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AbstractThis systematic review examined the role of social environment in pre-death grief experiences of dementia caregivers. Ninety-three Chinese and English articles were included from a comprehensive search of empirical studies using nine databases. Six social environment domains were generated: the person with dementia, dyadic relationship, family members and the wider community, health and social care services, place of care, and social-cultural contexts. A complex interplay between caregivers and their social environments that aggravate and attenuate pre-death grief experiences is evident. Research has focused mainly on the effects of people with dementia and dyadic relationships and has paid modest attention to the effects of family, relatives, and health and social care services. Caregivers’ experiences with their friends, fellow caregivers, the wider community, and social-cultural norms are influential but understudied. Future research could adopt a systems thinking approach with sociological perspectives to generate a comprehensive and nuanced understanding of pre-death grief experiences. [ABSTRACT FROM AUTHOR]

In a widowed family, the surviving parent and children face the loss together. However, most previous research in bereavement has focused on individual experiences. Although the family perspective has been introduced into the field, neither theories nor empirical research has explored mutual interaction. Dyadic coping reflects the family perspective and has been proven to be an influential factor in couples facing life adversities. Nevertheless, it has not been explored in the context of bereavement-specific stressors, including loss- and restoration-related stressors, nor in the parent–child relationship. This research is the first exploration of parent–child dyadic coping in widowed families in the bereavement context and aims to form a comprehensive conceptualization of parent–child dyadic coping following bereavement. Qualitative semistructured interviews were conducted with 20 parents and children from widowed families in mainland China (11 surviving children and nine widowed parents, representing 19 families). Constructivist grounded theory was used to guide the analysis. The main themes identified were dyadic coping-related cognitions, loss-oriented dyadic coping, restoration-oriented dyadic coping, and contextual factors. Three foci (thou, we, and I) were identified for both loss- and restoration-oriented dyadic coping. A conceptualization model of bereavement dyadic coping within widowed families was developed. This study extends the single I-coping perspective in bereavement coping to a we-coping perspective, provides an interactional- and operational-level knowledge on dual-process coping, acknowledges the bilateral interaction in parent–child relationships, and offers implications for bereavement support practice for widowed families. [ABSTRACT FROM AUTHOR]

Background: Patients with terminal illnesses have different symptoms. The goal of palliative care is to alleviate the suffering induced by these symptoms. Available research on symptoms has focused on their prevalence or identification of clusters. Little is known about the central symptoms contributing to the maintenance of the whole system of symptoms or the mechanism of influence between symptoms, particularly between physical and psychosocial symptoms. Aim: The study used network analysis to explore symptom clusters among patients with terminal illnesses and identify the central symptoms, the bridge symptoms, and pathways between physical and psychosocial symptoms. Design and Setting/Participants: This is a retrospective cohort study using baseline symptom assessment of 677 adults with terminal illnesses receiving care from the Integrated Community End-of-Life Care Support Teams. Results: Three symptom clusters were identified: physical, psychological, and practical clusters. "Weakness or lack of energy" was identified as the crucial symptom affecting the changes of other symptoms, followed by depression and anxiety. Three connections between the psychological and physical symptoms were identified: anxiety-pain, depression-constipation, and perceived family anxiety-poor appetite pathways. Pathways of practical concern-peace and practical concern-depression were indicated between practical and psychological symptoms. Conclusions: This study is the first of its kind to investigate the connections and mechanism of influence between symptoms among patients with terminal illnesses. It offers clear pathways for intervention with the most influential symptoms of weakness, anxiety, and depression. [ABSTRACT FROM AUTHOR]

The death of a family member affects not only individual family members but also their relationships and interactions. Grief has been studied mostly as an intrapersonal experience. Adopting the family perspective, this systematic scoping review focused on parent–child relationships in widowed families so as to identify what is already known on this topic and the research gaps for future study. The review follows the Preferred Reporting Items for Systematic Reviews and Meta‐Analyses extension for Scoping Reviews (PRISMA‐ScR) guidelines. Four databases (Web of Science, Psycinfo, PubMed, and CINAHL Plus) were searched. Search terms were combinations of two concepts: (1) loss of a parent (20 terms) and (2) parent–child (eight terms). 5,419 studies were identified during the search, of which 36 studies were included in the review following two rounds of screening. Four research themes emerged, and the aggregated findings were identified: (a) The surviving parent and children are likely to become closer following the loss of a parent, while other relevant factors need to be taken into account; (b) Better parent–child relationships play a protective role in children's adjustment to loss; (c) The surviving parent and children's adjustment to loss are interdependent; (d) Through parenting, communication style, coping strategy, and other attributes, the surviving parent can influence their children's adjustment. Gender and age differences were identified in parent–child relationships. The findings further justify the importance of a family perspective when conducting research and practice on bereavement. Several research gaps were identified. Existing studies paid insufficient attention to children's agency and bidirectional relationships, and the interaction process and its role underlying parent–child bidirectional causality. A conceptual framework of parent–child relationships in widowed families is proposed based on these findings. [ABSTRACT FROM AUTHOR]

