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Journal of Phycology Jun 2024Cyanobacterial mats supplanting coral and spreading coral diseases in tropical reefs, intensified by environmental shifts caused by human-induced pressures, nutrient...
Cyanobacterial mats supplanting coral and spreading coral diseases in tropical reefs, intensified by environmental shifts caused by human-induced pressures, nutrient enrichment, and global climate change, pose grave risks to the survival of coral ecosystems. In this study, we characterized Okeanomitos corallinicola gen. and sp. nov., a newly discovered toxic marine heterocyte-forming cyanobacterium isolated from a coral reef ecosystem of the South China Sea. Phylogenetic analysis, based on the 16S rRNA gene and the secondary structure of the 16S-23S rRNA intergenic region, placed this species in a clade distinct from closely related genera, that is, Sphaerospermopsis stricto sensu, Raphidiopsis, and Amphiheterocytum. The O. corallinicola is a marine benthic species lacking gas vesicles, distinguishing it from other members of the Aphanizomenonaceae family. The genome of O. corallinicola is large and exhibits diverse functional capabilities, potentially contributing to the resilience and adaptability of coral reef ecosystems. In vitro assays revealed that O. corallinicola demonstrates notable cytotoxic activity against various cancer cell lines, suggesting its potential as a source of novel anticancer compounds. Furthermore, the identification of residual saxitoxin biosynthesis function in the genome of O. corallinicola, a marine cyanobacteria, supports the theory that saxitoxin genes in cyanobacteria and dinoflagellates may have been horizontally transferred between them or may have originated from a shared ancestor. Overall, the identification and characterization of O. corallinicola provides valuable contributions to cyanobacterial taxonomy, offering novel perspectives on complex interactions within coral reef ecosystems.
PubMed: 38943258
DOI: 10.1111/jpy.13473 -
Diabetology & Metabolic Syndrome Jun 2024
Correction: The Regulate your Sitting Time (RESIT) intervention for reducing sitting time in individuals with type 2 diabetes: findings from a randomised-controlled feasibility trial.
PubMed: 38943184
DOI: 10.1186/s13098-024-01384-y -
BMC Public Health Jun 2024Poor infant and child feeding practices, in combination with increased rates of infectious diseases, are the main immediate causes of malnutrition during the first two...
Minimum milk feeding frequency and its associated factors among non-breastfed children aged 6-23 months in sub-saharan Africa: a multilevel analysis of the recent demographic and health survey data.
BACKGROUND
Poor infant and child feeding practices, in combination with increased rates of infectious diseases, are the main immediate causes of malnutrition during the first two years of life. Non-breastfed children require milk and other dairy products, as they are rich sources of calcium and other nutrients. As far as our search is concerned, there is no evidence on the pooled magnitude and determinants of minimum milk feeding frequency among non-breastfed children in sub-Saharan Africa conducted using the most recent indicators for assessing infant and young child feeding practices published in 2021. Therefore, this study is intended to determine the magnitude and associated factors of minimum milk feeding frequency among non-breastfed children aged 6-23 months in sub-Saharan Africa using the most recent guideline and demographic and health survey dataset.
METHODS
Data from the most recent health and demographic surveys, which were carried out between 2015 and 2022 in 20 sub-Saharan African countries, were used. The study comprised a weighted sample consisting of 13,315 non-breastfed children between the ages of 6 and 23 months. STATA/SE version 14.0 statistical software was used to clean, recode, and analyze data that had been taken from DHS data sets. Utilizing multilevel mixed-effects logistic regression, the factors associated with the outcome variable were identified. Model comparison and fitness were assessed using deviance (-2LLR), likelihood ratio test, median odds ratio, and intra-class correlation coefficient. Finally, variables with a p-value < 0.05 and an adjusted odds ratio with a 95% confidence interval were declared statistically significant.
