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Wyszukujesz frazę "Alloxan" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
Appraisal of Phytochemical Properties and Antidiabetic Activities of Tetracarpidium conophorum (Mull. Arg.) Ethanolic Leaves Extracts in Alloxan-Induced Diabetic Rats
Autorzy:
Eneh, Grace D. O.
Okon, Okon G.
Essien, Nsikak B.
Okon, Joseph E.
Powiązania:
https://bibliotekanauki.pl/articles/1158773.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Albino Rats
Alloxan
Antidiabetic
Diabetes
Glibenclamide
Phytochemicals
Tetracarpidium conophorum
Opis:
The phytochemical properties of the ethanolic leaves extract of Tetracarpidium conophorum and its antidiabetic properties on alloxan-induced diabetic albino rats were evaluated. The qualitative phytochemical screening revealed the presence of alkaloids, tannins, saponins, terpenes, flavonoids, cardiac glycosides and anthraquinones in T. conophorum leaf extract. Quantitative phytochemical screening of T. conophorum revealed the presence of saponins (8.77 ± 1.15 mg/kg), tannins (7.84 ± 0.62 mg/kg), alkaloids (5.49 ± 0.14 mg/kg), flavonoids (5.26 ± 0.16 mg/kg), cardiac glycosides (2.13 ± 0.45 mg/kg), terpenes (1.47 ± 0.30 mg/kg) and anthraquinones (1.33 ± 0.18 mg/kg). The toxicity test of the extracts produced various degree of toxicity ranging from writhing, decreased respiration, convulsion to mortality. The intensities of these effects were proportional to the dose administered. The LD50 for T. conophorum was 1369.31 mg/kg. The results of the influence of ethanolic leaves of T. conophorum on alloxan-induced diabetic rats showed significant (p<0.05) reduction in the blood glucose level (BGL) as time of treatments increases. The leaves extracts of T. conophorum significantly (p<0.05) decreased the blood glucose level of diabetic rats on day 14 compared to diabetic untreated (control) rats. The BGL of diabetic rats treated with oral hypoglycemic agent alone were significantly (p<0.05) different from control group on day 14. The presence of these biologically active compounds suggest that the plant could serve as potential sources of drugs and their secondary metabolites could exert some biological activities when taken by animals. The extracts of T. conophorum also produced a similar reduction in blood sugar level as the standard hypoglycemic drug (Glibenclamide). This may be due to its ability to enhance insulin secretion like the standard drug. This positive result confirms why herbalists use this leaf for the management of diabetes.
Źródło:
World Scientific News; 2018, 114; 218-229
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis, Characterization and Anti-diabetic activity of 1,3,5-triaryl-2-pyrazolines in acetic acid solution under Ultrasound Irradiation
Autorzy:
Emayavaramban, M.
Santhi, N.
Gopi, C.
Manivannan, C.
Raguraman, A.
Powiązania:
https://bibliotekanauki.pl/articles/412176.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Chalcone
Pyrazoline
ultrasound irradiation
Anti-diabtic activity and Alloxan Monohydrate
Opis:
A chalcone was prepared by the reaction of 4-methylbenzaldehyde with 4-methylacetophenone in dilute methanolic sodium hydroxide solution under ultrasonic irradiationin the water bath of an ultrasonic cleaner at room temperature. Treatment of this chalcone with thiosemicarbazide / semicarbazide hydrochloride / benzhydrazide / benzenesulphonyl hydrazide / phenylhydrazine hydrochloride afforded the corresponding 2-pyrazoline in good yields. All the new compounds have been characterized by IR, 1H-NMR, 13CNMR spectral data. All the target compounds were evaluated for their in-vivo anti - diabetic activity in rates in comparison with as reference drug.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 9, 2; 172-185
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in antioxidant status of heart muscle tissue in experimental diabetes in rabbits.
