scholarly journals Antidiarrheal Activity of Dissotis multiflora (Sm) Triana (Melastomataceae) Leaf Extract in Wistar Rats and Subacute Toxicity Evaluation

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Alian Désiré Afagnigni ◽  
Maximilienne Ascension Nyegue ◽  
Chantal Florentine Ndoye Foe ◽  
Youchahou Njankouo Ndam ◽  
Frédéric Nico Njayou ◽  
...  
Keyword(s):  
Wistar Rats ◽  
Leaf Extract ◽  
Shigella Flexneri ◽  
Female Rats ◽  
Male Rats ◽  
Dependent Manner ◽  
Subacute Toxicity ◽  
Antidiarrheal Activity ◽  
Dose Dependent ◽  
Ethanolic Leaf Extract

The present work was undertaken to evaluate antidiarrheal activity of ethanolic leaf extract of Dissotis multiflora (Sm) Triana (D. multiflora) on Shigella flexneri-induced diarrhea in Wistar rats and its subacute toxicity. Diarrhea was induced by oral administration of 1.2 × 109 cells/mL S. flexneri to rats. Antidiarrheal activity was investigated in rats with the doses of 111.42 mg/kg, 222.84 mg/kg, and 445.68 mg/kg. The level of biochemical parameters was assessed and organs histology examined by 14 days’ subacute toxicity. S. flexneri stool load decreased significantly in dose-dependent manner. The level of ALT increased (p<0.05) in male rats treated with the dose of 445.68 mg/kg while creatinine level increased in rats treated with both doses. In female rats, a significant decrease (p<0.05) of the level of AST and creatinine was noted in rats treated with the dose of 222.84 mg/kg of D. multiflora. Histological exams of kidney and liver of treated rats showed architectural modifications at the dose of 445.68 mg/kg. This finding suggests that D. multiflora leaf extract is efficient against diarrhea caused by S. flexneri but the treatment with doses lower than 222.84 mg/kg is recommended while further study is required to define the exact efficient nontoxic dose.

scholarly journals Toxicity and Activity of Ethanolic Leaf Extract of Paullinia pinnata Linn (Sapindaceae) in Shigella flexneri–Induced Diarrhea in Wistar Rats

2020 ◽  
Vol 25 ◽  
pp. 2515690X1990088
Author(s):  
Maximilienne Ascension Nyegue ◽  
Alian Désiré Afagnigni ◽  
Youchahou Njankouo Ndam ◽  
Steve Valdi Djova ◽  
Marie Christine Fonkoua ◽  
...  
Keyword(s):  
Leaf Extract ◽  
Shigella Flexneri ◽  
Folk Medicine ◽  
Female Rats ◽  
Male Rats ◽  
Infectious Diarrhea ◽  
Herbal Products ◽  
Male And Female Rats ◽  
Liver And Kidney ◽  
Ethanolic Leaf Extract

Herbal products from Paullinia pinnata Linn are widely used in African folk medicine to treat several infectious diseases. Although the extracts from this plant has been shown to possess antimicrobial potential, their activity in infectious diarrhea is less reported. Diarrhea was induced by oral administration of 1.2 × 109 CFU/mL of Shigella flexneri to the rats. The infected rats were treated for 5 days with the doses of 111.42, 222.84, and 445.68 mg/kg of P pinnata. The level of biochemical parameters was assessed and histology of organs examined by 14 days subacute toxicity. S flexneri stool load was considerably reduced after 4 days of treatment with the dose of 445.68 mg/kg, 5 days at the dose of 222.84 mg/kg for the extract, and 2 days with ciprofloxacin. The dose of 111.42 mg/kg appeared efficient after 5 days of treatment. The creatinine level increased at the dose of 445.68 mg/kg in both male and female rats and decrease at the dose of 222.84 mg/mL in female rats while an increase was noted in the male rats. Liver and kidney histology were modified at the dose of 445.68 mg/kg while no change was observed at the doses of 111.42 and 222.84 mg/kg. P pinnata leaf extract is efficient against infectious diarrhea at 111.42 mg/kg without side effect.

scholarly journals Acute and sub-acute oral toxicity of aqueous whole leaf and green rind extracts of Aloe vera in Wistar rats

