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RETRACTED ARTICLE

RETRACTED: Anti-diabetic activity of Swertia corymbosa (Griseb.) Wight ex C.B. Clarke aerial parts extract in streptozotocin induced diabetic rats.
J Ethnopharmacol. 2014 02 12; 151(3):1175-1183.JE

Abstract

ETHNOPHARMACOLOGICALS RELEVANCE

Swertia corymbosa locally called as Shirattakuchi have a long history of use in Ayurveda herbal preparations in Indian traditional system of medicine. It has been used in folklore medicine for the treatment of diabetes.

AIM OF THE STUDY

The present study aimed to investigate the effect of the methanolic extract of Swertia corymbosa (SC) in diabetic and to analyze its chemical composition by HPLC-ESI/MS that may correlate with their pharmacological activities.

MATERIALS AND METHODS

The in vitro anti-diabetic activity of the extracts was measured by using α-glucosidase and α-amylase enzyme inhibitory activity. The methanolic extract of Swertia corymbosa were administered orally (125, 250 and 500 mg/kg, for 28 days) to streptozotocin-induced diabetic rats. Hypoglycemic effects, oral glucose tolerance test, change in body weight and lipid profile, biochemical analysis and histopathological examination were assessed. High-performance liquid chromatography-electrospray ionization/mass spectrometry (HPLC-ESI/MS) method was also developed to analyze the chemical composition.

RESULTS

In vitro anti-dabetic study, the methanol extract of SC is found to be a potent inhibitor of α-glucosidase and α-amylase activity. Oral administration of SC and standard drug for 28 days caused a significant decrease in the concentrations of blood glucose level, total cholesterol (TC), serum triglycerides (TGs), low-density lipoprotein-cholesterol (LDL-C), malondialdehyde (MDA) and significant increase in the concentrations of high density lipoprotein-cholesterol (HDL-C), serum insulin and body weight. Furthermore, activities of antioxidative enzymes, including SOD, GPx, GSH and CAT were enhanced dosed dependently with SC. Histopathological studies of the pancreas showed the regeneration of the β-cells by extract which were earlier necrosed by streptozotocin. Ten major compounds such as loganic acid (1), swertiamarin (2), sweroside (3), gentiopicroside (4), isovitexin (5), amoroswertin (6), amarogentin (7), gentiacaulein (8), decussatin (9) and swertianin (10) were analyzed by HPLC-ESI/MS system.

CONCLUSIONS

These results demonstrate that SC aerial parts of methanolic extract is an effective anti-diabetic and antioxidant activities which provides the scientific proof for the folklore medicine.

Authors+Show Affiliations

Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore 641046, Tamilnadu, India. Electronic address: mahendran0007@gmail.com.Department of Pharmacology, Nandha College of Pharmacy and Research Institute, Erode 638052, India.Department of Pharmacology, Nandha College of Pharmacy and Research Institute, Erode 638052, India.Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore 641046, Tamilnadu, India.

Pub Type(s)

