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Youssef ME, Yahya G, Popoviciu MS, Cavalu S, Abd-Eldayem MA, Saber S. Unlocking the Full Potential of SGLT2 Inhibitors: Expanding Applications beyond Glycemic Control. Int J Mol Sci 2023; 24:ijms24076039. [PMID: 37047011 PMCID: PMC10094124 DOI: 10.3390/ijms24076039] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [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: 02/03/2023] [Revised: 03/20/2023] [Accepted: 03/21/2023] [Indexed: 04/14/2023] Open
Abstract
The number of diabetic patients has risen dramatically in recent decades, owing mostly to the rising incidence of type 2 diabetes mellitus (T2DM). Several oral antidiabetic medications are used for the treatment of T2DM including, α-glucosidases inhibitors, biguanides, sulfonylureas, meglitinides, GLP-1 receptor agonists, PPAR-γ agonists, DDP4 inhibitors, and SGLT2 inhibitors. In this review we focus on the possible effects of SGLT2 inhibitors on different body systems. Beyond the diabetic state, SGLT2 inhibitors have revealed a demonstrable ability to ameliorate cardiac remodeling, enhance myocardial function, and lower heart failure mortality. Additionally, SGLT2 inhibitors can modify adipocytes and their production of cytokines, such as adipokines and adiponectin, which enhances insulin sensitivity and delays diabetes onset. On the other hand, SGLT2 inhibitors have been linked to decreased total hip bone mineral deposition and increased hip bone resorption in T2DM patients. More data are needed to evaluate the role of SGLT2 inhibitors on cancer. Finally, the effects of SGLT2 inhibitors on neuroprotection appear to be both direct and indirect, according to scientific investigations utilizing various experimental models. SGLT2 inhibitors improve vascular tone, elasticity, and contractility by reducing oxidative stress, inflammation, insulin signaling pathways, and endothelial cell proliferation. They also improve brain function, synaptic plasticity, acetylcholinesterase activity, and reduce amyloid plaque formation, as well as regulation of the mTOR pathway in the brain, which reduces brain damage and cognitive decline.
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Affiliation(s)
- Mahmoud E Youssef
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt
| | - Galal Yahya
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Al Sharqia 44519, Egypt
| | - Mihaela Simona Popoviciu
- Faculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410087 Oradea, Romania
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410087 Oradea, Romania
| | - Marwa A Abd-Eldayem
- Department of Pharmacology and Biochemistry, Faculty of Pharmacy, Horus University, New Damietta 34518, Egypt
| | - Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt
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2
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Saber S, El-Fattah EEA, Abdelhamid AM, Mourad AAE, Hamouda MAM, Elrabat A, Zakaria S, Haleem AA, Mohamed SZ, Elgharabawy RM, Morsy NE, El Adle Khalaf N, Mohammed OA, El-Bahouty WB, Mostafa SA, Abdelhady R, Galal O, ElSaid ZH, Yahya G, Shata A, Youssef ME. Innovative challenge for the inhibition of hepatocellular carcinoma progression by combined targeting of HSP90 and STAT3/HIF-1α signaling. Biomed Pharmacother 2023; 158:114196. [PMID: 36916405 DOI: 10.1016/j.biopha.2022.114196] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [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: 10/28/2022] [Revised: 12/18/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the third foremost cause of cancer-related deaths. HCC has a very bad prognosis because it is asymptomatic in the early stages, resulting in a late diagnosis, and it is highly resistant to conventional chemotherapy. Such chemotherapies have been proven disappointing because they provide extremely low survival benefits. This study discloses that the STAT3/HIF-1α is an auspicious therapeutic attack site for conceivable repression of HCC development. A site that can be targeted by simultaneous administration of a STAT3 inhibitor in the context of HSP90 inhibition. 17-DMAG binds to HSP90 and constrains its function, resulting in the degradation of HSP90 client proteins HIF-1α and STAT3. Hypoxia recruits STAT3/HIF-1α complex within the VEGF promoter. Additionally, it was acknowledged that STAT3 is an essential mediator of VEGF transcription by direct binding to its promoter. Furthermore, it induces HIF-1α stability and enhances its transcriptional activity. Herein, we revealed that the combination therapy using 17-DMAG and nifuroxazide, a STAT3 inhibitor, repressed the diethylnitrosamine-induced alterations in the structure of the liver. This effect was mediated via decreasing the levels of the HSP90 client proteins HIF-1α and pSTAT3 resulting in the suppression of the STAT3/HIF-1α complex transcriptional activity. To conclude, 17-DMAG/NFXZD combination therapy-induced disruption in the STAT3/HIF-1α loop led to a potential antiangiogenic activity and showed apoptotic potential by inhibiting autophagy and inducing ROS/apoptosis signaling. Additionally, this combination therapy exhibited promising survival prolongation in mice with HCC. Consequently, the use of 17-DMAG/NFXZD renders an inspirational perspective in managing HCC. However, further investigations are compulsory.
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Affiliation(s)
- Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt.
| | - Eslam E Abd El-Fattah
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt.
| | - Amir Mohamed Abdelhamid
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt.
| | - Ahmed A E Mourad
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Port-Said University, Port-Said 42511, Egypt.
| | | | - Amr Elrabat
- Gastroenterology and Hepatology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
| | - Sahar Zakaria
- Department of Tropical Medicine, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
| | - Amira A Haleem
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
| | - Sherin Z Mohamed
- Department of Internal Medicine, Faculty of Medicine, Horus University, New Damietta 34518, Egypt.
| | | | - Nesreen Elsayed Morsy
- Pulmonary Medicine Department, Mansoura University Sleep Center, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
| | - Noura El Adle Khalaf
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
| | - Osama A Mohammed
- Department of Clinical Pharmacology, Faculty of Medicine, Ain Shams University, Cairo 11566, Egypt.
| | | | - Sally Abdallah Mostafa
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
| | - Rasha Abdelhady
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Fayoum University, Fayoum, Egypt.
| | - Omneya Galal
- Department of Pharmacology, Faculty of Pharmacy, Ahram Canadian University, Giza 12451, Egypt.
| | - Zeinab H ElSaid
- Department of Medical Physiology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
| | - Galal Yahya
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Al Sharqia 44519, Egypt.
| | - Ahmed Shata
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt; Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt.
| | - Mahmoud E Youssef
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt.
