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Tok A, Özer A, Baylan FA, Kurutaş EB. Copper/Zinc Ratio Can Be a Marker to Diagnose Ectopic Pregnancy and Is Associated with the Oxidative Stress Status of Ectopic Pregnancy Cases. Biol Trace Elem Res 2021; 199:2096-2103. [PMID: 32803526 DOI: 10.1007/s12011-020-02327-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 08/03/2020] [Indexed: 12/12/2022]
Abstract
It was aimed to evaluate serum zinc and copper levels and oxidative stress parameters in ectopic pregnancy cases, healthy pregnant women, and healthy non-pregnant women. In this cross-sectional case-control study, 30 patients diagnosed with tubal ectopic pregnancy in the gynecology clinic of a tertiary hospital constituted the study group. A healthy pregnant control group (n = 30) was formed of age, body mass index (BMI), and gestational week-matched subjects, and a healthy non-pregnant control group (n = 30) was formed of age and BMI-matched women. The groups were compared in terms of demographic characteristics and laboratory parameters including serum zinc (Zn) level, serum copper (Cu) level, serum malondialdehyde (MDA) level, serum catalase (CAT) activity, serum glutathione peroxidase (GPX) activity, and serum superoxide dismutase (SOD) activity. The groups were similar in respect of demographic characteristics. In the ectopic pregnancy group, serum GPX activity and Cu level were significantly lower, and serum SOD and CAT activity and Zn and MDA levels were higher compared with those of the healthy pregnant and healthy non-pregnant groups. The Cu/Zn ratio showed a significant, positive correlation with the serum GPX activity and serum progesterone level and a negative correlation with serum SOD and CAT activity. When 1.14 was taken as the cutoff value, sensitivity and specificity of the Cu/Zn ratio to determine ectopic pregnancy were 73.3% and 80.0%, respectively. Comparing the area under curve (AUC) in the ROC (receiver operating characteristic) curve analysis, the Cu/Zn ratio was determined to be more valuable than the Cu or Zn values alone in predicting ectopic pregnancy. In correlation analysis, serum beta hCG level showed a negative correlation with SOD and CAT activities and Zn levels. Serum progesterone level showed a negative correlation with serum CAT and SOD activities and MDA and zinc levels and a positive correlation with serum GPX activity and serum copper level (p < 0.05 for all). The current study can be considered of value as the first study in literature to show a significantly lower serum Zn level and higher serum Cu level in ectopic pregnancy cases compared with healthy pregnant control cases. This is also the first study to have revealed an association between the serum Cu/Zn ratio, oxidative status, and ectopic pregnancy. Furthermore, the serum Cu/Zn ratio was found to be useful in the diagnosis of ectopic pregnancy cases.
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Affiliation(s)
- Abdullah Tok
- Department of Obstetrics and Gynecology, Kahramanmaraş Sütçü İmam University Hospital, Kahramanmaras, Turkey
| | - Alev Özer
- Department of Obstetrics and Gynecology, Kahramanmaraş Sütçü İmam University Hospital, Kahramanmaras, Turkey.
| | - Filiz Alkan Baylan
- Department of Biochemistry, Kahramanmaraş Sütçü İmam University Hospital, Kahramanmaras, Turkey
| | - Ergül Bilge Kurutaş
- Department of Biochemistry, Kahramanmaraş Sütçü İmam University Hospital, Kahramanmaras, Turkey
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Sharma Y, Liu J, Kristian KE, Follenzi A, Gupta S. In Atp7b-/- Mice Modeling Wilson's Disease Liver Repopulation With Bone Marrow-Derived Myofibroblasts or Inflammatory Cells and Not Hepatocytes Is Deleterious. Gene Expr 2018; 19:15-24. [PMID: 30029699 PMCID: PMC6290324 DOI: 10.3727/105221618x15320123457380] [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] [Indexed: 11/24/2022]
Abstract
In Wilson's disease, Atp7b mutations impair copper excretion with liver or brain damage. Healthy transplanted hepatocytes repopulate the liver, excrete copper, and reverse hepatic damage in animal models of Wilson's disease. In Fah-/- mice with tyrosinemia and α-1 antitrypsin mutant mice, liver disease is resolved by expansions of healthy hepatocytes derived from transplanted healthy bone marrow stem cells. This potential of stem cells has not been defined for Wilson's disease. In diseased Atp7b-/- mice, we reconstituted bone marrow with donor cells expressing green fluorescent protein reporter from healthy transgenic mice. Mature hepatocytes originating from donor bone marrow were identified by immunostaining for green fluorescence protein and bile canalicular marker, dipeptidylpeptidase-4. Mesenchymal and inflammatory cell markers were used for other cells from donor bone marrow cells. Gene expression, liver tests, and tissues were analyzed for outcomes in Atp7b-/- mice. After bone marrow transplantation in Atp7b-/- mice, donor-derived hepatocytes containing bile canaliculi appeared within weeks. Despite this maturity, donor-derived hepatocytes neither divided nor expanded. The liver of Atp7b-/- mice was not repopulated by donor-derived hepatocytes: Atp7b mRNA remained undetectable; liver tests, copper content, and fibrosis actually worsened. Restriction of proliferation in hepatocytes accompanied oxidative DNA damage. By contrast, donor-derived mesenchymal and inflammatory cells extensively proliferated. These contributed to fibrogenesis through greater expression of inflammatory cytokines. In Wilson's disease, donor bone marrow-derived cells underwent different fates: hepatocytes failed to proliferate; inflammatory cells proliferated to worsen disease outcomes. This will help guide stem cell therapies for conditions with proinflammatory or profibrogenic microenvironments.
