Evaluation of the antidiarrheal activity of 80% methanol extract and solvent fractions of the leaf of Bersama abyssinica fresen (Melianthaceae) in mice

Abstract Introduction The use of traditional medicinal plants in the management of diarrhea has long been practiced in Ethiopia. B. abyssinica fresen is one of the plants traditionally used to treat diarrhea whereas an in vivo study had not yet been conducted. Thus, this study aimed to evaluate the antidiarrheal activity of crude extract and solvent fractions of the leaf of B. abyssinica in mice. Methods Cold maceration within 80% methanol was used to extract the leaf powder and extract of the leaf was fractionated using n-hexane, chloroform, and distilled water. The in vivo antidiarrheal activity of crude extracts and solvent fractions were tested in experimental models of castor oil-induced diarrhea, enteropooling, and antimotility test. Five groups each with 6 mice were used under the three antidiarrheal models. Positive controls were treated with loperamide 3 mg/kg and atropine 5 mg/kg and 2% tween 80 was used in the treatment of negative controls. The extract and solvent fractions were administered at doses of 100, 200, and 400 mg/kg. Time of onset of diarrhea, number and weight of total and wet feces, the percent reduction in the number of wet feces, weight and volume of intestinal contents, and percent inhibition of intestinal motility were recorded. Data were analyzed using SPSS version 20. Result Defecation of castor oil-induced diarrheal or loose stools was inhibited (p < 0.01 to p < 0.001) at 200 mg/kg and 400 mg/kg of crude extract and aqueous fraction. The crude extract and the aqueous fraction at three doses (p < 0.01 to p < 0.001), the chloroform fraction at 200 mg/kg and 400 mg/kg (p < 0.01 to p < 0.001), and the n-hexane fraction at 400 mg/kg (p < 0.05) reduced intraluminal fluid accumulation compared with the negative control. Castor oil-induced intestinal motility was significantly suppressed with the three-doses of aqueous fraction (p < 0.05 to p < 0.001), 200 mg/kg and 400 mg/kg of crude extract (p < 0.05 to p < 0.01), 400 mg/kg of chloroform and n-hexane (p < 0.01 to p < 0.001) compared with negative control. Conclusion The crude extract, aqueous, and chloroform fractions of B. abyyssinica leaves have promising anti-diarrheal effects, supporting the plant's traditional use to treat diarrhea.

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Methanolic Crude Extract of Hagenia abyssinica Possesses Significant Antidiarrheal Effect: Evidence for In Vivo Antidiarrheal Activity

Evidence-based Complementary and Alternative Medicine ◽

10.1155/2021/9944629 ◽

2021 ◽

Vol 2021 ◽

pp. 1-8

Author(s):

Zemene Demelash Kifle ◽

Seyfe Asrade Atnafie ◽

Tesfaye Yimer Tadesse ◽

Teshome Fentik Belachew ◽

Birhanu Berihun Kidanu

Keyword(s):

Crude Extract ◽

Castor Oil ◽

Toxicity Testing ◽

Negative Control ◽

Control Group ◽

Traditional Use ◽

Standard Drug ◽

Hagenia Abyssinica ◽

Antidiarrheal Activity

Background. Hagenia abyssinica is one of the most commonly used medicinal plants for the treatment of diarrhea in Ethiopia. Therefore, this study aimed to evaluate the antidiarrheal effect of methanol crude extract of H. abyssinica leaves in mice. Methods. Acute toxicity testing was conducted using Organization for Economic Cooperation and Development guidelines. The antidiarrheal activity of the crude extract of H. abyssinica was investigated using three animal models such as small intestine transit, enteropooling, and castor oil-induced diarrhea models. The extract was administered at three different doses (100, 200, and 400 mg/kg) to the test groups, while the positive control group received 3 mg/kg of loperamide and the negative control group received 10 ml/kg of vehicle (distilled water). Results. The crude extract of H. abyssinica did not exhibit death at the limit dose (2 g/kg) throughout the observation period. In the castor oil-induced model, the crude extract at a dose of 200 and 400 mg/kg exhibited a significant ( P < 0.05 ) antimotility effect as compared to the negative control. The crude extract revealed a significant reduction in the volume and weight of intestinal contents at 200 and 400 mg/kg doses of the extract. Moreover, the highest antidiarrheal index (ADI) was obtained with the dose of 400 mg/kg of crude extract, which was comparable to the standard drug. Conclusion. The crude extract of Hagenia abyssinica possesses antidiarrheal activity and supports the traditional use of H. abyssinica for the management of diarrhea.

