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https://www.readbyqxmd.com/read/29350257/a-new-approach-for-the-extraction-of-tetracyclines-from-soil-matrices-application-of-the-microwave-extraction-technique
#1
Paulina Łukaszewicz, Anna Białk-Bielińska, Joanna Dołżonek, Jolanta Kumirska, Magda Caban, Piotr Stepnowski
The widespread use of tetracyclines (TCs) in animal husbandry is associated with their constant penetration into the environment and the threat they might pose to living organisms. While the literature data on the analysis of these substances in such matrices as food, tissues, or wastewater are quite extensive, there are still only a few methods presented for the determination of these compounds in soil samples. Moreover, among the literature methods for the extraction of TCs from soil samples, microwave-assisted solvent extraction (MAE) was used only once and in combination with liquid chromatography with spectrophotometric detection (LC-UV)...
January 19, 2018: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29350112/a-comparison-of-hiv-risk-behaviors-between-young-black-cisgender-men-who-have-sex-with-men-and-young-black-transgender-women-who-have-sex-with-men
#2
Richard A Crosby, Laura F Salazar, Brandon Hill, Leandro Mena
This study compared sexually transmitted infection (STI)-associated risks between young Black cisgender men who have sex with men (YBMSM) and young Black transwomen who have sex with men (YBTWSM). Comparisons pertained to: (1) prevalence of infections; (2) sexual risk; (3) partner-related risks; and (4) socioeconomic marginalization. YBMSM (n = 577) and YBTWSM (n = 32) were recruited from an STI clinic in the USA. Volunteers completed a computer-assisted self-interview and medical records were abstracted for STI/HIV information...
January 1, 2018: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/29346343/asthma-mortality-among-persons-aged-15-64-years-by-industry-and-occupation-united-states-1999-2016
#3
Opal Patel, Girija Syamlal, John Wood, Katelynn E Dodd, Jacek M Mazurek
In 2015, an estimated 18.4 million U.S. adults had current asthma, and 3,396 adult asthma deaths were reported (1). An estimated 11%-21% of asthma deaths might be attributable to occupational exposures (2). To describe asthma mortality among persons aged 15-64 years,* CDC analyzed multiple cause-of-death data† for 1999-2016 and industry and occupation information collected from 26 states§ for the years 1999, 2003, 2004, and 2007-2012. Proportionate mortality ratios (PMRs)¶ for asthma among persons aged 15-64 years were calculated...
January 19, 2018: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/29344565/a-novel-method-of-endoscopic-assisted-esophageal-clearance-in-advanced-achalasia
#4
Shinwa Tanaka, Fumiaki Kawara, Takashi Toyonaga, Robert Bechara, Namiko Hoshi, Hirofumi Abe, Yoshiko Ohara, Tsukasa Ishida, Yoshinori Morita, Eiji Umegaki
Background and study aims : In order to perform peroral endoscopic myotomy (POEM) safely, retained liquid and food debris must be removed before the procedure is started. We developed a novel technique using a super-slim gastroscope, and a gastric tube to remove retained food debris in achalasia patients. In this study, the safety and efficacy of this novel technique were investigated. Patients and methods : Eleven patients with achalasia were enrolled in this study and underwent this novel method for esophageal clearance...
January 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29342884/effect-of-the-extraction-process-on-the-biological-activity-of-lyophilized-apricot-extracts-recovered-from-apricot-pomace
#5
Dina Cheaib, Nada El Darra, Hiba N Rajha, Iman El-Ghazzawi, Richard G Maroun, Nicolas Louka
The preservation of polyphenols in fruits by lyophilization has gained great interest in the recent decades. The present study aims to assess the impact of the pre-treatment extraction methods heat-assisted extraction (HAE) and infrared (IR) on lyophilized apricot pomace extracts. Then to test the conservation of polyphenols quantities as well as their bioactivities (antiradical and antibacterial) in lyophilized extract. An aqueous extract was obtained through either heat-assisted extraction or infrared pre-treatments then lyophilized to obtain a dried form...
