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Wali S, Zahra M, Okla MK, Wahidah HA, Tauseef I, Haleem KS, Farid A, Maryam A, AbdElgawad H, Adetunji CO, Akhtar N, Akbar S, Rehman W, Yasir H, Shakira G. Brassica oleracea L. (Acephala Group) based zinc oxide nanoparticles and their efficacy as antibacterial agent. BRAZ J BIOL 2024; 84:e259351. [DOI: 10.1590/1519-6984.259351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 05/26/2022] [Indexed: 11/22/2022] Open
Abstract
Abstract Zinc oxide nanoparticles were synthesized from the leaf extract of Brassica oleracea L. Acephala group (collard green) followed by their characterization using Scanning Electron Microscope (SEM), and Energy Dispersive X-ray (EDX). The antibacterial properties of zinc nanoparticles were tested against Gram-negative bacteria, Pseudomonas aeruginosa (ATCC ® 9027™), Escherichia coli (ATCC ® 8739™), Klebsiella pneumoniae (ATCC® BAA-1705™) and Gram-positive bacteria, Staphylococcus aureus (ATCC ® 6538™) and Listeria monocytogenes (ATCC ® 13932™), at four different concentrations (50.00 µg/ml, 100.00 µg/ml, 500.00 µg/ml and 1 mg/ml) of zinc oxide nanoparticles suspension. Results revealed that the synthesized nanoparticles exhibit strong antibacterial effects against Pseudomonas aeruginosa, Listeria monocytogenes, Klebsiella pneumonia, Staphylococcus aureus and Escherichia coli at 500.00 µg/ml-1 mg/ml concentrations. An increase in efficacy of nanoparticles with the decrease of their size was also evident. This is a first ever report on Brassica oleracea, L. based nanoparticles which demonstrates that 500.00 µg-1 mg/ml conc. of zinc oxide nanoparticles have antibacterial activity against both Gram -ve and Gram +ve bacteria and have the potential to be considered as an antibacterial agent in future.
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Affiliation(s)
| | - M. Zahra
- University of Peshawar, Pakistan
| | | | | | | | | | | | | | | | | | - N. Akhtar
- National University of Medical Science, Pakistan
| | | | | | - H. Yasir
- The Islamia University of Bahawalpur, Pakistan
| | - G. Shakira
- National Institute for Genomics Advanced Biotechnology, Pakistan
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Bairapareddy KC, Khaleel A, Akbar S, Maherban H, Mehdiyeva F, Rasti F, Tamim M, Abdelbasset WK, Ezzat W, Reddy RS, Tedla JS, Ramakrshnan S, Hussein RS, Alaparthi GK, Elsayed SH. Validity and reliability of Squegg device in measuring isometric handgrip strength. Eur Rev Med Pharmacol Sci 2023; 27:10247-10254. [PMID: 37975349 DOI: 10.26355/eurrev_202311_34300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
OBJECTIVE The quantitative measurement of handgrip strength is important in assessing and charting the progress of patients with neuromuscular diseases. The aim of this research was to determine the intra-rater and inter-rater reliability and the validity of the Squegg digital dynamometer. SUBJECTS AND METHODS Twenty-one females and nine male participants with an age range between 18 and 40 years volunteered for the study. Three testers each took three measurements with a Squegg device and a Jamar dynamometer using standardized measurement techniques. Intra- and inter-tester reliability were calculated using the intra-class correlation coefficient (ICC). To investigate the relationship between hand measures and isometric handgrip strength, the Pearson correlation coefficient test was used. To determine the agreement between the two devices, a Bland Altman plot was constructed, and the concurrent validity of Squegg was calculated. RESULTS The intra-rater reliability coefficients for both Jamar and Squegg were greater than 0.99 for all three testers, indicating excellent intra-rater reliability. The inter-rater reliability of Jamar (ICC=0.93) and Squegg (ICC=0.87) was excellent. With an ICC of 0.844 and an r-value of 0.720, Squegg with Jamar demonstrates good validity and statistical significance (p=0.001). CONCLUSIONS The isometric handgrip strength and hand measures showed a moderate correlation in the study population. The Squegg isometric handgrip dynamometer has good concurrent validity and great intra- and inter-rater reliability in healthy individuals. The validity of Squegg in patients with neuromuscular diseases that affect hand function has to be investigated further.
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Affiliation(s)
- K C Bairapareddy
- Department of Physical Therapy, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates.
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Akbar S, Ishtiaq S, Youssef FS, Elhady SS, Belaid AK, Ashour ML. HPLC and GC Characterization of Dicliptera bupleuroides Aerial Parts and Evaluation of Its Anti-Inflammatory Potential in Vitro, in silico and in Vivo Using Carrageenan and Formalin Induced Inflammation in Rat Models. Chem Biodivers 2023; 20:e202300349. [PMID: 37574856 DOI: 10.1002/cbdv.202300349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 08/10/2023] [Accepted: 08/11/2023] [Indexed: 08/15/2023]
Abstract
The current study aimed to evaluate the anti-inflammatory activity of Dicliptera bupleuroides Nees aerial parts methanol extract and its different fractions namely hexane, chloroform, ethyl acetate and butanol in vitro using cyclooxygenase inhibitory assay (COX-2). In vivo anti-inflammatory evaluation was performed using carrageenan and formalin induced inflammation in rat models followed by molecular docking. High performance liquid chromatography (HPLC) and gas chromatography coupled with mass chromatography (GC/MS) analyses were used for chemical analyses of the tested samples. The tested samples showed significant inhibition in COX-2 inhibitory assay where methanol extract (DBM) showed the highest inhibitory potential at 100 μg/mL estimated by 67.86 %. At a dose of 400 mg/kg, all of the examined samples showed pronounced results in carrageenan induced acute inflammation in rat model at 4th h interval with DBM showed the highest efficiency displaying 65.32 % inhibition as compared to the untreated rats. Formalin model was employed for seven days and DBM exhibited 65.33 % and 69.39 % inhibition at 200 and 400 mg/kg, respectively approaching that of the standard on the 7th day. HPLC revealed the presence of caffeic acid, gallic acid and sinapic acid, quercetin and myricetin in DBM. GC/MS analysis of its hexane fraction revealed the presence of 16 compounds belonging mainly to fatty acids and sterols that account for 85.26 % of the total detected compounds. Molecular docking showed that hexadecanoic acid followed by decanedioic acid and isopropyl myristate showed the best fitting within cyclooxygenase-II (COX-II) while nonacosane followed by hexatriacontane and isopropyl myristate revealed the most pronounced fitting within the 5-lipoxygenase (5-LOX) active sites. Absorption, metabolism, distribution and excretion and toxicity prediction (ADMET/ TOPKAT) concluded that most of the detected compounds showed reasonable pharmacokinetic, pharmacodynamic and toxicity properties that could be further modified to be more suitable for incorporation in pharmaceutical dosage forms combating inflammation and its undesirable consequences.
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Affiliation(s)
- Shehla Akbar
- Deparadtment of Pharmacognosy, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
- Department of Pharmacy, College of Pharmacy, University of the Punjab, Lahore, 05422, Pakistan
| | - Saiqa Ishtiaq
- Department of Pharmacy, College of Pharmacy, University of the Punjab, Lahore, 05422, Pakistan
| | - Fadia S Youssef
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Abbasia, Cairo, 11566, Egypt
| | - Sameh S Elhady
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Amal K Belaid
- Department of Medicinal and Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tripoli, Tripoli, Libya
| | - Mohamed L Ashour
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Abbasia, Cairo, 11566, Egypt
- Pharmacy Program, Department of Pharmaceutical Sciences, Batterjee Medical College, Jeddah, 21442, Saudi Arabia
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Akbar S, Subhan F, Akbar A, Habib F, Shahbaz N, Ahmad A, Wadood A, Salman S. Targeting Anti-Inflammatory Pathways to Treat Diabetes-Induced Neuropathy by 6-Hydroxyflavanone. Nutrients 2023; 15:nu15112552. [PMID: 37299516 DOI: 10.3390/nu15112552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/12/2023] [Accepted: 05/14/2023] [Indexed: 06/12/2023] Open
Abstract
It is evident that inflammation and metabolic syndrome instigated by diabetes mellitus can precipitate diabetes-induced neuropathy (DIN) and pain. In order to find an effective therapeutic method for diabetes-related problems, a multi-target-directed ligand model was used. 6-Hydroxyflavanone (6-HF) carrying anti-inflammatory and anti-neuropathic pain potential due to its quadruplicate mechanisms, targeting cyclooxygenase-2 (COX-2), 5-lipoxygenase (5-LOX), and opioid and GABA-A receptors was investigated. The anti-inflammatory potential of the test drug was confirmed utilizing in silico, in vitro, and in vivo tests. A molecular simulation approach was utilized to observe the interaction of 6-HF with the inflammatory enzyme COX-2 as well as opioid and GABA-A receptors. The same was confirmed via in vitro COX-2 and 5-LOX inhibitory assays. In vivo tests were performed to analyze the thermal anti-nociception in the hot-plate analgesiometer and anti-inflammatory action in the carrageenan-induced paw edema model in rodents. The potential anti-nociceptive effect of 6-HF was evaluated in the DIN model in rats. The Naloxone and Pentylenetetrazole (PTZ) antagonists were used to confirm the underlying mechanism of 6-HF. The molecular modeling studies revealed a favorable interaction of 6-HF with the identified protein molecules. In vitro inhibitory studies revealed that 6-HF inhibited the COX-2 and 5-LOX enzymes significantly. The 6-HF at dosages of 15, 30, and 60 mg/kg substantially reduced heat nociception in a hot plate analgesiometer as well as carrageenan-induced paw edema in rodent models. The authors discovered that 6-HF had anti-nociception properties in a streptozotocin-induced diabetic neuropathy model. According to the findings of this study, 6-HF was demonstrated to diminish inflammation caused by diabetes as well as its anti-nociception effect in DIN.
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Affiliation(s)
- Shehla Akbar
- Department of Pharmacy, CECOS University of IT and Emerging Sciences, Peshawar 25000, Pakistan
| | - Fazal Subhan
- Department of Pharmacy, CECOS University of IT and Emerging Sciences, Peshawar 25000, Pakistan
| | - Aroosha Akbar
- North West Institute of Health Sciences, Peshawar 25000, Pakistan
| | - Faiza Habib
- Institute of Basic Medical Sciences, Khyber Medical University, Peshawar 25000, Pakistan
| | - Naila Shahbaz
- Department of Pharmacy, Sarhad University of Science and Technology, Peshawar 25000, Pakistan
| | - Ashfaq Ahmad
- Department of Pharmacy, Sarhad University of Science and Technology, Peshawar 25000, Pakistan
| | - Abdul Wadood
- Department of Biochemistry, Shankar Abdul Wali Khan University, Mardan 23200, Pakistan
| | - Saad Salman
- Department of Pharmacy, CECOS University of IT and Emerging Sciences, Peshawar 25000, Pakistan
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Malatani RT, Bilal S, Mahmood A, Sarfraz RM, Zafar N, Ijaz H, Rehman U, Akbar S, Alkhalidi HM, Gad HA. Development of Tofacitinib Loaded pH-Responsive Chitosan/Mucin Based Hydrogel Microparticles: In-Vitro Characterization and Toxicological Screening. Gels 2023; 9:gels9030187. [PMID: 36975636 PMCID: PMC10048094 DOI: 10.3390/gels9030187] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/21/2023] [Accepted: 02/23/2023] [Indexed: 03/04/2023] Open
Abstract
Tofacitinib is an antirheumatic drug characterized by a short half-life and poor permeability, which necessitates the development of sustained release formulation with enhanced permeability potential. To achieve this goal, the free radical polymerization technique was employed to develop mucin/chitosan copolymer methacrylic acid (MU-CHI-Co-Poly (MAA))-based hydrogel microparticles. The developed hydrogel microparticles were characterized for EDX, FTIR, DSC, TGA, X-ray diffraction, SEM, drug loading; equilibrium swelling (%), in vitro drug release, sol–gel (%) studies, size and zeta potential, permeation, anti-arthritic activities, and acute oral toxicity studies. FTIR studies revealed the incorporation of the ingredients into the polymeric network, while EDX studies depicted the successful loading of tofacitinib into the network. The thermal analysis confirmed the heat stability of the system. SEM analysis displayed the porous structure of the hydrogels. Gel fraction showed an increasing tendency (74–98%) upon increasing the concentrations of the formulation ingredients. Formulations coated with Eudragit (2% w/w) and sodium lauryl sulfate (1% w/v) showed increased permeability. The formulations equilibrium swelling (%) increased (78–93%) at pH 7.4. Maximum drug loading and release (%) of (55.62–80.52%) and (78.02–90.56%), respectively, were noticed at pH 7.4, where the developed microparticles followed zero-order kinetics with case II transport. Anti-inflammatory studies revealed a significant dose-dependent decrease in paw edema in the rats. Oral toxicity studies confirmed the biocompatibility and non-toxicity of the formulated network. Thus, the developed pH-responsive hydrogel microparticles seem to have the potential to enhance permeability and control the delivery of tofacitinib for the management of rheumatoid arthritis.
