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Jeong SH, Jang JH, Lee YB. Exploring Differences in Pharmacometrics of Rabeprazole between Genders via Population Pharmacokinetic-Pharmacodynamic Modeling. Biomedicines 2023; 11:3021. [PMID: 38002021 PMCID: PMC10669052 DOI: 10.3390/biomedicines11113021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
Rabeprazole is a proton pump inhibitor that inhibits gastric acid production and increases gastric pH; it is widely used clinically as a treatment option for gastritis and gastric ulcers. However, information on the inter-individual variability of rabeprazole pharmacometrics, which is a key element in establishing its scientific clinical use, is still lacking. Particularly, the differences in pharmacokinetics between genders and the degree of variation in pharmacodynamics have not been clearly identified. Thus, the main purpose of this study was to explore any differences in rabeprazole pharmacokinetics between genders and to quantitatively predict and compare the effects of any differences in pharmacokinetics between genders on known pharmacodynamics using population pharmacokinetic-pharmacodynamic modeling. To compare pharmacokinetics and modeling data between genders, bioequivalence results were used simultaneously on healthy Korean men and women using the physiological and biochemical parameters derived from each individual. Pharmacodynamic modeling was performed based on the data of previously reported gastric pH changes in response to rabeprazole plasma concentrations, which was co-linked to the central compartmental bioavailable concentration in the population pharmacokinetic model. There was no significant difference in the level of rabeprazole exposure and elimination of plasma between genders following oral administration of 10 mg enteric-coated rabeprazole tablets; however, there was a clear delay in absorption in women compared to men. Additionally, a comparison of pharmacokinetic parameters normalized to body weight between genders showed that the maximum plasma concentrations were significantly higher in women than in men, again suggesting gender differences in rabeprazole absorption. The population pharmacokinetic profiles for rabeprazole were described using a three-sequential multi-absorption with lag time (Tlag) two-compartment model, whereas body surface area and gender were explored as effective covariates for absorption rate constant and Tlag, respectively. The effect of increased gastric pH due to plasma exposure to rabeprazole was explained using the Sigmoid Emax model, with the baseline as a direct response. The significantly longer rabeprazole Tlag in females delayed the onset of an effect by an average of 1.58 times (2.02-3.20 h), yet the overall and maximum effects did not cause a significant difference within 15%. In the relative comparison of the overall efficacy of rabeprazole enteric-coated tablet administration between genders, it was predicted based on the model that males would have higher efficacy. This study will be very useful in broadening the perspective of interpreting drug diversity between individuals and narrowing the gap in knowledge related to scientific precision medicine by presenting new information on gender differences in rabeprazole pharmacometrics that had not been previously identified.
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Affiliation(s)
- Seung-Hyun Jeong
- College of Pharmacy, Sunchon National University, 255 Jungang-ro, Suncheon-si 57922, Republic of Korea; (S.-H.J.); (J.-H.J.)
- College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon-si 57922, Republic of Korea
| | - Ji-Hun Jang
- College of Pharmacy, Sunchon National University, 255 Jungang-ro, Suncheon-si 57922, Republic of Korea; (S.-H.J.); (J.-H.J.)
