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1.
Canadian Psychology ; 63(3):279-297, 2022.
Article in English | ProQuest Central | ID: covidwho-2269722

ABSTRACT

De nombreux Canadiens d'origine chinoise ont connu un plus grand nombre d' incidents de racisme et de xénophobie depuis le début de la pandémie de coronavirus (COVID-19). La présente étude porte sur cette discrimination accrue a l'égard des Chinois et en quoi celleci et les menaces liées a la pandémie elle-meme nuisent au bien-etre des Canadiens d' origine chinoise ainsi qu' a leur identité chinoise et canadienne. Nous avons interrogé 874 adultes d'origine chinoise de partout au Canada - M?ge = 42,09;47,7 % de femmes;628 nés a l'étranger, de premiere génération (G1), et 246 nés au Canada, de deuxieme génération (G2) au moins. Les taux rapportés d'expériences discriminatoires sont alarmants : plus de la moitié des répondants ont dit avoir été traités avec moins de respect en raison deleurethnie (G1: 60,6 %;G2: 56,8 %), et plus du tiers ont dit avoir été personnellement menacés ou avoir été victimes d' intimidation (G1 : 35,2%;G2 : 39,8%). Le statut générationnel influait sur les expériences des Canadiens d' origine chinoise durant la pandémie : les membres de la G1 ont ressenti davantage de menaces pour leur santé, leur situation financiere et leur culture durant la pandémie, et les membres de la G2 ont témoigné d'une plus grande discrimination personnelle et a l'égard de leur groupe. La discrimination perçue était associée a l'affect négatif, meme apres avoir tenu compte des menaces liées a la pandémie. Le type de discrimination a des répercussions différentes pour les identités culturelles patrimoniale et dominante. Au sein des deux groupes, la discrimination personnelle était négativement associée a l' identité canadienne, et la discrimination de groupe était positivement associée a l'identité chinoise. Environ 10 % seulement des Canadiens d'origine chinoise qui ont été victimes de harcelement ont rapporté leurs expériences aux autorités ou dans les médias sociaux;leur propre perception d'etre, aux yeux d'autrui, de perpétuels étrangers les a empechés de rapporter le harcelement. Les auteurs discutent des répercussions du signalement du harcelement sur l'acculturation, l'identité, les stratégies antiracistes et la responsabilisation personnelle.Alternate :Many Chinese Canadians (CCs) have experienced increased racism and xenophobia since the beginning of the Coronavirus disease (COVID-19) pandemic. This study focused on how this rise of anti-Chinese discrimination, in addition to the threats posed by the pandemic itself, affects not only CCs' well-being, but also their Chinese and Canadian identities. We surveyed 874 CC adults from across Canada, Mage = 42.09;47.7% females;628 foreign-born, first-generation (G1) and 246 Canadian-born, second or later generation (G2). The reported rates of discriminatory experiences were alarming: More than half of the respondents reported that they had been treated with less respect because of their ethnicity (G1: 60.6%;G2: 56.8%), and over a third reported that they had been personally threatened or intimidated (G1: 35.2%;G2: 39.8%). Generational status moderated CCs' pandemic experiences, such that G1 CCs perceived more health, financial, and cultural threats due to the pandemic, but G2 CCs reported more personal and group discrimination. Perceived discrimination was associated with CCs' negative affect even after controlling for pandemic threats. The type of discrimination had different implications for heritage and mainstream cultural identities. For both groups, personal discrimination was negatively associated with Canadian identity, whereas group discrimination was positively associated with Chinese identity. Only about 10% of CCs who experienced harassment reported their encounters to authorities or on social media;CCs' perceptions that others saw them as perpetual foreigners undermined their reporting of harassment. The findings' implications for acculturation, identity, anti-racism strategies, and empowerment in reporting harassment are discussed.

