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Yasseen BA, Elkhodiry AA, El-Messiery RM, El-sayed H, Elbenhawi MW, Kamel AG, Gad SA, Zidan M, Hamza MS, Al-ansary M, Abdel-Rahman EA, Ali SS. Platelets' morphology, metabolic profile, exocytosis, and heterotypic aggregation with leukocytes in relation to severity and mortality of COVID-19-patients. Front Immunol 2022; 13:1022401. [PMID: 36479107 PMCID: PMC9720295 DOI: 10.3389/fimmu.2022.1022401] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 08/18/2022] [Accepted: 11/07/2022] [Indexed: 11/22/2022] Open
Abstract
Roles of platelets during infections surpass the classical thrombus function and are now known to modulate innate immune cells. Leukocyte-platelet aggregations and activation-induced secretome are among factors recently gaining interest but little is known about their interplay with severity and mortality during the course of SARS-Cov-2 infection. The aim of the present work is to follow platelets' bioenergetics, redox balance, and calcium homeostasis as regulators of leukocyte-platelet interactions in a cohort of COVID-19 patients with variable clinical severity and mortality outcomes. We investigated COVID-19 infection-related changes in platelet counts, activation, morphology (by flow cytometry and electron microscopy), bioenergetics (by Seahorse analyzer), mitochondria function (by high resolution respirometry), intracellular calcium (by flow cytometry), reactive oxygen species (ROS, by flow cytometry), and leukocyte-platelet aggregates (by flow cytometry) in non-intensive care unit (ICU) hospitalized COVID-19 patients (Non-ICU, n=15), ICU-survivors of severe COVID-19 (ICU-S, n=35), non-survivors of severe COVID-19 (ICU-NS, n=60) relative to control subjects (n=31). Additionally, molecular studies were carried out to follow gene and protein expressions of mitochondrial electron transport chain complexes (ETC) in representative samples of isolated platelets from the studied groups. Our results revealed that COVID-19 infection leads to global metabolic depression especially in severe patients despite the lack of significant impacts on levels of mitochondrial ETC genes and proteins. We also report that severe patients' platelets exhibit hyperpolarized mitochondria and significantly lowered intracellular calcium, concomitantly with increased aggregations with neutrophil. These changes were associated with increased populations of giant platelets and morphological transformations usually correlated with platelets activation and inflammatory signatures, but with impaired exocytosis. Our data suggest that hyperactive platelets with impaired exocytosis may be integral parts in the pathophysiology dictating severity and mortality in COVID-19 patients.
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Affiliation(s)
- Basma A. Yasseen
- Research Department, Children’s Cancer Hospital Egypt, Cairo, Egypt
| | - Aya A. Elkhodiry
- Research Department, Children’s Cancer Hospital Egypt, Cairo, Egypt
| | - Riem M. El-Messiery
- Infectious Disease Unit, Internal Medicine Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hajar El-sayed
- Research Department, Children’s Cancer Hospital Egypt, Cairo, Egypt
| | | | - Azza G. Kamel
- Research Department, Children’s Cancer Hospital Egypt, Cairo, Egypt
| | - Shaimaa A. Gad
- Pharmacology Department, Medical Research and Clinical Studies Institute, National Research Center, Cairo, Egypt
| | - Mona Zidan
- Research Department, Children’s Cancer Hospital Egypt, Cairo, Egypt
| | - Marwa S. Hamza
- Department of Clinical Pharmacy Practice, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Mohamed Al-ansary
- Department of Intensive Care, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Engy A. Abdel-Rahman
- Research Department, Children’s Cancer Hospital Egypt, Cairo, Egypt,Pharmacology Department, Faculty of Medicine, Assuit University, Assuit, Egypt,*Correspondence: Sameh S. Ali, ; Engy A. Abdel-Rahman,
| | - Sameh S. Ali
- Research Department, Children’s Cancer Hospital Egypt, Cairo, Egypt,*Correspondence: Sameh S. Ali, ; Engy A. Abdel-Rahman,
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2
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Omran MM, Shouman SA, Abdelfattah R, Moussa HS, Thabet NA, Hamza MS. Modulation of 25(OH) vitamin D3 level by Imatinib mesylate in patients with chronic myelogenous leukaemia: The role of uptake and efflux transporters. Curr Ther Res Clin Exp 2022; 97:100684. [PMID: 36188630 PMCID: PMC9519432 DOI: 10.1016/j.curtheres.2022.100684] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 08/27/2022] [Indexed: 11/18/2022] Open
Abstract
Background Objective Methods Results Conclusions
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Affiliation(s)
- Mervat M. Omran
- Pharmacology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
- Address correspondence to: Mervat M. Omran, MD, Pharmacology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Kasr Al Eini St, Fom El Khalig, Postal Code: 11796, Cairo, Egypt.