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Affiliation(s)
- Rania T. Malatani
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sana Bilal
- Faculty of Pharmacy, The University of Lahore, Lahore 54000, Pakistan
| | - Asif Mahmood
- Faculty of Pharmacy, The University of Lahore, Lahore 54000, Pakistan
- Department of Pharmacy, University of Chakwal, Chakwal 48800, Pakistan
- Correspondence: (A.M.); (H.A.G.)
| | | | - Nadiah Zafar
- Department of Pharmaceutics, Faculty of Pharmacy, Universiti Teknologi MARA, Puncak Alam Campus, Bandar, PuncakAlam 42300, Malaysia
| | - Hira Ijaz
- Department of Pharmaceutical Sciences, Pak-Austria Fachhochschule: Institute of Applied Sciences and Technology, Mang, Khanpur Road, Haripur 22620, Pakistan
| | - Umaira Rehman
- College of Pharmacy, University of Sargodha, Sargodha 40100, Pakistan
| | - Shehla Akbar
- Department of Pharmacognosy, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Hala M. Alkhalidi
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Heba A. Gad
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
- Correspondence: (A.M.); (H.A.G.)
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Akbar S. 745 Does a Smartphone Application Improve Medical Students and New ENT Junior Doctors Confidence When Dealing with ENT Clinical Scenarios? Br J Surg 2022. [DOI: 10.1093/bjs/znac269.361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
Introduction
Through the use of online applications, doctors can efficiently access an abundance of medical information to ease transition into subspecialities. This is valuable for otolaryngology in which junior doctors may possess little prior experience. The development of a electronic application within otolaryngology may improve doctors’ ability to carry out the junior doctor role.
Method
A cohort of 10 junior doctors and 10 medical students based at Blackpool Victoria Hospital with no prior clinical otolaryngology experience were asked to rate their confidence in approaching 5 common otolaryngology scenarios before and after being granted access to a clinical e-application. The otolaryngology application was locally constructed and included important otolaryngology information and resources for the junior doctor role.
Results
During the course of the project, every single participant showed an increase in their confidence score when dealing with each scenario following access to the application. This was true for both medical students and junior doctors. Junior doctor confidence scores increased for every scenario following access to the otolaryngology application with an overall average increase of 148%. Medical student confidence scores also increased for every scenario following access to the application with an overall average increase in confidence of of 124%.
Discussion
ENT smartphone applications have been shown to be successful in providing relevant information to medical students and junior doctors to develop their confidence in approaching common clinical scenarios. The provision of such a resource for surgical subspecialties promotes a further step towards a paperless NHS as well as a standardised way of approaching patient care.
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Affiliation(s)
- S Akbar
- Blackpool Victoria Hospital , Blackpool , United Kingdom
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7
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Abstract
Abstract
Aim
Post-operative haematomas are a serious complication of thyroid surgery, causing potential airway compromise and fatality. Over time, hemithyroidectomy operations are increasingly being carried out as day case procedures to encourage enhanced recovery programmes post-operatively as well as reduce bed pressures on an overwhelmed National Health Service due to the COVID-19 pandemic.
Method
Hemithyroidectomy procedures carried out from 2018–2021 were analysed in 3 separate audit cycles. Outcome measures included total length of stay (LOS) in hospital, average time of operation note documentation, admission reason and any complication during or after the procedure, including complications within a 10-day period of the procedure.
Results
The percentage of same-day discharges increased reliably from audit cycle 1 (2018) to audit cycle 2 (2019) to audit cycle 3 (2021); it was found that same-day discharges increased from 48% to 64% to 70%, respectively. It was further found that if operation notes (assumed to act as a proxy for approximate time-out for procedure) were documented towards the end of the working day i.e., 5pm in most units, it was more likely for patients to be admitted overnight. There was one patient from the period of 2018–2021 that was deemed to have had a serious post-operative event.
Conclusions
There was a reliably increase in same-day discharges for each successive audit cycle. There is a limited requirement for patients undergoing hemithyroidectomy procedures to have a surgical drain placed. Hemithyroidectomy operations can be carried out safely as day case procedures based on the observations of this audit.
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Affiliation(s)
- S Akbar
- Royal Albert Edward Infirmary , Wigan , United Kingdom
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Akbar S. 737 Recording and Evaluating Affect and Coping During COVID19 in Healthcare-Workers and Outcomes (REACCH-Out): Mental Health Implications for Our Junior Doctor Cohort. Br J Surg 2022. [DOI: 10.1093/bjs/znac269.360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Abstract
The announcement of the COVID19 pandemic has had a huge impact on surgical practice in the UK. Many surgical trainees were redeployed to areas within the hospital to provide additional cover during the pandemic. Providing adequate wellbeing and support to trainees is imperative during this time of hardship.
18 plastic surgery junior doctors were redeployed to either intensive care units, emergency departments or medical wards during the period of study. A mixed methods survey was completed by trainees exploring rates of anxiety, depression and coping during the first peak of the pandemic. A “COVID care package” was provided to support surgical junior doctors.
The average anxiety score for trainees exceeded that regarded as ‘normal’ as predicted by the Hospital Anxiety and Depression Scale. SHOs were found to show higher scores of anxieties and depression throughout the course of study as compared to their registrar counterparts. 43.8% of junior doctors reported greater levels of stress since the announcement of the pandemic. 81% of junior doctors preferred to have regular check-ins with work colleagues during difficult times.
Providing a strong support system for trainees is vital to ensure doctors are not overwhelmed at this volatile time in their careers. The use of psychological monitoring tools to guide the implementation of appropriate levels of support for individuals could aid in enhanced junior doctor wellbeing and support. Feedback suggests that surgical trainees agree that contact with their parent team and colleagues has a positive impact on their wellbeing and prefer these regular “check-ins” to occur on a monthly basis.
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Affiliation(s)
- S Akbar
- Wythenshawe Hospital , Manchester , United Kingdom
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Akbar S, Ishtiaq S, Jahangir M, Elhady SS, Bogari HA, Alahdal AM, Ashour ML, Youssef FS. Evaluation of The Antioxidant, Antimicrobial, and Anticancer Activities of Dicliptera bupleuroides Isolated Compounds Using In Vitro and In Silico Studies. Molecules 2021; 26:molecules26237196. [PMID: 34885777 PMCID: PMC8659019 DOI: 10.3390/molecules26237196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 11/16/2022] Open
Abstract
Phytochemical investigation of chloroform fraction (DBC) and ethyl acetate fraction (DBE) of D. bupleuroides (Acanthaceae) resulted in the isolation of β-sitosterol (1) from DBC and vanillic acid (2) from DBE, which were first to be isolated from D. bupleuroides. β-Sitosterol (1) exhibited substantial antioxidant activity (IC50 = 198.87 µg/mL), whereas vanillic acid (2) showed significant antioxidant power (IC50 = 92.68 µg/mL) employing 1,1-diphenyl-2-picrylhydrazyl (DPPH*) radical scavenging capacity assay. Both compounds showed pronounced antimicrobial activity using the agar disc diffusion method, particularly against fungi showing MIC values of 0.182 and 0.02 concerning Candida albicans, respectively, and 0.001 mg/mL regarding Penicillium notatum. They revealed considerable antibacterial activity with MIC values ranging between 0.467 and 0.809 mg/mL. Vanillic acid (2) exhibited substantial anticancer potential displaying 48.67% cell viability at a concentration of 100 μg/mL using MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-Diphenyl-2H-Tetrazolium Bromide) assay concerning HepG2 cell lines. These results were further consolidated by in silico studies on different enzymes, where vanillic acid displayed a high fitting score in the active pockets of DNA-gyrase, dihydrofolate reductase, aminoglycoside nucleotidyltransferase, and β-lactamase. It also inhibited human cyclin-dependent kinase 2 (CDK-2) and DNA topoisomerase II, as revealed by the in silico studies. ADME/TOPKAT (absorption, distribution, metabolism, excretion, and toxicity) prediction showed that vanillic acid exhibited reasonable pharmacodynamic, pharmacokinetic, and toxicity properties and, thus, could perfectly together with D. bupleuroides crude extract be incorporated in pharmaceutical preparations to counteract cancer and microbial invasion, as well as oxidative stress. Thus, it is concluded that D. bupleroides could be a potential source of therapeutically active compounds, which would be helpful for the discovery of clinically effective and safe drugs.
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Affiliation(s)
- Shehla Akbar
- Department of Pharmacy, Punjab University College of Pharmacy, University of the Punjab, Lahore 05422, Pakistan
- Correspondence: (S.A.); (S.I.); (M.L.A.)
| | - Saiqa Ishtiaq
- Department of Pharmacy, Punjab University College of Pharmacy, University of the Punjab, Lahore 05422, Pakistan
- Correspondence: (S.A.); (S.I.); (M.L.A.)
| | - Muhammad Jahangir
- Department of Chemistry, Government College University, Lahore 54000, Pakistan;
| | - Sameh S. Elhady
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Hanin A. Bogari
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (H.A.B.); (A.M.A.)
| | - Abdelrahman M. Alahdal
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (H.A.B.); (A.M.A.)
| | - Mohamed L. Ashour
- Pharmacy Program, Department of Pharmaceutical Sciences, Batterjee Medical College, Jeddah 21442, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Abbasia, Cairo 11566, Egypt;
- Correspondence: (S.A.); (S.I.); (M.L.A.)
| | - Fadia S. Youssef
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Abbasia, Cairo 11566, Egypt;
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Ahmad N, Subhan F, Islam NU, Shahid M, Ullah N, Ullah R, Khurram M, Amin MU, Akbar S, Ullah I, Sewell RDE. Pharmacological evaluation of the gabapentin salicylaldehyde derivative, gabapentsal, against tonic and phasic pain models, inflammation, and pyrexia. Naunyn Schmiedebergs Arch Pharmacol 2021; 394:2033-2047. [PMID: 34254154 DOI: 10.1007/s00210-021-02118-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 06/25/2021] [Indexed: 10/20/2022]
Abstract
Gabapentinoids are effective drugs in most animal models of pain and inflammation with variable effects in humans. The current study evaluated the pharmacological activity of gabapentin (GBP) and its salicylaldehyde derivative (gabapentsal; [2-(1-(((2-hydroxybenzylidene) amino) methyl) cyclohexyl) acetic acid]; GPS) in well-established mouse models of nociceptive pain, inflammatory edema, and pyrexia at doses of 25-100 mg/kg. GPS allayed tonic visceral pain as reflected by acetic acid-induced nociception and it also diminished thermally induced nociception as a mimic of phasic thermal pain. Antagonism of GPS-induced antinociceptive activities by naloxone (NLX, 1.0 mg/kg, subcutaneously, s.c), beta-funaltrexamine (β-FNT, 5.0 mg/kg, s.c), naltrindole (NT, 1.0 mg/kg, s.c), and nor-binaltorphimine (NOR-BNI, 5.0 mg/kg, s.c), and pentylenetetrazole (PTZ-15 mg/kg, intraperitoneally, i.p) implicated an involvement of both opioidergic and GABAergic mechanisms. Tail immersion test was conducted in order to delineate the mechanistic insights of antinociceptive response. Inflammatory edema induced by carrageenan, histamine, or serotonin was also effectively reversed by GPS in a fashion analogous to aspirin (150 mg/kg, i.p), chlorpheniramine (1.0 mg/kg, i.p), and mianserin (1.0 mg/kg, i.p), respectively. Additionally, yeast-induced pyrexia was decreased by GPS in a comparable manner to acetaminophen (50 mg/kg, i.p). These observations suggest that GPS possesses ameliorative properties in tonic, phasic, and tail immersion tests of nociception via opioidergic and GABAergic mechanisms, curbs inflammatory edema, and is antipyretic in nature.
