is an important opportunistic pathogen often resistant to antibiotics. Specific phages can be useful in eliminating infection caused by . phage vB_KlebPS_265 (KlebP_265) and its host strain were isolated from the sputum of a patient with infection.
View Article and Find Full Text PDFZh Vopr Neirokhir Im N N Burdenko
December 2024
Unlabelled: The development of new drugs in nuclear medicine for diagnosis or treatment (chemotherapy) of brain tumors, in particular gliomas, is inextricably linked with the use of tumor models in animals (usually rats).
Objective: To compare the widely used glioma cell model C6 and the new experimental tissue model of glioblastoma 101.8.
Bacteria of the genus, including the subgroup, play an important role in the environmental microbial communities. Psychrotolerant isolates of can produce thermostable proteases and lipases. When contaminating refrigerated raw milk, these bacteria spoil it by producing enzymes resistant to pasteurization.
View Article and Find Full Text PDFBacteria of the genus are significant challenge for medicine, as many species are resistant to multiple antibiotics and some are even to all of the antibiotics we use. One of the approaches to developing new therapeutics to treat staphylococcal infections is the use of bacteriophages specific to these bacteria or the lytic enzymes of such bacteriophages, which are capable of hydrolyzing the cell walls of these bacteria. In this study, a new bacteriophage vB_SepP_134 (St 134) specific to was described.
View Article and Find Full Text PDFwas discovered as a soil bacterium associated with the rhizosphere. Later, was found to be a multidrug-resistant hospital-associated pathogen. Lytic bacteriophages are prospective antimicrobials; therefore, there is a need for the isolation and characterization of new phages.
View Article and Find Full Text PDFMultidrug-resistant Gram-positive bacteria, including bacteria from the genus , are currently a challenge for medicine. Therefore, the development of new antimicrobials is required. Promising candidates for new antistaphylococcal drugs are phage endolysins, including endolysins from thermophilic phages against other Gram-positive bacteria.
View Article and Find Full Text PDFmainly causes respiratory infections that are associated with a high mortality rate among immunocompromised patients. exhibits a high level of antibiotic resistance and can form biofilms, which complicates the treatment of patients infected with this bacterium. Phages combined with antibiotics could be a promising treatment option.
View Article and Find Full Text PDFwas first discovered in soil; it is associated with the rhizosphere and capable of both protecting roots and stimulating plant growth. Therefore, it has a great potential to be used in biocontrol. The study of phages is important for a further evaluation of their effect on the fitness and properties of host bacteria.
View Article and Find Full Text PDFPhage therapy can be a useful approach in a number of clinical cases associated with multidrug-resistant (MDR) bacterial infections. In this study, we describe a successful consecutive phage and antibiotic application to cure a 3-month-old girl suffering from severe bronchitis after tracheostomy. Bronchitis was associated with two bacterial agents, MDR Pseudomonas aeruginosa and a rare opportunistic pathogen Dolosigranulum pigrum.
View Article and Find Full Text PDFDiabetic foot ulcers occur as a common complication of diabetes. The concomitant infection significantly delays the healing of the ulcers. Antibiotic treatment of infected ulcers is complicated by the formation of microbial biofilms, which are often heterogeneous and resistant to antibiotics.
View Article and Find Full Text PDFis the causative agent of septicemia in fish, and it is associated with significant economic losses in the aquaculture industry. While piscine infections are mainly treated with antibiotics, the emergence of resistance in bacterial populations requires the development of alternative methods of treatment. The use of phages can be one of them.
View Article and Find Full Text PDFZh Vopr Neirokhir Im N N Burdenko
October 2023
Background: Pathogenesis of peritumoral cerebral edema is unclear and potentially associated with glymphatic system dysfunction. Diffusion tensor MRI (DT-MRI) with analysis of ALPS (Analysis along the Perivascular Space) index may be valuable for assessment of edema. This approach visualizes fluid flow along perivascular spaces of deep cerebral veins.
View Article and Find Full Text PDFTwo novel bacteriophages PseuP_222 and Pseu_224 and their host CEMTC 4060 were isolated from the same sample (Inya river, Siberia). Both phages have siphovirus morphology and belong to lambdoid phages. Comparative genome analysis revealed a low nucleotide and amino acid sequence similarity of PseuP_222 and PseuP_224 between themselves, and between them and other lambdoid phages.
View Article and Find Full Text PDFBackground: In connection with the widespread use of explosive devices in military conflicts, in particular in Ukraine, is relevant to detect the biometals changes in the cerebellum and determine the presence of their influence on the behavior changes of rats in the elevated plus maze in the acute period of a mild blast-traumatic brain injury (bTBI).
