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At least 19 recordsLinked to original sources
PubMed2025

Parent-Child Communication after Parental Exposure to Potentially Traumatic Events: A Systematic Review.

Intergenerational traumatization poses a risk for the well-being of children whose parents have been exposed to potentially traumatic events (PTEs). Previous research has implied that parent-child communication may significantly contribute to the transmission of trauma across generations, but findings remain limited and inconclusive, particularly regarding the mechanisms and factors that could underlie this process. Therefore, the present paper performed a mixed methods systematic literature review to methodically map how PTE-exposed parents communicate with their children-both in general and about parental PTEs-and how such communication may contribute to trauma transmission. Five electronic databases were accessed to conduct keyword-led searches, yielding a final inclusion of 31 peer-reviewed, empirical studies that investigated parent-child communication among PTE-exposed parents and/or their nonexposed children. Parental PTE exposure was found to have a negative impact on general parent-child communication, often due to the presence of parental anger, irritability, and withdrawal. Conversations about parental PTEs showed substantial diversity in their frequency, content and style, with strategies of partial/modulated disclosure appearing most common. How parents approached PTE communication frequently stemmed from a desire to keep their children safe and unburdened by their previous experiences. Finally, both general communication and PTE communication were implied to contribute to trauma transmission, revealing a significant impact of parent-child communication on child functioning, identity, and well-being. Based on these key findings, the authors discuss meaningful implications for future research (i.e., prospective directions, addressing methodological concerns) and formulate suggestions for clinicians and policymakers surrounding the treatment of PTE-exposed parents and their offspring.

Humans↗
PubMed1976

Parent-to-child and child-to-parent kidney transplants. Experience with 101 transplants at one centre.

101 first transplants were done in patients with end-stage renal disease using kidneys from parents or offspring. All patients were followed up for at least two years, and the absolute two-year patient-survival rate was 88% and the two-year functional-kidney rate was 79%. Actuarial statistics at four years were 82% for survival and 67% for function in the parent-to-child group. In the child-to-parent group absolute patient survival was 83% and transplant function was 79% at two years; these results were unchanged at four years. Thus, transplants from parents to children or from children to parents are much the same despite differences in age. There is some advantage in parent-to-child transplants from being female but no advantage in being diabetic, receiving higher or lower doses of antilymphocyte globulin, or sharing more than two HLA antigens with the donor. Mismatched sibling transplants survived approximately as well as did grafts from parents to children and children to parents. These results, taken in concert with the poor results of cadaver transplantation, the relative safety of donation, the high personal motivation to donate in these groups, and the personal satisfaction derived by the donor, strongly support the policy of informing potential recipients of the benefits of parental or offspring kidney donation.

Adolescent↗
PubMed1976

Hybrid-versus-parental strain reaction. III. Comparative mortality in parental strain mice of the H-2k genotype.

Lethally irradiated parental strain male and female mice were inoculated with marrow from reciprocal hybrid donors of the same sex. Hybrid cells homozygous for the H-2k genotype could recognize the quantitatively greater antigenicity of the parental strain CBA male recipients only. The more severe reaction occurred when the maternal strain of the hybrid donor was allogeneic to the recipient, which indicates the maternal effect on the antigen recognition system. This demonstration of a maternal influence on the expression of paternally derived tissue antigens made it possible to attribute the secondary disease syndrome to a hybrid-versus-parental strain reaction. The apparent differences in mortality between male and female recipients could not be attributable to X or Y chromosome disparity without additional transfers of appropriate marrow from males to females and females to males. In all cases, the parental strain-versus-hybrid reaction resulted in greater mortality than that observed in the hybrid-versus-parental strain reaction.

Animals↗
PubMed1979

[Methodology of parent group therapy (experiences with a social training program for parents of children and adolescents requiring psychotherapy)].

An analysis is made of the socio-psychological status of parents and their problems with regard to intrafamiliar social behavior, and then the aims of parent groups are defined. This is followed by a critical assessment of such methods as information groups, conventional training groups and dynamic group psychotherapy, all of which are unsuitable for this population. Then follows a discussion of the experience gained and results achieved, with a social training program for parents of children needing psychotherapy, where the disturbance in the child is an expression of family-neurotic disturbances. The accent is on the formation of motivations, sensitization to emotional signals, self-experience, feedback exercises and the mastering of partner-oriented conflict management behavior. The aim is to resolve neurotic family arrangements, so that the child is no more needed as a carrier of symptoms. The new attitudes and conflict management behavior should also be available in genuine educational situations. During the third phase of the program of exercises which consists of three parts, concrete problem situations are dealt within psychodramatic manner. As a conclusion special requirements for leading such groups are discussed with a view to therapists treating parents and children at the same time.

