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Xu C, Gong H, Niu L, Li T, Guo H, Hu C, Sun X, Li L, Liu W. Maternal exposure to dietary uranium causes oxidative stress and thyroid disruption in zebrafish offspring. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 265:115501. [PMID: 37774545 DOI: 10.1016/j.ecoenv.2023.115501] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/31/2023] [Accepted: 09/18/2023] [Indexed: 10/01/2023]
Abstract
The contamination of uranium in aquatic ecosystems has raised growing global concern. However, the understanding of its chronic effects on aquatic organisms is limited, particularly with regards to transgenerational toxicity. In this study, we evaluated the maternal transfer risk of uranium using zebrafish. Sexually mature female zebrafish were exposed to 2 and 20 ng/g of uranium-spiked food for 28 days. The induced bioconcentration, thyroid disruption, and oxidative stress in both the adults (F0) and their embryos (F1) were further investigated. Element analysis showed that uranium was present in both F0 and F1, with higher concentrations observed in F1, indicating significant maternal offloading to the offspring. Meanwhile, an increased malformation and decreased swim speed were observed in the F1. Thyroid hormone analysis revealed significant decreases in the levels of triiodothyronine (T3) in both the F0 adults and F1 embryos, but thyroxine (T4) was not significantly affected. Additionally, the activities of antioxidant defenses, including catalase (CAT) and superoxide dismutase (SOD), and the expression of glutathione (GSH) and malondialdehyde (MDA) were significantly altered in the F0 and F1 larvae at 120 hpf. The hypothalamic-pituitary-thyroid (HPT) axis, oxidative stress, and apoptosis-related gene transcription expression were also significantly affected in both generations. Taken together, these findings highlight the importance of considering maternal transfer in uranium risk assessments.
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Affiliation(s)
- Chao Xu
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Honghong Gong
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Lili Niu
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China.
| | - Tianyang Li
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Hangqin Guo
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Chenjian Hu
- Zhejiang Radiation Environment Monitoring Station, Hangzhou 310012, China.
| | - Xiaohui Sun
- Zhejiang Key Laboratory of Ecological and Environmental Monitoring, Forewarning and Quality Control, Zhejiang Ecological and Environmental Monitoring Center, Hangzhou 310012, China
| | - Ling Li
- College of Chemical Engineering, Huaqiao University, Xiamen 362021, Fujian, China
| | - Weiping Liu
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China; International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
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2
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N’goka V, Oyegue Liabagui SL, Sima Obiang C, Begouabe H, Nsonde Ntandou GF, Imboumy-Limoukou RK, Biteghe-Bi-Essone JC, Kumulungui BS, Lekana-Douki JB, Abena AA. Pentaclethra eetveldeana Leaves from Four Congo-Brazzaville Regions: Antioxidant Capacity, Anti-Inflammatory Activity and Proportional Accumulation of Phytochemicals. PLANTS (BASEL, SWITZERLAND) 2023; 12:3271. [PMID: 37765435 PMCID: PMC10535678 DOI: 10.3390/plants12183271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 07/16/2023] [Accepted: 07/18/2023] [Indexed: 09/29/2023]
Abstract
Oxidative stress and inflammation play a key role in the occurrence of neurodegenerative diseases. Traditionally, Pentaclethra eetveldeana leaves are used in dementia treatment. Therefore, this study aimed to evaluate the antioxidant and anti-inflammatory activities as well as the phytochemical composition of Pentaclethra eetveldeana leaves from four Congo-Brazzaville regions. The 1.2-diphenyl-1-picrylhydrazyl radical-scavenging, β-carotene bleaching and molybdenum reduction assays were used to assess the antioxidant activity. The protein denaturation and erythrocyte membrane stabilization tests were used to analyze the anti-inflammatory activity. Phytochemical screening, the quantification of polyphenols by spectrophotometry, as well as the determination of extraction yields were carried out. It was found that the extracts reduced molybdenum; furthermore, compared to ascorbic acid, they showed better antiradical activity and inhibited lipid peroxidation. Moreover, globally, the membrane-stabilizing power of the aqueous extracts was superior or comparable to diclofenac, while the same extracts were less effective for the inhibition of denaturation. All of the aqueous extracts contained polyphenols, saponins, alkaloids, anthraquinones, reducing sugar and cardiotonic glycosides. The total polyphenols, tannins and proanthocyanidins are produced proportionally from one region to another. Finally, the leaves from Brazzaville and Boundji contain flavonols, while those from Makoua and Owando contain flavones. Thus, Pentaclethra eetveldeana leaves contribute to traditional dementia treatment through their antioxidant and anti-inflammatory properties.
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Affiliation(s)
- Victor N’goka
- Laboratoire de Pharmacodynamie et de Physiopathologie Expérimentale (L2PE), Faculté des Sciences et Techniques, Université Marien Ngouabi (UMNG), Brazzaville BP 69, Congo
- Unité d’Evolution, Epidémiologie et Résistances Parasitaires (UNEEREP), Centre Interdisciplinaire et de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon
| | - Sandrine Lydie Oyegue Liabagui
- Unité d’Evolution, Epidémiologie et Résistances Parasitaires (UNEEREP), Centre Interdisciplinaire et de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon
- Département de Biologie, Faculté des Sciences, Université des Sciences et Techniques de Masuku (USTM), Franceville BP 876, Gabon
- Ecole Doctorale Régionale d’Afrique Centrale en Infectiologie Tropicale (ECODRAC), Université des Sciences et Techniques de Masuku (USTM), Franceville BP 876, Gabon
| | - Cédric Sima Obiang
- Laboratoire de Recherches en Biochimie (LAREBIO), Faculté des Sciences, Université des Sciences et Techniques de Masuku (USTM), Franceville BP 876, Gabon
| | - Herman Begouabe
- Laboratoire de Recherches en Biochimie (LAREBIO), Faculté des Sciences, Université des Sciences et Techniques de Masuku (USTM), Franceville BP 876, Gabon
| | - Gelase Fredy Nsonde Ntandou
- Laboratoire de Pharmacodynamie et de Physiopathologie Expérimentale (L2PE), Faculté des Sciences et Techniques, Université Marien Ngouabi (UMNG), Brazzaville BP 69, Congo
| | - Romeo Karl Imboumy-Limoukou
- Unité d’Evolution, Epidémiologie et Résistances Parasitaires (UNEEREP), Centre Interdisciplinaire et de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon
| | - Jean-Claude Biteghe-Bi-Essone
- Unité d’Evolution, Epidémiologie et Résistances Parasitaires (UNEEREP), Centre Interdisciplinaire et de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon
| | - Brice Serge Kumulungui
- Unité d’Evolution, Epidémiologie et Résistances Parasitaires (UNEEREP), Centre Interdisciplinaire et de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon
| | - Jean Bernard Lekana-Douki
- Unité d’Evolution, Epidémiologie et Résistances Parasitaires (UNEEREP), Centre Interdisciplinaire et de Recherches Médicales de Franceville (CIRMF), Franceville BP 769, Gabon
- Département de Parasitologie-Mycologie Médecine Tropicale, Faculté de Médecine, Université des Sciences de la Santé (USS), Libreville BP 4009, Gabon
| | - Ange Antoine Abena
- Laboratoire de Biochimie et de Pharmacologie (LBP), Faculté des Sciences de la Santé, Université Marien Ngouabi (UMNG), Brazzaville BP 69, Congo
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Impact of the number of retrieved oocytes on IVF outcomes: oocyte maturation, fertilization, embryo quality and implantation rate. ZYGOTE 2023; 31:91-96. [PMID: 36533391 DOI: 10.1017/s096719942200065x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The process of oocyte retrieval represents a key phase during the cycles of in vitro fertilization (IVF). It involves controlled ovarian stimulation to retrieve the highest number of oocytes possible. According to many previous studies, the higher the number of oocytes the higher the chances of obtaining embryos for multiple transfers. In this study, in total, 1987 patients were retrospectively reviewed to investigate the correlations between the number of retrieved oocytes and the subsequent IVF outcomes. Patients were divided into three groups according to the number of retrieved oocytes (Group 1: ≤5 oocytes; Group 2: 6-15 oocytes; Group 3: ≥15 oocytes). The results showed a significant negative correlation between oocyte number and maturation rate as well as fertilization rate. However, a significant positive correlation was found between oocyte number and the blastulation rate. The implantation rate after fresh embryo transfers was higher in group 2 (6-15 oocytes) compared with group 1 (≤5 oocytes). According to our findings, we conclude that oocyte numbers between 6 and 15 oocytes can result in the highest chances of positive IVF outcomes in terms of embryo quality and fresh embryo transfers with lower risks of ovarian hyperstimulation.
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Ngum JA, Tatang FJ, Toumeni MH, Nguengo SN, Simo USF, Mezajou CF, Kameni C, Ngongang NN, Tchinda MF, Dongho Dongmo FF, Akami M, Ngane Ngono AR, Tamgue O. An overview of natural products that modulate the expression of non-coding RNAs involved in oxidative stress and inflammation-associated disorders. Front Pharmacol 2023; 14:1144836. [PMID: 37168992 PMCID: PMC10165025 DOI: 10.3389/fphar.2023.1144836] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 03/24/2023] [Indexed: 05/13/2023] Open
Abstract
Oxidative stress is a state in which oxidants are produced in excess in the body's tissues and cells, resulting in a biological imbalance amid the generation of reactive oxygen and nitrogen species (RONS) from redox reactions. In case of insufficient antioxidants to balance, the immune system triggers signaling cascades to mount inflammatory responses. Oxidative stress can have deleterious effects on major macromolecules such as lipids, proteins, and nucleic acids, hence, Oxidative stress and inflammation are among the multiple factors contributing to the etiology of several disorders such as diabetes, cancers, and cardiovascular diseases. Non-coding RNAs (ncRNAs) which were once referred to as dark matter have been found to function as key regulators of gene expression through different mechanisms. They have dynamic roles in the onset and development of inflammatory and oxidative stress-related diseases, therefore, are potential targets for the control of those diseases. One way of controlling those diseases is through the use of natural products, a rich source of antioxidants that have drawn attention with several studies showing their involvement in combating chronic diseases given their enormous gains, low side effects, and toxicity. In this review, we highlighted the natural products that have been reported to target ncRNAs as mediators of their biological effects on oxidative stress and several inflammation-associated disorders. Those natural products include Baicalein, Tanshinone IIA, Geniposide, Carvacrol/Thymol, Triptolide, Oleacein, Curcumin, Resveratrol, Solarmargine, Allicin, aqueous extract or pulp of Açai, Quercetin, and Genistein. We also draw attention to some other compounds including Zanthoxylum bungeanum, Canna genus rhizome, Fuzi-ganjiang herb pair, Aronia melanocarpa, Peppermint, and Gingerol that are effective against oxidative stress and inflammation-related disorders, however, have no known effect on ncRNAs. Lastly, we touched on the many ncRNAs that were found to play a role in oxidative stress and inflammation-related disorders but have not yet been investigated as targets of a natural product. Shedding more light into these two last points of shadow will be of great interest in the valorization of natural compounds in the control and therapy of oxidative stress- and inflammation-associated disorders.
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El Idrissi O, Santini J, Bonnin M, Demolliens M, Aiello A, Gobert S, Pasqualini V, Ternengo S. Stress response to trace elements mixture of different embryo-larval stages of Paracentrotus lividus. MARINE POLLUTION BULLETIN 2022; 183:114092. [PMID: 36084613 DOI: 10.1016/j.marpolbul.2022.114092] [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: 07/23/2022] [Revised: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
This study investigated for the first time the oxidative biomarkers responses in all larval stages of sea urchin. The contamination effects were reproduced by using contaminated seawater to concentrations measured in the area adjacent to an old asbestos mine at factors of 5 and 10. The results suggested that the concentrations were not sufficiently high to induce a major oxidative stress. The biometric differences make this method a more sensitive approach for assessing the effects on sea urchin larvae. Measurements of specific activities of antioxidant enzymes at each stage suggested a high capacity of the larvae to respond to oxidative stress. This normal activity of the organism must be considered in future research. This work also highlighted the importance of spawners provenance in ecotoxicological studies. These data are essential to better understand the stress responses of sea urchin larvae and provide baseline information for later environmental assessment research.
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Affiliation(s)
- O El Idrissi
- Université de Corse Pasquale Paoli, UMR CNRS 6134 Sciences pour l'Environnement, 20250 Corte, France; Université de Corse Pasquale Paoli, UAR CNRS 3514 Plateforme marine Stella Mare, 20620 Biguglia, France; Université de Liège, Centre MARE, Focus, Laboratoire d'Océanologie, Sart-Tilman, B6c, 4000 Liège, Belgium.
| | - J Santini
- Université de Corse Pasquale Paoli, UMR CNRS 6134 Sciences pour l'Environnement, 20250 Corte, France
| | - M Bonnin
- Université de Corse Pasquale Paoli, UMR CNRS 6134 Sciences pour l'Environnement, 20250 Corte, France
| | - M Demolliens
- Université de Corse Pasquale Paoli, UAR CNRS 3514 Plateforme marine Stella Mare, 20620 Biguglia, France
| | - A Aiello
- Université de Corse Pasquale Paoli, UMR CNRS 6134 Sciences pour l'Environnement, 20250 Corte, France; Université de Corse Pasquale Paoli, UAR CNRS 3514 Plateforme marine Stella Mare, 20620 Biguglia, France
| | - S Gobert
- Université de Liège, Centre MARE, Focus, Laboratoire d'Océanologie, Sart-Tilman, B6c, 4000 Liège, Belgium; STAtion de REcherche Sous-marines et Océanographiques (STARESO), 20260 Calvi, France
| | - V Pasqualini
- Université de Corse Pasquale Paoli, UMR CNRS 6134 Sciences pour l'Environnement, 20250 Corte, France; Université de Corse Pasquale Paoli, UAR CNRS 3514 Plateforme marine Stella Mare, 20620 Biguglia, France
| | - S Ternengo
- Université de Corse Pasquale Paoli, UMR CNRS 6134 Sciences pour l'Environnement, 20250 Corte, France; Université de Corse Pasquale Paoli, UAR CNRS 3514 Plateforme marine Stella Mare, 20620 Biguglia, France
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A Method for Detecting Antioxidant Activity of Antioxidants by Utilizing Oxidative Damage of Pigment Protein. Appl Biochem Biotechnol 2022; 194:5522-5536. [DOI: 10.1007/s12010-022-04058-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/24/2022] [Indexed: 01/20/2023]
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Abidi C, Rtibi K, Boutahiri S, Tounsi H, Abdellaoui A, Wahabi S, Gressier B, Eto B, Sebai H. Dose-dependent Action of Zingiber officinale on Colonic Dysmotility and Ex Vivo Spontaneous Intestinal Contraction Modulation. Dose Response 2022; 20:15593258221127556. [PMID: 36132707 PMCID: PMC9483983 DOI: 10.1177/15593258221127556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 09/03/2022] [Indexed: 01/10/2023] Open
Abstract
Ginger (Zingiber officinale) rhizomes are commonly used in foods
and employed for many ailments including gastrointestinal disorders. Our main
objective was to evaluate the effect of Zingiber officinale
aqueous extract (ZOAE) on gastrointestinal (GI) physiological motility and
colonic dysmotility. Thereby, Wistar rats were given loperamide
(LP, 3 mg/kg, b.w.) and ZOAE (75, 150, and 300 mg/kg, b.w.) or yohimbine (YOH,
2 mg/kg, b.w.). ZOAE-action on intestinal secretion was assessed using Ussing
chamber technique and intestinal motility with isometric transducer. GI-transit
(GIT) and gastric emptying (GE) were evaluated with the charcoal meal test and
the red phenol methods. ZOAE-bioactive components were analyzed by liquid
chromatography-high resolution electrospray ionization mass spectrometry
(LC-HRESIMS). Constipation was induced with LP and the different indicators such
as stool composition, GIT, oxidative stress biological parameters, and colonic
mucosa histological alteration were performed. Anti-constipation effect of ZOAE
was confirmed on stool composition, GIT (53.42% to 85.57%), GE (55.47% to
98.88%), and re-established oxidative balance. ZOAE induces an amplitude
increase of spontaneous intestinal contraction with EC50 of 10.52 μg/mL. No
effect of ZOAE was observed on electrogenic transport of intestinal fluid. These
findings suggest that ZOAE-bioactive candidates might exert an anti-constipation
action and spontaneous intestinal contraction modulation.
