1
|
Sardarabadi H, Darvishi MH, Zohrab F, Javadi H. Nanophytomedicine: A promising practical approach in phytotherapy. Phytother Res 2024; 38:3607-3644. [PMID: 38725270 DOI: 10.1002/ptr.8230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 07/12/2024]
Abstract
The long and rich history of herbal therapeutic nutrients is fascinating. It is incredible to think about how ancient civilizations used plants and herbs to treat various ailments and diseases. One group of bioactive phytochemicals that has gained significant attention recently is dietary polyphenols. These compounds are commonly found in a variety of fruits, vegetables, spices, nuts, drinks, legumes, and grains. Despite their incredible therapeutic properties, one challenge with polyphenols is their poor water solubility, stability, and bioavailability. This means that they are not easily absorbed by the body when consumed in essential diets. Because of structural complexity, polyphenols with high molecular weight cannot be absorbed in the small intestine and after arriving in the colon, they are metabolized by gut microbiota. However, researchers are constantly working on finding solutions to enhance the bioavailability and absorption of these compounds. This study aims to address this issue by applying nanotechnology approaches to overcome the challenges of the therapeutic application of dietary polyphenols. This combination of nanotechnology and phytochemicals could cause a completely new field called nanophytomedicine or herbal nanomedicine.
Collapse
Affiliation(s)
- Hadi Sardarabadi
- Department of Physiology and Pharmacology, School of Medicine, Qom University of Medical Sciences, Qom, Iran
| | - Mohammad Hasan Darvishi
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Fatemeh Zohrab
- Department of Medical Science, Qom Branch, Islamic Azad University, Qom, Iran
| | - Hamidreza Javadi
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| |
Collapse
|
2
|
Liu T, Zhang M, Hanson S, Juarez R, Wilson S, Schroeder H, Li Q, Zhu L, Zhang G, Blood AB. H 2S Increases Blood Pressure via Activation of L-Type Calcium Channels with Mediation by HS • Generated from Reactions with Oxyhemoglobin. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305866. [PMID: 38685626 PMCID: PMC11234399 DOI: 10.1002/advs.202305866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 03/04/2024] [Indexed: 05/02/2024]
Abstract
Although the gasotransmitter hydrogen sulfide (H2S) is well known for its vasodilatory effects, H2S also exhibits vasoconstricting properties. Herein, it is demonstrated that administration of H2S as intravenous sodium sulfide (Na2S) increased blood pressure in sheep and rats, and this effect persisted after H2S has disappeared from the blood. Inhibition of the L-type calcium channel (LTCC) diminished the hypertensive effects. Incubation of Na2S with whole blood, red blood cells, methemoglobin, or oxyhemoglobin produced a hypertensive product of H2S, which is not hydrogen thioperoxide, metHb-SH- complexes, per-/poly- sulfides, or thiolsulfate, but rather a labile intermediate. One-electron oxidation of H2S by oxyhemoglobin generated its redox cousin, sulfhydryl radical (HS•). Consistent with the role of HS• as the hypertensive intermediate, scavenging HS• inhibited Na2S-induced vasoconstriction and activation of LTCCs. In conclusion, H2S causes vasoconstriction that is dependent on the activation of LTCCs and generation of HS• by oxyhemoglobin.
Collapse
Affiliation(s)
- Taiming Liu
- Division of NeonatologyDepartment of PediatricsLoma Linda University School of MedicineLoma LindaCA92354USA
| | - Meijuan Zhang
- Division of NeonatologyDepartment of PediatricsLoma Linda University School of MedicineLoma LindaCA92354USA
| | - Shawn Hanson
- Lawrence D. Longo Center for Perinatal BiologyLoma Linda University School of MedicineLoma LindaCA92354USA
| | - Rucha Juarez
- Lawrence D. Longo Center for Perinatal BiologyLoma Linda University School of MedicineLoma LindaCA92354USA
| | - Sean Wilson
- Lawrence D. Longo Center for Perinatal BiologyLoma Linda University School of MedicineLoma LindaCA92354USA
| | - Hobe Schroeder
- Lawrence D. Longo Center for Perinatal BiologyLoma Linda University School of MedicineLoma LindaCA92354USA
| | - Qian Li
- Department of MedicineGregory Fleming James Cystic Fibrosis Research CenterUniversity of Alabama at BirminghamBirminghamAL35294UK
| | - Lingchao Zhu
- Department of ChemistryUniversity of CaliforniaRiversideCA92521USA
| | - Guangyu Zhang
- Mass spectrometry core facilityLoma Linda UniversityLoma LindaCA92354USA
| | - Arlin B. Blood
- Division of NeonatologyDepartment of PediatricsLoma Linda University School of MedicineLoma LindaCA92354USA
- Lawrence D. Longo Center for Perinatal BiologyLoma Linda University School of MedicineLoma LindaCA92354USA