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Evaluation of In Vivo Antidiarrheal Activity of 80% Methanolic Leaf Extract of Osyris quadripartita Decne (Santalaceae) in Swiss Albino Mice

Journal of Evidence-Based Integrative Medicine ◽

10.1177/2515690x19833340 ◽

2019 ◽

Vol 24 ◽

pp. 2515690X1983334 ◽

Cited By ~ 2

Author(s):

Meseret Yigzaw Teferi ◽

Mohammedbirhan Abdulwuhab ◽

Jibril Seid Yesuf

Keyword(s):

Castor Oil ◽

Leaf Extract ◽

Intestinal Content ◽

Negative Control ◽

Standard Drug ◽

Swiss Albino Mice ◽

Antidiarrheal Activity ◽

Albino Mice ◽

Different Doses

The leaf of Osyris quadripartita is traditionally used for the management of diarrhea in different parts of Ethiopia. However, its use has not been scientifically validated for its efficacy. The aim of this study was to investigate antidiarrheal activity of hydroalcoholic leaf extract of O. quadripartita in mice models. Different doses of the methanolic leaf extract of O. quadripartita (100, 200, and 400 mg/kg) were tested for antidiarrheal activity using castor oil–induced diarrhea, enteropooling, and gastrointestinal motility models in Swiss Albino mice. The activities of the extract at different doses were compared with standard drugs and negative control groups of mice. The extract at all tested doses resulted in significant reduction ( P < .01) in number of wet feces, whereas significant reduction ( P < .01) in frequency of defecation in castor oil–induced diarrhea was seen at a dose of 400 mg/kg. It also showed a dose-dependent and significant reduction of volume of intestinal content in the enteropooling model at all tested doses and the observed results in 200 and 400 mg/kg were better than the standard drug, loperamide. However, significant antimotility effect was not observed at any of the tested doses. From these results we can conclude that methanolic leaf extract of O. quadripartita showed antidiarrheal activity.

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Evaluation of the Antispasmodic and Antisecretory Activities of the 80% Methanol Extracts of Verbena officinalis L: Evidence From In Vivo Antidiarrheal Study

Journal of Evidence-Based Integrative Medicine ◽

10.1177/2515690x19853264 ◽

2019 ◽

Vol 24 ◽

pp. 2515690X1985326 ◽

Cited By ~ 1

Author(s):

Mekonnen Sisay ◽

Negussie Bussa ◽

Tigist Gashaw

Keyword(s):

Plant Material ◽

Test Group ◽

Negative Control ◽

Root Extract ◽

Traditional Use ◽

Standard Drug ◽

Methanol Extracts ◽

Group I ◽

Antidiarrheal Activity

Verbena officinalis L. has a folkloric repute for the management of digestive disorders, including diarrhea. However, the safety and efficacy of the plant material has not been scientifically validated yet. This study was, therefore, aimed to evaluate the overall antidiarrheal activity of the 80% methanol extracts of V officinalis in mice. The antidiarrheal activity of the 80% methanol extracts of the roots (R-80ME) and the leaves (L-80ME) of V officinalis was tested in castor oil–induced diarrhea in mice. R-80ME was further evaluated using charcoal meal and entero-pooling. In each test, group I and group II (controls) received 10 mL/kg distilled water and standard drug (5 mg/kg loperamide), respectively, whereas groups III, IV, and V (test groups) received 100, 200, and 400 mg/kg of the 80ME, respectively. The R-80ME at 200 mg/kg ( P < .01) and 400 mg/kg ( P < .001) significantly delayed the onset of diarrhea compared with negative control. Both R-80ME and L-80ME at 200 and 400 mg/kg significantly decreased the frequency of wet fecal outputs ( P < .01). Generally, 70.24% inhibition of the number of wet fecal output was recorded at R-80ME 400 mg/kg. Results from the charcoal meal test revealed that the R-80ME at 200 ( P < .01) and 400 mg/kg ( P < .001) produced a significant antimotility effect. In entero-pooling test, the R-80ME, at 200 and 400 mg/kg doses ( P < .01), showed a significant decline in both the volume and weight of intestinal contents. The maximum in vivo antidiarrheal index was determined to be 95.25 at dose of 400 mg/kg R-80ME. This study demonstrated that the 80ME, mainly the root extract, produced promising antidiarrheal activity and hence provides a scientific support for acclaimed traditional use of the plant material for treatment of diarrheal diseases.

