Blood-brain barrier remodeling in an organ-on-a-chip device shows Dkk1 to be a regulator of early metastasis.

Brain metastases are the most lethal progression event, in part because the biological processes underpinning brain metastases are poorly understood. There is a paucity of realistic models of metastasis, as current murine models are slow to manifest metastasis. We set out to delineate metabolic and secretory modulators of brain metastases by utilizing two models consisting of microfluidic devices: 1) a blood brain niche (BBN) chip that recapitulates the blood-brain-barrier and niche; and 2) a migration chip that assesses cell migration.

Partnering for Integrated Care: A Learning Collaborative for Primary Care and Oral Health Teams.

Purpose: The Teaming and Integrating for Smiles and Health (TISH) Learning Collaborative was developed to help health care organizations accelerate progress in integrating delivery of oral and primary care. By providing expert support and a structure for testing change, the project aimed to improve the early detection of hypertension in the dental setting and of gingivitis in the primary care setting, and to increase the rate of bidirectional referrals between oral and primary care partners. We report its outcomes.

Etiologies of Acute Undifferentiated Febrile Illnesses in and near Iquitos from 1993 to 1999 in the Amazon River Basin of Peru.

The objective of this study was to determine the etiology of febrile illnesses among patients from October 1, 1993 through September 30, 1999, in the urban community of Iquitos in the Amazon River Basin of Peru. Epidemiological and clinical data as well as blood samples were obtained from consenting patients at hospitals, health clinics and private residences. Samples were tested for arboviruses in cell cultures and for IgM and IgG antibodies by ELISA.

Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC.

DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a 6   6   6 m liquid argon time-projection-chamber (LArTPC) that recorded cosmic-muon data at the CERN Neutrino Platform in 2019-2020 as a prototype of the DUNE Far Detector. Charged particles propagating through the LArTPC produce ionization and scintillation light.

On the relationship between valence and arousal in samples across the globe.

Affect is involved in many psychological phenomena, but a descriptive structure, long sought, has been elusive. Valence and arousal are fundamental, and a key question-the focus of the present study-is the relationship between them. Valence is sometimes thought to be independent of arousal, but, in some studies (representing too few societies in the world) arousal was found to vary with valence.

The complete mitochondrial and plastid genomes of the invasive marine red alga (Caulacanthaceae, Rhodophyta) from Moss Landing, California, USA.

is an invasive red alga that forms extensive mats in sheltered marine habitats around the world. To determine its genomic structure and genetic relationship to native and other non-native populations of , high-throughput sequencing analysis was performed on an introduced specimen from Bennett Slough, Moss Landing, California, USA. Assembly of 23,146,595 filtered 150 bp paired-end Illumina sequencing reads yielded its complete mitogenome (GenBank accession MT193839) and plastid genome (GenBank accession MT193838).

LKB1 deficiency in T cells promotes the development of gastrointestinal polyposis.

Germline mutations in , which encodes the tumor suppressor liver kinase B1 (LKB1), promote Peutz-Jeghers syndrome (PJS), a cancer predisposition syndrome characterized by the development of gastrointestinal (GI) polyps. Here, we report that heterozygous deletion of in T cells (LT mice) is sufficient to promote GI polyposis. Polyps from LT mice, mice, and human PJS patients display hallmarks of chronic inflammation, marked by inflammatory immune-cell infiltration, signal transducer and activator of transcription 3 (STAT3) activation, and increased expression of inflammatory factors associated with cancer progression [interleukin 6 (IL-6), IL-11, and CXCL2].

Crowdsourced assessment of common genetic contribution to predicting anti-TNF treatment response in rheumatoid arthritis.

Rheumatoid arthritis (RA) affects millions world-wide. While anti-TNF treatment is widely used to reduce disease progression, treatment fails in ∼one-third of patients. No biomarker currently exists that identifies non-responders before treatment.

Congenital neuroblastoma in a neonate with isotretinoin embryopathy.

We describe a neonate with isotretinoin embryopathy and an incidental finding of congenital neuroblastoma. Diffuse liver metastases led to the decision to provide oncologic therapy followed by tumor resection. Despite the possible need for chronic care related to the comorbidities of the isotretinoin embryopathy and oncologic management, the patient remains disease-free.

Regulated expression of pH sensing G Protein-coupled receptor-68 identified through chemical biology defines a new drug target for ischemic heart disease.

Chemical biology promises discovery of new and unexpected mechanistic pathways, protein functions and disease targets. Here, we probed the mechanism-of-action and protein targets of 3,5-disubstituted isoxazoles (Isx), cardiomyogenic small molecules that target Notch-activated epicardium-derived cells (NECs) in vivo and promote functional recovery after myocardial infarction (MI). Mechanistic studies in NECs led to an Isx-activated G(q) protein-coupled receptor (G(q)PCR) hypothesis tested in a cell-based functional target screen for GPCRs regulated by Isx.

