1,569 results match your criteria Peptostreptococcus Infection


Alteration of gut bacteria composition among individuals with asymptomatic Blastocystis infection: A case-control study.

Microb Pathog 2022 Jun 16;169:105639. Epub 2022 Jun 16.

Zoonoses Research Center, Jahrom University of Medical Sciences, Jahrom, Iran; Department of Parasitology and Mycology, Jahrom University of Medical Sciences, Jahrom, Iran. Electronic address:

The gut microbiota consists a diverse and complex ecosystem that is involved in beneficial functions as well as potentially harmful conditions for human. Blastocystis sp. is a common parasite of the digestive tract of animals and humans; however, limited data is available concerning the association of asymptomatic Blastocystis infection and gut bacteria composition. Read More

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Nuclear Magnetic Resonance Metabolomics of Symbioses between Bacterial Vaginosis-Associated Bacteria.

mSphere 2022 May 2:e0016622. Epub 2022 May 2.

Institute of Pharmaceutical Science, School of Cancer & Pharmaceutical Science, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom.

Bacterial vaginosis (BV) is a dysbiosis of the vaginal microbiome, characterized by low levels of lactobacilli and overgrowth of a diverse group of bacteria, associated with higher risk of a variety of infections, surgical complications, cancer, and preterm birth (PTB). Despite the lack of a consistently applicable etiology, spp. are often associated with both BV and PTB, and has known symbiotic relationships with both Peptostreptococcus anaerobius and Gardnerella vaginalis. Read More

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Vaginal microbiota as an unusual cause of spondylodiscitis.

Arch Gynecol Obstet 2022 Apr 18. Epub 2022 Apr 18.

Service de Microbiologie Clinique, Groupe Hospitalier Paris Seine Saint-Denis, AP-HP, Bobigny, France.

The incidence of extra pelvic infections due to vaginal microflora bacteria has increased as growth media and methods of isolation have improved. However, bone infections seem to be still relatively rare, and little is known about their risk factors, clinical presentation, treatment and final outcome. We describe here a spondylodiscitis due to Gardnerella vaginalis, Atopobium vaginae, Peptostreptococcus indolicus and Prevotella amnii, anaerobic bacteria from vaginal microbiota. Read More

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Captive Breeding and Trichomonas gallinae Alter the Oral Microbiome of Bonelli's Eagle Chicks.

Microb Ecol 2022 Apr 7. Epub 2022 Apr 7.

Department of Nutrition and Food Science, Faculty of Veterinary Sciences, University Complutense of Madrid, Madrid, Spain.

Bonelli's eagle (Aquila fasciata) is an endangered raptor species in Europe, and trichomonosis is one of the menaces affecting chicks at nest. In this paper, we attempt to describe the oral microbiome of Bonelli's eagle nestlings and evaluate the influence of several factors, such as captivity breeding, Trichomonas gallinae infection, and the presence of lesions at the oropharynx. The core oral microbiome of Bonelli's eagle is composed of Firmicutes, Bacteroidota, Fusobacteria and Proteobacteria as the most abundant phyla, and Megamonas and Bacteroides as the most abundant genera. Read More

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Characterization of Altered Oropharyngeal Microbiota in Hospitalized Patients With Mild SARS-CoV-2 Infection.

Front Cell Infect Microbiol 2022 15;12:824578. Epub 2022 Mar 15.

Department of Microbiology, The Key Laboratory of Microbiology and Parasitology of Anhui Province, The Key Laboratory of Zoonoses of High Institutions in Anhui, School of Basic Medical Sciences, Anhui Medical University, Hefei, China.

Coronavirus disease 2019 (COVID-19) remains a serious emerging global health problem, and little is known about the role of oropharynx commensal microbes in infection susceptibility and severity. Here, we present the oropharyngeal microbiota characteristics identified by full-length 16S rRNA gene sequencing through the NANOPORE platform of oropharynx swab specimens from 10 mild COVID-19 patients and 10 healthy controls. Our results revealed a distinct oropharyngeal microbiota composition in mild COVID-19 patients, characterized by enrichment of opportunistic pathogens such as and and depletion of , , and . Read More

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Gastrointestinal microbiome and : Eradicate, leave it as it is, or take a personalized benefit-risk approach?

