Effect of 'Procumbenase' a serine protease from Tridax procumbens aqueous extract on wound healing: A scar free healing of full thickness wounds.

Wound healing involves several cellular and molecular pathways. Tridax procumbens activates genetic pathways with antibacterial, antioxidant, anticancer, and anti-inflammatory properties, aiding wound healing. This study purified Procumbenase, a serine protease from T. procumbens extract, using gel filtration (Sephadex G-75) and ion exchange (CM-Sephadex C-50) chromatography. Characterization involved analyses of protease activity, RP-HPLC, SDS-PAGE, gelatin zymogram, PAS staining, mass spectrometry, and circular dichroism. Optimal pH and temperature were determined. Protease type was identified using inhibitors. Wound-healing potential was evaluated through tensile strength, wound models, hydroxyproline estimation, and NIH 3T3 cell scratch analysis. In incision wound rat models, Procumbenase increased tensile strength on day 14 more than saline and Povidone­iodine. It increased wound contraction by 89 % after 10 days in excision wound models, attaining full contraction by day 15 and closure by day 21. Scarless wound healing was enhanced by 18 days of epithelialization against 22 and 21 days for saline and povidone­iodine. Procumbenase increased hydroxyproline concentration 2.53-fold (59.93 ±â€¯2.89 mg/g) compared to saline (23.67 ±â€¯1.86 mg/g). In NIH 3 T3 cell scratch assay, Procumbenase increased migration by 60.93 % (50 µg) and 60.57 % (150 µg) after 48 h. Thus, Procumbenase is the primary bioactive molecule in T. procumbens, demonstrates scar-free wound healing properties.

Associations between dietary intake, physical activity, and obesity among public school teachers in Jeddah, Saudi Arabia.

Objective: We aimed to assess the dietary intake of certain food groups in a representative sample of public-school teachers living in Jeddah city. We also, examined the association of dietary intake with physical activity and obesity among schoolteachers. Methods: The study was a cross-sectional online survey, conducted among 640 (177 male, 463 female) schoolteachers aged between 20 and 62 years old and working in public primary, intermediate, and high schools in Jeddah. Measurements included gender, weight, height, body mass index (BMI), health problems, and lifestyle behaviours, including physical activity levels, smoking status, and dietary intake. Results: Based on gender, number of non-smoking women (94%) was higher than number of non-smoking men (57.1%) (P < 0.001). However, men were more active than women (P = 0.03). Regarding BMI, there were more overweight men than women, while obese women numbered more than men (P = 0.003). There was no significant difference in dietary intake between men and women except that men consumed more soft drinks than women (P = 0.002). Lower physically active schoolteachers were less likely to consume salad (OR = 0.6, 95% CI 0.4-0.9; P = 0.02), vegetables (OR = 0.6, 95% CI 0.3-0.9; P = 0.01), beans and legumes (OR = 0.4, 95% CI 0.2-0.7; P = 0.005), wholegrain bread (OR = 0.6, 95% CI 0.4-0.9; P = 0.03), dairy products (OR = 0.6, 95% CI 0.4-0.9; P = 0.01), snacks (OR = 0.5, 95% CI 0.2-0.8; P = 0.01), and fish (OR = 0.4, 95% CI 0.2-0.9; P = 0.04) compared to those with high levels of physical activity. Only fruit intake was considered statistically significant (OR = 0.4, 95% CI 0.3-0.7; P = 0.003). The study found a relationship between the BMI of schoolteachers and food intake. Obese schoolteachers had lower consumption of fruits (OR = 0.3, 95% CI 0.2-0.7; P = 0.007) and white meat (OR = 0.5, 95%CI 0.3-0.9; P = 0.03) than schoolteachers in the normal weight group. Conclusion: The high prevalence of physical activity, dietary intake and body weight among Saudi teachers is a major public health concern. The present study identified several lifestyle factors associated with body weight that may represent valid targets for the prevention and management of obesity among Saudi school teachers. Promoting active lifestyles and healthy diets would be primary targets for obesity prevention.

Gender differences in knowledge, attitudes, and practices with respect to type 1 diabetes among Saudi public-school teachers.

BACKGROUND: Children with type 1 diabetes mellitus (T1DM) need carefully monitoring even during school hours to avoid emergencies. Hence, it is crucial for teachers to have appropriate knowledge and positive attitudes toward diabetes to effectively manage the disease and its complications. This study aimed to compare the knowledge, attitudes, and practices with respect to T1DM among Saudi male and female public-school teachers living in Jeddah and to identify the associated factors. METHODS: A cross-sectional study was conducted among primary, intermediate, and secondary public-school teachers working in Jeddah, Saudi Arabia between October 2021 and March 2022. Data were collected through an online survey. The survey included information on the socio-demographics of school teachers, the presence of chronic diseases, teachers' health behaviours, and knowledge, attitude, and practice with respect to T1DM. RESULTS: This study included 378 school teachers. The majority of school teachers from both genders were married, held a bachelor's degree, and aged 45-54 years. Male school teachers were married (P = 0.02), held postgraduate certificates (P < 0.001), smoked cigarette and shisha (P < 0.001), and were physically active (P < 0.001) compared to female school teachers. Regarding teachers' knowledge of T1DM, it was found that female teachers were significantly more knowledgeable of T1DM children's and its symptoms than male teachers (P = 0.03; P = 0.01, respectively). However, male teachers were more willing to accommodate T1DM students in their classes and attend programs to support T1DM students as compared to female teachers (P = 0.004; P = 0.004, respectively). Moreover, the study showed poor practice scores for T1DM. In addition, the knowledge, attitudes, and practice scores toward T1DM were significantly associated with advanced age (P = 0.002), and extended years of teaching experience (P ≤ 0.002). Also, diabetic teachers had the highest knowledge (P = 0.03) and attitude (P = 0.02) scores compared to non-diabetic teachers. Male teachers who were married (P = 0.002), shisha smokers (P = 0.01), and had never practiced activity (P = 0.03) had better attitudes and practices toward T1DM. Similarly, female teachers who held bachelor's certificates had better attitudes toward T1DM (P = 0.02). CONCLUSION: The present study revealed moderate knowledge, favorable attitudes, and poor practices related to T1DM among school teachers in Jeddah. It is crucial for policymakers to provide school teachers with training for necessary diabetes care for diabetic students.

Changes in eating habits and lifestyle during COVID-19 curfew in children in Saudi Arabia.

BACKGROUND/OBJECTIVES: Curfew due to the coronavirus disease 2019 (COVID-19) pandemic could influence health behaviors in people, especially in children, who can easily acquire unhealthy eating habits. This study aimed to investigate the effect of COVID-19 on weight, health behaviors including eating habits, physical activity, and sedentary behavior in children aged 6-15 years in Saudi Arabia. SUBJECTS/METHODS: We conducted a cross-sectional online survey that included 280 children aged 6-15 years in Saudi Arabia during the COVID-19 curfew. The survey included questions on sociodemographic characteristics, anthropometric measures, and health behaviors including eating habits, physical activity, and sedentary behavior. RESULTS: We observed a significant difference in the body mass index before and after the COVID-19 pandemic (P < 0.001). Children significantly tended to skip breakfast, along with a decreased intake of dairy products and fast food (P < 0.001). Moreover, children were less physically active and significantly tended to be involved in leisure screen-based activities, including watching TV and use of computer/games (P < 0.001). CONCLUSIONS: This study provides evidence for the negative influences of the COVID-19 curfew on health behaviors, including eating habits, physical activity, and sedentary behavior in children in Saudi Arabia.