Cardiac computed tomography-derived coronary artery volume to myocardial mass in patients with severe coronary artery disease.

BACKGROUND: Coronary artery lumen volume (V) to myocardial mass (M) ratio (V/M) can show the mismatch between epicardial coronary arteries and the underlying myocardium. METHODS: The V, M and V/M were obtained from the coronary computed tomography angiography (CCTA) of patients in the FAST-TRACK CABG study, the first-in-human trial of coronary artery bypass grafting (CABG) guided solely by CCTA and fractional flow reserve derived from CCTA (FFRCT) in patients with complex coronary artery disease (CAD). The correlations between V/M ratios and baseline characteristics were determined and compared with those from the ADVANCE registry, an unselected cohort of historical controls with chronic CAD. RESULTS: The V/M ratio was obtained in 106 of the 114 pre-CABG CCTAs. Mean age was 65.6 years and 87% of them were male. The anatomical SYNTAX score from CCTA was significantly higher than the functional SYNTAX score derived using FFRCT [43.1 (15.2) vs 41.1 (16.5), p â€‹< â€‹0.001]. Mean V, M, and V/M were 2204 â€‹mm3, 137 â€‹g, and 16.5 â€‹mm3/g, respectively. There were weak negative correlations between V and anatomical and functional SYNTAX scores (Pearson's r â€‹= â€‹-0.26 and -0.34). V and V/M had a strong correlation (r â€‹= â€‹0.82). The V/M ratio in the current study was significantly lower than that in the ADVANCE registry (median 16.1 vs. 24.8 [1st quartile 20.1]). CONCLUSION: Systematically smaller V/M ratios were found in this population with severe CAD requiring CABG compared to an unselected cohort with chronic CAD. The V/M ratio could provide additional non-invasive assessment of CAD especially when combined with FFRCT.

Delicate Analysis of Interacting Proteins and Their Assemblies by Flow Field-Flow Fractionation Techniques.

We study the efficiency of several asymmetrical flow field-flow fractionation (AF4) techniques to investigate self-associating wheat gluten proteins. We compare the use of a denaturing buffer including sodium dodecyl sulfate (SDS) and a mild chaotropic solvent, water/ethanol, as the eluent, on a model gluten sample. Through a thorough analysis of the data obtained from coupled light scattering detectors and with the identification of molecular composition of the eluted protein, we evidence coelution events in several conditions. We show that the focus step used in conventional AF4 with the SDS buffer leads to the formation of aggregates that coelute with monomeric proteins. By contrast, a frit-inlet device enables the fractionation of individual wheat proteins in the SDS buffer. Interestingly conventional AF4, using water/ethanol as eluent, is an effective method for fractionating gluten proteins and their complex dynamic assemblies, which involve weak forces and are composed of both monomeric and polymeric proteins.

Intimacy Promotes Couples' Sexual Well-Being on a Daily Basis and Over One Year: The Role of Positive Sexual Cues.

There is growing interest in identifying factors that promote sexual well-being in romantic relationships. One such factor is intimacy-a process involving self-disclosure and empathic response that is positively associated with sexuality outcomes. However, most work among community couples examined cross-sectional associations in mixed-sex/gender couples using a single sexual outcome, which may not capture daily variations in intimacy and different dimensions of sexual well-being among a diversity of unions over time. Additionally, potential mediating mechanisms of the intimacy-sexual well-being association, such as attention to positive sexual cues (i.e., sexual thoughts and feelings), have been neglected. Adopting daily diary and longitudinal designs, the present study examined whether greater intimacy was associated with higher levels of positive sexual cues and, in turn, higher sexual well-being (sexual desire, satisfaction and distress). A convenience sample of 211 couples (Mage = 30.2 years; SD = 8.3; 75 sexually diverse couples) completed a survey on days of sexual activity with their partner, over a 35-day period and 12 months later. Daily results showed that intimacy was related to greater attention to positive sexual cues for both partners, which in turn was associated with their greater sexual desire and satisfaction and lower sexual distress. Longitudinal results showed that a person's greater daily intimacy was linked to their own greater sexual desire and satisfaction 12 months later via their own higher positive sexual cues, but not to their partner's cues or well-being. Findings extend interpersonal models of sexual well-being and support the role of intimacy and positive sexual cues therein.

Scaling Properties of Gelling Systems in Nonlinear Shear Experiments.