January 14, 2018: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29342506/effects-of-a-dash-diet-intervention-on-serum-uric-acid-in-african-americans-with-hypertension
#6
Stephen P Juraschek, Karen White, Olive Tang, Hsin-Chieh Yeh, Lisa A Cooper, Edgar R Miller
OBJECTIVE: To examine whether partially replacing one's diet with DASH-related foods in the home environment lowered uric acid (SUA). METHODS: We conducted an ancillary study in a randomized trial of African Americans with controlled hypertension from an urban clinic. Participants were assigned to either a control or intervention (DASH-Plus) group. The control group received a DASH brochure and a debit account of $30/week to purchase foods. DASH-Plus participants received coach-directed dietary advice, assistance with purchasing DASH-related foods ($30/week), and home food delivery via a community supermarket...
January 17, 2018: Arthritis Care & Research
https://www.readbyqxmd.com/read/29341609/probing-and-quantifying-the-food-borne-pathogens-and-toxins-from-in-vitro-to-in-vivo
#7
Jing-Min Liu, Zhi-Hao Wang, Hui Ma, Shuo Wang
Development of real-time and in situ analytical methods for determination of food-borne pathogens and toxins ingested into human body would be a promising research direction in the food safety area. The present review starts with summarization of the up-to-date progress of the nanomaterial-assisted in vitro detection methods for pathogens and toxins, and finally focused on application of animal bioimaging to in vivo study, including prospective strategies for in vivo quantification of target pathogens or toxins and in vivo investigation of their behaviors inside the living body, with the assistance of real-time and non-invasive optical bioimaging...
January 17, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29340883/associations-of-coffee-consumption-and-caffeine-intake-with-mammographic-breast-density
#8
Lusine Yaghjyan, Graham Colditz, Bernard Rosner, Aleksandra Gasparova, Rulla M Tamimi
PURPOSE: Previous studies suggest that coffee and caffeine intake may be associated with reduced breast cancer risk. We investigated the association of coffee and caffeine intake with mammographic breast density by woman's menopausal status and, in postmenopausal women, by hormone therapy (HT). METHODS: This study included 4130 cancer-free women within the Nurses' Health Study and Nurses' Health Study II cohorts. Percent breast density (PD) was measured from digitized film mammograms using a computer-assisted thresholding technique and square root-transformed for the analysis...
January 17, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29340658/cuticle-and-pore-plug-properties-in-the-table-egg
#9
G Kulshreshtha, A Rodriguez-Navarro, E Sanchez-Rodriguez, T Diep, M T Hincke
Food safety of table eggs is vital since many pathogens can contaminate the unfertilized egg, leading to increased risk of foodborne illness for consumers. The eggshell cuticle is the first line of defense to restrict the entry of egg-associated pathogens, such as Salmonella Enteritidis. The thickness and completeness of coverage of the cuticle layer are heritable traits that are strongly associated with egg resistance to bacterial penetration. The present study characterizes the chemical composition of the eggshell cuticle and structure of pore plugs from table eggs...
January 11, 2018: Poultry Science
https://www.readbyqxmd.com/read/29337704/the-what-when-and-how-in-performing-and-interpreting-microbiological-diagnostic-tests-in-skin-and-soft-tissue-infections
#10
Carolina Navarro-San Francisco, Patricia Ruiz-Garbajosa, Rafael Cantón
PURPOSE OF REVIEW: To summarize and classify the most recent and relevant microbiological studies for each type of skin and soft tissue infection (SSTI). RECENT FINDINGS: Following Infectious Diseases Society of America and Food and Drug Administration classifications of SSTIs, we differentiate between two large groups, the superficial or uncomplicated infections and the complicated infections with deep involvement. It is not usually necessary to obtain microbiological samples in uncomplicated infections, except in cases of recurrences or for epidemiological control purposes...
January 11, 2018: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/29337618/vegetative-valvular-endocarditis-and-hepatitis-associated-with-helcococcus-ovis-in-a-7-year-old-white-leghorn-rooster
#11
Manuela Crispo, Simone Stoute, Thaiza Savaris, Arthur Bickford, Tiffany Santoro, C Gabriel Sentíes-Cué
Helcococcus ovis is a slow-growing, pyridoxal-dependent, Gram-positive coccus belonging to the Peptostreptococcaceae family. Bacteria belonging to the genus Helcococcus are considered normal inhabitants of keratinized epithelium in humans; however, several reports support their role as pathogens in humans and several animal species. This case report describes the identification of H. ovis in a white leghorn rooster with valvular vegetative endocarditis and hepatitis. In February 2017 one dead, 7-yr-old, white leghorn rooster was submitted to the California Animal Health and Food Safety Turlock laboratory for diagnostic testing...