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Affiliation(s)
- Chaima Abidi
- Laboratory of Functional Physiology and Valorization of Bio-Ressources-Higher Institute of Biotechnology of Beja, University of Jendouba, Beja, Tunisia
| | - Kais Rtibi
- Laboratory of Functional Physiology and Valorization of Bio-Ressources-Higher Institute of Biotechnology of Beja, University of Jendouba, Beja, Tunisia
| | - Salima Boutahiri
- Research Team of Chemistry of Bioactive Molecules and the Environment, Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay Ismaïl University, Meknes, Morocco
| | - Haifa Tounsi
- Laboratory of Human and Experimental Pathological Anatomy, Pasteur Institute of Tunis, Beja, Tunisia
| | - Afifa Abdellaoui
- Laboratory of Human and Experimental Pathological Anatomy, Pasteur Institute of Tunis, Beja, Tunisia
| | - Soumaya Wahabi
- Laboratory of Functional Physiology and Valorization of Bio-Ressources-Higher Institute of Biotechnology of Beja, University of Jendouba, Beja, Tunisia
| | - Bernard Gressier
- Laboratory of Pharmacology, Pharmacokinetics and Clinical Pharmacy, Faculty of Pharmacy, University of Lille, Lille, France
| | - Bruno Eto
- Laboratories TBC, Laboratory of Pharmacology, Pharmacokinetics and Clinical Pharmacy, Faculty of Pharmacy, University of Lille, Lille, France
| | - Hichem Sebai
- Laboratory of Functional Physiology and Valorization of Bio-Ressources-Higher Institute of Biotechnology of Beja, University of Jendouba, Beja, Tunisia
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Oxidative Stress in Calcific Aortic Valve Stenosis: Protective Role of Natural Antioxidants. Antioxidants (Basel) 2022; 11:antiox11061169. [PMID: 35740065 PMCID: PMC9219756 DOI: 10.3390/antiox11061169] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/09/2022] [Accepted: 06/10/2022] [Indexed: 01/01/2023] Open
Abstract
Calcific aortic valve stenosis (CAVS) is the most prevalent heart valvular disease worldwide and a slowly progressive disorder characterized by thickening of the aortic valve, calcification, and subsequent heart failure. Valvular calcification is an active cell regulation process in which valvular interstitial cells involve phenotypic conversion into osteoblasts/chondrocytes-like cells. The underlying pathophysiology is complicated, and there have been no pharmacological treatments for CAVS to date. Recent studies have suggested that an increase in oxidative stress is the major trigger of CAVS, and natural antioxidants could ameliorate the detrimental effects of reactive oxygen species in the pathogenesis of CAVS. It is imperative to review the current findings regarding the role of natural antioxidants in CAVS, as they can be a promising therapeutic approach for managing CAVS, a disorder currently without effective treatment. This review summarizes the current findings on molecular mechanisms associated with oxidative stress in the development of valvular calcification and discusses the protective roles of natural antioxidants in the prevention and treatment of CAVS.
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9
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The Relationships between Physical Activity, Exercise, and Sport on the Immune System. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19116777. [PMID: 35682358 PMCID: PMC9180823 DOI: 10.3390/ijerph19116777] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 05/27/2022] [Indexed: 02/05/2023]
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Voronkov A, Ivanova T. Significance of Lipid Fatty Acid Composition for Resistance to Winter Conditions in Asplenium scolopendrium. BIOLOGY 2022; 11:biology11040507. [PMID: 35453707 PMCID: PMC9024544 DOI: 10.3390/biology11040507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/11/2022] [Accepted: 03/22/2022] [Indexed: 11/16/2022]
Abstract
Simple Summary Plants growing at temperate and polar latitudes are exposed to cold stress. With climate change, different durations of low temperatures and sometimes frost are being increasingly observed in regions at low latitudes. This can cause especially great harm to agricultural crops, the mortality of which can pose a serious challenge to the food supply for the global population. One of the factors affecting plant resistance to low and negative temperatures is specific changes in the fatty acid (FA) composition of lipids. It should be noted that most of the crops studied in this regard are angiosperms. It is known that the FA composition of angiosperms has undergone significant evolutionary changes compared to that of nonflowering vascular plants. Studying the FA composition of various taxonomic groups can shed light on and reveal new mechanisms of plant resistance. Therefore, in this paper, we focused on the rare evergreen fern Asplenium scolopendrium, whose fronds can tolerate freezing. A number of specific features of its FA composition were discovered, which, in combination with other resistance mechanisms, determine its ability to grow in temperate climate zones and safely undergo wintering. Abstract Ferns are one of the oldest land plants. Among them, there are species that, during the course of evolution, have adapted to living in temperate climates and under winter conditions. Asplenium scolopendrium is one such species whose fronds are able to tolerate low subzero temperatures in winter. It is known that the resistance of ferns to freezing is associated with their prevention of desiccation via unique properties of the xylem and effective photoprotective mechanisms. In this work, the composition of A. scolopendrium lipid fatty acids (FAs) at different times of the year was studied by gas–liquid chromatography with mass spectrometry to determine their role in the resistance of this species to low temperatures. During the growing season, the polyunsaturated FA content increased significantly. This led to increases in the unsaturation and double-bond indices by winter. In addition, after emergence from snow, medium-chain FAs were found in the fronds. Thus, it can be speculated that the FA composition plays an important role in the adaptation of A. scolopendrium to growing conditions and preparation for successful wintering.
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Nassif RM, Chalhoub E, Chedid P, Hurtado-Nedelec M, Raya E, Dang PMC, Marie JC, El-Benna J. Metformin Inhibits ROS Production by Human M2 Macrophages via the Activation of AMPK. Biomedicines 2022; 10:biomedicines10020319. [PMID: 35203528 PMCID: PMC8869356 DOI: 10.3390/biomedicines10020319] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 01/11/2022] [Accepted: 01/24/2022] [Indexed: 11/16/2022] Open
Abstract
Metformin (1,1-dimethylbiguanide hydrochloride) is the most commonly used drug to treat type II diabetic patients. It is believed that this drug has several other beneficial effects, such as anti-inflammatory and anticancer effects. Here, we wanted to evaluate the effect of metformin on the production of reactive oxygen species (ROS) by human macrophages. Macrophages are generated in vivo from circulating monocytes depending on the local tissue environment. In vitro proinflammatory macrophages (M1) and anti-inflammatory macrophages (M2) can be generated by culturing monocytes in the presence of different cytokines, such as GM-CSF or M-CSF, respectively. We show that metformin selectively inhibited human monocyte differentiation into proinflammatory macrophages (M1) without inhibiting their differentiation into anti-inflammatory macrophages (M2). Moreover, we demonstrate that, in response to LPS, M2 macrophages produced ROS, which could be very harmful for nearby tissues, and metformin inhibited this process. Interestingly, metformin with LPS induced activation of the adenosine-monophosphate-activated protein kinase (AMPK) and pharmacological activation of AMPK by AICAR, a known AMPK activator, decreased ROS production, whereas the deletion of AMPK in mice dramatically enhanced ROS production in different types of immune cells. These results suggest that metformin exhibits anti-inflammatory effects by inhibiting the differentiation of human monocytes into M1 macrophages and by limiting ROS production by macrophages via the activation of AMPK.
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Affiliation(s)
- Rana M. Nassif
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Elias Chalhoub
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
| | - Pia Chedid
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
| | - Margarita Hurtado-Nedelec
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Elia Raya
- Faculty of Health Sciences, University of Balamand, P.O. Box 55251 Sin El Fil, Beirut 1100-2807, Lebanon; (R.M.N.); (E.C.); (P.C.); (E.R.)
| | - Pham My-Chan Dang
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Jean-Claude Marie
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
| | - Jamel El-Benna
- Centre de Recherche sur l’Inflammation (CRI), Laboratoire d’Excellence Inflamex, Faculté de Médecine Xavier Bichat, Université de Paris, INSERM-U1149, CNRS-ERL8252, 75018 Paris, France; (M.H.-N.); (P.M.-C.D.); (J.-C.M.)
- Correspondence: ; Tel.: +33-1-57-27-77-23; Fax: +33-1-57-27-74-61
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Mumtaz N, Akhtar MF, Saleem A, Riaz A. Harmful Consequences of Proton Pump Inhibitors on Male Fertility: An Evidence from Subchronic Toxicity Study of Esomeprazole and Lansoprazole in Wistar Rats. Int J Endocrinol 2022; 2022:4479261. [PMID: 35529080 PMCID: PMC9072022 DOI: 10.1155/2022/4479261] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 03/26/2022] [Accepted: 04/12/2022] [Indexed: 02/08/2023] Open
Abstract
Proton pump inhibitors (PPIs) are frequently prescribed as gastric acid-suppressing agents. Nevertheless, there is limited evidence supporting the risk of detrimental effects of PPIs on male fertility. The purpose of the current study was to evaluate the effect of subchronic use of proton pump inhibitors on male fertility. Seventy adult male Wistar rats were assigned into seven groups. The normal control group orally received solvent only. Groups 2, 3, and 4 were orally given esomeprazole while groups 5, 6, and 7 received lansoprazole at 2.5, 5, and 10 mg/kg/day, respectively. After 45 days of treatment, blood samples, epididymis, and testis were collected. Sperm count, motility, and morphology were determined. The level of hormones such as testosterone, follicle-stimulating hormone (FSH), and luteinizing hormone (LH) and oxidative status of testis tissue, such as superoxide dismutase, catalase, reduced glutathione, malondialdehyde (MDA), and nitric oxide (NO) were estimated. Results demonstrated a significant decline in sperm count, motility, morphology, testosterone, and catalase at 10 mg/kg/day and GSH at 2.5 mg/kg/day. A significant increase in FSH, LH, and MDA at 10 mg/kg/day and NO at 2.5 mg/kg/day was found as compared to the control group. The pathological alterations specifically dilation of Leydig cells, vacuolization, and degeneration of the seminiferous tubules were also evident. It is concluded that PPIs had caused male reproductive toxicity in Wistar rats due to altered levels of hormones such as testosterone, FSH, and LH, elevated levels of NO, and oxidative stress.
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Affiliation(s)
- Namra Mumtaz
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Lahore Campus, Lahore, Pakistan
| | - Muhammad Furqan Akhtar
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Lahore Campus, Lahore, Pakistan
| | - Ammara Saleem
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Amjad Riaz
- Department of Thriogenology, University of Veterinary and Animal Science, Lahore, Pakistan
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Pathological Role of Reactive Oxygen Species on Female Reproduction. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1391:201-220. [PMID: 36472824 DOI: 10.1007/978-3-031-12966-7_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Oxidative stress (OS), a clinical predicament characterized by a shift in homeostatic imbalance among prooxidant molecules embracing reactive oxygen species (ROS) and reactive nitrogen species (RNS), along with antioxidant defenses, has been established to play an indispensable part in the pathophysiology of subfertility in both human males and females. ROS are highly reactive oxidizing by-products generated during critical oxygen-consuming processes or aerobic metabolism. A healthy body system has its own course of action to maintain the equilibrium between prooxidants and antioxidants with an efficient defense system to fight against ROS. But when ROS production crosses its threshold, the disturbance in homeostatic balance results in OS. Besides their noxious effects, literature studies have depicted that controlled and adequate ROS concentrations exert physiologic functions, especially that gynecologic OS is an important mediator of conception in females. Yet the impact of ROS on oocytes and reproductive functions still needs a strong attestation for further analysis because the disruption in prooxidant and antioxidant balance leads to abrupt ROS generation initiating multiple reproductive diseases such as polycystic ovary syndrome (PCOS), endometriosis, and unexplained infertility in addition to other impediments in pregnancy such as recurrent pregnancy loss, spontaneous abortion, and preeclampsia. The current article elucidates the skeptical state of affairs created by ROS that influences female fertility.
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El-Hawary SS, Mubarek MM, Lotfy RA, Sleem AA, Okba MM. In vivo antidiabetic potential of standardized Gymnocarpos decandrus Forssk. Extract. J Diabetes Metab Disord 2021; 20:1129-1135. [PMID: 34900766 DOI: 10.1007/s40200-021-00829-9] [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: 03/20/2021] [Accepted: 06/03/2021] [Indexed: 11/26/2022]
Abstract
Background Gymnocarpos decandrus (Caryophyllaceae) is a well-known wild plant used as a food for grazing animals. Recently it showed potent antidiabetic potential beside its established anti-inflammatory, analgesic and diuretic activities. G. decandrus antidiabetic potential was reported through in-vitro models and resulted in promising α-amylase, α-glucosidase and antiviral Coxsackie B4 inhibitory activities; however no in-vivo studies were conducted. Purpose This study aims to examine Gymnocarpos decandrus ethanol extract (GDEE) safety and to evaluate its in vivo antidiabetic potential. Method Adult albino rats were injected intraperitoneally with alloxan to induce diabetes mellitus and the glucose level was measured after two and four weeks against metformin as a standard drug. Additionally, GDEE characterization and standardization were carried out. Results GDEE LD50 was up to 5.8 mg/kg and exhibited significant antidiabetic activity 77.17% comparable to the standard drug metformin. Its total phenolics, and flavonoids amounted 127.2 ± 0.23 and 85.5 ± 0.21 mg/g respectively. Vitexin was used as a marker compound for GDEE (140.70 mg/100 gm). Conclusion This study represents the sole in vivo scientific validation of G. decandrus recently documented in vitro antidiabetic potential.
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Affiliation(s)
- Seham S El-Hawary
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University Kasr El-Ainy, Cairo, 11562 Egypt
| | - Mahmoud M Mubarek
- Department of Medicinal and Aromatic Plants, Desert Research Center, Matariya, 11753 Egypt
| | - Rehab A Lotfy
- Department of Medicinal and Aromatic Plants, Desert Research Center, Matariya, 11753 Egypt
| | - Amany A Sleem
- Department of Pharmacology, National Research Centre, Dokki, Giza, 12622 Egypt
| | - Mona M Okba
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University Kasr El-Ainy, Cairo, 11562 Egypt
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15
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Neutrophils in Streptococcus suis Infection: From Host Defense to Pathology. Microorganisms 2021; 9:microorganisms9112392. [PMID: 34835517 PMCID: PMC8624082 DOI: 10.3390/microorganisms9112392] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/11/2021] [Accepted: 11/17/2021] [Indexed: 01/02/2023] Open
Abstract
Streptococcus suis is a swine pathogen and zoonotic agent responsible for economic losses to the porcine industry. Infected animals may develop meningitis, arthritis, endocarditis, sepsis and/or sudden death. The pathogenesis of the infection implies that bacteria breach mucosal host barriers and reach the bloodstream, where they escape immune-surveillance mechanisms and spread throughout the organism. The clinical manifestations are mainly the consequence of an exacerbated inflammation, defined by an exaggerated production of cytokines and recruitment of immune cells. Among them, neutrophils arrive first in contact with the pathogens to combat the infection. Neutrophils initiate and maintain inflammation, by producing cytokines and deploying their arsenal of antimicrobial mechanisms. Furthermore, neutrophilic leukocytosis characterizes S. suis infection, and lesions of infected subjects contain a large number of neutrophils. Therefore, this cell type may play a role in host defense and/or in the exacerbated inflammation. Nevertheless, a limited number of studies addressed the role or functions of neutrophils in the context of S. suis infection. In this review, we will explore the literature about S. suis and neutrophils, from their interaction at a cellular level, to the roles and behaviors of neutrophils in the infected host in vivo.