We study model near-critical polymer gelling systems made of gluten protein dispersions stabilized at different distances from the gel point. We impose different shear rates and follow the time evolution of the stress. For sufficiently large shear rates, an intermediate stress overshoot is measured before reaching the steady state. We evidence self-similarity of the stress overshoot as a function of the applied shear rate for samples with various distances from the gel point, which is related to the elastic energy stored by the samples, as for dense systems close to the jamming transition. In concordance with the findings for glassy and jammed systems, we also measure that the stress after flow cessation decreases as a power law with time, with a characteristic relaxation time that depends on the shear rate previously imposed. These features revealed in nonlinear rheology could be the signature of a mesoscopic dynamics, which would depend on the extent of gelation.

Associations Between Pornography Use Through Different Media and Sexual and Relationship Satisfaction Among Cohabiting Couples.

Pornography can be used through multiple media and its associations with couples' relationship and sexual satisfaction are mixed. The aims of this study were to examine the proportion of use of different pornographic media (i.e., videos, pictures, audio material, and written material), including different contents (i.e., sexual activities and nudity), gender-based differences in the frequency of use of these media, and the associations between an individual's frequency of use of different pornographic media and their own and their partner's sexual and relationship satisfaction, considering potential gender differences. A sample of 706 adult couples (1368 participants; Mage = 32.19 years) completed online self-report questionnaires. Results of actor-partner interdependence models indicated that video use was associated with lower relationship and sexual satisfaction, and partners' lower sexual satisfaction. Picture use was associated with lower relationship satisfaction and partners' lower sexual satisfaction. Written material use was associated with lower sexual satisfaction. Cisgender women's audio use was associated with their own higher sexual satisfaction, whereas cisgender men's audio use was associated with their partner's lower sexual satisfaction. These findings suggest different associations with sexual and relationship satisfaction depending on the pornographic media.

Uncovering the most robust predictors of problematic pornography use: A large-scale machine learning study across 16 countries.

Problematic pornography use (PPU) is the most common manifestation of the newly introduced compulsive sexual behavior disorder diagnosis in the 11th revision of the International Classification of Diseases. Research related to PPU has proliferated in the past two decades, but most prior studies were characterized by several shortcomings (e.g., using homogenous, small samples), resulting in crucial knowledge gaps and a limited understanding concerning empirically based risk factors for PPU. This study aimed to identify the most robust risk factors for PPU using a preregistered study design. Independent laboratories' 74 preexisting self-report data sets (Nparticipants = 112,397; Ncountries = 16) were combined to identify which factors can best predict PPU using an artificial intelligence-based method (i.e., machine learning). We conducted random forest models on each data set to examine how different sociodemographic, psychological, and other characteristics predict PPU, and combined the results of all data sets using random-effects meta-analysis with meta-analytic moderators (e.g., community vs. treatment-seeking samples). Predictors explained 45.84% of the variance in PPU scores. Out of the 700+ potential predictors, 17 variables emerged as significant predictors across data sets, with the top five being (a) pornography use frequency, (b) emotional avoidance pornography use motivation, (c) stress reduction pornography use motivation, (d) moral incongruence toward pornography use, and (e) sexual shame. This study is the largest and most integrative data analytic effort in the field to date. Findings contribute to a better understanding of PPU's etiology and may provide deeper insights for developing more efficient, cost-effective, empirically based directions for future research as well as prevention and intervention programs targeting PPU. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Who are the patients who use non-pharmacological home remedies? Cross-sectional study in Switzerland and France.

BACKGROUND: Many patients may be tempted to use non-pharmacological home remedies (NPHRs) to relieve various complaints. To the best of our knowledge, there is little data on the characteristics of patients using NPHRs. In this cross-sectional study carried out between March 2020 and July 2021, we examined the socio-demographic factors underlying their use in patient populations in Switzerland and France. METHODS: Using official registries, we randomly selected 50 primary care physicians (PCPs) in Geneva (Switzerland) and Lyon/Grenoble (France). Seven research assistants consecutively recruited patients from PCP waiting rooms (20-25 patients per practice). Patients completed a paper-based questionnaire assessing the use [yes/no] of 304 NPHRs for 79 medical conditions. The NPHR list was developed by our team with input from 97 patients. We used univariable and multivariable logistic regressions, adjusting for intra-cluster correlations, to examine associations between NPHR use and patient characteristics (gender, age, practice location, nationality, education level, and self-rated health). RESULTS: Of the 1198 eligible patients, 1012 agreed to participate (85%). Overall, 635 patients (63%) reported using at least one of the remedies tested in the study. In multivariable analysis, women (OR = 1.7 [95%CI = 1.3-2.3], P-value < 0.001), younger patients (< 40 years: OR = 2.1 [95%CI = 1.6-2.9], P-value < 0.001), and French patients (OR = 1.6 [95%CI = 1.1-2.3], P-value < 0.001) tended to use NPHRs more often than other patients. CONCLUSIONS: Many patients, particularly women, young people, and French patients, reported using NPHRs. This survey's findings hold the potential to inform healthcare providers, policymakers, and researchers about the diverse preferences that shape patients' healthcare choices.