2022 ◽  
Vol 22 (1) ◽  
Author(s):  
Florence Nalimu ◽  
Joseph Oloro ◽  
Emanuel L. Peter ◽  
Patrick Engeu Ogwang
Keyword(s):  
Toxicity Test ◽  
Wistar Rats ◽  
Leaf Extract ◽  
Aloe Vera ◽  
Female Rats ◽  
Male Rats ◽  
Aqueous Extracts ◽  
Acute Oral Toxicity ◽  
Oral Toxicity ◽  
Leaf Extracts

Abstract Background Several local communities in Central, Western, Eastern, and Northern regions of Uganda have been using the whole leaf extracts of Aloe vera (L.) Burm. f. (Asphodelaceae) in the treatment of various ailments. Also, several commercial companies sell A. vera as soft drinks in Uganda. However, there are inadequate reports on the toxicities of such preparations. This paper reports the acute and sub-acute oral toxicity of aqueous extracts of whole leaf and green rind of A. vera in Wistar rats. Methods Acute oral toxicity test was carried out in female Wistar rats at doses of 175, 550, 1750, and 5000 mg/kg, p.o. The animals were observed for signs of toxicity for 14 days. Similarly, a sub-acute oral toxicity test was performed in both sexes of rats at doses of 200, 400, and 800 mg/kg, p.o. daily for 28 days. All the groups of animals were monitored for behavioral, morphological, biochemical, and physiological changes, including mortality and compared with respective controls. Body weights were measured weekly while the animals’ relative organ weights, hematological, biochemical, gross, and microscopic pathology were examined on day 29. Results There was no mortality or apparent behavioral changes at the doses tested in acute and sub-acute oral toxicity tests. Thus, the Median Lethal Dose (LD50) of green rind and whole leaf aqueous extracts was above 5000 mg/kg. Gross anatomy revealed that the rats’ relative spleen weight in green rind extract at 200 mg/kg significantly decreased compared to the control group. The creatinine levels in female rats that received green rind extract and the chloride ion levels in male rats administered whole leaf extract were significantly elevated. Conversely, Mean Corpuscular Hemoglobin Concentration (MCHC) levels significantly decreased at lower doses of the green rind extract compared to the control. Histopathology of the kidney revealed the renal interstitium’s inflammation at doses of 200 and 800 mg/kg of the whole leaf extract. Conclusion The findings demonstrated that A. vera green rind and whole leaf extracts are non-toxic at relatively high doses when used for a short duration. Prolonged use of the aqueous whole leaf extract might be associated with kidney toxicity.

scholarly journals ANNONA MURICATA LINN. ETHANOLIC LEAF EXTRACT AMELIORATES REPRODUCTIVE COMPLICATIONS IN STREPTOZOTOCIN-INDUCED DIABETIC WISTAR RATS

2020 ◽  
Vol 18 (1) ◽  
pp. 166-175
Author(s):  
O. E. ADELEYE ◽  
N. A. ABOAJAH ◽  
A. I. ADELEYE ◽  
E. A.O. SOGEBI ◽  
F. M. MSHELBWALA ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Wistar Rats ◽  
Leaf Extract ◽  
Sperm Count ◽  
Fasting Blood Glucose ◽  
Diabetic Rats ◽  
Male Rats ◽  
Annona Muricata ◽  
Major Health Problem ◽  
Ethanolic Leaf Extract

Diabetes mellitus is an endocrine and metabolic disorder of humans and animals characterized by hyperglycemia and low blood insulin levels or insensitivity of target organs to insulin and it’s a major health problem affecting patient’s quality of life due to its many complications. Infertility is one of the major secondary complications in diabetes. Although numerous drugs have been used for intervention studies on diabetes-induced infertility worldwide, there are currently no treatments for diabetes associated infertility in humans. This study was performed to investigate the effects of Annona muricata ethanolic leaf extract (AMELE) on fertility of male diabetic rats and levels of blood glucose. Twenty male Wistar rats (150-200g) were randomly distributed into 4 groups (n=5) treated thus: CTRL (control), DNT, DT1 and DT2 (diabetic, single intraperitoneal injection, streptozotocin, 60 mg/kg). Group DT1 and DT2 received AMELE orally at 100 mg/kg and 200 mg/kg respectively daily for fourteen days. Data were analysed using ANOVA at α0.05. The animals were sacrificed after 2 weeks via thiopental injection and testicular weights were recorded. Fasting blood glucose was determined using a digital glucometer. Sperm count, motility, viability and morphology were assessed microscopically. Testes were histologically evaluated. The results showed that oral administration of AMELE at 100 mg/kg and 200 mg/kg to diabetic male rats for fourteen days significantly decreased blood glucose level and also ameliorated diabetes-induced decreases in sperm functions in streptozotocin-induced diabetic male rats.    

