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Xu B, Zhang L, Wu D, Qi Z, Cao J, Li W, Fan L, Shi Y, Wu Y, Li G. CuO nanoparticles elicit intestinal immunotoxicity in zebrafish based on intestinal microbiota dysbiosis. Food Funct 2024. [PMID: 38940701 DOI: 10.1039/d4fo01032a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Copper II oxide nanoparticles (CuO NPs), a kind of widely used nanomaterial, have been detected in food and the environment, which has aroused widespread public concern. Recently, increasing data have suggested that intestinal microecology is closely related to immune homeostasis. However, the intestinal immunotoxicity induced by CuO NPs through intestinal microbiota is still unknown. Therefore, in this study, zebrafish were exposed to CuO NPs to explore intestinal immunotoxicity by evaluating physiological indicators, intestinal tissue injury, antioxidant enzyme activities, gene expression of immune factors, and changes in intestinal microbiota and its metabolites (short-chain fatty acids (SCFAs) and lipopolysaccharides (LPS)). The results revealed that the intestinal immunotoxicity of CuO NPs was mediated by the impact on intestinal microbiota and its metabolite levels. Specifically, changes were observed in the abundance of microbes that participated in the metabolism of SCFAs and LPS. The reduction in acetic acid, propionic acid and valeric acid upregulated GPR84 expression, and the decline in LPS levels further resulted in the suppression of the key immune regulatory pathways TLR4/MyD88/NF-κB, ultimately leading to intestinal immunotoxicity. This study would provide a scientific basis for the risk assessment of CuO NPs and a new perspective for research on the immunotoxicity of nanoparticles.
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Affiliation(s)
- Bufan Xu
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Luyao Zhang
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Di Wu
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, UK
| | - Zihe Qi
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Juanjuan Cao
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Wenrui Li
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Lihua Fan
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Yiheng Shi
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Yongning Wu
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
- NHC Key Laboratory of Food Safety Risk Assessment, Food Safety Research Unit (2019RU014) of Chinese Academy of Medical Science, China National Center for Food Safety Risk Assessment, Beijing 100021, China
| | - Guoliang Li
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
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Kashyap N, Das CR, Datta R, Begum A, Islam M, Bose S, Bose PD. Unravelling the oxygen factor - An investigation of transcriptional activation of hypoxia associated placental angiogenesis in recurrent pregnancy loss (RPL) patients from Assam, India. Placenta 2024; 154:66-73. [PMID: 38905849 DOI: 10.1016/j.placenta.2024.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 05/22/2024] [Accepted: 06/04/2024] [Indexed: 06/23/2024]
Abstract
INTRODUCTION Recurrent pregnancy loss (RPL) is defined as the spontaneous loss of two or more consecutive pregnancies before 20 weeks of gestation, and affects 7.46 % of the Indian population. About 40-50 % of RPL cases are idiopathic making it a therapeutic challenge for clinicians. This study focuses on elucidating the role of hypoxia-associated placental angiogenesis in these idiopathic RPL cases. METHODS Whole blood and product of conception (POCs) were collected from RPL patients (N = 87) and cases of voluntary abortions (medically terminated pregnancy, MTP; n = 110) as controls with informed consent. Serum separated from whole blood was used to study the ROS-antioxidant status in the cases and controls through colorimetric assays and ELISA. The mRNA extracted from placental tissue samples were used to determine the hypoxic and angiogenic status in cases and controls through real time PCR. Statistical analysis was also carried out to correlate the differential hypoxic status between RPL and MTP cohorts with the expression of angiogenic factors (VEGFA, VEGFR1 and VEGFR2). RESULTS HIF1α mRNA expression was found to be upregulated in the RPL cases. While the serum levels of H2O2 (p = 0.012), guanine oxides and lipid hydroperoxides (LPO) were increased in the RPL cases, reduced glutathione (GSH) was found to be significantly decreased (p = 0.012). Additionally, AUROC analysis also shows an excellent discriminatory ability of 0.850 for serum H2O2 levels. VEGF-A and VEGF-R1 mRNA expression was also found to be downregulated in the RPL cases compared to MTP. DISCUSSION This study indicates that increased oxidative stress may lead to aberrations in the VEGF pathway resulting in improper placentation in RPL cases, and subsequently, pregnancy loss.
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Affiliation(s)
- N Kashyap
- Department of Molecular Biology and Biotechnology, Cotton University, Guwahati, 781001, Assam, India
| | - C R Das
- Department of Obstetrics and Gynecology, Gauhati Medical College and Hospital, Guwahati, 781005, Assam, India
| | - R Datta
- Department of Obstetrics and Gynecology, Down Town Hospital, Guwahati, 781026, Assam, India
| | - A Begum
- Department of Biotechnology, Gauhati University, Guwahati, 781014, Assam, India
| | - M Islam
- Department of Biotechnology, Gauhati University, Guwahati, 781014, Assam, India
| | - S Bose
- Department of Biotechnology, Gauhati University, Guwahati, 781014, Assam, India
| | - P D Bose
- Department of Molecular Biology and Biotechnology, Cotton University, Guwahati, 781001, Assam, India.
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Sazakli E. Human Health Effects of Oral Exposure to Chromium: A Systematic Review of the Epidemiological Evidence. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2024; 21:406. [PMID: 38673319 PMCID: PMC11050383 DOI: 10.3390/ijerph21040406] [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: 12/05/2023] [Revised: 03/10/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024]
Abstract
The toxicity and carcinogenicity of hexavalent chromium via the inhalation route is well established. However, a scientific debate has arisen about the potential effects of oral exposure to chromium on human health. Epidemiological studies evaluating the connection between ingested chromium and adverse health effects on the general population are limited. In recent years, a wealth of biomonitoring studies has emerged evaluating the associations between chromium levels in body fluids and tissues and health outcomes. This systematic review brings together epidemiological and biomonitoring evidence published over the past decade on the health effects of the general population related to oral exposure to chromium. In total, 65 studies were reviewed. There appears to be an inverse association between prenatal chromium exposure and normal fetal development. In adults, parameters of oxidative stress and biochemical alterations increase in response to chromium exposure, while effects on normal renal function are conflicting. Risks of urothelial carcinomas cannot be overlooked. However, findings regarding internal chromium concentrations and abnormalities in various tissues and systems are, in most cases, controversial. Environmental monitoring together with large cohort studies and biomonitoring with multiple biomarkers could fill the scientific gap.
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Affiliation(s)
- Eleni Sazakli
- Lab of Public Health, Medical School, University of Patras, GR 26504 Patras, Greece
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Kotepui KU, Mueangson O, Mala W, Mahittikorn A, Wangdi K, Kotepui M. Status of Blood Levels of Superoxide Dismutase in Patients with Malaria: A Systematic Review and Meta-Analysis. Antioxid Redox Signal 2024; 40:222-235. [PMID: 37125449 DOI: 10.1089/ars.2023.0273] [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] [Indexed: 05/02/2023]
Abstract
Aims: The evidence of superoxide dismutase (SOD) in the pathogenesis of malaria is inconsistent. This study aimed to synthesize the evidence of blood levels of SOD in patients with malaria and determine the association of blood levels of SOD with the severity of malaria. Results: A total of 1874 articles were retrieved from database searches and 28 studies were included in the review. The blood levels of SOD were lower in individuals with malaria compared with those without malaria infection (p < 0.01, Cohen's d: -2.06, 95% CI: -2.99 to -1.14), I2: 98.96%, 2181 malaria cases/1186 uninfected cases). There were no differences in blood levels of SOD between severe and nonsevere malaria patients (p = 0.09, Cohen's d: -1.57, 95% CI: -3.39 to 0.26), I2: 96.02%, 69 severe malaria cases/256 nonsevere malaria cases). Innovation and Conclusion: The blood levels of SOD were lower in malaria patients compared with those without malaria infection. Further studies will be required to determine the extent to which SOD might prevent Plasmodium infections during pregnancy. Antioxid. Redox Signal. 40, 222-235.
