11 results on '"Abdel-Razaq W"'
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2. The effects of antidepressants on cyclic AMP-response element-driven gene transcription in a model cell system
- Author
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Abdel-Razaq, W., Bates, T. E., and Kendall, D. A.
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- 2007
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3. The effects of desmethylimipramine on cyclic AMP-stimulated gene transcription in a model cell system
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Richards, J. K., Abdel-Razaq, W., Bates, T. E., and Kendall, D. A.
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- 2005
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4. The Effects of Antidepressants on Mitochondrial Function in a Model Cell System and Isolated Mitochondria
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Abdel-Razaq, W., primary, Kendall, D. A., additional, and Bates, T. E., additional
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- 2010
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5. The effects of antidepressants on cyclic AMP-response element-driven gene transcription in a model cell system
- Author
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Abdel-Razaq, W., Bates, T. E., Kendall, D. A., Abdel-Razaq, W., Bates, T. E., and Kendall, D. A.
- Abstract
The effects of the antidepressant drugs clomipramine (CLOM), desipramine (DMI), tianeptine (TIAN) and of norfluoxetine (NORF, the active metabolite of fluoxetine), were investigated in CHO cells expressing human beta2 adrenoceptors and a secreted placental alkaline phosphatase (SPAP) reporter gene to determine their actions on cyclic AMP-driven gene transcription. After 18 h of exposure, CLOM, DMI and NORF, but not TIAN, had biphasic effects on 1 microM isoprenaline-stimulated SPAP fsproduction with concentrations between 10 nM and 1 microM enhancing the maximal (E(max)) SPAP response, without changing EC50 values, but higher concentrations produced marked inhibitory effects. At nanomolar concentrations, CLOM and DMI increased expression of phospho-CREB (cyclic AMP response element binding protein). NORF was less effective but did significantly increase phospho-CREB at a concentration of 200 nM. TIAN had no effect. None of the antidepressants had any effect on CREB expression, nor on the accumulation of cyclic AMP. After prolonged exposure (7-21 days) to a low concentration (200 nM) of the antidepressants, the enhanced E(max) values for SPAP production evident after 18 h were not maintained but CLOM and DMI induced a significant leftward shift in the isoprenaline EC50 after a 7-day period of treatment and this was sustained at the 21 day time point. TIAN did not produce any significant changes. The results demonstrate that, in vitro, some but not all antidepressants can modify gene transcription via monoamine and cyclic AMP-independent mechanisms. The in vivo adaptive responses to TIAN probably involve alterations in different gene sets to those affected by other antidepressants.
6. Unveiling medication errors in liver transplant patients towards enhancing the imperative patient safety.
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Shawaqfeh MS, Alangari D, Aldamegh G, Almotairi J, Bin Orayer L, Albekairy NA, Abdel-Razaq W, Mardawi G, Almuqbil F, Aldebasi TM, and Albekairy AM
- Abstract
Background: Medication errors (MEs) are a significant healthcare problem that can harm patients and increase healthcare expenses. Being immunocompromised, liver-transplant patients are at high risk for complications if MEs inflict harmful or damaging effects. The present study reviewed and analyzed all MEs reported in Liver Transplant Patients., Methods: All MEs in the Liver Transplant Patients admitted between January 2016 to August 2022 were retrieved through the computerized physician order entry system, which two expert pharmacists classified according to the type and severity risk index., Results: A total of 314 records containing 407 MEs were committed by at least 71 physicians. Most of these errors involved drugs unrelated to managing liver-transplant-related issues. Antibiotic prescriptions had the highest mistake rate (17.0%), whereas immunosuppressants, routinely used in liver transplant patients, rank second with fewer than 14% of the identified MEs. The most often reported MEs (43.2%) are type-C errors, which, despite reaching patients, did not cause patient harm. Subgroup analysis revealed several factors associated with a statistically significant great incidence of MEs among physicians treating liver transplant patients., Conclusion: Although a substantial number of MEs occurred with liver transplant patients, the majority are not related to liver-transplant medications, which mainly belonged to type-C errors. This could be attributed to polypharmacy of transplant patients or the heavy workload on health care practitioners. Improving patient safety requires adopting regulations and strategies to promptly identify MEs and address potential errors., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2023 The Authors.)
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- 2023
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7. The Impact of Fasting the Holy Month of Ramadan on Colorectal Cancer Patients and Two Tumor Biomarkers: A Tertiary-Care Hospital Experience.
