scholarly journals Safety Evaluation of Acute and Subacute Dermal Toxicity Potential against Penoxsulam Herbicide in Wistar Rats

2021 ◽  
pp. 16-28
Author(s):  
Vidushi Chaurasia ◽  
Madan Lal Aggarwal ◽  
Manoj Chandra Garg
Keyword(s):  
Body Weight ◽  
Wistar Rats ◽  
Dose Group ◽  
Clinical Signs ◽  
Female Rats ◽  
Control Group ◽  
High Dose ◽  
Skin Reactions ◽  
Toxic Reaction ◽  
Multiple Doses

Aims: The present experiment was conducted (comparative study) to determine the effect of single and repeated exposure of Penoxsulam herbicide by topical route. Study Design: To assess acute toxicity, rats were topically exposed by Penoxsulam at 2000 mg/kg body weight and all the animals were observed for 14 days experiment period while, in Subacute toxicity , the rats were topically exposed with Penoxsulam at three multiple dose levels; 200, 500, 1000 mg/kg body. weight once daily for 28 days. Place and Duration of Study: Toxicology department, Shriram Institute for Industrial Research, Delhi (INDIA), June 2018 and June 2019. Methodology: Acute study was carried out in 10 wistar rats and in subacute study the wistar rats were divided into 4 groups i.e., control group, low dose group, middle group, high dose group; 5 male and 5 female rats/ group at the age of 2-3 kg were exposed over a period of 28 days. After dose application the patch was removed and the test site were cleaned with cotton moistened with distilled water. Results: In both toxicity study found that there were no clinical signs of skin reactions (Draize method) and no significant P>0.05 changes were observed in Bodyweight, Biochemistry, and Histopathology among the treated as well as in control group of animals. Therefore, data of this study supports that topical exposure of Penoxsulam in rats were shown normal histology of liver, kidney, and skin at the multiple doses besides this; Penoxsulam does not have potential to produce acute and subacute adverse systemic toxic reaction to the animals. Conclusion: Therefore, data of this study supports that topical exposure of Penoxsulam in rats were shown normal histology of liver, kidney, and skin at the multiple doses besides this; Penoxsulam does not have potential to produce acute and subacute adverse systemic toxic reaction to the animals.

scholarly journals Ovarian profile of Wistar rats treated with Theobroa cacao extract.

2019 ◽  
Vol 8 (2) ◽  
pp. 1570-1576
Author(s):  
Kebe E. Obeten ◽  
Victor A. Fischer ◽  
Ugwuja O. Jennifer ◽  
Akim Bonaventure
Keyword(s):  
Body Weight ◽  
Theobroma Cacao ◽  
Dose Group ◽  
Low Dose ◽  
Research Work ◽  
Wistar Rat ◽  
Female Rats ◽  
Control Group ◽  
High Dose ◽  
Test Substance

The study was aimed at determining the effect of aqueous extract of Theobroma cacao on the histology of the ovary of female albino wistar rat. Twenty-four (24) adult wistar female rats weighting about 100- 160g were used for this research work and were divided into three (3) groups of eight (8) animals each. Group A; control, Group B; low dose and Group C; high dose with eight (8) animals in each group. Control group received vital feed; the low dose group was administered 240mgkg body weight of Theobroma cacao extract and the high dose group was administered 500mgkg body weight of the test substance. Extract was given daily by oral gavage method for twenty-one (21) days. Twenty-four hours after the last administration, all animals in each group were sacrificed under chloroform anesthesia. The ovaries were harvested, weighed and fixed in 10% buffered formalin for histological studies. Results showed that following administration of extract of Theoboma cacao at these doses, an insignificant decrease in organ weight was observed. Histological observation showed few follicles as well as loss of the substance of granulose cell this could possibly suggest decrease in production of sex steroids in the ovary.Keywords: Theobroma Cacao, Ovary, Histology

scholarly journals Subacute Toxicity Profile of Lacidipine Nanoformulation in Wistar Rats

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Rupesh Shirodkar ◽  
Chandrasekhar Misra ◽  
Chethan GH ◽  
Pallavi Shetty ◽  
Zenab Attari ◽  
...  
Keyword(s):  
Body Weight ◽  
Wistar Rats ◽  
The Body ◽  
Female Rats ◽  
Male Rats ◽  
Control Group ◽  
High Dose ◽  
Testis Weight ◽  
Delayed Effect ◽  
Male And Female Rats

