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1.
Inhibition effect of Gynura procumbens extract on UV-B-induced matrix-metalloproteinase expression in human dermal fibroblasts 总被引:1,自引:0,他引:1
Kim J Lee CW Kim EK Lee SJ Park NH Kim HS Kim HK Char K Jang YP Kim JW 《Journal of ethnopharmacology》2011,137(1):427-433
Ethnopharmacological relevance
Gynura procumbens Merr. (Asteraceae) has been used as a traditional remedy for various skin diseases in certain areas of Southeast Asia.Aim of the study
In order to evaluate the protective activity of Gynura procumbens extract on skin photoaging and elucidate its mode of action.Materials and methods
Matrix-metalloproteinase (MMP)-1 and -9 expressions were induced by UV-B irradiation in human primary dermal fibroblasts. MMP-1 expression level was measured by enzyme-linked immunosorbent assay (ELISA) and Western blot analysis. Zymography was employed for evaluating the enzymatic activity of MMP-9. Anti-inflammatory activity and anti-oxidative capacity of the extract were evaluated by ELISA and dichlorodihydrofluorescein diacetate (DCF-DA) assay.Results
The ethanolic extract of Gynura procumbens inhibited MMP-1 expression up to 70% compare to negative control group. The enzymatic activity of MMP-9 was inhibited around 73% by the treatment of 20 μg/mL of the extract. The extract markedly reduced the production of reactive oxygen species (ROS). Gynura procumbens extract showed an inhibitory effect on releasing pro-inflammatory cytokines (IL-6 and IL-8) in human HaCat keratinocyte.Conclusion
The ethanolic extract of Gynura procumbens inhibited MMP-1 and MMP-9 expressions induced by UV-B irradiation via inhibition of pro-inflammatory cytokine mediator release and ROS production. 相似文献2.
Ethnopharmacological relevance
Carissa spinarum Linn. (Apocynaceae), popularly known as Jungle karunda, has been traditionally used as wound healing agent.Aim of the study
To investigate in vivo wound healing and antimicrobial properties of methanolic extract of Carissa spinarum.Materials and methods
The effect of methanolic extract of Carissa spinarum root extracted by cold maceration was evaluated on burn wound model in mice. The wound healing activity of 1% and 2.5% (w/w) extract was assessed by the rate of wound contraction, period of epithelization and hydroxyproline content. Histological study of the granulation tissue was carried out to know the extent of collagen formation in the wound tissue. The antimicrobial activity of extract was also studied against the bacterial and fungal strain using agar dilution method.Results
The results showed that Carissa spinarum root extract has significant wound healing activity as evident from the rate of wound contraction and epithelization. Hydroxyproline expressions and histological parameters were also well correlated with the healing pattern observed. Methanolic extract also exhibited significant antimicrobial activity against all the tested microorganisms.Conclusions
The present study provides a scientific rationale for the traditional use of Carissa spinarum in the management of wounds. 相似文献3.
Muruganantham N Basavaraj KH Dhanabal SP Praveen TK Shamasundar NM Rao KS 《Journal of ethnopharmacology》2011,133(2):897-901
Ethnopharmacological relevance
Leaves of Caesalpinia bonduc (L.) Roxb. (Caesalpiniaceae) have been used by traditional Siddha healer of Malabar region for psoriasis treatment.Aim of the study
To evaluate the Caesalpinia bonduc decoction (CBD), Caesalpinia bonduc hydroalcoholic extract (CBHA) for antipsoriatic activity.Materials and methods
Mouse tail test for psoriasis was used for the evaluation of antipsoriatic activity. Extracts were tested at a dose of 500 mg/kg b.w. and fractions at 250 mg/kg b.w. in Swiss albino mice. Parameters studied in the mouse tail test were changes in epidermal thickness and percentage orthokeratotic values. In vitro antiproliferant assay on HaCaT cell lines and in vitro lipoxygenase inhibition were also carried out.Results
Butanol fraction of Caesalpinia bonduc hydroalcoholic extract (CBHAB) and water fraction of Caesalpinia bonduc hydroalcoholic extract (CBHAW) produced significant orthokeratosis (p < 0.001). In relative epidermal thickness, a significant (p < 0.05) reduction with respect to control was observed in groups treated with retinoic acid, CBD, butanol fraction of Caesalpinia bonduc decoction (CBDB), water fraction of Caesalpinia bonduc hydroalcoholic extract (CBHAW). Maximum antiproliferant activity was shown by CBHA (IC50, 77.5 ± 12.7 μg/ml). In lipoxygenase inhibition assay, water fraction of Caesalpinia bonduc decoction (CBDW) showed maximum activity with an IC50 value of 164.71 ± 4.57 μg/ml.Conclusions
Among all the tested samples only CBHAW showed good activity in the mouse tail test, antiproliferant activity in HaCaT cells and lipoxygenase inhibition assay. Other extracts and fractions showed varying degrees of activity. The present study supports the traditional use of Caesalpinia bonduc leaves for psoriasis treatment. 相似文献4.
