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Tang R, Hu Y, Zhou J, Wang X, Li X, Heianza Y, Qi L. Smoking Timing, Healthy Diet, and Risk of Incident CKD Among Smokers: Findings From UK Biobank. Am J Kidney Dis 2024:S0272-6386(24)00809-6. [PMID: 38909935 DOI: 10.1053/j.ajkd.2024.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 03/22/2024] [Accepted: 04/08/2024] [Indexed: 06/25/2024]
Abstract
RATIONALE & OBJECTIVE Although smoking is a recognized risk factor for chronic kidney disease (CKD), the relationship between the time smoking is initiated after awakening each day and CKD remains largely unstudied. This study examined the association between this timing and the risk of CKD, and the potential interactions of smoking timing with other risk factors for the occurrence of CKD. STUDY DESIGN Observational cohort study. SETTING & PARTICIPANTS A total of 32,776 participants in the UK Biobank with complete data on the time from waking to the first cigarette and free of prevalent CKD were included. EXPOSURE Time from waking to the first cigarette. OUTCOME Incident CKD cases. ANALYTICAL APPROACH Cox proportional hazards regression was used to investigate the associations between the time smoking is initiated each day and the risk of CKD. The potential interactions of smoking timing with risk factors in relationship to CKD risk were assessed on both multiplicative and additive scales. RESULTS During a median follow-up period of 12 years, 940 incident CKD cases occurred. Shorter durations of time from waking to the first cigarette were associated with a higher risk of incident CKD (P trend=0.01). Compared with>120 minutes, the adjusted hazard ratio (HR) associated with smoking timing was 1.28 (95% CI, 0.92-1.80) for 61-120 minutes, 1.48 (95% CI, 1.11-1.96) for 30-60 minutes, 1.36 (95% CI, 1.01-1.88) for 5-15 minutes, and 1.70 (95% CI, 1.22-2.37) for<5 minutes, respectively. Furthermore, there was a significant additive interaction and multiplicative interactions between the timing of smoking and a healthy diet score (P for additive interaction=0.01; P for multiplicative interaction = 0.004). LIMITATIONS Generalizability, possible residual confounding, limiting causal inference. CONCLUSIONS These findings reveal a significant association between the shorter time from waking to the first cigarette and a higher CKD risk. The magnitude of these associations was greater in the setting of an unhealthy diet. PLAIN-LANGUAGE SUMMARY This study explored the association of the daily timing of first cigarette smoking and the occurrence of kidney disease. Further, we addressed whether this association was influenced by the quality of the diet. The study found that smoking very soon after waking, especially when combined with a poorer quality diet, was associated with a significantly increased risk of developing chronic kidney disease. This research emphasizes the value of healthier lifestyle choices for kidney health.
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Affiliation(s)
- Rui Tang
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
| | - Ying Hu
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
| | - Jian Zhou
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
| | - Xuan Wang
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
| | - Xiang Li
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
| | - Yoriko Heianza
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana
| | - Lu Qi
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana; Department of Nutrition, T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts.
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Çakıcı ÖU, Dinçer S. The effect of amino acids on the bladder cycle: a concise review. Amino Acids 2021; 54:13-31. [PMID: 34853916 DOI: 10.1007/s00726-021-03113-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 11/25/2021] [Indexed: 11/26/2022]
Abstract
The human bladder maintains a cycle of filling, storing, and micturating throughout an individual's lifespan. The cycle relies on the ability of the bladder to expand without increasing the intravesical pressure, which is only possible with the controlled relaxation of well-complaint muscles and the congruously organized construction of the bladder wall. A competent bladder outlet, which functions in a synchronous fashion with the bladder, is also necessary for this cycle to be completed successfully without deterioration. In this paper, we aimed to review the contemporary physiological findings on bladder physiology and examine the effects of amino acids on clinical conditions affecting the bladder, with special emphasis on the available therapeutic evidence and possible future roles of the amino acids in the treatment of the bladder-related disorders.
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Affiliation(s)
- Özer Ural Çakıcı
- Attending Urologist, Private Practice, Ankara, Turkey.
- PhD Candidate in Physiology, Department of Physiology, Gazi University, Ankara, Turkey.
| | - Sibel Dinçer
- Professor in Physiology, Department of Physiology, Gazi University, Ankara, Turkey
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Baliou S, Adamaki M, Ioannou P, Pappa A, Panayiotidis MI, Spandidos DA, Christodoulou I, Kyriakopoulos AM, Zoumpourlis V. Protective role of taurine against oxidative stress (Review). Mol Med Rep 2021; 24:605. [PMID: 34184084 PMCID: PMC8240184 DOI: 10.3892/mmr.2021.12242] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/03/2021] [Indexed: 12/14/2022] Open
Abstract
Taurine is a fundamental mediator of homeostasis that exerts multiple roles to confer protection against oxidant stress. The development of hypertension, muscle/neuro‑associated disorders, hepatic cirrhosis, cardiac dysfunction and ischemia/reperfusion are examples of some injuries that are linked with oxidative stress. The present review gives a comprehensive description of all the underlying mechanisms of taurine, with the aim to explain its anti‑oxidant actions. Taurine is regarded as a cytoprotective molecule due to its ability to sustain normal electron transport chain, maintain glutathione stores, upregulate anti‑oxidant responses, increase membrane stability, eliminate inflammation and prevent calcium accumulation. In parallel, the synergistic effect of taurine with other potential therapeutic modalities in multiple disorders are highlighted. Apart from the results derived from research findings, the current review bridges the gap between bench and bedside, providing mechanistic insights into the biological activity of taurine that supports its potential therapeutic efficacy in clinic. In the future, further clinical studies are required to support the ameliorative effect of taurine against oxidative stress.
