scholarly journals In Vivo Antimalarial Activity and Toxicity Study of Extracts of Tagetes erecta L. and Synedrella nodiflora (L.) Gaertn. from the Asteraceae Family

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Prapaporn Chaniad ◽  
Tachpon Techarang ◽  
Arisara Phuwajaroanpong ◽  
Prasit Na-ek ◽  
Parnpen Viriyavejakul ◽  
...  

Objective. To investigate the antimalarial effects and toxicity of the extracts of the flowers of Tagetes erecta L. and the leaves of Synedrella nodiflora (L.) Gaertn. in a mouse model. Methods. To determine the in vivo antimalarial activity of the extracts, mice were intraperitoneally injected with the Plasmodium berghei ANKA strain and then administered T. erecta or S. nodiflora extract daily for 4 days. Parasitemia was observed by light microscopy. For the detection of acute toxicity, the mice received a single dose of T. erecta or S. nodiflora extract and were observed for 14 days. Biochemical parameters of liver and kidney function and the histopathology of liver and kidney tissues of the acute toxicity group were then examined. Results. T. erecta and S. nodiflora crude extracts at a dose of 600 mg/kg body weight significantly suppressed parasitemia in malaria-infected mice by 65.65% and 62.65%, respectively. Mice treated with 400 mg/kg T. erecta and S. nodiflora crude extracts showed 50.82% and 57.67% suppression, and mice treated with 200 mg/kg displayed 26.33% and 38.57% suppression, respectively. Additionally, no symptoms of acute toxicity were observed in the T. erecta- and S. nodiflora-treated groups. Moreover, no significant alterations in the biochemical parameters of liver and kidney function and no histological changes in the liver or kidney tissues were observed. Conclusions. This study revealed that both T. erecta and S. nodiflora extracts have antimalarial properties in vivo with less toxic effects. Further studies are needed to elucidate the mechanisms of the active compounds from both plants.

2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Getu Habte ◽  
Teshome Nedi ◽  
Solomon Assefa

Background. Malaria is among the leading causes of mortality and morbidity. Moreover, the emergence of resistance to antimalarial drugs is a major problem in controlling the disease. This makes the development of novel antimalarial drugs a necessity. Medicinal plants are important sources in discovering antimalarial drugs. Schinus molle is claimed for its antimalarial effect in Ethiopian folkloric medicine and endowed with in vitro antiplasmodial activity. In the present study, the in vivo antimalarial activity of the plant was investigated. Methods. Acute toxicity was carried out using a standard procedure. To screen the in vivo antimalarial potential of the S. molle against Plasmodium berghei (ANKA), a 4-day suppressive test was employed. The extracts and fractions were given to infected mice by oral gavage at 100, 200, and 400 mg/kg/day for four consecutive days. Parameters such as parasitemia were then evaluated. Results. Any sign of toxicity was not observed in the oral acute toxicity test. The crude extracts and solvent fractions exerted a significant (p<0.05) inhibition of parasite load compared to the negative control. The highest inhibition (66.91%) was exhibited by the 400 mg/kg/day dose of 80% methanolic crude extract. Among the fractions, chloroform fraction demonstrated maximal chemosuppressive effect (55.60%). Moreover, crude extracts and solvent fractions prevented body weight loss, reduction in temperature, and anemia compared to the negative control. Except the aqueous fraction, the tested plant extracts were able to significantly prolong the survival time of infected mice. Conclusion. The findings of the present study confirmed the safety and a promising in vivo antimalarial activity of S. molle, thus supporting the traditional claim and in vitro efficacy. In-depth investigations on the plant, however, are highly recommended.


Author(s):  
Kodi Philip ◽  
Peter Kiplagat Cheplogoi ◽  
Mwangi Muthoni Elizabeth ◽  
M. Akala Hoseah ◽  
Moses K. Langat