Dissociation and Sexual Concerns in Male Survivors of Childhood Sexual Abuse: The Role of Identity Cohesion.

Research on male survivors of childhood sexual abuse is notably deficient when it comes to addressing their sexual concerns, such as experiences of sexual distress, negative thoughts, and feelings related to their sexuality. Dissociation, a known consequence of childhood sexual abuse, could be associated with higher sexual concerns through identity cohesion. Precisely, dissociation can potentially be related to lower identity cohesion (e.g., not knowing what you want or need). In return, lower identity cohesion may be related to higher sexual concerns by impeding the capacity to know and accept oneself, which tends to promote a positive and healthy sexuality. This study aimed to examine the role of identity cohesion in the link between dissociation and sexual concerns in 105 men consulting for their history of childhood sexual abuse. Men completed questionnaires assessing dissociation, sexual concerns, and identity cohesion at admission in a community setting. Results of a path analysis revealed an indirect association between dissociation and higher sexual concerns through lower identity cohesion. The model explained 27.6% of the variance in sexual concerns. This study highlights the relevance of interventions targeting dissociative symptoms to improve identity cohesion and sexual health in male survivors of childhood sexual abuse.

Coronary bypass surgery guided by computed tomography in a low-risk population.

BACKGROUND AND AIMS: In patients with three-vessel disease and/or left main disease, selecting revascularization strategy based on coronary computed tomography angiography (CCTA) has a high level of virtual agreement with treatment decisions based on invasive coronary angiography (ICA). METHODS: In this study, coronary artery bypass grafting (CABG) procedures were planned based on CCTA without knowledge of ICA. The CABG strategy was recommended by a central core laboratory assessing the anatomy and functionality of the coronary circulation. The primary feasibility endpoint was the percentage of operations performed without access to the ICA. The primary safety endpoint was graft patency on 30-day follow-up CCTA. Secondary endpoints included topographical adequacy of grafting, major adverse cardiac and cerebrovascular (MACCE), and major bleeding events at 30 days. The study was considered positive if the lower boundary of confidence intervals (CI) for feasibility was ≥75% (NCT04142021). RESULTS: The study enrolled 114 patients with a mean (standard deviation) anatomical SYNTAX score and Society of Thoracic Surgery score of 43.6 (15.3) and 0.81 (0.63), respectively. Unblinding ICA was required in one case yielding a feasibility of 99.1% (95% CI 95.2%-100%). The concordance and agreement in revascularization planning between the ICA- and CCTA-Heart Teams was 82.9% with a moderate kappa of 0.58 (95% CI 0.50-0.66) and between the CCTA-Heart Team and actual treatment was 83.7% with a substantial kappa of 0.61 (95% CI 0.53-0.68). The 30-day follow-up CCTA in 102 patients (91.9%) showed an anastomosis patency rate of 92.6%, whilst MACCE was 7.2% and major bleeding 2.7%. CONCLUSIONS: CABG guided by CCTA is feasible and has an acceptable safety profile in a selected population of complex coronary artery disease.

In vitro protein digestibility of RuBisCO-enriched wheat dough: a comparative study with pea and gluten proteins.

Growing demand for sustainable, plant-based protein sources has stimulated interest in new ingredients for food enrichment. This study investigates the nutritional and digestive implications of enriching wheat dough with RuBisCO, in comparison to pea protein-enriched and gluten-enriched doughs. The protein quality and digestibility of these enriched doughs were analysed through dough characterization, in vitro digestion experiments and biochemical analysis of digesta. Our findings indicate that an enrichment at 10% of RuBisCO or pea proteins improves the chemical score and the in vitro PDCAAS (IV-PDCAAS) score of wheat dough as compared to the control dough. Digestibility assays suggest that RuBisCO introduction modifies the protein hydrolysis kinetics: the nitrogen release is lower during gastric digestion but larger during intestinal digestion than other samples. The analysis of the protein composition of the soluble and insoluble parts of digesta, using size-exclusion chromatography, reveals that the protein network in RuBisCO-enriched dough is more resistant to gastric hydrolysis than the ones of other doughs. Indeed, non-covalently bound peptides and disulfide-bound protein aggregates partly composed of RuBisCO subunits remain insoluble at the end of the gastric phase. The digestion of these protein structures is then mostly performed during the intestinal phase. These results are also discussed in relation to the digestive enzymatic cleavage sites, the presence of potential enzyme inhibitors, the protein aggregation state and the secondary structures of the protein network in each dough type.

Associations Between Pornography Use Frequency and Intimate Partner Violence Perpetration Among Young Adult Couples: A 2-Year Longitudinal Study.

