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Zhu Q, Long Q, Wei C, Chen J, Nong L, Qin J, Huang Z, Zheng Y, Li S. Lactate dehydrogenase-1 may play a key role in the brain energy disturbance caused by cryptococcal meningitis. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2024:S1684-1182(24)00153-1. [PMID: 39214781 DOI: 10.1016/j.jmii.2024.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 08/14/2024] [Accepted: 08/19/2024] [Indexed: 09/04/2024]
Abstract
BACKGROUND Cryptococcal meningitis (CM) may affect the conversion of lactate to pyruvate in the brain, resulting in abnormal levels of adenosine triphosphate (ATP) throughout the brain. Lactate conversion to pyruvate is mainly caused by lactic dehydrogenase 1 (LDH1), which is composed of four LDHB subunits. However, the underlying mechanism of LDH1 in CM remains unclear. METHODS Cerebrospinal fluid (CSF) from 17 patients was collected, including eight patients with non-infectious diseases of the central nervous system and nine patients with CM. Based on clinical data and laboratory reports, data regarding intracranial pressure, CSF white cell counts, lactate dehydrogenase (LDH), adenosine deaminase, glucose, protein, and chloridion were collected. Meanwhile, LDH1, LDH5, lactate, pyruvate, and ATP levels were detected in CSF. Whereafter, the levels of lactate, pyruvate, ATP, and the amplitude and frequency of action potentials in the neurons with low expression of LDHB were explored. RESULTS Intracranial pressure and white cell count in CSF were significantly increased in patients with CM. In patients with CM, the LDH1, pyruvate, and ATP levels in the CSF were significantly decreased, and the levels of lactate were found to be increased. Furthermore, pyruvate and ATP levels were decreased, while lactate was increased in the neurons with low expression of LDHB. The amplitude and frequency of APs in the neurons with low expression of LDHB were significantly decreased. CONCLUSION Reduced levels of LDH1 in the brain of patients with CM may lead to increased lactate levels, decreased pyruvate and ATP levels, and negatively affect neuronal activity.
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Affiliation(s)
- Qingdong Zhu
- Department of Tuberculosis, Guangxi AlDs Clinical Treatment Center (Nanning)/The Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - Qian Long
- Key Laboratory of Infectious Diseases of Nanning Municipal Health Commission, Guangxi AlDs Clinical Treatment Center (Nanning)/The Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - Cailing Wei
- Infectious Disease Laboratory, Guangxi AlDs Clinical Treatment Center (Nanning)/The Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - Jieling Chen
- Infectious Disease Laboratory, Guangxi AlDs Clinical Treatment Center (Nanning)/The Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - Lanwei Nong
- Infectious Disease Laboratory, Guangxi AlDs Clinical Treatment Center (Nanning)/The Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - Jianglong Qin
- Department of Infectious Disease, Guangxi AlDs Clinical Treatment Center (Nanning)/The Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - Zhizhong Huang
- Department of Liver, Guangxi AlDs Clinical Treatment Center (Nanning)/The Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - Yanqing Zheng
- Infectious Disease Laboratory, Guangxi AlDs Clinical Treatment Center (Nanning)/The Fourth People's Hospital of Nanning, Nanning, Guangxi, China.
| | - Sijun Li
- Infectious Disease Laboratory, Guangxi AlDs Clinical Treatment Center (Nanning)/The Fourth People's Hospital of Nanning, Nanning, Guangxi, China; Department of Internal Medicine, Guangxi AlDs Clinical Treatment Center (Nanning)/The Fourth People's Hospital of Nanning, Nanning, Guangxi, China.