Background: Delivery of community-based end-of-life care for patients and family members has been recognized as an important public health care approach. Despite differences in different healthcare settings and the significance of a person-centered approach, little research has investigated facilitators of community-based end-of-life care from the perspective of service recipients. In particular, there has been limited exploration of strategies to ensure positive outcomes at an operational level. Aim: To explore factors facilitating positive end-of-life care provision in community-based settings and how these are achieved in practice, from the perspectives of patients and family caregivers. Design: A qualitative cross-sectional descriptive study was undertaken through semi-structured interviews with patients and family caregivers subjected to thematic analysis. Setting/participants: Ten patients and 16 family caregivers were recruited from an end-of-life community care program provided by four non-governmental organizations in Hong Kong. Results: Seven core themes were identified: positive emotions about the relationship, positive appraisals of the relationship, care through inquiring about recipients' circumstances, instrumentality of care (i.e. information, coaching on care, practical help, psychological support, multiple activities), comprehensiveness of care (i.e. diversity, post-death care, family-level wellbeing), structure of care (i.e. timely follow-up, well-developed system), and qualities of workers. Conclusions: Improvement in service quality might be achieved through alternating the perceptions or emotional reactions of care recipients toward care providers and increased use of sensitive inquiry. Comprehensive care and positive outcomes might be facilitated by addressing the dualities of care by providing diverse choices in pre-death and post-death care. [ABSTRACT FROM AUTHOR]

Mungbean (Vigna radiata L.) is a fast-growing warm-season legume crop widely distributed in Asia. A large amount of self-shading of mungbean plants could reduce its seed yield. Thus, modification of the leaflet type could affect the leaf canopy and improve yield. In this study, a classical locus, lobed leaflet margins (lma) in mungbean, was investigated, which was controlled by a semi-dominant allele. In order to map the lma, the whole genomes of AL127 carrying lma and another accession Sulu with oval leaflets were re-sequenced; 236,998 single nucleotide polymorphisms and 8896 insertion/deletions (InDels) were identified between the two accessions. Using the validated InDels and SNP markers, lma was mapped to a syntenic region about 376 kb on chromosome 3 in mungbean and on chromosome 1 in common bean, respectively. Our results provided a framework for map-based gene cloning in mungbean. Cloning the lma should shed light on the underlying molecular mechanism controlling leaf shape in legumes and further provide the molecular basis for genetic improvement on legume crops. [ABSTRACT FROM AUTHOR]

The meaning of patient deaths is key to understanding professional bereavement. To validate its construct, we applied partial least square structural equation modeling (PLS-SEM) to online survey data from 563 Chinese physicians and nurses. Both the personal meaning and professional meaning contribute significantly while not interchangeably to the meaning of patient deaths. In addition to the loss of an acquaintance, the loss of a valuable life, and the loss of a professional goal, patient deaths can also mean trauma, bad luck, identity crisis, a warning, a learning opportunity, and a time to empathize with others' sufferings. [ABSTRACT FROM AUTHOR]

Hong Kong experienced the SARS pandemic in 2003. Seventeen years later, the Covid-19 pandemic now challenges Hong Kong and the world. This study aims to unveil the impact of the pandemic on health social workers. One hundred and sixty-six health care social workers in Hong Kong were recruited to join a cross-sectional online survey from November 2020 to March 2021. This paper includes the analysis of the demographic information, fear of contamination, resilience, perceived social support and physical health only. Irrespective of the demographic background, the level of fear of contamination, resilience, perceived social support and physical health were similar. The mean scores of the two dimensions of fear of contamination (Harm avoidance: m = 7.49, s.d. = 3.25; Disgust avoidance: m = 7.75, s.d. = 2.90) were higher than those of general public and clinical samples with Obsessive-Compulsive Disorder. No moderation effects were found in resilience and perceived social support in the relationship of fear of contamination and physical health. Instead, direct effects were shown.The impact of the pandemic on health social workers was universal. Psychoeducational programs to alleviate the fear of contamination and organizational-level interventions to improve workplace social support are highly needed. [ABSTRACT FROM AUTHOR]

