Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 37
Filtrar
1.
Behav Cogn Psychother ; : 1-15, 2024 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-38679952

RESUMO

BACKGROUND: Cognitive models of mental contamination (i.e. feelings of internal dirtiness without contact with a contaminant) propose that these feelings arise when individuals misappraise a violation. However, an operational definition of 'violation' and identification of specific violation misappraisals is limited. AIMS: This study's aim was to elaborate on cognitive models using qualitative data from those with lived experience to fill these gaps. METHOD: Twenty participants with a diagnosis of obsessive-compulsive disorder and/or a trauma history took part in a semi-structured interview about violation. Grounded theory was used to analyse interview transcripts. DISCUSSION: Three categories emerged, each with several themes - qualities of violation, violation-related appraisals, and violation-related behaviours. Different violation-related appraisals were associated with different emotions and urges. Specific self-focused appraisal sub-themes (i.e. permanence of consequences; self-worth; responsibility, self-blame and regret) were most closely related to emotions tied to mental contamination. These findings support and expand upon existing cognitive models of mental contamination, identifying key violation-related appraisals and differentiating between mental contamination-related appraisals and those related to other emotional sequelae. Future quantitative and experimental research can evaluate the potential of these appraisals as intervention targets.

2.
Clin Psychol Rev ; 107: 102372, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-38091769

RESUMO

Current conceptualizations of control-related beliefs in Obsessive-Compulsive Disorder (OCD) have largely been limited to beliefs about the need to control thoughts. Although growing evidence supports the notion of considering broader control-related constructs in this disorder, there has been limited research aimed at integrating findings across studies, making it difficult to determine how different control-related beliefs may influence OCD symptoms. The current review sought to systematically analyze findings from all studies investigating the relationship between control beliefs and OCD. The systematic search identified 157 eligible articles that assessed the relationship between control beliefs and OCD symptoms. Results suggested that certain control beliefs (e.g., importance of/need to control of thoughts, sense of control, beliefs about losing control) may be more closely associated with OCD than others (e.g., locus of control, and desire for control). In general, control beliefs were positively associated with OCD, with effect sizes ranging from small to large depending on the symptom domain. Based on limited studies, the only control belief which demonstrated specificity to OCD was ICT. Findings support the importance of integrating additional control beliefs in conceptualizations of OCD and provide evidence to support the benefits of targeting these beliefs in cognitive behavioural therapy.


Assuntos
Terapia Cognitivo-Comportamental , Transtorno Obsessivo-Compulsivo , Humanos , Transtorno Obsessivo-Compulsivo/diagnóstico , Inquéritos e Questionários
3.
Cognit Ther Res ; : 1-11, 2023 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-37363745

RESUMO

Purpose: Cognitive models of mental contamination (feelings of dirtiness/washing behaviour that arise without direct contact with a contaminant) highlight the central role of perceptions of violation in the onset and maintenance of these feelings. Little research has been done to clarify violation-specific appraisals relevant to mental contamination. Perceptions of violation of one's moral self-concept may represent one such appraisal domain. This experiment aimed to examine the impact of these appraisals on feelings of mental contamination. Methods: One hundred and fifty participants received false feedback that they scored high on a morality subscale of a bogus personality test. They then completed a writing task wherein their degree of moral self-violation was manipulated. They received a writing prompt corresponding to one of three randomly assigned conditions (violated self (VS), bolstered self (BS), general negative (GN)). Finally, participants completed measures of mental contamination. Results: The manipulation was effective at violating participants' moral self-concept. Those in the VS condition reported significantly higher levels of feelings of mental contamination than those in the BS or GN conditions. There were no significant differences between conditions regarding urges to wash. Conclusions: Findings highlight the relevance of moral self-violation in the understanding and treatment of mental contamination.

4.
Transplant Proc ; 55(2): 274-278, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36822887

RESUMO

The Gift of Life metaphor is prevalent in pro-donation dialogue, aiming to promote transplant programs and conceptualize the act of organ donation. To obtain a better understanding of living donor perceptions on the term Gift of Life, we analyzed thematic views presented by anonymous living donors (ALLDs). Twenty-six ALLDs completed a semi-structured qualitative interview consisting of questions regarding their motivations, experiences, and perceptions on donation. The following 5 major themes relating to the Gift of Life terminology were elucidated: (1) Complete agreement with the term and its relevance to donation. (2) Their donation did not represent a Gift of Life. (3) The term was too grandiose. (4)A belief that the term has more meaning for the recipient rather than donor. (5 )That the "gift" goes both ways, with the donor also benefiting from the experience.