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Affiliation(s)
- Stella Baliou
- National Hellenic Research Foundation, 11635 Athens, Greece
| | - Maria Adamaki
- National Hellenic Research Foundation, 11635 Athens, Greece
| | - Petros Ioannou
- Department of Internal Medicine and Infectious Diseases, University Hospital of Heraklion, 71110 Heraklion, Greece
| | - Aglaia Pappa
- Department of Molecular Biology and Genetics, Faculty of Health Sciences, Democritus University of Thrace, 68100 Alexandroupolis, Greece
| | - Mihalis I. Panayiotidis
- Department of Cancer Genetics, Therapeutics and Ultrastructural Pathology, The Cyprus Institute of Neurology and Genetics, 2371 Nicosia, Cyprus
- The Cyprus School of Molecular Medicine, 2371 Nicosia, Cyprus
| | - Demetrios A. Spandidos
- Department of Internal Medicine and Infectious Diseases, University Hospital of Heraklion, 71110 Heraklion, Greece
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Urinary Taurine Excretion and Risk of Late Graft Failure in Renal Transplant Recipients. Nutrients 2019; 11:nu11092212. [PMID: 31540245 PMCID: PMC6770760 DOI: 10.3390/nu11092212] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/07/2019] [Accepted: 09/11/2019] [Indexed: 12/29/2022] Open
Abstract
Taurine is a sulfur containing nutrient that has been shown to protect against oxidative stress, which has been implicated in the pathophysiology leading to late graft failure after renal transplantation. We prospectively investigated whether high urinary taurine excretion, reflecting high taurine intake, is associated with low risk for development of late graft failure in renal transplant recipients (RTR). Urinary taurine excretion was measured in a longitudinal cohort of 678 stable RTR. Prospective associations were assessed using Cox regression analyses. Graft failure was defined as the start of dialysis or re-transplantation. In RTR (58% male, 53 ± 13 years old, estimated glomerular filtration rate (eGFR) 45 ± 19 mL/min/1.73 m2), urinary taurine excretion (533 (210–946) µmol/24 h) was significantly associated with serum free sulfhydryl groups (β = 0.126; P = 0.001). During median follow-up for 5.3 (4.5–6.0) years, 83 (12%) patients developed graft failure. In Cox regression analyses, urinary taurine excretion was inversely associated with graft failure (hazard ratio: 0.74 (0.67–0.82); P < 0.001). This association remained significant independent of potential confounders. High urinary taurine excretion is associated with low risk of late graft failure in RTR. Therefore, increasing taurine intake may potentially support graft survival in RTR. Further studies are warranted to determine the underlying mechanisms and the potential of taurine supplementation.
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Al-Sawalha NA, AlSari RR, Khabour OF, Alzoubi KH. Influence of prenatal waterpipe tobacco smoke exposure on renal biomarkers in adult offspring rats. Inhal Toxicol 2019; 31:171-179. [DOI: 10.1080/08958378.2019.1624897] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Nour A. Al-Sawalha
- Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Riham R. AlSari
- Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Omar F. Khabour
- Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
| | - Karem H. Alzoubi
- Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
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Choi MJ, Jung YJ. Effects of Taurine and Vitamin D on Antioxidant Enzyme Activity and Lipids Profiles in Rats Fed Diet Deficient Calcium. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 975 Pt 2:1081-1092. [PMID: 28849524 DOI: 10.1007/978-94-024-1079-2_86] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Calcium deficiency is a worldwide problem affecting both developed and developing countries. The deficiency in calcium leads to a marked decrease of superoxide dismutase. It is known that vitamin D protects cells against oxidative damages while taurine plays an anti-inflammatory and antioxidant role. In this study, we examined whether vitamin D and taurine supplementation had a protective effect on oxidative stress in rats fed calcium deficient diet. Female SD rats (mean weight 60 ∼ 70 g) were divided into four groups; control, taurine, vitamin D, taurine + vitamin D for 6 weeks (taurine: 2 g/100 g diet, vitamin D: 0.5 mg/100 g diet). We then analyzed the level of triglyceride (TG), total cholesterol (TC), LDL-cholesterol (LDL-C), HDL-cholesterol (HDL-C) in serum and level of TC, TG in liver. We investigated antioxidative enzyme activities such as catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px). We observed that weight gain was not significantly different in the experimental groups. Food efficiency ratio (FER) was significantly higher in the normal control group than the taurine and vitamin D groups (p < 0.05). The level of liver TC was significantly lower in taurine, vitamin D, taurine + vitamin D groups than control group (p < 0.05). The concentration of malondialdehyde (MDA) was significantly lower in the taurine group than the control group. The activity of SOD was higher in taurine group than other experimental groups (p < 0.05), but GSH-Px and CAT were not significantly different. In conclusion, taurine has a positive effect on SOD activity but not on vitamin D. Also taurine and vitamin D have a protective effect as observed in liver TC in rats fed with a diet which lacks calcium.
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Affiliation(s)
- Mi-Ja Choi
- Department of Food and Nutrition, Keimyung University, Daegu, South Korea.
| | - Yun-Jung Jung
- Department of Food and Nutrition, Keimyung University, Daegu, South Korea
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Motaghinejad M, Motevalian M, Fatima S, Faraji F, Mozaffari S. The Neuroprotective Effect of Curcumin Against Nicotine-Induced Neurotoxicity is Mediated by CREB–BDNF Signaling Pathway. Neurochem Res 2017; 42:2921-2932. [DOI: 10.1007/s11064-017-2323-8] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 05/16/2017] [Accepted: 06/02/2017] [Indexed: 12/19/2022]
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8
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Abdel-Wahab WM, Moussa FI, Saad NA. Synergistic protective effect of N-acetylcysteine and taurine against cisplatin-induced nephrotoxicity in rats. Drug Des Devel Ther 2017; 11:901-908. [PMID: 28356716 PMCID: PMC5367759 DOI: 10.2147/dddt.s131316] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Cisplatin (cis-diaminedichloroplatinum II; CDDP) is an effective anticancer drug, but it has limitations because of its nephrotoxicity. This study investigates the protective effect of N-acetylcysteine (NAC) and taurine (TAU), both individually and in combination, against CDDP nephrotoxicity in rats. For this purpose, 48 male rats were assigned into eight groups (n=6) as follows: 1) control group, 2) NAC group, 3) TAU group, 4) NAC-TAU group, 5) CDDP group, 6) CDDP-NAC group, 7) CDDP-TAU group, and 8) CDDP-NAC-TAU group. Cisplatin was administered as a single intraperitoneal injection at a concentration of 6 mg/kg. Three days after CDDP administration, NAC (50 mg/kg) and/or TAU (50 mg/kg) were administered three times weekly for four consecutive weeks. Kidney function markers in serum, urinary glucose and protein, as well as oxidant and antioxidant parameters in renal tissue were assessed. Administration of CDDP significantly elevated urinary glucose and protein, as well as serum creatinine, urea, and uric acid. Moreover, CDDP enhanced lipid peroxidation and suppressed the major enzymatic antioxidants in the kidney tissue. Treatment with NAC or TAU protected against the alterations in the serum, urine, and renal tissue when used individually along with CDDP. Furthermore, a combined therapy of both was more effective in ameliorating CDDP-induced nephrotoxicity, which points out to their synergistic effect.