World J Gastroenterol 2022 Feb;28(7):766-774

Non-Infectious Disease Metabolomics Group, Institute of Experimental Medicine, St. Petersburg 197376, Russia.

() is generally regarded as a human pathogen and a class 1 carcinogen, etiologically related to gastric and duodenal ulcers, gastric cancer, and mucosa-associated lymphoid tissue lymphoma. However, can also be regarded as a commensal symbiont. Unlike other pathogenic/ opportunistic bacteria, colonization in infancy is facilitated by T helper type 2 immunity and leads to the development of immune tolerance. Read More

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February 2022

sp. nov., new bacterial species isolated from healthy indigenous congolese volunteer.

Heliyon 2022 Mar 14;8(3):e09102. Epub 2022 Mar 14.

IHU-Méditerranée Infection, Marseille, France.

The Microbial Culturomics Project aiming to discover several bacterial species made it possible to isolate the strain Marseille-P4308 from a stool sample of a healthy indigenous Congolese volunteer. Strain Marseille-P4308 is a Gram-positive coccus shaped bacterium that optimally grows at 37 °C. The 16S rRNA gene sequence of the strain has a 96. Read More

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Human microbial dysbiosis as driver of gynecological malignancies.

Biochimie 2022 Jun 14;197:86-95. Epub 2022 Feb 14.

Amity Institute of Molecular Medicine & Stem Cell Research, Amity University, Sector 125, Noida, Uttar Pradesh, 201303, India. Electronic address:

Gynecological cancers that affect female reproductive tract, remain at the top of the global cancer burden list with high relapse rate and mortality. Notwithstanding development of several novel therapeutic interventions including poly-ADP-ribose polymerase inhibitors, this family of malignancies remain deadly. The human microbiome project demonstrated that dysbiosis of health resident microflora is associated with several pathologies including malignancies of the female reproductive tract and detailed characterization of species variation and host-microbe interaction could provide clues for identification of early diagnostic biomarker, preventive and therapeutic interventions. Read More

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Microbiological profile of aerobic and anaerobic bacteria and its clinical significance in antibiotic sensitivity of odontogenic space infection: A prospective study of 5 years.

Natl J Maxillofac Surg 2021 Sep-Dec;12(3):372-379. Epub 2021 Dec 13.

Department of Oral and Maxillofacial Surgery, Sri Rajiv Gandhi Dental College and Hospital, Bengaluru, Karnataka, India.

Introduction: Odontogenic infections are mixed aerobic-anaerobic microbial flora. Infections caused by anaerobic bacteria are serious and life-threatening. The microbial specificity in odontogenic infections is technique sensitive depending on the sampling and culturing of specimens. Read More

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December 2021

Pott's puffy tumour of the frontal and Parietal bones with subgaleal abscess as a complication of acute sinusitis - a case report.

J Pak Med Assoc 2021 Dec;71(Suppl 8)(12):S170-S173

Department of Surgery, College of Medicine, Mustansiriyah University, Baghdad, Iraq.

Acute sinusitis is a frequent medical condition that can affect any age group and may lead infrequently to very serious life-threatening complications. These complications include the spread of infection to frontal and other cranial bones, meninges, and other intracranial structures that require urgent medical actions to prevent mortality and morbidity. We report the case of acute frontal sinusitis in a 14 years old male who presented with fever, severe headache, and fluctuant swelling of the nasal root, and right supraorbital and frontoparietal regions. Read More

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December 2021

Assessing the Iatrogenic Contribution to Contamination During Root Canal Treatment.

J Endod 2022 Apr 23;48(4):479-486. Epub 2022 Jan 23.

Department of Endodontics, Centre for Oral, Clinical and Translational Sciences, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK; Centre for Host Microbiome Interactions, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK; London Centre for Nanotechnology, London, UK.

Introduction: Asepsis in endodontics aims to control all potential sources of infection. Inadvertent introduction of bacteria into the root canal system may occur when the aseptic chain is breached during treatment. Therefore, measures are taken to prevent such microbial access and establish an aseptic environment. Read More

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An Unusual Case of Perirenal Abscess Caused by and Species.

Case Rep Infect Dis 2022 13;2022:4028085. Epub 2022 Jan 13.

Sinai Hospital, Baltimore, MD, USA.