Assuntos
Transplante de Rim , Obtenção de Tecidos e Órgãos , Humanos , Altruísmo , Doadores Vivos , Fígado , Doações
5.
BMJ Glob Health ; 7(9)2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-36175038

RESUMO

Pakistan regularly faces natural disasters and has a longstanding disaster risk management infrastructure. It is also a nation with high maternal and newborn mortality. Rahnuma-Family Planning Association of Pakistan, with support from the US Centers for Disease Control and Prevention, the Women's Refugee Commission and the International Planned Parenthood Federation South Asia Region's Sexual and Reproductive Health Programme in Crisis and Post Crisis Situations Initiative, embarked on building community capacity to prepare for and respond to sexual and reproductive health (SRH) risks in select disaster-prone areas in Pakistan, and linking communities to existing disaster risk management structures at national, regional and district levels.The initiative began with a training of trainers at the national level, which was cascaded to six union councils (UCs) in three districts in Khyber-Pakhtunkhwa, Punjab and Sindh provinces. Participants developed action plans for their respective UCs that addressed gaps in implementing the Minimum Initial Service Package (MISP) for SRH, the international standard of care for SRH in emergency settings. Communities spent 1.5 years implementing their action plans to strengthen their capacity to respond to SRH needs in the event of an emergency.Project learning highlights the benefits of investing in preparedness to strengthen core services and linking communities to existing formal structures. Action planning led to immediate gains and longer-term benefits. The MISP for SRH was integrated into disaster risk management at all levels. Community mobilisation, awareness raising and the creation of blood donor groups and emergency transport contributed to averting mortality at the community level.


Assuntos
Desastres , Saúde Sexual , Serviços de Planejamento Familiar , Feminino , Humanos , Recém-Nascido , Paquistão , Saúde Reprodutiva , Estados Unidos
6.
Phytochemistry ; 202: 113290, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35803303

RESUMO

Nigella sativa (Black cumin) has many applications in food and pharmaceutical industries. Thymoquinone has been considered as a main effective compound in N. sativa seeds and attracted researchers' attention mainly due to its medicinal potential. In this study, the essential oil components of leaves, flowers and seed developmental stages including half black seeds, soft black seeds and hard black seeds were analyzed in N. sativa. Whereas no terpenes were detected in flowers and leaves, seeds showed an essential oil composition that increased in its thymoquinone content during seed maturation. To study the proposed first step of thymoquinone biosynthesis, the formation of γ-terpinene from geranyl diphosphate (GDP), we identified and functionally characterized a γ-terpinene synthase (NsTPS1) in N. sativa. This monoterpene synthase was identified in RNA sequence data derived from seeds. After heterologous expression in Escherichia coli, partially purified NsTPS1 converted GDP to γ-terpinene. NsTPS1 is the first functionally characterized terpene synthase from N. sativa and displays a higher similarity to other terpene synthases from Ranunculaceae than known γ-terpinene synthases from more distant plant species. Characterization of NsTPS1 elucidates the first dedicated step in the biosynthesis of thymoquinone in N. sativa and paves the way towards metabolic engineering for high-level thymoquinone production.


Assuntos
Nigella sativa , Óleos Voláteis , Monoterpenos Cicloexânicos , Sementes
7.
PLoS One ; 17(4): e0263990, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35390004

RESUMO

BACKGROUND AND OBJECTIVES: Facial expression recognition has been studied extensively, including in relation to social anxiety. Nonetheless, a limited number of studies examined recognition of disgust expressions. Results suggest that disgust is perceived as more threatening than anger, and thus may invite more extreme responses. However, few studies have examined responses to facial expressions. These studies have focused on approach-avoidance responses. Our primary aim was to examine to what extent anger and disgust expressions might invite interpersonal responses in terms of quarrelsomeness-agreeableness and dominance-submissiveness. As social anxiety has been previously associated with a heightened sensitivity to anger and disgust expressions, as well as with alterations in quarrelsomeness-agreeableness and dominance-submissiveness, our secondary aim was to examine whether social anxiety would moderate these responses. METHODS: Participants were 55 women and 43 men who completed social anxiety measures, including the Brief Fear of Negative Evaluation scale, and two tasks that involved "targets" expressing anger, disgust, or happiness at 0%, 50%, or 100%. Participants first indicated how quarrelsome or agreeable and how dominant or submissive they would be towards each target, and then how much they would avoid or approach each target. RESULTS: While 100% disgust and anger expressions invited similar levels of quarrelsomeness and avoidance, 50% disgust invited more quarrelsomeness and stronger avoidance than 50% anger. While these patterns were not meaningfully moderated by social anxiety, individuals with higher BFNE scores showed a relatively strong approach of happy faces. LIMITATIONS: Actual interpersonal behaviour in response to facial expressions was not assessed. CONCLUSIONS: Findings support the relevance of disgust as an interpersonal signal and suggest that, especially at mild intensity, disgust may have a stronger impact than anger on people's quarrelsomeness and avoidance responses. Findings provided no support for the view that people with social anxiety would be particularly responsive to disgust (or anger) expressions.