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3
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El-Kashef DH, Youssef ME, Nasr M, Alrouji M, Alhajlah S, AlOmeir O, El Adle Khalaf N, Ghaffar DMA, Jamil L, Abdel-Nasser ZM, Ibrahim S, Abdeldaiem MSI, Donia SS, Mohammed OA, Morsy NE, Shata A, Saber S. Pimitespib, an HSP90 inhibitor, augments nifuroxazide-induced disruption in the IL-6/STAT3/HIF-1α autocrine loop in rats with bleomycin-challenged lungs: Evolutionary perspective in managing pulmonary fibrosis. Biomed Pharmacother 2022; 153:113487. [DOI: 10.1016/j.biopha.2022.113487] [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] [Received: 06/17/2022] [Revised: 07/15/2022] [Accepted: 07/27/2022] [Indexed: 11/02/2022] Open
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4
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Cavalu S, Sharaf H, Saber S, Youssef ME, Abdelhamid AM, Mourad AAE, Ibrahim S, Allam S, Elgharabawy RM, El-Ahwany E, Amin NA, Shata A, Eldegla M, Atef M, Aboraya M, Mohamed M, Anz N, Elmotelb DA, Gabr F, Elzablawy D, Hamada M, Yehia A, Osama D, Mohammed OA. Ambroxol, a mucolytic agent, boosts HO-1, suppresses NF-κB, and decreases the susceptibility of the inflamed rat colon to apoptosis: A new treatment option for treating ulcerative colitis. FASEB J 2022; 36:e22496. [PMID: 35947115 DOI: 10.1096/fj.202200749r] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [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: 05/17/2022] [Revised: 07/05/2022] [Accepted: 08/01/2022] [Indexed: 11/11/2022]
Abstract
Ulcerative colitis (UC) is a chronic inflammatory bowel disease of unknown etiology that increases the risk of developing colorectal cancer and imposes a lifelong healthcare burden on millions of patients worldwide. Current treatment strategies are associated with significant risks and have been shown to be fairly effective. Hence, discovering new therapies that have better efficacy and safety profiles than currently exploited therapeutic strategies is challenging. It has been well delineated that NF-κB/Nrf2 crosstalk is a chief player in the interplay between oxidative stress and inflammation. Ambroxol hydrochloride, a mucolytic agent, has shown antioxidant and anti-inflammatory activity in humans and animals and has not yet been examined for the management of UC. Therefore, our approach was to investigate whether ambroxol could be effective to combat UC using the common acetic acid rat model. Interestingly, a high dose of oral ambroxol (200 mg/kg/day) reasonably improved the microscopic and macroscopic features of the injured colon. This was linked to low disease activity and a reduction in the colonic weight/length ratio. In the context of that, ambroxol boosted Nrf2 activity and upregulated HO-1 and catalase to augment the antioxidant defense against oxidative damage. Besides, ambroxol inactivated NF-κB signaling and its consequent target pro-inflammatory mediators, IL-6 and TNF-α. In contrast, IL-10 is upregulated. Consistent with these results, myeloperoxidase activity is suppressed. Moreover, ambroxol decreased the susceptibility of the injured colon to apoptosis. To conclude, our findings highlight the potential application of ambroxol to modify the progression of UC by its anti-inflammatory, antioxidant, and antiapoptotic properties.
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Affiliation(s)
- Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
| | - Hossam Sharaf
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Mahmoud E Youssef
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Amir Mohamed Abdelhamid
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Ahmed A E Mourad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Port Said University, Port Said, Egypt
| | - Samar Ibrahim
- Department of Pharmacy Practice, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Shady Allam
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Menoufia University, Menoufia, Egypt
| | | | - Eman El-Ahwany
- Department of Immunology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Noha A Amin
- Department of Haematology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Ahmed Shata
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Mai Eldegla
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Marina Atef
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Maii Aboraya
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Mayar Mohamed
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Niera Anz
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Dina Abd Elmotelb
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Fayrouz Gabr
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Dalia Elzablawy
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Menna Hamada
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Amr Yehia
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Dalia Osama
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Osama A Mohammed
- Department of Clinical Pharmacology, Faculty of Medicine, Ain Shams University, Cairo, Egypt.,Department of Clinical Pharmacology, Faculty of medicine, Bisha University, Bisha, Saudi Arabia
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5
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Nasr M, Cavalu S, Saber S, Youssef ME, Abdelhamid AM, Elagamy HI, Kamal I, Gaafar AGA, El-Ahwany E, Amin NA, Girgis S, El-Sandarosy R, Mahmoud F, Rizk H, Mansour M, Hasaballah A, El-Rafi AA, El-Azez RA, Essam M, Mohamed D, Essam N, Mohammed OA. Canagliflozin-loaded chitosan-hyaluronic acid microspheres modulate AMPK/NF-κB/NLRP3 axis: A new paradigm in the rectal therapy of ulcerative colitis. Biomed Pharmacother 2022; 153:113409. [DOI: 10.1016/j.biopha.2022.113409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/03/2022] [Accepted: 07/11/2022] [Indexed: 12/27/2022] Open
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6
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Abdelhamid AM, Youssef ME, Cavalu S, Mostafa-Hedeab G, Youssef A, Elazab ST, Ibrahim S, Allam S, Elgharabawy RM, El-Ahwany E, Amin NA, Shata A, Mohammed OA, Ibrahim Abdeldaiem MS, Alhowail A, El-Saber Batiha G, El-Mahmoudy EA, Attia M, Allam A, Zaater MY, Osman MM, Nader M, Taha A, Makarem NA, Saber S. Carbocisteine as a Modulator of Nrf2/HO-1 and NFκB Interplay in Rats: New Inspiration for the Revival of an Old Drug for Treating Ulcerative Colitis. Front Pharmacol 2022; 13:887233. [PMID: 35754464 PMCID: PMC9214041 DOI: 10.3389/fphar.2022.887233] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [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: 03/01/2022] [Accepted: 05/18/2022] [Indexed: 12/29/2022] Open
Abstract
Ulcerative colitis (UC), an inflammatory bowel disease, is a chronic condition of a multifaceted pathophysiology. The incidence of UC is increasing internationally. The current therapies for UC lack relative effectiveness and are associated with adverse effects. Therefore, novel therapeutic options should be developed. It has been well documented that modulating the Nrf2/NFκB is a promising therapeutic target in inflammation. Carbocisteine is a mucoregulatory medication and its efficacy in COPD was found to be more closely related to its antioxidant and anti-inflammatory properties. Carbocisteine has not yet been examined for the management of UC. Hence, our approach was to investigate the potential coloprotective role of carbocisteine in acetic acid-induced colitis in rats. Our results revealed that carbocisteine improved colon histology and macroscopic features and subdued the disease activity as well. Additionally, carbocisteine attenuated colon shortening and augmented colon antioxidant defense mechanisms via upregulating catalase and HO-1 enzymes. The myeloperoxidase activity was suppressed indicating inhibition of the neutrophil infiltration and activation. Consistent with these findings, carbocisteine boosted Nrf2 expression along with NFκB inactivation. Consequently, carbocisteine downregulated the proinflammatory cytokines IL-6 and TNF-α and upregulated the anti-inflammatory cytokine IL-10. Concomitant to these protective roles, carbocisteine displayed anti-apoptotic properties as revealed by the reduction in the Bax: BCL-2 ratio. In conclusion, carbocisteine inhibited oxidative stress, inflammatory response, and apoptosis in acetic acid-induced UC by modulating the Nrf2/HO-1 and NFκB interplay in rats. Therefore, the current study provides a potential basis for repurposing a safe and a commonly used mucoregulator for the treatment of UC.
