scholarly journals Effect of the Aqueous Extract of Neem Leaves (Azadirachta indica A. Juss.) on the Control of Costalimaita ferruginea (Fabricius, 1801)

Author(s):  
Roldão Carlos Andrade Lima ◽  
Mauricélia Ferreira Almeida ◽  
Adriana de Sousa Freitas ◽  
Andressa Layane Ferreira Linhares ◽  
Bianca Pinheiro da Costa Neiva ◽  
...  

Aims: Evaluate the insecticidal effect of the aqueous extract of neem leaves on the control of Costalimaita ferruginea in eucalyptus. Place and Duration of Study: Entomology Laboratory of the Center for Agricultural Sciences (CCA) of the State University of the Tocantina Region of Maranhão (UEMASUL) between November 2016 and July 2017. Methodology: Neem aqueous extract solutions were tested at concentrations of 40, 60 and 80%, and the control group treated with mineral water. Leaves of eucalyptus seedlings were immersed in each concentration and individualized in Petri dishes together with the insects. The design was completely randomized with four treatments and ten repetitions, each repetition consisting of a Petri dish with an insect and a eucalyptus leaf. The evaluations were carried out daily, analyzing the mortality of adults, and the leaves were replaced by others submitted to the same treatment and procedure described above. Results: In the evaluations of 12, 60, 72 and 84 hours there was no significant difference. 36 hours after the implementation of the experiment, the 60% neem concentration resulted in 100% mortality of specimens. Conclusion: The 60% neem concentration is the most efficient due to its rapid effect on C. ferruginea mortality and economy of raw material for production.

2011 ◽  
Vol 10 (1) ◽  
pp. 26
Author(s):  
I Dewa Ayu Ratna Dewanti

Neem is one of the traditional medicine known by society as immunomodulator. On the other hand, 80% of oralinfection diseases is caused by C. albicans. This research is aimed to explain the phagocytosis activities on wistarrats which were inoculated with C. albicans and fed with neem leaves. There are 5 groups, namely control group(KO)with no treatment, the other treatment groups were classified into 4 groups. First group (KP1)was inoculatedwith C. albicans only. KP2 was fed with 50 mg/day/kg BW aqueous extracts from neem leaves, then inoculated withC. albicans start from day 8-21. KP3 was fed with 100 mg/day/kg BW aqueous extract from neem leaves, theninoculated with C. albicans start from day 8-21. KP4 was fed with 200 mg/day/kg BW aqueous extract from neemleaves, then inoculated with C. albicans start from day 8-21. On day 22, the tongue was swabbed for each group,then cut for immunohistochemistry preparation. The study that there was significant difference showed that therewere different results computed using anova, HSD test, and linier regression. The conclusion was neem leavesincreased the phagocytosis activity of wistar rats, inoculated with C.albicans.


2018 ◽  
Vol 6 (7) ◽  
pp. 1206-1214
Author(s):  
Ghassan Hamdan Jameel ◽  
Ali Ibrahim Ali AL-Ezzy ◽  
Ibrahim H. Mohammed

OBJECTIVES: To evaluate the Immunomodulatory, apoptosis induction and antitumor effects of aqueous and methanolic extracts of Calvatia craniiformis regarding the size of tumour mass, caspase-8 expression and apoptotic index (AI%) in mice transfected with murine hepatocellular carcinoma cell line (H22) as an experimental therapeutic system for human hepatocellular carcinoma.MATERIAL AND METHODS: Forty-eight Balb/C albino mice were transfected in legs with H22 cells. Tumour size was measured twice a week. Caspase-8 protein expression and apoptotic index determination evaluated by Immunohistochemistry.RESULTS: Tumor size significantly differed between the two groups of mice transfected with H22 cells; the first was treated with C. craniiformis aqueous extract (0.3, 0.6, 1.2) mg/kg and the second group was treated with C. craniiformis methanolic extract (0.25, 0.5, 1.0) mg/kg compared with control group. The inhibitory activity of aqueous and methanolic extracts was dose and duration dependent. The size of the tumour mass was reduced up to 87.9% when treated with 1.2 mg/kg aqueous extract and 1 mg/kg for methanolic extract. Caspase-8 expression was increased in a dose-dependent manner among H22 bearing mice treated with C. craniiformis aqueous extract (0.3, 0.6, 1.2) mg/kg. At 0.3 mg/kg, the intensity of expression was strong in (33.33%) and very strong in (66.67%). While at 0.6 mg/kg and 1.2 mg/kg the intensity of expression was strong in (33.33%) and very strong in (100%) with a significant difference (P ≤ 0.001). H22 bearing mice treated with (0.25, 0.5, 1.0) mg/kg C. craniiformis methanolic extract shows increased caspase-8 expression in a dose-dependent manner. At 0.25 mg/kg, the intensity of expression was strong in (33.33%) and very strong in (66.67%). While at 0.5 mg/kg, the intensity of expression was strong in (33.33%) and very strong in (100%). At 1.0 mg/kg, the intensity of expression was strong in (16.67%) and very strong in (83.33%) with significant difference (P ≤ 0.001). AI% of H22 bearing mice treated with C. craniiformis aqueous and methanolic extracts were significantly increased (P ≤ 0.05) compared with the untreated control group. No significant difference was reported in AI% between aqueous and methanolic extracts treated groups.CONCLUSIONS: Extracts of C. craniiformis were highly efficient in tumour growth inhibition, causing a reduction in the tumour size clinically and increase the expression of caspase-8 gene product in tumour tissue, causing increase apoptotic index of H22 cells taken from the legs of inoculated mice leading to loss of legs due to bone necrosis. Antitumor activity of C. craniiformis aqueous, and the methanolic extract was dose and duration dependent.


