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https://www.readbyqxmd.com/read/28636751/using-experimentation-to-understand-the-10-year-snowshoe-hare-cycle-in-the-boreal-forest-of-north-america
#1
C J Krebs, R Boonstra, S Boutin
Population cycles have long fascinated ecologists from the time of Charles Elton in the 1920s. The discovery of large population fluctuations in undisturbed ecosystems challenged the idea that pristine nature was in a state of balance. The 10-year cycle of snowshoe hares (Lepus americanus Erxleben) across the boreal forests of Canada and Alaska is a classic cycle, recognized by fur traders for more than 300 years. Since the 1930s ecologists have investigated the mechanisms that might cause these cycles. Proposed causal mechanisms have varied from sunspots to food supplies, parasites, diseases, predation, and social behaviour...
June 21, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28636191/-fast-track-development-and-approval-process-for-heart-failure-therapeutics
#2
L Papadimitriou, J Butler
Heart failure (HF) is a global epidemic, with a high mortality and morbidity burden. In such diseases, earlier access to lifesaving therapeutic regimens is imperative, and could be accomplished by improving the drug development and approval process, without jeopardizing patient safety. The US Food and Drug Administration (FDA) has already established mechanisms facilitating the latter, but further guidance to enhance and expedite the process holds promise to further improve patient outcomes.
June 21, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28634777/healthy-and-unhealthy-food-prices-across-neighborhoods-and-their-association-with-neighborhood-socioeconomic-status-and-proportion-black-hispanic
#3
David M Kern, Amy H Auchincloss, Lucy F Robinson, Mark F Stehr, Genevieve Pham-Kanter
This paper evaluates variation in food prices within and between neighborhoods to improve our understanding of access to healthy foods in urbanized areas and potential economic incentives and barriers to consuming a higher-quality diet. Prices of a selection of healthier foods (dairy, fruit juice, and frozen vegetables) and unhealthy foods (soda, sweets, and salty snacks) were obtained from 1953 supermarkets across the USA during 2009-2012 and were linked to census block group socio-demographics. Analyses evaluated associations between neighborhood SES and proportion Black/Hispanic and the prices of healthier and unhealthy foods, and the relative price of healthier foods compared with unhealthy foods (healthy-to-unhealthy price ratio)...
June 20, 2017: Journal of Urban Health: Bulletin of the New York Academy of Medicine
https://www.readbyqxmd.com/read/28634248/suburban-families-experience-with-food-insecurity-screening-in-primary-care-practices
#4
Deepak Palakshappa, Stephanie Doupnik, Aditi Vasan, Saba Khan, Leah Seifu, Chris Feudtner, Alexander G Fiks
BACKGROUND: Food insecurity (FI) remains a major public health problem. With the rise in suburban poverty, a greater understanding of parents' experiences of FI in suburban settings is needed to effectively screen and address FI in suburban practices. METHODS: We conducted 23 semistructured interviews with parents of children <4 years of age who presented for well-child care in 6 suburban pediatric practices and screened positive for FI. In the interviews, we elicited parents' perceptions of screening for FI, how FI impacted the family, and recommendations for how practices could more effectively address FI...
June 20, 2017: Pediatrics
https://www.readbyqxmd.com/read/28633705/household-food-insecurity-is-associated-with-low-interferon-gamma-levels-in-pregnant-indian-women
#5
A Vaidya, R Bhosale, P Sambarey, N Suryavanshi, S Young, V Mave, S Kanade, V Kulkarni, P Deshpande, U Balasubramanian, J Elf, N Gupte, A Gupta, J S Mathad
SETTING: Over 20% of tuberculosis (TB) cases during pregnancy occur in India. OBJECTIVE: To determine the association between household food insecurity and interferon-gamma (IFN-γ) levels in pregnancy. DESIGN: Pregnant women in India were administered the Household Food Insecurity Access Scale (HFIAS) questionnaire and underwent an IFN-γ release assay. Logistic regression was used to identify factors associated with food insecurity. RESULTS: Of 538 women, 60 (11%) had household food insecurity, 47 (78%) of which were moderate or severe food insecure...