Grief‐related beliefs play an important role in bereavement adjustment. This study aimed to investigate the patterns and correlates of grief‐related beliefs among recently bereaved adults (n = 311). Latent class analysis results suggested three meaningful grief belief classes could be identified: the High grief belief class (24.1%), Predominantly counterfactual thoughts class (42.4%), and Low belief class (33.4%). Members in the High grief belief class reported the highest levels of grief symptoms, depression and PTSD symptoms, loneliness, and functional impairment. Compared with the Low belief class, unmarried people, people in poor health, individuals who lost parents, partners, or children, and those who experienced violent or unexpected death were more likely to belong to the High grief belief class. Findings of this study support the importance of examining grief‐related cognitions in research and clinical practice, especially counterfactual thoughts about the death, which may need to be specifically screened and targeted in treatment. [ABSTRACT FROM AUTHOR]

Bereavement during the COVID‐19 pandemic may have some unique characteristics that become potential risk factors (e.g., absence of grief rituals, no opportunity to say goodbye to the deceased and loneliness caused by social distancing) for acute grief. Avoidance processes could be significant mediators in the context of the pandemic. The current study aimed to investigate whether and how these COVID‐19‐related risk factors were related to acute grief severity. Bereaved adults (n = 319) who lost significant others during the COVID‐19 pandemic completed a self‐report questionnaire package measuring COVID‐19‐related factors, grief severity and depressive and anxious avoidance. Regression analyses suggested that among the three potential risk factors (loneliness, grief rituals and opportunity to say goodbye), loneliness was significantly associated with acute grief after controlling for basic demographic and loss‐related information. Structural equation models suggested that depressive avoidance and anxious avoidance partially mediated the associations of loneliness with acute grief severity. The findings indicate that dealing with loss during the COVID‐19 pandemic warrants further exploration concerning how potential environmental risk factors may impede adaptation to loss. Depressive and anxious avoidance processes may play important roles in grief interventions for isolated and lonely bereaved people. [ABSTRACT FROM AUTHOR]

The outbreak of the COVID-19 pandemic brought new challenges to mourning and growth of bereaved. The purpose is to explore the relationship between the prolonged grief (PG) symptoms and the post-traumatic growth (PTG) of recently bereaved people during the COVID-19 period, and the mediating role of meaning making. 305 participants were recruited to complete the Posttraumatic Growth Inventory, Inventory of Complicated Grief, and Integration of Stressful Life Experiences Scale. Hierarchical multiple regression analyses and Medcurve in SPSS were adapted to test the hypotheses. The results revealed that there was a curvilinear relationship between PG and PTG and meaning making had a completely mediating effect on this relationship. Different intervention goals - whether alleviating distress or cultivating growth – should be set up according to the level of grief for recently bereaved individuals during COVID-19. More attention should be paid to the role of meaning making in the future clinical practice. [ABSTRACT FROM AUTHOR]

Background: The interaction among plants and their pollinators has been a major factor which enriched floral traits known as pollination syndromes and promoted the diversification of flowering plants. One of the bee-pollination syndromes in Faboideae with keel blossoms is the formation of a landing platform by wing and keel petals. However, the molecular mechanisms of elaborating a keel blossom remain unclear. Results: By performing large scale mutagenesis, we isolated and characterized a mutant in Vigna radiata, love on wings (low), which shows developmental defects in petal asymmetry and vasculature, leading to a failure in landing platform formation. We cloned the locus through map-based cloning together with RNA-sequencing (RNA-seq) analysis. We found that LOW encoded a nucleus-localized Dof-like protein and was expressed in the flower provascular and vascular tissues. A single copy of LOW was detected in legumes, in contrast with other taxa where there seems to be at least 2 copies. Thirty one Dof proteins have been identified from the V. radiata's genome, which can be further divided into four Major Cluster of Orthologous Groups (MCOGs). We also showed that ectopic expression of LOW in Arabidopsis driven by its native promoter caused changes in petal vasculature pattern. Conclusions: To summarize, our study isolated a legume Dof-like factor LOW from V. radiata, which affects vasculature development in this species and this change can, in turn, impact petal development and overall morphology of keel blossom. [ABSTRACT FROM AUTHOR]