RESULTS
The pooled magnitude of minimum milk feeding frequency among non-breastfed children aged 6-23 months in sub-Saharan African countries was 12.39% (95% CI: 11.85%, 12.97%). Factors like maternal educational level [AOR = 1.61; 95% CI (1.35, 1.91)], marital status of the mother [AOR = 0.77; 95% CI (0.67, 0.89)], maternal working status [AOR = 0.80; 95% CI (0.71, 0.91)], media exposure [AOR = 1.50; 95% CI (1.27, 1.77)], wealth index [AOR = 1.21; 95% CI (1.03, 1.42)], place of delivery [AOR = 1.45; 95% CI (1.22, 1.72)], ANC visit attended during pregnancy [AOR = 0.49; 95% CI (0.39, 0.62)], PNC checkup [AOR = 1.57; 95% CI (1.40, 1.76)], child's age [AOR = 0.70; 95% CI (0.53, 0.93)], and residence [AOR = 2.15; 95% CI (1.87, 2.46)] were significantly associated with minimum milk feeding frequency.
CONCLUSIONS
In sub-Saharan Africa, the proportion of minimum milk feeding frequency among non-breastfed children aged between 6 and 23 months was low. The likelihood of minimum milk feeding frequency increases with high levels of education, unemployment, media exposure, rich wealth status, being unmarried, having a child born in a health facility, getting PNC checks, being between 6 and 8 months old, and living in an urban area. Hence, promoting women's education, increasing the economic status of the household, disseminating nutrition information through media, strengthening maternal health service utilization like health facility delivery and PNC services, and giving prior attention to mothers with older children and from rural areas are strongly recommended.
Topics: Humans; Africa South of the Sahara; Infant; Female; Male; Health Surveys; Multilevel Analysis; Feeding Behavior; Adult; Breast Feeding; Milk
PubMed: 38943130
DOI: 10.1186/s12889-024-19275-2 -
BMC Public Health Jun 2024Owing to the introduction of highly active antiretroviral therapy (HAART), the trajectory of mortality and morbidity associated with human immunodeficiency virus (HIV)... (Meta-Analysis)
Meta-Analysis
Highly active antiretroviral therapy is necessary but not sufficient. A systematic review and meta-analysis of mortality incidence rates and predictors among HIV-infected adults receiving treatment in Ethiopia, a surrogate study for resource-poor settings.
BACKGROUND
Owing to the introduction of highly active antiretroviral therapy (HAART), the trajectory of mortality and morbidity associated with human immunodeficiency virus (HIV) infection has significantly decreased in developed countries. However, this remains a formidable public health challenge for people living with HIV in resource-poor settings. This study was undertaken to determine the pooled person-time incidence rate of mortality, analyze the trend, and identify predictors of survival among HIV-infected adults receiving HAART.
METHODS
Quantitative studies were searched in PubMed, Embase, Scopus, Google Scholar, African Journals Online, and Web of Science. The Joana Briggs Institute critical appraisal tool was used to assess the quality of the included articles. The data were analyzed using the random-effects Dersimonian-Laird model.
RESULTS
Data abstracted from 35 articles involving 39,988 subjects were analyzed. The pooled person-time incidence rate of mortality (all-cause) was 4.25 ([95% uncertainty interval (UI), 3.65 to 4.85]) per 100 person-years of observations. Predictors of mortality were patients aged ≥ 45 years (hazard ratio (HR), 1.70 [95% UI,1.10 to 2.63]), being female (HR, 0.82 [95% UI, 0.70 to 0.96]), history of substance use (HR, 3.10 [95% UI, 1.31 to 7.32]), HIV positive status non disclosure (HR, 3.10 [95% UI,1.31 to 7.32]), cluster of differentiation 4 + T cell - count < 200 cells/mm3 (HR, 3.23 [95% UI, [2.29 to 4.75]), anemia (HR, 2.63 [95% UI, 1.32 to 5.22]), World Health Organisation classified HIV clinical stages III and IV (HR, 3.02 [95% UI, 2.29 to 3.99]), undernutrition (HR, 2.24 [95% UI, 1.61 to 3.12]), opportunistic infections (HR, 1.89 [95% UI, 1.23 to 2.91]), tuberculosis coinfection (HR, 3.34 [95% UI, 2.33 to 4.81]),bedridden or ambulatory (HR,3.30 [95% UI, 2.29 to 4.75]), poor treatment adherence (HR, 3.37 [95% UI,1.83 to 6.22]), and antiretroviral drug toxicity (HR, 2.60 [95% UI, 1.82 to 3.71]).
