Antimalarial efficacy test of the aqueous crude leaf extract of Coriandrum sativum Linn.: an in vivo multiple model experimental study in mice infected with Plasmodium berghei.

BACKGROUND: Malaria continues to wreak havoc on the well-being of the community. Resistant parasites are jeopardizing the treatment. This is a wake-up call for better medications. Folk plants are the key starting point for antimalarial drug discovery. After crushing and mixing the leaves of Coriandrum sativum with water, one cup of tea is drunk daily for a duration of three to five days as a remedy for malaria by local folks in Ethiopia. Additionally, in vitro experiments conducted on the plant leaf extract elsewhere have also demonstrated the plant's malaria parasite inhibitory effect. There has been no pharmacologic research to assert this endowment in animals, though. This experiment was aimed at evaluating the antimalarial efficacy of C. sativum in Plasmodium berghei infected mice. METHODS: The plant's leaf was extracted using maceration with distilled water. The extract was examined for potential acute toxicity. An evaluation of secondary phytoconstituents was done. Standard antimalarial screening models (prophylactic, chemosuppressive, curative tests) were utilized to assess the antiplasmodial effect. In each test, thirty mice were organized into groups of five. To the three categories, the test substance was given at doses of 100, 200 and 400 mg/kg/day before or after the commencement of P. berghei infection. Positive and negative control mice were provided Chloroquine and distilled water, respectively. Rectal temperature, parasitemia, body weight, survival time and packed cell volume were ultimately assessed. Analysis of the data was performed using Statistical Package for Social Sciences. RESULTS: No toxicity was manifested in mice. The extract demonstrated a significant inhibition of parasitemia (p < 0.05) in all the models. The inhibition of parasite load was highest with the upper dose in the suppressive test (82.74%) followed by the curative procedure (78.49%). Likewise, inhibition of hypothermia, weight loss hampering, improved survival and protection against hemolysis were elicited by the extract. CONCLUSIONS: The results of our experimental study revealed that the aqueous crude leaf extract of C. sativum exhibits significant antimalarial efficacy in multiple in vivo models involving mice infected with P. berghei. Given this promising therapeutic attribute, in depth investigation on the plant is recommended.

In vivo antimalarial activity of the 80% methanolic crude fruit extract of Lagenaria siceraria (Molina) Standl. against Plasmodium berghei infected mice.

Background: Malaria is a public health menace. Resistance to therapeutic armamentarium is impeding its control. Therefore, research targeting the discovery of novel antimalarial drug arsenals is a priority. The important point to begin the search for such drugs is the folkloric medicinal plants. Ripe fruit of Lagenaria siceraria is bored, rinsed with cold water, and one glass is used as a drink early in the morning for the treatment of malaria in Ethiopian folk medicine. In vivo antimalarial efficacy of the plant was not affirmed scientifically, though. Consequently, the present study was conducted to assess the in vivo antiplasmodial effect of Lagenaria siceraria in P. berghei infected mice. Methods: The fruits were extracted using 80% methanol in water. Acute toxicity test was conducted on the extract. Secondary phytochemicals were assessed. The four day suppressive test was employed in mice infected with P. berghei. Thirty mice were grouped in to five and inoculated with P. berghei. After 3 h, three of the groups received the extract at doses 100, 200 and 400 mg/kg. The remaining groups served as negative (2% Tween80) and positive control (chloroquine). Parasitemia, packed cell volume, weight, temperature and survival time were monitored. SPSS version 22 was used for data analysis. Results: No toxicity was seen in mice. The crude extract elicited significant suppression (p < 0.05) of the parasite compared to the negative control. The highest parasite suppression (77.37%) was measured at the upper dose. Furthermore, the crude extract significantly (p < 0.05) prevented body weight loss, anemia, reduction in temperature and prolonged the survival time compared to the negative control. Conclusion: This study asserted that the fruit of Lagenaria siceraria is enriched with in vivo antimalarial activity. Hence, further in depth antimalarial investigations on the plant is strongly recommended.

Pregnant mothers' knowledge, attitude, practice and its predictors towards nutrition in public hospitals of Southern Ethiopia: A multicenter cross-sectional study.

