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Ikram H, Tasneem S, Perveen S, Zakir R, Jabeen Haleem D. Neurochemical and behavioral effects of fluoxetine on midazolam induce dependence in an animal model of addiction. Pak J Pharm Sci 2021; 34:1749-1757. [PMID: 34803012] [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 we have monitored effects of repeated coadministration of fluoxetine with midazolam; a benzodiazepine (CNS depressant). It is the primary drug of choice for procedural sedation, preoperative sedation, and in emergency departments. Repeated administration of this drug is reported to have abuse potential and may cause this by increasing dopaminergic neurotransmission. Since an important role of serotonin is there in the pathophysiology of anxiety and addiction, administration of midazolam may involve altered 5-HT metabolism as well. Present study was designed to monitor effects of repeated administration of fluoxetine with midazolam. Effects of fluoxetine and midazolam coadministration were monitored on motor activities in familiar and novel environments, hot plate test, forced swim test, conditioned place preference test and levels of dopamine, 5-HT and their metabolites. Both midazolam (2.5mg/kg) and fluoxetine (1mg/kg) were administered orally for 12 days. Conditioned place preference test was performed on day 13. Rats were decapitated and whole brain samples were collected and stored at -70°C until neurochemical analysis by HPLC-EC. Findings from the present study show attenuation of midazolam-induced reinforcement upon repeated co-administration of fluoxetine. These could be implicated to increased therapeutic utility of midazolam and related benzodiazepines.
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Affiliation(s)
- Huma Ikram
- Neurochemistry and Biochemical Neuropharmacology Research Unit, Department of Biochemistry, University of Karachi, Karachi, Pakistan
| | - Sarah Tasneem
- Neurochemistry and Biochemical Neuropharmacology Research Unit, Department of Biochemistry, University of Karachi, Karachi, Pakistan
| | - Shahla Perveen
- Neurochemistry and Biochemical Neuropharmacology Research Unit, Department of Biochemistry, University of Karachi, Karachi, Pakistan
| | - Rumaisa Zakir
- Neurochemistry and Biochemical Neuropharmacology Research Unit, Department of Biochemistry, University of Karachi, Karachi, Pakistan
| | - Darakhshan Jabeen Haleem
- Neurochemistry and Biochemical Neuropharmacology Research Unit, Department of Biochemistry, University of Karachi, Karachi, Pakistan/Neuroscience Research Laboratory, Dr. Panjwani Center for Molecular Medicine and Drug Research, ICCBS, University of Karachi, Karachi, Pakistan
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Ikram H, Tasneem S, Perveen S, Haleem DJ. Neurochemical and behavioral effects of midazolam: A dose related study. Pak J Pharm Sci 2020; 33:85-93. [PMID: 32122835] [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: 06/10/2023]
Abstract
In the present study we have monitored dose dependent effects of midazolam; a benzodiazepine (CNS depressant). It is the primary drug of choice for procedural sedation, preoperative sedation, and in emergency departments. Repeated administration of this drug is reported to have abuse potential and may cause this by increasing dopaminergic neurotransmission. Since an important role of 5-hydroxy tryptamine (5-HT) is there in the pathophysiology of anxiety and addiction, administration of midazolam may involve altered 5-HT metabolism as well. Present study was designed to monitor dose-dependent effects of midazolam and select the optimum dose for further experiments. Effects of midazolam were monitored on food intake, growth rate, activities in familiar and novel environments, light dark box activity, hot plate test, forced swim test and levels of dopamine, 5-HT and their metabolites. Midazolam was administered orally (0mg/kg, 2.5mg/kg, 5.0mg/kg and 10mg/kg) and behaviors were monitored post single midazolam administrations. Rats were decapitated and whole brain samples were collected and stored at -70°C until neurochemical analysis by HPLC-EC. Findings from the present study could be implicated to increased therapeutic utility of midazolam and related benzodiazepines.