Ethnopharmacological relevance
Axonopus Compressus is commonly used by the people of Southern Nigeria to treat different ailment such as common cold and diabetes. This study therefore, evaluated the anti-diabetic effect of the methanolic leaf extract of the plant.Materials and methods
Diabetes was induced in the rats by intraperitoneal (i.p.) injection of alloxan monohydrate at the dose of 180 mg/kg. Three test doses of the extract (250, 500 and 1000 mg/kg) administered per os through gastric gavage to the rats were used in the study. The activity was compared to a standard reference drug (glibenclamide, 2 mg/kg) and a negative control. Blood from the tail snip was used to measure the effects of the extract and drug at 0, 1, 3 and 6 h using autoanalyzer (AccuCheck Active®) glucose kit.Results
Methanolic leaf extract of Axonopus compressus at all the doses (250, 500 and 1000 mg/kg) used caused a respective time dependent and significant (p < 0.0001) reduction (by 31.5%, 19.8% and 24.5%) of the blood glucose levels in the diabetic rats when compared to the negative control group at the 6th hour. However, the reference drug (glibenclamide, 2 mg/kg) decreased the blood glucose levels by 69.9% and the tween 20 solution (negative control) increased the blood glucose level by 15.2% at the 6th hour. Moreso, the extract at the different test doses caused various degrees of reduction of the blood glucose levels of the test rats at 1st, 3rd and 6th hours when compared to the negative control rats.Conclusion
The findings suggest that Axonopus compressus may possess antidiabetic property. 相似文献5.
Gründemann C Gruber CW Hertrampf A Zehl M Kopp B Huber R 《Journal of ethnopharmacology》2011,136(3):444-451
Ethnopharmacological relevance
Leaf extracts of Betula pendula have been traditionally used for the treatment of patients with rheumatoid arthritis (RA) or osteoarthritis.Aim of the study
We investigated the anti-proliferative capacity of an aqueous leaf extract of Betula pendula (BPE) on human primary lymphocytes in vitro, because activated lymphocytes play a major role in the initiation and maintenance of RA.Materials and methods
Lymphocyte proliferation and cell division was measured by the activity of mitochondrial dehydrogenases and by using the membrane-permeable dye carboxyfluorescein diacetate succinimidyl ester (CFSE), respectively. Apoptosis was analyzed by surface staining of phosphatidylserine and intracellular activation of effector caspases 3 and 7 in comparison to the drug methotrexate using flow cytometric and photometrical analysis. In addition, the impact of the extract on cell cycle distribution was investigated by propidium iodide staining of DNA. For the bioassays BPE concentrations of 10-160 μg/mL were investigated. A phytochemical analysis, using LC-MS and HPLC, was conducted to identify the polyphenolic constituents of the birch leaf extract.Results
Leaf extracts of Betula pendula inhibited the growth and cell division (CD8+: 40 μg/mL: 45%; 80 μg/mL: 60%; 160 μg/mL: 87%) (CD4+: 40 μg/mL: 33%; 80 μg/mL: 54%; 160 μg/mL: 79%) of activated, but not of resting T lymphocytes in a significant dose-dependent manner. The inhibition of lymphocyte proliferation due to apoptosis induction (compared to untreated control: 40 μg/mL: 163%; 80 μg/mL: 240%; 160 μg/mL: 348%) and cell cycle arrest was comparable to that of methotrexate. LC-MS analyses showed that the extract contains different quercetin-glycosides.Conclusion
Our results give a rational basis for the use of Betula pendula leaf extract for the treatment of immune disorders, like rheumatoid arthritis, by diminishing proliferating inflammatory lymphocytes. 相似文献6.