The present study was aimed at investigating the safety of Lacidipine (LCDP) loaded nanostructured lipid carriers (NLCs) in Wistar rats. NLCs were formulated using ultrasound dispersion technique. Animals were orally treated once daily with NLCs containing 0.140 mg, 0.350 mg, and 0.875 mg of LCDP as low, medium, and high dose per kg body weight, respectively, during 28 days along with blank formulation and pure LCDP. Control rats were fed with water. Animals were observed throughout experiment period and their body weight was recorded once weekly. Overnight fasted rats were sacrificed on the 29th day. Study revealed no signs or symptoms of toxicity or morbidity. No significant changes in the body weight were observed between treated and control group. Significant increase in left testis weight and liver weight was observed in male and female rats, respectively. Haematological estimation revealed significant decrease in haemoglobin count in male rats while female rats showed significant increase in granulocyte count. All the serum clinical parameters were within the normal range and no gross histopathological changes were observed. No delayed effect was noted in satellite group. The results indicate that developed LCDP loaded NLCs are safe when administered orally in rats.

scholarly journals Toxicity Evaluation of a Traditional Polyherbal Unani Formulation Jawarish Shahi in Rats

2018 ◽  
Vol 7 (5) ◽  
pp. 412-418
Author(s):  
Mohd Urooj ◽  
◽  
Mohammad Ahmed Khan ◽  
G. Thejaswini ◽  
Munawwar Husain Kazmi ◽  
...  
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Clinical Signs ◽  
Female Rats ◽  
Control Group ◽  
Sprague Dawley ◽  
Male And Female ◽  
Salix Caprea ◽  
Male And Female Rats ◽  
Dose Levels

Jawarish Shahi (JS) is a compound polyherbal Unani pharmacopoeial formulation indicated for Khafqan (Palpitation), Nafkh-e-Shikam (Flatulence) and Waswas (Insanity; false perception and hallucinations). Jawarish Shahi contains herbs like Halela (Terminalia chebula), Amla (Emblica officinalis), Kishneez (Coriandrum sativum), Elaichi Khurd, (Elettaria cardamomum), and Bed Mushk (Salix caprea). The present study was carried out as per OECD 408 guidance to evaluate 90 days repeated oral dose toxicity in male and female Sprague Dawley rats. The study was performed at dose levels 1028 and 2000 mg/kg bw. No adverse effects were reported with respect to body weight, feed intake, behavior and clinical signs indicative of systemic toxicity. The expected growth pattern was observed in body weight and feed intake as compared to control group at both dose levels in male and female rats. There were few significant alterations with respect to hematology, and clinical biochemistry, however the results were within normal range thus considered toxicologically insignificant. The microscopic examination of different organ/tissue showed that no histopathological changes were observed. The findings of the study showed that No Observed Adverse Effect Level (NOAEL) for JS is greater than 2000 mg/kg body weight

scholarly journals Two-weeks repeated-dose oral toxicity study of Pediococcus acidilactici J9 in a mice model

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Mijung Lee ◽  
Jin-Young Chung ◽  
Ka Yeun Kim ◽  
Wooseok Im ◽  
Manho Kim
Keyword(s):  
Cancer Cells ◽  
Dose Group ◽  
Clinical Signs ◽  
Repeated Dose ◽  
Control Group ◽  
High Dose ◽  
Pediococcus Acidilactici ◽  
Male And Female ◽  
Female Mice ◽  
H Pylori