| | - Yong-Bok Lee
- College of Pharmacy, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
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Sanad MH, Marzook FA, Ibrahim IT, Abd-Elhalim SM, Farrag NS. Preparation and Bioevaluation of Radioiodinated Omberacetam as a Radiotracer for Brain Imaging. RADIOCHEMISTRY 2023; 65:114-121. [DOI: 10.1134/s1066362223010162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/04/2023] [Accepted: 03/06/2023] [Indexed: 09/02/2023]
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3
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Sanad MH, Rizvi SFA, Marzook FA, Farag AB. In-Silico Study, Preparation and Biological Evaluation of 99MTC-Mesalamine Complex as Radiotracer for Diagnostics and Monitoring of Ulcerative Colitis in Mice. Pharm Chem J 2022. [DOI: 10.1007/s11094-022-02706-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Sanad MH, Farag AB, Marzook FA, Mandal SK. Radiocomplexation, Chromatographic Separation and Bioevaluation of [99mTc]Dithiocarbamate of Procainamide as Selective Labeled Compound for Myocardial Perfusion Imaging. Pharm Chem J 2022. [DOI: 10.1007/s11094-022-02709-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sanad MH, Marzook FA, Mandal SK, Baidya M. Radiocomplexation and Biological Evaluation of [99mTc]Tricarbonyl Rabeprazole as a Radiotracer for Peptic Ulcer Localization. RADIOCHEMISTRY 2022. [DOI: 10.1134/s1066362222020138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Sanad MH, Eyssa HM, Marzook FA, Farag AB. Preparation and Bioevaluation of [99mTc]Tricarbonyl Omeprazole for Gastric Ulcer Localization in Mice. RADIOCHEMISTRY 2022. [DOI: 10.1134/s106636222201009x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Sanad M, Farag A, Bassem SA, Marzook F. Radioiodination of zearalenone and determination of Lactobacillus plantarum effect of on zearalenone organ distribution: In silico study and preclinical evaluation. Toxicol Rep 2022; 9:470-479. [PMID: 35345860 PMCID: PMC8956894 DOI: 10.1016/j.toxrep.2022.02.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 01/21/2022] [Accepted: 02/06/2022] [Indexed: 10/26/2022] Open
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Sanad MH, Marzook FA, Farag AB, Mandal SK, Rizvi SFA, Gupta JK. Preparation, biological evaluation and radiolabeling of [99mTc]-technetium tricarbonyl procainamide as a tracer for heart imaging in mice. RADIOCHIM ACTA 2022. [DOI: 10.1515/ract-2021-1079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Abstract
This study focuses on the synthesis and preliminary bio-evaluation of [99mTc]-technetium tricarbonyl procainamide ([99mTc]-technetium tricarbony PA) as a viable cardiac imaging agent. The compound, [99mTc]-technetium tricarbony PA, was synthesized by labelling procainamide with a [99mTc]-technetium tricarbonyl core, yielding a high radiochemical yield and radiochemical purity of 98%. Under optimal circumstances, high radiochemical yield and purity were obtained utilizing [99mTc]-technetium tricarbonyl core within 30 min of incubation at pH 9, 200 µg substrate concentration, and 100 °C reaction temperature. The heart showed a high absorption of 32.39 ± 0.88% of the injected dose/g organ (ID/g), confirming the suitability of [99mTc]-technetium tricarbonyl PA as a viable complex for heart imaging.
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Affiliation(s)
- M. H. Sanad
- Labeled Compounds Department , Hot Laboratories Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - Fawzy A. Marzook
- Labeled Compounds Department , Hot Laboratories Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - Ayman B. Farag
- Pharmaceutical Chemistry Department , Faculty of Pharmacy, Ahram Canadian University , Giza , Egypt
| | - Sudip Kumar Mandal
- Department of Pharmaceutical Chemistry , Dr. B. C. Roy College of Pharmacy and Allied Health Sciences , Durgapur 713206 , West Bengal , India
| | - Syed F. A. Rizvi
- College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , Gansu , P. R. China
| | - Jeetendra Kumar Gupta
- Institute of Pharmaceutical Research , GLA University Mathura , Uttar Pradesh , India
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Eyssa HM, El Refay HM, Sanad MH. Enhancement of the thermal and physicochemical properties of styrene butadiene rubber composite foam using nanoparticle fillers and electron beam radiation. RADIOCHIM ACTA 2022. [DOI: 10.1515/ract-2021-1091] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Abstract
This study investigates the physicochemical and thermal properties of styrene–butadiene rubber (SBR) nanocomposite foam. Nano-calcium carbonate (CaCO3) was prepared from eggshells (ESs) waste. Sponge rubber nanocomposites were prepared and were irradiated by electron beam (EB) radiation at 25, 75, and 150 kGy. Their physicochemical properties, including foam density, compression set (CS), hardness, abrasion loss, and expansion ratio, and their thermal stability were investigated. The physicochemical properties were enhanced by adding 2.5 phr of a foaming agent. Among the composites examined, the foam composites containing nano-CaCO3 had the lowest CS, abrasion loss, and expansion ratio and the highest hardness and foam density. The results confirmed that the thermal stability was improved by incorporating nano-CaCO3 into the SBR foam and as the radiation dose increased. The sponge containing nanoclay demonstrated an intermediate behavior, whereas that with CaCO3 nanoparticles showed low average cell diameter and size and high cell wall thickness. The radiation process enhanced the foam density, CS, abrasion loss, hardness, and thermal property of the developed nanocomposites by inducing the formation of intermolecular crosslinks within the composite matrix. The results showed that physicochemical properties improved by increasing the radiation dose at 25 kGy.
