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"Stigmas (botany)"
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How Does Stigma Affect People Living with HIV? The Mediating Roles of Internalized and Anticipated HIV Stigma in the Effects of Perceived Community Stigma on Health and Psychosocial Outcomes
by
Browning, Wesley R.
,
Turan, Bulent
,
Budhwani, Henna
in
Acquired immune deficiency syndrome
,
AIDS
,
Avoidance behavior
2017
Few researchers have attempted to examine the mechanisms through which HIV-related stigma in the community is processed and experienced at an individual level by people living with HIV. We examined how the effects of perceived HIV stigma in the community on health outcomes for people living with HIV are mediated by internalized stigma and anticipated stigma. Participants (N = 203) from an HIV clinic completed self-report measures and their clinical data were obtained from medical records. Results suggested that the association between perceived community stigma and affective, cognitive, and mental health outcomes (self-esteem, depressive symptoms, avoidance coping, self-blame) are mediated by internalized stigma. Furthermore, a serial mediation model suggested that perceived community stigma leads to internalized stigma, which leads to anticipated community stigma, which in turn leads to lower medication adherence. The associations between perceived community stigma and interpersonal outcomes (social support, trust in physicians) were mediated by internalized stigma and anticipated stigma, again in a serial fashion (perceived community stigma leads to internalized stigma, which leads to anticipated stigma, which in turn leads to interpersonal outcomes). These results suggest that perceived HIV-related stigma in the community may cause people living with HIV to internalize stigma and anticipate stigmatizing experiences, resulting in adverse health and psychosocial outcomes—information that can be used to shape interventions.
Journal Article
Stigma receptors control intraspecies and interspecies barriers in Brassicaceae
2023
Flowering plants have evolved numerous intraspecific and interspecific prezygotic reproductive barriers to prevent production of unfavourable offspring
1
. Within a species, self-incompatibility (SI) is a widely utilized mechanism that rejects self-pollen
2
,
3
to avoid inbreeding depression. Interspecific barriers restrain breeding between species and often follow the SI × self-compatible (SC) rule, that is, interspecific pollen is unilaterally incompatible (UI) on SI pistils but unilaterally compatible (UC) on SC pistils
1
,
4
–
6
. The molecular mechanisms underlying SI, UI, SC and UC and their interconnections in the Brassicaceae remain unclear. Here we demonstrate that the SI pollen determinant
S
-locus cysteine-rich protein/
S
-locus protein 11 (SCR/SP11)
2
,
3
or a signal from UI pollen binds to the SI female determinant
S
-locus receptor kinase (SRK)
2
,
3
, recruits FERONIA (FER)
7
–
9
and activates FER-mediated reactive oxygen species production in SI stigmas
10
,
11
to reject incompatible pollen. For compatible responses, diverged pollen coat protein B-class
12
–
14
from SC and UC pollen differentially trigger nitric oxide, nitrosate FER to suppress reactive oxygen species in SC stigmas to facilitate pollen growth in an intraspecies-preferential manner, maintaining species integrity. Our results show that SRK and FER integrate mechanisms underlying intraspecific and interspecific barriers and offer paths to achieve distant breeding in Brassicaceae crops.
A signalling mechanism ensuring intraspecies and interspecies reproductive barriers in flowering plants is uncovered.
Journal Article
Abortion Stigma: A Systematic Review
by
Linde, Katja
,
Hanschmidt, Franz
,
Riedel- Heller, Steffi G.
in
Abortion
,
Abortion, Induced
,
Attitude to Health
2016
Context Although stigma has been identified as a potential risk factor for the well‐being of women who have had abortions, little attention has been paid to the study of abortion‐related stigma. Methods A systematic search of the databases Medline, PsycArticles, PsycInfo, PubMed and Web of Science was conducted; the search terms were “(abortion OR pregnancy termination) AND stigma*.” Articles were eligible for inclusion if the main research question addressed experiences of individuals subjected to abortion stigma, public attitudes that stigmatize women who have had abortions or interventions aimed at managing abortion stigma. To provide a comprehensive overview of this issue, any study published by February 2015 was considered. The search was restricted to English‐ and German‐language studies. Results Seven quantitative and seven qualitative studies were eligible for inclusion. All but two dated from 2009 or later; the earliest was from 1984. Studies were based mainly on U.S. samples; some included participants from Ghana, Great Britain, Mexico, Nigeria, Pakistan, Peru and Zambia. The majority of studies showed that women who have had abortions experience fear of social judgment, self‐judgment and a need for secrecy. Secrecy was associated with increased psychological distress and social isolation. Some studies found stigmatizing attitudes in the public. Stigma appeared to be salient in abortion providers’ lives. Evidence of interventions to reduce abortion stigma was scarce. Most studies had limitations regarding generalizability and validity. Conclusion More research, using validated measures, is needed to enhance understanding of abortion stigma and thereby reduce its impact on affected individuals.