Intra-abdominal abscesses mostly derive from the intra-abdominal viscera. spp. are Gram-negative rods which are known to cause oral infections but rarely have been documented to cause extra-intestinal infections resulting in abscesses. Read More

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January 2022

Tonsillitis-Related Arthritis: Advanced Understandings of Tonsillitis and Sterile Inflammatory Arthritis.

Case Rep Rheumatol 2021 23;2021:2983267. Epub 2021 Dec 23.

Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo 13-8421, Japan.

A 49-year-old man developed acute aseptic arthritis of the nonmigratory and asymmetrical type in his knee, ankle, and bilateral metatarsal joints 13 days after treatment with antibiotics for acute tonsillitis. He was diagnosed with tonsillitis-related arthritis after other rheumatic diseases were ruled out. Treatment with salazosulfapyridine, methotrexate, and methylprednisolone for 3 months did not completely improve. Read More

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December 2021

Bacterial variation in the oral microbiota in multiple sclerosis patients.

PLoS One 2021 30;16(11):e0260384. Epub 2021 Nov 30.

Department of Microbiology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.

Background: Microorganisms in oral cavity are called oral microbiota, while microbiome consists of total genome content of microorganisms in a host. Interaction between host and microorganisms is important in nervous system development and nervous diseases such as Autism, Alzheimer, Parkinson and Multiple Sclerosis (MS). Bacterial infections, as an environmental factor in MS pathogenesis play role in T helper 17(Th17) increase and it enhancing the production of pro-inflammatory cytokines such as Interlukin-21(IL-21), IL-17 and IL -22. Read More

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January 2022

The Pathogenic Bacteria of Deep Neck Infection in Patients with Type 1 Diabetes, Type 2 Diabetes, and Without Diabetes from Chang Gung Research Database.

Microorganisms 2021 Sep 29;9(10). Epub 2021 Sep 29.

Department of Otolaryngology, Chang Gung Memorial Hospital, Chiayi 61363, Taiwan.

Deep neck infection (DNI) is a lethal emergent condition. Patients with types 1 and 2 diabetes mellitus (T1DM and T2DM, respectively) are predisposed to DNI and have poorer prognoses. The mainstay of the treatment is surgical drainage and antibiotics; however, the pathogenic bacteria of T1DM-DNI have not been studied before. Read More

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September 2021

Peptostreptococcus anaerobius: Pathogenicity, identification, and antimicrobial susceptibility. Review of monobacterial infections and addition of a case of urinary tract infection directly identified from a urine sample by MALDI-TOF MS.

Anaerobe 2021 Dec 7;72:102461. Epub 2021 Oct 7.

Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Hospital de Clínicas José de San Martín, Departamento de Bioquímica Clínica, Cátedra de Microbiología Clínica, Laboratorio de Bacteriología, Buenos Aires, Argentina; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Hospital de Clínicas José de San Martín, Departamento de Bioquímica Clínica, Cátedra de Microbiología Clínica, Laboratorio de Bacteriología, INFIBIOC, Buenos Aires, Argentina.

Peptostreptococcus anaerobius is a gram-positive anaerobic coccus (GPAC) found in the gastrointestinal and vaginal microbiota. The organism is mainly found in polymicrobial and scarcely in monobacterial infections such as prosthetic and native endocarditis. Anaerobic bacteria have rarely been reported as the cause of urinary tract infection (UTI). Read More

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December 2021

Interrelationship between the Microbial Communities of the Root Canals and Periodontal Pockets in Combined Endodontic-Periodontal Diseases.

Microorganisms 2021 Sep 10;9(9). Epub 2021 Sep 10.

Department of Restorative Dentistry, Division of Endodontics, Piracicaba Dental School, State University of Campinas -UNICAMP, Piracicaba 13400-001, SP, Brazil.

Periodontal and Endodontic diseases are biofilm-related diseases. The presence of microorganisms in root canals (RCs) and the complex microbiota of periodontal pockets (PPs) contribute to the development of endodontic-periodontal diseases. This study performed a systemic analysis using state-of-the-art sequence data to assess the microbial composition of infected RCs and PPs to further assess the microbiota and verify the possibility of cross-infection between these sites. Read More

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September 2021

Efficacy of needle aspiration in patients with oral-maxillofacial abscesses: A retrospective study of 15 consecutive patients.

Am J Otolaryngol 2022 Jan-Feb;43(1):103216. Epub 2021 Sep 11.