Autorzy:
Gumieniczek, Anna
Hopkała, Hanna
Wójtowicz, Zbigniew
Nikołajuk, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/1043793.pdf
Data publikacji:
2002
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
heart muscle tissue
antioxidant status
alloxan-induced diabetes
lipid peroxidation
oxidative stress
Opis:
The present study was designed to evaluate the oxidative stress-related parameters in alloxan-induced diabetes in rabbits. After 3, 6, 12 and 24 weeks of hyperglycaemia the enzymatic and non-enzymatic factors were measured in heart tissue of diabetic and control groups. Superoxide dismutase and glutathione peroxidase activities and the contents of total sulfhydryl compounds significantly increased at all time intervals. Catalase activity increased initially (after 3 and 6 weeks), decreased after 12 weeks and increased again at the 24th week of the experiment. Glutathione reductase activity increased initially (at 3rd week), decreased below control level after 6 and 12 weeks, then increased again. Ascorbic acid concentration decreased after 3 and 6 weeks, and increased at the 12th and 24th weeks. The level of lipid peroxidation products was reduced after 3, 6 and 12 weeks of the experiment. After 24 weeks it was significantly elevated. These data suggest that hyperglycaemia induces oxidative stress in the heart but the defense mechanisms in the heart tissue are fairly efficacious against oxidative injury.
Źródło:
Acta Biochimica Polonica; 2002, 49, 2; 529-535
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Free radical scavengers can modulate the DNA-damaging action of alloxan.
Autorzy:
Blasiak, Janusz
Sikora, Agnieszka
Czechowska, Agnieszka
Drzewoski, Józef
Powiązania:
https://bibliotekanauki.pl/articles/1043667.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
vitamin C
spin trapping
free radicals
alloxan
vitamin E
DNA damage
ebselen
comet assay
DNA repair
diabetes mellitus
Opis:
Alloxan can generate diabetes in experimental animals and its action can be associated with the production of free radicals. It is therefore important to check how different substances often referred to as free radical scavengers may interact with alloxan, especially that some of these substance may show both pro- and antioxidant activities. Using the alkaline comet assay we showed that alloxan at concentrations 0.01-50 μM induced DNA damage in normal human lymphocytes in a dose-dependent manner. Treated cells were able to recover within a 120-min incubation. Vitamins C and E at 10 and 50 μM diminished the extent of DNA damage induced by 50 μM alloxan. Pre-treatment of the lymphocytes with a nitrone spin trap, α-(4-pyridil-1-oxide)- N-t-butylnitrone (POBN) or ebselen (2-phenyl-1,2-benzisoselenazol-3(2H)-one), which mimics glutathione peroxides, reduced the alloxan-evoked DNA damage. The cells exposed to alloxan and treated with formamidopyrimidine-DNA glycosylase (Fpg) and 3-methyladenine-DNA glycosylase II (AlkA), enzymes recognizing oxidized and alkylated bases, respectively, displayed greater extent of DNA damage than those not treated with these enzymes. The results confirmed that free radicals are involved in the formation of DNA lesions induced by alloxan. The results also suggest that alloxan can generate oxidized DNA bases with a preference for purines and contribute to their alkylation.
Źródło:
Acta Biochimica Polonica; 2003, 50, 1; 205-210
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Macrophages in Diabetes Mellitus: A Review on Understanding of Macrophage Function
Autorzy:
Chatterjee, Susraba
Guria, Srikanta
Powiązania:
https://bibliotekanauki.pl/articles/1059398.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Alloxan
Beta-cell Therapy
Cytokines
Diabetes mellitus
Diabetic Nephropathy
Diabetic Retinopathy
Macrophage
Macrophage Type 1
Macrophage Type 2
Streptozotocin
Opis:
Diabetes mellitus (DM) causes millions of deaths all over the world. Immune system contains macrophages that play very important role in DM. Excessive secretion of different cytokines can induce the DM development. Diabetes mellitus (DM) also affect the function of macrophage. We review the important findings regarding the role of macrophage in DM. This review may emphasize future direction towards development of novel immune-modulatory therapeutic intervention.
Źródło:
World Scientific News; 2019, 134, 2; 319-325
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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