Involvement of urinary proteins in the rat strain difference in sensitivity to ethylene glycol-induced renal toxicity

2010 ◽  
Vol 299 (3) ◽  
pp. F605-F615 ◽  
Author(s):  
Yan Li ◽  
Marie C. McLaren ◽  
Kenneth E. McMartin
Keyword(s):  
Ethylene Glycol ◽  
Wistar Rats ◽  
Inflammatory Responses ◽  
Strain Difference ◽  
Kidney Tissue ◽  
Wistar Rat ◽  
Calcium Oxalate Monohydrate ◽  
Macrophage Infiltration ◽  
Urinary Proteins ◽  
F344 Rats

Ethylene glycol (EG) exposure is a common model for kidney stones, because animals accumulate calcium oxalate monohydrate (COM) in kidneys. Wistar rats are more sensitive to EG than Fischer 344 (F344) rats, with greater COM deposition in kidneys. The mechanisms by which COM accumulates differently among strains are poorly understood. Urinary proteins inhibit COM adhesion to renal cells, which could alter COM deposition in kidneys. We hypothesize that COM accumulates more in Wistar rat kidneys because of lower levels of inhibitory proteins in urine. Wistar and F344 rats were treated with 0.75% EG in drinking water for 8 wk. Twenty-four-hour urine was collected every 2 wk for analysis of urinary proteins. Similar studies were conducted for 2 wk using 2% hydroxyproline (HP) as an alternative oxalate source. Total urinary protein was higher in F344 than Wistar rats at all times. Tamm-Horsfall protein was not different between strains. Osteopontin (OPN) levels in Wistar urine and kidney tissue were higher and were further increased by EG treatment. This increase in OPN occurred before renal COM accumulation. Untreated F344 rats showed greater CD45 and ED-1 staining in kidneys than untreated Wistars; in contrast, EG treatment increased CD45 and ED-1 staining in Wistars more than in F344 rats, indicating macrophage infiltration. This increase occurred in parallel with the increase in OPN and before COM accumulation. Like EG, HP induced markedly greater oxalate concentrations in the plasma and urine of Wistar rats compared with F344 rats. These results suggest that OPN upregulation and macrophage infiltration do not completely protect against COM accumulation and may be a response to crystal retention. Because the two oxalate precursors, EG and HP, produced similar elevations of oxalate, the strain difference in COM accumulation may result more so from metabolic differences between strains than from differences in urinary proteins or inflammatory responses.

Strain differences in urinary factors that promote calcium oxalate crystal formation in the kidneys of ethylene glycol-treated rats

2009 ◽  
Vol 296 (5) ◽  
pp. F1080-F1087 ◽  
Author(s):  
Yan Li ◽  
Kenneth E. McMartin
Keyword(s):  
Ethylene Glycol ◽  
Calcium Oxalate ◽  
Wistar Rats ◽  
Kidney Tissue ◽  
Wistar Rat ◽  
Crystal Formation ◽  
Rat Strains ◽  
Crystal Deposition ◽  
Caox Crystal ◽  
F344 Rats

Ethylene glycol (EG)-induced hyperoxaluria is the most commonly employed experimental regimen as an animal model of calcium oxalate (CaOx) stone formation. The variant sensitivity to CaOx among different rat strains has not been fully explored, although the Wistar rat is known to accumulate more CaOx in kidney tissue after low-dose EG exposure than in the Fischer 344 (F344) rats. Supersaturation of CaOx in tubular fluid contributes to the amount of CaOx crystal formation in the kidney. We hypothesized that the urinary supersaturation of CaOx in Wistar rats is higher than that of F344 rats, thereby allowing for greater CaOx crystal deposition in the Wistar rat. Age-matched male Wistar and F344 rats were treated with 0.75% EG or drinking water for 8 wk. Twenty-four-hour urine was collected at 0, 2, 4, 6, and 8 wk for analysis of key electrolytes to calculate the CaOx supersaturation. Plasma oxalate level was also measured. Our data confirmed the different sensitivity to renal toxicity from EG between the two rat strains (Wistar > F344). After EG treatment, the plasma oxalate level and urine oxalate excretion were markedly greater in the Wistar rats than in the F344 rats, while urine calcium was slightly decreased in Wistars. Thus, the CaOx supersaturation in urine of Wistar rats was higher, which led to a greater crystal deposition in kidney in Wistar rats. These studies suggest that during EG treatment, changes in urine electrolytes and in CaOx supersaturation occur to a greater extent in the Wistar rat, in agreement with its greater sensitivity to EG toxicity.