Assuntos
Asco , Expressão Facial , Ira/fisiologia , Ansiedade , Emoções/fisiologia , Medo , Feminino , Felicidade , Humanos , Masculino
8.
Liver Transpl ; 28(8): 1299-1305, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35229446

RESUMO

Anonymous living organ donation has recently become more common in select transplantation programs, with donors voluntarily offering a kidney or a lobe of their liver to those in need. These anonymous donations may be directed to a specific recipient or nondirected, and anonymity may be one way or reciprocal. Given their unique situation, we interviewed a cohort of anonymous living liver donors and explored their opinions surrounding anonymity and its implications in living liver donation. A total of 26 anonymous donors completed a semistructured qualitative interview consisting of questions regarding their experiences as a living liver donor. The interviews were audio-recorded, transcribed, and analyzed for common themes, specifically those pertaining to the donor's perceptions and experiences with anonymity. Five main themes related to anonymity were identified: (1) the moral importance of an unencumbered gift, (2) wanting internal satisfaction rather than seeking external accolades, (3) anonymity as a protection against potential negative outcomes in the recipient, (4) feelings of ambivalence toward meeting the recipient, and (5) concerns about negative perceptions among their own friends and family. These insights into the range of donors' attitudes toward anonymity will help improve awareness and provide the best possible mental and physical care for the anonymous donor.


Assuntos
Transplante de Fígado , Obtenção de Tecidos e Órgãos , Atitude , Humanos , Fígado , Transplante de Fígado/efeitos adversos , Doadores Vivos
9.
Disabil Rehabil ; 44(8): 1328-1332, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-32755398

RESUMO

PURPOSE: Post-traumatic growth (PTG) is positive change that occurs after struggling with challenging life crises. Research on PTG has typically been limited to oncology populations, first-responders, and individuals in warzones. We report the experience of PTG amongst a sample of 26 anonymous live liver donors. METHODS: Anonymous donors were those with no biological connection or prior relationship with recipients. Twenty-six participants participated in a semi-structured qualitative interview examining their experience with, and outcomes of donation. Interview transcripts were analyzed for themes about PTG using the constant comparison method. RESULTS: While some donors indicated that donation had little lasting impact on their life, most cited significant personal and interpersonal changes resulting from the experience. The most common positive changes included deepened bonds with others, appreciation for personal strength, clearer life direction, legacy-building, and a connection to the transplant community. CONCLUSION: Despite the short-term physical trauma of living donor surgery, the act of anonymous donation appeared to be a catalyst for positive long-term psychological growth. These findings help to bolster the ethical argument in favour of anonymous donation.IMPLICATIONS FOR REHABILITATIONThere is a shortage of organ donors for recipients in need, and anonymous living liver donors can successfully reduce wait times and mortality rates for those on wait lists.There are some questions about the ethics of anonymous donation due to possible negative physical and psychological effects of donation surgery on donors.In a qualitative study, this study shows that donors ascribe significant meaning to, and derive many psychological benefits from, their donation experience.These findings provide insights about how to best support anonymous donors through and after their donation experience.