CONCLUSION
Despite the early introduction of HAART in Ethiopia, since 2003, the mortality rate has remained high. Therefore, guideline-directed intervention of identified risk factors should be in place to improve overall prognosis and increase quality-adjusted life years.
Topics: Humans; HIV Infections; Antiretroviral Therapy, Highly Active; Ethiopia; Incidence; Adult; Female; Male
PubMed: 38943123
DOI: 10.1186/s12889-024-19268-1 -
BMC Geriatrics Jun 2024Critical wandering occurs when an individual living with dementia leaves a location and is unaware of place or time. Critical wandering incidents are expected to...
BACKGROUND
Critical wandering occurs when an individual living with dementia leaves a location and is unaware of place or time. Critical wandering incidents are expected to increase with the growing prevalence of persons living with dementia worldwide. We investigated the association between demographic, psychopathological, and environmental factors and a history of critical wandering among Medic-Alert subscribers, both with and without dementia.
METHODS
Our retrospective study included data of 25,785 Canadian Medic-Alert subscribers who were aged 40 years or older. We used multivariable logistic regression analysis to examine the associations between a history of critical wandering and dementia status as psychopathological independent variable, controlled by demographic (age, ethnic background, sex at birth, Canadian languages spoken) and environmental (living arrangement, population density) factors.
RESULTS
The overall study sample comprised of mainly older adults (77.4%). Medic-Alert subscribers who were older, male sex at birth, living with dementia, of a minority ethnic group and who did not have proficiency in an official Canadian language had a higher likelihood of a history of critical wandering. Residing in an urban environment, in an institution or with a family member, were environmental factors associated with a higher likelihood of a history of critical wandering.
CONCLUSIONS
People living with dementia experience a higher likelihood of a history of critical wandering compared to those without dementia. Medic-Alert and similar organizations can develop algorithms based on the associated factors that can be used to flag risks of critical wandering. This can inform preventative strategies at the individual and community levels.
Topics: Humans; Male; Female; Retrospective Studies; Aged; Dementia; Aged, 80 and over; Middle Aged; Wandering Behavior; Adult; Risk Factors; Canada
PubMed: 38943089
DOI: 10.1186/s12877-024-05162-3 -
BMC Pregnancy and Childbirth Jun 2024In the United States, maternal health inequities disproportionately affect Global Majority (e.g., Asian, Black, and Hispanic) populations. Despite a substantial body of...
In the United States, maternal health inequities disproportionately affect Global Majority (e.g., Asian, Black, and Hispanic) populations. Despite a substantial body of research underscoring the influence of racism on these inequities, little research has examined how experiences of gendered racial microaggressions during pregnancy and birth impact racially and ethnically diverse Global Majority pregnant and birthing people in obstetric hospital settings. We evaluated the psychometric properties of an adapted version of Lewis & Neville's Gendered Racial Microaggressions Scale, using data collected from 417 Global Majority birthing people. Findings from our study indicate that our adapted GRMS is a valid tool for assessing the experiences of gendered racial microaggressions in hospital-based obstetric care settings among Global Majority pregnant and birthing people whose preferred languages are English or Spanish. Item Response Theory (IRT) analysis demonstrated high construct validity of the adapted GRMS scale (Root Mean Square Error of Approximation = 0.1089 (95% CI 0.0921, 0.1263), Comparative Fit Index = 0.977, Standardized Root Mean Square Residual = 0.075, log-likelihood c2 = -85.6, df = 8). IRT analyses demonstrated that the unidimensional model was preferred to the bi-dimensional model as it was more interpretable, had lower AIC and BIC, and all items had large discrimination parameters onto a single factor (all discrimination parameters > 3.0). Given that we found similar response profiles among Black and Hispanic respondents, our Differential Item Functioning analyses support validity among Black, Hispanic, and Spanish-speaking birthing people. Inter-item correlations demonstrated adequate scale reliability, α = 0.97, and empirical reliability = 0.67. Pearsons correlations was used to assess the criterion validity of our adapted scale. Our scale's total score was significantly and positively related to postpartum depression and anxiety. Researchers and practitioners should seek to address instances of gendered racial microaggressions in obstetric settings, as they are manifestations of systemic and interpersonal racism, and impact postpartum health.