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Affiliation(s)
| | - Onchuma Mueangson
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Wanida Mala
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Aongart Mahittikorn
- Department of Protozoology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Kinley Wangdi
- Department of Global Health, National Centre for Epidemiology and Population Health, College of Health and Medicine, Australian National University, Canberra, Australia
| | - Manas Kotepui
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
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Kashyap N, Islam M, Kaur H, Tiwari D, Begum A, Bose M, Das CR, Saikia AK, Kalita P, Bose PD, Bose S. Oxidative stress-A key determinant of complications and negative outcome in hepatitis E virus infected pregnancies: A comprehensive account involving cases from northeast India. J Med Virol 2023; 95:e28576. [PMID: 36779361 DOI: 10.1002/jmv.28576] [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: 10/24/2022] [Revised: 01/14/2023] [Accepted: 02/09/2023] [Indexed: 02/14/2023]
Abstract
Regulated oxidative stress (OS) is important during pregnancy. Sporadic studies suggest the significance of deregulated OS in hepatitis E virus (HEV) infected pregnancy, but with limited reactive oxygen species (ROS) or antioxidant markers. The present novel study, therefore, aimed to evaluate the significance of ROS-antioxidant imbalance and resulting altered OS in HEV infected pregnancy complications like preterm delivery (PTD) and outcome. Difference in serum levels of ROS and antioxidant panel of markers were evaluated by ELISA for HEV immunoglobulin M RNA positive genotype 1 cases (including acute [acute viral hepatitis, AVH] and fulminant [fulminant hepatic failure, FHF] cases) and healthy term delivery subjects, and analyzed statistically. Direct ROS marker H2 O2 levels and indirect OS marker for DNA damage 8-hydroxy-2'-deoxyguanosine was significantly increased in HEV-cases compared to controls, and was associated and prognostic factor for PTD and fetal death in HEV cases. A comparatively lower total serum antioxidant capacity was observed in the FHF cases compared to the control subjects and the AVH cases. Glutathione (GSH) levels and superoxide dismutase (SOD) activity were significantly associated with PTD in the FHF sub-cohorts (p = 0.017) and AVH sub-cohorts (p < 0.001), respectively, and was associated with poor prognosis in HEV cases. The serum H2 O2 levels were found to be negatively correlated with SOD activity (p = 0.016) and GSH levels (p = 0.001) in the HEV-AVH cases; and positively correlated with the viral load in HEV cases (p = 0.023). The ROS-antioxidant imbalance resulting OS plays a detrimental associative role in HEV infected pregnancy complications like PTD and adverse pregnancy outcomes; and holds therapeutic significance.
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Affiliation(s)
- Natasha Kashyap
- Department of Molecular Biology and Biotechnology, Cotton University, Guwahati, Assam, India.,Department of Biotechnology, Gauhati University, Guwahati, Assam, India
| | - Mafidul Islam
- Department of Biotechnology, Gauhati University, Guwahati, Assam, India
| | - Harpreet Kaur
- Division of Epidemiology and Communicable Diseases (ECD), Indian Council of Medical Research Headquarters, New Delhi, India
| | - Diptika Tiwari
- Department of Biotechnology, Gauhati University, Guwahati, Assam, India
| | - Anjuma Begum
- Department of Biotechnology, Gauhati University, Guwahati, Assam, India
| | - Moumita Bose
- Department of Biotechnology, Gauhati University, Guwahati, Assam, India
| | - Chandana Ray Das
- Department of Obstetrics and Gynaecology, Gauhati Medical College & Hospital (GMCH), Guwahati, Assam, India
| | - Anjan Kumar Saikia
- Department of Gastroenterology & Hepatology, Guwahati Neurological Research Center (GNRC) Hospitals, Guwahati, Assam, India
| | - Pankaj Kalita
- Department of Ayurveda, SMO (Ayurveda), ESIC Model Hospital, Guwahati, Assam, India
| | - Purabi Deka Bose
- Department of Molecular Biology and Biotechnology, Cotton University, Guwahati, Assam, India
| | - Sujoy Bose
- Department of Biotechnology, Gauhati University, Guwahati, Assam, India
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Levin-Schwartz Y, Cowell W, Leon Hsu HH, Enlow MB, Amarasiriwardena C, Andra SS, Wright RJ, Wright RO. Metal mixtures are associated with increased anxiety during pregnancy. ENVIRONMENTAL RESEARCH 2022; 204:112276. [PMID: 34717944 PMCID: PMC8671328 DOI: 10.1016/j.envres.2021.112276] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 09/29/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Exposure to low-dose toxic metals in the environment is ubiquitous. Several murine studies have shown metals induce anxiety-like behaviors, and mechanistic research supports that metals disrupt neurotransmitter signaling systems implicated in the pathophysiology of anxiety. In this study, we extend prior research by examining joint exposure to six metals in relation to maternal anxiety symptoms during pregnancy. METHODS The sample includes 380 participants enrolled in the PRogramming of Intergenerational Stress Mechanisms (PRISM) pregnancy cohort. Spot urine was collected during pregnancy (mean ± standard deviation: 31.1 ± 6.1 weeks), and concentrations of six metals (barium [Ba], cadmium [Cd], chromium [Cr], cesium [Cs], lead [Pb], antimony [Sb]) were measured by Inductively Coupled Plasma - Mass Spectrometry. Trait anxiety symptoms were measured during pregnancy using a short version of the Spielberger State Trait Anxiety Inventory (STAI-T) and information on covariates was collected by questionnaire. We used weighted quantile sum (WQS) regression as the primary modeling approach to examine metals, treated as a mixture, in relation to higher (≥20) vs. lower anxiety symptoms while adjusting for urinary creatinine and key sociodemographic variables. RESULTS The sample is socioeconomically and racially/ethnically diverse. Urinary metal concentrations were log-normally distributed and 25% of the sample had an STAI-T score ≥20. Joint exposure to metals was associated with elevated anxiety symptoms (ORWQS = 1.56, 95% CI: 1.24, 1.96); Cd (61.8%), Cr (14.7%), and Cs (12.7%) contributed the greatest weight to the mixture effect. CONCLUSION Exposure to metals in the environment may be associated with anxiety symptoms during pregnancy. This is a public health concern, as anxiety disorders are highly prevalent and associated with significant co-morbidities, especially during pregnancy when both the mother and developing fetus are susceptible to adverse health outcomes.
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Affiliation(s)
- Yuri Levin-Schwartz
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Whitney Cowell
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Hsiao-Hsien Leon Hsu
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Michelle Bosquet Enlow
- Department of Psychiatry, Boston Children's Hospital, Boston, MA, USA; Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Chitra Amarasiriwardena
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Syam S Andra
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Rosalind J Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Institute for Exposomic Research, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Kravis Children's Hospital, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Robert O Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Institute for Exposomic Research, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Balan P, Chong YS, Lin Q, Lim TK, Li H, Wong ML, Lopez V, He HG, Seneviratne CJ. Isobaric tags for relative and absolute quantification (iTRAQ)-based quantitative analysis of the salivary proteome during healthy pregnancy and pregnancy gingivitis. J Clin Periodontol 2021; 48:1559-1569. [PMID: 34605060 DOI: 10.1111/jcpe.13559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 09/25/2021] [Indexed: 02/06/2023]
Abstract
AIM The present study aimed to investigate the salivary proteome profiles of pregnant women with gingivitis (PG) or without gingivitis (HP) and non-pregnant healthy controls (HC) by employing iTRAQ-based proteomics. MATERIALS AND METHODS Saliva samples were collected from 30 Chinese women comprising 10 subjects in each of the three groups (PG, HP, and HC). The samples were subjected to iTRAQ-based proteomics analysis, and ELISA was performed to validate the results. The subsequent observations were validated in a cohort of 48 subjects. RESULTS Pathways associated with neutrophil-mediated immune response and antioxidant defence mechanism were significantly higher in PG than HC. The abundance of salivary cystatins (S, SA, and SN) and antimicrobials were significantly decreased in PG and HP, while cystatin C and D were additionally decreased in PG. Cystatin C was mapped to all the major catabolic pathways and was the most re-wired protein in pregnancy gingivitis. Further validation demonstrated cystatin C to be significantly lower in PG than HC. CONCLUSIONS While the decrease in levels of salivary cystatins and antimicrobial proteins may predispose healthy pregnant women to pregnancy gingivitis, it may cause persistence of inflammation in pregnant women with gingivitis.
