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Syringic Acid Ameliorates Cardiac, Hepatic, Renal and Neuronal Damage Induced by Chronic Hyperglycaemia in Wistar Rats: A Behavioural, Biochemical and Histological Analysis. Molecules 2022; 27:molecules27196722. [PMID: 36235257 PMCID: PMC9573038 DOI: 10.3390/molecules27196722] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/29/2022] [Accepted: 10/04/2022] [Indexed: 11/16/2022] Open
Abstract
This study investigated the effects of syringic acid (SA) on renal, cardiac, hepatic, and neuronal diabetic complications in streptozotocin-induced neonatal (nSTZ) diabetic rats. STZ (110 mg/kg i.p) was injected into Wistar rat neonates as a split dose (second and third postnatal day). Diabetes mellitus was diagnosed in adults by measuring fasting blood glucose levels, urine volume, and food and water intake. The treatment of SA (25 mg/kg, 50 mg/kg p.o) was given from the 8th to 18th postnatal week. To assess the development of diabetic complications and the effect of therapy, biochemical indicators in serum and behavioural parameters were recorded at specific intervals during the study period. SA (25 mg/kg, 50 mg/kg p.o) treatment reduced hyperglycaemia, polydipsia, polyphagia, polyuria, relative organ weight, cardiac hypertrophic indices, inflammatory markers, cell injury markers, glycated haemoglobin, histopathological score, and oxidative stress, and increased Na/K ATPase activity. These findings suggest that SA might significantly alleviate diabetic complications and/or renal, neuronal, cardiac, and hepatic damage in nSTZ diabetic rats.
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Erzhi Formula Extracts Reverse Renal Injury in Diabetic Nephropathy Rats by Protecting the Renal Podocytes. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:1741924. [PMID: 30210570 PMCID: PMC6126112 DOI: 10.1155/2018/1741924] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 07/28/2018] [Accepted: 08/05/2018] [Indexed: 12/18/2022]
Abstract
Podocytes injury was a crucial factor resulting in diabetic nephropathy (DN). Erzhi formula extract (EZF) was a clinical effective Chinese medicine on DN, but its mechanism was unclear. In this study, the main compounds of EZF and their pharmacokinetics in rat were detected by HPLC-MS/MS. And then, blood glucose, urine protein, renal index, renal microstructural (HE/PAS staining), inflammatory factors (IL-β, TNF-α, IL-6), and protein/mRNA expression related to the function of podocyte (CD2AP and Podocin) in DN rats were investigated after the oral administration of EZF. The concentrations of specnuezhenide and wedelolactone in rat kidney were 7.19 and 0.057 mg/kg, respectively. The Tmax of specnuezhenide and wedelolactone were 2.0 and 1.50 h, respectively. Their Cmax were, respectively, 30.24 ± 2.68 and 6.39 ± 0.05 μg/L. Their AUC(0-∞) were 123.30 ± 2.68 and 16.56 ± 0.98 μg/L⁎h, respectively. Compared with the model group, the blood glucose and the 24-hour urinary protein were significantly decreased (P < 0.05) after 16 weeks' treatment of EZF. The expressions of Podocin and CD2AP protein/mRNA were increased (P < 0. 05). The deteriorate of glomerular morphology was alleviated under the treatment of EZF. EZF prominently decreased the levels of inflammatory factors (P < 0.05). MDA was significantly decreased (P < 0.05) with the significant increase of SOD activity (P < 0.05) in EZF groups. All the results proved that EZF repaired glomerular mesangial matrix, protected renal tubule, and improved renal function in DN rats by upregulating the expression of Podocin and CD2AP protein/mRNA in podocytes.
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Antioxidation, anti-hyperglycaemia and renoprotective effects of extracellular polysaccharides from Pleurotus eryngii SI-04. Int J Biol Macromol 2018; 111:219-228. [DOI: 10.1016/j.ijbiomac.2018.01.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 12/29/2017] [Accepted: 01/02/2018] [Indexed: 01/02/2023]
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Yang H, Wu S. Retracted Article: Ligustrazine attenuates renal damage by inhibiting endoplasmic reticulum stress in diabetic nephropathy by inactivating MAPK pathways. RSC Adv 2018; 8:21816-21822. [PMID: 35541710 PMCID: PMC9080983 DOI: 10.1039/c8ra01674g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 05/13/2018] [Indexed: 01/15/2023] Open
Abstract
Diabetic nephropathy (DN) is a major cause of chronic kidney disease around the world.
