abutments vertebral actinomycetes

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abutments vertebral actinomycetes

Treatment of actinomycosis

Preferred regimens — We generally suggest high-dose penicillin for actinomycosis [1-3]. Reasonable alternatives include ceftriaxone and amoxicillin. The route of administration depends on the severity of infection: Severe or extensive …

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Actinomycetes are a natural resource for sustainable pest …

Actinomycetes, a diverse group of bacteria with filamentous growth characteristics, have long captivated researchers and biochemists for their prolific production of secondary metabolites. Among the myriad roles played by actinomycete secondary metabolites, their historical significance in the field of biocontrol stands out …

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Bioactive Metabolites from Terrestrial and Marine Actinomycetes

Actinomycetes inhabit both terrestrial and marine ecosystems and are highly proficient in producing a wide range of natural products with diverse biological functions, including antitumor, immunosuppressive, antimicrobial, and antiviral activities. In this review, we delve into the life cycle, ecology, taxonomy, and classification of actinomycetes, as …

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Actinomycosis: etiology, clinical features, diagnosis, …

Actinomycosis is a rare chronic disease caused by Actinomyces spp., anaerobic Gram-positive bacteria that normally colonize the human mouth and digestive and genital tracts. Physicians must be aware of typical clinical presentations (such as cervicofacial actinomycosis following dental focus of infection, pelvic actinomycosis in …

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Actinomycetes | Review of Medical Microbiology

Actinomycetes are a family of bacteria that form long, branching filaments that resemble the hyphae of fungi (Figure 22–1). They are gram positive, but some (such as Nocardia asteroides) are also weakly acid-fast rods (Figure 22–2) (Table 22–1). + + FIGURE 22–1.

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Aerobic Actinomycetes of Clinical Significance

The aerobic actinomycetes are found in a wide variety of natural and man-made environments but are rarely considered a part of normal human flora; infections generally originate exogenously. This microbial group causes a wide spectrum of diseases in humans. Symptoms may vary widely between the genera and even between species; …

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Taxonomy, Physiology, and Natural Products of Actinobacteria

BIOLOGY OF ACTINOBACTERIA. Most of the Actinobacteria (the streptomycetes in particular) are saprophytic, soil-dwelling organisms that spend the majority of their life cycles as semidormant spores, especially under nutrient-limited conditions ().However, the phylum has adapted to a wide range of ecological …

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All about Actinomycetes

The mycelium of actinomycetes sometimes breaks apart to form coccoid or rod-shaped colonies. Many members of actinomycetes are also known to form spores with the sporangia or spore case being found on the aerial hyphae. They are easily infected by bacteriophages, and the phages that infect actinomycetes are called actinophages.

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Symptoms, diagnosis and treatment

Actinomycosis is a rare, pyogenic, granulomatous, subacute to chronic infection caused by actinomycetes. Actinomycetes are a group of anaerobic gram …

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The Potential Use of Actinomycetes as Microbial Inoculants …

Studies have already demonstrated actinomycetes metabolites active against bacteria (), fungi (), viruses (), nematodes (), and insects (), as well as compounds with antitumor and herbicide activities.Some species can also produce enzymes of industrial interest, such as chitinases, cellulases, and amylases (), and enzymes involved in plant …

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New Dimensions of Research on Actinomycetes: Quest for …

In Progress. Progress is crucial in several aspects of actinomycetes research that includes (1) isolation and dereplication of actinomycete isolates, (2) prediction and identification novel compounds, (3) enhancing production titers of potential compounds, (4) uncovering genome information and associated biosynthetic potential, (5) collection …

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What is a dental abutment? Your questions about abutments…

Custom abutments are often recommended in cases where there are limitations in the anatomy of the patient's mouth or jaw. Another type of abutment is the temporary abutment, which is used during the healing phase after implant placement but before the permanent restoration is attached. Temporary abutments help protect the …

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Acidophilic actinomycetes from rhizosphere …

In a preliminary test, five soil samples were used to isolate acidophilic actinomycetes at pH 4.5. One gram of each soil sample was suspended in 4 ml of 0.85% NaCl, heated at 55 °C for 10 min ...