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Zahra KF, Lefter R, Ali A, Abdellah EC, Trus C, Ciobica A, Timofte D. The Involvement of the Oxidative Stress Status in Cancer Pathology: A Double View on the Role of the Antioxidants. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:9965916. [PMID: 34394838 PMCID: PMC8360750 DOI: 10.1155/2021/9965916] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 07/19/2021] [Indexed: 12/24/2022]
Abstract
Oxygen-free radicals, reactive oxygen species (ROS) or reactive nitrogen species (RNS), are known by their "double-sided" nature in biological systems. The beneficial effects of ROS involve physiological roles as weapons in the arsenal of the immune system (destroying bacteria within phagocytic cells) and role in programmed cell death (apoptosis). On the other hand, the redox imbalance in favor of the prooxidants results in an overproduction of the ROS/RNS leading to oxidative stress. This imbalance can, therefore, be related to oncogenic stimulation. High levels of ROS disrupt cellular processes by nonspecifically attacking proteins, lipids, and DNA. It appears that DNA damage is the key player in cancer initiation and the formation of 8-OH-G, a potential biomarker for carcinogenesis. The harmful effect of ROS is neutralized by an antioxidant protection treatment as they convert ROS into less reactive species. However, contradictory epidemiological results show that supplementation above physiological doses recommended for antioxidants and taken over a long period can lead to harmful effects and even increase the risk of cancer. Thus, we are describing here some of the latest updates on the involvement of oxidative stress in cancer pathology and a double view on the role of the antioxidants in this context and how this could be relevant in the management and pathology of cancer.
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Affiliation(s)
- Kamal Fatima Zahra
- Faculty of Sciences and Techniques, Laboratory of Physical Chemistry of Processes and Materials/Agri-Food and Health, Hassan First University, B.P. 539, 26000 Settat, Morocco
| | - Radu Lefter
- Center of Biomedical Research, Romanian Academy, 8th Carol I Avenue, 700506 Iasi, Romania
| | - Ahmad Ali
- Department of Life Sciences, University of Mumbai, Vidyanagari, Santacruz (East), Mumbai 400098, India
| | - Ech-Chahad Abdellah
- Faculty of Sciences and Techniques, Laboratory of Physical Chemistry of Processes and Materials, Hassan First University, B.P. 539, 26000 Settat, Morocco
| | - Constantin Trus
- Department of Morphological and Functional Sciences, Faculty of Medicine, Dunarea de Jos University, 800008 Galati, Romania
| | - Alin Ciobica
- Department of Biology, Faculty of Biology, Alexandru Ioan Cuza University, 11th Carol I Avenue, 700506 Iasi, Romania
| | - Daniel Timofte
- Faculty of Medicine, “Grigore T. Popa”, University of Medicine and Pharmacy, Strada Universitatii 16, 700115 Iasi, Romania
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Berby B, Bichara C, Rives-Feraille A, Jumeau F, Pizio PD, Sétif V, Sibert L, Dumont L, Rondanino C, Rives N. Oxidative Stress Is Associated with Telomere Interaction Impairment and Chromatin Condensation Defects in Spermatozoa of Infertile Males. Antioxidants (Basel) 2021; 10:antiox10040593. [PMID: 33921485 PMCID: PMC8069055 DOI: 10.3390/antiox10040593] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/29/2021] [Accepted: 04/08/2021] [Indexed: 02/07/2023] Open
Abstract
Telomere length can be influenced by reactive oxygen species (ROS) generated by lifestyle factors or environmental exposure. We sought to determine whether oxidative stress has an impact on sperm nuclear alterations, especially on chromatin organization and telomere interactions in the spermatozoa of infertile males. We performed an observational and prospective study including fifty-two males, allocated in the "case group" (30 infertile males presenting conventional semen parameter alterations) and the "control group" (22 males with normal conventional semen parameters). ROS detection was determined on spermatozoa using CellROX© probes. Sperm nuclear damage was assessed using quantitative fluorescence in situ hybridization (Q-FISH) for relative telomere length and telomere number, aniline blue staining for chromatin condensation, terminal deoxynucleotidyl transferase dUTP nick-end labeling for DNA fragmentation, and FISH for aneuploidy and 8-hydroxy-2'-deoxyguanosine immunostaining for oxidative DNA damages. Infertile males had significantly increased levels of cytoplasmic ROS and chromatin condensation defects as well as a higher mean number of telomere signals per spermatozoon in comparison with controls. In addition, the mean number of sperm telomere signals were positively correlated with the percentage of spermatozoa with chromatin condensation defect. In infertile males with conventional semen parameter alterations, oxidative stress is associated with telomere interaction impairment and chromatin condensation defects.
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Affiliation(s)
- Benoit Berby
- Biology of Reproduction—CECOS Laboratory, Rouen University Hospital, Normandie University, UNIROUEN, EA 4308 “Gametogenesis and Gamete Quality”, F 76000 Rouen, France; (B.B.); (C.B.); (A.R.-F.); (F.J.); (P.D.P.); (V.S.)
| | - Cynthia Bichara
- Biology of Reproduction—CECOS Laboratory, Rouen University Hospital, Normandie University, UNIROUEN, EA 4308 “Gametogenesis and Gamete Quality”, F 76000 Rouen, France; (B.B.); (C.B.); (A.R.-F.); (F.J.); (P.D.P.); (V.S.)
| | - Aurélie Rives-Feraille
- Biology of Reproduction—CECOS Laboratory, Rouen University Hospital, Normandie University, UNIROUEN, EA 4308 “Gametogenesis and Gamete Quality”, F 76000 Rouen, France; (B.B.); (C.B.); (A.R.-F.); (F.J.); (P.D.P.); (V.S.)
| | - Fanny Jumeau
- Biology of Reproduction—CECOS Laboratory, Rouen University Hospital, Normandie University, UNIROUEN, EA 4308 “Gametogenesis and Gamete Quality”, F 76000 Rouen, France; (B.B.); (C.B.); (A.R.-F.); (F.J.); (P.D.P.); (V.S.)
| | - Pierre Di Pizio
- Biology of Reproduction—CECOS Laboratory, Rouen University Hospital, Normandie University, UNIROUEN, EA 4308 “Gametogenesis and Gamete Quality”, F 76000 Rouen, France; (B.B.); (C.B.); (A.R.-F.); (F.J.); (P.D.P.); (V.S.)
| | - Véronique Sétif
- Biology of Reproduction—CECOS Laboratory, Rouen University Hospital, Normandie University, UNIROUEN, EA 4308 “Gametogenesis and Gamete Quality”, F 76000 Rouen, France; (B.B.); (C.B.); (A.R.-F.); (F.J.); (P.D.P.); (V.S.)
| | - Louis Sibert
- Department of Urology—Andrology, Rouen University Hospital, Normandie University, UNIROUEN, EA 4308 “Gametogenesis and Gamete Quality”, F 76000 Rouen, France;
| | - Ludovic Dumont
- Normandie University, UNIROUEN, EA 4308 “Gametogenesis and Gamete Quality”, F 76000 Rouen, France; (L.D.); (C.R.)
| | - Chistine Rondanino
- Normandie University, UNIROUEN, EA 4308 “Gametogenesis and Gamete Quality”, F 76000 Rouen, France; (L.D.); (C.R.)
| | - Nathalie Rives
- Biology of Reproduction—CECOS Laboratory, Rouen University Hospital, Normandie University, UNIROUEN, EA 4308 “Gametogenesis and Gamete Quality”, F 76000 Rouen, France; (B.B.); (C.B.); (A.R.-F.); (F.J.); (P.D.P.); (V.S.)
- Correspondence: ; Tel.: +33-2-3288-8225
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Singh BG, Kunwar A. Redox reactions of organoselenium compounds: Implication in their biological activity. Free Radic Res 2021; 55:641-654. [PMID: 33555213 DOI: 10.1080/10715762.2021.1882678] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Antioxidant activity of organoselenium compounds belonging to different classes i.e. functionalized aliphatic, aromatic and cyclic selenoethers, are compared on the basis of their ability to scavenge reactive oxygen species like hydroxyl and peroxyl radicals and to exhibit glutathione peroxidase (GPx) like catalytic activity. The comparative analysis has revealed that the antioxidant activity of the organoselenium compounds show direct correlation with the energy of the highest occupied molecular orbital (HOMO) and neighboring group participation that stabilizes the reaction intermediate. Finally, structural features responsible for improving the rate of reaction of organoselenium compounds with free radical/molecular oxidants have been discussed on the basis of the compounds screened at our institute.
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Affiliation(s)
- Beena G Singh
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Mumbai, India
| | - Amit Kunwar
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Mumbai, India.,Homi Bhabha National Institute, Mumbai, India
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Sivager G, Calvez L, Bruyere S, Boisne-Noc R, Brat P, Gros O, Ollitrault P, Morillon R. Specific Physiological and Anatomical Traits Associated With Polyploidy and Better Detoxification Processes Contribute to Improved Huanglongbing Tolerance of the Persian Lime Compared With the Mexican Lime. FRONTIERS IN PLANT SCIENCE 2021; 12:685679. [PMID: 34512684 PMCID: PMC8427660 DOI: 10.3389/fpls.2021.685679] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 06/09/2021] [Indexed: 05/13/2023]
Abstract
Huanglongbing (HLB) is presently a major threat to the citrus industry. Because of this disease, millions of trees are currently dying worldwide. The putative causal agent is a motile bacteria belonging to Candidatus Liberibacter spp., which is transmitted by psyllids. The bacteria is responsible for the synthesis of callose at the phloem sieve plate, leading to the obstruction of the pores that provide connections between adjacent sieve elements, thus limiting the symplastic transport of the sugars and starches synthesized in leaves to the other plant organs. The Persian triploid lime (Citrus latifolia) is one of the most HLB-tolerant citrus varieties, but the determinants associated with the tolerance are still unknown. HLB-infected diploid Mexican lime (Citrus aurantiifolia) and Persian lime were investigated. The leaf petiole was analyzed using scanning electron microscopy (SEM) to observe callose deposition at the phloem sieve plate. Leaf starch contents and detoxification enzyme activities were investigated. In the field, Persian lime leaves present more limited symptoms due to HLB than the Mexican lime leaves do. Photosynthesis, stomatal conductance, and transpiration decreased compared with control plants, but values remained greater in the Persian than in the Mexican lime. Analysis of the petiole sieve plate in control petiole samples showed that pores were approximately 1.8-fold larger in the Persian than in the Mexican lime. SEM analyses of petiole samples of symptomatic leaves showed the important deposition of callose into pores of Mexican and Persian limes, whereas biochemical analyses revealed better detoxification in Persian limes than in Mexican limes. Moreover, SEM analyses of infected petiole samples of asymptomatic leaves showed much larger callose depositions into the Mexican lime pores than in the Persian lime pores, whereas biochemical traits revealed much better behavior in Persian limes than in Mexican limes. Our results reveal that polyploids present specific behaviors associated with important physiological and biochemical determinants that may explain the better tolerance of the Persian lime against HLB compared with the Mexican lime.
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Affiliation(s)
- Gary Sivager
- CIRAD, UMR AGAP Institut, Equipe SEAPAG, Petit-Bourg, Guadeloupe, French West Indies—UMR AGAP Institut, Univ. Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Leny Calvez
- CIRAD, UMR AGAP Institut, Equipe SEAPAG, Petit-Bourg, Guadeloupe, French West Indies—UMR AGAP Institut, Univ. Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Saturnin Bruyere
- CIRAD, UMR AGAP Institut, Equipe SEAPAG, Petit-Bourg, Guadeloupe, French West Indies—UMR AGAP Institut, Univ. Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Rosiane Boisne-Noc
- CIRAD, UMR AGAP Institut, Equipe SEAPAG, Petit-Bourg, Guadeloupe, French West Indies—UMR AGAP Institut, Univ. Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Pierre Brat
- CIRAD UMR Qualisud Dpt PERSYST-Qualisud, Univ. Montpellier, Avignon Université, CIRAD, Institut Agro, IRD, Université de La Réunion, Montpellier, France
| | - Olivier Gros
- C3MAG, UFR des Sciences Exactes et Naturelles, Université des Antilles, Pointe-à-Pitre, Guadeloupe
| | - Patrick Ollitrault
- CIRAD, UMR AGAP Institut, Equipe SEAPAG, Petit-Bourg, Guadeloupe, French West Indies—UMR AGAP Institut, Univ. Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Raphaël Morillon
- CIRAD, UMR AGAP Institut, Equipe SEAPAG, Petit-Bourg, Guadeloupe, French West Indies—UMR AGAP Institut, Univ. Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
- *Correspondence: Raphaël Morillon,
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Lee JH, Yoo YM, Lee B, Jeong S, Tran DN, Jeung EB. Melatonin mitigates the adverse effect of hypoxia during myocardial differentiation in mouse embryonic stem cells. J Vet Sci 2021; 22:e54. [PMID: 34313039 PMCID: PMC8318788 DOI: 10.4142/jvs.2021.22.e54] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/07/2021] [Accepted: 06/20/2021] [Indexed: 01/26/2023] Open
Abstract
Background Hypoxia causes oxidative stress and affects cardiovascular function and the programming of cardiovascular disease. Melatonin promotes antioxidant enzymes such as superoxide dismutase, glutathione reductase, glutathione peroxidase, and catalase. Objectives This study aims to investigate the correlation between melatonin and hypoxia induction in cardiomyocytes differentiation. Methods Mouse embryonic stem cells (mESCs) were induced to myocardial differentiation. To demonstrate the influence of melatonin under hypoxia, mESC was pretreated with melatonin and then cultured in hypoxic condition. The cardiac beating ratio of the mESC-derived cardiomyocytes, mRNA and protein expression levels were investigated. Results Under hypoxic condition, the mRNA expression of cardiac-lineage markers (Brachyury, Tbx20, and cTn1) and melatonin receptor (Mtnr1a) was reduced. The mRNA expression of cTn1 and the beating ratio of mESCs increased when melatonin was treated simultaneously with hypoxia, compared to when only exposed to hypoxia. Hypoxia-inducible factor (HIF)-1α protein decreased with melatonin treatment under hypoxia, and Mtnr1a mRNA expression increased. When the cells were exposed to hypoxia with melatonin treatment, the protein expressions of phospho-extracellular signal-related kinase (p-ERK) and Bcl-2-associated X proteins (Bax) decreased, however, the levels of phospho-protein kinase B (p-Akt), phosphatidylinositol 3-kinase (PI3K), B-cell lymphoma 2 (Bcl-2) proteins, and antioxidant enzymes including Cu/Zn-SOD, Mn-SOD, and catalase were increased. Competitive melatonin receptor antagonist luzindole blocked the melatonin-induced effects. Conclusions This study demonstrates that hypoxia inhibits cardiomyocytes differentiation and melatonin partially mitigates the adverse effect of hypoxia in myocardial differentiation by regulating apoptosis and oxidative stress through the p-AKT and PI3K pathway.
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Affiliation(s)
- Jae Hwan Lee
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - Yeong Min Yoo
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - Bonn Lee
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - SunHwa Jeong
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - Dinh Nam Tran
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea
| | - Eui Bae Jeung
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea.
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Hlaing SMM, Lou J, Cheng J, Xun X, Li M, Lu W, Hu X, Bao Z. Tissue-Biased and Species-Specific Regulation of Glutathione Peroxidase ( GPx) Genes in Scallops Exposed to Toxic Dinoflagellates. Toxins (Basel) 2020; 13:toxins13010021. [PMID: 33396547 PMCID: PMC7824116 DOI: 10.3390/toxins13010021] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/20/2020] [Accepted: 12/28/2020] [Indexed: 01/08/2023] Open
Abstract
Marine bivalves could accumulate paralytic shellfish toxins (PSTs) produced by toxic microalgae, which might induce oxidative stress. Glutathione peroxidases (GPxs) are key enzymes functioning in the antioxidant defense, whereas our understanding of their roles in PST challenge in bivalves is limited. Herein, through genome-wide screening, we identified nine (CfGPx) and eight (PyGPx) GPx genes in Zhikong scallop (Chlamys farreri) and Yesso scallop (Patinopecten yessoensis), respectively, and revealed the expansion of GPx3 sub-family in both species. RNA-Seq analysis revealed high expression of scallop GPx3s after D stage larva during early development, and in adult hepatopancreas. However, in scallops exposed to PST-producing dinoflagellates, no GPx was significantly induced in the hepatopancreas. In scallop kidneys where PSTs were transformed to higher toxic analogs, most CfGPxs were up-regulated, with CfGPx3s being acutely and chronically induced by Alexandrium minutum and A. catenella exposure, respectively, but only one PyGPx from GPx3 subfamily was up-regulated by A. catenella exposure. Our results suggest the function of scallop GPxs in protecting kidneys against the oxidative stresses by PST accumulation or transformation. The tissue-, species-, and toxin-dependent expression pattern of scallop GPxs also implied their functional diversity in response to toxin exposure.