Aims: The medicinal plant Oncoba spinosa is used by the local communities in Butebo County in Eastern Uganda for treatment of malaria and other diseases. In vitro antiplasmodial activities of the crude extracts and isolated compounds were screened against chloroquine sensitive 3D7 and resistant Dd2 strains. In vivo acute toxicity of the extracts and structure elucidation were also determined in the study. Experimental: Crude extracts of: n-hexane, dichloromethane, ethyl acetate and methanol were prepared. Isolation and purification of these extracts were done using chromatographic techniques which consisted of column and thin layer chromatography. The structures were elucidated on the basis of spectroscopic evidence. In vitro antiplasmodial activity was performed on chloroquine sensitive 3D7 and resistant Dd2 strains of Plasmodium falciparum using SYBR Green 1 assay technique. Lorke’s method of acute toxicity was used to determine the in vivo acute toxicity of the crude extracts in mice. Results: The root ethyl acetate crude extract had highest antiplasmodial activity of IC50:4.69 ± 0.01 µg/mL and 3.52 ± 0.02 µg/mL against 3D7 and Dd2 strains respectively while the remaining three were inactive against both strains of Plasmodium. Isolation resulted in the identification of three known compounds which included: β-sitosterol, benzoic acid and chaulmoogric acid. Among the tested compounds β-sitosterol showed the highest activity of IC50 3D7: 5.51 µM. Dichloromethane and hexane extracts were non-toxic with LD50 > 5000 mg/kg while the EtOAc and MeOH extracts were slightly toxic with LD50 of 547.72 mg/kg. Statistically significance existed between the antiplasmodial activity of the crude extracts and compounds when compared with the controls at (p < 0.05). Extracts and compounds exerted a significant (P < 0.05) decrease in antiplasmodial activity compared to the positive controls. Conclusion: The findings confirm the ethnobotanical use of O. spinosa by the local communities in Butebo County for the treatment of malaria. The results also suggest that the crude extract of this plant is safe and possesses antimalarial activity which can be used as a basis for in vivo and clinical studies to be done. Therefore the plant can offer a potential drug lead for developing a safe, effective and affordable antimalarial.


Nutrients ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 2002 ◽  
Author(s):  
Cristina Moliner ◽  
Lillian Barros ◽  
Maria Dias ◽  
Víctor López ◽  
Elisa Langa ◽  
...  

Tagetes erecta L. has long been consumed for culinary and medicinal purposes in different countries. The aim of this study was to explore the potential benefits from two cultivars of T. erecta related to its polyphenolic profile as well as antioxidant and anti-aging properties. The phenolic composition was analyzed by LC-DAD-ESI/MSn. Folin-Ciocalteu, DPPH·, and FRAP assays were performed in order to evaluate reducing antiradical properties. The neuroprotective potential was evaluated using the enzymes acetylcholinesterase and monoamine oxidase. Caenorhabditis elegans was used as an in vivo model to assess extract toxicity, antioxidant activity, delayed aging, and reduced β-amyloid toxicity. Both extracts showed similar phenolic profiles and bioactivities. The main polyphenols found were laricitin and its glycosides. No acute toxicity was detected for extracts in the C. elegans model. T. erecta flower extracts showed promising antioxidant and neuroprotective properties in the different tested models. Hence, these results may add some information supporting the possibilities of using these plants as functional foods and/or as nutraceutical ingredients.


2021 ◽  
pp. 1460-1466
Author(s):  
Hind Mahmood Jumaah ◽  
Jabbar H. Yenzeel ◽  
Mohammad G. Mehdi

 The effect of myeloid leukemia,  especially cute myeloid leukemia (AML), has been widely noticed on the parameters of liver and kidney functions and the levels of certain hormones. This study aimed to evaluate a number of biochemical parameters of liver and kidney functions and hormones in Iraqi subjects with newly diagnosed acute myeloid leukemia. Eighty newly diagnosed AML adult patients (40 males and 40 females) and forty healthy individuals (20 males and 20 females) with an age range of 16-75 years were involved in this study during their attendance at the Hematology Department of Baghdad Teaching Hospital/ Medical city in Baghdad province from March 2019 to February 2020. Blood samples were collected from all subjects for the determination of serum levels of the parameters of liver function parameters., kidney function , lactate dehydrogenase (LDH), and Erythropoietin (EPO). The results showed that the serum levels of liver function parameters (alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP) had highly significant increases (p< 0.01)  in AML patients (85.87±2.49 , 53.93±1.76, 150.87±7.04 U/L, respectively) as compared  to the control (30.58 ±2.04, 22.89 ±0.97, 75.51 ±2.12 U/L, respectively ). Also, the level of kidney function parameters (blood urea, creatinine and uric acid) showed highly significant increases (p< 0.01) in AML patients (58.82 ±1.49, 1.831 ±0.05, 8.34 ±0.15 mg/dl, respectively) as compared to the control (31.10 ±1.03, 0.850 ±0.02, 4.81 ±0.14 mg/dl, respectively). In addition, the level of LDH showed a highly significant increase (p< 0.01) in the patients with AML (657.72 ±80.76 U/L) as compared to the control (166.05 ±6.15 U/L). Moreover, the level of EPO showed a highly significant increase (p<0.01) in the patients with AML (11763.80 ±329.46 pg/ml ) as compared  to the control (316.94 ±34.42 pg/ml).


