Amodiaquine–Ciprofloxacin: a potential combination therapy against drug resistant malaria

Parasitology ◽  
2015 ◽  
Vol 142 (6) ◽  
pp. 849-854 ◽  
Author(s):  
Y. F. FALAJIKI ◽  
O. AKINOLA ◽  
O. O. ABIODUN ◽  
C. T. HAPPI ◽  
A. SOWUNMI ◽  
...  
Keyword(s):  
Body Weight ◽  
Plasmodium Berghei ◽  
Complete Resolution ◽  
Therapeutic Option ◽  
Control Group ◽  
Drug Resistant ◽  
Untreated Control Group ◽  
Peak Parasitaemia

SUMMARYEmergence of malaria parasites resistant to artemisinin necessitates the need for development of new antimalarial therapies. Ciprofloxacin (CFX) a second generation quinolone antibiotic possesses some antimalarial activities. We investigated the in vivo antimalarial activities of CFX in combination with amodiaquine in mice infected with chloroquine-resistant Plasmodium berghei ANKA. Animals were treated orally with 80 or 160 mg kg−1 body weight of CFX alone given twice daily or in combination with amodiaquine (AQ) 10 mg kg−1 body weight. Parasitological activity and survival of the animals were assessed over 21 days. Peak parasitaemia in the untreated control group was 72·51%. Treatment with AQ alone resulted in clearance of parasitaemia by day 4 while treatment with CFX 80 and 160 mg kg−1 alone suppressed parasitaemia by 13·94–54·64% and 35·6–92·7%, respectively. However, the combination of CFX with AQ significantly enhanced response of infection in the animals to treatment (P < 0·05) resulting in complete resolution of parasitaemia throughout follow up period with CFX 160 mg kg−1, delayed recrudescence time with CFX 80 mg kg−1 and significant increase in survival rate of the animals. The results demonstrate beneficial interaction between AQ and CFX which may provide a clinically relevant antimalarial/antibiotic therapeutic option in the management of malaria.

In vivo curative antimalarial effects of the aqueous extract of Entandrophragma angolense bark on Plasmodium berghei infection in mice

2019 ◽  
Author(s):  
Raceline Gounoue Kamkumo ◽  
Abel Narcisse Messi Betene ◽  
Patrick Valère Tsouh Fokou ◽  
Jean Hubert Donfack ◽  
Marius Jaures Tsakem Nangap ◽  
...  
Keyword(s):  
Body Weight ◽  
Aqueous Extract ◽  
Malaria Control ◽  
Plasmodium Berghei ◽  
Venous Blood ◽  
Parasite Development ◽  
Distilled Water ◽  
Biochemical Tests

Abstract Background Research for new antimalarial drugs remains a permanent quest for the control of malaria disease due to the emerging parasite resistances. The present study investigates the effects of the aqueous extract of Entandrophragma angolense (E. angolense) bark on Plasmodium. berghei-induced malaria in mice. Methods Eight weeks old female mice, were intraperitoneally infested with 200 μL of mouse blood, containing 1x106 P. berghei-infected-erythrocytes. Parasitaemia was determined using a 10% giemsa stained blood smear read under optical microscope (x100). The infected animals were randomized into 5 groups of 10 animals each and daily treated for 5 days with the plant extract at 125, 250 and 500 mg / kg. The malaria control received distilled water (10 mL / kg) while the chloroquine control was treated with 10 mg / kg of chloroquine. A group of healthy mice was used as the normal control and received distilled water. Body weight, parasitaemia and survival time were monitored daily during treatment and follow up periods. Five animals from each group were sacrificed under anaesthesia at the end of treatment (d8) and after the follow up period (d28). Venous blood was used for haematological and biochemical tests. Organs (liver, kidneys and spleen) were also collected for biochemical and histological analyses. Results Administration of the aqueous extract of E. angolense bark to infected mice significantly inhibited parasite development (p < 0.001) with ED50 estimated at 25.32 mg / kg. The extract prevented animal from death, body weight loss, anaemia, leucocytosis, high transaminases (ALT and AST), high bilirubin, creatinine and MDA levels, oxidative stress and anatomical alteration in organs as compared to the malaria control. Conclusions The E. angolense bark possesses antimalarial properties, supporting its use in traditional medicine to treat malaria.