Adolescent↗
PubMed1975

Hybrid-versus-parental strain reaction. I. Comparative mortality in allogenetic and parental strain male and female mice.

Lethally irradiated male and female hybrids, parental strains, and the third party strain A mice were inoculated with reciprocal hybrid marrow from donors of the same sex. A graft-versus-host reaction was produced against H-Y antigens of reciprocal hybrids. Although the late mortality in inbred strain males was generally greater than that of females, without further tests this difference was not automatically attributable to an X or a Y chromosome disparity. Hybrids did not recognize the qualitative difference in antigenicity of their reciprocals, but they were able to recognize the quantitatively greater antigenicity of their parental strains, and a hybrid-versus-parental strain reaction occurred. The graft-versus-host reaction in the third party strain A mice was significantly more severe than that produced by hybrid marrow in their reciprocal hybrid recipients, but significantly less severe than that produced in the parental strains. The relationship between antigenicity and responsiveness was such that the severity of the graft-versus-host reactions masked the maternal influences observed with other reciprocal hybrids.

Animals↗
PubMed1979

The questionnaire to parents of children with the Down syndrome: how to inform the parents and psychological responses to counseling.

This study determined the experience of 137 sets of parents when they were informed that their child had Down syndrome and how they would have preferred this matter to have been handled. The survey revealed that the majority of parents would have preferred being told as soon as possible, with both of them present, and that they had suspected something wrong at the birth of the child. This information prompted us to analyze critically the parental experiences and to formulate a positive approach, with sensitive, supportive, and progressive counseling.

Adaptation, Psychological↗
PubMed2026

Parent-of-origin specific allelic expression in outbreeding Arabidopsis arenosa identifies antagonistic parental enrichment in protein degradation pathways.

In plants, the epigenetic phenomenon of parent-of-origin allele-specific expression occurs mainly in the triploid endosperm. Although well studied in inbreeding Arabidopsis thaliana, genomic imprinting has been less investigated in outcrossers. In order to investigate a wider role of parental-specific allelic expression, we have analyzed imprinting in whole seeds of the obligate outbreeder Arabidopsis arenosa. High-throughput analysis of imprinting in outbreeding species is hampered by the lack of reference genomes and available sequenced accessions. High degree of allelic variation in outbreeding species may also limit the analysis to loci with less variation. We developed a reference-independent pipeline to detect parental-specific reads. Using different accessions in reciprocal crosses, we detected more than 70 paternally biased imprinted genes and > 500 maternally biased genes. Paternally biased genes showed major enrichment for proteins with ubiquitin protein transferase and ligase activity. Maternally biased genes were enriched for protein pathways directly counteracting paternally enriched genes. Here, we demonstrate an alignment-free protocol to identify imprinted genes that may be successfully applied for imprinting studies in other highly heterozygous outcrossing species. Our results suggest a unique role of genomic imprinting affecting post-transcriptional gene regulation in outbreeding A. arenosa.

Arabidopsis arenosa↗
PubMed2026

A Multimethod Evaluation to Assess Feasibility, Acceptability, and Preliminary Efficacy of HPVVaxFacts, a Tailored Mobile Web App, for Parents With Unvaccinated Children: Pilot 2-Arm Randomized Controlled Trial.