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Antiplasmodial Activity of the Crude Extract and Solvent Fractions of Stem Barks of Gardenia ternifolia in Plasmodium berghei-Infected Mice

Evidence-based Complementary and Alternative Medicine ◽

10.1155/2021/9625169 ◽

2021 ◽

Vol 2021 ◽

pp. 1-16

Author(s):

Dejen Nureye ◽

Muktar Sano ◽

Mesfin Fekadu ◽

Tadesse Duguma ◽

Eyob Tekalign

Keyword(s):

Crude Extract ◽

Plasmodium Berghei ◽

Negative Control ◽

Chloroform Fraction ◽

Oral Toxicity ◽

Aqueous Solvent ◽

Parasite Plasmodium ◽

Evolution Of Resistance

Background. The evolution of resistance to currently used malaria medicines together with the severe economic burden of malaria initiates the search for novel antimalarial drugs. Thus, the present experiment was intended to assess the in vivo antiplasmodial effect of Gardenia ternifolia based on the traditional claims and in vitro antimalarial effect of the plant. Methods. For the crude extraction of stem barks of G. ternifolia, a cold maceration method using hydromethanol as a solvent was employed. The hydroalcoholic extract was then fractionated by three solvents (chloroform, n-butanol, and aqueous solvent) with different polarity indexes. Swiss albino mice infected with the chloroquine-sensitive malaria parasite (Plasmodium berghei) were used in this study. Acute oral toxicity study was done according to standard protocols. Four-day suppressive (hydromethanolic crude extract and solvent fractions), Rane’s (crude extract), and repository (crude extract) tests were used to examine the antiplasmodial effects of the study plant. Results. The chemosuppressive study revealed that all doses of the crude extract and its fractions displayed a significant P < 0.001 inhibition of parasitemia compared with the vehicle (negative control). The crude extract’s highest dose (600 mg/kg) showed the maximum (57.84%) parasitemia suppression during the chemosuppressive test. The crude extract also produced significant P < 0.001 curative and prophylactic effects at all doses in Rane’s and repository tests compared with the negative control. In the 4-day test, the n-butanol fraction produced parasitemia suppression higher than the chloroform fraction but lower than the crude extract. Of these, water fractions demonstrated the lowest chemosuppressive effect. Anthraquinone, alkaloids, flavonoids, saponins, steroids, tannins, and terpenoids were qualitatively detected in the plant material. Conclusion. The current results showed that the hydromethanolic extract and fractions of G. ternifolia stem barks have antiplasmodial action with a high curative effect. Chloroform and n-butanol fractions were more active among the fractions, indicating that the nonpolar and semipolar constituents of the plant are responsible for the antimalarial effects.

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Antidiarrheal Activity of Hydromethanolic Root Extract and Solvent Fractions of Clutia abyssinica Jaub. & Spach. (Euphorbiaceae) in Mice

Evidence-based Complementary and Alternative Medicine ◽

10.1155/2020/5416749 ◽

2020 ◽

Vol 2020 ◽

pp. 1-9

Author(s):

Dessie Zayede ◽

Tafere Mulaw ◽

Wubayehu Kahaliw

Keyword(s):

