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https://www.readbyqxmd.com/read/28522083/relationships-between-potentially-traumatic-events-sleep-disturbances-and-symptoms-of-ptsd-and-alcohol-use-disorder-in-a-young-adult-sample
#1
Mackenzie J Lind, Allison Baylor, Cassie M Overstreet, Sage E Hawn, Bruce D Rybarczyk, Kenneth S Kendler, Danielle M Dick, Ananda B Amstadter
OBJECTIVE: Traumatic events, particularly those that are interpersonal in nature, are associated with increased risk for co-occurring sequelae, including sleep disturbances, posttraumatic stress disorder (PTSD), and alcohol use disorder (AUD). However, the associations between these phenotypes have not been explored among college students. METHODS: We examined relationships between type of potentially traumatic event (PTE) exposure (pre-college) and sleep disturbances, as well as mediating effects of lifetime PTSD and AUD symptoms on these relationships, in a large undergraduate sample (N = 1599, 64...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28499112/polygenic-risk-personality-dimensions-and-adolescent-alcohol-use-problems-a-longitudinal-study
#2
James J Li, Jeanne E Savage, Kenneth S Kendler, Matthew Hickman, Liam Mahedy, John Macleod, Jaakko Kaprio, Richard J Rose, Danielle M Dick
OBJECTIVE: Alcohol use problems are common during adolescence and can predict serious negative outcomes in adulthood, including substance dependence and psychopathology. The current study examines the notion that alcohol use problems are driven by polygenic influences and that genetic influences may indirectly affect alcohol use problems through multiple pathways of risk, including variations in personality. METHOD: We used a genome-wide approach to examine associations between genetic risk for alcohol use problems, personality dimensions, and adolescent alcohol use problems in two separate longitudinal population-based samples, the Finnish Twin Cohort (FinnTwin12) and the Avon Longitudinal Study of Parents and Children (ALSPAC)...
May 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/28488144/does-parenting-influence-the-enduring-impact-of-severe-childhood-sexual-abuse-on-psychiatric-resilience-in-adulthood
#3
Mackenzie J Lind, Ruth C Brown, Christina M Sheerin, Timothy P York, John M Myers, Kenneth S Kendler, Ananda B Amstadter
This study examined the effect of parenting on the association between childhood sexual abuse (CSA) and psychiatric resilience in adulthood in a large female twin sample (n = 1423) assessed for severe CSA (i.e., attempted or completed intercourse before age 16). Severe CSA was associated with lower resilience to recent stressors in adulthood (defined as the difference between their internalizing symptoms and their predicted level of symptoms based on cumulative exposure to stressful life events). Subscales of the Parental Bonding Instrument were significantly associated with resilience...
May 9, 2017: Child Psychiatry and Human Development
https://www.readbyqxmd.com/read/28487351/gestational-high-fat-diet-and-bisphenol-a-exposure-heightens-mammary-cancer-risk
#4
Yuet-Kin Leung, Vinothini Govindarajah, Ana Cheong, Jen Veevers, Dan Song, Robin Gear, Xuegong Zhu, Jun Ying, Ady Kendler, Mario Medvedovic, Scott Belcher, Shuk-Mei Ho
In utero exposure to bisphenol A (BPA) increases mammary cancer susceptibility in offspring. High fat diet is widely believed to be a risk factor of breast cancer. The objective of this study was to determine whether maternal exposure to BPA in addition to high-butterfat (HBF) intake during pregnancy further impacts carcinogen-induced mammary cancer risk in offspring, and its dose-response curve. In this study, we found that gestational HBF intake in addition to a low-dose BPA (25 µg/kg BW/day) exposure increased mammary tumor incidence in a 50-day-of-age chemical carcinogen administration model and altered mammary gland morphology in offspring in a non-monotonic manner, while shortening tumor-free survival time compared with the HBF-alone group...
May 9, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28482691/the-philosophy-of-nosology
#5
Peter Zachar, Kenneth S Kendler
Many scholars believe that psychiatric nosology is undergoing a crisis of confidence. Some of the issues up for debate hark back to the introduction of the natural history approach to classification in the seventeenth century. Natural histories map sameness and difference rather than speculate about causes. In contrast, the natural classification approach aspires to carve nature at the joints by demarcating classifications by causes. Natural classifications are more ideal scientifically, but speculation about causality has had a poor track record in psychiatric nosology...
