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News at a glance: New gene therapy, Europe ’s drought, and a black hole’s photon ring
ARCHAEOLOGY Drought exposes ‘Spanish Stonehenge’ for study Scientists are rushing to examine a 7000-year-old stone circle in central Spain that had been drowned by a reservoir for decades and was uncovered after the drought plaguing Europe lowered water levels. Nicknamed the “Spanish Stonehenge”—although 2000 years older than the U.K. stone circle—the Dolmen of Guadalperal (above) was described by archaeologists in the 1920s. The approximately 100 standing stones, up to 1.8 meters tall and arranged around an oval open space, were submerged in the Valdecañas reservoir after the construction of a ...
Source: Science of Aging Knowledge Environment - August 25, 2022 Category: Geriatrics Source Type: research

What We Learned About Genetic Sequencing During COVID-19 Could Revolutionize Public Health
You don’t want to be a virus in Dr. David Ho’s lab. Pretty much every day since the COVID-19 pandemic began, Ho and his team have done nothing but find ways to stress SARS-CoV-2, the virus that causes the disease. His goal: pressure the virus relentlessly enough that it mutates to survive, so drug developers can understand how the virus might respond to new treatments. As a virologist with decades of experience learning about another obstinate virus, HIV, Ho knows just how to apply that mutation-generating stress, whether by starving the virus, bathing it in antibodies that disrupt its ability to infect cells, ...
Source: TIME: Health - June 11, 2021 Category: Consumer Health News Authors: Alice Park Tags: Uncategorized COVID-19 feature Genetics Magazine Source Type: news

Biden ’s First Three Steps to Getting COVID-19 Vaccines to Every American
Less than a week after taking office, President Joe Biden announced three major steps to improve the country’s vaccination plans, and his Administration’s COVID-19 response team held its first press briefing. On Jan. 26, the President outlined the first three steps his team will take as part of a National Action Strategy for responding to the pandemic. First, the Administration will increase minimum weekly shipments of vaccines to states to 10 million doses, from the current 8.6 million. Next, Biden guaranteed these shipment numbers for the next three weeks, which allows states to plan out for the next month ho...
Source: TIME: Health - January 27, 2021 Category: Consumer Health News Authors: Alice Park Tags: Uncategorized COVID-19 Source Type: news

Johnson & Johnson ’ s Coronavirus Vaccine Enters Phase 3 Trial With Beth Israel
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Source: WBZ-TV - Breaking News, Weather and Sports for Boston, Worcester and New Hampshire - September 23, 2020 Category: Consumer Health News Authors: Health – CBS Boston Tags: Boston News Covid-19 Boston, MA Health Healthcare Status Beth Israel Deacones Medical Center Coronavirus Johnson & Johnson Source Type: news

The Great Vaccine Race: Inside the Unprecedented Scramble to Immunize the World Against COVID-19
The cleverest of enemies thrive on surprise attacks. Viruses—and coronaviruses in particular—know this well. Remaining hidden in animal hosts for decades, they mutate steadily, sometimes serendipitously morphing into more effective and efficient infectious agents. When a strain with just the right combination of genetic codes that spell trouble for people makes the leap from animal to human, the ambush begins. Such was the case with SARS-CoV-2, the coronavirus behind COVID-19, and the attack was mostly silent and insidious at first. Many people infected with SARS-CoV-2 remained oblivious as they served as the v...
Source: TIME: Health - September 10, 2020 Category: Consumer Health News Authors: Alice Park Tags: Uncategorized COVID-19 Magazine Source Type: news

Loss-of-Function in SMAD4 Might Not Be Critical for Human Natural Killer Cell Responsiveness to TGF- β
This study was carried out in accordance with approval of the Melbourne Health and Walter and Eliza Hall Institute of Medical Research's Human Research Ethics Committee (approval number: 2013.081). All subjects gave written informed consent for participation and publication. Results and Discussion TGF-β signaling in NK cells is associated with: phosphorylation in SMAD2 and 3, inhibition of IL-15-induced metabolism/proliferation, simultaneous downregulation of CD44, CD49e, and Eomes, and upregulation of CD16 and CD49a expression (7, 10). SMAD family member 4 (SMAD4) belongs to the SMAD family of transcript...
Source: Frontiers in Immunology - April 30, 2019 Category: Allergy & Immunology Source Type: research

Blocking IL-19 Signaling Ameliorates Allergen-Induced Airway Inflammation
This study was carried out in accordance with the recommendations of the National Institutes of Health standards and guidelines for the care and use of experimental animals. The protocol was approved by the Animal Ethics Committee of National Cheng Kung University (IACUC NO. 107272 and 105077). Author Contributions J-YW and M-SC designed the study. Y-HW and Y-LL performed the experiments. Y-HW and W-YC analyzed the data. Y-HW, W-YC, and M-SC wrote the manuscript. W-YC and J-YW provided critical technical and scientific guidance and discussion. Funding This work was supported by research grant from the Ministry of Scien...
Source: Frontiers in Immunology - April 29, 2019 Category: Allergy & Immunology Source Type: research