Gastrointestinal Motility ◽

Castor Oil ◽

Intestinal Content ◽

Treated Group ◽

Negative Control ◽

Root Extract ◽

Aqueous Fraction ◽

Plant Extraction ◽

Test Models ◽

Antidiarrheal Activity

Introduction. Diarrheal diseases are associated with an estimated 1.3 million deaths annually, with most occurring in resource-limited countries; up to 25% of deaths in young children living in Africa and southeast Asia are attributable to acute gastroenteritis. Due to limitations associated with various treatments available, the need for developing newer drugs is imperative. Objective. This study was aimed to evaluate the antidiarrheal activity of root extract and fractions of C. abyssinica Jaub. & Spach. (Euphorbiaceae) in mice. Methods. After plant extraction and subsequent fractionation of the crude extract, the antidiarrheal activity was screened in castor oil induced diarrhea, castor oil induced enteropooling, and gastrointestinal motility test models accordingly. Result. The root extract of C. abyssinica produced neither visible signs of toxicity nor death at a single dose of 2000 mg/kg, suggesting the LD50 > 2000 mg/kg. In the castor oil induced diarrheal model, the highest dose of the extract (400 mg/kg) showed a maximal inhibition in the onset (158.00 ± 14.64, p<0.01, in minutes) of wet feces as compared to the negative control. In the enteropooling model, 400 mg/kg treated mice showed a significant reduction in volume (0.47 ± 0.02 ml, p<0.01) and weight (0.50 ± 0.02 g, p<0.05) of intestinal content as compared to the vehicle treated group. In the gastrointestinal motility test, the hydromethanolic root extract of C. abyssinica significantly inhibited the intestinal transit of charcoal meal at 400 mg/kg. In addition, chloroform and n-butanol fractions significantly reduced the distance moved by charcoal at doses of 200 mg/kg and 400 mg/kg, whereas aqueous fraction showed a significant effect at all test doses. The highest antidiarrheal index was observed at the maximal dose of extract and each fraction. Conclusion. The results obtained showed that the findings provide scientific support for the folkloric repute of C. abyssinica roots as treatment of diarrhea.

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Anticonvulsant Activity of 80% Methanol Leaf Extract and Solvent Fractions of Buddleja polystachya Fresen. (Buddlejaceae) in Mice

Ethiopian Pharmaceutical Journal ◽

10.4314/epj.v36i2.5 ◽

2021 ◽

Vol 36 (2) ◽

pp. 121-130

Author(s):

Tewodros Agedew ◽

Teshome Nedi ◽

Shemsu Umer ◽

Workineh Shibeshi

Keyword(s):

Crude Extract ◽

Anticonvulsant Activity ◽

Leaf Extract ◽

Motor Coordination ◽

Negative Control ◽

Anticonvulsant Effect ◽

Chloroform Fraction ◽

Aqueous Fraction ◽

Number Of Patients ◽

Seizure Models

Epilepsy is a chronic non-communicable disease characterized by recurrent seizures. According to 2019 WHO report, it affects about 50 million people globally and nearly 80% of them live in low-and middleincome countries. Current antiepileptic drugs have several limitations including lack of response in significant number of patients and intolerable adverse drug reactions. Buddleja polystachya Fresen. (Buddlejaceae) is a medicinal plant used for the treatment of epilepsy in Ethiopian traditional medicine, where the dried leaves are crushed, mixed with local alcoholic beverage and taken orally. Thus, this study was conducted to evaluate the anticonvulsant activity of the 80% methanol leaf extract and solvent fractions of B. polystachya in mice models of seizure. The dried and powdered leaves of B. polystachya were extracted using cold maceration with 80% methanol (1:5 w/v), and the resulting crude extract was fractionated using chloroform and n-butanol to get chloroform, n-butanol and aqueous fractions. Anticonvulsant activities of B. polystachya crude extract and solvent fractions at doses of 100, 200 and 400 mg/kg were evaluated using pentylenetetrazol (PTZ) and maximal electroshock (MES)–induced seizures in mice (n = 6). In addition, motor coordination effects were assessed using rotarod test. Sodium valproate (200 mg/kg), phenytoin (25 mg/kg) and diazepam (5 mg/kg) were used as standards for PTZ, MES and rotarod tests, respectively. Distilled water or 2% tween 80 was used as negative control. All doses of the crude extract exhibited a significant (p < 0.001) anticonvulsant property in both PTZ and MES tests compared with negative control. Similarly, the n-butanol fraction exerted significant (p < 0.001) anticonvulsant effects in both seizure models. However, the chloroform fraction (200 and 400 mg/kg) showed a significant (p < 0.001) anticonvulsant effect in only PTZ-induced seizure model. The aqueous fraction was devoid of any anticonvulsant activity in both models. The crude extract and fractions did not exert any significant changes in motor coordination. Preliminary phytochemical screening of the crude extract and solvent fractions revealed the presence of flavonoids, phenols, tannins, steroids, terpenoids and saponins. In conclusion, the results of this study indicated that the plant has a promising anticonvulsant activity and could be considered as a potential source to develop new anticonvulsant drug.