scholarly journals In Vivo Antiplasmodial Activity of Two Sahelian Plant Extracts on Plasmodium berghei ANKA Infected NMRI Mice

2018 ◽  
Vol 2018 ◽  
pp. 1-4 ◽  
Author(s):  
Léa Nadège Bonkian ◽  
R. Serge Yerbanga ◽  
Benjamin Koama ◽  
Aboubakar Soma ◽  
Mamoudou Cisse ◽  
...  
Keyword(s):  
Body Weight ◽  
Plasmodium Berghei ◽  
Day Treatment ◽  
Primary Treatment ◽  
Antiplasmodial Activity ◽  
World Health ◽  
Control Group ◽  
Traditional Use ◽  
Guiera Senegalensis

Up to now, the control of malaria remains a challenge. The World Health Organization (WHO) recommends the use of artemisinin-based combination therapies (ACTs) for uncomplicated malaria treatment. Despite this guideline, many people in Burkina Faso use herbal medicine as primary treatment against malaria. The aim of this study was to assess the in vivo activity of Guiera senegalensis J. F. Gmel and Bauhinia rufescens Lam. leaves extracts against Plasmodium berghei ANKA. A four-day treatment of leaves decoction of each plant was administrated orally to 7 groups of six NMRI (Naval Medical Research Institute) mice infected with Plasmodium berghei ANKA strain. The control group received distilled water as treatment while the treated groups each received daily 100, 250, and 500 mg extract/kg body weight. Thin blood smears were performed on day five and the percentage of reduction of parasitaemia was determined compared to the control. The percentages of reduction of the parasitaemia at the doses of 100, 250, and 500 mg extract/kg body weight were, respectively, 57.5%, 35.9%, and 44.9% for Guiera senegalensis and 50.6%, 22.2%, and 25.7% for Bauhinia rufescens. Our findings on antiplasmodial activity of these two plants justify the traditional use by local populations against malaria. Thus, the isolation of the active compounds from these two plants is suggested for possible antimalarial candidate drugs.

Overtraining of aerobic physical exercise reduce rats (Rattus norvegicus) memory

2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Ni Made Ridla Parwata
Keyword(s):  
Body Weight ◽  
Physical Exercise ◽  
Rattus Norvegicus ◽  
Research Method ◽  
Male Rat ◽  
Control Group ◽  
Adult Male Rat ◽  
The Subject ◽  
Heavy Training

Overtraining syndrome is a decrease in physical capacity, emotions and immunity due to training that is too often without adequate periods of rest. Overtraining is often experienced by athletes who daily undergo heavy training with short break periods. This research aims to look at the effect of overtraining aerobic physical exercise on memory in mice. The research method was experimental in vivo with the subject of adult male rat (Rattus Norvegicus) Winstar strain aged 8-10 weeks, body weight 200-250 gr. Divided into three groups, namely the control group, aerobic group and overtraining group. The results of memory tests with water E Maze showed an increase in the duration of travel time and the number of animal errors made by the overtraining group (p = 0.003). This study concludes that overtraining aerobic physical exercise can reduce memory in rat hippocampus.

scholarly journals SAT0547 RADIOGRAPHIC IMAGING IN ASSESSMENT OF FLUOROSCOPIC GUIDED INJECTION OF RHEUMATOID ATLANTOAXIAL JOINT INFLAMMATION

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1230.1-1231
Author(s):  
D. Fouad ◽  
S. Rashad ◽  
M. Ghaly ◽  
M. Hassanien
Keyword(s):  
Rheumatoid Arthritis ◽  
Neck Pain ◽  
Sleep Quality ◽  
Sleep Disturbance ◽  
Steroid Injection ◽  
Therapeutic Option ◽  
Control Group ◽  
Atlantoaxial Joint ◽  
Post Intervention