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Affiliation(s)
- Preethi Balan
- Singapore Oral Microbiomics Initiative, National Dental Research Institute Singapore, National Dental Center, Singapore.,Oral Health Academic Clinical Program, Duke NUS Medical School, Singapore
| | - Yap S Chong
- Department of Obstetrics & Gynaecology, Yong Loo Lin School of Medicine, National University Hospital, Singapore
| | - Qingsong Lin
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore
| | - Teck Kwang Lim
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore
| | - Huihua Li
- Oral Health Academic Clinical Program, Duke NUS Medical School, Singapore
| | - Mun L Wong
- Discipline of Primary Dental Care and Population Oral Health, Faculty of Dentistry, National University of Singapore, Singapore
| | - Violeta Lopez
- School of Nursing, Hubei University of Medicine, Shiyan City, Hubei Province, China
| | - Hong Gu He
- Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Chaminda Jayampath Seneviratne
- Singapore Oral Microbiomics Initiative, National Dental Research Institute Singapore, National Dental Center, Singapore.,Oral Health Academic Clinical Program, Duke NUS Medical School, Singapore
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Bizoń A, Milnerowicz H, Kowalska-Piastun K, Milnerowicz-Nabzdyk E. The Impact of Early Pregnancy and Exposure to Tobacco Smoke on Blood Antioxidant Status and Copper, Zinc, Cadmium Concentration-A Pilot Study. Antioxidants (Basel) 2021; 10:antiox10030493. [PMID: 33809854 PMCID: PMC8004252 DOI: 10.3390/antiox10030493] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/16/2021] [Accepted: 03/18/2021] [Indexed: 12/18/2022] Open
Abstract
The aim of the study was to evaluate the impact of early pregnancy and exposure to tobacco smoke on antioxidant status and copper, zinc, and cadmium concentrations in the blood of non-smoking and smoking, as well as non-pregnant or pregnant women. The study included 213 women. More specifically, 150 women in first trimester of pregnancy and 63 non-pregnant women. Women were divided into subgroups according to exposure to tobacco smoke. Pregnancy significant influences higher copper and lower zinc concentration in the serum, whereas exposure to tobacco smoke during pregnancy is mainly associated with an elevation in cadmium and zinc concentration. It seems that metallothionein, superoxide dismutase, and glutathione peroxidase are the important antioxidants during early pregnancy, when exposure to tobacco smoke occurs, whereas the pregnancy itself is associated with a higher concentration of metallothionein and activity of catalase. Both pregnancy in the first trimester and exposure to tobacco smoke decrease glutathione concentration. In addition, active and passive maternal smoking have a similarly negative effect on antioxidant status in the first trimester. Early pregnancy as well as exposure to tobacco smoke is associated with significant alteration in antioxidant status and copper, zinc, and cadmium concentration. Due to a small number of smoking subjects (11 cases of non-pregnant, active smokers and 14 pregnant active smokers), the obtained results should be treated as a pilot, and this should be considered for future studies.
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Affiliation(s)
- Anna Bizoń
- Department of Biomedical and Environmental Analysis, Wroclaw Medical University, 50-556 Wroclaw, Poland; (H.M.); (K.K.-P.)
- Correspondence: ; Tel.: +48-71-784-0175; Fax: +48-71-784-0172
| | - Halina Milnerowicz
- Department of Biomedical and Environmental Analysis, Wroclaw Medical University, 50-556 Wroclaw, Poland; (H.M.); (K.K.-P.)
| | - Katarzyna Kowalska-Piastun
- Department of Biomedical and Environmental Analysis, Wroclaw Medical University, 50-556 Wroclaw, Poland; (H.M.); (K.K.-P.)
| | - Ewa Milnerowicz-Nabzdyk
- 2nd Department and Clinic of Obstetrics and Gynecology, Wroclaw Medical University, 50-556 Wroclaw, Poland;
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Guerby P, Tasta O, Swiader A, Pont F, Bujold E, Parant O, Vayssiere C, Salvayre R, Negre-Salvayre A. Role of oxidative stress in the dysfunction of the placental endothelial nitric oxide synthase in preeclampsia. Redox Biol 2021; 40:101861. [PMID: 33548859 PMCID: PMC7873691 DOI: 10.1016/j.redox.2021.101861] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/30/2020] [Accepted: 01/05/2021] [Indexed: 12/25/2022] Open
Abstract
Preeclampsia (PE) is a multifactorial pregnancy disease, characterized by new-onset gestational hypertension with (or without) proteinuria or end-organ failure, exclusively observed in humans. It is a leading cause of maternal morbidity affecting 3–7% of pregnant women worldwide. PE pathophysiology could result from abnormal placentation due to a defective trophoblastic invasion and an impaired remodeling of uterine spiral arteries, leading to a poor adaptation of utero-placental circulation. This would be associated with hypoxia/reoxygenation phenomena, oxygen gradient fluctuations, altered antioxidant capacity, oxidative stress, and reduced nitric oxide (NO) bioavailability. This results in part from the reaction of NO with the radical anion superoxide (O2•−), which produces peroxynitrite ONOO-, a powerful pro-oxidant and inflammatory agent. Another mechanism is the progressive inhibition of the placental endothelial nitric oxide synthase (eNOS) by oxidative stress, which results in eNOS uncoupling via several events such as a depletion of the eNOS substrate L-arginine due to increased arginase activity, an oxidation of the eNOS cofactor tetrahydrobiopterin (BH4), or eNOS post-translational modifications (for instance by S-glutathionylation). The uncoupling of eNOS triggers a switch of its activity from a NO-producing enzyme to a NADPH oxidase-like system generating O2•−, thereby potentiating ROS production and oxidative stress. Moreover, in PE placentas, eNOS could be post-translationally modified by lipid peroxidation-derived aldehydes such as 4-oxononenal (ONE) a highly bioreactive agent, able to inhibit eNOS activity and NO production. This review summarizes the dysfunction of placental eNOS evoked by oxidative stress and lipid peroxidation products, and the potential consequences on PE pathogenesis. Physiological ROS production is enhanced during pregnancy. eNOS is one of the main target of oxidative stress in PE placenta. eNOS is S-glutathionylated in PE placentas. eNOS is modified by lipid oxidation products in PE placentas.
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Affiliation(s)
- Paul Guerby
- Inserm U1048, Université de Toulouse, France; Gynecology and Obstetrics Department, Paule-de-Viguier Hospital, Toulouse University Hospital, France; Pôle Technologique du CRCT, Toulouse, France
| | - Oriane Tasta
- Inserm U1048, Université de Toulouse, France; Gynecology and Obstetrics Department, Paule-de-Viguier Hospital, Toulouse University Hospital, France
| | | | | | - Emmanuel Bujold
- Reproduction, Mother and Child Health Unit, CHU de Québec - Université Laval Research Centre, Université Laval, Québec, Canada
| | - Olivier Parant
- Gynecology and Obstetrics Department, Paule-de-Viguier Hospital, Toulouse University Hospital, France
| | - Christophe Vayssiere
- Gynecology and Obstetrics Department, Paule-de-Viguier Hospital, Toulouse University Hospital, France
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Trdin A, Snoj Tratnik J, Stajnko A, Marc J, Mazej D, Sešek Briški A, Kastelec D, Prpić I, Petrović O, Špirić Z, Horvat M, Falnoga I. Trace elements and APOE polymorphisms in pregnant women and their new-borns. ENVIRONMENT INTERNATIONAL 2020; 143:105626. [PMID: 32622117 DOI: 10.1016/j.envint.2020.105626] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 02/28/2020] [Accepted: 02/29/2020] [Indexed: 06/11/2023]
Abstract
We investigated the relationship between lipid binding glycoprotein apolipoprotein E (apoE; gene APOE) polymorphisms (ε4 allele carriers versus no carriers = ε4+/ε4-) and trace elements (TEs) (e.g., (methyl)mercury, arsenic, lead, cadmium, selenium, manganese, copper, and zinc) in mothers (N = 223) and their new-borns (N = 213) exposed to potentially toxic metal(loid)s from seafood consumption. The apoE isoform encoded by the ε4 allele is believed to have beneficial effects in early life but represents a risk factor for age-associated diseases. Under certain conditions ε4 carriers are more susceptible to oxidative stress and metal(loid) toxicity. DNA from Croatian pregnant women (N = 223, third trimester) and their new-borns (N = 176), was genotyped for APOE by TaqMan® SNP assay - rs429358 and rs7412. Seafood intake data and TE levels in maternal urine, milk, hair, peripheral venous blood, mixed cord blood, and new-borns' urine were available from previous studies. We compared TEs between ε4+ and ε4- carriers using Mann-Whitney U tests and applied multiple linear regression models to analyse the TE's dependence on the presence of allele ε4 (genotypes ε3/ε4, ε4/ε4) in combination with other explanatory variables. We identified 17% (n = 37) and 20% (n = 35) ε4 allele carriers in mothers and new-borns, respectively. The Mann-Whitney U test showed that mothers with the ε4 allele had significantly higher mean levels of (methyl)mercury in peripheral venous blood, cord blood, and hair; arsenic in urine and cord blood; and selenium in peripheral venous blood and plasma. However, taking confounders into account, only the maternal plasma selenium remained statistically significant in the linear regression models (ε4 carriers vs non-carriers: 62.6 vs 54.9 ng/mL, p < 0.001). Literature suggestions of possible ε4 allele impact on Hg levels were not observed, while superior selenium status observed in healthy pregnant women carrying allele ε4 could be linked to the proposed APOE ε4 beneficial effects early in life.
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Affiliation(s)
- Ajda Trdin
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
| | - Janja Snoj Tratnik
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Anja Stajnko
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
| | - Janja Marc
- Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Darja Mazej
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Alenka Sešek Briški
- Institute of Clinical Chemistry and Biochemistry, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | | | - Igor Prpić
- Department of Paediatrics, University Hospital Centre Rijeka, Rijeka, Croatia; Faculty of Medicine, University of Rijeka, Rijeka, Croatia
| | - Oleg Petrović
- Department of Paediatrics, University Hospital Centre Rijeka, Rijeka, Croatia
| | | | - Milena Horvat
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia; Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
| | - Ingrid Falnoga
- Department of Environmental Sciences, Jožef Stefan Institute, Ljubljana, Slovenia.
