scholarly journals Synthesis of Silver Nano-particles by Electrochemical Method and the Effects on the Serum Levels of Thyroid Hormones (T3, T4) in Adult Male Rats

2019 ◽  
Vol 13 (4) ◽  
pp. 21-25
Author(s):  
Zohreh Parang ◽  
◽  
Davood Moghadamnia ◽  

Background: Silver nano-particles have anti-fungal properties. In the present study, silver nano-particles were synthesized by electrochemical method and its effects on the serum levels ofT3 and T4 hormones were investigated in adult male rats. Methods: In this experimental study, 28 adult male Wistar rats weighing approximately 180-220g were divided into 4 groups of 7 rats. The control group (no treatment). The experimental groups 1and 2 received silver intraperitoneal nano-particle doses of 25 and 100 mg/kg, respectively, for 14 days. The nano-aprticles had been synthesized at 75 seconds interval. The experimental group 3 received silver nano-particles that were synthesized at 300 seconds interval with an intraperitoneal dose of 25 mg/kg for 14 days. At the end of this period, blood samples were obtained from the rats’ hearts, and the serum levels of T3 and T4 hormones were measured. The results were statistically analyzed using ANOVA and Duncan tests. Results: At the completion of the study, there was no significant difference in the mean body weights in all experimental groups compared to control group. The results showed that the mean serum levels of T3 hormone in the experimental group1 increased significantly relative to the control group. However, there was no significant difference in the mean serum levels of T4 hormone in all experimental groups compared to that in the control group (P < 0.05). Conclusions: Silver nano-particles increased the serum T3 hormone level in male Wistar rats.

2021 ◽  
Vol 5 (9) ◽  
pp. 879-882
Author(s):  
Mulyati Sri Rahayu ◽  
Sri Wahyuni ◽  
Yuziani

Introduction: Monosodium glutamate (MSG) is one of the most widely employed food enhancers. Although the umami compound, controversy persists regarding the effects of MSG intake on body weight. Chronic MSG intake may result in excessive body weight gain and obesity. Consumption of MSG result in organ damage, cardiovascular disease, oxidative stress, and also risk factors for obesity. This study aims to determine the effect of oral MSG on obesity in adult male Wistar rats (Rattus norvegicus).Methods: This true experimental study used the post-test control group design. Twenty-four adult male Wistar rats were randomly divided into four groups: control (received distilled water), Group 1 (MSG 0.378 mg/gr BW), Group 2 (0.756 mg/gr BW) and Group 3 (1.512 mg/gr BW). The obesity parameter was obtained by the Lee index. Kruskal-Wallis test follows by Mann-Whitney test were used to compare the Lee index between groups.Results: Lee’s index mean for each group was 358.4%, 314.1%, 287.8%, and 320.9%, respectively. The Kruskal Wallis test showed a significant difference in the Lee index between groups (p = 0.043). A follow-up test using Mann-Whitney found a significant difference between group 2 and the control group (p = 0.043, p <0.05). The mean of Lee index of group 2 was 70.51% lower than the control group.Conclusion: This study concluded that Lee index was not increased in MSG-treated rats than in the control group after oral MSG intervention for 21 days.


2020 ◽  
Vol 1 (1) ◽  
pp. 33
Author(s):  
Wenni Juniarni Tripani ◽  
Muhammad In’am Ilmiawan ◽  
Willy Handoko

Background: Physical exercise aims to improve or maintain physical fitness. However, excessive physical exercise may cause increase of oxidative stress which leads to cellular injury, including in the proximal tubules of kidney. This research aims to find out the effect of single- and repeated- excessive swimming exercise to the kidney histopathology of male wistar rats (Rattus norvegicus). Methods: This research was an experimental study with complete random and post test only control group design. Twenty seven male wistar rats were divided into three treatment groups: control group, single- excessive swimming exercise group (45 minutes for one day), and repeated- excessive swimming exercise group (45 minutes/day for seven days). In the end of the treatment, the kidney of the rats were taken to be analyzed by using hematoxylin-eosin stain. The mean of proximal tubules injury of kidneys were counted by two observers using blinded method. Data were analyzed by using one way anova test. Result: The analysis showed there was a significant difference in the mean percentage of proximal tubules injury between control group and single swimming group as well as the repeated swimming group (Anova p=0,000), also there was significant difference between the treatment groups (p=0,020). The highest average of proximal tubules injury was in the single swimming group. Conclusion: Single- and repeated- excessive swimming exercise causes the proximal tubules injury of kidney.