Background:Rheumatoid spondylitis is a feature of long-lasting Rheumatoid arthritis (RA) that is presented by neck pain, headache and sleep disturbance. Atlantoaxial joint (AAJ) is the commonest cervical spine joint that affected in patients with RA. When it is involved, it can be associated with dangerous complications. Magnetic Resonance Imaging (MRI) can be used for assessing the disease activity, the amount of cartilage destruction, associated cervical myelopathy and differentiating synovial fluid from inflammatory pannus (Taniguchi D, et al., 2008).Objectives:This study aimed to evaluate the efficacy of intra-articular steroid injection of inflamed AAJ in RA patients, regarding neck pain, headache and sleep quality using pre and post-interventions MRI.Methods:A prospective case control study. Patients with inflamed AAJ were recruited. Group 1 (AAJ group, n = 30), received intraarticular AAJ steroid injection, guided by fluoroscopy and Group 2 (control group, n = 30), received systemic steroids. Both groups were assessed with: Visual Analogue scale (VAS) for nocturnal neck pain and headache. Pittsburgh sleep quality index (PSQI) was used for sleep disturbance. Pre and post contrasts enhanced MRI interventions were done for both groups during the period of follow up (three months).Results:Nocturnal neck pain, headache and sleep disturbance have significantly decreased, during follow up visits (3 months), in AAJ group in comparison to the control group. The Pre-intervention nocturnal pain score was 60.3 ±17.1 in AAJ group & 58.5 ±17.9 in control group. Pain has significantly decreased after 2weeks in AAJ group with continuous improvement till 3 months’ post-intervention 6.9 ±4.65 & 51.26 ±10.54 respectively. The pre-intervention headache was 22.68 ±16.74 in AAJ group & 45.17 ±15.83 in control group decreased to 7.54 ±5.23 & 48.52 ±11.98 respectively post intervention. The percentage of patients who had sleep disturbance at baseline was 66.7% & 73.3% in AAJ and control groups respectively which has significantly decreased to 6.7% & 43.3% after 3 months. Regarding MRI, AAJ group hada statistical significant decreasein the percentage of patients with MRI synovial enhancement, inflammatorypannus,fibrosis and bone marrow edema in comparison to control group 3 months post intervention. All post-procedural side effects resolved within thmonth without further medical intervention, and no long-term sequelae were identifiedConclusion:Fluoroscopic guided intra-articular steroid injection of inflamed atlantoaxial joints is considered a beneficial therapeutic option in rheumatoid arthritis patients regarding clinical and radiological assessments.References:[1]Taniguchi D, Tokunaga D, Hase H, et al. Evaluation of lateral instability of AAJ in RA using dynamic open-mouth view radiographs. Clin Rheumatol.2008 Jul. 27(7):851-7.Disclosure of Interests:None declared

scholarly journals Anti-Obesity and Anti-Adipogenic Effects of Chitosan Oligosaccharide (GO2KA1) in SD Rats and in 3T3-L1 Preadipocytes Models

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 331
Author(s):  
Jung-Yun Lee ◽  
Tae Yang Kim ◽  
Hanna Kang ◽  
Jungbae Oh ◽  
Joo Woong Park ◽  
...  
Keyword(s):  
Gene Expression ◽  
Body Weight ◽  
Density Lipoprotein ◽  
Treated Group ◽  
Control Group ◽  
Chitosan Oligosaccharide ◽  
Sd Rats ◽  
Adipogenic Gene