| |
Collapse
|
3
|
Olson KR, Clear KJ, Takata T, Gao Y, Ma Z, Pfaff E, Travlos A, Luu J, Wilson K, Joseph Z, Kyle I, Kasko SM, Jones Jr P, Fukuto J, Xian M, Wu G, Straub KD. Reaction Mechanisms of H 2S Oxidation by Naphthoquinones. Antioxidants (Basel) 2024; 13:619. [PMID: 38790724 PMCID: PMC11117753 DOI: 10.3390/antiox13050619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/11/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024] Open
Abstract
1,4-naphthoquinones (NQs) catalytically oxidize H2S to per- and polysufides and sulfoxides, reduce oxygen to superoxide and hydrogen peroxide, and can form NQ-SH adducts through Michael addition. Here, we measured oxygen consumption and used sulfur-specific fluorophores, liquid chromatography tandem mass spectrometry (LC-MS/MS), and UV-Vis spectrometry to examine H2S oxidation by NQs with various substituent groups. In general, the order of H2S oxidization was DCNQ ~ juglone > 1,4-NQ > plumbagin >DMNQ ~ 2-MNQ > menadione, although this order varied somewhat depending on the experimental conditions. DMNQ does not form adducts with GSH or cysteine (Cys), yet it readily oxidizes H2S to polysulfides and sulfoxides. This suggests that H2S oxidation occurs at the carbonyl moiety and not at the quinoid 2 or 3 carbons, although the latter cannot be ruled out. We found little evidence from oxygen consumption studies or LC-MS/MS that NQs directly oxidize H2S2-4, and we propose that apparent reactions of NQs with inorganic polysulfides are due to H2S impurities in the polysulfides or an equilibrium between H2S and H2Sn. Collectively, NQ oxidation of H2S forms a variety of products that include hydropersulfides, hydropolysulfides, sulfenylpolysulfides, sulfite, and thiosulfate, and some of these reactions may proceed until an insoluble S8 colloid is formed.
Collapse
Affiliation(s)
- Kenneth R. Olson
- Department of Physiology, Indiana University School of Medicine—South Bend Center, South Bend, IN 46617, USA; (T.T.); (Y.G.); (Z.M.); (E.P.); (A.T.); (J.L.); (K.W.); (Z.J.); (I.K.); (S.M.K.)
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Kasey J. Clear
- Department of Chemistry and Biochemistry, Indiana University South Bend, South Bend, IN 46615, USA;
| | - Tsuyoshi Takata
- Department of Physiology, Indiana University School of Medicine—South Bend Center, South Bend, IN 46617, USA; (T.T.); (Y.G.); (Z.M.); (E.P.); (A.T.); (J.L.); (K.W.); (Z.J.); (I.K.); (S.M.K.)
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Yan Gao
- Department of Physiology, Indiana University School of Medicine—South Bend Center, South Bend, IN 46617, USA; (T.T.); (Y.G.); (Z.M.); (E.P.); (A.T.); (J.L.); (K.W.); (Z.J.); (I.K.); (S.M.K.)
| | - Zhilin Ma
- Department of Physiology, Indiana University School of Medicine—South Bend Center, South Bend, IN 46617, USA; (T.T.); (Y.G.); (Z.M.); (E.P.); (A.T.); (J.L.); (K.W.); (Z.J.); (I.K.); (S.M.K.)
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Ella Pfaff
- Department of Physiology, Indiana University School of Medicine—South Bend Center, South Bend, IN 46617, USA; (T.T.); (Y.G.); (Z.M.); (E.P.); (A.T.); (J.L.); (K.W.); (Z.J.); (I.K.); (S.M.K.)
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Anthony Travlos
- Department of Physiology, Indiana University School of Medicine—South Bend Center, South Bend, IN 46617, USA; (T.T.); (Y.G.); (Z.M.); (E.P.); (A.T.); (J.L.); (K.W.); (Z.J.); (I.K.); (S.M.K.)
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Jennifer Luu
- Department of Physiology, Indiana University School of Medicine—South Bend Center, South Bend, IN 46617, USA; (T.T.); (Y.G.); (Z.M.); (E.P.); (A.T.); (J.L.); (K.W.); (Z.J.); (I.K.); (S.M.K.)
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Katherine Wilson
- Department of Physiology, Indiana University School of Medicine—South Bend Center, South Bend, IN 46617, USA; (T.T.); (Y.G.); (Z.M.); (E.P.); (A.T.); (J.L.); (K.W.); (Z.J.); (I.K.); (S.M.K.)
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Zachary Joseph
- Department of Physiology, Indiana University School of Medicine—South Bend Center, South Bend, IN 46617, USA; (T.T.); (Y.G.); (Z.M.); (E.P.); (A.T.); (J.L.); (K.W.); (Z.J.); (I.K.); (S.M.K.)
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Ian Kyle
- Department of Physiology, Indiana University School of Medicine—South Bend Center, South Bend, IN 46617, USA; (T.T.); (Y.G.); (Z.M.); (E.P.); (A.T.); (J.L.); (K.W.); (Z.J.); (I.K.); (S.M.K.)
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Stephen M. Kasko
- Department of Physiology, Indiana University School of Medicine—South Bend Center, South Bend, IN 46617, USA; (T.T.); (Y.G.); (Z.M.); (E.P.); (A.T.); (J.L.); (K.W.); (Z.J.); (I.K.); (S.M.K.)