May 8, 2017: Annual Review of Clinical Psychology
https://www.readbyqxmd.com/read/28471244/aldh2-2-and-peer-drinking-in-east-asian-college-students
#6
Taryn O'Shea, Nathaniel Thomas, Bradley Todd Webb, Danielle M Dick, Kenneth S Kendler, Karen G Chartier
BACKGROUND: The ALDH2*2 allele (A-allele) at rs671 is more commonly carried by Asians and is associated with alcohol-related flushing, a strong adverse reaction to alcohol that is protective against drinking. Social factors, such as having friends who binge drink, also contribute to drinking in Asian youth. OBJECTIVES: This study examined the interplay between ALDH2*2, peer drinking, and alcohol consumption in college students. We hypothesized that the relationship between ALDH2*2 and standard grams of ethanol per month would vary based on the level of peer drinking...
May 4, 2017: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/28467524/causal-inference-in-psychiatric-epidemiology
#7
Kenneth S Kendler
No abstract text is available yet for this article.
May 3, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28466235/cannabis-and-depression-a-twin-model-approach-to-co-morbidity
#8
M Smolkina, K I Morley, F Rijsdijk, A Agrawal, J E Bergin, E C Nelson, D Statham, N G Martin, M T Lynskey
Cannabis use disorder (CUD) co-occurs with major depressive disorder (MDD) more frequently than would be expected by chance. However, studies to date have not produced a clear understanding of the mechanisms underlying this co-morbidity. Genetically informative studies can add valuable insight to this problem, as they allow the evaluation of competing models of co-morbidity. This study uses data from the Australian Twin Registry to compare 13 co-morbidity twin models initially proposed by Neale and Kendler (Am J Hum Genet 57:935-953, 1995)...
May 2, 2017: Behavior Genetics
https://www.readbyqxmd.com/read/28449133/maternal-alcohol-use-during-pregnancy-and-offspring-attention-deficit-hyperactivity-disorder-adhd-a-prospective-sibling-control-study
#9
Espen Moen Eilertsen, Line C Gjerde, Ted Reichborn-Kjennerud, Ragnhild E Ørstavik, Gun Peggy Knudsen, Camilla Stoltenberg, Nikolai Czajkowski, Espen Røysamb, Kenneth S Kendler, Eivind Ystrom
Background: Maternal alcohol use during pregnancy has repeatedly been associated with development of attention-deficit hyperactivity disorder (ADHD) in the offspring. It is, however not known whether this reflects a direct casual intra-uterine effect or a non-causal relationship due to confounding. We used three different approaches to control for measured and unmeasured confounding: statistical adjustment for covariates, negative control comparison against maternal pre-pregnancy alcohol use, and comparison among differentially exposed siblings...
April 24, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28416810/the-joint-impact-of-cognitive-performance-in-adolescence-and-familial-cognitive-aptitude-on-risk-for-major-psychiatric-disorders-a-delineation-of-four-potential-pathways-to-illness
#10
K S Kendler, H Ohlsson, R S E Keefe, K Sundquist, J Sundquist
How do joint measures of premorbid cognitive ability and familial cognitive aptitude (FCA) reflect risk for a diversity of psychiatric and substance use disorders? To address this question, we examined, using Cox models, the predictive effects of school achievement (SA) measured at age 16 and FCA-assessed from SA in siblings and cousins, and educational attainment in parents-on risk for 12 major psychiatric syndromes in 1 140 608 Swedes born 1972-1990. Four developmental patterns emerged. In the first, risk was predicted jointly by low levels of SA and high levels of FCA-that is a level of SA lower than would be predicted from the FCA...
April 18, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28414014/do-dsm-5-section-ii-personality-disorders-and-section-iii-personality-trait-domains-reflect-the-same-genetic-and-environmental-risk-factors
#11
T Reichborn-Kjennerud, R F Krueger, E Ystrom, F A Torvik, T H Rosenström, S H Aggen, S C South, M C Neale, G P Knudsen, K S Kendler, N O Czajkowski
BACKGROUND: DSM-5 includes two conceptualizations of personality disorders (PDs). The classification in Section II is identical to the one found in DSM-IV, and includes 10 categorical PDs. The Alternative Model (Section III) includes criteria for dimensional measures of maladaptive personality traits organized into five domains. The degree to which the two conceptualizations reflect the same etiological factors is not known. METHODS: We use data from a large population-based sample of adult twins from the Norwegian Institute of Public Health Twin Panel on interview-based DSM-IV PDs and a short self-report inventory that indexes the five domains of the DSM-5 Alternative Model plus a domain explicitly targeting compulsivity...