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Affiliation(s)
- Wessam M Abdel-Wahab
- Department of Biology, College of Medicine, University of Dammam, Dammam, Saudi Arabia
- Department of Zoology, Faculty of Science, University of Alexandria, Alexandria, Egypt
| | - Farouzia I Moussa
- Department of Zoology, Faculty of Science, University of Alexandria, Alexandria, Egypt
| | - Najwa A Saad
- Department of Zoology, Faculty of Science, University of Benghazi, Benghazi, Libya
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9
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Yousef HN, Aboelwafa HR. The potential protective role of taurine against 5-fluorouracil-induced nephrotoxicity in adult male rats. ACTA ACUST UNITED AC 2017; 69:265-274. [PMID: 28189472 DOI: 10.1016/j.etp.2017.01.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 12/05/2016] [Accepted: 01/31/2017] [Indexed: 12/26/2022]
Abstract
Nephrotoxicity is common with the use of the chemotherapeutic agent 5-Fluorouracil (5-FU). The current study aimed to investigate the probable protective effect of taurine (TAU) against 5-FU-induced nephrotoxicity in rats using biochemical, histological and ultrastructural approaches. Twenty-four rats were equally divided into control, TAU, 5-FU and 5-FU+TAU groups. 5-FU significantly elevated levels of blood urea nitrogen (BUN), creatinine, and uric acid; while it reduced activities of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px). Also, 5-FU induced significant elevation in malondialdehyde (MDA) levels accompanied with marked decline in γ-glutamyltranspeptidase (GGT) and alkaline phosphatase (AP) levels in kidney tissues. These biochemical alterations were accompanied by histopathological changes marked by destruction of the normal renal structure, in addition to ultrastructural alterations represented by thickened and irregular glomerular basement membranes, congested glomerular capillaries, damaged lining fenestrated endothelium, mesangial cells hyperplasia with expanded mesangial matrix, and distorted podocyte's processes. Also, the proximal (PCT) and distal (DCT) convoluted tubules showed thickened basement membranes, destructed apical microvilli and loss of basal infoldings of their epithelial cells. Administration of TAU to 5-FU-treated rats reversed most of the biochemical, histological, and ultrastructural alterations. These results indicate that TAU has a protective effect against 5-FU-induced nephrotoxicity.
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Affiliation(s)
- Hany N Yousef
- Department of Biological and Geological Sciences, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt.
| | - Hanaa R Aboelwafa
- Department of Biological and Geological Sciences, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt
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Coenzyme Q10 protects renal proximal tubule cells against nicotine-induced apoptosis through induction of p66shc-dependent antioxidant responses. Apoptosis 2016; 22:220-228. [DOI: 10.1007/s10495-016-1309-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Protective effect of Eruca sativa seed oil against oral nicotine induced testicular damage in rats. Tissue Cell 2016; 48:340-8. [DOI: 10.1016/j.tice.2016.05.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 03/29/2016] [Accepted: 05/25/2016] [Indexed: 01/22/2023]
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12
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Golli NE, Dallagi Y, Rahali D, Rejeb I, Fazaa SE. Neurobehavioral assessment following e-cigarette refill liquid exposure in adult rats. Toxicol Mech Methods 2016; 26:435-42. [DOI: 10.1080/15376516.2016.1193585] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Narges El Golli
- Department of Biology, Faculty of Sciences, LMBA, El Manar University, Tunis, Tunisia
| | - Yosra Dallagi
- Department of Biology, Faculty of Sciences, LMBA, El Manar University, Tunis, Tunisia
| | - Dalila Rahali
- Department of Biology, Faculty of Sciences, LMBA, El Manar University, Tunis, Tunisia
| | - Ines Rejeb
- Department of Biology, Faculty of Sciences, LMBA, El Manar University, Tunis, Tunisia
| | - Saloua El Fazaa
- Department of Biology, Faculty of Sciences, LMBA, El Manar University, Tunis, Tunisia
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Golli NE, Jrad-Lamine A, Neffati H, Dkhili H, Rahali D, Dallagi Y, El May MV, El Fazaa S. Impact of e-cigarette refill liquid exposure on rat kidney. Regul Toxicol Pharmacol 2016; 77:109-16. [DOI: 10.1016/j.yrtph.2016.02.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 02/21/2016] [Accepted: 02/22/2016] [Indexed: 11/25/2022]
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El Golli N, Rahali D, Jrad-Lamine A, Dallagi Y, Jallouli M, Bdiri Y, Ba N, Lebret M, Rosa J, El May M, El Fazaa S. Impact of electronic-cigarette refill liquid on rat testis. Toxicol Mech Methods 2016; 26:427-34. [DOI: 10.3109/15376516.2016.1163448] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- N. El Golli
- Department of Biology, LMBA (Laboratoire de Microbiologie et Molécules Actives), Faculty of Sciences, El Manar University, Tunis, Tunisia,
| | - D. Rahali
- Department of Biology, LMBA (Laboratoire de Microbiologie et Molécules Actives), Faculty of Sciences, El Manar University, Tunis, Tunisia,
| | - A. Jrad-Lamine
- Department of Biology, LMBA (Laboratoire de Microbiologie et Molécules Actives), Faculty of Sciences, El Manar University, Tunis, Tunisia,
| | - Y. Dallagi
- Department of Biology, LMBA (Laboratoire de Microbiologie et Molécules Actives), Faculty of Sciences, El Manar University, Tunis, Tunisia,
| | - M. Jallouli
- Department of Biology, LMBA (Laboratoire de Microbiologie et Molécules Actives), Faculty of Sciences, El Manar University, Tunis, Tunisia,
| | - Y. Bdiri
- Department of Biology, LMBA (Laboratoire de Microbiologie et Molécules Actives), Faculty of Sciences, El Manar University, Tunis, Tunisia,
| | - N. Ba
- INSERM US32, Kremlin-Bicêtre Hospital, Bicêtre, France,
| | - M. Lebret
- INSERM U1176, Kremlin-Bicêtre Hospital, Bicêtre, France, and
| | - J.P. Rosa
- INSERM U1176, Kremlin-Bicêtre Hospital, Bicêtre, France, and
| | - M. El May