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Dietary Supplementation of Chestnut Tannins in Prepartum Dairy Cows Improves Antioxidant Defense Mechanisms Interacting with Thyroid Status. Metabolites 2023; 13:metabo13030334. [PMID: 36984774 PMCID: PMC10058744 DOI: 10.3390/metabo13030334] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/16/2023] [Accepted: 02/22/2023] [Indexed: 02/26/2023] Open
Abstract
Cows in the peripartal period undergo changes in thyroid hormones and are susceptible to lipomobilization and/or oxidative stress. The addition of chestnut tannins as polyphenolic compounds in the diet may improve feed efficiency and prevent oxidative stress-related health disorders in transition cows. However, the relationship between chestnut tannin supplementation and thyroid function, which plays an important role in metabolic regulation, has not been investigated in dairy cows. This study was conducted to investigate the effects of chestnut tannin supplementation during the close-up period on thyroid status and to evaluate the interaction between thyroid hormones and oxidative stress biomarkers in prepartum dairy cows. Forty multiparous Holstein cows were fed either a diet containing chestnut tannins (CNTs, n = 20, 1.96 g chestnut tannins/kg feed, dry matter) or a non-supplemented diet (CON, n = 20) during the last 25 ± 2 days of gestation. Blood samples were collected on the first day of study (before chestnut tannin supplementation) and d 5 before parturition to measure hormonal and oxidative stress indices. Serum concentrations of T3 (p = 0.04) and T4 (p = 0.05) were higher in CNT cows than in the CON group on day 5 before parturition. Thyroid status of CNT cows was associated with higher serum total antioxidant capacity (T-AOC, p < 0.01), activities of superoxide dismutase (SOD, p = 0.03) and glutathione peroxidase (GPx, p = 0.01), and reduced glutathione concentration (GSH, p = 0.05). Serum thiobarbituric acid reactive substances (TBARS) were lower (p = 0.04) which was associated with lower aspartate aminotransferase (AST, p = 0.02), and lactate dehydrogenase (LDH, p = 0.01) activities in the CNT than in the CON group. Estradiol and progesterone did not differ between CNT and CON cows. Chestnut tannin supplementation improves antioxidant protection, prevents oxidation-reduction processes, reduces the degree of liver cell membrane damage, and protects thyroid tissue from damage, allowing higher T3 and T4 synthesis. Considering the importance of the thyroid hormone status before parturition, mechanisms of thyroid hormone regulation in CNT-supplemented dairy cows require more detailed investigations.
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Djelić N, Borozan S, Dimitrijević-Srećković V, Pajović N, Mirilović M, Stopper H, Stanimirović Z. Oxidative Stress and DNA Damage in Peripheral Blood Mononuclear Cells from Normal, Obese, Prediabetic and Diabetic Persons Exposed to Thyroid Hormone In Vitro. Int J Mol Sci 2022; 23:ijms23169072. [PMID: 36012352 PMCID: PMC9409385 DOI: 10.3390/ijms23169072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/08/2022] [Accepted: 08/08/2022] [Indexed: 11/17/2022] Open
Abstract
Diabetes, a chronic group of medical disorders characterized byhyperglycemia, has become a global pandemic. Some hormones may influence the course and outcome of diabetes, especially if they potentiate the formation of reactive oxygen species (ROS). There is a close relationship between thyroid disorders and diabetes. The main objective of this investigation was to find out whether peripheral blood mononuclear cells (PBMCs) are more prone to DNA damage by triiodothyronine (T3) (0.1, 1 and 10 μM) at various stages of progression through diabetes (obese, prediabetics, and type 2 diabetes mellitus—T2DM persons). In addition, some biochemical parameters of oxidative stress (catalase-CAT, thiobarbituric acid reactive substances—TBARS) and lactate dehydrogenase (LDH) were evaluated. PBMCs from prediabetic and diabetic patients exhibited increased sensitivity for T3 regarding elevated level of DNA damage, inhibition of catalase, and increase of TBARS and LDH. PBMCs from obese patients reacted in the same manner, except for DNA damage. The results of this study should contribute to a better understanding of the role of thyroid hormones in the progression of T2DM.