| | - Samia A. Shouman
- Pharmacology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Raafat Abdelfattah
- Medical Oncology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Heba S. Moussa
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Nadia A. Thabet
- Pharmacology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Marwa S. Hamza
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo, Egypt
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3
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Hamza MS, Tikamdas R, El Baghdady NS, Sayed M, Elbarazi AS, Badary OA, Elmazar MM. Safety and Effectiveness of COVID-19 Vaccines: Results from a Cross-Sectional Survey among Staff, Workers and Students at an Egyptian University. Vaccines (Basel) 2022; 10:vaccines10060846. [PMID: 35746454 PMCID: PMC9230523 DOI: 10.3390/vaccines10060846] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/21/2022] [Accepted: 05/24/2022] [Indexed: 11/16/2022] Open
Abstract
Mass vaccination is the most effective strategy against the spread of the COVID-19 pandemic. However, concerns about the vaccine’s safety and effectiveness remain a huge obstacle to vaccine acceptance. The aim of the present study was to explore different COVID-19 vaccine outcomes, including the development of adverse events and/or COVID-19 infection following COVID-19 vaccination. A cross-sectional study was conducted by distributing an online survey targeting staff and students at the British university in Egypt. A total of 637 participants fully completed the survey. Of these, 609 (95.6%) participants received the COVID-19 vaccine. Only 12.6% of the total vaccinated participants reported COVID-19 infection after vaccination. Of these, only 2.8% reported having severe symptoms while 9.9% reported having no or mild symptoms. The most common side effects reported after the first vs. second dose were headache (36.3% vs. 14.6%), tiredness and fatigue (26.9% vs. 10.7), and fever (25.6% vs. 6.7%). In conclusion, the present study explored different COVID-19 vaccine outcomes where the overall incidence of side effects is higher after the first dose than after the second dose. There is a relationship between COVID-19 vaccines’ side effects and gastrointestinal disorders, gender, and the type of COVID-19 vaccine. Post-vaccination symptoms were more frequently reported in women compared to men and more frequent with viral vector vaccines compared to other types. The effectiveness of different types of COVID-19 vaccines was confirmed by the lower incidence rate of post-vaccination COVID-19 infection.
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Affiliation(s)
- Marwa S. Hamza
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo 11837, Egypt; (R.T.); (N.S.E.B.); (M.S.); (A.S.E.); (O.A.B.)
- Correspondence:
| | - Rajiv Tikamdas
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo 11837, Egypt; (R.T.); (N.S.E.B.); (M.S.); (A.S.E.); (O.A.B.)
| | - Noha S. El Baghdady
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo 11837, Egypt; (R.T.); (N.S.E.B.); (M.S.); (A.S.E.); (O.A.B.)
| | - Moustafa Sayed
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo 11837, Egypt; (R.T.); (N.S.E.B.); (M.S.); (A.S.E.); (O.A.B.)
| | - Amani S. Elbarazi
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo 11837, Egypt; (R.T.); (N.S.E.B.); (M.S.); (A.S.E.); (O.A.B.)
| | - Osama A. Badary
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo 11837, Egypt; (R.T.); (N.S.E.B.); (M.S.); (A.S.E.); (O.A.B.)
