Готові списки джерел за темами / Diplococcus

Добірка наукової літератури з теми "Diplococcus"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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Статті в журналах з теми "Diplococcus"

Flores Fernández, Evelin Margarita, and Luzmila Sofía Álvarado Ysasis. "Ciclo celular por Gram y tinción de fluorescencia modificada en bacterias con aspecto morfotintorial semejante a Neisseria gonorrhoeae aisladas de muestras perianales y uretrales." Nova 7, no. 11 (June 15, 2009): 27. http://dx.doi.org/10.22490/24629448.414.

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Se evaluó el ciclo celular por Gram y tinción de fluorescencia modificada en bacterias aisladas de muestras perianales y uretrales, con observación en frotis de diplococcus Gram negativos o diplococcus anaranjados fluorescentes y cultivo negativo para Neisseria gonorrhoeae, de pacientes que acudieron a la consulta ITS-SIDA del ambulatorio “Dr. Arquímedes Fuentes Serrano”, Cumaná, Venezuela, con el objetivo de mostrar que en las bacterias aisladas, las características morfotintoriales por Gram y fluorescencia semejantes a diplococos, están asociadas al ciclo celular. Se hizo estudio microscópico del ciclo celular, a partir de cultivos sincrónicos a intervalos de tiempo de 5 minutos por 2 horas, tomando alícuotas, fijando en etanol, realizando extendidos y coloreando con Gram y fluorescencia.Se identificó Escherichia coli, Enterobacter aerogenes, Klebsiella pneumoniae, Citrobacter koseri, Staphylococcus epidermidis, S. saprophyticus, Streptococcus b-hemolítico grupo no A-no B y Enterococcus faecalis. Los cocos Gram positivos fueron los que expresaron características morfotintoriales de diplococcusGram negativos. Streptococcus b-hemolítico de 0-15 min, E. faecalis de 60-80 min, S. saprophyticus a los 10y 35, S. epidermidis a los 0,15, 20, 35, 40, 70, 90 y 95 min. Los Staphylococcus por fluorescencia, ademásde visualizarse como diplococcus anaranjados fluorescentes, se observaron verdes y amarillos. El colorvarío cíclicamente, iniciando como amarillo, pasando por anaranjado y luego verde. S. saprophyticus de40-120 min se obsevaron amarillos fluorescentes. S. epidermidis aún a los 50, 60 y 65 min se visualizaroncomo diplococcus anaranjados fluorescentes. Se concluye que los cocos Gram positivos presentan fase dediplococcus Gram negativos y anaranjados fluorescentes en su ciclo celular.

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YAMAGUCHI, KEIZO. "Penicillin resistant Diplococcus pneumoniae." Nihon Naika Gakkai Zasshi 85, no. 2 (1996): 292–96. http://dx.doi.org/10.2169/naika.85.292.

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Grafe, A. "100 Jahre Diplococcus pneumoniae." Naturwissenschaften 73, no. 12 (December 1986): 727. http://dx.doi.org/10.1007/bf00399240.

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Kurtyak, B. M., M. S. Romanovych, T. O. Pundyak, L. V. Romanovych, G. V. Sobko, and М. М. Romanovych. "Conditional pathogenic microflora and its role in the eithiology of acute digestion disorders with features of diarrhea of newborned calves." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 20, no. 83 (March 2, 2018): 304–7. http://dx.doi.org/10.15421/nvlvet8361.