- Laboratory of Histology-Embryology and Cell Biology, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - S. El Fazaa
- Department of Biology, LMBA (Laboratoire de Microbiologie et Molécules Actives), Faculty of Sciences, El Manar University, Tunis, Tunisia,
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Akkoyun HT, Karadeniz A. Investigation of the protective effect of ellagic acid for preventing kidney injury in rats exposed to nicotine during the fetal period. Biotech Histochem 2015; 91:108-15. [PMID: 26529089 DOI: 10.3109/10520295.2015.1078910] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
We investigated the possible protective effects of ellagic acid on rat kidneys exposed to nicotine during the fetal period. Twenty pregnant female rats were divided randomly into four groups: control (C), nicotine (N), ellagic acid (EA) and nicotine + ellagic acid (N + EA). Nicotine and ellagic acid treatments were continued throughout the pregnancies and for 15 days after delivery. On day 15, all neonatal pups were sacrificed and their kidneys were removed for biochemical and histopathological examination. The nicotine treatment significantly decreased body weight, total glutathione (GSH), glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) activities, and increased malondialdehyde (MDA) and nitric oxide (NO) levels in the N group compared to controls. EA treatment ameliorated decreased body weight, GSH, GSH-Px and SOD activities, and increased MDA and NO levels in group N + EA compared to group N (p < 0.05). Nicotine caused kidney damage as shown by incomplete development of glomeruli and Bowman's capsules. Nicotine also caused greater apoptosis in group N compared to group C. Ellagic acid treatment produced histological kidney structure that was closer to normal and it exerted an anti-apoptotic effect in the N + EA group compared to the N group. EA played a protective role against nicotine-induced nephrotoxicity and oxidative stress in rats owing to its antioxidant, radical scavenging and anti-apoptotic effects.
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Affiliation(s)
- H T Akkoyun
- a Siirt University, Faculty of Veterinary , Department of Physiology , Siirt , Turkey
| | - A Karadeniz
- b Balıkesir University, Faculty of Medicine , Department of Physiology , Balıkesir , Turkey
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Ahmad MK, Khan AA, Ali SN, Mahmood R. Chemoprotective effect of taurine on potassium bromate-induced DNA damage, DNA-protein cross-linking and oxidative stress in rat intestine. PLoS One 2015; 10:e0119137. [PMID: 25748174 PMCID: PMC4352022 DOI: 10.1371/journal.pone.0119137] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Accepted: 01/21/2015] [Indexed: 12/18/2022] Open
Abstract
Potassium bromate (KBrO3) is widely used as a food additive and is a major water disinfection by-product. It induces multiple organ toxicity in humans and experimental animals and is a probable human carcinogen. The present study reports the protective effect of dietary antioxidant taurine on KBrO3-induced damage to the rat intestine. Animals were randomly divided into four groups: control, KBrO3 alone, taurine alone and taurine+ KBrO3. Administration of KBrO3 alone led to decrease in the activities of intestinal brush border membrane enzymes while those of antioxidant defence and carbohydrate metabolism were also severely altered. There was increase in DNA damage and DNA-protein cross-linking. Treatment with taurine, prior to administration of KBrO3, resulted in significant attenuation in all these parameters but the administration of taurine alone had no effect. Histological studies supported these biochemical results showing extensive intestinal damage in KBrO3-treated animals and greatly reduced tissue injury in the taurine+ KBrO3 group. These results show that taurine ameliorates bromate induced tissue toxicity and oxidative damage by improving the antioxidant defence, tissue integrity and energy metabolism. Taurine can, therefore, be potentially used as a therapeutic/protective agent against toxicity of KBrO3 and related compounds.
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Affiliation(s)
- Mir Kaisar Ahmad
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Aijaz Ahmed Khan
- Department of Anatomy, Faculty of Medicine, J. N. Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Shaikh Nisar Ali
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Riaz Mahmood
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
- * E-mail:
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Taurine protects HK-2 cells from oxidized LDL-induced cytotoxicity via the ROS-mediated mitochondrial and p53-related apoptotic pathways. Toxicol Appl Pharmacol 2014; 279:351-363. [DOI: 10.1016/j.taap.2014.06.029] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 06/06/2014] [Accepted: 06/24/2014] [Indexed: 11/19/2022]
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Ahmad MK, Khan AA, Mahmood R. Taurine ameliorates potassium bromate-induced kidney damage in rats. Amino Acids 2013; 45:1109-21. [DOI: 10.1007/s00726-013-1563-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Accepted: 07/16/2013] [Indexed: 11/24/2022]
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Singh VP, Singh N, Jaggi AS. A review on renal toxicity profile of common abusive drugs. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2013; 17:347-57. [PMID: 23946695 PMCID: PMC3741492 DOI: 10.4196/kjpp.2013.17.4.347] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 06/25/2013] [Accepted: 07/14/2013] [Indexed: 12/22/2022]
Abstract
Drug abuse has become a major social problem of the modern world and majority of these abusive drugs or their metabolites are excreted through the kidneys and, thus, the renal complications of these drugs are very common. Morphine, heroin, cocaine, nicotine and alcohol are the most commonly abused drugs, and their use is associated with various types of renal toxicity. The renal complications include a wide range of glomerular, interstitial and vascular diseases leading to acute or chronic renal failure. The present review discusses the renal toxicity profile and possible mechanisms of commonly abused drugs including morphine, heroin, cocaine, nicotine, caffeine and alcohol.