| | - Mohamed M. Elmazar
- Pharmacology and Biochemistry Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo 11837, Egypt;
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4
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Hamza MS, Shouman SA, Abdelfattah R, Moussa HS, Omran MM. Determination of the Cut-off Value for Imatinib Plasma Levels Linked to Occurrence of Bone Pain in CML Patients. Drug Des Devel Ther 2022; 16:1595-1604. [PMID: 35669281 PMCID: PMC9166450 DOI: 10.2147/dddt.s365646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/26/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Marwa S Hamza
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo, Egypt
- Correspondence: Marwa S Hamza, Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo, Egypt, Email
| | - Samia A Shouman
- Pharmacology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Raafat Abdelfattah
- Medical Oncology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Heba S Moussa
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mervat M Omran
- Pharmacology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
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5
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Hamza MS, Ramadan E, Salama SA. Author Correction: Glucose and fatty acid metabolism involved in the protective effect of metformin against ulipristal-induced endometrial changes in rats. Sci Rep 2021; 11:18211. [PMID: 34497351 PMCID: PMC8426402 DOI: 10.1038/s41598-021-97931-y] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Marwa S Hamza
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, P.O. Box 43, Cairo, 11837, Egypt. .,The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, P.O. Box 43, Cairo, 11837, Egypt.
| | - Eman Ramadan
- The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, P.O. Box 43, Cairo, 11837, Egypt.,Pharmacology and Biochemistry Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, P.O. Box 43, Cairo, 11837, Egypt
| | - Salama A Salama
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al-Azhar University Nasr City, Cairo, 11751, Egypt
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6
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Abstract
Venous thromboembolism (VTE) is a major health problem in patients with cancer. Cancer augments thrombosis and causes cancer-associated thrombosis (CAT) and vice versa thrombosis amplifies cancer progression, termed thrombosis-associated cancer (TAC). Risk factors that lead to CAT and TAC include cancer type, chemotherapy, radiotherapy, hormonal therapy, anti-angiogenesis therapy, surgery, or supportive therapy with hematopoietic growth factors. There are some other factors that have an effect on CAT and TAC such as tissue factor, neutrophil extracellular traps (NETs) released in response to cancer, cancer procoagulant, and cytokines. Oncogenes, estrogen hormone, and thyroid hormone with its integrin αvβ3 receptor promote angiogenesis. Lastly, patient-related factors can play a role in development of thrombosis in cancer. Low-molecular-weight heparin and direct oral anticoagulants (DOACs) are used in VTE prophylaxis and treatment rather than vitamin K antagonist. Now, there are new directions for potential management of VTE in patients with cancer such as euthyroid, blockade of thyroid hormone receptor on integrin αvβ3, sulfated non-anticoagulant heparin, inhibition of NETs and stratifying low and high-risk patients with significant bleeding problems with DOACs.
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Affiliation(s)
- Marwa S. Hamza
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
- The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Shaker A. Mousa
- The Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselaer, NY, USA
- Shaker A. Mousa, PhD, The Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, 1 Discovery Drive, Rensselaer, NY 12144, USA.
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7
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Badary OA, Hamza MS, Tikamdas R. Thymoquinone: A Promising Natural Compound with Potential Benefits for COVID-19 Prevention and Cure. Drug Des Devel Ther 2021; 15:1819-1833. [PMID: 33976534 PMCID: PMC8106451 DOI: 10.2147/dddt.s308863] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 04/13/2021] [Indexed: 12/15/2022]
Abstract
COVID-19 has caused a major global health crisis, as excessive inflammation, oxidation, and exaggerated immune response in some sufferers can lead to a condition known as cytokine storm, which may progress to acute respiratory distress syndrome (ARDs), which can be fatal. So far, few effective drugs have emerged to assist in the treatment of patients with COVID-19, though some herbal medicine candidates may assist in the fight against COVID-19 deaths. Thymoquinone (TQ), the main active ingredient of black seed oil, possesses antioxidant, anti-inflammatory, antiviral, antimicrobial, immunomodulatory and anticoagulant activities. TQ also increases the activity and number of cytokine suppressors, lymphocytes, natural killer cells, and macrophages, and it has demonstrated antiviral potential against a number of viruses, including murine cytomegalovirus, Epstein-Barr virus, hepatitis C virus, human immunodeficiency virus, and other coronaviruses. Recently, TQ has demonstrated notable antiviral activity against a SARSCoV-2 strain isolated from Egyptian patients and, interestingly, molecular docking studies have also shown that TQ could potentially inhibit COVID-19 development through binding to the receptor-binding domain on the spike and envelope proteins of SARS-CoV-2, which may hinder virus entry into the host cell and inhibit its ion channel and pore forming activity. Other studies have shown that TQ may have an inhibitory effect on SARS CoV2 proteases, which could diminish viral replication, and it has also demonstrated good antagonism to angiotensin-converting enzyme 2 receptors, allowing it to interfere with virus uptake into the host cell. Several studies have also noted its potential protective capability against numerous chronic diseases and conditions, including diabetes, hypertension, dyslipidemia, asthma, renal dysfunction and malignancy. TQ has recently been tested in clinical trials for the treatment of several different diseases, and this review thus aims to highlight the potential therapeutic effects of TQ in the context of the COVID-19 pandemic.