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Affiliation(s)
- Hongling Yang
- Department of Nephrology
- Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital
- Chengdu
- China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital
| | - Shukun Wu
- Department of Nephrology
- Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital
- Chengdu
- China
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital
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Tao T, He C, Deng J, Huang Y, Su Q, Peng M, Yi M, Darko KO, Zou H, Yang X. A novel synthetic derivative of quercetin, 8-trifluoromethyl-3,5,7,3',4'- O-pentamethyl-quercetin, inhibits bladder cancer growth by targeting the AMPK/mTOR signaling pathway. Oncotarget 2017; 8:71657-71671. [PMID: 29069736 PMCID: PMC5641079 DOI: 10.18632/oncotarget.17799] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/27/2017] [Indexed: 02/06/2023] Open
Abstract
Quercetin is a naturally existing compound and shows attractive anticancer properties for a variety of solid tumors including glioma, bladder cancer, hepatocellular carcinoma, breast cancer, hematological malignancies and prostate carcinoma. However, these anticancer properties have not been clinically approved due to unclear mechanistic information and its low bioactivity. In our previous study, we elucidated that quercetin activates AMPK pathway which is the major mechanism for its unique anticancer effect in bladder cancer. In the present study, we are trying to enhance its bioactivity by chemical modification using fluorination approach to prepare novel chemical entities, based on the principle of intermediate derivative method (IDM). The compound we obtained is named 8-trifluoromethyl-3,5,7,3′,4′-O-pentamethyl- quercetin (TFQ), characterized by NMR spectra and mass spectrum (MS). The results from MTT and cologenic assay in two human and one murine bladder cancer cell lines showed that TFQ exhibits more potent inhibition on the three bladder cancer cell lines than quercetin (Que) although this enhanced effects is not very dramatic. Furthermore, we found that the survival of normal bladder cells PEBC was not significantly suppressed by TFQ compared with Que. Western blot analysis showed that TFQ possess more potent AMPK activation than Que. The downstream of AMPK was further examined by western blot. TFQ treatment is able to inactivate mTOR signaling pathway with the regulation of mTOR, 4EBP1 and P70S6K. These results demonstrated that the fluorinated quercetin derivative TFQ inhibits bladder cancer cell growth through the AMPK/mTOR pathway. Altogether, our findings suggest that TFQ could serve as a new potential therapeutic agent for bladder cancer more effective than Que.
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Affiliation(s)
- Ting Tao
- Key Laboratory of Small Targeted Molecules' Discovery, Hunan Normal University, Changsha, Hunan, 410013 China.,Department of Pharmacy, School of Medicine, Hunan Normal University, Changsha, Hunan, 410013 China
| | - Caimei He
- Key Laboratory of Small Targeted Molecules' Discovery, Hunan Normal University, Changsha, Hunan, 410013 China.,Department of Pharmacy, School of Medicine, Hunan Normal University, Changsha, Hunan, 410013 China
| | - Jun Deng
- Key Laboratory of Small Targeted Molecules' Discovery, Hunan Normal University, Changsha, Hunan, 410013 China.,Department of Pharmacy, School of Medicine, Hunan Normal University, Changsha, Hunan, 410013 China
| | - Yanjun Huang
- Key Laboratory of Small Targeted Molecules' Discovery, Hunan Normal University, Changsha, Hunan, 410013 China.,Department of Pharmacy, School of Medicine, Hunan Normal University, Changsha, Hunan, 410013 China
| | - Qiongli Su
- Key Laboratory of Small Targeted Molecules' Discovery, Hunan Normal University, Changsha, Hunan, 410013 China.,Department of Pharmacy, School of Medicine, Hunan Normal University, Changsha, Hunan, 410013 China
| | - Mei Peng
- Key Laboratory of Small Targeted Molecules' Discovery, Hunan Normal University, Changsha, Hunan, 410013 China.,Department of Pharmacy, School of Medicine, Hunan Normal University, Changsha, Hunan, 410013 China.,Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, 410008 China
| | - Meiling Yi
- Key Laboratory of Small Targeted Molecules' Discovery, Hunan Normal University, Changsha, Hunan, 410013 China.,Department of Pharmacy, School of Medicine, Hunan Normal University, Changsha, Hunan, 410013 China
| | - Kwame Oteng Darko
- Key Laboratory of Small Targeted Molecules' Discovery, Hunan Normal University, Changsha, Hunan, 410013 China.,Department of Pharmacy, School of Medicine, Hunan Normal University, Changsha, Hunan, 410013 China
| | - Hui Zou
- Key Laboratory of Small Targeted Molecules' Discovery, Hunan Normal University, Changsha, Hunan, 410013 China.,Department of Pharmacy, School of Medicine, Hunan Normal University, Changsha, Hunan, 410013 China
| | - Xiaoping Yang
- Key Laboratory of Small Targeted Molecules' Discovery, Hunan Normal University, Changsha, Hunan, 410013 China.,Department of Pharmacy, School of Medicine, Hunan Normal University, Changsha, Hunan, 410013 China.,Key Laboratory of Animal Nutrition and Human Health, Hunan Normal University, Changsha, Hunan, 410013 China