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11
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Comparative Phytochemical, Antioxidant, and Hemostatic Studies of Extract and Four Fractions from Paulownia Clone in Vitro 112 Leaves in Human Plasma. Molecules 2020; 25:molecules25194371. [PMID: 32977628 PMCID: PMC7583007 DOI: 10.3390/molecules25194371] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/12/2020] [Accepted: 09/18/2020] [Indexed: 12/17/2022] Open
Abstract
Background: The Paulownia Clone in Vitro 112, known as oxytree or oxygen tree, is a hybrid clone of the species Paulownia elongata and Paulownia fortunei (Paulowniaceae). The oxytree is a fast-growing hybrid cultivar that can adapt to wide variations in edaphic and climate conditions. In this work, Paulownia Clone in Vitro 112 leaves were separated into an extract and four fractions (A–D) differing in chemical content in order to investigate their chemical content using LC-MS analysis. The extract and fractions were also evaluated for their anticoagulant and antioxidant properties in a human plasma in vitro. Results: The Paulownia leaf extract contained mainly phenolic compounds (e.g., verbascoside), small amounts of iridoids (e.g., aucubin or 7-hydroxytometoside) and triterpenoids (e.g., maslinic acid) were also detected. Our results indicate that the extract and fractions have different effects on oxidative stress in human plasma treated with H2O2/Fe in vitro, which could be attributed to differences in their chemical content. For example, the extract and all the fractions, at the two highest concentrations of 10 and 50 µg/mL, significantly inhibited the plasma lipid peroxidation induced by H2O2/Fe. Fractions C and D, at all tested concentrations (1–50 µg/mL) were also found to protect plasma proteins against H2O2/Fe-induced carbonylation. The positive effects of fraction C and D were dependent on the dose. Conclusions: The extract and all four fractions, but particularly fractions C and D, which are rich in phenolic compounds, are novel sources of antioxidants, with an inhibitory effect on oxidative stress in human plasma in vitro. Additionally, the antioxidant potential of fraction D may be associated with triterpenoids.
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12
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Giller A, Andrawus M, Gutman D, Atzmon G. Pregnancy as a model for aging. Ageing Res Rev 2020; 62:101093. [PMID: 32502628 DOI: 10.1016/j.arr.2020.101093] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 04/21/2020] [Accepted: 05/23/2020] [Indexed: 12/12/2022]
Abstract
The process of aging can be defined as the sum accumulation of damages and changes in metabolism during the life of an organism, due to both genetic predisposition and stochastic damage. During the gestational period and following parturition, similar damage can be seen due to the strenuous effect on the maternal body, exhibited on both the physiological and cellular level. In this review, we will focus on the similar physiological and cellular characteristics exhibited during pregnancy and aging, including induction of and response to oxidative stress, inflammation, and degradation of telomeres. We will evaluate any similar processes between aging and pregnancy by comparing common biomarkers, pathologies, and genetic and epigenetic effects, to establish the pregnant body as a model for aging. This review will approach the connection both in respect to current theories on aging as a byproduct of natural selection, and regarding unrelated biochemical similarities between the two, drawing on existing studies and models in humans and other species where relevant alike. Furthermore, we will show the response of the pregnant body to these changes, and through that illuminate unique areas of potential study to advance our knowledge of the maladies relating to aging and pregnancy, and an avenue for solutions.
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Affiliation(s)
- Abram Giller
- Faculty of Natural Sciences, University of Haifa, 199 Aba Khoushy Ave., Mount Carmel, Haifa, 349888, Israel
| | - Mariana Andrawus
- Faculty of Natural Sciences, University of Haifa, 199 Aba Khoushy Ave., Mount Carmel, Haifa, 349888, Israel
| | - Danielle Gutman
- Faculty of Natural Sciences, University of Haifa, 199 Aba Khoushy Ave., Mount Carmel, Haifa, 349888, Israel
| | - Gil Atzmon
- Faculty of Natural Sciences, University of Haifa, 199 Aba Khoushy Ave., Mount Carmel, Haifa, 349888, Israel; Departments of Genetics and Medicine, Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, New York, 10461, USA.
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13
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Placental Adaptive Changes to Protect Function and Decrease Oxidative Damage in Metabolically Healthy Maternal Obesity. Antioxidants (Basel) 2020; 9:antiox9090794. [PMID: 32859037 PMCID: PMC7555720 DOI: 10.3390/antiox9090794] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 12/12/2022] Open
Abstract
Pregnancy-related disorders, including preeclampsia and gestational diabetes, are characterized by the presence of an adverse intrauterine milieu that may ultimately result in oxidative and nitrosative stress. This scenario may trigger uncontrolled production of reactive oxygen species (ROS) such as superoxide anion (O●−) and reactive nitrogen species (RNS) such as nitric oxide (NO), along with an inactivation of antioxidant systems, which are associated with the occurrence of relevant changes in placental function through recognized redox post-translational modifications in key proteins. The general objective of this study was to assess the impact of a maternal obesogenic enviroment on the regulation of the placental nitroso-redox balance at the end of pregnancy. We measured oxidative damage markers—thiobarbituric acid-reacting substances (TBARS) and carbonyl groups (C=O) levels; nitrosative stress markers—inducible nitric oxide synthase, nitrosothiol groups, and nitrotyrosine residues levels; and the antioxidant biomarkers—catalase and superoxide dismutase (SOD) activity and expression, and total antioxidant capacity (TAC), in full-term placental villous from both pre-pregnancy normal weight and obese women, and with absence of metabolic complications throughout gestation. The results showed a decrease in C=O and TBARS levels in obese pregnancies. Although total SOD and catalase concentrations were shown to be increased, both activities were significantly downregulated in obese pregnancies, along with total antioxidant capacity. Inducible nitric oxide sintase levels were increased in the obese group compared to the lean group, accompanied by an increase in nitrotyrosine residues levels and lower levels of nitrosothiol groups in proteins such as ERK1/2. These findings reveal a reduction in oxidative damage, accompanied by a decline in antioxidant response, and an increase via NO-mediated nitrative stress in placental tissue from metabolically healthy pregnancies with obesity. All this plausibly points to a placental adaptation of the affected antioxidant response towards a NO-induced alternative pathway, through changes in the ROS/RNS balance, in order to reduce oxidative damage and preserve placental function in pregnancy.
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14
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Blay RM, Arko-Boham B, Addai FK. Natural cocoa improves birth weight and viability of rabbit pups born to hypercholesterolemic mothers. SCIENTIFIC AFRICAN 2020. [DOI: 10.1016/j.sciaf.2020.e00268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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15
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Teimoori B, Moradi-Shahrebabak M, Razavi M, Rezaei M, Harati-Sadegh M, Salimi S. The effect of GPx-1 rs1050450 and MnSOD rs4880 polymorphisms on PE susceptibility: a case- control study. Mol Biol Rep 2019; 46:6099-6104. [PMID: 31512047 DOI: 10.1007/s11033-019-05045-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 08/27/2019] [Indexed: 12/26/2022]
Abstract
Preeclampsia (PE) is a serious pregnancy complication whose etiology is not fully understood. However, previous reports have suggested that oxidative stress and genetic variants may contribute to the development of PE. This study aimed to examine the relationship between the Glutathione peroxidase-1(GPx-1) and Manganese Superoxide dismutase (MnSOD) polymorphisms and preeclampsia (PE) risk in Iranian women. Genotyping of the studied women, including 179 preeclamptic cases and 202 controls, for GPx-1 rs1050450 and MnSOD rs4880 polymorphisms was conducted using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Our results showed a 1.7- to 1.6-fold increased risk of PE in the rs1050450 CT and CT + TT (dominant model) genotypes compared to CC genotype (OR = 1.7, 95%CI 1.1-2.7; P = 0.01 and OR = 1.6, 95%CI 1.1-2.4; P = 0.02; respectively). We also found a marked correlation between TC and CC genotypes of MnSOD rs4880 polymorphism and a 1.9- to 2.3-fold increase risk of PE (OR = 1.9, 95%CI 1.2-2.9; P = 0.005 and OR = 2.3, 95%CI 1-5.1; P = 0.04, respectively). The rs4880 MnSOD polymorphism was correlated with increased risk of PE in the allelic and dominant models (OR = 1.8, 95% CI 1.2-2.5, P = 0.002; OR = 1.9, 95%CI 1.3-3, P = 0.002, respectively). High frequency of TC/CC genotype of MnSOD rs4880 and CT genotypes of rs1050450 polymorphism in PE patients compared to controls showed the contribution of these variants to PE susceptibility.
