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https://www.readbyqxmd.com/read/28726083/exploring-factors-associated-with-declining-hiv-diagnoses-among-african-american-females
#1
Donna Hubbard McCree, William L Jeffries, Linda Beer, Zanetta Gant, Kimberlee Elmore, Madeline Sutton
HIV diagnoses among females in the USA declined 40% during 2005-2014 with the largest decline (42%) among Black/African Americans. African American females remain disproportionately affected. We explored contributions of STD rates and sexual risk behaviors among African American females, HIV diagnoses among potential male partners, and sexual risk behaviors and viral suppression rates among HIV-positive potential male partners to declining rates of HIV diagnoses among African American females. Results suggest temporal trends in the factors that increase HIV infectiousness and transmissibility within sexual networks, i...
July 19, 2017: Journal of Racial and Ethnic Health Disparities
https://www.readbyqxmd.com/read/28725028/detection-and-quantitation-of-copy-number-variation-in-the-voltage-gated-sodium-channel-gene-of-the-mosquito-culex-quinquefasciatus
#2
Walter Fabricio Silva Martins, Krishanthi Subramaniam, Keith Steen, Henry Mawejje, Triantafillos Liloglou, Martin James Donnelly, Craig Stephen Wilding
Insecticide resistance is typically associated with alterations to the insecticidal target-site or with gene expression variation at loci involved in insecticide detoxification. In some species copy number variation (CNV) of target site loci (e.g. the Ace-1 target site of carbamate insecticides) or detoxification genes has been implicated in the resistance phenotype. We show that field-collected Ugandan Culex quinquefasciatus display CNV for the voltage-gated sodium channel gene (Vgsc), target-site of pyrethroid and organochlorine insecticides...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28723470/sexually-transmitted-disease-and-male-infertility-a-systematic-review
#3
REVIEW
Mikkel Fode, Ferdinando Fusco, Larry Lipshultz, Wolfgang Weidner
CONTEXT: Theoretically, sexually transmitted diseases (STDs) have the potential to disrupt male fertility; however, the topic remains controversial. OBJECTIVE: To describe the possible association between STDs and male infertility and to explore possible pathophysiologic mechanisms. EVIDENCE ACQUISITION: We performed a systematic literature review in accordance with the PRISMA guidelines. PubMed, Embase, and the Cochrane Library were searched for articles published before January 1, 2016, using the MeSH terms for a variety of STDs and infertility...
October 2016: European Urology Focus
https://www.readbyqxmd.com/read/28720220/application-of-ultrahigh-performance-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry-for-the-characterization-of-organic-aerosol-searching-for-naphthenic-acids
#4
Mahmoud M Yassine, Ewa Dabek-Zlotorzynska
Naphthenic acids (NAs) are naturally occurring constituents of hydrocarbon deposits (petroleum, oil sands bitumen, and crude oils), and present in any facilities that extract, process or use crude oil or bitumen for manufacturing. In the Athabasca oil sands region (AOSR) of Alberta, Canada, this diverse group of saturated acyclic, monocyclic, and polycyclic carboxylic acids is present in bitumen and in tailing ponds. Little is known about the occurrence of residual oil sands derived organic material, including NAs, in atmospheric particulate matter (PM)...
June 28, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28715262/sexting-behaviors-exhibited-by-men-who-have-sex-with-men-between-the-ages-of-18-70-who-live-in-a-socially-conservative-state
#5
Joseph M Currin, Randolph D Hubach
Sexting, defined as the sending and receiving of sexually suggestive or sexually explicit text or photos, has been growing in prevalence. Recent studies have demonstrated that over half of individuals sampled over 17 and regardless of gender participate in some type of sexting behavior. Most studies on sexting behaviors, including those looking at men who have sex with men (MSM) focus on emerging adult or university-based populations. The goal of the current study was to sample a nonuniversity-based MSM adult population to determine the prevalence of sexting behavior and the odds that a person engages in sexting behaviors based on certain sexual behaviors...
