Search

Context: Date palm waste is an agricultural waste that accumulates in massive amounts causing serious pollution and environmental problems., Objectives: Date palm trees, Phoenix dactylifera Linn CV 'Zaghloul' (Arecaceae) grown in Egypt, leave behind waste products that were investigated to produce compounds with anti- Helicobacter pylori and anti-inflammatory activities., Materials and Methods: Chromatographic workup of P. dactylifera aqueous methanol extract derived from fibrous mesh and fruit bunch (without fruit) afforded a new sesquiterpene lactone derivative, phodactolide A ( 1 ), along with ten known compounds ( 2-11 ), primarily identified as polyphenols. Chemical structures were unambiguously elucidated based on mass and 1D/2D NMR spectroscopy. All isolated compounds were assessed for their activities against H. pylori using broth micro-well dilution method and clarithromycin as a positive control. The anti-inflammatory response of isolated compounds was evaluated by inhibiting cyclooxygenase-2 enzyme using TMPD Assay followed by an in silico study to validate their mechanism of action using celecoxib as a standard drug., Results: Compounds 4 , 6 and 8-10 exhibited potent anti- H. pylori activity with MIC values ranging from 0.48 to 1.95 µg/mL that were comparable to or more potent than clarithromycin. For COX-2 inhibitory assay, 4 , 7 and 8 revealed promising activities with IC 50 values of 1.04, 0.65 and 0.45 μg/mL, respectively. These results were verified by molecular docking studies, where 4 , 7 and 8 showed the best interactions with key amino acid residues of COX-2 active site., Conclusion: The present study characterizes a new sesquiterpene lactone and recommends 4 and 8 for future in vivo studies as plausible anti-ulcer remedies.

In this study, new benzothiazole-pyrimidine hybrids ( 5a - c , 6 , 7a - f , and 8 - 15 ) were designed and synthesised. Two different functionalities on the pyrimidine moiety of lead compound 4 were subjected to a variety of chemical changes with the goal of creating various functionalities and cyclisation to further elucidate the target structures. The potency of the new molecules was tested against different tuberculosis (TB) strains. The results indicated that compounds 5c , 5b , 12 , and 15 (MIC = 0.24-0.98 µg/mL) are highly active against the first-line drug-sensitive strain of Mycobacterium tuberculosis (ATCC 25177). Thereafter, the anti-tubercular activity was evaluated against the two drug-resistant TB strains; ATCC 35822 and RCMB 2674, where, many compounds exhibited good activity with MIC = 0.98-62.5 3 µg/mL and 3.9-62.5 µg/mL, respectively. Compounds 5c and 15 having the highest anti-tubercular efficiency towards sensitive strain, displayed the best activity for the resistant strains by showing the MIC = 0.98 and 1.95 µg/mL for MDR TB, and showing the MIC = 3.9 and 7.81 µg/mL for XDR TB, consecutively. Finally, molecular docking studies were performed for the two most active compounds 5c and 15 to explore their enzymatic inhibitory activities.

Joining the global fight against Tuberculosis, the world's most deadly infectious disease, herein we present the design and synthesis of novel isatin-nicotinohydrazide hybrids ( 5a-m and 9a-c ) as promising anti-tubercular and antibacterial agents. The anti-tubercular activity of the target hybrids was evaluated against drug-susceptible M. tuberculosis strain (ATCC 27294) where hybrids 5d , 5g and 5h were found to be as potent as INH with MIC = 0.24 µg/mL, also the activity was evaluated against Isoniazid/Streptomycin resistant M. tuberculosis (ATCC 35823) where compounds 5g and 5h showed excellent activity (MIC = 3.9 µg/mL). Moreover, the target hybrids were examined against six bronchitis causing-bacteria. Most derivatives exhibited excellent antibacterial activity. K. pneumonia emerged as the most sensitive strain with MIC range: 0.49-7.81 µg/mL. Furthermore, a molecular docking study has proposed DprE1 as a probable enzymatic target for herein reported isatin-nicotinohydrazide hybrids, and explored the binding interactions within the vicinity of DprE1 active site.

