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Fındık H, Aslan MG, Okutucu M, Yılmaz A, Tümkaya L, Mercantepe T, Akyıldız K, Uzun F. Protective Effect of Vaccinium myrtillus Extract on X-Ray Irradiation-Induced Retinal Toxicity via eNOS and 8-OHdG expression. Cells Tissues Organs 2023; 213:255-264. [PMID: 37517384 PMCID: PMC11152048 DOI: 10.1159/000532011] [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: 12/20/2022] [Accepted: 07/05/2023] [Indexed: 08/01/2023] Open
Abstract
Every year, hundreds of thousands of cancer patients receive radiotherapy treatment. Oxidative stress is observed in healthy tissues due to irradiation exposure. The present study is the first to address the effects of Vaccinium myrtillus (whortleberry, WB) against the effects of X-ray irradiation on retinal tissue. Twenty-four Sprague-Dawley rats were randomly allocated into 4 groups: (1) control group: rats without any treatment, (2) X-ray irradiation group: 8 Gray (Gy) RT for 2 days, (3) 100 mg WB extract + X-ray irradiation group: 8 Gy irradiation for 2 days and followed by intraperitoneal (IP) WB extract (100 mg/kg) supplementation for 10 days, (4) 200 mg WB extract + X-ray irradiation group: 8 Gy irradiation for 2 days and followed by IP WB extract (200 mg/kg) supplementation for 10 days. Eyes were enucleated on the 10th day after RT for histopathological, immunohistochemical (8-hydroxy-2'-deoxyguanosine [8-OHdG], endothelial nitric oxide synthase [eNOS]), and biochemical analyses (glutathione peroxidase [GSH], and malondialdehyde [MDA]). The GSH levels significantly decreased and MDA levels and 8-OHdG staining increased after X-ray irradiation compared to the control group. Combined X-ray irradiation + WB treatment significantly increased GSH levels and significantly decreased MDA production and 8-OHdG staining. However, eNOS staining was not affected in any of the groups. Besides, X-ray irradiation significantly increased cell losses and edematous areas. The WB significantly reversed the cellular damage in ganglion cells, inner nuclear, and outer nuclear layers in quantitative analyses. The X-ray irradiation caused significant retinal impairment, and additional WB therapy provided protective effects against radiation-induced retinopathy. These results may suggest WB extract as an adjuvant therapy to reverse retinal impairments after X-ray irradiation.
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Affiliation(s)
- Hüseyin Fındık
- Department of Ophthalmology, Recep Tayyip Erdogan University, Rize, Turkey
| | | | - Murat Okutucu
- Department of Ophthalmology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Adnan Yılmaz
- Department of Biochemistry, Recep Tayyip Erdogan University, Rize, Turkey
| | - Levent Tümkaya
- Department of Histology and Embryology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Tolga Mercantepe
- Department of Histology and Embryology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Kerimali Akyıldız
- Department of Biochemistry, Recep Tayyip Erdogan University, Rize, Turkey
| | - Feyzahan Uzun
- Department of Ophthalmology, Recep Tayyip Erdogan University, Rize, Turkey
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Acar A, Singh D. Monitoring genotoxic, biochemical and morphotoxic potential of penoxsulam and the protective role of European blueberry (Vaccinium myrtillus L.) extract. Sci Rep 2023; 13:6787. [PMID: 37101000 PMCID: PMC10133280 DOI: 10.1038/s41598-023-34068-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 04/24/2023] [Indexed: 04/28/2023] Open
Abstract
The present study aimed at exploring to explore the penoxsulam toxicity and protective effects of blueberry extract in roots of Allium cepa L. The effective concentration (EC50) of penoxsulam was determined at 20 µg/L by the root growth inhibition test as the concentration reducing the root length by 50%. The bulbs of A. cepa L. were treated with tap water, blueberry extracts (25 and 50 mg/L), penoxsulam (20 µg/L) and combination of blueberry extracts (25 and 50 mg/L) with penoxsulam (20 µg/L) for 96 h. The results revealed that penoxsulam exposure inhibited cell division, rooting percentage, growth rate, root length and weight gain in the roots of A. cepa L. In addition, it induced chromosomal anomalies such as sticky chromosome, fragment, unequal distribution of chromatin, bridge, vagrant chromosome and c-mitosis and DNA strand breaks. Further, penoxsulam treatment enhanced malondialdehyde content and SOD, CAT and GR antioxidant enzyme activities. Molecular docking results supported the up-regulation of antioxidant enzyme SOD, CAT and GR. Against all these toxicity, blueberry extracts reduced penoxsulam toxicity in a concentration-dependent manner. The highest amount of recovery for cytological, morphological and oxidative stress parameters was observed when using blueberry extract at a concentration of 50 mg/L. In addition, blueberry extracts application showed a positive correlation with weight gain, root length, mitotic index and rooting percentage whereas a negative correlation with micronucleus formation, DNA damage, chromosomal aberrations, antioxidant enzymes activities and lipid peroxidation indicating its protecting effects. As a result, it has been seen that the blueberry extract can tolerate all these toxic effects of penoxsulam depending on the concentration, and it has been understood that it is a good protective natural product against such chemical exposures.