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Affiliation(s)
- Yogeshwar Sharma
- *Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Jinghua Liu
- †Department of Obstetrics and Gynecology, Shanghai Public Health Clinical Center, Shanghai, P.R. China
| | | | - Antonia Follenzi
- §Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
- ¶Department of Health Sciences, Università del Piemonte Orientale “A. Avogadro”, Novara, Italy
| | - Sanjeev Gupta
- *Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
- §Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
- #Marion Bessin Liver Research Center, Diabetes Center, Cancer Center, and Ruth L. and David S. Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, NY, USA
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Prasnicka A, Cermanova J, Hroch M, Dolezelova E, Rozkydalova L, Smutny T, Carazo A, Chladek J, Lenicek M, Nachtigal P, Vitek L, Pavek P, Micuda S. Iron depletion induces hepatic secretion of biliary lipids and glutathione in rats. Biochim Biophys Acta Mol Cell Biol Lipids 2017; 1862:1469-1480. [PMID: 28888833 DOI: 10.1016/j.bbalip.2017.09.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 08/16/2017] [Accepted: 09/05/2017] [Indexed: 12/14/2022]
Abstract
Iron depletion (ID) has been shown to induce the liver expression of Cyp7a1, the rate-limiting enzyme initiating conversion of cholesterol to bile acids (BA), although the effect on bile acids metabolism and bile production is unknown. Therefore, we investigated changes in bile secretion and BA synthesis during diet-induced iron depletion (ID) in rats. ID increased bile flow along with augmented biliary excretion of bile acids, glutathione, cholesterol and phospholipids. Accordingly, we found transcriptional upregulation of the Cyp7a1, Cyp8b1, and Cyp27a1 BA synthetic enzymes, as well as induction of the Abcg5/8 cholesterol transporters in ID rat livers. In contrast, intravenous infusion of 3H-taurocholate failed to elicit any difference in biliary secretion of this compound in the ID rats. This corresponded with unchanged expression of canalicular rate-limiting transporters for BA as well as glutathione. We also observed that ID substantially changed the spectrum of BA in bile and decreased plasma concentrations of BA and cholesterol. Experiments with differentiated human hepatic HepaRG cells confirmed human CYP7A1 orthologue upregulation resulting from reduced iron concentrations. Results employing a luciferase reporter gene assay suggest that the transcriptional activation of the CYP7A1 promoter under ID conditions works independent of farnesoid X (FXR), pregnane X (PXR) and liver X (LXRα) receptors activation. It can be concluded that this study characterizes the molecular mechanisms of modified bile production as well as cholesterol as along with BA homeostasis during ID. We propose complex upregulation of BA synthesis, and biliary cholesterol secretion as the key factors affected by ID.
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Affiliation(s)
- Alena Prasnicka
- Department of Pharmacology, Charles University, Faculty of Medicine in Hradec Kralove, Czech Republic
| | - Jolana Cermanova
- Department of Pharmacology, Charles University, Faculty of Medicine in Hradec Kralove, Czech Republic
| | - Milos Hroch
- Department of Medical Biochemistry, Charles University, Faculty of Medicine in Hradec Kralove, Czech Republic
| | - Eva Dolezelova
- Department of Biological and Medical Sciences, Charles University, Faculty of Pharmacy in Hradec Kralove, Czech Republic
| | - Lucie Rozkydalova
- Department of Pharmacology, Charles University, Faculty of Medicine in Hradec Kralove, Czech Republic; Department of Pharmacology and Toxicology, Charles University, Faculty of Pharmacy in Hradec Kralove, Czech Republic
| | - Tomas Smutny
- Department of Pharmacology and Toxicology, Charles University, Faculty of Pharmacy in Hradec Kralove, Czech Republic
| | - Alejandro Carazo
- Department of Pharmacology and Toxicology, Charles University, Faculty of Pharmacy in Hradec Kralove, Czech Republic
| | - Jaroslav Chladek
- Department of Pharmacology, Charles University, Faculty of Medicine in Hradec Kralove, Czech Republic
| | - Martin Lenicek
- Department of Medical Biochemistry and Laboratory Diagnostics, Charles University, 1st Faculty of Medicine, Prague, Czech Republic
| | - Petr Nachtigal
- Department of Biological and Medical Sciences, Charles University, Faculty of Pharmacy in Hradec Kralove, Czech Republic
| | - Libor Vitek
- Department of Medical Biochemistry and Laboratory Diagnostics, Charles University, 1st Faculty of Medicine, Prague, Czech Republic; 4th Department of Internal Medicine, 1st Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Petr Pavek
- Department of Pharmacology and Toxicology, Charles University, Faculty of Pharmacy in Hradec Kralove, Czech Republic
| | - Stanislav Micuda
- Department of Pharmacology, Charles University, Faculty of Medicine in Hradec Kralove, Czech Republic.