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Affiliation(s)
- Nisar Ahmad
- Islam College of Pharmacy, Pasrur Road, Sialkot, Punjab, 51040, Pakistan.
| | - Fazal Subhan
- Department of Pharmacy, Cecos University of IT and Emerging Sciences, Peshawar, Pakistan
| | - Nazar Ul Islam
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Pakistan
| | - Muhammad Shahid
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Pakistan
| | - Naseem Ullah
- Islam College of Pharmacy, Pasrur Road, Sialkot, Punjab, 51040, Pakistan
| | - Rahim Ullah
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | | | | | - Shehla Akbar
- Department of Pharmacy, Cecos University of IT and Emerging Sciences, Peshawar, Pakistan
| | - Ihsan Ullah
- Department of Pharmacy, University of Swabi, Swabi, Pakistan
| | - Robert D E Sewell
- Cardiff School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, CF10 3NB, UK
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Rashid AJ, Bashir S, Bukhari NI, Abbas N, Raza A, Munir A, Ijaz QA, Akbar S, Arshad N, Ishtiaq S. Development and validation of single analytical HPLC method for determination of flavoxate HCl in bulk, tablets and biological fluids. Pak J Pharm Sci 2021; 34:1629-1637. [PMID: 34799341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A simple, sensitive and precise high performance liquid chromatographic (HPLC) method was developed and validated for determination of flavoxate HCI in raw material, tablets and biological fluids. The method followed by using the Zorbax XDB-C18 column containing Di-isobutyl n-octadeceylsilane (4.6mm×150mm, 5μm). The mobile phase consisted of acetonitrile: methanol: 0.15M sodium perchlorate (17:35:48 v/v) having pH 3. UV detection was carried out at 229nm at 40°C. Results indicated that the method has successfully established and validated in accordance with ICH guidelines acceptance criteria for linearity (0.03-7.5μg), accuracy (101.18-101.28%), robustness of column age and column lot (peak area %CV<0.04, purity %CV< 0.006) and robustness of HPLC condition (%CV<0.02), precision (intra and inter day precision assay, %CV values for peak area and percent purity of flavoxate HCl<2%) and system suitability parameters. The average noise, theoretical LOD and LOQ were found to be 0.01 mAU, 0.03 mAU and 0.6ng, respectively. The Coefficient of determination (r2) ranging from 0.03μg to 7.5μg, 0.99 which was within acceptable criteria of r2 & gt 0.99. The spiked recoveries of samples were 101.28, 101.18 and 101.18% respectively. All data revealed that this method can be used for in-vitro & in-vivo determination of flavoxate HCI in various pharmaceutical preparations.
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Affiliation(s)
- Ahmad Junaid Rashid
- Faculty of Pharmacy, Department of Pharmaceutics, University of Sargodha, Sargodha, Pakistan
| | - Sajid Bashir
- Faculty of Pharmacy, Department of Pharmaceutics, University of Sargodha, Sargodha, Pakistan
| | | | - Nasir Abbas
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Atif Raza
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Ans Munir
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Qazi Aamir Ijaz
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Shehla Akbar
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Numera Arshad
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Saiqa Ishtiaq
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
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12
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Akbar S, Ishtiaq S, Ijaz B, Arshad N, Rehman S, Manzoor A, Rehman U, Tariq S. In vitro phytochemical and anticancer activity of Misopates orontium L. and Dicliptera bupleuroides Nees. Pak J Pharm Sci 2021; 34:1195-1202. [PMID: 34602389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In the present study phytochemical analysis and anticancer activity of Misopates orontium L. and Dicliptera bupleuroides Nees was carried out. Methanolic extracts of M. orontium and D. bupleuroides were selected for phytochemical analysis. The present analysis showed the presence of phytochemical such as carbohydrates, proteins, tannins, glycosides, alkaloids, saponins, phenols and flavonoids in M. orontium and D. bupleuroides. Anticancer assays including MTT, Alamar Blue (AB), Neutral Red (NR) and lactate dehydrogenase (LDH) were employed on whole herb methanolic extract and all other fractions of both plants to calculate the % age of cell viability and cell cytotoxicity. The percentage of cell viability was highly significant in all anticancer assays for all fractions. Therefore, ethyl acetate and aqueous fractions showed the excellent profile in evaluation of cytotoxicity in each assay. All above findings indicated that the whole herb of both selected plants have strong anticancer activity.
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Affiliation(s)
- Shehla Akbar
- Department of Pharmacy, Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Saiqa Ishtiaq
- Department of Pharmacy, Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Bushra Ijaz
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Numera Arshad
- Department of Pharmacy, Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Saira Rehman
- Department of Pharmacy, Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Asma Manzoor
- Faculty of Pharmacy, University of Karachi, Karachi, Pakistan
| | - Umaira Rehman
- Faculty of Pharmacy, University of Sargodha, Sargodha, Pakistan
| | - Somayya Tariq
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
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13
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Shahid M, Subhan F, Islam NU, Ahmad N, Farooq U, Abbas S, Akbar S, Ullah I, Raziq N, Din ZU. The antioxidant N-(2-mercaptopropionyl)-glycine (tiopronin) attenuates expression of neuropathic allodynia and hyperalgesia. Naunyn Schmiedebergs Arch Pharmacol 2021; 394:603-617. [PMID: 33079239 DOI: 10.1007/s00210-020-01995-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 10/08/2020] [Indexed: 02/06/2023]
Abstract
The current pharmacotherapy of neuropathic pain is inadequate as neuropathic pain involves varied clinical manifestations with multifactorial etiology, modulated by a cascade of physical and molecular events leading to different clinical presentations of pain. There is an accumulating evidence of the involvement of oxidative stress in neuropathy, and antioxidants have shown promise in mitigating neuropathic pain syndromes. To explore the evidence supporting this beneficial proclivity of antioxidants, this study investigated the antinociceptive effectiveness of N-(2-mercaptopropionyl)glycine or tiopronin, a well-recognized aminothiol antioxidant, in a refined chronic constriction injury (CCI) rat model of neuropathic pain. Tiopronin (10, 30, and 90 mg/kg, i.p.) and pregabalin (30 mg/kg, i.p.) were administered daily after CCI surgery. The neuropathic paradigms of mechanical/cold allodynia and mechanical/heat hyperalgesia were assessed on days 3, 7, 14, and 21 post-nerve ligation. At the end of study, malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH) levels were estimated in the sciatic nerve, dorsal root ganglion, and spinal cord for assessing the extent of oxidative stress. The expression of neuropathic nociception was attenuated by tiopronin which was observed as a significant attenuation of CCI-induced allodynia and hyperalgesia. Tiopronin reversed the neuronal oxidative stress by significantly reducing MDA, and increasing SOD, CAT, and GSH levels. Pregabalin also showed similar beneficial propensity on CCI-induced neuropathic aberrations. These findings suggest prospective neuropathic pain attenuating efficacy of tiopronin and further corroborated the notion that antioxidants are effective in mitigating the development and expression of neuropathic pain and underlying neuronal oxidative stress.
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Affiliation(s)
- Muhammad Shahid
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, 25000, Pakistan.
| | - Fazal Subhan
- Department of Pharmacy, CECOS University of IT and Emerging Sciences, Peshawar, Pakistan.
| | - Nazar Ul Islam
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, 25000, Pakistan
| | - Nisar Ahmad
- Faculty of Pharmacy, National University of Pakistan, Sialkot, Punjab, Pakistan
| | - Umar Farooq
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, 25000, Pakistan
| | - Sudhair Abbas
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, 25000, Pakistan
| | - Shehla Akbar
- Department of Pharmacy, CECOS University of IT and Emerging Sciences, Peshawar, Pakistan
| | - Ihsan Ullah
- Department of Pharmacy, University of Swabi, Swabi, Pakistan
| | - Naila Raziq
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, 25000, Pakistan
| | - Zia Ud Din
- Department of Anatomy, Khyber Medical College, Peshawar, Pakistan
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Arshad N, Ishtiaq S, Jahangir M, Akbar S. Evaluation of antioxidant, antimicrobial and anticancer activities of compounds reported Saussurea hypoleuca Spreng. roots. Pak J Pharm Sci 2021; 34:819-824. [PMID: 34275820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Current study was intended to isolate bioactive compounds from ethyl acetate fraction of Saussurea hypoleuca root extract and evaluation of their antioxidant, antimicrobial and anti-cancerous activities which might be helpful for their chemo preventive potential against selected bacterial strains. Column chromatography was done for isolation of compounds which were characterized on the basis of extensive spectroscopic analysis; Infra-red (IR), Electron Ionization (EI-Positive), Proton Nuclear Magnetic Resonance (1H-NMR) and Carbon Nuclear Magnetic Resonance (13C-NMR). Two compounds were identified, as sesquiterpenes (40mg) and linoleic acid (33mg) from 10 grams of ethyl acetate fraction. Both compounds have shown in vitro antioxidant activity which in regard; 2, 2- diphenyl-1-picrylhydrazyl (DPPH) scavenging potential was high in sesquiterpenes (261.81) as compared to linoleic acid (90.89). The minimum inhibitory concentrations (MIC) of both compounds were evaluated in various bacterial and fungal strains against respective controls. However, in human hepatocellular carcinoma (Hep G2 cell lines) sesquiterpenes exhibited strong anticancer potential than linolenic acid which might be its potential free radical inactivator in MTT assay. This paper directs the ethano medicinal worth of plant root as it possesses bioactive compounds which in our best knowledge these compounds isolated and reported first time from this plant root specie.
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Affiliation(s)
- Numera Arshad
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Saiqa Ishtiaq
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | | | - Shehla Akbar
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
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15
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Ahmad N, Subhan F, Islam NU, Shahid M, Ullah N, Ullah R, Akbar S, Amin MU, Khurram M, Ullah I, Sewell RDE. A novel gabapentin analogue assuages neuropathic pain response in chronic sciatic nerve constriction model in rats. Behav Brain Res 2021; 405:113190. [PMID: 33607164 DOI: 10.1016/j.bbr.2021.113190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 02/11/2021] [Accepted: 02/11/2021] [Indexed: 01/19/2023]
Abstract
Gabapentin (GBP) is an established drug that has been used in the management of symptoms of neuropathy but it is associated with unwanted side effects such as sedation and motor incoordination. The goal of the study was to find out a drug with greater efficacy and safety for the treatment of neuropathic pain. Our previously synthesized GABA analogue (Gabapentsal, GPS) was tested (25-100 mg/kg, i.p) in chronic constriction injury (CCI) induced nociceptive model of static allodynia, dynamic allodynia, thermal hyperalgesia, mechanical hyperalgesia and cold allodynia in rats (Sprague Dawley). Open field and rotarod tests were performed to assess the impact of GPS on the motor performance of the animals. GBP (100 mg/kg, i.p) was used as a standard for comparison. GPS dose dependently reduced static (P <0.001) and dynamic allodynia (P <0.001), thermal hyperalgesia (P <0.001), mechanical hyperalgesia (P < 0.001) and cold allodynia (P < 0.001). In comparison to GBP, GPS failed to alter any significantly the motor performance of rats in both the open field and rotarod assays. These results suggest that GPS is effective in alleviating nociception in CCI neuropathic pain model but free from the side effect of motor discoordination seen in the treatment with GBP. In conclusion, GPS may prove to be a prospectively more effective and safer option in the management of neuropathic syndromes.
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Affiliation(s)
- Nisar Ahmad
- Islam College of Pharmacy, Sialkot, Pakistan.
| | - Fazal Subhan
- Department of Pharmacy, CECOS University of IT and Emerging Sciences, Peshawar, Pakistan.
| | - Nazar Ul Islam
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Pakistan.
| | - Muhammad Shahid
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Pakistan.
| | | | - Rahim Ullah
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan.
| | - Shehla Akbar
- Department of Pharmacy, CECOS University of IT and Emerging Sciences, Peshawar, Pakistan.
| | | | - Muhammad Khurram
- Department of Pharmacy, Abasyn University Peshawar, Peshawar, Pakistan.
| | - Ihsan Ullah
- Department of Pharmacy, University of Swabi, Swabi, Pakistan.
| | - Robert D E Sewell
- Cardiff School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, CF103NB, UK.
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16
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Shahid M, Subhan F, Islam NU, Ahmad N, Farooq U, Abbas S, Akbar S, Ullah I, Raziq N, Din ZU. Correction to: The antioxidant N-(2-mercaptopropionyl)-glycine (tiopronin) attenuates expression of neuropathic allodynia and hyperalgesia. Naunyn Schmiedebergs Arch Pharmacol 2020; 394:579. [PMID: 33284400 DOI: 10.1007/s00210-020-02033-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Muhammad Shahid
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, 25000, Pakistan.
| | - Fazal Subhan
- Department of Pharmacy, CECOS University of IT and Emerging Sciences, Peshawar, Pakistan.
| | - Nazar Ul Islam
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, 25000, Pakistan
| | - Nisar Ahmad
- Faculty of Pharmacy, National University of Pakistan, Sialkot, Punjab, Pakistan
| | - Umar Farooq
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, 25000, Pakistan
| | - Sudhair Abbas
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, 25000, Pakistan
| | - Shehla Akbar
- Department of Pharmacy, CECOS University of IT and Emerging Sciences, Peshawar, Pakistan
| | - Ihsan Ullah
- Department of Pharmacy, University of Swabi, Swabi, Pakistan
| | - Naila Raziq
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Khyber Pakhtunkhwa, 25000, Pakistan
| | - Zia Ud Din
- Department of Anatomy, Khyber Medical College, Peshawar, Pakistan
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Haleema SO, Akbar S, Rowley E, Polski JM, Mneimneh W. A Diagnostically Challinging Case of Primary Thyroid Kappa-restricted Plasma Cell- Rich Hematolymphoid Neoplasm with Focal Plasmablastic Differentiation. Am J Clin Pathol 2020. [DOI: 10.1093/ajcp/aqaa161.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction/Objective
Most low-grade B-cell lymphomas of the thyroid are extranodal marginal cell lymphomas (MZL) and may exhibit focal plasma cell differentiation (PCD). PCD could occasionally be extensive, mimicking a true plasma cell neoplasm (PCN). PCN of the thyroid are extremely rare, representing either a component of plasma cell myeloma (PCM), or a primary thyroid extraosseous plasmacytoma (EOPC). We present a case of primary thyroid plasma cell (PC)-rich neoplasm with considerable diagnostic challenge.