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Affiliation(s)
- Ali Acar
- Department of Medical Services and Techniques, Vocational School of Health Services, Giresun University, Giresun, Turkey.
| | - Divya Singh
- Central Sericultural Research and Training Institute, Mysore, India
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KARA Ö, KİLİTCİ A, DAĞLIOĞLU G. Resveratrolün sıçan böbreğinde cisplatine bağlı hasar üzerindeki koruyucu etkisi. CUKUROVA MEDICAL JOURNAL 2022. [DOI: 10.17826/cumj.1086261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Purpose: The aim of this study was to evaluate the protective effect of resveratrol on cisplatin induced damage in rat kidney.
Materials and Methods: 30 female Wistar-Albino rats were allocated to form three groups: In group 1 (control group), 1 mL of 0.9% NaCl (saline) was administered intraperitoneally for 3 days. In group 2 (cisplatin group), 7.5 mg / kg intraperitoneal cisplatin was given for 3 days. In group 3 (cisplatin + resveratrol group) 7.5 mg / kg cisplatin and 10 mg / kg resveratrol were given via intraperitoneal route. Right kidneys were surgically extirpated in all groups. Malondialdehyde (MDA) levels and activities of catalase (CAT) and superoxide dismutase (SOD) were measured in both blood and tissues. Also, toxicity markers such as vascular congestion, hemorrhage, tubule degeneration and glomerular damage were assessed by examining the slides prepared from kidney tissue with microscopy.
Results: Tissue damage was significantly higher in group 2 than other groups. The MDA levels were significantly higher and the activities of SOD, and CAT were lower in group 2 than other groups.
Conclusion: According to our short term findings, resveratrol might be an effective molecule to prevent the harmful effect of cisplatin in rat kidney.
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Affiliation(s)
- Özlem KARA
- Kirsehir Ahi Evran University School of Medicine, Department of Histology and Embryology
| | - Asuman KİLİTCİ
- DUZCE UNIVERSITY, SCHOOL OF MEDICINE, DEPARTMENT OF SURGICAL MEDICAL SCIENCES, DEPARTMENT OF PATHOLOGY
| | - Gülçin DAĞLIOĞLU
- 3 Cukurova University Training and Research Hospital, Clinic of Biochemistry
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Shanmugavel V, Komala Santhi K, Kurup AH, Kalakandan S, Anandharaj A, Rawson A. Potassium bromate: Effects on bread components, health, environment and method of analysis: A review. Food Chem 2019; 311:125964. [PMID: 31865111 DOI: 10.1016/j.foodchem.2019.125964] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 11/04/2019] [Accepted: 11/26/2019] [Indexed: 02/07/2023]
Abstract
Potassium bromate, is an oxidizing agent and one of the best and cheapest dough improvers in the baking industry. Due to its positive effects it plays a major role in the bread-making industry. Potassium bromate has significant effect on food biomolecules, such as starch and protein, as it affects the extent of gelatinization, viscosity, swelling characteristics as well as gluten proteins; it removes the sulfhydryl group and leads to the formation of disulfide linkages and thus improves the bread properties. However, there are many reports elucidating its negative impact on human health. It is deemed as a potential human carcinogen by IARC and classified under class 2B. Due to this, countries across world have either partially or completely banned it. Numerous techniques have evolved to determine the concentration of potassium bromate in bread. This review explains in detail, the effects of potassium bromate on biomolecules, human health, environment and various methods of analysis.
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Affiliation(s)
- Venu Shanmugavel
- Department of Food Safety and Quality Testing, Indian Institute of Food Processing Technology, Thanjavur, Tamil Nadu, India
| | - Kotturu Komala Santhi
- Department of Food Safety and Quality Testing, Indian Institute of Food Processing Technology, Thanjavur, Tamil Nadu, India
| | - Anjali H Kurup
- Department of Food Safety and Quality Testing, Indian Institute of Food Processing Technology, Thanjavur, Tamil Nadu, India
| | - Sureshkumar Kalakandan
- Department of Food Safety and Quality Testing, Indian Institute of Food Processing Technology, Thanjavur, Tamil Nadu, India
| | - Arunkumar Anandharaj
- Department of Food Safety and Quality Testing, Indian Institute of Food Processing Technology, Thanjavur, Tamil Nadu, India
| | - Ashish Rawson
- Department of Food Safety and Quality Testing, Indian Institute of Food Processing Technology, Thanjavur, Tamil Nadu, India.
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Eren H, Aydin HR, Tumkaya L, Kazaz IO, Kalkan Y, Kazaz SN, Mercantepe T, Horsanali MO, Yilmaz A. Whortleberry protects kidney against the cisplatin-induced nephrotoxicity: an experimental study. Ren Fail 2018; 40:466-474. [PMID: 30130136 PMCID: PMC6104611 DOI: 10.1080/0886022x.2018.1500292] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Purpose: This study investigated the antioxidant effects of whortleberry against cisplatin-induced nephrotoxicity in rats. Material and methods: This study included 48 female Sprague–Dawley rats weighing 263.68 ± 8.29 g. The rats were divided into the following six groups, with eight rats in each group: control, ethanol control, whortleberry control, cisplatin control, 16 mg/kg cisplatin +100 mg/kg whortleberry, and 16 mg/kg cisplatin +200 mg/kg whortleberry groups. Biochemical analysis was performed by measuring total oxidant status and total antioxidant status, histopathological analysis was performed by calculating proximal and distal tubule areas (μm2), and immunohistochemical analysis was performed by determining anti-Caspase-3 immunostaining. Differences among the groups were examined using one-way analysis of variance, and p < .05 was considered statistically significant. Results: Cisplatin treatment decreased the total antioxidant status and increased the total oxidant status and Caspase-3 level. Moreover, it resulted in the dilatation, vacuolization and loss of tubular epithelial cells; and glomerular degeneration and edema in the kidney tissues (p < .05). Treatment with 100 and 200 mg whortleberries increased the total antioxidant status; decreased the total oxidant status and Caspase-3 level and ameliorated distal and proximal tubule degeneration, glomerular degeneration and edema in the kidney tissues (p < .05). Conclusions: Our results indicate that the antioxidant effects of the whortleberry decrease cisplatin-associated nephrotoxicity.