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Antimalarial Activity of Hydromethanolic Crude Extract and Chloroform Fraction of Brucea antidysenterica Leaves in Plasmodium berghei-Infected Mice

Evidence-based Complementary and Alternative Medicine ◽

10.1155/2021/2089114 ◽

2021 ◽

Vol 2021 ◽

pp. 1-14

Author(s):

Tezera Jemere Aragaw ◽

Kefyalew Ayalew Getahun

Keyword(s):

Crude Extract ◽

Plasmodium Berghei ◽

Antimalarial Activity ◽

Negative Control ◽

Chloroform Fraction ◽

Curative Effect ◽

Antimalarial Agents ◽

Different Doses

Background. Different parts of Brucea antidysenterica are used in traditional and alternative medicine in Ethiopia for the treatment of different health problems including malaria and have good in vitro antimalarial activity. However, no in vivo study was conducted to substantiate the claim. Our study planned to determine the antimalarial effect of B. antidysenterica extract. Methods. Swiss albino mice (6–8 weeks old, 20–28 g) were inoculated with Plasmodium berghei. Different doses of both hydromethanolic extract and chloroform fraction were orally given at 100, 200, and 400 mg/kg/day. Results. The parasitemia suppression percent of hydromethanolic crude extract and chloroform fraction in chemosuppressive tests ranged between 33.48 and 75.93% and 38.32 and 76.64%, respectively. The hydromethanolic crude extract and chloroform fraction exhibited the curative effect of 46.75–70.91% and 50.30–80.06% parasitemia suppression, respectively ( p < 0.001), compared with negative control. Conclusion. From our study, it is concluded that the hydromethanolic crude extract and chloroform fraction of B. antidysenterica leaves showed promising antiplasmodial effects against Plasmodium berghei. This upholds the folkloric use of B. antidysenterica leaves and the thought of as a possible source to develop new antimalarial agents.

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Evaluation of In Vivo Antidiarrheal Activity of Solvent Fractions of Hagenia abyssinica (Rosaceae) in Swiss Albino Mice

Evidence-based Complementary and Alternative Medicine ◽

10.1155/2021/8828331 ◽

2021 ◽

Vol 2021 ◽

pp. 1-9

Author(s):

Zemene Demelash Kifle ◽

Birhanu Berihun Kidanu ◽

Tesfaye Yimer Tadesse ◽

Teshome Fentik Belachew ◽

Seyfe Asrade Atnafie

Keyword(s):

Animal Models ◽

Castor Oil ◽

Onset Time ◽

Negative Control Group ◽

Negative Control ◽

Control Group ◽

Significant Activity ◽

Traditional Use ◽

Hagenia Abyssinica ◽

Antidiarrheal Activity

Background. Ethiopia has several medicinal plants that have been used for their antidiarrheal activity. Hagenia abyssinica is the most commonly used medicinal plant for the management of diarrhea in Ethiopia. Thus, this study's aim is to investigate the antidiarrheal effect of solvent fractions of H. abyssinica. Methods. Antidiarrheal activity of extract fractions obtained from different solvents was evaluated by using small intestine transit, enteropooling, and castor oil-induced diarrhea animal models. In all animal models, the solvent fractions treated groups were treated with three different doses (100 mg/kg, 200 mg/kg, and 400 mg/kg) of the solvent fractions, while the negative control group was treated with a vehicle (distilled water), and positive control group was treated with loperamide. Results. The acute toxicity test revealed that the LD50 of H. abyssinica is > 2000 mg/kg. In castor oil-induced, the solvent fractions of H. abyssinica (at 200 mg/kg and 400 mg/kg) significantly ( P < 0.05 –0.001) prolonged the stool frequency, reduced the weight of feces, and delayed diarrheal onset time as compared with the negative control group. The fractions produced a significant ( P < 0.05 ) antimotility effect at the doses of 200 mg/kg and 400 mg/kg as compared to the negative control. All solvent fractions at the middle and higher doses showed a statistically significant dose-dependent reduction in the volume of intestinal contents and weight of the feces. However, the solvent fractions of H. abyssinica at a dose of 100 mg/kg failed to produce a statistically significant activity in all parameters (number of wet feces, the onset of diarrhea, and number of total feces) when compared with the negative control group. Conclusion. The extract fractions obtained from different solvents have shown significant antidiarrheal activity. Thus, this finding supports the claimed traditional use of H. abyssinica leaves for the treatment of diarrhea.