Methods
A 46-year-old male underwent total thyroidectomy for hypothyroidism and compressive symptoms. Microscopically, sheets and nodules of PC with focal plasmablastic features were demonstrated in a background of fibrosing chronic thyroiditis. One benign perithyroidal lymph node was seen. The differential diagnosis included B-cell neoplasm with extensive PCD (ie, MZL or lymphoplasmacytic lymphoma) and PCN.
Results
Immunohistochemically, the PCs were positive for CD79a, MUM1, BCL2 and IgM with Kappa light-chain restriction and partial CD138 expression, and negative for CD20, PAX5, HHV8, Cyclin-D1, SOX11, CD117 and IgG. EBER was negative. Rare reactive-appearing B-cell aggregates with associated T-cells were noted. FISH for API/MALT1-fusion t(11;18) and PCR for MYD-88 mutation were negative. However, polysomy 18 (seen in 15–33% of B-cell lymphomas, including MZL) was detected. Serum proteins and PCM workup were negative.
The findings were consistent with primary thyroid Kappa-restricted PC-rich neoplasm. While the absence of detectable B-cell neoplastic component was suggestive of EOPC, the diagnosis of MZL with extensive PCD was favored due to the thyroid involvement in a background of thyroiditis, absence of lymph node involvement, detection of polysomy 18, and absence of MYD-88. Follow-up of the patient was thought to be most reasonable.
Conclusion
Plasma cell-rich hematolymphoid neoplasms of the thyroid may cause a considerable diagnostic challenge. Differentiating between B-cell lymphomas with extensive PCD and PCN may be difficult or even impossible by morphology alone. Additional ancillary tests may be necessary.
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Affiliation(s)
- S O Haleema
- Pathology, University of South Alabama, Mobile, Alabama, UNITED STATES
| | - S Akbar
- Pathology, University of South Alabama, Mobile, Alabama, UNITED STATES
| | - E Rowley
- Pathology, University of South Alabama, Mobile, Alabama, UNITED STATES
| | - J M Polski
- Pathology, University of South Alabama, Mobile, Alabama, UNITED STATES
| | - W Mneimneh
- Pathology, University of South Alabama, Mobile, Alabama, UNITED STATES
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Akbar S, Ishtiaq S. Hepatoprotective effect of Misopates orontium in rats. BANGL J PHARMACOL 2020. [DOI: 10.3329/bjp.v15i3.45334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
This study explores the hepatoprotective and in vivo antioxidant activities of Misopates orontium. Toxicity studies were conducted on human red blood cells and DNA. Initially, acute hepatoprotective study was done on Wistar rats by giving crude, aqueous, n-hexane, chloroform, ethyl acetate and n-butanol fractions 200 mg/kg/day for 24 hours. Liver function tests were performed. The ethyl acetate fraction was selected for 14 days study. Hepatotoxicity induced by paracetamol (350 mg/kg) orally. All the liver function tests, liver peroxidation tests i.e malondialdehyde, glutathione and histopathological study of the liver was performed at the end of study. In hepatoprotective studies, ethyl acetate fraction showed a significant decrease in the level of serum enzymes (97.6 IU/L), (101 IU/L), (145.17 IU/L) and (0.68 mg/dL). Peroxidation levels in liver homogenates of ethyl acetate-treated group decreased in malondialdehyde (42.5) while reduced glutathione level increased (106.5 nmol/g). This study shows that M. orontium has hepatoprotective and antioxidant effects.
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19
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Akbar S, Hasanain SK, Ivashenko O, Dutka MV, Ali NZ, Blake GR, De Hosson JTM, Rudolf P. Defect ferromagnetism induced by lower valence cation doping: Li-doped SnO 2 nanoparticles. RSC Adv 2020; 10:26342-26348. [PMID: 35519767 PMCID: PMC9055377 DOI: 10.1039/d0ra03644g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 06/23/2020] [Indexed: 11/21/2022] Open
Abstract
To explore the role of Li in establishing room-temperature ferromagnetism in SnO2, the structural, electronic and magnetic properties of Li-doped SnO2 compounds were studied for different size regimes, from nanoparticles to bulk crystals. Li-doped nanoparticles show ferromagnetic ordering plus a paramagnetic contribution for particle sizes in the range of 16-51 nm, while pure SnO2 and Li-doped compounds below and above this particular size range are diamagnetic. The magnetic moment is larger for compositions where the Li substitutes for Sn than for compositions where Li prevalently occupies interstitial sites. The observed ferromagnetic ordering in Li-doped SnO2 nanoparticles is mainly due to the holes created when Li substitutes at a Sn site. Conversely, Li acts as an electron donor and electrons from Li may combine with holes to decrease ferromagnetism when lithium mainly occupies interstitial sites in the SnO2 lattice.
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Affiliation(s)
- S Akbar
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 NL-9747AG Groningen The Netherlands .,Department of Physics, Quaid-i-Azam University Islamabad Pakistan
| | - S K Hasanain
- Department of Physics, Quaid-i-Azam University Islamabad Pakistan
| | - O Ivashenko
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 NL-9747AG Groningen The Netherlands
| | - M V Dutka
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 NL-9747AG Groningen The Netherlands
| | - N Z Ali
- National Centre for Physics, QAU Campus Shahdra Valley Road, P.O. Box No. 2141 Islamabad 44000 Pakistan
| | - G R Blake
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 NL-9747AG Groningen The Netherlands
| | - J Th M De Hosson
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 NL-9747AG Groningen The Netherlands
| | - P Rudolf
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 NL-9747AG Groningen The Netherlands
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Akbar S, Ishtiaq S, Hussain K, Ghayas S, Bushra R. Hepatoprotective and antioxidant activity of Dicliptera bupleuroides Nees. extracts on paracetamol induced hepatotoxicity in rats. Pak J Pharm Sci 2020; 33:1899-1906. [PMID: 33612475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Aim of this study to evaluate the safety profile, hepatoprotective and in-vivo antioxidant activities of Dicliptera bupleuroides Nees. Toxicity studies were conducted in human RBCs and DNA by using standard procedures. Acute hepatoprotective investigation was carried out in albino rats by treated with all six fractions of D. bupleuroides 350 mg/kg/day. ALT, AST, ALP and total bilirubin (TB) were performed. The n-hexane fraction (200 mg/kg/day) exhibited appropriate hepatoprotective activity hence subjected to chronic study (14 days). Paracetamol induced the hepatotoxicity (350mg/kg) and silymarin (50 mg/kg) was standard drug. Liver function tests, liver peroxidation tests and histopathological examination were performed at the end. Hexane fraction showed significant decrease in the level of ALT (88.1±7.8), AST (93.8±7.6), ALP (136.3±8.4) and TB (0.6±0.03) as compared to the standard drug (p>0.05). Rats treated with ethyl acetate fraction showed decrease in MDA (42.8±0.7) while GSH was found to be increased (107.7±1.8) against the toxic group (51.3±2.9), (73.6±4.0) respectively. All the drug extracts decreased the oxidative stress and protect the DNA from free hydroxyl radicals. DNA damage protection activity of these fractions is due to phytochemicals present in these fractions. These results indicate that the plant fractions possess significant hepatoprotective and antioxidant activities with no toxic effects.
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Affiliation(s)
- Shehla Akbar
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Saiqa Ishtiaq
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Khalid Hussain
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Sana Ghayas
- Department of Pharmaceutical Sciences, Dow College of Pharmacy, Dow University of Health Sciences, Karachi, Pakistan
| | - Rabia Bushra
- Department of Pharmaceutical Sciences, Dow College of Pharmacy, Dow University of Health Sciences, Karachi, Pakistan
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21
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Abstract
Muriolide (1), a new aromatic lactone, has been isolated from the ethyl acetate fraction of Ranunculus muricatus. The compound was structurally characterized with the help of UV, IR, mass, 1D- and 2D-NMR data. It was tested in vitro for antioxidant and lipoxygenase inhibitory potential. Compound 1 showed good DPPH radical scavenging activity (IC50=56.9 μM), however it was moderately active against lipoxygenase enzyme (IC50=68.3 μM).
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Affiliation(s)
- Naila Raziq
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Pakistan
| | - Muhammad Saeed
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Muhammad Shaiq Ali
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Mehreen Lateef
- Multidisciplinary Research Lab, Bahria University Medical & Dental College, Karachi, Pakistan
| | - Muhammad Shahid
- Department of Pharmacy, Sarhad University of Science and Information Technology, Peshawar, Pakistan
| | - Shehla Akbar
- Department of Pharmacy, CECOS University of Information Technology and Emerging Sciences, Peshawar, Pakistan
| | - Salman Zafar
- Institute of Chemical Sciences, University of Peshawar, Peshawar, Pakistan
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22
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Akbar S, Subhan F, Shahid M, Wadood A, Shahbaz N, Farooq U, Ayaz M, Raziq N. 6-Methoxyflavanone abates cisplatin-induced neuropathic pain apropos anti-inflammatory mechanisms: A behavioral and molecular simulation study. Eur J Pharmacol 2020; 872:172972. [PMID: 32006559 DOI: 10.1016/j.ejphar.2020.172972] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 12/31/2019] [Accepted: 01/28/2020] [Indexed: 01/03/2023]
Abstract
Cisplatin is used as a first line therapy in treating cancers. However, its use is often accompanied with the development of peripheral neuropathy. 6-Methoxyflavanone (6-MeOF) is a positive allosteric modulator at GABAA receptors and is known for attenuating diabetes-induced neuropathic pain. Neuropathy was induced in male Sprague-Dawley rats (150-250 g), via intraperitoneal injection of cisplatin (3 mg/kg) once a week for four consecutive weeks. 6-MeOF (25, 50 and 75 mg/kg, i.p) and gabapentin (75 mg/kg, i.p) were administered 30 min before each cisplatin injection. Static and dynamic allodynia were assessed using von Frey filaments and cotton buds. The anti-inflammatory activity was analyzed with plethysmometer. Body weights were also measured each week. The binding affinity of 6-MeOF with chloride channel, Cyclooxygenase-1 (COX-1) and Cyclooxygenase-2 (COX-2) was studied using docking approach. The in vitro COX-1 and COX-2 inhibitory effect of 6-MeOF was conducted with COX colorimetric assay. Administration of cisplatin for four consecutive weeks induced static (decreased paw withdrawal threshold; PWT) and dynamic allodynia (decreased paw withdrawal latency; PWL). Co-administration of 6-MeOF for four weeks significantly attenuated the cisplatin-induced expression of nocifensive behaviors observed as significant increase in PWT and PWL. Moreover, it also prevented the body weight loss induced by cisplatin administration. In silico studies depicted a good interaction of 6-MeOF with chloride ion channels and COX-1 and COX-2 enzymes. The in vitro study confirmed the inhibitory activity of 6-MeOF for COX-1 and COX-2. 6-MeOF may be effective in attenuating cisplatin-induced allodynia, probably through interaction with GABAergic receptors and reducing inflammation.
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Affiliation(s)
- Shehla Akbar
- Department of Pharmacy, CECOS University of IT and Emerging Science, Peshawar, Pakistan.
| | - Fazal Subhan
- Department of Pharmacy, CECOS University of IT and Emerging Science, Peshawar, Pakistan.
| | - Muhammad Shahid
- Department of Pharmacy, Sarhad University of Science and IT, Peshawar, Pakistan.
| | - Abdul Wadood
- Department of Biochemistry, UCS, Shankar Abdul Wali Khan University, Mardan, Pakistan.
| | - Naila Shahbaz
- Department of Pharmacy, Sarhad University of Science and IT, Peshawar, Pakistan.
| | - Umar Farooq
- Department of Pharmacy, Sarhad University of Science and IT, Peshawar, Pakistan.
| | - Muhammad Ayaz
- Department of Pharmacy, University of Malakand, Peshawar, Pakistan.
| | - Naila Raziq
- Department of Pharmacy, Sarhad University of Science and IT, Peshawar, Pakistan.
