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https://www.readbyqxmd.com/read/29234378/antibiofilm-and-anti-inflammatory-activities-of-houttuynia-cordata-decoction-for-oral-care
#1
Yasuko Sekita, Keiji Murakami, Hiromichi Yumoto, Kouji Hirao, Takashi Amoh, Natsumi Fujiwara, Katsuhiko Hirota, Hideki Fujii, Takashi Matsuo, Yoichiro Miyake, Yoshiki Kashiwada
Dental biofilms that form in the oral cavity play a critical role in the pathogenesis of several infectious oral diseases, including dental caries, periodontal disease, and oral candidiasis. Houttuynia cordata (HC, Saururaceae) is a widely used traditional medicine, for both internal and external application. A decoction of dried HC leaves (dHC) has long been consumed as a health-promoting herbal tea in Japan. We have recently reported that a water solution of HC poultice ethanol extract (wHCP) exerts antimicrobial and antibiofilm effects against several important oral pathogens...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29234327/influence-of-microbiota-on-intestinal-immune-system-in-ulcerative-colitis-and-its-intervention
#2
REVIEW
Sai-Long Zhang, Shu-Na Wang, Chao-Yu Miao
Ulcerative colitis (UC) is an inflammatory bowel disease (IBD) with chronic and recurrent characteristics caused by multiple reasons. Although the pathogenic factors have not been clarified yet, recent studies have demonstrated that intestinal microbiota plays a major role in UC, especially in the immune system. This review focuses on the description of several major microbiota communities that affect UC and their interactions with the host. In this review, eight kinds of microbiota that are highly related to IBD, including Faecalibacterium prausnitzii, Clostridium clusters IV and XIVa, Bacteroides, Roseburia species, Eubacterium rectale, Escherichia coli, Fusobacterium, and Candida albicans are demonstrated on the changes in amount and roles in the onset and progression of IBD...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29232563/immunologic-burden-links-periodontitis-to-acute-coronary-syndrome
#3
John M Liljestrand, Susanna Paju, Milla Pietiäinen, Kåre Buhlin, G Rutger Persson, Markku S Nieminen, Juha Sinisalo, Päivi Mäntylä, Pirkko J Pussinen
BACKGROUND AND AIMS: Periodontitis, a common polymicrobial inflammatory disease in the tooth supporting tissues, is a risk factor for coronary artery disease. One of the proposed underlying mechanisms is the systemic immune response to periodontal infection. We studied how serum antibodies against seven periodontal pathogens and their subgingival levels associate with each other, periodontitis, and coronary artery disease. METHODS: The Parogene cohort included 505 Finnish patients (mean age 63 y) who underwent coronary angiography, and clinical and radiographic oral examinations...
December 6, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29229753/fusobacterium-travels-with-colorectal-cancer-cells
#4
(no author information available yet)
Fusobacterium is enriched in colorectal cancer, but until now it has been unclear whether these bacteria drive tumorigenesis. A recent study shows that colorectal cancer cells take their microbiomes with them as they metastasize-and that targeting Fusobacterium with antibiotics reduces tumor growth in mice xenografts.
December 11, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/29220094/osteocytes-play-an-important-role-in-experimental-periodontitis-in-healthy-and-diabetic-mice-through-expression-of-rankl
#5
Dana T Graves, Ahmed Alshabab, Mayra Laino Albiero, Marcelo Mattos, Joice Dias Correa, Shanshan Chen, Yang Yang
AIM: Periodontitis results from bacteria induced inflammation. A key cytokine, RANKL is produced by a number of cell types. The cellular source of RANKL critical for periodontitis has not been established. METHODS: We induced periodontal bone loss by oral inoculation of Porphyromonas gingivalis and Fusobacterium nucleatum in both normoglycemic and streptozotocin induced type 1 diabetic mice. Experimental transgenic mice had osteocyte specific deletion of floxed RANKL mediated by DMP-1 driven Cre recombinase...
December 8, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29217844/microbiome-fusobacterium-persistence-in-colorectal-cancer
#6
Ashley York
No abstract text is available yet for this article.
December 8, 2017: Nature Reviews. Microbiology
https://www.readbyqxmd.com/read/29217301/-gut-microbiota-what-impact-on-colorectal-carcinogenesis-and-treatment
#7
REVIEW
Antoine Bruneau, Minh-Tam Baylatry, Anne Christine Joly, Harry Sokol
The gut microbiota, composed of 1014 microorganisms, is now considered as a "hidden organ", regarding to its digestive, metabolic and immune functions, which are helpful to its host. For the last 15 years, advances in molecular biology have highlighted the association of gut microbiota dysbiosis with several diseases, including colorectal cancer. An increased abundance of some bacteria (including Fusobacterium nucleatum, Bacteroides fragilis, Escherichia coli) is associated with cancer, whereas others seem to be protective (Faecalibacterium prausnitzii)...
December 4, 2017: Bulletin du Cancer
https://www.readbyqxmd.com/read/29216848/anterior-sacral-meningocele-infected-with-fusobacterium-in-a-patient-with-recently-diagnosed-colorectal-carcinoma-a-case-report
#8
Anne K Braczynski, Marc A Brockmann, Torben Scholz, Jan-Philipp Bach, Jörg B Schulz, Simone C Tauber
BACKGROUND: Anterior sacral meningoceles are rare, and usually occur with other malformations of the posterior lower spine. While these are more frequently reported in pediatric cohorts, we report a case in an elderly woman. CASE PRESENTATION: We report on a 71 year-old woman with a recently diagnosed colorectal adenocarcinoma who presented with a severe bacterial meningitis. The cerebrospinal fluid cell count revealed a pleocytosis of 80,000 cells/μl and a severe disturbance of the blood-brain-barrier...
December 8, 2017: BMC Neurology
https://www.readbyqxmd.com/read/29216329/characterization-of-fusobacterium-varium-fv113-g1-isolated-from-a-patient-with-ulcerative-colitis-based-on-complete-genome-sequence-and-transcriptome-analysis
#9
Tsuyoshi Sekizuka, Yumiko Ogasawara, Toshifumi Ohkusa, Makoto Kuroda
Fusobacterium spp. present in the oral and gut flora is carcinogenic and is associated with the risk of pancreatic and colorectal cancers. Fusobacterium spp. is also implicated in a broad spectrum of human pathologies, including Crohn's disease and ulcerative colitis (UC). Here we report the complete genome sequence of Fusobacterium varium Fv113-g1 (genome size, 3.96 Mb) isolated from a patient with UC. Comparative genome analyses totally suggested that Fv113-g1 is basically assigned as F. varium, in particular, it could be reclassified as notable F...
2017: PloS One
https://www.readbyqxmd.com/read/29214046/high-resolution-bacterial-16s-rrna-gene-profile-meta-analysis-and-biofilm-status-reveal-common-colorectal-cancer-consortia
#10
Julia L Drewes, James R White, Christine M Dejea, Payam Fathi, Thevambiga Iyadorai, Jamuna Vadivelu, April C Roslani, Elizabeth C Wick, Emmanuel F Mongodin, Mun Fai Loke, Kumar Thulasi, Han Ming Gan, Khean Lee Goh, Hoong Yin Chong, Sandip Kumar, Jane W Wanyiri, Cynthia L Sears
Colorectal cancer (CRC) remains the third most common cancer worldwide, with a growing incidence among young adults. Multiple studies have presented associations between the gut microbiome and CRC, suggesting a link with cancer risk. Although CRC microbiome studies continue to profile larger patient cohorts with increasingly economical and rapid DNA sequencing platforms, few common associations with CRC have been identified, in part due to limitations in taxonomic resolution and differences in analysis methodologies...
2017: NPJ Biofilms and Microbiomes
https://www.readbyqxmd.com/read/29207065/estrogen-inhibits-the-overgrowth-of-escherichia%C3%A2-coli-in-the-rat-intestine-under-simulated-microgravity
#11
Yongtao Yang, Changmin Qu, Shuwen Liang, Gang Wang, Haolun Han, Na Chen, Xiaoying Wang, Zhiwen Luo, Changqing Zhong, Yan Chen, Lianyong Li, Wei Wu
Microgravity can affect many aspects of intestinal homeostasis, leading to an increased risk of colitis. Estrogen, the most frequently affected hormone when under simulated microgravity, regulates the permeability of the colonic mucosa barrier. The associations between alterations in intestinal microbiota and increased susceptibility under microgravity have not been thoroughly elucidated. The aim of the present study was to evaluate the changes in intestinal microbiota under simulated microgravity and to investigate the protective effect of estrogen against those changes...
November 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29206142/composition-and-antibacterial-activity-of-the-essential-oils-of-orthosiphon-stamineus-benth-and-ficus-deltoidea-jack-against-pathogenic-oral-bacteria
#12
Nuramirah Azizan, Shahida Mohd Said, Zamirah Zainal Abidin, Ibrahim Jantan
In this study, the essential oils of Orthosiphon stamineus Benth and Ficus deltoidea Jack were evaluated for their antibacterial activity against invasive oral pathogens, namely Enterococcus faecalis, Streptococcus mutans, Streptococcus mitis, Streptococcus salivarius, Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis and Fusobacterium nucleatum. Chemical composition of the oils was analyzed using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). The antibacterial activity of the oils and their major constituents were investigated using the broth microdilution method (minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC))...
December 5, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29204301/human-infection-with-fusobacterium-necrophorum-without-jugular-venous-thrombosis-a-varied-presentation-of-lemierre-s-syndrome
#13
Muhammad Asim Rana, Yashwant Kumar, Abdullah Ali Lashari, Ahmed F Mady
Lemierre's syndrome is also known as postangina septicemia, which is commonly caused by Fusobacterium necrophorum also known as Necrobacillus and also by other microorganisms like Staphylococcus, Streptococcus, Peptostreptococcus, and Bacteroides. Though the disease starts as an upper respiratory tract infection, it may spread and cause thrombophlebitis of the internal jugular vein. It may present itself through cranial nerve palsy or sepsis involving distant organs like the lungs or bones. It is also known as forgotten disease because of its rarity...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/29201150/differences-in-the-gut-microbiota-of-dogs-canis-lupus-familiaris-fed-a-natural-diet-or-a-commercial-feed-revealed-by-the-illumina-miseq-platform
#14
Junhyung Kim, Jae-Uk An, Woohyun Kim, Soomin Lee, Seongbeom Cho
Background: Recent advances in next-generation sequencing technologies have enabled comprehensive analysis of the gut microbiota, which is closely linked to the health of the host. Consequently, several studies have explored the factors affecting gut microbiota composition. In recent years, increasing number of dog owners are feeding their pets a natural diet i.e., one consisting of bones, raw meat (such as chicken and beef), and vegetables, instead of commercial feed. However, the effect of these diets on the microbiota of dogs (Canis lupus familiaris) is unclear...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/29190775/transcriptome-profiling-analysis-of-senescent-gingival-fibroblasts-in-response-to-fusobacterium-nucleatum-infection
#15
Sun-Hee Ahn, Sung-Min Chun, Chungoo Park, Jong-Hee Lee, Seok-Woo Lee, Tae-Hoon Lee
Periodontal disease is caused by dental plaque biofilms. Fusobacterium nucleatum is an important periodontal pathogen involved in the development of bacterial complexity in dental plaque biofilms. Human gingival fibroblasts (GFs) act as the first line of defense against oral microorganisms and locally orchestrate immune responses by triggering the production of reactive oxygen species and pro-inflammatory cytokines (IL-6 and IL-8). The frequency and severity of periodontal diseases is known to increase in elderly subjects...
2017: PloS One
https://www.readbyqxmd.com/read/29180323/-pathogen-analysis-in-patients-with-diabetic-foot-osteomyelitis-using-16s-rrna-high-throughput-sequencing
#16
Ping Hu, Meng-Chen Zou, Ying Cao, Yan-Ling Pan, Xiang-Rong Luo, Ya Jiang, Yao-Ming Xue, Fang Gao
OBJECTIVE: To analyze the characteristics of pathogenic microorganisms in the infected bone tissues in patients with diabetic foot osteomyelitis (DFO) using 16S rRNA high-throughput sequencing to facilitate rapid and accurate detection of pathogens and effective infection control. METHODS: Between September, 2016 and April, 2017, 16 patients with DFO were admitted in our department and infected bone specimens were obtained during debridement. The pathogenic microorganisms in the specimens were identified using both 16S rRNA high-throughput sequencing and automatic blood culture analyzer, and the characteristics of the microflora were analyzed based on 16S rRNA sequencing data in comparison with the results of blood culture...