2.
Cultur Divers Ethnic Minor Psychol ; 2022 Jan 13.
Article in English | MEDLINE | ID: covidwho-2269723

ABSTRACT

OBJECTIVE: The coronavirus disease (COVID-19) pandemic has amplified preexisting racism and xenophobia. In this study, we investigated (a) whether perceived personal and group discrimination make distinct contributions to Chinese Canadians' negative affect and concern that the heightened discrimination they experienced during the pandemic will continue after the pandemic; (b) whether Canadian and Chinese identities and social support moderate the effect of discrimination on this concern; and (c) whether race-based rejection sensitivity (RS) explains why each type of discrimination predicts negative affect and expectation of future discrimination. METHOD: A sample of Chinese Canadian adults across Canadian provinces (N = 516; Mage = 42.74, 53.3% females) completed a questionnaire assessing personal and group discrimination, Chinese and Canadian identity, a short form of race-based RS, negative affect, and expectation of future discrimination. RESULTS: Personal and group discrimination were intercorrelated and positively associated with negative emotion and expectation of future discrimination. Chinese Canadians who identified more strongly as Chinese experienced a less adverse impact related to group discrimination. However, those who identified more (vs. less) strongly as Canadians were more likely to be impacted by personal discrimination. Finally, path analysis revealed that both personal and group discrimination were positively associated with RS, which in turn predicted an expectation that long-lasting racism would continue after the pandemic. CONCLUSION: Group and personal discrimination play different roles in Chinese Canadians' experiences during and expectations after the pandemic. Maintaining Chinese identity can be beneficial to Chinese Canadians, particularly in mitigating the negative effect of group discrimination during the pandemic. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

3.
PLoS Pathog ; 18(12): e1011041, 2022 12.
Article in English | MEDLINE | ID: covidwho-2197181

ABSTRACT

Stress granules (SGs) are cytoplasmic condensates that often form as part of the cellular antiviral response. Despite the growing interest in understanding the interplay between SGs and other biological condensates and viral replication, the role of SG formation during coronavirus infection remains poorly understood. Several proteins from different coronaviruses have been shown to suppress SG formation upon overexpression, but there are only a handful of studies analyzing SG formation in coronavirus-infected cells. To better understand SG inhibition by coronaviruses, we analyzed SG formation during infection with the human common cold coronavirus OC43 (HCoV-OC43) and the pandemic SARS-CoV2. We did not observe SG induction in infected cells and both viruses inhibited eukaryotic translation initiation factor 2α (eIF2α) phosphorylation and SG formation induced by exogenous stress. Furthermore, in SARS-CoV2 infected cells we observed a sharp decrease in the levels of SG-nucleating protein G3BP1. Ectopic overexpression of nucleocapsid (N) and non-structural protein 1 (Nsp1) from both HCoV-OC43 and SARS-CoV2 inhibited SG formation. The Nsp1 proteins of both viruses inhibited arsenite-induced eIF2α phosphorylation, and the Nsp1 of SARS-CoV2 alone was sufficient to cause a decrease in G3BP1 levels. This phenotype was dependent on the depletion of cytoplasmic mRNA mediated by Nsp1 and associated with nuclear accumulation of the SG-nucleating protein TIAR. To test the role of G3BP1 in coronavirus replication, we infected cells overexpressing EGFP-tagged G3BP1 with HCoV-OC43 and observed a significant decrease in virus replication compared to control cells expressing EGFP. The antiviral role of G3BP1 and the existence of multiple SG suppression mechanisms that are conserved between HCoV-OC43 and SARS-CoV2 suggest that SG formation may represent an important antiviral host defense that coronaviruses target to ensure efficient replication.


Subject(s)
COVID-19 , Coronavirus OC43, Human , Humans , Coronavirus OC43, Human/metabolism , COVID-19/metabolism , Cytoplasmic Granules/metabolism , DNA Helicases/metabolism , Poly-ADP-Ribose Binding Proteins/genetics , Poly-ADP-Ribose Binding Proteins/metabolism , RNA Helicases/genetics , RNA Helicases/metabolism , RNA Recognition Motif Proteins/metabolism , RNA, Viral/metabolism , SARS-CoV-2/metabolism , Stress Granules
4.
PLoS Pathog ; 18(9): e1010832, 2022 09.
Article in English | MEDLINE | ID: covidwho-2039448

ABSTRACT

There is an outstanding need for broadly acting antiviral drugs to combat emerging viral diseases. Here, we report that thiopurines inhibit the replication of the betacoronaviruses HCoV-OC43 and SARS-CoV-2. 6-Thioguanine (6-TG) disrupted early stages of infection, limiting accumulation of full-length viral genomes, subgenomic RNAs and structural proteins. In ectopic expression models, we observed that 6-TG increased the electrophoretic mobility of Spike from diverse betacoronaviruses, matching the effects of enzymatic removal of N-linked oligosaccharides from Spike in vitro. SARS-CoV-2 virus-like particles (VLPs) harvested from 6-TG-treated cells were deficient in Spike. 6-TG treatment had a similar effect on production of lentiviruses pseudotyped with SARS-CoV-2 Spike, yielding pseudoviruses deficient in Spike and unable to infect ACE2-expressing cells. Together, these findings from complementary ectopic expression and infection models strongly indicate that defective Spike trafficking and processing is an outcome of 6-TG treatment. Using biochemical and genetic approaches we demonstrated that 6-TG is a pro-drug that must be converted to the nucleotide form by hypoxanthine phosphoribosyltransferase 1 (HPRT1) to achieve antiviral activity. This nucleotide form has been shown to inhibit small GTPases Rac1, RhoA, and CDC42; however, we observed that selective chemical inhibitors of these GTPases had no effect on Spike processing or accumulation. By contrast, the broad GTPase agonist ML099 countered the effects of 6-TG, suggesting that the antiviral activity of 6-TG requires the targeting of an unknown GTPase. Overall, these findings suggest that small GTPases are promising targets for host-targeted antivirals.


Subject(s)
COVID-19 , Monomeric GTP-Binding Proteins , Prodrugs , Angiotensin-Converting Enzyme 2 , Antiviral Agents/chemistry , Antiviral Agents/pharmacology , Humans , Hypoxanthine Phosphoribosyltransferase/metabolism , Monomeric GTP-Binding Proteins/metabolism , Nucleotides/metabolism , SARS-CoV-2 , Spike Glycoprotein, Coronavirus/metabolism , Thioguanine , Virion/metabolism
5.
Int J Intercult Relat ; 88: 148-156, 2022 May.
Article in English | MEDLINE | ID: covidwho-1799908

ABSTRACT

The COVID-19 pandemic's differential impact on ethnic minorities, immigrants, and Indigenous people (e.g., mortality and infection rate, as well as psychological well-being) may exacerbate existing disparities. This study examined perceived threat as a psychological mechanism to explain the apparently more negative emotional experiences of ethnic minority Canadians during the pandemic compared with non-immigrant European Canadians (i.e., the majority/mainstream ethno-cultural group). We investigated group differences in negative affect and three possible threat mechanisms (perceived health, material, and cultural threat) for these differences using an online survey completed by a self-selected Canadian sample (N = 1,918). The results suggest that compared to the non-immigrant European Canadian group, ethnic minority members, immigrants, and Indigenous people have on average perceived higher levels of pandemic threat, which in turn is associated with negative affect. These findings support the hypothesis that the amount of threat perceived by different groups during the pandemic might partially explain reported group differences in well-being.

6.
Front Psychol ; 13: 853830, 2022.
Article in English | MEDLINE | ID: covidwho-1775783

ABSTRACT

Early in the COVID-19 pandemic, journalists and scholars noted differences between Asians and North Americans in their support for public mask use. These differences were primarily assumed to be due d to variations in ethnocultural norms and practices. To better ascertain people's motives for wearing masks and potential cultural differences in these rationales, this comparative, mixed-methods research examines Chinese and non-East Asian Canadians' mask use attitudes utilizing online group interviews (Study 1) and a nation-wide survey (Study 2) Study 1, conducted in the early stages of the pandemic, captured an ambivalent, yet evolving attitude toward public mask use among the non-East Asian Canadians, which differed from their Chinese counterparts who more uniformly perceived mask use favorably. Study 2, conducted 2 months later, suggests that both groups primarily wore masks for disease protection- and prevention-related reasons. However, age and education appeared to influence the mask wearing frequency of the non-East Asian Canadians, for whom public mask use was less prevalent and normative. The attitudinal differences in public mask use call for targeted strategies to support mask wearing for different ethnocultural groups, which may be achieved partially through enhancing interethnic understanding on the diversified use of and opinions about masks. The findings suggest that favorable social norms, along with evidence-based information campaigns involving personal appeals may encourage greater mask use by the non-East Asian population.

7.
medrxiv; 2021.
Preprint in English | medRxiv | ID: ppzbmed-10.1101.2021.06.04.21258335

ABSTRACT

As of early May 2021, the ongoing pandemic COVID-19 has caused over 160 million of infections and over 3 million deaths worldwide. Many risk factors, such as age, gender, and comorbidities, have been studied to explain the variable symptoms of infected patients. However, these effects may not fully account for the diversity in disease severity. Here, we present a comprehensive analysis of a broad range of patients laboratory and clinical assessments to investigate the genetic contributions to COVID-19 severity. By performing GWAS analysis, we discovered several concrete associations for laboratory features. Based on these findings, we performed Mendelian randomization (MR) analysis to investigate the causality of laboratory traits on disease severity. From the MR study, we identified two causal traits, cholesterol levels and WBC counts. The functional gene related to cholesterol levels is ApoE and people with particular ApoE genotype are more likely to have higher cholesterol levels, facilitating the process that SARS-CoV-2 binds on its receptor ACE2 and aggravating COVID-19 disease. The functional gene related to WBC counts is MHC system that plays a central role in the immune system. The host immune response to the SARS-CoV-2 infection greatly affects the patients severity status and clinical outcome. Additionally, our gene-based and GSEA analysis revealed interferon pathways, including type I interferon receptor binding, regulation of IFNA signaling, and SARS coronavirus and innate immunity. We hope that our work will make a contribution in studying the genetic mechanisms of disease illness and serve as useful reference for the clinical diagnosis and treatment of COVID-19.


Subject(s)
Coronavirus Infections , Infections , COVID-19
8.
BMJ Open ; 11(6): e045317, 2021 06 02.
Article in English | MEDLINE | ID: covidwho-1255596

ABSTRACT

OBJECTIVE: We aimed to ascertain the trends of injury mortality during the COVID-19 period in southern China. METHODS: We conducted a population-based retrospective analysis to compare the mortality changes of all-cause injury and transport injuries, poisoning, falls, fire/heat/hot substances, drowning, self-harm and interpersonal violence, which were further stratified by sex and age. Comparisons were made between the COVID-19 period (between January 2020 and June 2020) and control period (between January 2019 and June 2019) in Guangdong province. We used the negative binomial models to explore the associations of deaths during the COVID-19 period, according to the different sex and age strata. RESULTS: The all-cause injury mortality in Guangdong province decreased significantly from 28.65 per 100 000 population during the control period to 23.24 per 100 000 population during COVID-19 pandemic period. Similar results were found in specific injury categories. Mortality of self-harm increased by 139.26% in the 10-14 year group during the COVID-19 period as compared with the control period. Although mortality changes in some groups were not statistically significant, some increases were noteworthy during the COVID-19 period (ie, self-harm, transport injury and falls) in the 70-79 year group. The corresponding increase in mortality rate was 16.83%, 3.32% and 4.92%, respectively. CONCLUSION: The mortality of all-cause injury, transport injury and drowning during the COVID-19 pandemic was consistently decreased. However, the increase in mortality associated with falls, fire/heat/hot substance injury and self-harm in specific age populations warrant the targeted control and prevention measures for the population at risk.


Subject(s)
COVID-19 , Suicide , Wounds and Injuries , China/epidemiology , Humans , Pandemics , Retrospective Studies , SARS-CoV-2
9.
Int J Clin Pract ; 75(8): e14319, 2021 Aug.
Article in English | MEDLINE | ID: covidwho-1223493

ABSTRACT

BACKGROUND: The impact of lockdown measures can be widespread, affecting both clinical and psychosocial aspects of health. This study aims to assess changes in health services access, self-care, behavioural, and psychological impact of COVID-19 and partial lockdown amongst diabetes patients in Singapore. METHODS: We conducted a cross-sectional online survey amongst people with diabetes with the Diabetes Health Profile-18 (DHP-18). Hierarchical regression analyses were performed for each DHP-18 subscale (Psychological Distress, Disinhibited Eating and Barriers to Activity) as dependent variables in separate models. RESULTS: Among 301 respondents, 45.2% were women, 67.1% of Chinese ethnicity, 24.2% were aged 40 to 49 years, 68.4% have Type 2 diabetes and 42.2% on oral medications alone. During the pandemic and the lockdown, nearly all respondents were able to receive care safely from the clinics they attend (94%) and obtain their medications and diabetes equipment and supplies (97%) when needed. Respondents reported less frequent engagement in physical activity (38%), checking of blood pressure (29%) and blood glucose (22%). Previous diagnosis of mental health conditions (ß = 9.33, P = .043), Type 1 diabetes (ß = 12.92, P = .023), number of diabetes-related comorbidities (ß = 3.16, P = .007) and Indian ethnicity (ß = 6.65, P = .034) were associated with higher psychological distress. Comorbidities were associated with higher disinhibited eating (ß = 2.49, P = .014) while ability to reach their doctor despite not going to the clinic is negatively associated with psychological distress (ß = -9.50 P = .002) and barriers to activity (ß = -7.53, P = .007). CONCLUSION: Health services access were minimally affected, but COVID-19 and lockdown had mixed impacts on self-care and management behaviours. Greater clinical care and attention should be provided to people with diabetes with multiple comorbidities and previous mental health disorders during the pandemic and lockdown.


Subject(s)
COVID-19 , Diabetes Mellitus, Type 2 , Self-Management , Communicable Disease Control , Cross-Sectional Studies , Diabetes Mellitus, Type 2/epidemiology , Diabetes Mellitus, Type 2/therapy , Female , Health Services Accessibility , Humans , SARS-CoV-2 , Singapore
10.
J Community Health ; 46(5): 903-912, 2021 10.
Article in English | MEDLINE | ID: covidwho-1092040

ABSTRACT

Early in the COVID-19 pandemic, Canadians faced much ambiguity in the public health messages around face mask use. As public health messaging plays a pivotal role in the provision of directives during a health crisis, this study examines Canadians' opinions on the early messaging they received regarding personal protection, especially around mask use, with the goal of identifying potential improvements to strengthen future health messaging. Nine online focus group interviews with 47 Canadians were conducted. These natural conversations focused on personal protective equipment (PPE) choices, mask-relevant public health information sources, and advice to Canadian authorities to improve public health messaging on mask use. Responses were imported into NVivo for thematic analysis. Four meta-themes of relevance were identified. Despite demonstrating trust in scientific evidence and public health authorities, the inconsistencies in public health messaging fostered confusion, and induced mistrust toward health professionals. Further, several information deficits were identified pertaining to the scientific efficacy, safe use, and disposal of masks. Rooted in loyalty to healthcare workers, these Canadians eschewed using medical grade masks during PPE shortages to ensure a sufficient supply for medical workers. The findings stress that consistency in public health messages should be prioritized, with necessary changes clearly justified and explained. More information should reach the public on the scientific benefits and proper use of masks. Public health recommendations should be evidence-based, simple, transparent, and realistic in the current circumstances to guide Canadians to make more informed personal protection choices in the rapidly evolving pandemic.


Subject(s)
COVID-19/prevention & control , Health Communication , Masks , Pandemics/prevention & control , COVID-19/epidemiology , Canada , Humans , Perception , Public Health , SARS-CoV-2 , Trust
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