How Can We Standardize Peritoneal Thickness Measurements in Experimental Studies in Rats?

2001 ◽  
Vol 21 (3_suppl) ◽  
pp. 338-341 ◽  
Author(s):  
Soner Duman ◽  
Sait Sen ◽  
Ali I. Günal ◽  
Gülay Asci ◽  
Fehmi Akcicek ◽  
...  
Keyword(s):  
Standard Method ◽  
Experimental Studies ◽  
Abdominal Muscle ◽  
Measurement Methods ◽  
Albino Rats ◽  
Protein Loss ◽  
The Mean ◽  
Wistar Albino Rats ◽  
Thickness Measurements ◽  
Peritoneal Morphology

Objective The various methods of measuring peritoneal thickness in experimental studies in rats have yielded conflicting results. Also, no standard method exists to assess histologic findings in peritoneal morphology. We therefore undertook the present study to create a reproducible and standard method for assessing rat peritoneal histology in experimental studies. Methods Parietal peritoneal samples from 61 Wistar albino rats were used in the study. Excepting the skin, the whole abdominal wall from each rat was cut two-dimensionally (longitudinally and horizontally), fixed in formalin, and processed routinely for light microscopy. Slides were divided into two groups according to the direction of the inner abdominal muscle fibers in the sections. Longitudinal and horizontal sections of abdominal muscle were evaluated. For every section, one histopathology image was captured from a light microscope to an IBM-compatible computer. Peritoneal thickness (mean of the maximum and the minimum) and submesothelial area (SMA) were drawn on the image. A computer program then automatically performed measurements. Two different measurement methods were compared, based on the same sections. Results The mean peritoneal thickness was 91 ± 8 μm in the longitudinal sections and 75 ± 7 μm in the horizontal sections ( p < 0.05). Measurements of the SMA were found to be 47,762 ± 4,374 μm2 for the longitudinal sections and 40,389 ± 3,631 μm2 for the horizontal sections ( p < 0.05). In both types of sections, a positive correlation (96% for longitudinal and 90% for horizontal) was found between the SMA and the peritoneal thickness ( p < 0.01). The SMA measurements correlated significantly with functional properties [ratio of the dialysate concentration of glucose initially and after a 1-hour dwell (D1/D0 glucose), ultrafiltration, and protein loss; p < 0.01]. Conclusion Peritoneal thickness can be measured as a mean of the minimum and maximum values. That measurement strongly correlates with submesothelial area. Both types of sections can be used, but the horizontal and longitudinal sections show systematic differences. All samples in a study should be taken using the same section pattern, either longitudinal or horizontal.

scholarly journals Effect of Curcuma longa (Turmeric) on serum creatine kinase-MB and troponin I in isoproterenol induced myocardial infarction in wistar albino rats

2018 ◽  
Vol 13 (2) ◽  
pp. 47-53
Author(s):  
Sharmin Nahar ◽  
Qazi Shamima Akhter
Keyword(s):  
Myocardial Infarction ◽  
Body Weight ◽  
Troponin I ◽  
Curcuma Longa ◽  
Heart Weight ◽  
Control Group ◽  
Albino Rats ◽  
Creatine Kinase Mb ◽  
The Mean ◽  
Wistar Albino Rats

Background: The prevalence of myocardial infarction (MI) is increasing day by day in Bangladesh due to socioeconomic transition. Spices and herbs are important source of remedy for various diseases in human. Curcuma longa suggested to be used as an indigenous medicine for the prevention and treatment of cardiovascular disease. Objective: To observe the effect of Curcuma longa in isoproterenol induced myocardial infarction in Wistar albino rats. Methods: This experimental study was carried out in the Department of Physiology, Dhaka Medical College, Dhaka during 2015. Twenty one Wistar albino male rats, weighing 100 to 150 g (initial body weight); aged 85 to 100 days were selected for the study. After acclimatization for 14 days, the rats were divided into BC (Baseline control group), ISP-TC (Isoproterenol treated control group) and CLP-ISPT (Curcuma longa pretreated and isoproterenol treated group). Each group consisted of 7 rats. After experiment, on the 10th day, final body weight was taken, rats were sacrificed and blood samples were collected from the heart. The heart was removed and weighed. Serum creatine kinase-MB (CK-MB) level was estimated by ELISA method and Troponin I (cTnI) level by AxSYM method. The statistical analysis was done by one way ANOVA and Bonferroni test as applicable. Results: In this study, the mean percent (%) change of body weight (p<0.01), mean serum CK-MB (p<0.001) and cTnI (p<0.001) levels were significantly higher but mean heart weight was non significantly higher in ISP-TC in comparison to those of BC. Again, the mean percent (%) change of body weight (p<0.01), mean heart weight (p<0.01), mean serum CK-MB (p<0.01) and cTnI (p<0.001) levels were significantly lower in CLP-ISPT than those of ISP-TC group. Conclusion: From the results, it can be concluded that Curcuma longa may have cardioprotective effect. J Bangladesh Soc Physiol. 2018, December; 13(2): 47-53