BACKGROUND: Mobile health (mHealth) interventions may improve provider-parent communication on human papillomavirus (HPV) vaccination to reduce concerns, and increase intention and uptake. HPVVaxFacts (233 Analytics) is a novel, mobile web app delivering tailored education based on the Health Belief Model and Theory of Reasoned Action, addressing parental concerns preclinic visit. OBJECTIVE: This study aimed to assess the feasibility, acceptability, and preliminary efficacy of HPVVaxFacts among parents of adolescents aged 9-17 years. METHODS: We conducted a pilot, randomized controlled trial in 2 urban Tennessee clinics from June to September 2023 comparing 2 groups: tailored education via HPVVaxFacts mobile web app (intervention, n=27), and nutrition education (attention control, n=30). Eligible parents had or were caregivers to a child aged 9 to 17 years unvaccinated against HPV, had a mobile phone, had an upcoming clinic visit, and spoke English. The recruitment strategy was patient intake software-Phreesia (Phreesia, Inc) and eClinicalWorks (eClinicalWorks). Although unblinded, parents could deduce their study arm assignment. Providers were blinded. Feasibility, acceptability, and preliminary efficacy (HPV vaccine knowledge, concerns, intentions, and vaccination rates) were assessed using multimethod evaluation. Parents were assessed at baseline and immediately post intervention via surveys. Vaccination rates were assessed at 12 months post intervention via electronic health records. Nineteen parent interviews were conducted up to 9 months post intervention. A clinic staff consultation (n=6) was 1 month post intervention. RESULTS: Of 57 enrolled parents, most were female (52/57, 91%), non-Hispanic White (44/57, 77%), had ≤US $80,000 household income (32/57, 56%), and had some college or less (27/57, 47%). In total, 81% (29/36) of parents viewed HPVVaxFacts. Post intervention, HPV vaccine initiation was higher in the intervention group compared to the attention control group (48% vs 17%; difference 0.24; 95% CI 0.03-0.46; P=.01). Parents in the HPVVaxFacts arm demonstrated a greater reduction in knowledge (ie, knowledge increase; mean change: -0.6 vs 0.1) and concern scores (mean change: -3.4 vs -1.4) than those in the nutrition education arm. However, between-arm differences were not statistically significant (P=.13 and P=.14, respectively). The majority found the study protocol and HPVVaxFacts acceptable. Benefits of HPVVaxFacts include confirming their decision to vaccinate, supporting parent-child discussion on the vaccine, and answering questions preclinic visit or offering questions for the provider. Study protocol delivery and mobile web app instructions were suggested areas for improvement. Barriers for HPVVaxFacts use include content in English only and digital format. CONCLUSIONS: Our study suggests HPVVaxFacts was feasible and acceptable among parents to provide previsit, tailored information on HPV vaccination. Outcomes offer a positive trajectory but need more exploration. Next steps include a well-powered efficacy trial to determine the impact of HPVVaxFacts on initiation vaccine rates and parental hesitancy factors, as well as to explore an interaction, effect modification, and mediation among different variables.

Humans↗
PubMed2026

Trade-offs in avian parental care: a review of theory and meta-analysis of brood size manipulations.

The selective forces shaping parental care have been studied for over 50 years. While theoretical and experimental work has yielded qualitative progress, the large body of empirical work testing predictions about parental investment based on life-history trade-offs has yet to be synthesized. We first provide an overview of the core life-history theory exploring how selection might shape parental care. We then conduct a systematic review and meta-analysis on studies that experimentally manipulated brood size in birds, a widely used experimental approach to manipulate parental investment. We extracted 313 estimates from 62 studies representing 31 species of birds from 19 different families and tested key predictions on trade-offs in parental care derived from theory. Our analysis provides strong support for some predictions about life-history trade-offs in parental care, but weak or equivocal support for others. Specifically, we found that overall, avian parents respond to brood size manipulations as predicted by life-history theory: they increased care in response to brood enlargement, and decreased care in response to brood reductions. Furthermore, for the same relative manipulation size, responses to brood reductions were greater than responses to brood enlargements. This finding is consistent with predictions derived from life-history theory based on some types of non-linear utility curves. However, many predictions derived from theory are not well supported by our comparative analysis. Species' life-history traits such as clutch size (a measure of current reproduction), adult survival, and broods per year (two measures of future reproduction), explained little, if any, among-species variation in response to brood size manipulations. Several factors may explain this. We highlight that brood size manipulations may affect more than just perception of the value of current reproduction, such as altering parents' perception of predation risk. Importantly, these unintended consequences could lead to asymmetric responses like those we observed. Other common experimental approaches - such as hormone manipulations, altering a partner's effort, and food supplementation - often affect multiple traits or fitness components simultaneously, or may involve cues that poorly match the evolved mechanisms guiding parental behaviour. Our review of both theory and experimental approaches suggests that there are multiple opportunities for more precise experiments. We offer several recommendations for effective designs. One is improved understanding of the biology underlying the functions relating to costs and benefits, with careful consideration of not only how the manipulation will affect only one of those, but also the mechanisms that might alter how parents perceive the manipulation. We also emphasize general principles, such as assessing alternative hypotheses and devising multiple independent tests. Armed with these recommendations, we believe there are new opportunities to increase the strength of inference achieved from studies aimed at understanding the trade-offs affecting the evolution of parental care.