July 2017: Cyberpsychology, Behavior and Social Networking
https://www.readbyqxmd.com/read/28708724/impact-of-ssf-on-diagnostic-performance-of-coronary-computed-tomography-angiography-within-1-heart-beat-in-patients-with-high-heart-rate-using-a-256-row-detector-computed-tomography
#6
Junfu Liang, Hui Wang, Lei Xu, Li Dong, Zhanming Fan, Rui Wang, Zhonghua Sun
OBJECTIVE: The aim of this study was to investigate the impact of a motion-correction algorithm on diagnostic accuracy of coronary computed tomography angiography (CCTA) within 1 heart beat in patients with high heart rate (HR) using a 256-row detector CT. METHOD: Sixty-four consecutive patients with known or suspected coronary artery disease (symptomatic) and with HR of 75 beats per minute or greater (mean [SD] HR, 82.6 [7.3] beats per minute) undergoing CCTA and invasive coronary angiography within 4 weeks were prospectively enrolled...
July 13, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28708025/chlamydia-and-gonorrhea-screening-and-expedited-partner-therapy-ept-practices-of-college-student-health-centers
#7
Sara B Oswalt, Heather P Eastman-Mueller
OBJECTIVE: To examine college student health centers' practices related to STD screening and treatment over a five-year period. PARTICIPANTS: College student health centers (SHCs) that completed the ACHA Pap and STI Survey between 2010 and 2014. METHODS: Chi-square tests were conducted with Cramer's V providing a measure of association. RESULTS: Chlamydia screening of women under 25 years of age was a well-established practice...
July 14, 2017: Journal of American College Health: J of ACH
https://www.readbyqxmd.com/read/28704629/enhanced-hazard-analysis-and-risk-assessment-for-human-in-the-loop-systems
#8
David Kaber, Maryam Zahabi
OBJECTIVE: The objective of this study was to enhance the existing system hazard analysis (SHA) technique by introducing the concepts of human and automation reliability quantification as well as fuzzy classification of system risks. These enhancements led to formulation of a new overall system risk-reliability score. BACKGROUND: Many system safety analysis methods focus on individual physical component failure. Some human reliability analyses (HRA) consider human-automation interaction in determining system failure rates...
August 2017: Human Factors
https://www.readbyqxmd.com/read/28699087/effects-of-endurance-training-on-autophagy-and-apoptotic-signaling-in-visceral-adipose-tissue-of-prolonged-high-fat-diet-fed-rats
#9
Sílvia Rocha-Rodrigues, Inês O Gonçalves, Jorge Beleza, António Ascensão, José Magalhães
PURPOSE: Autophagy and apoptosis play critical roles in both development and tissue homeostasis in response to (patho)physiological stimuli, such as high-fat diet (HFD) and endurance training (ET). Therefore, we aimed to investigate how ET modulates autophagy and apoptotic-related signaling in visceral adipose tissue of long-standing HFD-fed rats. METHODS: The study was conducted over a 17-week period on Sprague-Dawley rats, which were divided into four groups (n = 8/group): standard diet sedentary (STD+SED), high-fat diet sedentary (HFD+SED), standard diet ET (STD+ET) and high-fat diet ET (HFD+ET)...
July 11, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28694710/modeling-ecodevelopmental-context-of-sexually-transmitted-disease-hiv-risk-and-protective-behaviors-among-african-american-adolescents
#10
Ya-Huei Li, Osaro Mgbere, Susan Abughosh, Hua Chen, Paula Cuccaro, Ekere James Essien
Risk and protective processes are integrated developmental processes that directly or indirectly affect behavioral outcomes. A better understanding of these processes is needed, in order to gauge their contribution to sexual risk behaviors. This retrospective cross-sectional study modeled the ecodevelopmental chain of relationships to examine the social contexts of African-American (AA) adolescents associated with sexually transmitted disease (STD)- and HIV-risk behaviors. We used data from 1,619 AA adolescents with an average age of 16±1...
