Risk Factors Associated with Mental Health Outcomes during the Post-Quarantine Period of the COVID-19 in Saudi Population: A Cross-Sectional Study.

Background: The present study aims to evaluate the mental health symptoms in the Saudi population during the COVID-19 post-quarantine period and to identify the risk factors associated with the severity of the symptoms. Methods: Anxiety was measured with the 7-item Generalized Anxiety Disorder questionnaire, depression with the 9-item Patient Health Questionnaire, insomnia with the 7-item Insomnia Severity Index, and distress with the 22-item Impact Event Scale-Revised questionnaire. Results: A total of 885 respondents answered the online questionnaires. The majority were women (72.8%), married (67.4%), have children (59.3%), and with high education levels (93.2%). The results showed that a high number of the respondents experienced mild to severe symptoms of anxiety (533; 60.3%), depression (659; 47.5%), insomnia (510; 57.6%), and distress (645; 72.9%). The multivariable logistic analysis demonstrated severe anxiety and insomnia among women (OR = 1.71; 95% CI 1.07−1.98; p < 0.001 and OR = 2.00; 95% CI 1.78−2.35; p = 0.002); severe depression among those under 35 (OR = 2.06; 95% CI 1.97−2.44; p = 0.001; and severe distress among non-Saudi respondents (OR = 1.71; 95% CI 1.09−1.93; p < 0.001). Conclusions: The results might help in establishing precautionary measures for protecting the mental health of the general population during pandemics.

Parents' Willingness to Vaccinate Children against COVID-19 in Saudi Arabia: A Cross-Sectional Study.

OBJECTIVES: The present study aimed to investigate parents' willingness to vaccinate their children under the age of 18 with a COVID-19 vaccine. METHODS: This cross-sectional study was conducted in Saudi Arabia from January 2021 to March 2021. The univariate analysis using Mann-Whitney U-test, t-test, and chi-squared/Fisher's exact test was performed to identify sociodemographic factors associated with the acceptance of COVID-19 vaccine in children. Factors with statistical significance (p < 0.05) were analyzed using multivariate regression analysis to determine the variables affecting parents' decisions to vaccinate children. RESULTS: Overall, 44% (167) of parents reported that they would accept vaccinating their children with a COVID-19 vaccine. Young (86; 22.7%), married (135; 35.6%), and Saudi (114; 30%) parents seemed to be more concerned about their children being infected. Parents who intended to vaccinate themselves (OR: 0.599, 95% CI: 0.367-0.980) and who trust the healthcare system (OR: 0.527, 95% CI: 0.327-0.848) reported greater acceptance of children's vaccination. Among parents, the most frequent (40.9%) reason for vaccinating children was to prevent infection in other family members. What may underlie this result is that some parents understand that children can carry pathogens from persons in school to thoseat home. The most frequent (22.2%) reason for refusing vaccination was concerns about the side effects of the vaccine. CONCLUSIONS: Parents have differing opinions on frequencies and risks of coronavirus disease transmission and medical complications and of effectiveness and adverse effects of a vaccine. These results could be of use in designing public health information campaigns and health promotion programs based on perceived parental behavior and positive attitudes.

Biomarkers responses and polybrominated diphenyl ethers and their methoxylated analogs measured in Sparus aurata from the Lagoon of Bizerte, Tunisia.

This study aimed to the examination of the levels and effects of organobromine compounds (polybrominated diphenyl ethers: PBDEs and methoxylated brominated diphenyl ethers: MeO-PBDEs), in Sparus aurata native to the Lagoon of Bizerte. For that, different biomarkers of exposure (somatic indices, superoxide dismutase, and catalase activities) and effect (malondialdehyde level, histopathologic alterations, and DNA damage) as well as pollutant levels were measured in specimens collected from this impacted ecosystem and the Mediterranean Sea as a reference site. Bizerte Lagoon PBDE fish levels were higher than the Mediterranean Sea, whereas MeO-PBDEs were higher in the reference site. Fish from Bizerte Lagoon presented a higher hepatosomatic index, lower catalase and superoxide dismutase activity, higher level of malondialdehyde, and higher percentage of DNA tail in comparison to fish from the reference area. The histological study of the liver indicated substantial lesions in fish from the polluted site. The results showed strong positive correlations between the concentrations of the PBDE or MeO-PBDE and the MDA and DNA tail % levels and negative correlations for the activities of enzymes of SOD and CAT. Consequently, these findings could suggest a potential link between exposure to these pollutants and the observed biomarker responses in the Bizerte Lagoon seabream. Taken together, these results highlight the importance of biomarker selection and the selected sentinel fish species as useful tools for biomonitoring of aquatic pollution.

Socio-Demographics Correlate of COVID-19 Vaccine Hesitancy During the Second Wave of COVID-19 Pandemic: A Cross-Sectional Web-Based Survey in Saudi Arabia.

Background: The Coronavirus disease 2019 (COVID-19) pandemic is considered a major global public health threat affecting across the life course and socioeconomic aspects of life. Global acceptance to an effective vaccine is the most anticipated resolution. This study aims to evaluate intent to be vaccinated among public in Saudi Arabia during the second wave of the COVID-19 pandemic. Methods: A cross-sectional web-based study was designed in Saudi Arabia. Study participants (N = 658) were recruited through snowball sampling. The SurveyMonkey platform was used to record the response. Cross-tabulation was performed by participants' intention to vaccinate against COVID-19 virus with sociodemographic characteristics and respondents' risk perception toward COVID-19, trust in the healthcare system, and their history of vaccine hesitancy behavior. Multivariable logistic regression analysis was performed to compute the predictors of vaccination intention among the study participants. Results: Six hundred fifty-eight participants completed the survey (females = 47.4%). Of the 658 participants, 351 (53.3%) have shown intent to be vaccinated. Five hundred nineteen (78.8%) of the participants were reported to be at high risk of COVID-19, and 307 (46.6%) were reported to trust the healthcare system in the country. The multivariable analysis shows respondents with a high-risk perception (OR: 2.27, 95% CI: 1.49-3.48); higher trust in the healthcare system (OR: 3.24, 95% CI: 2.32-4.61) was found to be the significant factor affecting the decision in acceptance of the COVID-19 vaccine in Saudi Arabia. Conclusion: Participants reported high knowledge toward COVID-19 virus, and vaccine developments. About half (46.6%) of the study participants reported refusal/hesitancy toward the vaccine during the second wave of the pandemic in Saudi Arabia. The study highlighted that higher risk perception and higher trust in the healthcare system were found to be the main reasons for participants' intentions behind the vaccination.

