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https://www.readbyqxmd.com/read/27919628/trivalent-pneumococcal-protein-vaccine-protects-against-experimental-acute-otitis-media-caused-by-streptococcus-pneumoniae-in-an-infant-murine-model
#1
Qingfu Xu, Karin Pryharski, Michael E Pichichero
BACKGROUND: Currently licensed serotype-based pneumococcal vaccines are effective in preventing invasive pneumococcal diseases, but less effective in preventing non-bacteremic pneumonia and acute otitis media (AOM). We previously reported that a trivalent pneumococcal protein recombinant vaccine (PPrV) protected against pneumonia in a murine model. Here we evaluated PPrV protection against AOM in an infant murine model. METHODS: C57BL/6J mice were intramuscularly vaccinated at 1-3weeks of age with monovalent pneumococcal histidine triad protein D (PhtD), or pneumococcal choline binding protein A (PcpA), or detoxified pneumolysin (PlyD1), or trivalent vaccine, and transtympanically challenged at 7-8weeks of age with 1×10(2)CFU of pneumococcal strain BG7322 (6A) or 1×10(4)CFU of pneumococcal nontypeable strain 0702064MEF...
December 2, 2016: Vaccine
https://www.readbyqxmd.com/read/27919553/the-enhanced-reduction-of-c-and-n-dbp-formation-in-treatment-of-source-water-containing-microcystis-aeruginosa-using-a-novel-ctsac-composite-coagulant
#2
Chunxia Ma, Haiyan Pei, Wenrong Hu, Yuting Wang, Hangzhou Xu, Yan Jin
This study investigated the effect of a chitosan-aluminium chloride (CTSAC) composite coagulation process on reducing the formation of algal organic matters (AOM) related carbonaceous disinfection by-products (C-DBPs) and nitrogenous disinfection by-products (N-DBPs), by removing or adsorbing their precursors. Compared with aluminium chloride (AC) and chitosan (CTS) alone, CTSAC significantly enhanced the removal of dissolved organic matter (DOC), polysaccharide, protein and humic acids, attaining removals of 64...
December 2, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27918383/etiology-of-acute-otitis-media-in-children-less-than-5-years-of-age-a-pooled-analysis-of-10-similarly-designed-observational-studies
#3
Melissa K Van Dyke, Jean-Yves Pirçon, Robert Cohen, Shabir A Madhi, Andrés Rosenblüt, Mercedes Macias Parra, Khalid Al-Mazrou, Gerhard Grevers, Pio Lopez, Laura Naranjo, Felix Pumarola, Nuntigar Sonsuwan, William P Hausdorff
BACKGROUND: Acute otitis media (AOM) is an important cause of childhood morbidity and antibiotic prescriptions. However, the relative importance of the well-known otopathogens, Streptococcus pneumoniae (Spn) and Haemophilus influenzae (Hflu), remains unclear due to a limited number of tympanocentesis-based studies that vary significantly in populations sampled, case definitions, and heptavalent pneumococcal conjugate vaccine (PCV7-CRM) use. METHODS: We conducted a pooled analysis of results from ten AOM etiology studies of similar design the protocols of which were derived from a common protocol and conducted in children 3 months to 5 years of age in different countries...
November 30, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27903558/cost-effectiveness-analysis-of-routine-pneumococcal-vaccination-in-the-uk-a-comparison-of-the-phid-cv-vaccine-and-the-pcv-13-vaccine-using-a-markov-model
#4
Emmanuelle Delgleize, Oscar Leeuwenkamp, Eleni Theodorou, Nicolas Van de Velde
OBJECTIVES: In 2010, the 13-valent pneumococcal conjugate vaccine (PCV-13) replaced the 7-valent vaccine (introduced in 2006) for vaccination against invasive pneumococcal diseases (IPDs), pneumonia and acute otitis media (AOM) in the UK. Using recent evidence on the impact of PCVs and epidemiological changes in the UK, we performed a cost-effectiveness analysis (CEA) to compare the pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine (PHiD-CV) with PCV-13 in the ongoing national vaccination programme...
November 30, 2016: BMJ Open
https://www.readbyqxmd.com/read/27895000/severe-acute-otitis-media-and-acute-mastoiditis-in-adults
#5
Anu Laulajainen Hongisto, Jussi Jero, Antti Markkola, Riste Saat, Antti A Aarnisalo
OBJECTIVE: To evaluate and compare clinical and microbiological findings in adults hospitalized for acute otitis media (AOM) or mastoid infections (acute or latent). MATERIALS AND METHODS: We retrospectively reviewed the medical records of all adults (≥17 years old) hospitalized (between 2003 and 2012) at a tertiary referral center for acute mastoid infections or AOM not responding to outpatient medical treatment. RESULTS: Of the 160 patients in the study sample, 19% had an infection caused by S...
