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Guan L, Wang Y, Lin L, Zou Y, Qiu L. Variations in Blood Copper and Possible Mechanisms During Pregnancy. Biol Trace Elem Res 2024; 202:429-441. [PMID: 37777692 DOI: 10.1007/s12011-023-03716-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 05/24/2023] [Indexed: 10/02/2023]
Abstract
Copper (Cu), an essential trace element, is crucial for both the mother and fetus. Currently, an increasing number of studies have focused on blood copper levels during pregnancy. Studies have found that blood copper levels in pregnant women are higher than those in reproductive-age women, but the trend, mainly in the 2nd and 3rd trimester, is still controversial. Most studies showed that blood copper levels gradually increased during pregnancy, while some studies found that blood copper levels remained stable or even decreased in the 3rd trimester. The possible mechanisms of variations in blood copper during pregnancy include the influence of estrogen (hepatic uptake and excretion, ceruloplasmin synthesis, maternal-fetal transport, etc.), the interaction of other trace elements (Fe, Zn, etc.) and other factors. Among them, maternal-fetal copper transport caused by elevated estrogen may be the main reason for the inconsistencies observed in the 2nd and 3rd trimester during pregnancy. However, there are some mechanisms require further investigation. In the future, the trend and mechanisms of blood copper during pregnancy should be explored more deeply to help doctors better monitor copper status and detect copper abnormalities in time.
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Affiliation(s)
- Lihua Guan
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, 100730, People's Republic of China
| | - Yifei Wang
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, 100730, People's Republic of China
| | - Liling Lin
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, 100730, People's Republic of China
| | - Yutong Zou
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, 100730, People's Republic of China
| | - Ling Qiu
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, 100730, People's Republic of China.
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, 100730, People's Republic of China.
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Automated assays for trace elements and ferritin measurement in saliva of pigs: Analytical validation and a pilot application to evaluate different iron status. Res Vet Sci 2022; 152:410-416. [PMID: 36116417 DOI: 10.1016/j.rvsc.2022.09.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 11/23/2022]
Abstract
The aim of this study was to validate automated methods to measure iron (Fe), zinc (Zn), copper (Cu) and ferritin in pig saliva samples. A complete analytical validation was performed of all assays. In addition, these methods were applied to saliva of Fe supplemented (n = 22) and non-supplemented (n = 20) piglets. All assays were able to measure these biomarkers in pig saliva with adequate precision, accuracy and high sensitivity and, in case of trace elements without needing a deproteinization pre-process. The group of piglets supplemented with Fe presented significantly higher levels of ferritin and Zn in saliva. In conclusion, the automated assays evaluated were able to measure Fe, Zn, Cu and ferritin in saliva of pigs, and in case of trace elements, they have the advantage of not needing a deproteinization pre-treatment and thus these analytes can be measured in a simple and fast manner.
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Ajsuvakova OP, Skalnaya MG, Michalke B, Tinkov AA, Serebryansky EP, Karganov MY, Medvedeva YS, Skalny AV. Alteration of iron (Fe), copper (Cu), zinc (Zn), and manganese (Mn) tissue levels and speciation in rats with desferioxamine-induced iron deficiency. Biometals 2021; 34:923-936. [PMID: 34003408 DOI: 10.1007/s10534-021-00318-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 05/08/2021] [Indexed: 11/29/2022]
Abstract
The objective of the present study was to investigate the impact of iron deficiency and iron replenishment on serum iron (Fe), copper (Cu), manganese (Mn), and zinc (Zn) speciation and tissue accumulation in a deferrioxamine-induced model of iron deficiency. A total of 26 male Wistar rats were divided into three groups: control; Fe-deficient; Fe-replenished (with iron (II) gluconate). Serum ferritin and transferrin levels were assessed using immunoturbudimetric method. Liver, spleen, and serum metal levels were assessed using ICP-MS. Speciation analysis was performed using a hyphenated HPLC-ICP-MS technique. Desferrioxamine injections resulted in a significant decrease in tissue iron content that was reversed by Fe supplementation. Iron speciation revealed a significant increase in serum transferrin-bound iron and reduced ferritin-bound Fe levels. Serum but not tissue Cu levels were characterized by a significant decrease in hypoferremic rats, whereas ceruloplasmin-bound fraction tended to increase. At the same time, Zn levels were found to be higher in liver, spleen, and serum of Fe-deficient rats with a predominant increase in low molecular weight fraction.Both iron-deficient and iron-replenished rats were characteirzed by increased transferrin-bound Mn levels and reduced low-molecular weight fraction. Hypothetically, these differences may be associated with impaired Fe metabolism under Fe-deficient conditions predisposing to impairment of essential metal handling. However, further studies aimed at assessment of the impact on Fe deficiency on metal metabolism are highly required.