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Alshammari K, Alhaidal HA, Alharbi R, Alrubaiaan A, Abdel-Razaq W, Alyousif G, and Alkaiyat M
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Background: Fasting during the holy month of Ramadan is a religious ritual practiced by the majority of Muslims around the globe. This daytime fasting is short-term or intermittent fasting, which may be associated with valuable health benefits, particularly in cancer patients., Methods: A prospective cohort study of pre- and post-fasting evaluation of 37 colorectal cancer (CRC) patients was conducted at King Abdulaziz Medical City (KAMC) and King Abdullah Specialized Children's Hospital (KASCH)-oncology outpatient clinics. The study aimed to assess the impact of fasting during the holy month of Ramadan on the tolerability of chemotherapy side effects and to assess changes in the levels of carcinoembryonic antigen (CEA) and lactate dehydrogenase (LDH) tumor biomarkers, which are primarily associated with certain types of carcinomas, including CRC., Results: A total of 33 patients (89.2%) had fasted at least part of the month of Ramadan. Twenty-seven patients (73%) reported "Serenity" after fasting during Ramadan with improved tolerability of chemotherapy side effects. However, the results did not reveal any significant difference in the measured laboratory variables between pre-fasting values and by the end of the 30 days of Ramadan. Although statistically insignificant, the levels of CEA and LDH were reduced in 46.9% and 55.6% of patients, respectively. The mean level of CEA in the fasting group was substantially reduced by more than 40%, attributed to the highly significant decline of CEA levels in three patients (p=0.0283). Moreover, there were no significant differences between pre- and post-fasting blood creatinine levels or estimated glomerular filtration rates, ruling out any possible adverse effects of fasting on renal function., Conclusion: The current study confirms the safety and tolerability of intermittent fasting in CRC patients actively receiving chemotherapy, which is consistent with several reports. Nonetheless, the results did not reveal a significant decrease in CEA and LDH tumor biomarkers., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2023, Alshammari et al.)
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- 2023
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8. An assessment of asthma exacerbations in pediatric patients using a long-acting B2-agonist plus inhaled corticosteroid versus an inhaled corticosteroid alone.
- Author
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Alakeel YS, Khader E, Altuwayli N, Alrammah S, and Abdel-Razaq W
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Background: An asthma exacerbation is an anticipated sudden worsening of the disease severity, which usually does not respond to conservative therapy. The management of asthma depends on the severity of the disease symptoms, which includes an inhaled corticosteroid (ICS) and a bronchodilator. This study aimed to assess the efficacy of combining a long-acting B2-agonist (LABA) with ICS, compared to ICS alone, to reduce the incidence of asthma exacerbations in pediatric patients, diagnosed with severe persistent asthma., Methods: A retrospective analysis of the medical records was conducted for 586 children, admitted to the Emergency Department (ED) at King Abdullah Specialized Children Hospital in Riyadh, Saudi Arabia, for the management of severe persistent asthma symptoms, from January 2016 to September 2019., Results: The majority (n = 480, 81.9%) of the patients received fluticasone (Flovent)® as the standard of care ICS treatment for controlling asthma, and a small proportion (n = 106, 18.1%) were treated with a combination of LABA and ICS. A significant increase in the frequency of recurrent asthma exacerbation episodes occurred in the group receiving ICS alone (98.5%), compared to 67.0% in the combination group (p < 0.0001). Moderate to severe exacerbations were significantly higher in the ICS group compared to the combination group (95.6% versus 84.5%, respectively, p = 0.0005)., Conclusions: The current results confirm the substantial efficacy of the LABA/ICS combination therapy in reducing the incidence and severity of asthma exacerbations in pediatric patients, compared to ICS alone., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2022 The Author(s).)
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- 2022
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9. Effect of chronic spinal cord injury's severity on sperm parameters in rat: correlation with locomotion deficits.
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Kaddumi EG, Shuqair DA, Omoush SA, Abdel-Razaq W, and Alkhateeb HH
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- Animals, Humans, Locomotion, Male, Rats, Sperm Motility, Spermatozoa, Spinal Cord, Infertility, Spinal Cord Injuries complications
- Abstract
Objectives: Infertility is one of the major concerns for male patients following spinal cord injury (SCI). Although the severity of the injury has a large impact on extent of infertility, the effect of exact injury extent (with specific affected spinal tracts) on fertility is not studied yet., Materials and Methods: In the present study, sperm parameters, locomotion scores, and hormonal changes were evaluated following dorsal one third SCI (1/3 SCI), dorsal two third SCI (2/3 SCI), and complete spinal cord transection (TX) at T8 spinal level in male rats., Results: Sperm count decreased significantly following 1/3 SCI and Tx compered to normal (control and sham). In addition, sperm count decreased significantly in Tx compared to 1/3 SCI and 2/3 SCI. Concerning sperm motility, although, percentage of motile sperms decreased significantly in Tx group in comparison to all other groups, the percentage of rapid progressive motile sperms (RPM) decreased significantly in all SCI groups compared to normal. Meanwhile, locomotion score (BBB-score) showed a significant progressive decrease following SCI compared to normal or within SCI groups. However, there was no significant changes in the serum hormonal and seminal fructose concentrations following SCI compared to normal., Conclusions: These results show that understanding the extent of SCI, the affected spinal tracts, and the resultant locomotion deficits may help to predict the deficits in sperm parameters and hence fertility potentials.