Abstract Background Helicobacter pylori (H. pylori) is an important pathogen that causes chronic gastritis and peptic ulcer, and is related to the development of gastric carcinoma. Several chemicals, including antibiotics, have been used to eradicate H.pylori. However, more studies are yet requred to accomplish a sufficient therapy. Pediococcus acidilactici (P. acidilactici) J9 were studied for inhibition of binding of H.pylori binding to human gastric cell lines. This study was performed in order to investigate the repeated-dose toxicity of P. acidilactici J9 in male and female mice. Results C57BL/6 male and female Mus musculus were divided into four groups (n = 10 in each group). P. acidilactici J9 was administered daily by oral injection of vehicle control at dosage levels to a low-dose group (500 mg/kg/day), middle-dose group (1000 mg/kg/day), and high-dose group (2000 mg/kg/day) for 2 weeks. After 14 days of exposure, the blood biochemistry and hematology were investigated, along with a histopathology exam. There were no bacterial-related deaths or abnormal clinical signs in either gender of mouse. The data was observed during the period in terms of body weight, food intake, and water consumption. Also, no alterations in organ weights upon administration of P. acidilactici J9 alone were observed. The adhesion and growth of H. pylori were inhibited by a 24 h treatment of H. pylori and P. acidilactici J9 on adenocarcinoma gastric (AGS) cells, which are gastric cancer cells. Compared to the control group (AGS cell and H. pylori), the number of H. pylori analyzed by FACS significantly (p < 0.01) decreased after incubation of AGS cell with P. acidilactici J9 for 24 h. Conclusions These results suggest that the oral application of P. acidilactici J9, up to a dosage level of 2000 mg/kg/day, causes no adverse effects in both male and female mice. P. acidilactici J9 inhibits the adhesion of H.pylori to AGS cancer cells. When used as probiotics, P. acidilactici J9 may help decrease the occurrence of gastritis and reduce the risk of H.pylori infection with promising safety issues.

scholarly journals Evaluation of Acute and Subacute Toxicities of Psidium guajava Methanolic Bark Extract: A Botanical with In Vitro Antiproliferative Potential

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Hermione T. Manekeng ◽  
Armelle T. Mbaveng ◽  
Samuel A. Ntyam Mendo ◽  
Armel-Joseph D. Agokeng ◽  
Victor Kuete
Keyword(s):  
Body Weight ◽  
Lethal Dose ◽  
Relative Weight ◽  
Psidium Guajava ◽  
Toxicity Study ◽  
Female Rats ◽  
Bark Extract ◽  
Control Group ◽  
High Dose ◽  
Subacute Toxicity

The methanol crude extract of the bark of Psidium guajava (guava) previously displayed interesting cytotoxic effects on a panel of human cancer cell lines. In the present work, we plan to determine the toxicological effects of this guava botanical in Wistar rats. Acute oral toxicity of the extract was carried out by administration of a single dose of 5000 mg/kg body weight to female rats in 14 days. Subacute toxicity was conducted by oral administration of the extract at daily doses of 250 mg/kg, 500 mg/kg, and 1000 mg/kg body weight, respectively, while rats in the control group received no extract. After 28 days of treatment, animals were sacrificed for hematological and biochemical studies. In the acute toxicity study, no mortality or signs of toxicity were recorded; hence, the median lethal dose (LD50) of the Psidium guajava bark extract is greater than 5000 mg/kg body weight. For the subacute toxicity study, significant variations in body weight, relative weight of organs, and biochemical parameters were observed in the animals treated at different doses of the plant extract compared to control animals. Histopathological analyses showed minor liver inflammation in females treated at the highest dose (1000 mg/kg). These results suggest that intake of a single high dose of the Psidium guajava bark extract is nontoxic, but repeat administration could exhibit mild organ toxicity.

scholarly journals ACUTE DERMAL TOXICITY STUDY OF ARECA CATECHU LINN. EXTRACT IN SPRAGUE-DAWLEY RATS

2016 ◽  
Vol 9 (9) ◽  
pp. 209
Author(s):  
Liza Meutia Sari ◽  
Frans D Suyatna ◽  
Gus Permana Subita ◽  
Elza Ibrahim Auerkar
Keyword(s):  
Body Weight ◽  
Aqueous Extract ◽  
Lethal Dose ◽  
Clinical Signs ◽  
Treated Group ◽  
Female Rats ◽  
Control Group ◽  
Sprague Dawley ◽  
Dermal Toxicity ◽  
Areca Catechu

ABSTRACTObjective: Areca catechu Linn. or biji pinang is one of the most widely used psychoactive substance with several hundred million users worldwide,predominantly in Southern Asia. However, details of the dermal toxicity of A. catechu L. are still undiscovered. The objective of this study is toinvestigate the in vivo acute dermal toxicity of aqueous extract of A. catechu L. at dose 15,000 mg/kg body weight in Sprague-Dawley rats.Methods: The acute dermal toxicity of A. catechu L. nut extract was investigated in rats, as per OECD Guidelines 402 for acute toxicity protocols. Thebody weight, possibility of death, general signs, and behavior activity parameters were measured for 14 days to ascertain the median lethal dose(LD50) of the extract. At the end of the study, all the animals in all the treated group were sacrificed.Results: The LD50 was found to be >15,000 mg/kg body weight. There was significant weight increase (p<0.05) in treated group when comparedto control group. No mortality was observed during whole 14 days study period. A single dose of 15,000 mg/kg of body weight did not producetreatment-related signs of toxicity in any of animal tested.Conclusion: A single dermal dose to A. catechu L. aqueous extract had no toxic effects on mortality, clinical signs, body weight changes, and grossfindings in female rats at a dose of 15,000 mg/kg of body weight. Subsequently, the concentrate can be employed for pharmaceuticals nutrient plants.Keywords: A. catechu L., Acute dermal toxicity, LD50.