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Affiliation(s)
- Batool Teimoori
- Department of Obstetrics and Gynecology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Maryam Moradi-Shahrebabak
- Department of Obstetrics and Gynecology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Maryam Razavi
- Department of Obstetrics and Gynecology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mahnaz Rezaei
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
- Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mahdiyeh Harati-Sadegh
- Genetic of Non-Communicable Disease Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Saeedeh Salimi
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.
- Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
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16
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Pannu N, Singh R, Sharma S, Chopra S, Bhatnagar A. Altered Tregs and oxidative stress in pregnancy associated lupus. Adv Rheumatol 2019; 59:38. [PMID: 31412940 DOI: 10.1186/s42358-019-0082-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 08/07/2019] [Indexed: 12/14/2022] Open
Abstract
AIM SLE is a systemic autoimmune disease generally affecting woman in the reproductive age. It is associated with an altered level of Tregs and oxidative stress while an increase in Tregs, and different antioxidant mechanisms to combat oxidative stress are essential for successful pregnancy. Hence, this study aims to determine the level of CD4+ and CD8+ Tregs and oxidative stress in pregnant lupus patients. METHODS Ten healthy and 10 pregnant lupus volunteers from the North Indian population, within the age group of 20-30 years were enrolled in the study. All the patients were non-smokers, non-alcoholics and were not associated or undergoing therapy for any other disease. They had a SLEDAI of 37.4 ± 7.32 with 5.2 ± 1.93 years of disease duration. Oxidative stress was determined by measuring the enzyme activity of anti-oxidant enzymes (catalase, superoxide dismutase and glutathione peroxidase) and the level of reduced glutathione and lipids peroxidised, spectrophotometrically. Flowcytometry was performed for immunophenotyping to determine CD8+ and CD4+ Tregs. RESULTS Elevated CD8+ Tregs and diminished CD4+ Tregs were observed in pregnant lupus patients. Oxidative stress was significantly increased as the activities of anti-oxidant enzymes and level of reduced glutathione was considerably diminished. There was a substantial increase in the amount of lipids peroxidised. CONCLUSION Pregnant lupus patients undergo considerable level of oxidative stress in comparison to healthy pregnant woman. The decreased level of CD4+ Tregs and an increase in CD8+ Tregs might be another important factor responsible for pregnancy associated complications. Hence, lupus leads to alterations in the necessary conditions for a successful pregnancy, which might eventually cause higher mortality, morbidity and associated complications.
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Affiliation(s)
- Naveet Pannu
- Department of Biochemistry, Panjab University, Chandigarh, 160014, India
| | - Rashmi Singh
- Department of Biochemistry, Panjab University, Chandigarh, 160014, India
| | - Sukriti Sharma
- Department of Biochemistry, Panjab University, Chandigarh, 160014, India
| | - Seema Chopra
- Department of Obstetrics and Gynaecology, PGIMER, Chandigarh, 160012, India
| | - Archana Bhatnagar
- Department of Biochemistry, Panjab University, Chandigarh, 160014, India.
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17
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Awobajo FO, Morakinyo AO, Samuel TA, Oyelowo OT, Ogunsola AO, Onyekwele PU, Okedina ME, Ogunbanwo OO. Dynamics of inflammatory reaction and oxidative stress across maternal serum, placenta and amniotic fluid in laboratory rats and the role played by genistein aglycone. J Basic Clin Physiol Pharmacol 2019; 30:37-45. [PMID: 30332393 DOI: 10.1515/jbcpp-2018-0070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 07/11/2018] [Indexed: 02/03/2023]
Abstract
Background Genistein was reported to adversely influence fetal development although this is yet to be fully understood as a mechanism. Methods In this study, pregnant rats were divided into control (Cont.) and genistein force-fed (2-mg/kg and 4-mg/kg) groups. Each group was divided further into five subgroups: GD-0, GD-6, GD-13, GD-18, and GD-20 based on the terminal gestational day (GD). On the respective terminal GD, the rats were sacrificed and blood samples and amniotic fluid were carefully collected and separated and placenta homogenates were prepared. These samples were evaluated for oxidative stress and inflammatory reaction. The weights of embryonic implant and placenta tissue were also recorded. Heat shock protein (Hsp) (60 and 90), corticosterone, and oxidative stress biomarkers were determined in all the samples. Results Fetal and placental weights in all genistein-exposed groups were significantly decreased. A fluctuation in the level of the Hsp was recorded with a significant decrease recorded in Hsp90 level in the placenta and amniotic fluid towards GD-20 along with a concomitant increase in the corticosterone level in the amniotic fluid in all genistein groups compared to control. Maternal serum at GD-18 and GD -20 recorded a significant increase in antioxidant level (SOD, GSH, CAT) in all genistein-exposed groups. However, these antioxidants were significantly reduced in the placenta and the amniotic fluid compared to control. Conclusions Genistein enhances the placenta function in attenuating the risk of oxidative stress in the amniotic fluid and deferentially suppressed inflammatory activities in the placenta during early gestation and towards late gestation period.
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Affiliation(s)
- Funmileyi O Awobajo
- Department of Physiology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Room 006, Block F, Idi-araba, Surulere, Lagos, Nigeria, Phone: +23408053416937
| | - Ayodele O Morakinyo
- Department of Physiology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Titilola A Samuel
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Oluwakemi T Oyelowo
- Department of Physiology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Abimbola O Ogunsola
- Department of Physiology, Ben Carson School of Medicine, Babcock University, Ilisan-Remo,Ogun State, Nigeria
| | - Perpetual U Onyekwele
- Department of Physiology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Mosunmola E Okedina
- Department of Physiology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Oluwadamilola O Ogunbanwo
- Department of Physiology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria
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18
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Jantsch LB, de Lucca L, Dorneles BN, Konopka CK, Gonçalves TDL. Evaluation of oxidative stress and δ-aminolevulinate dehydratase activity in twin pregnancies. J Matern Fetal Neonatal Med 2019; 33:3071-3076. [PMID: 30688119 DOI: 10.1080/14767058.2019.1568980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Purpose: To assess and understand the maternal oxidative stress in twin pregnancies, currently not studied, through ascertain indicators of oxidative damage in maternal blood in response of two fetuses, as well as the relation of placenta with or without the increase of oxidative stress in these gestations.Materials and methods: The activity of delta-aminolevulinate dehydratase (δ-ALA-D) was analyzed as an indirect marker of oxidative stress, as well as the quantification of thiobarbituric acid reactive substances (TBARS), protein thiol groups (P-SH) and nonprotein thiol groups (NP-SH), vitamin C (VIT C) and catalase activity (CAT) in maternal blood samples from twin (n = 30) and single (n = 30) pregnancies. This study was approved by the Human Ethics Committee UFSM (register by the number 49823015.4.0000.5346).Results: TBARS was significantly higher in twin pregnancies, while thiol groups, VIT C and CAT were decreased, asides from the reduced activity of δ-ALA-D in comparison to single fetus gestations.Conclusions: The study established an oxidative stress increased and an antioxidant ability decreased in twin pregnancies, suggesting a possible relation between the levels of oxidants and antioxidants with the complications in those gestations.
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Affiliation(s)
- Letícia Bigolin Jantsch
- Department of Clinical and Toxicology Analysis, Postgraduate Program in Pharmaceutical Sciences, Center of Healthy Sciences, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Leidiane de Lucca
- Department of Clinical and Toxicology Analysis, Postgraduate Program in Pharmaceutical Sciences, Center of Healthy Sciences, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Bárbara Nicoli Dorneles
- Department of Clinical and Toxicology Analysis, Postgraduate Program in Pharmaceutical Sciences, Center of Healthy Sciences, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Cristine Kolling Konopka
- Department of Obstetrics and Gynecology, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Thissiane de Lima Gonçalves
- Department of Clinical and Toxicology Analysis, Postgraduate Program in Pharmaceutical Sciences, Center of Healthy Sciences, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
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Zhu FQ, Hu J, Lv FH, Cheng P, Gao S. Effects of oligomeric grape seed proanthocyanidins on L-NAME-induced hypertension in pregnant mice: Role of oxidative stress and endothelial dysfunction. Phytother Res 2018; 32:1836-1847. [PMID: 29851183 DOI: 10.1002/ptr.6119] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 04/27/2018] [Accepted: 04/27/2018] [Indexed: 01/26/2023]
Abstract
The aim of this study was to investigate the effects of Grape Seed Proanthocyanidins (GSP) on Nω-Nitro-L-arginine methyl ester-induced hypertension in pregnant mice. Fifty Kunming mice were randomized into control, control + GSP, model, and model + GSP. Three weeks later, the artery systolic blood pressure was examined and the related pathological changes were detected. Aorta relaxation function was assessed by aorta ring apparatus. Blood urea nitrogen and serum creatinine were measured by an automatic biochemistry analyzer. Colorimetric analysis, enzyme-linked immunosorbent assay, immunofluorescence, and western blot were applied to detect related indicator in serum, cardiac, and kidney tissues. The results showed that GSP treatment for 3 weeks could improve cardiovascular and kidney remodeling indexes and decrease blood urea nitrogen and serum creatinine content in serum, as well as could ameliorate oxidative stress status and endothelial dysfunction. Therefore, it is for the first time found that GSP exerts protective effect against Nω-Nitro-L-arginine methyl ester-induced hypertension in pregnant mice, which provided a theoretical basis for potential application in the clinic.
