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Hypercholesterolemia, which is closely related to gallbladder bile stasis, can cause sphincter of Oddi dysfunction (SOD) by increasing the tension of sphincter of Oddi (SO). Intracellular calcium ion concentration ((Ca 2+ ) i ) could influence the tension of SO. The β1 subunit of the...
The structural gene for glutamine synthetase, glnA , from Amycolatopsis mediterranei U32 was cloned via screening a genomic library using the analog gene from Streptomyces coelicolor . The clone was functionally verified by complementing for glutamine requirement of an Escherichia coli glnA null...
Tracking the distribution and differentiation of stem cells by high-resolution imaging techniques would have significant clinical and research implications. In this study, a model cell-penetrating peptide was used to carry gadolinium particles for magnetic resonance imaging (MRI) of mesenchymal...
The genetic requirements for the transcription of glnA , encoding the major glutamine synthetase in a rifamycin SV-producing Amycolatopsis mediterranei strain, U32, were investigated. Primer extension experiments showed that the promoter of U32 glnA (pglnA) was likely to have two transcription...
MM-3 was a live vaccine strain candidate for protecting neonatal piglets from diarrhea. Designed in the 1980s, a high degree of protection from colibacillosis was afforded to piglets in a challenge study and field trials. However MM-3 had a drawback of carrying the antibiotic resistance gene...
Efficient massive mapping algorithm (EMMA), an algorithm on efficiently mapping massive cDNAs onto genomic sequences, has recently been developed. The process of mapping massive cDNAs onto genomic sequences has been improved using more approximate mapping filtering based on an enhanced suffix...
cDNA microarray is a powerful tool to analyze simultaneously the expression levels of tens of thousands of genes. Compared with normal nasopharynx (NP) tissues, 2210 genes were highly differentially expressed in nasopharyngeal carcinoma (NPC) tissues detected by cDNA microarray. Since signal...
To investigate the effect of DPC4 gene on invasion and metastasis of colorectal carcinoma cells, the expression of DPC4 was detected in sixty-three samples of colorectal tumors and seven cases of colorectal mucosa. The biological behavior of tumors expressing DPC4 was evaluated (including tumor...
Tobacco smoking is an important risk factor for the development of severe periodontitis. Recently, we showed that nicotine affected mineralized nodule formation, and that nicotine and lipopolysaccharide stimulated the formation of osteoclast-like cells by increasing production of macrophage...
Rhinovirus infection of the lower airways is now a recognized disease, associated with bronchiolitis and asthma. The bronchial epithelial cells are the host cells when rhinovirus infection occurs in the airway. It was hypothesized that a pro-fibrotic growth factor response may occur in these...
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