scholarly journals Wound Healing Study of Panchavalkal Ointment in Wistar Albino Rats

2021 ◽  
pp. 110-116
Author(s):  
Vaikhari Dhurve ◽  
Pravin Jawanjal ◽  
Mukesh Naria ◽  
Tukaram Dudhamal ◽  
Minal Kalambe ◽  
...  
Keyword(s):  
Wound Healing ◽  
Treated Group ◽  
Control Group ◽  
Albino Rats ◽  
Wound Area ◽  
Mean Values ◽  
Wistar Strain ◽  
The Mean ◽  
Wistar Albino Rats ◽  
Wound Healing Activity

Introduction: Panchavalkal is a well-known Ayurvedic poly-herbal formulation that has been reported to be used against inflammation, to clean ulcer, wound. Aims and Objectives: To investigate the wound healing activity of Panchavalkal ointment. Materials and Methods: Wistar strain albino rats of either sex weighing 200±20 g were used for the experiments divided in four groups each consisted of six rats.  Statistical Analysis: One-way analysis of variance (ANOVA) was used to compare the mean values of quantitative variables among the groups followed by Dunnett’s multiple ‘t’ test Observations & Results: Sesame oil and Panchvalkal ointment showed almost similar wound healing effects in comparison to control group. Discussion: Panchavalkal ointment showed statistically highly significant percentage of contraction of excision wound area compared to the normal control. Epithelization period was significantly decreased in oil and Panchavalkal ointment treated group. Conclusion: Panchavalkal ointment decreased the pain, tenderness, redness and swelling that helps to control infection and enhanced the rate of wound healing in albino rats.

scholarly journals Effect of Oral Administration of the Leaf Extract of Uvaria chamae (Mmimi Ohia) in Albino Wistar Rats

2020 ◽  
pp. 52-56
Author(s):  
Innocent S. I. Ogbu ◽  
Eugenia O. Okafor ◽  
Emmanuel Ifeanyi Obeagu ◽  
Chinemerem C. Ogbu ◽  
Bessie Nonyelum. Esimai ◽  
...  
Keyword(s):  
Leaf Extract ◽  
Ethanolic Extract ◽  
Lymphocytic Infiltration ◽  
Albino Rats ◽  
African Countries ◽  
Toxicological Effects ◽  
Forest Regions ◽  
Group A ◽  
The Mean ◽  
Wistar Albino Rats

Uvariachamae (vernacular; mmimiohia) belongs to the family Annonaceae. It is a small tree that grows wild to about 4.5 meters in the savanna and rain forest regions of Nigeria and other African countries. It is known to possess various medicinal and therapeutic properties. The biochemical and toxicological effects of its ethanolic leaf extract on Wistar albino rats were assessed in this study. Twenty albino rats grouped into 4 (5 animals in each group) were used. Group A served as control while groups B, C, D received 250, 500 and 1 000mg/kg body weight of the extract for a period of 30 days. The mean alkaline phosphatase activity of the control was 350±11.0Iu/l as against 490±38.00, 630±60, and 370±20 for groups B, C, and D (p =0.01, ˃0.05, 0,001) respectively. The mean serum urea concentration of the control was 5.00±0.19mg/dl as against 3.80±0.31, 3.30±0.28 and 3.50±0.18mg/dl (p=0.01, 0.001, 0.001) for groups B, C, D respectively. The extract had no significant effects on the liver enzymes, ALT and AST, serum sodium, potassium, chloride as well as creatinine of the rats. Serum bicarbonate was raised significantly, 26.00±0.53, 28.00±0.60, 27.00±1.10, 29.00±1.10 for groups B, C, D (p= 0.042, ˃0.05, 0.043) respectively. Histological studies showed no abnormality in the kidneys and mild peri-portal lymphocytic infiltration of the liver. Phytochemical analyses of the extract revealed the presence of alkaloids, flavonoids, resins, proteins terpenoids and reducing sugar. Hence, ethanolic extract of leaves of Uvaria chamae has no serious deleterious effects on Wistar albino rats and may be safely used in traditional medical practice.