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Affiliation(s)
- Sein Moh Moh Hlaing
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Ministry of Education, 5 Yushan Road, Qingdao 266003, China; (S.M.M.H.); (J.L.); (J.C.); (X.X.); (M.L.); (Z.B.)
| | - Jiarun Lou
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Ministry of Education, 5 Yushan Road, Qingdao 266003, China; (S.M.M.H.); (J.L.); (J.C.); (X.X.); (M.L.); (Z.B.)
| | - Jie Cheng
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Ministry of Education, 5 Yushan Road, Qingdao 266003, China; (S.M.M.H.); (J.L.); (J.C.); (X.X.); (M.L.); (Z.B.)
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), 1 Wenhai Road, Qingdao 266237, China
| | - Xiaogang Xun
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Ministry of Education, 5 Yushan Road, Qingdao 266003, China; (S.M.M.H.); (J.L.); (J.C.); (X.X.); (M.L.); (Z.B.)
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), 1 Wenhai Road, Qingdao 266237, China
| | - Moli Li
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Ministry of Education, 5 Yushan Road, Qingdao 266003, China; (S.M.M.H.); (J.L.); (J.C.); (X.X.); (M.L.); (Z.B.)
| | - Wei Lu
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Ministry of Education, 5 Yushan Road, Qingdao 266003, China; (S.M.M.H.); (J.L.); (J.C.); (X.X.); (M.L.); (Z.B.)
- Correspondence: (W.L.); (X.H.); Tel.: +86-532-82031802 (W.L.); +86-532-82031970 (X.H.)
| | - Xiaoli Hu
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Ministry of Education, 5 Yushan Road, Qingdao 266003, China; (S.M.M.H.); (J.L.); (J.C.); (X.X.); (M.L.); (Z.B.)
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), 1 Wenhai Road, Qingdao 266237, China
- Correspondence: (W.L.); (X.H.); Tel.: +86-532-82031802 (W.L.); +86-532-82031970 (X.H.)
| | - Zhenmin Bao
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Ministry of Education, 5 Yushan Road, Qingdao 266003, China; (S.M.M.H.); (J.L.); (J.C.); (X.X.); (M.L.); (Z.B.)
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), 1 Wenhai Road, Qingdao 266237, China
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Potential Therapeutic Role of Phytochemicals to Mitigate Mitochondrial Dysfunctions in Alzheimer's Disease. Antioxidants (Basel) 2020; 10:antiox10010023. [PMID: 33379372 PMCID: PMC7823298 DOI: 10.3390/antiox10010023] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 12/15/2022] Open
Abstract
Alzheimer’s disease (AD) is a progressive neurodegenerative disorder characterized by a decline in cognitive function and neuronal damage. Although the precise pathobiology of AD remains elusive, accumulating evidence suggests that mitochondrial dysfunction is one of the underlying causes of AD. Mutations in mitochondrial or nuclear DNA that encode mitochondrial components may cause mitochondrial dysfunction. In particular, the dysfunction of electron transport chain complexes, along with the interactions of mitochondrial pathological proteins are associated with mitochondrial dysfunction in AD. Mitochondrial dysfunction causes an imbalance in the production of reactive oxygen species, leading to oxidative stress (OS) and vice versa. Neuroinflammation is another potential contributory factor that induces mitochondrial dysfunction. Phytochemicals or other natural compounds have the potential to scavenge oxygen free radicals and enhance cellular antioxidant defense systems, thereby protecting against OS-mediated cellular damage. Phytochemicals can also modulate other cellular processes, including autophagy and mitochondrial biogenesis. Therefore, pharmacological intervention via neuroprotective phytochemicals can be a potential strategy to combat mitochondrial dysfunction as well as AD. This review focuses on the role of phytochemicals in mitigating mitochondrial dysfunction in the pathogenesis of AD.
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Toualbi LA, Adnane M, Abderrezak K, Ballouti W, Arab M, Toualbi C, Chader H, Tahae R, Seba A. Oxidative stress accelerates the carotid atherosclerosis process in patients with chronic kidney disease. Arch Med Sci Atheroscler Dis 2020; 5:e245-e254. [PMID: 33305063 PMCID: PMC7717441 DOI: 10.5114/amsad.2020.98945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 08/15/2020] [Indexed: 02/02/2023] Open
Abstract
INTRODUCTION The atherosclerosis process is highly accelerated in patients with chronic kidney disease (CKD). Oxidative stress is considered as one of the pro-atherogenic factors involved in accelerating the atherosclerosis process of the carotid artery. The aim of the present study was to determine the relationship between oxidative stress markers and the progression of carotid atherosclerosis in CKD patients. MATERIAL AND METHODS The study was conducted on 162 patients with CKD and 40 controls, and the disease stage was scored between 2 and 5D. Blood samples were taken and advanced oxidative protein product, myeloperoxidases, malondialdehyde, nitric oxide, glutathione, and oxidised low-density lipoprotein were measured. Furthermore, we studied the correlations between these biomarkers and clinical and para-clinical cardiovascular complications. RESULTS The average age of patients was 56.5 years. The oxidative stress markers average ± SD levels in CKD groups compared to the control were as follows: advanced oxidation protein product (61.89 ±1.4 vs. 26.65 ±1.05 µmol/l), myeloperoxidase (59.89 ±1.98 vs. 38.45 ±1.98 UI/ml), malondialdehyde (6.1 ±0.12 vs. 3.26 ±0.03 µmol/l), nitric oxide (65.82 ±1.06 vs. 52.19 ±2.1 µmol/l), glutathione (52.21 ±1.3 vs. 89.4 ±2.6 IU/ml), and oxLDL (15.57 ±1.07 vs. 1.72 ±0.82 µmol/l). While the glutathione level decreased significantly in advanced CKD stage (p < 0.05), the concentrations of all the other biomarkers increased significantly in accordance with CKD score (p < 0.05). CONCLUSIONS Cardiovascular diseases, mainly atherosclerosis, can be diagnosed indirectly by measuring oxidative stress markers. Furthermore, theses markers can be used to predict the progression of CKD, for better management of the disease.
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Affiliation(s)
| | - Mounir Adnane
- Department of Biomedicine, Institute of Veterinary Sciences, University of Tiaret,
Tiaret, Algeria
| | - Khelfi Abderrezak
- Departement of Toxicology, Hospital University of Bab el oued, Algiers, Algeria
| | - Wafa Ballouti
- Department of Biochemistry, Hospital of Hussein Dey, Algiers, Algeria
| | - Medina Arab
- Department of Biochemestry, Hospital University of Mustapha Bacha, Algiers, Algeria
| | - Chahine Toualbi
- Department of Orthopedic Surgery, Hospital of Bejaia, Bejaia Algeria
| | - Henni Chader
- Department of Pharmacology, Pastor Institute, Algiers, Algeria
| | - Ryne Tahae
- Department of Nephrology, Hospital University of Hussein Dey, Algiers, Algeria
| | - Atmane Seba
- Department of Nephrology, Hospital University of Tizi ouzou, Tizi Ouzou, Algeria
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Ofosu FK, Elahi F, Daliri EBM, Yeon SJ, Ham HJ, Kim JH, Han SI, Oh DH. Flavonoids in Decorticated Sorghum Grains Exert Antioxidant, Antidiabetic and Antiobesity Activities. Molecules 2020; 25:E2854. [PMID: 32575757 PMCID: PMC7355972 DOI: 10.3390/molecules25122854] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 06/17/2020] [Accepted: 06/18/2020] [Indexed: 01/11/2023] Open
Abstract
Eight new genotypes of brown sorghum grain were decorticated and assessed for their antioxidant, antidiabetic and antiobesity activities in vitro. The DPPH and ABTS radical scavenging assays of the soluble fractions were evaluated, followed by digestive enzymes and advanced glycation end-products (AGEs) formation inhibition assays. DSOR 33 and DSOR 11 exhibited the highest DPPH (IC50 = 236.0 ± 1.98 µg/mL and 292.05 ± 2.19 µg/mL, respectively) and ABTS radical scavenging activity (IC50 = 302.50 ± 1.84 µg/mL and 317.05 ± 1.06 µg/mL, respectively). DSOR 17, DSOR 11 and DSOR 33 showed significantly higher inhibitory activity of both α-glucosidase and α-amylase (IC50 = 31.86, 35.10 and 49.40 µg/mL; and 15.87, 22.79 and 37.66 µg/mL, respectively) compared to acarbose (IC50 = 59.34 and 27.73 µg/mL, respectively). Similarly, DSOR 33, DSOR 11 and DSOR 17 showed potent inhibition of both AGEs and lipase with IC50 values of 18.25, 19.03 and 38.70 µg/mL; and 5.01, 5.09 and 4.94 µg/mL, respectively, compared to aminoguanidine (52.30 µg/mL) and orlistat (5.82 µg/mL). Flavonoids were the predominant compounds identified, with flavones being the major subclass in these three extracts. Our findings suggest that decorticated sorghum grains contain substantial amounts of flavonoids and could be promising candidates for the prevention and treatment of diabetes and obesity.
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Affiliation(s)
- Fred Kwame Ofosu
- Department of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, Gangwon-do 24341, Korea; (F.K.O.); (F.E.); (E.B.-M.D.)
| | - Fazle Elahi
- Department of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, Gangwon-do 24341, Korea; (F.K.O.); (F.E.); (E.B.-M.D.)
| | - Eric Banan-Mwine Daliri
- Department of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, Gangwon-do 24341, Korea; (F.K.O.); (F.E.); (E.B.-M.D.)
| | - Su-Jung Yeon
- Department of Food Science and Biotechnology, Kangwon Institute of Inclusive Technology, Kangwon National University; Chuncheon, Gangwon-do 24341, Korea;
| | - Hun Ju Ham
- Department of Biological Environment, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, Gangwon-do 24341, Korea;
| | - Joong-Hark Kim
- Department of Medical Biotechnology, College of Biomedical Sciences, Kangwon National University, Chuncheon, Gangwon-do 24341, Korea;
| | - Sang-Ik Han
- Department of Southern Area Crop Science, NICS Upland Crop Breeding Res. Div., 181, Hyeoksin-ro, Iseo-myeon, Wanju-Gun, Jeollabuk-do 55365, Korea;
| | - Deog-Hwan Oh
- Department of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, Gangwon-do 24341, Korea; (F.K.O.); (F.E.); (E.B.-M.D.)
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Vahabzadeh Z, Molodi M, Nikkho B, Saghebjoo M, Saedmocheshi S, Zamani F, Roshani Y, Babanzadeh S. Aerobic training and hydroalcoholic extracts of green tea improve pro-oxidant-antioxidant balance and histopathological score in the N-methyl-N-nitrosourea-induced prostate cancer model of rat. EXCLI JOURNAL 2020; 19:762-772. [PMID: 32636729 PMCID: PMC7332805 DOI: 10.17179/excli2019-2069] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 06/05/2020] [Indexed: 11/12/2022]
Abstract
Green tea is a main resource for catechins. Catechins as antioxidant compounds reduce the production of reactive oxygen species and they have a protective role in the development of cancer. As well as, aerobic exercise change free radicals with two contradictory mechanisms. Aerobic training promotes excessive production of free radicals resulting in oxidative stress. In contrast, it increases the total antioxidant capacity. In this study, effect of aerobic training and hydroalcoholic extract of green tea (HEGT) on the pro-oxidant-antioxidant balance (PAB), prostate-specific antigen (PSA) and histopathological score of cancerous tissue in the N-methyl-N-nitrosourea-induced prostate cancer was investigated. A rat model of prostate cancer was induced by hormonal change and N-Nitroso-N-methylurea (NMU). HEGT 0.1 % and 45 min of aerobic exercise in 5 days a week for eight weeks were scheduled. The presence of major catechins was approved using GC-MS. Histological study, PAB and PSA levels were used to monitor the preventive role of treatments. The prostate weights of cancerous rats were significantly higher than healthy controls (P<0.05). The PAB was only significantly higher in cancerous rats and cancerous rats receiving aerobic exercise (P<0.05). The mean of histological score of cancerous tissue was reduced in rat receiving HEGT and both HEGT and aerobic exercise. The amounts of PSA level did not significantly differ between the groups of this study (P>0.05). Our results provided laboratory and histological documentation for the preventive role of green tea extract in developing prostate cancer via its potential to re-establish the pro-oxidant-antioxidant balance.
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Affiliation(s)
- Zakaria Vahabzadeh
- Liver & Digestive Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran.,Department of Clinical Biochemistry, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Mohammadraman Molodi
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran.,Department of Physiology and Pharmacology, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Bahram Nikkho
- Department of Pathology and Clinical Laboratory Sciences, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Marziyeh Saghebjoo
- Department of Exercise Physiology, Faculty of Sports Sciences, University of Birjand, Birjand, Iran
| | - Saber Saedmocheshi
- Department of Exercise Physiology, Faculty of Sports Sciences, University of Birjand, Birjand, Iran
| | - Fatemeh Zamani
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Yazdan Roshani
- Department of Clinical Biochemistry, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Sina Babanzadeh
- Department of Clinical Biochemistry, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
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Coloured Rice Phenolic Extracts Increase Expression of Genes Associated with Insulin Secretion in Rat Pancreatic Insulinoma β-cells. Int J Mol Sci 2020; 21:ijms21093314. [PMID: 32392844 PMCID: PMC7246603 DOI: 10.3390/ijms21093314] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/23/2020] [Accepted: 05/06/2020] [Indexed: 12/11/2022] Open
Abstract
Glucose-induced oxidative stress is associated with the overproduction of reactive oxygen species (ROS), which may dysregulate the expression of genes controlling insulin secretion leading to β-cell dysfunction, a hallmark of type 2 diabetes mellitus (T2DM). This study investigated the impact of coloured rice phenolic extracts (CRPEs) on the expression of key genes associated with β-cell function in pancreatic β-cells (INS-1E). These genes included glucose transporter 2 (Glut2), silent mating type information regulation 2 homolog 1 (Sirt1), mitochondrial transcription factor A (Tfam), pancreatic/duodenal homeobox protein 1 (Pdx-1) and insulin 1 (Ins1). INS-1E cells were cultured in high glucose (25 mM) to induce glucotoxic stress conditions (HGSC) and in normal glucose conditions (NGC-11.1 mM) to represent normal β-cell function. Cells were treated with CRPEs derived from two coloured rice cultivars, Purple and Yunlu29-red varieties at concentrations ranged from 50 to 250 µg/mL. CRPEs upregulated the expression of Glut2, Sirt1 and Pdx-1 significantly at 250 µg/mL under HGSC. CRPEs from both cultivars also upregulated Glut2, Sirt1, Tfam, Pdx-1 and Ins1 markedly at 250 µg/mL under NGC with Yunlu29 having the greatest effect. These data suggest that CRPEs may reduce β-cell dysfunction in T2DM by upregulating the expression of genes involved in insulin secretion pathways.
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Abstract
The process of embryonic development is crucial and radically influences preimplantation embryo competence. It involves oocyte maturation, fertilization, cell division and blastulation and is characterized by different key phases that have major influences on embryo quality. Each stage of the process of preimplantation embryonic development is led by important signalling pathways that include very many regulatory molecules, such as primary and secondary messengers. Many studies, both in vivo and in vitro, have shown the importance of the contribution of reactive oxygen species (ROS) as important second messengers in embryo development. ROS may originate from embryo metabolism and/or oocyte/embryo surroundings, and their effect on embryonic development is highly variable, depending on the needs of the embryo at each stage of development and on their environment (in vivo or under in vitro culture conditions). Other studies have also shown the deleterious effects of ROS in embryo development, when cellular tissue production overwhelms antioxidant production, leading to oxidative stress. This stress is known to be the cause of many cellular alterations, such as protein, lipid, and DNA damage. Considering that the same ROS level can have a deleterious effect on the fertilizing oocyte or embryo at certain stages, and a positive effect at another stage of the development process, further studies need to be carried out to determine the rate of ROS that benefits the embryo and from what rate it starts to be harmful, this measured at each key phase of embryonic development.