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Affiliation(s)
- Huma Ikram
- Neurochemistry and Neuropharmacology Research Unit, Department of Biochemistry, University of Karachi, Karachi, Pakistan
| | - Sarah Tasneem
- Neurochemistry and Neuropharmacology Research Unit, Department of Biochemistry, University of Karachi, Karachi, Pakistan
| | - Shahla Perveen
- Neurochemistry and Neuropharmacology Research Unit, Department of Biochemistry, University of Karachi, Karachi, Pakistan
| | - Darakhshan Jabeen Haleem
- Neuroscience Research Laboratory, Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
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Hayward CPM, Tasneem S, Rivard GE. Thrombopoietin levels in Quebec platelet disorder-Implications for the mechanism of thrombocytopenia. Int J Lab Hematol 2018; 40:e33-e34. [PMID: 29388746 PMCID: PMC5873450 DOI: 10.1111/ijlh.12781] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 01/09/2018] [Indexed: 10/28/2022]
Affiliation(s)
- C P M Hayward
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada.,Department of Medicine, McMaster University, Hamilton, ON, Canada.,Hamilton Regional Laboratory Medicine Program, Hamilton, ON, Canada
| | - S Tasneem
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - G E Rivard
- Division of Hematology/Oncology, Centre Hospitalier Universitaire Sainte-Justine, Montréal, QC, Canada
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Akhter SN, Khondker NS, Tasneem S. Atypical post operative discharging sinus - a case report. Mymensingh Med J 2015; 24:424-426. [PMID: 26007279] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Surgical site infections (SSIs) are the second most common health care associated infection reported to the National Health Safety Network of the centre of disease control and prevention. SSIs by Mycobacterium tuberculosis are uncommon and diagnosis can be missed. Our patient had primary tuberculosis at surgical site without any evidence of tuberculosis at initial investigation. She presented with repeated discharging sinus at the wound of elective lower uterine caesarean section (LUCS). The case was diagnosed by histo-pathological evidence of chronic granulomatous lesion suggestive of tuberculosis from the excised tissue from wound and detection of acid fast bacilli (AFB) from swab by Ziehl Neelsen staining. After proper diagnosis the patient was treated with anti-tubercular drugs regiment for six months as per schedule of national guidelines for management of tuberculosis of Bangladesh Government. Then the patient was cured from unusual long sufferings.
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Affiliation(s)
- S N Akhter
- Dr Syeda Nazia Akhter, Assistant Professor, Department of Gynae & Obs, ICMH, Dhaka, Bangladesh
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Hayward CPM, Moffat KA, Castilloux JF, Liu Y, Seecharan J, Tasneem S, Carlino S, Cormier A, Rivard GE. Simultaneous measurement of adenosine triphosphate release and aggregation potentiates human platelet aggregation responses for some subjects, including persons with Quebec platelet disorder. Thromb Haemost 2012; 107:726-34. [PMID: 22234747 DOI: 10.1160/th11-10-0740] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Accepted: 11/12/2011] [Indexed: 01/08/2023]
Abstract
Platelet aggregometry and dense granule adenosine triphosphate (ATP) release assays are helpful to diagnose platelet disorders. Some laboratories simultaneously measure aggregation and ATP release using Chronolume® a commercial reagent containing D-luciferin, firefly luciferase and magnesium. Chronolume® can potentiate sub-maximal aggregation responses, normalising canine platelet disorder findings. We investigated if Chronolume® potentiates human platelet aggregation responses after observing discrepancies suspicious of potentiation. Among patients simultaneously tested by light transmission aggregometry (LTA) on two instruments, 18/43 (42%), including 14/24 (58%) with platelet disorders, showed full secondary aggregation with one or more agonists only in tests with Chronolume®. As subjects with Quebec platelet disorder (QPD) did not show the expected absent secondary aggregation responses to epinephrine in tests with Chronolume®, the reason for the discrepancy was investigated using samples from 10 QPD subjects. Like sub-threshold ADP (0.75 μM), Chronolume® significantly increased QPD LTA responses to epinephrine (p<0.0001) and it increased both initial and secondary aggregation responses, leading to dense granule release. This potentiation was not restricted to QPD and it was mimicked adding 1-2 mM magnesium, but not D-luciferin or firefly luciferase, to LTA assays. Chronolume® potentiated the ADP aggregation responses of QPD subjects with a reduced response. Furthermore, it increased whole blood aggregation responses of healthy control samples to multiple agonists, tested at concentrations used for the diagnosis of platelet disorders (p values <0.05). Laboratories should be aware that measuring ATP release with Chronolume® can potentiate LTA and whole blood aggregation responses, which alters findings for some human platelet disorders, including QPD.
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Affiliation(s)
- C P M Hayward
- 1Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada.