Post-somatostatin rebound secretion of growth hormone is dependent on growth hormone-releasing factor in unrestrained female rats

1989 ◽  
Vol 122 (2) ◽  
pp. 583-591 ◽  
Author(s):  
H. Sugihara ◽  
S. Minami ◽  
I. Wakabayashi
Keyword(s):  
Growth Hormone ◽  
Adult Female ◽  
Wistar Rats ◽  
Bolus Injection ◽  
Female Rats ◽  
Dependent Manner ◽  
Gh Secretion ◽  
Female Wistar Rats ◽  
Plasma Gh ◽  
Dose Dependent

ABSTRACT To examine the characteristics of GH secretion following the termination of the infusion of somatostatin, unrestrained adult female Wistar rats were subjected to repeated infusions of somatostatin separated by 30-min control periods. When somatostatin was infused for 150 min at a dose of 3, 30 or 300 μg/kg body wt per h, the magnitude of the rebound GH secretion increased in a dose-dependent manner. The infusion of somatostatin at a dose of 300 μg/kg body wt per h for 60, 150 or 240 min progressively augmented the size of the rebound GH secretion. When an antiserum to rat GH-releasing factor (GRF) was injected i.v. 10 min before the end of the infusion, the peak amplitude of the rebound GH secretion (300 μg/kg body wt, 150 min) was reduced to less than 20% of that of control rats. The rebound GH secretion (300 μg/kg body wt per h, 150 min) was augmented by a bolus injection of human GRF (1 μg/kg body wt). The combined effect of the end of infusion of somatostatin and a bolus injection of GRF on the amount of GH secreted was additive. The plasma GH response to GRF was completely inhibited when human GRF (3 μg/kg body wt per h) and somatostatin (300 μg/kg body wt per h) were infused simultaneously for 150 min. The magnitude of the rebound GH secretion following the termination of the co-administration was larger than that following the somatostatin infusion alone, but this rebound was not enhanced by a bolus injection of human GRF. Moreover, the amount of GH secreted was significantly less than that after the termination of somatostatin infusion plus a bolus injection of human GRF in the absence of preceding GRF administration. These results suggest that at least part of the influence of somatostatin on GH secretion is exerted at the level of the hypothalamus through modulating the release of GRF. In addition, it is inferred that the simultaneous infusion of GRF and somatostatin induces the attenuation of the GH response to GRF through a receptor effect. Journal of Endocrinology (1989) 122, 583–591

scholarly journals Screening of liver protective effect of ethanolic leaf extract of Callicarpa lanata (EECL) in ethanol induced hepatotoxicity in wister rats

2019 ◽  
Vol 8 (3) ◽  
pp. 595
Author(s):  
Zulfkar Latief Qadrie ◽  
Rajkapoor Balasubramanium ◽  
Shakil U. Rehman
Keyword(s):  
Body Weight ◽  
Liver Injury ◽  
Dose Level ◽  
Leaf Extract ◽  
Total Bilirubin ◽  
Hepatoprotective Activity ◽  
Dependent Manner ◽  
Dose Dependent ◽  
Serum Glutamate ◽  
Ethanolic Leaf Extract