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Squitti R, Siotto M, Cassetta E, El Idrissi IG, Colabufo NA. Measurements of serum non-ceruloplasmin copper by a direct fluorescent method specific to Cu(II). Clin Chem Lab Med 2017; 55:1360-1367. [PMID: 28076308 DOI: 10.1515/cclm-2016-0843] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 12/05/2016] [Indexed: 11/15/2022]
Abstract
BACKGROUND Meta-analyses indicated the breakdown of copper homeostasis in the sporadic form of Alzheimer's disease (AD), comprising copper decreases within the brain and copper increases in the blood and the pool not bound to ceruloplasmin (non-Cp Cu, also known in the literature as "free" copper). The calculated non-Cp Cu (Walshe's) index has many limitations. METHODS A direct fluorescent method for non-Cp Cu detection has been developed and data are presented herein. The study included samples from 147 healthy subjects, 36 stable mild cognitive impairment (MCI) and 89 AD patients, who were tested for non-Cp Cu through the direct method, total serum copper, ceruloplasmin concentration and o-dianisidine ceruloplasmin activity. The indirect non-Cp Cu Walshe's index was also calculated. RESULTS The direct method was linear (0.9-5.9 μM), precise (within-laboratory coefficient variation of 9.7% for low and 7.1% for high measurements), and had a good recovery. A reference interval (0-1.9 μM) was determined parametrically in 147 healthy controls (27-84 years old). The variation of non-Cp Cu was evaluated according to age and sex. Non-Cp Cu was 1.5 times higher in AD patients (regarding the upper value of the reference interval) than in healthy controls. Healthy, MCI and AD subjects were differentiated through the direct non-Cp Cu method [areas under the curve (AUC)=0.755]. Considering a 95% specificity and a 1.91 μmol/L cut-off, the sensitivity was 48.3% (confidence interval 95%: 38%-58%). The likelihood ratio (LR) was 9.94 for positive test results (LR+) and 0.54 for negative test result (LR-). CONCLUSIONS The direct fluorescent test reliably and accurately measures non-Cp Cu, thereby determining the probability of having AD.
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Tiwari AKM, Mahdi AA, Mishra S. Study on Impact of Iron and Folic Acid on the Plasma Trace Minerals in Pregnant Anemic Women. Indian J Clin Biochem 2017; 33:31-37. [PMID: 29371767 DOI: 10.1007/s12291-017-0653-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 04/11/2017] [Indexed: 12/11/2022]
Abstract
Iron deficiency anemia is one of the causes that lead to significant mortality and morbidity among pregnant women and fetus. The present study was undertaken to explore oral iron supplementation can modify the metal contents in pregnant anemic women. Iron and folic acid supplementations was given to 500 anemic women (mild = 200, moderate = 200, and severe = 100) and 100 age matched non-anemic controls daily for 100 days. Blood index values and plasma trace minerals were estimated as per standard protocols. Haemoglobin and ferritin levels were found significantly increased (p < 0.001) in anemic and control subjects after treatment. Moreover, the serum transferring receptor levels and total iron binding capacity were found significantly decreased in all treated groups. Iron (Fe), zinc (Zn) and copper (Cu) levels were found increased (p < 0.01) after oral iron supplementation groups. Moreover, selenium (Se) manganese (Mn) and were found to be decreased in all treated groups. Data provides the conclusion that iron and folic acid supplementation recovered the essential trace minerals, except manganese, which may lead to various complications including peroxidation of vital body molecules resulting in increased risk for pregnant women as well as fetus.
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Affiliation(s)
- Amit Kumar Mani Tiwari
- 1Department of Biochemistry, King George's Medical University, Lucknow, 226003 India.,2Department of Biotechnology, School of Engineering and Technology, IFTM University, Moradabad, India
| | - Abbas Ali Mahdi
- 1Department of Biochemistry, King George's Medical University, Lucknow, 226003 India
| | - Sanjay Mishra
- 2Department of Biotechnology, School of Engineering and Technology, IFTM University, Moradabad, India
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Miraloglu M, Kurutas EB, Ozturk P, Arican O. Evaluation of local trace element status and 8-Iso-prostaglandin F2α concentrations in patients with Tinea pedis. Biol Proced Online 2016; 18:1. [PMID: 26740800 PMCID: PMC4702401 DOI: 10.1186/s12575-015-0030-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 12/23/2015] [Indexed: 01/26/2023] Open
Abstract
Background Tinea pedis (TP) is an infection of the feet caused by fungi. The infectious diseases caused by dermatophytes are mainly related to the enzymes produced by these fungi. Up to the now, the local 8-iso-prostaglandin F2α (8-iso-PGF2α), concentration as oxidative stress biomarker and trace elements status have not been published in patients with TP. The aim of this study is to evaluate the relationship between oxidative stress and trace elements (Cu, Zn, Se), and to evaluate the ratios of Cu/Zn and Cu/Se in this disorder. Methods Forty-three consecutive patients with a diagnosis of unilateral interdigital TP were enrolled in this study. The samples were obtained by scraping the skin surface. 8-iso-PGF2α concentrations in scraping samples were determined by ELISA. In addition, the levels of Se, Zn and Cu in scraping samples were determined on flame and furnace atomic absorption spectrophotometer using Zeeman background correction. Results Oxidative stress was confirmed by the significant elevation in 8-iso-PGF2α concentrations (p < 0.05). When compared to non-lesional area, Zn and Se levels were significantly lower on lesional area, whereas Cu levels was higher on the lesional area than the non-lesional area (p < 0.05). In addition, the correlation results of this study were firstly shown that there were significant and positive correlations between Cu and 8-iso-PGF2α parameters, but negative correlations between Se-Cu; Se-8-iso-PGF2α parameters in lesional area. Furthermore, the ratios of Cu/Zn and Cu/Se were significantly higher on the lesional area than the non-lesional area (p < 0.05). According to sex and fungal subtypes, there was no significant difference in the concentrations of 8-iso-PGF2α and trace elements in patients with TP (p > 0.05). Conclusions Our results showed that there is a possible link between oxidative stress (increased 8-iso-PGF2α concentrations) and imbalanced of trace elements status in lesional area of TP patients. The use of antifungal agents together with both Zn and Se drugs could be helpful in the both regression of disease and in shortening the duration of disease.