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Affiliation(s)
- Amir Mohamed Abdelhamid
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Mahmoud E Youssef
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
| | - Gomaa Mostafa-Hedeab
- Pharmacology Department and Health Research Unit, Medical College, Jouf University, Sakakah, Saudi Arabia.,Pharmacology Department, Faculty of Medicine, Beni-Suef University, Beni Suef, Egypt
| | - Amal Youssef
- Medical Pharmacology Department, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Sara T Elazab
- Department of Pharmacology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Samar Ibrahim
- Department of Pharmacy Practice, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Shady Allam
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Menoufia University, Menoufia, Egypt
| | | | - Eman El-Ahwany
- Department of Immunology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Noha A Amin
- Department of Haematology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Ahmed Shata
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Osama A Mohammed
- Department of Clinical Pharmacology, Faculty of Medicine, Ain Shams University, Cairo, Egypt.,Department of Clinical Pharmacology, Faculty of Medicine, Bisha University, Bisha, Saudi Arabia
| | - Mahmoud Said Ibrahim Abdeldaiem
- Clinical Pharmacy Department, School of Pharmaceutical Sciences, Universiti Sains Malaysia, George Town, Malaysia.,Pharmacy Practice Department, Faculty of Pharmacy, Sinai University, Ismailia, Egypt
| | - Ahmed Alhowail
- Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Buraidah, Saudi Arabia
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Engy A El-Mahmoudy
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Maram Attia
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Alaa Allam
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Mona Y Zaater
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Mona M Osman
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Manar Nader
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Aya Taha
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Nada Abul Makarem
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
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7
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El-Azab MF, Wakiel AE, Nafea YK, Youssef ME. Role of cannabinoids and the endocannabinoid system in modulation of diabetic cardiomyopathy. World J Diabetes 2022; 13:387-407. [PMID: 35664549 PMCID: PMC9134026 DOI: 10.4239/wjd.v13.i5.387] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/18/2021] [Accepted: 04/28/2022] [Indexed: 02/06/2023] Open
Abstract
Diabetic complications, chiefly seen in long-term situations, are persistently deleterious to a large extent, requiring multi-factorial risk reduction strategies beyond glycemic control. Diabetic cardiomyopathy is one of the most common deleterious diabetic complications, being the leading cause of mortality among diabetic patients. The mechanisms of diabetic cardiomyopathy are multi-factorial, involving increased oxidative stress, accumulation of advanced glycation end products (AGEs), activation of various pro-inflammatory and cell death signaling pathways, and changes in the composition of extracellular matrix with enhanced cardiac fibrosis. The novel lipid signaling system, the endocannabinoid system, has been implicated in the pathogenesis of diabetes and its complications through its two main receptors: Cannabinoid receptor type 1 and cannabinoid receptor type 2, alongside other components. However, the role of the endocannabinoid system in diabetic cardiomyopathy has not been fully investigated. This review aims to elucidate the possible mechanisms through which cannabinoids and the endocannabinoid system could interact with the pathogenesis and the development of diabetic cardiomyopathy. These mechanisms include oxidative/ nitrative stress, inflammation, accumulation of AGEs, cardiac remodeling, and autophagy. A better understanding of the role of cannabinoids and the endocannabinoid system in diabetic cardiomyopathy may provide novel strategies to manipulate such a serious diabetic complication.
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Affiliation(s)
- Mona F El-Azab
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Ahmed E Wakiel
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Yossef K Nafea
- Program of Biochemistry, McMaster University, Hamilton L8S 4L8, Ontario, Canada
| | - Mahmoud E Youssef
- Department of Pharmacology and Biochemistry, Delta University for Science and Technology, Mansoura 35511, New Cairo, Egypt
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8
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Youssef ME, El-Azab MF, Abdel-Dayem MA, Yahya G, Alanazi IS, Saber S. Electrocardiographic and histopathological characterizations of diabetic cardiomyopathy in rats. Environ Sci Pollut Res Int 2022; 29:25723-25732. [PMID: 34845640 DOI: 10.1007/s11356-021-17831-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [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: 09/09/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
Diabetes is a clinical condition that is associated with insulin deficiency and hyperglycemia. Cardiomyopathy, retinopathy, neuropathy, and nephropathy are well known complications of the elevated blood glucose. Diabetic cardiomyopathy is a clinical disorder that is associated with systolic and diastolic dysfunction along with cardiac fibrosis, inflammation, and elevated oxidative stress. In this study, diabetes was induced by intraperitoneal injection of streptozotocin (STZ) 50 mg/kg. We determined the plasma levels of cardiac troponin-T (cTnT) and creatinine kinase MB (CK-MB) by ELISA. Diabetic rats showed abnormal cardiac architecture and increased collagen production. Significant elevation in ST-segment, prolonged QRS, and QT-intervals and increased ventricular rate were detected. Additionally, diabetic rats showed a prolongation in P wave duration and atrial tachyarrhythmia was observed. Plasma levels of cTnT and CK-MB were elevated. In conclusion, these electrocardiographic changes (elevated ST-segment, prolonged QT interval, and QRS complex, and increased heart rate) along with histopathological changes and increased collagen formation could be markers for the development of diabetic cardiomyopathy in rats.
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Affiliation(s)
- Mahmoud E Youssef
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology Gamasa, Talkha, Egypt
| | - Mona F El-Azab
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Marwa A Abdel-Dayem
- Department of Pharmacology and Biochemistry, Faculty of Pharmacy, Horus University, New Damietta, Egypt
| | - Galal Yahya
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Al Sharqia, 44519, Egypt.
| | - Ibtesam S Alanazi
- Department of Biology, Faculty of Sciences, University of Hafr Al Batin, Hafr Al Batin, Saudi Arabia
| | - Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology Gamasa, Talkha, Egypt
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9
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Zohny MH, Cavalu S, Youssef ME, Kaddah MM, Mourad AA, Gaafar AGA, El-Ahwany E, Amin NA, Arakeep HM, Shata A, Saleh S, Hafez MM, Elazab ST, Abdelhady R, El Shahat RM, Yahya G, Saber S. Coomassie brilliant blue G-250 dye attenuates bleomycin-induced lung fibrosis by regulating the NF-κB and NLRP3 crosstalk: A novel approach for filling an unmet medical need. Pharmacotherapy 2022; 148:112723. [DOI: 10.1016/j.biopha.2022.112723] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/08/2022] [Accepted: 02/15/2022] [Indexed: 02/06/2023]
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10
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Abd El-Fattah EE, Saber S, Youssef ME, Eissa H, El-Ahwany E, Amin NA, Alqarni M, Batiha GES, Obaidullah AJ, Kaddah MMY, Ahmed Gaafar AG, Mourad AAE, Mostafa-Hedeab G, Abdelhamid AM. AKT-AMPKα-mTOR-dependent HIF-1α Activation is a New Therapeutic Target for Cancer Treatment: A Novel Approach to Repositioning the Antidiabetic Drug Sitagliptin for the Management of Hepatocellular Carcinoma. Front Pharmacol 2022; 12:720173. [PMID: 35095479 PMCID: PMC8790251 DOI: 10.3389/fphar.2021.720173] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 06/03/2021] [Accepted: 12/21/2021] [Indexed: 12/20/2022] Open
Abstract
HIF-1α is a key factor promoting the development of hepatocellular carcinoma (HCC). As well, AKT-AMPKα-mTOR signaling is a promising target for cancer therapy. Yet, the AKT-AMPKα-mTOR-dependent activation of HIF-1α has not been studied in livers with HCC. In addition, the mechanisms underlying the potential antineoplastic effects of sitagliptin (STGPT), an antidiabetic agent, have not yet been elucidated. For that purpose, the N-nitrosodiethylamine (NDEA)-induced HCC mouse model was used in the present study using a dose of 100 mg/kg/week, i.p., for 8 weeks. NDEA-induced HCC mice received STGPT 20, 40, or 80 mg/kg starting on day 61 up to day 120. The present study revealed that STGPT inhibited HIF-1α activation via the interference with the AKT-AMPKα-mTOR axis and the interruption of IKKβ, P38α, and ERK1/2 signals as well. Accordingly, STGPT prolonged the survival, restored the histological features and improved liver function. Additionally, STGPT inhibited angiogenesis, as revealed by a significant downregulation in the VEGF and mRNA expression of CD309 with concomitant inhibition of tissue invasion was evident by an increased ratio of TIMP-1/MMP-2. STGPT exhibited apoptotic stimulatory effect as indicated upon calculating the BCL-2/Bax ratio and by the gene expression of p53. The decrease in AFP and liver index calculation, gene expression of Ki-67 confirmed the antiproliferative activity of STGPT. The anti-inflammatory potential was revealed by the decreased TNF-α level and the downregulation of MCP-1 gene expression. Moreover, an antifibrotic potential was supported by lower levels of TGF-β. These effects appear to be GLP1R-independent. The present study provides a potential basis for repurposing STGPT for the inhibition of HCC progression. Since STGPT is unlikely to cause hypoglycemia, it may be promising as monotherapy or adjuvant therapy to treat diabetic or even normoglycemic patients with HCC.