December 2017: Avian Diseases
https://www.readbyqxmd.com/read/29337367/correlation-of-simulation-finite-element-analysis-to-the-separation-of-intrinsically-magnetic-spores-and-red-blood-cells-using-a-microfluidic-magnetic-deposition-system
#12
Jianxin Sun, L Moore, Wei Xue, James Kim, Maciej Zborowski, Jeffrey J Chalmers
Magnetic separation of cells has been, and continues to be, widely used in a variety of applications, ranging from healthcare diagnostics to detection of food contamination. Typical, these technologies require cells labeled with antibody magnetic particle conjugate and a high magnetic energy gradient created in the flow containing the labeled cells (i.e. a column packed with magnetically inducible material), or dense packing of magnetic particles next to the flow cell. Such designs while creating high magnetic energy gradients, are not amenable to easy, highly detailed, mathematic characterization...
January 16, 2018: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/29337366/replenishment-of-docosahexaenoic-acid-dha-in-dietary-n-3-deficient-mice-fed-dha-in-triglycerides-or-phosphatidylcholines-after-weaning
#13
Dan-Dan Wang, Fang Wu, Min Wen, Lin Ding, Lei Du, Chang-Hu Xue, Jie Xu, Yu-Ming Wang
Previous studies have shown that DHA in triglyceride (TG) and phosphatidylcholine (PC) forms are different in their bioavailability. The aim of this study was to investigate the comparative effects of DHA-TG and DHA-PC on tissue DHA accretion in dietary n-3 polyunsaturated fatty acid deficient (n-3 Def) mice. The mice were fed with n-3 Def diet containing DHA-TG or DHA-PC (5 g/kg diet) for 2, 4, 7, or 14 d after weaning, respectively. The DHA levels in the cortex, liver, testis, and erythrocytes were analyzed by gas chromatography...
January 16, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29336079/the-low-fodmap-diet-in-the-management-of-irritable-bowel-syndrome-an-evidence-based-review-of-fodmap-restriction-reintroduction-and-personalisation-in-clinical-practice
#14
REVIEW
K Whelan, L D Martin, H M Staudacher, M C E Lomer
Dietary restriction of fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAPs) is effective in the management of functional gastrointestinal symptoms that occur in irritable bowel syndrome (IBS). Numerous reviews have been published regarding the evidence for their restriction in the low FODMAP diet; however, few reviews discuss the implementation of the low FODMAP diet in practice. The aim of this review is to provide practical guidance on patient assessment and the implementation and monitoring of the low FODMAP diet...
January 15, 2018: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
https://www.readbyqxmd.com/read/29335878/antioxidant-compounds-recovery-from-ju%C3%A3-ara-residue-by-thermal-assisted-extraction
#15
Leilson O Ribeiro, Ricardo N C Pereira, Renata V Tonon, Lourdes Maria C Cabral, Manuela Cristina P A Santiago, António A Vicente, José António C Teixeira, Virgínia M Matta, Suely P Freitas
This study aimed to recover bioactive compounds by solid-liquid extraction from the agro-industrial residue obtained during juçara fruits processing into pulp. A preliminary study using different solvents (methanol, ethanol and water) indicated ethanol in aqueous solution as the best solvent for antioxidants recovery. Then, a Box-Behnken design was applied considering as independent variables the solvent composition (30-70% ethanol in water), temperature (30-70 °C) and time (30-60 min), in order to evaluate the effects of these factors on antioxidant activity in juçara extract...
January 15, 2018: Plant Foods for Human Nutrition
https://www.readbyqxmd.com/read/29334935/adoption-and-diffusion-of-zoning-bylaws-banning-fast-food-drive-through-services-across-canadian-municipalities
#16
Candace I J Nykiforuk, Elizabeth J Campbell, Soultana Macridis, Daniel McKennitt, Kayla Atkey, Kim D Raine
BACKGROUND: Healthy public policy is an important tool for creating environments that support human health and wellbeing. At the local level, municipal policies, such as zoning bylaws, provide an opportunity for governments to regulate building location and the type of services offered. Across North America, there has been a recent proliferation of municipal bylaws banning fast food drive-through services. Research on the utilization of this policy strategy, including bylaw adopters and adopter characteristics, is limited within the Canadian context...
January 15, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29332787/rapid-and-interference-free-analysis-of-nine-b-group-vitamins-in-energy-drinks-using-trilinear-component-modeling-of-liquid-chromatography-mass-spectrometry-data
#17
Yong Hu, Hai-Long Wu, Xiao-Li Yin, Hui-Wen Gu, Rong Xiao, Li-Xia Xie, Zhi Liu, Huan Fang, Li Wang, Ru-Qin Yu
The aim of the present work was to develop a rapid and interference-free method based on liquid chromatography-mass spectrometry (LC-MS) for the simultaneous determination of nine B-group vitamins in various energy drinks. A smart and green strategy that modeled the three-way data array of LC-MS with second-order calibration methods based on alternating trilinear decomposition (ATLD) and alternating penalty trilinear decomposition (APTLD) algorithms was developed. By virtue of "mathematical separation" and "second-order advantage", the proposed strategy successfully solved the co-eluted peaks and unknown interferents in LC-MS analysis with the elution time less than 4...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29331518/microwave-assisted-ionic-liquid-mediated-rapid-catalytic-conversion-of-non-edible-lignocellulosic-sunn-hemp-fibres-to-biofuels
#18
Souvik Kumar Paul, Saikat Chakraborty
Sunn hemp fibre - a cellulose-rich crystalline non-food energy crop, containing 75.6% cellulose, 10.05% hemicellulose, 10.32% lignin, with high crystallinity (80.17%) and degree of polymerization (650) - is identified as a new non-food substrate for lignocellulosic biofuel production. Microwave irradiation is employed to rapidly rupture the cellulose's glycosidic bonds and enhance glucose yield to 78.7% at 160 °C in only 46 min. The reactants - long-chain cellulose, ionic liquid, transition metal catalyst, and water - form a polar supramolecular complex that rotates under the microwave's alternating polarity and rapidly dissipates the electromagnetic energy through molecular collisions, thus accelerating glycosidic bond breakage...
January 3, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29331066/strong-evidence-for-changing-fish-reproductive-phenology-under-climate-warming-on-the-tibetan-plateau
#19
Juan Tao, Dekui He, Mark J Kennard, Chengzhi Ding, Stuart E Bunn, Chunlong Liu, Yintao Jia, Rongxiao Che, Yifeng Chen
Phenological responses to climate change have been widely observed and have profound and lasting effects on ecosystems and biodiversity. However, compared to terrestrial ecosystems, the long-term effects of climate change on species' phenology are poorly understood in aquatic ecosystems. Understanding the long-term changes in fish reproductive phenology is essential for predicting population dynamics and for informing management strategies, but is currently hampered by the requirement for intensive field observations and larval identification...
January 13, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29329842/optimization-of-microwave-assisted-extraction-of-morus-nigra-l-fruits-maximizing-tyrosinase-inhibitory-activity-with-isolation-of-bioactive-constituents
#20
Halil Koyu, Aslihan Kazan, Serdar Demir, Mehmet Zeki Haznedaroglu, Ozlem Yesil-Celiktas
Morus nigra L. is a beneficial food due to rich phenolic components. While aiming higher yields for bioactive constituents, reduction in terms of raw material, solvent, time and energy gained more importance to provide a sustainable life for human and nature. Microwave assisted extraction (MAE) of Morus nigra fruits was optimized in order to elicit process parameters maximizing bioactive metabolites and tyrosinase inhibitory activity. Spectrophotometry and UPLC-DAD-ESI-MS/MS systems were utilized for quantitative analysis of total phenol, flavonoid and anthocyanin contents...
May 15, 2018: Food Chemistry
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