Study of the genotoxic and cytotoxic effects of the α-, ß-, and γ- Hexachlorocyclohexane isomers in human lymphocyte cells using the cytokinesis-block micronucleus assay.

The genotoxic potential of hexachlorocyclohexane (HCH) isomers (α-, ß-, and γ-) which are organochlorine pesticides was tested in peripheral blood lymphocyte cultures from two donors by using the cytokinesis-block micronucleus assay. Micronucleus (MN) frequency, binucleated cells with micronucleus (BNMN), and cytokinesis-blocked proliferation index (CBPI) were determined as genotoxic and cytotoxic endpoints. At the concentration ranges tested (12.5-100 µg.L -1), all HCH isomers induced dose-dependent cytotoxic effects, γ-HCH being the most toxic. This isomer was also able to induce significant increase in MN frequency and BNMN cells indicating a genotoxic potential at 50 and 100 µg.L -1. The genotoxic test of ß-HCH showed a positive induction of MN and BNMN cells at the highest concentration of 100 µg.L -1 and a significant cytotoxicity at 50 µg.L -1. Under the experimental condition used, α-HCH was unable to induce any significant increase in MN frequency confirming that α-HCH is a non-genotoxic agent.

Oxidative stress, genotoxicity and histopathology biomarker responses in Mugil cephalus and Dicentrarchus labrax gill exposed to persistent pollutants. A field study in the Bizerte Lagoon: Tunisia.

The use of biomarkers has become an important tool for modern environmental assessment as they can help to predict pollutants involved in the monitoring program. Despite the importance of fish gill in several functions (gaseous exchange, osmotic and ionic regulation, acid-base balance and nitrogenous waste) its use in coastal water biomonitoring focusing on protection and damage is scarce. This field study investigates biochemical (catalase, superoxide dismutase, lipid peroxidation), molecular (DNA integrity) and morphological (histology) parameters in gill of mullet (Mugil cephalus) and sea bass (Dicentrarchus labrax) and originating from Bizerte lagoon (a coastal lagoon impacted by different anthropogenic activities) and from the Mediterranean Sea (a reference site). Remarkable alterations in the activities of oxidative stress enzymes and DNA integrity in the tissue of the two studied fish species were detected in Bizerte Lagoon. The study of histopathological alterations of gills in both two fish species from Bizerte Lagoon suggest thickening of primary lamellae, cellular hyperplasia, aneurism, curving, shortening and fusion of secondary lamellae. The adopted approach, considering simultaneously protection responses and damaging effects, revealed its usefulness on the pollution assessment.

Time course of organochlorine pesticides and polychlorinated biphenyls in breast-feeding mothers throughout the first 10 months of lactation in Tunisia.

Organochorine (OCs) residues were measured in human breast milk samples from four Tunisian women. Month-mix samples composed of weekly collected breast milk samples were analyzed over the lactation period between 3 days after delivery and 10 months post-partum. The concentrations of dichlorodiphenytrichloroethane and its metabolites (DDTs), hexachlorobenzene (HCB), hexachlorocyclohexane isomers (HCHs), dieldrin, and 20 polychlorinated biphenyl congeners (PCBs) were determined by gas chromatography with electron capture detection. The variation of OC residue levels in human milk was investigated for each woman individually. The average p,p'-DDE and p,p'-DDT concentrations declined from 661- and 438-ng g(-1) fat basis at day 3 to 77- and 106-ng g(-1) fat basis after 8 months, respectively. No essential changes in HCB, HCHs, dieldrin, and total PCBs concentrations in human breast milk occurred over the lactation periods investigated; the concentrations remained either relatively constant or show no significant weak decrease.

Genotoxicity of the organochlorine pesticides 1,1-dichloro-2,2- bis(p-chlorophenyl)ethylene (DDE) and hexachlorobenzene (HCB) in cultured human lymphocytes.

The possible genotoxic potential of 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (DDE), which is a metabolite of dichlorobiphenyltrichloroetane (DDT), and hexachlorobenzene (HCB), which are organochlorine pesticides have been evaluated in vitro by using human lymphocytes as test system. Genetic damage was determined by scoring the frequency of micronuclei (MN) in primary lymphocyte cultures obtained from different donors. The results indicated that, under the experimental conditions used, the DDT metabolite DDE was able to induce significant increases in the frequency of micronucleated cells, which indicate a certain clastogenic and/or aneugenic potential. DDE was tested in the range of 10-80 mM, but the only concentration producing a significant genotoxic effect was 80 mM. On the other hand, HCB was unable to induce a significant increase in the MN frequency in the range of concentrations assayed, from 0.005 to 0.1mM. The selected concentrations of DDE and HCB were chosen according to their toxicity in cell blood cultures; higher concentrations reduced significantly cell proliferation and produced a low frequency of binucleated cells. In conclusion, the results indicate that a genotoxic risk is associated with the exposure to DDE at concentrations 80 mM and above.