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Prentiss Jones Jr
- Toxicology Department, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI 49007, USA;
| | - Jon Fukuto
- Department of Chemistry, Sonoma State University, Rohnert Park, CA 94928, USA;
| | - Ming Xian
- Department of Chemistry, Brown University, Providence, RI 02912, USA;
| | - Gang Wu
- Department of Internal Medicine, University of Texas-McGovern Medical School, Houston, TX 77030, USA;
| | - Karl D. Straub
- Central Arkansas Veteran’s Healthcare System, Little Rock, AR 72205, USA;
- Departments of Medicine and Biochemistry, University of Arkansas for Medical Sciences, Little Rock, AR 72202, USA
| |
Collapse
|
4
|
Liu S, Zhao X, Ma Q, Wang G, Hou S, Ma Y, Lian Y. An ICT-FRET-based ratiometric fluorescent probe for hydrogen polysulfide based on a coumarin-naphthalimide derivative. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 302:123041. [PMID: 37354859 DOI: 10.1016/j.saa.2023.123041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 05/28/2023] [Accepted: 06/17/2023] [Indexed: 06/26/2023]
Abstract
Hydrogen polysulfide (H2Sn, n > 1), as one of the important members of reactive sulfur species (RSS), plays a vital part in the processes of both their physiology and pathology. In this work, a ratiometric fluorescent probe for H2Sn had been designed and prepared based on the combination mechanism of intramolecular charge transfer (ICT) and fluorescence resonance energy transfer (FRET). The probe chose a coumarin derivative as the energy donor, a naphthalimide derivative as the energy acceptor and 2-fluoro-5-nitrobenzoate as the H2Sn recognition group. When H2Sn was not present in the system, the ICT process of the naphthalimide acceptor was inhibited and the FRET process from the coumarin donor to the naphthalimide acceptor was turned off. When H2Sn was added, both ICT and FRET occurred due to the nucleophilic substitution-cyclization reactions between the probe and hydrogen polysulfide. In addition, the ratio value of the emission intensities at 550 nm and 473 nm (I550 nm/I473 nm) of this probe had a good linear relationship with H2Sn concentration in the range of 6.0 × 10-7-5.0 × 10-5 mol·L-1, and a detection limit of 1.8 × 10-7 mol·L-1 was obtained. The developed probe had high selectivity and sensitivity, as well as good biocompatibility. Additionally, the probe had been used to successfully image both indigenous and exogenous hydrogen polysulfide in A549 cells using confocal microscope.
Collapse
Affiliation(s)
- Shuangyu Liu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Xuan Zhao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Qiujuan Ma
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China; Henan Engineering Research Center of Modern Chinese Medicine Research, Development and Application, Zhengzhou 450046, China.
| | - Gege Wang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Shuqi Hou
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Yijie Ma
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Yujie Lian
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
| |
Collapse
|
5
|
Park H, Yoon SJ, Nam YS, Lee JY, Lee Y, Kim JY, Lee KB. Novel H 2S sensing mechanism derived from the formation of oligomeric sulfide capping the surface of gold nanourchins. RSC Adv 2023; 13:33028-33037. [PMID: 38025876 PMCID: PMC10631460 DOI: 10.1039/d3ra05527b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
A gold nanourchin (AuNU) probe with a novel sensing mechanism for monitoring H2S was developed as a feasible colorimetric sensor. In this study, AuNUs that are selectively responsive to H2S were fabricated in the presence of trisodium citrate and 1,4-hydroquinone using a seed-mediated approach. Upon exposure of the AuNU solution to H2S, the hydrosulfide ions (HS-) in the solution are converted into oligomeric sulfides by 1,4-hydroquinone used as a reducing agent during the synthesis of AuNUs. The oligomeric sulfides formed in the AuNU solution upon the addition of H2S were found to coat the surface of the AuNUs, introducing a blue shift in absorption accompanied by a color change in the solution from sky blue to light green. This colorimetric alteration by the capping of oligomeric sulfides on the surface of AuNUs is unique compared to well-known color change mechanisms, such as aggregation, etching, or growth of nanoparticles. The novel H2S sensing mechanism of the AuNUs was characterized using UV-Vis spectroscopy, high-resolution transmission microscopy, X-ray photoelectron spectroscopy, surface-enhanced Raman spectroscopy, secondary ion mass spectroscopy, liquid chromatography-tandem mass spectrometry, and atom probe tomography. H2S was reliably monitored with two calibration curves comprising two sections with different slopes according to the low (0.3-15 μM) and high (15.0-300 μM) concentration range using the optimized AuNU probe, and a detection limit of 0.29 μM was obtained in tap water.