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Affiliation(s)
- Feng-Qin Zhu
- Dept of Obstetrics and Gynecology, the Second Peoples Hospital of Hefei, Affiliated Hefei Hospital of Anhui Medical University, Hefei, 230011, China
| | - Juan Hu
- Department of Pharmacology, Basic Medical College, Anhui Medical University, Hefei, 230032, China
| | - Fa-Hui Lv
- Dept of Obstetrics and Gynecology, the Second Peoples Hospital of Hefei, Affiliated Hefei Hospital of Anhui Medical University, Hefei, 230011, China
| | - Pan Cheng
- Department of Pharmacology, Basic Medical College, Anhui Medical University, Hefei, 230032, China
| | - Shan Gao
- Department of Pharmacology, Basic Medical College, Anhui Medical University, Hefei, 230032, China
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20
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Üstündağ Y, Demirci H, Balık R, Erel O, Özaydın F, Kücük B, Ertaş D, Ustunyurt E. Thiol/disulfide homeostasis in pregnant women with obstructive sleep apnea syndrome. J Matern Fetal Neonatal Med 2017; 32:1136-1141. [DOI: 10.1080/14767058.2017.1401995] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Yasemin Üstündağ
- Clinical Biochemistry, Saglik Bilimleri University, Bursa Yuksek Ihtisas Education and Research Hospital, Bursa, Turkey
| | - Hakan Demirci
- Family Medicine, Saglik Bilimleri University, Bursa Yuksek Ihtisas Education and Research Hospital, Bursa, Turkey
| | - Rifat Balık
- Ankara Atatürk Training and Research Hospital, Biochemistry, Ankara, Turkey
| | - Ozcan Erel
- Department of Biochemistry, Faculty of Medicine, Yıldırım Beyazıt University, Ankara, Turkey
| | - Fahri Özaydın
- Family Medicine, Saglik Bilimleri University, Bursa Yuksek Ihtisas Education and Research Hospital, Bursa, Turkey
| | - Bilgen Kücük
- Family Medicine, Saglik Bilimleri University, Bursa Yuksek Ihtisas Education and Research Hospital, Bursa, Turkey
| | - Dilber Ertaş
- Family Medicine, Saglik Bilimleri University, Bursa Yuksek Ihtisas Education and Research Hospital, Bursa, Turkey
| | - Emin Ustunyurt
- Obstetrics and Gynecology, Saglik Bilimleri University, Bursa Yuksek Ihtisas Education and Research Hospital, Bursa, Turkey
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Rodrigues F, de Lucca L, Neme WS, Gonçalves TDL. Influence of gestational diabetes on the activity of δ-aminolevulinate dehydratase and oxidative stress biomarkers. Redox Rep 2017; 23:63-67. [PMID: 29148924 PMCID: PMC6748687 DOI: 10.1080/13510002.2017.1402981] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Objective: This study aimed to evaluate the activity of
delta-aminolevulinate dehydratase (δ-ALA-D) and oxidative stress
biomarkers in pregnant women with gestational diabetes mellitus (GDM), in order
to demonstrate the involvement of oxidative stress in this condition, which
presents pathophysiology still undetermined. Methods: δ-ALA-D activity, lipid peroxidation estimated as the
levels of thiobarbituric acid reactive substances (TBARS), protein (P-SH) and
non-protein thiol (NP-SH) content, catalase (CAT) activity and concentration of
vitamin C (VIT C) in samples of pregnant women with GDM
(n = 48) and in healthy pregnant women
(n = 30), who constituted the control
group. Results: The δ-ALA-D activity was significantly lower in
pregnant women with GDM compared to controls, as well as levels of thiols, VIT C
and CAT activity. Lipid peroxidation was higher in GDM group. Discussion: The results suggest that the main factor for the
increase in oxidative stress and reduced δ-ALA-D activity in diabetic
pregnant women is gestational hyperglycemic environment, which changed the redox
balance and interfered on mechanism of the δ-ALA-D activity in relation to
normoglycemic pregnant women.
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Affiliation(s)
- Fabiane Rodrigues
- a Department of Clinical and Toxicology Analysis, Center of Healthy Sciences , Federal University of Santa Maria (UFSM) , Santa Maria , RS , Brazil
| | - Leidiane de Lucca
- a Department of Clinical and Toxicology Analysis, Center of Healthy Sciences , Federal University of Santa Maria (UFSM) , Santa Maria , RS , Brazil
| | - Walter S Neme
- b Department of Obstetrics and Gynecology , Federal University of Santa Maria (UFSM) , Santa Maria , RS , Brazil
| | - Thissiane de Lima Gonçalves
- a Department of Clinical and Toxicology Analysis, Center of Healthy Sciences , Federal University of Santa Maria (UFSM) , Santa Maria , RS , Brazil
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A comparison of the effects of lindane and FeCl 3/ADP on spontaneous contractions in isolated rat or human term myometrium. Reprod Toxicol 2017; 74:164-173. [PMID: 28970134 DOI: 10.1016/j.reprotox.2017.09.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 09/26/2017] [Accepted: 09/27/2017] [Indexed: 11/22/2022]
Abstract
Oxidative stress affects the contractile behavior of smooth muscle resulting in complications during labor. Toxicants such as lindane and ferric chloride (FeCl3)/adenosine diphosphate (ADP) cause oxidative stress and have previously been shown to inhibit smooth muscle contraction. In this study we examined the effects of the oxygen species scavengers, ascorbic acid and N-acetylcysteine on lindane and FeCl3/ADP's inhibition of spontaneous myometrial contractions in rat and human myometrium. Lindane and FeCl3/ADP gave rise to concentration-dependent reductions in rat (EC50 11.8×10-6M and 0.9×10-3M) and human myometrial contractions (EC50 16.3×10-6M and 1.1×10-3M, respectively). Pre-treatment with N-acetylcysteine significantly increased the EC50 for the effects of lindane on motility index of human tissue and reduced the maximum inhibitory effect of FeCl3/ADP on contractions in both rat and human myometrium. Ascorbic acid reduced the effects of FeCl3/ADP in rat tissue only. In conclusion pre-treatment with specific antioxidants may protect both rat and human myometrium from the inhibitory effects of lindane and FeCl3/ADP.
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Characterization of NO-Induced Nitrosative Status in Human Placenta from Pregnant Women with Gestational Diabetes Mellitus. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:5629341. [PMID: 28400911 PMCID: PMC5376459 DOI: 10.1155/2017/5629341] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 12/02/2016] [Accepted: 12/15/2016] [Indexed: 01/24/2023]
Abstract
Dysregulation of NO production is implicated in pregnancy-related diseases, including gestational diabetes mellitus (GDM). The role of NO and its placental targets in GDM pregnancies has yet to be determined. S-Nitrosylation is the NO-derived posttranslational protein modification that can modulate biological functions by forming NO-derived complexes with longer half-life, termed S-nitrosothiol (SNO). Our aim was to examine the presence of endogenous S-nitrosylated proteins in cysteine residues in relation to antioxidant defense, apoptosis, and cellular signal transduction in placental tissue from control (n = 8) and GDM (n = 8) pregnancies. S-Nitrosylation was measured using the biotin-switch assay, while the expression and protein activity were assessed by immunoblotting and colorimetric methods, respectively. Results indicated that catalase and peroxiredoxin nitrosylation levels were greater in GDM placentas, and that was accompanied by reduced catalase activity. S-Nitrosylation of ERK1/2 and AKT was increased in GDM placentas, and their activities were inhibited. Activities of caspase-3 and caspase-9 were increased, with the latter also showing diminished nitrosylation levels. These findings suggest that S-nitrosylation is a little-known, but critical, mechanism by which NO directly modulates key placental proteins in women with GDM and, as a consequence, maternal and fetal anomalies during pregnancy can occur.
