Effect of swimming on oligodendrocytic cells and myelin tissue in corpus callosum of rat model of MS induced by Cuprizone

2021 ◽  
Vol 42 (6) ◽  
pp. 737-744
Author(s):  
Ebrahim Bagheri ◽  
Sayed Mohammad Marandi ◽  
Nazem Ghasemi ◽  
Zeinab Rezaee
Keyword(s):  
Physical Activity ◽  
Multiple Sclerosis ◽  
Corpus Callosum ◽  
Wistar Rats ◽  
Control Groups ◽  
Male Wistar Rats ◽  
Blue Solution ◽  
The Mean ◽  
Density Image ◽  
One Way Anova

Background: Multiple Sclerosis is a myelin destroyer disease, which physical activity can be effective in improving it. Therefore, in the present study, the effect of swimming on oligodendrocytic cells and myelin tissue in rat brain of the Cuprizone model of MS disease is investigated. Methods: In this study, 21 male Wistar rats were randomly divided into Control groups, Cuprizone and Swim + Cuprizone. For the induction of MS, Cuprizone 0.6% were gavaged for one month. The group of Swim + Cuprizone swam at the same time with gavage. The training program included 4 weeks of swimming for 5 sessions per week and 30 minutes. Immunohistochemistry technique was used to determine the percentage of immature and mature oligodendrocytes and Luxol fast blue solution for evaluation of myelin density. Image j software and One-way ANOVA was used to analyze the findings. Results: The mean percentage of immature and mature oligodendrocytes and myelin density in the Swim+Cuprizone group was significantly higher than that of the Cuprizone group (p≤0.05). Conclusion: Swimming decreases destruction of the oligodendrocytes and myelin cells due to Cuprizone.

scholarly journals Role of Type and Volume of Recreational Physical Activity on Heart Rate Variability in Men

2020 ◽  
Vol 17 (8) ◽  
pp. 2719 ◽  
Author(s):  
Shaea Alkahtani ◽  
Andrew A. Flatt ◽  
Jawad Kanas ◽  
Abdulaziz Aldyel ◽  
Syed Shahid Habib
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Time Domain ◽  
Active Group ◽  
Control Groups ◽  
Rr Intervals ◽  
The Mean ◽  
And Control ◽  
Arab Men ◽  
Frequency Power

The aim of this study was to investigate the effect of recreational aerobic physical activity (PA) type and volume on heart rate variability (HRV) in Arab men. This was a retrospective, cross-sectional study, and included men (n = 75, age = 37.6 ± 7.1 years, body mass index (BMI) = 26.7 ± 3.1 kg/m2) who were members of a walking group, cycling group, or were inactive controls. Monthly distances from the past three months were obtained from walking and cycling groups, and the volume of PA was classified into three subgroups (high, moderate, low). HRV was measured using a computerized electrocardiographic data acquisition device. R–R interval recordings were performed while participants rested in a motionless supine position. RR intervals were recorded for 15 minutes, and a five-minute segment with minimal ectopic beats and artifacts was selected for HRV analysis. Time-domain parameters included the mean R–R interval, standard deviation of the mean R–R interval (SDNN), and root-mean-squared difference of successive RR intervals (RMSSD). The frequency-domain parameters included high-frequency power (HF), low-frequency power (LF), and LF to HF ratio (LF/HF). Results showed that there were no significant differences between walking, cycling, and control groups for all HRV parameters. Time-domain analyses based on PA volume showed that age-adjusted SDNN for the high-active group was greater than the low-active group (P = 0.03), and RMSSD for the moderate-active group was greater than the control group (P = 0.009). For the frequency domain, LF for the high-active group was greater than the low-active and control groups (P = 0.006), and HF for the moderate-active group was greater than the low-active group (P = 0.04). These data indicate that walking >150 km per month, or cycling >100 km per month at a speed >20 km/h may be necessary to derive cardiac autonomic benefits from PA among Arab men.

scholarly journals Sudden decrease in physical activity evokes adipocyte hyperplasia in 70- to 77-day-old rats but not 49- to 56-day-old rats

