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Deinococcus radiodurans is a bacterium, an extremophile and one of the most radiation-resistant organisms known. It can survive cold, dehydration, vacuum, and acid, and therefore is known as a polyextremophile. The Guinness Book Of World Records listed it in January 1998 [1] as the world's most radiation-resistant bacterium or lifeform. [2]
Dental cavity, also known as tooth decay, [a] is the breakdown of teeth due to acids produced by bacteria. [6] The resulting cavities may be a number of different colors, from yellow to black. [ 1 ] Symptoms may include pain and difficulty eating.
The main groups of drugs involved are anti-resorptive drugs, and anti-angiogenic drugs. This condition was previously known as bisphosphonate-related osteonecrosis of the jaw ( BON or BRONJ ) because osteonecrosis of the jaw correlating with bisphosphonate treatment was frequently encountered, with its first incident occurring in 2003.
A standardized plan for the management of febrile, neutropenic patients must be devised in each institution or agency., [9] [10] Empirical regimens must contain antibiotics broadly active against Gram-negative aerobic bacteria (a quinolones [i.e. ciprofloxacin, levofloxacin], a fourth-generation cephalosporins [e.g. cefepime, ceftazidime], or ...
Radioresistance is the level of ionizing radiation that organisms are able to withstand.. Ionizing-radiation-resistant organisms (IRRO) were defined as organisms for which the dose of acute ionizing radiation (IR) required to achieve 90% reduction (D10) is greater than 1,000 gray (Gy) [1]
The company promised radiantly white teeth and bacterial extraction due to the ionizing radiation of the radioactive substances. The toothpaste was considered at the time a milestone of technical achievement and was touted as a "miracle remedy". Consequential damage caused by ionizing radiation is mostly unknown.
These bacteria infect the gum tissue surrounding the teeth, leading to inflammation and, if left untreated, progressive damage to the teeth and gum tissue. [9] Recent meta-analysis have shown that the composition of the oral microbiota and its response to periodontal disease differ between men and women .
Bacteria are capable of sharing these resistance factors in a process called horizontal gene transfer where resistant bacteria share genetic information that encodes resistance to the naive population. [6] Antibiotic inactivation: bacteria create proteins that can prevent damage caused by antibiotics, they can do this in two ways.