Browsing by Author "Akkan, H. A."

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Anti-Inflammatory Activities of Diethyl-Ether Extracts of Helichrysum Plicatum Dc. and Tanacetum Balsamita L. in Rats
(Academic Journals inc, 2009) Karaca, M.; Ozbek, H.; Akkan, H. A.; Tutuncu, M.; Ozgokce, F.; Him, A.; Bakir, B.
The aim of this study was to investigate anti-inflammatory activity of the diethyl ether extract of Tanacetum balsamita L. subsp. (TB) and Helichrysum plicatum DC. subsp. (HP) in carrageenan-induced inflammation in rats. Lambda carrageenan (0.05 mL) was injected into the subplantar region of the right hind paw to induce inflammation. Control group and the reference group were administered isotonic saline solution and indomethacin, respectively. TB extract was injected in doses of 25, 50 and 100 mg kg(-1) in the groups TB-25, TB-50 and TB-100, respectively. HP-25 HP-50 and HP-100 groups were injected HP extract in doses of 25, 50 and 100 mg kg(-1). Before the injections and 3 h after the injections the volume of right hind-paw of rats was measured using a plethysmometer. TB and HP had anti-inflammatory effects matching to that of the reference agent at all doses. It was found that reduction in the inflammation was 95.21% with indomethacin, 51.93% with TB-25, 52.55% with TB-50, 61.51% with TB-100, 70.73% with HP-25, 73.15% with HP-50 and 82.90% with HP-100. Median effective dose (ED50) value of TB and HP were found to be 81.484 and 73.030 mg kg(-1), respectively. The results showed that Tanacetum balsamita L. subsp. and Helichrysum plicatum DC. subsp. had a significant anti-inflammatory activity.
The Effects of Diethylether Extract of Helichrysum Plicatum Dc. Subsp Plicatum and Tanacetum Balsamita L. Subsp Balsamitoides (Sch Bip.) Grierson (Asteraceae) on the Acute Liver Toxicity in Rats
(Academic Journals inc, 2010) Tutuncu, M.; Ozbek, H.; Karaca, M.; Akkan, H. A.; Bayram, I.; Cengiz, N.; Him, A.
The aim of this study was to investigate the effects of the diethylether extract of Helichrysum plicatum DC. subsp. plicatum (HP) and Tanacetum balsamita L. subsp. balsamitoides (Sch. Bip.) Grierson (Asteraceae) (TB) in carbontetrachloride (CCl(4))-induced acute liver toxicity in rats. Acute liver toxicity was induced by injecting CCl(4) (0.8 mL kg(-1)) intraperitoneally for 7 days. The control group received isotonic saline only. The reference group received 50 mg kg(-1) silibinin. TB and HP extract was injected in doses of 25, 50 and 100 mg kg(-1). Body weights were measured daily during the experiment. On the 8th day of the experiments blood and liver samples were collected. Serum Alanine aminotransferase (ALT) and Aspartate aminotransferase (AST) were measured in serum samples. Tissue samples were evaluated histopathologically. Some of the rats in TB and HP groups died during the experiments. Serum ALT levels were higher in the TB and HP groups than those in the CCl(4) group. Histopathological findings were similar in the CCl(4), TB and HP groups. The body weight loss was more in the TB and HP groups compared to that of the CCl(4) group. It is concluded that the diethylether extract of Helichrysum plicatum DC. subsp. plicatum and Tanacetum balsamita L. subsp. balsamitoides (Sch. Bip.) Grierson (Asteraceae) did not have a protective effect in carbontetrachloride (CCl(4))-induced acute liver toxicity in rats and even exacerbated the toxicity.