Risk and protective factors for sexual desire among women with children and their romantic partners

Romantic couples with children struggle to balance the needs of their romantic relationships with the responsibilities of parenting and mothers report difficulty viewing themselves as sexual beings after having children. Understanding the risk and protective factors for sexual and relational outcomes for couples with children or those that may have children in the future may provide insight into the dynamics of these couples and the ways in which parents can preserve relational health over time. The current study utilized Basson’s Model of Sexual Response (2000) as a conceptual theoretical framework and the Actor Partner Interdependence Model (APIM; Kenny et al., 2006) as an analytic framework for conducting couple-level research on sexual desire, sexual satisfaction, relationship satisfaction, sexual rewards and costs, and infidelity. The current study had the following four aims: 1) to develop and validate a reliable tool to measure individuals’ Attitudes Towards Mothers as Sexual Beings (ATMSB) in a sample of couples with and without children. 2) to assess differences in ATMSB and sexual/relational outcomes of ATMSB among couples with children and couples without children, 3) to examine the role of Adverse Childhood Experiences (ACEs) in influencing sexual and relational outcomes among couples with children, and 4) to investigate the impact of positive communication, partner appraisals, and sexual rewards and costs on sexual and relational outcomes among couples with children. The current study collected data from 294 individuals in mixed sex (one man and one woman) couples through an online questionnaire. In the first study, the ATMSBscale items were developed and an exploratory factor analysis was conducted yielding the following three scale factors: 1) Quality of Motherhood and Sexuality, 2) Mothers’ Sexual Functioning, 3) Mothers’ Sexual Pleasure and Enjoyment with high construct validity. A series of multiple linear regressions and structural equation models (SEM) were conducted predicting sexual desire, sexual satisfaction, relationship satisfaction, and desire discrepancies. Results indicated that ATMSB total scores and individual subscale scores predicted sexual satisfaction, relationship satisfaction, dyadic sexual desire and desire discrepancies with varying actor and partner effects among men and women with children and without children. These results indicated that when men and women endorse beliefs that mothers and sexuality are compatible, they have higher levels of sexual and relational health within the couple. Additionally, couples with children had more positive ATMSB overall and there were similarities and differences in the impact of ATMSB (and subscales) on sexual and relational outcomes between couples with children compared to those without children. In the second study, the impact of Adverse Childhood Experiences (ACE) score on sexual desire, desire discrepancies, sexual satisfaction, relationship satisfaction, sexual rewards and costs, and infidelity was measured among couples with children. A logistic regression and a series of multiple linear models were conducted with results indicating that for women, ACE score predicted the equality of sexual costs (EQcst). For men, higher ACE scores predicted a greater likelihood of engaging infidelity. Results from the SEM indicated that men’s ACE score predicted women’s sense of equality of sexual costs among partners (EQcst). These results indicate that ACE scores are associated with negative sexual and relational outcomes among couples with children. In the third study, the impact of positive communication, partner appraisal, and rewards and costs of the sexual relationship on sexual desire, desire discrepancies, sexual satisfaction, and relationship satisfaction was measured among couples with children. A series of multiple linear regressions and a SEM were conducted with results indicating that when individuals engage in more positive communication strategies, they have significantly higher levels of sexual satisfaction and relationship satisfaction as do their partners. More positive partner appraisals were associated with higher levels of relationship satisfaction for men and women and their partners. As a whole, a number of risk and protective factors were identified for sexual and romantic relationships among couples with children. Implications for future research, clinical work and health promotion programing targeting parents are discussed

PEEPS: A Relational Framework for Incorporating Resilience Into Community-Based Programming for Youth

Youth in communities across the world are exposed to adversity and trauma at high levels. In this article, we describe a research-informed, resilience-promoting framework that can be incorporated into a variety of touch points for youth (e.g., school, family, community, extra-curricular activities). The PEEPS Framework is relational in nature and includes the following five interconnected components: (a) positive adult relationships, (b) esteem, (c) empathy, (d) peer relationships, and (e) strengths-based approach. We outline the research that supports each component, describe how we are currently implementing the PEEPS framework in the form of a volunteer training, and offer research-based suggestions for implementation and tools that other professionals can utilize

