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https://www.readbyqxmd.com/read/27906427/the-role-of-diet-on-gut-microbiota-composition
#1
S Bibbò, G Ianiro, V Giorgio, F Scaldaferri, L Masucci, A Gasbarrini, G Cammarota
Gut microbiota is characterized by an inter-individual variability due to genetic and environmental factors. Among the environmental ones, dietary habits play a key role in the modulation of gut microbiota composition. There are main differences between the intestinal microbiota of subjects fed with prevalent Western diet and that of subjects with a diet rich in fibers. Specific changes in the composition of gut microbiota have been demonstrated among subjects according to a different dietary intake. A particular diet may promote the growth of specific bacterial strains, driving hosts to a consequent alteration of fermentative metabolism, with a direct effect on intestinal pH, which can be responsible for the development of a pathogenic flora...
November 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27904775/disease-evolution-and-heterogeneity-in-bilateral-breast-cancer
#2
Elena Fountzilas, Vassiliki Kotoula, Flora Zagouri, Eleni Giannoulatou, George Kouvatseas, George Pentheroudakis, Triantafyllia Koletsa, Mattheos Bobos, Kyriaki Papadopoulou, Epaminontas Samantas, Efterpi Demiri, Spyros Miliaras, Christos Christodoulou, Sofia Chrisafi, Evangelia Razis, Florentia Fostira, Dimitrios Pectasides, George Zografos, George Fountzilas
Bilateral breast cancers (BBC) are currently treated as independent tumors arising in the same patient. Herein, we investigated whether BBC indeed evolve independently at the genomic level. We examined paired targeted next generation sequencing genotypes from 155 paraffin tumors corresponding to 76 BBC patients (75 women and one man; 52 concurrent and 24 metachronous), for coding mutations (amino acid changing, minor allele frequency <0.1%) and single nucleotide polymorphism (SNP) zygosity. Germline genotypes were available for 29 patients...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27901131/porous-silicon-based-biosensors-towards-real-time-optical-detection-of-target-bacteria-in-the-food-industry
#3
Naama Massad-Ivanir, Giorgi Shtenberg, Nitzan Raz, Christel Gazenbeek, Dries Budding, Martine P Bos, Ester Segal
Rapid detection of target bacteria is crucial to provide a safe food supply and to prevent foodborne diseases. Herein, we present an optical biosensor for identification and quantification of Escherichia coli (E. coli, used as a model indicator bacteria species) in complex food industry process water. The biosensor is based on a nanostructured, oxidized porous silicon (PSi) thin film which is functionalized with specific antibodies against E. coli. The biosensors were exposed to water samples collected directly from process lines of fresh-cut produce and their reflectivity spectra were collected in real time...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900664/improvement-production-of-hyaluronic-acid-by-streptococcus-zooepidemicus-in-sugarcane-molasses
#4
Nicole Caldas Pan, Hanny Cristina Braga Pereira, Maria de Lourdes Corradi da Silva, Ana Flora Dalberto Vasconcelos, Maria Antonia Pedrine Colabone Celligoi
Microbial hyaluronic acid (HA) production has been preferred rather than extraction from animal tissue for medical and cosmetic applications. In this context, to obtain an economically competitive HA production by Streptococcus zooepidemicus, culture conditions were studied to improve the polymer production in sugarcane molasses. The highest HA production by S. zooepidemicus ATCC 39920 achieved was 2.825 g. L(-1) in a 4.5 L bioreactor with controlled pH (8.0) and medium containing molasses (85.35 g.L(-1) total sugar) pretreated with activated charcoal and yeast extract (50 g...
