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https://www.readbyqxmd.com/read/29136816/simultaneous-determination-of-tert-butylhydroquinone-propyl-gallate-and-butylated-hydroxyanisole-by-flow-injection-analysis-with-multiple-pulse-amperometric-detection
#1
Dmytro Bavol, Anastasios Economou, Jiri Zima, Jiri Barek, Hana Dejmkova
We report the first amperometric method for the simultaneous determination of tert-butylhydroquinone (tBHQ), propyl gallate (PG), and butylated hydroxyanisole (BHA) using flow injection analysis coupled to multiple-pulse amperometry. A sequence of potential pulses was selected in order to detect tBHQ, PG, and BHA separately in a single injection step at a glassy carbon electrode without the need of a preliminary separation. A mixture of methanol and 0.040M Britton-Robinson buffer was used both as a carrier solution and for dilution of analyzed solutions before injection...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29126810/sensory-trick-splint-as-a-multimodal-therapy-for-oromandibular-dystonia
#2
Kazuya Yoshida
PURPOSE: Many patients with oromandibular dystonia, which is characterized by involuntary masticatory, lower facial, and/or tongue muscle contractions, experience relief of symptoms through sensory tricks such as eating chewing gum or candy. The aim of this study was to identify the factors influencing the effects of splints in patients with oromandibular dystonia. METHODS: Occlusal splints were inserted in 128 patients (89 women, 39 men) with oromandibular dystonia (102 with jaw closing dystonia, 20 with lingual dystonia, 5 with jaw deviation dystonia, 4 with jaw opening dystonia, 3 with lip dystonia, and 2 with jaw protrusion dystonia)...
November 7, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/29112713/st-product-characteristics-and-relationships-with-perceptions-and-behaviors-among-rural-adolescent-males-a-qualitative-study
#3
Elizabeth T Couch, Ellen F Darius, Margaret M Walsh, Benjamin W Chaffee
Although smoking declines in the United States, the prevalence of male adolescent smokeless tobacco (ST; moist snuff and chewing tobacco) use remains unchanged. ST product characteristics, such as flavoring, packaging, and branding, could influence adolescents' ST initiation and continued use. This qualitative study examines the potential role of product characteristics in shaping ST-related perceptions and behaviors among rural adolescent males. Semi-structured individual interviews were conducted at three California rural high schools...
November 3, 2017: Health Education Research
https://www.readbyqxmd.com/read/29091470/acute-ingestion-of-caffeinated-chewing-gum-improves-repeated-sprint-performance-of-team-sports-athletes-with-low-habitual-caffeine-consumption
#4
Mark Evans, Peter Tierney, Nicola Gray, Greg Hawe, Maria Macken, Brendan Egan
The effects of acute ingestion of caffeine on short-duration high intensity performance are equivocal, while studies of novel modes of delivery and the efficacy of low doses of caffeine are warranted. The aims of the present study were to investigate the effect of acute ingestion of caffeinated chewing gum on repeated sprint performance (RSP) in team sport athletes, and whether habitual caffeine consumption alters the ergogenic effect, if any, on RSP. Eighteen male team sports athletes undertook four RSP trials using a 40 m maximum shuttle run test (MST), which incorporates 10x40 m sprints with 30 s between the start of each sprint...
November 1, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29091330/multicentre-observational-study-of-gastrointestinal-recovery-after-elective-colorectal-surgery
#5
(no author information available yet)
INTRODUCTION: Postoperative ileus (POI) is characterised by delayed gastrointestinal recovery and is common after colorectal surgery. Numerous strategies to optimise POI have been proposed but its management remains unclear. This study aimed to characterise the duration and management of gastrointestinal recovery in patients undergoing elective colorectal surgery. METHODS: A snapshot, prospective, observational study was undertaken between November 2016 and January 2017 at 10 regional hospitals in the United Kingdom...
