Vaccination to prevent coronavirus disease 2019 (COVID-19) emerged as a promising measure to overcome the negative consequences of the pandemic. Since university students could be considered a knowledgeable group, this study aimed to evaluate COVID-19 vaccine acceptance among this group in Jordan. Additionally, we aimed to examine the association between vaccine conspiracy beliefs and vaccine hesitancy. We used an online survey conducted in January 2021 with a chain-referral sampling approach. Conspiracy beliefs were evaluated using the validated Vaccine Conspiracy Belief Scale (VCBS), with higher scores implying embrace of conspiracies. A total of 1106 respondents completed the survey with female predominance (n = 802, 72.5%). The intention to get COVID-19 vaccines was low: 34.9% (yes) compared to 39.6% (no) and 25.5% (maybe). Higher rates of COVID-19 vaccine acceptance were seen among males (42.1%) and students at Health Schools (43.5%). A Low rate of influenza vaccine acceptance was seen as well (28.8%), in addition to 18.6% of respondents being anti-vaccination altogether. A significantly higher VCBS score was correlated with reluctance to get the vaccine (p <0.001). Dependence on social media platforms was significantly associated with lower intention to get COVID-19 vaccines (19.8%) compared to dependence on medical doctors, scientists, and scientific journals (47.2%, p <0.001). The results of this study showed the high prevalence of COVID-19 vaccine hesitancy and its association with conspiracy beliefs among university students in Jordan. The implementation of targeted actions to increase the awareness of such a group is highly recommended. This includes educational programs to dismantle vaccine conspiracy beliefs and awareness campaigns to build recognition of the safety and efficacy of COVID-19 vaccines.
Influenza vaccination is the most effective method in preventing influenza and its complications. This study's objectives were to investigate the vaccination coverage and frequency and to assess knowledge, attitudes, and practices toward influenza vaccination in Jordan during the year 2012 and the 5 years preceding it. Additionally, it aimed at identifying the barriers and motivations to receive the vaccine and the factors contributing to its uptake. In May 2012, a self-administered cross-sectional survey was distributed to 3,200 adults conveniently selected across Jordan to explore influenza vaccination status, knowledge, attitudes, and practices toward the influenza vaccine. The survey response rate was 98.3%. The overall coverage rate of seasonal influenza vaccination ranged from 9.9% to 27.5%. Results of the univariate analysis revealed that males, participants older than 45 years, business owners, and university students or graduates were more likely to take the vaccine. Healthcare workers (HCW) showed higher rates than non-HCW and those with concomitant chronic diseases were more committed to receive the vaccine. Knowledge about the influenza vaccine is considered high in the Jordanian population. Fear from side effects was the major barrier, while the fear of the virus spread and outbreak was the major reason to receive the vaccine. The coverage rates were low in Jordan compared to other countries. The need for influenza vaccine campaigns and on-going education in Jordan health schools is crucial to increase the rate and remove misconceptions and negative attitudes toward vaccination.
Cervical cancer is a leading cause of morbidity and mortality in women worldwide. The availability of prophylactic vaccines for high-risk types of human papillomavirus (HPV) infection represents an important advancement in the prevention of cervical cancer. In Jordan, the availability of the HPV vaccination is restricted to individuals who are willing to pay. The aim of the current study was to evaluate the willingness and attitude of female university students in health schools/faculties in Jordan to get HPV vaccination and their knowledge about the virus. A self-administered online questionnaire was distributed in October 2021, which comprised 27 items to evaluate HPV knowledge, history of HPV vaccination, intentions to get the HPV vaccine, and the reason(s) behind vaccine refusal for those who rejected vaccination. The study sample comprised 836 participants: medical students (39.7%), pharmacy students (26.0%), dental students (21.2%), and nursing students (13.2%). Only 524 participants had heard of HPV prior to the study (62.7%), of which 48.7% knew about the availability of HPV vaccines. The lowest level of HPV knowledge was observed among nursing students. Only 19/524 students reported a history of HPV vaccination (3.6%). The overall willingness to receive HPV vaccination if provided freely was 75.0%, while only 16.0% were willing to pay for the vaccine. The most common reason for HPV vaccine rejection was the perceived low risk to get HPV infection. Significantly higher intentions to get HPV vaccination were found among older participants and medical students. The embrace of vaccine conspiracy beliefs was associated with a significantly less willingness to get the HPV vaccination (p < 0.001). Dependence on the internet/social media as the source of HPV knowledge was associated with a significantly lower intention to get HPV vaccination (p = 0.002). The coverage of the HPV vaccination among female university students in health schools in Jordan appeared extremely low; however, three-fourths of the students who had heard of HPV were willing to receive the HPV vaccination if provided freely. Complacency appeared as a major factor for HPV vaccine rejection. Increasing the levels of knowledge and awareness of HPV infection and its association with cervical cancer through reliable sources is recommended. This can be helpful for the individual benefit of the students besides the potentially positive role they can play in community education. Countering vaccine conspiracy beliefs with proper education and awareness programs can be helpful to appraise the role of HPV vaccines in cancer prevention.
Background:The search for novel xanthine oxidase (XO) inhibitors with a higher therapeutic activity and fewer side effects are desired not only to treat gout but also to combat various other diseases associated with the XO activity. At present, the potential of developing successful natural products for the management of XO-related diseases is still largely unexplored. In the present study, we have screened the methanolic extracts of various Jordanian medicinal plants for their XO inhibitory activities using an optimized protocol.Materials and Methods:The methanolic extracts of 23 medicinal plants, belonging to 12 families, were tested in vitro, at 200 μg/ml concentrations, for their XO inhibitory potential. The dose-dependent inhibition profiles of the most active plants were further evaluated by estimating the IC50 values of their corresponding extracts.Results:Six plants were found most active (% inhibition more than 39%). These plants are Salvia spinosa L. (IC50 = 53.7 μg/ml), Anthemis palestina Boiss. (168.0 μg/ml), Chrysanthemum coronarium L. (199.5 μg/ml), Achillea biebersteinii Afansiev (360.0 μg/ml), Rosmarinus officinalis L. (650.0 μg/ml), and Ginkgo biloba L. (595.8 μg/ml). Moreover, four more plants, namely Lavandula angustifolia Mill. (28.7% inhibition), Helianthemum ledifolium (L.) Mill. (28.4%), Majorana syriaca (L.) Kostel. (25.1%), and Mentha spicata L. (22.5%) showed a XO inhibitory activity in the range of 22–30%.Conclusion:The study showed that many of the tested plant species are potential sources of natural XO inhibitors that can be developed, upon further investigation, into successful herbal drugs for treatment of gout and other XO-related disorders.
Psychological stress stimulates physiological responses releasing catecholamines and corticoids, which act via corresponding receptors on immune cells, producing a shift in the cytokine balance. These responses are variable depending on the nature of stressors. The effect of the academic stress on the production of the Th1-cytokines (TNF-α, IFN-γ, IL-1β, IL-2, IL-6 and IL-8) and Th2-cytokines (IL-1ra, IL-4, IL-5 and IL-10) on 35 medical/health sciences students after completing their questionnaires was investigated. Blood samples were taken at three stages; baseline stage at the beginning, midterm and final academic examination stages. Plasma cortisol and cytokines were measured during the three stages. The last two stages were compared with the baseline non-stress period. Results of the stress induced during the final examination stage were the highest with a significant increase in cortisol release, IL-4, IL-5 and IL-1ra release with a shift in Th1:Th2 cytokines balance towards Th2. Whereby, the midterm stage did not show significant reduction in Th1-cytokines except for TNF-α, with an increase in IFN-γ level that was reduced in the third stage. Th2 cytokine, IL-1ra, had positive correlations with Th1 cytokines; IL-2 and IFN-γ in the second stage and IL-6 cytokine in the third stage. Cortisol was positively correlated with IL-8 in the last stage and heart rates had negative correlation with IL-10 in the first and last stages. Findings of this study indicate that exam stress down-regulates Th1 with a selective up-regulation of Th2-cytokines. In conclusion, Cortisol might have a role in suppressing the release of Th1- mediated cellular immune response which could increase the vulnerability among the students to infectious diseases.
Stress in health sciences students has been studied extensively. Nevertheless, only few studies have been conducted on pharmacy students and nothing was done to compare stress effects on the immune responses of Pharmacy and Doctor of Pharmacy (PharmD) students. The aim of this pilot study was (1) to measure the self-reported perceived stresses, immune-related diseases and health outcomes of pharmacy and PharmD students, (2) to investigate the relationship between perceived stresses, health outcomes and immune-related diseases and (3) to compare stress induced changes in the health and immune system of pharmacy and PharmD students. The study represents a cross sectional survey using an interviewer administered questionnaire about stress and students' health states during the fall semester of 2009/2010. At commence of this study, 222 of pharmacy and PharmD participant students (113 and 109 respectively) from the third and uppermost levels of study were picked up randomly. They were found to perceive stress related to program intensity, lack of exercise and social activities, bad nutritional routines and accommodation. Effects of increased study loads on students' health and immune-related diseases were more pronounced on PharmD students, while showing significant changes on Pharmacy students. In general, more than 50% of students of each program got ill several times, mainly during the midterm period, had cold/flu, were under medical care and had problems in skin and/or hair. Also, PharmD students reported relatively higher levels of perceived stress and lower emotional and satisfaction quality of life compared to Pharmacy students. Results may help to increase the awareness of students to get prepared to what they might face, and may enable them to reduce the program's negative effects.
Acne vulgaris is a chronic inflammatory disorder in which Propionibacterium acnes plays a critical role in its development when it overgrows in the pilosebaceous unit. The present study was conducted to evaluate the antimicrobial and anti-inflammatory activity of fourteen Mediterranean plant extracts separately and in combinations for the treatment of acne. The methanolic plant extracts were tested against P. acnes by determining the minimum inhibitory concentration (MIC). The extracts that showed high antimicrobial activity were studied for their anti-inflammatory effect. They were evaluated for their ability to suppress the pro-inflammatory cytokines IL-1β, IL-8, IL-12 and the TNF-α release from PBMCs and mTNF-α from mouse splenocytes using ELISA assay. Rosmarinus officinalis was found to exhibit the highest antimicrobial activity amongst all of the tested extracts (MIC 0.5 mg/ml) followed by Origanum syriacum (MIC 1 mg/ml) and Punica granatum (MIC 1.25 mg/ml). 100 and 50 μg/ml of Chrysanthemum coronarium, Origanum syriacum or Inula viscosa extracts showed the most effective inhibition for the cytokine release. Six extracts had shown both antimicrobial and anti-inflammatory activities with apparent dose-dependent responses making them potential agents for the treatment of acne. Two mixtures prepared from the plants with the highest antimicrobial activity had shown synergistic antimicrobial and anti-inflammatory effect.
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