Di Viesti V Carnevale G Zavatti M Benelli A Zanoli P 《Journal of ethnopharmacology》2011,134(2):514-517
Aim of the study
To evaluate the influence of Humulus lupulus extract on sexual behavior in female rats.Materials and methods
Ovariectomized rats hormonally primed with estradiol benzoate (1.5 μg/rat) and progesterone (500 μg/rat) were acutely treated by oral gavage with Humulus lupulus extract dosed at 5, 10 and 25 mg/kg and then tested for partner preference and sexual receptivity.Results
The administration of Humulus lupulus extract at the highest dose significantly increased the preference for the stimulus male during the partner preference test and the number of proceptive behaviors during the receptivity test, without affecting the lordosis response.Conclusions
Humulus lupulus extract increased sexual motivation in hormone-primed female rats. 相似文献7.
Ethnopharmacological relevance
Chiliadenus iphionoides (Boiss. & Blanche) Brullo (Asteraceae), a small aromatic shrub found throughout Israel, is used traditionally in the treatment of diabetes mellitus. In this study, Chiliadenus iphionoides anti-diabetic activity was characterized using cellular and animal models.Materials and methods
Pancreatic β cells, adipocytes, and skeletal myotubes were treated with an ethanolic extract of Chiliadenus iphionoides to study the extract's effects on insulin secretion and glucose uptake. The sand rat (Psammomys obesus) was used to study Chiliadenus iphionoides acute and long term effects in vivo. An oral starch tolerance test was performed as well as a 30 day feeding study.Results
Chiliadenus iphionoides extract increased insulin secretion in β cells as well as glucose uptake in adipocytes and skeletal myotubes. The extract also displayed hypoglycemic activity in the diabetic sand rat.Conclusions
Chiliadenus iphionoides exhibits considerable anti-diabetic activity, although the mechanism of action remains to be determined. 相似文献8.
Ethnopharmacological relevance
The present experiment was conducted to search out the effect of hydro-methanolic extract of seed of Holarrhena antidysenterica on intestinal α-glucosidase activity in dose dependent manner and on the management of postprandial hyperglycemia in starch loaded rats.Materials and methods
Activity of intestinal α-glucosidase was measured by in vitro method. Fasting blood glucose level was determined by single touch glucometer. Total phenol and flavonoids of seed extract of Holarrhena antidysenterica were estimated using gallic acid and quercetin standard curves, respectively.Results
The degree of elevation in blood glucose level after starch administration was significantly (p < 0.05) less by the extract in respect to the control. The said extract also inhibited α-glucosidase activity having an IC50 of 0.52 mg/ml. Phytochemical study revealed that the extract is rich in phenolic compounds (60.23 mg of gallic acid equivalent/g of extract) and flavonoids (360.23 mg of quercetin equivalent/g of the extract).Conclusion
The extract exerts its antihyperglycemic effect by retarding the carbohydrate absorption from intestine through the inhibition in α-glucosidase activity and therefore resists postprandial hyperglycemia. 相似文献9.