Journal Article
Effectiveness of interventions to promote help-seeking for mental health problems: systematic review and meta-analysis
2018
Help-seeking is important to access appropriate care and improve mental health. However, individuals often delay or avoid seeking help for mental health problems. Interventions to improve help-seeking have been developed, but their effectiveness is unclear. A systematic review and meta-analysis were therefore conducted to examine the effectiveness of mental health related help-seeking interventions. Nine databases in English, German and Chinese were searched for randomised and non-randomised controlled trials. Effect sizes were calculated for attitudes, intentions and behaviours to seek formal, informal and self-help. Ninety-eight studies with 69 208 participants were included. Interventions yielded significant short-term benefits in terms of formal help-seeking, self-help, as well as mental health literacy and personal stigma. There were also positive long-term effects on formal help-seeking behaviours. The most common intervention types were strategies to increase mental health literacy, destigmatisation (both had positive short-term effects on formal help-seeking behaviours) as well as motivational enhancement (with positive long-term effects on formal help-seeking behaviours). Interventions improved formal help-seeking behaviours if delivered to people with or at risk of mental health problems, but not among children, adolescents or the general public. There was no evidence that interventions increased the use of informal help. Few studies were conducted in low- and middle-income countries (LMICs). This study provides evidence for the effectiveness of help-seeking interventions in terms of improving attitudes, intentions and behaviours to seek formal help for mental health problems among adults. Future research should develop effective interventions to improve informal help-seeking, for specific target groups and in LMICs settings.
Journal Article
Psychosocial effects of an Ebola outbreak at individual, community and international levels
by
Koroma, Alimamy Sultan
,
Muana, Andrew T
,
Jambai, Musu
in
Africa, Western - epidemiology
,
Blame
,
Breaking down
2016
The 2013-2016 Ebola outbreak in Guinea, Liberia and Sierra Leone was the worst in history with over 28,000 cases and 11,000 deaths. Here we examine the psychosocial consequences of the epidemic. Ebola is a traumatic illness both in terms of symptom severity and mortality rates. Those affected are likely to experience psychological effects due to the traumatic course of the infection, fear of death and experience of witnessing others dying. Survivors can also experience psychosocial consequences due to feelings of shame or guilt (e.g. from transmitting infection to others) and stigmatization or blame from their communities. At the community level, a cyclical pattern of fear occurs, with a loss of trust in health services and stigma, resulting in disruptions of community interactions and community break down. Health systems in affected countries were severely disrupted and overstretched by the outbreak and their capacities were significantly reduced as almost 900 health-care workers were infected with Ebola and more than 500 died. The outbreak resulted in an increased need for health services, reduced quality of life and economic productivity and social system break down. It is essential that the global response to the outbreak considers both acute and long-term psychosocial needs of individuals and communities. Response efforts should involve communities to address psychosocial need, to rebuild health systems and trust and to limit stigma. The severity of this epidemic and its long-lasting repercussions should spur investment in and development of health systems.
Journal Article
Understanding the Experience of Stigma for Parents of Children with Autism Spectrum Disorder and the Role Stigma Plays in Families’ Lives
2016
Stigma is widely perceived in the lives of families with autism spectrum disorder (ASD) yet large, systematic studies have not been undertaken. Following Link and Phelan’s (Ann Rev Sociol 27:363–385,
2001
) model, this study of 502 Simons Simplex Collection families details how different factors contribute to stigma and how each appears to increase the overall difficulty of raising a child with ASD. The model begins with the child’s behavioral symptoms and then specifies stigma processes of stereotyping, rejection, and exclusion. Autism behaviors contribute both to the difficulty families experience raising a child with autism and to the stigma processes associated with those behaviors. Stigma also plays a significant role (.282,
p
< .001) in predicting how difficult life is overall for parents.
Journal Article
Grass pea (Lathyrus sativus L.)
2019
Grass pea (Lathyrus sativus L.) is a Neolithic plant that has survived millennia of cultivation and has spread over three continents. It is a robust legume crop that is considered one of the most resilient to climate changes and to be survival food during drought-triggered famines. The hardy penetrating root system allows the cultivation of grass pea in various soil types, including marginal ones. As an efficient nitrogen fixer, it meets its own nitrogen requirements and positively benefits subsequent crops. However, already in ancient India and Greece, overconsumption of the seeds and a crippling neurological disorder, later coined neurolathyrism, had been linked. Overemphasis of their suspected toxic properties has led to disregard the plant’s exceptionally positive agronomic properties and dietary advantages. In normal socio-economic and environmental situations, in which grass pea is part of a balanced diet, neurolathyrism is virtually non-existent. The etiology of neurolathyrism has been oversimplified and the deficiency in methionine in the diet has been overlooked. In view of the global climate change, this very adaptable and nutritious orphan crop deserves more attention. Grass pea can become a wonder crop if the double stigma on its reputation as a toxic plant and as food of the poor can be disregarded. Additionally, recent research has exposed the potential of grass pea as a health-promoting nutraceutical. Development of varieties with an improved balance in essential amino acids and diet may be relevant to enhance the nutritional value without jeopardizing the multiple stress tolerance of this promising crop.