2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Dawit Zewdu Wondafrash ◽  
Dayananda Bhoumik ◽  
Birhanetensay Masresha Altaye ◽  
Helen Bitew Tareke ◽  
Brhane Teklebrhan Assefa

Background. Malaria remains a major worldwide public health problem leading to death of millions of people. Spread and emergence of antimalarial drug resistance are the major challenge in malaria control. Medicinal plants are the key source of new effective antimalarial agents. Cordia africana (Lam.) is widely used for traditional management of malaria by local people in different parts of Ethiopia. The present study aimed to evaluate in vivo antimalarial effects of leaf extracts and solvent fractions of Cordia africana on Plasmodium berghei-infected mice. Methods. The leaf extracts were prepared and tested for oral acute toxicity according to the OECD guideline. In vivo antimalarial effects of various doses of C. africana extracts and solvent fractions were determined using the four-day suppression test (both crude and fractions), as well as curative and chemoprophylactic tests (crude extracts). Results. The acute toxicity test of the plant extract revealed that the medium lethal dose is higher than 2000 mg/kg. The crude extract of the plant exhibited significant parasitemia suppression in the four-day suppression (51.19%), curative (57.14%), and prophylactic (46.48%) tests at 600 mg/kg. The n-butanol fraction exhibited the highest chemosuppression (55.62%) at 400 mg/kg, followed by the chloroform fraction (45.04%) at the same dose. Conclusion. Our findings indicated that both the crude leaf extracts and fractions of C. africana possess antimalarial effects, supporting the traditional claim of the plant.


Author(s):  
Popi Patilaya ◽  
Dadang Irfan Husori ◽  
Imam Bagus Sumantri ◽  
Simon Sihombing

 Objective: Picria fel-terrae belongs to family Linderniaceae is also known as Pugun tano by Indonesian people. The ethanolic extract of plant leaves has several potential pharmacological activities including antidiabetic, anthelmintic, and antioxidant. However, the toxicity of the plant extract is rarely explored. This work was to investigate toxicity of the leaf ethanolic extract of P. fel-terrae on Artemia salina and male mice.Methods: Acute toxicity of the plant extract was studied by in vitro and in vivo methods. In vitro study was carried out by exposing nauplii to the plant extract at concentrations of 10, 100, 200, 500, and 1000 μg/ml for 48 h. In vivo study was performed on male mice that divided into four groups. Groups I, II, III, and IV were treated with sodium carboxymethyl cellulose 0.5%, the ethanolic extract of plant leaves at doses of 1000, 2000, and 5000 mg/kg bw, respectively. The animal toxic symptoms were observed every day for 14 days. On day 15, the blood of mice was collected to measure alanine aminotransferase, aspartate aminotransferase, and creatinine levels. The effects of plant extract on vital animal organs such as heart, liver, and kidney were also studied. Statistical analysis of data was performed using analysis of variance and followed by Tukey post hoc.Results: The results showed that the leaf ethanolic extract of P. fel-terrae to have weakly toxicity on A. salina with the LC50 of 768.07 μg/ml. At in vivo studies, the toxic symptoms of mice were not identified during experiment with all doses of the plant extract for 14 days. In addition, aspartate aminotransferase and creatinine levels were no significantly different between control and all treatment groups (p>0.05). However, alanine aminotransferase level changed when mice were exposed by the plant extract at the doses of 2.000 and 5.000 mg/kg bw. Although the mice were not dead during experiment, the animal organs such as heart, liver, and kidney were histologically changed.Conclusion: This study suggests that the ethanolic extract of P. fel-terrae leaves has weakly toxicity on A. salina and causes histological changes on male mice organs at the high doses.


