scholarly journals IMPACT OF RAPID EYE MOVEMENT SLEEP DEPRIVATION ON HYPOTHALAMIC-PITUITARYTESTICULAR AXIS IN WISTAR ALBINO RATS

2018 ◽  
Vol 11 (8) ◽  
pp. 412
Author(s):  
Dheepthi Jayamurali ◽  
Sathya Narayanan Govindarajulu
Keyword(s):  
Sexual Behavior ◽  
Sleep Deprivation ◽  
Eye Movement ◽  
Control Group ◽  
Albino Rats ◽  
Rapid Eye Movement ◽  
Group I ◽  
Custom Made ◽  
Wistar Albino Rats ◽  
The Impact

Objectives: The objectives of the study were to study the impact of rapid eye movement (REM) sleep deprivation (SD) on the hypothalamic-pituitary-testicular (HPT) axis in the Wistar albino rats.Methods: Adult male Wistar albino rats weighing about 200 g were segregated into Group I–IV of control, 48 h SD, 72 h SD, and 96 h SD, respectively, in a custom-made SD tank. After SD procedure, the sexual behavior of rats was assessed, after which blood was collected from the animals for the estimation of HPT and stress hormones and then the testicles were used for histological studies.Results: SD has increased (p<0.05) the mounting latency and intromission latency and decreased (p<0.05) the mounting frequency and intromission frequency compared with control group. A significant increase (p<0.05) in corticosterone, follicle stimulating hormone levels and a significant decrease (p<0.05) in gonadotropin-releasing hormone, luteinizing hormone and testosterone levels were observed in all the SD groups when compared with control group. SD-induced testis architecture displayed sperm retention, sperm reduction, and shape alteration when compared to the control group. Furthermore, apoptotic bodies were observed in the testis of 72 h and 96 h of sleep-deprived animals.Conclusion: Outcome of the project reveals that out of 48 h, 72 h, and 96 h of SD, 96 h of SD has a great impact on sexual behavior, HPT hormones, and testicular morphology.

scholarly journals Effect of Moderate Intake of Ethanol on Lipid Profile of Wistar-Albino Rats Fed High Fat Diet

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Kathiravan Vayanaperumal ◽  
Ravindran Rajan
Keyword(s):  
Lipid Profile ◽  
Blood Cholesterol ◽  
Ethanol Administration ◽  
Control Group ◽  
Albino Rats ◽  
High Fat ◽  
Group I ◽  
Significant Difference ◽  
Wistar Albino Rats ◽  
The Impact

Many evidences suggest that light to moderate alcohol drinking may provide some cardiovascular benefits. The present study examined the impact of how moderate ethanol consumption provides a protective effect against high blood cholesterol. Wistar-Albino rats were divided into a control group (I) and test groups (II, III, IV). The test groups (II, III, IV) were administered with a predefined dosage of 10%, 20% and 30% ethanol respectively following twenty days of high fat routine however, control animals were managed with normal saline for the next fifteen days. Significant difference in lipid profile parameters witnessed before and after ethanol administration between the control and test groups. Findings from the study suggests that 10% moderate ethanol is adequately least enough to reduce the risk of cardiovascular disease by improving the blood cholesterol in Wistar-Albino rats.

scholarly journals Effect of Sleep Deprivation on the Hippocampus of Adult and Senile Male Albino Rat: A Histological and Histochemical Study

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
S S I Elkilany ◽  
M M A Zakaria ◽  
R F Tash ◽  
A Y Mostafa ◽  
S W Abdelmalik ◽  
...  
Keyword(s):  
Sleep Deprivation ◽  
Dentate Gyrus ◽  
Therapeutic Strategy ◽  
Control Group ◽  
Albino Rats ◽  
Free Access ◽  
Waste Products ◽  
Glymphatic System ◽  
The Impact ◽  
The Brain

Abstract Background The importance of sleep and the impact of its deprivation on development of brain pathology became a recent subject of interest in medicine. The restorative effect of sleep on the brain and the harmful effects of insomnia have been recently revealed through the discovery of the glymphatic system and its association with sleep. Aim of work Specific objectives are: To detect histological and apoptotic changes in the neurons and dendrites of the cornu Amonis and the dentate gyrus in sleep deprived rats in comparison to rats with undisturbed sleep pattern (control). To detect deposition of neurotoxic metabolites in comu Amonis and dentate gyrus in sleep deprived rats in comparison to controls. Methods Twenty four adult male Albino rats were used in the present experiment. randomly categorized into four equal groups; Group A1 served as the control group, Group .A2 one day sleep deprivation, Group A3 three days sleep deprivation and Group A4 seven days sleep deprivation. They were deprived of sleep using grid over water method where the animals placed over a grid suspended above tank filled with water with free access to food (rat chew) and water. Hippocampai specimens were collected, processed for paraffin blocks and examined by light microscopy. Results there were neurodegenerative signs appeared from day one sleep deprivation, increased by day three and prevailed by day seven. It was confirmed by apoptotic changes detected by caspase 3 immunohistochemical staining. Furthermore, deposition of beta amyloid appeared in rats deprived of sleep and confirmed by congo red stain. Conclusion Adequate sleep is essential for integrity of the newly discovered glymphatic system responsible for clearance of the brain from waste products including the area most involved in learning and memory function; the hippocampus. Correction of SD could be a viable therapeutic strategy to prevent the onset or slow the progression of AD. Recommendations Further characterization of the glymphatic system in humans are required, it may lead to new therapies and methods of prevention of neurodegenerative diseases. Correction of SD could be a viable therapeutic strategy to prevent the onset or slow the progression of AD.

