Aqueous Leaf Extract of Duranta repens Promotes Seed Germination and Seedling Growth of Salinity-Stressed Solanum lycopersicum Seedlings.

2018 ◽  
Vol 7 (2) ◽  
Author(s):  
Shuaib olasupo Osineye
Keyword(s):  
Solanum Lycopersicum ◽  
Leaf Extract ◽  
Growth Parameters ◽  
Chlorophyll Concentration ◽  
Allelopathic Effect ◽  
Distilled Water ◽  
Positive Role ◽  
Aqueous Leaf Extract ◽  
Group 5 ◽  
Group 2

Aqueous extract of Duranta repens leaves was investigated for its allelopathic effect on Solanum lycopersicum seedlings germinated and grown under salinity condition. The study was carried out using both laboratory petridish and pot assays to simulate the plant’s immediate environmental conditions. The experiment consisted of 5 groups (1-5) each containing 4 replicates (of 10 seeds). Group 1 was treated with distilled water; Group 2 was treated with 5 mM NaCl; Group 3 was treated with Duranta repens aqueous leaf extract, Group 4 was treated with a mixture of 5 mM NaCl and the extract (2:1 v/v) and Group 5 was treated with a mixture of 5 mM NaCl and the extract (1:2 v/v). Results from the studies revealed that treatment with NaCl caused significant (p < 0.05) reduction in percentage germination and growth parameters (plumule and radicle lengths) of S. lycopersicum seedlings, when compared to those treated with distilled water and D. rupens aqueous leaf extract. NaCl treatment (Group 2) also caused an increase in malondialdehyde (MDA) and also increased the activities of superoxide dismutase (SOD) and catalase (CAT) while reducing chlorophyll concentration of the plants. However, in the presence of the extract, the adverse effects of the NaCl were attenuated, implying that the extract improved tolerance of S. lycopersicum seedlings. In conclusion, the findings of this study indicate that the constituents of the extract may play a positive role in plant survival under saline conditions and could be employed in the management of soil salinity problem in agriculture.

scholarly journals Nephroprotective Property of C. chayamansa Aqueous Leaf Extract in Diabetic Rats

2020 ◽  
pp. 72-84
Author(s):  
Jonathan Dingkwoet Dabak ◽  
Rose Titus Kuyambana ◽  
Titilayo Omolara Johnson ◽  
Jonathan Latrwang Dabal
Keyword(s):  
Uric Acid ◽  
Leaf Extract ◽  
Diabetic Rats ◽  
Histopathological Study ◽  
Standard Drug ◽  
Aqueous Leaf Extract ◽  
Group 5 ◽  
Group 2 ◽  
High Doses ◽  
Test Control

Aim: To evaluate the nephroprotective property of Cnidoscolus chayamansa aqueous leaf extract in diabetic rats. Study Design: Rats were randomly divided into five groups with group 1 as the normal control. Diabetic was induced in groups 2-4. Group 2 was used as the test control while groups 3 and 4 were treated with different concentrations of the leaf extract; group 5 was treated with the standard drug, glipizide. Place and Duration of Study: Departments of Biochemistry and Anatomy, University of Jos, Nigeria, between August to November, 2019. Methodology: Fourty (40) male albino Wistar rats were grouped into five groups. The rats were treated for fourteen days and then sacrificed by decapitation after anaesthesia. Blood was collected for biochemical parameters; kidney was excised and stored in formaldehyde until required for histopathological study. Serum urea, creatinine, uric acid, sodium, potassium, chloride and bicarbonate were determined using appropriate methods. Results: The test control had a significant (P < .05) decrease in the concentrations of Na+, Cl- and HCO3- ions; significant (P < .05) increases in serum K+ ion, urea, uric acid and creatinine. Treatments of the test groups with the different doses of the leaf extract and the standard drug increased the concentration of Na+ ion which was not significantly (P < .05) different from the test control. On the other hand, the concentration of Cl- and HCO- ions  were significantly (P < .05) increased; the concentrations of K+, urea, uric acid and creatinine were significantly (P < .05) decreased. The histochemistry of the kidneys revealed that the injury brought about under diabetic condition was ameliorated with the treatments with the low and high doses of the leaf extract, and the standard drug. Conclusion: The results show that the aqueous leaf extract has nephroprotective property.

scholarly journals Hibiscus sabdariffa Aqueous Leaf Extract Reverses Hematological Alterations in Phenylhydrazine Anemic Wistar Rats

2020 ◽  
pp. 30-38
Author(s):  
E. B. Umoren ◽  
T. A. Kolawole ◽  
I. Wopara ◽  
O. G. Adebayo ◽  
B. Ben-Azu ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
Leaf Extract ◽  
Hemoglobin Concentration ◽  
Control Group ◽  
Mean Corpuscular Hemoglobin ◽  
Hibiscus Sabdariffa ◽  
Aqueous Leaf Extract ◽  
Group 3 ◽  
Group 2 ◽  
Hb Concentration