Animals↗
PubMed2026

Parental senescence effects in a short-lived fish.

Senescence is age-related decline that may carry over to subsequent generations. Advanced parental age can both improve or reduce offspring fitness, however. Identification of mechanisms of parental effects senescence thus proved challenging so far. We investigated the effects of old parental age on offspring performance in a laboratory short-lived fish, Nothobranchius furzeri (Cyprinodontiformes). We followed age-related changes in parents and then focused on the effect of parental age on key offspring life-history traits (embryonic survival, hatching rate and juvenile growth). We employed telomere length as a senescence marker and a potential route for transmitting senescence effects from parents to the offspring. As parents aged, their body condition, reproductive output, and telomere length declined. Offspring of older parents showed lower survival and hatching rate. In contrast, old parental age did not compromise juvenile growth and telomere length of the successfully hatched offspring. This, among other things, resulted in decoupling of parent-offspring telomere length. Our study highlights the sensitivity of the early life-stages to old parental age in contrast to offspring post-hatching performance.

Nothobranchius↗
PubMed2025

Genomic sequencing in diverse and underserved pediatric populations: Parent perspectives on understanding, uncertainty, psychosocial impact, and personal utility of results.

PURPOSE: Limited evidence evaluates parents' perceptions of their child's clinical genome-scale sequencing (GS) results, particularly among individuals from medically underserved groups. Five Clinical Sequencing Evidence-Generating Research consortium studies performed GS in children with suspected genetic conditions with high proportions of individuals from underserved groups to address this evidence gap. METHODS: Parents completed surveys of perceived understanding, personal utility, and test-related distress after GS result disclosure. We assessed outcomes' associations with child- and parent-related factors: child age; type of GS finding; and parent health literacy, numeracy, and education. RESULTS: A total of 1763 parents completed surveys; 83% met "underserved" criteria based on race, ethnicity, and risk factors for barriers to access. We observed high perceived understanding and personal utility and low test-related distress. Outcomes were associated with the type of GS finding; parents of children with a pathogenic or likely pathogenic finding endorsed higher personal utility and more test-related distress than those whose children had a variant of uncertain significance or normal finding. Personal utility was higher in parents who met the criteria for "underserved." CONCLUSION: Our findings shed light on correlates of parents' cognitive and emotional responses to their child's GS findings and emphasize the need for tailored support in disclosure discussions.

Humans↗
PubMed2026

Parental niche construction buffers microbial and competitive challenges and drives offspring dependence in burying beetles.

Parents across diverse taxa modify the biotic or abiotic environments of their offspring. Such modifications may constitute ecological inheritance and are central to developmental niche construction, whereby organisms shape developmental conditions and selective pressures experienced by the next generation. Despite its theoretical importance, parental niche construction is often studied under simplified conditions or by focusing on single components of care, limiting our understanding of how multiple parental modifications interact in ecologically relevant contexts, whether they buffer environmental heterogeneity, and how this shapes offspring development and evolutionary trajectories. Using the burying beetle Nicrophorus vespilloides, we investigated how parents jointly modify chemical and microbial properties of vertebrate carcasses, a highly contested resource on which offspring develop. We show that under natural microbial and competitive conditions, prehatch care enhances larval survival and growth, alters cadaveric volatile emissions, and reduces carcass attractiveness to competitors. While soil type shapes carcass-associated microbial communities, parental care buffers these environmental effects, creating a more consistent microbiome and reducing environmentally induced larval mortality. Larvae of the related species Ptomascopus morio, which lacks prehatch carcass preparation, survived equally well on prepared and unmodified carcasses, whereas N. vespilloides larvae showed reduced survival on unmodified carcasses. This contrast is consistent with the hypothesis that N. vespilloides larvae have evolved a reliance on a parentally constructed developmental environment. Together, these findings show that parental care can constitute an integrated form of niche construction that reshapes developmental environments, enhances offspring performance, and may promote evolutionary feedback leading to increased offspring dependence on parental care.

Animals↗
PubMed2026

Effects of Family-Based Intervention for Childhood Obesity on Parental and Offspring Outcomes: A Systematic Review and Meta-Analysis.

