Evaluation of Hypoglycemic Efficacy of Tangningtongluo Formula, a Traditional Chinese Miao Medicine, in Two Rodent Animal Models

Traditional Chinese medicines largely lack adequate and scientifically rigorous evidence regarding efficacy and functional mechanisms. The present study was aimed to confirm the hypoglycemic effect of Tangningtongluo (TNTL) formula, a traditional Chinese Miao medicine, in two animal models: high-fat...

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Main Authors: Long Cheng, Xiang-bao Meng, Shan Lu, Ting-ting Wang, Yue Liu, Gui-bo Sun, Xiao-bo Sun
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Journal of Diabetes Research
Online Access:http://dx.doi.org/10.1155/2014/745419
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author Long Cheng
Xiang-bao Meng
Shan Lu
Ting-ting Wang
Yue Liu
Gui-bo Sun
Xiao-bo Sun
author_facet Long Cheng
Xiang-bao Meng
Shan Lu
Ting-ting Wang
Yue Liu
Gui-bo Sun
Xiao-bo Sun
author_sort Long Cheng
collection DOAJ
description Traditional Chinese medicines largely lack adequate and scientifically rigorous evidence regarding efficacy and functional mechanisms. The present study was aimed to confirm the hypoglycemic effect of Tangningtongluo (TNTL) formula, a traditional Chinese Miao medicine, in two animal models: high-fat diet and streptozotocin- (STZ-) induced diabetic rats and C57BL/KsJ-db/db diabetic mice. After 4 weeks, TNTL intervention in STZ-induced diabetic rats yielded in significant improvement on the glucose tolerance test. Moreover, the islet histopathology showed that oral TNTL reduced the severity of islet necrosis in pancreases tissue. Compared with diabetic controls, a 12-week TNTL treatment regimen (dosages = 0.9, 1.8, and 3.6 g/kg) in db/db mice significantly decreased fasting glucose and HbA1c. Additionally, oral glucose tolerance in TNTL-treated mice improved significantly, compared with diabetic mice receiving metformin. Finally, tissue histopathology and biochemical index evaluations revealed significant improvement in TNTL-treated mice. Taken together, our results show that TNTL exerted a strong hypoglycemic effect in two diabetic rodent animal models, preserving β-cells in the pancreas islet and reducing the risk of diabetic retinopathy and nephropathy.
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institution Kabale University
issn 2314-6745
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language English
publishDate 2014-01-01
publisher Wiley
record_format Article
series Journal of Diabetes Research
spelling doaj-art-348a07b22d384cbfb4625ac78287ee962025-02-03T01:28:00ZengWileyJournal of Diabetes Research2314-67452314-67532014-01-01201410.1155/2014/745419745419Evaluation of Hypoglycemic Efficacy of Tangningtongluo Formula, a Traditional Chinese Miao Medicine, in Two Rodent Animal ModelsLong Cheng0Xiang-bao Meng1Shan Lu2Ting-ting Wang3Yue Liu4Gui-bo Sun5Xiao-bo Sun6Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Ministry of Education, No. 151, Malianwa North Road, Haidian District, Beijing 100193, ChinaKey Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Ministry of Education, No. 151, Malianwa North Road, Haidian District, Beijing 100193, ChinaHeilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, ChinaPharmaceutical College, Harbin University of Commerce, Harbin, Heilongjiang 150076, ChinaXiyuan Hospital, China Academy of Traditional Chinese Medicine, Beijing 100091, ChinaKey Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Ministry of Education, No. 151, Malianwa North Road, Haidian District, Beijing 100193, ChinaKey Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Ministry of Education, No. 151, Malianwa North Road, Haidian District, Beijing 100193, ChinaTraditional Chinese medicines largely lack adequate and scientifically rigorous evidence regarding efficacy and functional mechanisms. The present study was aimed to confirm the hypoglycemic effect of Tangningtongluo (TNTL) formula, a traditional Chinese Miao medicine, in two animal models: high-fat diet and streptozotocin- (STZ-) induced diabetic rats and C57BL/KsJ-db/db diabetic mice. After 4 weeks, TNTL intervention in STZ-induced diabetic rats yielded in significant improvement on the glucose tolerance test. Moreover, the islet histopathology showed that oral TNTL reduced the severity of islet necrosis in pancreases tissue. Compared with diabetic controls, a 12-week TNTL treatment regimen (dosages = 0.9, 1.8, and 3.6 g/kg) in db/db mice significantly decreased fasting glucose and HbA1c. Additionally, oral glucose tolerance in TNTL-treated mice improved significantly, compared with diabetic mice receiving metformin. Finally, tissue histopathology and biochemical index evaluations revealed significant improvement in TNTL-treated mice. Taken together, our results show that TNTL exerted a strong hypoglycemic effect in two diabetic rodent animal models, preserving β-cells in the pancreas islet and reducing the risk of diabetic retinopathy and nephropathy.http://dx.doi.org/10.1155/2014/745419
spellingShingle Long Cheng
Xiang-bao Meng
Shan Lu
Ting-ting Wang
Yue Liu
Gui-bo Sun
Xiao-bo Sun
Evaluation of Hypoglycemic Efficacy of Tangningtongluo Formula, a Traditional Chinese Miao Medicine, in Two Rodent Animal Models
Journal of Diabetes Research
title Evaluation of Hypoglycemic Efficacy of Tangningtongluo Formula, a Traditional Chinese Miao Medicine, in Two Rodent Animal Models
title_full Evaluation of Hypoglycemic Efficacy of Tangningtongluo Formula, a Traditional Chinese Miao Medicine, in Two Rodent Animal Models
title_fullStr Evaluation of Hypoglycemic Efficacy of Tangningtongluo Formula, a Traditional Chinese Miao Medicine, in Two Rodent Animal Models
title_full_unstemmed Evaluation of Hypoglycemic Efficacy of Tangningtongluo Formula, a Traditional Chinese Miao Medicine, in Two Rodent Animal Models
title_short Evaluation of Hypoglycemic Efficacy of Tangningtongluo Formula, a Traditional Chinese Miao Medicine, in Two Rodent Animal Models
title_sort evaluation of hypoglycemic efficacy of tangningtongluo formula a traditional chinese miao medicine in two rodent animal models
url http://dx.doi.org/10.1155/2014/745419
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