1.Comparative investigation of the free radical scavenging potential and anticancer property of Diospyros blancoi (Ebenaceae)
Khan Ali Muhammad ; Rahman Mahbubur Md ; Sardar Nazmul Md ; Islam Badrul Md ; Rashid Mamunur ; Sadik Golam ; Alam Khurshid AHM
Asian Pacific Journal of Tropical Biomedicine 2016;6(5):410-417
Objective: To investigate the comparative effects of Diospyros blancoi (Ebenaceae) leaves (DBL), root bark (DBRB) and stem bark (DBSB) on free radicals and cancer. Methods: The polyphenol contents, antioxidant and free radical scavenging properties were determined using standard spectrophotometric methods. Cytotoxicity and anticancer activ-ities were performed on brine shrimp nauplii and Ehrlich ascite carcinoma cells, respectively. Results: Among the extracts, DBSB showed the highest total antioxidant capacity and reducing capacity on ferrous ion. Based on 1,1-diphenyl-2-picrylhydrazyl and hydroxyl radical scavenging activities, DBSB showed (95.760 ± 0.343)%and (67.460 ± 2.641)%scavenging with IC50 of (3.10 ± 0.17) and (50.00 ± 3.11) mg/mL, respectively. The IC50 values of standard butylated hydroxytoluene and catechin (CA) for 1,1-diphenyl-2-picrylhydrazyl and hydroxyl radicals were (8.50 ± 0.25) and (75.00 ± 0.14) mg/mL, respectively suggesting that DBSB had a significant (P < 0.05) radical scavenging ac-tivity than standards. In lipid peroxidation inhibition assay, the inhibitory activity of the extracts and the standard was in the following order: DBSB > DBRB > CA > DBL. Also, the phenolic [(139.91 ± 3.924) mg gallic acid equivalent/g] and flavonoid contents [(412.00 ± 16.70) mg catechin equivalent/g)] of DBSB were higher than that of other extracts. In addition, the DBSB showed the moderate cytotoxic and anticancer properties. Conclusions: Our results indicate that Diospyros blancoi stem bark had the significant highest antioxidant and free radical scavenging properties as well as moderate anticancer activity. Hence, we assume that the anticancer activity of this plant can be, at least in part, attributed to its content in phenolic compounds as well as its significant free radical scavenging properties.
2.Comparison of the knowledge, attitudes, and perception of barriers regarding adverse drug reaction reporting between pharmacy and medical students in Pakistan.
Muhammad UMAIR KHAN ; Akram AHMAD ; Areeba EJAZ ; Syed Ata RIZVI ; Ayesha SARDAR ; Kazim HUSSAIN ; Tayyaba ZAFFAR ; Shazia Q JAMSHED
Journal of Educational Evaluation for Health Professions 2015;12(1):28-
PURPOSE: The goal of this study was to compare the knowledge and attitudes of pharmacy and medical students regarding adverse drug reactions (ADRs), as well as their perceptions of barriers to ADR reporting, in a Higher Education Commission-recognised Pakistani university. METHODS: A cross-sectional study was conducted among final-year pharmacy (n=91) and medical (n=108) students in Pakistan from June 1 to July 31, 2014. A self-administered questionnaire was used to collect the data. The responses of pharmacy students were compared to those of medical students. RESULTS: Pharmacy students had a significantly better knowledge of ADRs than medical students (mean+/-SD, 5.61+/-1.78 vs. 3.23+/-1.60; P<0.001). Gender showed a significant relationship to knowledge about ADRs, and male participants were apparently more knowledgeable than their female counterparts (P<0.001). The attitudes of pharmacy students regarding their capability to handle and report ADRs were significantly more positive than those of medical students (P<0.05). In comparison to pharmacy students, a lack of knowledge of where and how to report ADRs was the main barrier that medical students perceived to ADR reporting (P=0.001). CONCLUSION: Final-year pharmacy students exhibited more knowledge about ADRs and showed more positive attitudes regarding their capacity to handle and report ADRs than final-year medical students.
Cross-Sectional Studies
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Drug-Related Side Effects and Adverse Reactions*
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Education
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Female
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Humans
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Male
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Pakistan*
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Pharmacovigilance
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Pharmacy*
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Students, Medical*
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Students, Pharmacy
3.Organic and Inorganic Mercury in Biological Samples of Flouresecent Lamp Industries Workers and Health Risks.
Nayab GUL ; Sardar KHAN ; Abbas KHAN ; Javed NAWAB ; Adnan SARWAR ; Nida GUL
Biomedical and Environmental Sciences 2020;33(2):89-102
Objective:
The present study aims to investigate the concentrations of Hg and its aspects methyl mercury (Me-Hg) and inorganic mercury (I-Hg) in the biological samples (BSs) of fluorescent lamp industries workers (FLIWs).