scholarly journals Тhe Impact Of Positive Acceleration (+Gz) on Antioxidant Capacity and Histopathological Alterations in Different Organs and Tissues in Rats

2017 ◽  
Vol 18 (3) ◽  
pp. 203-212
Author(s):  
Jelena Ristic ◽  
Tamara Nikolic ◽  
Jovana Jeremic ◽  
Isidora Stojic ◽  
Snezana Janicijevic-Hudomal ◽  
...  
Keyword(s):  
Gastric Mucosa ◽  
Antioxidant Capacity ◽  
Total Content ◽  
Control Group ◽  
Albino Rats ◽  
Histopathological Alterations ◽  
Antioxidant Enzyme System ◽  
Biochemical Systems ◽  
Wistar Albino Rats ◽  
The Impact

Abstract Since the early 1940s, a significant amount of research has been conducted to describe the impact of the high-G acceleration on the cardiovascular system. The objective of the present study was to examine the role of the antioxidant enzyme system under biodynamic stress in the liver, heart and gastric mucosa in response to high-magnitude +Gz exposure in a rat model. Twenty adult male Wistar albino rats (10 rats per group; 9-11 weeks old, 200-250 g b.w.) were divided into the following two groups: control and G (exposed to a biodynamic stress model under positive (+7 Gz) acceleration for 40 s). The influence of acute biodynamic stress on pro-oxidative parameters in the rat liver (xanthine oxidase (XOD), catalase (CAT), peroxidase (Px), glutathione peroxidase (GSH-Px), total content of glutathione (GSH), lipid peroxidation (LPx)) and on histopathological alterations in the liver, cardiac muscle and gastric mucosa was examined. Biodynamic stress resulting from positive (+7 Gz) acceleration resulted in a highly statistically signifi cant increase of CAT GSH-Px activity compared to the control group. The LPx levels were significantly decreased, but the GSH contents and the activities of other enzymes were not significantly changed. Significant microscopic changes in the liver, heart and gastric mucosa were observed in the G group. These results clearly indicate that +Gz acceleration alters biochemical systems. These alterations in cellular processes may be mediated by influences of hypoxia or ischaemia via changes in the antioxidant capacity.

scholarly journals Immune alterations after selective rapid eye movement or total sleep deprivation in healthy male volunteers

2010 ◽  
Vol 18 (1) ◽  
pp. 44-54 ◽  
Author(s):  
Francieli S Ruiz ◽  
Monica L Andersen ◽  
Raquel CS Martins ◽  
Adriano Zager ◽  
José D Lopes ◽  
...  
Keyword(s):  
T Cells ◽  
Sleep Deprivation ◽  
Eye Movement ◽  
White Blood Cells ◽  
Rapid Eye Movement ◽  
Immunological Parameters ◽  
Total Sleep Deprivation ◽  
Cytokine Levels ◽  
Immune Alterations ◽  
The Impact

We investigated the impact of two nights of total sleep deprivation (SD) or four nights of rapid eye movement (REM) SD on immunological parameters in healthy men. Thirty-two volunteers were randomly assigned to three protocols (control, total SD or REM SD). Both SD protocols were followed by three nights of sleep recovery. The control and REM SD groups had regular nights of sleep monitored by polysomnography. Circulating white blood cells (WBCs), T- (CD4/CD8) and B-lymphocytes, Ig classes, complement and cytokine levels were assessed daily. Two nights of total SD increased the numbers of leukocytes and neutrophils compared with baseline levels, and these levels returned to baseline after 24 h of sleep recovery. The CD4+ T-cells increased during the total SD period (one and two nights) and IgA levels decreased during the entire period of REM SD. These levels did not return to baseline after three nights of sleep recovery. Levels of monocytes, eosinophils, basophils and cytokines (IL-1β, IL-2, IL-4, IL-6, IL-10, TNF-α and IFN-γ) remained unchanged by both protocols of SD. Our findings suggest that both protocols affected the human immune profile, although in different parameters, and that CD4+ T-cells and IgA levels were not re-established after sleep recovery.

