Antimalarial Activity of Seed Extracts of Schinus molle Against Plasmodium berghei in Mice.

BACKGROUND: Malaria is a major public health problem in developing countries. In Ethiopian, the seeds of Schinus molle are used for the management of malaria. Therefore, the current study aimed to evaluate in vivo antimalarial activity of hydro-alcoholic crude extract and solvent fractions of Schinus molle seeds in Plasmodium berghei infected mice. METHODS: An 80 percent of methanolic crude extract and solvent fractions of Schinus molle seeds were tested for antimalarial activity at 100, 200 and 400 mg/kg doses. The parasitemia level, packed cell volume, body weight, survival of date and rectal temperature were used to evaluate the anti-malarial activity of the extracts. One-way ANOVA followed by post hoc Tukey's HSD multiple comparison test was employed and the result was expressed in mean ± SEM (standard error of the mean). RESULTS: The curative activity of the highest dose of crude extract and aqueous fraction of Schinus molle seeds was 69.86% and 73.82% (p < 0.001), respectively. In the prophylactic test, aqueous fraction had 72.39% (p < 0.001) suppression antimalarial activity. Among solvent fractions, only chloroform fraction was significantly attenuated packed cell volume reduction. The mice treated with crude extract and aqueous fraction had longer survival date than vehicle-treated mice (p < 0.001). CONCLUSION: The experiment finding showed that the crude extract and solvent fractions of Schinus molle seeds had significant curative and prophylaxis anti-plasmodial activity. This result revealed that the Schinus molle seeds extract has promising antimalarial activity against Plasmodium berghei. However, further confirmatory studies, isolation and characterization of the active constituents are recommended.

Evaluation of Analgesic and Anti-Inflammatory Activities of 80% Methanol Root Extract of Echinops kebericho M. (Asteraceae).

BACKGROUND: Pain and inflammation are the major devastating health problems commonly treated with traditional medicinal plants in Ethiopia. Echinops kebericho M. (Asteraceae) is the one which is frequently used to treat pain and inflammation by traditional healers in Ethiopian folk medicine. However, the plant has not been scientifically evaluated for its traditionally claimed use. The present study aimed at the investigation of analgesic and anti-inflammatory activities of 80% methanol root extract of Echinops kebericho M. in mice model. METHODS: Successive maceration was used as a method of extraction using solvents of increasing polarity: methanol and water. After extraction of the roots with 80% hydro methanol, the crude extract was evaluated for its peripheral and central analgesic activities using acetic acid-induced writhing test and hot plate method, respectively, while its anti-inflammatory activity was evaluated using carrageenan- and formalin-induced paw edema. The extract was evaluated at 100, 200 and 400 mg/kg doses. The positive control groups were treated with ASA 150 mg/kg for writhing test, morphine 10 mg/kg for hot plat method, indomethacin 25 mg/kg and diclofenac 10 mg/kg for paw edema tests and vehicle, distilled water (10 mL/kg) treated mice were assigned as negative controls. All treatment administrations were performed orally. RESULTS: E. kebericho extract at all test doses showed statistically significant antinociceptive activity in both chemicals-induced peripheral and thermal-induced central pain in a dose dependent manner (p < 0.01 and p < 0.001). The greater analgesic activity was observed by the maximum dose of the extract (400 mg/kg) in both acetic acids-induced writhing test (57.84%) and hot plate method (69.40%). The effect of the extract was also statistically significant (p < 0.01 and p < 0.001) in both carrageenan and formalin-induced paw edema in dose dependent manner. Greater edema inhibition was observed by the highest dose (400 mg/kg) in both observations with the respective percentage values of 70.00% and 79.87%, respectively. CONCLUSION: In general, the data obtained from the present study elucidated that the extract possessed a significant analgesic and anti-inflammatory activities and recommended for further studies.

Prevalence and Predictors of Self-Medication Practice Among Teachers' Education Training College Students in Amhara Region, Ethiopia: A Cross-Sectional Study.