Methodology:
Different BSs including red blood cells (RBCs), plasma, urine, hair and nails were collected from the workers exposed to Hg and unexposed persons were selected as control group to measure both the T-Hg concentration as well as its species in different biological samples through quantitative analysis. Health data was collected through questionnaire survey.
Results:
The mean concentrations of T-Hg (31.9 µg/L), Me-Hg (27.7 µg/L), and I-Hg (5.36 µg/L) in RBCs were found significantly ( < 0.001) higher among the workers ( = 40) as compared to the control group ( = 40). Similarly the mean Hg concentrations in plasma, urine, hair and nails were also significantly higher among the workers than the control group. The statistical relation between Hg concentration and demographic characteristics observed that workers experience and fish consumption has increased the Hg concentration while age, weight and smoking found no significant effect on Hg concentration in the BSs.
Conclusion
The study observed that the workers were highly exposed to high concentration of Hg and they are at a high health risk.
4. Comparative investigation of the free radical scavenging potential and anticancer property of Diospyros blancoi (Ebenaceae)
Muhammad Ali KHAN ; Md. Mahbubur RAHMAN ; Md. Nazmul SARDAR ; Md. Saiful Islam ARMAN ; Mamunur RASHID ; Golam SADIK ; A.H.M. Khurshid ALAM ; Md. Badrul ISLAM ; Md. Jahangir Alam KHANDAKAR ; A.H.M. Khurshid ALAM
Asian Pacific Journal of Tropical Biomedicine 2016;6(5):410-417
Objective: To investigate the comparative effects of Diospyros blancoi (Ebenaceae) leaves (DBL), root bark (DBRB) and stem bark (DBSB) on free radicals and cancer. Methods: The polyphenol contents, antioxidant and free radical scavenging properties were determined using standard spectrophotometric methods. Cytotoxicity and anticancer activities were performed on brine shrimp nauplii and Ehrlich ascite carcinoma cells, respectively. Results: Among the extracts, DBSB showed the highest total antioxidant capacity and reducing capacity on ferrous ion. Based on 1,1-diphenyl-2-picrylhydrazyl and hydroxyl radical scavenging activities, DBSB showed (95.760 ± 0.343)% and (67.460 ± 2.641)% scavenging with IC
5.A review of current trends of antibacterial Schiff base complexes: Lower and higher transition metal complexes
Aziza Sarwar ; Hadariah Bahron ; Bibi Sherino ; Anila Ali ; Sajjad Bhangwar ; Yatimah Alias
Malaysian Journal of Microbiology 2023;19(no.3):333-347
The development of metal complexes has inspired researchers to progress in this domain due to their extensive applications in the biological field. Regarding the application, binuclear metal complexes are less explored than their mononuclear counterparts. Recent development in transition metal Schiff base complexes was outlined and presented in detail with their respective vast applications, especially antibacterial. The relationship of their structure, functions, properties, and key elements that affected antibacterial activities was demonstrated. This review was aimed to present the latest advancement of numerous lower and higher transition metal complexes, especially mononuclear ones. Moreover, their various properties are highlighted for future work related to binuclear Schiff base metal complexes and to persuade future research in this exciting field.
6.A Longitudinal Survey for Genome-based Identification of SARS-CoV-2 in Sewage Water in Selected Lockdown Areas of Lahore City, Pakistan: A Potential Approach for Future Smart Lockdown Strategy.
Yaqub TAHIR ; Nawaz MUHAMMAD ; Z Shabbir MUHAMMAD ; A Ali MUHAMMAD ; Altaf IMRAN ; Raza SOHAIL ; A B Shabbir MUHAMMAD ; A Ashraf MUHAMMAD ; Z Aziz SYED ; Q Cheema SOHAIL ; B Shah MUHAMMAD ; Rafique SAIRA ; Hassan SOHAIL ; Sardar NAGEEN ; Mehmood ADNAN ; W Aziz MUHAMMAD ; Fazal SEHAR ; Hussain NADIR ; T Khan MUHAMMAD ; M Atique MUHAMMAD ; Asif ALI ; Anwar MUHAMMAD ; A Awan NABEEL ; U Younis MUHAMMAD ; A Bhattee MUHAMMAD ; Tahir ZARFISHAN ; Mukhtar NADIA ; Sarwar HUDA ; S Rana MAAZ ; Farooq OMAIR
Biomedical and Environmental Sciences 2021;34(9):729-733