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Affiliation(s)
- Osama A Badary
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt.,Clinical Pharmacy Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Marwa S Hamza
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Rajiv Tikamdas
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
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8
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Abstract
Extraordinary actions have been implemented in an effort to control the rapid spread of the ongoing COVID-19 epidemic in Egypt. People’s adherence to control measures is influenced by their knowledge, attitudes and practices towards the disease. Therefore, in the present study we assessed pharmacy senior students’ knowledge, attitudes and practices towards the COVID-19 pandemic. An online questionnaire was created and it consisted of 12 questions testing their knowledge about COVID-19 clinical characteristics, transmission routes and prevention and control steps. Among senior pharmacy students (n = 238), 70% were females and 63% were living in greater Cairo. Their main source of information included social media (70%), published articles (48%) and television (48%). The overall correct knowledge score was 83%. Most of the students displayed a good COVID-19 knowledge level (72.5% of the students). The students were least informed when trying to answer questions about hyper-coagulation, as a major cause for death in patients with severe COVID-19, and about the timings on the necessity to wear masks. Assessment of students’ attitudes and practices towards COVID-19 reflected that 87% of them were confident that health care teams and scientists could win the fight against the virus. In addition, 72% of students agreed that COVID-19 will be controlled successfully. The greater the students’ knowledge, the more confident they felt that COVID-19 will be controlled successfully (OR 2.2, 95% confidence interval [CI] 1.03–4.72). Good behavioral practice towards COVID-19 control was confirmed when 87% of students answered that they didn’t go out to any crowded place. Females were 3.6 times (95% confidence interval [CI] 1.03–3.11) more likely to avoid going out than males. Bad behavioral practice became evident when approximately 50% of students admitted that they did not wear masks when they left their house. Therefore, more efforts should be taken to protect future pharmacists from this pandemic.
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Affiliation(s)
- Marwa S Hamza
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, P.O. Box 43, El-Sherouk City, Cairo, 11837, Egypt. .,The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, P.O. Box 43, El-Sherouk City, Cairo, 11837, Egypt.
| | - Osama A Badary
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, P.O. Box 43, El-Sherouk City, Cairo, 11837, Egypt.,The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, P.O. Box 43, El-Sherouk City, Cairo, 11837, Egypt
| | - Mohamed M Elmazar
- The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, P.O. Box 43, El-Sherouk City, Cairo, 11837, Egypt.,Pharmacology and Biochemistry Department, Faculty of Pharmacy, The British University in Egypt, P.O. Box 43, El-Sherouk City, Cairo, 11837, Egypt
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9
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Swellam M, Bakr NM, El Magdoub HM, Hamza MS, Ezz El Arab LR. Emerging role of miRNAs as liquid biopsy markers for prediction of glioblastoma multiforme prognosis. J Mol Neurosci 2020; 71:836-844. [PMID: 32989634 DOI: 10.1007/s12031-020-01706-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 07/21/2020] [Accepted: 09/07/2020] [Indexed: 01/01/2023]
Abstract
Serum miRNAs (miRs) have gained consideration as encouraging molecular markers for cancer diagnosis and prediction of prognosis. The authors aimed to identify the exact role of miR-17-5p, miR-125b, and miR-221 among glioblastoma multiforme (GBM) patients before and after standard treatment, and correlate their expression with survival pattern. The study included 25 GBM patients and 20 healthy controls. Serum miR-17-5p, miR-125b, and miR-221 expression were analyzed before and after treatment using quantitative real-time polymerase chain reaction (qPCR). The diagnostic efficacy for the tested miRs was evaluated using the receiver operating characteristic (ROC) curve, and the relation of miRs expression versus clinical criteria for GBM was assessed. Patients' survival patterns were examined versus miRs expression levels. A significant difference was reported between miRs expression among the enrolled individuals. Both miR-17-5p and miR-221 reported significant elevations in GBM patients who: are above 60 years old, underwent biopsy resection, have a non-frontal lesion, with tumor size above 5 cm, and with performance status equals 2 according to the Eastern Cooperative Oncology Group (ECOG) Performance Status. With regard to miR-125b, a significant difference was detected according to surgery strategy, primary lesion of the tumor, and ECOG status. MiRs levels were significantly decreased for GBM patients after treatment. Survival patterns demonstrated an increase in miR-17-5p, miR-125b, and miR-221 in GBM patients with worse progression-free survival and among those with worse overall survival. Detection of serum miR-17-5p, miR-125b, and miR-221 aids in the prediction of prognosis and response to treatment strategy for GBM patients.