Surface epithelial ultrastructure of the polycystic ovary in the BB wistar rat

1986 ◽  
Vol 44 ◽  
pp. 252-253
Author(s):  
R. C. Kaufmann ◽  
F. K. Khosho ◽  
K. S. Amankwah
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Wistar Rats ◽  
Polycystic Ovary ◽  
Wistar Rat ◽  
Polycystic Ovaries ◽  
Chemical Diabetes ◽  
Scanning Electron

Diabetes decreases the fertility of females, but the mechanisms are not completely understood. In our investigations, we have found that 13% of the female BB Wistar rats that spontaneously developed chemical diabetes had persistent estrous. In this study the ovaries of these rats were examined by scanning electron microscopy(SEM) and compared to normal-cycling controls as well as to rats that had developed polycystic ovaries(PCO) by exposure to constant 1ight.

Latent Haemobartonella muris infection: its transmission and decline in an inbred, ectoparasite-free strain of Wistar rat

Parasitology ◽  
1975 ◽  
Vol 71 (1) ◽  
pp. 35-40 ◽  
Author(s):  
Roberta Bartlett ◽  
Phyllis Pease
Keyword(s):  
Inbred Line ◽  
Experimental Infection ◽  
Wistar Rats ◽  
Latent Infection ◽  
Wistar Rat ◽  
Wild Rats ◽  
Free Strain

Ectoparasite-free, SPF Italian Wistar rats were consistently found to carry a latent infection with Haemobartonella muris, activable by splen ectomy. In an inbred line this diminished and eventually ceased in six generations. Experimental infection from wild rats demonstrated that this was not apparently due to immunity.

scholarly journals The Comparison of Bay Leaf and Celery Leaf Infusion Effect on Decreasing LDL Level in Dyslipidemic Wistar Rats Model

1970 ◽  
Vol 1 (1) ◽  
pp. 21
Author(s):  
Anjani Putri Retnaninggalih ◽  
Erfan Efendi ◽  
Hairrudin Hairrudin
Keyword(s):  
Cholesterol Level ◽  
High Fat Diet ◽  
Wistar Rats ◽  
Ldl Cholesterol ◽  
Wistar Rat ◽  
Positive Control ◽  
Negative Control ◽  
High Fat ◽  
Leaf P ◽  
One Way Anova

Coronary heart disease (CHD) is the cause of 7,3 million death globally in 2008. The main pathophysiology process that leads to CHD is atherosclerosis which is caused by high LDL cholesterol level. The aim of this study was to explore bay leaf and celery leaf infusion effect on reducing LDL cholesterol level in dyslipidemic rat model. The type of this study was true experimental research using wistar rat (Rattus novergicus) as the sample. The rats were induced by high fat diet and PTU for two weeks then each of the group were given either bay leaf infusion, celery leaf infusion, simvastatin (positive control), or aquadest (negative control) for a week. The measurement of LDL level used Friedewald formulation. Data was analyzed using paired sample t test and one way ANOVA. As the result there was a significance reduction on LDL level after treatment with bay leaf (p=0,013) and celery leaf infusion (p=0,035) but there was no significance difference between groups (p=0,293). It was concluded that bay leaf and celery leaf infusion could reduce the LDL level in dyslipidemic wistar rat but there was no difference on the capability of the two different leafs on reducing LDL level. Keywords: dyslipidemia, LDL, bay leaf, celery leaf, wistar rats

scholarly journals Staining Interactions of Bixa Orellana (Annatto) Seed Extracts with Tissues of Wistar Rats

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Fasogbon Samuel Ayobami
Keyword(s):  
Column Chromatography ◽  
Wistar Rats ◽  
Blood Smear ◽  
Wistar Rat ◽  
Ethanol Solution ◽  
Giemsa Stain ◽  
Staining Reaction ◽  
Distilled Water ◽  
Bixa Orellana ◽  
Seed Extracts