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Rahman IU, Idrees M, Rahman KU, Khan MI, Jan NU. Hypoglycemic potential of herbal product dolabi compared with pioglitazone in streptozotocin-induced diabetic rats. Chin J Integr Med 2016:10.1007/s11655-016-2583-1. [PMID: 27220738 DOI: 10.1007/s11655-016-2583-1] [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: 04/01/2014] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To investigate and compare the hypoglycemic potential of commonly used polyherbal formulation dolabi with pioglitazone in streptozotocin-induced diabetic rats. METHODS A total of 24 adult male Wistar rats were randomized into diabetic control group, diabetic group receiving dolabi (17.6 mg kg-1 day-1), diabetic group receiving dolabi (35.2 mg kg-1 day-1) and diabetic group receiving pioglitazone (2.7 mg kg-1 day-1), with 6 rats in each group. The study was conducted for 4 weeks. Blood samples were collected for fructosamine estimation, fasting plasma glucose (FPG) and oral glucose tolerance test (OGTT) were measured at different time points. RESULTS Compared with baseline, the groups receiving dolabi (35.2 mg kg-1 day-1) and pioglitazone showed signififi cant reductions (P<0.05) in fructosamine levels at the end point and same was the case for FPG and OGTT with pioglitazone showing greater hypoglycemic potential. However, the group receiving dolabi (17.6 mg kg-1 day-1) showed significant reduction (P<0.05) only in FPG level and failed to achieve significant changes either in fructosamine level or OGTT. Moreover, signififi cant differences (P<0.05) in FPG and fructosamine levels were observed between groups receiving dolabi (17.6 mg kg-1 day-1) and pioglitazone at the end point. CONCLUSIONS These results showed sluggish hypoglycemic effects of dolabi at manufacturer's recommended doses. At a higher dose however, good glycemic control was achieved with dolabi and the results were comparable to pioglitazone. The shorter duration of study (4 weeks) might be the reason of poor glycemic control associated with dolabi at a normal dose.
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Affiliation(s)
- Inayat Ur Rahman
- Gandhara College of Pharmacy, Gandhara University, Peshawar, 25000, Pakistan.
| | - Muhammad Idrees
- Department of Pathology, Kabir Medical College, Peshawar, 25000, Pakistan
| | - Khalil Ur Rahman
- Department of Anatomy, Bannu Medical College, Bannu, 24100, Pakistan
| | - Muhammad Iqbal Khan
- Department of Chemistry, Kohat University of Science and Technology, Kohat, 26000, Pakistan
| | - Naeem Ullah Jan
- Gandhara College of Pharmacy, Gandhara University, Peshawar, 25000, Pakistan
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Kolati SR, Kasala ER, Bodduluru LN, Mahareddy JR, Uppulapu SK, Gogoi R, Barua CC, Lahkar M. BAY 11-7082 ameliorates diabetic nephropathy by attenuating hyperglycemia-mediated oxidative stress and renal inflammation via NF-κB pathway. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2015; 39:690-699. [PMID: 25704036 DOI: 10.1016/j.etap.2015.01.019] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Revised: 01/22/2015] [Accepted: 01/28/2015] [Indexed: 06/04/2023]
Abstract
Diabetic nephropathy is a serious microvascular complication for patients associated with diabetes mellitus. Recent studies have suggested that NF-κB is the main transcription factor for the inflammatory response mediated progression of diabetic nephropathy. Hence, the present study is hypothesized to explore the renoprotective nature of BAY 11-7082 an IκB phosphorylation inhibitor on Streptozotocin (STZ) induced diabetic nephropathy in Sprague-Dawley (SD) rats. Male SD rats were divided into five groups, group I sham control, group II drug control, group III diabetic control (STZ 50mg/kg), group IV and V are test drug groups to which a single dose of STZ 50mg/kg was injected initially and later received BAY 11-7082 1mg/kg and 3mg/kg, respectively from 5th to 8th week. Eight weeks after STZ injection, diabetic rats exhibited significant renal dysfunction, as evidenced by reduced creatinine clearance, increased blood glucose, urea nitrogen and creatinine, which were reversed to near normal by BAY 11-7082. BAY 11-7082 treated rats showed significant improvement in the decreased enzymatic antioxidant SOD, non-enzymatic antioxidant GSH levels, and elevated lipid peroxidation and nitric oxide levels as observed in the diabetic rats. BAY 11-7082 treatment was found to significantly recover kidney histological architecture in the diabetic rats. Altered levels of inflammatory cytokines like TNF-α, IL-1β, IL-6 and nuclear transcriptional factor subunit NF-κB p65 were reverted to the normal level upon treatment with BAY 11-7082. Our results suggest that by limiting the activation of NF-κB, thereby reducing the expression of inflammatory cytokines and by inhibiting the oxidative damage BAY 11-7082 protect the rats against diabetic nephropathy.
