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| Birgani,Golshan Arzani; Ahangarpour,Akram; Khorsandi,Layasadat; Moghaddam,Hadi Fathi. |
| ABSTRACT Diabetes is a metabolic disease caused by abnormal insulin secretion or action. In the present study, the effects of betulinic acid (BA, a triterpene) are evaluated on glucose, α-amylase and plasma insulin levels, insulin resistance and the histopathology of pancreatic islets in streptozotocin-nicotinamide (STZ-NA) diabetic mice. Seventy adult male NMRI mice were randomly divided into seven groups: control, sham, diabetic, diabetic treated with BA (10, 20 and 40 mg/kg) and diabetic treated with metformin (200 mg/kg). Diabetes was induced in mice by intraperitoneal injection of streptozotocin 50 mg/kg after a dose of nicotinamide 120 mg/kg. Two weeks after treatment with BA, blood samples were collected for measuring glucose, α-amylase and insulin... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Betulinic acid; Diabetes; Mouse; Streptozotocin-nicotinamide.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000200621 |
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| Cargnin,Simone Tasca; Staudt,Andressa Finkler; Menezes,Camila; Azevedo,Ana Paula de; Fialho,Saara Neri; Tasca,Tiana; Teles,Carolina Bioni Garcia; Gnoatto,Simone Baggio. |
| Trichomonas vaginalis and Leishmania spp. are protozoal species responsible for millions of cases of parasitic diseases worldwide. Considering the potential of natural products and the need for more effective and less toxic alternatives to treat trichomoniasis and leishmaniasis, this study aimed to evaluate the effect of two series of triterpenes derivatives with different modifications at C-3 and C-28 positions of the ursolic acid (UA) and betulinic acid (BA) against trophozoites of Trichomonas vaginalis and promastigotes forms of Leishmania (L.) amazonensis. The compounds modified just at C-3 were the most active. The 3β-acetyl betulinic acid (1b) reduced the trophozoites viability of T. vaginalis at 74%, followed by the 3-oxo ursolic acid and 3-oxo... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Betulinic acid; Leishmania amazonensis; Semisynthesis; Trichomonas vaginalis; Ursolic acid. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100596 |
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