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Antimalarial Activities of Hydromethanolic Crude Extract and Chloroform Fraction of Gardenia ternifolia Leaves in Plasmodium berghei Infected Mice

Evidence-based Complementary and Alternative Medicine ◽

10.1155/2020/6674002 ◽

2020 ◽

Vol 2020 ◽

pp. 1-11

Author(s):

Tezera Jemere Aragaw ◽

Dessie Tegegne Afework ◽

Kefyalew Ayalew Getahun

Keyword(s):

Crude Extract ◽

Plasmodium Berghei ◽

Antimalarial Activity ◽

Negative Control ◽

Malaria Treatment ◽

Species Variation ◽

Chloroform Fraction ◽

Post Hoc

Background. Gardenia ternifolia is utilized in traditional medicine of Ethiopia for malaria treatment and possessing in vitro antimalarial activity. However, no in vivo study was conducted to substantiate the claim. The aim of this study was to judge the antimalarial activity of Gardenia ternifolia extract in vivo in Plasmodium berghei-infected mice. Methods. Plasmodium berghei was inoculated to healthy mice, and hydromethanolic crude extract and chloroform fraction of G. ternifolia leaves at 100 mg/kg/day, 200 mg/kg/day, and 400 mg/kg/day were administered. Percent parasitemia inhibition, percent change in bodyweight, hemoglobin level, and mean survival time were determined. Data were analyzed using one-way ANOVA followed by post hoc Tukey HSD test with IBM SPSS software version 20.0 statistical package and P < 0.05 considered as statistically significant. Results. The chemosuppressive test of hydromethanolic crude extract at 100 mg/kg/day, 200 mg/kg/day, and 400 mg/kg/day ranged from 27.09% to 67.72%, and chloroform fraction had 35.21%–78.19% parasitemia suppression, respectively. For curative test on day 5, hydromethanolic crude extract at 100 mg/kg/day, 200 mg/kg/day, and 400 mg/kg/day ranged from 25.58% to 48.76%, chloroform fraction at 100 mg/kg/day, 200 mg/kg/day, and 400 mg/kg/day and chloroquine base at 10 mg/kg showed 46.36%–74.42% and 92.87% percent parasitemia inhibition, respectively, and also the results to both tests were highly significant ( P < 0.001 ) compared to the negative control. Maximum effects on chemosuppressive, curative, prevention of weight loss, and reduction in hemoglobin were observed at higher doses of the hydromethanolic crude extract and chloroform fraction. Conclusion. From this study, hydromethanolic crude extract and chloroform fraction of G. ternifolia leaves have shown promising antimalarial activity. The findings support the traditional claim of G. ternifolia leaves for malaria treatment; however, species variation could also limit such a straightforward extrapolation of the findings of this study in humans.

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In vivo antidiarrheal study of ethanolic extracts of Mikania cordata and Litsea monopetala leaves

Bangladesh Journal of Pharmacology ◽

10.3329/bjp.v10i3.23402 ◽

2015 ◽

Vol 10 (3) ◽

pp. 562 ◽

Cited By ~ 2

Author(s):

Fatema Nasrin ◽

Md. Lukman Hakim

Keyword(s):

Body Weight ◽

Castor Oil ◽

Leaf Extract ◽

Positive Control ◽

Control Group ◽

P Value ◽

Leaf Extracts ◽

Ethanolic Extracts ◽

Antidiarrheal Activity

In this study the antidiarrheal activity of ethanolic extracts of the leaves of Mikania cordata and Litsea monopetala was evaluated. Diarrhea was induced in mice by oral administration of castor oil (0.5 mL) 30 min after the administration of the extracts. During a 4 hour study the number of diarrheal feces and percentage inhibition of the extracts (200 and 400 mg/kg body weight) was determined. Loperamide (3 mg/kg body weight) served as standard and belonged to the positive control group. The extracts exhibited potent antidiarrheal activity as well as achieved statistically significant p value (p<0.01 and p<0.05) compared to control group. Among the extracts the highest percentage inhibition of defecation (60%) was recorded for leaf extract (400 mg/kg body weight) of L. monopetala. So, the study corroborates the significant antidiarrheal activity of M. cordata and L. monopetala leaf extracts and raises the demand of further sophisticated investigation.

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