Journal Article
Developing Climate-Resilient Chickpea Involving Physiological and Molecular Approaches With a Focus on Temperature and Drought Stresses
by
Jha, Uday Chand
,
Rani, Anju
,
Sharma, Kamal Dev
in
Agricultural production
,
Biotechnology
,
chickpea
2020
Chickpea is one of the most economically important food legumes, and a significant source of proteins. It is cultivated in more than 50 countries across Asia, Africa, Europe, Australia, North America, and South America. Chickpea production is limited by various abiotic stresses (cold, heat, drought, salt,
.). Being a winter-season crop in northern south Asia and some parts of the Australia, chickpea faces low-temperature stress (0-15°C) during the reproductive stage that causes substantial loss of flowers, and thus pods, to inhibit its yield potential by 30-40%. The winter-sown chickpea in the Mediterranean, however, faces cold stress at vegetative stage. In late-sown environments, chickpea faces high-temperature stress during reproductive and pod filling stages, causing considerable yield losses. Both the low and the high temperatures reduce pollen viability, pollen germination on the stigma, and pollen tube growth resulting in poor pod set. Chickpea also experiences drought stress at various growth stages; terminal drought, along with heat stress at flowering and seed filling can reduce yields by 40-45%. In southern Australia and northern regions of south Asia, lack of chilling tolerance in cultivars delays flowering and pod set, and the crop is usually exposed to terminal drought. The incidences of temperature extremes (cold and heat) as well as inconsistent rainfall patterns are expected to increase in near future owing to climate change thereby necessitating the development of stress-tolerant and climate-resilient chickpea cultivars having region specific traits, which perform well under drought, heat, and/or low-temperature stress. Different approaches, such as genetic variability, genomic selection, molecular markers involving quantitative trait loci (QTLs), whole genome sequencing, and transcriptomics analysis have been exploited to improve chickpea production in extreme environments. Biotechnological tools have broadened our understanding of genetic basis as well as plants' responses to abiotic stresses in chickpea, and have opened opportunities to develop stress tolerant chickpea.
Journal Article
The Association of HIV-Related Stigma to HIV Medication Adherence: A Systematic Review and Synthesis of the Literature
by
Vanable, Peter A.
,
Sweeney, Shannon M.
in
Acquired immune deficiency syndrome
,
Adherence
,
Adhesion
2016
This paper provides a review of the quantitative literature on HIV-related stigma and medication adherence, including: (1) synthesis of the empirical evidence linking stigma to adherence, (2) examination of proposed causal mechanisms of the stigma and adherence relationship, and (3) methodological critique and guidance for future research. We reviewed 38 studies reporting either cross-sectional or prospective analyses of the association of HIV-related stigma to medication adherence since the introduction of antiretroviral therapies (ART). Although there is substantial empirical evidence linking stigma to adherence difficulties, few studies provided data on psychosocial mechanisms that may account for this relationship. Proposed mechanisms include: (a) enhanced vulnerability to mental health difficulties, (b) reduction in self-efficacy, and (c) concerns about inadvertent disclosure of HIV status. Future research should strive to assess the multiple domains of stigma, use standardized measures of adherence, and include prospective analyses to test mediating variables.
Journal Article
Stigma and Conspiracy Beliefs Related to Pre-exposure Prophylaxis (PrEP) and Interest in Using PrEP Among Black and White Men and Transgender Women Who Have Sex with Men
by
Kalichman, Seth C.
,
Eaton, Lisa A.
,
Finneran, Stephanie
in
Acquired immune deficiency syndrome
,
Adult
,
AIDS
2017
The HIV/AIDS epidemic in the US continues to persist, in particular, among race, sexual orientation, and gender minority populations. Pre-exposure prophylaxis (PrEP), or using antiretroviral medications for HIV prevention, is an effective option, but uptake of PrEP has been slow. Sociocultural barriers to using PrEP have been largely underemphasized, yet have the potential to stall uptake and, therefore, warrant further understanding. In order to assess the relationships between potential barriers to PrEP (i.e., PrEP stigma and conspiracy beliefs), and interest in PrEP, Black men and transgender women who have sex with men (BMTW,
N
= 85) and White MTW (WMTW,
N
= 179) were surveyed at a gay pride event in 2015 in a large southeastern US city. Bivariate and multivariate logistic regression analyses were completed to examine factors associated with PrEP interest. Among the full sample, moderate levels of PrEP awareness (63%) and low levels of use (9%) were observed. Believing that PrEP is for people who are promiscuous (stigma belief) was strongly associated with lack of interest in using PrEP, and individuals who endorsed this belief were more likely to report sexual risk taking behavior. Conspiracy beliefs related to PrEP were reported among a large minority of the sample (42%) and were more frequently reported among BMTW than WMTW. Given the strong emphasis on the use of biomedical strategies for HIV prevention, addressing sociocultural barriers to PrEP access is urgently needed and failure to do so will weaken the potential benefits of biomedical prevention.
Journal Article