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Affiliation(s)
- Huseyin Eren
- a Urology Department , Recep Tayyip Erdogan University School of Medicine , Rize , Turkey
| | - Hasan Riza Aydin
- b Urology Department, Kanuni Training and Research Hospital , Medical Science University School of Medicine , Trabzon , Turkey
| | - Levent Tumkaya
- c Histology and Embryology Department , Recep Tayyip Erdogan University School of Medicine , Rize , Turkey
| | - Ilke Onur Kazaz
- d Urology Department, School of Medicine , Karadeniz Technical University , Trabzon , Turkey
| | - Yildiray Kalkan
- c Histology and Embryology Department , Recep Tayyip Erdogan University School of Medicine , Rize , Turkey
| | - Seher Nazli Kazaz
- e Medical Oncology Department , Kanuni Training and Research Hospital , Trabzon , Turkey
| | - Tolga Mercantepe
- c Histology and Embryology Department , Recep Tayyip Erdogan University School of Medicine , Rize , Turkey
| | - Mustafa Ozan Horsanali
- f Urology Department , Recep Tayyip Erdogan University Training and Research Hospital , Rize , Turkey
| | - Adnan Yilmaz
- g Biochemistry Department , Recep Tayyip Erdogan University School of Medicine , Rize , Turkey
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Complexion of Kadsura coccinea extract with cyclodextrin: characterization, thermal stability, antioxidative properties in vitro and the protective effects on kidney damage. J INCL PHENOM MACRO 2018. [DOI: 10.1007/s10847-018-0804-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Müller B, Ellinwood NM, Lorenz B, Stieger K. Detection of DNA Double Strand Breaks by γH2AX Does Not Result in 53bp1 Recruitment in Mouse Retinal Tissues. Front Neurosci 2018; 12:286. [PMID: 29765300 PMCID: PMC5938408 DOI: 10.3389/fnins.2018.00286] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 04/11/2018] [Indexed: 12/11/2022] Open
Abstract
Gene editing is an attractive potential treatment of inherited retinopathies. However, it often relies on endogenous DNA repair. Retinal DNA repair is incompletely characterized in humans and animal models. We investigated recruitment of the double stranded break (DSB) repair complex of γH2AX and 53bp1 in both developing and mature mouse neuroretinas. We evaluated the immunofluorescent retinal expression of these proteins during development (P07-P30) in normal and retinal degeneration models, as well as in potassium bromate induced DSB repair in normal adult (3 months) retinal explants. The two murine retinopathy models used had different mutations in Pde6b: the severe rd1 and the milder rd10 models. Compared to normal adult retina, we found increased numbers of γH2AX positive foci in all retinal neurons of the developing retina in both model and control retinas, as well as in wild type untreated retinal explant cultures. In contrast, the 53bp1 staining of the retina differed both in amount and character between cell types at all ages and in all model systems. There was strong pan nuclear staining in ganglion, amacrine, and horizontal cells, and cone photoreceptors, which was attenuated. Rod photoreceptors did not stain unequivocally. In all samples, 53bp1 stained foci only rarely occurred. Co-localization of 53bp1 and γH2AX staining was a very rare event (< 1% of γH2AX foci in the ONL and < 3% in the INL), suggesting the potential for alternate DSB sensing and repair proteins in the murine retina. At a minimum, murine retinal DSB repair does not appear to follow canonical pathways, and our findings suggests further investigation is warranted.
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Affiliation(s)
- Brigitte Müller
- Department of Ophthalmology, Justus-Liebig-University Giessen, Giessen, Germany
| | - N M Ellinwood
- Department of Animal Science and Veterinary Clinical Science, Iowa State University, Ames, IA, United States
| | - Birgit Lorenz
- Department of Ophthalmology, Justus-Liebig-University Giessen, Giessen, Germany
| | - Knut Stieger
- Department of Ophthalmology, Justus-Liebig-University Giessen, Giessen, Germany
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Altoom NG, Ajarem J, Allam AA, Maodaa SN, Abdel-Maksoud MA. Deleterious effects of potassium bromate administration on renal and hepatic tissues of Swiss mice. Saudi J Biol Sci 2017; 25:278-284. [PMID: 29472778 PMCID: PMC5816001 DOI: 10.1016/j.sjbs.2017.01.060] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 01/29/2017] [Accepted: 01/30/2017] [Indexed: 11/12/2022] Open
Abstract
Potassium bromate (KBrO3) is widely used as a food additive and is a major water disinfection by-product. The present study reports the side effects of KBrO3 administration in Swiss mice. Animals were randomly divided into three groups: control, low dose KBrO3 (100 mg/kg/day) and high dose KBrO3 (200 mg/kg/day) groups. Administration of KBrO3 led to decreased white blood corpuscles (WBCs), red blood corpuscles (RBCs) and platelets count in the animals of both the high and the low dose groups. Altered lipid profile represented as low density lipoprotein (LDL), high density lipoprotein (HDL) and cholesterol levels were observed in plasma samples of both KBrO3 treated groups of mice. Also, an increased plasma level of LDH was detected in both KBrO3 treated groups. Histological investigations showed impaired renal and hepatic histology that was concomitant with increased plasma Creatinine level in both of KBrO3-treated groups. Nevertheless, decreased glutathione (GSH) level in both renal and hepatic tissue of mice after KBrO3 intake was detected. These results show that KBrO3 has serious damaging effects and therefore, its use should be avoided.
