Zhi Zhang

Opportunistic Scheduling for OFDM Systems with Fairness Constraints (2008)

Zhi Zhang, Ying He

We consider the problem of downlink scheduling for multiuser orthogonal frequency-division multiplexing (OFDM) systems. Opportunistic scheduling exploits the time-varying, location-dependent channel...

Synthesis and nuclear magnetic resonance shielding effect of three triazine-linked porphyrin compounds (2007)

Wang,Kai, Fu,Shi-Tao, Zhang,Zhi, Li,Zao-Ying

Three porphyrin compounds, monomer Por I, dimer Por II and trimer Por III have been synthesized from the reaction of cyanuric chloride, 5-(4-hydroxyphenyl)-10,15,20-triphenyl porphyrin and...

TGF-β1 induces human alveolar epithelial to mesenchymal cell transition (EMT) (2005)

Kasai, Hidenori, Allen, Jeremy T, Mason, Roger M, Kamimura, Takashi, Zhang, Zhi

Abstract Background Fibroblastic foci are characteristic features in lung parenchyma of patients with idiopathic pulmonary fibrosis (IPF). They comprise aggregates of mesenchymal cells which underlie...

Comparison of Chinese Field Strains of Avian Leukosis Subgroup J Viruses with Prototype Strain HPRS-103 and United States Strains (2003)

Zhizhong Cui, Yan Du, Zhi Zhang, R. F. Silva

SUMMARY. Eight Chinese field strains of subgroup J avian leukosis viruses (ALV-J) were isolated from broilers or parent stocks during January 1999 to April 2001. One strain, SD9902, was an acute...

Probeselect : selecting optimal DNA oligos for microarrays / (2002)

Zhang, Zhi.

Thesis (M.S.)--Washington University, 2002. Dept. of Computer Science.

Shigella Infection in a SCID Mouse-Human Intestinal Xenograft Model: Role for Neutrophils in Containing Bacterial Dissemination in Human Intestine

Zhang, Zhi, Jin, Lingling, Champion, Gretchen, Seydel, Karl B., Stanley, Samuel L.

Shigellae infect human intestine and cause intense inflammation and destruction of colonic and rectal mucosa. To model the interactions of shigella with human intestine in vivo, we have studied...

Amebic Infection in the Human Colon Induces Cyclooxygenase-2

Stenson, William F., Zhang, Zhi, Riehl, Terrence, Stanley, Samuel L.

We sought to determine if infection of the colon with Entamoeba histolytica induces the expression of cyclooxygenase-2 and, if it does, to determine the contribution of prostaglandins produced...

A Monoclonal Antibody to the Amebic Lipophosphoglycan-Proteophosphoglycan Antigens Can Prevent Disease in Human Intestinal Xenografts Infected with Entamoeba histolytica

Zhang, Zhi, Duchêne, Michael, Stanley, Samuel L.

Entamoeba histolytica trophozoites are covered by lipophosphoglycan-peptidoglycan molecules which may be key virulence factors. We found that pretreatment of severe combined immunodeficient mice...

Tumor Necrosis Factor Alpha Is a Key Mediator of Gut Inflammation Seen in Amebic Colitis in Human Intestine in the SCID Mouse-Human Intestinal Xenograft Model of Disease

Zhang, Zhi, Mahajan, Sajan, Zhang, Xiaochung, Stanley, Samuel L.

We used Entamoeba histolytica infection in human intestinal xenografts to study the roles interleukin-1 (IL-1) and tumor necrosis factor alpha (TNF-α) in the pathogenesis of amebic colitis. We found...

Expression of Amoebapores Is Required for Full Expression of Entamoeba histolytica Virulence in Amebic Liver Abscess but Is Not Necessary for the Induction of Inflammation or Tissue Damage in Amebic Colitis

Zhang, Xiaochun, Zhang, Zhi, Alexander, Diane, Bracha, Rivka, Mirelman, David, Stanley, Samuel L.

Entamoeba histolytica trophozoites produce amoebapores, a family of small amphipathic peptides capable of insertion into bacterial or eukaryotic membranes and causing cellular lysis. Recently, E....

Bcl-2 Homodimerization Involves Two Distinct Binding Surfaces, a Topographic Arrangement That Provides an Effective Mechanism for Bcl-2 to Capture Activated Bax*

Zhang, Zhi, Lapolla, Suzanne M., Annis, Matthew G., Truscott, Mary, Roberts, G. Jane, Miao, Yiwei, ...

The homo- and heterodimerization of Bcl-2 family proteins is important for transduction and integration of apoptotic signals and control of the permeability of mitochondria and endoplasmic reticulum...