2013 ◽  
Vol 305 (12) ◽  
pp. R1465-R1478 ◽  
Author(s):  
Joseph M. Company ◽  
Michael D. Roberts ◽  
Ryan G. Toedebusch ◽  
Clayton L. Cruthirds ◽  
Frank W. Booth
Keyword(s):  
Physical Activity ◽  
Adipose Tissue ◽  
Wistar Rats ◽  
Percent Body Fat ◽  
Voluntary Running ◽  
Male Wistar Rats ◽  
Old Rats ◽  
Sudden Decrease ◽  
Tissue Characteristics ◽  
Adipocyte Hyperplasia

The cessation of physical activity in rodents and humans initiates obesogenic mechanisms. The overall purpose of the current study was to determine how the cessation of daily physical activity in rats at 49–56 days of age and at 70–77 days of age via wheel lock (WL) affects adipose tissue characteristics. Male Wistar rats began voluntary running at 28 days old and were either killed at 49–56 days old or at 70–77 days old. Two cohorts of rats always had wheel access (RUN), a second two cohorts of rats had wheel access restricted during the last 7 days (7d-WL), and a third two cohorts of rats did not have access to a voluntary running wheel after the first 6 days of (SED). We observed more robust changes with WL in the 70- to 77-day-old rats. Compared with RUN rats, 7d-WL rats exhibited greater rates of gain in fat mass and percent body fat, increased adipocyte number, higher percentage of small adipocytes, and greater cyclin A1 mRNA in epididymal and perirenal adipose tissue. In contrast, 49- to 56-day-old rats had no change in most of the same characteristics. There was no increase in inflammatory mRNA expression in either cohort with WL. These findings suggest that adipose tissue in 70- to 77-day-old rats is more protected from WL than 49- to 56-day-old rats and responds by expansion via hyperplasia.

scholarly journals The effect of heat treatment and particle size of bran on mineral absorption in rats

1982 ◽  
Vol 48 (3) ◽  
pp. 467-475 ◽  
Author(s):  
Andrea Caprez ◽  
Susan J. Fairweather-Tait
Keyword(s):  
Heat Treatment ◽  
Particle Size ◽  
Isotope Dilution ◽  
Wistar Rats ◽  
Specific Radioactivity ◽  
Young Male ◽  
Breakfast Cereal ◽  
Synthetic Diet ◽  
Male Wistar Rats ◽  
The Mean

1. The effect of heat treatment of bran on true zinc absorption was measured using an isotope-dilution technique. A bran-based breakfast cereal (heated to 204° for 40 min during manufacture) was incorporated into a semi-synthetic diet at a level of 180 g/kg, A parallel diet was formulated containing an identical weight of untreated bran from the same source plus other ingredients used to make the cereal.2. Young male Wistar rats (mean weight 80 g) were injected intramuscularly with 65Zn to label body Zn. They were given the heat-treated- and untreated-bran diets for 9 d. During the last 6 d of this period Zn intakes and faecal and urinary Zn were measured in order to calculate apparent Zn retention. True Zn retention was measured by taking into account losses of Zn of endogenous origin (labelled with 65Zn), by measuring faecal and urinary 65Zn taking the mean specific radioactivity of Zn in kidneys and upper small intestine to represent specific radioactivity of endogenous origin.3. Heat treatment of bran removed approximately one-third of the phytate, but this was not enough to improve Zn absorption from the diet. True Zn retention measured by isotope dilution was significantly higher (P < 0.02) than apparent Zn retention measured bv the conventional balance technique.4. The hypothesis that a reduction in particle size of bran would improve mineral availability was tested by feeding coarse and milled bran (100 g/kg diet) in a semi-synthetic diet to rats and measuring true Fe and apparent Zn absorptions. The importance of phytate was also investigated by feedino a diet containing dephytinized bran.5. Male Wistar rats (mean weight 172 g) were given diets containing coarse, milled or dephytinized bran for 9 d. Fe and Zn intakes were measured and faeces and urine collected for Fe and Zn analysis.6. The mean (±SE) particle size of the bran was reduced on milling from 3.5 (± 1.8) to 0.2–0.5 mm. There were no differences in the fraction of Fe retained between the three groups. Particle size had a small effect on Zn retention which was marginally higher in rats on the milled-bran diet (0.126 (± 0.023)) than in those on the coarse-bran diet (0.087 (± 0.012)). Total removal of phytate had a greater effect and apparent Zn retention from the dephytinized-bran diet was significantly higher (0.182 (±0.027), P < 0.01).