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The problem of treatment of acute digestive disorders with signs of diarrhea in calves remains relevant and important, as there are no sufficiently effective drugs, including antimicrobial effects. The low effectiveness of antibiotics and other chemotherapeutic agents and therapies in the vast majority of farms dictates the need to find new drugs. The purpose of our work was to study the significance of opportunistic microorganisms in the etiology of calving diarrhea. The research was conducted at farms of Lviv and Volyn regions. The incidence of newborn calves with acute digestive disorders with signs of diarrhea ranged from 36.8 to 100%, and mortality ranged from 17.4 to 30.8%. Bacteriological study was subjected to patmaterial from 20 dead calves at the age of 1–7 days. In this case, 88 cultures have been isolated from the internal organs, mesenteric lymph nodes, bone marrow, brain, walls and intestines. According to the culture – morphological properties, the cultures were classified into the following species: Escherichia coli, Proteus vulgaris, Pseudomonas aeruginosa, Diplococcus capsulatus, Clostridium perfringens. In the bacteriological study of all microorganisms isolated - Diplococcus capsulatus 29.5%, Escherichia coli 30.7%, Pseudomonas aeruginosa 19.3%, Clostridium perfringens 11.4%, Proteus vulgaris 9.1%. Out of the 14 households, the causes of the disease of calves with acute gastrointestinal disorders in 35.7% of cases were certain opportunistic pathogens (Escherichia coli, Diplococcus capsulatus, Pseudomonas aeruginosa, Clostridium perfringens, Proteus vulgaris). In most farms (64.28%), the disease was caused by association (2, 3 and more) types of microbes. The pathogenic properties of the isolated cultures were tested on white mice. In determining the pathogenicity of isolated cultures from dead calves on white mice, the most pathogenic were microorganisms of the species Pseudomonas aeruginosa. Experimental mice (42.0%) died within 6–12 hours after infection. Highly pathogenic were mixed cultures of E. coli, diplococci, Pseudomonas aeruginosa, which killed 58.0% of infected mice 24–48 hours after infection. This indicates an increase in the pathogenic properties of microorganisms in the association. In order not to allow the passage of conditionally pathogenic microflora, it is necessary to adhere to the sanitary regime in dispensaries and maternity departments, and the terms of disinfection with variable sectional retention.

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Aristovsky, V. "To the etiology of measles." Kazan medical journal 20, no. 2 (August 11, 2021): 213. http://dx.doi.org/10.17816/kazmj76317.

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Ann Wiebe, Ghita, Sergio Fanella, Jens Wrogemann, Carrie Daymont, and Mubeen Rafay. "Diffuse Bacterial Meningitis and Myelitis Secondary to a Diplococcus Organism." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 43, no. 1 (December 16, 2015): 192–94. http://dx.doi.org/10.1017/cjn.2015.317.

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Feinberg, B. "Gonorrhea in little girls." Journal of obstetrics and women's diseases 7, no. 1 (September 2, 2020): 83–85. http://dx.doi.org/10.17816/jowd7183-85.

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Since then, as vulvo-vaginitis in young girls began to manifest itself both epidemic and endemic, special attention has been paid to this disease. The first was Pott (1883), who pointed out that this disease is based on infection with tripe poison, vaccinated by mothers or close relatives; later and other authors: Widmark, Csri, Frnkel, and in recent times Prochownik, Pott, Dusch and Spaeth found diplococcus in the genital area of such girls, very similar to Neisser's gonococcus.

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Káňová, E., I. Jiménez-Munguía, Ľ. Čomor, Z. Tkáčová, I. Širochmanová, K. Bhide, and M. Bhide. "The Role of Meningococcal Porin B in Protein-Protein Interactions with Host Cells." Folia Veterinaria 62, no. 1 (March 1, 2018): 52–58. http://dx.doi.org/10.2478/fv-2018-0008.

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Abstract Neisseria meningitidis is a Gram-negative diplococcus responsible for bacterial meningitis and fatal sepsis. Ligand-receptor interactions are one of the main steps in the development of neuroinvasion. Porin B (PorB), neisserial outer membrane protein (ligand), binds to host receptors and triggers many cell signalling cascades allowing the meningococcus to damage the host cells or induce immune cells responses via the TLR2-dependent mechanisms. In this paper, we present a brief review of the structure and function of PorB.

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Yin, Charles, and Jeffrey Law. "Community-acquired pneumonia and pneumococcal vaccination in the elderly." University of Western Ontario Medical Journal 84, no. 2 (March 3, 2016): 23–25. http://dx.doi.org/10.5206/uwomj.v84i2.4296.

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Community-acquired pneumonia (CAP), most often caused by infection with the Gram-positive diplococcus Streptococcus pneumoniae, remains a leading cause of death in Canada amongst the elderly. With an aging population in Canada, CAP will soon be a significant challenge to the healthcare system in this country. In this article, we review the characteristics of CAP in the elderly, including its epidemiology, etiology and clinical features. We then provide an overview and history of pneumococcal vaccines and present current recommendations for S pneumoniae vaccination in Canada.