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Affiliation(s)
- Naif G Altoom
- King Saud University, College of Science, Department of Zoology, Riyadh 11451, Saudi Arabia
| | - Jamaan Ajarem
- King Saud University, College of Science, Department of Zoology, Riyadh 11451, Saudi Arabia
| | - Ahmed A Allam
- King Saud University, College of Science, Department of Zoology, Riyadh 11451, Saudi Arabia.,Beni-suef University, Faculty of Science, Department of Zoology, Beni-Suef, Egypt
| | - Saleh N Maodaa
- King Saud University, College of Science, Department of Zoology, Riyadh 11451, Saudi Arabia
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9
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Ahmad MK, Mahmood R. Protective effect of taurine against potassium bromate-induced hemoglobin oxidation, oxidative stress, and impairment of antioxidant defense system in blood. ENVIRONMENTAL TOXICOLOGY 2016; 31:304-313. [PMID: 25213677 DOI: 10.1002/tox.22045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 08/23/2014] [Accepted: 08/23/2014] [Indexed: 06/03/2023]
Abstract
Potassium bromate (KBrO3 ) is widely used as a food-additive and is a major water disinfection by-product. KBrO3 causes severe toxicity in humans and experimental animals. Bromate is considered a probable human carcinogen and a complete carcinogen in animals. We have investigated the potential role of taurine in protecting against KBrO3 -induced oxidative stress in rat blood. Animals were given taurine for 5 days prior to KBrO3 and then sacrificed. Blood was collected and used to prepare hemolysates and plasma, which were then used for the analysis of several biochemical parameters. Administration of single oral dose of KBrO3 alone induced hepato- and nephro-toxicity as evident by elevated marker levels in plasma. Lipid peroxidation and protein oxidation were increased both in plasma and erythrocytes, suggesting the induction of oxidative stress. KBrO3 increased methemoglobin, nitric oxide, and hydrogen peroxide levels. It also altered the activities of the major antioxidant enzymes and lowered the antioxidant power of blood. Administration of taurine, prior to treatment with KBrO3 , resulted in significant attenuation in all these parameters but the administration of taurine alone had no effect. These results show that taurine is effective in mitigating the oxidative insult induced in rat blood by KBrO3 .
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Affiliation(s)
- Mir Kaisar Ahmad
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, U.P., India
| | - Riaz Mahmood
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, U.P., India
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Hao J, Zhu H, Zhang Z, Yang S, Li H. Identification of anthocyanins in black rice (Oryza sativa L.) by UPLC/Q-TOF-MS and their in vitro and in vivo antioxidant activities. J Cereal Sci 2015. [DOI: 10.1016/j.jcs.2015.05.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Tumbas Šaponjac V, Čanadanović-Brunet J, Ćetković G, Djilas S, Četojević-Simin D. Dried bilberry (Vaccinium myrtillus L.) extract fractions as antioxidants and cancer cell growth inhibitors. Lebensm Wiss Technol 2015. [DOI: 10.1016/j.lwt.2014.04.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nour V, Trandafir I, Cosmulescu S. Central Composite Design Applied to Optimize the Hydroalcoholic Extraction of Bilberry (V
accinium Myrtillus
L.) Fruits. J Food Biochem 2015. [DOI: 10.1111/jfbc.12119] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Violeta Nour
- Department of Horticulture & Food Science; Faculty of Agriculture and Horticulture; University of Craiova; A.I. Cuza 13 Craiova 200585 Romania
| | - Ion Trandafir
- Department of Chemistry; Faculty of Sciences; University of Craiova; Craiova Romania
| | - Sina Cosmulescu
- Department of Horticulture & Food Science; Faculty of Agriculture and Horticulture; University of Craiova; A.I. Cuza 13 Craiova 200585 Romania
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Takahashi A, Watanabe J, Sakaguchi H, Okazaki Y, Suzuki T, Chiji H. Anthocyanin-enriched Extracts from Aronia ( Aronia melanocarpa E.) and Haskap ( Lonicera caerulea L.) Suppressed KBrO 3-induced Renal Damage in Rats. J JPN SOC FOOD SCI 2015. [DOI: 10.3136/nskkk.62.235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Azusa Takahashi
- Division of Agrobiology, Graduate School of Agriculture, Hokkaido University
| | - Jun Watanabe
- Food Function Division, National Food Research Institute, National Agriculture and Food Research Organization
| | | | - Yukako Okazaki
- Department of Human Life Science Faculty of Human Life Science, Fuji Women’s University
| | - Takashi Suzuki
- Division of Agrobiology, Graduate School of Agriculture, Hokkaido University
| | - Hideyuki Chiji
- Department of Food Science and Human Nutrition Faculty of Human Life Science, Fuji Women’s University
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Govindaraghavan S. Pharmacopeial HPLC identification methods are not sufficient to detect adulterations in commercial bilberry (Vaccinium myrtillus) extracts. Anthocyanin profile provides additional clues. Fitoterapia 2014; 99:124-38. [DOI: 10.1016/j.fitote.2014.09.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 09/09/2014] [Accepted: 09/15/2014] [Indexed: 10/24/2022]