November 1, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/29081913/effect-of-maltitol-containing-chewing-gum-use-on-the-composition-of-dental-plaque-microbiota-in-subjects-with-active-dental-caries
#6
Erica M Prosdocimi, James O Kistler, Rebecca Moazzez, Clementine Thabuis, Caroline Perreau, William G Wade
Background: Sugar alcohols such as xylitol are incorporated in a number of oral hygiene products for their anti-cariogenic properties while chewing gum is known to be beneficial to oral hygiene. Objective: The aim of this study was to determine the composition of the dental plaque microbiota in patients with active caries before and after using a chewing gum supplemented with maltitol. Design : Forty subjects with active caries were randomly allocated to chew maltitol gum or gum base for two weeks. A healthy control group used gum base for two weeks...
2017: Journal of Oral Microbiology
https://www.readbyqxmd.com/read/29081672/prevalence-and-factors-associated-with-dental-erosion-in-individuals-aged-12-30-years-in-a-northeastern-brazilian-city
#7
Luanda Cristina O Luciano, Meire Coelho Ferreira, Marco Aurelio Paschoal
BACKGROUND/PURPOSE: Dental erosion in young individuals has increased significantly in recent years, due to changes in lifestyle. Thus, the present study investigated the prevalence and factors associated with dental erosion in individuals aged 12-30 years in the city of Imperatriz of Maranhão, Brazil. MATERIALS AND METHODS: A cross-sectional study was conducted on 335 individuals who answered a questionnaire consisting of variables related to dental erosion. Afterwards, the individuals were subjected to clinical examinations and the basic erosive wear examination index was used to classify their teeth according to the presence and severity of dental erosion...
2017: Clinical, Cosmetic and Investigational Dentistry
https://www.readbyqxmd.com/read/29077816/effect-of-gum-chewing-on-gastric-volume-and-emptying-a-prospective-randomized-crossover-study
#8
L Bouvet, E Loubradou, F-P Desgranges, D Chassard
Background: Current fasting guidelines allow oral intake of water up to 2 h before induction of anaesthesia. We assessed whether gum chewing affects gastric emptying of 250 ml water and residual gastric fluid volume measured 2 h after ingestion of water. Methods: This prospective randomized observer-blind crossover trial was performed on 20 healthy volunteers who attended two separate study sessions: Control and Chewing gum (chlorophyll flavour, with 2.1 g carbohydrate)...
November 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29065366/social-capital-and-oral-health-the-association-of-social-capital-with-edentulism-and-chewing-ability-in-the-rural-elderly
#9
Eun-Kyong Kim, Yun-Sook Jung, Kyung-Hee Kim, Ki-Rim Kim, Gi-Hong Kwon, Youn-Hee Choi, Hee-Kyung Lee
OBJECTIVE: The association between social capital and oral health had been reported in various ways, but still remains unclear. We investigated the association between the social capital of the elderly living in a rural region and their edentulism and chewing ability. METHODS: A total of 241 elderly aged≥70years living in a rural city of Korea participated in this cross-sectional study. Their social capital was surveyed by questionnaire assessing its network and trust dimensions...
October 10, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/29059464/fluoride-supplementation-with-tablets-drops-lozenges-or-chewing-gum-in-pregnant-women-for-preventing-dental-caries-in-the-primary-teeth-of-their-children
#10
REVIEW
Rena Takahashi, Erika Ota, Keika Hoshi, Toru Naito, Yoshihiro Toyoshima, Hidemichi Yuasa, Rintaro Mori, Eishu Nango
BACKGROUND: Dental caries (tooth decay) is one of the most common chronic childhood diseases. Caries prevalence in most industrialised countries has declined among children over the past few decades. The probable reasons for the decline are the widespread use of fluoride toothpaste, followed by artificial water fluoridation, oral health education and a slight decrease in sugar consumption overall. However, in regions without water fluoridation, fluoride supplementation for pregnant women may be an effective way to increase fluoride intake during pregnancy...