Excess body weight is a major risk factor for type 2 diabetes (T2D) and associated metabolic complications, and weight loss has been shown to improve glycemic control and decrease morbidity and mortality in T2D patients. Weight-loss strategies using dietary interventions produce a significant decrease in diabetes-related metabolic disturbance. We have previously reported that the supplementation of low molecular chitosan oligosaccharide (GO2KA1) significantly inhibited blood glucose levels in both animals and humans. However, the effect of GO2KA1 on obesity still remains unclear. The aim of the study was to evaluate the anti-obesity effect of GO2KA1 on lipid accumulation and adipogenic gene expression using 3T3-L1 adipocytes in vitro and plasma lipid profiles using a Sprague-Dawley (SD) rat model. Murine 3T3-L1 preadipocytes were stimulated to differentiate under the adipogenic stimulation in the presence and absence of varying concentrations of GO2KA1. Adipocyte differentiation was confirmed by Oil Red O staining of lipids and the expression of adipogenic gene expression. Compared to control group, the cells treated with GO2KA1 significantly decreased in intracellular lipid accumulation with concomitant decreases in the expression of key transcription factors, peroxisome proliferator-activated receptor gamma (PPARγ) and CCAAT/enhancer-binding protein alpha (CEBP/α). Consistently, the mRNA expression of downstream adipogenic target genes such as fatty acid binding protein 4 (FABP4), fatty acid synthase (FAS), were significantly lower in the GO2KA1-treated group than in the control group. In vivo, male SD rats were fed a high fat diet (HFD) for 6 weeks to induced obesity, followed by oral administration of GO2KA1 at 0.1 g/kg/body weight or vehicle control in HFD. We assessed body weight, food intake, plasma lipids, levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) for liver function, and serum level of adiponectin, a marker for obesity-mediated metabolic syndrome. Compared to control group GO2KA1 significantly suppressed body weight gain (185.8 ± 8.8 g vs. 211.6 ± 20.1 g, p < 0.05) with no significant difference in food intake. The serum total cholesterol, triglyceride, and low-density lipoprotein (LDL) levels were significantly lower in the GO2KA1-treated group than in the control group, whereas the high-density lipoprotein (HDL) level was higher in the GO2KA1 group. The GO2KA1-treated group also showed a significant reduction in ALT and AST levels compared to the control. Moreover, serum adiponectin levels were significantly 1.5-folder higher than the control group. These in vivo and in vitro findings suggest that dietary supplementation of GO2KA1 may prevent diet-induced weight gain and the anti-obesity effect is mediated in part by inhibiting adipogenesis and increasing adiponectin level.

scholarly journals Clinical and in Vivo Response Following Surgery or Surgery Plus Adjuvant Chemotherapy or Immunotherapy for Colorectal Carcinoma in a Rat Model

1983 ◽  
Vol 76 (10) ◽  
pp. 833-840 ◽  
Author(s):  
A K House ◽  
M A L Maley
Keyword(s):  
Body Weight ◽  
Adjuvant Chemotherapy ◽  
Surgical Excision ◽  
The Body ◽  
Recurrent Tumour ◽  
Mesenteric Node ◽  
And Control ◽  
Tumour Weight

Two cohorts of rats, 240 with colon cancer and 150 controls, were assessed clinically and immunologically for their response to tumour and its management which was either by surgical excision alone or by surgical excision combined with either adjuvant chemotherapy or immunotherapy. The histology and invasion characteristics were observed for similarity with those of human lesions. Metastases were found in liver, lymph nodes, the peritoneum or lungs in 27% of animals during follow up. Significantly fewer adjuvant-treated rats had metastases than those receiving surgery alone ( P < 0.05), and less total tumour weight was found in the adjuvant-treated rats at four ( P < 0.03) and six ( P < 0.001) weeks postoperatively. Animals in the adjuvant immunotherapy group survived longer than in either other group ( P < 0.001). The crude parameters of host response to tumour, body, spleen and mesenteric lymph node weight were recorded and the latter two indexed to body weight. The body weight of tumour and control rats increased significantly with time ( P < 0.04). The spleen and mesenteric node indices were significantly ( P < 0.04) greater in tumour than control rats and were varied by recurrent tumour growth and by the adjuvant treatment administered postoperatively.

