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Siless GE, Cabrera GM. Calcium complexation by steroids involved in the steroidogenesis. Metallomics 2024; 16:mfae010. [PMID: 38337175 DOI: 10.1093/mtomcs/mfae010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 02/07/2024] [Indexed: 02/12/2024]
Abstract
Steroids that take part in the pathways of human steroidogenesis are involved in many biological mechanisms where they interact with calcium. In the present work, the binding selectivities and affinities for calcium of progestagens, mineralocorticoids, androstagens, and estrogens were studied by Electrospray Ionization-Mass Spectrometry (ESI-MS). The adduct profile of each steroid was characterized by high resolution and tandem mass spectrometry. The relative stability of the most important adducts was studied by threshold collision induced dissociation, E1/2. Doubly-charged steroid-calcium complexes [nM + Ca]2+ with n = 1-6 were predominant in the mass spectra. The adduct [5M + Ca]2+ was the base peak for most 3-keto-steroids, while ligands bearing hindered ketones or α-hydroxy-ketones also yielded [nM + Ca + mH2O]2+ with n = 3-4 and m = 0-1. Principal component analysis allowed us to spot the main differences and similarities in the binding behavior of these steroids. The isomers testosterone and dehydroepiandrosterone, androstanolone and epiandrosterone, and 17-α-hydroxyprogesterone and 11-deoxycorticosterone showed remarkable differences in their adduct profiles. Computational modeling of representative adducts was performed by density functional theory methods. The possible binding modes at low and high numbers of steroid ligands were determined by calcium Gas Phase Affinity, and through modeling of the complexes and comparison of their relative stabilities, in agreement with the experimental results.
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Affiliation(s)
- Gastón E Siless
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Universidad de Buenos Aires, Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Unidad de Microanálisis y Métodos Físicos aplicados a la Química Orgánica (UMYMFOR), Buenos Aires, Argentina
| | - Gabriela M Cabrera
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Orgánica, Universidad de Buenos Aires, Buenos Aires, Argentina
- CONICET-Universidad de Buenos Aires, Unidad de Microanálisis y Métodos Físicos aplicados a la Química Orgánica (UMYMFOR), Buenos Aires, Argentina
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Wu Y, Zhu B, Zhang X, Li D, Zhang K, Liang J, Cao B. Preparation and characterization of Y-doped microarc oxidation coating on AZ31 magnesium alloys. J Biomater Appl 2022; 37:930-941. [PMID: 35971286 DOI: 10.1177/08853282221121886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The rapid degradation characteristics of magnesium alloys limit its application in the field of orthopedic fracture fixation and cardiovascular stents. This study aimed to improve the corrosion resistance and biocompatibility of AZ31 magnesium alloys and prepare degradable implant materials. Micro-arc oxidation (MAO) was used to change the concentration of yttrium acetate in the electrolyte to prepare coatings with different yttrium content on the surface of AZ31 magnesium alloy. Through characterization, it is proved that the yttrium in the coating mainly exists in the form of Y3+. The polarization potential experiment shows that the micro-arc oxidation coating significantly improves the corrosion resistance of magnesium alloys. With the increase of yttrium acetate concentration in the electrolyte, the corrosion resistance of the coating first increases and then weakens. When the concentration is 0.0035 mol/L, the coating has the highest corrosion resistance. The results of CCK-8 cytotoxicity experiment and cell morphology observation also proved that the cell viability in each group was greater than 140%, and the yttrium-doped coating on the surface of AZ31 magnesium alloy has no cytotoxicity, can promote cell growth, and has good biocompatibility.
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Affiliation(s)
| | - Bowu Zhu
- 12426Lanzhou University, Lanzhou, China
| | | | - Duhong Li
- 12426Lanzhou University, Lanzhou, China
| | | | - Jun Liang
- 53045Chinese Academy of Sciences Lanzhou Branch, Lanzhou, China
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Case DR, Brennessel WW, Zubieta J, Doyle RP. Synthesis, characterization and crystal structure of a glycylglycinate chelate of zinc(II). RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2021.100274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Case D, Gonzalez R, Zubieta J, Doyle RP. Synthesis, Characterization, and Cellular Uptake of a Glycylglycine Chelate of Magnesium. ACS OMEGA 2021; 6:33454-33461. [PMID: 34926895 PMCID: PMC8679001 DOI: 10.1021/acsomega.1c04146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 11/19/2021] [Indexed: 06/14/2023]
Abstract
Human chronic latent magnesium deficiency is estimated to impact a substantive portion of the world's population. A number of magnesium compounds have been developed to combat this deficiency; however, none are ideal due to issues of solubility, absorption, side effects (e.g., laxation) and/or formulation. Here, we describe the pH-dependent synthesis, chemical characterization (inductively coupled plasma and thermal analysis, infrared and nuclear magnetic resonance (1D and 2D) spectroscopies, and electrospray mass spectrometry) and in vitro uptake (in a cell model of the large intestine (CaCo-2 cells)) of a magnesium complex of the glycine dimer (HG2). Results demonstrate that the HG2 ligand assumes a tridentate coordination mode with an N2O donor set and an octahedral coordination sphere completed with coordinated waters. The magnesium:HG2 complex exhibits significant solubility and cellular uptake.