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Affiliation(s)
- Meral Miraloglu
- Department of Microbiology, Faculty of Medicine, Cukurova University, 01330 Adana, Turkey
| | - Ergul Belge Kurutas
- Department of Biochemistry, Sutcu Imam University, Faculty of Medicine, Kahramanmaras, Turkey
| | - Perihan Ozturk
- Department of Dermatology, Sutcu Imam University, Faculty of Medicine, Kahramanmaras, Turkey
| | - Ozer Arican
- Department of Dermatology, Fatih University, Faculty of Medicine, Istanbul, Turkey
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Bakacak M, Kılınç M, Serin S, Ercan Ö, Köstü B, Avcı F, Kıran H, Kıran G. Changes in Copper, Zinc, and Malondialdehyde Levels and Superoxide Dismutase Activities in Pre-Eclamptic Pregnancies. Med Sci Monit 2015; 21:2414-20. [PMID: 26280939 PMCID: PMC4544335 DOI: 10.12659/msm.895002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Preeclampsia (PE) is a hypertensive disorder that occurs in 2% to 8% of pregnancies. Although numerous studies have investigated the etiology and pathophysiology of preeclampsia, the precise pathological mechanisms remain poorly understood. Hence, in the present study malondialdehyde (MDA) levels and SOD expression, and Cu and Zn concentrations and ratios were correlated with birth weights in pregnant women with and without PE, and in non-pregnant females of reproductive age. MATERIAL AND METHODS Malondialdehyde (MDA) levels and superoxide dismutase (SOD) activities were determined spectrophotometrically, and Cu and Zn levels were determined using atomic absorption spectrometry in serum from 42 non-pregnant women (NP), 40 healthy pregnant women (HP), and 38 pre-eclamptic pregnant (PE) women. Subsequently, Cu/Zn ratios were calculated and associations with birth weights were analyzed using Spearman correlations. RESULTS Cu, Zn, and MDA levels and Cu/Zn ratios were significantly higher in the PE group than in the HP and NP groups, and were significantly higher in the HP than in the NP group (p<0.001 and p<0.001; respectively). In contrast, serum Zn and SOD levels were significantly lower in the PE group than in HP and NP groups, and were significantly lower in the HP group than in the NP group (p<0.001 and p<0.001; respectively). However, only Cu and Zn levels were significantly associated with fetal birth weights (r=-0.433, p<0.001). CONCLUSIONS Serum Cu/Zn ratios may reflect vascular complications of PE, and the ensuing increases in lipid peroxidation may play important pathogenic roles.
