Knowledge of senior secondary school students in Nigeria about Head and Neck Cancer:Implications on prevention strategies

BACKGROUND: The high prevalence of the risk factors of head and neck cancer (HNC) amongst senior secondary (high) school students in Nigeria is an issue of serious public health concern. Therefore, this study aimed to assess the knowledge of HNC among them. METHODS: This cross-sectional study surveyed 2,530 senior secondary school students in Nigeria, assessed their knowledge of HNC, using a self-administered questionnaire. Data collected were analyzed using the SPSS version 25 software. RESULTS: The mean (±SD) age of the respondents was 16.34 (±2.0) years. More than half (1418; 56.6%) of them were males, 530 (20.9%) were schooling in the north-central geopolitical zone of Nigeria, 1,860 (73.5%) were in public schools, 554 (21.9%) were boarding students, and 817 (33.5%) were in Senior Secondary (SS) 3 class. Only 789 (31.2%) respondents were aware of HNC, out of which: 69.2% of them had below-average scores in their overall assessment on HNC; 256 (32.4%) had ever received education on HNC and 81.2% indicated a positive interest in knowing more about HNC. The factors predicting above-average score on knowledge about HNC among the respondents were: being in SS3 class (OR=1.73; 95% CI=1.17 – 2.56), having been educated about HNC (OR=1.69; 95%CI=1.21 – 2.35) and having the interest to know more about HNC (OR=1.88; 95%CI=1.21 – 2.92). Bivariate analysis showed that these factors had statistically significant association (or relationship) with above-average score on knowledge about HNC (pvalues<0.05). CONCLUSION: Majority of the surveyed students were willing to know more about HNC. The use of a properly planned massive school-based HNC education programs may go a long way in educating this population group on HNC

Dataset on biochemical inhibiting activities of selected phytochemicals in Azadirachta indica L as potential NS2B–NS3 proteases inhibitors

The anti-NS2B–NS3 proteases activities of Azadirachta indica L. were investigated via the data obtained from selected bioactive compounds from Azadirachta indica L. The work was investigated using insilico approach and the series of computational software were used to execute the task. The software used were Spartan 14, material studio, Padel, Pymol, Autodock tool, Autodock vina and discovery studio. The obtained descriptors from 2D and 3D of the optimized compounds were screened and they were used to develop QSAR model using material studio software. Also, biological interaction between the selected bioactive compounds from Azadirachta indica L. and NS2B–NS3 proteases (PDB ID: 2fom) were accomplished using docking method and the calculated binding affinity as well as the residues involved in the interaction were reported. More so, the ADMET features for [(5S,6R,7S,8R,9S,10R,11S,12R,13S,17R)-17-(2,5-dihydroxy-2,5-dihydrofuran-3-yl)-11,12-dihydroxy-6‑methoxy-4,4,8,10,13-pentamethyl-1,16-dioxo-6,7,9,11,12,17-hexahydro-5H-cyclopenta[a]phenanthren-7-yl] 3-methylbut-2-enoate (Compound 6) and (10R,13S,14S,17S)-17-[1-(3,4-dihydroxy-5,5-dimethyloxolan-2-yl)ethyl]-4,4,10,13,14-pentamethyl-1,2,5,6,9,11,12,15,16,17-decahydrocyclopenta[a]phenanthren-3-one (compound 12) with lowest binding affinity were investigated and reported

Molecular properties and In silico bioactivity evaluation of (4-fluorophenyl)[5)-3-phen-(4-nitrophenyl yl-4,5-dihydro-1H-pyrazol-1-yl]methanone derivatives: DFT and molecular docking approaches

المخلص: تمت دراسة سلسلة من مشتقات الميثانون (4-فلوروفينيل) [5- (4-نيتروفينيل) -3-فينيل-4،5-ثنائي هيدرو-1اتش-بيرازول-1-يل] باستخدام الطرق الحسابية. تم إجراء تحسين التوازن لهذه المركبات عند مستوى ''ب3ليب/6-31ج∗∗'' من الناحية النظرية، وتم التنبؤ بالمعلمات الهندسية، والاهتزاز الترددي، وخصائص الأشعة المرئية وفوق البنفسجية على أساس حسابات نظرية الكثافة الوظيفية. كشفت فجوة الطاقة، والتبرع بالإلكترون / قبول الطاقة واستجابة كثافة الإلكترون تجاه الإلكتروفيل / النوكليوفيل المحسوبة لـ إم1 و إم2، عن أهمية وضع البديل على السلوك الكيميائي للمركب. أيضا، أظهر التبرع بالإلكترون / قبول الطاقة و فجوة الطاقة أن إم6 أكثر إلكتروفيلا بسبب وجود مجموعتين من ''إن أو 2''، مما يعزز خصائص ''إن إل أو'' الخاصة به. تراوحت قابلية الاستقطاب المفرط للمركبات 5.21-7.26 × 10-30 وحدة كهرباء وكانت أكبر من مادة اليوريا القياسية ''إن إل أو''؛ وبالتالي جعل إم1-إم6 مرشحين محتملين لتطبيقات ''إن إل أو''. كشفت عمليات محاكاة الإرساء أن التقاربات الملزمة للمركبات الستة تراوحت من -8.8 إلى -9.3 كيلو كالوري / مول لـ ''أ ب أو''-نازعة هيدروجين الكبد (عنوان بي دي بي: 5 أ دي إتش) و -8.5 إلى -9.7 كيلو كالوري / مول لـ هيدرولاز البروتين المضاد للالتهابات (عنوان بي دي بي: 1 آر أو 6)؛ وبالتالي يمكن أن تمتلك خصائص جيدة مضادة للأكسدة ومضادة للالتهابات. Abstract: Objectives: Molecular structures, spectroscopic properties, charge distributions, frontier orbital energies, nonlinear optical (NLO) properties and molecular docking simulations were analyzed to examine the bio-usefulness of a series of (4-fluorophenyl)[5-(4-nitrophenyl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl]methanone derivatives. Methods: The compounds were studied through computational methods. Equilibrium optimization of the compounds was performed at the B3LYP/6-31G(d,p) level of theory, and geometric parameters, frequency vibration, UV–vis spectroscopy and reactivity properties were predicted on the basis of density functional theory (DFT) calculations. Results: The energy gap (ΔEg), electron donating/accepting power (ω−/ω+) and electron density response toward electrophiles/nucleophiles calculated for M1 and M2 revealed the importance of substituent positioning on compound chemical behavior. In addition, ω−/ω+ and ΔEn/ΔEe indicated that M6 is more electrophilic because of the presence of two NO2 groups, which enhanced its NLO properties. The hyperpolarizability (β0) of the compounds ranged from 5.21 × 10−30 to 7.26 × 10−30 esu and was greater than that of urea; thus, M1–M6 were considered possible candidates for NLO applications. Docking simulation was also performed on the studied compounds and targets (PDB ID: 5ADH and 1RO6), and the calculated binding affinity and non-bonding interactions are reported. Conclusion: The calculated ω− and ω+ indicated the electrophilic nature of the compounds; M6, a compound with two NO2 groups, showed enhanced effects. Molecular electrostatic potential (MEP) analysis indicated that amide and nitro groups on the compounds were centers of electrophilic attacks. The magnitude of the molecular hyperpolarizability suggested that the entire compound had good NLO properties and therefore could be explored as a candidate NLO material. The docking results indicated that these compounds have excellent antioxidant and anti-inflammatory properties

Prospective observational cohort study on grading the severity of postoperative complications in global surgery research

Background The Clavien–Dindo classification is perhaps the most widely used approach for reporting postoperative complications in clinical trials. This system classifies complication severity by the treatment provided. However, it is unclear whether the Clavien–Dindo system can be used internationally in studies across differing healthcare systems in high- (HICs) and low- and middle-income countries (LMICs). Methods This was a secondary analysis of the International Surgical Outcomes Study (ISOS), a prospective observational cohort study of elective surgery in adults. Data collection occurred over a 7-day period. Severity of complications was graded using Clavien–Dindo and the simpler ISOS grading (mild, moderate or severe, based on guided investigator judgement). Severity grading was compared using the intraclass correlation coefficient (ICC). Data are presented as frequencies and ICC values (with 95 per cent c.i.). The analysis was stratified by income status of the country, comparing HICs with LMICs. Results A total of 44 814 patients were recruited from 474 hospitals in 27 countries (19 HICs and 8 LMICs). Some 7508 patients (16·8 per cent) experienced at least one postoperative complication, equivalent to 11 664 complications in total. Using the ISOS classification, 5504 of 11 664 complications (47·2 per cent) were graded as mild, 4244 (36·4 per cent) as moderate and 1916 (16·4 per cent) as severe. Using Clavien–Dindo, 6781 of 11 664 complications (58·1 per cent) were graded as I or II, 1740 (14·9 per cent) as III, 2408 (20·6 per cent) as IV and 735 (6·3 per cent) as V. Agreement between classification systems was poor overall (ICC 0·41, 95 per cent c.i. 0·20 to 0·55), and in LMICs (ICC 0·23, 0·05 to 0·38) and HICs (ICC 0·46, 0·25 to 0·59). Conclusion Caution is recommended when using a treatment approach to grade complications in global surgery studies, as this may introduce bias unintentionally

Critical care admission following elective surgery was not associated with survival benefit: prospective analysis of data from 27 countries

This was an investigator initiated study funded by Nestle Health Sciences through an unrestricted research grant, and by a National Institute for Health Research (UK) Professorship held by RP. The study was sponsored by Queen Mary University of London

The surgical safety checklist and patient outcomes after surgery: a prospective observational cohort study, systematic review and meta-analysis

© 2017 British Journal of Anaesthesia Background: The surgical safety checklist is widely used to improve the quality of perioperative care. However, clinicians continue to debate the clinical effectiveness of this tool. Methods: Prospective analysis of data from the International Surgical Outcomes Study (ISOS), an international observational study of elective in-patient surgery, accompanied by a systematic review and meta-analysis of published literature. The exposure was surgical safety checklist use. The primary outcome was in-hospital mortality and the secondary outcome was postoperative complications. In the ISOS cohort, a multivariable multi-level generalized linear model was used to test associations. To further contextualise these findings, we included the results from the ISOS cohort in a meta-analysis. Results are reported as odds ratios (OR) with 95% confidence intervals. Results: We included 44 814 patients from 497 hospitals in 27 countries in the ISOS analysis. There were 40 245 (89.8%) patients exposed to the checklist, whilst 7508 (16.8%) sustained ≥1 postoperative complications and 207 (0.5%) died before hospital discharge. Checklist exposure was associated with reduced mortality [odds ratio (OR) 0.49 (0.32–0.77); P\u3c0.01], but no difference in complication rates [OR 1.02 (0.88–1.19); P=0.75]. In a systematic review, we screened 3732 records and identified 11 eligible studies of 453 292 patients including the ISOS cohort. Checklist exposure was associated with both reduced postoperative mortality [OR 0.75 (0.62–0.92); P\u3c0.01; I2=87%] and reduced complication rates [OR 0.73 (0.61–0.88); P\u3c0.01; I2=89%). Conclusions: Patients exposed to a surgical safety checklist experience better postoperative outcomes, but this could simply reflect wider quality of care in hospitals where checklist use is routine