Assuntos
Transplante de Fígado , Crescimento Psicológico Pós-Traumático , Humanos , Fígado , Transplante de Fígado/psicologia , Doadores Vivos/psicologia , Listas de Espera
10.
Clin Transplant ; 36(3): e14556, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34881451

RESUMO

Anonymous living organ donation is an understudied but rapidly expanding sector in organ transplantation, in which donors choose to donate anonymously to a recipient in need. The family members and close support network of living donors often play a crucial role in the donation process, and their influence likely has a large impact on the decision to donate as well as the donor's physical and psychosocial state. However, there is limited data examining the impact donor families have on the anonymous donor, and in turn, the impact donation has on donors' families. To assess this, we analyzed a semi-structured qualitative interview on living donor experiences with 26 anonymous living liver donors for common themes concerning donor families. Responses surrounding donor families were grouped into three major categories: (1) family reactions to donation, ranging from (a) pride/support, (b) fear/worry, and (c) jealousy/anger; (2) the impact of donation on donor-family relationships, including (a) positive impacts, (b) negative impacts, (c) a positive ripple effect; (3) gaps in institutional support for donor families. This study provides unique information on anonymous living liver donor perceptions related to their families and will help improve existing programs to accommodate donor family needs and cater to donor relationships.


Assuntos
Transplante de Fígado , Obtenção de Tecidos e Órgãos , Família/psicologia , Humanos , Fígado , Transplante de Fígado/psicologia , Doadores Vivos/psicologia
11.
Proc Natl Acad Sci U S A ; 118(52)2021 12 28.
Artigo em Inglês | MEDLINE | ID: mdl-34930840

RESUMO

Thymol and carvacrol are phenolic monoterpenes found in thyme, oregano, and several other species of the Lamiaceae. Long valued for their smell and taste, these substances also have antibacterial and anti-spasmolytic properties. They are also suggested to be precursors of thymohydroquinone and thymoquinone, monoterpenes with anti-inflammatory, antioxidant, and antitumor activities. Thymol and carvacrol biosynthesis has been proposed to proceed by the cyclization of geranyl diphosphate to γ-terpinene, followed by a series of oxidations via p-cymene. Here, we show that γ-terpinene is oxidized by cytochrome P450 monooxygenases (P450s) of the CYP71D subfamily to produce unstable cyclohexadienol intermediates, which are then dehydrogenated by a short-chain dehydrogenase/reductase (SDR) to the corresponding ketones. The subsequent formation of the aromatic compounds occurs via keto-enol tautomerisms. Combining these enzymes with γ-terpinene in in vitro assays or in vivo in Nicotiana benthamiana yielded thymol and carvacrol as products. In the absence of the SDRs, only p-cymene was formed by rearrangement of the cyclohexadienol intermediates. The nature of these unstable intermediates was inferred from reactions with the γ-terpinene isomer limonene and by analogy to reactions catalyzed by related enzymes. We also identified and characterized two P450s of the CYP76S and CYP736A subfamilies that catalyze the hydroxylation of thymol and carvacrol to thymohydroquinone when heterologously expressed in yeast and N. benthamiana Our findings alter previous views of thymol and carvacrol formation, identify the enzymes involved in the biosynthesis of these phenolic monoterpenes and thymohydroquinone in the Lamiaceae, and provide targets for metabolic engineering of high-value terpenes in plants.


Assuntos
Cimenos/metabolismo , Sistema Enzimático do Citocromo P-450/metabolismo , Lamiaceae/metabolismo , Redutases-Desidrogenases de Cadeia Curta/metabolismo , Timol/análogos & derivados , Timol/metabolismo , Cimenos/química , Sistema Enzimático do Citocromo P-450/genética , Lamiaceae/enzimologia , Lamiaceae/genética , Redes e Vias Metabólicas/genética , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Redutases-Desidrogenases de Cadeia Curta/genética , Timol/química
12.
J Anxiety Disord ; 78: 102346, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33395602

RESUMO

Previous research has linked certain psychological disorders, including obsessive-compulsive disorder (OCD), to the experience of disgust and how it is interpreted/appraised. Therefore, the present study examined whether targeting primary and secondary disgust appraisals (i.e., cognitive reappraisal) in individuals with moderate to high OCD-relevant contamination fears can effectively reduce disgust. Fifty-two participants were randomly assigned to one of three conditions; two of which involved reading a brief script modifying either a primary disgust appraisal (i.e., likelihood of a feared outcome) or a secondary disgust appraisal (i.e., the individual's ability to cope), and a third control condition with no reappraisal script. Following this experimental manipulation of disgust appraisal, participants completed two contamination-relevant behavioural approach tasks which involved 1) increasing proximity to, and eventually touching, a dead cockroach, and 2) drinking apple juice from an unused urine sample collection container. Results indicated that the interventions successfully modified their intended appraisal targets. Furthermore, on the second behavioural approach task, the secondary reappraisal condition demonstrated significantly less disgust-related avoidance relative to the control condition and reported significantly less disgust relative to the primary reappraisal condition. Our results incrementally add to the existing literature that emphasises the potential advantages of modifying disgust appraisals and specifically secondary disgust appraisals when treating disgust-based psychological disorders.