As one of the most lethal malignancies, lung cancer is considered to account for approximately one-fifth of all malignant tumours-related deaths worldwide. This study reports the synthesis and in vitro biological assessment of two sets of 3-methylbenzofurans ( 4a-d , 6a-c , 8a-c and 11 ) and 3-(morpholinomethyl)benzofurans ( 15a-c , 16a-b , 17a-b and 18 ) as potential anticancer agents towards non-small cell lung carcinoma A549 and NCI-H23 cell lines, with VEGFR-2 inhibitory activity. The target benzofuran-based derivatives efficiently inhibited the growth of both A549 and NCI-H23 cell lines with IC 50 spanning in ranges 1.48-47.02 and 0.49-68.9 µM, respectively. The three most active benzofurans ( 4b , 15a and 16a ) were further investigated for their effects on the cell cycle progression and apoptosis in A549 (for 4b ) and NCI-H23 (for 15a and 16a ) cell lines. Furthermore, benzofurans 4b , 15a and 16a displayed good VEGFR-2 inhibitory activity with IC 50 equal 77.97, 132.5 and 45.4 nM, respectively.

Objective : Inappropriate use of antibiotics is one of the main causes of antibiotic resistance around the globe. The present study was aimed to assess the knowledge, attitude, and practices toward antibiotics and antibiotic resistance among consumers. Methods : A cross-sectional study was conducted from April 2019 to September 2019. The participants visiting community pharmacies to buy the antibiotics were approached by data collectors. The descriptive analysis, Kruskal Wallis, and Mann-Whitney statistical tests were used for data analysis through SPSS. Results : 399 participants at three pharmacies with male (n = 352, 88.2%), age (years) group between 34 to 41(n = 138, 34.6%), uneducated (n = 128, 32.1%), and higher education (n = 76, 19.0%) level of the participants were noted. Poor to moderate knowledge were observed; participants were unaware of the risk and misuse of antibiotics at all three pharmacies. By some means, a positive attitude noted, but the storage of antibiotics at home (Median = 2, IQR = 2) was preferred to use when needed. Most of the respondents didn't follow the actual dosage regimen as prescribed (n = 266, 66.7%, p < 0.05). Conclusion : A lack of knowledge and malpractices toward antibiotics use among consumers were observed. Education and awareness of the public about antibiotic resistance is the need of the hour.

Background: Diabetes mellitus (DM) has a very high prevalence and poses a huge financial encumbrance on patients. This study aimed to evaluate the cost of diabetes care among patients with type 2 diabetes in private clinics of southern Punjab, Pakistan., Research Design and Methods: This was a descriptive, cross-sectional, prevalence-based, cost-of-illness (COI) study conducted in six private clinics of southern Punjab from July to September 2016, using a pretested questionnaire. Study participants were recruited using a random selection method. Continuous variables, including direct and indirect costs, were summarized using descriptive statistics. Inferential statistics were also used to analyze the correlation between the variables and cost., Results: The mean annual direct cost per patient with diabetes was estimated to be 332 USD. Medications accounted for the largest share (60.4%) of this cost. Age, locality, high socioeconomic status, and prolonged disease duration were significantly associated with the direct costs of illness (p < 0.05). Moreover, 19% of total earnings among very low-income patients were spent on diabetes care., Conclusions: A substantial proportion of patients' income is spent on diabetes care in Punjab. Our findings support the substantial individual and societal burden caused by diabetes.