October 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29053219/gum-chewing-aids-bowel-function-return-and-analgesic-requirements-after-bowel-surgery-a-randomised-controlled-trial
#11
Christopher M Byrne, Assad Zahid, Jane M Young, Michael J Solomon, Christopher J Young
AIM: The aim was to compare the effectiveness of chewing sugar-free gum after bowel resection on bowel function and length of stay. METHOD: Randomised controlled trial of patients undergoing elective open or laparoscopic bowel surgery, allocated into two groups, a chewing gum group (CG) or a non-chewing gum group (NG). Primary outcomes were time to discharge (LOS), time to first flatus (TFF) and time to first bowel motion (TBM). Secondary outcomes were complication rates, pain and total morphine equivalent (TMEq) medication for seven days after the procedure...
October 20, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/29052468/evaluation-of-the-content-of-tio2-nanoparticles-in-the-coatings-of-chewing-gums
#12
William Dudefoi, Hélène Terrisse, Aurelian Florin Popa, Eric Gautron, Bernard Humbert, Marie-Hélène Ropers
Titanium dioxide is a metal oxide used as a white pigment in many food categories, including confectionery. Due to differences in the mass fraction of nanoparticles contained in TiO2, the estimated intakes of TiO2 nanoparticles differ by a factor of 10 in the literature. To resolve this problem, a better estimation of the mass of nanoparticles present in food products is needed. In this study, we focused our efforts on chewing gum, which is one of the food products contributing most to the intake of TiO2. The coatings of four kinds of chewing gum, where the presence of TiO2 was confirmed by Raman spectroscopy, were extracted in aqueous phases...
October 20, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/29051456/self-reported-symptoms-and-pesticide-use-among-farm-workers-in-arusha-northern-tanzania-a-cross-sectional-study
#13
Wilbert Bunini Manyilizu, Robbinson Hammerton Mdegela, Arnfinn Helleve, Eystein Skjerve, Rudovick Kazwala, Hezron Nonga, Mette Hellen Bjorge Muller, Elisabeth Lie, Jan Lyche
The objective of the study was to describe self-reported health symptoms, the use of personal protective gear and clothing and poor safety procedures when applying pesticides among farm workers. A total of 128 adult farm workers were interviewed using a structured questionnaire during the farming season. The commonly used pesticides included profenofos, mancozeb, chlorpyrifos, cypermethrin, deltamethrin, permethrin, lambda-cyhalothrin, endosulfan and carbosulfan. The majority (>90%) of farm workers used no personal protective clothing while handling pesticides...
September 27, 2017: Toxics
https://www.readbyqxmd.com/read/29043975/-preventive-and-therapeutic-advantages-of-sugar-free-chewing-gums-in-orthodontics-a-study-conducted-on-practitioners-and-patients
#14
Pauline Ferney, François Clauss, Damien Offner, Delphine Wagner
OBJECTIVE: The objective of this study is to assess the level of knowledge in a cohort of oral health professionals and patients about preventive and therapeutic actions of sugar-free chewing gums. MATERIALS AND METHODS: A forward-looking monocentric study of perception regarding the level of information about the effects of sugar-free chewing gums consumption was conducted on 135 young patients, from 11 to 17 years old, carriers of fixed orthodontic appliances and treated in the Department of Orthodontics in the Oral Medicine and Surgery Center of the University Hospitals of Strasbourg...
September 2017: L' Orthodontie Française
https://www.readbyqxmd.com/read/29029309/limited-efficacy-of-caffeine-and-recovery-costs-during-and-following-5-days-of-chronic-sleep-restriction-caffeine-and-sleep-restriction
#15
Tracy Jill Doty, Christine J So, Elizabeth M Bergman, Sara K Trach, Ruthie H Ratcliffe, Angela M Yarnell, Vincent F Capaldi, James E Moon, Thomas J Balkin, Phillip J Quartana
Objectives: To investigate the effects of caffeine on psychomotor vigilance and sleepiness during sleep restriction and following subsequent recovery sleep. Methods: Participants were N=48 healthy good sleepers. All participants underwent 5 nights of sleep satiation [time-in-bed (TIB): 10 hrs], followed by 5 nights of sleep restriction (TIB: 5 hrs), and 3 nights of recovery sleep (TIB: 8 hrs) in a sleep laboratory. Caffeine (200 mg) or placebo was administered in the form of chewing gum at 0800 and 1200 hrs each day during the sleep restriction phase...