Assuntos
Asco , Transtorno Obsessivo-Compulsivo , Emoções , Medo , Humanos , Autorrelato
13.
J Behav Ther Exp Psychiatry ; 71: 101633, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33321247

RESUMO

BACKGROUND AND OBJECTIVES: Mental contamination (i.e., contamination concerns that arise in the absence of direct contact with a contaminant) is a common symptom in obsessive-compulsive disorder (OCD). Cognitive theories suggest that it results from individuals' misinterpretations of perceived violations. Cognitive theories of OCD also highlight the importance of appraisals of inflated responsibility in the maintenance of other OCD symptoms. However, the role of responsibility in mental contamination has not yet been examined experimentally. The present study examined the role of perceived responsibility and violation in the relationship between workplace sexual harassment imagery and subsequent mental contamination. METHODS: One hundred and forty-nine participants listened to a workplace sexual harassment imagery task, wherein responsibility was manipulated. Participants were randomly assigned to one of three conditions (high responsibility (HR), low responsibility (LR), no responsibility (NR)). Participants completed questionnaires assessing mental contamination and completed a hand washing task. RESULTS: Those in the NR condition reported significantly lower levels of responsibility than those in the LR or HR conditions. Accordingly, those in the NR condition also reported significantly lower levels of anxiety and dirtiness than in the LR condition. There were no significant differences between the LR and HR condition on variables of interest. LIMITATIONS: The nature of the victim blaming used for the responsibility induction may have elicited compensatory responses from participants. CONCLUSIONS: Findings may highlight the central role of perceptions of violation in the understanding and treatment of mental contamination.


Assuntos
Desinfecção das Mãos , Transtorno Obsessivo-Compulsivo/psicologia , Assédio Sexual/psicologia , Local de Trabalho/psicologia , Adolescente , Ansiedade/complicações , Ansiedade/psicologia , Feminino , Humanos , Transtorno Obsessivo-Compulsivo/complicações , Distribuição Aleatória , Adulto Jovem
14.
Transplantation ; 105(5): 1039-1043, 2021 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-32467480

RESUMO

BACKGROUND: Scarring can greatly impact quality of life for individuals (ie, causing depression posttraumatic stress disorder and body image issues). Those who wish to be anonymous live liver donors are warned of the potential negative psychological impacts associated with the large scar left from liver donation surgery. Given the unique degree of autonomy that these patients have over their surgery, we explore whether a sample of 26 anonymous live liver donors experience a unique relationship with their scar. METHODS: Anonymous donors participated in a semistructured qualitative interview examining their experience with donation. Interviews were audio-recorded, transcribed, and analyzed using the constant comparison method for themes pertaining, to participants' perception of their scar. RESULTS: Five main themes were identified-a marker of satisfaction about the donation experience, a physical reminder of donation, a trigger for recipient-related thoughts, an awareness tool, and a potential threat to anonymity. Donors did not voice any body image or cosmetic concerns due to their scars. Instead, discussions about the negative aspects of scarring centered around the identifying nature of their scar. CONCLUSIONS: These findings help underscore the distinctiveness of anonymous living liver donors as a patient population. Preparing anonymous living liver donors for different types of cosmetic issues relating to their scar (ie, as a possible threat to their desired anonymity) may be more appropriate than preparing them in the same way as other donor populations.


Assuntos
Cicatriz/psicologia , Hepatectomia/efeitos adversos , Transplante de Fígado/efeitos adversos , Doadores Vivos/psicologia , Privacidade , Adaptação Psicológica , Adolescente , Adulto , Altruísmo , Cicatriz/etiologia , Cicatriz/patologia , Feminino , Humanos , Entrevistas como Assunto , Masculino , Pessoa de Meia-Idade , Autonomia Pessoal , Satisfação Pessoal , Pesquisa Qualitativa , Adulto Jovem
15.
Plant Environ Interact ; 2(4): 177-193, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37283700