April 17, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28406579/disparities-in-pharmacotherapy-for-alcohol-use-disorder-in-the-context-of-universal-healthcare-a-swedish-register-study
#12
Katherine J Karriker-Jaffe, Jianguang Ji, Jan Sundquist, Kenneth S Kendler, Kristina Sundquist
BACKGROUND AND AIM: Pharmacotherapy can be an important part of the continuum of care for alcohol use disorder (AUD). The Swedish universal healthcare system emphasizes provision of care to marginalized groups. The primary aim was to test associations of neighbourhood deprivation and disadvantaged social status with receipt of AUD pharmacotherapy in this context. DESIGN: Data from linked population registers were used to follow an open cohort over 7 years. SETTING: Sweden...
April 12, 2017: Addiction
https://www.readbyqxmd.com/read/28397619/clarifying-the-role-of-neuroticism-in-suicidal-ideation-and-suicide-attempt-among-women-with-major-depressive-disorder
#13
L M Rappaport, J Flint, K S Kendler
BACKGROUND: Prior research consistently demonstrates that neuroticism increases risk for suicidal ideation, but the association between neuroticism and suicidal behavior has been inconsistent. Whereas neuroticism is recommended as an endophenotype for suicidality, the association of neuroticism with attempted suicide warrants clarification. In particular, prior research has not distinguished between correlates of attempted suicide, correlates of suicidal ideation, and correlates of comorbid psychopathology...
April 11, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28374657/dsm-disorders-and-their-criteria-how-should-they-inter-relate
#14
K S Kendler
While the changes in psychiatric diagnosis introduced by Diagnostic and Statistical Manual third edition (DSM-III) have had major benefits to the field of psychiatry, the reification of its diagnostic criteria and the widespread adoption of diagnostic literalism have been problematic. I argue that, at root, these developments can be best understood by contrasting two approaches to the relationship between DSM disorders and their criteria. In a constitutive relationship, criteria definitively define the disorder...
April 4, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28360924/molecular-genetic-influences-on-normative-and-problematic-alcohol-use-in-a-population-based-sample-of-college-students
#15
Bradley T Webb, Alexis C Edwards, Aaron R Wolen, Jessica E Salvatore, Fazil Aliev, Brien P Riley, Cuie Sun, Vernell S Williamson, James N Kitchens, Kimberly Pedersen, Amy Adkins, Megan E Cooke, Jeanne E Savage, Zoe Neale, Seung B Cho, Danielle M Dick, Kenneth S Kendler
Background: Genetic factors impact alcohol use behaviors and these factors may become increasingly evident during emerging adulthood. Examination of the effects of individual variants as well as aggregate genetic variation can clarify mechanisms underlying risk. Methods: We conducted genome-wide association studies (GWAS) in an ethnically diverse sample of college students for three quantitative outcomes including typical monthly alcohol consumption, alcohol problems, and maximum number of drinks in 24 h. Heritability based on common genetic variants (h(2)SNP) was assessed...
2017: Frontiers in Genetics
https://www.readbyqxmd.com/read/28359721/western-osteoporosis-alliance-clinical-practice-series-evaluating-the-balance-of-benefits-and-risks-of-long-term-osteoporosis-therapies
#16
REVIEW
David A Hanley, Michael R McClung, K Shawn Davison, Larry Dian, Steve T Harris, Paul D Miller, E Michael Lewiecki, David L Kendler
Osteoporosis is a chronic disease that requires life-long strategies to reduce fracture risk. Few trials have investigated the balance of benefits and risk with long-term use of osteoporosis therapies, and fewer still have investigated the consequences of treatment discontinuation. The best available evidence suggests that up to 10 years of treatment with an oral bisphosphonate maintains the degree of fracture risk reduction observed in the 3-year registration trials. With denosumab, 10 years of therapy appears to provide fracture risk reduction similar to or better than that observed in the 3-year registration trial...