2021 ◽  
Author(s):  
Dyaan Malik ◽  
Esmeralda Pineda ◽  
Deyvis Mejia Zambrana

AbstractStaphylococcus epidermidis is a normal part of the human microbiome; however, it is an opportunistic pathogen and can cause infections when the delicate balance of this microbiome is disrupted. Furthermore, infections caused by this bacterium can be hard to treat as a result of antibiotic resistance and biofilm production. This experiment aimed to determine whether electromagnetic field radiation (ELF-EMF) could be a deterrent of bacterial growth, as an alternative treatment to antibiotics. A non-pathogenic strain of S. epidermidis was used for experimentation, which took place in a school laboratory setting. The experimental group was exposed to ELF-EMF, while the control group did not receive the ELF-EMF treatment. The number of bacterial colonies, represented as colony forming units (CFUs) and area of random colonies were calculated to determine the effect of this treatment. There was no dramatic difference of colony formation on days 0, 1, and 2 of the four day period of ELF-EMF exposure. However, colony formation for days 3 and 4 showed a significant difference between the control and the experimental groups, as the experimental group had a significantly higher CFU count than the control. The average CFU count for day 3 in the control group was 420.6 and 1,097.4 for the experimental group (p<0.0001, t=12.9803). On the final day of the experimentation (Day 4) the average CFU count for the control group was 424.6 and 896.4 for the experimental group (p<0.0001, t=5.8926). The area for five randomly chosen colonies from each petri dish was calculated on the fourth day of experimentation. The area for the experimental group was significantly lower than that control (p<0.0001, with t=6.8659). The average area for the control group was 1.3249 mm2 and a lower average of 0.6375mm2 for the experimental group. These results demonstrate that the ELF-EMF treatment had an inhibitory effect on the area growth of S. epidermidis, but not on the colony-forming ability of S. epidermidis. This suggests that ELF-EMF influences the means by which the bacterium S. epidermidis grows.


Author(s):  
E. K. Chukwunyere ◽  
P. C. Chikezie ◽  
P. C. Anuforo ◽  
J. Adejor ◽  
H. C. Nwankwo

Background: The effects of 800 mg% aqueous extract of T. catappa on membrane stability of human erythrocytes of HbSS genotype were investigated using in vitro studies. Aim: The aim of the study was to determine the membrane stabilizing potential of aqueous extract of T. catappa on sickle cell erythrocytes. Study Design: Laboratory Experimental Design was used in this study. Place and Duration: Department of Biochemistry, Imo State University, Owerri, Nigeria. The study was carried out between November, 2010 and May, 2011. Materials and Methods: Spectrophotometric method was employed in determining the osmotic fragility index of HbSS erythrocytes. The mean corpuscular fragility (MCF) of the control was 0.422 ± 0.80 g/100 ml, whereas that of the test sample was 0.36 ± 0.014 g/100 ml. The percentage stabilization for the HbSS erythrocytes, which was calculated using the MCF values, was 14.28%. The MCF values of the control and the test showed significant difference (p < 0.05). Results: The result showed that aqueous extract of T. catappa exhibited an increasing capacity to stabilize HbSS erythrocytes membrane. Conclusion: The present study showed that aqueous extract of T. catappa L. exhibited membrane stability potential on sickle cell erythrocytes.