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Affiliation(s)
- Menha Swellam
- Biochemistry Department, Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, Dokki, Egypt.,High Throughput Molecular and Genetic Laboratory, Centers of Excellence for Advanced Sciences, National Research Centre, Giza, Dokki, Egypt
| | - Noha M Bakr
- Biochemistry Department, Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, Dokki, Egypt.,High Throughput Molecular and Genetic Laboratory, Centers of Excellence for Advanced Sciences, National Research Centre, Giza, Dokki, Egypt
| | - Hekmat M El Magdoub
- Biochemistry Department, Faculty of Pharmacy, Translational Research Unit, Misr International University, Cairo, Egypt.
| | - Marwa S Hamza
- Clinical Pharmacy Practice Department, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo, Egypt.,The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, Cairo, Egypt
| | - Lobna R Ezz El Arab
- Clinical Oncology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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10
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Sobeh M, Hamza MS, Ashour ML, Elkhatieb M, El Raey MA, Abdel-Naim AB, Wink M. A Polyphenol-Rich Fraction from Eugenia uniflora Exhibits Antioxidant and Hepatoprotective Activities In Vivo. Pharmaceuticals (Basel) 2020; 13:E84. [PMID: 32365693 PMCID: PMC7281215 DOI: 10.3390/ph13050084] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 04/16/2020] [Accepted: 04/27/2020] [Indexed: 12/12/2022] Open
Abstract
Leaves from Eugenia uniflora, the red Brazilian cherry, have a high content of flavonoids that possess several biological effects such as anti-inflammatory, antioxidant, and antidiabetic activities. However, their influence on carbon tetrachloride (CCl4)-induced acute liver injury in rats has not been investigated. In the current study, a bioguided fractionation assay revealed that the ethyl acetate fraction (EAF) of Eugenia uniflora is the safest and most active fraction. LC-MS analysis of the ethyl acetate fraction revealed 22 secondary metabolites, mainly myricetin and quercetin derivatives. EAF did not show toxicity up to 2000 mg/kg, and exhibited antioxidant activities in vitro in DPPH assay with IC50 of 3.35 µg/mL. Additionally, EAF exhibited substantial antioxidant activities in vivo by counteracting the oxidative damage of the prooxidant juglone [80 µM] in Caenorhabditis elegans model organism and increased its survival rate in a dose-dependent fashion through the DAF-16/Foxo pathway. Furthermore, the hepatoprotective activity of EAF (200 mg/kg against carbon tetrachloride (CCl4) intoxicated male Wistar rats was assessed. EAF significantly inhibited CCl4-induced elevation of alanine aminotransferase (ALT), aspartate transaminase (AST), total bilirubin (TB), total cholesterol (TC), and triglycerides (TG), in the blood serum and prevented lipid peroxidation and restored superoxide dismutase (SOD) activity and glutathione (GSH) content in liver tissues. The observed hepatoprotective effects of EAF, which were supported by histopathological observations as pretreatment with EAF, effectively attenuated the CCl4-induced histopathological changes. In conclusion, EAF of Eugenia uniflora leaves has substantial hepatoprotective activities against CCl4 induced acute liver injury in rats due to its antioxidant activity.