BACKGROUND AND OBJECTIVES: Childhood obesity is a global public health issue with strong familial and intergenerational transmission. However, existing syntheses often overlook the active role of parents and fail to assess outcomes beyond the child. This systematic review and meta-analysis specifically investigate the effects of family-based interventions, which position parents as active co-agents of change, on health outcomes for both children with obesity and their parents. METHODS: A systematic review and meta-analysis were conducted. Six databases were searched for randomized controlled trials (RCTs) targeting children with obesity and at least one family member. Primary outcomes were children's BMI z-score and parental BMI; secondary outcomes included other adiposity measures and dietary behaviors. Outcomes for both children and parents were synthesized. Subgroup analyses were conducted based on intervention characteristics. Risk of bias was assessed using RoB 2, and evidence certainty was evaluated using GRADE. RESULTS: Twenty RCTs with 1740 participants were included in the meta-analysis. The interventions demonstrated a significant reduction in children's BMI z-score. Additional benefits were observed for long-term BMI z-score and percentage of total body fat. The most effective interventions commonly integrate health education, behavioral strategies, and motivational support. Subgroup analyses indicated that interventions positioning parents as active co-participants, rather than mere supporters, yielded larger effects. However, no significant effects were found on parental BMI. CONCLUSION: This study demonstrates that family-based interventions can confer significant benefits for children with obesity. Their success hinges on strategically framing parents as active co-agents and integrating motivational strategies.

Humans↗
PubMed1976

Distribution of envelope-specific and sarcoma-specific nucleotide sequences from different parents in the RNAs of avian tumor virus recombinants.

The distribution of leukosis-virus- and sarcoma-virus-specific oligonucleotide sequences was investigated in the RNAs of viral recombinants selected for an envelope gene (env) from a leukosis parent and a sarcoma gene (src) from a sarcoma parent. For this purpose 20 to 30 RNase-T1-resistant oligonucleotides were chemically analyzed and mapped within the 10,000 nucleotides of each viral RNA relative to the 3'-poly(A) end. The resulting oligonucleotide maps were compared. Proceeding from the 3' to the 5' end, the maps of four recombinants contained: (i) in a segment of 2000 nucleotides, three to four src-specific oligonucleotides, so identified because they were shared only with the sarcoma parent; and (ii) in a segment of 8000 nucleotides, 20 oligonucleotides shared with the leukosis parent, of which six to seven were also shared with the sarcoma parent. Two other recombinants contained: (1) in a segment of 2000 (one) or 3000 (the other) nucleotides, three src-specific oligonucleotides; (ii) in a segment of 3000 (one) or 2000 (the other) nucleotides, five (one) or four (the other) oligonucleotides, all or some of which are env-specific, because they were shared with the leukosis parent; (iii) in a segment of 5000 nucleotides (both), 11 functionally unidentified sarcoma-virus-derived oligonucleotides, of which seven were also shared with the leukosis parent. The map locations of parental oligonucleotides were not changed in recombinants and all viral strains tested shared six to eight highly conserved oligonucleotides at equivalent map locations. The partial map -env-src-poly(A) emerged from the analyses of these recombinants.

Alpharetrovirus↗
PubMed1975

Repair methylation of parental DNA in synchronized cultures of Novikoff hepatoma cells.

Parental and filial DNA strands were isolated from a Novikoff rat hepatoma cell line, synchronized by S-phase arrest with excess thymidine, that had completed up to one round of DNA replication in the presence of (14-C-methyl)methionine and (6-3-H) bromodeoxyuridine. Both strands were methylated, the proportion of total methyl label in parental DNA increasing slightly with time in S-phase. The studies were repeated with (14-C-methyl)methionine and (3-H)deoxycytidine to determine if parental methylation occurred on extant or repair-inserted cytosine residues. Both (14-C) and (3-H) were found in parental DNA. The (14-C)/(3-H) ration of parental DNA-5-methylcytosine was about twice that in filial DNA while the (3-H) data showed twice the concentration of 5-methylcytosine in parental compared to filial DNA. Thus parental methylation occurred on repair-inserted cytosine residues and resulted in overmethylation. That the DNA damage and repair was due to 5-phase arrest was shown by repeating the studies using a sequential mitotic-G1 arrest method. With this method little (14-C) or (3-H) was found in parental DNA. We conclude that S-phase arrest leads to DNA damage and repair with subsequent overmethylation of repair-inserted cytosines; that sequential mitotic-G1 arrest minimizes DNA damage; and, that the latter technique, suitable for synchronization of large quantities of cells, may prove useful in relatively artifact-free studies of eukaryotic DNA replication.

Animals↗