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Affiliation(s)
- Murat Bakacak
- Department of Obstetrics and Gynecology, Kahramanmaras Sutcu Imam University, School of Medicine, Kahramanmaraş, Turkey
| | - Metin Kılınç
- Department of Biochemistry, Kahramanmaras Sutcu Imam University, School of Medicine, Kahramanmaraş, Turkey
| | - Salih Serin
- Department of Obstetrics and Gynecology, Kahramanmaras Sutcu Imam University, School of Medicine, Kahramanmaraş, Turkey
| | - Önder Ercan
- Department of Obstetrics and Gynecology, Kahramanmaras Sutcu Imam University, School of Medicine, Kahramanmaraş, Turkey
| | - Bülent Köstü
- Department of Obstetrics and Gynecology, Kahramanmaras Sutcu Imam University, School of Medicine, Kahramanmaraş, Turkey
| | - Fazıl Avcı
- Department of Obstetrics and Gynecology, Kahramanmaras Sutcu Imam University, School of Medicine, Kahramanmaraş, Turkey
| | - Hakan Kıran
- Department of Obstetrics and Gynecology, Kahramanmaras Sutcu Imam University, School of Medicine, Kahramanmaraş, Turkey
| | - Gürkan Kıran
- Department of Obstetrics and Gynecology, Kahramanmaras Sutcu Imam University, School of Medicine, Kahramanmaraş, Turkey
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Liggi M, Mais C, Demurtas M, Sorbello O, Demelia E, Civolani A, Demelia L. Uneven distribution of hepatic copper concentration and diagnostic value of double-sample biopsy in Wilson's disease. Scand J Gastroenterol 2013; 48:1452-8. [PMID: 24164422 DOI: 10.3109/00365521.2013.845904] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS. Determination of hepatic copper (Cu) concentration is important in Wilson's disease (WD) diagnosis. The aim of this study was to evaluate uneven distribution of liver Cu concentration and the utility of double-sample biopsy in WD diagnosis. METHODS. Thirty-five WD patients (20 male; mean age 41 ± 9 years) were enrolled in the study and double-liver samples for biopsy were obtained. A further 30 WD patients, in whom Cu determination was performed using single-liver samples, were also enrolled as controls. RESULTS. A marked difference in hepatic Cu concentration was observed between the two sample groups (p < 0.0001). This difference is statistically significant for all levels of liver fibrosis (p < 0.001) and for the comparison of hepatic and neurological phenotypes (p < 0.01). The sensitivity of the Cu concentrations obtained from the double-sample biopsies for the conventional cut-off value of 250 mg/g dry weight of tissue was 85.7% compared to 80% in the single-sample biopsies. By lowering the cut-off value from 250 to 50 µg/g of dry weight of tissue, the sensitivity of Cu content to diagnose WD increased to 97% for double-sample liver biopsy compared to 93% for single-sample liver biopsy. CONCLUSIONS. Liver Cu content was unevenly distributed in the WD subjects, irrespective of fibrosis levels and disease phenotypes; hence WD can be misdiagnosed using single-sample liver Cu measurement. Double-sample biopsy sensitivity is greater than that obtained with single-sample biopsy and should therefore be considered to evaluate liver Cu concentration at initial diagnosis in all patients.
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Affiliation(s)
- Mauro Liggi
- UOC of Gastroenterology, Azienda Ospedaliero - Universitaria , Cagliari , Italy
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Ozturk P, Belge Kurutas E, Ataseven A. Copper/zinc and copper/selenium ratios, and oxidative stress as biochemical markers in recurrent aphthous stomatitis. J Trace Elem Med Biol 2013; 27:312-6. [PMID: 23664921 DOI: 10.1016/j.jtemb.2013.04.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 01/23/2013] [Accepted: 04/03/2013] [Indexed: 11/20/2022]
Abstract
PROJECT Recurrent aphthous stomatitis (RAS) is a common oral mucosal disorder characterized by recurrent, painful oral aphthae, and oxidative stress presumably contributes to its pathogenesis. The aim of this study is to scrutinize the relationship between oxidative stress and serum trace elements (copper, Cu; zinc, Zn; selenium, Se), and to evaluate the ratios of Cu/Zn and Cu/Se in this disorder. PROCEDURE Patients with RAS (n = 33) and age- and sex-matched healthy control subjects (n = 30) were enrolled in this study. Malondialdehyde (MDA) concentrations in plasma and the activities of superoxide dismutase (SOD1; CuZnSOD), glutathione peroxidase (GPx) and catalase (CAT) in erythrocyte were determined as spectrophotometric. Also, the levels of Se, Zn and Cu in serum were determined on flame and furnace atomic absorption spectrophotometer using Zeeman background correction. RESULTS AND CONCLUSIONS Oxidative stress was confirmed by the significant elevation in plasma MDA, and by the significant decrease in CAT, SOD1, and GPx (p < 0.05). When compared to controls, Zn and Se levels were significantly lower in patients, whereas Cu levels was higher in RAS patients than those in controls (p < 0.05). In addition, the correlation results of this study were firstly shown that there were significant and positive correlations between Se-CAT, Se-GPx, and Cu-MDA parameters, but negative correlations between Se-Cu, Se-MDA, Cu-CAT, Cu-SOD1 and Cu-GPx parameters in RAS patients. Furthermore, the ratios of Cu/Zn and Cu/Se were significantly higher in the patients than the control subjects (p < 0.05). Our results indicated that lipid peroxidation associated with the imbalance of the trace elements seems to play a crucial role in the pathogenesis of RAS. Furthermore, the serum Cu/Zn and Cu/Se ratios may be used as biochemical markers in these patients.
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Affiliation(s)
- Perihan Ozturk
- Sutcu Imam University, Medicine of Faculty, Department of Dermatology, Kahramanmaras, Turkey.