2018 ◽  
Vol 25 (4) ◽  
Author(s):  
Lilian Ebele Chris-Ozoko ◽  
Onome Okpe ◽  
Wilson Josiah Iju ◽  
John Chukwuma Oyem

Cottonseed oil is an extract from the seeds of cotton plant, that is rich in protein, carbohydrate and fiber.          The objective of the research was to study the effect of cottonseed oil on the histology of the testis.          Materials and methods. Twelve adult male Wistar rats weighing 200 – 250g, were randomly sorted into four groups (I - IV), each containing three animals. Cottonseed oil was administered orally to the experimental animals by means of an orogastric tube. The rats in Group I (the control group) received standard rat pellet and oral normal saline ad libitum only. The animals in Groups II, III, and IV received 0.2 ml, 0.6 ml and 1.0 ml of cotton seed oil per body weight respectively. On the 21st day, the animals were sacrificed by cervical dislocation. The testes were excised and, then, fixed with appropriate fixatives for routine tissue processing.          Results. The results revealed an increase in the luminal diameter of seminiferous tubules, a decrease in the Leydig cell population, the disorientation of spermatogenic series and their detachment from the germinal epithelium.          Conclusions. The present study demonstrated that oral administration of cottonseed oil to male rats displayed a deleterious effect on their testis by disrupting spermatogenesis and the histological architecture of the testis.


Health Scope ◽  
2021 ◽  
Vol 10 (3) ◽  
Author(s):  
Seyed-Hosein Abtahi-Eivary ◽  
Ali Tajpoor ◽  
Ali Firoozi ◽  
Shahrzad Mehrzad ◽  
Mohammad Hosein Beheshti

Background: Noise pollution is a global problem causing changes in the secretion of various hormones and consequently affecting social well-being and quality of life in cities. Objectives: This study aimed to investigate the effect of noise pollution on the levels of testosterone, thyroid, and cortisol hormones in male rats. Methods: In this experimental study, a total of 70 male Wistar rats (200 - 250 g) were randomly assigned into one control and six experimental groups, with 10 rats in each group. Experimental groups were exposed to noise with different intensity (dB) and time (min) as follows: (I) 60 dB, 30 min; (II) 60 dB, 60 min; (III) 85 dB, 30 min; (IV) 85 dB, 60 min; (V) 110 dB, 30 min; (VI) 110 dB, 60 min; (VII) controls. Animals in the experimental groups were exposed to noise in an acoustic chamber designed for this purpose for 50 days. The Noise.exe software was used to generate noise, and the sound level meter (model TES 1358) was used to determine the accuracy of the intensity and frequency of sound. To determine plasma levels of the hormones, appropriate research and commercial kits were used, which were based on the ELISA method. To determine the concentration of hormones other than TSH, human assay kits were used. All statistical tests were performed in SPSS software version 21. Results: Serum levels of cortisol in the 110-dB (30 and 60 min), 65-dB (60 min), and 85-dB (60 min) groups were significantly higher than the control group (P ≤ 0.05). Also, cortisol levels in the 65-dB and 85-dB (30 minutes) groups were higher than the control group; however, the increase was not significant (P > 0.05). The levels of T4, T3, and TSH in the 60-dB and 85-dB groups were significantly lower than in the control group (P ≤ 0.05). The serum levels of T4, T3, and TSH hormones in the 110-dB group were insignificantly lower than the control group (P > 0.05). The serum level of testosterone in the 110-dB group was significantly lower than the control group (P ≤ 0.05). The mean serum levels of testosterone in the 65-dB and 85-dB groups were insignificantly lower than the control group (P > 0.05). Conclusions: Based on this study, exposure to noise pollution increased cortisol secretion and decreased T4, T3, TSH, and testosterone levels in rats. As this hormonal imbalance may create direct and indirect effects, studies and strategies are recommended to control the imbalance of hormones in the polluted environments.