scholarly journals Pre-treatment effects against the diclofenac-induced toxicity by the aqueous leaf extract of Madhuca longifolia on female Wistar albino rats for 10 and 15 days

2020 ◽  
pp. 132-143
Author(s):  
Jerine Peter Simon ◽  
Sibi Karthik Saravanan ◽  
Jayashree Sathiyaranayanan ◽  
Radhakrishnan Vidya ◽  
Usha Kumari ◽  
...  
Keyword(s):  
Leaf Extract ◽  
Control Group ◽  
Albino Rats ◽  
Histopathological Analysis ◽  
Group I ◽  
Madhuca Longifolia ◽  
Aqueous Leaf Extract ◽  
Pre Treatment ◽  
Wistar Albino Rats ◽  
Enzyme Markers

Diclofenac is used to treat rheumatism disorders, which are associated with the damages of renal, gastric and hepatic organs. Diclofenac is a pharmaceutical drug that is known to induce toxicity on its overdosage and long-term usage. Madhuca longifolia is known to have antioxidant, anti-inflammatory and anti-ulcer activity. It is an evergreen tree that is reported to have many ethnomedicinal uses. The other properties of Madhuca longifolia include anti-diabetic, analgesic and anti-microbial activities. Our study aims to evaluate the pre-treatment activity against the diclofenac-induced toxicity by the Madhuca longifolia aqueous leaf extract in Wistar albino rats for 10 and 15 days. Rats were divided as Group-I: Normal control, Group-II: Diclofenac on the last two days, Group-III and group-IIIa: Diclofenac + Aqueous Leaf Extract of Madhuca longifolia, Group-IV and group-IVb: Diclofenac + Silymarin, Group -V and group-Va: Aqueous Madhuca longifolia leaf extract. After the sacrifice, the rats were studied for antioxidant assay, renal enzyme markers, liver enzyme markers, and histopathological analysis of the kidney, stomach, intestine, and liver. As a result, we could identify that Madhuca longifolia has reduced the toxic changes in rats caused by diclofenac.

scholarly journals Effect of Amomum subulatum seeds against cypermethrin induced haematological changes in wistar albino rats

2019 ◽  
Vol 8 (3) ◽  
pp. 604
Author(s):  
Goutham Sagarkatte Puttanna ◽  
Purushotham K. ◽  
Swarnalatha Nayak ◽  
Eesha B. Rao ◽  
Ravi Mundugaru
Keyword(s):  
Body Weight ◽  
Normal Control ◽  
Protective Role ◽  
Control Group ◽  
Albino Rats ◽  
Test Drug ◽  
Group Iii ◽  
Group I ◽  
Amomum Subulatum ◽  
Wistar Albino Rats

Background: Cypermethrin is a well know agricultural pesticide used in the developing countries. It is associated with significant toxic potential on human health. Hence the present study was aimed to evaluate the protective role of Amomum subulatum against cypermethrin induced haematalogical changes in Wistar albino rats.Methods: The albino rats were divided into five different groups of six rats each. Group I considered as normal control, group II cypermethrin control (25mg/kg body weight p.o.), group III only test drug and group IV and V administered with cypermethrin 25mg/kg body weight along test drug 1.08 and 2.16mg/kg body weight for 28 consecutive days. At the end of 28th day blood was withdrawn and total haematalogical parameters were estimated.Results: In the cypermethrin control there was significant reduction in the WBC, Platelet, MCHC and considerable reduction in the haemoglobulin concentration in comparison to normal control. The test drug administered at both dose levels was significantly reversed the cypermethrin induced changes in haematalogical parameters.Conclusions: Authors can conclude that the Amomum subulatum has potency to reverse the cypermethrin induced haematalogical changes.

scholarly journals Determination of Impact of Acute and Chronic Administration of Aqueous Root Extract of E. Tremula (Burburwa) on some Haematological parameters in Wistar Albino Rats

2021 ◽  
Vol 6 (3) ◽  
pp. 115-126
Author(s):  
H.M. Ahmed ◽  
A. Yakubu ◽  
S.R. Ismail ◽  
A.B. Ibrahim ◽  
A. Salahudden ◽  
...  
Keyword(s):  
Wistar Rats ◽  
Toxicity Study ◽  
Total Leukocyte Count ◽  
Control Group ◽  
Albino Rats ◽  
Root Extract ◽  
Group I ◽  
Leukocyte Counts ◽  
The Impact ◽  
Aqueous Root Extract

