scholarly journals Comparison of Nitric Oxide Changes in Hippocampal Tissue and Pain Sensation in Male Rats Parkinson's Model Following 6 Weeks of Continuous and Intermittent Training

Author(s):  
Saeid Moradi ◽  
Abdol Hamid Habibi ◽  
Mohammad Reza Tabande ◽  
Saeid Shakerian

Introduction: Despite the beneficial roles of nitric oxide, its excessive synthesis causes neurodegenerative diseases. Therefore, the aim of the present study was to compare the nitric oxide changes in the hippocampal tissue and the pain sensation of male Parkinson's rats after 6 weeks of continuous and interval training. Methods: In this experimental study, 24 Wistar male rats were used. Rats were treated with Parkinson's using reserpine, and then divided into four groups (n=6). Aerobic exercise was performed for 6 weeks and 5 sessions per week. The duration of training increased from the first to the sixth week, it increased from 15 minutes on the first day to 40 minutes in the sixth week. The interval group performed the specified duration of the exercise twice in the first week, four times in the second to fourth weeks, and six times in the fifth to sixth weeks. At the end of 6 weeks, pain sensation was measured using formalin test and then rats were sacrificed. The tissue of the hippocampus was separated, and nitric oxide was measured using the ELISA method and special kits. The results were analyzed using one-way analysis of variance and LSD follow-up. Results:The results showed that Parkinson's disease increased nitric oxide levels (p ≤0.05). Continuous and interval aerobic exercise reduced nitric oxide (p ≤0.05). There was no significant difference between the two training groups (p ≤0.68). In addition, Parkinson's control group showed a significant increase in pain compared to the control group (p ≤0.01). Two types of exercise reduced pain (p ≤0.05), but there was no significant difference between the two groups (p≤0.23). Conclusion:According to the findings of this study, continuous and periodic aerobic exercise reduced nitric oxide levels and pain in the rats of the Parkinson's model.

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Muhammed Emre Karaman ◽  
Cengiz Arslan ◽  
Mehmet Ferit Gürsu

Abstract Objectives The number of studies examining the circulating level change of betatrophin and cartonectin in metabolic syndrome applying different loads of exercise is limited. The purpose of the present study was to investigate how different loads of exercises regulate the betatrophin and cartonectin levels in metabolic syndrome induced rats. Methods A total of 24 Wistar-Albino male rats were used in the study. Rats were divided into four groups as follows; G1: control group (fed with standard diet and tap water), G2: metabolic syndrome group (without exercise application), G3: metabolic syndrome + aerobic exercise group (aerobic exercise applied), G4: metabolic syndrome + anaerobic exercise group (anaerobic exercise applied). Betatrophin and Cartonectin levels were determined by ELISA method in serum samples. Results There was a statistically significant difference in betatrophin levels between the groups and this differentiation was caused by G2 (p <0.05). Cartonectin levels were not significantly different between groups (p> 0.05). Conclusions It can be concluded that anaerobic exercises have more positive effects on glucose balance in metabolic syndrome than aerobic exercises, and by regulating betatrophin levels, anaerobic exercises indicate this effect.


Background and Aims: The sedentary lifestyle in individuals with metabolic syndrome is a main threatening risk for their health. This study aimed to investigate the effects of aerobic exercise with 65% of maximal oxygen consumption on heart rate variability and vascular nitric oxide levels in middle-aged males with metabolic syndrome. Materials and Methods: In total, 30 middle-aged men with metabolic syndrome were randomly divided into control and aerobic training groups. At the pretest and posttest, the values ​​of metabolic risk indices, heart rate variability, and nitric oxide were measured in both groups. The aerobic training group performed aerobic exercise for eight weeks at 65% of maximal oxygen consumption. The data were analyzed using the independent and paired t-tests. Results: According to the results, after comparing the values obtained from the posttest and pretest, there was a significant difference between the training and control groups regarding the fasting blood glucose, triglyceride, metabolic Z score, Standard deviation of NN intervals (SDNN), Square root of the mean squared differences of successive NN intervals (rMSSD), very-low-frequency (VLF), High frequency (HF), and vascular nitric oxide levels. Total cholesterol and low-density lipoprotein levels were significantly different in the aerobic training group, compared to those of the control group and LF as well as LF/HF at the pretest (P=0.01). However, despite slight changes in high lipoprotein and blood pressure levels, there was no significant difference in the aerobic training group, compared to the control group and pre-test. Conclusion: Regular moderate-intensity aerobic exercise can be used as an appropriate exercise protocol to improve cardiovascular function for males with metabolic syndrome.


Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1569
Author(s):  
Tomislav Šušnjar ◽  
Ivana Kuzmić Prusac ◽  
Ivan Švagelj ◽  
Anđela Jurišić ◽  
Tomislav Šušnjar ◽  
...  

Background: The aim of this study was to compare consequences in single and triple testicular biopsy by biopty gun in pubertal rats using histological and immunohistochemical analysis. Methods: Thirty-two Sprague-Dawley male rats were used as the experimental model. The rats were randomly divided into three study groups. The rats from the first group (n = 12) received a single-biopsy of upper pole of the left testis, while the rats from the second group (n = 10) received triple-biopsy of upper and lower poles and lateral surface of left testis. The third group (n = 10) was a control group. On the eightieth day after the biopsy in all rats bilateral orchiectomy and funiculectomy were performed to obtain testicular tissue and sperm for analysis. The consequences of the puncture were observed by pathohistology, immunohistochemistry and semen analysis. Results: The results of the study showed lower percentage of sperm count (14.5 mill/mL vs. 16 mill/mL, p = 0.130), sperm motility (24.6% vs. 32.7%, p > 0.05), abnormal sperm (30% vs. 27%, p > 0.05), atrophic tubules (21% vs. 6%, p < 0.001), volume (1.7 mL vs. 2.28 mL, p < 0.01) and apoptotic index (1.56 vs. 1.19, p = 0.650) in the testes with a triple-biopsy compared to the testes with a single-biopsy. Semen analysis showed a borderline significant difference between the group with triple-biopsy where sperm count was lower than it in the control group (14.5 mill/mL vs. 17.5 mill/mL, p = 0.05). A single-biopsy has little effect on the testis, especially on overall fertility. A triple-biopsy showed higher degree of the testicular damage but without a significant impact on overall fertility. Semen analysis showed that single- and triple-biopsies did not have a significant effect on sperm count, motility and morphology. Conclusion: Biopty gun procedure is a cheap, simple and reliable method for testicular biopsy in rats without a significant effect on sperm count, motility and morphology.


2021 ◽  
Vol 42 (Supplement_1) ◽  
pp. S193-S193
Author(s):  
Emre Karakaya ◽  
Aydincan Akdur ◽  
H Ebru ◽  
Ayvazoglu Soy ◽  
Alev Ok Atilgan ◽  
...  

Abstract Introduction Burn is one of the most severe traumas that causes coagulative destruction of the skin. The use of various products that accelerate wound healing in patients with burn may affect the patient’s survival and reduce the complications that may be seen. In the present study we aimed effects of subcutaneous ozone injection on second degree burn wound. Methods A total of 72 Sprague-Dawley male rats included in the study were divided randomly into three groups (control group (CG), silver sulfadiazine group (SG), ozone group (OG)) and each group was divided randomly two subgroups (as sacrificed on d7 and on d14).A deep second degree scald burns were created on the lower back. In CG subcutaneous 0.9% serum saline was injected daily into the burn area. In SG, burns were dressed with silver sulfadiazine daily and in OG subcutaneous ozone was injected daily into the burn area. Tissue hydroxyproline level measurement and histopathological evaluation were done. Results When the groups were compared in terms of weight change, no significant difference was found on the 7th and 14th days. In the evaluation made in terms of tissue hydroxyproline, tissue hydroxyproline level in OG was found to be significantly higher on both the 7th and 14th days (p &lt; 0.001). In histopathological evaluations, it was determined that wound healing in OG was significantly higher than in the other groups. Conclusions According to the results, subcutaneous ozone therapy is more effective than silver sulphadiazine in the healing process of second-degree burn wounds and it can be safely used in the treatment of burn wounds.


Author(s):  
I. S. Esua ◽  
U. U. Uno ◽  
U. B. Ekaluo

Background and Aim: Tramadol is a potent analgesic effective in the treatment of mild to severe pains. However, the use of the drug can pose a threat to other organs and systems. Therefore, this study evaluated the effect of graded doses of tramadol on sperm profile of male albino rats. Materials and Methods: Eighteen male rats were divided into three groups (A, B and C) using completely randomized design (CRD) with six rats in each group. Rats in group A served as the control group and were given just food and water while groups B and C were given tramadol at 50 and 100 mg/kg body weight (BW) respectively, daily for the period of 65 days. The treatment was administered via oral gavage and at the end of the treatments, the rats were sacrificed. Immediately after sacrifice, a puncture was made in the epididymis with a sterile pin and examined for semen pH. The epididymes were processed for epididymal sperm motility, viability, count and sperm head abnormality. Results: There was no significant difference in the weight of testes and semen pH. Sperm viability, sperm motility, sperm count and weight of epididymes significantly reduced (p<0.05) in tramadol treated animals when compared with the control. Results also indicated statistically significant (p<0.05) increase in sperm head abnormalities in rats treated with tramadol when compared with the control. Conclusion: The results obtained from this study reveal that tramadol has negative effects on weight of epididymes, sperm count, sperm viability, sperm motility and sperm head abnormalities in male albino rat as mammalian models in a dose dependent manner.