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Affiliation(s)
- Varun Parkash Singh
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala-147002, India
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20
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Shen M, Lin F, Zhang J, Tang Y, Chen WK, Liu H. Involvement of the up-regulated FoxO1 expression in follicular granulosa cell apoptosis induced by oxidative stress. J Biol Chem 2012; 287:25727-40. [PMID: 22669940 DOI: 10.1074/jbc.m112.349902] [Citation(s) in RCA: 134] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Follicular atresia is common in female mammalian ovaries, where most follicles undergo degeneration at any stage of growth and development. Oxidative stress gives rise to triggering granulosa cell apoptosis, which has been suggested as a major cause of follicular atresia. However, the underlying mechanism by which the oxidative stress induces follicular atresia remains unclear. FoxO transcription factors are known as critical mediators in the regulation of oxidative stress and apoptosis. In this study, the involvement of FoxO1 in oxidative stress-induced apoptosis of mouse follicular granulosa cells (MGCs) was investigated in vivo and in vitro. It was observed that increased apoptotic signals correlated with elevated expression of FoxO1 in MGCs when mice were treated with the oxidant. Correspondingly, the expressions of FoxO1 target genes, such as proapoptotic genes and antioxidative genes, were also up-regulated. In primary cultured MGCs, treatment with H(2)O(2) led to FoxO1 nuclear translocation. Further studies with overexpression and knockdown of FoxO1 demonstrated the critical role of FoxO1 in the induction of MGC apoptosis by oxidative stress. Finally, inactivation of FoxO1 by insulin treatment confirmed that FoxO1 induced by oxidative stress played a pivotal role in up-regulating the expression of downstream apoptosis-related genes in MGCs. Our results suggest that up-regulation of FoxO1 by oxidative stress leads to apoptosis of granulosa cells, which eventually results in follicular atresia in mice.
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Affiliation(s)
- Ming Shen
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
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Ozden S, Catalgol B, Gezginci-Oktayoglu S, Karatug A, Bolkent S, Alpertunga B. Acute effects of methiocarb on oxidative damage and the protective effects of vitamin E and taurine in the liver and kidney of Wistar rats. Toxicol Ind Health 2012; 29:60-71. [PMID: 22623520 DOI: 10.1177/0748233712446719] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Methiocarb (MC) is a widely used carbamate pesticide in agriculture and health programs. Although the main molecular mechanism of carbamate toxicity involves acetylcholinesterase inhibition, studies have also implicated the induction of oxidative stress. Therefore, the present study was aimed to evaluate the effect of acute MC exposure on lipid peroxidation, antioxidant defense systems, histological changes in Wistar rats and the protective effect of pretreatment with vitamin E and taurine. A total of 48 rats were randomly divided into six groups. Rats in group I were given corn oil, while those in group III were dosed with vitamin E (100 mg/kg body weight (b.w.)) and in group V were dosed with taurine (50 mg/kg b.w.). Rats in group II were administered with MC only (25 mg/kg b.w., 1/4 of median lethal dose (LD(50))), while those in groups IV and VI were pretreated with vitamin E (100 mg/kg b.w.) and taurine (50 mg/kg b.w.) for 20 days, respectively, and then exposed to MC (25 mg/kg b.w.). The rats administered with MC showed significant increase in the levels of malondialdehyde in the liver and kidney as an index of lipid peroxidation. Levels of glutathione and activities of superoxide dismutase, catalase and glutathione peroxidase were significantly increased, while activity of glutathione reductase remained unchanged in both the tissues after MC treatment. Mild degenerative histological changes were observed in liver tissue, while the changes in kidney tissue were more severe then liver after MC treatment. Pretreatment with vitamin E and taurine resulted in a significant decrease in the lipid peroxidation and alleviating effects on antioxidant defense systems in both the tissues, while protective effects on the histological changes were shown only in kidney when compared with liver. In conclusion, the study has demonstrated that the acute MC exposure in Wistar rats caused oxidative damage on liver and kidney, which were partly ameliorated by the pretreatment of vitamin E and taurine.
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Affiliation(s)
- Sibel Ozden
- Department of Pharmaceutical Toxicology, Istanbul University, Beyazit, Istanbul, Turkey
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Christophersen OA. Radiation protection following nuclear power accidents: a survey of putative mechanisms involved in the radioprotective actions of taurine during and after radiation exposure. MICROBIAL ECOLOGY IN HEALTH AND DISEASE 2012; 23:14787. [PMID: 23990836 PMCID: PMC3747764 DOI: 10.3402/mehd.v23i0.14787] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Accepted: 11/18/2011] [Indexed: 12/28/2022]
Abstract
There are several animal experiments showing that high doses of ionizing radiation lead to strongly enhanced leakage of taurine from damaged cells into the extracellular fluid, followed by enhanced urinary excretion. This radiation-induced taurine depletion can itself have various harmful effects (as will also be the case when taurine depletion is due to other causes, such as alcohol abuse or cancer therapy with cytotoxic drugs), but taurine supplementation has been shown to have radioprotective effects apparently going beyond what might be expected just as a consequence of correcting the harmful consequences of taurine deficiency per se. The mechanisms accounting for the radioprotective effects of taurine are, however, very incompletely understood. In this article an attempt is made to survey various mechanisms that potentially might be involved as parts of the explanation for the overall beneficial effect of high levels of taurine that has been found in experiments with animals or isolated cells exposed to high doses of ionizing radiation. It is proposed that taurine may have radioprotective effects by a combination of several mechanisms: (1) during the exposure to ionizing radiation by functioning as an antioxidant, but perhaps more because it counteracts the prooxidant catalytic effect of iron rather than functioning as an important scavenger of harmful molecules itself, (2) after the ionizing radiation exposure by helping to reduce the intensity of the post-traumatic inflammatory response, and thus reducing the extent of tissue damage that develops because of severe inflammation rather than as a direct effect of the ionizing radiation per se, (3) by functioning as a growth factor helping to enhance the growth rate of leukocytes and leukocyte progenitor cells and perhaps also of other rapidly proliferating cell types, such as enterocyte progenitor cells, which may be important for immunological recovery and perhaps also for rapid repair of various damaged tissues, especially in the intestines, and (4) by functioning as an antifibrogenic agent. A detailed discussion is given of possible mechanisms involved both in the antioxidant effects of taurine, in its anti-inflammatory effects and in its role as a growth factor for leukocytes and nerve cells, which might be closely related to its role as an osmolyte important for cellular volume regulation because of the close connection between cell volume regulation and the regulation of protein synthesis as well as cellular protein degradation. While taurine supplementation alone would be expected to exert a therapeutic effect far better than negligible in patients that have been exposed to high doses of ionizing radiation, it may on theoretical grounds be expected that much better results may be obtained by using taurine as part of a multifactorial treatment strategy, where it may interact synergistically with several other nutrients, hormones or other drugs for optimizing antioxidant protection and minimizing harmful posttraumatic inflammatory reactions, while using other nutrients to optimize DNA and tissue repair processes, and using a combination of good diet, immunostimulatory hormones and perhaps other nontoxic immunostimulants (such as beta-glucans) for optimizing the recovery of antiviral and antibacterial immune functions. Similar multifactorial treatment strategies may presumably be helpful in several other disease situations (including severe infectious diseases and severe asthma) as well as for treatment of acute intoxications or acute injuries (both mechanical ones and severe burns) where severely enhanced oxidative and/or nitrative stress and/or too much secretion of vasodilatory neuropeptides from C-fibres are important parts of the pathogenetic mechanisms that may lead to the death of the patient. Some case histories (with discussion of some of those mechanisms that may have been responsible for the observed therapeutic outcome) are given for illustration of the likely validity of these concepts and their relevance both for treatment of severe infections and non-infectious inflammatory diseases such as asthma and rheumatoid arthritis.