Younghwa Kim 《Journal of ethnopharmacology》2010,131(3):550-135
Aim of the study
This study is to elucidate the involvement of anti-inflammatory heme oxygenase-1 (HO-1) in the inhibitory activity of a Chrysanthemum boreale Makino (CB) extract on nitric oxide (NO) production and inducible nitric oxide synthase (iNOS) expression in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages.Materials and methods
Cell viability and NO assay were performed. In addition, iNOS expression was detected by Western blotting and real-time PCR. HO-1 expression was also evaluated by Western blotting, and blocking HO-1 activity on NO production was performed.Results
The CB extract at the highest concentration (100 μg/ml) significantly inhibited NO production by approximately 90% and suppressed iNOS protein expression by approximately 84.8% compared to LPS-stimulated cells. Furthermore, the CB extract (100 μg/ml) inhibited iNOS mRNA expression in a concentration-dependant manner and suppressed iNOS mRNA expression by 94.8%. The CB extract induced the expression of HO-1 in a dose-dependent manner, and blocking HO-1 activity abolished the inhibitory effects of the CB extract. Moreover, the addition of carbon monoxide such as tricarbonyl dichlororuthenium (II) dimmer (RuCO), a byproduct derived from heme degradation, mimicked the inhibitory action of low concentrations of CB extract.Conclusion
These results suggest that a CB extract has potent anti-inflammatory activity in RAW264.7 macrophages involving the induction of HO-1. 相似文献10.
Soo Ching ChongMohamad Aziz Dollah Pei Pei ChongAbdullah Maha 《Journal of ethnopharmacology》2011,137(1):817-827
Ethnopharmacological relevance
Phaleria macrocarpa (Scheff.) Boerl (Pm) has been shown to reduce cholesterol level in vitro and in vivo experiment.Aim of the study
This study investigated the effects of Pm fruit on weight control and mechanistic basis of its anti-hypercholesterolemic effect in both in vivo and in vitro.Materials and method
In the in vivo study, thirty six male Sprague Dawley were randomized to six groups. Five groups were induced into hypercholesterolemia by giving 3% cholesterol enriched-diet for 52 days while one group acted as control. The rats were then treated with Pm extract (0, 20, 30 and 40 mg/ml) or simvastatin for 84 days. The following parameters were determined: (1) body weight, (2) blood lipid profile (total cholesterol, triglyceride, HDL and LDL) and (3) hepatic LDL receptor (160 kDa and 120 kDa) and PCSK9 proteins. In the in vitro study, HepG2 cells were cultured in serum-free RPMI supplemented with 0.2% BSA with or without LDL and in the presence of Pm extract (0, 0.1, 2, 40 and 1000 μg/ml) or simvastatin (4.60 μg/ml) for 24 h. The abundance of both LDL receptor and PCSK9 proteins and mRNA were investigated.Results
Pm extract significantly (P < 0.05) reduced body weight gain, total cholesterol, triglycerides, HDL LDL levels and upregulated hepatic LDL receptor as well as PCSK9 proteins of hypercholesterolemic rats. These results were supported by studies in HepG2 cells whereby Pm extract also significantly upregulated both LDL receptor and PCSK9 at protein and mRNA levels.Conclusion
This study enhances the potential usage of Pm fruit for controlling the body weight of obese people and for treating hypercholesterolemia. 相似文献11.
Alarcón-Alonso J Zamilpa A Aguilar FA Herrera-Ruiz M Tortoriello J Jimenez-Ferrer E 《Journal of ethnopharmacology》2012,139(3):751-756
Ethnopharmacological relevance
Hibiscus sabdariffa L. (Malvaceae) populary known in Mexico as “Jamaica”, “flor de Jamaica”, has widely used in Mexican Traditional Medicine as antihypertensive and diuretic, although the latter activity has been reported the present work show evidence about the diuretic, natriuretic and potassium-sparing effects.Aim of the study
To evaluate the diuretic activity of Hibiscus sabdariffa aqueous extract on in vivo and in situ models.Materials and methods
The Hibiscus sabdariffa aqueous extract was administrated in increasing doses and evaluated the diuresis produced and disposal of electrolytes. Moreover, in isolated kidney was determined the renal filtration rate with plant extract, furosemide and amiloride.Results
The yield of Hibiscus sabdariffa aqueous extraction was 28.3% and the chemical standardization from 1 g of extract was: 56.5 mg delphinidin-3-O-sambubioside, 20.8 mg/g cyanidin-3-O-sambubioside, 3.2 mg/g quercetin, 2.1 mg/g rutin and 2.7 mg/g chlorogenic acid. The diuretic and natriuretic effect of Hibiscus sabdariffa aqueous extract showed a dose-dependent behavior. The pharmacological constants of natriuretic effect was ED50 = 86 mg/kg and Emax = 0.9 mEq/100 g/5 h. In the model of kidney in situ was observed that renal filtration increased 48% with the aqueous extract of Hibiscus sabdariffa and an additive effect when was perfuse with furosemide.Conclusion
The compound presents in Hibiscus sabdariffa as quercetin had effect on the vascular endothelium causing oxide nitric release, increasing renal vasorelaxation by increasing kidney filtration. Therefore, the diuretic effect of Hibiscus sabdariffa may be mediated by nitric oxide release. 相似文献12.
