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Hamzawy MA, Abo-Youssef AM, Malak MN, Khalaf MM. Multiple targets of Nrf 2 inhibitor; trigonelline in combating urethane-induced lung cancer by caspase-executioner apoptosis, cGMP and limitation of cyclin D1 and Bcl2. Eur Rev Med Pharmacol Sci 2022; 26:9393-9408. [PMID: 36591848 DOI: 10.26355/eurrev_202212_30690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE: Among other types of cancerous lesions, lung cancer is one of the prevalent causes of death. Trigonelline is a plant alkaloid, a significant constituent in coffee, and has shown health benefits in several disorders. The present study aims to investigate the potential therapeutic role of trigonelline in lung cancer. MATERIALS AND METHODS: Seventy-five BALB/C mice were assigned to five groups and treated for 150 days as follows (1): normal control group; (2) trigonelline only (50 mg/kg/ P.O) daily for the last thirty days; (3) urethane (1.5 g/kg B.w/i.p) at day one and sixty; (4) urethane and carboplatin (15 mg/kg i.p) for the last thirty days; and (5) urethane and trigonelline for the last thirty days. Tumor size was measured while blood and lung were collected for biochemical, western blotting analysis, and histological examinations. RESULTS: Urethane demonstrated significant changes in all biochemical and molecular parameters and histological examinations. In animals pretreated with urethane, trigonelline significantly reduced tumor size and restored Nrf2, NF-кB p65, Bcl-2, Cyclin D1, ICAM-1, and MMP-2, along with improving cGMP and active caspase three and refining histological architectures. CONCLUSIONS: Nrf2 signaling may be a promising therapeutic target for adenocarcinoma protection or management. Due to its multiple therapeutic effects on Nrf2, cyclin D1, NF-кB pathways, and the BAX/Bcl2 axis, trigonelline significantly induced cell cycle arrest and apoptosis. https://www.europeanreview.org/wp/wp-content/uploads/Graphical_Abstract-1.jpg.
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Affiliation(s)
- M A Hamzawy
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Fayoum University, Fayoum, Egypt.
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Khalaf MM, Hassan SM, Sayed AM, Abo-Youssef AM. Carvacrol mitigates vancomycin-induced nephrotoxicity via regulation of IkBα/p38MAPK and Keap1/Nrf2 signaling pathways: an experimental study with in silico evidence. Eur Rev Med Pharmacol Sci 2022; 26:8738-8755. [PMID: 36524493 DOI: 10.26355/eurrev_202212_30546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE: Despite its evident renal toxicity, vancomycin is considered an effective glycopeptide antibiotic against life-threatening positive bacterial contagions. The current study aimed to investigate the potential protective effects of carvacrol as well as its underlying mechanism against vancomycin-induced nephrotoxicity. MATERIALS AND METHODS: The animals were randomly classified into four groups (8 rats per group). Group I, which served as a control group, received only vehicles. Group II received a single i.p. injection of 50 mg/kg of carvacrol for seven days. Group III received vancomycin (200 mg/kg, i.p.) as a singular daily dose for seven days. Carvacrol was administered to Group IV seven days prior to the daily vancomycin dose. RESULTS: The results revealed that carvacrol minimized vancomycin-induced renal injury as evidenced by lower serum cystatin C levels and kidney injury molecule-1 (KIM-1), in addition to a decline in renal damage caused by vancomycin as indicated in histopathological assessment. Furthermore, carvacrol significantly attenuated oxidative stress parameters and inflammatory mediators. Moreover, it downregulated Keap1, mitogen-activated protein kinase (p38MAPK), and nuclear factor kappa B (NF-κB) genes and proteins, along with controlling the NF-κB inhibitory protein (IkBα) and nuclear factor erythroid 2-related factor 2 (Nrf2) genes and proteins observed through streaming its genes. A molecular docking technique was also used to investigate the potential interactivity between carvacrol and proteins involved in regulating oxidative injury and inflammatory responses. CONCLUSIONS: The current study findings revealed that carvacrol administration before vancomycin could be a promising therapeutic approach for maceration of renal damage stimulated by vancomycin via controlling IkBα/MAPK and Keap1/Nrf2 signaling molecules. https://www.europeanreview.org/wp/wp-content/uploads/graphical-abstract-1.jpg.
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Affiliation(s)
- M M Khalaf
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt.