Background: The ethanolic extract of Callicarpa lanata (EECL), belonging to the family Verbenaceae, were studied for hepatoprotective activity in Wister rats with liver damage induced by ethanol.Methods: Ethanol treated rats showed significant increase in the levels of serum enzyme activities, total bilirubin and reduction in total proteins reflecting the liver injury caused by ethanol. EECL, at a dose of 400 and 200mg/kg body weight exhibited hepatoprotective effect by lowering the Serum Glutamate Pyruvate Transaminase (SGPT), Serum Glutamate Oxaloacetate Transaminase (SGOT), Serum Alkaline Phosphate (SALP), Gama Glutamyl Transpeptidase (GGTP), total Bilirubin to a significant extent and also significantly increased the levels of total protein in a dose dependent manner.Results: The results were highly significant at dose level of 400mg/kg body weight (p <0.01) and significant at dose level of 200mg/kg body weight (p <0.05). The effects of EECL at both levels were comparable with standard drug silymarin. The hepatoprotective activity was also supported by histopathological studies of liver tissue.Conclusions: In-vivo hepatoprotective activity of ethanolic leaf extract of Callicarpa lanata (EECL) against Ethanol induced acute liver injury in rats showed significant results in a dose dependent manner.

scholarly journals ANTIFERTILITY ACTIVITY OF DECASCHISTIA CROTONIFOLIA LEAF EXTRACT ON MALE RATS

2019 ◽  
pp. 190-192
Author(s):  
AFSAR SHAIK ◽  
PRASANNA RAJU YALAVARTHI ◽  
CHANDRASEKHAR KOTHAPALLI BONNOTH
Keyword(s):  
Plant Extract ◽  
Normal Saline ◽  
Wistar Rats ◽  
Leaf Extract ◽  
Sperm Count ◽  
Male Rats ◽  
Testosterone Levels ◽  
Group I ◽  
Male Wistar Rats ◽  
Dose Dependent

Objective: The objective was to investigate the male antifertility effect of Decaschistia crotonifolia leaf extract on male Wistar rats. Methods: The animals were divided into three groups of five animals each. The first group (I) served as control and received normal saline, and remaining Groups II and III were treated with plant extract at a dose of 200 and 400 mg/kg p.o., respectively, for 21 days. Results: Dose-dependent significant decrease in the weight of testes and epididymis was observed. Furthermore, a dose-related reduction in sperm count and motility was observed. A significant decrease in testosterone levels leading to infertility was also observed. Conclusion: The 70% methanolic leaf extract of D. crotonifolia has produced dose-dependent antifertility effect on male rats.

scholarly journals Toxicity Evaluation ofAnacardium occidentale, the Potential Aphrodisiac Herb

2019 ◽  
Vol 2019 ◽  
pp. 1-20
Author(s):  
Jintanaporn Wattanathorn ◽  
Panakaporn Wannanon ◽  
Supaporn Muchimapura ◽  
Wipawee Thukham-Mee ◽  
Terdthai Tong-Un ◽  
...  
Keyword(s):  
Blood Cell ◽  
White Blood Cell ◽  
Wistar Rats ◽  
Leaf Extract ◽  
Female Rats ◽  
Male Rats ◽  
Enhancement Effect ◽  
Cytotoxicity Test ◽  
Toxicity Evaluation ◽  
Subchronic Toxicity

Anacardium occidentaleL. leaf demonstrates sexual enhancement effect. Therefore, it can be used as the potential supplement and functional ingredient. However, the ethanolic leaf extract of this plant is a modified form of traditional application and the toxicity evaluation is required. To assess cytotoxicity of the extract, RAW 264.7 cells were treated withA. occidentaleleaf extract in the concentration range between 0.625 and 10 mg/mL. Our results showed that the extract showed more than 90% cell viability at the concentration of 2.5 mg/mL after 24-hour exposure. To assure the consumption safety, the acute and subchronic toxicity must be studied. Acute toxicity showed that the extract is safe even at the highest dose of 2 g/kg in both sexes of Wistar rats. No changes in behavior, physiology, gross pathology, and histology were observed. To determine the subchronic toxicity of extract, both sexes of Wistar rats were orally given the extract at doses of 20, 100, and 500 mg/kg once daily for 90 days. No changes in body weight, food, and water intake, motor coordination, behavior, and mental alertness were observed. The significant reduction of white blood cell, platelet, and cholesterol together with increase in MCHC was observed in male rats. The reductions of white blood cell and platelet together with the elevations of hemoglobin and hematocrit were also observed in female rats. However, all changes were in normal range. The current results revealed that an ethanolic extract ofA. occidentaleleaf was well tolerated via oral consumption up to dose of 500 mg/kg BW for 90 days and did not produce any toxicity. Ourin vitrocytotoxicity test also confirmed this safety.