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Affiliation(s)
- Eslam E Abd El-Fattah
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Mahmoud E Youssef
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Hanan Eissa
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Eman El-Ahwany
- Department of Immunology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Noha A Amin
- Department of Hematology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Mohammed Alqarni
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, Taif, Saudi Arabia
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Ahmad J Obaidullah
- Drug Exploration and Development Chair (DEDC), Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.,Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed M Y Kaddah
- Pharmaceutical and Fermentation Industries Development Center, City of Scientific Research and Technological Applications, New Borg El-Arab, Egypt
| | - Ahmed Gaafar Ahmed Gaafar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Port Said University, Port Said, Egypt
| | - Ahmed A E Mourad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Port Said University, Port Said, Egypt
| | - Gomaa Mostafa-Hedeab
- Pharmacology Department and Health Research Unit, Medical College, Jouf University, Jouf, Saudi Arabia.,Pharmacology Department, Faculty of Medicine, Beni-Suef University, Beni Suef, Egypt
| | - Amir Mohamed Abdelhamid
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
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11
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Abdelhamid AM, Saber S, Youssef ME, Gaafar AGA, Eissa H, Abd-Eldayem MA, Alqarni M, Batiha GES, Obaidullah AJ, Shahien MA, El-Ahwany E, Amin NA, Etman MA, Kaddah MMY, Abd El-Fattah EE. Empagliflozin adjunct with metformin for the inhibition of hepatocellular carcinoma progression: Emerging approach for new application. Biomed Pharmacother 2021; 145:112455. [PMID: 34844106 DOI: 10.1016/j.biopha.2021.112455] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [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: 10/11/2021] [Revised: 11/05/2021] [Accepted: 11/16/2021] [Indexed: 02/08/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is on the rise worldwide, and its incidence in diabetic patients is two to three times that of non-diabetics. Current therapeutic options fail to provide considerable survival benefits to patients with HCC. There is a strong possibility that the FDA-approved antidiabetic combination of empagliflozin and metformin could show complementary effects to control HCC progression. However, their multitarget effects have not yet been studied on HCC development. Therefore, the present study aims to evaluate the antitumorigenic activity of this combination in non-diabetic mice with diethylnitrosamine-induced HCC. Empagliflozin/metformin combination prolonged survival and improved histological features of mice livers. Additionally, Empagliflozin/metformin showed anti-inflammatory potential and relieved oxidative stress. On the one hand these effects are likely attributed to the ability of metformin to inactivate NF-κB in an AMPK-dependent mechanism and on the other hand to the ability of the empagliflozin to inhibit the MAPKs, p38 and ERK1/2. Empagliflozin also showed a less robust effect on AMPK than that of metformin. Moreover, empagliflozin enhanced the autophagy inducing activity of metformin. Furthermore, empagliflozin/metformin exhibited increased apoptotic potential. Consequently, empagliflozin augmented the antitumorigenic function of metformin by exerting better control of angiogenesis, and metastasis. To conclude, our findings suggest empagliflozin as an ideal adjunct to metformin for the inhibition of HCC progression. In addition, since the incidence of hypoglycemia is minimal due to insulin-independent mechanism of action of both treatments, empagliflozin/metformin could be a promising therapeutic modality for the management of diabetic patients with HCC; and even non diabetic ones.
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Affiliation(s)
- Amir Mohamed Abdelhamid
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt.
| | - Mahmoud E Youssef
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Ahmed Gaafar Ahmed Gaafar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Port Said University, Port Said, Egypt
| | - Hanan Eissa
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Marwa A Abd-Eldayem
- Department of Pharmacology and Biochemistry, Faculty of Pharmacy, Horus University, New Damietta, Egypt
| | - Mohammed Alqarni
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, AlBeheira, Egypt
| | - Ahmad J Obaidullah
- Drug Exploration and Development Chair (DEDC), Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed Awad Shahien
- Department of Clinical Pharmacology, Faculty of Medicine, Damietta University, Damietta, Egypt
| | - Eman El-Ahwany
- Department of Immunology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Noha A Amin
- Department of Hematology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Mohamed Ali Etman
- Research and Development, Department of Drug Stability, Safe Pharma, Pharco Pharmaceuticals, Alexandria, Egypt
| | - Mohamed M Y Kaddah
- Pharmaceutical and Fermentation Industries Development Center, City of Scientific Research and Technological Applications, New Borg El-Arab 21934, Alexandria, Egypt
| | - Eslam E Abd El-Fattah
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
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12
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Youssef ME, Abd El-Fattah EE, Abdelhamid AM, Eissa H, El-Ahwany E, Amin NA, Hetta HF, Mahmoud MH, Batiha GES, Gobba N, Ahmed Gaafar AG, Saber S. Interference With the AMPKα/mTOR/NLRP3 Signaling and the IL-23/IL-17 Axis Effectively Protects Against the Dextran Sulfate Sodium Intoxication in Rats: A New Paradigm in Empagliflozin and Metformin Reprofiling for the Management of Ulcerative Colitis. Front Pharmacol 2021; 12:719984. [PMID: 34489707 PMCID: PMC8417441 DOI: 10.3389/fphar.2021.719984] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [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: 06/03/2021] [Accepted: 07/26/2021] [Indexed: 12/20/2022] Open
Abstract
Empagliflozin and metformin are widely used for the treatment of type 2 diabetes. These drugs showed marked anti-inflammatory effects in different animal models via enhancing AMPK activity. Yet, the protective anti-inflammatory effects of their combination against ulcerative colitis have not been previously investigated. The current study aimed to explore the potential of empagliflozin/metformin combination to mitigate the DSS-induced rat colitis model. The modulating effects of empagliflozin and metformin on the AMPK/mTOR/NLRP3 axis and T cell polarization were delineated. In this study, distal colons were examined for macroscopic and microscopic pathological alterations. ELISA, qRT-PCR, and immunohistochemistry techniques were applied to detect proteins and cytokines involved in AMPK/mTOR/NLRP3 axis and T Cell polarization. Oral administration of empagliflozin (10 mg/kg/day) and metformin (200 mg/kg/day) combination alleviated colitis as revealed by the reduced disease activity index, macroscopic damage index, colon weight/length ratio, and histopathologic scoring values. Interestingly, empagliflozin/metformin combination significantly enhanced AMPK phosphorylation and depressed mTOR and NLRP3 expression leading to a subsequent reduction in caspase-1 cleavage and inhibition of several inflammatory cytokines, including IL-1β, and IL-18. Reduced mTOR expression and reduced IL-6 levels led to a reduction in Th17 cell polarization and maintenance. Together, the current study reveals that the protective effects of empagliflozin and metformin against DSS-induced colitis are fundamentally mediated via enhancing AMPK phosphorylation. Since adult humans with diabetes mellitus are at greater risk for developing inflammatory bowel diseases, clinical application of empagliflozin/metformin combination represents a novel therapeutic approach for treating diabetic patients with ulcerative colitis.