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Nagasawa Y, Yamamoto R, Rakugi H, Isaka Y. Cigarette smoking and chronic kidney diseases. Hypertens Res 2011; 35:261-5. [DOI: 10.1038/hr.2011.205] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Arany I, Grifoni S, Clark JS, Csongradi E, Maric C, Juncos LA. Chronic nicotine exposure exacerbates acute renal ischemic injury. Am J Physiol Renal Physiol 2011; 301:F125-33. [PMID: 21511693 DOI: 10.1152/ajprenal.00041.2011] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Recent epidemiological reports showed that smoking has a negative impact on renal function and elevates the renal risk not only in the renal patient but perhaps also in the healthy population. Studies suggested that nicotine, a major tobacco alkaloid, links smoking to renal dysfunction. While several studies showed that smoking/chronic nicotine exposure exacerbates the progression of chronic renal diseases, its impact on acute kidney injury is virtually unknown. Here, we studied the effects of chronic nicotine exposure on acute renal ischemic injury. We found that chronic nicotine exposure increased the extent of renal injury induced by warm ischemia-reperfusion as evidenced by morphological changes, increase in plasma creatinine level, and kidney injury molecule-1 expression. We also found that chronic nicotine exposure elevated markers of oxidative stress such as nitrotyrosine as well as malondialdehyde. Interestingly, chronic nicotine exposure alone increased oxidative stress and injury in the kidney without morphological alterations. Chronic nicotine treatment not only increased reactive oxygen species (ROS) production and injury but also exacerbated oxidative stress-induced ROS generation through NADPH oxidase and mitochondria in cultured renal proximal tubule cells. The resultant oxidative stress provoked injury through JNK-mediated activation of the activator protein (AP)-1 transcription factor in vitro. This mechanism might exist in vivo as phosphorylation of JNK and its downstream target c-jun, a component of the AP-1 transcription factor, is elevated in the ischemic kidneys exposed to chronic nicotine. Our results imply that smoking may sensitize the kidney to ischemic insults and perhaps facilitates progression of acute kidney injury to chronic kidney injury.
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Affiliation(s)
- Istvan Arany
- Dept. of Pediatrics, Div. of Pediatric Nephrology, University of Mississippi Medical Center, Research Wing Rm. R127, 2500 N. State St., Jackson, MS 39216, USA.
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Shalby AB, Assaf N, Ahmed HH. Possible mechanisms for N-acetyl cysteine and taurine in ameliorating acute renal failure induced by cisplatin in rats. Toxicol Mech Methods 2011; 21:538-46. [DOI: 10.3109/15376516.2011.568985] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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26
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Jana K, Samanta PK, De DK. Nicotine Diminishes Testicular Gametogenesis, Steroidogenesis, and Steroidogenic Acute Regulatory Protein Expression in Adult Albino Rats: Possible Influence on Pituitary Gonadotropins and Alteration of Testicular Antioxidant Status. Toxicol Sci 2010; 116:647-59. [DOI: 10.1093/toxsci/kfq149] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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27
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Kim KY, Lee YJ, Chung BC, Hong J, Jung BH. Relations between toxicity and altered tissue distribution and urinary excretion of nicotine, cotinine, and hydroxycotinine after chronic oral administration of nicotine in rats. Drug Chem Toxicol 2010; 33:166-72. [DOI: 10.3109/01480540903196832] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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28
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Taurine modulates neutrophil function but potentiates uropathogenic E. coli infection in the murine bladder. ACTA ACUST UNITED AC 2009; 38:215-22. [DOI: 10.1007/s00240-009-0235-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2009] [Accepted: 11/04/2009] [Indexed: 10/20/2022]
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29
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Maritz GS. Are nicotine replacement therapy, varenicline or bupropion options for pregnant mothers to quit smoking? Effects on the respiratory system of the offspring. Ther Adv Respir Dis 2009; 3:193-210. [PMID: 19706643 DOI: 10.1177/1753465809343712] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Nicotine occurs in tobacco smoke. It is a habit-forming substance and is prescribed by health professionals to assist smokers to quit smoking. It is rapidly absorbed from the lungs of smokers. It crosses the placenta and accumulates in the developing fetus. Nicotine induces formation of oxygen radicals and at the same time also reduces the antioxidant capacity of the lungs. Nicotine and the oxidants cause point mutations in the DNA molecule thereby changing the program that controls lung growth and maintenance of lung structure. The data available indicate that maternal nicotine exposure induces a persistent inhibition of glycolysis and a drastically increased AMP level. These metabolic changes are thought to contribute to the faster aging of the lungs of the offspring of mothers that are exposed to nicotine via the placenta and mother's milk. The lungs of these animals are more susceptible to damage as shown by the gradual deterioration of the lung parenchyma. The rapid metabolic and structural aging of the lungs of the animals exposed to nicotine via the placenta and mother's milk, and thus during phases of lung development characterized by rapid cell division, is likely due to 'programming' induced by nicotine. Since varenicline, a partial nicotine agonist, has basically the same structure as nicotine, and also binds to acetylcholine receptors in competition with nicotine (but with largely the same effect), it is not advisable to use nicotine or varenicline during gestation and lactation. Furthermore, the use of individual vitamin supplements is also not advisable because of the negative impact on the program that controls maintenance of lung structural and functional integrity and aging. A more appropriate smoking cessation program will also include a mixture of antioxidant nutrients such as in tomato juice.