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Affiliation(s)
- Derek
R. Case
- 111
College Place, Department of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Ren Gonzalez
- Balchem
Corporation, 52 Sunrise Park Road, New Hampton, New York 10958, United
States
| | - Jon Zubieta
- 111
College Place, Department of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Robert P. Doyle
- 111
College Place, Department of Chemistry, Syracuse University, Syracuse, New York 13244, United States
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Jones NS, Comparin JH. Interpol review of controlled substances 2016-2019. Forensic Sci Int Synerg 2020; 2:608-669. [PMID: 33385148 PMCID: PMC7770462 DOI: 10.1016/j.fsisyn.2020.01.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 01/23/2020] [Indexed: 12/14/2022]
Abstract
This review paper covers the forensic-relevant literature in controlled substances from 2016 to 2019 as a part of the 19th Interpol International Forensic Science Managers Symposium. The review papers are also available at the Interpol website at: https://www.interpol.int/content/download/14458/file/Interpol%20Review%20Papers%202019.pdf.
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Affiliation(s)
- Nicole S. Jones
- RTI International, Applied Justice Research Division, Center for Forensic Sciences, 3040 E. Cornwallis Road, Research Triangle Park, NC, 22709-2194, USA
| | - Jeffrey H. Comparin
- United States Drug Enforcement Administration, Special Testing and Research Laboratory, USA
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Carillo KJD, Wu D, Lin SC, Tsai SL, Shie JJ, Tzou DLM. 1H/ 13C chemical shifts and cation binding dataset of the corticosteroid Prednisolone titrated with metal cations. Data Brief 2019; 27:104620. [PMID: 31687439 PMCID: PMC6820118 DOI: 10.1016/j.dib.2019.104620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 09/09/2019] [Accepted: 09/26/2019] [Indexed: 11/09/2022] Open
Abstract
We here reported the 1H/13C chemical shifts, binding affinity and binding free energy of 1,4-pregnadiene-11β,17α,21-triol-3,20-dione (Prednisolone; Prd) interacting with metal cations. Six different Prd/Ni or Co mixtures were examined at different molar ratios (1:0, 1:0.1, 1:0.2, 1:0.3, 1:0.4 and 1:0.5). In this analysis, the 1H and 13C chemical shifts were measured for the Prd/cation mixtures using a Bruker AV 500 MHz spectrometer (Bruker BioSpin GmbH, Rheinstetten, Germany), equipped with a 5 mm z-gradient Prodigy BBO 500 MHz probehead at 298 K, and simulation of the 1H spectra were determined from the Daisy software package (Bruker BioSpin GmbH). Binding affinity and free energy values were deduced from the 13C NMR peak intensities involved in the cation interaction, for more insight on the steroid/cation interactions please see Magnesium and Calcium Reveal Different Chelating Effects in a Steroid Compound: A Model Study of Prednisolone Using NMR Spectroscopy [1].
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Affiliation(s)
- Kathleen Joyce D Carillo
- Taiwan International Graduate Program - SCST, Academia Sinica, Nankang, Taipei 11529, Taiwan, ROC.,Department of Applied Chemistry, National Chiao-Tung University, Hsinchu 30013, Taiwan, ROC.,Institute of Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan, ROC
| | - Danni Wu
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan, ROC
| | - Su-Ching Lin
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan, ROC
| | - Shen-Long Tsai
- Chemical Engineering Department of NTUST, Taipei 10607, Taiwan, ROC
| | - Jiun-Jie Shie
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan, ROC
| | - Der-Lii M Tzou
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan, ROC.,Department of Applied Chemistry, National Chia-Yi University, Chia-Yi 60004, Taiwan, ROC
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Carillo KD, Wu D, Lin SC, Tsai SL, Shie JJ, Tzou DLM. Magnesium and calcium reveal different chelating effects in a steroid compound: A model study of prednisolone using NMR spectroscopy. Steroids 2019; 150:108429. [PMID: 31229509 DOI: 10.1016/j.steroids.2019.108429] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 05/16/2019] [Accepted: 06/17/2019] [Indexed: 11/21/2022]
Abstract
In this work, we used high resolution NMR spectroscopy to investigate metal cation chelation by the steroidal drug 1,4-pregnadiene-11β,17α,21-triol-3,20-dione (Prednisolone; abbreviated as Prd). Prd/MgCl2 and Prd/CaCl2 mixtures were prepared at eight different molar ratios. Using two-dimensional 1H/13C heteronuclear correlation spectroscopy, we were able to resolve most of the 1H signals, except those at 1.4-1.55 ppm, where signals for H15β, H16α and Me-19 are superimposed. The chelation sites were determined by the cation concentration-dependent 13C signals. Both ring A and ring D of Prd were found to be involved in Mg2+ chelation, whereas only ring A was involved in Ca2+ chelation. The dihedral angles deduced from the 3JH-H coupling constants indicated that ring D of Prd might undergo rather small, but different, distortions in the presence of Mg2+ and Ca2+. Additionally, using the continuous variation method, we deduced that the stoichiometric ratios of the Prd/Mg2+ and Prd/Ca2+ complexes were 1:1 and 2:1, respectively. All of the evidence led us to conclude that the Prd/Mg2+ and Prd/Ca2+ complexes are mediated by different chelating mechanisms.
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Affiliation(s)
- Kathleen D Carillo
- International Graduate Program, SCST, Academia Sinica, Nankang, Taipei 11529, Taiwan, ROC; The Department of Applied Chemistry, National Chiao-Tung University, Hsinchu 30013, Taiwan, ROC; Institute of Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan, ROC
| | - Danni Wu
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan, ROC
| | - Su-Ching Lin
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan, ROC
| | - Shen-Long Tsai
- Chemical Engineering Department of NTUST, Taipei 10607, Taiwan, ROC
| | - Jiun-Jie Shie
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan, ROC
| | - Der-Lii M Tzou
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 11529, Taiwan, ROC; Department of Applied Chemistry, National Chia-Yi University, Chia-Yi 60004, Taiwan, ROC.
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