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Zhang J, Chu CJ, Li XL, Yao S, Yan B, Ren HL, Xu NY, Liang ZT, Zhao ZZ. Isolation and identification of antioxidant compounds in Vaccinium bracteatum Thunb. by UHPLC-Q-TOF LC/MS and their kidney damage protection. J Funct Foods 2014. [DOI: 10.1016/j.jff.2014.09.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Pandir D, Kara O, Kara M. Protective effect of bilberry (Vaccinium myrtillus L.) on cisplatin induced ovarian damage in rat. Cytotechnology 2014; 66:677-85. [PMID: 23959170 PMCID: PMC4082771 DOI: 10.1007/s10616-013-9621-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Accepted: 07/17/2013] [Indexed: 01/24/2023] Open
Abstract
Cisplatin is one of the most effective chemotherapeutic agents but injury may occur at higher doses. The aim of this study was to investigate the effect of bilberry on cisplatin induced toxic effects in rat ovary. Twenty-one female Wistar-Albino rats were utilized to form three groups: In group 1 (control group), each rat received intraperitoneal injection of 1 mL of 0.9 % NaCl saline solution during 10-days. In group 2 (cisplatin group), a single dose of 7.5 mg/kg b.w. cisplatin was given. In group 3 (cisplatin + bilberry group), a single dose of 7.5 mg/kg cisplatin and bilberry at 200 mg/kg b.w. were given for 10 days. Ovaries were surgically removed in all groups and prepared for biochemical and light microscopic investigations at the examination times. Malondialdehyde (MDA) levels and activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and glutathione-S-transferase (GST) of tissue samples were measured. Histopathological damages in cisplatin administrated rats were seen such as severe edema, vascular congestion, hemorrhage and follicular degeneration in the ovary tissue. Moderate pathological alterations were observed in rats treated with bilberry plus cisplatin. Cisplatin administration significantly increased MDA production and decreased SOD, CAT, GPx and GST activities in the ovarian tissue when compared to the control group (p < 0.05). Cisplatin + bilberry administration increased antioxidant enzymes activities and reduced MDA levels. Bilberry administration seems to reduce the cisplatin induced ovarian toxicity thus it alleviates free radical damage. But it dose not protect completely rat ovary tissues.
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Affiliation(s)
- Dilek Pandir
- Department of Biology, Faculty of Arts and Science, Bozok University, 66100, Divanliyolu, Yozgat, Turkey,
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Chemopreventive effect of bilberry (Vaccinium myrtillus) against cisplatin-induced oxidative stress and DNA damage as shown by the comet assay in peripheral blood of rats. Biologia (Bratisl) 2014. [DOI: 10.2478/s11756-014-0371-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Luo H, Lv XD, Wang GE, Li YF, Kurihara H, He RR. Anti-inflammatory effects of anthocyanins-rich extract from bilberry (Vaccinium myrtillusL.) on croton oil-induced ear edema andPropionibacterium acnesplus LPS-induced liver damage in mice. Int J Food Sci Nutr 2014; 65:594-601. [DOI: 10.3109/09637486.2014.886184] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Davarmanesh M, Miri R, Haghnegahdar S, Tadbir AA, Tanideh N, Saghiri MA, Garcia-Godoy F, Asatourian A. Protective effect of bilberry extract as a pretreatment on induced oral mucositis in hamsters. Oral Surg Oral Med Oral Pathol Oral Radiol 2013; 116:702-8. [DOI: 10.1016/j.oooo.2013.07.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 07/07/2013] [Accepted: 07/09/2013] [Indexed: 01/16/2023]
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20
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Hao J, Zhu H, Liu S, Li H. Characterization of Anthocyanins in Fruit of Kadsura coccinea (Lem.) A.C. Smith by UPLC/Q-TOF-MS Analysis and Evaluation of Stability of the Major Anthocyanins. FOOD ANAL METHOD 2013. [DOI: 10.1007/s12161-013-9751-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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21
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Jakesevic M, Xu J, Aaby K, Jeppsson B, Ahrné S, Molin G. Effects of bilberry (Vaccinium myrtillus) in combination with lactic acid bacteria on intestinal oxidative stress induced by ischemia-reperfusion in mouse. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:3468-3478. [PMID: 23488931 DOI: 10.1021/jf400203h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Intestinal ischemia-reperfusion (I/R) results in oxidative stress, inflammation, and tissue injuries. The present study investigates the antioxidative and anti-inflammatory effects of a dietary supplement of bilberry, either alone or in combination with Lactobacillus plantarum RESO56, L. plantarum HEAL19, or Pediococcus acidilactici JAM046, in an I/R-induced model for oxidative stress in mice. A bilberry diet without addition of bacteria significantly decreased both lipid peroxidation (p = 0.001) and mucosal injury in the ileum. Of 14 anthocyanins identified in bilberry, anthocyanin arabinosides were the most resistant to absorption and microbial degradation in the intestines. Cyanidin-3-glucoside and delphinidin-3-glucoside seemed to be mostly absorbed in the stomach and upper part of the small intestine, while malvidin-3-galactoside, peonidin-3-glucoside, peonidin-3-galactoside, and petunidin-3-galactoside seemed to be digested by the microbiota in the cecum. Bilberry strongly influenced the composition of the cecal microbiota. In conclusion, a food supplement of bilberry protected small intestine against oxidative stress and inflammation induced by ischemia-reperfusion.
