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https://www.readbyqxmd.com/read/29332318/intraspecific-differences-in-plant-defense-induction-by-fall-armyworm-strains
#1
Flor E Acevedo, Michelle Peiffer, Swayamjit Ray, Robert Meagher, Dawn S Luthe, Gary W Felton
The underlying adaptive mechanisms by which insect strains are associated with specific plants are largely unknown. In this study, we investigated the role of herbivore-induced defenses in the host plant association of fall armyworm (Spodoptera frugiperda) strains. We tested the expression of herbivore-induced defense-related genes and the activity of plant-defensive proteins in maize and Bermuda grass upon feeding by fall armyworm strains. The rice strain caterpillars induced greater accumulation of proteinase inhibitors in maize than the corn strain caterpillars...
January 14, 2018: New Phytologist
https://www.readbyqxmd.com/read/29330941/hydrophobic-and-hydrophilic-effects-on-water-structuring-and-adhesion-in-denture-adhesives
#2
Simrone K Gill, Nima Roohpour, Yiran An, Julien E Gautrot, Paul D Topham, Brian J Tighe
Denture adhesives are designed to be moisture-sensitive through the inclusion of a blend of polymer salts with varying degrees of water-sensitivity. This enables the adhesive to mix with saliva in vivo and activate its high tack, through the formation of a mucilaginous layer. We report for the first time, the use of differential scanning calorimetry (DSC) to study a series of hydrophobic and hydrophilic polymeric systems in order to correlate water-structuring behavior with adhesion strength. Adhesive bonding of the more hydrophobic variants was higher than that of a commercial-based control and a more hydrophilic polymer system in both lap shear and tensile configurations...
January 13, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29330784/tacrolimus-concentration-in-saliva-of-kidney-transplant-recipients-factors-influencing-the-relationship-with-whole-blood-concentrations
#3
Mwlod Ghareeb, Reginald Y Gohh, Fatemeh Akhlaghi
OBJECTIVE: The objective of this study was to examine the association between tacrolimus concentration in oral fluids and in whole blood and to investigate the various factors that influence this relationship. PATIENTS AND METHODS: Forty-six adult kidney transplant recipients were included in the study. Study A (ten patients) included the collection of several paired oral fluid samples by passive drool over a 12-h post-dose period. Study B (36 patients) included the collection of oral fluids pre-dose and at 2 h after the tacrolimus dose under three conditions: un-stimulated, after stimulation with a tart candy, and after mouth rinsing...
January 12, 2018: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/29330771/inhibition-of-human%C3%A2-immunodeficiency-type-1-virus-hiv-1-life-cycle-by-different-egg-white-lysozymes
#4
Mandana Behbahani, Mokhtar Nosrati, Hassan Mohabatkar
Lysozyme is a relatively small enzyme with different biological activities, which is found in tears, saliva, egg white, and human milk. In the study, the anti-HIV-1 activity of lysozymes purified from quail, Meleagris, and hen egg white has been determined. For this end, a time-of-drug-addition assay was performed to identify the target of anti-HIV-1 agents and for determination of probable anti HIV-1 mechanism of the studied lysozyme, the binding affinity of the lysozymes to the human CD4 receptor was studied by molecular docking method...
January 13, 2018: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29330706/color-stability-of-different-composite-resins-after-polishing
#5
Stefano Ardu, O Duc, E Di Bella, I Krejci
The goals of the present study were to evaluate, in vitro, the staining of different composite resins submitted to different common beverages, and to compare the staining effect of each of these solutions. A total of 288 specimens were randomly divided into six groups and immersed for 4 weeks in five staining solutions represented by red wine, orange juice, coke, tea and coffee or in artificial saliva as a control group. When analyzed over a black background, mean ΔE00 values varied from 0.8 for Venus Diamond, Saremco Microhybrid and ELS in saliva and Estelite Posterior in coke to 37...