Aim of the study
To evaluate analgesic effect and anti-inflammatory properties of Schwenckia americana (Solanaceae), a medicinal plant used for treating rheumatic pains and swelling in North-western Nigeria.Materials and methods
Three doses (25 mg/kg, 50 mg/kg and 100 mg/kg) of the crude methanolic extract of Schwenkia americana were evaluated for analgesic and anti-inflammatory activities using acetic acid induced writhing test, formalin induced nociception, and formalin induced hind paw oedema in rats.Results
All doses (25, 50, 100 mg/kg) of the extract tested were effective. The extract at the tested doses produced a percentage inhibition of the acetic acid induced abdominal constriction of (53.3, 58.0 and 86.7%), respectively. A percentage inhibition of the formalin induced nociception of 44.00, 56.04, and 56.04% (early phase) and 33.00, 36.63 and 59.71% (late phase) was also produced. The inhibition of oedema formation increased with increasing dosage from 25 to 100 mg/kg. The crude extract produced a statistically significant analgesic and anti-inflammatory activity comparable to the effect of standard drug (10 mg/kg Piroxicam).Conclusion
This study demonstrated the potential analgesic and anti-inflammatory properties of crude methanolic extract of Schwenkia americana thus justifying its traditional usage. 相似文献13.
Ethnopharmacological relevance
Ficus religiosa Linn is frequently used for the treatment of nervous disorders among Pawara tribe of the Satpuda range, India.Aim of the study
This study aimed to investigate the anticonvulsant activity of the aqueous aerial root extract of Ficus religiosa in chemoconvulsant-induced seizures in mice.Materials and methods
The anticonvulsant activity of the extract (25, 50 and 100 mg/kg, p.o.) was investigated in strychnine-, pentylenetetrazole-, picrotoxin- and isoniazid-induced seizures in mice. Rat ileum and fundus strip preparations were used to study the effect of the extract on acetylcholine (Ach)- and serotonin (5-HT)-induced contractions, respectively.Results
The extract showed no toxicity and protected the animals in the strychnine and pentylenetetrazole tests in a dose-dependent manner. Its effect in the picrotoxin and isoniazid tests, however, was less potent. The extract also exhibited dose-dependent potentiation of Ach in rat ileum but failed to potentiate the effect of 5-HT in rat fundus strip preparation.Conclusions
The results suggest that an orally administered aqueous root extract of Ficus religiosa has dose-dependent and potent anticonvulsant activities against strychnine- and pentylenetetrazole-induced seizures. The observed activities may be ascribed to the appreciable content of zinc and magnesium in the extract. 相似文献14.
Aim of the study
Several extracts of Schinus molle var. areira L. plant proved to be useful for the treatment of different pathologies and for the control of insect pest. Due to these potential uses, it is necessary to study their safety. In this work, we evaluated the effects of subchronic exposure to ethanolic extracts from leaves and fruits of Schinus molle var. areira in mice.Materials and methods
The plant extract was added to the diet at 1 g/kg body weight/day for 90 days. At the end of the exposure, behavioral and functional parameters in a functional observational battery and motor activity in an open field were assessed. Finally, several biochemical and histopathological studies were realized.Results
The exposure to extract from leaves produced an increase in the number of rearings in the open field and of urine pools in the functional observational battery. On the other hand, the exposure to extract from fruits produced an increase in the neutrophil count and a decrease in the lymphocyte count and in the total cholesterol levels. None of the exposures affected the different organs evaluated.Conclusions
Our results suggest that subchronic exposure to ethanolic extracts from leaves and fruits of Schinus molle var. areira should be potentially useful in the treatment of lipid pathologies and safe to use. 相似文献15.