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Xie T, Stathopoulou MG, Akbar S, Oster T, Siest G, Yen FT, Visvikis-Siest S. Effect of LSR polymorphism on blood lipid levels and age-specific epistatic interaction with the APOE common polymorphism. Clin Genet 2019; 93:846-852. [PMID: 29178324 DOI: 10.1111/cge.13181] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/18/2017] [Accepted: 11/21/2017] [Indexed: 12/28/2022]
Abstract
The lipolysis stimulated lipoprotein receptor (LSR) is an apolipoprotein (Apo) B and ApoE receptor that participates in the removal of triglyceride-rich lipoproteins during the postprandial phase. LSR gene is located upstream of APOE, an important risk factor for cardiovascular disease (CVD). Since the APOE common polymorphism significantly affects the variability of lipid metabolism, this study aimed to determine the potential impact of a functional SNP rs916147 in LSR gene on lipid traits in healthy subjects and to investigate potential epistatic interaction between LSR and APOE. Unrelated healthy adults (N = 432) and children (N = 328, <18 years old) from the STANISLAS Family Study were used. Age-specific epistasis was observed between APOE and LSR, reversing the protective effect of APOE ε2 allele on cholesterol, ApoE and low-density lipoprotein levels (β: .114, P: .777 × 10-8 , β: .125, P: .639 × 10-3 , β: .059, P: .531 × 10-3 , respectively). This interaction was verified in an independent adult population (n = 1744). These results highlight the importance of the LSR polymorphism and reveal the existence of complex molecular links between LSR and ApoE for the regulation of lipid levels, revealing potential new pathways of interest in type III hyperlipidemia and its involvement in CVD pathology.
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Affiliation(s)
- T Xie
- UMR INSERM, Interactions Gène-Environnement en Physiopathologie Cardio-Vasculaire (IGE-PCV), Université de Lorraine, Nancy, France
| | - M G Stathopoulou
- UMR INSERM, Interactions Gène-Environnement en Physiopathologie Cardio-Vasculaire (IGE-PCV), Université de Lorraine, Nancy, France
| | - S Akbar
- UMR INSERM, Interactions Gène-Environnement en Physiopathologie Cardio-Vasculaire (IGE-PCV), Université de Lorraine, Nancy, France.,EA3998 INRA USC 0340 UR AFPA, Université de Lorraine, Vandœuvre-lès-Nancy, France
| | - T Oster
- EA3998 INRA USC 0340 UR AFPA, Université de Lorraine, Vandœuvre-lès-Nancy, France
| | - G Siest
- UMR INSERM, Interactions Gène-Environnement en Physiopathologie Cardio-Vasculaire (IGE-PCV), Université de Lorraine, Nancy, France
| | - F T Yen
- EA3998 INRA USC 0340 UR AFPA, Université de Lorraine, Vandœuvre-lès-Nancy, France
| | - S Visvikis-Siest
- UMR INSERM, Interactions Gène-Environnement en Physiopathologie Cardio-Vasculaire (IGE-PCV), Université de Lorraine, Nancy, France.,Department of Internal Medicine and Geriatrics, CHU Nancy-Brabois, Nancy, France
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Chatha SR, Perera D, Jameel R, Akbar S. P369Cardiovascular MR above all:diagnostic uncertainty in a lupus patient with acute heart failure. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez109.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S R Chatha
- University Hospital of North Staffordshire, ITU, Stoke On Trent, United Kingdom of Great Britain & Northern Ireland
| | - D Perera
- Barts Health NHS Trust, Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - R Jameel
- University Hospital of North Staffordshire, ITU, Stoke On Trent, United Kingdom of Great Britain & Northern Ireland
| | - S Akbar
- Barking Havering and Redbridge University Hospitals NHS Trust, Romford, United Kingdom of Great Britain & Northern Ireland
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25
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Pedersen A, Howe A, Earnshaw C, Akbar S, Chmiel W, Choonara H, Jalil H, Logue G, Evans J, Gaillemin O, Vilches-Moraga A. 1SHOP-75: SAFER HANDOVER FOR OLDER PEOPLE 75+. Age Ageing 2019. [DOI: 10.1093/ageing/afy211.01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - A Howe
- Salford Royal NHS Foundation Trust
| | | | - S Akbar
- Salford Royal NHS Foundation Trust
| | - W Chmiel
- Salford Royal NHS Foundation Trust
| | | | - H Jalil
- Salford Royal NHS Foundation Trust
| | - G Logue
- Salford Royal NHS Foundation Trust
| | - J Evans
- Salford Royal NHS Foundation Trust
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26
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Akbar S, Hasanain SK, Ivashenko O, Dutka MV, Akhtar N, De Hosson JTM, Ali NZ, Rudolf P. Defect ferromagnetism in SnO 2:Zn 2+ hierarchical nanostructures: correlation between structural, electronic and magnetic properties. RSC Adv 2019; 9:4082-4091. [PMID: 35518058 PMCID: PMC9060562 DOI: 10.1039/c9ra00455f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 01/24/2019] [Indexed: 11/24/2022] Open
Abstract
We report on the ferromagnetism of Sn1−xZnxO2 (x ≤ 0.1) hierarchical nanostructures with various morphologies synthesized by a solvothermal route. A room temperature ferromagnetic and paramagnetic response was observed for all compositions, with a maximum in ferromagnetism for x = 0.04. The ferromagnetic behaviour was found to correlate with the presence of zinc on substitutional Sn sites and with a low oxygen vacancy concentration in the samples. The morphology of the nanostructures varied with zinc concentration. The strongest ferromagnetic response was observed in nanostructures with well-formed shapes, having nanoneedles on their surfaces. These nanoneedles consist of (110) and (101) planes, which are understood to be important in stabilizing the ferromagnetic defects. At higher zinc concentration the nanostructures become eroded and agglomerated, a phenomenon accompanied with a strong decrease in their ferromagnetic response. The observed trends are explained in the light of recent computational studies that discuss the relative stability of ferromagnetic defects on various surfaces and the role of oxygen vacancies in degrading ferromagnetism via an increase in free electron concentration. We report on the ferromagnetism of Sn1−xZnxO2 (x ≤ 0.1) hierarchical nanostructures with various morphologies synthesized by a solvothermal route.![]()
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Affiliation(s)
- S Akbar
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 NL-9747AG Groningen The Netherlands .,Department of Physics, Quaid-i-Azam University Islamabad Pakistan
| | - S K Hasanain
- Department of Physics, Quaid-i-Azam University Islamabad Pakistan
| | - O Ivashenko
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 NL-9747AG Groningen The Netherlands
| | - M V Dutka
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 NL-9747AG Groningen The Netherlands
| | - N Akhtar
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 NL-9747AG Groningen The Netherlands
| | - J Th M De Hosson
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 NL-9747AG Groningen The Netherlands
| | - N Z Ali
- National Centre for Physics, Quaid-i-Azam University Campus 45320 Islamabad Pakistan.,BAM Federal Institute for Materials Research and Testing Richard-Willstaetter-Strasse 11 Berlin Germany
| | - P Rudolf
- Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 4 NL-9747AG Groningen The Netherlands
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Akbar S, Coiera E, Magrabi F. ISQUA18-1534How Safe is mHealth? Concerns about Patient-Facing Mobile Health Applications and their Consequences. Int J Qual Health Care 2018. [DOI: 10.1093/intqhc/mzy167.74] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S Akbar
- Carolina Health Informatics Program, University of North Carolina at Chapel Hill, North Carolina, United States
| | - E Coiera
- Center for Health Informatics, Australian Institute of Health Innovation, Macquarie University, Sydney, Australia
| | - F Magrabi
- Center for Health Informatics, Australian Institute of Health Innovation, Macquarie University, Sydney, Australia
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Akbar S, Peikari M, Salama S, Nofech-Mozes S, Martel AL. The transition module: a method for preventing overfitting in convolutional neural networks. Comput Methods Biomech Biomed Eng Imaging Vis 2018; 7:260-265. [PMID: 31192055 DOI: 10.1080/21681163.2018.1427148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Digital pathology has advanced substantially over the last decade with the adoption of slide scanners in pathology labs. The use of digital slides to analyse diseases at the microscopic level is both cost-effective and efficient. Identifying complex tumour patterns in digital slides is a challenging problem but holds significant importance for tumour burden assessment, grading and many other pathological assessments in cancer research. The use of convolutional neural networks (CNNs) to analyse such complex images has been well adopted in digital pathology. However, in recent years, the architecture of CNNs has altered with the introduction of inception modules which have shown great promise for classification tasks. In this paper, we propose a modified 'transition' module which encourages generalisation in a deep learning framework with few training samples. In the transition module, filters of varying sizes are used to encourage class-specific filters at multiple spatial resolutions followed by global average pooling. We demonstrate the performance of the transition module in AlexNet and ZFNet, for classifying breast tumours in two independent data-sets of scanned histology sections; the inclusion of the transition module in these CNNs improved performance.
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Affiliation(s)
- S Akbar
- Sunnybrook Research Institute, University of Toronto, Toronto, Canada
| | - M Peikari
- Sunnybrook Research Institute, University of Toronto, Toronto, Canada
| | - S Salama
- Sunnybrook Health Sciences Centre, Toronto, Canada
| | - S Nofech-Mozes
- Sunnybrook Research Institute, University of Toronto, Toronto, Canada.,Sunnybrook Health Sciences Centre, Toronto, Canada
| | - A L Martel
- Sunnybrook Research Institute, University of Toronto, Toronto, Canada
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Rajkumar JS, Venkatesan G, Rajkumar A, Prabhakaran R, Akbar S. A Case of Organo-Axial Gastric Volvulus Following Laparoscopic Fundoplication: a Case Report. Indian J Surg 2017; 79:357-359. [PMID: 28827913 DOI: 10.1007/s12262-016-1584-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 12/29/2016] [Indexed: 11/29/2022] Open
Abstract
Organo-axial gastric volvulus is a rare postoperative complication of stomach surgeries. A case is presented in which a 43-year-old patient developed acute gastric volvulus 14 months after a laparoscopic fundoplication, diagnosed by preoperative CT scan, and treated by reduction of the volvulus, closing the gap in the pars flaccida, and a sham gastro-jejunostomy, all done laparoscopically. This is being published to highlight one of the rare complications of gastric surgery, which can be treated successfully with the laparoscope.
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Affiliation(s)
- J S Rajkumar
- Lifeline Institute of Minimal Access Surgery, No. 47/3, New Avadi Road, Kilpauk, Chennai, 600 010 India
| | - G Venkatesan
- Lifeline Institute of Minimal Access Surgery, No. 47/3, New Avadi Road, Kilpauk, Chennai, 600 010 India
| | - Anirudh Rajkumar
- Lifeline Institute of Minimal Access Surgery, No. 47/3, New Avadi Road, Kilpauk, Chennai, 600 010 India
| | - R Prabhakaran
- Lifeline Institute of Minimal Access Surgery, No. 47/3, New Avadi Road, Kilpauk, Chennai, 600 010 India
| | - S Akbar
- Lifeline Institute of Minimal Access Surgery, No. 47/3, New Avadi Road, Kilpauk, Chennai, 600 010 India
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Ishtiaq S, Akram M, Kamran SH, Hanif U, Afridi MSK, Sajid-ur-Rehman, Afzal A, Asif A, Younus M, Akbar S. Acute and sub-acute toxicity study of a Pakistani polyherbal formulation. BMC Complement Altern Med 2017; 17:387. [PMID: 28778156 PMCID: PMC5545041 DOI: 10.1186/s12906-017-1889-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 07/23/2017] [Indexed: 12/29/2022]
Abstract
Background Herbology is the prevailing system among the nationally-accepted alternative or complementary systems of medicine. The system is due to its general and patient-oriented methodology, is widely used in the general population exposing them to the risk of the side effects of the herbal medicines. Method The aim of study was to assess the acute and sub-acute toxicity of the polyherbal formulation Hab-e-Kabad Noshadri tablets. In the acute arm of the study, a single dose of 2000 mg/kg was administered to Swiss Albino mice which were observed for physical symptoms and behavioral changes for 72 h. In sub-acute toxicity study repeated doses of the polyherbal preparation was administered to Wistar rats of both genders, separately. The animals received three doses of polyherbal product (50 mg/kg/day, 100 mg/kg/day and 200 mg/kg/day) for a period of 28 days. On 28th day of experiment, blood sampling of animals was done for hematological and biochemical analysis i.e. liver and renal function parameters, lipid profile and then sacrificed for histopathological examination of liver and kidney. Result There was no morbidity and mortality noticed with single dose administration in acute toxicity study in mice. In sub-acute toxicity study, morphological changes with some damage in liver and kidney tissues of male and female animals were recorded at dose of 100 mg/kg/day and 200 mg/kg/day. Conclusions It was found that prolonged use at higher dose i.e. 200 mg/kg/day of this polyherbal formulation should be avoided and practitioners should cautiously prescribe this formulation in patients with hepatic and renal impairment. Electronic supplementary material The online version of this article (doi:10.1186/s12906-017-1889-7) contains supplementary material, which is available to authorized users.