Objectives: Insufficient nutrition can predisposes women to infection, pregnancy losses, preeclampsia and anaemia as well birth of underweight baby whose survival is threatened. Therefore, this study was aimed to assess pregnant mothers' nutrition knowledge, attitude, practice and associated factors. Methods: A multicenter cross-sectional study was conducted among 378 participants who were selected using a systematic random sampling technique. Quantitative data were collected using a structured and interviewer-administered questionnaire, which consisted of questions on sociodemographic features, obstetrics characteristics and pregnant women's nutrition knowledge, attitude and practice. Data entry and analysis were done using Statistical Package for the Social Sciences statistical version 23. Binary logistic regression analysis was done to identify associated factors. All variables with p-value of < 0.23 in bivariate analysis were included in multivariate analysis, and finally, statistical significance was declared at p-value < 0.05 with 95% confidence interval. Result: From 378 women participated, a total of 231 (61.1%) respondents were in age range of 25-34 years. About 148 (39.1%) of women were not knowledgeable, 153 (40.5%) had an unfavourable attitude, and 47.7% had poor dietary practice. Knowledge (adjusted odds ratio = 4.5; 95% confidence interval: 2.88, 10.06, p = 0.03), attitude (adjusted odds ratio = 3.6; 95% confidence interval: 2.43, 6.66, p = 0.04) and practice (adjusted odds ratio = 3.6; 95% confidence interval: 2.43, 6.66, p = 0.036) were all significantly associated with maternal education. Regarding their occupation, merchant women were seven times (adjusted odds ratio = 7.02; 95% confidence interval: 2.88, 17.09, p = 0.01) more likely to have knowledge and government employees were six times (adjusted odds ratio = 6.05; 95% confidence interval: 3.58, 13.05, p = 0.04) more likely to be knowable than housewives. Moreover, multiparous women were 4.77 times (adjusted odds ratio = 4.77; 95% confidence interval: 1.15, 8.66, p = 0.002) more likely to be knowledgeable compared to primigravida women. Monthly income was also associated to attitude (adjusted odds ratio = 0.45, 95% confidence interval: 0.10, 1.66, p = 0.03). Women who had a favourable attitude were five times (adjusted odds ratio = 5.25; 95% confidence interval: 2.36, 9.62, p = 0.04) more likely to have good nutritional practices during pregnancy. Conclusion: Pregnant women's knowledge, attitude and practice towards nutrition in this area were low. The educational status of women was associated with knowledge; attitude and practice. Likewise, occupation and parity were associated with knowledge; and attitude was also found to be a determinant factor of nutritional practice. Therefore, community nutritional education and antenatal nutritional counselling need to be strengthened in the area.

In Vivo Antimalarial Activity of Crude Fruit Extract of Capsicum frutescens Var. Minima (Solanaceae) against Plasmodium berghei-Infected Mice.

BACKGROUND: The alarming spread of parasite resistance to current antimalarial agents is threatening malaria controlling efforts. This, consequently, urged the scientific community to discover novel antimalarial drugs. Successful and most potent antimalarial drugs were obtained from medicinal plants. Capsicum frutescens is claimed to possess an antiplasmodial activity in Ethiopian and Ugandan folkloric medicine. However, there is a lack of pharmacological evidence for its antiplasmodial activity. This study, hence, was aimed at evaluating the in vivo antiplasmodial activity of C. frutescens in a mouse model. METHODS: The dried fruits of the plant were extracted with 80% methanol using cold maceration. A 4-day suppressive test was employed to ascertain the claimed antiplasmodial effect of the plant. Following inoculation with P. berghei, mice in treatment groups were provided with three dose levels (100, 200, and 400 mg/kg) of the extract, while 2% Tween 80 and chloroquine served as the negative and positive controls, respectively. Weight, temperature, packed cell volume, parasitemia, and survival time were then monitored. RESULTS: The acute oral toxicity study revealed that the crude extract caused no mortality and revealed no overt sign of toxicity. In the 4-day suppressive test, all dose levels of the extract were found to exhibit a significant (p < 0.05) inhibition of parasitemia compared to those of the negative control. Maximum parasite suppression (93.28%) was exerted by the highest dose (400 mg/kg/day) of extract. Also, the extract significantly (p < 0.05) prolonged survival time and prevented body weight loss and reduction in temperature and anemia compared to the vehicle-treated group. CONCLUSION: This investigation found strong evidence that the fruit extract of C. frutescens is endowed with promising antiplasmodial activity. Hence, the plant could serve as a potential source of a newer antimalarial agent.

Antimalarial Activity of Aqueous and 80% Methanol Crude Seed Extracts and Solvent Fractions of Schinus molle Linnaeus (Anacardiaceae) in Plasmodium berghei-Infected Mice.

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 activity of the plant was investigated. 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.in vivo antimalarial activity of the plant was investigated. S. molle against in vitro antiplasmodial activity. In the present study, the.