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10
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Bruha R, Vitek L, Marecek Z, Pospisilova L, Nevsimalova S, Martasek P, Petrtyl J, Urbanek P, Jiraskova A, Malikova I, Haluzik M, Ferenci P. Decreased serum antioxidant capacity in patients with Wilson disease is associated with neurological symptoms. J Inherit Metab Dis 2012; 35:541-8. [PMID: 22139496 DOI: 10.1007/s10545-011-9422-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 11/03/2011] [Accepted: 11/08/2011] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIMS Wilson disease (WD) is an inherited disorder of copper disposition caused by an ATP7B transporter gene mutation, leading to copper accumulation in predisposed tissues. In addition to a genetic predisposition, other factors are likely to contribute to its clinical manifestation. The aim of the study was to assess whether oxidative stress affects the phenotypic manifestation of WD. METHODS In 56 patients with WD (29 men; 26 with the hepatic form, 22 with the neurologic form, and eight asymptomatic; mean age 38.5 ± 12 years), total serum antioxidant capacity (TAC) and inflammatory parameters (hs-CRP, IL-1β, IL-2, IL-6, IL-10, and TNF-α) were analyzed and related to the clinical manifestation, and mutations of the ATP7B gene. The control group for the TAC and inflammatory parameters consisted of 50 age- and gender-matched healthy individuals. RESULTS WD patients had a significantly lower TAC (p < 0.00001), lower IL-10 levels (p = 0.039), as well as both higher IL-1β (p = 0.019) and IL-6 (p = 0.005) levels compared to the control subjects. TNF-α, hs-CRP, and IL-2 did not differ from the controls. Patients with the neurological form of WD had a significantly lower TAC than those with the hepatic form (p < 0.001). In addition, the lower TAC was associated with the severity of the neurological symptoms (p = 0.02). No relationship between the inflammatory parameters and clinical symptoms was found. CONCLUSIONS Data from our study suggest that the increased oxidative stress contributes significantly to the clinical manifestation of WD; as a lower TAC is associated with the neurological symptoms in WD patients.
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Affiliation(s)
- Radan Bruha
- First Faculty of Medicine, 4th Department of Internal Medicine, Charles University in Prague, Prague, Czech Republic.
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Arikan DC, Coskun A, Ozer A, Kilinc M, Atalay F, Arikan T. Plasma selenium, zinc, copper and lipid levels in postmenopausal Turkish women and their relation with osteoporosis. Biol Trace Elem Res 2011; 144:407-17. [PMID: 21656042 DOI: 10.1007/s12011-011-9109-7] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Accepted: 06/01/2011] [Indexed: 10/18/2022]
Abstract
It has been shown that the trace elements and lipids play role in the growth, development and maintenance of bones. We aimed to investigate serum selenium (Se), zinc (Zn), copper (Cu) and lipid (total cholesterol, triglyceride (TG), high density lipoprotein-cholesterol, low-density lipoprotein-cholesterol) levels in postmenopausal women with osteoporosis, osteopenia and in healthy controls, and to determine the relationship between Se, Zn, Cu and lipid parameters and bone mineral density (BMD). The study included 107 postmenopausal women; 35 healthy (group 1), 37 osteopenic (group 2) and 35 osteoporotic (group 3). The women in all three groups were carefully matched for body mass index (BMI). Serum concentrations of Se, Zn and Cu were measured by atomic absorption spectrophotometry. Plasma Se, Cu, Zn and lipid levels were similar in all groups (p > 0.05). When we combined the women in each of the three groups, and considered them as one group (n = 107) we found a positive correlation between BMI and lumbar vertebra BMD, femur neck BMD, femur total BMD; a positive correlation between TG and femur neck BMD, femur total BMD; a positive correlation between Zn and lumbar vertebra BMD (total T score) (p < 0.05). There was no correlation between Se, Cu, Zn, P and lipid parameters (p > 0.05). Although BMI has a positive effect on BMD, trace elements and lipids, except Zn and TG, did not directly and correlatively influence BMD. Further studies are needed to clarify the role and relationship of trace elements and lipid parameters in postmenopausal osteoporosis.
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Affiliation(s)
- Deniz Cemgil Arikan
- Department of Obstetrics and Gynecology, Kahramanmaras Sutcu Imam University Medical Faculty, Kahramanmaras, Turkey.
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Bruha R, Marecek Z, Pospisilova L, Nevsimalova S, Vitek L, Martasek P, Nevoral J, Petrtyl J, Urbanek P, Jiraskova A, Ferenci P. Long-term follow-up of Wilson disease: natural history, treatment, mutations analysis and phenotypic correlation. Liver Int 2011; 31:83-91. [PMID: 20958917 DOI: 10.1111/j.1478-3231.2010.02354.x] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Wilson disease (WD) is an inherited disorder of copper metabolism. When treated, the outcome can be excellent, although the long-term survival has yet to be well documented. The aim of this study was to describe the long-term outcome of a cohort of patients with WD and to assess those factors affecting the phenotypic manifestation of WD. METHODS The presence of mutations to the ATP7B gene, the clinical manifestations, treatments and the long-term outcomes were analysed retrospectively in 117 patients with WD (59 men and 58 women, aged at evaluation 38.5 ± 11, range 16-63 years). RESULTS Fifty-five patients with a neurological presentation, 51 patients with a hepatic presentation and 11 asymptomatic patients were followed up for an average of 15.1 ± 10 years (median 12 years, range 1-41 years). The H1069Q ATP7B gene mutation was the most frequent genetic variant (54.3%); the frequency of this mutation did not differ between patients with either the hepatic or the neurological presentation (P = 0.099). d-penicillamine or zinc salts (81 and 17% respectively) were used for treatment, and three patients underwent liver transplantation. The majority of symptomatic patients became asymptomatic, or improved, during the follow-up (82% patients with hepatic presentation, 69% with neurological presentation). The long-term survival of patients with WD did not differ from that of the general Czech population (P = 0.95). CONCLUSIONS Long-term follow-up shows a satisfactory response in the great majority of adequately treated patients with WD and survival coincides with that of the general population.