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Akbar S, Subhan F, Karim N, Aman U, Ullah S, Shahid M, Ahmad N, Fawad K, Sewell RD. Characterization of 6-methoxyflavanone as a novel anxiolytic agent: A behavioral and pharmacokinetic approach. Eur J Pharmacol 2017; 801:19-27. [DOI: 10.1016/j.ejphar.2017.02.047] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 02/18/2017] [Accepted: 02/27/2017] [Indexed: 12/01/2022]
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Shahid M, Subhan F, Ahmad N, Ali G, Akbar S, Fawad K, Sewell R. Topical gabapentin gel alleviates allodynia and hyperalgesia in the chronic sciatic nerve constriction injury neuropathic pain model. Eur J Pain 2016; 21:668-680. [DOI: 10.1002/ejp.971] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2016] [Indexed: 12/29/2022]
Affiliation(s)
- M. Shahid
- Department of Pharmacy; Sarhad University of Science and Information Technology; Peshawar Pakistan
- Department of Pharmacy; University of Peshawar; Pakistan
| | - F. Subhan
- Department of Pharmacy; University of Peshawar; Pakistan
| | - N. Ahmad
- Department of Pharmacy; University of Peshawar; Pakistan
| | - G. Ali
- Department of Pharmacy; University of Peshawar; Pakistan
| | - S. Akbar
- Department of Pharmacy; University of Peshawar; Pakistan
| | - K. Fawad
- Department of Pharmacy; University of Peshawar; Pakistan
| | - R.D.E. Sewell
- Cardiff School of Pharmacy and Pharmaceutical Sciences; Cardiff University; UK
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Akbar S, Subhan F, Karim N, Shahid M, Ahmad N, Ali G, Mahmood W, Fawad K. 6-Methoxyflavanone attenuates mechanical allodynia and vulvodynia in the streptozotocin-induced diabetic neuropathic pain. Biomed Pharmacother 2016; 84:962-971. [PMID: 27764759 DOI: 10.1016/j.biopha.2016.10.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 10/03/2016] [Accepted: 10/06/2016] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Diabetic neuropathy is the most prevalent, persistent and debilitating complication of diabetes mellitus often coupled with vulvodynia that may present as an isolated symptom or as a part of constellation of other neuropathic abnormalities. OBJECTIVE Flavonoids have selective affinity for GABA receptors and 6-methoxyflavanone (6-MeOF) is a positive allosteric modulator of GABA responses at human recombinant GABAA receptors. GABAergic and opioidergic system inhibition have been shown to facilitate neuropathic pain. METHODS 6-MeOF was evaluated for analgesic effect in the hot plate test and streptozotocin-induced diabetic neuropathic pain in female rats using von Frey hairs. The possible involvement of opioidergic and GABAergic mechanisms was investigated using naloxone and pentylenetetrazole (PTZ) antagonists, respectively. The biodistribution of 6-MeOF in plasma and CNS was examined using a validated HPLC/UV analytical method. The binding affinity of 6-MeOF with opioid and GABA receptors was studied using molecular docking simulation approach. RESULTS 6-MeOF (10 and 30mg/kg) attenuated the acute phasic thermal nociception in the hot plate test while in the case of streptozotocin-induced diabetic neuropathy model, 6-MeOF (10 and 30mg/kg) produced static/dynamic anti-allodynic (increased paw withdrawal threshold and latency) as well as static/dynamic anti-vulvodynic effects (increased flinching response threshold and latency), when compared to the vehicle and standard gabapentin (75mg/kg). In silico studies depicted the preference of 6-MeOF for the delta- and kappa-opioid and GABAA receptors. Moreover, the pharmacokinetic profile revealed a quick appearance of 6-MeOF in the systemic circulation and brain areas with maximum concentration observed after 30min in the amygdala, brain stem and cerebral cortex. CONCLUSION 6-MeOF readily crosses the blood brain barrier and may be effective in attenuating the diabetes-induced allodynia as well as vulvodynia, probably through interactions with the GABAergic and opioidergic systems.
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Affiliation(s)
- Shehla Akbar
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan.
| | - Fazal Subhan
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan.
| | - Nasiara Karim
- Department of Pharmacy, University of Malakand, Chakdara, Pakistan.
| | - Muhammad Shahid
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan.
| | - Nisar Ahmad
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan.
| | - Gowhar Ali
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan.
| | - Wajahat Mahmood
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad, Pakistan.
| | - Khwaja Fawad
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan.
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Akbar S, Khimani R, Naz H, Sohani K. ISQUA16-3152COORDINATING CARE ACROSS THE CONTINUUM BY MANAGING POST DISCHARGE TRANSITIONS AT HOME. Int J Qual Health Care 2016. [DOI: 10.1093/intqhc/mzw104.36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Philippsen T, Orini M, Martin C, Volkova E, Ormerod J, Sohaib S, Elamin N, Blake S, Sawhney V, Ahmad S, Waring O, Bowers R, Raiman L, Hazelwood T, Mills R, Corrado C, Honarbakhsh S, Von Maydell A, Norrish G, Chubb H, Chubb H, Chubb H, Toledano M, Ruiz A, van Zalen J, Foley P, Pearman C, Rehal O, Foley P, Wong L, Foley P, Pearman C, Brahmbhatt D, Khan H, Wardley J, Akbar S, Christensen L, Hansen M, Brandes A, Tinker A, Munroe P, Lambiase P, Honarbakhsh S, McLean A, Lambiase P, Schilling R, Lane J, Chow A, Earley M, Hunter R, Khan F, Lambiase P, Schilling R, Sporton S, Dhinoja M, Camm C, Xavier R, de Sousa M, Betts T, Shun-Shin M, Wright I, Lim E, Lim P, Koawing M, Lefroy D, Linton N, Davies D, Peters N, Kanagaratnam P, Francis D, Whinnett Z, Khan M, Bowes R, Sahu J, Sheridan P, Rogers D, Kyriacou A, Kelland N, Lewis N, Lee J, Segall E, Diab I, Breitenstein A, Ullah W, Sporton S, Earley M, Finlay M, Dhinoja M, Schilling R, Hunter R, Ahmed M, Petkar S, Davidson N, Stout M, Pearce KP, Leo M, Ginks M, Rajappan K, Bashir Y, Balasubramaniam R, Sopher S, Betts T, Paisey J, Cheong J, Roy D, Adhya S, Williams S, O'Neill M, Niederer S, Providencia R, Srinivasan N, Ahsan S, Lowe M, Segal O, Hunter R, Finlay M, Earley M, Schilling R, Lambiase P, Stella S, Cantwell C, Chowdhury R, Kim S, Linton N, Whinnett Z, Koa-Wing M, Lefroy D, Davies DW, Kanagaratnam P, Lim PB, Qureshi N, Peters N, Cantarutti N, Limongelli G, Elliott P, Kaski J, Williams S, Lal K, Harrison J, Whitaker J, Kiedrowicz R, Wright M, O'Neill M, Harrison J, Whitaker J, Williams S, Wright M, Schaeffter T, Razavi R, O'Neill M, Karim R, Williams S, Harrison J, Whitaker J, Wright M, Schaeffter T, Razavi R, O'Neill M, Montanes M, Ella Field E, Walsh H, Callaghan N, Till J, Mangat J, Lowe M, Kaski J, Ruiz Duthil A, Li A, Saba M, Patel N, Beale L, Brickley G, Lloyd G, French A, Khavandi A, McCrea W, Barnes E, Chandrasekaran B, Parry J, Garth L, Chapman J, Todd D, Hobbs J, Modi S, Waktare J, Hall M, Gupta D, Snowdon R, Papageorgiou N, Providência R, Falconer D, Sewart E, Ahsan S, Segal O, Ezzat V, Rowland E, Lowe M, Lambiase P, Chow A, Swift M, Charlton P, James J, Colling A, Barnes E, Starling L, Kontogeorgis A, Roses-Noguer F, Wong T, Jarman J, Clague J, Till J, Colling A, James J, Hawkins M, Burnell S, Chandrasekaran B, Coulson J, Smith L, Choudhury M, Oguguo E, Boyett M, Morris G, Flinn W, Chari A, Belham M, Pugh P, Somarakis K, Parasa R, Allata A, Hashim H, Mathew T, Kayasundar S, Venables P, Quinn J, Ivanova J, Brown S, Oliver R, Lyons M, Chuen M, Walsh J, Robinson T, Staniforth A, Ahsan A, Jamil-Copley S. POSTERS (2)96CONTINUOUS VERSUS INTERMITTENT MONITORING FOR DETECTION OF SUBCLINICAL ATRIAL FIBRILLATION IN HIGH-RISK PATIENTS97HIGH DAY-TO-DAY INTRA-INDIVIDUAL REPRODUCIBILITY OF THE HEART RATE RESPONSE TO EXERCISE IN THE UK BIOBANK DATA98USE OF NOVEL GLOBAL ULTRASOUND IMAGING AND CONTINUEOUS DIPOLE DENSITY MAPPING TO GUIDE ABLATION IN MACRO-REENTRANT TACHYCARDIAS99ANTICOAGULATION AND THE RISK OF COMPLICATIONS IN PATIENTS UNDERGOING VT AND PVC ABLATION100NON-SUSTAINED VENTRICULAR TACHYCARDIA FREQUENTLY PRECEDES CARDIAC ARREST IN PATIENTS WITH BRUGADA SYNDROME101USING HIGH PRECISION HAEMODYNAMIC MEASUREMENTS TO ASSESS DIFFERENCES IN AV OPTIMUM BETWEEN DIFFERENT LEFT VENTRICULAR LEAD POSITIONS IN BIVENTRICULAR PACING102CAN WE PREDICT MEDIUM TERM MORTALITY FROM TRANSVENOUS LEAD EXTRACTION PRE-OPERATIVELY?103PREVENTION OF UNECESSARY ADMISSIONS IN ATRIAL FIBRILLATION104EPICARDIAL CATHETER ABLATION FOR VENTRICULAR TACHYCARDIA ON UNINTERRUPTED WARFARIN: A SAFE APPROACH?105HOW WELL DOES THE NATIONAL INSTITUTE OF CLINICAL EXCELLENCE (NICE) GUIDENCE ON TRANSIENT LOSS OF CONSCIOUSNESS (T-LoC) WORK IN A REAL WORLD? AN AUDIT OF THE SECOND STAGE SPECIALIST CARDIOVASCULAT ASSESSMENT AND DIAGNOSIS106DETECTION OF ATRIAL FIBRILLATION IN COMMUNITY LOCATIONS USING NOVEL TECHNOLOGY'S AS A METHOD OF STROKE PREVENTION IN THE OVER 65'S ASYMPTOMATIC POPULATION - SHOULD IT BECOME STANDARD PRACTISE?107HIGH-DOSE ISOPRENALINE INFUSION AS A METHOD OF INDUCTION OF ATRIAL FIBRILLATION: A MULTI-CENTRE, PLACEBO CONTROLLED CLINICAL TRIAL IN PATIENTS WITH VARYING ARRHYTHMIC RISK108PACEMAKER COMPLICATIONS IN A DISTRICT GENERAL HOSPITAL109CARDIAC RESYNCHRONISATION THERAPY: A TRADE-OFF BETWEEN LEFT VENTRICULAR VOLTAGE OUTPUT AND EJECTION FRACTION?110RAPID DETERIORATION IN LEFT VENTRICULAR FUNCTION AND ACUTE HEART FAILURE AFTER DUAL CHAMBER PACEMAKER INSERTION WITH RESOLUTION FOLLOWING BIVENTRICULAR PACING111LOCALLY PERSONALISED ATRIAL ELECTROPHYSIOLOGY MODELS FROM PENTARAY CATHETER MEASUREMENTS112EVALUATION OF SUBCUTANEOUS ICD VERSUS TRANSVENOUS ICD- A PROPENSITY MATCHED COST-EFFICACY ANALYSIS OF COMPLICATIONS & OUTCOMES113LOCALISING DRIVERS USING ORGANISATIONAL INDEX IN CONTACT MAPPING OF HUMAN PERSISTENT ATRIAL FIBRILLATION114RISK FACTORS FOR SUDDEN CARDIAC DEATH IN PAEDIATRIC HYPERTROPHIC CARDIOMYOPATHY: A SYSTEMATIC REVIEW AND META-ANALYSIS115EFFECT OF CATHETER STABILITY AND CONTACT FORCE ON VISITAG DENSITY DURING PULMONARY VEIN ISOLATION116HEPATIC CAPSULE ENHANCEMENT IS COMMONLY SEEN DURING MR-GUIDED ABLATION OF ATRIAL FLUTTER: A MECHANISTIC INSIGHT INTO PROCEDURAL PAIN117DOES HIGHER CONTACT FORCE IMPAIR LESION FORMATION AT THE CAVOTRICUSPID ISTHMUS? INSIGHTS FROM MR-GUIDED ABLATION OF ATRIAL FLUTTER118CLINICAL CHARACTERISATION OF A MALIGNANT SCN5A MUTATION IN CHILDHOOD119RADIOFREQUENCY ASSOCIATED VENTRICULAR FIBRILLATION120CONTRACTILE RESERVE EXPRESSED AS SYSTOLIC VELOCITY DOES NOT PREDICT RESPONSE TO CRT121DAY-CASE DEVICES - A RETROSPECTIVE STUDY USING PATIENT CODING DATA122PATIENTS UNDERGOING SVT ABLATION HAVE A HIGH INCIDENCE OF SECONDARY ARRHYTHMIA ON FOLLOW UP: IMPLICATIONS FOR PRE-PROCEDURE COUNSELLING123PROGNOSTIC ROLE OF HAEMOGLOBINN AND RED BLOOD CELL DITRIBUTION WIDTH IN PATIENTS WITH HEART FAILURE UNDERGOING CARDIAC RESYNCHRONIZATION THERAPY124REMOTE MONITORING AND FOLLOW UP DEVICES125A 20-YEAR, SINGLE-CENTRE EXPERIENCE OF IMPLANTABLE CARDIOVERTER DEFIBRILLATORS (ICD) IN CHILDREN: TIME TO CONSIDER THE SUBCUTANEOUS ICD?126EXPERIENCE OF MAGNETIC REASONANCE IMAGING (MEI) IN PATIENTS WITH MRI CONDITIONAL DEVICES127THE SINUS BRADYCARDIA SEEN IN ATHLETES IS NOT CAUSED BY ENHANCED VAGAL TONE BUT INSTEAD REFLECTS INTRINSIC CHANGES IN THE SINUS NODE REVEALED BY
