Delacruzkarstensen7539
The distinction between genetic influences on the covariance (or bivariate heritability) and genetic correlations in bivariate twin models is often not well-understood or only one is reported while the results show distinctive information about the relation between traits. We applied bivariate twin models in a large sample of adolescent twins, to disentangle the association between well-being (WB) and four complex traits (optimism, anxious-depressed symptoms (AD), aggressive behaviour (AGG), and educational achievement (EA)). Optimism and AD showed respectively a strong positive and negative phenotypic correlation with WB, the negative correlation of WB and AGG is lower and the correlation with EA is nearly zero. All four traits showed a large genetic contribution to the covariance with well-being. The genetic correlations of well-being with optimism and AD are strong and smaller for AGG and EA. We used the results of the models to explain what information is retrieved based on the bivariate heritability versus the genetic correlations and the (clinical) implications.The Classical Twin Method (CTM) compares the similarity of monozygotic (MZ) twins with that of dizygotic (DZ) twins to make inferences about the relative importance of genes and environment in the etiology of individual differences. The design has been applied to thousands of traits across the biomedical, behavioral and social sciences and is arguably the most widely used natural experiment known to science. find more The fundamental assumption of the CTM is that trait relevant environmental covariation within MZ pairs is the same as that found within DZ pairs, so that zygosity differences in within-pair variance must be due to genetic factors uncontaminated by the environment. This equal environments assumption (EEA) has been, and still is hotly contested, and has been mentioned as a possible contributing factor to the missing heritability conundrum. In this manuscript, we introduce a new model for testing the EEA, which we call the Augmented Classical Twin Design which uses identity by descent (IBD) sharing between DZ twin pairs to estimate separate environmental variance components for MZ and DZ twin pairs, and provides a test of whether these are equal. We show through simulation that given large samples of DZ twin pairs, the model provides unbiased estimates of variance components and valid tests of the EEA under strong assumptions (e.g. no epistatic variance, IBD sharing in DZ twins estimated accurately etc.) which may not hold in reality. Sample sizes in excess of 50,000 DZ twin pairs with genome-wide genetic data are likely to be required in order to detect substantial violations of the EEA with moderate power. Consequently, we recommend that the Augmented Classical Twin Design only be applied to datasets with very large numbers of DZ twin pairs (> 50,000 DZ twin pairs), and given the strong assumptions relating to the absence of epistatic variance, appropriate caution be exercised regarding interpretation of the results.
To review the results of studies of the effects of dialysis and kidney transplantation on the autonomic nervous system alterations that occur in chronic kidney disease.
Vagal control of the heart mediated by arterial baroreceptors is altered early in the course of the renal disease. Sympathetic activation occurs, with increases in resting heart rate, venous plasma norepinephrine levels, muscle sympathetic nerve traffic, and other indirect indices of adrenergic drive. The magnitude of the changes reflects the clinical severity of the kidney disease. Both the sympathetic and parasympathetic alterations have a reflex origin, depending on the impairment in baroreflex and cardiopulmonary reflex control of the cardiovascular system. These alterations are partially reversed during acute hemodialysis, but the responses are variable depending on the specific type of dialytic treatment that is employed. Renal transplantation improves reflex cardiovascular control, resulting in sympathoinhibition following renal traascular system. These alterations are partially reversed during acute hemodialysis, but the responses are variable depending on the specific type of dialytic treatment that is employed. Renal transplantation improves reflex cardiovascular control, resulting in sympathoinhibition following renal transplantation if the native kidneys are removed. Sympathoinhibitory effects have been also reported in renal failure patients after bilateral renal denervation. Assessment of autonomic nervous system responses to dialysis and renal transplantation provides information of clinical interest, given the evidence that autonomic alterations are involved in the development and progression of cardiovascular complications, as well as in the prognosis of chronic kidney disease.Behcet's disease (BD) is a chronic, multisystemic, relapsing-remitting, progressive inflammatory disorder with unknown etiology. The aim of the study is to investigate the white matter integrity and subclinical brain parenchymal involvement in Behcet's subjects by utilizing diffusion tensor imaging (DTI) and to correlate apparent diffusion coefficient (ADC), fractional anisotropy (FA), mean diffusivity (MD), and radial diffusivity (RD) values measured from the diverse distinct anatomic locations with the disease duration time and neurocognitive function test results. Thirty-five adults with Behcet's disease and 21 age-matched healthy controls were enrolled in this study. Neurocognitive functions of the patients were evaluated with the Brief Repetable Battery-Neuropsychological tests (BRB-N). In both groups, DTI metrics were calculated from 19 different locations in the brain. The association between the DTI parameters and disease duration time and neurocognitive function test results were investigated. In Behresults even in patients without neurological symptoms which may imply insidious neurological involvement.
