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Gotowe bibliografie tematyczne / Streptococcus agalactiae alterations

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Gotowa bibliografia na temat „Streptococcus agalactiae alterations”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Streptococcus agalactiae alterations"

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Adikesavalu, Harresh, Sayani Banerjee, Avijit Patra, and Thangapalam Jawahar Abraham. "Meningoencephalitis in farmed monosex Nile tilapia (Oreochromis niloticus L.) caused by Streptococcus agalactiae." Archives of Polish Fisheries 25, no. 3 (2017): 187–200. http://dx.doi.org/10.1515/aopf-2017-0018.

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Abstract Aquaculture of tilapia is a new research venture in India. With intensification in farming practices, tilapia are increasingly susceptible to bacterial infections. This article describes the isolation and identification of pathogenic bacteria from cultured monosex Nile tilapia, Oreochromis niloticus (L.), that experienced moderate to severe mortalities in West Bengal, India between September and August 2014 and histopathological alterations in various organs. Gram-positive diplococci, identified as Streptococcus agalactiae with Streptococcus identification kits and 16S rDNA sequencing

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Gergova, Raina, Vasil Boyanov, Adile Muhtarova, and Alexandra Alexandrova. "A Review of the Impact of Streptococcal Infections and Antimicrobial Resistance on Human Health." Antibiotics 13, no. 4 (2024): 360. http://dx.doi.org/10.3390/antibiotics13040360.

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Streptococcus pneumoniae, Streptococcus pyogenes (GAS), and Streptococcus agalactiae (GBS) are bacteria that can cause a range of infections, some of them life-threatening. This review examines the spread of antibiotic resistance and its mechanisms against antibiotics for streptococcal infections. Data on high-level penicillin-resistant invasive pneumococci have been found in Brazil (42.8%) and Japan (77%). The resistance is caused by mutations in genes that encode penicillin-binding proteins. Similarly, GAS and GBS strains reported from Asia, the USA, and Africa have undergone similar transfo

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Sharon, Joshi, Thangapalam Jawahar Abraham, Arya Sen, et al. "Effects of Streptococcus agalactiae infection and oral florfenicol administration on the hemato-biochemistry, erythrocyte morphology and histopathology of Oreochromis niloticus." Journal of Fisheries 13, no. 1 (2025): 131209. https://doi.org/10.17017/j.fish.720.

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Streptococcosis is considered one of the most important diseases affecting farmed tilapia, causing severe economic losses. Antimicrobial therapy is the principal control measure applied during outbreaks. This research assessed the efficacy of florfenicol (FFC) when fed at 15 mg kg biomass–1 day–1 for 10 days against Streptococcus agalactiae infection in Oreochromis niloticus in terms of survival, changes in hemato-biochemistry, erythro-morphology, and histoarchitecture of the vital organs. Streptococcus agalactiae was moderately virulent to O. niloticus with a lethal dose (LD50) of 1.26×108 ce

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Haenni, Marisa, Laure Galofaro, Mathilde Ythier, et al. "Penicillin-Binding Protein Gene Alterations in Streptococcus uberis Isolates Presenting Decreased Susceptibility to Penicillin." Antimicrobial Agents and Chemotherapy 54, no. 3 (2010): 1140–45. http://dx.doi.org/10.1128/aac.00915-09.

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ABSTRACT Streptococcus uberis is an environmental pathogen commonly causing bovine mastitis, an infection that is generally treated with penicillin G. No field case of true penicillin-resistant S. uberis (MIC > 16 mg/liter) has been described yet, but isolates presenting decreased susceptibility (MIC of 0.25 to 0.5 mg/liter) to this drug are regularly reported to our laboratory. In this study, we demonstrated that S. uberis can readily develop penicillin resistance in laboratory-evolved mutants. The molecular mechanism of resistance (acquisition of mutations in penicillin-binding protein 1A

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Pretto-Giordano, Lucienne Garcia, Ernst Eckehardt Müller, Julio Cesar de Freitas, and Vanessa Gomes da Silva. "Evaluation on the Pathogenesis of Streptococcus agalactiae in Nile Tilapia (Oreochromis niloticus)." Brazilian Archives of Biology and Technology 53, no. 1 (2010): 87–92. http://dx.doi.org/10.1590/s1516-89132010000100011.

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The pathogenesis of a Streptococcus agalactiae was evaluated in a three-period experiment. Two groups of 40 fishes were intraperitoneally (i.p.) challenged in each experimental period with different infective doses of the pathogen. Doses varied from 1.0 x 10(6) to 1.5 x 10(8) CFU/fish. One group of 40 tilapia i.p. injected with tryptic soy broth (TSB) was used as a control group in each period. Mortalities varied from 67.5% in group 8 (infective dose 1.0 x 10(6) CFU/fish) to 90.0% in group 1 (infective dose 1.5 x 10(8) CFU/fish). Significant differences in mortalities were found only between g

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MIURA, Ernani, and Maria Cristina MARTIN. "Group B streptococcal neonatal infections in Rio Grande do Sul, Brazil." Revista do Instituto de Medicina Tropical de São Paulo 43, no. 5 (2001): 243–46. http://dx.doi.org/10.1590/s0036-46652001000500001.