Eragrostis tremula (Burburwa) is an herbal plant native to tropical Africa, India and Myanmar. It is found in sandy soils and abandoned cultivations. It is used locally for sweeping, used as fodder for cattle and extensively being used in traditional medicine practice without assessing its safety. This study investigated the impact on blood cells (WBCs) on chronic/acute use of aqueous root extract of Eragrostis tremula among males/females wistar rats. The preliminary phytochemical screening revealed the presence of alkaloids, carbohydrate, phenols, saponins, tannins, anthraquinones, cardiac glycosides, flavonoids and diterpene. Lorke's method was used for oral acute toxicity study (LD50 determination). A total of 20 wistar rats were used, divided into four groups of five rats each. Group I was control and administered with distilled water, Group II, Group III and Group IV were respectively administered with 200 mg, 400 mg and 800 mg of the extract per kilogram body weight, for 21 days. The result of acute oral toxicity study was estimated to be greater than 5000 mg/kg. Total and differential (neutrophil, lymphocyte, and mixed cells) leukocyte counts were analysed. Eragrostis tremula aqueous root extract significantly (p<0.05) decreased lymphocyte and total leukocyte counts, but no significant changes (p>0.05) were observed in neutrophil and mixed cells count when the treated groups were compared with the control group. In conclusion, the findings of the present study have shown that, aqueous root extract of Eragrostis tremula has impact on lymphocyte and total leukocyte count in the wistar rats which is dependent on dose of the extract. The extract at high doses increases the lymphocyte and total leukocyte counts of the treated groups.

Effect of Mentha piperita (Labiatae) and Mentha spicata (Labiatae) on iron absorption in rats

2004 ◽  
Vol 20 (6-10) ◽  
pp. 119-122 ◽  
Author(s):  
Mehmet Akdogan ◽  
Fatih Gultekin ◽  
Mustafa Yontem
Keyword(s):  
Serum Iron ◽  
Binding Capacity ◽  
Mentha Piperita ◽  
Control Group ◽  
Albino Rats ◽  
Mentha Spicata ◽  
Group Iii ◽  
Group I ◽  
Wistar Albino Rats ◽  
Iron Binding Capacity

Aim: The effect of Mentha piperita (Labiatae) and Mentha spicata (Labiatae) teas, which contain different phenol compounds, on iron metabolism was studied. These teas grow in different areas of the city of Isparta, Turkey. These herbals were given to the rats in tea. Methods: Forty-eight male Wistar albino rats weighing 200-250 g were used for this study. The rats were divided into four groups of 12 animals: Group I received no herbal tea (control group); Group II received 20 g/L M. piperita tea; Group III received 20 g/L M. spicata tea; Group IV received 40 g/L M. spicata tea. Herbal teas were prepared daily and provided at all times to the rats over 30 days as drinking water. Results: M. piperita tea caused a decrease in serum iron and ferritin levels P <0.05), and caused an increase in unsaturated iron-binding capacity (UIBC) P <0.01). M. spicata tea caused no significant change in serum iron, ferritin levels and UIBC P <0.05). Conclusion: Both herbal teas inhibited Fe absorption. Inhibition caused by M. spicata tea was dose dependent. Therefore, when drinking these teas, their effect should be considered, especially for children and anemic patients.

scholarly journals Preventive Effects of Dietaryraisins on Steroid - Induced Bone Changes in Rats

2021 ◽  
Vol 17 (4) ◽  
pp. 809-817
Author(s):  
Al-Qtaitat Aiman ◽  
Al-Dalaien Said ◽  
Albtoosh Amal ◽  
Fardous Karawya
Keyword(s):  
Lumbar Vertebrae ◽  
Urinary Calcium ◽  
Control Group ◽  
Albino Rats ◽  
Calcium Excretion ◽  
Group Iii ◽  
Group I ◽  
Bone Changes ◽  
Induced Changes ◽  
The Impact

Glucocorticoids is the most common cause of secondary osteoporosis. Osteoporosis is widespread, costly and causes pain, deformity and disability. Several studies report health benefits of raisins. Raisins have a combination of compounds with antibacterial, antioxidant,anticarcinogenic and anti-inflammatory properties. The present study investigated the impact of Raisins onmethylprednisolone-induced osteoporosis in rats. Thirty male albino rats were randomly divided into three main groups, ten rats each. Group I control group; Group II, osteoporotic group, where osteoporosis was induced by injection of methylprednisolone; Group III, protected group, animals were given raisinsconcomitant daily with methylprednisolone. Bone biochemical markers were assisted, hydroxyproline, urinary calcium excretion, serum calcium, alkaline phosphatase and osteocalcin. In addition to histological findings in lumbar vertebrae of the rats.Our findings showed that raisin has a positive osteoprotective effects on methylprednisolone induced bone changes histologically and over the biomarkers examined.This study suggests that dietary raisins may moderate methylprednisolone bone induced changes.

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