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(F) BLOCKADE128SUCCESSFUL DAY-CASE PACEMAKER IMPLANTATION - AN EIGHT YEAR SINGLE-CENTRE EXPERIENCE129LEFT VENTRICULAR INDEX MASS ASSOCIATED WITH ESC HYPERTROPHIC CARDIOMYOPATHY RISK SCORE IN PATIENTS WITH ICDs: A TERTIARY CENTRE HCM REGISTRY130A DGH EXPERIENCE OF DAY-CASE CARDIAC PACEMAKER IMPLANTATION131IS PRE-PROCEDURAL FASTING A NECESSITY FOR SAFE PACEMAKER IMPLANTATION? Europace 2016. [DOI: 10.1093/europace/euw274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Rajkumar JS, Ganesh D, Anirudh JR, Akbar S, Joshi N. First Branchial Arch Fistula: A Rarity and a Surgical Challenge. J Clin Diagn Res 2016; 10:PD19-21. [PMID: 27504352 DOI: 10.7860/jcdr/2016/16730.8019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 03/16/2016] [Indexed: 11/24/2022]
Abstract
Although 2(nd) Branchial arch fistulae (from incomplete closure of Cervical sinus of His) are well known, 1(st) arch fistulae are much rarer (<10%) and are usually not tackled comprehensively. We present a case of a rare first branchial arch fistula of the type II Arnot classification, which presented with two external openings of more than 20 years duration. Patient had a successful resection of all the concerned fistulous tract. Review of literature and the surgical challenges of the procedure are presented herewith.
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Affiliation(s)
- J S Rajkumar
- Chairman & Advanced Laparoscopic Surgeon, Department of Minimal Access Surgery, LifeLine RIGID Hospitals , Kilpauk, Chennai, India
| | - Deepa Ganesh
- Consultant Laparoscopic Surgeon, Department of Minimal Access Surgery, LifeLine RIGID Hospitals , Kilpauk, Chennai, India
| | - J R Anirudh
- Assistant Surgeon, Department of Minimal Access Surgery, LifeLine RIGID Hospitals , Kilpauk, Chennai, India
| | - S Akbar
- Assistant Surgeon, Department of Minimal Access Surgery, LifeLine RIGID Hospitals , Kilpauk, Chennai, India
| | - Niraj Joshi
- Consultant ENT Surgeon, Department of ENT, LifeLine RIGID Hospitals , Kilpauk, Chennai, India
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Akbar S, Anwar A, Kanwal Q. Electrochemical determination of folic acid: A short review. Anal Biochem 2016; 510:98-105. [PMID: 27449133 DOI: 10.1016/j.ab.2016.07.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 07/02/2016] [Accepted: 07/04/2016] [Indexed: 10/21/2022]
Abstract
Folic acid (FA) is an electroactive compound of biological origin. It helps our body to produce and maintain healthy cells. It can significantly reduce the occurrence of neural tube defects and also prevents change in DNA structure. FA deficiency can lead to various health risks. Therefore, a sensitive, specific, and reproducible way of FA detection is essential. A number of analytical methods are in practice for the quantification of FA. However, electroanalytical methods are attracting much attention because of their advantage over conventional methods, as they are fast, simple, sensitive, and cost effective. Moreover, modification of electrodes offers control over size and morphology which allows miniaturization for applicability in portable electrochemical devices.
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Affiliation(s)
- S Akbar
- Department of Basic Sciences and Humanities, University of Engineering and Technology Lahore, KSK Campus, Pakistan.
| | - A Anwar
- Department of Basic Sciences and Humanities, University of Engineering and Technology Lahore, KSK Campus, Pakistan
| | - Q Kanwal
- Department of Basic Sciences and Humanities, University of Engineering and Technology Lahore, KSK Campus, Pakistan
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Akbar N, Akbar S, Kubbara A. ID: 67: HENOCH-SCHONLEIN PRPURA WITH A NEGATIVE SKIN BIOPSY. J Investig Med 2016. [DOI: 10.1136/jim-2016-000120.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Henoch-Schonlein purpura (HSP) is an autoimmune condition also referred to as anaphylactoid purpura. It is a self-limited systemic, IgA-mediated small vasculitis. It is non-granulomatous, autoimmune complex, with multi-organ involvement, and most commonly in children. Its etiology is unclear but is associated with upper respiratory tract infections, drugs, foods, insect bites, vaccinations, tumors (non-small cell lung cancer, prostate cancer, and hematological malignancies), alpha-1-antitrypsin deficiency, and Familial Mediterranean Fever.Case StemWe present a 17 years old caucasian male with 3 weeks history of itchy erythematous, palpable pruritic rash which progressed proximally from both feet to thighs and upper extremities. He went to an outlying facility and was given steroids for a few days. Symptoms subsided temporary. Later the patient developed peri-umbilical abdominal pain which was colicky in nature, 8/10 in intensity, associated with vomiting, bloody diarrhea, joint pain and fever. Review of systems was unremarkable otherwise. Abdominal examination showed mild tenderness in the peri-umbilical area, non-blanching palpable purpuric rash involving both upper and lower extremities.Laboratory tests showed leukocytosis, high CRP and ESR.Normal Hb, Hct, BUN, Serum Creatinine, Urinalysis, C3 and C4.Anti-HAV IgM: Negative; HbsAg: Negative; Anti-HBc IgG Negative.Colonoscopy showed pancolitis. Abdominal ultrasonography detected increased bowel wall thickness, skin biopsy was not specific because it was taken after 24 hrs of once of rash.The patient was diagnosed with HSP as per the American College of Rheumatology and European League Against Rheumatism (EuLAR) as well as Pediatric Rheumatology Society (PReS) criteria.He was treated with intravenous fluids and was abstained from food and liquids. He was started on oral prednisone. He recovered well and was discharged with a follow up appointment.ConclusionAlthough HSP patients mostly range from 4–7 years old it can still presents in adolescent age group. Non-thrombocytopenic palpable purpura with multi-organ involvement (gastrointestinal, skin and joints) should make one consider the diagnosis. skin biopsy should be taken less than 24 hrs from the presentation because in more chronic lesions, vessel damage leads to nonspecific leakage of all isotypes of immunoglobulin.Abstract ID: 67 Figure 1
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Aman U, Subhan F, Shahid M, Akbar S, Ahmad N, Ali G, Fawad K, Sewell RDE. Passiflora incarnata attenuation of neuropathic allodynia and vulvodynia apropos GABA-ergic and opioidergic antinociceptive and behavioural mechanisms. Altern Ther Health Med 2016; 16:77. [PMID: 26912265 PMCID: PMC4765057 DOI: 10.1186/s12906-016-1048-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Accepted: 02/11/2016] [Indexed: 12/20/2022]
Abstract
Background Passiflora incarnata is widely used as an anxiolytic and sedative due to its putative GABAergic properties. Passiflora incarnata L. methanolic extract (PI-ME) was evaluated in an animal model of streptozotocin-induced diabetic neuropathic allodynia and vulvodynia in rats along with antinociceptive, anxiolytic and sedative activities in mice in order to examine possible underlying mechanisms. Methods PI-ME was tested preliminary for qualitative phytochemical analysis and then quantitatively by proximate and GC-MS analysis. The antinociceptive property was evaluated using the abdominal constriction assay and hot plate test. The anxiolytic activity was performed in a stair case model and sedative activity in an open field test. The antagonistic activities were evaluated using naloxone and/or pentylenetetrazole (PTZ). PI-ME was evaluated for prospective anti-allodynic and anti-vulvodynic properties in a rat model of streptozotocin induced neuropathic pain using the static and dynamic testing paradigms of mechanical allodynia and vulvodynia. Results GC-MS analysis revealed that PI-ME contained predominant quantities of oleamide (9-octadecenamide), palmitic acid (hexadecanoic acid) and 3-hydroxy-dodecanoic acid, among other active constituents. In the abdominal constriction assay and hot plate test, PI-ME produced dose dependant, naloxone and pentylenetetrazole reversible antinociception suggesting an involvement of opioidergic and GABAergic mechanisms. In the stair case test, PI-ME at 200 mg/kg increased the number of steps climbed while at 600 mg/kg a significant decrease was observed. The rearing incidence was diminished by PI-ME at all tested doses and in the open field test, PI-ME decreased locomotor activity to an extent that was analagous to diazepam. The effects of PI-ME were antagonized by PTZ in both the staircase and open field tests implicating GABAergic mechanisms in its anxiolytic and sedative activities. In the streptozotocin-induced neuropathic nociceptive model, PI-ME (200 and 300 mg/kg) exhibited static and dynamic anti-allodynic effects exemplified by an increase in paw withdrawal threshold and paw withdrawal latency. PI-ME relieved only the dynamic component of vulvodynia by increasing flinching response latency. Conclusions These findings suggest that Passiflora incarnata might be useful for treating neuropathic pain. The antinociceptive and behavioural findings inferring that its activity may stem from underlying opioidergic and GABAergic mechanisms though a potential oleamide-sourced cannabimimetic involvement is also discussed. Electronic supplementary material The online version of this article (doi:10.1186/s12906-016-1048-6) contains supplementary material, which is available to authorized users.
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Jordan LB, Akbar S, Purdie CA, Thompson AM, McKenna SJ. Abstract P5-07-15: Breast cancer estrogen receptor scoring in tissue microarrays: Specialist breast pathologist versus automation. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p5-07-15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Rationale: Tissue microarrays (TMAs) have become a valuable resource for biomarker expression in translational research. Immunohistochemical (IHC) assessment of TMAs is the principal method for analyzing protein expression in large numbers of patient samples efficient with conservation of tissue. However, manual IHC assessment of TMAs remains a challenging and laborious task. With advances in image analysis, computer generated analyses of TMAs have the potential to lessen the burden of expert pathologist review. Computerized ER scoring relies on tumor localization.
Aim: The objective of this study was to compare the effectiveness of a locally developed automated invasive tumor location system with the skills of specialist breast pathologists.
Methods: In this study, tumor localization for estrogen receptor (ER) scoring was evaluated comparing computer- generated segmentation masks with those of two specialist breast pathologists. Automated tumor localization was achieved using a novel image analysis algorithm, which labeled compact groups of pixels called superpixels. Machine learning techniques were adopted to model color, shape and textural properties of superpixels in a rotation invariant manner, suitable for histopathology images. The resulting automatically and manually-obtained segmentation masks were used to obtain IHC scores for thirty-two ER stained invasive breast cancer TMA samples using FDA-approved IHC scoring software.