scholarly journals Amelioration of Diabetic Nephropathy in Streptozotocin-Induced Diabetic Rats by Acacia catechu Leaves Extract

2019 ◽  
Vol 09 (03) ◽  
pp. 116-120
Author(s):  
Prima D’souza ◽  
Rajendra Holla ◽  
Gangadhara Swamy
Keyword(s):  
Intraperitoneal Administration ◽  
Experimental Studies ◽  
Ethanolic Extract ◽  
Diabetic Rats ◽  
Albino Rats ◽  
Group A ◽  
Wistar Albino Rats ◽  
Group B ◽  
Histopathological Studies ◽  
Acacia Catechu

Abstract Objective The present study was performed to evaluate the ethanolic extract of leaves of Acacia catechu (A. catechu) for its effect on streptozotocin (STZ)-induced diabetes mellitus (DM) and its renal complications in male Wistar albino rats. Materials and Methods Male Wistar albino rats were grouped into control (A), STZ-induced DM (B), STZ-induced DM rats with A. catechu orally of 75 mg/kg body weight (kbw) for 35 days (C), with each group having six rats (n = 6) weighing between 200 to 250 g each. Group A receives only water, orally; group B receives a single dose of STZ at 45 mg/kbw intraperitoneal administration (IP); group C receives STZ IP and oral A. catechu for 35 days. On the 36th day, animals were euthanized, the kidney tissues were analyzed for biochemical parameters, such as GOT (glutamic oxaloacetic transaminase), GPT (glutamic pyruvic transaminase), oxidative stress assessment parameters, and histopathological studies. Results In group C rats, activities of the enzymes were nearer to group A when compared with group B. Histopathological findings were also suggesting that renal toxicity were observed at a lesser extent in group C. Conclusion The ethanolic extract of A. catechu signified as nephroprotective effect. The present data could provide adequate confirmation of the efficacy of ethanolic extract of leaves of A. catechu for further experimental studies on a standardized formulation.

scholarly journals SERUM CONCENTRATION OF THYROID HORMONES AND THYROID STIMULATING HORMONE IN ALLOXAN-INDUCED TYPE 1 DIABETIC WISTAR ALBINO RATS

2019 ◽  
Vol 17 (4) ◽  
pp. 112-116
Author(s):  
Sher Zamir ◽  
Azhar Ijaz ◽  
Muhammad Umair ◽  
Rahat Jan Wazir ◽  
Mohammad Salman ◽  
...  
Keyword(s):  
Thyroid Hormones ◽  
Thyroid Stimulating Hormone ◽  
Control Group ◽  
Albino Rats ◽  
Serum Concentrations ◽  
Serum T3 ◽  
The Mean ◽  
Wistar Albino Rats ◽  
Mean Concentration

Background: Literature has reported thyroid functional abnormalities in diabetes mellitus. The objectives of this study were to determine and compare the serum concentrations of T3, T4 and TSH in alloxan-induced type 1 diabetic and control Wistar albino rats. Materials & Methods: It was an experimental animal study on 20 Wistar albino rats, extending over a period of eight weeks. Alloxan, a diabetogenic agent, was used to produce animal models of type 1 diabetes. Animals were divided equally into two groups: control and diabetic. The animals in the diabetic group were injected intraperitoneally with 150 mg/kg body weight of 10% alloxan to induce diabetes. After 72 hours, diabetes was confirmed with glucometer (glucose >350mg/dl). During the course of experiment, one rat in control group and 2 rats in diabetic group died. Blood was collected for estimation of serum concentrations of thyroid hormones, thyroid stimulating hormone at the end of experimental period. Serum T3, T4, and TSH were measured using ELISA kits. Results: At the end of eight weeks, the mean concentration of serum T3 was 0.69 ±0.29 ng/ml and 0.44±0.02 ng/ml in control and diabetic groups, respectively. The mean concentration of T4 was 3.78±1.16 μg/dl and 2.24±0.86 μg/dl in control and diabetic groups respectively. The mean concentration of TSH was 0.77±0.20 μU/ml and 1.41±0.23 μU/ml in control and diabetic groups respectively. The mean serum concentrations of T3 (p=.0025) and T4 (p=<.00001) were significantly lower in diabetic and that of TSH (p=<.00001) were significantly higher in diabetic than control group. Conclusion: This study concludes that the serum concentrations of both T3 and T4 are significantly lower and that of TSH is significantly higher in alloxan-induced type 1 diabetic as compared to control group in Wistar albino rats.