Membrane Topography and Topogenesis of Prenylated Rab Acceptor (PRA1)*

Lin, Jialing, Liang, Zhimin, Zhang, Zhi, Li, Guangpu

The mouse prenylated Rab acceptor (mPRA1) is associated with the Golgi membrane at steady state and interacts with Rab proteins. It contains two internal hydrophobic domains (34 residues each) that...

Identification of a family of Bsp-A like surface proteins of Entamoeba histolytica with novel leucine rich repeats.

Davis, Paul H., Zhang, Zhi, Chen, Minghe, Zhang, Xiaochun, Chakraborty, Subhra, Stanley, Samuel L.

Leucine rich repeats serve as recognition motifs for surface proteins from bacteria and eukaryotes. The BspA protein from Bacteroides forsythus mediates bacterial binding to fibronectin and contains...

Shigella Infection in a SCID Mouse-Human Intestinal Xenograft Model: Role for Neutrophils in Containing Bacterial Dissemination in Human Intestine

Zhang, Zhi, Jin, Lingling, Champion, Gretchen, Seydel, Karl B., Stanley, Samuel L.

Shigellae infect human intestine and cause intense inflammation and destruction of colonic and rectal mucosa. To model the interactions of shigella with human intestine in vivo, we have studied...

Amebic Infection in the Human Colon Induces Cyclooxygenase-2

Stenson, William F., Zhang, Zhi, Riehl, Terrence, Stanley, Samuel L.

We sought to determine if infection of the colon with Entamoeba histolytica induces the expression of cyclooxygenase-2 and, if it does, to determine the contribution of prostaglandins produced...

A Monoclonal Antibody to the Amebic Lipophosphoglycan-Proteophosphoglycan Antigens Can Prevent Disease in Human Intestinal Xenografts Infected with Entamoeba histolytica

Zhang, Zhi, Duchêne, Michael, Stanley, Samuel L.

Entamoeba histolytica trophozoites are covered by lipophosphoglycan-peptidoglycan molecules which may be key virulence factors. We found that pretreatment of severe combined immunodeficient mice...

Tumor Necrosis Factor Alpha Is a Key Mediator of Gut Inflammation Seen in Amebic Colitis in Human Intestine in the SCID Mouse-Human Intestinal Xenograft Model of Disease

Zhang, Zhi, Mahajan, Sajan, Zhang, Xiaochung, Stanley, Samuel L.

We used Entamoeba histolytica infection in human intestinal xenografts to study the roles interleukin-1 (IL-1) and tumor necrosis factor alpha (TNF-α) in the pathogenesis of amebic colitis. We found...

Expression of Amoebapores Is Required for Full Expression of Entamoeba histolytica Virulence in Amebic Liver Abscess but Is Not Necessary for the Induction of Inflammation or Tissue Damage in Amebic Colitis

Zhang, Xiaochun, Zhang, Zhi, Alexander, Diane, Bracha, Rivka, Mirelman, David, Stanley, Samuel L.

Entamoeba histolytica trophozoites produce amoebapores, a family of small amphipathic peptides capable of insertion into bacterial or eukaryotic membranes and causing cellular lysis. Recently, E....

Widespread Adaptive Evolution of Drosophila Genes With Sex-Biased Expression

Pröschel, Matthias, Zhang, Zhi, Parsch, John

Many genes in higher eukaryotes show sexually dimorphic expression, and these genes tend to be among the most divergent between species. In most cases, however, it is not known whether this rapid...

Bcl-2 changes conformation to inhibit Bax oligomerization

Dlugosz, Paulina J, Billen, Lieven P, Annis, Matthew G, Zhu, Weijia, Zhang, Zhi, Lin, Jialing, ...

Bcl-2 inhibits apoptosis by regulating the release of cytochrome c and other proteins from mitochondria. Oligomerization of Bax promotes cell death by permeabilizing the outer mitochondrial membrane....

Prevalence of positive selection among nearly neutral amino acid replacements in Drosophila

Sawyer, Stanley A., Parsch, John, Zhang, Zhi, Hartl, Daniel L.

We have estimated the selective effects of amino acid replacements in natural populations by comparing levels of polymorphism in 91 genes in African populations of Drosophila melanogaster with their...

Virulent Shigella flexneri subverts the host innate immune response through manipulation of antimicrobial peptide gene expression

Sperandio, Brice, Regnault, Béatrice, Guo, Jianhua, Zhang, Zhi, Stanley, Samuel L., Sansonetti, Philippe J., ...

Antimicrobial factors are efficient defense components of the innate immunity, playing a crucial role in the intestinal homeostasis and protection against pathogens. In this study, we report that...