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Affiliation(s)
- Ninoslav Djelić
- Department of Biology, Faculty of Veterinary Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Correspondence:
| | - Sunčica Borozan
- Department of Chemistry, Faculty of Veterinary Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | | | - Nevena Pajović
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Milorad Mirilović
- Department of Economics and Statistics, Faculty of Veterinary Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Helga Stopper
- Institute of Pharmacology and Toxicology, University of Würzburg, 97070 Würzburg, Germany
| | - Zoran Stanimirović
- Department of Biology, Faculty of Veterinary Medicine, University of Belgrade, 11000 Belgrade, Serbia
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Proshkina E, Shaposhnikov M, Moskalev A. Genome-Protecting Compounds as Potential Geroprotectors. Int J Mol Sci 2020; 21:E4484. [PMID: 32599754 PMCID: PMC7350017 DOI: 10.3390/ijms21124484] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/18/2020] [Accepted: 06/19/2020] [Indexed: 02/06/2023] Open
Abstract
Throughout life, organisms are exposed to various exogenous and endogenous factors that cause DNA damages and somatic mutations provoking genomic instability. At a young age, compensatory mechanisms of genome protection are activated to prevent phenotypic and functional changes. However, the increasing stress and age-related deterioration in the functioning of these mechanisms result in damage accumulation, overcoming the functional threshold. This leads to aging and the development of age-related diseases. There are several ways to counteract these changes: 1) prevention of DNA damage through stimulation of antioxidant and detoxification systems, as well as transition metal chelation; 2) regulation of DNA methylation, chromatin structure, non-coding RNA activity and prevention of nuclear architecture alterations; 3) improving DNA damage response and repair; 4) selective removal of damaged non-functional and senescent cells. In the article, we have reviewed data about the effects of various trace elements, vitamins, polyphenols, terpenes, and other phytochemicals, as well as a number of synthetic pharmacological substances in these ways. Most of the compounds demonstrate the geroprotective potential and increase the lifespan in model organisms. However, their genome-protecting effects are non-selective and often are conditioned by hormesis. Consequently, the development of selective drugs targeting genome protection is an advanced direction.
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Affiliation(s)
- Ekaterina Proshkina
- Laboratory of Geroprotective and Radioprotective Technologies, Institute of Biology, Komi Science Centre, Ural Branch, Russian Academy of Sciences, 28 Kommunisticheskaya st., 167982 Syktyvkar, Russia; (E.P.); (M.S.)
| | - Mikhail Shaposhnikov
- Laboratory of Geroprotective and Radioprotective Technologies, Institute of Biology, Komi Science Centre, Ural Branch, Russian Academy of Sciences, 28 Kommunisticheskaya st., 167982 Syktyvkar, Russia; (E.P.); (M.S.)
| | - Alexey Moskalev
- Laboratory of Geroprotective and Radioprotective Technologies, Institute of Biology, Komi Science Centre, Ural Branch, Russian Academy of Sciences, 28 Kommunisticheskaya st., 167982 Syktyvkar, Russia; (E.P.); (M.S.)
- Pitirim Sorokin Syktyvkar State University, 55 Oktyabrsky prosp., 167001 Syktyvkar, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
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Martini CN, Sosa FN, Fuchs J, Vila MDC. Effect of lead on proliferation, oxidative stress and genotoxic damage of 3T3-L1 fibroblasts. Toxicol Res (Camb) 2020; 9:158-163. [PMID: 32670547 DOI: 10.1093/toxres/tfaa018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 03/04/2020] [Accepted: 04/07/2020] [Indexed: 11/14/2022] Open
Abstract
Lead (Pb) is an environmental and industrial contaminant that still represents a public health problem. In this paper, we investigated the effect of Pb on proliferation, lipid peroxidation and the number of micronucleated cells in exponentially growing 3T3-L1 fibroblasts, a cell line previously used to evaluate different environmental contaminants. We found that Pb (10 μM or higher) was able to inhibit proliferation of exponentially growing cells after 24-h treatment, which was evaluated by the MTT assay and cell counting in Neubauer chamber, but cell survival was not affected according to the trypan blue exclusion assay. On the other hand, Pb was able to increase lipid peroxidation and the number of micronucleated cells, which are indicative of oxidative stress and genotoxic damage respectively. We also found that removal of Pb after 24-h treatment allowed cells to recover proliferation. Our results indicate that Pb was able to induce oxidative stress and genotoxicity in this cell line under standardized conditions, which supports the involvement of Pb in similar effects observed in human exposed to this heavy metal. In addition, Pb inhibits proliferation of exponentially growing fibroblasts but cells resume proliferation after removal of this metal, which suggests that it is important to move away Pb-exposed individuals from the source of contamination.