2017: HIV/AIDS: Research and Palliative Care
https://www.readbyqxmd.com/read/28685447/diet-induced-ketosis-protects-against-focal-cerebral-ischemia-in-mouse
#11
Kui Xu, Lena Ye, Katyayini Sharma, Yongming Jin, Matthew M Harrison, Tylor Caldwell, Jessica M Berthiaume, Yu Luo, Joseph C LaManna, Michelle A Puchowicz
Over the past decade we have consistently shown that ketosis is neuroprotective against ischemic insults in rats. We reported that diet-induced ketotic rats had a significant reduction in infarct volume when subjected to middle cerebral artery occlusion (MCAO), and improved survival and recovery after cardiac arrest and resuscitation. The neuroprotective mechanisms of ketosis (via ketogenic diet; KG) include (i) ketones are alternate energy substrates that can restore energy balance when glucose metabolism is deficient and (ii) ketones modulate cell-signalling pathways that are cytoprotective...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28683518/factors-associated-with-self-estimated-breath-alcohol-concentration-among-bar-patrons
#12
Matthew E Rossheim, Adam E Barry, Dennis L Thombs, Robert M Weiler, Jenna R Krall, Caroline J Stephenson, Scott T Walters, Mark B Reed, John D Clapp, Sumihiro Suzuki, Tracey E Barnett, M Brad Cannell
BACKGROUND: Few studies have examined the context in which drinkers underestimate their breath alcohol concentration (BrAC) in natural drinking environments. This study examined factors associated with bar patrons' self-estimated BrAC in high-risk college town settings. METHODS: Guided interview and BrAC data were collected from 510 participants recruited as they exited bars located close to large universities: 1 in Florida and 1 in Texas. RESULTS: Participants with the highest measured BrACs underestimated their BrAC levels the most...
July 6, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28676551/increased-fndc5-is-associated-with-insulin-resistance-in-high-fat-fed-mice
#13
Brianne L Guilford, Jake C Parson, Caleb W Grote, Stephanie N Vick, Janelle M Ryals, Douglas E Wright
FNDC5/irisin, has recently been identified as a novel protein that stimulates the "browning" of white adipose by inducing thermogenesis via increased uncoupling protein 1 (UCP1). We tested the hypothesis that high fat diet-induced prediabetic mice would exhibit increased FNDC5 and this effect would be attenuated by chronic exercise. C57BL/6 mice were randomized into three groups for the 4 week intervention: Standard diet (Std, n = 12), High fat diet (HF, n = 14), or High fat diet and free access to a running wheel (HFEX, n = 14)...
July 2017: Physiological Reports
https://www.readbyqxmd.com/read/28669395/afterload-dependence-of-right-ventricular-myocardial-strain
#14
Leah Wright, Kazuaki Negishi, Nathan Dwyer, Sudhir Wahi, Thomas H Marwick
BACKGROUND: Right ventricular (RV) free wall strain (RVFWS) is a feasible method for quantitation and follow-up of RV function and may have benefits over traditional markers such as fractional area change. However, like all ejection phase parameters, RVFWS is difficult to assess in the presence of changing afterload. The aim of this study was to compare RVFWS and traditional RV function parameters for tracking progress of RV function in patients with pulmonary arterial hypertension (PAH) over a range of pulmonary artery systolic pressure (PASPs)...
July 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28668520/24-h-personal-monitoring-of-exposure-to-power-frequency-magnetic-fields-in-adolescents-results-of-a-national-survey
#15
I Eliyahu, R Hareuveny, M Riven, S Kandel, L Kheifets
OBJECTIVES: The aim of this exposure assessment study was to gain information about the exposure levels of adolescents in Israel to power frequency (50Hz) magnetic fields (MF) through personal monitoring, and to provide reliable data for national policy development. METHODS: 84 adolescents, 6-10th grade students, carried an EMDEX II meter attached to their body for 24h. The meter recorded the MF every 1.5s. The students documented their activities and microenvironments, such as apartment (awake or asleep), school, transportation, open public areas and other indoor environments...