scholarly journals Antidiabetic activity of Manomani chooranam aqueous extract on female wistar albino rats

2019 ◽  
Vol 8 (9) ◽  
pp. 2153
Author(s):  
Sabari Anandh J. V. ◽  
Manimekalai Kumarappan ◽  
Padmavathi Shanmuganathan ◽  
Subha Vinayagam ◽  
Iyyankannu . ◽  
...  
Keyword(s):  
Blood Sugar ◽  
Aqueous Extract ◽  
Blood Sugar Level ◽  
Control Group ◽  
Albino Rats ◽  
Dependent Manner ◽  
Standard Drug ◽  
The Mean ◽  
Group 2 ◽  
Wistar Albino Rats

Background: The aim of the present study was to evaluate the antidiabetic potential of Manomani chooranam (MMC), an indigenous polyherbal siddha formulation in Streptozotocin (STZ) induced diabetic female Wistar albino rats.Methods: Aqueous extract of MMC was prepared. Wistar albino rats were divided into six groups (n=6). Group 1 was kept as normal control, Group 2, 3, 4, 5 and 6 were induced diabetes. After induction, the group 2 was kept as diabetes control; Group 3 received the standard drug metformin (100 mg/kg), whereas Groups 4, 5 and 6 were treated with the aqueous extract of MMC at 500 mg/kg, 1000 mg/kg and 1250 mg/kg doses, respectively for the 21 days. Blood sugar was estimated at the end of each week. At the end of the study, rats were sacrificed and the pancreas was analyzed for histopathological changes. Data expressed as mean±standard error of the mean. Statistical analysis was done using one-way ANOVA followed by post hoc Tukey's test. p<0.05 considered statistically significant.Results: The groups which received aqueous extract of MMC at 500 mg/kg, 1000 mg/kg and 1250 mg/kg showed a significant decrease in the mean blood sugar level when compared to normal level. The groups which received MMC shows significant reduction in blood sugar level in comparison with standard drug metformin 100 mg/kg.Conclusions: The aqueous extract of MMC was able to decrease the elevated blood sugar levels in dose dependent manner.

The Effect of Pentoxifylline and Hyperbaric Oxygen on Achilles Osteotendinous Junction İnjury: An experimental animal model study

2019 ◽  
Vol 21 (6) ◽  
pp. 437-446
Author(s):  
Mehmet Taner Palabıyık ◽  
Yavuz Akalın ◽  
Ömer Yalçın ◽  
İsmail Gökhan Şahin ◽  
Nazan Çevik ◽  
...  
Keyword(s):  
Animal Model ◽  
Hyperbaric Oxygen ◽  
Experimental Studies ◽  
Control Group ◽  
Albino Rats ◽  
Positive Effects ◽  
Model Study ◽  
Animal Model Study ◽  
Wistar Albino Rats ◽  
Biomechanical Tests

Background. To investigate the effects of hyperbaric oxygen (HBO) and pentoxifylline (PTX) treatment on osteotendinous junction healing of Achilles tendon in an animal model. Materials and methods. Thirty-six adult female Wistar-albino rats were randomly divided into three groups as control, PTX and HBO groups with a total of 12 rats per group. Under general anesthesia, the Achilles tendons were cut at the level of the osteotendinous junction and repaired. After the surgery, no treatment was given to the control group. Fifty mg/kg intraperitoneal PTX was administered to the PTX group daily for 1 week. The HBO group was exposed to 2,5 atmospheric pressure, 100% oxygen for 2 hours daily for 1 week. All animals were sacrificed at the end of sixth week. Biomechanical tests and histological examinations were performed. Results. Energy absorption was significantly higher in the PTX group than that in the control group after biomechanical tests (p=0.010). Histopathological evaluation results revealed no difference between the groups: however, hyalinization level was relatively better in the HBO group than that in the control group (p=0.026). Conclusions. 1. We concluded that PTX has a positive effect on the treatment of osteotendinous junction injuries based on our results. 2. Although HBO therapy did not provide statistically significant differences, it might have some positive effects on these injuries. 3. Further experimental studies and clinical trials should be conducted.

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