2021 ◽  
Vol 5 (4) ◽  
pp. 851-854
Author(s):  
Mulyati Sri Rahayu ◽  
Sri Wahyuni ◽  
Yuziani

Introduction: Monosodium glutamate (MSG) is one of the most widely employed food enhancers. Although the umami compound, controversy persists regarding the effects of MSG intake on body weight. Chronic MSG intake may result in excessive body weight gain and obesity. Consumption of MSG result in organ damage, cardiovascular disease, oxidative stress, and also risk factors for obesity. This study aims to determine the effect of oral MSG on obesity in adult male Wistar rats (Rattus norvegicus).Methods: This true experimental study used the post-test control group design. Twenty-four adult male Wistar rats were randomly divided into four groups: control (received distilled water), Group 1 (MSG 0.378 mg/gr BW), Group 2 (0.756 mg/gr BW) and Group 3 (1.512 mg/gr BW). The obesity parameter was obtained by the Lee index. Kruskal-Wallis test follows by Mann-Whitney test were used to compare the Lee index between groups.Results: Lee’s index mean for each group was 358.4%, 314.1%, 287.8%, and 320.9%, respectively. The Kruskal Wallis test showed a significant difference in the Lee index between groups (p = 0.043). A follow-up test using Mann-Whitney found a significant difference between group 2 and the control group (p = 0.043, p <0.05). The mean of Lee index of group 2 was 70.51% lower than the control group.Conclusion: This study concluded that Lee index was not increased in MSG-treated rats than in the control group after oral MSG intervention for 21 days.


2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Ivana C Hasan ◽  
Hendra Subroto ◽  
Grace Puspasari

Hypercholesterolemia is an important risk factors of atherosclerosis. Bitter leaf is believed to have potency in decreasing plasma lipid. The aim of this study is to study the effect of bitter leaf ethanol extract in decreasing total cholesterol serum levels on hypercholesterolemic male Wistar rats. This is a true experimental laboratory study with complete randomized design. Antidyslipidemia effect was tested with HFF induction and Propiltiourasil 0,01% towards 30 rats which were divided into 6 groups: groups I as normal control (standard diet), groups II, III, and IV were given bitter leaf ethanol extract of 100 mg/kgBW, 200 mg/kgBW, and 400 mg/kgBW dose, group V as positive control group with Simvastatin, and group VI as negative with aquades. HFF  were given for 14 days then the study was continued for 14 days. The percentage data of the declining total cholesterol levels before and after treatments is analyzed with ANAVA, continued with LSD test. The result between group II, III, and IV with group VI shows a significant difference p<0,01. We concluded bitter leaf ethanol extract can decrease the level of total cholesterol serum of hypercholesterolmic Wistar rats.


2018 ◽  
Vol 10 (1) ◽  
Author(s):  
Karnia Tarnajaya ◽  
Alex Pangkahila ◽  
Wimpie Pangkahila ◽  
Ferbian M. Siswanto

