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https://www.readbyqxmd.com/read/27936518/computational-investigation-of-proton-transfer-pka-shifts-and-ph-optimum-of-protein-dna-and-protein-rna-complexes
#1
Yunhui Peng, Emil Alexov
Protein-nucleic acid interactions play a crucial role in many biological processes. This work investigates the changes of pKa values and protonation states of ionizable groups (including nucleic acid bases) that may occur at protein-nucleic acid binding. Taking advantage of the recently developed pKa calculation tool DelphiPka, we utilize the large protein-nucleic acid interaction database (NPIDB database) to model pKa shifts caused by binding. It has been found that the protein's interfacial basic residues experience favorable electrostatic interactions while the protein acidic residues undergo proton uptake to reduce the energy cost upon the binding...
December 9, 2016: Proteins
https://www.readbyqxmd.com/read/27936475/-jewish-participants-and-contributions-to-the-conferences-of-the-german-ophthalmological-society-during-national-socialism
#2
J M Rohrbach
No abstract text is available yet for this article.
December 9, 2016: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/27936471/prevalence-of-lens-opacities-in-adult-chinese-americans-the-chinese-american-eye-study-ches
#3
Rohit Varma, Jie Sun, Mina Torres, Shuang Wu, Chunyi Hsu, Stanley Paul Azen, Roberta McKean-Cowdin
Purpose: We determined the age- and sex-specific prevalence of posterior subcapsular (PSC), nuclear, cortical, and mixed lens opacities in a population-based sample of Chinese-American adults. Methods: A population-based sample of Chinese-Americans 50 years and older, from 10 census tracts in Monterey Park, CA, USA, underwent a detailed interview and a comprehensive clinical examination that included assessment of different types of lens opacities by the slit-lamp-based Lens Opacities Classification System II (LOCS II)...
December 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27936458/predictors-of-functional-disability-with-focus-on-activities-of-daily-living-a-community-based-follow-up-study-in-older-adults-in-india
#4
Aarti Nagarkar, Yashoda Kashikar
BACKGROUND: Disability in activities of daily living is a growing concern among older populations all over the world. India has one of the rapidly ageing populations and predicted burden of functional disability is higher for Indian older adults as compared to other ageing Asian countries. METHODS: Total 1140 aged 60 years and over participated in a baseline study. 560 of them participated in the prospective cohort study conducted in the city of Pune, India. An interview and functional assessment using a questionnaire and Pune-FAAT tool was carried out in 2013-14...
December 2, 2016: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/27936455/non-suicidal-self-injury-and-frequency-of-suicide-attempts-the-role-of-pain-persistence
#5
Keyne C Law, Lauren R Khazem, Hyejin M Jin, Michael D Anestis
BACKGROUND: Non-suicidal self-injury (NSSI) and suicidal behavior exhibit a robust association with one another. Research on the contexts within which this relationship is stronger or weaker, however, is limited. The interpersonal theory of suicidal behavior (ITS) posits that NSSI influences suicidal behavior through a habituation to physical pain and, as such, pain tolerance has been theorized to play an important role. We tested whether pain persistence, the difference between pain threshold and pain tolerance, would moderate the relationship between frequency of NSSI and suicidal behavior in both an undergraduate and community sample...
November 20, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27936453/biological-mechanisms-of-depression-following-treatment-with-interferon-for-chronic-hepatitis-c-a-critical-systematic-review
#6
REVIEW
Myrela O Machado, Giovanni Oriolo, Beatrice Bortolato, Cristiano A Köhler, Michael Maes, Marco Solmi, Iria Grande, Rocío Martín-Santos, Eduard Vieta, André F Carvalho
BACKGROUND: A significant subset of patients infected by the hepatitis C virus (HCV) develops a major depressive episode (MDE) during Interferon-alpha (IFN-α) based immunotherapy. We performed a systematic review of studies which examined biological mechanisms contributing to the onset of a MDE during IFN-α-based immunotherapy for HCV. METHODS: Major electronic databases were searched from inception up until 15th February 2016 for peer-reviewed prospective studies that had enrolled HCV infected patients who received IFN-α treatment...
November 27, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27936440/stride-variability-measures-derived-from-wrist-and-hip-worn-accelerometers
#7
Jacek K Urbanek, Jaroslaw Harezlak, Nancy W Glynn, Tamara Harris, Ciprian Crainiceanu, Vadim Zipunnikov
Many epidemiological and clinical studies use accelerometry to objectively measure physical activity using the activity counts, vector magnitude, or number of steps. These measures use just a fraction of the information in the raw accelerometry data as they are typically summarized at the minute level. To address this problem, we define and estimate two measures of temporal stride-to-stride gait variability based on raw accelerometry data: Amplitude Deviation (AD) and Phase Deviation (PD). We explore the sensitivity of our approach to on-body placement of the accelerometer by comparing hip, left and right wrist placements...