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Group B Streptococcus is the most common pathogen found in neonatal sepsis in North America. OBJECTIVES: We describe 15 cases of neonatal infections by Group B Streptococcus (Streptococcus agalactiae) at a Neonatal Intensive Care Unit of a public and teaching hospital. METHODS: We conducted a study at Hospital de Clínicas de Porto Alegre, from January 1st, 1996 to June 30, 1999. Diagnosis of neonatal infection was established according to the findings of Group B Streptococcus in blood culture associated with alterations resembling sepsis on the basis of clinical picture and laboratory findings

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Oliveira, Pâmella Schramm, Aline Rossato, Larissa da Silva Silveira, et al. "GRAPHENE OXIDE AND REDUCED GRAPHENE OXIDE." International Journal for Innovation Education and Research 9, no. 12 (2021): 142–69. http://dx.doi.org/10.31686/ijier.vol9.iss12.3572.

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To present a possible new alternative for wound treatment, this work evaluated the biological safety and therapeutic efficacy of graphene oxide (GO) and reduced graphene oxide (rGO) nanoparticles (NPs). First, the nanostructures were studied in silico and showed to be able to inhibit the production of some pro-inflammatory cytokines and stimulate the production of the anti-inflammatory cytokine IL-10, especially rGO. The results of the morphological and structural characterization of GO NPs synthesized from the Hummers method and reduced by ascorbic acid, were consistent with the literature, c

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Franza, Thierry, Annika Rogstam, Saravanamuthu Thiyagarajan, et al. "NAD+ pool depletion as a signal for the Rex regulon involved in Streptococcus agalactiae virulence." PLOS Pathogens 17, no. 8 (2021): e1009791. http://dx.doi.org/10.1371/journal.ppat.1009791.

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In many Gram-positive bacteria, the redox-sensing transcriptional repressor Rex controls central carbon and energy metabolism by sensing the intra cellular balance between the reduced and oxidized forms of nicotinamide adenine dinucleotide; the NADH/NAD+ ratio. Here, we report high-resolution crystal structures and characterization of a Rex ortholog (Gbs1167) in the opportunistic pathogen, Streptococcus agalactiae, also known as group B streptococcus (GBS). We present structures of Rex bound to NAD+ and to a DNA operator which are the first structures of a Rex-family member from a pathogenic b

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Karapandzova, Marija, Gjose Stefkov, Ivana Cvetkovikj, Elena Trajkovska-Dokik, Ana Kaftandzieva, and Svetlana Kulevanova. "Chemical Composition and Antimicrobial Activity of the Essential Oils of Pinus peuce (Pinaceae) Growing Wild in R. Macedonia." Natural Product Communications 9, no. 11 (2014): 1934578X1400901. http://dx.doi.org/10.1177/1934578x1400901124.

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The chemical composition and antimicrobial activity of the essential oils isolated from twigs with needles (T+N) and from twigs without needles (T-N) from wild Pinus peuce Griseb. (Pinaceae), from three different locations in R. Macedonia, were investigated. Essential oil yields of T+N ranged from 7.5 mL/kg to 12.5 mL/kg and for T-N from 13.8 mL/kg to 17.3 mL/kg. GC/FID/MS analysis of the essential oils revealed eighty-four components, representing 93.7–95.7% and 91.2–92.0% of the T+N and T-N oils, respectively. The major components in T+N and T-N oils were monoterpenes: α-pinene (23.8–39.9%,

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Kienesberger, Bernhard, Beate Obermüller, Georg Singer, et al. "(S)-Reutericyclin: Susceptibility Testing and In Vivo Effect on Murine Fecal Microbiome and Volatile Organic Compounds." International Journal of Molecular Sciences 22, no. 12 (2021): 6424. http://dx.doi.org/10.3390/ijms22126424.

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We aimed to assess the in vitro antimicrobial activity and the in vivo effect on the murine fecal microbiome and volatile organic compound (VOC) profile of (S)-reutericyclin. The antimicrobial activity of (S)-reutericyclin was tested against Clostridium difficile, Listeria monocytogenes, Escherichia coli, Enterococcus faecium, Staphylococcus aureus, Staphylococcus (S.) epidermidis, Streptococcus agalactiae, Pseudomonas aeruginosa and Propionibacterium acnes. Reutericyclin or water were gavage fed to male BALBc mice for 7 weeks. Thereafter stool samples underwent 16S based microbiome analysis a

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Części książek na temat "Streptococcus agalactiae alterations"

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Mat Zin, Ain Auzureen, Ruhil Hayati Hamdan, Mohd Hafiz Jamaludin, Jasni Sabri, and Li Peng Tan. "Histopathology Alteration of Red Hybrid Tilapia (Oreochromis Spp.) Caused by Streptococcus Agalactiae Infection." In Charting the Sustainable Future of ASEAN in Science and Technology. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3434-8_19.

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