Objectives: To assess the awareness of patients with multiple sclerosis about the relationship between smoking and multiple sclerosis in Saudi Arabia. Methods: A descriptive cross-sectional study was carried out in 2018 for 162 patients who are attending a tertiary hospital in Jeddah, Kingdom of Saudi Arabia. Self-administered questionnaire and telephone-based interview were used to collect the data. The Analysis was carried out through a statistical package for the social sciences)SPSS(software version 21 by using chi-square. Results: A total of 162 patients responded to the questionnaire)response rate, 58.1%(. Among the respondents, 56 were current smokers, and 41 of them were males. Thirty-nine patients had a previous cessation attempt, and in 64.1% of the cases, it was mainly a self-made decision. Doctors counseled only 52.7% of the active smokers regarding the effect of smoking on the progression of their disease. Conclusion: Results indicate that there a is low level of awareness regarding the risk of smoking on multiple sclerosis. Therefore, educational programs and campaigns would be beneficial to fulfill the gap. Moreover, Health institutions and health care workers should take this issue into account when counseling the patient.
Infection with COVID-19 is associated with significant morbidity, especially in patients with chronic medical conditions. At least one-fifth of cases require supportive care in intensive care units, which have limited availability in most developing countries. A literature search was conducted on PubMed, Medline, Scopus, Embase, and Google Scholar to find articles published by May 7, 2020 on the role of comorbidities in patients with COVID-19 and the impact of comorbidities on the disease. This review highlighted that patients with comorbidities are more likely to experience severe disease than those with no other conditions; that is, comorbidities correlated with greater disease severity in patients with COVID-19. Proper screening of COVID-19 patients should include careful inquiries into their medical history; this will help healthcare providers identify patients who are more likely to develop serious disease or experience adverse outcomes. Better protection should also be given to patients with COVID-19 and comorbidities upon confirmation of the diagnosis. This literature review showed that the comorbidities most often associated with more severe cases of COVID-19 are hypertension, cardiovascular disease, and diabetes. Individuals with these comorbidities should adopt restrictive measures to prevent exposure to COVID-19, given their higher risk of severe disease.
Background: Studies in developing animals show that a clinically relevant anaesthesia exposure increases neuronal death and alters brain structure. In the hippocampal dentate gyrus, the anaesthetic isoflurane induces selective apoptosis among roughly 10% of 2-week-old hippocampal granule cells in 21-day-old mice. In this work, we queried whether the 90% of granule cells surviving the exposure might be 'injured' and integrate abnormally into the brain. Methods: The long-term impact of isoflurane exposure on granule cell structure was studied using a transgenic mouse model fate-mapping approach to identify and label immature granule cells. Male and female mice were exposed to isoflurane for 6 h when the fate-mapped granule cells were 2 weeks old. The morphology of the fate-mapped granule cells was quantified 2 months later. Results: The gross structure of the dentate gyrus was not affected by isoflurane treatment, with granule cells present in the correct subregions. Individual isoflurane-exposed granule cells were structurally normal, exhibiting no changes in spine density, spine type, dendrite length, or presynaptic axon terminal structure (P>0.05). Granule cell axon terminals were 13% larger in female mice relative to males; however, this difference was evident regardless of treatment (difference of means¼0.955; 95% confidence interval, 0.37e1.5; P¼0.010). Conclusions: A single, prolonged isoflurane exposure did not impair integration of this age-specific cohort of granule cells, regardless of the animal's sex. Nonetheless, although 2-week-old cells were not affected, the results should not be extrapolated to other age cohorts, which may respond differently.
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