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Affiliation(s)
- Sambasiva Rao Kolati
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research-Guwahati, Bhangagarh 781032, Assam, India
| | - Eshvendar Reddy Kasala
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research-Guwahati, Bhangagarh 781032, Assam, India.
| | - Lakshmi Narendra Bodduluru
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research-Guwahati, Bhangagarh 781032, Assam, India
| | - Jalandhar Reddy Mahareddy
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research-Guwahati, Bhangagarh 781032, Assam, India
| | - Shravan Kumar Uppulapu
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research-Guwahati, Bhangagarh 781032, Assam, India
| | - Ranadeep Gogoi
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research-Guwahati, Bhangagarh 781032, Assam, India
| | - Chandana C Barua
- Department of Pharmacology and Toxicology, College of Veterinary Sciences, Khanapara 781022, Assam, India
| | - Mangala Lahkar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research-Guwahati, Bhangagarh 781032, Assam, India; Department of Pharmacology, Gauhati Medical College and Hospital, Bhangagarh 781032, Assam, India
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9
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Joshi DV, Patil RR, Naik SR. Hydroalcohol extract of Trigonella foenum-graecum seed attenuates markers of inflammation and oxidative stress while improving exocrine function in diabetic rats. PHARMACEUTICAL BIOLOGY 2015; 53:201-211. [PMID: 25339548 DOI: 10.3109/13880209.2014.913296] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT AND OBJECTIVE The herb fenugreek, Trigonella foenum-graecum Linn (Fabaceae), seeds have been traditionally used in the treatment of diabetes but its effect on oxidative stress and pro-inflammatory cytokines in the improvement of exocrine function of diabetes has not been studied. The effect of hydroalcoholic extract of Trigonella foenum-graecum seeds (HEF) on alloxan-induced type-II diabetic rat model was investigated. MATERIALS AND METHODS Effect of HEF (500, 1000, and 2000 mg/kg), glimepiride (4 mg/kg), and combination of HEF (500 mg/kg) + glimepiride (2 mg/kg), on alloxan-induced diabetic rats was evaluated by assaying (blood glucose, serum protein, glycosylated hemoglobin, muscle and liver glycogen, glucose uptake by diaphragm, liver glucose transport, serum pancreatic enzymes (α-amylase, lipase), pro-inflammatory cytokines (TNF-α, IL-6), antioxidant enzymes [glutathione (GSH), superoxide dismutase (SOD)], lipid peroxides (liver and pancreas), and histoarchitecture (liver, pancreas). RESULTS Treatment with HEF (at different doses), glimepiride, and HEF + glimepiride increased body weight and glucose uptake, reduced plasma glucose, glycosylated hemoglobin, liver glucose transport, pro-inflammatory cytokines, pancreatic enzymes and restored depleted glycogen (muscle, liver) and total protein significantly (p < 0.01) and dose dependently, including prevention of lipid peroxidation and restoration of GSH and SOD (liver and pancreas). Treatment with HEF + glimepiride potentiated hypoglycemic activity of glimepiride. Histoarchitecture of liver and pancreas showed marked improvement. CONCLUSION Present experimental findings suggest that HEF possesses promising hypoglycemic activity, presumably by amelioration of oxidative stress and pro-inflammatory cytokines. HEF may be useful as an adjuvant with clinically effective antidiabetic drugs in the management of type-II diabetes.