2021 ◽  
Vol 12 (6) ◽  
pp. 35-39
Author(s):  
Adeeba Anjum ◽  
Ashik Mosaddik ◽  
Mir Imam Ibne Wahed ◽  
Md. Ekramul Haque

The current study was carried out to investigate the sub-acute toxicity of 3-O--D-glucopyranosyl-(24)-ethylcholesta-5,22,25-triene, a steroidal glycoside isolated from the flowers of Alangium salviifolium Wang on Long Evan’s rat. After intra-peritoneal administration of the compound at a dose of 300 μg/rat/day for 14 consecutive days, no mortality or significant changes in body weight or behavior were observed. The blood samples of the rats were examined for hematological and biochemical parameters which were statistically insignificant when compared to that of the control group. All the vital organs showed normal histopathological architecture (heart, lungs, liver and kidney) in comparison to the control group. This preliminary investigation demonstrate that the compound is safe at dose of 300 μg/rat/day for 14 consecutive days. But acute, sub-chronic and chronic toxicity evaluations as well as clinical trials need to be done.


2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Gebru Hagos Atsbha ◽  
Rajkapoor Balasubramanian ◽  
Abadi Kahsu Gebre

Background. Malaria remains a major public health problem globally. Poor access to antimalarial drugs compounded with rapidly evolving drug resistance encourages researchers to continuously look for new drugs. Of importance, traditionally used medicines of plant origin are the highest priority as the ethnobotanical claim can be used as an important clue for its safety and efficacy profiles. Silene macrosolen A. Rich (Caryophyllaceae) has been traditionally used for malaria treatment in Ethiopia. Therefore, this study was aimed to evaluate the in vivo antimalarial activity of the plant against Plasmodium-berghei-infected (ANKA strain) Swiss albino mice. Methods. The dried powdered root of Silene macrosolen was extracted using 80% methanol. The crude extract was fractionated using chloroform, ethyl acetate, and distilled water that have different affinities to plant phytoconstituents. The in vivo antimalarial activities of the crude extract were evaluated using 4-day suppressive, prophylactic, and curative tests. The antimalarial activity of the solvent fractions was evaluated in a 4-day suppressive test. The oral acute toxicity of the crude extract was also determined according to the OECD guidelines. Results. The percentage of parasite suppression on the crude extract was 31.02%, 35.82%, and 39.23% in prophylactic, curative, and 4-day suppressive tests, respectively, at the tested dose level of 400 mg/kg. The percentages of chemosuppression of the solvent fractions (400 mg/kg) were 43.07%, 42.61%, and 38.38% in aqueous, ethyl acetate, and chloroform fractions, respectively. Both the crude extract and solvent fractions also significantly prolonged survival time except in the prophylactic test. In addition, prevention of weight loss and reduction in temperature and packed cell volume (PCV) were observed in crude extract as well as solvent fractions. The acute toxicity test of the plant extract also exhibited no sign of toxicity. Conclusion. The result indicated that Silene macrosolen has a significant antimalarial activity, justifying the traditional use of the plant material for treatment of malaria.


Author(s):  
Azeemat Titilola Abdulazeez ◽  
Akolade Jubril Olayinka ◽  
Fatimah Aluko Abubakar ◽  
Balogun Basheer Ajibola

Author(s):  
Ayeni E. Ayodeji ◽  
Ahmed Abubakar ◽  
Nuhu Aliyu ◽  
Lucia O. Uhomoibhi ◽  
Ibrahim Garba

Background: Daucus carota L. belongs to the family Apiaceae and it is commonly known as carrot. The aerial part is used in some Northern parts of Nigeria as a livestock feed without scientific evidence of its safety to animal and man.Aim: The study assessed the safety margins of the D. carota aerial parts.Setting: The aerial part of D. carota were sourced from cultivated farmland at the outskirts of Samaru, Sabon Gari Local Government Area of Kaduna State and authenticated at Herbarium Unit of the Department of Botany, Ahmadu Bello University Zaria, Nigeria. The aerial parts were air-dried under shade, pulverised and stored properly for analysis.Methods: According to the Organization for Economic Cooperation and Development (OECD) method, the acute and sub-acute toxicity studies were carried on the crude extracts of the aerial parts to evaluate the safety of the healthy Wistar rats.Results: The findings from the oral acute toxicity study showed that there was no sign of toxicity and mortality at 5000 mg/kg in the n-hexane, ethyl acetate and methanol extracts. The sub-acute toxicity graded doses of 500 mg/kg, 1000 mg/kg and 1500 mg/kg of these extracts revealed a significant difference (p ≤ 0.05) on body weight, haematological parameters, liver and kidney function parameters. The histopathological effects of the extracts revealed different morphological alterations in the liver and kidney when compared with the control group.Conclusion: The study concluded that the aerial parts of D. carota might not be safe for livestock and its consumption could be capable of causing liver, kidney, tissue injury and other related diseases to animal and man.


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