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Affiliation(s)
- Mansour Sobeh
- AgroBioSciences Research Division, Mohammed VI Polytechnic University, Lot 660–Hay MoulayRachid, Ben-Guerir 43150, Morocco
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, 69120 Heidelberg, Germany
| | - Marwa S. Hamza
- Department of Clinical Pharmacy Practice, Faculty of Pharmacy, The British University in Egypt, El-Sherouk City, P.O. Box 43, Cairo 11837, Egypt;
| | - Mohamed L. Ashour
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt;
| | - Mona Elkhatieb
- Department of Biochemistry, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt;
| | - Mohamed A El Raey
- Department of Phytochemistry and Plant Systematics, National Research Center, Dokki, Cairo 12622, Egypt;
| | - Ashraf B. Abdel-Naim
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, P.O. Box 80260, Jeddah 21589, Saudi Arabia;
| | - Michael Wink
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, 69120 Heidelberg, Germany
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11
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Zhao Y, Hamza MS, Leong HS, Lim CB, Pan YF, Cheung E, Soo KC, Iyer NG. Kruppel-like factor 5 modulates p53-independent apoptosis through Pim1 survival kinase in cancer cells. Oncogene 2007; 27:1-8. [PMID: 17603560 DOI: 10.1038/sj.onc.1210625] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Although Kruppel-like factor 5 (KLF5) is a transcription factor that has been implicated in pathways critical to carcinogenesis, controversy persists as to whether it functions as a tumor suppressor or as an oncogene. Here, we describe a novel role for KLF5 in a p53-independent apoptotic pathway. Using RNA-interference technology, we show that cells deficient in KLF5 have increased sensitivity to DNA damage, regardless of p53 status. Both p53 and p53-dependent factors are unaffected by KLF5 depletion. Instead, the apoptotic phenotype consequent to damage is associated with reduced bad phosphorylation, and downregulation of Pim1. Consistently, transfection of wild-type Pim1 is sufficient to rescue this phenotype. Previous data have shown a number of putative Sp1-binding consensus sequences on the Pim1 promoter. Remarkably, chromatin immunoprecipitation studies show that KLF5 binds to the Pim1 promoter, and that binding increases soon after damage. These results identify a novel, p53-independent apoptotic pathway through which KLF5 functions in response to DNA damage. Therapeutic deregulation of this pathway could be used to modulate chemosensitivity.
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Affiliation(s)
- Y Zhao
- Wee Kim Wee Laboratory of Surgical Oncology, Department of Surgical Oncology, National Cancer Centre, Singapore
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12
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Balestrieri PJ, Hamza MS, Ting PH, Blank RS, Grubb CT. Inadvertent intrathecal injection of labetalol in a patient undergoing post-partum tubal ligation. Int J Obstet Anesth 2006; 14:340-2. [PMID: 16140005 DOI: 10.1016/j.ijoa.2005.02.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2004] [Revised: 02/09/2005] [Accepted: 02/21/2005] [Indexed: 11/21/2022]
Abstract
After receiving a continuous spinal anesthetic for labor following an inadvertent dural puncture with a 17-gauge epidural needle, a morbidly obese parturient underwent post-partum tubal ligation 12 h after vaginal delivery. The patient received a total of 2 mL of 0.75% hyperbaric bupivacaine for the surgery. In response to moderate hypertension the patient received intravenous labetalol hydrochloride 20 mg. She subsequently was inadvertently administered approximately 15 mg of labetalol through the spinal catheter. The spinal catheter was removed immediately after the procedure. She suffered no apparent adverse neurologic effects.
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Affiliation(s)
- P J Balestrieri
- Department of Anesthesiology, University of Virginia Health System, Charlottesville, VA 22908-0710, USA.