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Affiliation(s)
- Mahmoud E Youssef
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Eslam E Abd El-Fattah
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Amir M Abdelhamid
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Hanan Eissa
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Eman El-Ahwany
- Department of Immunology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Noha A Amin
- Department of Hematology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Helal F Hetta
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt.,Department of Internal Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH, United States
| | - Mohamed H Mahmoud
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Naglaa Gobba
- Department of Pharmacology and Toxicology, College of Pharmacy, Misr University for Science and Technology, 6th of October City, Egypt
| | - Ahmed Gaafar Ahmed Gaafar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Port-Said University, Port-Said, Egypt
| | - Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
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13
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Saber S, Yahya G, Gobba NA, Sharaf H, Alshaman R, Alattar A, Amin NA, El-Shedody R, Aboutouk FH, Abd El-Galeel Y, El-Hefnawy A, Shabaka D, Khalifa A, Saleh R, Osama D, El-Zoghby G, Youssef ME. The Supportive Role of NSC328382, a P2X7R Antagonist, in Enhancing the Inhibitory Effect of CRID3 on NLRP3 Inflammasome Activation in Rats with Dextran Sodium Sulfate-Induced Colitis. J Inflamm Res 2021; 14:3443-3463. [PMID: 34321905 PMCID: PMC8313402 DOI: 10.2147/jir.s315938] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [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: 04/17/2021] [Accepted: 07/05/2021] [Indexed: 12/17/2022] Open
Abstract
Purpose The NLRP3 inflammasome is a substantial component of the inflammation process. The complex pathogenesis of and the implication of a vast number of components in the inflammasome-activation pathway prompted us to search for compounds that have a wide therapeutic index and act at the level of multiple cellular targets. Although CRID3 blocks NLRP3 with high specificity in the laboratory, clinical trials of the compound reported weaker potency. Methods We used NSC328382, a P2X7R antagonist, as an adjunctive therapy and generated a strategy to potentiate the effects of CRID3 in rats with DSS-induced colitis. Results NSC328382/CRID3 combined therapy exhibited a significantly increased efficacy compared with either of the monotherapies. NSC328382/CRID3 was more efficient in 1) attenuating colon shortening and disease activity; 2) improving goblet cell density and both the macroscopic and microscopic scenario of the injured colon; 3) improving the antioxidant defense mechanisms of the inflamed colon against oxidative stress; and 4) mitigating the inflammation state by downregulating the proinflammatory cytokines. Pyroptotic cell death was also conspicuously restrained. Additionally, NSC328382 interrupted the MyD88/NF-κB axis. Moreover, NSC328382/CRID3 exhibited the ability to alter Th1/Th2 dominance. Conclusion The clinical application of NSC328382/CRID3 may result in the generation of a novel approach for the treatment of IBDs.
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Affiliation(s)
- Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Galal Yahya
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Al Sharqia, Egypt
| | - Naglaa A Gobba
- Department of Pharmacology and Toxicology, College of Pharmacy, Misr University for Science and Technology, Cairo, Egypt
| | - Hossam Sharaf
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Reem Alshaman
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
| | - Abdullah Alattar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
| | - Noha A Amin
- Department of Haematology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Ruwyda El-Shedody
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Farah H Aboutouk
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Yumna Abd El-Galeel
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Amr El-Hefnawy
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Dina Shabaka
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Arwa Khalifa
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Renad Saleh
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Donya Osama
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Ghada El-Zoghby
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Mahmoud E Youssef
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
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14
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Youssef ME, El-Mas MM, Abdelrazek HM, El-Azab MF. α7-nAChRs-mediated therapeutic angiogenesis accounts for the advantageous effect of low nicotine doses against myocardial infarction in rats. Eur J Pharmacol 2021; 898:173996. [PMID: 33684450 DOI: 10.1016/j.ejphar.2021.173996] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/26/2021] [Accepted: 02/28/2021] [Indexed: 12/20/2022]
Abstract
Angiogenesis accelerates tissue regeneration in a variety of ischemic conditions including myocardial infarction (MI). Here we tested the hypothesis that angiogenesis induced by α7-nicotinic acetylcholine receptors (α7-nAChRs) mitigates histopathological, electrocardiographic, and molecular consequences of MI in rats. These profiles were evaluated in the isoprenaline (85 mg/kg/day i. p. For 2 days) MI rat model treated with or without nicotine or PHA-543613 (PHA, selective α7-nAChR agonist). Isoprenaline-insulted rats showed (i) ECG signs of MI such as significant ST-segment elevations and prolonged QT-intervals, (ii) deteriorated left ventricular histopathological scoring and elevated inflammatory cell infiltration, (iii) reduced immunohistochemical expression of cardiac CD34, a surrogate marker of capillary density, (iv) decreased cardiac expression of iNOS and α7-nAChRs, and (v) adaptive increases in cardiac HO-1 expression and plasma angiogenic markers such as vascular endothelial growth factor (VEGF) and nitric oxide (NO). These effects of isoprenaline, except cardiac iNOS and α7-nAChRs downregulation, were ameliorated in rats treated with a low dose (20 μg/kg/day s. c. For 16 days) of nicotine or PHA. We also show that concurrent α7-nAChR blockade by methyllycaconitine (MLA, 40 μg/kg/day, for 16 days) reversed the ECG, histopathological, and capillary density effects of nicotine, thereby reinforcing the advantageous cardioprotective and anti-ischemic roles of α7-nAChRs in this setting. The observed results showed promising effects on isoprenaline induced myocardial damage. In conclusion, the activation of α7-nAChRs by doses of nicotine or PHA in the microgram scale promotes neovascularization and offers a promising therapeutic strategy for MI. CATEGORY: Cardiovascular Pharmacology.
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Affiliation(s)
- Mahmoud E Youssef
- Department of Pharmacology and Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Mahmoud M El-Mas
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt; Department of Pharmacology and Toxicology, Faculty of Medicine, Kuwait University, Kuwait
| | - Heba M Abdelrazek
- Department of Physiology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Mona F El-Azab
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt.