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Ameur FZ, Mehedi N, Soler Rivas C, Gonzalez A, Kheroua O, Saidi D. Effect of tartrazine on digestive enzymatic activities: in vivo and in vitro studies. Toxicol Res 2020; 36:159-166. [PMID: 32257928 PMCID: PMC7099100 DOI: 10.1007/s43188-019-00023-3] [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: 06/17/2019] [Revised: 07/27/2019] [Accepted: 08/22/2019] [Indexed: 01/21/2023] Open
Abstract
Tartrazine (E102) is a synthetic food coloring, which belongs to the class of mono azo dyes and is known to cause numerous health problems. The current research aimed to evaluate the effect of this food dye on the enzymatic activity of amylase, lipase and proteases after a subchronic ingestion in Swiss mice. Additionally, an in vitro digestion model was used to highlight the relationship between the probable toxicity of tartrazine and the nature of the food ingested. The results show that there were no adverse effects of tartrazine on the body weight gain, and on amylase or lipase activities. However, in the high dose of tartrazine (0.05%) group, a significant decrease in trypsin and chymotrypsin enzymatic activities were observed. Regarding the in vitro digestion model, our findings show that there were no changes in the trypsin and chymotrypsin enzymatic activities either using 7.5 or 75 mg of tartrazine mixed with rice, butter or milk. We conclude that excessive consumption of tartrazine appears to alter the enzymatic activity of proteases in vivo which may have deleterious consequences on digestion. Even thought the dose close to the acceptable daily intake does not affect those activities, a strict control of tartrazine dose in high-consumption foods especially among children is an indispensable task.
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Affiliation(s)
- Fatma Zohra Ameur
- Laboratory of Physiology of Nutrition and Food Security, University Oran1 Ahmed BenBella, Oran, Algeria
| | - Nabila Mehedi
- Laboratory of Physiology of Nutrition and Food Security, University Oran1 Ahmed BenBella, Oran, Algeria
| | - Cristina Soler Rivas
- Department of Production and Characterization of Novel Foods, CIAL-Research Institute in Food Science (UAM-CSIC), Madrid, Spain
| | - Antonio Gonzalez
- Institute of Molecular Pathology Biomarkers, University of Extremadura, Cáceres, Spain
| | - Omar Kheroua
- Laboratory of Physiology of Nutrition and Food Security, University Oran1 Ahmed BenBella, Oran, Algeria
| | - Djamel Saidi
- Laboratory of Physiology of Nutrition and Food Security, University Oran1 Ahmed BenBella, Oran, Algeria
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Phenolic Profile, Antioxidant, and Antidiabetic Potential Exerted by Millet Grain Varieties. Antioxidants (Basel) 2020; 9:antiox9030254. [PMID: 32245008 PMCID: PMC7139927 DOI: 10.3390/antiox9030254] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 03/17/2020] [Accepted: 03/19/2020] [Indexed: 12/13/2022] Open
Abstract
This study evaluated the potential antioxidant and antidiabetic properties in vitro of four millet grain varieties cultivated in South Korea. The free fractions were tested for their total antioxidant capacity using 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS+) and 2,2′-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assays, followed by α-glucosidase, α-amylase, and advanced glycation endproducts (AGEs) formation inhibition assays. The total phenolics, flavonoids, and condensed tannins in the free fractions ranged from 107.8 to 136.4 mg ferulic acid equivalent (FAE)/100 g, 101.3 to 115.8 mg catechin equivalent (CE)/100 g, and 17.65 to 59.54 mg catechin equivalent (CE)/100 g, respectively. Finger Italian millet had the highest total phenolic content (136.4 mg FAE/100 g) and flavonoid content (115.8 mg CE/100 g). Barnyard and finger Italian millet showed the highest DPPH (IC50 = 359.6 µg/mL and 436.25 µg/mL, respectively) and ABTS radical scavenging activity (IC50 = 362.40 µg/mL and 381.65 µg/mL, respectively). Similarly, finger Italian millet also exhibited significantly lower IC50 values for the percentage inhibition of α-glucosidase (18.07 µg/mL) and α-amylase (10.56 µg/mL) as compared with acarbose (IC50 = 59.34 µg/mL and 27.73 µg/mL, respectively) and AGEs formation (33.68 µg/mL) as compared with aminoguanidine (AG) (52.30 µg/mL). All eight phenolic compounds identified in finger Italian millet were flavonoids, with flavanols being the predominant subclass. Taken together, millet flavonoids play important roles in the prevention and management of type 2 diabetes, and hence finger Italian millet has the potential to be developed as a functional food.
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Yang X, Wei HM, Hu GY, Zhao J, Long LN, Li CJ, Zhao ZJ, Zeng HK, Nie H. Combining antioxidant astaxantin and cholinesterase inhibitor huperzine A boosts neuroprotection. Mol Med Rep 2020; 21:1043-1050. [PMID: 31922239 PMCID: PMC7003047 DOI: 10.3892/mmr.2020.10920] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 10/15/2019] [Indexed: 01/17/2023] Open
Abstract
Oxidative stress is a pathophysiological condition resulting in neurotoxicity, which is possibly associated with neurodegenerative disorders. In this study, the antioxidative effects of the antioxidant astaxanthin (AXT) in combination with huperzine A (HupA), which is used as a cholinesterase inhibitor for the treatment of Alzheimer's disease, were investigated. PC12 cells were treated with either tert-butyl hydroperoxide (TBHP), or with the toxic version of β-amyloid, Aβ25–35, to induce oxidative stress and neurotoxicity. Cell viability, morphology, lactate dehydrogenase (LDH) release, intracellular accumulation of reactive oxygen species (ROS), superoxide dismutase (SOD) activity and malondialdehyde (MDA) content were determined, while neuroprotection was also monitored using an MTT assay. It was found that combining AXT with HupA significantly increased the viability of PC12 cells, prevented membrane damage (as measured by LDH release), attenuated intracellular ROS formation, increased SOD activity and decreased the level of MDA after TBHP exposure when compared to these drugs administered alone. Pretreatment with HupA and AXT decreased toxic damage produced by Aβ25–35. These data indicated that combining an antioxidant with a cholinesterase inhibitor increases the degree of neuroprotection; with future investigation this could be a potential therapy used to decrease neurotoxicity in the brain.
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Affiliation(s)
- Xin Yang
- Department of Pharmacy, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510700, P.R. China
| | - Han-Mei Wei
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Guo-Yan Hu
- Department of Clinical Laboratory, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510700, P.R. China
| | - Jun Zhao
- Department of Obstetrics, Guangdong Women and Children Hospital, Guangzhou, Guangdong 510010, P.R. China
| | - Li-Na Long
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Chang-Jian Li
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Zi-Jun Zhao
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - He-Kun Zeng
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Hong Nie
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, Guangdong 510632, P.R. China
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Kang GG, Francis N, Hill R, Waters D, Blanchard C, Santhakumar AB. Dietary Polyphenols and Gene Expression in Molecular Pathways Associated with Type 2 Diabetes Mellitus: A Review. Int J Mol Sci 2019; 21:ijms21010140. [PMID: 31878222 PMCID: PMC6981492 DOI: 10.3390/ijms21010140] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 12/13/2019] [Accepted: 12/18/2019] [Indexed: 02/07/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a complex metabolic disorder with various contributing factors including genetics, epigenetics, environment and lifestyle such as diet. The hallmarks of T2DM are insulin deficiency (also referred to as β-cell dysfunction) and insulin resistance. Robust evidence suggests that the major mechanism driving impaired β-cell function and insulin signalling is through the action of intracellular reactive oxygen species (ROS)-induced stress. Chronic high blood glucose (hyperglycaemia) and hyperlipidaemia appear to be the primary activators of these pathways. Reactive oxygen species can disrupt intracellular signalling pathways, thereby dysregulating the expression of genes associated with insulin secretion and signalling. Plant-based diets, containing phenolic compounds, have been shown to exhibit remedial benefits by ameliorating insulin secretion and insulin resistance. The literature also provides evidence that polyphenol-rich diets can modulate the expression of genes involved in insulin secretion, insulin signalling, and liver gluconeogenesis pathways. However, whether various polyphenols and phenolic compounds can target specific cellular signalling pathways involved in the pathogenesis of T2DM has not been elucidated. This review aims to evaluate the modulating effects of various polyphenols and phenolic compounds on genes involved in cellular signalling pathways (both in vitro and in vivo from human, animal and cell models) leading to the pathogenesis of T2DM.
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Affiliation(s)
- Gideon Gatluak Kang
- Australian Research Council (ARC) Industrial Transformation Training Centre (ITTC) for Functional Grains, Graham Centre for Agricultural Innovation, Wagga Wagga, NSW 2650, Australia; (G.G.K.); (N.F.); (D.W.); (C.B.)
- School of Biomedical Sciences, Charles Sturt University, NSW 2650, Australia;
| | - Nidhish Francis
- Australian Research Council (ARC) Industrial Transformation Training Centre (ITTC) for Functional Grains, Graham Centre for Agricultural Innovation, Wagga Wagga, NSW 2650, Australia; (G.G.K.); (N.F.); (D.W.); (C.B.)
- School of Animal and Veterinary Sciences, Charles Sturt University, NSW 2650, Australia
| | - Rodney Hill
- School of Biomedical Sciences, Charles Sturt University, NSW 2650, Australia;
| | - Daniel Waters
- Australian Research Council (ARC) Industrial Transformation Training Centre (ITTC) for Functional Grains, Graham Centre for Agricultural Innovation, Wagga Wagga, NSW 2650, Australia; (G.G.K.); (N.F.); (D.W.); (C.B.)
- School of Biomedical Sciences, Charles Sturt University, NSW 2650, Australia;
| | - Christopher Blanchard
- Australian Research Council (ARC) Industrial Transformation Training Centre (ITTC) for Functional Grains, Graham Centre for Agricultural Innovation, Wagga Wagga, NSW 2650, Australia; (G.G.K.); (N.F.); (D.W.); (C.B.)
- School of Biomedical Sciences, Charles Sturt University, NSW 2650, Australia;
| | - Abishek Bommannan Santhakumar
- Australian Research Council (ARC) Industrial Transformation Training Centre (ITTC) for Functional Grains, Graham Centre for Agricultural Innovation, Wagga Wagga, NSW 2650, Australia; (G.G.K.); (N.F.); (D.W.); (C.B.)
- School of Biomedical Sciences, Charles Sturt University, NSW 2650, Australia;
- Correspondence: ; Tel.: +61-2-6933-2678
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Yu LY, Hu KC, Liu CJ, Hung CL, Bair MJ, Chen MJ, Wang HY, Wu MS, Shih SC, Liu CC. Helicobacter pylori infection combined with non-alcoholic fatty liver disease increase the risk of atherosclerosis: Focus in carotid artery plaque. Medicine (Baltimore) 2019; 98:e14672. [PMID: 30817593 PMCID: PMC6831312 DOI: 10.1097/md.0000000000014672] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 02/01/2019] [Accepted: 02/04/2019] [Indexed: 12/12/2022] Open
Abstract
Atherosclerosis has severe consequences on human health. Carotid artery plaques are a condition typically caused by atherosclerosis. Previous studies showed that nonalcoholic fatty liver disease (NAFLD) and Helicobacter pylori (H pylori) are risks factors for carotid artery plaque formation. We hypothesize that the combination of NAFLD with H pylori infection increases the risk of carotid artery plaque formation.A total of 4669 subjects aged > 40 years who underwent routine health checkups between January 2006 and December 2015 were retrospectively reviewed. A serial examination, including abdominal ultrasound, carotid artery ultrasound and esophago-gastroduodenoscopy (EGD), and biopsy urease testing, was conducted.In total, 2402 subjects were enrolled. There were no differences in H pylori infection status among patients with or without NAFLD. There was a trend of more participants with both NAFLD and H pylori infection (number [N]=583) presenting carotid artery plaque (N = 187,32.08%) than participants without NAFLD and H pylori infection (N = 589) who presented plaque formation (N = 106, 18.00%). Participants who had both H pylori infection and NAFLD had the highest risk of any carotid artery plaque (odds ratio [OR], 1.93; 95% confidence interval [CI], 1.413-2.636) based on a multivariate logistic regression analysis. This analysis also showed that age >60 years, male sex, low-density lipoprotein (LDL) >130 mg/dL, and H pylori infection were independent risk factors for concomitant NAFLD and carotid artery plaque formation.The combination of H pylori infection and NAFLD increases carotid artery plaque formation. H pylori eradication and NAFLD control may be warranted to prevent carotid artery plaque formation.
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Affiliation(s)
- Lo-Yip Yu
- Division of Gastroenterology, Department of Internal Medicine, Healthy Evaluation Center
| | - Kuang-Chun Hu
- Division of Gastroenterology, Department of Internal Medicine, Healthy Evaluation Center
| | - Chun-Jen Liu
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chung-Lieh Hung
- Division of Cardiology, Department of Internal Medicine, Mackay Memorial Hospital, Taipei
| | - Ming-Jong Bair
- Division of Gastroenterology, Department of Internal Medicine, Mackay Memorial Hospital, Taitung Branch, Taitung
| | - Ming-Jen Chen
- Division of Gastroenterology, Department of Internal Medicine, Healthy Evaluation Center
| | - Horng-Yuan Wang
- Division of Gastroenterology, Department of Internal Medicine, Healthy Evaluation Center
| | - Ming-Shiang Wu
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Shou-Chuan Shih
- Division of Gastroenterology, Department of Internal Medicine, Healthy Evaluation Center
| | - Chuan-Chuan Liu
- Division of Gastroenterology, Department of Internal Medicine, Healthy Evaluation Center
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Nwanna EE, Adebayo AA, Ademosun AO, Oboh G. Phenolic distribution, antioxidant activity, and enzyme inhibitory properties of eggplant (Solanum aethiopicum) cultivated in two different locations within Nigeria. J Food Biochem 2019; 43:e12797. [PMID: 31353619 DOI: 10.1111/jfbc.12797] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 01/16/2019] [Accepted: 01/17/2019] [Indexed: 12/25/2022]
Abstract
Solanum aethiopicum is commonly cultivated in Nigeria for its nutritional and medicinal properties. Although, information on the possible effect of location on the biological activities of S. aethiopicum has not been reported, however, present research work investigated the phenolic contents and distribution, antioxidative properties, and enzyme inhibitory activities of S. aethiopicum collected from two locations in Nigeria. HPLC phenolic profile, polyphenol contents, free radical scavenging activities, and inhibitory effect of eggplant extracts on carbohydrate metabolizing enzymes were carried out. Significant variations were observed in the phenolic profile, polyphenol contents, antioxidant activities, and enzymes inhibitory properties of the extracts from different locations. In most of the analyses carried out, extract of eggplant fruit collected from Uyo (UEF) showed higher activities than the one obtained from Ibadan (IEF). Thus, findings from this study revealed that geographical location may influence the phenolic contents, antioxidant, and enzymes inhibitory properties of eggplant fruits. PRACTICAL APPLICATIONS: The geographical location of a particular place determines the nature and biological activities of plants cultivated in the area. Hence, we presented the effect of location on the phenolic profile, antioxidant, and enzyme inhibitory properties of eggplant fruit (S. aethiopicum) cultivated in two different locations in Nigeria. However, data generated in this study showed the effect of location on phenolic composition and biological activities of eggplant fruit cultivated in Nigeria.