scholarly journals A new experimental model of cigarette smoke-induced emphysema in Wistar rats

2014 ◽  
Vol 40 (1) ◽  
pp. 46-54 ◽  
Author(s):  
Rodrigo de las Heras Kozma ◽  
Edson Marcelino Alves ◽  
Valter Abraao Barbosa-de-Oliveira ◽  
Fernanda Degobbi Tenorio Quirino dos Santos Lopes ◽  
Renan Cenize Guardia ◽  
...  
Keyword(s):  
Lung Function ◽  
Cigarette Smoke ◽  
Murine Model ◽  
Wistar Rats ◽  
Control Group ◽  
Therapeutic Approaches ◽  
Viable Option ◽  
Male Wistar Rats ◽  
Mean Linear Intercept ◽  
The Mean

OBJECTIVE: To describe a new murine model of cigarette smoke-induced emphysema. METHODS: Twenty-four male Wistar rats were divided into two groups: the cigarette smoke group, comprising 12 rats exposed to smoke from 12 commercial filter cigarettes three times a day (a total of 36 cigarettes per day) every day for 30 weeks; and the control group, comprising 12 rats exposed to room air three times a day every day for 30 weeks. Lung function was assessed by mechanical ventilation, and emphysema was morphometrically assessed by measurement of the mean linear intercept (Lm). RESULTS: The mean weight gain was significantly (approximately ten times) lower in the cigarette smoke group than in the control group. The Lm was 25.0% higher in the cigarette smoke group. There was a trend toward worsening of lung function parameters in the cigarette smoke group. CONCLUSIONS: The new murine model of cigarette smoke-induced emphysema and the methodology employed in the present study are effective and reproducible, representing a promising and economically viable option for use in studies investigating the pathophysiology of and therapeutic approaches to COPD.

Evaluation of hepatic glycogen content, some haematological and biochemical parameters of alloxan-induced diabetic rats treated with combinations of glibenclamide and G. latifolium extract

2017 ◽  
Vol 14 (4) ◽  
Author(s):  
Patrick E. Aba
Keyword(s):  
Glycogen Content ◽  
Diabetic Rats ◽  
Hepatic Glycogen ◽  
Control Groups ◽  
Group 4 ◽  
Male Wistar Rats ◽  
The Mean ◽  
Group 2 ◽  
Alloxan Monohydrate ◽  
Group 1

AbstractBackgroundDiabetes is associated with both biochemical and haematological complications. Combination therapy has been advocated to mitigate some of these complications.AimThis study was designed to investigate the effects of glibenclamide andMethodsThirty male Wistar rats were assigned into five groups of six rats each. Groups 2–5 rats received intraperitoneally, 160 mg/kg of alloxan monohydrate while group 1 rats served as normal control. Groups 2–5 rats were respectively treated with 10 mL/kg distilled water (DW), 2 mg/kg glibenclamide, 200 mg/kg GL and 2 mg/kg glibenclamide and 200 mg/kg GL, while group 1 rats received 10 mL/kg DW. All treatments wereResultsCreatinine and BUN values of groups 3 and 4 rats were comparable to that of group 1 but were significantly (p<0.05) lower when compared with those of groups 2 and 5. There were significant (p<0.05) increases in the mean hepatic glycogen content, RBC, PCV, and Hb of group 4 rats when compared to those of group 2.ConclusionsIt was concluded that a combination of glibenclamide and

scholarly journals Uji Aktivitas Antikolesterol Ekstrak Etanol Daun Patikan Emas (Euphorbia prunifolia Jacq.) pada Tikus Wistar yang Hiperkolesterolemia

Jurnal MIPA ◽  
2015 ◽  
Vol 4 (1) ◽  
pp. 29
Author(s):  
Nadhilah Bachmid
Keyword(s):  
Wistar Rats ◽  
Plasma Cholesterol ◽  
Ethanol Extract ◽  
Amperometric Biosensor ◽  
Measuring Instrument ◽  
Cholesterol Levels ◽  
Male Wistar Rats ◽  
One Way Anova