November 28, 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/27888477/impact-of-pediatric-acute-otitis-media-on-child-and-parental-quality-of-life-and-associated-productivity-loss-in-malaysia-a-prospective-observational-study
#6
Bruce Crawford, Siti Sabzah Mohd Hashim, Narayanan Prepageran, Goh Bee See, Genevieve Meier, Keiko Wada, Cheryl Coon, Emmanuelle Delgleize, Michael DeRosa
BACKGROUND: Acute otitis media (AOM) affects both child and parental quality of life (QoL). Data on QoL associated with AOM in Malaysia is sparse, and the burden of indirect costs have not been previously reported. OBJECTIVE: To determine the effect of pediatric AOM on child and parental QoL in Malaysia and its economic impact (indirect costs). METHODS: We utilized a set of QoL questionnaires (PAR-AOM-QOL, OM-6, and EQ-5D) combined with questions addressing work/productivity loss and financial costs associated with caring for a child during his or her illness in an observational, multicenter, prospective study...
November 25, 2016: Drugs—Real World Outcomes
https://www.readbyqxmd.com/read/27879558/impact-of-pneumococcal-conjugate-vaccines-on-selected-head-and-neck-infections-in-hospitalized-israeli-children
#7
Tal Marom, Shiran Bookstein Peretz, Orna Schwartz, Abraham Goldfarb, Yahav Oron, Sharon Ovnat Tamir
INTRODUCTION: Streptococcus pneumoniae is a major pathogen of pediatric head and neck infections (HNIs), e.g. acute otitis media (AOM), acute mastoiditis (AM), acute bacterial sinusitis (ABS) and meningitis. The aim of the study was to characterize the epidemiology of pneumococcal HNIs (pHNIs) before, during, and after the introduction of pneumococcal conjugate vaccines (PCVs). METHODS: Children 0-16 years who were hospitalized with HNIs in the Pediatrics Department in a general hospital between 1/1/2007-12/31/2014 were retrospectively identified...
November 22, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27876571/fusobacterium-nucleatum-increases-proliferation-of-colorectal-cancer-cells-and-tumor-development-in-mice-by-activating-tlr4-signaling-to-nf%C3%AE%C2%BAb-upregulating-expression-of-microrna-21
#8
Yongzhi Yang, Wenhao Weng, Junjie Peng, Leiming Hong, Lei Yang, Yuji Toiyama, Renyuan Gao, Minfeng Liu, Mingming Yin, Cheng Pan, Hao Li, Bomin Guo, Qingchao Zhu, Qing Wei, Mary-Pat Moyer, Ping Wang, Sanjun Cai, Ajay Goel, Huanlong Qin, Yanlei Ma
BACKGROUND & AIMS: Nearly 20% of the global cancer burden can be linked to infectious agents. Fusobacterium nucleatum promotes tumor formation by epithelial cells via unclear mechanisms. We aimed to identify microRNAs (miRNAs) induced by F nucleatum and evaluate their ability to promote colorectal carcinogenesis in mice. METHODS: Colorectal cancer (CRC) cell lines were incubated with F nucleatum or control reagents and analyzed in proliferation and would healing assays...
November 19, 2016: Gastroenterology
https://www.readbyqxmd.com/read/27870813/acute-otitis-media-during-infancy-parent-reported-incidence-and-modifiable-risk-factors
#9
Annemarijn C Prins-van Ginkel, Patricia C J Bruijning-Verhagen, Cuno S P M Uiterwaal, Cornelis K van der Ent, Henriette A Smit, Marieke L A de Hoog
BACKGROUND: Age at exposure to acute otitis media (AOM) risk factors such as daycare attendance, lack of breastfeeding and tobacco smoke is little studied but important for targeting AOM prevention strategies. Moreover, studies are typically restricted to clinically diagnosed AOM, while a significant subset can occur outside the healthcare system, depending on the country-setting. This study aims to determine risk factor exposure and effect of its timing within the first year of life on parent-reported AOM symptom episodes...
November 18, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27865352/plum-polyphenols-inhibit-colorectal-aberrant-crypt-foci-formation-in-rats-potential-role-of-the-mir-143-protein-kinase-b-mammalian-target-of-rapamycin-axis
#10
Nivedita Banerjee, Hyemee Kim, Stephen T Talcott, Nancy D Turner, David H Byrne, Susanne U Mertens-Talcott
The nutritional prevention of aberrant crypt foci by polyphenols may be a crucial step to dietary cancer prevention. The objective of this study was to determine the underlying mechanisms that contribute to the anti-inflammatory and antitumorigenic properties of plum (Prunus salicina L.) polyphenols, including chlorogenic acid and neochlorogenic acid, in azoxymethane (AOM)-treated rats. The hypothesis was that plum polyphenolics suppress AOM-induced aberrant crypt foci formation through alterations in the protein kinase B (AKT)/mammalian target of rapamycin (mTOR) pathway and relative micro-RNA expressions...