Collapse
Affiliation(s)
- Hana Park
- Climate and Environmental Research Institute, Korea Institute of Science & Technology Hwarang-ro 14-gil 5 Seongbuk-gu Seoul 02792 Republic of Korea
| | - Su-Jin Yoon
- Climate and Environmental Research Institute, Korea Institute of Science & Technology Hwarang-ro 14-gil 5 Seongbuk-gu Seoul 02792 Republic of Korea
- Department of Energy and Environment Technology, KIST School, University of Science and Technology Seoul 02792 Republic of Korea
| | - Yun-Sik Nam
- Advanced Analysis and Data Center, Korea Institute of Science and Technology Hwarangno 14-gil 5 Seongbuk-gu Seoul 02792 Republic of Korea
| | - Ji Yeong Lee
- Advanced Analysis and Data Center, Korea Institute of Science and Technology Hwarangno 14-gil 5 Seongbuk-gu Seoul 02792 Republic of Korea
| | - Yeonhee Lee
- Advanced Analysis and Data Center, Korea Institute of Science and Technology Hwarangno 14-gil 5 Seongbuk-gu Seoul 02792 Republic of Korea
| | - Jin Young Kim
- Climate and Environmental Research Institute, Korea Institute of Science & Technology Hwarang-ro 14-gil 5 Seongbuk-gu Seoul 02792 Republic of Korea
- Department of Energy and Environment Technology, KIST School, University of Science and Technology Seoul 02792 Republic of Korea
| | - Kang-Bong Lee
- Climate and Environmental Research Institute, Korea Institute of Science & Technology Hwarang-ro 14-gil 5 Seongbuk-gu Seoul 02792 Republic of Korea
- Department of Energy and Environment Technology, KIST School, University of Science and Technology Seoul 02792 Republic of Korea
| |
Collapse
|
6
|
Olson KR, Clear KJ, Gao Y, Ma Z, Cieplik NM, Fiume AR, Gaziano DJ, Kasko SM, Luu J, Pfaff E, Travlos A, Velander C, Wilson KJ, Edwards ED, Straub KD, Wu G. Redox and Nucleophilic Reactions of Naphthoquinones with Small Thiols and Their Effects on Oxidization of H 2S to Inorganic and Organic Hydropolysulfides and Thiosulfate. Int J Mol Sci 2023; 24:ijms24087516. [PMID: 37108682 PMCID: PMC10138938 DOI: 10.3390/ijms24087516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/10/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Naphthoquinone (1,4-NQ) and its derivatives (NQs, juglone, plumbagin, 2-methoxy-1,4-NQ, and menadione) have a variety of therapeutic applications, many of which are attributed to redox cycling and the production of reactive oxygen species (ROS). We previously demonstrated that NQs also oxidize hydrogen sulfide (H2S) to reactive sulfur species (RSS), potentially conveying identical benefits. Here we use RSS-specific fluorophores, mass spectroscopy, EPR and UV-Vis spectrometry, and oxygen-sensitive optodes to examine the effects of thiols and thiol-NQ adducts on H2S-NQ reactions. In the presence of glutathione (GSH) and cysteine (Cys), 1,4-NQ oxidizes H2S to both inorganic and organic hydroper-/hydropolysulfides (R2Sn, R=H, Cys, GSH; n = 2-4) and organic sulfoxides (GSnOH, n = 1, 2). These reactions reduce NQs and consume oxygen via a semiquinone intermediate. NQs are also reduced as they form adducts with GSH, Cys, protein thiols, and amines. Thiol, but not amine, adducts may increase or decrease H2S oxidation in reactions that are both NQ- and thiol-specific. Amine adducts also inhibit the formation of thiol adducts. These results suggest that NQs may react with endogenous thiols, including GSH, Cys, and protein Cys, and that these adducts may affect both thiol reactions as well as RSS production from H2S.
Collapse
Affiliation(s)
- Kenneth R Olson
- Indiana University School of Medicine-South Bend, South Bend, IN 46617, USA
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Kasey J Clear
- Department of Chemistry and Biochemistry, Indiana University South Bend, South Bend, IN 46615, USA
| | - Yan Gao
- Indiana University School of Medicine-South Bend, South Bend, IN 46617, USA
| | - Zhilin Ma
- Indiana University School of Medicine-South Bend, South Bend, IN 46617, USA
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Nathaniel M Cieplik
- Indiana University School of Medicine-South Bend, South Bend, IN 46617, USA
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Alyssa R Fiume
- Indiana University School of Medicine-South Bend, South Bend, IN 46617, USA
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Dominic J Gaziano
- Indiana University School of Medicine-South Bend, South Bend, IN 46617, USA
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Stephen M Kasko
- Indiana University School of Medicine-South Bend, South Bend, IN 46617, USA
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Jennifer Luu
- Indiana University School of Medicine-South Bend, South Bend, IN 46617, USA
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Ella Pfaff
- Indiana University School of Medicine-South Bend, South Bend, IN 46617, USA
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Anthony Travlos
- Indiana University School of Medicine-South Bend, South Bend, IN 46617, USA
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Cecilia Velander
- Indiana University School of Medicine-South Bend, South Bend, IN 46617, USA
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Katherine J Wilson
- Indiana University School of Medicine-South Bend, South Bend, IN 46617, USA