Pornography use is a common sexual activity for many individuals including those in a romantic relationship. Some studies have shown that violent content depicted in pornography is a risk factor for perpetration of violence in real life. Even if most of these studies examined perpetration of violent behaviors in general, not specifically toward the intimate partner, some studies have shown that pornography use frequency is related to a greater perpetration of intimate partner violence (IPV), while other studies have found that it is not significantly related. However, most previous studies were cross-sectional, sampled individuals rather than couples, and did not include separately forms of IPV (e.g., physical, psychological, and sexual). The present study examined the associations between pornography use frequency and the perpetration of physical and psychological IPV, and sexual coercion among young adult couples. A convenience sample of 113 couples aged between 16 and 29 years old completed self-reported online questionnaires two times over a 2-year period. The results of autoregressive cross-lagged models showed that a person's pornography use frequency at Time 1 was related to their own higher sexual coercion perpetration 2 years later and that a person's sexual coercion perpetration was related to their partner's lower pornography use frequency 2 years later. However, no significant association between pornography use frequency and physical and psychological IPV emerged. In line with previous studies, our results suggest that pornography use represents an important risk factor for the perpetration of sexual coercion. Findings support the need to include education around pornography use in sexual violence prevention programs to avoid that young adults reproduce pornographic scripts in their sexuality.

Accurate Detection of Convergent Mutations in Large Protein Alignments With ConDor.

Evolutionary convergences are observed at all levels, from phenotype to DNA and protein sequences, and changes at these different levels tend to be correlated. Notably, convergent mutations can lead to convergent changes in phenotype, such as changes in metabolism, drug resistance, and other adaptations to changing environments. We propose a two-component approach to detect mutations subject to convergent evolution in protein alignments. The "Emergence" component selects mutations that emerge more often than expected, while the "Correlation" component selects mutations that correlate with the convergent phenotype under study. With regard to Emergence, a phylogeny deduced from the alignment is provided by the user and is used to simulate the evolution of each alignment position. These simulations allow us to estimate the expected number of mutations in a neutral model, which is compared to the observed number of mutations in the data studied. In Correlation, a comparative phylogenetic approach, is used to measure whether the presence of each of the observed mutations is correlated with the convergent phenotype. Each component can be used on its own, for example Emergence when no phenotype is available. Our method is implemented in a standalone workflow and a webserver, called ConDor. We evaluate the properties of ConDor using simulated data, and we apply it to three real datasets: sedge PEPC proteins, HIV reverse transcriptase, and fish rhodopsin. The results show that the two components of ConDor complement each other, with an overall accuracy that compares favorably to other available tools, especially on large datasets.

Associations Between Contents of Pornography and Sexual Satisfaction and Function Among Young Adults.

Pornography offers a wide variety of sexual contents and has documented potential positive (e.g., higher sexual satisfaction) and negative associations (e.g., lower sexual function) with sexuality. The aims of this study were to describe the proportion of use of five different contents of pornography (i.e. group sex, passion and romance, gender-bending, taboo transgression and forbidden sex, power, control, and rough sex pornography), to examine gender-based differences in the frequency of use of these contents, and to examine the associations between the frequency of use of these contents and sexual satisfaction and function, considering potential differences among genders and individuals with and without a romantic or sexual partner, and controlling for frequency of masturbation. A sample of 827 young adults (503 women; Mage = 23.44) completed online self-report questionnaires. Results of path analysis indicated that, controlling for frequency of masturbation, the use of passion and romance pornography was associated with higher sexual satisfaction, whereas the use of power, control, and rough sex pornography was associated with lower sexual satisfaction. Cisgender men's use of power, control, and rough sex pornography was also associated with lower sexual function. These findings suggest different associations between pornography use and sexual satisfaction and function depending on the pornographic contents used.

Attachment as an intermediary variable between childhood maltreatment and perceived partner responsiveness in adolescents and young adults.

Cumulative childhood maltreatment (CCM) is associated with relationship difficulties including lower perceived partner responsiveness (PPR)-the degree of feeling cared for, understood, and validated by a person's partner. Attachment theory is understood via its representations of self and others and could offer a better understanding of how CCM effects continue into adulthood and affect PPR. We examined whether CCM is related to PPR via attachment in French-speaking adolescents and young adults. A sample of 427 individuals in a romantic relationship and another sample of 159 couples completed self-report measures. In both samples, a person's CCM was associated with their own lower PPR via their higher attachment anxiety and avoidance. In the dyadic sample, a person's CCM was associated with their partner's lower PPR via their own higher attachment anxiety. Attachment insecurities help understand the associations between CCM and PPR and may represent an important intervention target.