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Affiliation(s)
- H. M. Eyssa
- Radiation Chemistry Department , National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority , P. O. Box 29 , Cairo , Egypt
| | - Heba. M. El Refay
- Chemistry Department , Faculty of Science (Girls), Al Azhar University , P.O. Box: 11754 , Cairo , Egypt
| | - M. H. Sanad
- Labeled Compounds Department, Hot Labs Center , Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
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Sanad MH, Eyssa HM, Marzook FA, Rizvi SFA, Farag AB, Fouzy ASM, Bassem SA, Ibrahim AA. Synthesis, Radiolabeling, and Biological Evaluation of 99mTc-Tricarbonyl Mesalamine as a Potential Ulcerative Colitis Imaging Agent. RADIOCHEMISTRY 2022. [DOI: 10.1134/s1066362221060163] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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11
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Sanad MH, Eyssa HM, Marzook FA, Farag AB, Rizvi SFA, Mandal SK, Patnaik SS, Fouzy ASM. Optimized Chromatographic Separation and Bioevalution of Radioiodinated Ilaprazole as a New Labeled Compound for Peptic Ulcer Localization in Mice. RADIOCHEMISTRY 2022. [DOI: 10.1134/s1066362221060138] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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12
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Sanad MH, Gomaa NM, El Bakary NM, Ibrahim IT, Massoud A. Radioiodination of balsalazide, bioevaluation, and characterization as a highly selective radiotracer for imaging of ulcerative colitis in mice. J Labelled Comp Radiopharm 2022; 65:71-82. [PMID: 34984721 DOI: 10.1002/jlcr.3961] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 12/26/2021] [Accepted: 12/27/2021] [Indexed: 01/01/2023]
Abstract
This work focuses on tracking ulcerative colitis in mice. High labeling yield and radiochemical purity were achieved for the formation of a [125/131 I]balsalazide radiotracer at optimum conditions of oxidizing agent content (chloramines-T [Ch-T], 75 μg), substrate amount (100 μg), pH of reaction mixture (6), reaction time (30 min), and temperature (37°C), using radioactive iodine-125 (200-450 MBq). The radiolabeled compound, [125/131 I]balsalazide, was stable in serum and saline solution during 24 h. Balsalazide is acting as a peroxisome proliferator-activated receptor (PPARγ). Biodistribution studies were carried in normal and ulcerated colon mice. High uptake of 75 ± 1.90% injected dose/g organ (ID/g) observed in ulcerated mice confirmed the suitability of [131 I]balsalazide as a novel radiotracer for ulcerative colitis imaging in mice.