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Perrone S, Santacroce A, Picardi A, Buonocore G. Fetal programming and early identification of newborns at high risk of free radical-mediated diseases. World J Clin Pediatr 2016; 5:172-181. [PMID: 27170927 PMCID: PMC4857230 DOI: 10.5409/wjcp.v5.i2.172] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 10/30/2015] [Accepted: 02/16/2016] [Indexed: 02/06/2023] Open
Abstract
Nowadays metabolic syndrome represents a real outbreak affecting society. Paradoxically, pediatricians must feel involved in fighting this condition because of the latest evidences of developmental origins of adult diseases. Fetal programming occurs when the normal fetal development is disrupted by an abnormal insult applied to a critical point in intrauterine life. Placenta assumes a pivotal role in programming the fetal experience in utero due to the adaptive changes in structure and function. Pregnancy complications such as diabetes, intrauterine growth restriction, pre-eclampsia, and hypoxia are associated with placental dysfunction and programming. Many experimental studies have been conducted to explain the phenotypic consequences of fetal-placental perturbations that predispose to the genesis of metabolic syndrome, obesity, diabetes, hyperinsulinemia, hypertension, and cardiovascular disease in adulthood. In recent years, elucidating the mechanisms involved in such kind of process has become the challenge of scientific research. Oxidative stress may be the general underlying mechanism that links altered placental function to fetal programming. Maternal diabetes, prenatal hypoxic/ischaemic events, inflammatory/infective insults are specific triggers for an acute increase in free radicals generation. Early identification of fetuses and newborns at high risk of oxidative damage may be crucial to decrease infant and adult morbidity.
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De Lucca L, Rodrigues F, Jantsch LB, Neme WS, Gallarreta FMP, Gonçalves TL. Oxidative Profile and δ-Aminolevulinate Dehydratase Activity in Healthy Pregnant Women with Iron Supplementation. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13050463. [PMID: 27153075 PMCID: PMC4881088 DOI: 10.3390/ijerph13050463] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 04/25/2016] [Accepted: 04/28/2016] [Indexed: 01/22/2023]
Abstract
An oxidative burst occurs during pregnancy due to the large consumption of oxygen in the tissues and an increase in metabolic demands in response to maternal physiological changes and fetal growth. This study aimed to determine the oxidative profile and activity of δ-aminolevulinate dehydratase (δ-ALA-D) in pregnant women who received iron supplementation. Oxidative stress parameters were evaluated in 25 pregnant women with iron supplementation, 25 pregnant women without supplementation and 25 non-pregnant women. The following oxidative stress parameters were evaluated: thiobarbituric acid reactive substances (TBARS), protein thiol groups (P-SH), non-protein thiol levels (NP-SH), vitamin C levels, catalase and δ-ALA-D activity. Markers of oxidative stress and cell damage, such as TBARS in plasma were significantly higher in pregnant women without supplementation. Levels of P-SH, NP-SH and δ-ALA-D activity were significantly lower in pregnant women without supplementation compared to non-pregnant and pregnant women with supplementation, while vitamin C levels were significantly lower in pregnant women without supplementation when compared to non-pregnant women. The increase in the generation of oxidative species and decrease of antioxidants suggest the loss of physiological oxidative balance during normal pregnancy, which was not observed in pregnant women with iron supplementation, suggesting a protective effect of iron against oxidative damage.
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Affiliation(s)
- Leidiane De Lucca
- Postgraduate Program in Pharmaceutical Sciences, Department of Clinical and Toxicology Analysis, Center of Healthy Sciences, Federal University of Santa Maria (UFSM), Santa Maria 97105-900, Brazil.
| | - Fabiane Rodrigues
- Postgraduate Program in Pharmaceutical Sciences, Department of Clinical and Toxicology Analysis, Center of Healthy Sciences, Federal University of Santa Maria (UFSM), Santa Maria 97105-900, Brazil.
| | - Letícia B Jantsch
- Postgraduate Program in Pharmaceutical Sciences, Department of Clinical and Toxicology Analysis, Center of Healthy Sciences, Federal University of Santa Maria (UFSM), Santa Maria 97105-900, Brazil.
| | - Walter S Neme
- Departamet of Obstetrics and Gynecology, Federal University of Santa Maria (UFSM), Santa Maria 97105-900, Brazil.
| | - Francisco M P Gallarreta
- Departamet of Obstetrics and Gynecology, Federal University of Santa Maria (UFSM), Santa Maria 97105-900, Brazil.
| | - Thissiane L Gonçalves
- Postgraduate Program in Pharmaceutical Sciences, Department of Clinical and Toxicology Analysis, Center of Healthy Sciences, Federal University of Santa Maria (UFSM), Santa Maria 97105-900, Brazil.
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Furukawa S, Nakajima A, Sameshima H. The longitudinal change of extracellular antioxidant status during pregnancy using an electron spin resonance method. J Matern Fetal Neonatal Med 2015; 29:2994-9. [PMID: 26513493 DOI: 10.3109/14767058.2015.1112370] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To evaluate the longitudinal change of extracellular antioxidant status during pregnancy. METHODS A longitudinal study involving 21 cases of pregnant women without medical disorders and had a vaginal birth was undertaken. Blood was obtained at early, mid and late pregnancy, labor onset, and postpartum day 1 and 5. We measured oxygen radical absorbance capacity (ORAC) and superoxide radical-eliminating ability (SREA) in serum using an electron spin resonance method. Twelve healthy volunteers were recruited as controls. Longitudinal and temporal changes were compared. RESULTS ORAC increased significantly during the antepartum period (at early, mid and late pregnancy), decreased once during the peripartum period (in labor and day 1), and then recovered at day 5. SREA showed a similar tendency as ORAC. Interestingly, the ORAC of controls (919.7 ± 48.2 µmol TE/L) was significantly higher than those pregnant women at early pregnancy (early pregnancy: 699.2 ± 127.5, p < 0.01) and day 1 (740.3 ± 101.0, p < 0.01). The ORAC of controls was comparable to at late pregnancy and day 5 (1066.4 ± 189.6 and 920.3 ± 106.6, respectively). The SREA of controls (77.8 ± 31.2 arbitrary unit) was high, but there was no significant difference against the study group. CONCLUSION Antioxidant ability of serum clearly fluctuated during periods that may be critical, namely, early pregnancy and peripartum period.
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Affiliation(s)
- Seishi Furukawa
- a Department of Obstetrics & Gynecology , Faculty of Medicine, University of Miyazaki , Miyazaki , Japan
| | - Akira Nakajima
- a Department of Obstetrics & Gynecology , Faculty of Medicine, University of Miyazaki , Miyazaki , Japan
| | - Hiroshi Sameshima
- a Department of Obstetrics & Gynecology , Faculty of Medicine, University of Miyazaki , Miyazaki , Japan
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Bonfim-Mendonça PDS, Ratti BA, Godoy JDSR, Negri M, de Lima NCA, Fiorini A, Hatanaka E, Consolaro MEL, de Oliveira Silva S, Svidzinski TIE. β-Glucan induces reactive oxygen species production in human neutrophils to improve the killing of Candida albicans and Candida glabrata isolates from vulvovaginal candidiasis. PLoS One 2014; 9:e107805. [PMID: 25229476 PMCID: PMC4168232 DOI: 10.1371/journal.pone.0107805] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 08/14/2014] [Indexed: 12/02/2022] Open
Abstract
Vulvovaginal candidiasis (VVC) is among the most prevalent vaginal diseases. Candida albicans is still the most prevalent species associated with this pathology, however, the prevalence of other Candida species, such as C. glabrata, is increasing. The pathogenesis of these infections has been intensely studied, nevertheless, no consensus has been reached on the pathogenicity of VVC. In addition, inappropriate treatment or the presence of resistant strains can lead to RVVC (vulvovaginal candidiasis recurrent). Immunomodulation therapy studies have become increasingly promising, including with the β-glucans. Thus, in the present study, we evaluated microbicidal activity, phagocytosis, intracellular oxidant species production, oxygen consumption, myeloperoxidase (MPO) activity, and the release of tumor necrosis factor α (TNF-α), interleukin-8 (IL-8), IL-1β, and IL-1Ra in neutrophils previously treated or not with β-glucan. In all of the assays, human neutrophils were challenged with C. albicans and C. glabrata isolated from vulvovaginal candidiasis. β-glucan significantly increased oxidant species production, suggesting that β-glucan may be an efficient immunomodulator that triggers an increase in the microbicidal response of neutrophils for both of the species isolated from vulvovaginal candidiasis. The effects of β-glucan appeared to be mainly related to the activation of reactive oxygen species and modulation of cytokine release.