Department of Oral and Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; College of Stomatology, Shanghai Jiao Tong University, Shanghai, China; National Center for Stomatology, Shanghai, China; National Clinical Research Center for oral Diseases, Shanghai, China; Shanghai Key Laboratory of Stomatalogy, Shanghai, China. Electronic address:

The aim of this study was to determine the adequacy and safety of needle aspiration (NA) as an alternative to open surgical drainage for oral-maxillofacial abscesses. Fifteen consecutive patients who were diagnosed with oral-maxillofacial abscesses via contrast-enhanced CT from January 2020 to December 2020 were included. All patients were on antibiotics and treated with NA under local anaesthesia using a 20 mL syringe. Read More

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January 2022

In Vitro Antimicrobial Susceptibility Profiles of Gram-Positive Anaerobic Cocci Responsible for Human Invasive Infections.

Microorganisms 2021 Aug 4;9(8). Epub 2021 Aug 4.

Service de Bactériologie-Hygiène Hospitalière, CHU de Rennes, F-35033 Rennes, France.

The aim of this multicentre study was to determine the in vitro susceptibility to anti-anaerobic antibiotics of Gram-positive anaerobic cocci (GPAC) isolates responsible for invasive infections in humans. A total of 133 GPAC isolates were collected in nine French hospitals from 2016 to 2020. All strains were identified to the species level (MALDI-TOF mass spectrometry, 16S rRNA sequencing). Read More

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Anti-bacterial and anti-viral effects of Fengreqing oral liquid () in vitro and in vivo.

J Tradit Chin Med 2021 08;41(4):530-538

State Key Laboratory of Southwestern Chinese Medicine Resources, Basic Medical college, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.

Objective: To investigate the anti-bacterial and anti-viral effects of Fengreqing oral liquid (, FRQ) in vitro and in vivo.

Methods: The minimum inhibitory concentrations of Fengreqing Oral Liquid against six gram-positive bacteria (Staphylococcus aureus, Streptococcus mutans, Peptostreptococcus anaerobius, Hemolytic streptococcus, Streptococcus pneumoniae, Klebsiella pneumoniae), seven gram-negative bacteria (Escherichia coli, Actinobacillus actinomycetemcomitans, Porphyromonas gingivalis, Haemophilus influenzae, Helicobacter pylori, Pseudomonas aeruginosa, Gardnerella vaginalis) and Candida albicans were detected by the paper disc diffusion method. The inhibition rate of A/PuertoRico/8/34(H1N1) (PR8) influenza virus in different concentrations of Fengreqing oral solution was detected by chicken embryo method. Read More

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Prevalence of unculturable bacteria in the periapical abscess: A systematic review and meta-analysis.

PLoS One 2021 5;16(8):e0255485. Epub 2021 Aug 5.

Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, UAE.

Objective: To assess the prevalence of unculturable bacteria in periapical abscess, radicular cyst, and periapical granuloma.

Methods: PubMed, Scopus, Science Direct, and Ovid databases were systematically searched from January 1990 to May 2020. All the included studies were cross-sectional design. Read More

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November 2021

Clinical and microbiological features of anaerobic implant-related infection in 80 patients after orthopedic surgery.

Anaerobe 2021 Oct 3;71:102413. Epub 2021 Jul 3.

Department of Clinical Laboratory, Beijing Jishuitan Hospital, Beijing, 100035, China. Electronic address:

Objectives: Implant-related infection is a common complication after orthopedic surgery, but there is limited research focused on anaerobic infections. We retrospectively analyzed data from 80 patients with anaerobic implant-related infections in order to investigate the clinical features, bacterial distribution and antimicrobial resistant characteristics of this disease.

Methods: 80 patients who underwent implant-related infections with anaerobes were included. Read More

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October 2021

causing native hip joint septic arthritis.

Proc (Bayl Univ Med Cent) 2021 Apr 20;34(4):486-488. Epub 2021 Apr 20.

Department of Orthopedics, UT Health San Antonio, San Antonio, Texas.

is a bacterium normal to oral and gastrointestinal flora that has been implicated in cases of discitis, osteomyelitis, and prosthetic joint infections, often involving dental procedures or periodontal disease. It is an extremely rare cause of infection outside of these circumstances. We describe a case of septic arthritis of the native hip joint due to . Read More

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Comparative activities of sitafloxacin against recent clinical isolates in hospitals across China.