Abstract: This study was aimed to prove that administration of black cincau (Mesona palustris BL) leaf extract increased superoxide dismutase (SOD) levels of overtraining-induced male Wistar rats (Rattus norvegicus). This was a true experimental study using the randomized pretest-posttest control group design. Subjects were 16 male rats (Rattus norvegicus), 6-month old, Wistar strain, weighing 180-200 g, SOD level <39.3 U/mL (normal SOD level), divided into two groups: the control group (P0) and the treatment group (P1). The P0 group was given excessive physical training and aquadest for 14 days, while the P1 group was given excessive physical training and black cincau leaf extract of 54 mg/200 g BW daily for 14 days. The results showed that the mean SOD level before treatment (pretest) in the P0 group was 30.63±2.26 U/mL while in the P1 group was 31.31±2.52 U/mL (P >0.05). After 14-day treatment (posttest), the mean SOD level in the P0 group was 29.36±2.83 U/mL while in the P1 group was 41.31±2.35 U/mL (P <0.01). Further analysis showed that there was no change of SOD levels in the P0 group (P > 0.05), but in the P1 group there was a significant increase of SOD levels from 31.31±2.52U/mL to 41.31±2.35U/mL (P <0.01). Conclusion: Administration of black cincau leaf extract of 54 mg per 200 g of body weight increased SOD level of overtraining-induced male Wistar rats (Rattus norvegicus).Keywords: black cincau leaves, SOD, excessive physical activityAbstrak: Penelitian ini bertujuan untuk membuktikan bahwa pemberian ekstrak daun cincau (Mesona palustris BL) dapat meningkatkan kadar superoksida dismutase (SOD) tikus Wistar (Rattus norvegicus) jantan yang diinduksi pelatihan fisik berlebih. Jenis penelitian ialah eksperimental murni menggunakan randomized pretest-posttest control group design. Subjek penelitian ialah 16 ekor tikus putih jantan (Rattus norvegicus) galur Wistar berumur 6 bulan, sehat, berat badan 180-200 gr, dan kadar SOD <39,3 U/mL (kadar SOD normal), yang dibagi menjadi dua kelompok, yaitu kelompok kontrol (P0) dan kelompok perlakuan (P1), masing-masing berjumlah 8 ekor tikus. Kelompok P0 diberikan pelatihan fisik berlebih dan akuades secara sonde selama 14 hari, dan kelompok P1 diberikan pelatihan fisik berlebih dan ekstrak daun cincau dosis 54 mg/200 gr BB tikus selama 14 hari. Hasil penelitian menunjukkan bahwa rerata kadar SOD sebelum perlakuan (pretest) pada kelompok P0 ialah 30,63±2,26 U/mL, sedangkan pada kelompok P1 ialah 31,31±2,52 U/mL (P >0,05). Setelah perlakuan selama 14 hari (posttest), rerata kadar SOD pada kelompok P0 ialah 29,36±2,83 U/mL, dan pada kelompok P1 ialah 41,31±2,35 U/mL (P <0,01). Hasil analisis efek perlakuan menunjukkan bahwa pada kelompok P0 tidak terjadi perubahan kadar SOD (P >0,05), namun pada kelompok P1 terjadi peningkatan bermakna kadar SOD dari 31,31±2,52 U/mL menjadi 41,31±2,35U/mL (P <0,01). Simpulan: Ekstrak daun cincau dosis 54 mg/200 gr BB tikus dapat meningkatkan kadar SOD tikus Wistar (Rattus norvegicus) jantan yang diinduksi pelatihan fisik berlebih.Kata kunci: daun cincau, SOD, aktivitas fisik berlebih


Author(s):  
A. Ashamu Ebenezer ◽  
A. Oyeniran David ◽  
T. Awora Koyinsola ◽  
O. T. Olayemi ◽  
O. Oyewo Olutoyi

Hibiscus sabdariffa is a common garden plant native to warm-temperate, subtropical and tropical regions throughout the world, used in traditional medicine. It is mostly cultivated for its flowers. The calyces are used as a refrigerant in form of tea (especially in making the sorrel drink popularly known as ‘zobo’ in Nigeria), jellies and jam. Aim: This study evaluates the effects of aqueous leaves extract of Hibiscus sabdariffa on the body, testis weight, histology of the testes and sperm parameter of adult male Wistar rats. Methodology: Twenty-five adult male wistar rats of 10-12 weeks and weighing about 120-140g were divided into four groups (A, B, C and D) (five rats / group), Group A was kept as control and B, C, D were administered 250 mg, 500 mg, 1000 mg  of Hibiscus sabdarfia leaf extract per Kg body weight for 8 weeks. The rats in each group were fed with rat feed and water ad libitum. Administration was by means of an oral cannula. At the end of each experimental period, the rats were sacrificed by cervical dislocation, the testes were harvested and immediately fixed in Bouin’s fluid for histological procedure. However, as soon as the animals were sacrificed, the cauda epididymis was removed and semen analysis was carried out immediately. Results: There was a significant decrease in body weight of all the test groups at (P <0.05) and a significant decrease in the testes of the rats in group D when compared with the control group. Statistical analysis revealed decrease in sperm count, motility and viability with a significance decrease (P <0.05) in group D only as compared to control group. The histoarchitecture revealed significant degenerative changes characterized by vacuolization in the intestitium and seminiferous epithelium when compared with the control group. Conclusion: The aqueous leaves extract of Hibiscus sabdariffa appears to have adverse effects on the fertility of male rats especially when taken over a long period of time.


