scholarly journals Azadirachta indica (A. Juss.) reduces circulating Dirofilaria immitis microfilariae in vivo

2019 ◽  
Author(s):  
Niladri Mukherjee ◽  
Nikhilesh Joardar ◽  
Suprabhat Mukherjee ◽  
Santi P. Sinha Babu

AbstractThe present study enumerates the effectiveness of ethanolic leaf extract of A. indica against circulating microfilariae (mf) of D. immitis in vivo of Canis familiaris. An ethanolic extract was prepared from the leaves of A. indica (EEA) and treated on dogs infected with the filarial nematode Dirofilaria immitis, the causative agent of canine cardiopulmonary dirofilariasis. Before treatment, all the infected dogs were vigilantly supervised for any natural fluctuation of mf count. Two doses; 25 and 50 mg/kg body weight/twice a day; both for 15 days were selected for in vivo tests along with a control group which received an empty capsule during the study period. The highest reduction of circulating mf was counted on day 60, showing mf reduction of 77.9% and 86.7% respectively for the two doses. Thereafter mf density increased with a minor change and maintained reduction of 49.5% and 64.1% on day 180 respectively. Additionally, no appreciable side effects in the treated dogs were recorded as evident from serum toxicity parameter analyses. In conclusion, the ethanolic formulation of A. indica leaves possesses considerable effectiveness against D. immitis in vivo with no toxic modification in the host after exposure. Thus, EEA appears to be a good alternative remedy against heartworm infection in infected dogs.

2016 ◽  
Vol 6 (1) ◽  
pp. 835-847 ◽  
Author(s):  
Ali Khairullah Zahi ◽  
Hazilawati Hamzah ◽  
Mohd Rosly Shaari ◽  
Riyanto Teguh Widodo ◽  
Lucy Johnny ◽  
...  

Lawsonia inermis is one of the most significant plants used in traditional medicine. However, many details of the dermal toxicity of L. inermis remain unknown. The objective of this study is to evaluate the in vivo acute and sub-acute dermal toxicity of ethanolic extract of L. inermis leaves. In acute experiment, a total of 20 rats were divided into four groups of five rats. A total of 30 rats were divided into five groups of six rats for the sub-acute experiment. The extract at a single dose of 2000 and 5000 mg/kg of body weight did not produce treatment-related signs of toxicity or mortality in all rats tested during the 14-day observation period. However, in a repeated dose 28-day study, the application of 500, 1000 and 2000 mg/kg of body weight/day of leaves extract revealed no significant change (p > 0.05) in bodyweight, haematological and biochemical parameters compared with the control group. Similarly, gross pathology and histopathology examinations of liver, kidneys, and skin did not reveal any morphological alteration. Overall, the results show that the close application of L. inermis leaves extract did not have any critically dangerous impact on rats. Subsequently, the concentrate may be employed for pharmaceutical plans.


Author(s):  
Nisrat Jahan ◽  
Nasreen Akter ◽  
Mosiqur Rahman

Aim: The present study was designed to investigate the antidiabetic & hypolipidemic activity of Calotropis gigantean (Family: Apocynaceae) in alloxan-induced diabetic rat model. Study Design: In vivo study was carried out by ethanolic leaf extract was administered in 250 mg/kg body weight concentration and then subjected to different rats models to authenticate the antidiabetic and hyperlipidimic properties of the plant. Place and Duration of Study: Department of Pharmacy, Southeast University, Banani, Dhaka-1213,Bangladesh within a period of July 2018 to December, 2018. Methodology: Diabetes was induced in rats by an intraperitoneal injection (i.p) of alloxan (100 mg/kg B.W). Ethanolic leaf extract of C. gigantean (250 mg/kg B.W) was administrated orally as a single dose per day to the diabetic rats for 7 days. The negative control group received 0.5 ml of sterile normal saline water orally & positive control group received metformin orally. Synergistic effect of plant was evaluated by combination with 100 mg/kg B.W & 50 mg/kg B.W oral administration of metformin. After 7 days study period, fasting blood glucose, total cholesterol, triglyceride, high-density lipoprotein cholesterol, liver weight & body weight were measured only for diabetic group to observe the effects of diabetes induction. Results: Individual plant extract (250 mg/Kg B.W) & Metformin (100 mg/kg B.W) reduced FBG significantly by 52% (P<0.001) & 55.3% (P<0.001) correspondingly. Metformin (100 mg/kg B.W) potentiated reduction (68%) (P<0.001) when combined to plant extract (250 mg/Kg B.W). Significant dose dependent manner was followed when metformin (50 mg/kg B.W) was combined to plant extract (250 mg/Kg B.W). Our results clearly suggests that C. gigantean exhibit hypoglycemic & hypolipidemic activity with an alteration in body-liver weight. The present study also suggested to develop a combination therapy of extract along with metfromin in different doses to minimize the intake of synthetic drug. Significant reduction of TG, TC were noted by extract (250 mg/kg B.W) with 32.42% (P<0.001) & 41.32% (P<0.001) respectively where standard shown the diminution 43.43% (P<0.05) & 47.21% (P<0.001) respectively as compare to Untreated diabetic rats. 50.21% (P<0.01) & 42.38% (P<0.001) reduction of TG & TC were estimated by C.gigantea extracts (250 mg/kg B.W) when combined with Metformin (100 mg/kg B.W). 34.53% (P<0.05) & 41.54% (P<0.001) reduction of TG & TC by C.gigantea extracts (250 mg/kg B.W) were confirmed when combined to Metformin (50 mg/kg B.W). Combination therapy also has shown synergistic effect in elevation of plasma HDL-cholesterol. Conclusion: The results of the study concluded that C. gigantean have potential antidiabetic and antioxidant properties.