Background: The extract of Hibiscus sabdariffa commonly known as Sobo is widely consumed for its nutritional and health benefits. This study investigated the effect of aqueous leaf extract of  H. sabdariffa on anemic condition caused by phenylhydrazine in rats. Materials and Methods: Thirty (30) rats used for this study were divided into three groups of 10 rats each. Group 1 received distilled water and served as control. Group 2 received phenylhydrazine (40 mg/kg, i.p.). Group 3 was treated with phenylhydrazine (40 mg/kg, i.p.) 30 minutes prior to administration of (200 mg/kg, p.o.) aqueous extract of H. sabdariffa (Sobo) once daily for 14 days. At the end, 2 ml blood samples were collected through cardiac puncture into clean sample bottles containing ethylenediamine tetra acetic acid (EDTA) for hematological analyses. Results: Sobo significantly increased (P<0.05) hemoglobin (Hb) concentration and packed cell volume (PCV) in the phenylhdrazine-treated rats. Also, Sobo significantly (P<0.05) increased total white blood cell (TWBC) in phenylhydrazine administered rats. However, the extract did not produce any significant effect on mean corpuscular hemoglobin concentration (MCHC) relative to control and anemic groups. Conclusion: The findings from this study revealed that the aqueous extract of H. sabdariffa demonstrates anti-anemic effect in rats treated with phenylhydrazine, suggesting its ethno-pharmacological beneficial effect in anemic conditions.

scholarly journals Prolonged Administration of Leaf Extract of Ocimum gratissimum Reduces RBC, PCV and Platelet Count but Increases Total WBC and Lymphocyte Counts in Rats

2019 ◽  
pp. 1-8
Author(s):  
E. O. Aribo ◽  
O. E. Ofem ◽  
M. E. Moses
Keyword(s):  
Platelet Count ◽  
Neutrophil Count ◽  
Leaf Extract ◽  
Free Access ◽  
Ocimum Gratissimum ◽  
Group 4 ◽  
Aqueous Leaf Extract ◽  
Group 2 ◽  
Wbc Count ◽  
Rbc Count

Background: Ocimum gratissimum is an ethnopharmacological plant with numerous healing potentials. But there is paucity in scientific literature on its impact on the blood cells. Aim and Objective: The present study was intended to evaluate the dose and time-dependent effect of aqueous leaf extract of Ocimum gratissimum on some haematological in albino Wistar rats. Methods: Twenty four rats were randomly assigned to four equal groups. Group 1 was control, groups 2, 3 and 4 were given 450 mg/kg, 800 mg/kg and 1800 mg/kg respectively of the extract daily for 30 days. All rats had free access to water and rat chow. Results: The result showed a significantly lower RBC count in groups 3 and 4 when compared with control (p<0.05 and p<0.01 respectively). PCV was significantly lower in group 4 than control (p<0.05). Platelet count was significantly lower in group 4 than control (p<0.05) and group 2 (p<0.05). A significant increase in WBC count was observed in groups 2 and 3 when compared with control (p<0.05 and p<0.01 respectively). A significant reduction in neutrophil count was observed in groups 2, 3 and 4 compared with control (p<0.05; p< 0.05 and p<0.01 respectively). There were significant increases in lymphocyte counts in groups 2, 3 and 4 when compared with control (p<0.05, p<0.01 and p<0.01 respectively). There were no significant changes in MCV, MCH and MCHC in the groups. Conclusion: In conclusion, aqueous leaf extract of Ocimum gratissimum causes reduction in RBC count, PCV, platelet count and neutrophil count but causes increases in total WBC count and lymphocyte count.

scholarly journals The In vivo Antioxidant Protective Activity of Mangifera indica Cold Aqueous Leaf Extract in Drosophila Melanogaster

2019 ◽  
pp. 1-7
Author(s):  
Etuh, Monday Alexander ◽  
John C. Aguiyi ◽  
Ochala, Sunshine Ogwu ◽  
Omale Simeon ◽  
Oyeniran, Oluwatosin Imoleayo ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Leaf Extract ◽  
Mangifera Indica ◽  
Distilled Water ◽  
Protective Activity ◽  
Glutathione S Transferase ◽  
Total Thiol ◽  
Aqueous Leaf Extract ◽  
Thiol Content