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Affiliation(s)
- M H Sanad
- Labeled Compounds Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Cairo, Egypt.,Department of Physics and Engineering Mathematics, Faculty of Engineering, Ain Shams University, Cairo, Egypt
| | - Nermien M Gomaa
- Radiation Microbiology Department/Biotechnology/National Center for Research and Radiation Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Nermeen M El Bakary
- Radiation Biology Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Ismail T Ibrahim
- Labeled Compounds Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Ayman Massoud
- Nuclear Chemistry Department, Hot Labs Center, Egyptian Atomic Energy Authority, Cairo, Egypt
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Sanad MH, Farag AB, Marzook FA, Mandal SK. Preparation, characterization, and bioevaluation of 99mTc-famotidine as a selective radiotracer for peptic ulcer disorder detection in mice. RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2021-1105] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
This work focuses on tracking peptic ulcer localized in mice. The formation of a [99mTc]dithiocarbamate of famotidine complex at optimum conditions of reaction temperature (37 °C), reaction time (30 min), pH of the reaction mixture (5), amount of substrate (100 µg), amount of reducing agent (tin (II) content, 50 µg), was achieved using radioactive Tc-99m (250–400 MBq), with labelling yield of 98% and high radiochemical purity. The in-vitro stability of [99mTc]dithiocarbamate of famotidine complex was shown to be high in rat serum for up to 8 h. Normal and ulcerated mice were used in biodistribution studies. Famotidine works by blocking histamine-2-receptor antagonists (H2RAs). The high absorption of [99mTc]dithiocarbamate of famotidine complex in stomach in amount of 27.15% injected dose/g organ (ID/g) observed in ulcerated mice for up to 24 h demonstrated its usefulness as a novel radiotracer for stomach imaging.
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Affiliation(s)
- M. H. Sanad
- Labeled Compounds Department , Hot Laboratories Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
- Department of Physics and Engineering Mathematics , Faculty of Engineering, Ain Shams University , P.O. Box 11566 , Cairo , Egypt
| | - Ayman B. Farag
- Pharmaceutical Chemistry Department, Faculty of Pharmacy , Ahram Canadian University , Giza , Egypt
| | - F. A. Marzook
- Labeled Compounds Department , Hot Laboratories Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - Sudip Kumar Mandal
- Department of Pharmaceutical Chemistry , Dr. B. C. Roy College of Pharmacy and Allied Health Sciences , Durgapur 713 206 , West Bengal , India
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Sanad MH, Eyssa HM, Marzook FA, Farag AB, Rizvi SFA, Mandal SK, Patnaik SS, Fouzy ASM, Bassem SA, Verpoort F. Comparative Bioevaluation of 99mTc Tricarbonyl and 99mTc-Sn(II) Lansoprazole as a Model for Peptic Ulcer Localization. RADIOCHEMISTRY 2021. [DOI: 10.1134/s1066362221050131] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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15
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Sanad MH, Eyssa HM, Marzook FA, Farag AB, Rizvi SFA, Mandal SK, Patnaik SS, Fouzy ASM, Bassem SA, Verpoort F. Radiosynthesis and Biological Evaluation of 99mTc Nitrido-Levetiracetam as a Brain Imaging Agent. RADIOCHEMISTRY 2021. [DOI: 10.1134/s106636222105012x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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16
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Design of novel radiotracer 99mTcN-tetrathiocarbamate as SPECT imaging agent: a preclinical study for GFR renal function. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01926-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sanad MH, Gizawy MA, Motaleb MA, Ibrahim IT, Saad EA. A Comparative Study of Stannous Chloride and Sodium Borohydride as Reducing Agents for the Radiolabeling of 2,3,7,8,12,13,17,18-Octaethyl-21H,23H-Porphine with Technetium-99m for Tumor Imaging. RADIOCHEMISTRY 2021. [DOI: 10.1134/s1066362221040159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Sanad MH, Marzook FA, Rizvi SFA, Farag AB, Fouzy ASM. Radioiodinated Azilsartan as a New Highly Selective Radiotracer for Myocardial Perfusion Imaging. RADIOCHEMISTRY 2021. [DOI: 10.1134/s1066362221040160] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Hossain MJ, Islam MS, Shahriar S, Sanam S, Emran TB, Khatun CS, Islam MR, Mitra S, Dhama K. COMEDICATION OF RABEPRAZOLE SODIUM CAUSES POTENTIAL DRUG-DRUG INTERACTION WITH DIABETIC DRUG LINAGLIPTIN: In-vitro AND In-silico APPROACHES. JOURNAL OF EXPERIMENTAL BIOLOGY AND AGRICULTURAL SCIENCES 2021; 9:528-542. [DOI: 10.18006/2021.9(4).528.542] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/03/2023]
