Bacterial nanocellulose (BNC) is an attractive green-synthesized biomaterial for biomedical applications and various other applications. However, effective engineering of BNC production has been limited by our poor knowledge of the related metabolic processes. In contrast to the traditional perception that genome critically determines biosynthesis behaviors, here we discover that the glucose metabolism could also drastically affect the BNC synthesis in .
View Article and Find Full Text PDFMicrobiol Resour Announc
August 2023
A complete genome is presented for Microbacterium proteolyticum ustc, a member of the Gram-positive order of the phylum that is resistant to high concentrations of heavy metals and participates in metal detoxification. The genome consists of one plasmid and one chromosome.
View Article and Find Full Text PDFCyclooxygenase-2 (COX-2) is an inducible enzyme stimulated by various inflammatory factors (IFs). Chronic gastritis is a classic model of "inflammation-cancer transformation" and -related gastric diseases (HPGD) are specific ones of this model. Traditional Chinese Medicine (TCM) syndromes could play a predictive role in gastric histopathological evolution.
View Article and Find Full Text PDFWorld J Gastroenterol
March 2015
Aim: To assess the efficacy of immunotherapy with expanded activated autologous lymphocytes (EAALs) in gastric cancer.
Methods: An observational study was designed to retrospectively analyze the clinical data of 84 gastric cancer patients, of whom 42 were treated by EAAL immunotherapy plus conventional treatment and another 42 only received conventional treatment (control group). EAALs were obtained by proliferation of peripheral blood mononuclear cells from patients followed by phenotype determination.
Lung cancer is a heterogeneous and complex disease that remains the leading cause of cancer-related mortality worldwide. The identification of epidermal growth factor receptor (EGFR) mutation and anaplastic lymphoma kinase (ALK) rearrangements has changed the treatment of non-small cell lung cancer, creating a personalized treatment era that is based on the appropriate molecular selection of patients. In spite of the efficacy of tyrosine kinase inhibitors (TKIs), acquired resistance remains inevitable due to various mechanisms.
View Article and Find Full Text PDFTo investigate the long-term trends and variations of the levels, compositions, size distribution and sources of particulate matter (PM), long-term monitoring campaigns of PM10 and PM2.5 were performed in a megacity in China (Chengdu) during the period from 2009 to 2011. The average concentration of PM10 was 172.
View Article and Find Full Text PDFTest weight is an important trait in maize breeding. Understanding the genetic mechanism of test weight is important for effective selection of maize test weight improvement. In this study, quantitative trait loci (QTL) for maize test weight were identified.
View Article and Find Full Text PDFUnderstanding the inheritance of resistance to Fusarium ear rot is a basic prerequisite for an efficient resistance breeding in maize. In this study, 250 recombinant inbred lines (RILs) along with their resistant (BT-1) and susceptible (N6) parents were planted in Zhengzhou with three replications in 2007 and 2008. Each line was artificially inoculated using the nail-punch method.
View Article and Find Full Text PDFZhongguo Yi Xue Ke Xue Yuan Xue Bao
August 2010
Objective: To evaluate the efficacy and safety of bevacizumab plus capecitabine in treating metastatic colorectal cancer(mCRC).
Methods: Eleven patients with mCRC (6 females and 5 males) were enrolled in this study. Bevacizumab was given with 5 mg/kg every two weeks in five patients, 10 mg/kg every two weeks in four patients and 15 mg/kg every three weeks in two patients.
Background: bevacizumab is a humanized recombinant vascular endothelial growth factor (VEGF) monoclonal antibody, which specifically binds to VEGF and inhibits tumor cell growth, proliferation and metastasis. We aimed to investigate the safety and pharmacokinetics of bevacizumab in Chinese patients with advanced cancer.
Methods: Thirty-nine Chinese patients with metastatic or relapsed cancers who failed prior therapy were enrolled in this phase I study of bevacizumab.
Mutations in tumor-suppressor gene BARD1 have been found in inherited and spontaneous breast, ovarian and uterine cancers. BARD1 plays a critical role in DNA repair and ubiquitination as binding partner of BRCA1, with which it colocalizes to nuclear dots. Independently of BRCA1, BARD1 can induce p53-dependent apoptosis in response to genotoxic stress.
View Article and Find Full Text PDFThe BRCA1-associated RING domain protein BARD1 acts with BRCA1 in double-strand break repair and ubiquitination. BARD1 plays a role as mediator of apoptosis by binding to and stabilizing p53, and BARD1-repressed cells are resistant to apoptosis. We therefore investigated the mechanism by which BARD1 induces p53 stability and apoptosis.
View Article and Find Full Text PDFMaize dwarf mosaic is one of the devastating and widespread viral diseases in the world. So far, only a few genes were identified and mapped in the resistant materials. A new resistant elite inbred line Siyi was identified with resistance to maize dwarf mosaic virus strain B at early and adult stage.
View Article and Find Full Text PDF