Objective: To evaluate in vivo antioxidant activity of Mangifera indica cold aqueous leaf extract.  Methods: A number of 50 adult flies were exposed to graded concentrations of Mangifera indca cold aqueous leaf extract, 2.5 mg/10 g diet, 5 mg/10 g diet and 10 mg/10 g diet for 5 days. Each concentration was prepared in 200 µl of distilled water and replicated five times. 10 g diet with 200 µl distilled water served as control. Mortality reading was taken at 24 hours interval. The flies were homogenized, centrifuged and the supernatant was used to assay for Glutathione-S-transferase (GST), Catalase (CAT) and Total thiol content. Results: The % mortality of flies after 5 days showed 32.5%, 0%, 15.5% and 37% in the control (10 g diet with 200 µl of distilled water), 2.5 mg/10 g diet, 5 mg/10 g diet and 10 mg/ 10 g diet respectively. There was elevation in total thiol content and high GST and CAT activity in 2.5 mg/10 g diet and 5 mg/10 g diet treated flies. Conclusion: The 100% and 85% survival of 2.5 mg/10 g and 5 mg/10 g diet-treated flies respectively and increase of fly antioxidant system after 5 days exposure at these concentrations may suggest protective activity of Mangifera indica in D. melanogaster.

scholarly journals Propagation and Possible Allelopathic Effects of Vernoniazeylanica on Selected Bioassay Species

CORD ◽  
2020 ◽  
Vol 36 ◽  
pp. 41-46
Author(s):  
S.H.S. Senarathne ◽  
S. S. Udumann
Keyword(s):  
Seed Germination ◽  
Plant Species ◽  
Seedling Growth ◽  
Contaminated Soil ◽  
Leaf Extract ◽  
Cocos Nucifera ◽  
Test Plant ◽  
Allelopathic Effect ◽  
Aqueous Leaf Extract ◽  
Allelopathic Effects

Vernonia zeylanica (L.) belongs to the family Asteraceae, is one of the major endemic weed species present in coconut (Cocos nucifera L.) plantations of the tropics, which propagates very easily.  There is a possibility that this plant could also possess allelopathic effects, but this has not been scientifically tested.  Thus, a study was carried out to determine the seed germination of V. zeylanica under soil moisture stress conditions, shoot propagation methods and possible allopathic effects of this species, on selected species in bioassay tests.  Germination of V. zeylanica seeds was not observed at higher osmotic potential (-0.9 MPa).  The highest sprouting percentage of this species were obtained with soft wood cuttings.  The aqueous leaf extract was highly phytotoxic, and it significantly reduced germination and seedling growth of all bioassay species tested. Full strength (33.3 g L-1) aqueous extracts of leaves significantly reduced the germination percentage, root and hypocotyl growth rates of all species tested.  The inhibitory effects were often dependent on concentration.  However, the degree of inhibition varied among the test plant species.  The seedling emergences of all four tested plants were severally inhibited when planted in V. zeylanica contaminated soil.  The results indicated that incorporated aqueous leaf extract of V. zeylanica and its rhizosphere contaminated soil can suppress seed germination, seedling growth and seedling emergence of certain plant species indicating a possible allelopathic effect.

scholarly journals The Role of Serum Alpha-Amylase and Glycogen Synthase in the Anti-Diabetic Potential of Terminalia catappa Aqueous Leaf Extract in Diabetic Wistar Rats

2019 ◽  
pp. 1-11
Author(s):  
Ezekiel E. Ben ◽  
Asuquo E. Asuquo ◽  
D. U. Owu
Keyword(s):  
Body Weight ◽  
Blood Glucose ◽  
Wistar Rats ◽  
Leaf Extract ◽  
Glycogen Synthase ◽  
Alpha Amylase ◽  
Distilled Water ◽  
Terminalia Catappa ◽  
Aqueous Leaf Extract

Background: The endocrinal abnormalities in diabetes mellitus as one of the numerous metabolic disorders is associated with derangement in exocrine functions of the pancreas and ultimately influences blood glucose regulation. Aim: The study was aimed at assessing the role of alpha-amylase and glycogen synthase in anti-diabetic potential of Terminalia catappa in diabetic rats.  Materials and Methods: Thirty five (35) Wistar rats were assigned to 5 groups of 7 animals each. Group 1 served as the control administered distilled water at 5ml/kg bodyweight and group 2 was a non diabetic group given orally, 130/kg body weight of aqueous leaf extract of Terminalia catappa.  Groups 3, 4 and 5 received a single dose of 150mg/kg body weight of alloxan solution intraperitoneally to induce diabetes and rats with blood glucose levels ≥200mg/dl after 72 hours were considered diabetic. This was followed by oral administration of 5ml/kg bodyweight of distilled water, 130mg/kg body weight of Terminalia catappa leaf extract orally and subcutaneous administration of insulin, 0.75U/kg body weight to groups 3 (diabetic), 4(diabetic + extract) and 5 (diabetic + insulin) respectively. Results: The results showed significant (P<.05) increase in serum level of alpha-amylase and glycogen synthase in both non-diabetic extract treated and diabetic groups when compared to control. But these enzymes significantly (P<.05) reduced in diabetic extract and insulin treated groups when compared to the diabetic group.  Conclusion: Therefore the hypoglycaemic potential of Terminalia catappa leaf extract could be attributed to its ability to reduce alpha-amylase level while lowered glycogen synthase might be secondary to reduction in blood glucose.