Harel D Khalid SA Kaiser M Brun R Wünsch B Schmidt TJ 《Journal of ethnopharmacology》2011,137(1):620-625
Ethnopharmacological relevance
In agreement with ethnomedicinal reports, the dichloromethane extract of Ageratum conyzoides L. (Asteraceae) was recently shown to be of considerable activity against Trypanosoma brucei rhodesiense, the etiologic agent of East African Human Trypanosomiasis (East African Sleeping Sickness). Isolated compounds, namely, methoxylated flavonoids as well as the chromene derivative encecalol methyl ether, were less active than the crude extract. The activity of the extract was found to decrease considerably while stored in solution. An unstable compound was detected in the fresh extract by HPLC, which was converted rapidly into the encecalol methyl ether while stored in methanolic solution. This compound, deemed to represent a constituent with antitrypanosomal activity, could not be isolated from the extract in intact form.Aim of the study
To elucidate the structure of this unstable compound and to investigate its potential role in the antitrypanosomal activity of the total extract.Materials and Methods
UHPLC/ESI-qQTOF MSMS and NMR data of the degraded product indicated its chemical identity as encecalol angelate (1) which was therefore prepared by total synthesis via a linear six steps synthesis, starting from resorcinol and 2-methylbut-3-en-2-ol.Results
Total synthesis, in an overall yield of 15%, led to pure 1, which was chromatographically and spectroscopically identical with the natural product. The compound degraded in methanol with a half-life of approximately 6 h to yield encecalol methyl ether (2). The antiprotozoal activity of synthetic encecalol angelate against T. brucei rhodesiense as well as T. cruzi, Leishmania donovani and Plasmodium falciparum was investigated and found to be quite low.Conclusions
The synthetic approach applied here for the first time also provides access to the related bioactive chromenes encecalin (7) and encecalol (8) with improved yields compared with reported methods. Encecalol angelate, however, is most likely not responsible for the high antitrypanosomal activity of the freshly prepared dichloromethane extract of A. conyzoides. 相似文献16.
Abdulrashid Umar Bala Y. Muhammad Siti Zaiton Bt. Mat Soad 《Journal of ethnopharmacology》2010,131(1):140-1495
Aim of the study
The present study was aimed to investigate the anti-diabetic potential of the leaves of Tetracera scandens Linn. Merr. (Dilleniaceae) in vivo with regard to prove its efficacy by local herbalists in the treatment of diabetes frailties.Materials and methods
Crude aqueous (AQ) and methanol (MEOH) extracts of the leaves of T. scandens L. were administered to both normal and alloxan induced diabetic male albino rats (Wistar strain). The blood glucose levels were measured at 0, 2, 4, 6 and 8 h after oral administration of AQ and MEOH extracts.Results
Significant reduction in glucose was observed in fasting blood glucose levels in the treated diabetic rats without causing any hypoglycemic effect compared to normal rats. Both polar extracts of the leaves of T. scandens L. exhibited significant anti-hyperglycemic activity at different doses and intervals. The highest anti-hyperglycemic effect (62.5%) was observed by the AQ extract at 0.25 g/kg body weight (b.w.) and MEOH extract (36.5%) at 0.5 g/kg b.w. after 8 h. The significant anti-hyperglycemic activity was found to be comparable with a known oral synthetic hypoglycemic drug, glibenclamide 0.25 mg/kg b.w.Conclusion
This study provides scientific evidence that the leaves of T. scandens L. have anti-diabetic efficacy and justifies its utility by local herbalists. However, more experiments at the clinical levels are required to confirm the utility of this plant by traditional practitioners in the management of diabetes mellitus. 相似文献17.