January 12, 2018: Odontology
https://www.readbyqxmd.com/read/29330612/analysis-of-the-stomatognathic-system-of-children-according-orthodontic-treatment-needs
#6
Simone Cecílio Hallak Regalo, Bárbara de Lima Lucas, Kranya Victoria Díaz-Serrano, Nicolly Parente Ribeiro Frota, Isabela Hallak Regalo, Mariângela Salles Pereira Nassar, Mariah Acioli Righetti, Lígia Franco Oliveira, Lígia Maria Napolitano Gonçalves, Selma Siéssere, Marcelo Palinkas
PURPOSE: The present study evaluated electromyographic activity (EMG), masticatory performance, and tongue strength in children without and with orthodontic treatment needs. PATIENTS AND METHODS: A total of 90 children were screened and divided into the following groups: Group I (no treatment needed; mean age: 8.00 ± 0.43 years; n = 26), Group II (few malocclusions, treatment needed; mean age: 8.89 ± 0.43 years; n = 28), and Group III (slight-to-borderline treatment needed; mean age: 8...
January 12, 2018: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/29329347/salivary-proteomics-of-healthy-dogs-an-in-depth-catalog
#7
Sheila M F Torres, Eva Furrow, Clarissa P Souza, Jennifer L Granick, Ebbing P de Jong, Timothy J Griffin, Xiong Wang
OBJECTIVE: To provide an in-depth catalog of the salivary proteome and endogenous peptidome of healthy dogs, evaluate proteins and peptides with antimicrobial properties, and compare the most common salivary proteins and peptides between different breed phylogeny groups. METHODS: 36 healthy dogs without evidence of periodontal disease representing four breed phylogeny groups, based upon single nucleotide polymorphism haplotypes (ancient, herding/sighthound, and two miscellaneous groups)...
2018: PloS One
https://www.readbyqxmd.com/read/29328950/ultrastructural-damage-in-streptococcus-mutans-incubated-with-saliva-and-histatin-5
#8
A M Fernández-Presas, Y Márquez Torres, R García González, A Reyes Torres, I Becker Fauser, H Rodríguez Barrera, B Ruíz García, R Toloza Medina, J Delgado Domínguez, J L Molinarí Soriano
OBJECTIVE: To study the ultrastructural alterations induced in Streptococcus mutans (ATCC 25175) incubated with saliva, saliva plus histatin 5 and histatin 5. METHODS: S. mutans incubated with saliva histatin 5 or a combination of both were morphologically analyzed and counted. The results were expressed as (CFU)ml-1. Ultrastructural damage was evaluated by transmission electron microscopy. Ultrastructural localization of histatin 5 was examined using immunogold labeling...
January 8, 2018: Archives of Oral Biology
https://www.readbyqxmd.com/read/29327448/the-saliva-proteome-of-dogs-variations-within-and-between-breeds-and-between-species
#9
Sabah Pasha, Taichi Inui, Iain Chapple, Stephen Harris, Lucy Holcombe, Melissa M Grant
Saliva is a complex multifunctional fluid that bathes the oral cavity to assist in soft and hard tissue maintenance, lubrication, buffering, defence against microbes and initiating digestion of foods. It has been extensively characterised in humans but its protein composition in dogs remains poorly characterised, yet could explain (patho) physiological differences between individuals, breeds and with humans. This pilot discovery study aimed to characterise canine saliva from two breeds, Labrador retrievers and Beagles, and to compare this with human saliva using quantitative mass spectrometry...
January 12, 2018: Proteomics
https://www.readbyqxmd.com/read/29326501/analysis-of-salivary-iga-amylase-lactoferrin-and-lysozyme-before-and-after-comprehensive-dental-treatment-in-children-a-prospective-study
#10
Akhilesh Sharma, Priya Subramaniam, Shebin Moiden
Objective: This study aimed to evaluate the levels of salivary IgA, amylase, lactoferrin, and lysozyme before and after comprehensive dental treatment in children with early childhood caries. Design: Thirty children aged 36-60 months, with a deft score ≥5, were selected for the study. Before dental treatment, paraffin-stimulated whole saliva was collected in a sterile graduated cup for a period of 5 min. The saliva samples were quantitatively analyzed for levels of IgA, amylase, lactoferrin, and lysozyme using enzyme-linked immunosorbent assay...