Telah dilakukan penelitian untuk menentukan aktivitas antikolesterol ekstrak etanol daun patikan emas pada tikus wistar yang hiperkolesterolemia. Tikus wistar jantan yang berusia 2-3 bulan sebanyak 20 ekor dibagi menjadi 4 kelompok perlakuan secara acak. Kelompok K diberi pakan beras jagung, sedangkan kelompok K-, P1, dan P2 diberi pakan aterogenik. Kelompok P1 dan P2 diberi ekstrak dengan dosis 10 dan 30 mg/kgBB. Pemeriksaan kadar kolesterol plasma ditentukan dengan metode biosensor amperometrik menggunakan alat ukur NESCO GCU dengan bantuan strip yang telah ditetesi darah. Darah tikus diperoleh dari bagian ekor yang telah dilukai. Data yang diperoleh dianalisis menggunakan ANOVA satu arah (p<0,05). Hasil penelitian menunjukkan ekstrak etanol daun patikan emas dengan dosis 10 dan 30 mg/kgBB memiliki aktivitas antikolesterol dengan penurunan kadar kolesterol sebesar 12 dan 71% dibandingkan dengan kelompok K-.Research had been carried out to determine anticholesterol activity of ethanol extract gold patikan leaves. 20 Male wistar rats aged 2-3 months were divided into 4 groups randomly. K group with corn rice fed, while the K-, P1 and P2 with atherogenic fed. Group P1 and P2 are given with extract with doses 10 and 30 mg/kgBW. Examination of plasma cholesterol levels were determined by amperometric biosensor methods using a measuring instrument NESCO GCU with strip that had spilled blood. Blood was obtained from rats tail that had been injured. Data were analyzed using one-way ANOVA (p<0,05). The results showed that the ethanol extract of gold patikan leaves with doses 10 and 30 mg/kgBW decrease the anticholesterol activity with cholesterol levels by 12 and 71%, compared with K- group.

scholarly journals The Effectiveness Fig Leaves (FICUS CARICA L) Steeping Water Towards SGOT SGPT Serum on Male Wistar Rats in Critical Hepatitis Model

2019 ◽  
Vol 7 (1) ◽  
pp. 826-835
Author(s):  
Yosi Julianti ◽  
Untung Sudharmono
Keyword(s):  
Treatment Group ◽  
Wistar Rats ◽  
Ficus Carica ◽  
Negative Group ◽  
Positive Group ◽  
Treatment Groups ◽  
Significant Difference ◽  
Male Wistar Rats ◽  
Food And Drink ◽  
One Way Anova

Critical Hepatitisis is the inflammation of the liver that is caused by viruses, alchol and drugs which are characterized by the increasing values of SGOT SGPT. The purpose of this study is to determine the effectiveness of fig leaves (Ficuss carica L) steeping water towards the decrease of SGOT SGPT serum on male wistar rats in critical hepatitis model. The object of this study is 30 male wistar rats with the age of 2-3 months and weight 180-200 grams and randomly divide into 3 groups, which are the negative group that is only by giving an usual food and drink, the positive group and the treatment groups are given paracetamol 120mg/ oral for 7 days. The treatment group is given 0.65 gram/ day of fig leaves steeping water for 7 days. One way ANOVA of SPSS version 24 is used to analyze this research. The result of the study shows that there is a significant difference in SGOT serum level between the treatment group, positive group and negative group (p<0,05). And there is a significant difference  in SGPT level between the treatment group and the positive group (p<0,05). The conclusion of this study is tin leaves (Ficus carica L) steeping water has an effect towards the decrease of SGOT SGPT in male Wistar rats in critical hepatitis model.

scholarly journals Burn Wound Healing Activity of Prunella Grandiflora L. Exctract

Biomeditsina ◽  
2021 ◽  
Vol 17 (4) ◽  
pp. 50-56
Author(s):  
E. V. Bolotnik ◽  
L. I. Alekseeva ◽  
L. P. Larionov
Keyword(s):  
Wound Healing ◽  
Wistar Rats ◽  
Dosage Forms ◽  
Control Groups ◽  
Burn Wound ◽  
Dry Extract ◽  
Burn Wound Healing ◽  
Male Wistar Rats ◽  
And Control ◽  
Wound Healing Activity