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Affiliation(s)
- Esther E Nwanna
- Functional Foods and Nutraceutical Unit, Biochemistry Department, Federal University of Technology, Akure, Nigeria
| | - Adeniyi A Adebayo
- Functional Foods and Nutraceutical Unit, Biochemistry Department, Federal University of Technology, Akure, Nigeria
| | - Ayokunle O Ademosun
- Functional Foods and Nutraceutical Unit, Biochemistry Department, Federal University of Technology, Akure, Nigeria
| | - Ganiyu Oboh
- Functional Foods and Nutraceutical Unit, Biochemistry Department, Federal University of Technology, Akure, Nigeria
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Breitwieser M, Vigneau E, Viricel A, Becquet V, Lacroix C, Erb M, Huet V, Churlaud C, Le Floch S, Guillot B, Graber M, Thomas H. What is the relationship between the bioaccumulation of chemical contaminants in the variegated scallop Mimachlamys varia and its health status? A study carried out on the French Atlantic coast using the Path ComDim model. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 640-641:662-670. [PMID: 29870942 DOI: 10.1016/j.scitotenv.2018.05.317] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 05/25/2018] [Accepted: 05/25/2018] [Indexed: 05/19/2023]
Abstract
Increasing activity along the French Atlantic coast has led to chronic pollution with, in particular, mixtures of contaminants such as hydrocarbons, phytosanitary products, PCBs and heavy metals. Based on previous research, pollution biomarkers were used in this study as they can indicate health status when monitoring the impact of pollutants on coastal species such as the marine bivalve Mimachlamys varia. Mollusc bivalves were sampled in March 2016, in open and semi-open areas (a harbour zone), from thirteen sites which differed in terms of their level of pollution, and were located along the Atlantic coast from Brittany down to the Nouvelle-Aquitaine region. First, analyses of heavy metals and organic contaminants (e.g. pesticides, polycyclic aromatic hydrocarbons, polychlorobiphenyl) in the digestive gland of bivalves were performed. Second, biochemical assays were used to study defence biomarkers: oxidative stress with Superoxide Dismutase (SOD), detoxification of organic compounds with Glutathione-S Transferase (GST), lipid peroxidation with Malondialdehyde (MDA), and immune processes with Laccase. In addition to the biochemical assays, a genetic approach was used to measure genetic diversity (haplotype and nucleotide diversity) at each site. Biomarker assays and genetic diversity were correlated with the chemical contaminants in bivalves using the Path-ComDim statistical model. Our results showed specific correlations between biochemical assays in the digestive glands with heavy metal contaminants, and between genetic diversity and organic pollution. Blocks of responses were analysed for correlations in order to develop standardized tools and guidelines that could improve our understanding of the short-term and long-term impact of contaminants on physiological parameters.
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Affiliation(s)
- Marine Breitwieser
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS - Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France.
| | | | - Amélia Viricel
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS - Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - Vanessa Becquet
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS - Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - Camille Lacroix
- Cedre, Centre de Documentation, de Recherche et d'Expérimentations sur les Pollutions Accidentelles des Eaux, 715 rue Alain Colas, CS 41836, Brest, Cedex 2, France
| | - Marina Erb
- Cedre, Centre de Documentation, de Recherche et d'Expérimentations sur les Pollutions Accidentelles des Eaux, 715 rue Alain Colas, CS 41836, Brest, Cedex 2, France
| | - Valérie Huet
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS - Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - Carine Churlaud
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS - Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - Stéphane Le Floch
- Cedre, Centre de Documentation, de Recherche et d'Expérimentations sur les Pollutions Accidentelles des Eaux, 715 rue Alain Colas, CS 41836, Brest, Cedex 2, France
| | - Benoit Guillot
- UMR CNRS 5805 EPOC-OASU-Université de Bordeaux, Allée Geoffroy Saint-Hilaire, CS 50023 33615 Pessac Cedex, France
| | - Marianne Graber
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS - Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - Hélène Thomas
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS - Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
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Heras‐Mosteiro J, Monge‐Maillo B, Pinart M, Lopez Pereira P, Reveiz L, Garcia‐Carrasco E, Campuzano Cuadrado P, Royuela A, Mendez Roman I, López‐Vélez R. Interventions for Old World cutaneous leishmaniasis. Cochrane Database Syst Rev 2017; 12:CD005067. [PMID: 29192424 PMCID: PMC6485999 DOI: 10.1002/14651858.cd005067.pub5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Cutaneous leishmaniasis, caused by a parasitic infection, is considered one of the most serious skin diseases in many low- and middle-income countries. Old World cutaneous leishmaniasis (OWCL) is caused by species found in Africa, Asia, the Middle East, the Mediterranean, and India. The most commonly prescribed treatments are antimonials, but other drugs have been used with varying success. As OWCL tends to heal spontaneously, it is necessary to justify the use of systemic and topical treatments. This is an update of a Cochrane Review first published in 2008. OBJECTIVES To assess the effects of therapeutic interventions for the localised form of Old World cutaneous leishmaniasis. SEARCH METHODS We updated our searches of the following databases to November 2016: the Cochrane Skin Specialised Register, CENTRAL, MEDLINE, Embase, and LILACS. We also searched five trials registers and checked the reference lists of included studies for further references to relevant randomised controlled trials (RCTs). We wrote to national programme managers, general co-ordinators, directors, clinicians, WHO-EMRO regional officers of endemic countries, pharmaceutical companies, tropical medicine centres, and authors of relevant papers for further information about relevant unpublished and ongoing trials. We undertook a separate search for adverse effects of interventions for Old World cutaneous leishmaniasis in September 2015 using MEDLINE. SELECTION CRITERIA Randomised controlled trials of either single or combination treatments in immunocompetent people with OWCL confirmed by smear, histology, culture, or polymerase chain reaction. The comparators were either no treatment, placebo/vehicle, and/or another active compound. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trials for inclusion and risk of bias and extracted data. We only synthesised data when we were able to identify at least two studies investigating similar treatments and reporting data amenable to pooling. We also recorded data about adverse effects from the corresponding search. MAIN RESULTS We included 89 studies (of which 40 were new to this update) in 10,583 people with OWCL. The studies included were conducted mainly in the Far or Middle East at regional hospitals, local healthcare clinics, and skin disease research centres. Women accounted for 41.5% of the participants (range: 23% to 80%). The overall mean age of participants was 25 years (range 12 to 56). Most studies lasted between two to six months, with the longest lasting two years; average duration was four months. Most studies were at unclear or high risk for most bias domains. A lack of blinding and reporting bias were present in almost 40% of studies. Two trials were at low risk of bias for all domains. Trials reported the causative species poorly.Here we provide results for the two main comparisons identified: itraconazole (200 mg for six to eight weeks) versus placebo; and paromomycin ointment (15% plus 10% urea, twice daily for 14 days) versus vehicle.In the comparison of oral itraconazole versus placebo, at 2.5 months' follow up, 85/125 participants in the itraconazole group achieved complete cure compared to 54/119 in the placebo group (RR 3.70, 95% CI 0.35 to 38.99; 3 studies; 244 participants). In one study, microbiological or histopathological cure of skin lesions only occurred in the itraconazole group after a mean follow-up of 2.5 months (RR 17.00, 95% CI 0.47 to 612.21; 20 participants). However, although the analyses favour oral itraconazole for these outcomes, we cannot be confident in the results due to the very low certainty evidence. More side effects of mild abdominal pain and nausea (RR 2.36, 95% CI 0.74 to 7.47; 3 studies; 204 participants) and mild abnormal liver function (RR 3.08, 95% CI 0.53 to 17.98; 3 studies; 84 participants) occurred in the itraconazole group (as well as reports of headaches and dizziness), compared with the placebo group, but again we rated the certainty of evidence as very low so are unsure of the results.When comparing paromomycin with vehicle, there was no difference in the number of participants who achieved complete cure (RR of 1.00, 95% CI 0.86, 1.17; 383 participants, 2 studies) and microbiological or histopathological cure of skin lesions after a mean follow-up of 2.5 months (RR 1.03, CI 0.88 to 1.20; 383 participants, 2 studies), but the paromomycin group had more skin/local reactions (such as inflammation, vesiculation, pain, redness, or itch) (RR 1.42, 95% CI 0.67 to 3.01; 4 studies; 713 participants). For all of these outcomes, the certainty of evidence was very low, meaning we are unsure about these results.Trial authors did not report the percentage of lesions cured after the end of treatment or speed of healing for either of these key comparisons. AUTHORS' CONCLUSIONS There was very low-certainty evidence to support the effectiveness of itraconazole and paromomycin ointment for OWCL in terms of cure (i.e. microbiological or histopathological cure and percentage of participants completely cured). Both of these interventions incited more adverse effects, which were mild in nature, than their comparisons, but we could draw no conclusions regarding safety due to the very low certainty of the evidence for this outcome.We downgraded the key outcomes in these two comparisons due to high risk of bias, inconsistency between the results, and imprecision. There is a need for large, well-designed international studies that evaluate long-term effects of current therapies and enable a reliable conclusion about treatments. Future trials should specify the species of leishmaniasis; trials on types caused by Leishmania infantum, L aethiopica, andL donovani are lacking. Research into the effects of treating women of childbearing age, children, people with comorbid conditions, and those who are immunocompromised would also be helpful.It was difficult to evaluate the overall efficacy of any of the numerous treatments due to the variable treatment regimens examined and because RCTs evaluated different Leishmania species and took place in different geographical areas. Some outcomes we looked for but did not find were degree of functional and aesthetic impairment, change in ability to detect Leishmania, quality of life, and emergence of resistance. There were only limited data on prevention of scarring.
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Affiliation(s)
- Julio Heras‐Mosteiro
- Rey Juan Carlos UniversityDepartment of Preventive Medicine and Public Health & Immunology and MicrobiologyAvda. Atenas s/nAlcorcónMadridSpain28922
- Ramón y Cajal University HospitalDepartment of Preventive Medicine and Public HealthMadridSpain
| | - Begoña Monge‐Maillo
- Ramón y Cajal University HospitalTropical Medicine & Clinical Parasitology, Infectious Diseases DepartmentCarretera de Colmenar Viejo km. 9,100MadridSpain28034
| | - Mariona Pinart
- c/o Cochrane Skin Group, The University of Nottingham, Nottingham, UKNottinghamUK
| | - Patricia Lopez Pereira
- Ramón y Cajal University HospitalDepartment of Preventive Medicine and Public HealthMadridSpain
| | | | - Emely Garcia‐Carrasco
- National Referral Centre for Tropical DiseasesInfectious Diseases DepartmentCtra Colmenar, Km 9,100.MadridSpain28034
| | - Pedro Campuzano Cuadrado
- Rey Juan Carlos UniversityDepartment of Preventive Medicine and Public Health & Immunology and MicrobiologyAvda. Atenas s/nAlcorcónMadridSpain28922
| | - Ana Royuela
- Biomedical Sciences Research Institute,Hospital Universitario Puerta de Hierro‐MajadahondaDepartment of BiostatisticsMajadahondaSpain28222
| | - Irene Mendez Roman
- The University of Nottinghamc/o Cochrane Skin GroupA103, King's Meadow CampusLenton LaneNottinghamSpainNG7 2NR
| | - Rogelio López‐Vélez
- Ramón y Cajal University HospitalTropical Medicine & Clinical Parasitology, Infectious Diseases DepartmentCarretera de Colmenar Viejo km. 9,100MadridSpain28034
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Heras‐Mosteiro J, Monge‐Maillo B, Pinart M, Lopez Pereira P, Garcia‐Carrasco E, Campuzano Cuadrado P, Royuela A, Mendez Roman I, López‐Vélez R. Interventions for Old World cutaneous leishmaniasis. Cochrane Database Syst Rev 2017; 11:CD005067. [PMID: 29149474 PMCID: PMC6486265 DOI: 10.1002/14651858.cd005067.pub4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Cutaneous leishmaniasis, caused by a parasitic infection, is considered one of the most serious skin diseases in many low- and middle-income countries. Old World cutaneous leishmaniasis (OWCL) is caused by species found in Africa, Asia, the Middle East, the Mediterranean, and India. The most commonly prescribed treatments are antimonials, but other drugs have been used with varying success. As OWCL tends to heal spontaneously, it is necessary to justify the use of systemic and topical treatments. This is an update of a Cochrane Review first published in 2008. OBJECTIVES To assess the effects of therapeutic interventions for the localised form of Old World cutaneous leishmaniasis. SEARCH METHODS We updated our searches of the following databases to November 2016: the Cochrane Skin Specialised Register, CENTRAL, MEDLINE, Embase, and LILACS. We also searched five trials registers and checked the reference lists of included studies for further references to relevant randomised controlled trials (RCTs). We wrote to national programme managers, general co-ordinators, directors, clinicians, WHO-EMRO regional officers of endemic countries, pharmaceutical companies, tropical medicine centres, and authors of relevant papers for further information about relevant unpublished and ongoing trials. We undertook a separate search for adverse effects of interventions for Old World cutaneous leishmaniasis in September 2015 using MEDLINE. SELECTION CRITERIA Randomised controlled trials of either single or combination treatments in immunocompetent people with OWCL confirmed by smear, histology, culture, or polymerase chain reaction. The comparators were either no treatment, placebo/vehicle, and/or another active compound. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trials for inclusion and risk of bias and extracted data. We only synthesised data when we were able to identify at least two studies investigating similar treatments and reporting data amenable to pooling. We also recorded data about adverse effects from the corresponding search. MAIN RESULTS We included 89 studies (of which 40 were new to this update) in 10,583 people with OWCL. The studies included were conducted mainly in the Far or Middle East at regional hospitals, local healthcare clinics, and skin disease research centres. Women accounted for 41.5% of the participants (range: 23% to 80%). The overall mean age of participants was 25 years (range 12 to 56). Most studies lasted between two to six months, with the longest lasting two years; average duration was four months. Most studies were at unclear or high risk for most bias domains. A lack of blinding and reporting bias were present in almost 40% of studies. Two trials were at low risk of bias for all domains. Trials reported the causative species poorly.Here we provide results for the two main comparisons identified: itraconazole (200 mg for six to eight weeks) versus placebo; and paromomycin ointment (15% plus 10% urea, twice daily for 14 days) versus vehicle.In the comparison of oral itraconazole versus placebo, at 2.5 months' follow up, 85/125 participants in the itraconazole group achieved complete cure compared to 54/119 in the placebo group (RR 3.70, 95% CI 0.35 to 38.99; 3 studies; 244 participants). In one study, microbiological or histopathological cure of skin lesions only occurred in the itraconazole group after a mean follow-up of 2.5 months (RR 17.00, 95% CI 0.47 to 612.21; 20 participants). However, although the analyses favour oral itraconazole for these outcomes, we cannot be confident in the results due to the very low certainty evidence. More side effects of mild abdominal pain and nausea (RR 2.36, 95% CI 0.74 to 7.47; 3 studies; 204 participants) and mild abnormal liver function (RR 3.08, 95% CI 0.53 to 17.98; 3 studies; 84 participants) occurred in the itraconazole group (as well as reports of headaches and dizziness), compared with the placebo group, but again we rated the certainty of evidence as very low so are unsure of the results.When comparing paromomycin with vehicle, there was no difference in the number of participants who achieved complete cure (RR of 1.00, 95% CI 0.86, 1.17; 383 participants, 2 studies) and microbiological or histopathological cure of skin lesions after a mean follow-up of 2.5 months (RR 1.03, CI 0.88 to 1.20; 383 participants, 2 studies), but the paromomycin group had more skin/local reactions (such as inflammation, vesiculation, pain, redness, or itch) (RR 1.42, 95% CI 0.67 to 3.01; 4 studies; 713 participants). For all of these outcomes, the certainty of evidence was very low, meaning we are unsure about these results.Trial authors did not report the percentage of lesions cured after the end of treatment or speed of healing for either of these key comparisons. AUTHORS' CONCLUSIONS There was very low-certainty evidence to support the effectiveness of itraconazole and paromomycin ointment for OWCL in terms of cure (i.e. microbiological or histopathological cure and percentage of participants completely cured). Both of these interventions incited more adverse effects, which were mild in nature, than their comparisons, but we could draw no conclusions regarding safety due to the very low certainty of the evidence for this outcome.We downgraded the key outcomes in these two comparisons due to high risk of bias, inconsistency between the results, and imprecision. There is a need for large, well-designed international studies that evaluate long-term effects of current therapies and enable a reliable conclusion about treatments. Future trials should specify the species of leishmaniasis; trials on types caused by Leishmania infantum, L aethiopica, andL donovani are lacking. Research into the effects of treating women of childbearing age, children, people with comorbid conditions, and those who are immunocompromised would also be helpful.It was difficult to evaluate the overall efficacy of any of the numerous treatments due to the variable treatment regimens examined and because RCTs evaluated different Leishmania species and took place in different geographical areas. Some outcomes we looked for but did not find were degree of functional and aesthetic impairment, change in ability to detect Leishmania, quality of life, and emergence of resistance. There were only limited data on prevention of scarring.