scholarly journals Anti-inflammatory potentials, membrane stabilizing and xanthine oxidase inhibitory activities of Clerodendrum volibule ethanolic leaf extract on carragenaan- induced inflammation in rats

2018 ◽  
Vol 6 (1) ◽  
pp. 7 ◽  
Author(s):  
Olarenwaju Olufunmilayo. ◽  
OLOGE Mary ◽  
Oyemitan Idris ◽  
AKOMOLAFE Rufus ◽  
Akinpelu Bola ◽  
...  
Keyword(s):  
Xanthine Oxidase ◽  
Leaf Extract ◽  
Dependent Manner ◽  
Inflammatory Conditions ◽  
Paw Oedema ◽  
Anti Inflammatory ◽  
Rat Paw ◽  
Dose Dependent ◽  
Ethanolic Leaf Extract ◽  
Rat Paw Oedema

The folkloric use of Clerodendrum volubile P Beauv (Verbenaceae) for treatment of inflammatory conditions in the Southern part of Nigeria has been reported. The anti-inflammatory action of the ethanolic leaf extract on carrageenan-induced rat paw oedema, lipoxygenase and xanthine oxidase inhibitory effects, and membrane stabilizing potential were evaluated. The extract reduced carrageenan-induced rat paw oedema in a dose dependent manner compared to control group. C. volubile inhibited xanthine oxidase activity in a dose - dependent manner; at 0.5 mg/ml it exhibited maximum inhibitory activity of 95.48% while the standard drug, allopurinol exhibited 70 % inhibition. The extract significantly inhibited lipoxygenase activity, with highest activity at 0.4 mg/ml while Quercetin showed maximum inhibition of the enzyme at 0.1 mg/ml. The extract and Acetaminophen exhibited maximum membrane stabilizing activity of 91.85 ± 0.50% and 94.32 ± 0.32% at 2.5 mg/ml respectively. These findings provide justification for the traditional use of C. volubile in inflammatory conditions.

Anticancer Activities of Phlogacanthus pulcherrimus T. Anderson Leaves Extract on MCF-7 Breast Cancer Cells

2021 ◽  
Vol 901 ◽  
pp. 16-21
Author(s):  
Supavadee Boontha ◽  
Benjaporn Buranrat ◽  
Prapapan Temkitthawon ◽  
Tasana Pitaksuteepong
Keyword(s):  
Breast Cancer ◽  
Cell Migration ◽  
Cancer Cells ◽  
Breast Cancer Cells ◽  
Leaf Extract ◽  
Dependent Manner ◽  
Ros Formation ◽  
Dose Dependent ◽  
Ethanolic Leaf Extract ◽  
Mcf 7

Phlogacanthus pulcherrimus T. Anderson (PPT) is an edible plant found in the northern and northeastern regions of Thailand. There is limited information about the anti-breast cancer activity of the ethanolic leaf extract of PPT. This study aimed to evaluate the effects of an ethanolic leaf extract of PPT on MCF-7 breast cancer cell lines. The biological effects, including cytotoxicity, cell apoptosis, colony formation, reactive oxygen species (ROS) formation and cell migration, were determined by a means of sulforhodamine B (SRB), acridine orange/ethidium bromide (AO/EB) staining, a clonogenic assay, flow cytometry and a scratch wound healing assay, respectively. The results demonstrated that the PPT extract showed cytotoxic on MCF-7 cells in a dose-dependent manner with 50% inhibitory concentration (IC50) values of 119.9 ± 12.1 and 51.3 ± 4.7 μg/mL at 24 h and 48 h incubation, respectively. In addition, the extract exhibited cell apoptosis in a dose-dependent manner when used at a concentration of 50–100 μg/mL and inhibited colony formation with an IC50 value of 26.0 ± 2.0 μg/mL when compared with the control group. The extract induced ROS formation in a dose-dependent manner when used at a concentration of 50–100 μg/mL. The extract suppressed MCF-7 cell migration, with significant effect at 25 μg/mL. These results indicate that PPT ethanolic leaf extract has an anticancer activity against MCF-7 breast cancer cells and may be useful for prevention and treatment of breast cancer.

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