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- 2022
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10. Severing the ventral funiculus in chronic spinal cord injury has the most deteriorating effect on spermatogenesis in rats.
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Kaddumi EG, Omoush SA, Shuqair DA, Abdel-Razaq W, Alkhateeb HH, and Kanaan RA
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- Animals, Male, Organ Size physiology, Rats, Sprague-Dawley, Spinal Cord drug effects, Testis pathology, Testis physiopathology, Testosterone pharmacology, Follicle Stimulating Hormone pharmacology, Spermatogenesis drug effects, Spinal Cord physiopathology, Spinal Cord Injuries physiopathology
- Abstract
Sexual dysfunction, following spinal cord injury (SCI), is highly dependent on the extent of injury. SCI disrupts the supraspinal innervation of the reproductive organs; resulting in structural and functional deficits. Relating the extent of SCI to these changes could eventually improve diagnoses and treatment planning of sexual dysfunction following SCI. In the present study, following chronic SCI of different severities (1/3 dorsal SCI (1/3 SCI), 2/3 dorsal SCI (2/3 SCI), and complete transection (Tx)) at T8 spinal level, histological changes of seminiferous tubules parameters in testis were examined. The diameter of seminiferous tubules (DST) and epithelial height of seminiferous tubules (HST) were significantly decreased in all SCI groups compared to control and sham. In addition, DST in 2/3 SCI and Tx groups and HST in Tx group were significantly decreased in comparison with 1/3 SCI animals. Nonetheless, the diameter of seminiferous tubules' lumen decreased significantly in 2/3 SCI and Tx compared to control, sham, and 1/3 SCI groups. Concerning cellular component, the number of spermatocytes and spermatids layers significantly decreased in both 1/3 and 2/3 SCI in comparison to normal. However, Tx had the most prominent deteriorating effect on these layers; indicating impairment in the process of spermatogenesis. These results show that the spinal tracts are part of the neural circuitries innervating the testis and responsible for their structural support. These tracts are mainly distributed between the lateral and ventral funiculi at T8 spinal level. Consequently, sparing ventral funiculi in the SCI prevents the severe decline in spermatogenesis., (Copyright © 2020 Elsevier B.V. All rights reserved.)
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- 2020
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11. Risk Factors Associated with Trastuzumab-induced Cardiotoxicity in Patients with Human Epidermal Growth Factor Receptor 2-positive Breast Cancer.
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Abdel-Razaq W, Alzahrani M, Al Yami M, Almugibl F, Almotham M, and Alregaibah R
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Context: Although trastuzumab is a highly effective and selective targeted therapy for human epidermal growth factor receptor 2 (HER2)-positive breast cancer, the drug-induced cardiotoxicity may confine its usefulness in patients., Aim: To explore risk factors associated with the development of cardiotoxicity in patients with HER2-positive breast cancer., Settings and Design: A retrospective review of medical records and chart review for all patients with breast cancer treated with trastuzumab was conducted at King Abdulaziz Medical City and King Abdullah Specialized Children Hospital in Riyadh, Kingdom of Saudi Arabia, between October 2015 and February 2018. Patients with declined left ventricular ejection fraction, either with or without cardiac symptoms, were recognized as those with cardiotoxicity due to trastuzumab administration., Results: A total of 146 patients were included in the study with an average age of 52.7 (standard deviation = 12.2) years. Thirty-two (21.9%) patients developed cardiotoxicity. However, only 24 (16.4%) were symptomatic with an apparent heart failure but it did not necessitate interruption of trastuzumab therapy. The majority of patients had prior underlying cardiovascular diseases. This study identified unilateral tumor site (62.5%), breast surgery (37.5%), and concomitant taxane chemotherapy (62.5%) as the main risk factors associated with significant increase in cardiotoxicity in patients with breast cancer (with P values of 0.0269, 0.0482, and 0.0225, respectively)., Conclusion: The majority of patients (more than 90%) developed cardiotoxicity after completion of chemotherapy. However, recruiting a larger sample size should be warranted to confirm or negate these findings., Competing Interests: There are no conflicts of interest., (Copyright: © 2019 Journal of Pharmacy and Bioallied Sciences.)
- Published
- 2019
- Full Text
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