Abstract
Drug-drug interaction is a notable concern among physicians when prescribing multi-therapy to the patients as concomitant administration of multi-drugs might cause unexpected adverse drug reactions. The main objective of this research is to predict a potential drug-drug interaction between two frequently used drugs by diabetic patients, an antidiabetic drug (linagliptin) and a proton pump inhibitor (rabeprazole sodium). Here, several in vitro techniques, including thermal (melting point, thermogravimetric analysis [TGA]), morphological (scanning electron microscopy [SEM] and X-ray powder diffraction [XRPD] analysis), highly sophisticated synchronous fluorescence, and in silico methods were applied to anticipate the potential drug-drug interaction between these stated drugs quickly. The melting point and TGA study revealed thermochemical properties, thermal stability profiles, and degradation patterns upon temperature rising of the formed complex and these precursor drugs. The SEM and XRPD have provided the morphological changes like particle shape and size distribution of the desired molecule that might be caused due to the potential drug-drug interactions. Besides, the drastic reduction of the quenching rate constant of linagliptin during interaction with bovine serum albumin in synchronous fluorescence also endorsed the potential drug-drug interaction. Furthermore, the drug-receptor docking analysis demonstrated that the binding affinity of the precursor ligands might be reduced due to the predicted drug-drug interaction. However, the current evidence warrants extensive investigation to confirm the above-stated potential drug-drug interaction in the larger animal model. Finally, clinical data need to be closely monitored during the treatment of diabetic patients prescribed with linagliptin and rabeprazole sodium.
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Sanad MH, Rizvi SFA, Farag AB. Radiosynthesis and in silico bioevaluation of 131 I-Sulfasalazine as a highly selective radiotracer for imaging of ulcerative colitis. Chem Biol Drug Des 2021; 98:751-761. [PMID: 34314572 DOI: 10.1111/cbdd.13929] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 06/24/2021] [Accepted: 07/23/2021] [Indexed: 12/13/2022]
Abstract
This study demonstrated the tracking of ulcerative colitis, which is considered a stressful immune disease. Although there are many ways to test for this disease including dependence on gases, dyes, and painful anal endoscopy, these treatment modalities have many disadvantages. Hence, it is the utmost need of time to discover new methods to detect this chronic immune disease and to avoid the defects of traditional methodologies. Sulfasalazine (SSD) was labeled with iodine-131 (half-life: 8 days, Energy: 971 keV) under optimum reaction conditions including the amount of reducing agent, pH factor, chloramine-T (Ch-T) amount, and incubation period. Characterization was performed using 1 H/ 13 C-NMR, ESI-MS, and HPLC (UV/ Radio) techniques. The biodistribution study was performed in normal and ulcerative mice models, and in silico molecular docking study was performed to evaluate the possible mechanism of action to target peroxisome proliferator-activated receptor gamma (PPARγ). The high radiolabeling yield of [131 I]-sulfasalazine ([131 I]-SSD) was achieved ≥90% through the direct labeling method with radioactive iodine-131 in the presence of chloramine-T (100 μg). The radiotracer [131 I]-SSD was observed to be stable in normal saline and freshly eluted serum up to 12 hr at ambient temperature (37℃ ± 2℃). The radiotracer [131 I]-SSD showed the highest uptake in the targeted organ (i.e., ulcerative colon) which was observed to be ≥75% injected dose per gram (% ID/g) organ for 24 hr postinjection (p.i). Furthermore, in silico data collected from molecular modeling analysis of SSD and [131 I]-SSD with antimicrobial protein (PDB code: 3KEG) and peroxisome proliferator-activated receptor gamma (PPARγ) (PDB code: 4XTA) showed azoreductase activity and high binding potential for PPAR-γ site, respectively. The results of biological studies obtained in this study enlighten the usefulness of radiotracer [131 I]-SSD as a potential imaging agent for ulcerative colitis.