Targeting native adult heart progenitors with cardiogenic small molecules.

Targeting native progenitors with small molecule pharmaceuticals that direct cell fate decisions is an attractive approach for regenerative medicine. Here, we show that 3,5-disubstituted isoxazoles (Isx), stem cell-modulator small molecules originally recovered in a P19 embryonal carcinoma cell-based screen, directed cardiac muscle gene expression in vivo in target tissues of adult transgenic reporter mice. Isx also stimulated adult mouse myocardial cell cycle activity.

Iquitos virus: a novel reassortant Orthobunyavirus associated with human illness in Peru.

Oropouche (ORO) virus, a member of the Simbu serogroup, is one of the few human pathogens in the Orthobunyavirus genus in the family Bunyaviridae. Genetic analyses of ORO-like strains from Iquitos, Peru, identified a novel reassortant containing the S and L segments of ORO virus and the M segment of a novel Simbu serogroup virus. This new pathogen, which we named Iquitos (IQT) virus, was first isolated during 1999 from a febrile patient in Iquitos, an Amazonian city in Peru.

Prevention of sepsis after splenectomy.

Individuals who do not have a spleen are highly susceptible to severe infections. The purpose of this article was to present vaccination guidelines for prophylactic treatment of sepsis following splenectomy. Nursing considerations for the prevention of sepsis after splenectomy are discussed.

Genetic relationships among Mayaro and Una viruses suggest distinct patterns of transmission.

Mayaro and Una viruses (MAYV, UNAV) are mosquito-borne alphaviruses that may cause an acute febrile illness characterized by headache, retro-orbital pain, and rash that may progress to a severe and prolonged arthralgia. MAYV was first isolated in Trinidad in 1954, and UNAV was first identified in northern Brazil in 1959. Since then, numerous isolates of these agents have been made from humans, wild vertebrates, and mosquitoes in several countries in northern South America.

Endemic Venezuelan equine encephalitis in northern Peru.

Since Venezuelan equine encephalitis virus (VEEV) was isolated in Peru in 1942, >70 isolates have been obtained from mosquitoes, humans, and sylvatic mammals primarily in the Amazon region. To investigate genetic relationships among the Peru VEEV isolates and between the Peru isolates and other VEEV strains, a fragment of the PE2 gene was amplified and analyzed by single-stranded conformation polymorphism. Representatives of seven genotypes underwent sequencing and phylogenetic analysis.

Determinants of HIV prevalence amongst female IDU in Madrid.

Objective: To explore the multitude possible factors associated with HIV in a population of female injecting drug users (IDUs) in Madrid, Spain.

Design: A cross-sectional study was undertaken and because of the lack of sampling frame in this population, a convenience sample was recruited from drug treatment, methadone services and street settings.

Methods: Face to face interviews were conducted with 304 female IDUs during October 1995-March 1996.

The role of prisons in the HIV epidemic among female injecting drug users.

The objective of this study was to describe factors associated with imprisonment of female injecting drug users (IDUs) and to assess if female IDUs who have been in prison have different HIV risk behaviours when compared to females IDUs who have never been incarcerated. A seroepidemiological survey was conducted of 304 female IDUs recruited in outreach and treatment programmes in Madrid, Spain. Data on sociodemographic characteristics and recent and lifetime risk factors, sexual and reproductive history and history of imprisonment were collected.

Women, drugs and HIV/AIDS: results of a multicentre European study.

Background: In the light of rising human immunodeficiency virus (HIV) incidence rates amongst women in Western Europe, a multicentred, cross-sectional study was undertaken to explore the multitude of possible factors associated with HIV in a population of female injecting drug users (IDU).

Methods: Face-to-face interviews were conducted with 1198 female IDU recruited from a variety of settings in Paris, Madrid, Rome, London and Berlin. Their HIV status was determined from antibody testing of blood or saliva samples or from written confirmation of HIV test results from a physician.

Development of reverse transcription-PCR assays specific for detection of equine encephalitis viruses.

Specific and sensitive reverse transcription-PCR (RT-PCR) assays were developed for the detection of eastern, western, and Venezuelan equine encephalitis viruses (EEE, WEE, and VEE, respectively). Tests for specificity included all known alphavirus species. The EEE-specific RT-PCR amplified a 464-bp region of the E2 gene exclusively from 10 different EEE strains from South and North America with a sensitivity of about 3,000 RNA molecules.