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Affiliation(s)
- Gert S Maritz
- Department of Medical Biosciences, University of the Western Cape, Bellville, South Africa.
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30
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Wang L, Zhang L, Yu Y, Wang Y, Niu N. The Protective Effects of Taurine against Early Renal Injury in STZ-Induced Diabetic Rats, Correlated with Inhibition of Renal LOX-1-Mediated ICAM-1 Expression. Ren Fail 2009; 30:763-71. [DOI: 10.1080/08860220802272563] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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31
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Taurine protected kidney from oxidative injury through mitochondrial-linked pathway in a rat model of nephrolithiasis. ACTA ACUST UNITED AC 2009; 37:211-20. [PMID: 19513707 DOI: 10.1007/s00240-009-0197-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2008] [Accepted: 05/21/2009] [Indexed: 10/20/2022]
Abstract
Hyperoxaluria and crystal deposition induce oxidative stress (OS) and renal epithelial cells injury, both mitochondria and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase are considered as the main sources of reactive oxygen species (ROS). Taurine is known to have antioxidant activity and shows renoprotective effect. We investigate the effect of taurine treatment on renal protection, and the putative source of ROS, in a rat model of calcium oxalate nephrolithiasis. Rats were administered with 2.5% (V/V) ethylene glycol + 2.5% (W/V) ammonium chloride (4 ml/day), with restriction on intake of drinking water (20 ml/day) for 4 weeks. Simultaneous treatment with taurine (2% W/W, mixed with the chow) was performed. At the end of the study, indexes of OS and renal injury were assessed. Renal tubular ultrastructure changes were analyzed under transmission electron microscopy. Crystal deposition in kidney was scored under light microscopy. Angiotensin II in kidney homogenates was determined by radioimmunoassay. Expression of NADPH oxidase subunits p47phox and Nox-4 mRNAs in kidney was evaluated by real time-polymerase chain reaction. The data showed that oxidative injury of the kidney occurred in nephrolithiasis-induced rats. Hyperplasia of mitochondria developed in renal tubular epithelium. The activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in mitochondria decreased and the mitochondrial membrane showed oxidative injury. Taurine treatment alleviated the oxidative injury of the kidney, improved SOD and GSH-Px activities, as well as the mitochondrial membrane injury, with lesser crystal depositions in the kidney. We could not detect statistical changes in the renal angiotensin II level, and the renal p47phox and Nox-4 mRNAs expression in those rats. The results suggest that mitochondria but not NADPH oxidase may account for the OS and taurine protected kidney from oxidative injury through mitochondrial-linked pathway in this rat model.
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Methiocarb-induced oxidative damage following subacute exposure and the protective effects of vitamin E and taurine in rats. Food Chem Toxicol 2009; 47:1676-84. [PMID: 19394395 DOI: 10.1016/j.fct.2009.04.018] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2008] [Revised: 03/15/2009] [Accepted: 04/15/2009] [Indexed: 11/20/2022]
Abstract
Methiocarb, is used worldwide in agriculture and health programs. Besides its advantages in the agriculture, it causes several toxic effects. In this study, we aimed to investigate subacute effects of methiocarb on lipid peroxidation, reduced glutathione (GSH), antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px) and glutathione reductase (GSH-Rd) and histopathological changes in rat tissues. Moreover, we examined the possible protective effects of vitamin E and taurine on methiocarb-induced oxidative damage in rat tissues. Rats were randomly divided into six groups as follows; I-control group; II-methiocarb group; III-vitamin E group; IV-vitamin E+methiocarb group; V-taurine group and VI-taurine+methiocarb group. Methiocarb significantly increased lipid peroxidation in liver and kidney when compared to control groups. Levels of GSH and activities of SOD, CAT and GSH-Px were found to be decreased, while GSH-Rd remained unchanged in rat liver and kidney treated with methiocarb. Pretreatment of vitamin E and taurine resulted in a significant decrease on lipid peroxidation, alleviating effects on GSH and antioxidant enzymes. The degenerative histological changes were less in liver than kidney of rats treated with methiocarb. Pretreatment of vitamin E and taurine showed a protective effect on the histological changes in kidney comparing to the liver of rats treated with methiocarb.
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Li MD, Wang J. Neuroproteomics and its applications in research on nicotine and other drugs of abuse. Proteomics Clin Appl 2007; 1:1406-27. [PMID: 21136639 DOI: 10.1002/prca.200700321] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2007] [Indexed: 12/24/2022]
Abstract
The rapidly growing field of neuroproteomics is able to track changes in protein expression and protein modifications underlying various physiological conditions, including the neural diseases related to drug addiction. Thus, it presents great promise in characterizing protein function, biochemical pathways, and networks to understand the mechanisms underlying drug dependence. In this article, we first provide an overview of proteomics technologies and bioinformatics tools available to analyze proteomics data. Then we summarize the recent applications of proteomics to profile the protein expression pattern in animal or human brain tissues after the administration of nicotine, alcohol, amphetamine, butorphanol, cocaine, and morphine. By comparing the protein expression profiles in response to chronic nicotine exposure with those appearing in response to treatment with other drugs of abuse, we identified three biological processes that appears to be regulated by multiple drugs of abuse: energy metabolism, oxidative stress response, and protein degradation and modification. Such similarity indicates that despite the obvious differences among their chemical properties and the receptors with which they interact, different substances of abuse may cause some similar changes in cellular activities and biological processes in neurons.
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Affiliation(s)
- Ming D Li
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, VA, USA.