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Affiliation(s)
- M H Sanad
- Labeled Compounds Department, Hot Labs Center, Egyptian Atomic Energy Authority, Cairo, Egypt
| | | | - Ayman B Farag
- Department of Pharmaceutical Chemistry, Ahram Canadian University, Giza, Egypt
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Sanad MH, Eyssa HM, Gomaa NM, Marzook FA, Bassem SA. Radioiodinated esomeprazole as a model for peptic ulcer localization. RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2021-1056] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Abstract
This work focuses on tracking stomach ulcer localized in mice. High labeling yield and radiochemical purity were achieved for the formation of a [125I]esomeprazole radiotracer at optimum conditions of oxidizing agent content (chloramines-T (Ch-T), 100 μg), substrate amount (Esom, 100 μg), pH of reaction mixture (6), reaction time (30 min) and temperature (37 °C), using radioactive iodine-125 (200–450 MBq). The radiolabeled compound, [125I]esom, was stable in serum and saline solution during 24 h. Esom is acting as a histamine-2-receptor antagonist (H2RA). Biodistribution studies were carried in normal and ulcerated mice. High uptake of 78.12 ± 0.80% injected dose/g organ (ID/g) observed in ulcerated mice confirmed the suitability of [125I]esomeprazole as a novel radiotracer for stomach imaging.
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Affiliation(s)
- M. H. Sanad
- Labeled Compounds Department , Hot Labs Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - H. M. Eyssa
- Radiation Chemistry Department , National Center for Research and Radiation Technology, Egyptian Atomic Energy Authority , P.O. Box 29 , Cairo , Egypt
| | - N. M. Gomaa
- Radiation Microbiology Department/Biotechnology/National Center for Research and Radiation Technology , Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - F. A. Marzook
- Labeled Compounds Department , Hot Labs Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - S. A. Bassem
- Food Toxicology and Contaminants Department , National Research Centre , Dokki , Cairo , Egypt
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Sanad MH, Farag AB, Rizvi SFA. In silico and in vivo study of radio-iodinated nefiracetam as a radiotracer for brain imaging in mice. RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2020-0125] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
This study presents development and characterization of a radiotracer, [125I]iodonefiracetam ([125I]iodoNEF). Labeling with high yield and radiochemical purity was achieved through the formation of a [125I]iodoNEF radiotracer after investigating many factors like oxidizing agent content (chloramines-T (Ch-T)), substrate amount (Nefiracetam (NEF)), pH of reaction mixture, reaction time and temperature. Nefiracetam (NEF) is known as nootropic agent, acting as N-methyl-d-aspartic acid receptor ligand (NMDA). The radiolabeled compound was stable, and exhibited the logarithm of the partition coefficient (log p) value of [125I]iodonefiracetam as 1.85 (lipophilic). Biodistribution studies in normal mice confirmed the suitability of the [125I]iodoNEF radiotracer as a novel tracer for brain imaging. High uptake of 8.61 ± 0.14 percent injected dose/g organ was observed in mice
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Affiliation(s)
- M. H. Sanad
- Labeled Compounds Department , Hot Laboratories Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - A. B. Farag
- Pharmaceutical Chemistry Department , Faculty of Pharmacy, Ahram Canadian University , Giza , Egypt
| | - S. F. A. Rizvi
- College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000 , Gansu , PR China
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Sanad MH, Rizvi SFA, Farag AB. Synthesis, characterization, and bioevaluation of 99mTc nitrido-oxiracetam as a brain imaging model. RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2021-0003] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Abstract
In this work, the radiotracer [99mTc]nitrido-oxiracetam complex was labeled in the presence of 99mTc-nitrido as a core. In order to get the highest radiochemical purity, many effective factors have been studied such as temperature of the reaction, time of the reaction, the pH of the reaction mixture, substrate amount, and stability to give high percent more than 99%. Finally, biodistribution studies have been indicated the convenience of [99mTc]nitrido-oxiracetam as a new radiotracer that could be used in brain imaging. Giving a maximum uptake of 10.6% at 30 min post injection.