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Affiliation(s)
- Deval V Joshi
- Department of Pharmacology, Sinhgad Institute of Pharmaceutical Science , Lonavala, Pune, Maharashtra , India
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Parvizi MR, Parviz M, Tavangar SM, Soltani N, Kadkhodaee M, Seifi B, Azizi Y, Keshavarz M. Protective effect of magnesium on renal function in STZ-induced diabetic rats. J Diabetes Metab Disord 2014; 13:84. [PMID: 25197628 PMCID: PMC4156611 DOI: 10.1186/s40200-014-0084-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 07/23/2014] [Indexed: 12/22/2022]
Abstract
Background Diabetic nephropathy is a serious complication of T1D (type one diabetes mellitus). Persistent hyperglycemia and subsequent hypomagnesemia is believed to develop kidney damage by activation of oxidative stress. We conducted this study to investigate the renoprotective effect of magnesium sulfate (MgSO4) on renal histopathology and oxidative stress in diabetic rats. Methods The study included 70 male rats. The animals were divided into seven groups: control (CRL), control receiving MgSO4 (CRL + Mg1 & CRL + Mg8), diabetic (DM1 & DM8) and diabetic receiving MgSO4 (DM + Mg1 & DM + Mg8). Rats were given 20 mg/kg (i.p) Streptozocin (STZ) for 5 consecutive days in (MLD) multiple low doses to induce T1D. At day 10 treatment groups were received MgSO4 (10 g/l) in drinking water, for 1 or 8 weeks. The blood glucose, BUN and creatinine levels were measured. Renal tissue levels of malondialdehyde (MDA) were measured by thiobarbituric acid (TBA) method to evaluate the oxidative stress. Renal histopathology was done using H & E staining method. Results Treatment with MgSO4 significantly decreased the blood glucose in DM + Mg1 and DM + Mg8 groups as compared with DM1 and DM8. Magnesium treatment also decreased serum BUN and tissue level of MDA significantly in both short and long term treatment. The body weight loss and kidney weight to body weight ratio was improved by MgSO4. Histological results showed there were no differences between DM and DM + Mg groups. Conclusion Our findings showed that diabetic nephropathy is associated with high blood glucose level and oxidative stress (significant increase in MDA level). The renal dysfunction and oxidative stress can be improved by magnesium sulfate administration. It is suggested that protection against development of diabetic nephropathy by MgSO4 treatment involves changes in the blood glucose and oxidative stress.
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Affiliation(s)
- Mohammad Reza Parvizi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Parviz
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Tavangar
- Department of Pathology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Nepton Soltani
- Department of Physiology, School of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Mehri Kadkhodaee
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Behjat Seifi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Yaser Azizi
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mansoor Keshavarz
- Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Ciddi V, Dodda D. Therapeutic potential of resveratrol in diabetic complications: In vitro and in vivo studies. Pharmacol Rep 2014; 66:799-803. [PMID: 25149983 DOI: 10.1016/j.pharep.2014.04.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 04/07/2014] [Accepted: 04/09/2014] [Indexed: 01/18/2023]
Abstract
BACKGROUND Various mechanisms with a complex integrating paradigm have been implicated in diabetic complications. The present study was aimed to evaluate the aldose reductase (AR) and advanced glycation end products (AGEs) inhibitory activity of resveratrol (RSV) and its potential in the treatment of diabetic complications such as cataract and nephropathy. METHODS RSV was studied for its inhibitory activity against rat lens AR (RLAR) and rat kidney AR (RKAR) in vitro along with its ability to inhibit formation of AGEs. Anticataract activity of RSV was demonstrated using sugar induced lens opacity model in isolated cattle lens. Furthermore the involvement of RSV in streptozotocin-induced diabetic nephropathy was investigated by assessing the key markers of kidney function along with the formation of AGEs. The potent AR inhibitor, fidarestat was as a standard. RESULTS RSV exhibited inhibitory activity against RLAR and RKAR with IC50 values of 4.99 μg/ml (21.9 μM) and 5.49 μg/ml (24.5 μM), respectively. It also showed a significant inhibition of AGEs formation in vitro. In sugar-induced lens opacity model, RSV displayed a significant protective effect preventing opacification and formation of polyols in cattle lens. RSV significantly improved glycaemic status and renal function in diabetic rats with a significant decrease in the formation of AGEs in the kidneys. CONCLUSIONS The results obtained in this study underline the potential of RSV as a possible therapeutic agent against long-term diabetic complications.