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15
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Saber S, Youssef ME, Sharaf H, Amin NA, El-Shedody R, Aboutouk FH, El-Galeel YA, El-Hefnawy A, Shabaka D, Khalifa A, Saleh RA, Osama D, El-Zoghby G, Gobba NA. BBG enhances OLT1177-induced NLRP3 inflammasome inactivation by targeting P2X7R/NLRP3 and MyD88/NF-κB signaling in DSS-induced colitis in rats. Life Sci 2021; 270:119123. [PMID: 33548287 DOI: 10.1016/j.lfs.2021.119123] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [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: 12/01/2020] [Revised: 01/13/2021] [Accepted: 01/18/2021] [Indexed: 02/07/2023]
Abstract
Chronic ulceration of the colon is associated with the activation of TLR4/NF-κB and P2X7R/NLRP3 signaling pathways. We investigated the effect of individual or combined administration of BBG, a P2X7R blocker, and OLT1177, a selective NLRP3 inhibitor, in the dextran sodium sulfate-induced ulcerative colitis (UC) rat model. The ulcerative rats were treated orally with brilliant blue G (BBG) (50 mg/kg/day) or OLT1177 (200 mg/kg/day) or a combination of both. Myd88 and NF-κB levels were measured by ELISA, qRT-PCR, and immunohistochemical staining. Cytokines known to be associated with TLR4/NF-κB or P2X7R/NLRP3 signaling were measured by ELISA. P2X7R and NLRP3 expression were measured by ELISA and qRT-PCR. The administration of BBG or OLT1177 ameliorated the toxic effects of DSS on the colon as they restored normal colonic macroscopic and microscopic morphology. BBG administration, but not OLT1177, reduced the expression of Myd88, NF-κB, IL-6, and TNF-α in addition to lowering P2X7R and oxidative stress levels. Individual BBG or OLT1177 administration decreased NLRP3 inflammasome recruitment and subsequent activation of caspase-1, IL-1β, and IL-18. However, the combined administration of OLT1177 with BBG potentiated its inhibitory effect on the NLRP3, which was reflected by the additional suppressive effect on caspase-1, IL-1β, IL-18 levels. In conclusion, BBG/OLT1177 exhibited complementary effects and effectively ameliorated UC. This novel approach provides a basis for the clinical application of this combination for the treatment of IBDs and might also be promising for the pharmacological intervention of other NLRP3 inflammasome-dependent inflammatory conditions.
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Affiliation(s)
- Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt.
| | - Mahmoud E Youssef
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Hossam Sharaf
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Noha A Amin
- Department of Haematology, Theodor Bilharz Research Institute, Egypt
| | - Ruwyda El-Shedody
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Farah H Aboutouk
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Yumna Abd El-Galeel
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Amr El-Hefnawy
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Dina Shabaka
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Arwa Khalifa
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Renad A Saleh
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Donya Osama
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Ghada El-Zoghby
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Naglaa A Gobba
- Department of Pharmacology and Toxicology, College of Pharmacy, Misr University for Science and Technology, Egypt
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16
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Youssef ME, Abdelrazek HM, Moustafa YM. Cardioprotective role of GTS-21 by attenuating the TLR4/NF-κB pathway in streptozotocin-induced diabetic cardiomyopathy in rats. Naunyn Schmiedebergs Arch Pharmacol 2021; 394:11-31. [PMID: 32776158 DOI: 10.1007/s00210-020-01957-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 05/20/2020] [Accepted: 07/30/2020] [Indexed: 12/13/2022]
Abstract
The cholinergic anti-inflammatory pathway (CAP) was investigated in a variety of inflammatory conditions and constitutes a valuable line in their treatment. In the current study, we investigated the anti-inflammatory effect of GTS-21 (GTS) as a partial selective α7 nicotinic acetylcholine receptor (α7-nAchR) agonist in diabetic cardiomyopathy model in rats. This mechanism was elaborated to study whether it could alleviate the electrocardiographic, histopathological, and molecular levels of Toll-like receptor 4 (TLR4)/nuclear factor κB (NF-κB) pathway proteins. Diabetes was induced by the injection of streptozotocin (STZ) (50 mg/kg). Diabetic rats were treated with GTS (1 or 2 mg/kg/day), methyllycaconitine (MLA), a selective α7-nAchR antagonist (2 mg/kg/day) plus GTS (2 mg/kg/day), or the vehicle. All treatments were given by the intraperitoneal route. Ventricular rate and different electrocardiograph (ECG) anomalies were detected. Plasma levels of cardiac troponin T (cTnT) and creatine kinase MB (CK-MB) were measured by ELISA. Additionally, we elucidated the levels of several proteins involved in the TLR4/NF-κB pathway. Cardiac levels of TLR4 and phosphorylated protein kinase B (p-Akt) were detected by ELISA. The cardiac expression of myeloid differentiation primary response 88 (Myd88), tumor necrosis factor receptor-associated factor 6 (TRAF6), NF-κB, interleukin 1β (IL-1β), and active caspase-1 were evaluated by immunohistochemical staining. Finally, the cardiac levels of interleukin 6 (IL-6) and tumor necrosis factor α (TNF-α) were determined by ELISA. Diabetic rats showed (i) ECG signs of cardiomyopathy such as significant ST segment elevations, prolonged QRS, QT intervals, and ventricular tachycardia; (ii) increased plasma levels of cTnT and CK-MB; (iii) increased expression of cardiac TLR4; (iv) elevated immunohistochemical expression of cardiac, Myd88, TRAF6, and NF-κB; (v) diminution in the cardiac expression of p-Akt; and (vi) adaptive increases in cardiac expression of TNF-α and IL-6. These effects were ameliorated in diabetic rats treated with both doses of GTS. Pretreatment with MLA did not completely reverse the ameliorative effect of GTS on cTnT, TRAF6, TNF-α, and IL-6, thereby reinforcing the presence of possible α7-nAchR-independent mechanisms. The activation of α7-nAchR with GTS offers a promising prophylactic strategy for diabetic cardiomyopathy by attenuating the TLR4/NF-κB pathway.
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Affiliation(s)
- Mahmoud E Youssef
- Department of pharmacology and biochemistry, Faculty of pharmacy, Delta University for Science and Technology, Mansoura, Egypt.
| | - Heba M Abdelrazek
- Department of Physiology, Faculty of veterinary medicine, Suez Canal University, Ismailia, Egypt
| | - Yasser M Moustafa
- Department of Pharmacology and Toxicology, Dean of the Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
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17
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Youssef ME, El‐Mas MM, Abdelrazek HM, El‐Azab MF. α7‐nAChR‐Mediated Therapeutic Angiogenesis Accounts for the Advantageous Effect of Low Nicotine Doses Against Myocardial Infarction in Rats. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.679.1] [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: 11/11/2022]
Affiliation(s)
- Mahmoud E Youssef
- Pharmacology and Toxicology, Faculty of PharmacySuez Canal UniversityIsmaileyaEgypt
| | - Mahmoud M El‐Mas
- Pharmacology and Toxicology, Faculty of PharmacyAlexandria UniversityAlexandriaEgypt
| | - Heba M Abdelrazek
- Physiology, Faculty of Veterinary MedicineSuez Canal UniversityIsmaileyaEgypt
| | - Mona F El‐Azab
- Pharmacology and Toxicology, Faculty of PharmacySuez Canal UniversityIsmaileyaEgypt
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18
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Bennett-Guerrero E, Barclay GR, Youssef ME, Hossain S, Vela-Cantos F, Andres LA, Poxton IR. Exposure to bacteroides fragilis endotoxin during cardiac surgery. Anesth Analg 2000; 90:819-23. [PMID: 10735782 DOI: 10.1097/00000539-200004000-00009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 11/25/2022]
Abstract
UNLABELLED Although endotoxemia has been observed during cardiac surgery, the identity of endotoxins to which patients are exposed is unknown. We tested the hypothesis that antibodies to Bacteroides fragilis (an anaerobic gut commensal and a common pathogen) decrease during cardiac surgery, thereby reflecting systemic exposure to this type of endotoxin. Serum antiendotoxin antibody levels were measured in 55 patients during routine cardiac surgery at the following times: Preoperatively, Pre-CPB (immediately before initiation of cardiopulmonary bypass [CPB]), Pre-CPB+5 (5 min after initiation of CPB), and End (end of surgery). Antiendotoxin antibody levels were determined by using enzyme-linked immunosorbent assay. Total immunoglobulin M (IgM) levels were measured by using laser nephelometry and decreases in total IgM levels were used to control changes in antiendotoxin antibody levels attributable to hemodilution. Median (interquartile range) hemodilution corrected IgM anti-B fragilis antibody levels decreased by 12% (5%-20%) from Preoperatively to End of surgery (P < 0.001). In contrast, median hemodilution corrected anti-B fragilis antibody levels did not change significantly from Pre-CPB to Pre-CPB+5, validating the correction for hemodilution. Immunoglobulin G anti-B fragilis antibody levels and IgM and immunoglobulin G anticore antibody levels decreased similarly during surgery. Intraoperatively, levels of anti-B fragilis endotoxin antibodies decreased significantly out of proportion to hemodilution. These results suggest that cardiac surgical patients are exposed to B fragilis endotoxin. IMPLICATIONS We prospectively measured hemodilution-corrected antiendotoxin antibody levels in 55 cardiac surgical patients. We observed significant decreases in hemodilution-corrected levels of antibody to both Bacteroides fragilis and the core of endotoxin.
