Effect Of Selenium on Thyroid Biochemical and Histopathological Changes Induced by Subchronic Lead Acetate Exposure in Adult Albino Rats

2012 ◽  
Vol 20 (2) ◽  
pp. 121-138
Author(s):  
Manar Arafa ◽  
Hebatallah Atteia
2017 ◽  
Vol 2 (2) ◽  
pp. 112-120
Author(s):  
Nazar Mohammed Shareef Mahmood ◽  
Sarkawt Hamad Ameen Hamad ◽  
Dlshad Hussein Hassan ◽  
Karwan Ismael Othman

The toxicity of lead acetate (L. A.) concerned to public health disruptor due to its persistence in the environment and it has the adverse influence on the human and animal health as well. It causes physiological,biochemical, and neurological dysfunctions in humans. Histologically it has a negative effect on the liver which is considered one of the major target organs where acts as detoxification machine by elimination the toxic substance from the blood in rich with it.  As well as it affects kidneys that are the two of the most filtering organs. Therefore the present study was aimed to investigate the histopathological effect of L.A. on liver and kidney tissues in male rats. Twenty male rats involved in the study were equally and randomly divided into two groups each of them involved 10 animals. Group I (castrated rats) and Group II (control) each group received 80mg/L of lead acetate dissolved in one liter distilled water by drinking for 15 days. Histological sections showed some alterations including abnormal architecture, cell degeneration, nuclear degeneration, hyperchromatic hepatocytes, immune cells, degeneration in tubules, dilation in sinusoids, dilation in central vein of liver increased bowman's space glomerular atrophy degeneration of tubular cells in liver and kidney tissues of rats in castrated rats from control group. But the size of degenerated tissue was more severe in castrated male rats. It was concluded that the castration process could produce a hypogonadism and decreased testosterone which owns many receptors in kidney and liver may produce adverse influence with L.A. administration.


2017 ◽  
Vol 18 (1) ◽  
pp. 141-158
Author(s):  
Mamdouh Abouelmagd ◽  
Fathy Seleem ◽  
M Abd-elgawad ◽  
Fatma Abdelhamid ◽  
Mohamed Hamed ◽  
...  

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Said Said Elshama ◽  
Ayman El-Meghawry EL-Kenawy ◽  
Hosam-Eldin Hussein Osman

Cyclosporine is considered one of the common worldwide immunosuppressive drugs that are used for allograft rejection prevention. However, articles that address adverse effects of cyclosporine use on the vital organs such as lung are still few. This study aims to investigate pulmonary toxic effect of cyclosporine in rats by assessment of pulmonary histopathological changes using light and electron microscope examination. Sixty male adult albino rats were divided into three groups; each group consists of twenty rats. The first received physiological saline while the second and third groups received 25 and 40 mg/kg/day of cyclosporine, respectively, by gastric gavage for forty-five days. Cyclosporine reduced the lung and body weight with shrinkage or pyknotic nucleus of pneumocyte type II, degeneration of alveoli and interalveolar septum beside microvilli on the alveolar surface, emphysema, inflammatory cellular infiltration, pulmonary blood vessels congestion, and increase of fibrous tissues in the interstitial tissues and around alveoli with negative Periodic Acid-Schiff staining. Prolonged use of cyclosporine induced pulmonary ultrastructural and histopathological changes with the lung and body weight reduction depending on its dose.


1993 ◽  
Vol 21 (01) ◽  
pp. 33-44 ◽  
Author(s):  
Chun-Ching Lin ◽  
Cheng-Hung Lin

In order to isolate the main hepatoprotective component of Echinops grijisii, the crude drug was extracted with methanol and subjected to continuous extractions using n-hexane chloroform, ethyl acetate and n-butanol. The hepatoprotective studies of each fraction from the methanol extract of E. grijisii was conducted in Wistar albino rats with CC14-induced liver damage. Hepatoprotective activity was evaluated in terms of the modification of serum transaminase values such as SGOT and SGPT, and histopathological changes of liver biopsy. The results indicated that the main hepatoprotective component was concentrated in n-butanol and aqueous fractions.


Author(s):  
Sarita M Kapgate ◽  
Abhijit B Patil

Objective: The objective of the study to standardize the model of hepatotoxicity induced by ATT drugs in Wistar Albino rats. Isoniazid (INH), rifampicin (RMP), pyrazinamide (PZA), the first line drugs used in the treatment of tuberculosis (TB) associated with the potential adverse effect. Numerous animal studies were reported endeavoring induction and cure of anti-TB (ATT) drug-induced hepatotoxicity using herbal and chemical drugs. However, the previous reported study failed to replicate where Wistar albino rats were treated with INH, RMP, and PZA and had shown the significant development of liver injury. Hence in present paper, aimed to develop a standardize model of induction of hepatotoxicity with ATT drugs.Methods: Wistar rats were treated with ATT drugs in combination in various doses up to 4-8 weeks. Total nine experiments were conducted to achieve successful hepatotoxicity. The aspartate aminotransferase (AST), alanine aminotransferase (ALT), and alkaline phosphatase (ALP) were the biochemical parameters of assessment. Histopathological changes in the liver were also examined.Results: No evidence of any liver injury or an inflammatory infiltrate has been observed as had been reported in the previous studies. Rather decrease in serum ALT levels has been observed by researcher. In short, hepatic injury cannot be developed with the doses used in previous reported papers. The successful attempt to induce hepatotoxicity can be achieved with the doses of INH - 100, RMP - 300, PZA - 700 mg/kg. The findings were confirmed by the raised ALT, AST, and ALP levels compared with baseline. The histopathological changes also support the findings.Conclusion: The dose of INH - 100, RMP – 300 and PZM - 700 mg/kg. Succeeds to induce hepatotoxicity in Wistar albino rats and Swiss albino mice as well.


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