2015 ◽  
Vol 14 (1) ◽  
pp. 87-90 ◽  
Author(s):  
Zubair Khalid Labu ◽  
Farhina Rahman Laboni ◽  
Mir Md Abdullah Al Mamun ◽  
Md Sariful Islam Howlader

The present study was designed to investigate the antidiarrhoeal activity and determine the total tannin content of the ethanolic extract of the leaves of Codiaeum variegatum (Family- Euphorbiaceae). The antidiarrhoeal activity was evaluated in castor oil-induced diarrhoea in mice and the total tannin content was determined by using the Folin-Coicalteu phenol reagent. The ethanolic extract of leaves of C. variegatum showed a positive effect on castor oil induced diarrhoea in mice. In the antidiarrhoeal assay the extract inhibited the mean number of defecation by 40.81% and 59.18% (p<0.01 & p<0.001) at 250 mg/kg and 500 mg/kg body weight, respectively. The latent period for the extract treated group was (p<0.01 & p<0.001) increased as compared to control group. The total tannin content was quite significant and high in ethanolic extract (241.41 mg/g of tannic acid equivalent). Phytochemical screenings of the leaf extract indicated the presence of carbohydrate (reducing sugars), gums, steroids, alkaloids and tannins. Therefore, the results of the present study provide the scientific basis for the traditional uses of this plant as remedy for diarrhea.Dhaka Univ. J. Pharm. Sci. 14(1): 87-90, 2015 (June)


2015 ◽  
Vol 10 (3) ◽  
pp. 562 ◽  
Author(s):  
Fatema Nasrin ◽  
Md. Lukman Hakim

<p class="Abstract">In this study the antidiarrheal activity of ethanolic extracts of the leaves of <em>Mikania cordata</em> and <em>Litsea monopetala</em> 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&lt;0.01 and p&lt;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 <em>L. monopetala</em>. So, the study corroborates the significant antidiarrheal activity of <em>M. cordata</em> and <em>L. monopetala</em> leaf extracts and raises the demand of further sophisticated investigation.</p><p> </p>


2016 ◽  
Vol 4 (1) ◽  
pp. 74
Author(s):  
Usunomena Usunobun ◽  
Gabriel Anyanwu

Background: Liver disease and toxicity is common, especially with many drug treatments. The effect of Vernonia amygdalina ethanolic leaf extract post-treatment on rats pre-treated with dimethylnitrosamine (DMN) was evaluated.Methods: Male wistar rats were orally administered DMN (single dose of 25 mg/kg) on first day and thereafter post-treated with 100 and 200mg/kg ethanolic leaf extract of Vernonia amygdalina for seven days. Analysis of serum concentrations of albumin, total protein, total bilirubin and glucose were carried out.Results: Administration of DMN alone to rats significantly increased glucose and total bilirubin concentration (P < 0.05) in the serum while it significantly reduced (P<0.05) serum total protein and albumin concentrations when compared with controls. However, post-treatment of DMN administered rats with 100 and 200 mg/kg ethanolic extract leaf of Vernonia amygdalina significantly (P<0.05) reversed these changes in a concentration dependent manner.Conclusion: In conclusion ethanolic leaf extract of Vernonia amygdalina have a potent hypoglycaemic and hepatoprotective action against dimethylnitrosamine-induced liver damage in rats may be due to its antioxidant properties.


Author(s):  
SANGEETA CHOUDHURY ◽  
BLR MADHAVI

Objective: The aim of this work to formulate, evaluate and compare the effectiveness of herbal creams containing extract of reishi and tea tree oil for treating hirsutism. Methods: Herbal ingredients were authenticated. Cream base was initially formulated. Three formulations of herbal cream were prepared. Reishi ethanolic extract, tea tree oil, and combination of tea tree oil and reishi extract were added to the cream base and formulated cream were named as RHC, THC and RTC respectively. In vitro evaluations on herbal creams were done for the physicochemical characteristics. In vivo studies were carried out on female Swiss Albino mice for the activity against hair growth by topical application of cream to shaved skin. The histological and morphometric evaluation was carried out. Skin irritancy study was conducted. Results: The herbal creams showed desirable physicochemical properties like pH, viscosity and spreadability. Statistical analysis for the length of hair was performed by using one way ANOVA followed by DUNNET’S post hoc test where THC and RTC were found to be significant whereas RHC showed no significant reduction of hair growth compared to control. RTC showed a significant effect at p<0.05 and hair growth reduction was significant for THC at p<0.001 compared to the control group. RTC and THC showed mild to moderate reduction in the size of the hair follicles with a reduction of sebaceous gland size in the histological analysis. Conclusion: Topical application of herbal creams to mice showed that hair growth was fastest in group RHC and was slowest in group THC and intermediate with RTC. It can be concluded that these herbal actives can be used as an effective treatment against hirsutism. Within the study period, tea tree oil was found to be more effective than reishi extract and the combination product. Further formulation studies and in vivo studies need to be carried out on reishi to assess its effectiveness against hirsutism.