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Affiliation(s)
- E Bennett-Guerrero
- Departments of Anesthesiology and Biomathematics, The Mount Sinai School of Medicine, New York, New York, USA.
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19
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Fink MP, O'Sullivan BP, Menconi MJ, Wollert PS, Wang H, Youssef ME, Fleisch JH. A novel leukotriene B4-receptor antagonist in endotoxin shock: a prospective, controlled trial in a porcine model. Crit Care Med 1993; 21:1825-37. [PMID: 8252886 DOI: 10.1097/00003246-199312000-00008] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.3] [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: 01/29/2023]
Abstract
OBJECTIVE To evaluate the hypothesis that treatment with LY255283, a novel leukotriene B4-receptor antagonist, is beneficial in an animal model of the adult respiratory distress syndrome induced by endotoxin. DESIGN Prospective, randomized, controlled trial. SETTING Laboratory at a large university medical center. SUBJECTS Twenty-five, immature, random-bred swine. INTERVENTIONS Four groups of pigs were studied: the LPS group of animals (n = 6) were infused with Escherichia coli lipopolysaccharide (strain 0111:B4, 250 micrograms/kg) from 0 to 60 mins; the LPS + 255283 group of animals (n = 6) were infused with lipopolysaccharide as above, but were also treated with LY255283 (30 mg/kg, then 10 mg/kg/hr), beginning at -15 mins; the 255283 group of animals (n = 6) were infused with the same dose of LY255283, but were not challenged with lipopolysaccharide; and the RL control group of subjects (n = 7) received only the lactated Ringer's solution vehicle. Beginning at 30 mins, all groups were infused with dextran-70 solution as needed to maintain cardiac output at 90% to 110% of baseline value. MEASUREMENTS AND MAIN RESULTS Treatment with LY255283 significantly (p < .05) ameliorated lipopolysaccharide-induced systemic arterial hypotension, pulmonary arterial hypertension, and arterial hypoxemia. Treatment with this drug also abrogated lipopolysaccharide-induced increases in pulmonary extravascular water content and bronchoalveolar lavage fluid protein concentration. CONCLUSIONS These data suggest that leukotriene B4 may be an important mediator of acute lung injury in this porcine model of septic shock and acute lung injury. Further studies to assess the specificity of LY255283 as a leukotriene B4 antagonist are necessary in order to exclude the possibility that the beneficial effects of this compound are due to pharmacologic actions other than the blockade of LTB4 receptors.
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Affiliation(s)
- M P Fink
- Department of Surgery, University of Massachusetts Medical Center, Worcester
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20
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Youssef ME. Profile of toxoplasmosis in two different localities in Dakahlia Governorate. J Egypt Soc Parasitol 1993; 23:423-30. [PMID: 8376859] [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: 01/30/2023]
Abstract
The profile of toxoplasmosis was studied among the inhabitants of two different localities in Dakahlia in relation to age, sex, occupation and contact with animals and/or birds. The total percentage of seropositive Toxoplasma antibodies using Dot-ELISA was 23.8%. The seropositivity rate was higher among the inhabitants of the village particularly in those in contact with farm animals. The results are discussed.
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Affiliation(s)
- M E Youssef
- Department of Parasitology, Faculty of Medicine, Mansoura University, Egypt
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21
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Youssef ME, Rizk H. Malaria as a cause of prolonged fever among children in Mansoura fever hospital. J Egypt Soc Parasitol 1993; 23:417-21. [PMID: 8376858] [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: 01/30/2023]
Abstract
Prolonged fever represents a diagnostic dilemma in small age group. Little attention was given as regard parasitic infections and prolonged fever. The objective of this study was to throw some light upon the role of malaria infection as a cause of prolonged fever. The study revealed malaria by blood film in 5 out of 129 children by IFA test 8 patients were seropositive intermittent fever was the main symptom of presentation.
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Affiliation(s)
- M E Youssef
- Department of Parasitology, Faculty of Medicine, Mansoura University, A.R. Egypt
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22
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Salzman A, Wollert PS, Wang H, Menconi MJ, Youssef ME, Compton CC, Fink MP. Intraluminal oxygenation ameliorates ischemia/reperfusion-induced gut mucosal hyperpermeability in pigs. Circ Shock 1993; 40:37-46. [PMID: 8324888] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We tested the hypothesis that intraluminal oxygenation can prevent increased gut mucosal permeability to a hydrophilic solute caused by mesenteric ischemia/reperfusion (I/R). Studies were performed using pentobarbital-anesthetized immature pigs. Paired 20 cm segments of ileum were perfused intraluminally at 200 ml/hr with either nitrogenated or oxygenated 37 degrees C Ringer's lactate. Beginning at T = -90 min, fluorescein disodium acetate was infused intravenously (12.5 mg/kg bolus, then 12.5 mg/kg/hr). Permeability was assessed by calculating the plasma-to-lumen clearance of fluorescein. Five pigs were subjected to complete mesenteric ischemia (T = 0-120 min) followed by reperfusion (T = 120-270 min). In nitrogenated segments, I/R resulted in a 1015 +/- 195% increase in fluorescein clearance (P < 0.01 vs baseline). In contrast, the increase in fluorescein clearance induced by I/R in oxygenated segments was only 264 +/- 63% (P < 0.01 vs baseline). Intraluminal oxygenation afforded significant (P < .01) protection against I/R-induced mucosal hyperpermeability at all time points from T = 150-270 min. Histologic sections revealed complete villous epithelial denudation in nitrogenated segments, whereas the mucosal epithelium was largely intact in oxygenated segments. After reperfusion, mucosal ATP levels normalized in oxygenated segments, but there was only partial recovery of ATP levels in nitrogenated segments. These data indicate that intraluminal oxygenation ameliorates mucosal hyperpermeability induced by I/R.