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Affiliation(s)
- M. H. Sanad
- Labeled Compounds Department , Hot Laboratories Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - S. F. A. Rizvi
- College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, Gansu , P. R. China
| | - A. B. Farag
- Pharmaceutical Chemistry Department , Faculty of Pharmacy, Ahram Canadian University , Giza , Egypt
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Bakheit AH, Al-Kahtani HM, Albraiki S. Rabeprazole: A comprehensive profile. PROFILES OF DRUG SUBSTANCES, EXCIPIENTS, AND RELATED METHODOLOGY 2021; 46:137-183. [PMID: 33461697 DOI: 10.1016/bs.podrm.2020.07.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Rabeprazole belongs to the class of anti-secretory drugs, with benzimidazoles substitution. These drugs induce gastric acid secretion through precise inhibition of the enzyme H+/K+-ATPase (acid or proton pump). This effect helps to treat and prevent conditions in which gastric acid directly aggravates symptoms such as duodenal and gastric ulcers. This chapter includes a comprehensive review of rabeprazole in terms of nomenclature, its physical-chemical properties, methods of preparation and ADME profiles. In addition, the chapter also includes a review of several methods for analysis of rebeprazole in its dosage forms and biological fluids.
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Affiliation(s)
- Ahmed H Bakheit
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Kingdom of Saudi Arabia; Department of Chemistry, Faculty of Science and Technology, Al-Neelain University, Khartoum, Sudan.
| | - Hamad M Al-Kahtani
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Salem Albraiki
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Kingdom of Saudi Arabia
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Radioiodination and biological evaluation of Cimetidine as a new highly selective radiotracer for peptic ulcer disorder detection. RADIOCHIM ACTA 2020. [DOI: 10.1515/ract-2020-0046] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Abstract
One of the most famous techniques for stomach ulcer imaging is the nuclear imaging technique. We aim to focus on the synthesis of 125I-cimetidine (125I-cim) as an agent for peptic ulcer imaging. Cimetidine was labeled with Iodine-125 using a different oxidizing agent (Ch-T, NBS). All factors affecting the labeling yield were optimized. The radiochemical yield of 125I-cim was 98 ± 0.22% at optimum conditions. In vitro stability, in vivo biodistribution of 125I-cimetidine was studied in three groups: control group, pretreated group, and ulcer bearing group. In vivo biodistribution studies of 125I-cim revealed high uptake in the stomach ulcer, reaching about 75.4 ± 1.2% ID/g at 15 min post-injection, than pretreated groups compared to the control. The results showed the suitability of using 125I-cimetidine for stomach ulcer imaging.
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Sanad MH, Rizvi FA, Kumar RR. Radiosynthesis and Bioevaluation of Ranitidine as Highly Selective Radiotracer for Peptic Ulcer Disorder Detection. RADIOCHEMISTRY 2020. [DOI: 10.1134/s1066362220010154] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Sanad MH, Farag AB, Saleh GM. Radiosynthesis and Biological Evaluation of 188Re-5,10,15,20-Tetra(4-pyridyl)-21H,23H-porphyrin Complex as a Tumor-Targeting Agent. RADIOCHEMISTRY 2019. [DOI: 10.1134/s106636221903010x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Facile radiolabeling optimization process via design of experiments and an intelligent optimization algorithm: Application for omeprazole radioiodination. J Labelled Comp Radiopharm 2019; 62:280-287. [DOI: 10.1002/jlcr.3734] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 04/04/2019] [Accepted: 04/04/2019] [Indexed: 12/12/2022]
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Marzook FA, Ramadan HE, Talaat HM. Preparation of 188Re-Labetalol as a β1-Adrenoceptor for Use in Nuclear Medicine. RADIOCHEMISTRY 2019. [DOI: 10.1134/s1066362219020188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sanad MH, Talaat HM, Ibrahim IT, Saleh GM, Abouzeid LA. Radioiodinated celiprolol as a new highly selective radiotracer for β1-adrenoceptor-myocardial perfusion imaging. RADIOCHIM ACTA 2018. [DOI: 10.1515/ract-2017-2903] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The present study was oriented to synthesis radioiodinated celiprolol (Cel) for a potential cardiac imaging. Celiprolol has been labeled using 125I with chloramine-T (Ch-T) as an oxidizing agent. The key effective factors such as amount of oxidizing agent, amount of substrate, pH, reaction temperature and reaction time, have been systematically studied to optimize the iodination. The biological distribution indicates the suitability of radioiodinated Cel as a novel tracer to image heart.