Journal Article
Retracted Publication

Language

eng

PubMed ID

24378350

Citation

Mahendran, G, et al. "RETRACTED: Anti-diabetic Activity of Swertia Corymbosa (Griseb.) Wight Ex C.B. Clarke Aerial Parts Extract in Streptozotocin Induced Diabetic Rats." Journal of Ethnopharmacology, vol. 151, no. 3, 2014, pp. 1175-1183.
Mahendran G, Thamotharan G, Sengottuvelu S, et al. RETRACTED: Anti-diabetic activity of Swertia corymbosa (Griseb.) Wight ex C.B. Clarke aerial parts extract in streptozotocin induced diabetic rats. J Ethnopharmacol. 2014;151(3):1175-1183.
Mahendran, G., Thamotharan, G., Sengottuvelu, S., & Narmatha Bai, V. (2014). RETRACTED: Anti-diabetic activity of Swertia corymbosa (Griseb.) Wight ex C.B. Clarke aerial parts extract in streptozotocin induced diabetic rats. Journal of Ethnopharmacology, 151(3), 1175-1183. https://doi.org/10.1016/j.jep.2013.12.032
Mahendran G, et al. RETRACTED: Anti-diabetic Activity of Swertia Corymbosa (Griseb.) Wight Ex C.B. Clarke Aerial Parts Extract in Streptozotocin Induced Diabetic Rats. J Ethnopharmacol. 2014 02 12;151(3):1175-1183. PubMed PMID: 24378350.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - RETRACTED: Anti-diabetic activity of Swertia corymbosa (Griseb.) Wight ex C.B. Clarke aerial parts extract in streptozotocin induced diabetic rats. AU - Mahendran,G, AU - Thamotharan,G, AU - Sengottuvelu,S, AU - Narmatha Bai,V, Y1 - 2013/12/27/ PY - 2013/06/07/received PY - 2013/11/23/revised PY - 2013/12/19/accepted PY - 2014/1/1/entrez PY - 2014/1/1/pubmed PY - 2014/9/27/medline KW - Anti-diabetic KW - Antioxidant activity KW - Biochemical estimation KW - Lipid profile KW - Swertia corymbosa SP - 1175 EP - 1183 JF - Journal of ethnopharmacology JO - J Ethnopharmacol VL - 151 IS - 3 N2 - ETHNOPHARMACOLOGICALS RELEVANCE: Swertia corymbosa locally called as Shirattakuchi have a long history of use in Ayurveda herbal preparations in Indian traditional system of medicine. It has been used in folklore medicine for the treatment of diabetes. AIM OF THE STUDY: The present study aimed to investigate the effect of the methanolic extract of Swertia corymbosa (SC) in diabetic and to analyze its chemical composition by HPLC-ESI/MS that may correlate with their pharmacological activities. MATERIALS AND METHODS: The in vitro anti-diabetic activity of the extracts was measured by using α-glucosidase and α-amylase enzyme inhibitory activity. The methanolic extract of Swertia corymbosa were administered orally (125, 250 and 500 mg/kg, for 28 days) to streptozotocin-induced diabetic rats. Hypoglycemic effects, oral glucose tolerance test, change in body weight and lipid profile, biochemical analysis and histopathological examination were assessed. High-performance liquid chromatography-electrospray ionization/mass spectrometry (HPLC-ESI/MS) method was also developed to analyze the chemical composition. RESULTS: In vitro anti-dabetic study, the methanol extract of SC is found to be a potent inhibitor of α-glucosidase and α-amylase activity. Oral administration of SC and standard drug for 28 days caused a significant decrease in the concentrations of blood glucose level, total cholesterol (TC), serum triglycerides (TGs), low-density lipoprotein-cholesterol (LDL-C), malondialdehyde (MDA) and significant increase in the concentrations of high density lipoprotein-cholesterol (HDL-C), serum insulin and body weight. Furthermore, activities of antioxidative enzymes, including SOD, GPx, GSH and CAT were enhanced dosed dependently with SC. Histopathological studies of the pancreas showed the regeneration of the β-cells by extract which were earlier necrosed by streptozotocin. Ten major compounds such as loganic acid (1), swertiamarin (2), sweroside (3), gentiopicroside (4), isovitexin (5), amoroswertin (6), amarogentin (7), gentiacaulein (8), decussatin (9) and swertianin (10) were analyzed by HPLC-ESI/MS system. CONCLUSIONS: These results demonstrate that SC aerial parts of methanolic extract is an effective anti-diabetic and antioxidant activities which provides the scientific proof for the folklore medicine. SN - 1872-7573 UR - https://www.unboundmedicine.com/medline/citation/24378350/RETRACTED:_Anti_diabetic_activity_of_Swertia_corymbosa__Griseb___Wight_ex_C_B__Clarke_aerial_parts_extract_in_streptozotocin_induced_diabetic_rats_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0378-8741(13)00914-8 DB - PRIME DP - Unbound Medicine ER -