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Affiliation(s)
- Maja Jakesevic
- Food Hygiene, Department of Food Technology, Engineering and Nutrition, Lund University, Lund, Sweden.
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22
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Du DS, Zhu T, Ren ST, Xie GL, Li SB, Chu DC, Liu XT, Liu M, Ma XB, Zhou MH, Zhu DN, Deng ZX, Wang J. γ-Aminobutyric acid-mediated neurotransmission in cerebellar-hypothalamic circuit attenuates gastric mucosal injury induced by ischemia-reperfusion. Neurogastroenterol Motil 2013; 25:313-e249. [PMID: 23279161 DOI: 10.1111/nmo.12062] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Excessive greater splanchnic nerve (GSN) activation contributes to the progression of gastric ischemia-reperfusion (GI-R) injury. This study was designed to investigate the protective mechanism of cerebellar fastigial nucleus (FN) stimulation against GI-R injury. METHODS The GI-R injury model was induced in rats by clamping the celiac artery for 30 min, and then reperfusion for 30 min, 1, 3, 6, or 24 h, respectively. KEY RESULTS Microinjection of L-Glu (3, 6, 12 μg) into the FN dose-dependently attenuated GI-R injury and GSN activity. In addition, there was an enhancement of gastric mucosal blood flow in GI-R rats. Pretreatment with the glutamic acid decarboxylase antagonist into the FN, the GABAA receptor antagonist into the lateral hypothalamic area or lesion of superior cerebellar peduncle all reversed the protective effects of the FN stimulation. Furthermore, the FN stimulation reduced the TUNEL-positive gastric mucosal cell and Bax-positive gastric mucosal cell in GI-R rats. CONCLUSIONS & INFERENCES These results indicate that the protective effects of the FN stimulation against GI-R injury may be mediated by attenuation of the excessive GSN activation, gastric mucosal cell apoptosis, and Bax expression in GI-R rats.
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Affiliation(s)
- D S Du
- Department of Physiology and Pathophysiology, Shanghai Medical College of Fudan University, Shanghai, China
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23
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Protective effects of anthocyanins on the ectonucleotidase activity in the impairment of memory induced by scopolamine in adult rats. Life Sci 2012; 91:1221-8. [DOI: 10.1016/j.lfs.2012.09.013] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2012] [Revised: 09/12/2012] [Accepted: 09/19/2012] [Indexed: 12/20/2022]
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24
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Accelerated skeletal muscle recovery after in vivo polyphenol administration. J Nutr Biochem 2012; 23:1072-9. [DOI: 10.1016/j.jnutbio.2011.05.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2011] [Revised: 05/10/2011] [Accepted: 05/28/2011] [Indexed: 11/17/2022]
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25
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Ahmad MK, Naqshbandi A, Fareed M, Mahmood R. Oral administration of a nephrotoxic dose of potassium bromate, a food additive, alters renal redox and metabolic status and inhibits brush border membrane enzymes in rats. Food Chem 2012; 134:980-5. [DOI: 10.1016/j.foodchem.2012.03.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Revised: 01/30/2012] [Accepted: 03/01/2012] [Indexed: 11/28/2022]
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26
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Ahmad MK, Mahmood R. Oral administration of potassium bromate, a major water disinfection by-product, induces oxidative stress and impairs the antioxidant power of rat blood. CHEMOSPHERE 2012; 87:750-756. [PMID: 22277885 DOI: 10.1016/j.chemosphere.2011.12.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 12/15/2011] [Accepted: 12/30/2011] [Indexed: 05/31/2023]
Abstract
Potassium bromate (KBrO(3)) is a widely used food additive, a water disinfection by-product and a known nephrotoxic agent. The effect of KBrO(3) on rat blood, especially on the anti-oxidant defense system, was studied in this work. Animals were given a single oral dose of KBrO(3) (100 mg/kg body weight) and sacrificed 12, 24, 48, 96 and 168 h after this treatment. Blood was collected from the animals and separated into plasma and erythrocytes. KBrO(3) administration resulted in increased lipid peroxidation, protein oxidation, hydrogen peroxide levels and decreased the reduced glutathione content indicating the induction of oxidative stress in blood. Methemoglobin levels and methemoglobin reductase activity were significantly increased while the total anti-oxidant power was greatly reduced upon KBrO(3) treatment. Nitric oxide levels were enhanced while vitamin C concentration decreased in KBrO(3) treated animals. The activities of major anti-oxidant enzymes were also altered upon KBrO(3) treatment. The maximum changes in all these parameters were 48 h after the administration of KBrO(3) and then recovery took place. These results show for the first time that KBrO(3) induces oxidative stress in blood and impairs the anti-oxidant defense system. Thus impairment in the anti-oxidant power and alterations in the activities of major anti-oxidant enzymes may play an important role in mediating the toxic effects of KBrO(3) in the rat blood. The study of such biochemical events in blood will help elucidate the molecular mechanism of action of KBrO(3) and also for devising methods to overcome its toxic effects.