Author(s):  
Serah J. ◽  
Torgal S. S. ◽  
Ramesh C. ◽  
Anna M.

Background: The objective of the study was to investigate the effect of fenofibrate on acute and subacute models of inflammation in adult male Wistar rats.Methods: After obtaining clearance from Institutional Animal Ethics Committee, six adult male Wistar rats were allocated to each of the three groups i.e. control, aspirin and fenofibrate. Acute inflammation was studied using carrageenan induced rat paw oedema and the volume displacement due to paw oedema was measured using the plethysmograph. Subacute inflammation was studied using foreign body insertion (cotton pellet and grass pith) models. Dry granuloma weight and histopathological examination of the granuloma were the outcome measures for measuring subacute inflammation. The percentage inhibition of inflammation with aspirin and fenofibrate was calculated in both acute and subacute models. The experiments were conducted according to the guidelines of the Committee for the Purpose of Control and Supervision on Experiments on Animals (CPCSEA). The mean volume displacement obtained with a plethysmograph, the mean dry weight of granuloma and the percentage inhibition with aspirin and fenofibrate were analyzed by one way analysis of variance (ANOVA) using Graph pad prism software.Results: Aspirin and fenofibrate significantly reduced both acute and subacute inflammation (p<0.001). Dunnet’s test showed a significant difference in the study groups when compared to the control. The reduction of inflammation with fenofibrate was comparable to aspirin.Conclusions: Oral fenofibrate showed significant anti-inflammatory activity, which was comparable to aspirin, in both acute as well as sub-acute models of inflammation. This anti-inflammatory effect may benefit atherosclerosis in patients receiving fenofibrate for hyperlipidemia.


2018 ◽  
Vol 15 (2) ◽  
pp. 146
Author(s):  
BRILIAN DINANTI ◽  
FITRI HANDAJANI

<p>Liver is an organ with complex metabolism. When the liver is inflamed, cellular immunity will defend against inflammatory agents by stimulating immune cells to produce reactive oxygen species (ROS). Excessive ROS accumulation cause oxydative stress with increased  liver malondialdehyde (MDA) level. Some researches showed that purple sweet potato contain flavonoids (anthocyanins) that functioned as antioxydants. This study aimed to show the prophylactic effect of purple sweet potato extract to the liver MDA level of male Wistar rats induced by carrageenan.</p><p>This study used post-only control group method using 18 male Wistar rats divided into 3 groups: group of rats without treatment, group of rats induced by 0,1 ml of 1% carrageenan by intraplantar injection on day-8, and group of rats given with 872 mg/kgBW of purple sweet potato extract for 7 days and induced by 0,1 ml of 1% carrageenan. In the end of the study, the liver MDA levels were measured by Thio-Barbituric Acid method on each groups.</p><p>The results of One-Way ANOVA test showed there was no significant difference (p = 0,290) between group of rats without treatment (<em>x̅</em>= 207,50) and group of rats induced by carrageenan (<em>x̅</em>=233,17). Then, there is no significant difference (p = 0.978) between group of rats induced by carrageenan and group of rats given with prophylactic purple sweet potato extract and induced by carrageenan (<em>x̅</em>= 232,50).</p><p>The conclusion of this study is giving intraplantar injection of carrageenan can increase liver MDA level insignificantly and giving prophylactic purple sweet potato extract has an effect to decrease the liver MDA level of rats induced by carragenan insignificantly because it contains anthocyanins as antioxidants.</p><p> </p><strong>Keywords: </strong>Liver, <em>Ipomoea batatas</em> L., Malondialdehyde, Anthocyanins


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