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Affiliation(s)
| | - Begoña Monge‐Maillo
- Ramón y Cajal University HospitalTropical Medicine & Clinical Parasitology, Infectious Diseases DepartmentCarretera de Colmenar Viejo km. 9,100MadridSpain28034
| | - Mariona Pinart
- c/o Cochrane Skin Group, The University of Nottingham, Nottingham, UKNottinghamUK
| | - Patricia Lopez Pereira
- Ramón y Cajal University HospitalDepartment of Preventive Medicine and Public HealthMadridSpain
| | - Emely Garcia‐Carrasco
- National Referral Centre for Tropical DiseasesInfectious Diseases DepartmentCtra Colmenar, Km 9,100.MadridSpain28034
| | - Pedro Campuzano Cuadrado
- Rey Juan Carlos UniversityDepartment of Preventive Medicine and Public Health & Immunology and MicrobiologyAvda. Atenas s/nAlcorcónMadridSpain28922
| | - Ana Royuela
- Biomedical Sciences Research Institute,Hospital Universitario Puerta de Hierro‐MajadahondaDepartment of BiostatisticsMajadahondaSpain28222
| | - Irene Mendez Roman
- The University of Nottinghamc/o Cochrane Skin GroupA103, King's Meadow CampusLenton LaneNottinghamSpainNG7 2NR
| | - Rogelio López‐Vélez
- Ramón y Cajal University HospitalTropical Medicine & Clinical Parasitology, Infectious Diseases DepartmentCarretera de Colmenar Viejo km. 9,100MadridSpain28034
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Jaisson S, Desmons A, Gorisse L, Gillery P. [Protein molecular aging: which role in physiopathology?]. Med Sci (Paris) 2017; 33:176-182. [PMID: 28240209 DOI: 10.1051/medsci/20173302013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Protein molecular aging corresponds to all modifications affecting proteins during their biological life, which lead to the alteration of their structural and functional properties. This phenomenon participates in cell and tissue aging and is therefore involved in the aging of human organism. It is also amplified in various chronic diseases such as diabetes mellitus or chronic kidney disease, where it participates in the development of long-term complications. This review aims at describing the main reactions responsible for molecular aging, their impact on protein properties and the parameters which could influence this phenomenon. A general scheme explaining its role in physiopathology is also proposed.
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Affiliation(s)
- Stéphane Jaisson
- Université de Reims Champagne-Ardenne, CNRS UMR 7369, Laboratoire de Biochimie Médicale et Biologie Moléculaire, UFR de Médecine, 51, rue Cognacq-Jay, 51095 Reims Cedex, France - Centre Hospitalier Universitaire de Reims, Pôle de Biologie Médicale et Pathologie, Laboratoire de Biologie et de Recherche Pédiatriques, 45, rue Cognacq-Jay, 51092 Reims Cedex, France
| | - Aurore Desmons
- Université de Reims Champagne-Ardenne, CNRS UMR 7369, Laboratoire de Biochimie Médicale et Biologie Moléculaire, UFR de Médecine, 51, rue Cognacq-Jay, 51095 Reims Cedex, France - Centre Hospitalier Universitaire de Reims, Pôle de Biologie Médicale et Pathologie, Laboratoire de Biologie et de Recherche Pédiatriques, 45, rue Cognacq-Jay, 51092 Reims Cedex, France
| | - Laëtitia Gorisse
- Université de Reims Champagne-Ardenne, CNRS UMR 7369, Laboratoire de Biochimie Médicale et Biologie Moléculaire, UFR de Médecine, 51, rue Cognacq-Jay, 51095 Reims Cedex, France
| | - Philippe Gillery
- Université de Reims Champagne-Ardenne, CNRS UMR 7369, Laboratoire de Biochimie Médicale et Biologie Moléculaire, UFR de Médecine, 51, rue Cognacq-Jay, 51095 Reims Cedex, France - Centre Hospitalier Universitaire de Reims, Pôle de Biologie Médicale et Pathologie, Laboratoire de Biologie et de Recherche Pédiatriques, 45, rue Cognacq-Jay, 51092 Reims Cedex, France
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Jabri MA, Sani M, Rtibi K, Marzouki L, El-Benna J, Sakly M, Sebai H. Chamomile decoction extract inhibits human neutrophils ROS production and attenuates alcohol-induced haematological parameters changes and erythrocytes oxidative stress in rat. Lipids Health Dis 2016; 15:65. [PMID: 27029534 PMCID: PMC4815212 DOI: 10.1186/s12944-016-0233-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 03/22/2016] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND The aim of this study was to evaluate the protective effects of subacute pre-treatment with chamomile (Matricaria recutita L.) decoction extract (CDE) against stimulated neutrophils ROS production as well as ethanol (EtOH)-induced haematological changes and erythrocytes oxidative stress in rat. METHODS Neutrophils were isolated and ROS generation was measured by luminol-amplified chemiluminescence. Superoxide anion generation was detected by the cytochrome c reduction assay. Adult male wistar rats were used and divided into six groups of ten each: control, EtOH, EtOH + various doses of CDE (25, 50, and 100 mg/kg, b.w.), and EtOH+ ascorbic acid (AA). Animals were pre-treated with CDE extract during 10 days. RESULTS We found that CDE inhibited (P ≤ 0.0003) luminol-amplified chemiluminescence of resting neutrophils and N-formyl methionylleucyl-phenylalanine (fMLF) or phorbolmyristate acetate (PMA) stimulated neutrophils, in a dose-dependent manner. CDE had no effect on superoxide anion, but it inhibited (P ≤ 0.0004) H2O2 production in cell free system. In vivo, CDE counteracted (P ≤ 0.0034) the effect of single EtOH administration which induced (P < 0.0001) an increase of white blood cells (WBC) and platelets (PLT) counts. Our results also demonstrated that alcohol administration significantly (P < 0.0001) induced erythrocytes lipoperoxidation increase and depletion of sulfhydryl groups (-SH) content as well as antioxidant enzyme activities as superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx). More importantly, we found that acute alcohol administration increased (P < 0.0001) erythrocytes and plasma hydrogen peroxide (H2O2), free iron, and calcium levels while the CDE pre-treatment reversed increased (P ≤ 0.0051) all these intracellular disturbances. CONCLUSIONS These findings suggest that CDE inhibits neutrophil ROS production and protects against EtOH-induced haematologiacal parameters changes and erythrocytes oxidative stress. The haematoprotection offered by chamomile might involve in part its antioxidant properties as well as its opposite effect on some intracellular mediators such as H2O2, free iron, and calcium.
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Affiliation(s)
- Mohamed-Amine Jabri
- Laboratoire de Physiologie Intégrée, Faculté des Sciences de Bizerte, 7021, Zarzouna, Tunisia.,Laboratoire de Physiologie Fonctionnelle et Valorisation des Bio-Ressources - Institut, Supérieur de Biotechnologie de Béja, Université de Jendouba, Avenue Habib Bourguiba, B.P. 382-9000, Béja, Tunisia.,INSERM, U1149, Centre de Recherche Sur l'Inflammation - Faculté de Médecine X. Bichat, 75018, Paris, France
| | - Mamane Sani
- UMR Biosurveillance et Toxicologie Environnementale, Département de Biologie, Faculté des Sciences et Techniques de Maradi, 465, Maradi, Niger.
| | - Kais Rtibi
- Laboratoire de Physiologie Fonctionnelle et Valorisation des Bio-Ressources - Institut, Supérieur de Biotechnologie de Béja, Université de Jendouba, Avenue Habib Bourguiba, B.P. 382-9000, Béja, Tunisia
| | - Lamjed Marzouki
- Laboratoire de Physiologie Fonctionnelle et Valorisation des Bio-Ressources - Institut, Supérieur de Biotechnologie de Béja, Université de Jendouba, Avenue Habib Bourguiba, B.P. 382-9000, Béja, Tunisia
| | - Jamel El-Benna
- INSERM, U1149, Centre de Recherche Sur l'Inflammation - Faculté de Médecine X. Bichat, 75018, Paris, France
| | - Mohsen Sakly
- Laboratoire de Physiologie Intégrée, Faculté des Sciences de Bizerte, 7021, Zarzouna, Tunisia
| | - Hichem Sebai
- Laboratoire de Physiologie Intégrée, Faculté des Sciences de Bizerte, 7021, Zarzouna, Tunisia.,Laboratoire de Physiologie Fonctionnelle et Valorisation des Bio-Ressources - Institut, Supérieur de Biotechnologie de Béja, Université de Jendouba, Avenue Habib Bourguiba, B.P. 382-9000, Béja, Tunisia
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Xu X, Lu L, Dong Q, Li X, Zhang N, Xin Y, Xuan S. Research advances in the relationship between nonalcoholic fatty liver disease and atherosclerosis. Lipids Health Dis 2015; 14:158. [PMID: 26631018 PMCID: PMC4668687 DOI: 10.1186/s12944-015-0141-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 10/22/2015] [Indexed: 02/08/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a metabolic stress-induced liver disease that is closely related not only to genetic susceptibility but also to insulin resistance and highly linked with metabolic syndrome. In recent years, the prevalence of NAFLD has increased rapidly, paralleling the epidemic of type 2 diabetes mellitus and obesity leading to cardiovascular disease. It has been demonstrated that NAFLD is highly associated with atherosclerosis. With recently gained knowledge, it appears that NAFLD may induce insulin resistance, dyslipidemia, oxidative stress, inflammation, and fluctuation of adipokines associated with atherosclerosis. In this review, we aimed to summarize recent discoveries related to both NAFLD and atherosclerosis, and to identify possible mechanisms linking them.
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Affiliation(s)
- Xin Xu
- Department of Gastroenterology, Qingdao Municipal Hospital, Dalian Medical University, Qingdao, China.,Digestive Disease Key Laboratory of Qingdao, Qingdao, China
| | - Linlin Lu
- Digestive Disease Key Laboratory of Qingdao, Qingdao, China.,Central Laboratories, Qingdao Municipal Hospital, Qingdao, China
| | - Quanyong Dong
- Department of Gastroenterology, Qingdao Municipal Hospital, Dalian Medical University, Qingdao, China.,Digestive Disease Key Laboratory of Qingdao, Qingdao, China
| | - Xiaolin Li
- Department of Gastroenterology, Qingdao Municipal Hospital, Dalian Medical University, Qingdao, China.,Digestive Disease Key Laboratory of Qingdao, Qingdao, China
| | - Nannan Zhang
- Department of Gastroenterology, Qingdao Municipal Hospital, Dalian Medical University, Qingdao, China.,Digestive Disease Key Laboratory of Qingdao, Qingdao, China
| | - Yongning Xin
- Department of Gastroenterology, Qingdao Municipal Hospital, Dalian Medical University, Qingdao, China. .,Digestive Disease Key Laboratory of Qingdao, Qingdao, China. .,Central Laboratories, Qingdao Municipal Hospital, Qingdao, China.
| | - Shiying Xuan
- Department of Gastroenterology, Qingdao Municipal Hospital, Dalian Medical University, Qingdao, China. .,Digestive Disease Key Laboratory of Qingdao, Qingdao, China. .,Central Laboratories, Qingdao Municipal Hospital, Qingdao, China.
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41
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Lin Y, Wan JQ, Gao GY, Pan YH, Ding SH, Fan YL, Wang Y, Jiang JY. Direct hippocampal injection of pseudo lentivirus-delivered nerve growth factor gene rescues the damaged cognitive function after traumatic brain injury in the rat. Biomaterials 2015; 69:148-57. [DOI: 10.1016/j.biomaterials.2015.08.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 07/31/2015] [Accepted: 08/04/2015] [Indexed: 12/22/2022]
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Chakraborty S, Pujani M, Haque SE. Combinational effect of resveratrol and atorvastatin on isoproterenol-induced cardiac hypertrophy in rats. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2015; 7:233-8. [PMID: 26229360 PMCID: PMC4517328 DOI: 10.4103/0975-7406.160037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 03/12/2015] [Accepted: 03/26/2015] [Indexed: 11/22/2022] Open
Abstract
Introduction: Resveratrol is a natural polyphenol present mainly in grapes. It has been shown to offer strong cardio protection in animal models due to its ability to correct lipid peroxidation and maintain antioxidants level. Atorvastatin, a HMG-CoA reductase inhibitor, lowers cholesterol level and is commonly prescribed to heart patients. Our aim in this study was to see the combination effect of these two drugs against Isoproterenol-induced cardiac hypertrophy in rats. Materials and Methods: Wister Albino rats were treated with resveratrol (20 mg/kg/day, p.o), atorvastatin (20 mg/kg/day, p.o) and in combination (resveratrol [10 mg/kg/day, p.o] + atorvastatin [10 mg/kg/day, p.o]) for a period of 25 days and from 15th till 25th day Isoproterenol (5 mg/kg/day, s.c) was co-administered to rats to induce cardiac hypertrophy. Results: A significant increase in creatine kinase, lactate dehydrogenase, aspartate transaminase and lipid peroxidation with the significant decrease in reduced glutathione, superoxide dismutase and catalase were observed in Isoproterenol treated rats. Resveratrol, atorvastatin and their combination significantly reversed the effect. The histopathological studies and myocardial infarct size evaluation also confirmed the protection. Conclusion: Comparing the data we came to this conclusion that atorvastatin although showed the protection along all the parameters, the extent of protection offered by resveratrol alone and in combination were more effective. Hence, it can be concluded that resveratrol, an herbal nutritional supplement, alone and in combination is better against cardiac hypertrophy.