The Chinese government has made great progress in establishing the universal medical insurance system. This study aimed to analyze whether the universal medical insurance system protected middle-aged and elderly households from catastrophic health expenditure (CHE).
The data were obtained from the China Health and Retirement Longitudinal Study. We used household as our unit of analysis and CHE was measured as out-of-pocket expenditures ≥ 40% of nonfood household expenditures. Univariate analysis was deployed to examine the impacts of different medical insurance schemes on CHE, and the factors associated with CHE were estimated using a random-effects logit regression model.
We identified 10,005, 10,370, and 11,567 households in 2011, 2013, and 2015, respectively, and found 12.9% (2011), 26.6% (2013) and 27.9% (2015) of the households experienced CHE. When compared with no insurance, households enrolled in New Rural Cooperative Medical Insurance Scheme (P = 0.023) were associated with a lower incidence of CHE, but other insurance schemes were not significant. Households with members older than 65years (P < 0.001), members with chronic diseases (P < 0.001), members with poor self-reported health conditions (P < 0.001), and members receiving health care (P < 0.001) had a higher risk of CHE. Large household size (P < 0.001) and high household income per capita (P < 0.001) were major protective factors to CHE incidence.
Despite China's great stride in the medical insurance coverage, it fell short to provide financial protection against medical expenditure burden. To reduce the risk of CHE, an integrated poverty and elderly-oriented medical insurance system could be put in place to address these problems.
Despite China's great stride in the medical insurance coverage, it fell short to provide financial protection against medical expenditure burden. To reduce the risk of CHE, an integrated poverty and elderly-oriented medical insurance system could be put in place to address these problems.
Epilepsy affects nearly 50 million people around the world. As a common and chronic disease generates a high cost burden for healthcare system and patients.
We aimed to determine the most current direct and indirect costs of epilepsy in Poland from the social perspective for the years 2014-2018, to analyze the changes of expenditures over time, indicate trends and to determine key cost-drivers.
Direct and indirect costs using a top-down approach were estimated based on the public institutions' data for the ICD-10 codes G40 and G41. Direct costs included pharmacotherapy, hospitalizations, outpatient specialist care and rehabilitation. A human capital approach was used to estimate loss of productivity due to sick leaves and long-term inability to work.
Annual total direct and indirect costs related to epilepsy accounted for EUR 410 million in 2014 and decreased in subsequent years to EUR 361 million in 2018. The indirect costs were dominant (76-83% of total costs) and in the majority related to the long-term absenteeism (87-92% of total indirect costs). In 2014-2018, patients with epilepsy generated EUR 341 million to EUR 282 million of indirect costs. Annual direct costs for patients with epilepsy were EUR 69 million in 2014 and increased to EUR 80 million in 2018. The biggest expenses were the costs of drugs (> 50%) and hospitalizations (~ 40%).
Epilepsy is an expensive disorder in terms of consumption of resources and social costs. Decision-makers should take it under special consideration.
Epilepsy is an expensive disorder in terms of consumption of resources and social costs. Decision-makers should take it under special consideration.Retention in care and sustained viral suppression are integral outcomes in the care continuum for people living with HIV (PLWH) and HIV prevention; however, less is known about how substance use predicts sustained viral suppression over time. This study seeks to examine the predictive effects of substance use on sustained viral suppression in a sample of cisgender sexual minority men and gender minority PLWH (n = 163) drawn from a longitudinal sample in the Chicago area collected 2015-2019. Using data from 3 visits separated by 6 months, participants were coded persistently detectable, inconsistently virally suppressed, and consistently virally suppressed ( less then 40 copies/mL at all visits). Multinomial logistic regressions were utilized. About 40% of participants had sustained viral suppression. In multinomial logistic regressions, CUDIT-R predicted persistent detectable status and stimulant use was associated with inconsistent viral suppression. Substance use may create challenges in achieving sustained viral suppression, which has important implications for care and prevention.Men who have sex with women are understudied in HIV research despite the extent to which they experience HIV-related mortality and contribute to the epidemic among women. During our experience of developing and piloting an HIV prevention intervention for men living with HIV in South Africa, and planning to have a child with an HIV-negative woman, ethical questions were posed regarding implementation of a male-centered intervention that did not require female partner participation. Two overarching ethical issues were the potential for (1) compromising women's reproductive and sexual autonomy and (2) increasing HIV-acquisition risks for the woman because the intervention efficacy was unknown. We describe here how these concerns were addressed to facilitate development of a male-centered HIV-prevention intervention. We hope this process manuscript will support researchers, clinicians, and reviewers to engage men who have sex with women in HIV prevention and care.