نتایج جستجو برای: ber

تعداد نتایج: 14944  

2011
Vikas Chauhan Manoj Arora R. S. Chauhan

This project studies and identifies the PSK-based digital modulation scheme (BPSK, QPSK or GMSK) that gives the best BER performance in a multipath fading environment using computer simulation (MATLAB). Each PSK-based digital modulation are modeled and simulated under different channel conditions. Subsequently, a comparison study is carried out to obtain the BER performance for each PSK-based t...

Journal: :Asian Pacific journal of cancer prevention : APJCP 2014
Zhi-Bo Hou Kai-Jin Lu Xiao-Li Wu Cong Chen Xin-En Huang Hai-Tao Yin

PURPOSE Lung cancer, one of the most frequently diagnosed cancers in the world, is characterized by relatively high morbidity and mortality. Berbamine (BER) has been initially reported to exert anti-proliferative effects against a series of cancers. METHODS In this study the in vitro cytotoxicity of BER was measured by MTT assay. In vivo anti-cancer efficacy of BER was assessed in A549 xenogr...

Journal: :Oncology reports 2014
Xiang Li Shu-Juan Zhao Hai-Lian Shi Shui-Ping Qiu Jian-Qun Xie Hui Wu Bei-Bei Zhang Zheng-Tao Wang Jian-Ye Yuan Xiao-Jun Wu

Breast cancer, the leading cause of cancer-related mortality worldwide in females, has high metastastic and recurrence rates. The aim of the present study was to evaluate the anti-metastatic and anticancer in situ effect of berberine hydrochloride (BER) in MDA-MB-231 cells. BER dose-dependently inhibited proliferation and the IL-8 secretion of MDA-MB-231 cells. Additional experiments revealed t...

2014
Fei Gao Ying Gao Yang-feng Liu Li Wang Ya-jun Li

Though new antiepileptic drugs are emerging, approximately a third of epileptic patients still suffer from recurrent convulsions and cognitive dysfunction. Therefore, we tested whether berberine (Ber), a vegetable drug, has an anticonvulsant property and attenuates memory impairment in a pilocarpine (Pilo)-induced epilepsy model in rats. The rats were injected with 400 mg/kg Pilo to induce conv...

2016
Chandra Rao

Inter Carrier Efficient Method for falling ICI in OFDM Systems Interference (ICI) attributable to the Carrier Frequency Offset (CFO) and Doppler shifts; highly disgrace the performance of OFDM system. For OFDM communication system which is a capable technique for high data rate transmission, the theoretical BER and CIR are complicated to obtain in presence of ICI. The BER of the expected signal...

Journal: :Mutagenesis 2010
Megan J Osmond Bernard A Kunz Elizabeth T Snow

Arsenic (As) induces DNA-damaging reactive oxygen species. Most oxidative DNA damage is countered by base excision repair (BER), the capacity for which may be reduced in older animals. We examined whether age and consumption of As in lactational milk or drinking water influences BER gene transcript levels in mice. Lactating mothers and 24-week-old mice were exposed (24 h or 2 weeks) to As (2 or...

Journal: :Drug metabolism and disposition: the biological fate of chemicals 2006
Feng Zuo Norio Nakamura Teruaki Akao Masao Hattori

Berberine (Ber) and its main metabolites were identified and quantified using liquid chromatography/electrospray ionization/ion trap mass spectrometry. Rat plasma contained the main metabolites, berberrubine, thalifendine, demethyleneberberine, and jatrorrhizine, as free and glucuronide conjugates after p.o. Ber administration. Moreover, the original drug, the four main metabolites, and their g...

2013
Anbarasi Kothandapani Akshada Sawant Venkata Srinivas Mohan Nimai Dangeti Robert W. Sobol Steve M. Patrick

Base excision repair (BER) and mismatch repair (MMR) pathways play an important role in modulating cis-Diamminedichloroplatinum (II) (cisplatin) cytotoxicity. In this article, we identified a novel mechanistic role of both BER and MMR pathways in mediating cellular responses to cisplatin treatment. Cells defective in BER or MMR display a cisplatin-resistant phenotype. Targeting both BER and MMR...

2012
Imran Ullah Khan Tan Chong Eng

The aim of this study was to investigate the performance enhancement of dual relay cooperative wireless network by using Amplify and Forward (AF) relaying protocol in Rician fading channel with different Kfactors. The bit error rate (BER) and BER gain by using AF scenario in Rician fading channel are derived. The results obtained from the proposed models are compared to AF scenario in Rayleigh ...

2012
Xiuxiu Lv Xiaohui Yu Yiyang Wang Faqiang Wang Hongmei Li Yanping Wang Daxiang Lu Renbin Qi Huadong Wang

Cardiomyocyte apoptosis is an important event in doxorubicin (DOX)-induced cardiac injury. The aim of the present study was to investigate the protection of berberine (Ber) against DOX- triggered cardiomyocyte apoptosis in neonatal rat cardiomyocytes and rats. In neonatal rat cardiomyocytes, Ber attenuated DOX-induced cellular injury and apoptosis in a dose-dependent manner. However, Ber has no...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید