Your browser doesn't support javascript.
Show: 20 | 50 | 100
Results 1 - 20 de 257
Filter
1.
Intern Med J ; 53 Suppl 1: 5-57, 2023 Apr.
Article in English | MEDLINE | ID: covidwho-20244640
2.
Psychol Rep ; : 332941231181485, 2023 Jun 02.
Article in English | MEDLINE | ID: covidwho-20244165

ABSTRACT

This study examines differences in college students' responses to COVID-19-related stress over time, beginning in fall 2019 before the pandemic and continuing through fall 2022. A total of 957 students completed measures of motivation, sense of purpose, academic adjustment, grit, and COVID-related stress across 7 semesters. Results indicated that motivation stayed steady throughout much of the pandemic as compared to the fall 2019 semester, with the exception of the spring 2022 semester. Academic adjustment, grit, and sense of purpose all fluctuated during the pandemic. After the onset of COVID-19, students reported high levels of stress and reported that they were experiencing higher than usual levels of stress. However, as the pandemic continued, students continued to report high stress levels, but no longer reported that the stress was unusual. That is, over time, high levels of stress and anxiety related to COVID-19 became viewed as normal. This pattern of results suggests that the student response to the pandemic has differed over time and, since COVID-19 remains prevalent, highlights the need for colleges to continue to be prepared to address students' COVID-related adjustment and well-being.

6.
Nat Commun ; 14(1): 2952, 2023 05 24.
Article in English | MEDLINE | ID: covidwho-20235307

ABSTRACT

Despite intensive research since the emergence of SARS-CoV-2, it has remained unclear precisely which components of the early immune response protect against the development of severe COVID-19. Here, we perform a comprehensive immunogenetic and virologic analysis of nasopharyngeal and peripheral blood samples obtained during the acute phase of infection with SARS-CoV-2. We find that soluble and transcriptional markers of systemic inflammation peak during the first week after symptom onset and correlate directly with upper airways viral loads (UA-VLs), whereas the contemporaneous frequencies of circulating viral nucleocapsid (NC)-specific CD4+ and CD8+ T cells correlate inversely with various inflammatory markers and UA-VLs. In addition, we show that high frequencies of activated CD4+ and CD8+ T cells are present in acutely infected nasopharyngeal tissue, many of which express genes encoding various effector molecules, such as cytotoxic proteins and IFN-γ. The presence of IFNG mRNA-expressing CD4+ and CD8+ T cells in the infected epithelium is further linked with common patterns of gene expression among virus-susceptible target cells and better local control of SARS-CoV-2. Collectively, these results identify an immune correlate of protection against SARS-CoV-2, which could inform the development of more effective vaccines to combat the acute and chronic illnesses attributable to COVID-19.


Subject(s)
COVID-19 , SARS-CoV-2 , Humans , CD8-Positive T-Lymphocytes , Seroconversion , Nucleocapsid
10.
Ter Arkh ; 94(12): 1421-1425, 2023 Jan 16.
Article in Russian | MEDLINE | ID: covidwho-20241378

ABSTRACT

Cell death is an important feature of the development of multicellular organisms, a critical factor in the occurrence of cardiovascular diseases. Understanding the mechanisms that control cell death is crucial to determine its role in the development of the pathological process. However, the most well-known types of cell death cannot fully explain the pathophysiology of heart disease. Understanding how cardiomyocytes die and why their regeneration is limited is an important area of research. Ferroptosis is an iron-dependent cell death that differs from apoptosis, necrosis, autophagy, and other forms of cell death in terms of morphology, metabolism, and protein expression. Ferroptotic cell death is characterized by the accumulation of reactive oxygen species resulting from lipid peroxidation and subsequent oxidative stress, which can be prevented by iron chelates (eg, deferoxamine) and small lipophilic antioxidants (eg, ferrostatin, liproхstatin). In recent years, many studies have been carried out on ferroptosis in the context of the development of atherosclerosis, myocardial infarction, heart failure, and other diseases. In addition to cardiovascular diseases, the review also presents data on the role of ferroptosis in the development of other socially significant diseases, such as COVID-19, chronic obstructive pulmonary disease. With the study of ferroptosis, it turned out that ferroptosis participates in the development of bacterial infection associated with the persistence in the host body of Pseudomonas aeruginosa. The review summarizes the recent advances in the study of ferroptosis, characterizing this type of cell death as a novel therapeutic target.