Background: Non-prescription use of antibiotics in children is an important public health problem. We aimed to investigate primary caregivers' knowledge, attitudes, and practices of antibiotics use among children in urban China., Methods: Knowledge, attitudes, and practices regarding antibiotics use in children were assessed through a cross-sectional questionnaire survey of 4200 caregivers of children under-7 years from three cities in China. Data were analyzed using descriptive statistics and multivariate analysis., Results: Caregivers' knowledge gaps and undesirables attitudes regarding appropriate use of antibiotics were identified. 48.2% of respondents reported non-prescription use of antibiotics for children in the past 6 months. The most common sources of antibiotics used without a prescription are community pharmacies and leftovers. Storing antibiotics at home and caregivers' supportive attitude were positively and significantly associated with non-prescription use of antibiotics in children, while significant inverse associations were found for caregiver's knowledge of prescription-only regulation on antibiotics sales at community pharmacies., Conclusions: There was a high proportion of primary caregivers self-medicate antibiotics for children in urban China, despite their insufficient knowledge about antibiotic use. Public health initiatives are needed such as public education campaigns and stricter government regulation of antibiotic use and availability in community pharmacies.

In an attempt to identify biochemical analytes that could enhance the discrimination between the patients with severe liver fibrosis (F3-F4) and mild fibrosis (F1-F2) based on absolute values of biochemical markers, we measured 12 analytes, including procollagen III aminoterminal propeptide (PIIINP), laminin, proline, hydroxylproline, glycine, AST, ALT, alkaline phosphatase, albumin, total bilirubin, total protein, and prothrombin time in 252 individuals with chronic hepatitis C infection (CHC). PIIINP and laminin were determined by radio-immunoassay; the degraded amino acids were determined using high performance liquid chromatography. Statistical analyses were performed by logistic regression, and receiver operating characteristic (ROC) curves. The best linear combination of blood markers was selected by multivariate discriminant analysis (MDA) for construction of the fibrosis discriminant score (FDS). FDS, an index of five markers (PIIINP, laminin, hydroxyproline, prothrombin activity, and AST/ALT) correctly classified 82% of the patients with severe liver fibrosis at a discriminant cut-off score=-0.5 (i.e., less than -0.5 indicated severe liver fibrosis and greater than -0.5 indicated mild liver fibrosis with sensitivity (76%) and specificity (89%). This result was reproduced in a validation study with no significant difference. In conclusion, FDS is useful for identifying severe liver fibrosis in patients with CHC.

Case-study research was carried out with a view to find the attributes of occupational injury among workers in the chemical industry and to enhance safety issues. Injury data were collected and processed in terms of different variables, such as age, gender, skills, type of hazard, etc. Pareto analysis was then applied to find a pattern of occupational injury among the workers. The study revealed that 79.52% of the injured workers were in the 40-59 age group; 57.14% of accidents occurred during the 1st shift; 73.26% of accidents caused injury to hands, feet, chest to thigh, arms and eyes; and 70.93% of injuries were caused by pumps, carrying and lifting, vehicles, pipelines, valves, and grinding. Surprisingly, no one was injured in the group of temporary workers. The paper also provides specific suggestions followed by some action plans.

As a disease of domestic ruminants, fascioliasis is of considerable economic importance. Although serological tests are available for the diagnosis of the disease, they are of generally low specificity because of cross-reactivity with antigens from other parasites. There is a need to identify other Fasciola antigens on which more specific tests could be based. In the present study, a specific rabbit anti-serum and western-blot analyses were used to demonstrate the presence of a highly reactive antigen of 26-28 kDa not only in an extract of adult F. gigantica but also in the excretory/secretory products of the worms and in the bile secretions and sera of cattle that were naturally infected with this parasite. The 26- to 28-kDa antigen was isolated from preparative polyacrylamide gels, by electro-elution. The purified antigen showed a single peak at 5.8 min when analysed by capillary zone electrophoresis. It was characterized as protein containing 47.5% hydrophilic and 29.3% hydrophobic amino acids. Immunostaining demonstrated that the target epitope was located in the gut and tegument of adult F. gigantica and within the bile ducts, the portal tracts of the livers and the mucosa and muscularis of the gallbladders of infected cattle. A simple and rapid dot-ELISA technique based on the specific rabbit anti-serum was 100% specific when tested on the sera from nine cattle infected with F. gigantea and 27 uninfected cattle. In conclusion, the 26- to 28-kDa Fasciola antigen may be a promising candidate for the immunodiagnosis of fascioliasis.