An orchid flower exhibits a zygomorphic corolla with a well-differentiated labellum. In Cymbidium sinense, many varieties with peloric or pseudopeloric flowers have been bred during centuries of domestication. However, little is known about the molecular basis controlling orchid floral zygomorphy and the origin of these varieties. Here, we studied the floral morphogenesis of C. sinense and transcriptome-wide enriched differentially expressed genes among different varieties. The floral zygomorphy of C. sinense is established in the early developmental process. Out of 27 MIKCC-MADS factors, we found two homeotic MADS genes whose expression was down-regulated in peloric varieties but up-regulated in pseudopeloric varieties. CsAP3-2 expressed in the inner floral organs co-operates with a labellum-specific factor CsAGL6-2, asymmetrically promoting the differentiation of inner tepals. Interestingly, we detected exon deletions on CsAP3-2 in peloric varieties, indicating that loss of B-function results in the origin of peloria. Additional petaloid structures developed when we ectopically expressed these genes in Arabidopsis, suggesting their roles in floral morphogenesis. These findings indicate that the interplay among MADS factors would be crucial for orchid floral zygomorphy, and mutations in these factors may have maintained during artificial selection. [ABSTRACT FROM AUTHOR]

The diverse pigmentation patterns of flower corollas probably result from pollinator-mediated selection. Previous studies demonstrated that R2R3- MYB factors may have been recruited in the regulation of corolla pigmentation. However, how R2R3-MYBs became so diverse in their regulation of different pigmentation patterns remains unclear., Here, we studied a Lamiales species, Torenia fournieri, which has elaborate zygomorphic flowers with dorsal-ventral asymmetries in corolla pigmentation. We found recent gene duplication events in CYCLOIDEA-like ( CYC-like) and RADIALIS-like ( RAD-like) genes, and functionally analyzed three dorsal-specific expression factors: Tf CYC1, Tf CYC2, and Tf RAD1., We found that the CYC- RAD module coordinates petal shape and corolla pigmentation, as ectopic expression of Tf CYC2 or Tf RAD1 disrupted the asymmetric corolla pigmentation pattern and produced strongly dorsalized flowers. Dorsal petal identity was lost when Tf CYC2 was down-regulated or when Tf RAD1 was knocked out. In T. fournieri, the diversified CYC and RAD genes have evolved regulatory loops, and Tf CYC2 binds directly to the regulatory regions of an R2R3- MYB factor gene, Tf MYB1, which might lead to its asymmetric expression and ultimately establish the asymmetric pigmentation pattern., These findings support the existence of a regulatory module that integrates dorsal-ventral patterning and asymmetric corolla pigmentation in T. fournieri. [ABSTRACT FROM AUTHOR]

In contrast to typical radially symmetrical flowers, zygomorphic flowers, such as those produced by pea (Pisum sativum L.), have bilateral symmetry, manifesting dorsoventral (DV) and organ internal (IN) asymmetry. However, the molecular mechanism controlling IN asymmetry remains largely unclear. Here, we used a comparative mapping approach to clone SYMMETRIC PETALS 1 (SYP1), which encodes a key regulator of floral organ internal asymmetry. Phylogenetic analysis showed that SYP1 is an ortholog of Arabidopsis thaliana LIGHT-DEPENDENT SHORT HYPOCOTYL 3 (LSH3), an ALOG (Arabidopsis LSH1 and Oryza G1) family transcription factor. Genetic analysis and physical interaction assays showed that COCHLEATA (COCH, Arabidopsis BLADE-ON-PETIOLE ortholog), a known regulator of compound leaf and nodule identity in pea, is involved in organ internal asymmetry and interacts with SYP1. COCH and SYP1 had similar expression patterns and COCH and SYP1 target to the nucleus. Furthermore, our results suggested that COCH represses the 26S proteasome-mediated degradation of SYP1 and regulates its abundance. Our study suggested that the COCH-SYP1 module plays a pivotal role in floral organ internal asymmetry development in legumes. [ABSTRACT FROM AUTHOR]