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Affiliation(s)
- Claudia Noemi Martini
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, 1428 Buenos Aires, Argentina
| | - Fernando Nicolás Sosa
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, 1428 Buenos Aires, Argentina
| | - Julio Fuchs
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - María Del Carmen Vila
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
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Djelić N, Radaković M, Borozan S, Dimirijević-Srećković V, Pajović N, Vejnović B, Borozan N, Bankoglu EE, Stopper H, Stanimirović Z. Oxidative stress and DNA damage in peripheral blood mononuclear cells from normal, obese, prediabetic and diabetic persons exposed to adrenaline in vitro. Mutat Res 2019; 843:81-89. [PMID: 31421743 DOI: 10.1016/j.mrgentox.2019.01.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 01/18/2019] [Accepted: 01/23/2019] [Indexed: 01/08/2023]
Abstract
Diabetes represents one of the major health concerns, especially in developed countries. Some hormones such as the stress hormone adrenaline can induce reactive oxygen species (ROS) and may worsen the diabetes. Therefore, the main aim of the investigation was to find out whether peripheral blood mononuclear cells (PBMCs) from normal persons have less DNA damage induced by adrenaline (0.1, 1 and 10 μM) in comparison to PBMCs from obese, prediabetic and diabetic patients. Also, the biochemical parameters of oxidative stress (TBARS, catalase) and lactate dehydrogenase were monitored. It was observed that higher concentrations of adrenaline (1 and 10 μM) induced DNA damage in the obese, prediabetic and diabetic groups. In healthy individuals only the highest concentration of adrenaline caused significant increase in the DNA damage. In summary, total comet score (TCS) comparison has shown significant differences between groups, and DNA damaging effects of adrenaline were most evident in diabetic patients. The results of the biochemical analysis also demonstrate that adrenaline exerts most obvious effects in diabetic individuals which is manifested as significant change of parameters of oxidative stress. In summary, the obtained results demonstrated that diabetics are more sensitive to genotoxic effects of adrenaline and this effect probably resulted from decreased antioxidative defence mechanisms in various stages of progression through diabetes. Therefore, these results could contribute to a better understanding of a role of endocrine factors to damage of cellular biomolecules which could be useful in finding novel therapeutic approaches and lifestyle changes with an aim to lower the possibility of diabetes complications.
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Affiliation(s)
- Ninoslav Djelić
- Department of Biology, Faculty of Veterinary Medicine, University of Belgrade, Serbia.
| | - Milena Radaković
- Department of Biology, Faculty of Veterinary Medicine, University of Belgrade, Serbia.
| | - Sunčica Borozan
- Department of Chemistry, Faculty of Veterinary Medicine, University of Belgrade, Serbia.
| | | | - Nevena Pajović
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, Clinical Center of Serbia, Belgrade, Serbia.
| | - Branislav Vejnović
- Department of Economics and Statistics, Faculty of Veterinary Medicine, University of Belgrade, Serbia.
| | | | - Ezgi Eylül Bankoglu
- Institute of Pharmacology and Toxicology, University of Würzburg, Würzburg, Germany.
| | - Helga Stopper
- Institute of Pharmacology and Toxicology, University of Würzburg, Würzburg, Germany.
| | - Zoran Stanimirović
- Department of Biology, Faculty of Veterinary Medicine, University of Belgrade, Serbia.