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34
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Kim BH, Oh JM, Yun KU, Kim CH, Kim SK. Methods for Evaluation of Antioxidant Activity: Application to Taurine. Toxicol Res 2007. [DOI: 10.5487/tr.2007.23.3.263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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35
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Sadis C, Teske G, Stokman G, Kubjak C, Claessen N, Moore F, Loi P, Diallo B, Barvais L, Goldman M, Florquin S, Le Moine A. Nicotine protects kidney from renal ischemia/reperfusion injury through the cholinergic anti-inflammatory pathway. PLoS One 2007; 2:e469. [PMID: 17520028 PMCID: PMC1867857 DOI: 10.1371/journal.pone.0000469] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2007] [Accepted: 04/29/2007] [Indexed: 11/19/2022] Open
Abstract
Kidney ischemia/reperfusion injury (I/R) is characterized by renal dysfunction and tubular damages resulting from an early activation of innate immunity. Recently, nicotine administration has been shown to be a powerful inhibitor of a variety of innate immune responses, including LPS-induced toxaemia. This cholinergic anti-inflammatory pathway acts via the α7 nicotinic acetylcholine receptor (α7nAChR). Herein, we tested the potential protective effect of nicotine administration in a mouse model of renal I/R injury induced by bilateral clamping of kidney arteries. Renal function, tubular damages and inflammatory response were compared between control animals and mice receiving nicotine at the time of ischemia. Nicotine pretreatment protected mice from renal dysfunction in a dose-dependent manner and through the α7nAChR, as attested by the absence of protection in α7nAChR-deficient mice. Additionally, nicotine significantly reduced tubular damages, prevented neutrophil infiltration and decreased productions of the CXC-chemokine KC, TNF-α and the proinflammatory high-mobility group box 1 protein. Reduced tubular damage in nicotine pre-treated mice was associated with a decrease in tubular cell apoptosis and proliferative response as attested by the reduction of caspase-3 and Ki67 positive cells, respectively. All together, these data highlight that nicotine exerts a protective anti-inflammatory effect during kidney I/R through the cholinergic α7nAChR pathway. In addition, this could provide an opportunity to overcome the effect of surgical cholinergic denervation during kidney transplantation.
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Affiliation(s)
- Claude Sadis
- Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
- Department of Anesthesiology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Gwen Teske
- Department of Pathology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Geurt Stokman
- Department of Pathology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Carole Kubjak
- Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Nike Claessen
- Department of Pathology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Fabrice Moore
- Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Patrizia Loi
- Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
| | | | - Luc Barvais
- Department of Anesthesiology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Michel Goldman
- Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Sandrine Florquin
- Department of Pathology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Alain Le Moine
- Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
- * To whom correspondence should be addressed. E-mail:
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Zeybek A, Sağlam B, Cikler E, Cetinel S, Ercan F, Sener G. Taurine ameliorates stress-induced degeneration of the urinary bladder. Acta Histochem 2007; 109:208-14. [PMID: 17287017 DOI: 10.1016/j.acthis.2006.12.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2006] [Revised: 12/04/2006] [Accepted: 12/05/2006] [Indexed: 10/23/2022]
Abstract
We studied the potential effects of taurine, a free radical scavenger, on chronic water avoidance stress (WAS)-induced degeneration of the mucosa of the urinary bladder in experimental rats. Wistar albino rats were exposed to WAS for 2h/day, for 5 days (WAS group). Before exposing them to WAS, taurine (50mg/kg) (WAS+taurine group) was injected intraperitonally into the animals. Samples of urinary bladder were then investigated by light and scanning electron microscopy. Lipid peroxidation and gluthathione levels were also measured in the urinary bladder. In the WAS-only group, inflammatory cell infiltration, increased number of mast cells in the mucosa and ulcerated areas were observed. In the WAS+taurine group, relatively normal urothelial topography with microvilli, moderate inflammatory cell infiltration and decreased numbers of mast cells in the mucosa were observed. The increased lipid peroxidation and decreased glutathione levels in WAS rats were reversed by taurine treatment. We conclude that taurine protects against WAS-induced oxidant urinary bladder injury, and thus may be a possible therapeutic agent against interstitial cystitis, the symptoms of which are aggravated by stress conditions.
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MESH Headings
- Animals
- Cell Count
- Cystitis, Interstitial/etiology
- Cystitis, Interstitial/pathology
- Cystitis, Interstitial/prevention & control
- Disease Models, Animal
- Escape Reaction
- Female
- Free Radical Scavengers/therapeutic use
- Glutathione/metabolism
- Injections, Intraperitoneal
- Lipid Peroxidation/drug effects
- Malondialdehyde/metabolism
- Mast Cells/drug effects
- Mast Cells/pathology
- Microscopy, Electron, Scanning
- Rats
- Rats, Wistar
- Stress, Psychological/complications
- Stress, Psychological/drug therapy
- Stress, Psychological/pathology
- Taurine/therapeutic use
- Urinary Bladder/drug effects
- Urinary Bladder/metabolism
- Urinary Bladder/ultrastructure
- Water
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Affiliation(s)
- Ali Zeybek
- Department of Anatomy, School of Medicine, Kocaeli University, Kocaeli, Turkey.
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37
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Zeybek A, Sağlam B, Cikler E, Cetinel S, Ercan F, Sener G. Protective effects of taurine on protamine sulfate induced bladder damage. World J Urol 2006; 24:438-44. [PMID: 16850341 DOI: 10.1007/s00345-006-0106-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2005] [Accepted: 05/31/2006] [Indexed: 11/28/2022] Open
Abstract
The present study was designed to investigate the putative protective effects of taurine on protamine sulfate (PS) induced bladder injury. Wistar albino female rats were catheterized and intravesically infused with phosphate buffered solution (control group) or PS (PS group) dissolved in phosphate buffered solution. In the PS + taurine (PS+Tau) group, after the PS instillation, taurine (50 mg/kg) was injected intraperitoneally for 3 days. Histopathological changes were investigated by light and scanning electron microscopy. Tissue samples were also obtained to determine bladder malondialdehyde (MDA) (a biomarker of oxidative damage) and glutathione (GSH) (a biomarker of protective oxidative injury) levels. In the PS group ulcerated areas, an irregular mucus layer, inflammatory cell infiltration, and increased number of mast cells were observed. In the PS+Tau group, a relatively normal urothelial topography, glycosaminoglycan layer, and decreased number of mucosal mast cells and inflammatory cells were observed. Increased MDA levels as a result of PS induction lead us to propose that free radicals may have a critical role in this injury. The significant decrease in MDA and increase in GSH levels in the PS+Tau group compared to PS group was in accordance with morphological findings. Based on the results, taurine treatment significantly prevented PS induced degenerative morphological and biochemical changes of urinary bladder mucosa.
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Affiliation(s)
- Ali Zeybek
- Department of Anatomy, School of Medicine, Kocaeli University, Kocaeli, Turkey.
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