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Affiliation(s)
- Radan Bruha
- 4th Department of Internal Medicine, 1st Faculty of Medicine, Charles University in Prague, General Teaching Hospital, Prague, Czech Republic.
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Kilinc M, Coskun A, Bilge F, Imrek SS, Atli Y. Serum reference levels of selenium, zinc and copper in healthy pregnant women at a prenatal screening program in southeastern Mediterranean region of Turkey. J Trace Elem Med Biol 2010; 24:152-6. [PMID: 20569925 DOI: 10.1016/j.jtemb.2010.01.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2009] [Revised: 01/05/2010] [Accepted: 01/05/2010] [Indexed: 11/21/2022]
Abstract
PROJECT The aim of the study was to investigate the serum reference range for Selenium (Se), Zinc (Zn) and Copper (Cu) levels in women of 10-14 (group I) and 16-20 (group II) weeks of gestation and compare them with those in non-pregnant healthy women and healthy men. PROCEDURE This cross-sectional study was performed in 351 pregnant women [group I (n: 177) and group II (n: 174)], 30 non-pregnant women and 30 men as controls. The levels of Se, Zn and Cu levels were determined on flame and furnace atomic absorption spectrophotometer using Zeeman background correction. RESULTS In the 10-14 weeks of gestation Se, Zn and Cu serum levels were 44.85+/-9.23, 81.30+/-31.94 and 132.33+/-38.24 microg/dl, in 16-20 weeks of gestation were 47.18+/-10.92, 74.25+/-22.47 and 164.86+/-39.69 microg/dl, in non-pregnant women were 55.38+/-8.81, 121.41+/-29.22 and 104.75+/-39.14 microg/dl also in men 72.24+/-9.28, 134.85+/-15.95 and 78.29+/-20.90 microg/dl, respectively. CONCLUSION A significant low level of serum Se, Zn and a high level of Cu in the pregnant women in the 10-14 and 16-20 weeks of gestation were detected when compared with that of non-pregnant women and men.
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Affiliation(s)
- Metin Kilinc
- Kahramanmaras Sutcu Imam University, Faculty of Medicine, Department of Biochemistry Research Laboratory, Kahramanmaras, Turkey.
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Turker G, Ergen K, Karakoç Y, Arisoy AE, Barutcu UB. Concentrations of Toxic Metals and Trace Elements in the Meconium of Newborns from an Industrial City. Neonatology 2006; 89:244-50. [PMID: 16319451 DOI: 10.1159/000089953] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2005] [Accepted: 08/30/2005] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To investigate fetal exposure to toxic metals [lead (Pb), cadmium (Cd)] and fetal levels of trace elements [zinc (Zn), copper (Cu), and iron (Fe)] in newborns from an industrial city. Relationships between meconium mineral contents and parental occupation and location of residence were also tested. METHOD The meconium mineral contents of 117 healthy newborn infants were measured by flame atomic absorption spectrophotometer. RESULTS The median concentrations (interquartile range) of toxic metals and trace elements in the meconium were as follows: Pb: 46.5 (1,399) microg/g dry weight (wt), Cd: 2.3 (55.6) microg/g dry wt; Zn: 234 (3,049) microg/g dry wt; Cu: 11.8 (818.7) microg/g dry wt, and Fe 105 (2,980) microg/g dry wt. All the meconium samples contained both toxic metals and trace elements. The proportions of trace elements in the meconium samples with concentration higher than 100 microg/g dry wt of the substances tested were Zn 90%, Cu 64%, and Fe 53%. There were significantly positive correlations between the concentrations of toxic metals and trace elements. Also there were positive correlations between the levels of Zn, Fe, and parental occupations, and between the level of Fe and location of residence of the parents (proximity to the petroleum refinery or the dye industries). CONCLUSION All the meconium samples were positive for toxic metals, and thus may reflect environmental pollution in the city. The occupation environments and the location of the family residence are linked with levels of trace elements in meconium.
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Affiliation(s)
- Gulcan Turker
- Department of Pediatrics, Neonatology Division, Kocaeli University Faculty of Medicine, Kocaeli, Turkey.
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Abstract
A wide range of minerals occurs in feedstuffs as naturally occurring and purposely added elements, as well as by adventitious contamination. These mineral elements can generally be classified as nutritionally essential major elements, nutritionally essential minor and trace elements, and those regarded as toxic or with an essential/toxic duality. A survey is presented of methods used for the determination of major, minor, and trace elements in feedstuffs and related biological materials. Currently available methods include the following: atomic absorption spectrometry, atomic emission spectrometry, mass spectrometry, neutron activation analysis, x-ray emission spectrometry, molecular light absorption spectrometry, molecular fluorometry, electrochemistry, Kjeldahl method (nitrogen), combustion elemental analysis, volumetry, ion chromatography, and gravimetry. Available reference, routine, official, unofficial, and recommended methods are reviewed as a basis for recommendations of methods most suitable for feedstuffs.
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Affiliation(s)
- M Ihnat
- Pacific Agri-Food Research Centre-Summerland, Agriculture and Agri-Food Canada, Summerland, BC V0H 1Z0 Canada.
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Staub NC, Longworth KE, Serikov V, Jerome EH, Elsasser T. Detergent inhibits 70-90% of responses to intravenous endotoxin in awake sheep. J Appl Physiol (1985) 2001; 90:1788-97. [PMID: 11299269 DOI: 10.1152/jappl.2001.90.5.1788] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Sheep have reactive pulmonary intravascular macrophages, which are essential for the marked pulmonary vascular response to infusions of small quantities of endotoxin. In another species with reactive pulmonary intravascular macrophages, horses, our laboratory found that an intravenous biosafe detergent, tyloxapol, inhibited some systemic and pulmonary responses to endotoxin (Longworth KE, Smith BL, Staub NC, Steffey EP, and Serikov V. Am J Vet Res 57: 1063-1066, 1996). We determined whether the same detergent would inhibit endotoxin responses in awake sheep. In 10 awake, instrumented sheep with chronic lung lymph fistulas, we did a control experiment by intravenously infusing 1 microg/kg Escherichia coli endotoxin. One week later, we gave 40 micromol/kg tyloxapol intravenously 1-4 h before infusing the same dose of endotoxin. In these paired studies, we compared pulmonary hemodynamics, lung lymph dynamics, body temperature, circulating leukocyte concentrations, and circulating tumor necrosis factor for 6 h. In all 10 sheep, tyloxapol blocked 80-90% of the pulmonary responses and 70-90% of the systemic responses. Tyloxapol is safe, inexpensive, easy to use, and effective immediately. It may be a clinically useful approach to contravening many of the effects of endotoxemia, in humans as well as animals.
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Affiliation(s)
- N C Staub
- Cardiovascular Research Institute, University of California, San Francisco 94143, USA
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Song YM, Chen MD. A single determination of liver copper concentration may misdiagnose Wilson's disease. Clin Biochem 2000; 33:589-90. [PMID: 11124346 DOI: 10.1016/s0009-9120(00)00164-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Y M Song
- Division of Clinical Biochemistry, Department of Medical Laboratories, Taichung Veterans General Hospital, Taichung, Taiwan, Republic of China
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Michel R, Massanz C, Kostka S, Richter M, Fiebig K. Biochemical characterization of the 8-hydroxy-5-deazaflavin-reactive hydrogenase from Methanosarcina barkeri Fusaro. EUROPEAN JOURNAL OF BIOCHEMISTRY 1995; 233:727-35. [PMID: 8521835 DOI: 10.1111/j.1432-1033.1995.727_3.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The membrane-associated coenzyme F420-reactive hydrogenase of the anaerobic methanogenic archaeon Methanosarcina barkeri Fusaro has been purified 95-fold to apparent homogeneity. A new purification procedure and altered storage conditions gave substantially higher yield (13.4% versus 4.3%) and specific coenzyme F420-reducing activity (82.8 mumol.min-1.mg protein-1 versus 11.5 mumol.min-1.mg protein-1) than reported previously [Fiebig, K. & Friedrich, B. (1989) Eur. J. Biochem. 184, 79-88]. The predominant coenzyme F420-reactive form of the hydrogenase has an apparent molecular mass of 198 kDa and is composed of three non-identical subunits with apparent molecular masses of 48 (alpha), 33 (beta), and 30 kDa (gamma), apparently in a stoichiometry of alpha 2 beta 2 gamma 1. This minimal coenzyme F420-reducing hydrogenase formed aggregates with apparent molecular masses of approximately 845 kDa. 1 mol of the 198-kDa form of hydrogenase contained 2 mol FAD, 2 mol nickel, 28-32 mol non-heme iron, and 34 mol acid-labile sulfur; in addition, 0.2 mol selenium was detected. The isoelectric point was 5.30. The amino acid sequence PXXRXEGH, where X is any amino acid, was found to be conserved in the N-termini of the putative nickel-binding subunits of most [NiFe]- and [NiFeSe]hydrogenases of methanogenic Archaea and Bacteria. However, this motif was not detected in the protein sequences of [Fe]hydrogenases. Maximal coenzyme F420-reducing activity was obtained with reductively reactivated enzyme at 55 degrees C in the pH range 6.5-7.25. The Km values of the purified enzyme for H2 with coenzyme F420 or methylviologen as electron acceptor were extremely low, namely 3 microM and 4 microM. The catalytic efficiency coefficients (kcat/Km) for H2 with both reducible cosubstrates were high: 2.5 x 10(7) M-1.s-1 with coenzyme F420 and 6.9 x 10(7) M-1.s-1 with methylviologen.
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Affiliation(s)
- R Michel
- Institut für Pflanzenphysiologie und Mikrobiologie, Freien Universität Berlin, Germany
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