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Amgad M, Elfandy H, Hussein H, Atteya LA, Elsebaie MAT, Abo Elnasr LS, Sakr RA, Salem HSE, Ismail AF, Saad AM, Ahmed J, Elsebaie MAT, Rahman M, Ruhban IA, Elgazar NM, Alagha Y, Osman MH, Alhusseiny AM, Khalaf MM, Younes AAF, Abdulkarim A, Younes DM, Gadallah AM, Elkashash AM, Fala SY, Zaki BM, Beezley J, Chittajallu DR, Manthey D, Gutman DA, Cooper LAD. Structured crowdsourcing enables convolutional segmentation of histology images. Bioinformatics 2019; 35:3461-3467. [PMID: 30726865 PMCID: PMC6748796 DOI: 10.1093/bioinformatics/btz083] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 12/30/2018] [Accepted: 02/05/2019] [Indexed: 01/17/2023] Open
Abstract
MOTIVATION While deep-learning algorithms have demonstrated outstanding performance in semantic image segmentation tasks, large annotation datasets are needed to create accurate models. Annotation of histology images is challenging due to the effort and experience required to carefully delineate tissue structures, and difficulties related to sharing and markup of whole-slide images. RESULTS We recruited 25 participants, ranging in experience from senior pathologists to medical students, to delineate tissue regions in 151 breast cancer slides using the Digital Slide Archive. Inter-participant discordance was systematically evaluated, revealing low discordance for tumor and stroma, and higher discordance for more subjectively defined or rare tissue classes. Feedback provided by senior participants enabled the generation and curation of 20 000+ annotated tissue regions. Fully convolutional networks trained using these annotations were highly accurate (mean AUC=0.945), and the scale of annotation data provided notable improvements in image classification accuracy. AVAILABILITY AND IMPLEMENTATION Dataset is freely available at: https://goo.gl/cNM4EL. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Mohamed Amgad
- Department of Biomedical Informatics, Emory University School of Medicine, Atlanta, GA, USA
| | - Habiba Elfandy
- Department of Pathology, National Cancer Institute, Cairo, Egypt
| | - Hagar Hussein
- Department of Medicine, Cairo University, Cairo, Egypt
| | | | | | | | - Rokia A Sakr
- Department of Medicine, Menoufia University, Menoufia, Egypt
| | | | - Ahmed F Ismail
- Department of Pathology, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Anas M Saad
- Department of Medicine, Ain Shams University, Cairo, Egypt
| | - Joumana Ahmed
- Department of Medicine, Cairo University, Cairo, Egypt
| | | | - Mustafijur Rahman
- Department of Medicine, Chittagong University, Chittagong, Bangladesh
| | - Inas A Ruhban
- Department of Medicine, Damascus University, Damascus, Syria
| | - Nada M Elgazar
- Department of Medicine, Mansoura University, Mansoura, Egypt
| | - Yahya Alagha
- Department of Medicine, Cairo University, Cairo, Egypt
| | | | | | - Mariam M Khalaf
- Department of Medicine, Batterjee Medical College, Jeddah, Saudi Arabia
| | | | | | - Duaa M Younes
- Department of Medicine, Ain Shams University, Cairo, Egypt
| | | | | | - Salma Y Fala
- Department of Medicine, Suez Canal University, Ismailia, Egypt
| | - Basma M Zaki
- Department of Medicine, Suez Canal University, Ismailia, Egypt
| | | | | | | | - David A Gutman
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, USA
| | - Lee A D Cooper
- Department of Biomedical Informatics, Emory University School of Medicine, Atlanta, GA, USA
- Department of Biomedical Engineering, Emory University, Atlanta, GA, USA
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Shabka AA, Khalaf MM. An investigation on the shear bond strength of one dentin adhesive at two different dentin depths. Egypt Dent J 1995; 41:1031-4. [PMID: 9497637] [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: 02/06/2023]
Abstract
The aim of this investigation was to study the effect of dentin depth and patient's age on the shear bond strength of one dentin adhesive (ART Bond), using an Instron Universal testing machine at a cross-head speed of 0.5 mm/min. Forty human molar teeth were used and were divided into two main groups, twenty each representing two age groups of patients, i.e., between 20 to 30 years and between 30-40 years of age. Every group was further subdivided into two subgroups of different dentin depths, i.e., superficial and deep. Results were recorded in Kg/Cm2 and converted into MPa units, then tabulated and statistically analyzed. A Duncan's range statistic test at P < or = 0.05 showed statistically significant differences between the bond strength values for both age groups at different dentin depths, with the superficial dentin showing higher bond values, and there were also statistically significant differences between the bond strength values of the two age groups at the same dentin depth, with the older age group showing higher bond values.
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Affiliation(s)
- A A Shabka
- Operative Dentistry Dept., Faculty of Oral and Dental Medicine, Cairo University
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