Methods: The selected rats were randomly divided into 3 groups: Group I - Experimental with bTBI (with an excess pressure of 26-36 kPa), Group II - Sham and Group III - Intact. Behavior studies was in the elevated plus maze.
Implant-associated infections are the most costly problem in modern orthopedics due to the continued increase in the occurrence of antibiotic-resistant bacterial strains that requires the development of new effective antimicrobials. A non-randomized, prospective, open-label, with historical control study on the use of combined phage/antibiotic therapy of periprosthetic joint infection (PJI) was carried out. Forty-five adult patients with deep PJI of the hip joint were involved in the study, with a 12-month follow-up after one-stage revision surgery.
View Article and Find Full Text PDFis one of the environmental species. A number of factors of virulence have been described for this species and it has been reported as a causative agent of urinary tract infection. The first bacteriophage AerP_220 along with its host strain CEMTC 4062 were isolated from river water.
View Article and Find Full Text PDFBackground: The goal of endodontic treatment, along with the preparation of the root canal and giving it a shape corresponding to the obturation technique, is the drug treatment of the canal. The aim of this study was to determine the antibacterial effect of a colloidal solution of nanosilver at its various dilutions on root canal microorganism.
Materials And Methods: A solution of silver nanoparticles at a concentration of 10,000 ppm (1.
Photobiomodul Photomed Laser Surg
August 2022
This study investigated the effect of dentin surface treatment with the erbium, chromium-doped yttrium, scandium, gallium, and garnet (Er,Cr:YSGG) laser on the bond strength of zirconia to dentin. Although it is well-known that resin cement (RC) provides adequate bond strength of zirconia restorations to the tooth structure, many clinicians were not convinced in bonding reliability to zirconia materials. So, they preferred cementing their crowns with glass-ionomer cement (GIC).
View Article and Find Full Text PDFThe Baksan Experiment on Sterile Transitions (BEST) was designed to investigate the deficit of electron neutrinos ν_{e} observed in previous gallium-based radiochemical measurements with high-intensity neutrino sources, commonly referred to as the "gallium anomaly," which could be interpreted as evidence for oscillations between ν_{e} and sterile neutrino (ν_{s}) states. A 3.414-MCi ^{51}Cr ν_{e} source was placed at the center of two nested Ga volumes and measurements were made of the production of ^{71}Ge through the charged current reaction, ^{71}Ga(ν_{e},e^{-})^{71}Ge, at two average distances.
View Article and Find Full Text PDFBackground: The relationship between the inferior alveolar nerve and the root apices of the mandibular molars and premolars is of clinical importance. The aim of this study was to determine the relationship between the mandibular canal (MC) and the mandibular molar root apices using cone-beam computed tomography (CBCT) scanning among residents of the Moscow population.
Materials And Methods: Three hundred CBCT scans for patients aged 20-70 years were analyzed.
Background: Endodontic treatment of various forms of pulpitis with variations of root canal system anatomy should be performed with high quality. The use of various antibacterial agents is aimed at maintaining the success of endodontic treatment. The aim of this study was to evaluate the penetration and fixation of the nano-silver solution on the dentinal surface during endodontic treatment.
View Article and Find Full Text PDFA total of 394 strains of staphylococci found in humans and pets in Novosibirsk, Siberian Russia, were characterized in terms of antibiotic resistance and corresponding genes. Two coagulase-positive and 17 coagulase-negative species were identified. The majority of isolates, with the exception of and hospital isolates, were sensitive to most of the tested antibiotics, and isolates from pets displayed the lowest level of resistance.
View Article and Find Full Text PDFInfectious bronchitis (IB) of chickens is a highly contagious disease characterized by damage of the respiratory system and reproductive organs in young animals caused by a virus of the genus Gamma coronavirus. The condition of the respiratory system caused by the IB virus in chickens has many similarities with the pathology of the respiratory system caused by SARS-CoV-2 in humans. The effectiveness of virucidal drugs (Argovit, Triviron, Ecocid, and lauric acid monoglyceride) was tested on chickens inoculated with a tenfold dose of a vaccine strain based on the attenuated virus H120 against IB of chickens.
View Article and Find Full Text PDFA novel phage, EC151, was isolated and characterized. Electron microscopy revealed that EC151 has a siphovirus-like virion morphology. The EC151 nucleotide sequence shows limited similarity to other phage genomes deposited in the NCBI GenBank database.
View Article and Find Full Text PDFBacteriophages are promising antibacterial agents. Although they have been recognized as bacterial viruses and are considered to be non-interacting with eukaryotic cells, there is growing evidence that phages may have a significant impact on the immune system via interactions with macrophages, neutrophils, and T-cell polarization. In this study, the influence of phages of podovirus, siphovirus, and myovirus morphotypes on humoral immunity of CD-1 mice was investigated.
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