October 2016: Nutrition Research
https://www.readbyqxmd.com/read/27863401/isoliquiritigenin-decreases-the-incidence-of-colitis-associated-colorectal-cancer-by-modulating-the-intestinal-microbiota
#11
Minna Wu, Yaqi Wu, Baoguo Deng, Jinsong Li, Haiying Cao, Yan Qu, Xinlai Qian, Genshen Zhong
Imbalances in intestinal bacteria correlate with colitis-associated colorectal cancer (CAC). Traditional Chinese medicines have been used to adjust the gut microbiota, and isoliquiritigenin (ISL), a flavonoid extracted from licorice, has shown antitumor efficacy. In this study, the effects of ISL on CAC development and the gut microbiota were evaluated using an azoxymethane and dextran sulphate sodium (AOM/DSS)-induced mouse model of CAC (CACM). Histopathological analysis suggested that ISL reduced tumor incidence in vivo...
November 15, 2016: Oncotarget
https://www.readbyqxmd.com/read/27845862/bamboo-salt-suppresses-colon-carcinogenesis-in-c57bl-6-mice-with-chemically-induced-colitis
#12
Jaehyun Ju, Ga-Young Lee, Yoon-Se Kim, Hee Kyung Chang, Myoung-Sool Do, Kun-Young Park
The aim of our experiment was to evaluate the anticancer effect of bamboo salt (BS) on C57BL/6 mice in an azoxymethane (AOM)/dextran sodium sulfate (DSS)-induced colon cancer model. BS, solar salt, and purified salt were evaluated for their protective effects during AOM/DSS-induced colon carcinogenesis in C57BL/6 mice. BS, especially after baking for nine separate intervals (BS9x), suppressed colon carcinogenesis in the mice. BS9x decreased colon length shortening, weight-to-length ratios, and tumor counts...
November 2016: Journal of Medicinal Food
https://www.readbyqxmd.com/read/27836279/emission-and-oxidation-of-methane-in-a-meromictic-eutrophic-and-temperate-lake-dendre-belgium
#13
Fleur A E Roland, François Darchambeau, Cédric Morana, Steven Bouillon, Alberto V Borges
We sampled the water column of the Dendre stone pit lake (Belgium) in spring, summer, autumn and winter. Depth profiles of several physico-chemical variables, nutrients, dissolved gases (CO2, CH4, N2O), sulfate, sulfide, iron and manganese concentrations and δ(13)C-CH4 were determined. We performed incubation experiments to quantify CH4 oxidation rates, with a focus on anaerobic CH4 oxidation (AOM), without and with an inhibitor of sulfate reduction (molybdate). The evolution of nitrate and sulfate concentrations during the incubations was monitored...
November 8, 2016: Chemosphere
https://www.readbyqxmd.com/read/27835986/activins-and-their-related-proteins-in-colon-carcinogenesis-insights-from-early-and-advanced-azoxymethane-rat-models-of-colon-cancer
#14
Bassem Refaat, Adel Galal El-Shemi, Amr Mohamed Mohamed, Osama Adnan Kensara, Jawwad Ahmad, Shakir Idris
BACKGROUND: Activin-A may exert pro- or anti-tumorigenic activities depending on cellular context. However, little is known about its role, or the other mature activin proteins, in colorectal carcinoma (CRC). This study measured the expression of activin βA- & βB-subunits, activin type IIA & IIB receptors, smads 2/3/4/6/7 and follistatin in CRC induced by azoxymethane (AOM) in rats. The results were compared with controls and disseminated according to the characteristics of histopathological lesions...
November 11, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27831561/rapidly-cycling-lgr5-stem-cells-are-exquisitely-sensitive-to-extrinsic-dietary-factors-that-modulate-colon-cancer-risk
#15
Eunjoo Kim, Laurie A Davidson, Roger S Zoh, Martha E Hensel, Michael L Salinas, Bhimanagouda S Patil, Guddadarangavvanahally K Jayaprakasha, Evelyn S Callaway, Clinton D Allred, Nancy D Turner, Brad R Weeks, Robert S Chapkin
The majority of colon tumors are driven by aberrant Wnt signaling in intestinal stem cells, which mediates an efficient route toward initiating intestinal cancer. Natural lipophilic polyphenols and long-chain polyunsaturated fatty acids (PUFAs) generally suppress Wnt- and NF-κB- (nuclear factor-κ light-chain enhancer of activated B-cell) related pathways. However, the effects of these extrinsic agents on colonic leucine-rich repeat-containing G-protein-coupled receptor 5-positive (Lgr5(+)) stem cells, the cells of origin of colon cancer, have not been documented to date...