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Alam K, Tasneem S, Oliveras E. Retention of female volunteer community health workers in Dhaka urban slums: a case-control study. Health Policy Plan 2011; 27:477-86. [DOI: 10.1093/heapol/czr059] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [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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Tasneem S, Adam F, Minullina I, Pawlikowska M, Hui SK, Zheng S, Miller JL, Hayward CPM. Platelet adhesion to multimerin 1 in vitro: influences of platelet membrane receptors, von Willebrand factor and shear. J Thromb Haemost 2009; 7:685-92. [PMID: 19175495 DOI: 10.1111/j.1538-7836.2009.03284.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Multimerin 1 (MMRN1) is a large, homopolymeric adhesive protein, stored in platelets and endothelium, that when released, binds to activated platelets, endothelial cells and the extracellular matrix. OBJECTIVES The goals of our study were to determine if (i) MMRN1 supports adhesion of resting and/or activated platelets under conditions of blood flow, and (ii) if MMRN1 enhances platelet adhesion to types I and III collagen. PATIENTS/METHODS Platelet adhesion was evaluated using protein-coated microcapillaries, with or without added adhesive proteins and receptor antibodies. Platelets from healthy controls, Glanzmann thrombasthenia (GT) and severe von Willebrand factor (VWF)-deficient donors were tested. RESULTS MMRN1 supported the adhesion of activated, but not resting, washed platelets over a wide range of shear rates. At low shear (150 s(-1)), this adhesion was supported by integrins alphavbeta3 and glycoprotein (GP) Ibalpha but it did not require integrins alphaIIbbeta3 or VWF. At high shear (1500 s(-1)), adhesion to MMRN1 was supported by beta3 integrin-independent mechanisms, involving GPIbalpha and VWF, that did not require platelet activation when VWF was perfused over MMRN1 prior to platelets. MMRN1 bound to types I and III collagen, independent of VWF, however, its enhancing effects on platelet adhesion to collagen at high shear were VWF dependent. CONCLUSIONS MMRN1 supports platelet adhesion by VWF-dependent and -independent mechanisms that vary by flow rate. Additionally, MMRN1 binds to, and enhances, platelet adhesion to collagen. These findings suggest that MMRN1 could function as an adhesive ligand that promotes platelet adhesion at sites of vascular injury.
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Affiliation(s)
- S Tasneem
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
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Jeimy SB, Krakow EF, Fuller N, Tasneem S, Hayward CPM. An acquired factor V inhibitor associated with defective factor V function, storage and binding to multimerin 1. J Thromb Haemost 2008; 6:395-7. [PMID: 18047547 DOI: 10.1111/j.1538-7836.2008.02860.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jeimy SB, Krakow EF, Fuller N, Tasneem S, Hayward CPM. An acquired factor V inhibitor associated with defective factor V function, storage and binding to multimerin 1. J Thromb Haemost 2007; 6:395-7. [PMID: 18047547 DOI: 10.1111/j.1538-7836.2007.02860.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Saeed SA, Mesaik MA, Quadri J, Tasneem S, Motiwala A, Khalid U, Ali SU, Hussain F, Choudhary MI. Interactions of Cyclooxygenase Inhibitors with Reactive Oxygen Species. ACTA ACUST UNITED AC 2006. [DOI: 10.3923/jpt.2006.115.125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Abstract
Heat shock proteins (hsp) may be involved in the initiation and perpetuation of autoimmune diseases. In order to investigate the possible role of hsp and other intracellular proteins of Mycobacterium tuberculosis in the autoantibody production in SLE, the immuno-crossreactivity of SLE autoantibodies with Mycobacterium tuberculosis sonic extract and hsp-70 kDa was investigated. These proteins showed significant binding with Protein A-Sepharose isolated SLE IgG. Western blotting of hsp-70 with SLE IgG showed strong recognition, suggesting possible involvement of hsp and other intracellular proteins of Mycobacterium tuberculosis in the autoantibody induction in SLE.
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Affiliation(s)
- S Tasneem
- Department of Biochemistry, Faculty of Medicine, JN Medical College, AMU Aligarth, India
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Abstract
Reactive oxygen species (ROS) are implicated in a variety of human diseases. The formation of pathogenic anti-DNA antibodies in systemic lupus erythematosus (SLE) has been extensively investigated. ROS-modified DNA has been found to be a better antigen for anti-DNA antibodies found in SLE sera. A comparative binding of SLE autoantibodies with native poly(I), ROS-poly(I) and nDNA has been studied. Affinity-purified SLE IgG exhibited a high degree of specificity towards the ROS-modified poly(I) in comparison to native DNA and native poly(I), reiterated visually by gel retardation assay. The data suggested that hydroxyl radical-modified nucleic acids like RNA and DNA might be agent for the induction of circulating SLE anti-DNA autoantibodies.
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Affiliation(s)
- S Tasneem
- Department of Biochemistry, Faculty of Medicine, A.M.U., Aligarh 202002, India
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Abstract
The effect of hydroxyl radicals on polyinosinic acid [poly(I)] was studied. Strand breaks, base alteration and a decrease in absorbance at 248 nm (lambda max) were observed upon *OH modification of poly(I). The broad antigen specificity of the induced anti-poly(I) and anti-ROS-poly(I) antibodies showed diverse antigen binding characteristics similar to those of SLE autoantibodies. Recognition of both poly(I) and ROS-poly(I) by human SLE anti-DNA autoantibodies was observed. The possible significance of these findings in the etiology of SLE has been discussed.
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Affiliation(s)
- S Tasneem
- Department of Biochemistry, Faculty of Medicine, A.M.U., Aligarh, India
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