Introduction: Bixa orellana is an ancestral multi use plant popularly known as Achiote or lipstick tree in view of its reddish – orange dye on its seeds, Central and South American populations used these seeds to color their bodies and lips, B. orellana is the only species of Bixaceae family. Aim: The aim of this study was to stain the organs such as skin, liver, kidney, brain, intestines, and bone marrow of a wistar rats with solutions of Bixa orellana (Annatto) seed extracts. Methods: The study design was experimental research, the seeds of Bixa orellana were extracted in distilled water, absolute ethanol and acetone, using maceration methods and the fractions of the extracts were determined using column chromatography while preliminary, the solutions of the extracts were used to stain tissues listed above at varying pH to establish staining interactions of the crude extracts and fractions eluted from the column chromatography. Results: The most significant staining interaction were observed in ethanol solution of bixa extract, followed by acetone and distilled water and staining were also observed at column fraction(9-26), with background yellowish appearance in all the staining solutions which was contrast to controls (haematoxylin and eosin) stained sections and no staining reaction was observed in blood smear of wistar rat. The staining interactions of great quality was observed at pH 5.0 and 7.5, despite its staining ability it was neither superior to eosin nor a substitute to giemsa stain due to the yellowish background appearance and its complete inactivity on blood smear. Conclusion: Bixa orellana dye extracts can be grouped under compound dyes or neutral dyes due to its interaction at both pH 5.0 and 7.5 and cannot be used as substitute for Giemsa stain.

scholarly journals The hematobiochemical status of Wistar rat line under the bovine leukemia virus experimental infection

2019 ◽  
Vol 12 (3) ◽  
pp. 382-388
Author(s):  
Ekaterina Sergeevna Krasnikova ◽  
Fayssal Bouchemla ◽  
Alexander Vladimirovich Krasnikov ◽  
Roman Vladimirovich Radionov ◽  
Anastasia Sergeevna Belyakova
Keyword(s):  
Bovine Leukemia Virus ◽  
Wistar Rats ◽  
Blood Platelets ◽  
Leukemia Virus ◽  
Wistar Rat ◽  
Laboratory Model ◽  
Enzyme Linked Immunosorbent Assay ◽  
Endocrine Disorders ◽  
Adult Rats ◽  
Group I

Aim: This study aimed to elucidate the ability of the bovine leukemia virus (BLV) to integrate into cells of heterologous organisms, in particular, Wistar rats, and examine the manifestations of the pathological process that could be seen in them. Materials and Methods: Wistar rats - were divided into three groups. The first group (I) was fed milk of intact cows, the second (II) - milk of BLV-infected cows, and the third (III) - milk of cows, clinically BLV sick. Rats of all groups were divided into two subgroups: In the subgroup "a", there were adult rats, and in the subgroup "b", their offspring were included. At 3, 6, 9, and 12 months from the start of the experiment, the animals' blood of each group was examined by polymerase chain reaction (PCR) and enzyme-linked immunosorbent assay for the presence of BLV provirus and specific anti-leukemia antibodies. A general and biochemical blood test was performed; pathological changes in the internal organs were recorded. Results: Using the PCR, the BLV infection was established in all experimental rats, whose immune response was expressed in varying degrees. At the initial stage of the infection, offspring rats were born healthy. The rats of the control groups Ia and Ib were intact to the BLV throughout the experiment. The biochemical blood tests have shown several signs of intoxication, endocrine disorders, and development of malignant processes in the experimental animals. There are also signs of liver, kidney, and myocardial damages, regardless of whether milk is infected or the cows are clinically leukemic. By the time, the experimental rats developed persistent thrombocytosis with an increase in the average volume of the blood platelets, which may be evidence of the leukemia infection by the megakaryocytic type. The most pronounced character of the change was in the offspring generation. Conclusion: Wistar rats can be considered as a suitable laboratory model to study the BLV pathogenesis. Rats are not BLV natural host, however, they developed the pathognomonic BLV infection symptoms when they were fed infected and leukemic cow's milk.

scholarly journals Histologi Lumen Dan Endotelium Arteri Dorsal Penis Tikus Wistar (Rattus Novergicus) Yang Diinduksi Pakan Tinggi Lemak

2020 ◽  
Vol 7 (1) ◽  
pp. 73
Author(s):  
I Wayan Rosiana ◽  
I Gede Widhiantara
Keyword(s):  
Treatment Group ◽  
High Fat Diet ◽  
Wistar Rats ◽  
Wistar Rat ◽  
Lumen Diameter ◽  
Control Group ◽  
High Fat ◽  
Arterial Lumen ◽  
Male Wistar Rats ◽  
The Difference