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13
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Abstract
Ligand substitution equilibria of different alkylcobalamins (RCbl, R = Me, CH(2)Br, CH(2)CF(3), CHF(2), CF(3)) with cyanide have been studied. It was found that CN(-) first substitutes the 5,6-dimethylbenzimidazole (Bzm) moiety in the alpha-position, followed by substitution of the alkyl group in the beta-position trans to Bzm. The formation constants K(CN) for the 1:1 cyanide adducts (R(CN)Cbl) were found to be 0.38 +/- 0.03, 0.43 +/- 0.03, and 123 +/- 9 M(-1) for R = Me, CH(2)Br, and CF(3), respectively. In the case of R = CH(2)CF(3), the 1:1 adduct decomposes in the dark with CN(-) to give (CN)(2)Cbl. The unfavorable formation constants for R = Me and CH(2)Br indicate the requirement of very high cyanide concentrations to produce the 1:1 complex, which cause the kinetics of the displacement of Bzm to be too fast to follow kinetically. The kinetics of the displacement of Bzm by CN(-) could be followed for R = CH(2)CF(3) and CF(3) to form CF(3)CH(2)(CN)Cbl and CF(3)(CN)Cbl, respectively, in the rate-determining step. Both reactions show saturation kinetics at high cyanide concentration, and the limiting rate constants are characterized by the activation parameters: R = CH(2)CF(3), DeltaH = 71 +/- 1 kJ mol(-1), DeltaS = -25 +/- 4 J K(-1) mol(-1), and DeltaV = +8.9 +/- 1.0 cm(3) mol(-1); R = CF(3), DeltaH = 77 +/- 3 kJ mol(-1), DeltaS = +44 +/- 11 J K(-1) mol(-1), and DeltaV = +14.8 +/- 0.8 cm(3) mol(-1), respectively. These parameters are interpreted in terms of an I(d) and D mechanism for R = CH(2)CF(3) and CF(3), respectively. The results of the study enable the formulation of a general mechanism that can account for the substitution behavior of all investigated alkylcobalamins including coenzyme B(12).
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Affiliation(s)
- M S Hamza
- Institute for Inorganic Chemistry, University of Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
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14
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Simoneau II, Hamza MS, Mata HP, Siegel EM, Vanderah TW, Porreca F, Makriyannis A, Malan TP. The cannabinoid agonist WIN55,212-2 suppresses opioid-induced emesis in ferrets. Anesthesiology 2001; 94:882-7. [PMID: 11388542 DOI: 10.1097/00000542-200105000-00029] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Cannabinoid receptor agonists reverse nausea and vomiting produced by chemotherapy and radiation therapy in animals and humans but have not been tested against opioid-induced emesis. This study tests the hypothesis that cannabinoid receptor agonists will prevent opioid-induced vomiting. METHODS Twelve male ferrets were used. They weighed 1.2-1.6 kg at the beginning and 1.8-2.3 kg at the end of the experiments. All drugs were injected subcutaneously. WIN55,212-2, a mixed CB1-CB2 cannabinoid receptor agonist, was administered 25 min before morphine. Retches and vomits were counted at 5-min intervals for 30 min after morphine injection. RESULTS Retching and vomiting responses increased with increasing morphine doses up to 1.0 mg/kg, above which the responses decreased. Previous administration of naloxone prevented morphine-induced retching and vomiting. WIN55,212-2 dose-dependently reduced retching and vomiting. The ED50 was 0.05 mg/kg for retches and 0.03 mg/kg for vomits. At 0.13 mg/kg, retching decreased by 76% and vomiting by 92%. AM251, a CB1 receptor-selective antagonist, blocked the antiemetic actions of WIN55,212-2, but AM630, a CB2 receptor-selective antagonist, did not. CONCLUSIONS These results demonstrate that WIN55,212-2 prevents opioid-induced vomiting and suggest that the antiemetic activity of WIN55,212-2 occurs at CB1 receptors. This is consistent with findings that CB1 receptors are the predominant cannabinoid receptors in the central nervous system and that antiemetic effects of cannabinoids appear to be centrally mediated.
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Affiliation(s)
- I I Simoneau
- Department of Anesthesiology, The University of Arizona, Tucson 85724-5114, USA
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15
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Abstract
The ligand substitution reactions of trans-[CoIII(en)2(Me)H2O]2+, a simple model for coenzyme B12, were studied for cyanide and imidazole as entering nucleophiles. It was found that these nucleophiles displace the coordinated water molecule trans to the methyl group and form the six-coordinate complex trans-[Co(en)2(Me)L]. The complex-formation constants for cyanide and imidazole were found to be (8.3 +/- 0.7) x 10(4) and 24.5 +/- 2.2 M-1 at 10 and 12 degrees C, respectively. The second-order rate constants for the substitution of water were found to be (3.3 +/- 0.1) x 10(3) and 198 +/- 13 M-1 s-1 at 25 degrees C for cyanide and imidazole, respectively. From temperature and pressure dependence studies, the activation parameters delta H++, delta S++, and delta V++ for the reaction of trans-[CoIII(en)2(Me)H2O]2+ with cyanide were found to be 50 +/- 4 kJ mol-1, 0 +/- 16 J K-1 mol-1, and +7.0 +/- 0.6 cm3 mol-1, respectively, compared to 53 +/- 2 kJ mol-1, -22 +/- 7 J K-1 mol-1, and +4.7 +/- 0.1 cm3 mol-1 for the reaction with imidazole. On the basis of reported activation volumes, these reactions follow a dissociative mechanism in which the entering nucleophile could be weakly bound in the transition state.