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Affiliation(s)
- Songjukta Chakraborty
- Department of Pharmacology, Faculty of Pharmacy, Hamdard Institute of Medical Sciences and Research, Jamia Hamdard, New Delhi, India
| | - Mukta Pujani
- Department of Pathology, Hamdard Institute of Medical Sciences and Research, Jamia Hamdard, New Delhi, India
| | - Syed Ehtaishamul Haque
- Department of Pharmacology, Faculty of Pharmacy, Hamdard Institute of Medical Sciences and Research, Jamia Hamdard, New Delhi, India
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Keskin Kurt R, Dogan AC, Dogan M, Albayrak A, Kurt SN, Eren F, Silfeler DB, Karateke A, Fadillioglu E, Delibasi T. Zofenopril attenuates injury induced by ischemia-reperfusion on rat ovary. J Obstet Gynaecol Res 2014; 41:926-31. [DOI: 10.1111/jog.12658] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 11/01/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Raziye Keskin Kurt
- Department of Obstetrics and Gynecology; Mustafa Kemal University Medical School; Hatay Turkey
| | - Ayşe Citil Dogan
- Zekai Tahir Burak Women's Health Training and Research Hospital; Ankara Turkey
| | - Murat Dogan
- Department of Physiology; Hacettepe University Medical School; Ankara Turkey
| | - Aynur Albayrak
- Departments of Pathology; Ankara Diskapi YB Training and Research Hospital; Ankara Turkey
| | - Sefika Nur Kurt
- Department of Physiology; Hacettepe University Medical School; Ankara Turkey
| | - Furkan Eren
- Department of Physiology; Hacettepe University Medical School; Ankara Turkey
| | - Dilek Benk Silfeler
- Department of Obstetrics and Gynecology; Mustafa Kemal University Medical School; Hatay Turkey
| | - Atilla Karateke
- Department of Obstetrics and Gynecology; Mustafa Kemal University Medical School; Hatay Turkey
| | - Ersin Fadillioglu
- Department of Physiology; Hacettepe University Medical School; Ankara Turkey
| | - Tuncay Delibasi
- Endocrinology and Metabolism; Ankara Diskapi YB Training and Research Hospital; Ankara Turkey
- Pancreas Islet Research Center; Ankara Diskapi YB Training and Research Hospital; Ankara Turkey
- Department of Endocrinology and Metabolism; Hacettepe University Kastamonu Medical School; Ankara Turkey
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Stahl HC, Ahmadi F, Schleicher U, Sauerborn R, Bermejo JL, Amirih ML, Sakhayee I, Bogdan C, Stahl KW. A randomized controlled phase IIb wound healing trial of cutaneous leishmaniasis ulcers with 0.045% pharmaceutical chlorite (DAC N-055) with and without bipolar high frequency electro-cauterization versus intralesional antimony in Afghanistan. BMC Infect Dis 2014; 14:619. [PMID: 25420793 PMCID: PMC4258014 DOI: 10.1186/s12879-014-0619-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 11/07/2014] [Indexed: 11/21/2022] Open
Abstract
Background A previously published proof of principle phase IIa trial with 113 patients from Kabul showed that bipolar high-frequency (HF) electro-cauterization (EC) of cutaneous leishmaniasis (CL) ulcers and subsequent moist wound treatment (MWT) closed 85% of all Leishmania (L.) tropica lesions within 60 days. Methods A three-armed phase IIb, randomized and controlled clinical trial was performed in Mazar-e-Sharif. L. tropica- or L. major-infected CL patients received intradermal sodium stibogluconate (SSG) (Group I); HF-EC followed by MWT with 0.045% DAC N-055 (Group II); or MWT with 0.045% DAC N-055 in basic crème alone (Group III). The primary outcome was complete epithelialisation before day 75 after treatment start. Results 87 patients enrolled in the trial were randomized into group I (n = 24), II (n = 32) and III (n = 31). The per-protocol analysis of 69 (79%) patients revealed complete epithelialisation before day 75 in 15 (of 23; 65%) patients of Group I, in 23 (of 23; 100%) patients of Group II, and in 20 (of 23; 87%) patients of Group III (p = 0.004, Fisher’s Exact Test). In the per-protocol analysis, wound closure times were significantly different between all regimens in a pair-wise comparison (p = 0.000039, Log-Rank (Mantel-Cox) test). In the intention-to-treat analysis wound survival times in Group II were significantly different from those in Group I (p = 0.000040, Log-Rank (Mantel-Cox) test). Re-ulcerations occurred in four (17%), three (13%) and seven (30%) patients of Group I, II or III, respectively (p = 0.312, Pearson Chi-Square Test). Conclusions Treatment of CL ulcers with bipolar HF-EC followed by MWT with 0.045% DAC N-055 or with DAC N-055 alone showed shorter wound closure times than with the standard SSG therapy. The results merit further exploration in larger trials in the light of our current knowledge of in vitro and in vivo activities of chlorite. Clinicaltrials.gov ID: NCT00996463. Registered: 15th October 2009. Electronic supplementary material The online version of this article (doi:10.1186/s12879-014-0619-8) contains supplementary material, which is available to authorized users.
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Atilgan D, Parlaktas BS, Uluocak N, Erdemir F, Markoc F, Saylan O, Erkorkmaz U. The effects of trimetazidine and sildenafil on bilateral cavernosal nerve injury induced oxidative damage and cavernosal fibrosis in rats. ScientificWorldJournal 2014; 2014:970363. [PMID: 24782681 PMCID: PMC3977563 DOI: 10.1155/2014/970363] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Accepted: 03/06/2014] [Indexed: 12/02/2022] Open
Abstract
AIM The aim of this study was to compare the effects of sildenafil and trimetazidine on bilateral cavernosal nerve injury-induced oxidative damage and fibrotic changes in cavernosal tissue in rat model. MATERIAL AND METHODS A total of 32 male Sprague-Dawley rats were randomly divided into 4 groups; each group consist 8 rats (control, BCI, BCI + TMZ, and BCI + sildenafil groups). Tissue superoxide dismutase (SOD), malondialdehyde (MDA), and protein carbonyl (PC) levels were determined biochemically and distribution of cavernosal fibrosis density among groups was performed histopathologically. RESULTS Tissue SOD levels in BCI group were significantly lower than the control group (P < 0.05). Tissue MDA and PC levels in BCI group were significantly higher than the control group (P < 0.05). TMZ and sildenafil administration significantly increased tissue SOD levels (P < 0.05) and reduced tissue MDA and PC levels (P < 0.05). Histologically, the degree of cavernosal fibrosis and collagen density was higher in BCI group in comparison to control, TMZ-treated, and sildenafil-treated groups. CONCLUSION BCI caused oxidative damage and increased cavernosal fibrosis in rat penis. TMZ and sildenafil treatment decreased oxidative damage and reduced the degree of fibrosis in penile tissue due to BCI.
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Affiliation(s)
- Dogan Atilgan
- Department of Urology, Medical Faculty, Gaziosmanpasa University, 60100 Tokat, Turkey
| | - Bekir S. Parlaktas
- Department of Urology, Medical Faculty, Gaziosmanpasa University, 60100 Tokat, Turkey
| | - Nihat Uluocak
- Department of Urology, Medical Faculty, Gaziosmanpasa University, 60100 Tokat, Turkey
| | - Fikret Erdemir
- Department of Urology, Medical Faculty, Gaziosmanpasa University, 60100 Tokat, Turkey
| | - Fatma Markoc
- Department of Pathology, Medical Faculty, Gaziosmanpasa University, 60100 Tokat, Turkey
| | - Oguzhan Saylan
- Department of Biochemistry, Medical Faculty, Gaziosmanpasa University, 60100 Tokat, Turkey
| | - Unal Erkorkmaz
- Department of Biostatistics, Medical Faculty, Gaziosmanpasa University, 60100 Tokat, Turkey
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Thankam FG, Muthu J. Biosynthetic alginate–polyester hydrogels with inherent free radical scavenging activity promote cellular response. J BIOACT COMPAT POL 2013. [DOI: 10.1177/0883911513508670] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The prevention of deleterious effects of reactive oxygen species on the cell growth by biosynthetic hydrogels based on alginate–polyester copolymer was studied using H2O2 as the model ROS molecule. Chemically cross-linked biosynthetic hydrogels of alginate- co-poly(propylene fumarate)–n-butyl methacrylate, alginate- co-poly(propylene fumarate)–methyl methacrylate, alginate- co-poly(propylene fumarate)–2-hydroxyethyl methacrylate, and alginate- co-poly(propylene fumarate)– N,N′-methylene bisacrylamide with different biostabilities were prepared. We found that they were able to resist reactive oxygen species penetration into the cell to a greater extent which was evident from the live/dead assay, and increased intracellular glutathione levels compared to the H2O2-treated control. The hydrogels maintained the genomic integrity which was confirmed by comet assay. The inherent protective effects of these hydrogels without any antioxidant moiety may be mediated by dual mechanism: (a) prevention of migration of H2O2 into the cells by calcium-induced conformational changes and rigidity in phospholipids present in the surface membrane of cells by the calcium generated from degradation of hydrogel and (b) by the dilution of H2O2 by the free water in the hydrogel. These hydrogels have potential as injectable hydrogels to manage myocardial infarction and ischemia.
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Affiliation(s)
- Finosh G Thankam
- Polymer Science Division, BMT Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India
| | - Jayabalan Muthu
- Polymer Science Division, BMT Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India
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Kovač J, Macedoni Lukšič M, Trebušak Podkrajšek K, Klančar G, Battelino T. Rare single nucleotide polymorphisms in the regulatory regions of the superoxide dismutase genes in autism spectrum disorder. Autism Res 2013; 7:138-44. [PMID: 24155217 DOI: 10.1002/aur.1345] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Accepted: 09/17/2013] [Indexed: 12/13/2022]
Abstract
Oxidative stress is suspected to be one of the several contributing factors in the etiology of autism spectrum disorder (ASD). We analyzed genes of the superoxide dismutase family (SOD1, SOD2, and SOD3) that are part of a major antioxidative stress system in human in order to detect the genetic variants contributing to the development of ASD. Using the optimized high-resolution melting (HRM) analysis, we identified two rare single nucleotide polymorphisms (SNPs) associated with the etiology of ASD. Both are located in the superoxide dismutase 1 (SOD1) gene and have a minor allele frequency in healthy population ~5%. The SNP c.239 + 34A>C (rs2234694) and SNP g.3341C>G (rs36233090) were detected with an odds ratio of 2.65 and P < 0.01. Both are located in the noncoding potentially regulatory regions of the SOD1 gene. This adds to the importance of rare SNPs in the etiology of complex diseases as well as to the importance of noncoding genetic variants analysis with a potential influence on the regulation of gene expression.
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Affiliation(s)
- Jernej Kovač
- Department of Endocrinology, Diabetes and Metabolic Diseases, UMC Ljubljana, University Children's Hospital, Ljubljana, Slovenia
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Atilgan D, Parlaktas BS, Uluocak N, Erdemir F, Kilic S, Erkorkmaz U, Ozyurt H, Markoc F. Weight loss and melatonin reduce obesity-induced oxidative damage in rat testis. Adv Urol 2013; 2013:836121. [PMID: 24089609 PMCID: PMC3780536 DOI: 10.1155/2013/836121] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Accepted: 08/07/2013] [Indexed: 01/23/2023] Open
Abstract
Aim. We aimed to evaluate the antioxidant effects of weight loss and melatonin on the obesity-induced oxidative damage in rat testes. Materials and Methods. 28 male Wistar albino rats were randomly divided into 4 groups, each consisting of 7 rats: control group (Group 1), obesity group (Group 2), obesity + MLT group (Group 3), and weight loss group (Group 4). Rats were weighed at the beginning and at the end of the study. Bilateral orchiectomy was performed and 5 cc blood samples were obtained from all of the rats. Superoxide dismutase (SOD), malondialdehyde (MDA), and protein carbonyl (PC) levels were analysed in the testicular tissues and serum. Spermatogenesis was evaluated with the Johnsen scoring system. Results. The testicular tissue and serum levels of MDA, PC, and SOD activity were increased in the obesity group in comparison to the sham operated group (P < 0.05). Weight loss and melatonin treatment ameliorated MDA, PC, and SOD levels in testicular tissue and serum significantly (P < 0.05). There was no significant difference between groups in terms of mean Johnsen score (P = 0.727). Conclusion. Experimentally created obesity caused oxidative stress and both melatonin and weight loss reduced oxidative stress parameters in rat testes.
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Affiliation(s)
- Dogan Atilgan
- Gaziosmanpasa University, Faculty of Medicine, Department of Urology, 60100 Tokat, Turkey
| | - Bekir S. Parlaktas
- Gaziosmanpasa University, Faculty of Medicine, Department of Urology, 60100 Tokat, Turkey
| | - Nihat Uluocak
- Gaziosmanpasa University, Faculty of Medicine, Department of Urology, 60100 Tokat, Turkey
| | - Fikret Erdemir
- Gaziosmanpasa University, Faculty of Medicine, Department of Urology, 60100 Tokat, Turkey
| | - Sahin Kilic
- Gaziosmanpasa University, Faculty of Medicine, Department of Urology, 60100 Tokat, Turkey
| | - Unal Erkorkmaz
- Sakarya University, Faculty of Medicine, Department of Biostatistics and Medical informatics, 54100 Sakarya, Turkey
| | - Huseyin Ozyurt
- Gaziosmanpasa University, Faculty of Medicine, Department of Biochemistry, 60100 Tokat, Turkey
| | - Fatma Markoc
- Gaziosmanpasa University, Faculty of Medicine, Department of Pathology, 60100 Tokat, Turkey
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Craciunescu O, Constantin D, Gaspar A, Toma L, Utoiu E, Moldovan L. Evaluation of antioxidant and cytoprotective activities of Arnica montana L. and Artemisia absinthium L. ethanolic extracts. Chem Cent J 2012; 6:97. [PMID: 22958433 PMCID: PMC3472325 DOI: 10.1186/1752-153x-6-97] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Accepted: 08/23/2012] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Arnica montana L. and Artemisia absinthium L. (Asteraceae) are medicinal plants native to temperate regions of Europe, including Romania, traditionally used for treatment of skin wounds, bruises and contusions. In the present study, A. montana and A. absinthium ethanolic extracts were evaluated for their chemical composition, antioxidant activity and protective effect against H2O2-induced oxidative stress in a mouse fibroblast-like NCTC cell line. RESULTS A. absinthium extract showed a higher antioxidant capacity than A. montana extract as Trolox equivalent antioxidant capacity, Oxygen radical absorbance capacity and 2,2-diphenyl-1-picrylhydrazyl free radical-scavenging activity, in correlation with its flavonoids and phenolic acids content. Both plant extracts had significant effects on the growth of NCTC cells in the range of 10-100 mg/L A. montana and 10-500 mg/L A. absinthium. They also protected fibroblast cells against hydrogen peroxide-induced oxidative damage, at the same doses. The best protection was observed in cell pre-treatment with 10 mg/L A. montana and 10-300 mg/L A. absinthium, respectively, as determined by Neutral red and lactate dehydrogenase assays. In addition, cell pre-treatment with plant extracts, at these concentrations, prevented morphological changes induced by hydrogen peroxide. Flow-cytometry analysis showed that pre-treatment with A. montana and A. absinthium extracts restored the proportion of cells in each phase of the cell cycle. CONCLUSIONS A. montana and A. absinthium extracts, rich in flavonoids and phenolic acids, showed a good antioxidant activity and cytoprotective effect against oxidative damage in fibroblast-like cells. These results provide scientific support for the traditional use of A. montana and A. absinthium in treatment of skin disorders.
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Affiliation(s)
- Oana Craciunescu
- Department of Cellular and Molecular Biology, National Institute of Research and Development for Biological Sciences, 296, Splaiul Independentei, 060031, Bucharest, Romania
| | - Daniel Constantin
- Department of Cellular and Molecular Biology, National Institute of Research and Development for Biological Sciences, 296, Splaiul Independentei, 060031, Bucharest, Romania
| | - Alexandra Gaspar
- Department of Cellular and Molecular Biology, National Institute of Research and Development for Biological Sciences, 296, Splaiul Independentei, 060031, Bucharest, Romania
| | - Liana Toma
- Department of Cellular and Molecular Biology, National Institute of Research and Development for Biological Sciences, 296, Splaiul Independentei, 060031, Bucharest, Romania
| | - Elena Utoiu
- Department of Cellular and Molecular Biology, National Institute of Research and Development for Biological Sciences, 296, Splaiul Independentei, 060031, Bucharest, Romania
| | - Lucia Moldovan
- Department of Cellular and Molecular Biology, National Institute of Research and Development for Biological Sciences, 296, Splaiul Independentei, 060031, Bucharest, Romania
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Noblanc A, Kocer A, Drevet JR. [Post-testicular protection of male gametes from oxidative damage. The role of the epididymis]. Med Sci (Paris) 2012; 28:519-25. [PMID: 22643006 DOI: 10.1051/medsci/2012285017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Spermatozoa leave the testis in an immature functional state and are devoid of self defense mechanisms. They will become motile and ready to fertilize only after their descent and their progressive maturation within the epididymal tubule. The epididymis also ensures the survival and the protection of male gametes while they go through the epididymis and during their storage in between two ejaculations. Amongst common stresses that concern spermatozoa, oxidative stress occupies a peculiar and dual position. While the events of epididymal sperm maturation necessitate a given level of oxidation, spermatozoa are particularly sensitive to oxidative damage. A fine balance between beneficial oxidation versus detrimental oxidative damage has to be maintained in the epididymal environment. Antioxidant enzymes of the glutathione peroxidase family play a key role in controling such a situation in the epididymis.
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Affiliation(s)
- Anaïs Noblanc
- Laboratoire génétique, reproduction et développement (GReD), CNRS UMR 6293, Clermont Université, Inserm U1103, 24, avenue des Landais, 63177 Aubière Cedex, France
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