October 5, 2017: Sleep
https://www.readbyqxmd.com/read/28968558/associations-between-oral-hygiene-habits-diet-tobacco-and-alcohol-and-risk-of-oral-cancer-a-case-control-study-from-india
#16
Bhawna Gupta, Freddie Bray, Narinder Kumar, Newell W Johnson
OBJECTIVE: This study examines the association between the incidence of oral cancer in India and oral hygiene habits, diet, chewing and smoking tobacco, and drinking alcohol. We also assessed the effects of oral hygiene habits with oral cancer risk among chewers versus never chewers. METHODS: A hospital-based case-control study was conducted in Pune, India, based on face-to-face interviews, anthropometry, and intra-oral examinations conducted for 187 oral cancer cases and 240 controls...
September 29, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28965675/oral-health-related-quality-of-life-and-masticatory-function-after-conventional-prosthetic-treatment-a-cohort-follow-up-study
#17
Teresa Palomares, Javier Montero, Eva M Rosel, Ramón Del-Castillo, Juan I Rosales
STATEMENT OF PROBLEM: The impact of conventional prosthetic treatment on both the objective and subjective assessments of mastication as well as on well-being is unclear. PURPOSE: The purpose of this clinical study was to compare the impact on oral health-related quality of life and masticatory function in participants treated with conventional dental prostheses. MATERIAL AND METHODS: A total of 72 patients requiring prosthetic rehabilitation were enrolled by referral from the Faculty of Dentistry at the University of Granada, Spain...
September 28, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28946331/a-rapid-method-for-simultaneous-quantification-of-13-sugars-and-sugar-alcohols-in-food-products-by-uplc-elsd
#18
Dong-Wan Koh, Jae-Woong Park, Jung-Hoon Lim, Myeong-Jai Yea, Dae-Young Bang
A novel, rapid, simultaneous analysis method for five sugars (fructose, glucose, sucrose, maltose, and lactose) and eight sugar alcohols (erythritol, xylitol, sorbitol, mannitol, inositol, maltitol, lactitol, and isomalt) was developed using UPLC-ELSD, without derivatization. The analysis conditions, including the gradient conditions, modifier concentration and column length, were optimized. Thirteen sugars and sugar alcohols were separated well and the resolution of their peaks was above 1.0. Their optimum analysis condition can be analyzed within 15min...
February 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28936178/a-comparison-of-oral-sensory-effects-of-three-trpa1-agonists-in-young-adult-smokers-and-non-smokers
#19
Eva Ø Hansen, Lars Arendt-Nielsen, Shellie A Boudreau
This study profiled intra-oral somatosensory and vasomotor responses to three different transient receptor potential (TRP) channels, subfamily A, member 1 (TRPA1) agonists (menthol, nicotine, and cinnamaldehyde) in smoking and non-smoking young adults. Healthy non-smokers (N = 30) and otherwise healthy smokers (N = 25) participated in a randomized, double-blinded, cross-over study consisting of three experimental sessions in which they received menthol (30 mg), nicotine (4 mg), or cinnamaldehyde (25 mg) chewing gum...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28914246/comparative-evaluation-of-the-effects-of-casein-phosphopeptide-amorphous-calcium-phosphate-cpp-acp-and-xylitol-containing-chewing-gum-on-salivary-flow-rate-ph-and-buffering-capacity-in-children-an-in-vivo-study
#20
Rahul J Hegde, Janhavi B Thakkar
AIM: This study aimed to compare and evaluate the changes in the salivary flow rate, pH, and buffering capacity before and after chewing casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) and xylitol-containing chewing gums in children. MATERIALS AND METHODS: Sixty children aged between 8 and 12 years were selected for the study. They were randomly divided into Group 1 (CPP-ACP chewing gum) and Group 2 (xylitol-containing chewing gum) comprising thirty children each...
October 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
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