scholarly journals Exposure of Biomimetic Composite Materials to Acidic Challenges: Influence on Flexural Resistance and Elastic Modulus

Biomimetics ◽  
2020 ◽  
Vol 5 (4) ◽  
pp. 56
Author(s):  
Andrea Scribante ◽  
Simone Gallo ◽  
Stefano Scarantino ◽  
Alberto Dagna ◽  
Claudio Poggio ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Composite Materials ◽  
Flexural Strength ◽  
Testing Machine ◽  
Distilled Water ◽  
Group 4 ◽  
Significant Difference ◽  
Group 5 ◽  
Group 2 ◽  
Flexural Resistance

Acidic conditions of the oral cavity, including soft drinks and cariogenic bacteria, represent a damage for restorative biomimetic composite materials. The aim of this study is to assess the influence of two different acidic challenges on the flexural strength and elastic modulus of five composites: x-tra fil (Group 1, XTF), GrandioSO x-tra (Group 2, GXT), Admira Fusion x-tra (Group 3, AFX), VisCalor bulk (Group 4, VCB), and Enamel Plus HRi (Group 5, EPH). Thirty samples for each group were randomly divided and assigned to three different treatments: storage in distilled water as the controls (subgroups 1a–5a), 3 weeks distilled water + 1 week Coca-Cola (subgroups 1b-5b), and 4 weeks Coca-Cola (subgroups 1c–5c). For each subgroup, the flexural strength and elastic modulus were measured using an Instron universal testing machine, and data were submitted to statistical analysis. Considering subgroups B, no material showed a significant difference in the flexural strength with the controls (p > 0.05), whereas for subgroups C, only GXT and VCB showed significantly lower values (p < 0.05). AFX reported the lowest flexural strength among the materials tested. As regards the elastic modulus, no material showed a significant variation after acidic storages when compared with the respective control (p > 0.05). AFX and EPH reported the lowest elastic modulus compared to the other materials. All composites tested showed adequate flexural properties according to the standards, except for AFX. This biomimetic material, along with EPH, might be indicated for V class (cervical) restorations considering the lowest values of elasticity reported.

scholarly journals Serum Levels of Some Inflammatory Markers in Alloxan- Induced Diabetic Rats Treated with Aqueous Leaf Extract of Terminalia catappa and Exogenous Insulin

2019 ◽  
pp. 1-9
Author(s):  
Ezekiel E. Ben ◽  
Asuquo E. Asuquo ◽  
D. U. Owu
Keyword(s):  
Body Weight ◽  
Inflammatory Markers ◽  
Leaf Extract ◽  
Serum Levels ◽  
Diabetic Rats ◽  
Diabetic Group ◽  
Distilled Water ◽  
Exogenous Insulin ◽  
Terminalia Catappa ◽  
Aqueous Leaf Extract

Background: Inflammation is said to be associated with hyperglycaemia and is implicated in the complications of diabetes. Aim: This study was designed to investigate the level of some inflammatory markers in blood of diabetic rats administered with aqueous leaf extract of Terminalia catappa and exogenous insulin.  Materials and Methods: Thirty five (35) Wistar rats were assigned to 5 groups of 7 animals each. Group 1 served as the control and received 5ml/kg body weight of distilled water and group 2 received orally, 130/kg body weight of aqueous leaf extract of Terminalia catappa. Groups 3 (diabetic only), 4 (diabetic + extract) and 5 (diabetic + insulin) were administered 150 mg/kg body weight of alloxan solution intraperitoneally to induce diabetes and blood glucose levels ≥200 mg/dl after 72 hours were considered diabetic. Then 5 ml/kg bodyweight of distilled water, 130 mg/kg body weight of Terminalia catappa leaf extract was given orally and 0.75U/kg body weight of insulin was administered subcutaneously to respective groups and the experiment lasted for 14 days. Results: The results showed significant (P< 0.05) increase in serum levels of C-reactive protein, Interleukin-6 and blood fibrinogen in diabetic group compared to control. These inflammatory biomarkers significantly (P<0.05) reduced in diabetic group treated with extract and insulin.  Conclusion: Therefore aqueous leaf extract of Terminalia catappa can reduce some inflammatory cytokines and ameliorate inflammation in diabetes similar to exogenous insulin.

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