October 2017: Contemporary Clinical Dentistry
https://www.readbyqxmd.com/read/29325820/an-assessment-of-shedding-with-the-oral-rabies-virus-vaccine-strain-spbn-gasgas-in-target-and-non-target-species
#11
Ad Vos, Conrad Freuling, Steffen Ortmann, Antje Kretzschmar, Dietmar Mayer, Annette Schliephake, Thomas Müller
A safety requirement for live vaccines is investigating possible shedding in recipients since the presence of replication competent vaccine in secretions could result in direct and indirect horizontal transmission. This is especially relevant for oral rabies vaccine baits that are deliberately distributed into the environment. In the current study, survival of an oral rabies virus vaccine, SPBN GASGAS, was examined in excretions from different target and non-target species; red fox, raccoon dog, small Indian mongoose, raccoon, striped skunk, domestic dog, domestic cat and domestic pig...
January 8, 2018: Vaccine
https://www.readbyqxmd.com/read/29325019/deep-molecular-phenotypes-link-complex-disorders-and-physiological-insult-to-cpg-methylation
#12
Shaza B Zaghlool, Dennis O Mook-Kanamori, Sara Kader, Nisha Stephan, Anna Halama, Rudolf Engelke, Hina Sarwath, Eman K Al-Dous, Yasmin A Mohamoud, Werner Roemisch-Margl, Jerzy Adamski, Gabi Kastenmüller, Nele Friedrich, Alessia Visconti, Pei-Chien Tsai, Tim Spector, Jordana Bell, Mario Falchi, Annika Wahl, Melanie Waldenberger, Annette Peters, Christian Gieger, Maija Pezer, Gordan Lauc, Johannes Graumann, Joel A Malek, Karsten Suhre
Epigenetic regulation of cellular function provides a mechanism for rapid organismal adaptation to changes in health, lifestyle, and environment. Associations of cytosine-guanine di-nucleotide (CpG) methylation with clinical endpoints that overlap with metabolic phenotypes suggest a regulatory role for these CpG sites in the body's response to disease or environmental stress. We previously identified 20 CpG sites in an epigenome-wide association study (EWAS) with metabolomics that were also associated in recent EWASs with diabetes-, obesity-, and smoking-related endpoints...
January 8, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29324834/experimental-transmission-of-west-nile-virus-and-rift-valley-fever-virus-by-culex-pipiens-from-lebanon
#13
Renée Zakhia, Laurence Mousson, Marie Vazeille, Nabil Haddad, Anna-Bella Failloux
West Nile virus (WNV) and Rift Valley fever virus (RVFV) are two emerging arboviruses transmitted by Culex pipiens species that includes two biotypes: pipiens and molestus. In Lebanon, human cases caused by WNV and RVFV have never been reported. However, the introduction of these viruses in the country is likely to occur through the migratory birds and animal trades. In this study, we evaluated the ability of Cx. pipiens, a predominant mosquito species in urban and rural regions in Lebanon, to transmit WNV and RVFV...
January 11, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29323776/remineralization-of-natural-human-carious-dentin-lesions-with-an-experimental-whisker-reinforced-atraumatic-restorative-treatment-composite
#14
Chao Zhang, Stephen D Campbell, Sabine H Dickens, Bin Yang
PURPOSE: To evaluate the remineralization of natural human dentin caries with an experimental whisker-reinforced Atraumatic Restorative Treatment (ART) composite. MATERIALS AND METHODS: Teeth with moderate active dentin caries were prepared with caries-disclosing dye and hand instruments, restored with ART or resin-modified glass ionomer cement (RM-GIC), and then wet sliced into 120-μm sections with 15 sections in each group. After taking transverse microradiographs and implementing digital image analysis to determine the "mineral-loss-before," each section was incubated in artificial saliva solution (pH = 7...
