BackgroundIncreasing the reach of messages disseminated through Twitter promotes the success of Twitter-based health education campaigns.ObjectiveThis study aimed to identify factors associated with reach in a dental Twitter network (1) initially and (2) sustainably at individual and network levels.MethodsWe used instructors’ and students’ Twitter usernames from a Saudi dental school in 2016-2017 and applied Gephi (a social network analysis tool) and social media analytics to calculate user and network metrics. Content analysis was performed to identify users disseminating oral health information. The study outcomes were reach at baseline and sustainably over 1.5 years. The explanatory variables were indicators of popularity (number of followers, likes, tweets retweeted by others), communication pattern (number of tweets, retweets, replies, tweeting/ retweeting oral health information or not). Multiple logistic regression models were used to investigate associations.ResultsAmong dental users, 31.8% had reach at baseline and 62.9% at the end of the study, reaching a total of 749,923 and dropping to 37,169 users at the end. At an individual level, reach was associated with the number of followers (baseline: odds ratio, OR=1.003, 95% CI=1.001-1.005 and sustainability: OR=1.002, 95% CI=1.0001-1.003), likes (baseline: OR=1.001, 95% CI=1.0001-1.002 and sustainability: OR=1.0031, 95% CI=1.0003-1.002), and replies (baseline: OR=1.02, 95% CI=1.005-1.04 and sustainability: OR=1.02, 95% CI=1.004-1.03). At the network level, users with the least followers, tweets, retweets, and replies had the greatest reach.ConclusionsReach was reduced by time. Factors increasing reach at the user level had different impact at the network level. More than one strategy is needed to maximize reach.

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Egyptian Journal of Botany http://ejbo.journals.ekb.eg/ 2022 S EAWEEDS are an indispensable natural source of bioactive metabolites characterized by multifunctional biomedical and pharmaceutical applications. For instance, seaweedderived polyphenolics are potentially distinguished by their pivotal antioxidant effects in the treatment and/or prevention of several diseases. Moreover, pigments, fatty acids, terpenes, and terpenoids have been characterized by their potent antioxidant, anti-inflammatory, and antiobesity properties, besides their highly effective hepatoprotective activities. Several seaweedextracted polysaccharides, such as alginates, ulvans, and carrageenans, have been reported to exert various medicinal effects such as immunoinflammatory, antioxidant, antitumor, antiviral, and anticoagulant activities. Furthermore, seaweed-derived minerals have been widely utilized as food supplements and cosmeceuticals. This review discusses and emphasizes the biomedical and pharmaceutical applications of seaweeds and the future perspectives for their large-scale applications to develop novel, safe, and high-valued pharmaceutical constituents.

Combined fracture and dislocation of the calcaneocuboid (CC) and naviculocuneiform (NC) joints is a very rare injury; therefore, it is under-reported. We present a case of rare open fracture and dislocation of the CC and NC joints by discussing the diagnosis, evaluation, management and prognosis.

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