2017 ◽  
Vol 2 (4) ◽  
pp. 172-177
Author(s):  
Saeid Tanoorsaz ◽  
Naser Behpoor ◽  
Vahid Tadibi

Introduction: Cardiac apoptosis is one of the most important cardiovascular complications of diabetes. We aimed to investigate the changes of caspase-8, Bcl-2, and N-terminal pro B-type natriuretic peptide (NT-proBNP) in cardiac tissue after 4 weeks of aerobic exercise in male rats with diabetes. Methods: Forty adult male rats were randomly allocated to healthy control, diabetes, control + exercise and exercise + diabetes groups. Diabetes was induced by intraperitoneal injection of streptozotocin (STZ) solution (55 mg/kg). Two weeks after injection, fasting blood glucose levels were measured. After the induction of diabetes, the exercise program was performed for 4 weeks (5 sessions per week) at a speed of 15 to 18 m/min for 25 to 44 minutes. Forty-eight hours after the last training session, the subjects were anesthetized and the heart muscle was removed. Caspase-8, Bcl-2 and NT-proBNP levels were measured by ELISA method. Results: The induction of diabetes in the control group resulted in a significant increase in caspase-8, and NT-proBNP levels while an insignificant increase was observed for Bcl-2 levels (P<0.05). In non-diabetic groups, exercise caused no changes in caspase-8, NT-proBNP and Bcl-2 (P<0.05). Exercise in diabetic groups significantly decreased NT-proBNP while no changes were observed in caspase-8 and Bcl-2 (P<0.05). Conclusion: Our findings showed that diabetes increases the pro-apoptotic and anti-apoptotic agent. In addition, 4 weeks of regular aerobic exercises can be used as a non-pharmacological strategy to reduce the complications of apoptosis in diabetic cardiomyocytes.


2020 ◽  
Vol 26 (1) ◽  
pp. 54-67
Author(s):  
Mohammad Mehdi Padam ◽  
◽  
Ameneh Khoshvaghti ◽  

Aims: Damage to liver tissue and its dysfunction is very important and if left untreated, it can cause serious problems and even death. In this study, we aimed to investigate the effects of the hydroalcoholic extracts of Linum usitatissimum and Rosa damascena on liver enzymes, total protein, bilirubin, albumin, and serum glucose levels. Materials and Methods: This is a non-randomized clinical trial conducted on 42 male rats divided into 6 groups; control group (group 1) received only sufficient water and food, groups 1 and 2 received 300 and 500 mg/ kgB.W Linum usitatissimum extract, groups 3 and 4 received 500 and 1000 mg/ kgB.W Rosa damascena, and group 6 received 100 mg/ kgB.W Linum usitatissimum plus 250 mg/ kgB.W Rosa damascena extracts intraperitoneally for 28 days. After the last injection, the rats were weighed and their blood samples were collected. The study parameters were measured using a colorimetric method by a spectrophotometer, and then were analyzed using ANOVA and Tukey’s test in SPSS V. 25 at a significance level of P<0.05. Findings: There was no significant difference between alanine aminotransferase, alkaline phosphatase, total and direct bilirubin levels in the control group in comparison with other groups (P>0.05). In the groups received Rosa damascena extract, there was a significant difference between total protein and albumin levels compared to the control group (P<0.05). Moreover, there was a significant difference between serum glucose and aspartate aminotransferase in the control group compared to other groups (P<0.05). Conclusion: Linum usitatissimum and Rosa damascena have no negative effect on the liver function. The probability of diarrhea occurrence and the possible effects on the total protein and serum albumin after using Rosa damascena, and the effects of different doses of Linum usitatissimum on the glucose levels should be taken into account.


2019 ◽  
Vol 8 (2) ◽  
pp. 120-125 ◽  
Author(s):  
Zahra Dehbani ◽  
Alireza Komaki ◽  
Farshid Etaee ◽  
Siamak Shahidi ◽  
Masoumeh Taheri ◽  
...  

