Publications by authors named "Songli Xu"

Objective: Linkage to HIV medical care is important in the continuum of HIV care and health outcomes for people with HIV. The objective of this analysis was to identify how the community-based organization (CBO) program contributes to linkage to HIV medical care among people with newly diagnosed HIV in the Centers for Disease Control and Prevention's (CDC's) HIV testing program.

Methods: We analyzed HIV linkage-to-care data submitted to CDC from 2019 through 2021.

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The purpose of this analysis is to describe HIV tests and associated outcomes for Asian people reached by the Centers for Disease Control and Prevention (CDC) HIV testing program. We analyzed CDC-funded HIV tests among Asian individuals in the United States, Puerto Rico, and the U.S.

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Objective: An estimated 1 in 5 American Indian and Alaska Native (AI/AN) adults living with HIV are unaware of their status. We investigated HIV testing among AI/AN people receiving a Centers for Disease Control and Prevention (CDC)-funded test from 2014 through 2020.

Methods: We analyzed data on CDC-funded HIV tests reported by health departments and community-based organizations in the United States.

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Context: HIV testing is a critically important first step in preventing and reducing HIV transmission. Community-based organizations (CBOs) are uniquely positioned to provide HIV testing and other prevention services to populations disproportionately affected by HIV infection.

Objective: The purpose of this analysis was to assess CDC-funded health department (HD) and CBO testing programs during 2012-2017, including the number of tests and HIV positivity.

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Article Synopsis
  • - The report examines the demographic, clinical, and epidemiologic features of 544 individuals in the U.S. who were suspected of having COVID-19 during its early stages from January 17 to February 29, 2020, highlighting how the pandemic quickly evolved.
  • - The CDC consulted with public health officials to conduct testing, and out of the 544 persons under investigation (PUI), 36 tested positive for SARS-CoV-2, with notable differences in travel history before and after February 12, 2020.
  • - The findings emphasize the importance of preparedness for future pandemics, specifically the need for rapid testing and broad surveillance strategies to track community transmission, including cases that may not show symptoms. *
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Reducing HIV among men who have sex with men (MSM) is a national goal, and early diagnosis, timely linkage to HIV medical care, and ongoing care and treatment are critical for improving health outcomes for MSM with HIV and preventing transmission to others. We assessed demographic, social, and economic factors associated with HIV antiretroviral treatment among HIV-infected MSM. Data are from the National HIV Behavioral Surveillance (NHBS) collected in 2014 among MSM.

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Identifying HIV-infected persons who are unaware of their human immunodeficiency virus (HIV) infection status, linking them to care, and reducing health disparities are important national HIV prevention goals (1). Gay, bisexual, and other men who have sex with men (collectively referred to as MSM) accounted for 70% of HIV infection diagnoses in the United States in 2016, despite representing only 2% of the population (2,3). African American or black (black) MSM accounted for 38% of all new diagnoses of HIV infection among MSM (2).

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Diagnoses of human immunodeficiency virus (HIV) infection among women declined 17% during 2011-2015, and a total of 7,498 women received a diagnosis of HIV infection in 2015 (1). Although black or African American (black) women accounted for only 12% of the U.S.

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Background: In the United States (US), foreign-born persons are disproportionately affected by HIV and differ epidemiologically from US-born persons with diagnosed HIV infection. Understanding HIV transmission dynamics among foreign-born persons is important to guide HIV prevention efforts for these populations. We conducted molecular transmission network analysis to describe HIV transmission dynamics among foreign-born persons with diagnosed HIV.

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Objectives: To describe the extent to which Centers for Disease Control and Prevention (CDC)-funded HIV testing in nonhealthcare facilities reaches adolescent MSM, identifies new HIV infections, and links those newly diagnosed to medical care.

Methods/design: We describe HIV testing, newly diagnosed positivity, and linkage to medical care for adolescent MSM who received a CDC-funded HIV test in a nonhealthcare facility in 2015. We assess outcomes by race/ethnicity, HIV-related risk behaviors, and US geographical region.

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Nitrogen nutrients and nickel(Ni) are ubiquitous in aquatic environments, and they are important for primary production of ocean ecosystem. This study examined the interaction of nitrogen nutrients (specifically urea and nitrate) and Ni on chlorophyll (Chl a) concentration and photosynthesis parameters values of Prorocentrum donghaiense and Skeletonema costatum. The data presented here indicate that low concentration of Ni for P.

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Though clinicians can predict which patients are at risk for developing metastases, traditional therapies often prove ineffective and metastatic disease is the primary cause of cancer patient death; therefore, there is a need to develop anti-metastatic therapies that can be administered over long durations to specifically inhibit the motility of cancer cells. Withaniasomnifera root extracts (WRE) have anti-proliferative activity and the active component, Withaferin A, inhibits the pro-metastatic protein, vimentin. Vimentin is an intermediate filament protein and is part of the epithelial to mesenchymal transition (EMT) program to promote metastasis.

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The nuclear pore complex (NPC), assembled from ∼30 proteins termed nucleoporins (Nups), mediates selective nucleocytoplasmic trafficking. A subset of nucleoporins bear a domain with multiple phenylalanine-glycine (FG) motifs. As binding sites for transport receptors, FG Nups are critical in translocation through the NPC.

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Chromosomal translocations involving the Nup98 gene are implicated in leukemias, especially acute myelogenous leukemia. These translocations generate chimeric fusion proteins, all of which have in common the N-terminal half of Nup98, which contains the nucleoporin FG/GLFG repeat motifs. The homeodomain group of Nup98 fusion proteins retain the C-terminus of a homeodomain transcription factor, including the homeobox responsible for DNA binding.

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Nucleocytoplasmic trafficking of macromolecules, a highly specific and tightly regulated process, occurs exclusively through the nuclear pore complex. This immense structure is assembled from approximately 30 proteins, termed nucleoporins. Here we discuss the four nucleoporins that have been linked to cancers, either through elevated expression in tumors (Nup88) or through involvement in chromosomal translocations that encode chimeric fusion proteins (Tpr, Nup98, Nup214).

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The vertebrate nuclear pore is an enormous structure that spans the double membrane of the nuclear envelope. In yeast, most nucleoporins are found symmetrically on both the nuclear and cytoplasmic sides of the structure. However, in vertebrates most nucleoporins have been localized exclusively to one side of the nuclear pore.

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Nup98 is a component of the nuclear pore that plays its primary role in the export of RNAs. Nup98 is expressed in two forms, derived from alternate mRNA splicing. Both forms are processed into two peptides through autoproteolysis mediated by the C-terminal domain of hNup98.

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The p58(PITSLRE) is a p34(cdc2)-related protein kinase that plays an important role in normal cell cycle progression. Elevated expression of p58(PITSLRE) in eukaryotic cells prevents them from undergoing normal cytokinesis and appears to delay them in late telophase. To investigate the molecular mechanism of p58(PITSLRE) action, we used the yeast two-hybrid system, screened a human fetal liver cDNA library, and identified cyclin D3 as an interacting partner of p58(PITSLRE).

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