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

2015 ◽  
Vol 10 (3) ◽  
pp. 562 ◽  
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

<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>

scholarly journals Sequestration of erythrocytes infected with Plasmodium berghei ANKA in BALB/c mice treated with goat bile

2020 ◽  
Vol 4 (2) ◽  
pp. 179
Author(s):  
Kartika Arum Wardani ◽  
Kholida Nur Aini ◽  
Heny Arwati ◽  
Willy Sandhika
Keyword(s):  
Plasmodium Berghei ◽  
Antimalarial Activity ◽  
Negative Control ◽  
Control Group ◽  
Dependent Manner ◽  
Plasmodium Berghei Anka ◽  
Concentration Dependent Manner ◽  
Control Group Design ◽  
Bile Concentration

Abstract Sequestration of Plasmodium berghei ANKA-infected erythrocytes occurs in BALB/c mice as characteristic of  Plasmodium falciparum infection in humans. Animals’ bile has been widely used for centuries in Traditional Chinese Medicine. Goat bile has been used in healing infectious and non-infectious diseases; however, no report on the use of goat bile against malaria infection and sequestration. The purpose of this study was to analyze the correlation between parasitemia and sequestration in the liver of P.berghei ANKA-infected BALB/c mice treated with goat bile. This research was an in vivo experimental study using the post-test control group design. The male BALB/c mice aged ± 6 weeks, body weight 20-25 g were used. The mice were divided into five groups where Group 1-3 were mice treated with goat bile 25%, 50%, and 100%, respectively. Group 4-5 were negative (sterile water) and positive controls (DHP). Parasitemia was observed daily from each mouse and the number of sequestered infected erythrocytes on the endothelium of sinusoids. The data were analyzed using t independent test. Antimalarial activity of goat bile was shown by the lower parasitemia in goat bile-treated mice compared with the negative control. The average number of sequestration was goat bile concentration-dependent manner. The higher the concentration, the lower the number of sequestration. Sequestration was correlated with parasitemia (p=0,0001). Sequestration of P.berghei ANKA-infected erythrocytes correlated with parasitemia, and was goat bile concentration-dependent manner. Keywords: Malaria, parasitemia, sequestration, goat bileCorrespondence: [email protected]

scholarly journals Toxic Effects of Vitex Negundo L. And Polygonum Hydropiper L. Plant Extract Treated Fishes on Rats

2021 ◽  
Vol 49 (1) ◽  
pp. 125-135
Author(s):  
Molly Harun ◽  
Gulroo Begum Sufi ◽  
Gulshan Ara Latifa
Keyword(s):  
Body Weight ◽  
Radiation Dose ◽  
Plant Extracts ◽  
Control Group ◽  
Vitex Negundo ◽  
Histopathological Changes ◽  
Untreated Control Group ◽  
Polygonum Hydropiper ◽  
Treated Fish ◽  
Dried Fish