Topics: Humans; Female; Psychometrics; Racism; Pregnancy; Adult; United States; Reproducibility of Results; Surveys and Questionnaires; Hispanic or Latino; Male; Young Adult; Healthcare Disparities; Aggression; Black or African American; Delivery, Obstetric
PubMed: 38943057
DOI: 10.1186/s12884-024-06642-5 -
Translational Stroke Research Jun 2024Blood components released by erythrolysis play an important role in secondary brain injury and posthemorrhagic hydrocephalus (PHH) after intraventricular hemorrhage...
Blood components released by erythrolysis play an important role in secondary brain injury and posthemorrhagic hydrocephalus (PHH) after intraventricular hemorrhage (IVH). The current study examined the impact of N-acetylheparin (NAH), a complement inhibitor, on early erythrolysis, PHH and iron accumulation in aged rats following IVH. This study, on 18-months-old male Fischer 344 rats, was in 3 parts. First, rats had an intracerebroventricular injection of autologous blood (IVH) mixed with NAH or saline, or saline alone. After MRI at four hours, Western blot and immunohistochemistry examined complement activation and electron microscopy choroid plexus and periventricular damage. Second, rats had an IVH with NAH or vehicle, or saline. Rats underwent serial MRI at 4 h and 1 day to assess ventricular volume and erythrolysis. Immunohistochemistry and H&E staining examined secondary brain injury. Third, rats had an IVH with NAH or vehicle. Serial MRIs on day 1 and 28 assessed ventricular volume and iron accumulation. H&E staining and immunofluorescence evaluated choroid plexus phagocytes. Complement activation was found 4 h after IVH, and co-injection of NAH inhibited that activation. NAH administration attenuated erythrolysis, reduced ventricular volume, alleviated periventricular and choroid plexus injury at 4 h and 1 day after IVH. NAH decreased iron accumulation, the number of choroid plexus phagocytes, and attenuated hydrocephalus at 28 days after IVH. Inhibiting complement can reduce early erythrolysis, attenuates hydrocephalus and iron accumulation after IVH in aged animals.
PubMed: 38943026
DOI: 10.1007/s12975-024-01273-6 -
International Journal of Behavioral... Jun 2024There is a scarcity of research on the potential impact of disclosing HIV status to friends and family in moderating the adverse effects of discrimination on the mental...
Investigating the Moderating Effect of HIV Status Disclosure on the Link Between Discrimination Experience and Psychological Distress Among People Living with HIV in Japan Infected Through Sexual Contact.
BACKGROUND
There is a scarcity of research on the potential impact of disclosing HIV status to friends and family in moderating the adverse effects of discrimination on the mental health of people living with HIV (PLWH). This study assessed the experiences of discrimination and HIV status disclosure among PLWH in Japan, and evaluated their potential associations with psychological distress.
METHOD
Data were derived from a nationwide cross-sectional survey of PLWH conducted in Japan between 2019 and 2020. The interaction effects of HIV-related discrimination and HIV status disclosure on the psychological distress were examined using logistic and linear regression analyses.
RESULTS
The median age of the 804 respondents was 46 years old. Most respondents were male and 85.4% (687/804) identified as homosexuals or bisexuals. A total of 12.7% (102/804) of the respondents reported that they had recently experienced discrimination because of their HIV status. Experience of HIV-related discrimination was independently associated with high psychological distress (adjusted OR 2.02; 95% CI, 1.15-3.57), and HIV status disclosure to friends partially weakened the association between discrimination and the level of psychological distress (regression coefficient -3.115; p = 0.004).