RESUMO

Plants use a wide array of secondary metabolites including terpenes as defense against herbivore and pathogen attack, which can be constitutively expressed or induced. Here, we investigated aspects of the chemical and molecular basis of resistance against the exotic rust fungus Austropuccinia psidii in Melaleuca quinquenervia, with a focus on terpenes. Foliar terpenes of resistant and susceptible plants were quantified, and we assessed whether chemotypic variation contributed to resistance to infection by A. psidii. We found that chemotypes did not contribute to the resistance and susceptibility of M. quinquenervia. However, in one of the chemotypes (Chemotype 2), susceptible plants showed higher concentrations of several terpenes including α-pinene, limonene, 1,8-cineole, and viridiflorol compared with resistant plants. Transcriptome profiling of these plants showed that several TPS genes were strongly induced in response to infection by A. psidii. Functional characterization of these TPS showed them to be mono- and sesquiterpene synthases producing compounds including 1,8-cineole, ß-caryophyllene, viridiflorol and nerolidol. The expression of these TPS genes correlated with metabolite data in a susceptible plant. These results suggest the complexity of resistance mechanism regulated by M. quinquenervia and that modulation of terpenes may be one of the components that contribute to resistance against A. psidii.

17.
J Hepatol ; 71(5): 951-959, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31279899

RESUMO

BACKGROUND & AIMS: Death rates on liver transplant waiting lists range from 5%-25%. Herein, we report a unique experience with 50 anonymous individuals who volunteered to address this gap by offering to donate part of their liver to a recipient with whom they had no biological connection or prior relationship, so called anonymous live liver donation (A-LLD). METHODS: Candidates were screened to confirm excellent physical, mental, social, and financial health. Demographics and surgical outcomes were analyzed. Qualitative interviews after donation examined motivation and experiences. Validated self-reported questionnaires assessed personality traits and psychological impact. RESULTS: A total of 50 A-LLD liver transplants were performed between 2005 and 2017. Most donors had a university education, a middle-class income, and a history of prior altruism. Half were women. Median age was 38.5 years (range 20-59). Thirty-three (70%) learned about this opportunity through public or social media. Saving a life, helping others, generativity, and reciprocity for past generosity were motivators. Social, financial, healthcare, and legal support in Canada were identified as facilitators. A-LLD identified most with the personality traits of agreeableness and conscientiousness. The median hospital stay was 6 days. One donor experienced a Dindo-Clavien Grade 3 complication that completely resolved. One-year recipient survival was 91% in 22 adults and 97% in 28 children. No A-LLD reported regretting their decision. CONCLUSIONS: This is the first and only report of the characteristics, motivations and facilitators of A-LLD in a large cohort. With rigorous protocols, outcomes are excellent. A-LLD has significant potential to reduce the gap between transplant organ demand and availability. LAY SUMMARY: We report a unique experience with 50 living donors who volunteered to donate to a recipient with whom they had no biological connection or prior relationship (anonymous living donors). This report is the first to discuss motivations, strategies and facilitators that may mitigate physical, social and ethical risk factors in this patient population. With rigorous protocols, anonymous liver donation and recipient outcomes are excellent; with appropriate clinical expertise and system facilitators in place, our experience suggests that other centers may consider the procedure for its significant potential to reduce the gap between transplant organ demand and availability.


Assuntos
Anonimização de Dados , Transplante de Fígado/psicologia , Doadores Vivos/psicologia , Adolescente , Adulto , Altruísmo , Canadá , Criança , Pré-Escolar , Feminino , Seguimentos , Humanos , Lactente , Tempo de Internação , Transplante de Fígado/efeitos adversos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Autorrelato , Transplantados , Resultado do Tratamento , Adulto Jovem
18.
New Phytol ; 223(3): 1489-1504, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31066055

RESUMO

Terpenoid-based essential oils are economically important commodities, yet beyond their biosynthetic pathways, little is known about the genetic architecture of terpene oil yield from plants. Transport, storage, evaporative loss, transcriptional regulation and precursor competition may be important contributors to this complex trait. Here, we associate 2.39 million single nucleotide polymorphisms derived from shallow whole-genome sequencing of 468 Eucalyptus polybractea individuals with 12 traits related to the overall terpene yield, eight direct measures of terpene concentration and four biomass-related traits. Our results show that in addition to terpene biosynthesis, development of secretory cavities, where terpenes are both synthesized and stored, and transport of terpenes were important components of terpene yield. For sesquiterpene concentrations, the availability of precursors in the cytosol was important. Candidate terpene synthase genes for the production of 1,8-cineole and α-pinene, and ß-pinene (which comprised > 80% of the total terpenes) were functionally characterized as a 1,8-cineole synthase and a ß/α-pinene synthase. Our results provide novel insights into the genomic architecture of terpene yield and we provide candidate genes for breeding or engineering of crops for biofuels or the production of industrially valuable terpenes.