scholarly journals Histological and hormonal studies of calabash chalk on ovarian function in adult female wistar rats

2017 ◽  
Vol 34 (03) ◽  
pp. 173-177
Author(s):  
A. Oyewopo ◽  
K. Obasi ◽  
K. Anumudu ◽  
E. Yawson
Keyword(s):  
Body Weight ◽  
Adult Female ◽  
Wistar Rats ◽  
Ovarian Function ◽  
Female Rats ◽  
Control Group ◽  
Treatment Groups ◽  
Female Wistar Rats ◽  
Group A ◽  
Group B

Abstract Introduction: Calabash chalk is a naturally occurring mineral, chiefly composed of fossilized sea shells. It is prepared from clay and mud mixed with other ingredients, including lead, arsenic, sand and wood ash. Clay consumption is correlated with pregnancy, and also to eliminate morning sickness in women. The aim of this study is to evaluate the effects of calabash chalk on the ovarian function in adult female Wistar rats. Methods: Eighteen (18) adult female Wistar rats. Group A served as the control group, group B received 40 mg/kg body weight of Non-salted calabash chalk while group C received 40 mg/kg body weight of Salted calabash chalk for 14 days. On day 15, the animals were sacrificed for histological and biochemical examination. Results: Results showed a significant (P< 0.05) reduction in follicle stimulating hormone (FSH) levels of the treatment groups when compared with the control group and an increase in luteinizing hormone (LH) levels of the treatment groups when compared with the control group. Histological examination of the ovaries showed severe deterioration of the ovarian follicles, necrosis and follicular atresia. Conclusion: Calabash chalk is toxic to ovarian function. These alterations have been shown to be the leading cause ofinfertility in female rats. Hence, proper monitoring, education, and regulation of the product is needed.

scholarly journals Safety Assessment of TGT Primaage using Wistar Rats through Oral Gavage Administration

2021 ◽  
Vol 10 (5) ◽  
pp. 298-315
Author(s):  
Kunjan Shah ◽  
◽  
Sudhakar Jadhav ◽  
Manish Patel ◽  
Jaydip Mistry ◽  
...  
Keyword(s):  
Adverse Effect ◽  
Body Weight ◽  
Wistar Rats ◽  
Clinical Pathology ◽  
Centella Asiatica ◽  
Control Group ◽  
High Dose ◽  
Delayed Effect ◽  
Adverse Effect Level ◽  
Effect Level

TGT Primaage is one of the astonishing extracts, obtained from a combination of Moringa oleifera and Centella asiatica. At present, there is no finding reported regardin g the repeated exposure of this extract. This study investigates the No Observed Adverse Effect Level (NOAEL) and effects of repeated-dose administration of Astragalin and Isoquercetin (components of interest) present in TGT Primaage on Wistar rats. Rats were divided into 3 treatment and a control group (10 rats/sex/group). To assess reversibility, persistence, or delayed effect, additional control and high dose groups were treated similarly and observed further without any treatment. TGT Primaage was administered orally, through gavage for 90 days, at 0, 250, 500, and 1000 mg/kg body weight/day. No mortality, morbidity, and clinical sign of toxicity was observed. Abnormality related to neurological and functional parameters was not seen. No change in body weight and food consumption was observed. Treatment did not lead to any adverse effect in clinical pathology parameters and organ weights. TGT Primaage did not alter morphological and histopathological characteristics of organs. From these results, it is evident that TGT Primaage appears to be safe and devoid of any toxicity. The No Observed Adverse Effect Level (NOAEL) of TGT Primaage for both sexes were found to be 1000 mg/kg body weight/day