2021 ◽  
Vol 11 (2) ◽  
pp. 56
Author(s):  
Tamara Yuanita ◽  
Mohammed Alaqsha Brysoul Ceson ◽  
Agus Subiyanto

Background: Staphylococcus aureus is a gram-positive bacteria play a role in the formation of dental biofilm which iscausing dental caries. During tooth preparation, to stop the growth of bacteria, a cavity cleaning agent is given using achemical, namely Benzalkonium Chloride (BAC) 0.1%, but BAC has disadvantages including allergic reactions, tolerantmicrobes, and resistance. Therefore, it is hoped that there will be herbal ingredients that can be used as an alternative.Cocoa peel extract has active compounds of tannins, flavonoids, alkaloids, terpenoids, and saponins which haveantibacterial concentration 6% according to safe concentrations. Purpose: To explain the difference in the effectivenessof the antibacterial power of 6% cocoa peel extract and 0.1% BAC against Staphylococcus aureus (in vitro). Methods:This study was a laboratory experimental in vitro with the posttest only control group design. Using the diffusion methodfor Staphylococcus aureus that divided into two parts, 6% cocoa peel extract and 0.1% BAC. Each petri dish was givendisc paper dripped with 0.01 ml of each test material, then incubated for two days and observed the diameter of theinhibition zone. Results: The average diameter of the inhibition zone formed in the 6% cacao peel extract was 11.5288mm and BAC 0.1% was 18.2925 mm against Staphylococcus aureus. Conclusion: There was a significant difference inthe effectiveness of antibacterial power (p <0.05) between 6% cacao peel extract (Theobroma cacao L.) and 0.1% BACagainst Staphylococcus aureus (In Vitro).


Author(s):  
ADETUNJI OPEYEMI ADEBOLA ◽  
OYEWO OLUWATOYIN ◽  
ADETUNJI IYABODE TOYIN ◽  
NWOBI NNENA LINDA

Aim and Objectives: Demonstrating the exact quantity of Moringa oleifera (MO) that will cure any hepatocyte diseases and the one that can harm the hepatocytes of the Adult Wistar rats. Methods: Twenty (20) adult Wistar rats (both sex) were used for the study (caged based on same sex to avoid mating and pregnancy) and were randomly assigned into four groups (n=5); A-Control, B-250 mg/body weight (BW) of MO, C-500 mg/BW of MO, and D-750 mg/BW of MO orally. Result: The crude aqueous extract of MO Lam, shows insignificant increased in BW at the 1st week of administration which latter dropped little by little doing the weeks of the administration in groups (B, C, and D) rats, by comparing (p<0.05) to the control group after MO administration, the organ (Kidneys) shows a significant difference between the kidneys (left and right kidneys) in relation to the control group rats. MO increases the weight of the animals morphologically by comparing the weight of the animals before and after administration. Histological sections shows a normal Glomerulli, Peri-Glomerular Space, Convoluted Tubules, and Interstitium, after administration of the Crude Aqueous Extract of MO lame in terms with the control group rats. Conclusion: MO is a good herb that has no damage effect on the body and hepatocytes but of more beneficial.


2021 ◽  
Vol 27 (1) ◽  
pp. 23-27
Author(s):  
Nour Athiroh ◽  
Ari Hayati ◽  
Istirochah Pudjiwati ◽  
Ahmad Taufiq ◽  
Nurul Jadid Mubarakati

This study was designed to evaluate the role of sliced and dropping models of neem leaves (Azadirachta indica) and environmental factors on zebrafish wound shrinkage. This study employed two treatment models: neem leaf slices and drops model. The treatment in the neem leaf slice model was the control group (fish was injured without neem leaf slices treatment, and G1-G3 of each fish was injured at 0.3 cm + 0.5, 1, and 2 g. Treatment in the neem leaf drop model was control group (fish was injured without neem leaves drops, and G1-G3 of each fish was injured at 0.3 cm + 1, 2, 4 drops. Findings suggest that there is a significant difference between the control group by treating G1, G2, and G3 on the shrinkage of zebrafish wound area both in the neem leaf slice and drop models, but G1 was not significantly different from G2 and G3, as well as G2 and G3 both in the neem leaf slice and drop model. Neem leaves contain nutrients that play a vital role in the formation of collagen and the formation of new capillaries to help speed up the wound healing process. The healing process involves the dynamic interaction of physiological factors.