An observation was made to taste the toxic effect of Vitex negundo L. and Polygonum hydropiper L. (leaf and bark) plants extracts treated fish fed group on rats, Bandicota indica. Six group of rats were fed on two different kinds of plants extracts, one is radiation dose and another untreated control group. These were, the untreated control group rats were feed on normal food such as dried fish and wheat whereas treated rats were given plant extracts and radiation dose treated by dried fish. The experimental rats were fed of 4 ml dose of plant extracts in 70% ethyl alcohol (ratio 1:10) and 4 kGy radiation treated dry fish. The toxic properties of these plant extracts were carried out the vital organs of liver, kidney, stomach, spleens, lungs and muscles on male rats .The lower mammalian species rats were used for preliminary survey their body weight gained and histopathological changes were observed. The experiment was carried out from August 2004 to December 2004. Initially the concentration of rats body weights were found as, control group (C) 43 g/m, Vitex negundo leaf treated fish fed group of rat (VL) 44.8 g/m, Vitex negundo bark treated fish fed group of rat (VB) 44.4 g/m, Polygonum hydropiper leaf treated fish fed group of rat (PL) 46.2 g/m, Polygonum hydropiper bark treated fish fed group of rat (PB) 47.8 g/m and radiation treated fish fed group of rat (R) 47 g/m. After 30 days the weight gain of rats recorded as, group (C) 324.6 g/m, (VL) 357.2 g/m, (VB) 362 g/m, (PL) 342 g/m, (PB) 323.6 g/m and (R) 352 g/m and 90 days after the body weight were group (C) 727.2 g/m, (VL) 781.2 g/m, (VB) 795.8 g/m, (PL) 780.4 g/m, (PB)764.8 g/m and R 789.8 g/m respectively. The present study is, the first attempt to use the rats body weight data found well and most suitable 4ml dose of V. negundo bark treated extracts than leaf treated group and 4 kGy radiation group. Histopathological changes of rats organs test liver was well preserved, kidney-the glomeruli, tubules, blood vessel were showed no significant changes, in the stomach-the mucosa, sub mucosa were well, in the spleen-red and white pulp were showed no significant changes, lung-the alveoli was good and in the muscle-the skeletal muscle were remain unaltered. Bangladesh J. Zool. 49(1): 125-135, 2021

scholarly journals Antimalarial Activity of Ethyl Acetate Extract and Fraction of Bidens pilosa against Plasmodium berghei (ANKA)

2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Noumedem Anangmo Christelle Nadia ◽  
Yamssi Cédric ◽  
Simeni Njonnou Sylvain Raoul ◽  
Ngongang Ouankou Christian ◽  
Mounvera Abdel Azizi ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Crude Extract ◽  
Plasmodium Berghei ◽  
Ethyl Acetate Extract ◽  
Antimalarial Activity ◽  
Hematological Parameters ◽  
Control Group ◽  
Bidens Pilosa

Background. Malaria is one of the most critical diseases causing about 219 million cases worldwide in developing countries. The spread and development of resistance against chemical antimalarial drugs is one of the major problems associated with malaria control. The present study was to investigate the antimalarial efficacy of ethyl acetate extract and one fraction of Bidens pilosa in vivo in order to support the usage of this plant by traditional healers to treat malaria. Methods. The extracts were prepared by maceration of B. pilosa leaf powder in ethyl acetate. The liquid filtrate of the extract and the best in vitro antiplasmodial fraction using HPLC were concentrated and evaporated using a rotavapor under vacuum to dryness. The antimalarial activity of B. pilosa plant products were evaluated in vivo against Plasmodium berghei infected mice according to the Peter and Rane test. The antimalarial efficacy of the a selected crude extract (ethyl acetate extract) was evaluated at 125, 250, and 500 mg/kg, while a selected fraction from ethyl acetate extract (fraction 12) was evaluated at 62.5 and 125 mg/kg. Blood from experimental animals was collected to assess hematological parameters. Results. The crude extract of ethyl acetate and fraction 12 demonstrated 100% in vivo parasite suppressive activity at doses of 500 mg/kg and 125 mg/kg, respectively, for the crude extract and fraction 12. The mice treated with 250 and 500 mg/kg had their parasitemia (intraerythrocytic phase of P. Berghei) drop considerably, disappearing by the 8th day in mice receiving 500 mg/kg. The ethyl acetate extract of B. pilosa, fraction 12 showed an even higher antiplasmodial activity. By the 5th day of the experiment, the treatment led to a modification of hematological parameters in mice. The chloroquine (5 mg/kg), fraction 12 (125 mg/kg), and the crude extract (500 mg/kg) groups all survived the 30 days of the experiment, while the negative control group registered 100% of the deaths. Conclusion. This study scientifically supports the use of Bidens pilosa leaves in the traditional treatment of malaria. However, the mode of action and in vivo toxicity of the plant still need to be assessed.

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