Plant-symbiotic fungi as chemical engineers: multi-genome analysis of the Clavicipitaceae reveals dynamics of alkaloid Loci

The fungal family Clavicipitaceae includes plant symbionts and parasites that produce several psychoactive and bioprotective alkaloids. The family includes grass symbionts in the epichloae clade (Epichloë and Neotyphodium species), which are extraordinarily diverse both in their host interactions and in their alkaloid profiles. Epichloae produce alkaloids of four distinct classes, all of which deter insects, and some—including the infamous ergot alkaloids—have potent effects on mammals. The exceptional chemotypic diversity of the epichloae may relate to their broad range of host interactions, whereby some are pathogenic and contagious, others are mutualistic and vertically transmitted (seed-borne), and still others vary in pathogenic or mutualistic behavior. We profiled the alkaloids and sequenced the genomes of 10 epichloae, three ergot fungi (Claviceps species), a morning-glory symbiont (Periglandula ipomoeae), and a bamboo pathogen (Aciculosporium take), and compared the gene clusters for four classes of alkaloids. Results indicated a strong tendency for alkaloid loci to have conserved cores that specify the skeleton structures and peripheral genes that determine chemical variations that are known to affect their pharmacological specificities. Generally, gene locations in cluster peripheries positioned them near to transposon-derived, AT-rich repeat blocks, which were probably involved in gene losses, duplications, and neofunctionalizations. The alkaloid loci in the epichloae had unusual structures riddled with large, complex, and dynamic repeat blocks. This feature was not reflective of overall differences in repeat contents in the genomes, nor was it characteristic of most other specialized metabolism loci. The organization and dynamics of alkaloid loci and abundant repeat blocks in the epichloae suggested that these fungi are under selection for alkaloid diversification. We suggest that such selection is related to the variable life histories of the epichloae, their protective roles as symbionts, and their associations with the highly speciose and ecologically diverse cool-season grasses

Associations between daily positive communication and sexual desire and satisfaction: an approach utilizing traditional analyses and machine learning

oai:serval.unil.ch:BIB_2134DC5F820

Structures of the indole-diterpene biosynthesis loci (<i>IDT/LTM</i>) in sequenced genomes.

<p><i>IDT/LTM</i> genes are indicated by single letters, whereby <i>Q = idtQ</i> or <i>ltmQ</i> (in <i>E. festucae</i>), and so forth. Tracks from top to bottom of each map represent the following: genes, repeats, MITEs, and graphs of AT (red) and GC (blue) contents. Each gene is represented by a filled arrow indicating its direction of transcription. Closed circles indicate telomeres, and distances from the telomere on the <i>E. festucae</i> map are indicated in kilobasepairs (kb). Cyan bars representing repeat sequences are labeled with names or numbers to indicate relationships between repeats in the different species. Vertical bars beneath the repeat maps indicate MITEs. Genes for the first fully cyclized intermediate, paspaline, are indicated in blue, those for subsequent chemical decorations are shown in red, and <i>idt/ltmS</i>, with undetermined function, is in purple. Identifiable genes flanking the clusters are indicated in gray, and unfilled arrows indicate pseudogenes. The major pathway end-product for each strain is listed at the right of its map, abbreviated as indicated in <a href="http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1003323#pgen-1003323-g003" target="_blank">Figure 3</a>, and in bold for those confirmed in this study.</p

Phylogenies of <i>rpbA</i> from sequenced isolates and other Clavicipitaceae.