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Koval, Iryna, and Amir Hajiali. "Cavitation action on the cocci bacteria." Romanian Journal of Ecology & Environmental Chemistry 2, no. 2 (October 14, 2020): 45–48. http://dx.doi.org/10.21698/rjeec.2020.206.

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Features of growth of microorganisms on a nutrient medium and their microscopic researches were studied. Cavitation treatment (22 kHz, 91 W, 1.65 W/сm3) of water with the simultaneous action of bubbled inert gases (argon and helium) on the viability of microbial cells (Diplococcus and Sarcina) are presented. The highest water disinfection was obtained for water samples with Sarcina lutea cells for both used gases under cavitation conditions. Both investigated types of cocci bacteria were destroyed faster under Ar/US-action after comparison of the effectiveness of the gas nature action on the water disinfection.

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Більше джерел

Дисертації з теми "Diplococcus"

Koval, І. Z., and T. S. Falyk. "Supplemented Series with Simultaneous Action of Gases and Cavitation on the Diplococcus Destruction." Thesis, Sumy State University, 2016. http://essuir.sumdu.edu.ua/handle/123456789/46783.

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Saturation of the treated aqueous medium by gases during cavitational water disinfection is very important regardless of the method of cavitation perturbation. But process effectiveness depends on the nature of gas bubbling into reaction zone. In [1,2] were shown water disinfection from diplococci bacteria under simultaneous action of cavitation and such gases as argon, oxygen and carbon dioxide. Cultural features of investigated microorganisms are presented in [3]. In previous studies we have found the highest decontamination degree under the action of Ar and cavitation. So, the aim of further research was to study the action of nitrogen and air on the destruction process from the same bacteria types. The experimental conditions: ultrasonic generator of 22 kHz and intensity of 1.65 W/cm3, T=298±1K, P=1•105 Pa, process duration was 2 hours.

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Коваль, Ірина Зеновіївна. "Кавітаційне знезараження води в присутності газів різної природи". Doctoral thesis, Київ, 2014. https://ela.kpi.ua/handle/123456789/8681.

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Strange, Heather Ruth. "Mechanism of Iron Transport Employed by Neisseria Gonorrhoeae: Contribution of Ferric Binding Protein A." VCU Scholars Compass, 2007. http://scholarscompass.vcu.edu/etd_retro/80.

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FbpA is the periplasmic binding protein of the transferrin and lactoferrin-iron transport systems. FbpA is conserved among neisserial species and is required for Neisseria gonorrhoeae to sustain growth on transferrin and lactoferrin. The identification of other putative TonB-dependent outer membrane transporters suggests that gonococci may employ other uncharacterized iron uptake systems that do not require FbpA. Previous work in our lab demonstrated that gonococcal strain FA19 utilizes iron from a number of xenosiderophores of the catecholate and hydroxamate classes. In this study we created conditional FbpA mutants to evaluate whether FbpA plays a role in the ability of gonococci to utilize iron from xenosiderophores. Strain FA19 was able to acquire iron from the xenosiderophores enterobactin and salmochelin in an FbpA-dependent and TonB-independent manner. We were also able to detect an extracellular population of FbpA indicating that FbpA may play a novel role in the internalization of iron in the absence of a dedicated transporter.

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Книги з теми "Diplococcus"

Wood, Martyn, and Marilyn Bradley. Sexually transmitted disease (gonorrhoea). Edited by Patrick Davey and David Sprigings. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199568741.003.0320.

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Gonorrhoea is the term used to describe the clinical manifestations of infection with the bacterium Neisseria gonorrhoeae. Neisseria gonorrhoeae is a Gram-negative diplococcus which usually infects the columnar epithelium of mucous membranes, including the lower male and female genital tracts, the rectum, the pharynx, and the conjunctivae. Transmission is by direct exposure of a mucous membrane to infected secretions, classically via sexual contact. Those who are most at risk of infection include younger age groups (15–29 years), inner-city residents, ethnic minority groups, and men who have sex with men. This chapter discusses the etiology, symptoms, demographics, natural history, complications, demographics, diagnosis, prognosis, and treatment of gonorrhoea.