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Elizabeth D Edwards
- Department of Chemistry and Biochemistry, Indiana University South Bend, South Bend, IN 46615, USA
| | - Karl D Straub
- Central Arkansas Veteran's Healthcare System, Little Rock, AR 72205, USA
- Departments of Medicine and Biochemistry, University of Arkansas for Medical Sciences, Little Rock, AR 72202, USA
| | - Gang Wu
- Department of Internal Medicine, The University of Texas-McGovern Medical School, Houston, TX 77030, USA
| |
Collapse
|
7
|
Naphthoquinones Oxidize H 2S to Polysulfides and Thiosulfate, Implications for Therapeutic Applications. Int J Mol Sci 2022; 23:ijms232113293. [PMID: 36362080 PMCID: PMC9657496 DOI: 10.3390/ijms232113293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 10/14/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022] Open
Abstract
1,4-Napththoquinones (NQs) are clinically relevant therapeutics that affect cell function through production of reactive oxygen species (ROS) and formation of adducts with regulatory protein thiols. Reactive sulfur species (RSS) are chemically and biologically similar to ROS and here we examine RSS production by NQ oxidation of hydrogen sulfide (H2S) using RSS-specific fluorophores, liquid chromatography-mass spectrometry, UV-Vis absorption spectrometry, oxygen-sensitive optodes, thiosulfate-specific nanoparticles, HPLC-monobromobimane derivatization, and ion chromatographic assays. We show that NQs, catalytically oxidize H2S to per- and polysulfides (H2Sn, n = 2−6), thiosulfate, sulfite and sulfate in reactions that consume oxygen and are accelerated by superoxide dismutase (SOD) and inhibited by catalase. The approximate efficacy of NQs (in decreasing order) is, 1,4-NQ ≈ juglone ≈ plumbagin > 2-methoxy-1,4-NQ ≈ menadione >> phylloquinone ≈ anthraquinone ≈ menaquinone ≈ lawsone. We propose that the most probable reactions are an initial two-electron oxidation of H2S to S0 and reduction of NQ to NQH2. S0 may react with H2S or elongate H2Sn in variety of reactions. Reoxidation of NQH2 likely involves a semiquinone radical (NQ·−) intermediate via several mechanisms involving oxygen and comproportionation to produce NQ and superoxide. Dismutation of the latter forms hydrogen peroxide which then further oxidizes RSS to sulfoxides. These findings provide the chemical background for novel sulfur-based approaches to naphthoquinone-directed therapies.
Collapse
|
8
|
Tariq U, Butt MS, Pasha I, Faisal MN. Prophylactic role of olive fruit extract against cigarette smoke-induced oxidative stress in Sprague-Dawley rats. Cell Stress Chaperones 2022; 27:545-560. [PMID: 35951259 PMCID: PMC9485526 DOI: 10.1007/s12192-022-01291-z] [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: 05/27/2022] [Revised: 07/19/2022] [Accepted: 08/01/2022] [Indexed: 11/03/2022] Open
Abstract
Cigarette smoke exposure increases the production of free radicals leading to initiation of several pathological conditions by triggering the oxidative stress and inflammatory cascade. Olive fruit owing to its unique phytochemical composition possesses antioxidant, immune modulatory, and anti-inflammatory potential. Considering the compositional alterations in olive fruits during ripening, the current experimental trail was designed to investigate the prophylactic role of green and black olives against the oxidative stress induced by cigarette smoke exposure in rats. Purposely, rats were divided into five different groups: NC (negative control; normal diet), PC [positive control; normal diet + smoke exposure (SE)], drug (normal diet + SE + citalopram), GO (normal diet + SE + green olive extract), and BO (normal diet + SE + black olive extract). Rats of all groups were exposed to cigarette smoke except "NC" and were sacrificed for collection of blood and organs after 28 days of experimental trial. The percent reduction in total oxidative stress by citalopram and green and black olive extracts in serum was 29.72, 58.69, and 57.97%, respectively, while the total antioxidant capacity increased by 30.78, 53.94, and 43.98%, accordingly in comparison to PC. Moreover, malondialdehyde (MDA) was reduced by 29.63, 42.59, and 45.70% in drug, GO, and BO groups, respectively. Likewise, green and black olive extracts reduced the leakage of hepatic enzymes in sera, alkaline phosphatase (ALP) by 23.44 and 25.80% and 35.62 and 37.61%, alanine transaminase (ALT) by 42.68 and 24.39% and 51.04 and 35.41%, and aspartate transaminase (AST) by 31.51 and 16.07% and 40.50 and 27.09% from PC and drug group, respectively. Additionally, olive extracts also maintained the antioxidant pool, i.e., superoxide dismutase, catalase, and glutathione in serum. Furthermore, histological examination revealed that olive extracts prevented the cigarette smoke-induced necrosis, pyknotic alterations, and congestion in the lung, hepatic, and renal parenchyma. Besides, gene expression analysis revealed that olive extracts and citalopram decreased the brain and lung damage caused by stress-induced upregulation of NRF-2 and MAPK signaling pathways. Hence, it can be concluded that olives (both green and black) can act as promising antioxidant in alleviating the cigarette smoke-induced oxidative stress.