November 30, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27936439/symptoms-of-prolonged-grief-post-traumatic-stress-and-depression-after-loss-in-a-dutch-community-sample-a-latent-class-analysis
#8
A A A Manik J Djelantik, Geert E Smid, Rolf J Kleber, Paul A Boelen
Mental health problems following loss can manifest as heterogeneous symptomatology that may include symptoms of Prolonged Grief Disorder (PGD), Post-Traumatic Stress Disorder (PTSD), and Major Depressive Disorder (MDD). However, the co-occurrence of symptoms of these three disorders is still only partially explored. The aims of this study were to identify subgroups (i.e., classes) in a Dutch sample of bereaved individuals, based on severity and/or co-occurrence of symptoms and to identify predictors for these subgroups, taking into account all three disorders...
November 22, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27936438/stressful-life-transitions-and-wellbeing-a-comparison-of-the-stress-buffering-hypothesis-and-the-social-identity-model-of-identity-change
#9
Nurul F Praharso, Morgan J Tear, Tegan Cruwys
The relationship between stressful life transitions and wellbeing is well established, however, the protective role of social connectedness has received mixed support. We test two theoretical models, the Stress Buffering Hypothesis and the Social Identity Model of Identity Change, to determine which best explains the relationship between social connectedness, stress, and wellbeing. Study 1 (N=165) was an experiment in which participants considered the impact of moving cities versus receiving a serious health diagnosis...
November 29, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27936410/body-image-and-emotional-distress-in-newly-diagnosed-cancer-patients-the-mediating-role-of-dysfunctional-attitudes-and-rumination
#10
Jianlin Liu, Chao Xu Peh, Rathi Mahendran
Body image concerns (BIC) has been reported to be associated with emotional distress for cancers across various sites. This study sought to examine two cognitive vulnerability mechanisms: dysfunctional attitudes and rumination, and their combined effects on the relationship between BIC and emotional distress in newly diagnosed Asian cancer patients. Participants were 221 newly diagnosed adult cancer patients who were assessed on BIC, rumination, dysfunctional attitudes, and emotional distress. Path analysis was used to examine the hypothesized mediation model...
December 6, 2016: Body Image
https://www.readbyqxmd.com/read/27936409/is-body-shame-a-significant-mediator-of-the-relationship-between-mindfulness-skills-and-the-quality-of-life-of-treatment-seeking-children-and-adolescents-with-overweight-and-obesity
#11
Helena Moreira, Maria Cristina Canavarro
This study aimed to examine (a) whether mindfulness skills were associated with higher quality of life through lower body shame for treatment-seeking children/adolescents with overweight and obesity and (b) whether this indirect effect was moderated by children/adolescents' age and gender. The sample included 153 children/adolescents with overweight/obesity followed in individual nutrition consultations. Participants completed self-report measures of mindfulness, body shame, and quality of life. Moderated mediation analyses showed that higher levels of mindfulness were associated with better perceived quality of life through lower body shame, but only among girls...
December 6, 2016: Body Image
https://www.readbyqxmd.com/read/27936407/sentence-context-influences-the-subjective-perception-of-foreign-accents
#12
Sara Incera, Amee P Shah, Conor T McLennan, Matthew T Wetzel
We examined whether sentence context (the predictability of the final word) influences listeners' ratings of foreign-accented words. Previous work has demonstrated that accent manipulations affect listeners' processing of spoken language. We examined the converse of this relationship; whether context manipulations affect listeners' perceptions of accents. If there is a bidirectional relationship, listeners should be more likely to rate an accent as strong when the accented word is not predicted by the sentence...
December 6, 2016: Acta Psychologica
https://www.readbyqxmd.com/read/27936396/gnpat-p-d519g-is-independently-associated-with-markedly-increased-iron-stores-in-hfe-p-c282y-homozygotes
#13
James C Barton, Wen-Pin Chen, Mary J Emond, Pradyumna D Phatak, V Nathan Subramaniam, Paul C Adams, Lyle C Gurrin, Gregory J Anderson, Grant A Ramm, Lawrie W Powell, Katrina J Allen, John D Phillips, Charles J Parker, Gordon D McLaren, Christine E McLaren
BACKGROUND: GNPAT p.D519G positivity is significantly increased in HFE p.C282Y homozygotes with markedly increased iron stores. We sought to determine associations of p.D519G and iron-related variables with iron stores in p.C282Y homozygotes. METHODS: We defined markedly increased iron stores as serum ferritin >2247pmol/L (>1000μg/L) and either hepatic iron >236μmol/g dry weight or iron >10g by induction phlebotomy (men and women). We defined normal or mildly elevated iron stores as serum ferritin <674...
November 12, 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/27936375/putting-adolescents-at-risk-riding-with-drinking-drivers-who-are-adults-in-the-home
#14
Sion K Harris, Julie K Johnson, Lon Sherritt, Sarah Copelas, Melissa A Rappo, Celeste R Wilson
OBJECTIVE: Alcohol-related car crashes are a leading cause of adolescent death, and one in five U.S. adolescents reports recent riding in a car with a drinking driver. How often the driver is an adult in the home (e.g., parent) is unknown. Pediatric visits offer an opportunity to counsel families to reduce this risk. Our study aim was to determine the prevalence of recent riding with a drinking driver (RWDD) who was an adult in the home among adolescent primary care patients and to identify the demographic and environmental (substance use among family members) profiles of those at increased risk...