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Частини книг з теми "Diplococcus"

Bährle-Rapp, Marina. "Diplokokkus (Plur.:-kokken), auch Diplococcus." In Springer Lexikon Kosmetik und Körperpflege, 165. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_3204.

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Davey, Graham P. "Diplococcin Produced by Lactococcus Lactis Subsp. Cremoris." In Bacteriocins of Lactic Acid Bacteria, 273–90. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2668-1_8.

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"Streptococcus pneumoniae A (Diplococcus pneumoniae)." In Encyclopedia of Genetics, Genomics, Proteomics and Informatics, 1888. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6754-9_16235.

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Kumar, Surinder. "Pneumococcus (Diplococcus pneumoniae: Str. pneumoniae)." In Textbook of Microbiology, 254. Jaypee Brothers Medical Publishers (P) Ltd., 2012. http://dx.doi.org/10.5005/jp/books/11668_26.

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Kumar, Surinder. "Pneumococcus (Diplococcus pneumoniae: Streptococcus pneumoniae)." In Essentials of Microbiology, 183. Jaypee Brothers Medical Publishers (P) Ltd., 2016. http://dx.doi.org/10.5005/jp/books/12697_27.

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Kumar, Surinder. "Pneumococcus (Diplococcus pneumoniae/Streptococcus pneumoniae)." In Textbook of Microbiology for Dental Students, 135. Jaypee Brothers Medical Publishers (P) Ltd., 2014. http://dx.doi.org/10.5005/jp/books/12128_21.

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"Diplococcus pneumoniae (old name Pneumococcus)." In Encyclopedia of Genetics, Genomics, Proteomics and Informatics, 511. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6754-9_4506.

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Brandtzaeg, Petter. "Meningococcal infections." In Oxford Textbook of Medicine, 709–22. Oxford University Press, 2010. http://dx.doi.org/10.1093/med/9780199204854.003.070605_update_004.

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Neisseria meningitidis is an obligate human Gram-negative diplococcus. It is carried in the nasopharynx by about 10% of people, with most strains being harmless and inducing immunity. Pathogenic strains usually belong to specific clones that are encapsulated, express pili and the major porin, PorA. Serogroups A, B, and C usually account for more than 90% of all invasive isolates....

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Hodges, Lisa S., and Joseph A. Bocchini. "Branhamella-Moraxella." In Schlossberg's Clinical Infectious Disease, edited by Cheston B. Cunha, 872–74. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780190888367.003.0127.

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This chapter talks about Moraxella catarrhalis as an important etiologic agent of otitis media in children and bronchopulmonary infection in adults with chronic obstructive pulmonary disease (COPD) or impaired host defenses. It discusses Moraxella catarrhalis as a gram-negative unencapsulated diplococcus similar in morphology to the Neisseria. It also mentions Ghon and Pfeiffer, who described Moraxella catarrhalis as Micrococcus catarrhalis in 1902 and has since undergone several reclassifications. The chapter recounts how Moraxella catarrhalis was placed into the genus Branhamella based on fatty acid content and DNA homology. It examines how Moraxella catarrhalis is the most widely accepted nomenclature in the present.

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Barlow, D., Jackie Sherrard, and C. Ison. "Neisseria gonorrhoeae." In Oxford Textbook of Medicine, 722–27. Oxford University Press, 2010. http://dx.doi.org/10.1093/med/9780199204854.003.070606_update_001.

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Neisseria gonorrhoeae is a Gram-negative, intracellular diplococcus that primarily colonizes the columnar epithelium of lower genital tract, only occasionally spreading to the upper genital tract or causing systemic disease. It is almost exclusively transmitted by sexual activity. Clinical features—(1) Oropharyngeal and rectal infections usually produce no symptoms; (2) men—dysuria (50%) and urethral discharge (98%) develop after a median of more than 5 days; complications, e.g. epididymitis, orchitis, are rare; (3) women—there are no specific symptoms in the absence of complications, e.g. salpingitis, bartholinitis; (4) disseminated gonococcal infection—a comparatively benign bacteraemia affecting joints (particularly shoulder and knee) and skin; more common in women than men....

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