July 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28632953/updates-to-the-us-food-and-drug-administration-regulations-for-mifepristone-implications-for-clinical-practice-and-access-to-abortion
#6
Katherine E Simmonds, Margaret W Beal, Meghan K Eagen-Torkko
This article provides information on recent changes in the US Food and Drug Administration (FDA) labeling and safety regulations for mifepristone (Mifeprex). The revised label now permits midwives, advanced practice nurses, and physician assistants to order and prescribe mifepristone, eliminating the requirement for physician supervision. The updated label also extends eligibility for use from 49 to 70 days' gestation and decreases the number of required visits from 3 to 2. The recommended dose of mifepristone has been reduced, and the dosage, timing, and route of administration for misoprostol have also been changed to reflect current research...
May 2017: Journal of Midwifery & Women's Health
https://www.readbyqxmd.com/read/28632162/beyond-food-access-the-impact-of-parent-home-and-neighborhood-level-factors-on-children-s-diets
#7
Lauren Futrell Dunaway, Thomas Carton, Ping Ma, Adrienne R Mundorf, Kelsey Keel, Katherine P Theall
Despite the growth in empirical research on neighborhood environmental characteristics and their influence on children's diets, physical activity, and obesity, much remains to be learned, as few have examined the relationship between neighborhood food availability on dietary behavior in children, specifically. This analysis utilized data from a community-based, cross-sectional sample of children (n = 199) that was collected in New Orleans, Louisiana, in 2010. This dataset was linked to food environment data to assess the impact of neighborhood food access as well as household and parent factors on children's diets...
June 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28630694/physical-activity-level-of-female-and-male-adult-cats-before-and-after-running-wheel-habituation
#8
Katelyn B Detweiler, Samona Rawal, Kelly S Swanson, Maria R C de Godoy
The objective of the present study was to evaluate whether access to a running wheel increases voluntary physical activity in adult female and male domestic cats. Eight neutered domestic shorthair male cats (mean age 8·6 (sd 0·05) years) and eleven intact domestic shorthair female cats (mean age 3·3 (sd 0·14) years) were group housed for 22 h daily and individually housed during the feeding period. Voluntary physical activity was measured using accelerometers. Experimental design consisted of 1 week of baseline physical activity measurement, followed by 3 weeks of wheel habituation, and 1 week of physical activity measurement post-wheel habituation...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28630036/understanding-health-information-seeking-on-the-internet-among-sexual-minority-people-cross-sectional-analysis-from-the-health-information-national-trends-survey
#9
Jennifer M Jabson, Joanne G Patterson, Charles Kamen
BACKGROUND: Individuals who face barriers to health care are more likely to access the Internet to seek health information. Pervasive stigma and heterosexism in the health care setting are barriers to health care for sexual minority people (SMP, ie, lesbian, gay, and bisexual people); therefore, SMP may be more likely to use the Internet as a source of health information compared to heterosexual people. OBJECTIVE: Currently, there is a dearth of published empirical evidence concerning health information seeking on the Internet among SMP; the current project addresses this gap...
June 19, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28629703/association-of-food-access-and-neighbor-relationships-with-diet-and-underweight-among-community-dwelling-older-japanese
#10
Hideko Nakamura, Mieko Nakamura, Eisaku Okada, Toshiyuki Ojima, Katsunori Kondo
BACKGROUND: Food access is important for maintaining dietary variety, which predicts underweight. The aim of this study was to examine the association of food access and neighbor relationships with eating and underweight. METHODS: We analyzed cross-sectional data from 102,869 Japanese individuals aged 65 years or older. The perceived availability of food was assessed using the presence or absence of food stores within 1 km of the home. Level of relationships with neighbors was also assessed...
June 16, 2017: Journal of Epidemiology
https://www.readbyqxmd.com/read/28628238/a-genome-wide-association-study-of-23-agronomic-traits-in-chinese-wheat-landraces
#11
Yaxi Liu, Yu Lin, Shang Gao, Zhanyi Li, Jian Ma, Mei Deng, Guoyue Chen, Yuming Wei, Youliang Zheng
Uncovering the genetic basis of agronomic traits in wheat landraces is important for ensuring global food security via the development of improved varieties. Here, 723 wheat landraces from 10 Chinese agro-ecological zones were evaluated for 23 agronomic traits in six environments. All accessions could be clustered into five subgroups based on phenotypic data via discriminant function analysis, which was highly consistent with genotypic classification. A genome-wide association study was conducted for these traits using 52,303 DArT-seq markers to identify marker-trait associations and candidate genes...
June 19, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28627289/snap-n-send-a-valid-and-reliable-method-for-assessing-the-energy-intake-of-elite-adolescent-athletes
#12
Nessan Costello, Kevin Deighton, Joshua Dyson, Jim Mckenna, Ben Jones
To ensure that elite adolescent athletes meet their unique training, growth and maturation demands, it is imperative to have access to valid measures of energy intake. Contemporary methods demand close attention-to-detail, meaning that athletes often do not fully adhere to real-time protocols. This study represents the first investigation of a real-time dietary assessment designed using a comprehensive behaviour change framework (COM-B). In a crossover design, 12 elite adolescent male rugby players recorded their energy intake via an estimated food diary (est-FD) and photography-based mobile assessment ('Snap-n-Send'), combined with a 24-h dietary recall interview...
June 17, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28626249/knowledge-of-free-delivery-policy-among-women-who-delivered-at-health-facilities-in-oudomxay-province-lao-pdr
#13
Tengbriacheu Chankham, Eiko Yamamoto, Joshua A Reyer, Rahman Arafat, Innoukham Khonemany, Sayamoungkhoun Panome, Dalavong Hongkham, Phommalaysith Bounfeng, Xeuthvongsa Anonh, Nobuyuki Hamajima
To promote the utilization of maternal health services and reduce financial barriers, the Laos government introduced its "Free Maternal Health Services Policy" in 2012. This policy provides free maternal health services for pregnant women, which includes costs related to treatment, transportation, food fees, referral and an incentive for four antenatal care appointments. This study aims to ascertain the knowledge level regarding this policy among Lao women and determine their level of satisfaction with the maternal service provision...
February 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/28625662/experiences-and-perceptions-of-adults-accessing-publicly-available-nutrition-behavior-change-mobile-apps-for-weight-management
#14
Jessica R L Lieffers, Jose F Arocha, Kelly Grindrod, Rhona M Hanning
BACKGROUND: Nutrition mobile apps have become accessible and popular weight-management tools available to the general public. To date, much of the research has focused on quantitative outcomes with these tools (eg, weight loss); little is known about user experiences and perceptions of these tools when used outside of a research trial environment. OBJECTIVE: Our aim was to understand the experiences and perceptions of adult volunteers who have used publicly available mobile apps to support nutrition behavior change for weight management...
June 15, 2017: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/28625550/maternal-exposure-to-western-diet-affects-adult-body-composition-and-voluntary-wheel-running-in-a-genotype-specific-manner-in-mice
#15
Layla Hiramatsu, Jarren Kay, Zoe Thompson, Jennifer Singleton, Gerald Claghorn, Ralph Lacerda de Albuquerque, Brittany Ho, Brett Ho, Gabriela Sanchez, Theodore Garland
Some human diseases, including obesity, Type II diabetes, and numerous cancers, are thought to be influenced by environments experienced in early life, including in utero. Maternal diet during the perinatal period may be especially important for adult offspring energy balance, potentially affecting both body composition and physical activity. This effect may be mediated by the genetic background of individuals, including, for example, potential "protective" mechanisms for individuals with inherently high levels of physical activity or high basal metabolic rates...