November 30, 2016: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/27899923/community-metabolome-correlations-of-gut-microbiota-from-child-turcotte-pugh-of-a-and-b-patients
#5
Xiao Wei, Shan Jiang, Xiangna Zhao, Huan Li, Weishi Lin, Boxing Li, Jing Lu, Yansong Sun, Jing Yuan
The gut flora are widely involved in the cometabolism with the host and have evident effects on the metabolic phenotype of host. This study performed a metabolome analysis of the intestinal microbiota specific for liver cirrhosis. The study population included patients with Child-Turcotte-Pugh score of A (AP, n = 5) and B (BP, n = 5), and control subjects (NM, n = 3). Metagenomic DNA from fecal microbiota was extracted followed by metagenomic sequencing through Illumina MiSeq high throughput sequencing of 16S rRNA regions...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27898021/salivary-microbiome-diversity-in-caries-free-and-caries-affected-children
#6
Shan Jiang, Xiaoli Gao, Lijian Jin, Edward C M Lo
Dental caries (tooth decay) is an infectious disease. Its etiology is not fully understood from the microbiological perspective. This study characterizes the diversity of microbial flora in the saliva of children with and without dental caries. Children (3-4 years old) with caries (n = 20) and without caries (n = 20) were recruited. Unstimulated saliva (2 mL) was collected from each child and the total microbial genomic DNA was extracted. DNA amplicons of the V3-V4 hypervariable region of the bacterial 16S rRNA gene were generated and subjected to Illumina Miseq sequencing...
November 25, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27896950/ppar%C3%AE-agonists-negatively-regulate-%C3%AE-iib%C3%AE-3-integrin-outside-in-signalling-and-platelet-function-through-upregulation-of-protein-kinase-a-activity
#7
A J Unsworth, N Kriek, A P Bye, K Naran, T Sage, G D Flora, J M Gibbins
BACKGROUND: Agonists for the peroxisome proliferator activated receptor PPARγ, have been shown to have inhibitory effects on platelet activity following stimulation by GPVI and GPCR agonists. OBJECTIVES: Profound effects on thrombus formation led us to suspect a role for PPARγ agonists in the regulation of integrin αIIbβ3 mediated signalling. Both GPVI and GPCR signalling pathways lead to αIIbβ3 activation, and signalling through αIIbβ3 plays a critical role in platelet function and normal haemostasis...
November 29, 2016: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/27896258/secondary-abdominal-pregnancy-in-human-immunodeficiency-virus-positive-woman
#8
Myoung Chan Kim, Hudson Manyanga, Flora Lwakatare
We report on an abdominal pregnancy in human immunodeficiency virus-positive mother, currently on antiretroviral therapy, which was discovered incidentally while training the obstetric ultrasound capacity building program. Although abdominal pregnancy is a rare form of ectopic pregnancy, it may be more common in women with HIV infection because they tend to have a higher rate of sexually transmitted diseases than the general population. The positive diagnosis of abdominal pregnancy is difficult to establish and is usually missed during prenatal assessment particularly in settings that lack routine ultrasound examination as is the case in most developing countries...
November 2016: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/27895446/a-case-of-fatal-sepsis-due-to-multidrug-resistant-corynebacterium-striatum
#9
M Chatzopoulou, T Koufakis, I Voulgaridi, I Gabranis, M Tsiakalou
BACKGROUND: Although non-diphtheria corynebacteria have traditionally been regarded as avirulent members of human bacterial flora, their pathogenic potential is increasingly recognized in our time. Reasons for this include the prolonged survival of severely ill and immunocompromised patients, the development of more invasive diagnostic and therapeutic procedures and the sub-optimal use of antibiotics that disrupts normal microbial balance and favors superinfections. CASE REPORT: We present a rare case of sepsis due to multidrug-resistant Corynebacterium striatum in a 76-year-old host...
January 2016: Hippokratia
https://www.readbyqxmd.com/read/27893354/summary-report-of-the-first-international-conference-on-inhibitors-in-haemophilia-a
#10
Sebastien Lacroix-Desmazes, David W Scott, Jenny Goudemand, Marijke Van Den Berg, Michael Makris, Alice S Van Velzen, Elena Santagostino, David Lillicrap, Frits R Rosendaal, Anneliese Hilger, Zuben E Sauna, Johannes Oldenburg, Lorenzo Mantovani, M Elisa Mancuso, Craig Kessler, Charles R M Hay, Paul Knoebl, Giovanni Di Minno, Keith Hoots, Amanda Bok, Mark Brooker, Erica Buoso, Pier Mannuccio Mannucci, Flora Peyvandi
No abstract text is available yet for this article.
November 25, 2016: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/27891439/o-brien-s-granuloma-a-case-report
#11
Pratik Mukesh Thacker, Kashinath Nayak, Flora Dorothy Lobo, Pavithra Govindasamy
Actinic granuloma is a self-limiting chronic disorder with elastolytic granulomas, mainly of the sun exposed skin and unknown pathogenesis. We report a case of a middle aged woman with multiple annular erythematous lesions. Histopathology revealed degenerated elastic fibres with histiocyte aggregates surrounded by multiple giant cells suggestive of elastolytic granulomas. She also had associated dyslipidemia and hypothyroidism. Actinic granuloma is relatively rare in the Indian population and needs to be differentiated from conditions like sarcoidosis and granuloma annulare...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27891319/hyaluronic-acid-hope-of-light-to-black-triangles
#12
Jyotsana Tanwar, Shital A Hungund
Interdental papilla construction, especially in the esthetic area, is one of the most challenging tasks. Interdental papilla loss might occur due to several reasons as a consequence of periodontal surgery or trauma. The purpose of this study is to report the reconstruction of lost interdental papilla using hyaluronic acid gel. Hyaluronic acid is a glycosaminoglycan molecule with anti-inflammatory, anti-edematous properties on periodontal tissues invaded by submicrobial flora. It enhances wound healing and accelerates periodontal repair and regeneration...
September 2016: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/27890584/a-sedge-plant-as-the-source-of-kangaroo-island-propolis-rich-in-prenylated-p-coumarate-ester-and-stilbenes
#13
Colin C Duke, Van H Tran, Rujee K Duke, Abdallah Abu-Mellal, George T Plunkett, Douglas I King, Kaiser Hamid, Karen L Wilson, Russell L Barrett, Jeremy J Bruhl
Propolis samples from Kangaroo Island, South Australia, were investigated for chemical constituents using high-field nuclear magnetic resonance spectral profiling. A type of propolis was found containing a high proportion of prenylated hydroxystilbenes. Subsequently, the botanical origin of this type of propolis was identified using a beehive propolis depletion method and analysis of flora. Ligurian honey bees, Apis mellifera ligustica Spinola, were found to produce propolis from resin exuded by the Australian native sedge plant Lepidosperma sp...
November 24, 2016: Phytochemistry
https://www.readbyqxmd.com/read/27889163/differential-detection-of-pathogenic-yersinia-spp-by-fluorescence-in-situ-hybridization
#14
Alexander Rohde, Jens Andre Hammerl, Bernd Appel, Ralf Dieckmann, Sascha Al Dahouk
Yersinia enterocolitica, Y. pseudotuberculosis and Y. pestis are pathogens of major medical importance, which are responsible for a considerable number of infections every year. The detection of these species still relies on cultural methods, which are slow, labour intensive and often hampered by the presence of high amounts of accompanying flora. In this study, fluorescence in situ hybridization (FISH) was used to develop a fast, sensitive and reliable alternative to detect viable bacteria in food. For this purpose, highly specific probes targeting the 16S and 23S ribosomal RNA were employed to differentially detect each of the three species...
April 2017: Food Microbiology
https://www.readbyqxmd.com/read/27887777/adamts13-specific-circulating-immune-complexes-as-potential-predictors-of-relapse-in-patients-with-acquired-thrombotic-thrombocytopenic-purpura
#15
Ilaria Mancini, Barbara Ferrari, Carla Valsecchi, Silvia Pontiggia, Marco Fornili, Elia Biganzoli, Flora Peyvandi
BACKGROUND: Acquired thrombotic thrombocytopenic purpura (TTP) is a rare thrombotic microangiopathy due to the development of autoantibodies against the VWF-cleaving protease ADAMTS13. ADAMTS13-specific circulating immune complexes (CICs) have been described in patients with acquired TTP, but their clinical relevance remained to be established. The aim of this study was to assess the association between ADAMTS13-specific CICs and ADAMTS13-related measurements, clinical and laboratory markers of disease severity, and occurrence of TTP relapse, in autoimmune TTP patients...