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Affiliation(s)
- M. H. Sanad
- Labeled Compounds Department , Hot Labs Center , Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt , E-mail:
| | - H. M. Talaat
- Labeled Compounds Department , Hot Labs Center , Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - I. T. Ibrahim
- Labeled Compounds Department , Hot Labs Center , Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - G. M. Saleh
- Health Radiation Research Department (Radiodiagnosis Unit) , National Center for Radiation Research and Technology, Atomic Energy Authority , Cairo , Egypt
| | - L. A. Abouzeid
- Department of Organic Pharmaceutical Chemistry , Faculty of Pharmacy, Delta University , Mansoura , Egypt
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Sanad MH, Marzook EA, Challan SB. Radioiodination of olmesartan medoxomil and biological evaluation of the product as a tracer for cardiac imaging. RADIOCHIM ACTA 2017. [DOI: 10.1515/ract-2017-2830] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The present study is oriented to synthesis of radioiodinated olmesartan medoxomil (OM) for potential cardiac imaging. Olmesartan medoxomil has been labeled with [125/131I] using chloramine-T (Ch-T) as an oxidizing agent. The key effective factors such as amount of oxidizing agent, amount of substrate, pH, reaction temperature and reaction time, have been systematically studied to get high radiochemical yield of the [125I]olmesartan medoxomil reaching values of 98.5%. The labeled compound was separated and purified using thin layer chromatography (TLC), paper electrophoresis and high performance liquid chromatography (HPLC). The biological distribution indicates the suitability of [125I]olmesartan medoxomil as a novel tracer to image heart with high heart/blood ratio within 30 min which was detected by gamma camera.
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Affiliation(s)
- M. H. Sanad
- Labeled Compounds Department , Hot Labs Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt , E-mail:
| | - Ebtisam. A. Marzook
- Biological Application Department , Nuclear Research Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - Safaa B. Challan
- Nuclear Physics Department , Cyclotron Project, Nuclear Research Center, Egyptian Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
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Synthesis, bioevaluation and gamma scintigraphy of 99mTc-N-2-(furylmethyl iminodiacetic acid) complex as a new renal radiopharmaceutical. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5617-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sanad MH, Sallam KM, Marzook F. Labeling and biological evaluation of 99m Tc-tricarbonyl-chenodiol for hepatobiliary imaging. RADIOCHEMISTRY 2017. [DOI: 10.1134/s10663622170500149] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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34
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Sanad MH, Saleh GM, Marzook FA. Radioiodination and biological evaluation of nizatidine as a new highly selective radiotracer for peptic ulcer disorder detection. J Labelled Comp Radiopharm 2017; 60:600-607. [PMID: 28833386 DOI: 10.1002/jlcr.3541] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 08/14/2017] [Accepted: 08/15/2017] [Indexed: 11/08/2022]
Abstract
Nizatidine has been labeled using [125 I] with chloramine-T as oxidizing agent. Factors such as the amount of oxidizing agent, amount of substrate, pH, reaction temperature, and reaction time have been systematically studied to optimize the iodination. Biodistribution studies indicate the suitability of radioiodinated nizatidine as a novel tracer to image stomach ulcer. Radioiodinated nizatidine may be considered a highly selective radiotracer for peptic ulcer imaging.
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Affiliation(s)
- M H Sanad
- Labeled Compounds Department, Radioisotopes Production and Radioactive Sources Division, Hot Laboratories Center, Atomic Energy Authority, Cairo, Egypt
| | - Gehan M Saleh
- Health Radiation Research Department (Radiodiagnosis Unit), National Center for Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt
| | - F A Marzook
- Labeled Compounds Department, Radioisotopes Production and Radioactive Sources Division, Hot Laboratories Center, Atomic Energy Authority, Cairo, Egypt
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