Eur J Clin Microbiol Infect Dis 2021 Nov 19;40(11):2271-2283. Epub 2021 May 19.

Institute of Antibiotics, Huashan Hospital, Fudan University, 12 M. Wulumuqi Rd., Shanghai, 200040, China.

Sitafloxacin is one of the newer generation fluoroquinolones. Considering the ever-changing antimicrobial resistance, it is necessary to monitor the activities of sitafloxacin against recent pathogenic isolates. Therefore, we determined the minimum inhibitory concentrations (MICs) of sitafloxacin and comparators by broth microdilution or agar dilution method against 1101 clinical isolates collected from 2017 to 2019 in 31 hospitals across China. Read More

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November 2021

Prevalence and antibiotic susceptibility trends of periodontal pathogens in the subgingival microbiota of German periodontitis patients: A retrospective surveillance study.

J Clin Periodontol 2021 09 27;48(9):1216-1227. Epub 2021 Jun 27.

Division of Microbiology, Paul-Ehrlich-Institut, Langen, Germany.

Objective: This retrospective surveillance study aimed to follow periodontitis-associated bacterial profiles and to identify time-dependent changes in antibiotic susceptibility patterns.

Materials And Methods: From 2008 to 2015, bacterial specimen from deep periodontal pockets were collected from a total of 7804 German adults diagnosed with periodontitis. Presence of selected bacteria was confirmed by anaerobic culture and nucleic acid amplification. Read More

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September 2021

Penile bacteria associated with HIV seroconversion, inflammation, and immune cells.

JCI Insight 2021 04 22;6(8). Epub 2021 Apr 22.

Department of Environmental and Occupational Health, Milken Institute School of Public Health, George Washington University, Washington, DC, USA.

The foreskin is a site of heterosexual acquisition of HIV-1 among uncircumcised men. However, some men remain HIV-negative despite repeated, unprotected vaginal intercourse with HIV-positive partners, while others become infected after few exposures. The foreskin microbiome includes a diverse group of anaerobic bacteria that have been linked to HIV acquisition. Read More

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HPV infection and bacterial microbiota in the semen from healthy men.

BMC Infect Dis 2021 Apr 21;21(1):373. Epub 2021 Apr 21.

Department of Paediatrics, University of Turku & Turku University Hospital, Turku, Finland.

Background: Aberrant microbiota composition has been linked to disease development at numerous anatomical sites. Microbiota changes in reaction to viral infections, such as human papillomavirus (HPV), have been investigated almost exclusively in the female reproductive tract. However, HPV infection may also affect male health by reducing semen quality and fertility. Read More

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-Induced Necrotizing Fasciitis Complicated by Multidrug-Resistant Infection: Efficacy of Chemical Necrectomy Using 40% Benzoic Acid.

Int J Low Extrem Wounds 2021 Apr 15:15347346211004305. Epub 2021 Apr 15.

University Hospital Brno, Masaryk University, Jihomoravský, Czech Republic.

Necrotizing fasciitis is a life-threatening skin and soft tissue infection associated with high morbidity and mortality in adult patients. This infection can present as either type 1 infection caused by a mixed microflora (, , sp., and sp. Read More

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Multicentre study of the burden of multidrug-resistant bacteria in the aetiology of infected diabetic foot ulcers.

Afr J Lab Med 2021 23;10(1):1261. Epub 2021 Mar 23.

Department of Medical Microbiology and Parasitology, Obafemi Awolowo University Teaching Hospitals, Ile-Ife, Nigeria.

Background: Infected diabetic foot ulcer (IDFU) is a public health issue and the leading cause of non-traumatic limb amputation. Very few published data on IDFU exist in most West African countries.

Objective: The study investigated the aetiology and antibacterial drug resistance burden of IDFU in tertiary hospitals in Osun state, Nigeria, between July 2016 and April 2017. Read More

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Comparative analysis of the vaginal microbiome of Chinese women with Trichomonas vaginalis and mixed infection.

Microb Pathog 2021 May 16;154:104790. Epub 2021 Feb 16.

Department of Gynecology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China.

The high prevalence and serious long-term sequelae of Trichomonas vaginalis (TV) infection worldwide is of a particular concern; however, data regarding the differences in the composition of the vaginal microbiome in cases of single TV infection or mixed infections (i.e., presence of TV and bacterial vaginosis) are scarce. Read More

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