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San Diego, CA, United States

Phalanx Biotech Group was founded in 2003 as a result of collaboration between Taiwan's Industrial Technology Research Institute and several private companies and research institutes. It is a manufacturer of DNA microarrays and a provider of gene expression profiling services based in Hsinchu, Taiwan and in Belmont, California. The company sells its DNA microarrays under the registered trademark name OneArray.Phalanx Biotech Group is a member of the FDA-led Microarray Quality Control Project. Wikipedia.

Calixto A.,Columbia University | Ma C.,Columbia University | Ma C.,University of Santiago de Chile | Ma C.,Phalanx Biotech | Chalfie M.,Columbia University
Nature Methods | Year: 2010

We describe a method for conditional regulation of gene expression based on the processing of an intron cassette. The RNA processing factor MEC-8 is necessary for the function of the Caenorhabditis elegans touch receptor neurons; mec-8 mutants are touch insensitive. We show here that this insensitivity involves the loss of MEC-8-dependent splicing of mec-2, which encodes a component of the mechanosensory transduction complex. MEC-8 is needed to remove the ninth intron in mec-2 pre-mRNA to form the longest of three mRNAs, mec-2a. Without MEC-8, splicing causes the termination of the transcript. Inclusion of mec-2 intron 9 is sufficient to convey mec-8-dependent regulation on other genes and, in mec-8(u218ts) mutants, resulted in their temperature-dependent expression. Because mec-8 is expressed ubiquitously in embryos and extensively in larvae, this system should produce temperature-sensitive expression for most genes. As an example, we report a strain that exhibits temperature-dependent RNA interference. © 2010 Nature America, Inc. All rights reserved.

Ting H.-W.,Taipei Hospital | Ting H.-W.,Yuan Ze University | Chen M.-S.,Taipei Veterans General Hospital | Hsieh Y.-C.,Phalanx Biotech | Chan C.-L.,Yuan Ze University
Journal of the Chinese Medical Association | Year: 2010

Background: How to effectively use the finite resources of an intensive care unit (ICU) for neurosurgical patients is a critical decision-making process. Mortality prediction models are effective tools for allocating facilities. This study intended to distinguish the prediction power of the Acute Physiology and Chronic Health Evaluation II (APACHE II), the Simplified Acute Physiology Score II (SAPS II), and the Glasgow Coma Scale (GCS) for neurosurgical patients. Methods: According to the definitions of the APACHE II, this study recorded both APACHE II and SAPS II scores of 154 neurosurgical patients in the ICU of a 600-bed general hospital. Linear regression models of GCS (GCS-mr) were constructed. The t test, receiver operating characteristic (ROC) curve and Wilcoxon signed rank test were used as the statistical evaluation methods. Results: There were 50 (32.5%) females and 104 (67.5%) males in this study. Among them, 108 patients survived and 46 patients died. The areas under the ROC curves (AUC) of SAPS II and APACHE II were 0.872 and 0.846, respectively. The AUC of GCS-mr was 0.866, and the R2 was 0.389. The evaluation powers of SAPS II, GCS-mr and APACHE II were the same (p > 0.05). Patients with GCS ≤ 5 or motor component of GCS (GCS-M) ≤ 3 had a higher probability of mortality than patients with GCS > 5 or GCS-M > 3 (p < 0.01). Conclusion: The predictive powers of SAPS II, APACHE II and GCS-mr were the same. The GCS-mr is more convenient for predicting mortality in neurosurgical patients. Both GCS ≤ 5 and GCS-M ≤ 3 are good indicators of mortality in these patients. © 2010 Elsevier.

Closek C.J.,Pennsylvania State University | Closek C.J.,University of California at Merced | Sunagawa S.,Structural and Computational Biology Unit | Desalvo M.K.,Phalanx Biotech | And 9 more authors.
ISME Journal | Year: 2014

Coral diseases impact reefs globally. Although we continue to describe diseases, little is known about the etiology or progression of even the most common cases. To examine a spectrum of coral health and determine factors of disease progression we examined Orbicella faveolata exhibiting signs of Yellow Band Disease (YBD), a widespread condition in the Caribbean. We used a novel combined approach to assess three members of the coral holobiont: the coral-host, associated Symbiodinium algae, and bacteria. We profiled three conditions: (1) healthy-appearing colonies (HH), (2) healthy-appearing tissue on diseased colonies (HD), and (3) diseased lesion (DD). Restriction fragment length polymorphism analysis revealed health state-specific diversity in Symbiodinium clade associations. 16S ribosomal RNA gene microarrays (PhyloChips) and O. faveolata complimentary DNA microarrays revealed the bacterial community structure and host transcriptional response, respectively. A distinct bacterial community structure marked each health state. Diseased samples were associated with two to three times more bacterial diversity. HD samples had the highest bacterial richness, which included components associated with HH and DD, as well as additional unique families. The host transcriptome under YBD revealed a reduced cellular expression of defense- and metabolism-related processes, while the neighboring HD condition exhibited an intermediate expression profile. Although HD tissue appeared visibly healthy, the microbial communities and gene expression profiles were distinct. HD should be regarded as an additional (intermediate) state of disease, which is important for understanding the progression of YBD. © 2014 International Society for Microbial Ecology. All rights reserved.

Xu H.,University of Connecticut Health Center | Sobue T.,University of Connecticut Health Center | Thompson A.,University of Connecticut Health Center | Xie Z.,University of Connecticut Health Center | And 5 more authors.
Cellular Microbiology | Year: 2014

Summary: Mitis-group streptococci are ubiquitous oral commensals that can promote polybacterial biofilm virulence. Using a novel murine oral mucosal co-infection model we sought to determine for the first time whether these organisms promote the virulence of C.albicans mucosal biofilms in oropharyngeal infection and explored mechanisms of pathogenic synergy. We found that Streptococcus oralis colonization of the oral and gastrointestinal tract was augmented in the presence of C.albicans. S.oralis and C.albicans co-infection significantly augmented the frequency and size of oral thrush lesions. Importantly, S.oralis promoted deep organ dissemination of C.albicans. Whole mouse genome tongue microarray analysis showed that when compared with animals infected with one organism, the doubly infected animals had genes in the major categories of neutrophilic response/chemotaxis/inflammation significantly upregulated, indicative of an exaggerated inflammatory response. This response was dependent on TLR2 signalling since oral lesions, transcription of pro-inflammatory genes and neutrophil infiltration, were attenuated in TLR2-/- animals. Furthermore, S.oralis activated neutrophils in a TLR2-dependent manner in vitro. In summary, this study identifies a previously unrecognized pathogenic synergy between oral commensal bacteriaand C.albicans. This is the first report of the ability of mucosal commensal bacteria to modify the virulence of an opportunistic fungal pathogen. © 2013 John Wiley & Sons Ltd.

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