Author(s):  
Kamadyaapa Davie Rexon ◽  
Gondwe Mavuto Masopera ◽  
Shauli Mathulo ◽  
Sewani Rusike Constance ◽  
Nkeh Chungag Benedicta

  Objective: This study was conducted to scientifically evaluate the antidiabetic and antioxidant effects of ethanolic leaf extract of Erythrina abbysinica (EEA).Methods: Acute and sub-chronic effects of EEA at 100, 200, and 400 mg/kg/bwt and glibenclamide (GL) at 5 mg/kg/bwt. were evaluated in both normal and streptozotocin (STZ)-induced diabetic male Wistar rats (250–300 g). The acute studies were performed using oral glucose tolerance test (OGTT). In sub-chronic studies, animals were orally administered with EEA and GL daily for 6 w. Brine shrimp assay was used to determine the toxicity of EEA. 1, 1-diphenyl-2-picrylhydrazyl, ferric reducing capacity of plasma, and thiobarbituric acid reactive substances assays were used to determine antioxidant properties of EEA.Results: Following OGTT, EEA significantly (p<0.05) and dose-dependently (100, 200, and 400 mg/kg/bwt) decreased blood glucose levels in both normal and STZ-induced diabetic rats when compared with positive and negative control counterparts at all-time points, whereas GL significantly (p<0.05) decreased blood glucose only in normal rats but not in diabetic rats. Daily, oral administration of EEA for 6 w significantly (p<0.05) and dose-dependently (100, 200, and 400 mg/kg/bwt) decreased blood glucose levels in STZ-induced diabetic rats when compared with the diabetic control group. EEA revealed weak toxicity with a lethal concentration50 value of 997 μg/ml). Furthermore, EEA showed significant free radical scavenging, total antioxidant, and anti-lipid peroxidative capacities.Conclusion: The study has shed more light on the scientific basis for the use of E. abbysinica in management of diabetes in some communities of Eastern Cape of South Africa.


Molecules ◽  
2020 ◽  
Vol 25 (19) ◽  
pp. 4528 ◽  
Author(s):  
Abdelfattah EL Moussaoui ◽  
Mohammed Bourhia ◽  
Fatima Zahra Jawhari ◽  
Hamza Mechchate ◽  
Meryem Slighoua ◽  
...  

Withania frutescens (W. frutescens) is a medicinal plant widely used to treat several diseases. This work aims to study phytochemical composition as well as acute and subacute toxicity of W. frutescens hydroethanolic extract in mice. The phytochemical composition of W. frutescens extract was performed using gas chromatographic analysis. Acute toxicity was studied in vivo with oral administration of single doses 400 mg/kg, 1000 mg/kg, and 2000 mg/kg for 14 days. Subacute toxicity was studied with the administration of repeated doses of 400 mg/kg/day and 2000 mg/kg/day for 28 days. Phytochemical analysis of W. frutescens hydro-ethanolic extract confirmed the presence of interesting chemical compounds. Acute toxicity results showed no toxic symptoms in mice treated with an increasing dose up to a maximum of 2000 mg/kg. Alongside acute toxicity, subacute data showed no clinical symptoms nor biochemical or histological alteration in mice treated with an increasing dose up to a maximum of 2000 mg/kg compared to the control group (p < 0.05). This study shows no toxic effects in animals treated with W. frutescens extract, and, therefore, this plant can be considered safe in animals up to 2000 mg/kg under both acute and subacute toxicity conditions.


2020 ◽  
pp. 34-35
Author(s):  
M. Hemalatha ◽  
Saivenkatesh Korlam ◽  
N. Yasodamma

Planet earth is rich in plant-based medicine. Unfortunately, most of the medicinal plants are not in lime light for their optimal utilisation by the mankind mostly, because of unknown medicinally important phytochemicals present in them. Capparis divaricata Lam. is one of the medicinally important plants widely distributed in Arthagiri Hills of Chittoor Dist., Andhra Pradesh. The plant is ethnobotanically used for different ailments especially cancer. In the present study, Gas Chromatography and Mass Spectrometry (GC-MS) analysis of leaf ethanolic extract of Capparis divaricate is reported. Octasilaxone, Hexadecamethyl; Acetoxymethyl – Trimethyl: Octamethyl were identified as the major compounds.  Further, these compounds may act as anti-cancerous agents by efficient pharmacological studies.


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