Collapse
Affiliation(s)
- Urwa Tariq
- Faculty of Food, Nutrition and Home Sciences, National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
- Department of Human Nutrition and Dietetics, Riphah International University, Faisalabad, 38000, Pakistan
| | - Masood Sadiq Butt
- Faculty of Food, Nutrition and Home Sciences, National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan.
| | - Imran Pasha
- Faculty of Food, Nutrition and Home Sciences, National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Naeem Faisal
- Institute of Pharmacy, Physiology and Pharmacology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
| |
Collapse
|
9
|
Tain YL, Hsu CN. Novel Insights on Dietary Polyphenols for Prevention in Early-Life Origins of Hypertension: A Review Focusing on Preclinical Animal Models. Int J Mol Sci 2022; 23:6620. [PMID: 35743061 PMCID: PMC9223825 DOI: 10.3390/ijms23126620] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 06/12/2022] [Accepted: 06/13/2022] [Indexed: 02/01/2023] Open
Abstract
Polyphenols are the largest group of phytochemicals with health benefits. Early life appears to offer a critical window of opportunity for launching interventions focused on preventing hypertension, as increasing evidence supports the supposition that hypertension can originate in early life. Although polyphenols have antihypertensive actions, knowledge of the potential beneficial action of the early use of polyphenols to avert the development of hypertension is limited. Thus, in this review, we first provide a brief summary of the chemistry and biological function of polyphenols. Then, we present the current epidemiological and experimental evidence supporting the early-life origins of hypertension. We also document animal data on the use of specific polyphenols as an early-life intervention to protect offspring against hypertension in adulthood and discuss underlying mechanisms. Continued research into the use of polyphenols to prevent hypertension from starting early in life will have far-reaching implications for future health.
Collapse
Affiliation(s)
- You-Lin Tain
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 833, Taiwan;
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan
| | - Chien-Ning Hsu
- Department of Pharmacy, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833, Taiwan
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| |
Collapse
|
10
|
Testai L, Pagnotta E, Piragine E, Flori L, Citi V, Martelli A, Mannelli LDC, Ghelardini C, Matteo R, Suriano S, Troccoli A, Pecchioni N, Calderone V. Cardiovascular benefits of Eruca sativa mill. Defatted seed meal extract: Potential role of hydrogen sulfide. Phytother Res 2022; 36:2616-2627. [PMID: 35478197 PMCID: PMC9320972 DOI: 10.1002/ptr.7479] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/31/2022] [Accepted: 04/01/2022] [Indexed: 12/18/2022]
Abstract
Eruca sativa Mill. is an edible plant belonging to the Brassicaceae botanical family with a long story as a medicinal material, mainly linked to the presence of glucoerucin. One of the main products of this glucosinolate is erucin, a biologicallly active isothiocyanate recently recognized as a hydrogen sulfide (H2S) donor. In this work, an Eruca sativa extract has been obtained from a defatted seed meal (DSM), achieving a powder rich in thiofunctionalized glucosinolates, glucoerucin, and glucoraphanin, accounting for 95% and 5% of the total glucosinolate content (17% on a dry weight basis), associated with 13 identified phenolic acids and flavonoids accounting for 2.5%. In a cell‐free model, Eruca sativa DSM extract slowly released H2S. Moreover, this extract promoted significant hypotensive effects in hypertensive rats, and evoked dose‐dependent cardioprotection in in vivo model of acute myocardial infarct, obtained through a reversible coronary occlusion. This latter effect was sensitive to blockers of mitochondrial KATP and Kv7.4 potassium channels, suggesting a potential role of these mitochondrial channels in the protective effects of Eruca sativa DSM extract. Accordingly, Eruca sativa DSM extract reduced calcium uptake and apoptotic cell death in isolated cardiac mitochondria. Taken together, these results demonstrate that Eruca sativa DSM extract is endowed with an interesting nutraceutical profile on the cardiovascular system due to, at least in part, its H2S releasing properties. These results pave the way for future investigations on active metabolites.
Collapse
Affiliation(s)
- Lara Testai
- Department of Pharmacy, University of Pisa, Pisa, Italy.,Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy.,Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, Pisa, Italy
| | - Eleonora Pagnotta
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Bologna, Italy
| | | | - Lorenzo Flori
- Department of Pharmacy, University of Pisa, Pisa, Italy
| | | | - Alma Martelli
- Department of Pharmacy, University of Pisa, Pisa, Italy.,Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy.,Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, Pisa, Italy
| | - Lorenzo Di Cesare Mannelli
- Department of Neuroscience, Psychology, Drug Research and Child Health-Neurofarba- Pharmacology and Toxicology Section, University of Florence, Florence, Italy
| | - Carla Ghelardini
- Department of Neuroscience, Psychology, Drug Research and Child Health-Neurofarba- Pharmacology and Toxicology Section, University of Florence, Florence, Italy
| | - Roberto Matteo
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Bologna, Italy
| | - Serafino Suriano
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Foggia, Italy
| | - Antonio Troccoli
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Foggia, Italy
| | - Nicola Pecchioni
- CREA-Council for Agricultural Research and Economics, Research Centre for Cereal and Industrial Crops, Foggia, Italy
| | - Vincenzo Calderone
- Department of Pharmacy, University of Pisa, Pisa, Italy.,Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy.,Interdepartmental Research Centre of Ageing Biology and Pathology, University of Pisa, Pisa, Italy
| |
Collapse
|
11
|
Olson KR, Clear KJ, Derry PJ, Gao Y, Ma Z, Wu G, Kent TA, Straub KD. Coenzyme Q 10 and related quinones oxidize H 2S to polysulfides and thiosulfate. Free Radic Biol Med 2022; 182:119-131. [PMID: 35202787 DOI: 10.1016/j.freeradbiomed.2022.02.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 02/03/2022] [Accepted: 02/18/2022] [Indexed: 12/11/2022]
Abstract
In the canonical pathway for mitochondrial H2S oxidation electrons are transferred from sulfide:quinone oxidoreductase (SQR) to complex III via ubiquinone (CoQ10). We previously observed that a number of quinones directly oxidize H2S and we hypothesize that CoQ10 may have similar properties. Here we examine H2S oxidation by CoQ10 and more hydrophilic, truncated forms, CoQ1 and CoQ0, in buffer using H2S and polysulfide fluorophores (AzMC and SSP4), silver nanoparticles to measure thiosulfate (H2S2O3), mass spectrometry to identify polysulfides and O2-sensitive optodes to measure O2 consumption. We show that all three quinones concentration-dependently catalyze the oxidization of H2S to polysulfides and thiosulfate in buffer with the potency CoQ0>CoQ1>CoQ10 and that CoQ0 specifically oxidizes H2S to per-polysulfides, H2S2,3,4. These reactions consume and require oxygen and are augmented by addition of SOD suggesting that the quinones, not superoxide, oxidize H2S. Related quinones, MitoQ, menadione and idebenone, oxidize H2S in similar reactions. Exogenous CoQ0 decreases cellular H2S and increases polysulfides and thiosulfate production and this is also O2-dependent, suggesting that the quinone has similar effects on sulfur metabolism in cells. Collectively, these results suggest an additional endogenous mechanism for H2S metabolism and a potential therapeutic approach in H2S-related metabolic disorders.