CONCLUSION
While measures that aim to end discrimination remain vital, increasing the opportunities of PLWH to communicate with friends they feel comfortable disclosing their HIV status may also be helpful in protecting their mental health.
PubMed: 38942978
DOI: 10.1007/s12529-024-10304-3 -
Pharmaceutical Medicine Jun 2024To optimize cost effectiveness, engagement, reach, inclusivity, insight quality and quantity, and participant satisfaction of pharmaceutical meetings such as advisory...
BACKGROUND
To optimize cost effectiveness, engagement, reach, inclusivity, insight quality and quantity, and participant satisfaction of pharmaceutical meetings such as advisory boards, the organizers have to carefully weigh the pros and cons of the available meeting formats (in-person, synchronous virtual, asynchronous, hybrid). While budgets and organizer preferences are typically key considerations, participants' preferences are rarely factored into this decision. Hence, the objectives of this study were to gain a better understanding of participants' preferences for meeting format, frequency, and updates.
METHODS
Between September 1, 2022, and December 31, 2023, health care providers (HCPs) participating in asynchronous advisory board touchpoints on a proprietary virtual platform were asked to answer between 1-4 survey questions, selected at the pharmaceutical organizers' discretion.
RESULTS
A total of 443 HCPs answered the survey. Among respondents, 76.0% preferred meetings with a virtual component. Overall, the most popular meeting approach was a combination of synchronous and asynchronous virtual meetings over time (34.6%). The preference for hybrid meetings increased from 14.3 to 27.3% between 2022 and 2023. The preferred meeting frequency was 2-3 times a year (39.2%), followed by quarterly (33.2%). According to the respondents, the most important benefits of virtual over in-person meetings include: (i) superior convenience and flexibility (81.0%), (ii) avoidance of time off work and away from patients (62.3%), (iii) the low environmental impact and carbon footprint (32.5%).
CONCLUSIONS
Although these findings are preliminary and from a small dataset, they highlight the importance of customizing each pharmaceutical meeting or program with the target audience in mind.
PubMed: 38942923
DOI: 10.1007/s40290-024-00531-0 -
Social Psychiatry and Psychiatric... Jun 2024Paranoid ideation is common among adolescents, yet little is known about the precursors. Using a novel immersive virtual reality (VR) paradigm, we tested whether...
PURPOSE
Paranoid ideation is common among adolescents, yet little is known about the precursors. Using a novel immersive virtual reality (VR) paradigm, we tested whether experiences of bullying, and other interpersonal/threatening events, are associated with paranoid ideation to a greater degree than other types of (i) non-interpersonal events or (ii) adverse childhood experiences.
METHODS
Self-reported exposure to adverse life events and bullying was collected on 481 adolescents, aged 11-15. We used mixed effects (multilevel) linear regression to estimate the magnitude of associations between risk factors and paranoid ideation, assessed by means of adolescents' reactions to ambiguously behaving avatars in a VR school canteen, adjusting for putative confounders (gender, year group, ethnicity, free school meal status, place of birth, family mental health problems).
RESULTS
Lifetime exposure to interpersonal/threatening events, but not non-interpersonal events or adverse circumstances, was associated with higher levels of state paranoid ideation, with further evidence that the effect was cumulative (1 type: ϐ 0.07, 95% CI -0.01-0.14; 2 types: ϐ 0.14, 95% CI 0.05-0.24; 3 + types: ϐ 0.24, 95% CI 0.12-0.36). More tentatively, for girls, but not boys, recent bullying was associated with heightened paranoid ideation with effect estimates ranging from ϐ 0.06 (95% CI -0.02-0.15) for physical bullying to ϐ 0.21 (95% CI 0.10-0.32) for cyber bullying.
CONCLUSIONS
Our data suggest a degree of specificity for adversities involving interpersonal threat or hostility, i.e. those that involve unwanted interference and/or attempted control of an individual's personal boundaries being associated with heightened levels of state paranoid ideation among adolescents.
PubMed: 38942902
DOI: 10.1007/s00127-024-02701-6