نتایج جستجو برای: rat dna

تعداد نتایج: 768885  

Journal: :Dicle Medical Journal 2022

Objective: It was aimed to investigate the antigenotoxic effect of Ganoderma lucidum against damage caused by lipopolysaccharide (LPS) in rat bone marrow cells micronucleus test and comet analysis.
 Method: In experiment, 28 Wistar albino female rats were used 4 groups formed. Only physiological saline applied control group. A single dose 7.5 mg/kg LPS administered intraperitoneally LPS+ (...

Journal: :Acta medicinae Okayama 1967
K Inaba

The contents of nucleic acids in rat liver and hepatoma mitochondria and the physico-chemical properties on DNA’s isolated from these mitochondria were comparatively investigated. The results are briefly summarized as follows. 1. The contents of DNA and RNA per mg protein of the hepatoma cell mitochondria were about 10 and 2 to 4 times higher than those of rat liver mitochondria, respectively. ...

Journal: :Nanomaterials 2021

Several reports on amorphous silica nanomaterial (aSiO2 NM) toxicity have been questioning their safety. Herein, we investigated the in vivo pulmonary of four variants aSiO2 NM: SiO2_15_Unmod, SiO2_15_Amino, SiO2_7 and SiO2_40. We focused alterations lung DNA protein integrity, gene expression following single intratracheal instillation rats. Additionally, a short-term inhalation study (STIS) w...

2009
Christopher A. Hamm Hehuang Xie Fabricio F. Costa Elio F. Vanin Elisabeth A. Seftor Simone T. Sredni Jared Bischof Deli Wang Maria F. Bonaldo Mary J. C. Hendrix Marcelo B. Soares

Abnormal patterns of DNA methylation are observed in several types of human cancer. While localized DNA methylation of CpG islands has been associated with gene silencing, the effect that genome-wide loss of methylation has on tumorigenesis is not completely known. To examine its effect on tumorigenesis, we induced DNA demethylation in a rat model of human chondrosarcoma using 5-aza-2-deoxycyti...

Journal: :American Journal of Molecular Biology 2023

Cerebral dopamine neurotrophic factor (CDNF) and mesencephalic astrocyte-derived (MANF) are involved in neuroprotection mitigating endoplasmic reticulum (ER) stress the brain peripheral organs. In earlier work, an increase histone acetylation, following treatment with epigenetic modulator, valproic acid, was associated induction of CDNF MANF cultured cells rat brain. These findings prompted inv...

2006

We have previously reported that 7,12-dimethylbenz(a)an thracene (DMBA), given i.v. 24 hr after partial hepatectomy when DNA replication is maximal, binds tightly to DNA, inhibits its synthesis, and induces neoplastic changes in regenerating rat liver. We now report that DMBA injected i.v. 5 hr after partial hepatectomy (i.e., during the early prereplicative phase) inhibits DNA synthesis for at...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه محقق اردبیلی - دانشکده علوم 1389

در این مطالعه، اثرات سیستم کانابینوئیدی و سیستم گابائرژیک و نیز تداخل این دو سیستم در ناحیه قشر جلوی پیشانی رت ها در مدل رفتاری اضطراب (elevated plus-maze) ارزیابی گردید. تزریق یک طرفه دوزهای مختلف آگونیست اختصاصی گیرنده cb1 win55212-2,( µg/rat4 ،2، 5/0) در ناحیه قشر پیش پیشانی، درصد زمان ورود به بازوی باز ( (%oatو دفعات ورود به بازوی باز %oae)) را کاهش داد که نشان دهنده افزایش رفتار های شبه اض...

2006

We have previously reported that 7,12-dimethylbenz(a)an thracene (DMBA), given i.v. 24 hr after partial hepatectomy when DNA replication is maximal, binds tightly to DNA, inhibits its synthesis, and induces neoplastic changes in regenerating rat liver. We now report that DMBA injected i.v. 5 hr after partial hepatectomy (i.e., during the early prereplicative phase) inhibits DNA synthesis for at...

2006

We have previously reported that 7,12-dimethylbenz(a)an thracene (DMBA), given i.v. 24 hr after partial hepatectomy when DNA replication is maximal, binds tightly to DNA, inhibits its synthesis, and induces neoplastic changes in regenerating rat liver. We now report that DMBA injected i.v. 5 hr after partial hepatectomy (i.e., during the early prereplicative phase) inhibits DNA synthesis for at...

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