Background: Self-medication practice is the use of medications without healthcare professional requests. It can lead to inappropriate medication usage, wastage of resources, increased chance of microbial resistance, and adverse drug reactions. Therefore, this study aimed at assessing the prevalence and associated factors of self-medication practice among teachers' education training college students in the Amhara region, Ethiopia. Methods: A multicentre cross-sectional study was conducted on 344 teachers' education training college students in the Amhara region, Ethiopia, from January 1 to February 28, 2020. Data on sociodemography, the practice of self-medication, and factors associated with self-medication practice were collected through a self-administered structured questionnaire. Systematic random sampling was used to select participants. Descriptive statistics and univariate and multivariate logistic regression analyses were done to determine various variables and factors associated with self-medication practice. Results: Out of the 344 respondents, 234 (68.0%) practiced self-medication. The most commonly cited indication for self-medication practice was headache (75, 32.05%), followed by abdominal discomfort (53, 22.6%). The respondents who were older than 26 years of age (AOR: 2.47, 95% CI: 1.18-3.94), were in the third year of study (AOR: 3.14, 95% CI: 1.94-5.79), lived in urban residence (AOR: 2.97, 95% CI: 1.06-3.64), had accessibility to a nearby pharmacy (AOR: 2.12, 95% CI: 1.43-4.46), and had peer/family pressure (AOR: 2.34, 95% Cl: 1.53-3.56) were significantly associated with self-medication practice. Conclusion: More than two-thirds of the study participants practiced self-medication. Being from an urban area, having access to a private pharmacy, and higher year of study positively affect self-medication practice.

Antiplasmodial activity of Indigofera spicata root extract against Plasmodium berghei infection in mice.

BACKGROUND: In addition to pharmacovigilance and pharmaco-economic concerns, resistance to anti-malarial medicines has been documented in all classes of anti-malarials and this is further worsened by resistance to common insecticides by malaria vector, which is a major threat to malaria control. As a means of facing the challenges of searching for new anti-malarial agents, the current study focused on evaluation of anti-malarial activity of root extract of Indigofera spicata. METHODS: Chloroquine-sensitive rodent malaria parasite, Plasmodium berghei (ANKA strain) was used to infect the Swiss Albino mice in 4-day suppressive and curative models. The crude hydromethanolic root extract of I. spicata at 200, 400 and 600 mg/kg doses was administered to a group of five mice. Important parameters, such as level of parasitaemia, packed cell volume (PCV), survival time, and body weight were determined and the significance of the differences between mean values of the five groups was analysed by one-way ANOVA followed by post hoc Tukey's Multiple Comparison test. RESULTS: In both the suppressive and curative models, 400 and 600 mg/kg doses of the extract suppressed the level of parasitaemia significantly (p < 0.001) compared to the vehicle-treated groups, 34.93 and 53.42%, respectively. However, only the mice which were treated with the 600 mg/kg dose of the extract had significant difference in their mean survival time. In other parameters, namely PCV and mean body weight, there was no statistically significant difference between the extract-treated groups when compared to the negative control. CONCLUSIONS: This study revealed that the root extract of I. spicata possesses anti-malarial activity and necessitates further scientific validation.

Drug therapy of epileptic seizures among adult epileptic outpatients of University of Gondar Referral and Teaching Hospital, Gondar, North West Ethiopia.

OBJECTIVE: The aim of this study was to assess the practice of pharmacotherapy of epilepsy and its treatment outcomes in adult epileptic outpatients at the University of Gondar Referral and Teaching Hospital, Gondar, North West Ethiopia. METHODS: An institution based, retrospective cross-sectional study was conducted from the medical charts of 336 adult epileptic patients at the outpatient epileptic clinic of Neurology Department of University of Gondar Teaching Hospital from May 2014 to April 2015. Reviewing follow-up information from the medical charts was used to evaluate antiepileptic drug (AED) prescribing patterns and treatment outcome. Data were collected by using data collection format and analyzed using SPSS software version 16. RESULTS: The most common type of seizure diagnosed was generalized tonic-clonic seizure (n=245, 72.91%). Monotherapy with an AED accounted for 80.35% of the cases, whereas dual therapy and polytherapy with three AED combinations accounted for 16.37% and 3.28%, respectively. The most frequently prescribed AED was phenobarbitone (62.47%) followed by carbamazepine (17.91%). From the total epileptic cases, 277 (82.4%) had well-controlled seizure status in the last three consecutive months. CONCLUSION: Most of the patients were maintained by monotherapy, and largely this was by the older antiepileptic drug, phenobarbitone. Considering the development of pharmacotherapy of epilepsy and other patient related factors, the standard treatment guideline for Ethiopia needs to be revised periodically.