This study aims to look at the histopathological picture of the dorsal arteries of the penis of the hiperlipidemic wistar rats (Rattus novergicus) induction by high-fat diet that seen in terms of lumen diameter and thickness of the arterial endotelium wall. Hyperlipidemia is a risk factor for ateriosclerosis in the penile arteries causing erectile dysfunction in men. This study is an experimental study with a randomized posttest only control goup design. The sample are  10 individuals adult male wistar rats aged 3-4 months with a range of body weight 150-200 grams. Before treatment, adaptation was carried out for 7 days. After that the sample rats in the treatment group were made hyperlidemic by feeding lard for 50 days. Then surgery is performed for histopathological preparations at the posttest. To determine the differences in endotelium thickness and arterial lumen diameter in the two groups, an independent t-test was used. Thick diameter data of the endotelium and dorsal arteries of the penis of the wistar rat between the lower treatment group and the control group. The difference that occurred was statistically significant (p <0.05). So it can be concluded that the provision of high-fat diet (hyperlipidemia) decreases the lumen diameter and endotelium thickness of dorsal arteries penis. Keywords: Dorsal arteries, high-fat diet, Wistar rats

scholarly journals THE EFFECT OF CALCIUM HYDROXIDE-PROPOLIS ON THE NUMBER OF MACROFAG CELLS ON THE WISTAR RAT DENTAL WITH PULPA PERFORMANCE

2020 ◽  
Vol 10 (2) ◽  
pp. 58
Author(s):  
Setyabudi Setyabudi ◽  
Devi Eka Juniarti ◽  
Ira Widjiastuti ◽  
Maughfirah Shintya Fathori
Keyword(s):  
Calcium Hydroxide ◽  
Cellular Response ◽  
Wistar Rats ◽  
Inflammatory Cells ◽  
Wistar Rat ◽  
Control Group ◽  
Pulp Tissue ◽  
Pulp Capping ◽  
Macrophage Cells ◽  
Combined Application

Background: Cellular response of dental pulp to existing lesions, caused by infiltration of inflammatory cells that migrate from blood vessels to the site of injury. Macrophages are the cells that most appear when inflammation occurs. Treatment for maintaining pulp tissue vitality is called pulp capping. Calcium hydroxide as a pulp capping material has the ability to trigger the growth of dentin bridges or remineralization, but calcium hydroxide can induce migration and proliferation of inflammatory cells. Currently the field of dentistry is developing propolis as an alternative pulp capping material. That is because propolis has anti-inflammatory properties. Objective: To analyze the effect of the combination of calcium hydroxide-propolis on the number of macrophage cells in the teeth of wistar rats with pulp perforation. Method: This study used 30 samples of Wistar rats which were preparated until perforation and then divided into 3 groups. The first group continued with filling with cention, the second group continued with application of calcium hydroxide and filled with cention, and the third group continued with the application of combination of calcium hydroxide and propolis and then being filledwithcention. Macrophage cell is calculated histopathologically by using compound light microscope on the 3rd day with 400x magnification. Results: The Kruskal-Wallis test results showed significant differences in macrophages after the combination of calcium hydroxide and propolis (p = 0,000). The combined application of calcium hydroxide and propolis showed higher macrophages than the application of calcium hydroxide and the control group. Conclusion: Application of calcium hydroxide - propolis combination was proven increase the number of macrophage cells in Wistar Rats (Rattus Norvegicus) with pulp perforation

scholarly journals Comparative Study of Effect of Silver Nitrate Gel and Differentiated Dermal Precursors (BMSCs) on Third Degree Burn in Wistar Rats

2020 ◽  
Vol 11 (1) ◽  
pp. 200-206
Author(s):  
Balaji K ◽  
Perumal Saraswathi ◽  
Prabhu K ◽  
Shila Samuel ◽  
Melani Rajendren ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Silver Nitrate ◽  
Wistar Rats ◽  
Burn Injury ◽  
Wistar Rat ◽  
Metal Plate ◽  
Healing Time ◽  
The Body ◽  
Burn Wound ◽  
Healing Wound

Skin is an ectodermal derivative that maintains internal homeostasis of the body. Any damage to the skin like burn injury internal homeostasis is lost, resulting in delayed healing. The aim is to study the histoarchitecture comparative effect of silver nitrate gel, and BMSCs (DDP) on third-degree burns in Wistar rats. A burn wound of size 2.5 cm (length) x 2.5 cm (breadth) x 6 mm (depth) was created using a preheated metal plate on flanks of Wistar rat. Every burn wound was treated with silver nitrate gel (commercially available as silverex), bone marrow differentiated dermal precursors, and monitored for 1, 7, 14, 21 days until wound healing. Wound surface area was measured and compared among groups with histological and gross observations. The healing time was faster in bone marrow differentiated dermal precursors (DDP) group compared to control. Prolonged silver nitrate gel usage heals burn wound with no infection, but silver toxicity was noted. Wound contraction is slower but steady using bone marrow differentiated dermal precursors (DDP) cell when compared to the group treated with silver nitrate gel. The data from this study help use to use bone marrow differentiated dermal precursors (DDP) cells as an alternate and effective way to treat burn wounds.

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