March 27, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28350396/genetic-effects-influencing-risk-for-major-depressive-disorder-in-china-and-europe
#17
T B Bigdeli, S Ripke, R E Peterson, M Trzaskowski, S-A Bacanu, A Abdellaoui, T F M Andlauer, A T F Beekman, K Berger, D H R Blackwood, D I Boomsma, G Breen, H N Buttenschøn, E M Byrne, S Cichon, T-K Clarke, B Couvy-Duchesne, N Craddock, E J C de Geus, F Degenhardt, E C Dunn, A C Edwards, A H Fanous, A J Forstner, J Frank, M Gill, S D Gordon, H J Grabe, S P Hamilton, O Hardiman, C Hayward, A C Heath, A K Henders, S Herms, I B Hickie, P Hoffmann, G Homuth, J-J Hottenga, M Ising, R Jansen, S Kloiber, J A Knowles, M Lang, Q S Li, S Lucae, D J MacIntyre, P A F Madden, N G Martin, P J McGrath, P McGuffin, A M McIntosh, S E Medland, D Mehta, C M Middeldorp, Y Milaneschi, G W Montgomery, O Mors, B Müller-Myhsok, M Nauck, D R Nyholt, M M Nöthen, M J Owen, B W J H Penninx, M L Pergadia, R H Perlis, W J Peyrot, D J Porteous, J B Potash, J P Rice, M Rietschel, B P Riley, M Rivera, R Schoevers, T G Schulze, J Shi, S I Shyn, J H Smit, J W Smoller, F Streit, J Strohmaier, A Teumer, J Treutlein, S Van der Auwera, G van Grootheest, A M van Hemert, H Völzke, B T Webb, M M Weissman, J Wellmann, G Willemsen, S H Witt, D F Levinson, C M Lewis, N R Wray, J Flint, P F Sullivan, K S Kendler
Major depressive disorder (MDD) is a common, complex psychiatric disorder and a leading cause of disability worldwide. Despite twin studies indicating its modest heritability (~30-40%), extensive heterogeneity and a complex genetic architecture have complicated efforts to detect associated genetic risk variants. We combined single-nucleotide polymorphism (SNP) summary statistics from the CONVERGE and PGC studies of MDD, representing 10 502 Chinese (5282 cases and 5220 controls) and 18 663 European (9447 cases and 9215 controls) subjects...
March 28, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28345295/a-national-swedish-longitudinal-twin-sibling-study-of-alcohol-use-disorders-among-males
#18
E C Long, S L Lönn, J Sundquist, K Sundquist, K S Kendler
AIMS: To examine whether genetic influences on the development of alcohol use disorders (AUD) among men during emerging adulthood through mid-adulthood are stable or dynamic. DESIGN: A twin study modeling developmental changes in the genetic and environmental influences on AUD over three age periods (18-25, 26-33, and 33-41) as a Cholesky decomposition. SETTING: Sweden. PARTICIPANTS: Swedish male twin pairs (1,532 monozygotic and 1,940 dizygotic) and 66,033 full male sibling pairs born less than two years apart...
March 26, 2017: Addiction
https://www.readbyqxmd.com/read/28334662/the-association-between-personality-disorders-with-alcohol-use-and-misuse-a-population-based-twin-study
#19
E C Long, S H Aggen, M C Neale, G P Knudsen, R F Krueger, S C South, N Czajkowski, R Nesvåg, E Ystrom, F A Torvik, K S Kendler, N A Gillespie, T Reichborn-Kjennerud
BACKGROUND: A clearer understanding of the etiological overlap between DSM-IV personality disorders (PDs) and alcohol use (AU) and alcohol use disorder (AUD) is needed. To our knowledge, no study has modeled the association between all 10 DSM-IV PDs and lifetime AU and AUD. The aim of the present study is to identify which PDs are most strongly associated with the phenotypic, genetic, and environmental risks of lifetime AU and AUD, and to determine if these associations are stable across time...
May 1, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28319814/time-specific-and-cumulative-effects-of-exposure-to-parental-externalizing-behavior-on-risk-for-young-adult-alcohol-use-disorder
#20
Alexis C Edwards, Sara L Lönn, Katherine J Karriker-Jaffe, Jan Sundquist, Kenneth S Kendler, Kristina Sundquist
BACKGROUND: Previous studies indicate that parental externalizing behavior (EB) is a robust risk factor for alcohol use disorder (AUD) in their children, and that this is due to both inherited genetic liability and environmental exposure. However, it remains unclear whether the effects of exposure to parental EB vary as a function of timing and/or chronicity. METHODS: We identified biological parents with an alcohol use disorder, drug abuse, or criminal behavior, during different periods of their child's upbringing, using Swedish national registries...
March 8, 2017: Addictive Behaviors
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