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Affiliation(s)
- Mir Kaisar Ahmad
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202 002, UP, India
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27
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Andersen FA. Annual Review of Cosmetic Ingredient Safety Assessments: 2007-2010. Int J Toxicol 2011; 30:73S-127S. [DOI: 10.1177/1091581811412618] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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28
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Ogawa K, Oyagi A, Tanaka J, Kobayashi S, Hara H. The Protective Effect and Action Mechanism of Vaccinium myrtillus
L. on Gastric Ulcer in Mice. Phytother Res 2011; 25:1160-5. [DOI: 10.1002/ptr.3413] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2010] [Revised: 12/21/2010] [Accepted: 12/27/2010] [Indexed: 11/07/2022]
Affiliation(s)
- Kenjirou Ogawa
- Molecular Pharmacology, Department of Biofunctional Evaluation; Gifu Pharmaceutical University; Gifu 501-1196 Japan
| | - Atsushi Oyagi
- Molecular Pharmacology, Department of Biofunctional Evaluation; Gifu Pharmaceutical University; Gifu 501-1196 Japan
| | - Junji Tanaka
- Molecular Pharmacology, Department of Biofunctional Evaluation; Gifu Pharmaceutical University; Gifu 501-1196 Japan
| | - Saori Kobayashi
- Wakasa Seikatsu Co. Ltd; 22 Naginataboko-cho Shijo-Karasuma, Shimogyo-ku Kyoto 600-8008 Japan
| | - Hideaki Hara
- Molecular Pharmacology, Department of Biofunctional Evaluation; Gifu Pharmaceutical University; Gifu 501-1196 Japan
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29
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Bao L, Abe K, Tsang P, Xu JK, Yao XS, Liu HW, Kurihara H. Bilberry extract protect restraint stress-induced liver damage through attenuating mitochondrial dysfunction. Fitoterapia 2010; 81:1094-101. [DOI: 10.1016/j.fitote.2010.07.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2010] [Revised: 06/30/2010] [Accepted: 07/01/2010] [Indexed: 10/19/2022]
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30
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Choi EH, Park JH, Kim MK, Chun HS. Alleviation of doxorubicin-induced toxicities by anthocyanin-rich bilberry (Vaccinium myrtillus L.) extract in rats and mice. Biofactors 2010; 36:319-27. [PMID: 20623509 DOI: 10.1002/biof.106] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The objective of this study was to investigate the effects of anthocyanin-rich bilberry extract (BE) with highly antioxidative potential against doxorubicin (Dox)-induced toxicity in rat and mouse models. Sprague-Dawley rats treated with Dox (15 mg/kg intraperitoneally) showed marked body weight loss, increased abdominal ascites and serum glutamate oxaloacetate transaminase (GOT) level, serum and cardiac lipid peroxidation, myocardial histopathological damage, and depletion of cardiac glutathione (GSH). Dietary supplementation with 1% BE significantly reduced serum lipid peroxidation and increased cardiac creatine phosphokinase activity and total GSH level compared with the levels in the Dox control rats (P < 0.05). Serum GOT and cardiac lipid peroxide levels did not change significantly after BE treatment. Morphologic examination revealed that Dox-induced myocardial damage was also significantly suppressed in rats fed with the 1% BE diet. Oral administration of 500 mg/kg of BE for 10 days to mice treated with Dox (10 mg/kg) partially restored the Dox-induced changes by increasing red blood cell and bone marrow cell counts, and hemoglobin level. Although the protective effects of BE were insufficient to completely counteract the toxic effects of Dox, these results suggest that BE supplementation provides moderate protection against Dox-induced cardiac and hematopoietic damage.
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Affiliation(s)
- Eun Hye Choi
- Food Safety Research Center, Korea Food Research Institute, Bundang-gu, Sungnam-si, Kyonggi-do, South Korea
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31
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Yao N, Lan F, He RR, Kurihara H. Protective effects of bilberry ( Vaccinium myrtillus L.) extract against endotoxin-induced uveitis in mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:4731-4736. [PMID: 20222750 DOI: 10.1021/jf904572a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Endotoxin-induced uveitis (EIU), a useful animal model of ocular inflammation, is induced by injection of lipopolysacharide (LPS). These experiments showed that the nitric oxide (NO) level significantly increased in the whole eye homogenate of BALB/C mice 24 h after footpad injection of LPS at a dosage of 100 mg/mouse. However, the elevated NO level was significantly reduced by oral administration of bilberry extract (containing 42.04% anthocyanins) at dosages of 50, 100, and 200 mg/kg/day for 5 days before the LPS injection. In addition, bilberry extract decreased malondialdehyde (MDA) level and increased oxygen radical absorbance capacity (ORAC) level, glutathione (GSH) level, vitamin C level, and total superoxide dismutase (SOD) and glutathione peroxidase (GPx) activities. Moreover, bilberry extract increased expression of copper/zinc superoxide dismutase (CuZnSOD), manganese superoxide dismutase (MnSOD), and GPx mRNA. Taken together, bilberry extract showed protective effects against EIU, whereas the effects of bilberry extract (100 and 200 mg/kg/day, 5 days) were dose-dependent. In conclusion, these results provide new evidence to elucidate the beneficial effects of bilberry extract on eye health.