January 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/27936374/testing-a-matching-hypothesis-for-emerging-adults-in-project-match-during-treatment-and-one-year-outcomes
#15
Jordan P Davis, Brandon G Bergman, Douglas C Smith, John F Kelly
OBJECTIVE: Compared with older adults, emerging adults (18-29 years old) entering treatment typically have less severe alcohol use consequences. Also, their unique clinical presentations (e.g., modest initial abstinence motivation) and developmental contexts (e.g., drinking-rich social networks) may make a straightforward implementation of treatments developed for adults less effective. Yet, this has seldom been examined empirically. This study was a secondary analysis of Project MATCH (Matching Alcoholism Treatments to Client Heterogeneity) data examining (a) overall differences between emerging adults and older adults (≥30 years old) on outcomes during treatment and at 1-year follow-up, and (b) whether emerging adults had poorer outcomes on any of the three Project MATCH treatments in particular...
January 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/27936371/testing-cross-sectional-and-prospective-mediators-of-internalized-heterosexism-on-heavy-drinking-alcohol-problems-and-psychological-distress-among-heavy-drinking-men-who-have-sex-with-men
#16
Alexis Kuerbis, Ethan H Mereish, Marie Hayes, Christine M Davis, Sijing Shao, Jon Morgenstern
OBJECTIVE: Minority stress theory is one of the primary theories used to understand substance use among lesbian, gay, and bisexual populations. This study tested whether drinking to cope with stress (DTC), loneliness, and gay community participation (GCP) mediated the relationship between one type of minority stress (i.e., internalized heterosexism) and behavioral health outcomes. METHOD: Using secondary data analysis and the PROCESS procedure, relationships between internalized heterosexism, the mediators (DTC, loneliness, and GCP), and outcomes (heavy drinking, alcohol problems, and psychological distress) were explored, both cross-sectionally and in a lagged manner, among both treatment-seeking and non-treatment-seeking problem drinking men who have sex with men...
January 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/27936370/episodic-future-thinking-involving-the-nonsmoking-self-can-induce-lower-discounting-and-cigarette-consumption
#17
Wen-Bin Chiou, Wen-Hsiung Wu
OBJECTIVE: Building on recent advances showing that the engagement in episodic future thinking (EFT) rather than semantic future thinking (SFT) can induce individuals to delay gratification and that activation of the ideal self may promote goal attainment, we tested whether imagining life events after smoking cessation led to lower discounting and reduced smoking. METHOD: Ninety smokers (21 women, 69 men) with intentions to quit or reduce smoking were randomly assigned to one of the three experimental conditions: EFT, SFT, and control...
January 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/27936368/utility-of-brief-versions-of-the-alcohol-use-disorders-identification-test-audit-to-identify-excessive-drinking-among-patients-in-hiv-care-in-south-africa
#18
Neo K Morojele, Sebenzile Nkosi, Connie T Kekwaletswe, Paul A Shuper, Samuel O Manda, Bronwyn Myers, Charles D H Parry
OBJECTIVE: In sub-Saharan Africa, large proportions of patients who are on antiretroviral therapy (ART) engage in excessive alcohol use, which may lead to adverse health consequences and may go undetected. Consequently, health care workers need brief screening tools to be able to routinely identify and manage excessive alcohol use among their patients. Various brief versions of the valid and reliable 10-item Alcohol Use Disorders Identification Test (AUDIT) (i.e., the AUDIT-C, AUDIT-3, AUDIT-QF, AUDIT-PC, AUDIT-4, and m-FAST) may potentially replace the full AUDIT in busy HIV care settings...
January 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/27936367/alcohol-warning-label-perceptions-do-warning-sizes-and-plain-packaging-matter
#19
Mohammed Al-Hamdani, Steven M Smith
OBJECTIVE: There is a dearth of research on the effectiveness of stringent alcohol warning labels. Our experiment tested whether increasing the size of an alcohol health warning lowers product-based ratings. We examined whether plain packaging lowers ratings of alcohol products and the consumers who use them, increases ratings of bottle "boringness," and enhances warning recognition compared with branded packaging. METHOD: A total of 440 adults (51.7% female) viewed one of three warning sizes (50%, 75%, or 90% of label surface) on either a plain or branded bottle of distilled spirits, wine, and beer...
January 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/27936361/the-relationship-between-drinking-pattern-social-capital-and-area-deprivation-findings-from-the-health-survey-for-england
#20
Linda Ng Fat, Shaun Scholes, Stephen Jivraj
OBJECTIVE: The purpose of this study was to establish the relationships between heavy episodic and drinking frequency with area-deprivation and social capital in England. METHOD: Using the Health Survey for England 2002-2006, a nationally representative crosssectional survey (N = 54,422), multilevel logistic regression models with individuals nested within primary sampling units were carried out, stratified by sex, on (a) drinkers versus nondrinkers, (b) heavy episodic drinking versus drinking less (on the heaviest drinking day), and (c) fewer than 2 drink-free days versus at least 2 drink-free days...
January 2017: Journal of Studies on Alcohol and Drugs
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