Subject(s)
COVID-19 , Cardiovascular Diseases , Ferroptosis , Humans , Ferroptosis/physiology , Cardiovascular Diseases/etiology , Apoptosis , Cell Death , Reactive Oxygen Species/metabolism
11.
Curr Psychol ; : 1-15, 2023 May 31.
Article in English | MEDLINE | ID: covidwho-20240892

ABSTRACT

With schools closed due to the COVID-19, many children have been exposed to media devices for learning and entertainment, raising concerns over excessive screen time for young children. The current study examined how preschoolers' screen time was associated with their family characteristics and anxiety/withdrawal and approaches to learning during the COVID-19 pandemic. Participants were 764 caregivers of 3- to 6-year-old children (mean age = 59.07 months, SD = 12.28 months; 403 boys and 361 girls) from nine preschools in Wuhan, China, where the pandemic started. The effects of family characteristics on children's screen time during the pandemic outbreak and the associations between screen time and children's anxiety/withdrawal and approaches to learning were examined using path analysis. The results showed that children who spent more time on interactive screen use (e.g., playing with tablets) showed higher levels of anxiety/withdrawal and fewer positive learning behaviors. Unexpectedly, children who spent more time on noninteractive screen use (e.g., watching TV) showed lower levels of anxiety/withdrawal. Additionally, children's screen time was related to family characteristics: children living in more chaotic families with fewer screen time restrictions spent more time on screen use after the pandemic outbreak. The findings suggest that young children's frequent use of interactive screens, such as tablets and smartphones, might be harmful to their learning and wellbeing during the pandemic. To mitigate the potential negative effects, it is essential to manage the screen time of preschoolers by establishing rules for their interactive screen use and improving the household routines related to the overall screen use.

13.
Vaccines (Basel) ; 11(5)2023 May 22.
Article in English | MEDLINE | ID: covidwho-20239512

ABSTRACT

This study summarizes progress made in rolling out COVID-19 vaccinations in the African region in 2022, and analyzes factors associated with vaccination coverage. Data on vaccine uptake reported to the World Health Organization (WHO) Regional Office for Africa by Member States between January 2021 and December 2022, as well as publicly available health and socio-economic data, were used. A negative binomial regression was performed to analyze factors associated with vaccination coverage in 2022. As of the end of 2022, 308.1 million people had completed the primary vaccination series, representing 26.4% of the region's population, compared to 6.3% at the end of 2021. The percentage of health workers with complete primary series was 40.9%. Having carried out at least one high volume mass vaccination campaign in 2022 was associated with high vaccination coverage (ß = 0.91, p < 0.0001), while higher WHO funding spent per person vaccinated in 2022 was correlated with lower vaccination coverage (ß = -0.26, p < 0.03). All countries should expand efforts to integrate COVID-19 vaccinations into routine immunization and primary health care, and increase investment in vaccine demand generation during the transition period that follows the acute phase of the pandemic.

16.
Health Place ; 83: 103055, 2023 Jun 11.
Article in English | MEDLINE | ID: covidwho-20237437

ABSTRACT

Immigrants (foreign-born United States [US] citizens) generally have lower utilization of mental health services compared with US-born counterparts, but extant studies have not investigated the disparities in mental health service utilization within immigrant population nationwide over time. Leveraging mobile phone-based visitation data, we estimated the average mental health utilization in contiguous US census tracts in 2019, 2020, and 2021 by employing two novel outcomes: mental health service visits and visit-to-need ratio (i.e., visits per depression diagnosis). We then investigated the tract-level association between immigration concentration and mental health service utilization outcomes using mixed-effects linear regression models that accounted for spatial lag effects, time effects, and covariates. This study reveals spatial and temporal disparities in mental health service visits and visit-to-need ratio among different levels of immigrant concentration across the US, both before and during the pandemic. Tracts with higher concentrations of Latin American immigrants showed significantly lower mental health service utilization visits and visit-to-need ratio, particularly in the US West. Tracts with Asian and European immigrant concentrations experienced a more significant decline in mental health service utilization visits and visit-to-need ratio from 2019 to 2020 than those with Latin American concentrations. Meanwhile, in 2021, tracts with Latin American concentrations had the least recovery in mental health service utilization visits. The study highlights the potential of geospatial big data for mental health research and informs public health interventions.

17.
Intern Med ; 2023 May 31.
Article in English | MEDLINE | ID: covidwho-20237144
19.
Indian J Crit Care Med ; 27(5): 370, 2023 May.
Article in English | MEDLINE | ID: covidwho-20236196

ABSTRACT

How to cite this article: Govindasaami V. Correspondence to "Covid-19-associated Pulmonary Aspergillosis: A Case Series" by Sharma et al. Indian J Crit Care Med 2023;27(5):370.

SELECTION OF CITATIONS
SEARCH DETAIL