Collapse
Affiliation(s)
- Kenneth R Olson
- Indiana University School of Medicine - South Bend Center, South Bend, IN, 46617, USA; Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, 46556, USA.
| | - Kasey J Clear
- Department of Chemistry and Biochemistry, Indiana University South Bend, South Bend, IN, 46615, USA
| | - Paul J Derry
- Department of Internal Medicine, University of Texas - McGovern Medical School at Houston, Houston, TX, 77030, USA
| | - Yan Gao
- Indiana University School of Medicine - South Bend Center, South Bend, IN, 46617, USA
| | - Zhilin Ma
- Indiana University School of Medicine - South Bend Center, South Bend, IN, 46617, USA; Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Gang Wu
- Department of Internal Medicine, University of Texas - McGovern Medical School at Houston, Houston, TX, 77030, USA
| | - Thomas A Kent
- Center for Genomics and Precision Medicine, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, 77030, USA; Department of Chemistry, Rice University, Houston, TX, 77005, United States; Stanley H. Appel Department of Neurology, Houston Methodist Hospital and Research Institute, 6560 Fannin Street, Houston, TX, 77030, United States
| | - Karl D Straub
- Central Arkansas Veteran's Healthcare System, Little Rock, AR, 72205, USA; Departments of Medicine and Biochemistry, University of Arkansas for Medical Sciences, Little Rock, AR, 72202, USA
| |
Collapse
|
12
|
Gallic Acid Improves Diabetic Steatosis by Downregulating MicroRNA-34a-5p through Targeting NFE2L2 Expression in High-Fat Diet-Fed db/db Mice. Antioxidants (Basel) 2021; 11:antiox11010092. [PMID: 35052597 PMCID: PMC8773012 DOI: 10.3390/antiox11010092] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/24/2021] [Accepted: 12/28/2021] [Indexed: 12/18/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) has become epidemic worldwide and is strongly associated with nonalcoholic fatty liver disease (NAFLD). The molecular mechanisms of microRNAs in NAFLD and T2DM development and the corresponding therapies remain unclear. We performed microRNA microarray validation to determine whether hepatic miR-34a-5p was significantly upregulated in db/db mice fed with a high-fat diet (HFD), a mouse model of T2DM with steatohepatitis. The potential role of miR-34a-5p and gallic acid (GA) in regulating hepatic lipid metabolism and diabetic steatosis was explored. GA improved the activities of antioxidant enzymes and suppressed lipid accumulation in the HFD-induced steatotic liver of db/db mice. In vitro, the silencing of miR-34a-5p in hepatocyte HepG2 cells ameliorated high glucose + oleic acid/palmitic acid mixture–induced accumulation of cellular triglycerides. We identified nuclear factor erythroid-derived 2-like 2 (NFE2L2) as a direct target of miR-34a-5p. Reduction in intracellular triglyceride and the expression levels of sterol regulatory element-binding protein 1 and fatty acid synthase by GA were mediated by the inhibition of miR-34a-5p expression in HepG2 cells. The findings suggest that GA improves hepatic lipogenesis by downregulating miR-34a-5p by suppressing NFE2L2 expression, indicating the potential therapeutic role of GA or an NFE2L2-activating agent in diabetic fatty liver disease.
Collapse
|
13
|
Mikhailov OV. The Physical Chemistry and Chemical Physics (PCCP) Section of the International Journal of Molecular Sciences in Its Publications: The First 300 Thematic Articles in the First 3 Years. Int J Mol Sci 2021; 23:241. [PMID: 35008667 PMCID: PMC8745423 DOI: 10.3390/ijms23010241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 12/15/2021] [Indexed: 11/16/2022] Open
Abstract
The Physical Chemistry and Chemical Physics Section (PCCP Section) is one of the youngest among the sections of the International Journal of Molecular Sciences (IJMS)-the year 2021 will only mark three years since its inception [...].