January 11, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29323056/role-of-salivary-biomarkers-in-early-detection-of-oral-squamous-cell-carcinoma
#15
Nidhi Awasthi
INTRODUCTION: Oral cancer is prevalent worldwide and is a common cause of morbidity and mortality. Despite advances in treatment, the survival of patients with oral cancer has not significantly improved over the past several decades owing to late detection and treatment failures. The present study was undertaken with an objective to explore the role of salivary CYFRA 21-1, CA 19-9, lactate dehydrogenase (LDH), total proteins, and amylase as biochemical markers of oral squamous cell carcinoma (OSCC) and premalignant lesions (PML)...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29321998/effectiveness-of-two-different-herbal-toothpaste-formulations-in-the-reduction-of-plaque-and-gingival-inflammation-in-patients-with-established-gingivitis-a-randomized-controlled-trial
#16
Rajesh Hosadurga, Vinita Ashutosh Boloor, Sudharshan N Rao, N MeghRani
Background: Plant based toothpastes have received great attention in reducing gingival inflammation. Studies show contrasting results regarding the effectiveness of these toothpastes. In the present study, the effectiveness of two herbal tooth paste formulations in the reduction of plaque and gingival inflammation was assessed. Nicotine content in the toothpastes was assessed using GCMS. Material and methods: 50 patients with established gingivitis were included in the study...
January 2018: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29321959/daily-voluntary-exercise-enhances-pilocarpine-induced-saliva-secretion-and-aquaporin-1-expression-in-rat-submandibular-glands
#17
Kentaro Matsuzaki, Naotoshi Sugimoto, Masanori Katakura, Eri Sumiyoshi, Toshiko Hara, Michio Hashimoto, Osamu Shido
Saliva-a water-based fluid containing electrolytes, immunoglobulins, and enzymes-has many functions, including the protection and hydration of mucosal structures within the oral cavity and the initiation of digestion. Aquaporins (AQPs) are proteins that act as water channels through membranes. We have previously reported upregulation of the expression levels of AQP 1 and 5 in the submandibular glands (SMGs) in heat-acclimated rats. In this study, we investigated pilocarpine-induced saliva secretion and AQP expression in rats after voluntary exercise...
January 2018: FEBS Open Bio
https://www.readbyqxmd.com/read/29319192/characteristics-of-patients-with-acute-peripheral-facial-palsy-showing-varicella-zoster-virus-dna-in-saliva
#18
Dong Sik Chang, Jun Lee, Sun Ae Shin, Ho Yun Lee
Infection caused by Varicella zoster virus (VZV) is a common etiology of acute peripheral facial palsy (APFP). We aimed to assess the clinical significance of detecting VZV DNA from the saliva of patients with APFP. Saliva collected from thirty-six patients with unilateral APFP at initial visit was analyzed to detect VZV DNA by polymerase chain reaction. The House-Brackmann (HB) scale was used to evaluate FP severity on admission day, at week 2, and at weeks 10-12 after start of treatment. Among the 28 patients without rash, VZV DNA was detected in 3 patients (10...
January 10, 2018: Journal of Medical Virology
https://www.readbyqxmd.com/read/29317682/piperonylic-acid-stimulates-keratinocyte-growth-and-survival-by-activating-epidermal-growth-factor-receptor-egfr
#19
Dohyun Lee, Jinsun Lim, Kyung-Chul Woo, Kyong-Tai Kim
Epidermal growth factor (EGF) stimulates cell growth, proliferation, and survival. The biological benefits of EGF have been utilized in medical uses for improving wound healing as well as in today's skin cosmetics. EGF has been found in urine, saliva, milk, and plasma, but its efficient isolation remains a difficult task. With technical advances, recombinant protein purification technique has been used for EGF production. However, the recombinant EGF is still expensive and keeping it with stable activity is difficult to be used widely...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29317137/detection-of-oral-hpv-infection-comparison-of-two-different-specimen-collection-methods-and-two-hpv-detection-methods
#20
Marjorie M A de Souza, Gunter Hartel, David C Whiteman, Annika Antonsson
Very little is known about the natural history of oral HPV infection. Several different methods exist to collect oral specimens and detect HPV, but their respective performance characteristics are unknown. We compared two different methods for oral specimen collection (oral saline rinse and commercial saliva kit) from 96 individuals and then analyzed the samples for HPV by two different PCR detection methods (single GP5+/6+ PCR and nested MY09/11 and GP5+/6+ PCR). For the oral rinse samples, the oral HPV prevalence was 10...
December 13, 2017: Diagnostic Microbiology and Infectious Disease
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