Haiyan Feng

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We investigated the transcription levels, promoter methylation status and role as a tumor suppressor gene (TSG) of the cadherin CDH4 in nasopharyngeal carcinoma (NPC). The expression of CDH4 was decreased in NPC cell lines, xenografts and primary tumor biopsies. Promoter hypermethylation of CDH4 was detected in all five NPC cell lines, both NPC xenograft(More)
Insulin resistance (IR) increases with age and plays a key role in the pathogenesis of type 2 diabetes mellitus. Oxidative stress and mitochondrial dysfunction are supposed to be major factors leading to age-related IR. Genipin, an extract from Gardenia jasminoides Ellis fruit, has been reported to stimulate insulin secretion in pancreatic islet cells by(More)
A polymerized film of 3,5-dihydroxy benzoic acid (DBA) was prepared on the surface of a glassy carbon electrode (GCE) in neutral solution by cyclic voltammetry (CV). The poly(DBA) film-coated GCE exhibited excellent electrocatalytic activity toward the oxidation of dopamine (DA). A linear range of 1.0 x 10(-7) to 1.0 x 10(-4)M and a detection limit of 6.0 x(More)
A new video coding method is presented in this paper, which has been applied to the remote microscope monitoring system (RMMS). Using a criterion deduced from DCT (Discrete Cosine Transform) and quantization formulas and a criterion gotten by researching the characteristic of DCT coefficients distribution and experiment results, the method can detect(More)
In this paper, a pot experiment with three compartments was installed to study the effect of Na-phytate on the development and metabolic activity of AM fungi. Maize was selected as host plant and inoculated with arbuscular mycorrhizal fungus (Glomus intraradices), and different amounts of Na-phytate were applied into hyphal compartments. The results showed(More)
OBJECTIVE The diversity of culturable bacteria in the six frozen soils from High-latitude area and High-altitude area were analyzed by using culture-dependent approaches. METHODS Three solidified media were used to isolate culturable bacteria. Bacterial 16S rRNA genes of the isolates were PCR amplified using bacteria-universal primers, and then were(More)
Unipolar orthogonal frequency division multiplexing (U-OFDM) dimming control has been introduced for indoor visible light communication (VLC) systems, which demonstrates significant BER performance and power efficiency advantages over direct-current biased orthogonal frequency division multiplexing (DCO-OFDM) at the expense of half the spectral efficiency.(More)
p53 tumor-suppressor gene is a master transcription factor which controls cell cycle progression and apoptosis. killin was discovered as one of the p53 target genes implicated in S-phase control coupled to cell death. Due to its extreme proximity to pten tumor-suppressor gene on human chromosome 10, changes in epigenetic modification of killin have also(More)
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