June 15, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28624620/agbr-nanoparticles-3d-nitrogen-doped-graphene-hydrogel-for-fabricating-all-solid-state-luminol-electrochemiluminescence-escherichia-coli-aptasensors
#16
Nan Hao, Xuan Zhang, Zhou Zhou, Rong Hua, Ying Zhang, Qian Liu, Jing Qian, Henan Li, Kun Wang
It is necessary to develop rapid, simple and accurate detection method for Escherichia coli (E. coli) due to its widely distributed pathogenic bacteria. Herein, we prepared AgBr nanoparticles (NPs) anchored 3D nitrogen-doped graphene hydrogel (3DNGH) nanocomposites with an exceptionally large accessible surface by a simple hydrothermal approach. The as-prepared 3DNGH porous nanocomposite not only showed better conductivity than that of 3D graphene due to introducing nitrogen element into graphene framework, but also provided a high loading volume for immobilizing luminol...
June 13, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28623919/effects-of-karela-bitter-melon-momordica-charantia-on-genes-of-lipids-and-carbohydrates-metabolism-in-experimental-hypercholesterolemia-biochemical-molecular-and-histopathological-study
#17
Dalia Yossri Saad, Mohamed Mohamed Soliman, Ahmed A Baiomy, Magdy Hassan Yassin, Hanan Basiouni El-Sawy
BACKGROUND: Hypercholesterolemia is a serious diseases associated with type-2 diabetes, atherosclerosis, cardiovascular disorders and liver diseases. Humans seek for safe herbal medication such as karela (Momordica charantia/bitter melon) to treat such disorders to avoid side effect of pharmacotherapies widely used. METHODS: Forty male Wistar rats were divided into four equal groups; control group with free access to food and water, cholesterol administered group (40 mg/kg BW orally); karela administered group (5 g /kg BW orally) and mixture of cholesterol and karela...
June 17, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28623168/access-to-nicotine-in-drinking-water-reduces-weight-gain-without-changing-caloric-intake-on-high-fat-diet-in-male-c57bl-6j-mice
#18
Cali A Calarco, Somin Lee, Marina R Picciotto
Nicotine and tobacco use is associated with lower body weight, and many smokers report concerns about weight. In animal studies, nicotine reduces weight gain, reduces food consumption, and alters energy expenditure, but these effects vary with duration and route of nicotine administration. Previous studies have used standardized nicotine doses, however, in this study, male and female mice had free access to nicotine drinking water for 30 days while fed either a high fat diet (HFD) or chow, allowing animals to titrate their nicotine intake...
June 13, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28621808/primary-care-interventions-to-reduce-childhood-obesity-and-sugar-sweetened-beverage-consumption-food-for-thought-for-oral-health-professionals
#19
Diane Dooley, Nicolette M Moultrie, Elsbeth Sites, Patricia B Crawford
OBJECTIVES: Childhood obesity remains a significant threat to America's children. Health care leaders have increasingly called upon oral health professionals to integrate healthy weight promotion and enhanced sugar-sweetened beverage counseling into their professional practices. The aim of this scoping review is to examine recent evidence regarding the effectiveness of primary care childhood obesity interventions that have potential for adoption by oral health professionals. METHODS: Medine, and PubMed were searched from 2010 to 2016 for review articles and studies reporting patient outcomes or policy outcomes relevant to primary care childhood obesity interventions for children ages 2-11 years...
June 16, 2017: Journal of Public Health Dentistry
https://www.readbyqxmd.com/read/28621583/effect-of-a-publicly-accessible-disclosure-system-on-food-safety-inspection-scores-in-retail-and-food-service-establishments
#20
Jihee Choi, Robert L Scharff
The increased frequency with which people are dining out coupled with an increase in the publicity of foodborne disease outbreaks has led the public to an increased awareness of food safety issues associated with food service establishments. To accommodate consumer needs, local health departments have increasingly publicized food establishments' health inspection scores. The objective of this study was to estimate the effect of the color-coded inspection score disclosure system in place since 2006 in Columbus, OH, by controlling for several confounding factors...
June 16, 2017: Journal of Food Protection
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