<p>The phylogenetic tree is based on nucleotide alignment for a portion of the RNA polymerase II largest subunit gene, <i>rpbA</i>. This tree is rooted with <i>Fusarium graminearum</i> as the outgroup. Epichloae are indicated in green, <i>Claviceps</i> species are indicated in blue, <i>Periglandula</i> species are indicated in red, and <i>Aciculosporium take</i> is in black. Species for which genomes were sequenced in this study are shown in bold type, and asterisks indicate plant-associated fungi. Alkaloids listed are the major pathway end-products predicted from the genome sequences, abbreviated as shown in <a href="http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1003323#pgen-1003323-g002" target="_blank">Figure 2</a>, <a href="http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1003323#pgen-1003323-g003" target="_blank">Figure 3</a>, <a href="http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1003323#pgen-1003323-g004" target="_blank">Figure 4</a>. Other abbreviations: (−) = some genes or remnants present, but not predicted to make alkaloids of this class, – = no genes present for this alkaloid class, EA = ergot alkaloids may be produced; IDT = indole-diterpenes may be produced, (ΔR*) = deletion of terminal reductase domain of <i>perA</i>.</p

Symbiosis of meadow fescue with <i>Epichloë festucae</i>, a heritable symbiont.

<p>Single optical slice confocal micrographs of <i>E. festucae</i> expressing enhanced cyan-fluorescent protein were overlain with DIC bright field images of (A) ovules (bar = 100 µm), (B) embryos (bar = 200 µm), and (C) shoot apical meristem and surrounding new leaves (bar = 200 µm). (D) Asymptomatic (left) and “choked” (right) inflorescences simultaneously produced on a single grass plant infected with a single <i>E. festucae</i> genotype. Vertical (seed) transmission of the symbiont occurs via the asymptomatic inflorescence, whereas the choked inflorescence bears the <i>E. festucae</i> fruiting structure (stroma), which produces sexually derived spores (ascospores) that mediate horizontal transmission.</p

Genic and repeat DNA contents of sequenced genomes.^a

a<p>Abbreviations: CDS = coding sequence, MT = mating type, non-Rpt-IG = nonrepetitive intergenic DNA, Rpt = repetitive DNA.</p>b<p>Based on total of contigs ≥500 bp. These sizes differ slightly from total scaffold lengths given in <a href="http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1003323#pgen-1003323-t001" target="_blank">Table 1</a> for <i>C. purpurea</i> 20.1, <i>E. festucae</i> E2368, and <i>E. festucae</i> Fl1.</p>c<p><i>C. fusiformis</i> PRL 1980 mating type genes include <i>mtBA</i> and <i>mtAC</i>. <i>P. ipomoeae</i> IasaF13 mating type genes <i>mtAA</i> and <i>mtAC</i> appear to have premature stop codons.</p>d<p>Statistics for <i>P. ipomoeae</i> are tentative because the assembly was filtered by selecting only contigs containing tBLASTx matches to genome sequences from the other Clavicipitaceae.</p

Alkaloid profiles of sequenced isolates.^a

a<p>Strains are abbreviated as follow: <i>Cpu</i> = <i>Claviceps purpurea</i> 20.1, <i>Cfu</i> = <i>C. fusiformis</i> PRL 1980, Cpa = <i>C. paspali</i> RRC-1481, <i>Eam</i> = <i>Epichloë amarillans</i> E57, <i>Ebe</i> = <i>E. brachyelytri</i> E4804, <i>Eel</i> = <i>E. elymi</i> E56, <i>Ef</i>1 = <i>E. festucae</i> Fl1, <i>Ef</i>2 = <i>E. festucae</i> E2368, <i>Egl</i> = <i>E. glyceriae</i> E2772, <i>Et</i>8 = <i>E. typhina</i> E8, <i>Et</i>5 = <i>E. typhina</i> E5819, <i>Nga</i> = <i>N. gansuense</i> E7080, <i>Ngi</i> = <i>N. gansuense</i> var. <i>inebrians</i> E818, <i>Nun</i> = <i>N. uncinatum</i> E167, <i>Pip</i> = <i>P. ipomoeae</i> IasaF13. Symbols: + = present, (+) = intermediate inferred to be synthesized because downstream product is present, − = not predicted and not detected, (−) = predicted but not detected, nt = predicted but not tested, ERA = ergotamine, ERB = ergobalansine, ERC = ergocryptine, ERV = ergovaline. Blank cells indicate compounds not predicted from genotype, and not tested.</p>b<p>Identification of IDT-436 and terpendoles E, I, J, K, M, M, and A are tentative because authentic standards are unavailable.</p