November 10, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27810126/randomized-controlled-trial-of-juzen-taiho-to-in-children-with-recurrent-acute-otitis-media
#16
Makoto Ito, Yumiko Maruyama, Ken Kitamura, Toshimitsu Kobayashi, Haruo Takahashi, Noboru Yamanaka, Yasuaki Harabuchi, Hideki Origasa, Tomokazu Yoshizaki
OBJECTIVE: Recurrent acute otitis media (AOM) in young children is rapidly increasing worldwide. Repeated antibiotic use leads to antibiotic-resistant pathogen development. Complementary and alternative medicine approaches have been suggested as a supplemental treatment option to conventional antimicrobial medicine. This randomized, parallel-group, open-label, non-herbal medicine controlled trial assessed the efficacy of a traditional Japanese herbal medicine, juzen-taiho-to (JTT) for AOM prevention in otitis-prone children...
October 31, 2016: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/27802328/is-time-to-reach-edss-6-0-faster-in-patients-with-late-onset-versus-young-onset-multiple-sclerosis
#17
Raed Alroughani, Saeed Akhtar, Samar Ahmed, Raed Behbehani, Jasem Al-Hashel
BACKGROUND & OBJECTIVES: Published natural history data on late-onset of multiple sclerosis are limited. We aimed to assess the risk of attaining EDSS 6.0 among patients with late-onset (> 40 years) MS (LOMS) and young-onset (18-40 years) MS (YOMS). METHODS: This cross-sectional cohort study was conducted to identify LOMS and YOMS patients' with relapsing remitting course at MS diagnosis. Time (years) to reach sustained EDSS 6.0 was compared between LOMS and AOMS patients...
2016: PloS One
https://www.readbyqxmd.com/read/27801847/different-susceptibilities-between-apoe-and-ldlr-deficient-mice-to-inflammation-associated-colorectal-carcinogenesis
#18
Takuji Tanaka, Takeru Oyama, Shigeyuki Sugie, Masahito Shimizu
Hypercholesterolemia resulting in atherosclerosis is associated with an increased risk of ischemic heart disease and colorectal cancer (CRC). However, the roles of apoliprotein (Apo) E (Apoe) and low-density lipoprotein (Ldl) receptor (Ldlr) in colorectal carcinogenesis have not yet been investigated. In this study, we examined the susceptibility of Apoe-deficient and Ldlr-deficient mice, which are genetic animal models of atherosclerosis to azoxymethane (AOM)/dextran sodium sulfate (DSS)-induced colorectal carcinogenesis...
October 28, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27798547/streptococcus-pneumoniae-serotypes-and-antibiotic-susceptibility-patterns-in-middle-ear-fluid-isolates-during-acute-otitis-media-and-nasopharyngeal-isolates-during-community-acquired-alveolar-pneumonia-in-central-romania
#19
Raluca-Ileana Lixandru, Cristian Falup-Pecurariu, Laura Bleotu, Alice Mercas, Eugene Leibovitz, Ron Dagan, David Greenberg, Oana Falup-Pecurariu
INTRODUCTION: Streptococcus pneumoniae is a common cause of community-acquired alveolar pneumonia (CAAP) and acute otitis media (AOM) in children. Romania has high rates of S. pneumoniae antibiotic resistance. The pneumococcal conjugated vaccines (PCVs) are not being used routinely in this country. The aims of the study were: 1) To compare pneumococcal antibiotic resistance patterns in AOM and CAAP in children from central Romania; and 2) to compare differences in the distribution of pneumococcal serotypes isolated from the middle ear fluid (MEF) of children with AOM and from the nasopharynx (NP) of children with CAAP...
October 25, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27791118/archaea-catalyze-iron-dependent-anaerobic-oxidation-of-methane
#20
Katharina F Ettwig, Baoli Zhu, Daan Speth, Jan T Keltjens, Mike S M Jetten, Boran Kartal
Anaerobic oxidation of methane (AOM) is crucial for controlling the emission of this potent greenhouse gas to the atmosphere. Nitrite-, nitrate-, and sulfate-dependent methane oxidation is well-documented, but AOM coupled to the reduction of oxidized metals has so far been demonstrated only in environmental samples. Here, using a freshwater enrichment culture, we show that archaea of the order Methanosarcinales, related to "Candidatus Methanoperedens nitroreducens," couple the reduction of environmentally relevant forms of Fe(3+) and Mn(4+) to the oxidation of methane...
October 24, 2016: Proceedings of the National Academy of Sciences of the United States of America
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