November 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/29179775/fusobacterium-emphysematous-pyomyositis-with-necrotizing-fasciitis-of-the-leg-presenting-as-compartment-syndrome-a-case-report
#17
Eduardo Smith-Singares, Joseph Adjei Boachie, Izaskun M Iglesias, Leland Jaffe, Adam Goldkind, Eric I Jeng
BACKGROUND: Fusobacterium necrophorum is a common agent of disease in humans, but the occurrence of primary infections outside the head and neck area is extremely rare. While infection with Fusobacterium necrophorum has a rather benign course above the thorax, the organism is capable of producing very severe disease when located in unusual sites, including various forms of septic thrombophlebitis. No infections of the leg have been documented before; thus, antibiotic coverage for Fusobacterium is currently not recommended in this area...
November 28, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29170280/analysis-of-fusobacterium-persistence-and-antibiotic-response-in-colorectal-cancer
#18
Susan Bullman, Chandra S Pedamallu, Ewa Sicinska, Thomas E Clancy, Xiaoyang Zhang, Diana Cai, Donna Neuberg, Katherine Huang, Fatima Guevara, Timothy Nelson, Otari Chipashvili, Timothy Hagan, Mark Walker, Aruna Ramachandran, Begoña Diosdado, Garazi Serna, Nuria Mulet, Stefania Landolfi, Santiago Ramon Y Cajal, Roberta Fasani, Andrew J Aguirre, Kimmie Ng, Elena Élez, Shuji Ogino, Josep Tabernero, Charles S Fuchs, William C Hahn, Paolo Nuciforo, Matthew Meyerson
Colorectal cancers comprise a complex mixture of malignant cells, non-transformed cells and microorganisms. Fusobacterium nucleatum is among the most prevalent bacterial species in colorectal cancer tissues. Here we show that colonization of human colorectal cancers with Fusobacterium and its associated microbiome, including Bacteroides, Selenomonas and Prevotella species, is maintained in distal metastases, demonstrating microbiome stability between paired primary-metastatic tumors. In situ hybridization analysis revealed that Fusobacterium is predominantly associated with cancer cells in the metastatic lesions...
November 23, 2017: Science
https://www.readbyqxmd.com/read/29163445/in-silico-analysis-of-putrefaction-pathways-in-bacteria-and-its-implication-in-colorectal-cancer
#19
Harrisham Kaur, Chandrani Das, Sharmila S Mande
Fermentation of undigested proteins in human gastrointestinal tract (gut) by the resident microbiota, a process called bacterial putrefaction, can sometimes disrupt the gut homeostasis. In this process, essential amino acids (e.g., histidine, tryptophan, etc.) that are required by the host may be utilized by the gut microbes. In addition, some of the products of putrefaction, like ammonia, putrescine, cresol, indole, phenol, etc., have been implicated in the disease pathogenesis of colorectal cancer (CRC). We have investigated bacterial putrefaction pathways that are known to be associated with such metabolites...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29162924/dysbiosis-of-the-microbiome-in-gastric-carcinogenesis
#20
Natalia Castaño-Rodríguez, Khean-Lee Goh, Kwong Ming Fock, Hazel M Mitchell, Nadeem O Kaakoush
The gastric microbiome has been proposed as an etiological factor in gastric carcinogenesis. We compared the gastric microbiota in subjects presenting with gastric cancer (GC, n = 12) and controls (functional dyspepsia (FD), n = 20) from a high GC risk population in Singapore and Malaysia. cDNA from 16S rRNA transcripts were amplified (515F-806R) and sequenced using Illumina MiSeq 2 × 250 bp chemistry. Increased richness and phylogenetic diversity but not Shannon's diversity was found in GC as compared to controls...
November 21, 2017: Scientific Reports
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