Yogesh HS Chandrashekhar VM Katti HR Ganapaty S Raghavendra HL Gowda GK Goplakhrishna B 《Journal of ethnopharmacology》2011,134(2):334-338
Ethnopharmacological relevance
Traditionally Berberis aristata is employed for its supposed properties in treatment of joint pain and also used in alleviating symptoms of menopause.Aim of the study
The aim of the present study is to evaluate the antiosteoporotic effect of Berberis aristata in ovariectomized (OVX) rats.Materials and methods
Sprague-Dawley rats were divided into sham and OVX groups. The OVX rats were further divided into four groups, which received standard estrogen (0.0563 mg/kg) and 100, 300, and 500 mg/kg aqueous-methanol extract of Berberis aristata, daily for 42 days. The uterine weight, bone loss, ash content, biomechanical, biochemical and histopathological observation were carried out for antiosteoporotic activity.Results
The experimental animals treated with Berberis aristata aqueous-methanol extract showed dose dependent activity. The significant increase in uterine weight, femur BMD, ash content and lumbar hardness were observed. In addition, increased levels of calcium and phosphorus in serum and significant decreased in urine were observed as compared to control OVX group. The histopathological results also confirm the protective effect of extract.Conclusion
The present findings strongly suggest that Berberis aristata possess the potent antiosteoporosis activity in ovariectomized rats and substantiates the ethnic use in treatment of postmenopausal osteoporosis. 相似文献18.
Bayir Y Halici Z Keles MS Colak S Cakir A Kaya Y Akçay F 《Journal of ethnopharmacology》2011,138(2):408-414
Ethnopharmacological relevance
Since ancient times, various herbal preparations have been used in treatment of urolithiasis, which is basically formation of calcium oxalate stones in kidney. The aim of our study is to assess the effects of Helichrysum plicatum DC. subsp. plicatum (HP) as a preventive agent in experimentally induced urolithiasis model in rats.Materials and methods
The efficacy of 125, 250, and 500 mg/kg HP extract was studied in 1% ethylene glycol and 1% ammonium chloride-induced urolithiasis for 21 days in rats. The weight difference and the levels of calcium, magnesium, phosphorus, urea nitrogen, creatinine and uric acid in both serum and 24 h-urine were measured. The calcium oxalate (CaOx) and pH were defined in urine. Histo-pathological analyses in kidneys were also performed.Results
The rats’ weights were higher in HP groups than urolithiasis group. Urolithiasis caused a significant increase in both serum and urine biochemical parameters compared to healthy rats. HP extract decreased levels of these parameters. Urine CaOx level was high in urolithiasis rats, whereas it was decreased by HP extract. Histopathological examinations revealed extensive intratubular crystal depositions and degenerative tubular structures in urolithiasis group, but not in HP treatment groups.Conclusion
More studies will be necessary to elucidate the antiurolithiatic activity of HP. Nonetheless, having a beneficial effect in preventing and eliminating CaOx deposition into kidneys, HP extract may be a potential drug for urolithiasis treatment. 相似文献19.
Jin Lee 《Journal of ethnopharmacology》2010,131(1):210-215
Ethnopharmacological relevance
Styrax japonica Siebold et al Zuccarini (SJSZ) has been used to heal inflammation and bronchitis as an herbal plant in Korea.Aims of the study
The purpose of the present study is to determine whether the ethanol (EtOH) extract of SJSZ induces the programmed cell death (apoptosis) in human hepatoma HepG2 cells.Materials and methods
It was evaluated cytotoxicity using MTT assay, amount of intracellular reactive oxygen species (iROS) and Ca2+ using fluorescence. Activities of apoptotic relevant factors [Bid, cytochrome c, caspase-9, -3, and poly-(ADP-ribose) polymerase (PARP)] were measured by Western blot.Results
The results in this study indicated that ethanol extract of SJSZ (75 μg/ml) stimulates to increase amount of iROS, Ca2+, and the apoptotic relevant factors [Bid, cytochrome c, caspase-9, -3, and poly-(ADP-ribose) polymerase (PARP) in the HepG2 cells.Conclusion
The results in this study indicated that ethanol extract of SJSZ (75 μg/ml) induces programmed cell death (apoptosis) in the HepG2 cells. Therefore, we speculate that ethanol extract of SJSZ could be used for healing of hepatocarcinoma as one of chemotherapeutic agents. 相似文献20.
Adams M Gschwind S Zimmermann S Kaiser M Hamburger M 《Journal of ethnopharmacology》2011,135(1):43-47