Assuntos
Eucalyptus/genética , Genoma de Planta , Estudo de Associação Genômica Ampla , Óleos de Plantas/metabolismo , Terpenos/metabolismo , Alquil e Aril Transferases/genética , Vias Biossintéticas , Genes de Plantas , Genótipo , Padrões de Herança/genética , Análise Multivariada , Polimorfismo de Nucleotídeo Único/genética , Locos de Características Quantitativas/genética , Reprodutibilidade dos Testes , Terpenos/química
19.
Confl Health ; 12: 35, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30127844

RESUMO

BACKGROUND: Following the Nepal earthquake in April 2015, UNFPA estimated that 1.4 million women of reproductive age were affected, with approximately 93,000 pregnant and 28,000 at risk of sexual violence. A set of priority reproductive health (RH) actions, the Minimum Initial Services Package (MISP), was initiated by government, international and local actors. The purpose of this study was to identify the facilitators and barriers affecting the implementation of priority RH services in two districts. METHODS: In September 2015, a mixed methods study design was used in Kathmandu and Sindhupalchowk districts to assess the implementation of the priority RH services five months post-earthquake. Data collection activities included 32 focus group discussions with male and female participants aged 18-49; 26 key informant interviews with RH, gender-based violence (GBV), and human immunodeficiency virus (HIV) experts; and 17 health facility assessments. RESULTS: The implementation of priority RH services was achieved in both districts. In Kathmandu implementation of emergency RH services started within days of the earthquake. Facilitating factors for successful implementation included disaster preparedness; leadership and commitment among national, international, and district level actors; resource mobilization; strong national level coordination; existing reproductive and child health services and community outreach programs; and supply chain management. Barriers included inadequate MISP training for RH coordinators and managers; weak communication between national and district level stakeholders; inadequate staffing; under-resourced and fewer facilities in rural areas; limited attention given to local GBV and HIV organizations; low availability of clinical management of rape services; and low awareness of GBV services and benefits of timely care. CONCLUSION: Ensuring RH is included in emergency preparedness and immediate response efforts and is continued through the transition to comprehensive care is critical for national governments and humanitarian response agencies. The MISP for RH remains a critical component of response efforts, and the humanitarian community should consider these learnings in future emergency response.

20.
Reprod Health Matters ; 25(51): 18-24, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29231788

RESUMO

Since the 1990s, the Inter-agency field manual on reproductive health in humanitarian settings (IAFM) has provided authoritative guidance on reproductive health service provision during different phases of complex humanitarian emergencies. In 2018, the Inter-Agency Working Group on Reproductive Health in Crises will release a new edition of this global resource. In this article, we describe the collaborative and inter-sectoral revision process and highlight major changes in the 2018 IAFM. Key revisions to the manual include repositioning unintended pregnancy prevention within and explicitly incorporating safe abortion care into the Minimum Initial Service Package (MISP) chapter, which outlines a set of priority activities to be implemented at the outset of a humanitarian crisis; stronger guidance on the transition from the MISP to comprehensive sexual and reproductive health services; and the addition of a logistics chapter. In addition, the IAFM now places greater and more consistent emphasis on human rights principles and obligations, gender-based violence, and the linkages between maternal and newborn health, and incorporates a diverse range of field examples. We conclude this article with an outline of plans for releasing the 2018 IAFM and facilitating uptake by those working in refugee, crisis, conflict, and emergency settings.


Assuntos
Serviços de Saúde Materno-Infantil/organização & administração , Refugiados , Socorro em Desastres/organização & administração , Serviços de Saúde Reprodutiva/organização & administração , Nações Unidas , Conscientização , Fortalecimento Institucional , Anticoncepção/métodos , Comportamento Cooperativo , Feminino , Direitos Humanos , Humanos , Conhecimento , Serviços de Saúde Materno-Infantil/economia , Serviços de Saúde Materno-Infantil/provisão & distribuição , Políticas , Socorro em Desastres/economia , Serviços de Saúde Reprodutiva/economia , Serviços de Saúde Reprodutiva/provisão & distribuição , Educação Sexual , Saúde da Mulher
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA