Synthesis, Antiphospholipase A2, Antiprotease, Antibacterial Evaluation and Molecular Docking Analysis of Certain Novel Hydrazones

Some novel hydrazone derivatives 6a–o were synthesized from the key intermediate 4-Chloro-N-(2-hydrazinocarbonyl-phenyl)-benzamide 5 and characterized using IR, 1H-NMR, 13C-NMR, mass spectroscopy and elemental analysis. The inhibitory potential against two secretory phospholipase A2 (sPLA2), three protease enzymes and eleven bacterial strains were evaluated. The results revealed that all compounds showed preferential inhibition towards hGIIA isoform of sPLA2 rather than DrG-IB with compounds 6l and 6e being the most active. The tested compounds exhibited excellent antiprotease activity against proteinase K and protease from Bacillus sp. with compound 6l being the most active against both enzymes. Furthermore, the maximum zones of inhibition against bacterial growth were exhibited by compounds; 6a, 6m, and 6o against P. aeruginosa; 6a, 6b, 6d, 6f, 6l, 6m, 6n, and 6o against Serratia; 6k against S. mutans; and compounds 6a, 6d, 6e, 6m, and 6n against E. feacalis. The docking simulations of hydrazones 6a–o with GIIA sPLA2, proteinase K and hydrazones 6a–e with glutamine-fructose-6-phosphate transaminase were performed to obtain information regarding the mechanism of action

Is there a misuse of computed tomography in the diagnostic workup of headache? A retrospective record-based study in secondary health-care facility in Saudi Arabia

Introduction: Headache disorders are one of the most prevalent global public-health problems that require placing high demand on health-care Services. Since it is one of the most frequent complaints in clinical practice worldwide, it causes a considerable burden in terms of the social cost. The study aimed to give a guide for the decision on the utilization of computed tomography (CT) in the diagnostic workup and identify if patients require neurological imaging (CT) for proper diagnosis or not. Material s and Methods: The study was carried out in the Radiology Department in King Khalid Hospital, Al Kharj, Saudi Arabia from October 15, 2016, to February 15, 2017. A retrospective record-based study conducted using the documented CT reports in the files of patients whom were referred to the radiology department complaining of any type of a headache. Results: The data included 210 patients 51% were males and 49% were females. The patients were distributed into age groups; the mean age was 38.46 standard deviation ± 13.56. Among Saudi population, the etiology of headache was varying; the most prevalent type of headache was tension headache 25.71% of the total headache patients followed by cluster 25.24% and the migraine with the lowest proportionality. The majority of the patients' headache pain was mild 60%. Moreover, the CT reports for most of the patients were normal. Spearman Correlation test was used to see if there is a significance in using the CT for any patient who comes with symptoms including headache, and the results have shown that there is no association and clinical significance in using the CT for patients with headache without suspecting other clinical condition (P = 0.177). Conclusion: Headache disorders must be on the public-health agenda. Tension, migraine, and cluster-type headaches represent the majority of primary headaches. Statistically no significance or need to obtain CT if there are no life-threatening conditions expected or trauma presented