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Affiliation(s)
- A Salzman
- Department of Surgery, University of Massachusetts Medical Center, Worcester
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Fink MP, O'Sullivan BP, Menconi MJ, Wollert SP, Wang H, Youssef ME, Bellelsle JM. Effect of granulocyte colony-stimulating factor on systemic and pulmonary responses to endotoxin in pigs. J Trauma 1993; 34:571-7; discussion 577-8. [PMID: 7683731 DOI: 10.1097/00005373-199304000-00015] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Granulocyte colony-stimulating factor (G-CSF) stimulates the production and function of neutrophils (PMNs). Administration of G-CSF to non-neutropenic animals has been shown to improve survival in experimental models of infection, but PMNs have been implicated as mediators of acute lung injury induced by lipopolysaccharide (LPS) or bacteremia. Thus G-CSF-induced neutrophilia might be deleterious in sepsis. To investigate this possibility, we studied four groups of pigs: G+E50 (n = 6) were pretreated for 5 days with recombinant bovine (rb) G-CSF (5 micrograms/kg/day) and then challenged with LPS (50 micrograms/kg); NS+E50 (n = 6) were similarly pretreated with saline and challenged with LPS (50 micrograms/kg); E250 (n = 6) were not pretreated and were infused with a larger dose of LPS (250 micrograms/kg); RL (n = 7) were controls infused with lactated Ringer's solution. Pretreatment with rbG-CSF increased the peripheral absolute neutrophil count approximately fivefold (p < 0.05 vs. RL group). Comparisons of the NS+E50 and G+E50 groups showed that pretreatment with rhG-CSF did not affect LPS-induced alterations in mean arterial blood pressure or arterial oxygenation. Indices of pulmonary injury also were similar in these two groups, although pulmonary edema and protein leakage into alveoli were greater in the E250 group. We conclude that G-CSF-induced neutrophilia does not adversely effect physiologic responses to LPS in pigs.
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Affiliation(s)
- M P Fink
- Department of Surgery, University of Massachusetts Medical Center, Worcester
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24
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el-Ganayni GA, Youssef ME. Evaluation of adult Schistosoma mansoni and cercarial antigens in serodiagnosis of schistosomiasis using IHAT and ELISA. J Egypt Soc Parasitol 1992; 22:555-60. [PMID: 1500797] [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: 12/27/2022]
Abstract
Examination of 200 bilharzial cases divided into four groups and 50 normal controls to evaluate the efficiency of adult Schistosoma mansoni and cercarial antigens in serodiagnosis of schistosomiasis using IHAT and ELISA revealed that IHA test showed high sensitivity that decreased with the progress of clinical status of the disease if adult worm antigen was utilized. Also IHAT adult antigen was more sensitive for serodiagnosis than with cercarial antigen, while ELISA is less sensitive using both cercarial and adult antigens.
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Affiliation(s)
- G A el-Ganayni
- Department of Parasitology, Faculty of Medicine, Mansoura University, Egypt
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Youssef ME, el-Einine NR. Immune response of gametocytes of Plasmodium falciparum in exogenous cases in Dakahlia Governorate, Egypt. J Egypt Soc Parasitol 1992; 22:365-9. [PMID: 1500775] [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: 12/27/2022]
Abstract
Following chloroquine treatment gametocytes numbers fell with a constant rate of loss over a period from 15-21 days. The gametocytes had a half-life of 2-4 days. The sex ratio was constant 4 female: 1 male. Antibodies to the gametocytes were detected in some patients. It was concluded that the gametocytes of P. falciparum are long-lived and can stimulate antibody production but the immune response appears to play no part in their elimination, which probably takes place in the spleen as a part of the normal process of removing old, damaged and malformed red cells.
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Affiliation(s)
- M E Youssef
- Department of Parasitology, Faculty of Medicine, Mansoura University, Egypt
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26
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el-Shazly AM, Handousa AE, Youssef ME, Abo-Shady AF. The effect of the initial inoculum dose and post-infection period on larval dispersal in experimental murine toxocariasis. J Egypt Soc Parasitol 1991; 21:785-9. [PMID: 1765691] [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: 12/28/2022]
Abstract
The distribution of Toxocara canis larvae throughout the tissues of mice was studied in three groups of fourty mice each using three inocula sizes, (200/500 and 1000 eggs/mice). The results obtained revealed a significant interaction between the duration of infection, the inoculum size and the dispersal rate of larvae through the examined organs of experimented with mice.
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Affiliation(s)
- A M el-Shazly
- Department of Parasitology, Faculty of Medicine, Mansoura University, Egypt
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27
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el Shazly AM, Handousa AE, Youssef ME, Rizk H, Hamouda MM. Human fascioliasis: a parasitic health problem in Dakahlia Governorate, Egypt. J Egypt Soc Parasitol 1991; 21:553-9. [PMID: 1875080] [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: 12/29/2022]
Abstract
Fascioliasis has a cosmopolitan distribution and is prevalent in sheep-raising countries. Now, it is an increasingly important parasite of man in the Mediterranean countries. In Dakahlia G., human fascioliasis has imposed itself as a parasitic health problem. In this paper, 23 human cases were selected to throw some light on the signs, symptoms and diagnosis of the disease. It was concluded that painful hepatomegaly, fever, anaemia and marked eosinophilia are tetrad suggesting fascioliasis in patient who has consumed watercress as green salade. Data concerning treatment and follow up will be published later.
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Affiliation(s)
- A M el Shazly
- Department of Parasitology, Faculty of Medicine, Mansoura University, Egypt
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28
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Handoussa AE, Hegazi MM, Romia SA, el-Shazely AM, el-Ganayni GA, Youssef ME, Abou Zakham AA. Some histopathological and histochemical aspects of human ancylostomiasis. J Egypt Soc Parasitol 1991; 21:219-28. [PMID: 2033294] [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: 12/29/2022]
Abstract
Using Watson's intestinal capsule small intestinal mucosal biopsies were taken from 30 patients with parasitologically proved pure ancylostomiasis and 12 normal controls. Biopsies were examined pathologically and histochemically for the enzymes, Alkaline phosphatase, succinic dehydrogenase, non specific esterases and acid phosphatase. The study revealed normal histological as well as normal enzymatic activity of the intestinal mucosa.
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Affiliation(s)
- A E Handoussa
- Department of Parasitology, Faculty of Medicine Mansoura University, Egypt
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29
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Youssef ME, el-Shazly AM, el-Ganayni GA. Parasitic infection among two different communities of primary school children in Dakahlia Governorate. J Egypt Soc Parasitol 1988; 18:75-9. [PMID: 3373065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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30
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el-Ganayni GA, el-Shazly AM, Youssef ME, Abdel-Mageid SA. ELISA and COPT in serodiagnosis of Schistosomiasis mansoni in children. J Egypt Soc Parasitol 1988; 18:165-71. [PMID: 3131444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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31
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Abou-Zakham AA, Makhlouf L, el-Kholy EI, Abo-Shady AF, Abdel-Magied SA, Youssef ME. Sero immunological diagnosis of heterophyiasis. J Egypt Soc Parasitol 1987; 17:569-72. [PMID: 3320218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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32
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Hanafi FZ, Youssef ME, Abdel-Wahab FM. Soil as a vehicle of parasitic infection to inhabitants of Talkha, Dakahlia G. J Egypt Soc Parasitol 1987; 17:135-45. [PMID: 3572054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Bernard R, Elbaze F, Fieschi JB, Youssef ME, Attal P. [Di George syndrome. Apropos of 2 cases]. Pediatrie 1980; 35:611-617. [PMID: 7454504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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