections as the bacteria hunker down into their protective slime, and children will have repeated ear infections.
If the fluid cannot drain and builds up over time, bacteria or fungi (plural of fungus) may start to grow in it. With the introduction of antibiotic-produced glycogen, the biofilms have an almost endless food source that can be used once antibiotic exposure has ended. What may appear to be antibiotic resistance when an infection does not clear up may actually be biofilms at work.

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16.09.2013, author: admin
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