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Affiliation(s)
- M S Hamza
- Institute for Inorganic Chemistry, University of Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany
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16
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Sawai ET, Hamza MS, Ye M, Shaw KE, Luciw PA. Pathogenic conversion of live attenuated simian immunodeficiency virus vaccines is associated with expression of truncated Nef. J Virol 2000; 74:2038-45. [PMID: 10644378 PMCID: PMC111683 DOI: 10.1128/jvi.74.4.2038-2045.2000] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Rhesus macaques infected with simian immunodeficiency virus (SIV) containing either a large nef deletion (SIVmac239Delta(152)nef) or interleukin-2 in place of nef developed high virus loads and progressed to simian AIDS. Viruses recovered from both juvenile and neonatal macaques with disease produced a novel truncated Nef protein, tNef. Viruses recovered from juvenile macaques infected with serially passaged virus expressing tNef exhibited a pathogenic phenotype. These findings demonstrated strong selective pressure to restore expression of a truncated Nef protein, and this reversion was linked to increased pathogenic potential in live attenuated SIV vaccines.
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Affiliation(s)
- E T Sawai
- Department of Medical Pathology, University of California, Davis, California 95616, USA
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17
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Awad MA, Hamza MS, Atwa SM, Sallouma MK. Isotopic and hydrogeochemical evaluation of groundwater at Qusier-Safaga area, eastern desert, Egypt. Environ Geochem Health 1996; 18:47-54. [PMID: 24194374 DOI: 10.1007/bf01771131] [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] [Subscribe] [Scholar Register] [Received: 04/20/1995] [Accepted: 07/07/1995] [Indexed: 06/02/2023]
Abstract
The groundwater resources of the El-Qusier-Safaga area on the Red Sea coastal zone have still to be utilised fully for social and economic development. In the present study, an inventory of recharge sources and quality of groundwater in different water bearing formations is made to assist in management of these vital resources. From a hydrochemical point of view, the origin of salinity in the five investigated aquifers are mainly dissolution of terrestrial minerals, leaching of soilsvia floods or ion exchanges processes. Stable isotope data clarify the interaction between different aquifers and indicate that the source of recharge is mainly meteoric water originating from palaeowater of the Pleistocene pluvial period, and from local precipitation as well as some marine water. Evaluation of the groundwater quality for domestic, irrigation and industrial purposes is discussed.
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Affiliation(s)
- M A Awad
- Siting and Environmental Department, National Center for Nuclear Safety and Radiation Control, Atomic Energy Authority, Nasr City, P.O. Box 7551, 11762, Cairo, Egypt
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18
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Awad MA, Nada AA, Hamza MS, Froehlich K. Chemical and isotopic investigation of groundwater in Tahta region, Sohag-Egypt. Environ Geochem Health 1995; 17:147-153. [PMID: 24194185 DOI: 10.1007/bf00126083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/1994] [Accepted: 01/31/1995] [Indexed: 06/02/2023]
Abstract
Chemical and isotopic investigations indicate that the recharge source for the groundwater in the Tahta district, adjacent to the Nile, is mainly from the Nile water seeping from irrigation channels. The water's chemical type is sodium bicarbonate, with values of oxygen-18 and deuterium close to that of Nile water. Another minor source of recharge to the far west of the Nile bank is palaeowater. This water's chemical type is sodium sulphate and sodium chloride. The change of water quality in some groundwater samples could be due to the extensive use of fertilizers to improve soil characteristics in new reclamation projects. In addition, these wells are slightly depleted in oxygen-18, deuterium and tritium. Recommendations for the periodic monitoring of groundwater quality for proper use are given.
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Affiliation(s)
- M A Awad
- Siting and Environmental Department, National Center for Nuclear Safety and Radiation Control, Atomic Energy Authority, Nasr City - 19762, P.O. Box 7559, Cairo, Egypt
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