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Carvalho RB, Carneiro MFH, Barbosa F, Batista BL, Simonetti J, Amantéa SL, Rhoden CR. The impact of occupational exposure to traffic-related air pollution among professional motorcyclists from Porto Alegre, Brazil, and its association with genetic and oxidative damage. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:18620-18631. [PMID: 29704180 DOI: 10.1007/s11356-018-2007-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 04/11/2018] [Indexed: 05/22/2023]
Abstract
Vehicles play an important role in modern life; however, they also generate hazards. Occupational exposed subjects are in long-term contact with harmful products, which sets these professionals in a susceptible group to air pollutant damage. The aims of this study were to quantify individual exposure to pollutant gases and chemical elements and to evaluate oxidative and genetic damage in professional motorcyclists and office workers. We recruited professional motorcyclists and office workers from Porto Alegre, Brazil, between January and December 2016. Individual exposure to air pollutants was assessed by passive monitoring. Fingernail trace elements were determined by using inductively coupled plasma mass spectrometry. Oxidative stress biomarkers were quantified spectrophotometrically, and genotoxicity was evaluated by micronuclei assay. Individual exposure to NO2 and O3, trace element content (Sb, Pt, As, Cd, V, Mn, and Co), oxidative stress factors, and genetic damage were statistically higher in professional motorcyclists (p < 0.05). Moreover, NO2 and O3 levels showed very strong positive correlation with plasmatic lipid peroxidation (p < 0.001 and r = 0.8849 and 0.8995) and strong positive correlation with micronuclei frequency (p < 0.001 and r = 0.7683 and 0.7280). Results suggest that professional motorcyclists are at high risk due to long-term air pollution exposure, which implies in the onset of several harmful effects and worsening of pre-existent diseases.
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Affiliation(s)
- Roseana Böek Carvalho
- Laboratory of Atmospheric Pollution, Federal University of Health Sciences of Porto Alegre (UCSPA), Graduate Program in Health Sciences, Rua Sarmento Leite, 245, Porto Alegre, RS, 90050-170, Brazil.
| | - Maria Fernanda Hornos Carneiro
- Laboratory of Toxicology and Metals Essentiality, Faculty of Pharmaceutical Sciences of Ribeirão Preto, Sao Paulo University (USP), São Paulo, Brazil
| | - Fernando Barbosa
- Laboratory of Toxicology and Metals Essentiality, Faculty of Pharmaceutical Sciences of Ribeirão Preto, Sao Paulo University (USP), São Paulo, Brazil
| | - Bruno Lemos Batista
- Center for Natural Sciences and Humanities, Federal University of ABC (UFABC), Ribeirão Preto, Brazil
| | - Júlia Simonetti
- Laboratory of Atmospheric Pollution, Federal University of Health Sciences of Porto Alegre (UCSPA), Graduate Program in Health Sciences, Rua Sarmento Leite, 245, Porto Alegre, RS, 90050-170, Brazil
| | - Sergio Luis Amantéa
- Santo Antônio Hospital, Federal University of Health Sciences of Porto Alegre (UCSPA), Graduate Program in Health Sciences, Porto Alegre, Brazil
| | - Cláudia Ramos Rhoden
- Laboratory of Atmospheric Pollution, Federal University of Health Sciences of Porto Alegre (UCSPA), Graduate Program in Health Sciences, Rua Sarmento Leite, 245, Porto Alegre, RS, 90050-170, Brazil
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Čabarkapa A, Dekanski D, Živković L, Milanović-Čabarkapa M, Bajić V, Topalović D, Giampieri F, Gasparrini M, Battino M, Spremo-Potparević B. Unexpected effect of dry olive leaf extract on the level of DNA damage in lymphocytes of lead intoxicated workers, before and after CaNa 2 EDTA chelation therapy. Food Chem Toxicol 2017; 106:616-623. [DOI: 10.1016/j.fct.2016.12.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 11/07/2016] [Accepted: 12/19/2016] [Indexed: 02/04/2023]
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Rationale for the Successful Management of EDTA Chelation Therapy in Human Burden by Toxic Metals. BIOMED RESEARCH INTERNATIONAL 2016; 2016:8274504. [PMID: 27896275 PMCID: PMC5118545 DOI: 10.1155/2016/8274504] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 08/31/2016] [Accepted: 09/18/2016] [Indexed: 12/22/2022]
Abstract
Exposure to environmental and occupational toxicants is responsible for adverse effects on human health. Chelation therapy is the only procedure able to remove toxic metals from human organs and tissue, aiming to treat damage related to acute and/or chronic intoxication. The present review focuses on the most recent evidence of the successful use of the chelating agent ethylenediaminetetraacetic acid (EDTA). Assessment of toxic-metal presence in humans, as well as the rationale of EDTA therapy in cardiovascular and neurodegenerative diseases, is reported.
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