November 22, 2016: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/27886271/speciation-and-genetic-diversity-in-centaurea-subsect-phalolepis-in-anatolia
#16
Jordi López-Pujol, Sara López-Vinyallonga, Alfonso Susanna, Kuddisi Ertuğrul, Tuna Uysal, Osman Tugay, Arbi Guetat, Núria Garcia-Jacas
Mountains of Anatolia are one of the main Mediterranean biodiversity hotspots and their richness in endemic species amounts for 30% of the flora. Two main factors may account for this high diversity: the complex orography and its role as refugia during past glaciations. We have investigated seven narrow endemics of Centaurea subsection Phalolepis from Anatolia by means of microsatellites and ecological niche modelling (ENM), in order to analyse genetic polymorphisms and getting insights into their speciation...
November 25, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27885419/ketoconazole-inhibits-malassezia-furfur-morphogenesis-in-vitro-under-filamentation-optimized-conditions
#17
Sirida Youngchim, Joshua D Nosanchuk, Siriporn Chongkae, Nongnuch Vanittanokom
Malassezia furfur, a constituent of the normal human skin flora, is an etiological agent of pityriasis versicolor, which represents one of the most common human skin diseases. Under certain conditions, both exogenous and endogenous, the fungus can transition from a yeast form to a pathogenic mycelial form. To develop a standardized medium for reproducible production of the mycelial form of M. furfur to develop and optimize susceptibility testing for this pathogen, we examined and characterized variables, including kojic acid and glycine concentration, agar percentage, and pH, to generate a chemically defined minimal medium on which specific inoculums of M...
November 24, 2016: Archives of Dermatological Research
https://www.readbyqxmd.com/read/27884335/pneumonia-prevention-in-intubated-patients-given-sucralfate-versus-proton-pump-inhibitors-and-or-histamine-ii-receptor-blockers
#18
Gene A Grindlinger, Sarah B Cairo, Carole B Duperre
BACKGROUND: Ventilator-associated pneumonia (VAP) is a common cause of infectious morbidity and mortality in the intensive care unit (ICU). The type of stress-ulcer prophylaxis (SUP) given to ventilated patients may, in part, be responsible. We observed an increase in VAP as ventilator bundle compliance increased and a decrease in VAP when bundle compliance decreased. We reasoned that SUP which raises gastric pH such as proton-pump inhibitors (PPIs) and histamine II (H2) receptor antagonists as opposed to SUP which does not raise pH such as sucralfate (S) may be responsible and also may alter the causative bacteria...
December 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27883906/infant-food-applications-of-complex-carbohydrates-structure-synthesis-and-function
#19
Dorothy L Ackerman, Kelly M Craft, Steven D Townsend
Professional health bodies such as the World Health Organization (WHO), the American Academy of Pediatrics (AAP), and the U.S. Department of Health and Human Services (HHS) recommend breast milk as the sole source of food during the first year of life. This position recognizes human milk as being uniquely suited for infant nutrition. Nonetheless, most neonates in the West are fed alternatives by 6 months of age. Although inferior to human milk in most aspects, infant formulas are able to promote effective growth and development...
November 11, 2016: Carbohydrate Research
https://www.readbyqxmd.com/read/27882211/novel-perspectives-on-the-role-of-the-human-microbiota-in-regenerative-medicine-and-surgery
#20
Tommaso Pellegatta, Marco Saler, Viola Bonfanti, Giovanni Nicoletti, Angela Faga
Plastic surgery is transitioning from a fine craftsmanship to a regenerative science. In wound healing, the role of microorganisms is no longer considered to be just counteracting, but also promoting. Furthermore, host-microbe interactions are essential for numerous aspects of normal mammalian physiology, from metabolic activity to immune homeostasis. Each area of the human body hosts a unique microbial community, and the composition of microbiota is dependent on the host, age and the anatomical area, and it changes according to the characteristics of the microenvironment...
November 2016: Biomedical Reports
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