June 29, 2017: Environmental Research
https://www.readbyqxmd.com/read/28666469/on-the-implications-of-desexualizing-vaccines-against-sexually-transmitted-diseases-health-policy-challenges-in-a-multicultural-society
#16
Baruch Velan, Yaacov Yadgar
Two vaccines against sexually transmitted infections are included in many national vaccination programs: Hepatitis B Virus (HBV) vaccine and Human Papilloma Virus (HPV) vaccine. The trajectories of the implementation of these two programs were marked by differences in the way the sexual context of risk was communicated to the public. These trajectories fluctuated between full accounts of the sexual nature of the infection and attempts to desexualize the vaccines. Vaccine desexualization can be achieved by withholding information of sexual context, blurring information, and distancing the age of vaccination from the age of sexual debut...
July 1, 2017: Israel Journal of Health Policy Research
https://www.readbyqxmd.com/read/28666058/real-time-registration-of-3d-to-2d-ultrasound-images-for-image-guided-prostate-biopsy
#17
Derek J Gillies, Lori Gardi, Tharindu De Silva, Shuang-Ren Zhao, Aaron Fenster
PURPOSE: During image-guided prostate biopsy, needles are targeted at tissues that are suspicious of cancer to obtain specimen for histological examination. Unfortunately, patient motion causes targeting errors when using an MR-transrectal ultrasound (TRUS) fusion approach to augment the conventional biopsy procedure. This study aims to develop an automatic motion correction algorithm approaching the frame rate of an ultrasound system to be used in fusion-based prostate biopsy systems...
June 30, 2017: Medical Physics
https://www.readbyqxmd.com/read/28651402/-consecutive-cross-sectional-survey-of-prevalence-of-hiv-infection-std-and-related-factors-in-vietnamese-female-sex-workers-at-a-china-vietnam-border-area-2014-2015
#18
J Zhu, R Yuan, D Hu, Z B Zhu, X Yang, N Wang, B Wang
Objective: To investigate the prevalence of HIV infection/STD and related factors in Vietnamese female sex workers (FSWs). Methods: Consecutive cross-sectional surveys were conducted in June 2014, December 2014, May 2015 and November 2015 in Hekou, a county bordering Vietnam in Yunnan province. Convenience sampling were adopted to select 1 058 Vietnamese FSWs aged>16 years. Questionnaire interview were used to collect the information about their demographics, sexual behaviors and drug use. Serum and urine samples were collected for HIV infection/STD detection and drug use test...
May 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28644820/investigation-of-real-tissue-water-equivalent-path-lengths-using-an-efficient-dose-extinction-method
#19
Rongxiao Zhang, Esther Baer, Kyung-Wook Jee, Gregory C Sharp, Jay Flanz, Hsiao-Ming Lu
For proton therapy, an accurate conversion of CT HU to relative stopping power (RSP) is essential. Validation of the conversion based on real tissue samples is more direct than the current practice solely based on tissue substitutes and can potentially address variations over the population. Based on a novel dose extinction method, we measured water equivalent path lengths (WEPL) on animal tissue samples to evaluate the accuracy of CT HU to RSP conversion and potential variations over a population. A broad proton beam delivered a spread out Bragg peak to the samples sandwiched between a water tank and a 2D ion-chamber detector...
June 23, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28644609/galnac-tyrosine-is-a-ligand-of-plant-lectins-antibodies-and-human-and-murine-macrophage-galactose-type-lectins
#20
Ruslan Gibadullin, David Wayne Farnsworth, Joseph J Barchi, Jeffrey C Gildersleeve
In 2011, a new type of protein O-glycosylation was discovered in which N-acetylgalactosamine is attached to the side chain of tyrosine (GalNAc-Tyr). While present on dozens of proteins, the biological roles of GalNAc-Tyr are unknown. To gain insight into this new type of modification, we synthesized a group of GalNAc-Tyr glycopeptides, constructed microarrays, and evaluated potential recognition of GalNAc-Tyr by a series of glycan-binding proteins. Through a series of >150 microarray experiments, we assessed binding properties of a variety of plant lectins, monoclonal antibodies, and endogenous lectins...
July 14, 2017: ACS Chemical Biology
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