Author(s):  
I. P. Ekpe ◽  
Dennis Amaechi ◽  
B. N. Yisa ◽  
O. G. Osarhiemen

Objectives: The objectives of this research is to evaluate the effects of aqueous extract of T. indica on  weight, lipid parameters, some electrolytes and urea of Wistar rats Design & Methods: Twenty-five Male  Adult  rats were grouped into four  consisting of six rats each. Group I served as control group, group II was administered 100mg/kg of the Aqueous extract, group III was administered 150mg/kg of the Aqueous extract, and Group IV was administered 200mg/kg of the Aqueous extract. The administration took place for seven days, and on the eight day, The Animals were sacrificed. The blood samples was collected via cardiac puncture and used for analysis using a visible spectrophotometer. Results: From the result, there was no significant difference (p<0.05) in body weight of Wistar rats. In the Test Groups; Serum cholesterol, low density lipoprotein (LDL), High density lipoprotein (HDL), Very Low-density Lipoprotein and Triglycerides revealed a significant increase (p<0.05) compared to Group 1 which is the control Group but had a significant decrease (p<0.05) compared within test groups. For electrolytes concentrations, potassium, Sodium, Chloride and Urea concentrations was significant at p<0.05. Conclusion: the results above ,T. indica extract may help to maintain healthy weight, may have hypolipidemic properties, may help in body homeostatic and fluid balance and may also prevent renal damages. 


2014 ◽  
Vol 43 (2) ◽  
pp. 138-141 ◽  
Author(s):  
SK Sarker ◽  
M Mostofa ◽  
F Akter ◽  
MM Rahman ◽  
MR Sultana

The study was conducted to determine the efficacy of aqueous extract of Neem leaves against colibacillosis and as a growth promoter in broilers. A total of 40 commercial day-old broiler chicks were randomly divided into four equal groups; viz. A, B, C and D. Group A was kept as non-treated control, Group B  and C was treated with 1% Neem leaves in drinking water for six weeks,  and colibacillosis was induced at 2nd week in group C and  D. In group D, Neem leaves treatment continued from 2nd to 6th week after the colibacillosis induction to compare its antibacterial efficacy to prophylactic effect. Escherichia coli induction rate was 200µl per bird where 1 ml contains approximately 1X106 CFU (Colony Forming Unit). Data were recorded for live body weight, weekly gain in weight and hematological parameters of birds for six weeks. Clinical examination and antibacterial sensitivity studies  suggests administration of aqueous extract of Neem leaves significantly (p<0.001) improved body weight gain in the Neem treated groups but did not prevent E. coli induced colibacillosis in broilers.DOI: http://dx.doi.org/10.3329/bjas.v43i2.20715 Bang. J. Anim. Sci. 2014. 43 (2): 138-141


2020 ◽  
Vol 11 (SPL4) ◽  
pp. 1025-1037
Author(s):  
Ez-zahir Abdeljaouad ◽  
Naya Abdallah ◽  
Seddik Nadia ◽  
Marnissi Farida ◽  
Belghmi Khalid ◽  
...  

Ammi visnaga L (A.V.) is used in the traditional medicine for the treatment of kidney stones, diabetes and vitiligo. An in vivo anti-psoriasis, anti-inflammatory activities and oral toxicity studies of aqueous extract from seeds of Ammi visnaga L. was investigated. In the acute toxicity, the extract was administered orally in a single dose to rats (0- 2000-5000 mg/kg) and in the sub-acute toxicity daily for 28 days (0-300-600-1000 mg/kg/day). The symptoms of toxicity and mortality have been recorded daily and during 14 days of recovery with an examination of liver, kidney, hematologic, biochemical and histological analysis at the end of treatment. The anti-inflammatory activity was evaluated by induction of oedema and the anti-psoriasis by induction of a psoriasiform-like skin phenotype by UV-B radiations. No mortality was observed after single gavages by a dose up to 5000 mg/kg and no signs of toxicity noted. Clinical and biochemical examination during 28 days of gavages at all doses showed no significant difference compared to control group, while a significant reduction in MCV (mean corpuscular volume) and P-LCR (platelet large cell ratio) (p <0.05), PDW (platelet distribution width) and MPV (multi-purpose vehicle) (p <0.01) was observed and histopathological examinations showed slight inflammation in the liver and kidneys for the higher dose. Percentage of inhibition of the oedema was near the positive control 50% for all doses tested. Treatment with A.V. extract had decreased the thickness of the skin induced by UV-B irradiation.  In conclusion, the LD50 was estimated greater than 5000 mg/kg; therefore A.V. can be classified as non-toxic but if used in the long term can induce a slight toxicity dose dependant with high anti-psoriasis and anti-inflammatory activities.


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