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Affiliation(s)
- Nan Yao
- Institute of Traditional Chinese Medicine and Natural Products, Jinan University, Guangzhou 510632, China
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32
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Du D, Ma X, Zhang J, Zhang Y, Zhou X, Li Y. Cellular and molecular mechanisms of 17beta-estradiol postconditioning protection against gastric mucosal injury induced by ischemia/reperfusion in rats. Life Sci 2009; 86:30-8. [PMID: 19931544 DOI: 10.1016/j.lfs.2009.11.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2009] [Revised: 10/29/2009] [Accepted: 10/30/2009] [Indexed: 12/15/2022]
Abstract
AIMS To investigate the protective effects of 17beta-estradiol postconditioning against ischemia/reperfusion (I-R)-induced gastric mucosal injury in rats. MAIN METHODS The animal model of gastric ischemia/reperfusion was established by clamping of the celiac artery for 30 min and reperfusion for 30 min, 1h, 3h, 6h, 12h or 24h. 17beta-estradiol at doses of 5, 50 or 100 microg/kg (rat) was administered via peripheral veins 2 min before reperfusion. In a subgroup of rats, the estrogen receptor antagonist fulvestrant (Ful, 2mg/kg) was intravenously injected prior to 17beta-estradiol administration. Histological and immunohistochemical methods were employed to assess the gastric mucosal injury index and gastric mucosal cell apoptosis and proliferation. The malondialdehyde (MDA) concentration, superoxide dismutase (SOD) activity, xanthine oxidase (XOD) activity and hydroxyl free radical (-OH) inhibitory ability were determined by colorimetric assays. Subsequently, the expression of Bcl-2 and Bax in rat gastric mucosa was examined by western blotting. KEY FINDINGS 17beta-estradiol dose-dependently inhibited gastric I-R (GI-R) injury, and 17beta-estradiol (50 microg/kg) markedly attenuated GI-R injury 1h after reperfusion. 17beta-estradiol inhibited gastric mucosal cell apoptosis and promoted gastric mucosal cell proliferation in addition to increasing SOD activity and -OH inhibitory ability and decreasing the MDA content and XOD activity. The Bax protein level increased 1h after GI-R and was markedly reduced by intravenous administration of 17beta-estradiol. In contrast, the level of Bcl-2 protein decreased 1h after GI-R and was restored to normal levels by intravenous administration of 17beta-estradiol. These effects of 17beta-estradiol were inhibited by pretreatment with fulvestrant. SIGNIFICANCE 17beta-estradiol postconditioning should be investigated further as a possible strategy against gastric mucosal injury.
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Affiliation(s)
- Dongshu Du
- Department of Physiology, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou 221002, Jiangsu Province, China
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33
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Bao L, Yao XS, Yau CC, Tsi D, Chia CS, Nagai H, Kurihara H. Protective effects of bilberry (Vaccinium myrtillus L.) extract on restraint stress-induced liver damage in mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:7803-7807. [PMID: 18690680 DOI: 10.1021/jf800728m] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Our experiments showed that 18 h restraint stress could induce serious liver damage, with an increase in plasma alanine aminotransferase (ALT) level (107.68 +/- 3.19 U/L vs 18.08 +/- 1.46 U/L). Meanwhile, we observed increased malondialdehyde (MDA) levels and lowered oxygen radical absorbance capacity (ORAC) values in plasma and liver of restraint mice compared with starved mice. Bilberry extract (containing 42.04% anthocyanins) was oral administrated to mice at 50, 100, and 200 mg/(kg x day) for five days, which remarkably decreased plasma ALT level to 17.23 +/- 2.49 U/L at the dose of 200 mg/(kg x day) and thus alleviated stress-induced liver damage. In addition, bilberry extracts increased glutathione (GSH) and vitamin C levels and significantly decreased MDA and nitric oxide (NO) levels in the liver tissues. These results suggest that bilberry extract plays an important role in protecting against restraint stress-induced liver damage by both scavenging free radicals activity and lipid peroxidation inhibitory effect. This study showed the beneficial health effects of bilberry extract through its antioxidative action.
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Affiliation(s)
- Li Bao
- College of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenhe District, Shenyang 110016, China
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34
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Svobodová A, Rambousková J, Walterová D, Vostalová J. Bilberry extract reduces UVA-induced oxidative stress in HaCaT keratinocytes: a pilot study. Biofactors 2008; 33:249-66. [PMID: 19509461 DOI: 10.1002/biof.5520330402] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Exposure to UVA radiation is known to cause many adverse biological effects by inducing the stricken cells to produce reactive oxygen species (ROS). In recent years the use of botanicals has received considerable interest in the skin protection. Bilberry (Vaccinium myrtillus L.) fruit contains several polyphenols with strong antioxidant and anti-inflammatory properties. In this study we evaluated potential UVA preventive effect of V. myrtillus fruit extract (VME; anthocyanins, 25% w/w) in HaCaT keratinocytes. Pre-treatment (1 h) or post-treatment (4 h) of HaCaT with VME resulted in attenuation of UVA-caused damage. Application of the extract significantly reduced UVA-stimulated ROS formation in keratinocytes. VME also prevented/reduced UVA-caused peroxidation of membrane lipids and depletion of intracellular GSH. The observed cytoprotective effect may be linked to the antioxidant activity of the plant constituents, namely anthocyanins.
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Affiliation(s)
- Alena Svobodová
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, Palacký University, Olomouc, Czech Republic. alf.svoboda@seznam
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