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Affiliation(s)
| | - Bianca Altrão Ratti
- Departamento de Ciências Básicas da Saúde, Universidade Estadual de Maringá, Maringá, Paraná, Brasil
| | | | - Melyssa Negri
- Departamento de Análises Clínicas e Biomedicina, Universidade Estadual de Maringá, Maringá, Paraná, Brasil
| | | | - Adriana Fiorini
- Departamento de Análises Clínicas e Biomedicina, Universidade Estadual de Maringá, Maringá, Paraná, Brasil
| | - Elaine Hatanaka
- Instituto de Ciências da Atividade Física e Esporte, Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brasil
| | | | - Sueli de Oliveira Silva
- Departamento de Ciências Básicas da Saúde, Universidade Estadual de Maringá, Maringá, Paraná, Brasil
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Spada APM, Damasceno DC, Sinzato YK, Campos KE, Faria PA, Dallaqua B, Calderon IMP, Rudge MVC, Rodrigues T. Oxidative Stress in Maternal Blood and Placenta From Mild Diabetic Rats. Reprod Sci 2014; 21:973-977. [PMID: 24458484 DOI: 10.1177/1933719113519175] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The aim of the present study was at evaluating the effects of oxidative stress in blood and placenta of mild diabetic Wistar rats. At birth, Wistar rats received citrate buffer (nondiabetic group, n = 15) and another group received streptozotocin (100 mg/kg, subcutaneous) to induce mild diabetes (diabetic, n = 15). The glycemia of these pregnant adult female rats were evaluated at days 0, 7, 14, and 21 of pregnancy, and at term pregnancy, the blood and placental samples were collected for oxidative stress measurements. The mild diabetes caused glycemia superior to 120 mg/dL during pregnancy, increased superoxide dismutase, glutathione peroxidase, glutathione reductase activities, and malondialdehyde levels in the blood, and catalase activity in the placenta. Thus, mild diabetes increased activities of antioxidant substances aiming at defending against the exacerbated oxidative stress but were not enough. The placenta also answered to diabetic milieu and increased antioxidant defense, showing that even a mild hyperglycemia was enough to cause placental and maternal blood changes.
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Affiliation(s)
- Ana Paula Machado Spada
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, UNESP_Univ. Estadual Paulista, Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu, São Paulo State, Brazil
| | - Débora Cristina Damasceno
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, UNESP_Univ. Estadual Paulista, Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu, São Paulo State, Brazil
| | - Yuri Karen Sinzato
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, UNESP_Univ. Estadual Paulista, Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu, São Paulo State, Brazil
| | - Kleber Eduardo Campos
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, UNESP_Univ. Estadual Paulista, Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu, São Paulo State, Brazil Institute of Biological and Health Sciences, University Center of Araguaia, Mato Grosso Federal University (UFMT), Barra do Garças, Mato Grosso, Brazil
| | | | - Bruna Dallaqua
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, UNESP_Univ. Estadual Paulista, Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu, São Paulo State, Brazil
| | - Iracema Mattos Paranhos Calderon
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, UNESP_Univ. Estadual Paulista, Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu, São Paulo State, Brazil
| | - Marilza Vieira Cunha Rudge
- Graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, UNESP_Univ. Estadual Paulista, Laboratory of Experimental Research on Gynecology and Obstetrics, Botucatu, São Paulo State, Brazil
| | - Tiago Rodrigues
- Federal University from ABC (UFABC), São Paulo, São Paulo State, Brazil
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Lazarin-Bidóia D, Desoti VC, Ueda-Nakamura T, Dias Filho BP, Nakamura CV, Silva SO. Further evidence of the trypanocidal action of eupomatenoid-5: confirmation of involvement of reactive oxygen species and mitochondria owing to a reduction in trypanothione reductase activity. Free Radic Biol Med 2013; 60:17-28. [PMID: 23376033 DOI: 10.1016/j.freeradbiomed.2013.01.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 01/11/2013] [Indexed: 02/08/2023]
Abstract
Our group assays natural products that are less toxic and more effective than available nitroheterocycles as promising therapeutic options for patients with Chagas disease. Our previous study reported the trypanocidal activity of eupomatenoid-5, a neolignan isolated from the leaves of Piper regnellii var. pallescens, against the three main parasitic forms of Trypanosoma cruzi. The present study further characterizes the biochemical and morphological alterations induced by this compound to elucidate the mechanisms of action involved in the cell death of T. cruzi. We show that eupomatenoid-5 induced oxidative imbalance in the three parasitic forms, especially trypomastigotes, reflected by a decrease in the activity of trypanothione reductase and increase in the formation of reactive oxygen species (ROS). A reduction of mitochondrial membrane potential was then triggered, further impairing the cell redox system through the production of more ROS and reactive nitrogen species. Altogether, these effects led to oxidative stress, reflected by lipid peroxidation and DNA fragmentation. These alterations are key events in the induction of parasite death through various pathways, including apoptosis, necrosis, and autophagy.
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Affiliation(s)
- D Lazarin-Bidóia
- Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Estadual de Maringá, 87020-900 Maringá, PR, Brasil
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Eupomatenoid-5 Isolated from Leaves of Piper regnellii Induces Apoptosis in Leishmania amazonensis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:940531. [PMID: 23573160 PMCID: PMC3618946 DOI: 10.1155/2013/940531] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 02/26/2013] [Indexed: 11/24/2022]
Abstract
Leishmania spp. are protozoa responsible for leishmaniasis, a neglected disease that kills up to 50,000 people every year. Current therapies mainly rely on antimonial drugs that are inadequate because of their poor efficacy and safety and increased drug resistance. An urgent need exists to find new and more affordable drugs. Our previous study demonstrated the antileishmanial activity of eupomatenoid-5, a neolignan obtained from leaves of Piper regnellii var. pallescens. The aim of the present study was to clarify the mode of action of eupomatenoid-5 against L. amazonensis. We used biochemical and morphological techniques and demonstrated that eupomatenoid-5 induced cell death in L. amazonensis promastigotes, sharing some phenotypic features observed in metazoan apoptosis, including increased reactive oxygen species production, hypopolarization of mitochondrial potential, phosphatidylserine exposure, decreased cell volume, and G0/G1 phase cell cycle arrest.
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Kaya S, Keskin HL, Kaya B, Ustuner I, Avsar AF. Reduced total antioxidant status in postterm pregnancies. Hippokratia 2013; 17:55-59. [PMID: 23935345 PMCID: PMC3738279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
BACKGROUND The placenta is the major source of oxidative stress in normal human pregnancy. The placental tissue is typically functional in postterm pregnancies. We hypothesized that such pregnancies experience deteriorating oxidative balance and increasing oxidative stress. In this case-control study, our aim was to investigate the oxidative status in postterm pregnancies comparing with term by using total antioxidant status (TAS) measurement. METHODS Fifty pregnant women who were in their 41st gestational week (GW) and whose labor had not yet started were selected for the study group. Fifty subjects whose spontaneous labor onset and who delivered before their 41st GW were included for control group. Venous blood samples were obtained from each participant before the onset of labor. A premixed reagent was used to obtain serum TAS measurements from the blood samples. The Mann-Whitney test was used to compare the groups. RESULTS Age, gravity, and parity of the subjects were similar between the groups (p> 0.05). Body mass index (BMI) were statistically higher in postterm group (p =0.011). The median (interquartile range) TAS level was lower in the pregnancies beyond 41 weeks than term pregnancies [1.69 (0.12) mM vs 1.75 (0.20) mM, (p< 0.05)]. CONCLUSIONS A lower total antioxidant status in past days pregnancy suggests an association with decreased oxidative status compared to term. It can be speculated that pregnancies beyond 41 weeks are associated with decreased oxidative stress and this may be play a role in the etiology of the prolonged pregnancy.
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Affiliation(s)
- S Kaya
- Department of Obstetrics and Gynecology, Ataturk Education and Research Hospital, Ankara, Turkey
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Evaluation of oxidative stress and antioxidant status in diabetic and hypertensive women during labor. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2012; 2012:329743. [PMID: 22888397 PMCID: PMC3409560 DOI: 10.1155/2012/329743] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/05/2012] [Revised: 05/26/2012] [Accepted: 06/10/2012] [Indexed: 11/18/2022]
Abstract
Pregnancy in insulin-dependent diabetes mellitus is associated with a greater incidence of fetal abnormality. Animal studies suggested that increased free-radical production and antioxidant depletion may contribute to this risk. The objective of this work was to evaluate oxidative stress and antioxidant capacity in hypertensive, diabetics, and healthy control women during labor. Simultaneous determination of antioxidant enzymes activities, namely glutathione peroxidase (GSH-Px), glutathione reductase (GSH-red), superoxide dismutase (SOD), total antioxidant, and lipid peroxides measured as thiobarbituric acid-reactive substances (TBARS) levels, were carried out in maternal plasma during labor. Plasma GSH-Px activity was found to be significantly increased as it doubled in hypertensive, and diabetic women when compared with healthy control women (P < 0.05). In contrast, plasma SOD activity was significantly decreased in both groups when compared to the control group (P < 0.05). No significant differences were detected in GSH-Red activity between diabetic, hypertensive and control groups. Alterations in antioxidant enzyme activities were accompanied by a significant increase in the levels of plasma lipid peroxides in hypertensive and diabetic women during labor. Plasma levels of total antioxidants were significantly increased in diabetic women as compared with the control group. Based on our results, it may be concluded that enhanced generation of oxidative stress causes alteration of antioxidant capacity in diabetic and hypertensive women during labor. Alterations in antioxidant and prooxidant components may result in various complications including peroxidation of vital body molecules which may be regarded as an increased risk factor for pregnant women as well as the fetus.
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