Introduction: Melissa officinalis (MO) or lemon balm is traditionally used as a sedative and anti-spasm herbal medicine. There is also evidence that this plant has effects on learning and memory. This study examined the effect of a hydro-alcoholic extract of MO on passive avoidance learning (PAL) and memory in male rats. Methods: A total of 40 adult male Wistar rats were randomly distributed into four groups (200 to 220 g; n = 10 per group); three dose groups (50, 100, and 200 mg/kg of the hydro-alcoholic extract of MO) and vehicle control (saline) group. Saline or doses of extract were administered daily for 14 days by oral gavage. The rats were trained to enter the shuttle box to record their behavior in the PAL task. A retrieval test was performed 24 hours following training. Results: A significant difference was seen in performance among MO groups and the control. MO administered animals had a decreased number of acquisition trials (P < 0.05). In the retention task, MO administered animals had an increased step-through latency (SLT) (P < 0.01), and a decreased latency in the dark compartment (P < 0.001) compared to the control group. Conclusion: The results of the study show that MO can improve learning and memory in the PAL task. Further investigation is needed to enhance our understanding of the neurobiological mechanisms of the MO extract and its effects on learning and memory.


2020 ◽  
Vol 29 (3) ◽  
pp. 245-9
Author(s):  
Rostika Flora ◽  
Mohammad Zulkarnain ◽  
Sukirno

BACKGROUND Physical exercise is strongly associated with the release of β-endorphin. It is assumed that the type and intensity of physical exercise contributes to the release of β-endorphin. This study aimed to compare levels of β-endorphin in brain tissue in response to aerobic and anaerobic physical exercise. METHODS This study was an experimental laboratory study using 35 male Wistar rats divided into one control group and two physical exercise treatment groups: aerobic and anaerobic. Physical exercise was conducted on an animal treadmill running at aspeed of 20 m/min for 30 min of aerobic exercise and 35 m/min with 1-min intervals every 5 min for 20 min for anaerobic exercises. Each aerobic and anaerobic exercise group was furtherly classified into three subgroups (1×/week, 3×/week, and 7×/week). β-endorphin levels were determined using enzyme-linked immunosorbent assay. The data were analyzed using independent t-test and one-way analysis of variance. RESULTS The highest mean of β-endorphin level was found in the weekly exercise (54.45 [1.41] pg/ml) of aerobic exercise group and daily exercise (70.50 [11.67] pg/ml) of anaerobic exercise group. Mean of β-endorphin level in control group was 33.34 (3.54) pg/ml. A significant increased of β-endorphin mean level (p<0.001) was found in all aerobic and anaerobic exercise groups except the aerobic exercise 7×/week group(37.37 [6.30] pg/ml) compared to control. CONCLUSIONS Both aerobic and anaerobic physical exercise conducted for 6 weeks could increase the level of β-endorphin in brain tissue.


2021 ◽  
Vol 7 (1) ◽  
pp. 42-50
Author(s):  
Zahra Nazari Barchestani ◽  
◽  
Maryam Rafieirad ◽  

Background: Ischemia causes severe neuronal damage and induces oxidative stress, memory impairment, and reduces pain threshold. Herniarin is a powerful antioxidant. Objectives: This study aimed to evaluate the effect of herniarin on memory, pain, and oxidative stress in an ischemia model in male rats. Materials & Methods: In this study, 50 male rats were divided into 5 groups of control, sham, ischemic, and two other ischemic groups, which received herniarin at doses of 150 and 300 mg/kg by gavage for 14 days. Behavioral tests were performed by shuttle box, and Y-maze and pain tests were performed by Tail-Flick test. Then, the rats’ brains were extracted to evaluate lipid peroxidation and measure the levels of thiol and Glutathione Peroxidase (GPX) in the hippocampus and striatum tissues. The results were expressed as Mean±SEM and then analyzed using suitable statistical methods of ANOVA and least significant difference post-hoc test in SPSS V. 20. Results: Herniarin significantly increased the avoidance memory, spatial memory, and pain thresholds of ischemic rats at different concentrations (P<0.001). Besides, the amount of malondialdehyde (MDA) and thiol in the ischemic group increased significantly in comparison to the control group (P<0.001). Also, in the ischemic group, GPX (P<0.001) significantly decreased. Decreased MDA (P<0.001) and thiol (P<0.001) and increased GPX levels were observed with herniarin administration (P<0.01). Conclusion: According to this study’s results, herniarin can remove free radicals and oxidant substances from the brain. Thus, it improves memory and pain thresholds in the brain hypoperfusion ischemia model.


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