Collapse
Affiliation(s)
- Oleg V Mikhailov
- Department of Analytical Chemistry, Certification and Quality Management, Kazan National Research Technological University, K. Marx Street 68, 420015 Kazan, Russia
| |
Collapse
|
14
|
Tariq U, Butt MS, Pasha I, Faisal MN. Neuroprotective effects of Olea europaea L. fruit extract against cigarette smoke-induced depressive-like behaviors in Sprague-Dawley rats. J Food Biochem 2021; 45:e14014. [PMID: 34796529 DOI: 10.1111/jfbc.14014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 10/19/2021] [Accepted: 10/26/2021] [Indexed: 12/01/2022]
Abstract
Depression is broadly acclaimed as a mental health anomaly and despite advancements in the development of antidepressant drugs, they are linked with side effects. Dietary modifications and medicinal plants like olives can be used as effective strategies due to their antioxidant, immune-modulatory, antiinflammatory, and anticonvulsant properties. Considering the compositional alterations in olive fruits during ripening, the antidepressant potential of olive fruits at different degrees of ripeness, that is, un-ripened (green) and ripened (black) was investigated. Rats were randomly divided into five groups: G0 (Normal diet), G1 (Normal diet + smoke exposure (SE), G2 (Normal diet + SE + Citalopram), G3 (Normal diet + SE + Green olive extract), and G4 (Normal diet + SE + Black olive extract). Depressive-like behaviors were induced in all groups through cigarette smoke exposure except G0 . Green and black olive extracts prevented depressive behaviors by reducing the immobility time of rats in forced swim test and tail suspension test while increased the latency to respond in hot plate assay. Moreover, lipid peroxidation in brain tissue was reduced with citalopram, green, and black olive extracts. Additionally, treatments also enhanced the antioxidant pool of brain tissues. Histological examination revealed that olive extracts and citalopram prevented cigarette smoke-induced moderate to severe necrosis and congestion in the brain parenchyma and elucidated antidepressant potential by improving the expression of monoamine oxidase-A, solute carrier family 6 member 4, and brain-derived neurotrophic factor genes. Conclusively, olives may act as a promising antidepressant agent in ameliorating cigarette smoke-induced depressive-like behaviors. PRACTICAL APPLICATIONS: Olive extracts at both ripening stages revealed an antidepressant-like effect almost similar to the standard antidepressant drug and also prevented oxidative damages. Therefore, from the current findings, it can be recommended that food ingredients with antidepressant potential like olives should be incorporated in future interventions to combat depression/psychiatric anomalies and diet therapy should be encouraged to alleviate lifestyle-related disorders.
Collapse
Affiliation(s)
- Urwa Tariq
- Faculty of Food Nutrition and Home Sciences, National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Masood Sadiq Butt
- Faculty of Food Nutrition and Home Sciences, National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Imran Pasha
- Faculty of Food Nutrition and Home Sciences, National Institute of Food Science and Technology, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Naeem Faisal
- Faculty of Veterinary Science, Institute of Pharmacy, Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan
| |
Collapse
|
15
|
Olson KR. A Case for Hydrogen Sulfide Metabolism as an Oxygen Sensing Mechanism. Antioxidants (Basel) 2021; 10:antiox10111650. [PMID: 34829521 PMCID: PMC8615108 DOI: 10.3390/antiox10111650] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/08/2021] [Accepted: 10/13/2021] [Indexed: 12/30/2022] Open
Abstract
The ability to detect oxygen availability is a ubiquitous attribute of aerobic organisms. However, the mechanism(s) that transduce oxygen concentration or availability into appropriate physiological responses is less clear and often controversial. This review will make the case for oxygen-dependent metabolism of hydrogen sulfide (H2S) and polysulfides, collectively referred to as reactive sulfur species (RSS) as a physiologically relevant O2 sensing mechanism. This hypothesis is based on observations that H2S and RSS metabolism is inversely correlated with O2 tension, exogenous H2S elicits physiological responses identical to those produced by hypoxia, factors that affect H2S production or catabolism also affect tissue responses to hypoxia, and that RSS efficiently regulate downstream effectors of the hypoxic response in a manner consistent with a decrease in O2. H2S-mediated O2 sensing is then compared to the more generally accepted reactive oxygen species (ROS) mediated O2 sensing mechanism and a number of reasons are offered to resolve some of the confusion between the two.
Collapse
Affiliation(s)
- Kenneth R Olson
- Department of Physiology, Indiana University School of Medicine-South Bend, South Bend, IN 46617, USA
| |
Collapse
|
16
|
Advances in the Chemistry of Porphyrins and Related Macrocycles. Int J Mol Sci 2021; 22:ijms22147487. [PMID: 34299107 PMCID: PMC8307316 DOI: 10.3390/ijms22147487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 07/07/2021] [Indexed: 12/21/2022] Open
Abstract
Porphyrins and their analogues feature remarkably in nature, being prosthetic groups in a wide variety of primary metabolites playing a pivotal role in many biological processes [...].
Collapse
|