Effect of Weight on Flour Okra Wistar Diabetes Rats

2021 ◽  
Vol 6 (3) ◽  
Author(s):  
Sukina B ◽  
Astati Astati ◽  
Ahmad Ahmad ◽  
Imanuddin Imanuddin
Keyword(s):  
Body Weight ◽  
Wistar Rats ◽  
Control Group ◽  
High Dose ◽  
Control Group Design ◽  
Test Analysis ◽  
Post Test ◽  
Study Population ◽  
Group 2 ◽  
One Way Anova

Diabetes mellitus is a disease that continues to increase in volume and is one of the main threats to the health of mankind. okra has phenols and flavonoids that have antioxidant effects and anti-diabetic effects are quercetin-3-O-ß-D-glucopyranosyl- (1 → 6) -SS-D-glucopyranoside and quercetin3-O-ß-D-4 '' - O-methyl-ß-D-glucopyranoside. This study aimed to determine the effect of flour weight okra against diabetic Wistar rats. This study was an experimental study using pre-post test design with control group design with simple random. The study population was a rat (Rattus norvegicus) Wistar male sex derived from animals that self-employed certified and provide health insurance in rats weighing 200 g-300 g (body weight adult). Random sampling of the population affordable. The results of this study indicate that the group average 1 BB increased by 1:56%, for the second group also increased by 1:40 BB% and in the control decreased by 1.49% BB. In group 1 and group 2 by treating starch suspension okra medium dose and high-dose, both an increase in weight by 3:00 grams. In the third group as the control group experienced a weight loss of 3 grams. The increase in mean body weight between the groups using the paired t test. Analysis to test different between groups by one-way ANOVA or one-way ANOVA. Results showed no effect of okra powder on body weight in diabetic Wistar rats between the control group and the treatment group. Keywords : Okra, weight, diabetes.

Two-Generation Oral (Diet) Reproductive Toxicity Study of Resorcinol Bis-Diphenylphosphate (Fyrolflex RDP) in Rats

2000 ◽  
Vol 19 (4) ◽  
pp. 243-255 ◽  
Author(s):  
R. Henrich ◽  
B. M. Ryan ◽  
R. Selby ◽  
S. Garthwaite ◽  
R. Morrissey ◽  
...  
Keyword(s):  
Body Weight ◽  
Sperm Count ◽  
Clinical Signs ◽  
Control Group ◽  
High Dose ◽  
Test Substance ◽  
Sprague Dawley ◽  
Mating Period ◽  
Flavor Aversion ◽  
Significant Difference

Fyrolflex resorcinol bis-diphenylphosphate (RDP) was evaluated in a two-generation reproductive study as part of a program to assess the overall toxicology of this flame retardant. RDP was administered to male and female Sprague-Dawley rats in the diet at concentrations of 1000, 10,000 or 20,000 ppm. The control group was given diet alone. Parental (P1) animals were treated for 10 weeks prior to mating, during the 2-week mating period, throughout gestation, and through lactation until sacrifice. The F1 generation (P1 offspring) was treated following a regimen similar to P1. The F2 generation was not treated. No significant difference in Utter survival was observed between the control and treated groups. Body weights were significantly decreased in P1 rats during the 1st week due to an initial flavor aversion of the test substance in the diet. Body weight, weight gains, and food consumption were decreased in the test substance-treated pups (F1) during lactationand after weaning. These changes were also attributed to a flavor aversion. Anogenital distance was similar in the control and high-dose groups, whereas vaginal opening and preputial separation were delayed in the 10,000 and 20,000 ppm groups, and were considered to be secondary to the reduction in F1 body weight. Neither parents nor offspring exhibited any test substance-related clinical signs of toxicity. Vaginal cytology and cyclicity and male reproductive functions (sperm count, motility, and morphology) were unaffected by treatment. Mating performance was similar in the treated groups relative to the control. No treatment-related lesions were noted in the reproductive organs. Increased liver weight and associated hepatic periportal hypertrophy were observed in the RDP-treated animals (P1 and F1). In conclusion, there were no adverse effects on reproductive performance or fertility parameters associated with RDP administration in the diet. Fyrolflex RDP administered for greater than 13 weeks and up to the entire life span (i.e., F1, from conception to euthanasia) resulted in increased liver weights with associated periportal hypertrophy. This change was considered an adaptive process associated with RDP metabolism in the liver.

Sign in / Sign up

Export Citation Format

Share Document