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Affiliation(s)
- Olga P Ajsuvakova
- Micronutrients Ltd, Moscow, Russia. .,Odintsovo Distr., All-Russian Research Institute of Phytopathology, Bolshie Vyazemy, Moscow reg, Russia. .,Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg, Russia.
| | | | - Bernhard Michalke
- Helmholtz Zentrum München, Ingolstädter Landstraße 1, Neuherberg, Germany
| | - Alexey A Tinkov
- Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg, Russia.,IM Sechenov First Moscow State Medical University (Sechenov University), 119146, Moscow, Russia.,Orenburg State University, Moscow, Russia.,K.G. Razumovsky Moscow State University of Technologies and Management, Moscow, Russia
| | | | | | - Yulia S Medvedeva
- Institute of General Pathology and Pathophysiology, 125315, Moscow, Russia
| | - Anatoly V Skalny
- Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg, Russia.,IM Sechenov First Moscow State Medical University (Sechenov University), 119146, Moscow, Russia.,Orenburg State University, Moscow, Russia.,K.G. Razumovsky Moscow State University of Technologies and Management, Moscow, Russia
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Ramzan R, Kadenbach B, Vogt S. Multiple Mechanisms Regulate Eukaryotic Cytochrome C Oxidase. Cells 2021; 10:cells10030514. [PMID: 33671025 PMCID: PMC7997345 DOI: 10.3390/cells10030514] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/22/2021] [Accepted: 02/22/2021] [Indexed: 02/07/2023] Open
Abstract
Cytochrome c oxidase (COX), the rate-limiting enzyme of mitochondrial respiration, is regulated by various mechanisms. Its regulation by ATP (adenosine triphosphate) appears of particular importance, since it evolved early during evolution and is still found in cyanobacteria, but not in other bacteria. Therefore the "allosteric ATP inhibition of COX" is described here in more detail. Most regulatory properties of COX are related to "supernumerary" subunits, which are largely absent in bacterial COX. The "allosteric ATP inhibition of COX" was also recently described in intact isolated rat heart mitochondria.
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Affiliation(s)
- Rabia Ramzan
- Cardiovascular Research Laboratory, Biochemical-Pharmacological Center, Philipps-University Marburg, Karl-von-Frisch-Strasse 1, D-35043 Marburg, Germany;
| | - Bernhard Kadenbach
- Fachbereich Chemie, Philipps-University, D-35032 Marburg, Germany
- Correspondence:
| | - Sebastian Vogt
- Department of Heart Surgery, Campus Marburg, University Hospital of Giessen and Marburg, D-35043 Marburg, Germany;
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Ogawa M, Kanda T, Suganami A, Nakamoto S, Win NN, Tamura Y, Nakamura M, Matsuoka S, Yokosuka O, Kato N, Ohara O, Okamoto H, Moriyama M, Shirasawa H. Antiviral activity of zinc sulfate against hepatitis A virus replication. Future Virol 2019. [DOI: 10.2217/fvl-2019-0031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Masahiro Ogawa
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Kanto, 173-8610, Japan
| | - Tatsuo Kanda
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Kanto, 173-8610, Japan
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Akiko Suganami
- Department of Bioinformatics, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Shingo Nakamoto
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
- Department of Molecular Virology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Nan Nwe Win
- Department of Molecular Virology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Yutaka Tamura
- Department of Bioinformatics, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Masato Nakamura
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Shunichi Matsuoka
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Kanto, 173-8610, Japan
| | - Osamu Yokosuka
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Naoya Kato
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Osamu Ohara
- Kazusa DNA Research Institute, Kisarazu, Kanto, 292-0818, Japan
| | - Hiroaki Okamoto
- Division of Virology, Department of Infection & Immunity, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Kanto, 329-0498, Japan
| | - Mitsuhiko Moriyama
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Kanto, 173-8610, Japan
| | - Hiroshi Shirasawa
- Department of Molecular Virology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
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