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Actinomycetes | Review of Medical Microbiology

Actinomycetes are a family of bacteria that form long, branching filaments that resemble the hyphae of fungi (Figure 22–1). They are gram positive, but some (such as Nocardia …

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Actinomycetes: an unexplored microorganisms for plant growth …

Actinomycetes, a Gram positive bacteria, well reported as a source of antibiotics, also possess potential to control various plant pathogens, besides acting as plant growth promoting agent. Chemicals in different forms are extensively being used in vegetable farming, adversely affecting the environment and consumer health. Microbial …

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Actinomycetes: Isolation, Cultivation and its Active …

Occurrence Terrestrial environment Actinomycetes are saprophytes that may be found in a variety of natural environments, such as soil, lakes, oceans, plants, and animals (Figure 2). Novel Actinomycetes continue to flourish in soil. Primary ecological parameters including nutrition, aeration, pH, temperature, salinity, moisture, and organic matter content have …

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Joints and ligaments of the vertebral column

The vertebral column is composed of the vertebrae and the fibrocartilaginous intervertebral (IV) discs between them. It forms the main skeleton of the neck and back, extending from the base of the skull to …

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Use of soil actinomycetes for pharmaceutical, food, …

In this article, we reviewed the international scientific production of the last years on actinomycetes isolated from soil aiming to report recent advances in using these microorganisms for different applications. The most promising genera, isolation conditions and procedures, pH, temperature, and NaCl tolerance of these bacteria were reported. …

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Natural product discovery in soil actinomycetes: unlocking …

Within this phylum, soil actinomycetes, which we define as a group of saprophytic, free-living filamentous bacteria of the order Actinomycetales widely distributed in different soil habitats, are known for their remarkable ability to …

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What is an Abutment for Dental Implants?

Healing abutments are wider than standard abutments and help make space for the crown. 5. Once your gums are healed, and the implant is fully fused to the jawbone, the dentist unscrews the healing abutment and places the final abutment and crown in position. This one-stage approach eliminates the need to reopen the gums after …

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Vertebral Fracture

The vertebrae are bones in the spine joined by articulations that not only protect the spinal cord but also allow axial loading and support of the limbs. The spine is made up of 33 vertebrae. The word 'vertebra' originates from the Latin word meaning 'joint or articulation' or from the word 'vertere' meaning "to turn." Embryologically the vertebral …

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Imaging of Actinomycosis in Various Organs: A …

Actinomycosis is a chronic suppurative bacterial infection caused by Actinomyces species. Actinomyces israelii is the organism most commonly found in human disease. Actinomycosis usually manifests with abscess formation, dense fibrosis, and draining sinuses. The disease is further characterized by the tendency to extensively …

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Actinomycetes, an Inexhaustible Source of Naturally …

Efforts are being concentrated on actinomycetes, the proven source of most modern antibiotics. We devised a novel physicochemical screening mechanism, whereby simple physico-chemical properties, in conjunction with related detection methods, such as LC/MS, LC/UV, and polarity, could be used to identify or predict new …

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Actinomyces and Related Organisms in Human Infections

Among 15 actinomycotic cases with an involvement of thoracic vertebral bone, however, A. israelii was detected in 9 of the cases, and A. meyeri was detected in 1 . In one A. israelii case, no signs of osteomyelitis in the spinal column were observed; the organism was detected in cerebrospinal fluid, and the entire spinal cord was involved ...

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Recent Advances of Actinomycetes

Subsequently, BGC awakening techniques and biosynthetic mechanism studies have been pursued to maximize the biotechnological potential of actinomycetes. Moreover, chemical and synthetic biology approaches have allowed for higher production yields of novel and valuable ASMs, which could complement traditional culture-based …

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Actinomycetes

Nutrition. Unlike cyanobacteria, Actinomycetes are heterotrophic organisms and thus depend on various organic materials as a source of food/energy.This is achieved by decomposing various organic materials (e.g. cellulose and lignin etc) in their surroundings. To effectively break down these compounds, Actinomycetes produce a number of …

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Isolation and screening of actinomycetes producing antimicrobial

Isolation of actinomycetes: 10 g of each soil sample were suspended in 100 ml of sterile physiologic water (0.9% NaCl in distilled water). Heat treatment was performed in a water bath at 50°C for 60 min under agitation . Serial 10-fold dilutions of the samples were prepared with sterile 0.9% saline. Dilutions were then plated in triplicate …

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Actinomyces and Related Organisms in Human Infections

Bisphosphonate-related osteonecrosis of the jaws (BRONJ) is widely considered a specific disease entity where Actinomyces organisms may play an …

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Actinomycosis: Causes, Symptoms, Diagnosis & Treatment

What is actinomycosis? Actinomycosis (pronounced "ack-tin-oh-my-COH-sis") is a rare bacterial infection that causes pus-filled areas surrounded by bumpy tissue.You get it from bacteria of the genus Actinomyces.Actinomyces live naturally in your body without harming you. But surgery, injury or disease can cause them to grow in …

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What Is Bridge Abutment | 5 Types of Abutments

Typical Spill-through Abutment. Pedestal or spill-through abutments are short stub-type abutments supported on pedestals or columns extending to the natural ground. As with closed abutments, the abutment must be constructed before the approach embankment.. Then the fill is placed simultaneously on both sides of the pedestals to …

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