Results: Pixel-level comparisons showed lower agreement between automated and manual segmentation masks (κ = 0.84) than between pathologists' masks (κ = 0.91). However, this had little impact on computed IHC scores (Allred method; κ = 0.91, Quickscore method; κ = 0.92).
Conclusion: The automated system provides sufficiently consistent measurements for standardized IHC analysis of nuclear staining in TMAs from large clinical trials.
Citation Format: Jordan LB, Akbar S, Purdie CA, Thompson AM, McKenna SJ. Breast cancer estrogen receptor scoring in tissue microarrays: Specialist breast pathologist versus automation. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P5-07-15.
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Affiliation(s)
- LB Jordan
- NHS Tayside/University of Dundee, Dundee, United Kingdom; School of Computing, University of Dundee, Dundee, United Kingdom; MD Anderson Cancer Center, Houston, TX
| | - S Akbar
- NHS Tayside/University of Dundee, Dundee, United Kingdom; School of Computing, University of Dundee, Dundee, United Kingdom; MD Anderson Cancer Center, Houston, TX
| | - CA Purdie
- NHS Tayside/University of Dundee, Dundee, United Kingdom; School of Computing, University of Dundee, Dundee, United Kingdom; MD Anderson Cancer Center, Houston, TX
| | - AM Thompson
- NHS Tayside/University of Dundee, Dundee, United Kingdom; School of Computing, University of Dundee, Dundee, United Kingdom; MD Anderson Cancer Center, Houston, TX
| | - SJ McKenna
- NHS Tayside/University of Dundee, Dundee, United Kingdom; School of Computing, University of Dundee, Dundee, United Kingdom; MD Anderson Cancer Center, Houston, TX
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Rajkumar JS, Ganesh D, Anirudh JR, Akbar S, Kishore CM. Laparoscopic Excision of Retroperitoneal Schwannoma. J Clin Diagn Res 2015; 9:PD05-7. [PMID: 26676094 DOI: 10.7860/jcdr/2015/13792.6762] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 09/13/2015] [Indexed: 11/24/2022]
Abstract
Schwannomas are tumours that arise from the myelin sheath of the nerves. A very unusual location for schwannoma is the retro peritoneal areas (less than 2%). We present herewith a patient who had a 4x5cm Schwannoma arising from the nerve root of L2 on the right side, which presented as a lump in the psoas major muscle. This was treated by total laparoscopic excision after splitting open the psoas major. In the published english medical literature we could find only 16 cases of laparoscopic resection of retroperitoneal schwannoma and we believe ours to be the first case that was done through a psoas muscle split technique. Technical and histopathological details are discussed elaborately in this article.
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Affiliation(s)
- J S Rajkumar
- Chairman & Advanced Laparoscopic Surgeon, Life Line RIGID Hospitals Pvt. Ltd. , Kilpauk, Chennai, India
| | - Deepa Ganesh
- Consultant Laparoscopic Surgeon, Life Line RIGID Hospitals Pvt. Ltd. , Kilpauk, Chennai, India
| | - J R Anirudh
- Assistant Surgeon, Life Line RIGID Hospitals Pvt. Ltd. , Kilpauk, Chennai, India
| | - S Akbar
- Assistant Surgeon, Life Line RIGID Hospitals Pvt. Ltd. , Kilpauk, Chennai, India
| | - C M Kishore
- Consultant Laparoscopic Surgeon, Life Line RIGID Hospitals Pvt. Ltd. , Kilpauk, Chennai, India
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Akbar S, Parasa R, Alexander J, Lee E, Kamaruddin H, Mathew T. 1 Comparison of right ventricular (RV) size and function by two dimensional echocardiography (2DTTE) and cardiac magnetic resonance imaging (CMR). Heart 2015. [DOI: 10.1136/heartjnl-2015-307845.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
This study was conducted on female patients with different gynecological problems attending the gynecology out-patient departments of two tertiary care hospitals in Peshawar city of Khyber Pakhtunkhwa, Pakistan between August 2012 and October 2013. The 200 patients had an age range of 21-65 years. Smears were taken with cervical brushes and preserved in preservative medium and processed for manual liquid based cytology (MLBC) for Pap staining. Out of 200 collected samples, 30 samples were found inadequate on cytology. Of the remaining 170 samples, 164 (96.47%) were normal, 5 (2.94%) were of atypical squamous cells of unknown significance (ASCUS) and 1 (0.6%) was of high grade squamous intraepithelial lesion (HSIL). On PCR all the samples were positive for beta globin gene fragment including those reported inadequate on cytology. Out of the 5 ASCUS samples, 2 samples were positive for HPV, one each for HPV 16 and HPV 18, and the rest of the 3 samples were negative for HPV DNA. The 1 sample of HSIL was positive for HPV 16 on PCR. Out of 164 normal samples on cytology, only 1 sample was HPV 16 positive. So overall, 4 (2%) out of 200 samples were positive for HPV DNA, where 3 were HPV 16 (1.5%), and 1 was HPV 18 (0.5%) positive, and thus the ratio of infection with of HPV 16 to HPV 18 was 3:1 in the general population. In conclusion, PCR based HPV detection is a more sensitive method for screening of HPV infection than cytology as sample inadequacy does not affect the results. However, it can be combined with cytology methods in a HPV positive female to achieve the maximum results.
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Affiliation(s)
- Shehla Akbar
- Department of Histopathology, Institute of Basic Medical Sciences, Khyber Medical University, Khyber Pakhtunkhwa, Pakistan E-mail :
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Akbar S, Hanif U, Ali J, Ishtiaq S. Pharmacognostic studies of stem, roots and leaves of Malva parviflora L. Asian Pac J Trop Biomed 2014; 4:410-5. [PMID: 25182728 DOI: 10.12980/apjtb.4.2014c1107] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 03/12/2014] [Indexed: 10/25/2022] Open
Abstract
OBJECTIVE To establish quality control parameters of a locally occurring medicinal plant, Malva parviflora which is utilized as folk medicine in Sialkot area in Pakistan. METHODS In pharmacognostic studies different types of evaluations were carried out that focus on microscopic, macroscopic, fluorescence analysis and organoleptic evaluations. RESULTS The distinguishing characters of stem were the presence of parenchyma, cork cells, irregular shape calcium oxalate crystals, simple and compound starch granules and fusiform fibers with pits. Root microscopic characters were presence of simple and spherical starch granules with rounded or slit hilum, groups of lignified xylem fibers, reticulate vessels, and sieve tissues. Leaves microscopy indicated the presence of paracytic stomata, lignified fibers having pits, spiral and annular vessels, numerous sclereids while in fruit microscopy epicarp, thin walled cells endocarp, thin walled parenchyma and collenchyma of mesocarp and abundant thick walled endospermic cells containing aleurone grains and micro rosette crystals. Macroscopic study of leaves showed, 5-7 lobed reniform-shape, glabrous-surface, reticulate-venation in the leaves. Macroscopic features of roots showed type of root-taproot, surface-glabrous and stem was 1-10 dm tall simple to branched and may be prostrate or ascending. Similarly fruit was of schizocarp type. CONCLUSIONS This study provides the scientific data for the proper identification and establishment of standards for the use of Malva parviflora.
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Affiliation(s)
- Shehla Akbar
- University College of Pharmacy, University of the Punjab, Lahore-54000, Pakistan
| | - Uzma Hanif
- Department of Botany, Government College University Lahore-54000, Pakistan
| | - Jaffar Ali
- Department of Botany, University of the Punjab, Lahore-54000, Pakistan
| | - Saiqa Ishtiaq
- University College of Pharmacy, University of the Punjab, Lahore-54000, Pakistan
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Ishtiaq S, Ahmad M, Hanif U, Akbar S, Mehjabeen, Kamran SH. Phytochemical and in vitro antioxidant evaluation of different fractions of Amaranthus graecizans subsp. silvestris (Vill.) Brenan. ASIAN PAC J TROP MED 2014; 7S1:S342-7. [DOI: 10.1016/s1995-7645(14)60256-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 07/19/2014] [Accepted: 08/15/2014] [Indexed: 10/24/2022] Open
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Kaur MP, Guggenheim EJ, Pulisciano C, Akbar S, Kershaw RM, Hodges NJ. Cellular accumulation of Cys326-OGG1 protein complexes under conditions of oxidative stress. Biochem Biophys Res Commun 2014; 447:12-8. [PMID: 24680828 PMCID: PMC4005915 DOI: 10.1016/j.bbrc.2014.03.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 03/11/2014] [Indexed: 01/03/2023]
Abstract
Novel use of BiFC to study a component of base excision repair pathway. First time that OGG1 complex formation has been observed inside of cells. Complexes restricted to the Cys326 variant and conditions of oxidative stress. Evidence supports role of OGG1 dimer formation in reduced repair capacity.
The common Ser326Cys polymorphism in the base excision repair protein 8-oxoguanine glycosylase 1 is associated with a reduced capacity to repair oxidative DNA damage particularly under conditions of intracellular oxidative stress and there is evidence that Cys326-OGG1 homozygous individuals have increased susceptibility to specific cancer types. Indirect biochemical studies have shown that reduced repair capacity is related to OGG1 redox modification and also possibly OGG1 dimer formation. In the current study we have used bimolecular fluorescence complementation to study for the first time a component of the base excision repair pathway and applied it to visualise accumulation of Cys326-OGG1 protein complexes in the native cellular environment. Fluorescence was observed both within and around the cell nucleus, was shown to be specific to cells expressing Cys326-OGG1 and only occurred in cells under conditions of cellular oxidative stress following depletion of intracellular glutathione levels by treatment with buthionine sulphoximine. Furthermore, OGG1 complex formation was inhibited by incubation of cells with the thiol reducing agents β-mercaptoethanol and dithiothreitol and the antioxidant dimethylsulfoxide indicating a causative role for oxidative stress in the formation of OGG1 cellular complexes. In conclusion, this study has provided for the first time evidence of redox sensitive Cys326-OGG1 protein accumulation in cells under conditions of intracellular oxidative stress that may be related to the previously reported reduced repair capacity of Cys326-OGG1 specifically under conditions of oxidative stress.
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Affiliation(s)
- M P Kaur
- School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - E J Guggenheim
- School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - C Pulisciano
- School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - S Akbar
- School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - R M Kershaw
- School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - N J Hodges
- School of Biosciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
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Winn JN, Akbar S, Theivanayagam S, Lim RG, Odum BR, Bechtold ML, Diaz-Arias A, Arif M. Disseminated histoplasmosis presenting as colonic pseudotumor. Endoscopy 2014; 45 Suppl 2 UCTN:E155-6. [PMID: 23716109 DOI: 10.1055/s-0032-1326495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- J N Winn
- Division of Gastroenterology, University of Missouri School of Medicine, Columbia, Missouri 65212, USA
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Rasool R, Ganai BA, Akbar S, Kamili AN. Free radical scavenging potential of in vitro raised and greenhouse acclimatized plants of Artemisia amygdalina. Chin J Nat Med 2014; 11:377-84. [PMID: 23845546 DOI: 10.1016/s1875-5364(13)60055-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Indexed: 11/26/2022]
Abstract
AIM Artemisia amygdalina Decne. (Asteraceae) is a critically endangered and endemic herb of Kashmir Himalayan sub-alpine region and Pakistan. Scientific research throughout the world has evidence to support the tremendous medicinal utility of the genus Artemisia. The natural resources of medicinal plants are being reduced day by day. This study provides the alternative way for medicinal resource utilization and conservation of A. amygdalina. METHODS In vitro-raised plants and greenhouse acclimatized plants were obtained by culturing wild explants on Murashige and Skoog's medium. Plant extracts were obtained and subjected to different antioxidant assays: DPPH assay, riboflavin photo-oxidation assay, deoxy ribose assay, ferric thiocyanate assay, thiobarbituric acid assay, post mitochondrial supernatant assay and DNA damage on agarose gel. RESULTS In vitro grown plants, as well as those acclimatized in the greenhouse reveals antioxidant activity against hydroxyl, superoxide, and lipid peroxyl radicals. CONCLUSION This preliminary study revealed the free radical scavenging potential of tissue culture-raised plant extracts of A. amydalina.
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Affiliation(s)
- R Rasool
- Department of Biochemistry, University of Kashmir, Hazratbal, Srinagar 190006, Jammu and Kashmir, India.
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Affiliation(s)
- N. Ryan
- Department of Obstetrics and Gynaecology, Luton and Dunstable Foundation Trust, UK
| | | | - S. Akbar
- Department of Obstetrics and Gynaecology, Luton and Dunstable Foundation Trust, UK
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