The qualitative composition of phenolic acids and burn wound healing activity of Prunella grandiflora L. extract were studied. The content of rosmarinic (621±5 mg/g), coffeic (11.2±0.2 mg/g), syringic (46.5±1.4 mg/g), n-coumaric (25.8±0.5 mg/g), and ferulic (42.7±2.9 mg/g) acids in dry extracts of P. grandiflora was determined by HPLC. Three new burn-healing agents of different composition containing 5% of the dry extract of Prunella grandiflora L. (big-flowered self-heal) were developed. The developed agents were tested on male Wistar rats with second- and third-degree thermal burns. An assessment of skin restoration was carried out in experimental and control groups of animals. It was revealed that animals treated with the developed soft dosage forms restored the epithelium and coat 6–8 days faster that those treated with compositions containing no extract under study. It was found that the developed soft dosage forms based on P. grandiflora extract exhibit anti-inflammatory and wound-healing action.

scholarly journals THE EFFECT OF SEMBUNG LEAF EXTRACT (BLUMEA BALSAMIFERA) ON THE NUMBER AND DIAMETER OF RATS LEYDIG CELLS INDUCED BY HIGH-FAT DIET

2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
Gede Widhiantara ◽  
Anak Agung Ayu Putri Permatasari ◽  
Putu Angga Wiradana
Keyword(s):  
Treatment Group ◽  
Leydig Cells ◽  
Wistar Rats ◽  
Leaf Extract ◽  
Control Group ◽  
Control Group Design ◽  
Core Diameter ◽  
Post Test ◽  
Male Wistar Rats ◽  
The Mean

This study aims to determine the morphology of Leydig cells in hyperlipidemic wistar rats after having administered with sembung (Blumea balsamifera) extract orally. This study utilised a randomized post-test only control group design. The sample in this study were 16 adult male wistar rats (Rattus novergicus) aged 3-4 months with a body weight of 150-200 grams, which were equally and randomly divided into two groups, namely control group (hyperlipidaemia and sterile aquadest) and treatment group (hyperlipidaemia and sembung leaf extract). Hyperlipidaemia was induced with lard administration for 50 days. Data were analysed statistically using the Independent t-test. The results showed that the number of Leydig cells in the treatment group was higher than the control group with 68.13 ± 1.89 and 55.63 ± 1.92 cells respectively (P <0.05). In addition, the mean Leydig cell core diameter of the control group, 5.00 ± 0.34 µm, was smaller compared to the treatment group which was 5.80 ± 0.20 µm (P <0.05). It can be inferred that sembung leaf extract provides a protective effect against damage to Leydig cells due to hyperlipidaemia.

scholarly journals Carbamazepine does not alter the intrinsic cardiac function in rats with epilepsy

2010 ◽  
Vol 68 (4) ◽  
pp. 573-578 ◽  
Author(s):  
Diego B Colugnati ◽  
Ricardo M Arida ◽  
Roberta M Cysneiros ◽  
Vera C Terra ◽  
Eliza Y.F Sonoda ◽  
...  
Keyword(s):  
Heart Rate ◽  
Wistar Rats ◽  
Saline Solution ◽  
Ex Vivo ◽  
Sudden Unexpected Death ◽  
Control Groups ◽  
Unexpected Death ◽  
Daily Dose ◽  
Male Wistar Rats

Among the causes for sudden unexpected death (SUDEP) in epilepsy, the effects of antiepileptic drugs on the heart have been poorly explored. Based on this, the aim of our study was to evaluate the heart rate (in vivo and isolated ex vivo) and ventricular pressure (isolated ex vivo) of rats with and without epilepsy treated with carbamazepine. Four groups of adult, male Wistar rats (200-250 g) were studied: [A] control rats (n=8), received neither pilocarpine nor carbamazepine [B] carbamazepine-treated rats (n=8), received a daily dose of 120 mg/Kg, i.p. of carbamazepine for two weeks; [C] rats with epilepsy that received just saline solution (n=8); [D] rats with epilepsy that received a daily dose of 120 mg/Kg, i.p. of carbamazepine for two weeks (n=8). Our results showed significant increase in heart rate in animals with epilepsy (with and without the use of carbamazepine) when compared to the control groups in vivo. In contrast, we did not find differences during isolated ex vivo experiments comparing animals with and without epilepsy and despite the use of carbamazepine. Our results suggest that, in isolation, carbamazepine may not be a potential risk factor for sudden unexpected death in epilepsy.

Sign in / Sign up

Export Citation Format

Share Document