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Affiliation(s)
- Veeresham Ciddi
- University College of Pharmaceutical Sciences, Kakatiya University, Warangal, AP, India.
| | - Dilip Dodda
- University College of Pharmaceutical Sciences, Kakatiya University, Warangal, AP, India
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The comparative effects of perindopril and catechin on mesangial matrix and podocytes in the streptozotocin induced diabetic rats. Pharmacol Rep 2014; 66:279-87. [PMID: 24911082 DOI: 10.1016/j.pharep.2013.09.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2012] [Revised: 08/14/2013] [Accepted: 09/06/2013] [Indexed: 11/22/2022]
Abstract
BACKGROUND Hyperglycemia and advanced glucose end substance (AGE) are responsible for excessive reactive oxygen species (ROS) production, which causes oxidative stress in diabetes mellitus. Oxidative stress and high blood pressure may cause injury and glomerulosclerosis in the kidney. End-stage kidney failure induced by glomerulosclerosis leads to microalbuminuria (Ma) in diabetic nephropathy. We investigated the effects of an angiotensin converting enzyme inhibitor (ACEI), perindopril, and an antioxidant, catechin, on podocytes and the glomerular mesangial matrix in experimental diabetic nephropathy using ultrastructural visualization and immunohistochemical staining. METHODS We compared 5 groups of male adult Wistar albino rats: a control group, an untreated diabetic group, and diabetic groups treated with perindopril, catechin, or catechin+perindopril. RESULTS Blood glucose values in all diabetic groups were significantly higher than in the control group (p < 0.001). The body weight in all diabetic groups was significantly lower than in the control group (p < 0.001, p < 0.05). The kidney weight in the catechin+perindopril-treated diabetic group was significantly lower than in the untreated diabetic group (p < 0.001). In all treated diabetic groups, Ma levels decreased significantly (p < 0.001). Mesangial matrix and podocyte damage increased in the untreated diabetic group, but the group treated with catechin+perindopril showed less damage. TGF-beta 1 immunostaining was significantly lower in the catechin-treated and perindopril-treated groups than in the untreated diabetic group (p < 0.001). Catechin was more effective than ACEI in preventing podocyte structure. Podocytes appeared to be the first cells affected in diabetes mellitus. When exposed to hyperglycemia, podocytes caused the mesangial matrix to expand. CONCLUSIONS Catechin and perindopril were more effective in preventing renal corpuscle damage when administered together.
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Hsu CY, Shih HY, Chia YC, Lee CH, Ashida H, Lai YK, Weng CF. Rutin potentiates insulin receptor kinase to enhance insulin-dependent glucose transporter 4 translocation. Mol Nutr Food Res 2014; 58:1168-76. [DOI: 10.1002/mnfr.201300691] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 12/03/2013] [Accepted: 12/05/2013] [Indexed: 01/17/2023]
Affiliation(s)
- Chia-Yu Hsu
- Institute of Biotechnology; National Dong-Hwa University; Hualien 97401 Taiwan
- Institute of Biotechnology & Department of Life Science; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Hung-Yuan Shih
- Institute of Biotechnology; National Dong-Hwa University; Hualien 97401 Taiwan
| | - Yi-Chen Chia
- Department of Food Science & Technology; Tajen University; Ping Tung Hsien Taiwan
| | - Chia-Hung Lee
- Institute of Biotechnology; National Dong-Hwa University; Hualien 97401 Taiwan
| | - Hitoshi Ashida
- Department of Agrobioscience; Graduate School of Agricultural Science; Kobe University; Nada-ku Kobe 657-8501 Japan
| | - Yiu-Kay Lai
- Institute of Biotechnology & Department of Life Science; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Ching-Feng Weng
- Institute of Biotechnology; National Dong-Hwa University; Hualien 97401 Taiwan
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Naik SR, Shaikh N, Patil RR, Somani RS, Mali AS. Protective activity profile of herbomineral medicine in early diabetic nephropathy rats: Restoration of kidney antioxidants, hemodynamics and suppression of proinflammatory mediators. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.biomag.2013.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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The Effects of Origanum Majorana on Oxidative Stress and Histopathology of Renal Tissue among Streptozotocin-Induced Diabetic Rats. ACTA ACUST UNITED AC 2013. [DOI: 10.5812/thrita.9282] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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