Human, Nonhuman Primate, and Bat Cells Are Broadly Susceptible to Tibrovirus Particle Cell Entry
Discussion Tibroviruses are highly undercharacterized rhabdoviruses with unknown pathogenic potential. All isolated tibroviruses (BAV, BHV, CPV, SWBV, and TIBV) have only been found in biting midge vectors or in various, apparently healthy non-human mammals (Cybinski et al., 1980; Standfast et al., 1984; Cybinski and Gard, 1986; Gibbs et al., 1989). The discovery of BASV, EKV-1, and EKV-2 genomes in human sera (Grard et al., 2012; Stremlau et al., 2015) suggests that at least some tibroviruses could infect humans. Because BASV was discovered in the serum of a severely ill individual, tibroviruses should be considered pote...
Source: Frontiers in Microbiology - April 25, 2019 Category: Microbiology Source Type: research

Antigen-Specific Single B Cell Sorting and Monoclonal Antibody Cloning in Guinea Pigs
This study was supported by NIH/NIAID grants R01AI102766 (YL), P01AI104722 (RW and YL), UM1 AI100663 (RW), and Bill and Melinda Gates Foundation grant OPP1084519 (RW). JS is a trainee of NIH training grant T32AI125186A to Anne Simon at University of Maryland, College Park. This study was also partially funded by the International AIDS Vaccine Initiative (IAVI) (RW) with the generous support of United States Agency for International Development (USAID), and Ministry of Foreign Affairs of the Netherlands. Conflict of Interest Statement The authors declare that the research was conducted in the absence of any commercial or ...
Source: Frontiers in Microbiology - April 22, 2019 Category: Microbiology Source Type: research

Surface (S) Layer Proteins of Lactobacillus acidophilus Block Virus Infection via DC-SIGN Interaction
We describe the unexpected binding of S-layer to cells devoid of DC-SIGN but also confirm that the presence of DC-SIGN was essential for S-layer’s antiviral activity. S-layer protein exerted its antiviral effect with different kinetics than mannan, a known viral inhibitor that also acts on DC-SIGN (Yu et al., 2017). Together our results suggest that inhibition of viral entry by S-layer occurs via a novel S-layer/DC-SIGN interaction. Materials and Methods Isolation of S-Layer Proteins S-layer proteins were extracted from overnight cultures of L. acidophilus ATCC 4356 cells grown in MRS medium at 37°C by usi...
Source: Frontiers in Microbiology - April 15, 2019 Category: Microbiology Source Type: research

Validation of a 16th Century Traditional Chinese Medicine Use of Ginkgo biloba as a Topical Antimicrobial
This study aimed to examine the traditional use of Ginkgo seeds as topical treatment for skin disorders for potential antibacterial efficacy. This is the first study to test and compare the antibacterial activity of various Ginkgo seed extracts on skin pathogens. In this work, we confirmed the ethnomedicinal importance of seeds in the treatment of skin diseases. As reported in the Compendium of Materia Medica Ben Cao Gang Mu, only the seeds were used for medicinal uses, especially as a topical treatment for skin infections. Moreover, our study validates the antimicrobial activity of the seed (i.e., seed coats and immature...
Source: Frontiers in Microbiology - April 15, 2019 Category: Microbiology Source Type: research

The Human Upper Respiratory Tract Epithelium Is Susceptible to Flaviviruses
In this study, we exposed apically well-differentiated human NECs cultured at the ALI to the related flaviviruses ZIKV, JEV, WNV, and Usutu virus (USUV). We selected these viruses due to the recent increasing evidences of potential threat to humans (Cadar et al., 2017; Simonin et al., 2018). We show that NECs are particularly susceptible to JEV and WNV infection and to other flaviviruses included in this study. Infection with each virus led to shedding of infectious virus particles through the apical and basolateral surfaces and triggered host mechanisms at the level of inflammatory and antiviral mediators....
Source: Frontiers in Microbiology - April 15, 2019 Category: Microbiology Source Type: research

Autophagy Limits Inflammasome During Chlamydia pneumoniae Infection
In this study we found blocking autophagy led to increased CP growth in both macrophages and mouse embryonic fibroblasts. In vivo, loss of the autophagy elongation component ATG16L1 specifically in myeloid cells led to increased mortality in response to CP infection, characterized by greater numbers of neutrophils and dendritic cells, but no change in the CP burden in the lungs. This was accompanied by an increase in inflammasome-active macrophages and IL-1β production. While induction of autophagy in macrophages led to reduced CP growth in vitro, in vivo treatment with rapamycin led to increased mortality of infec...
Source: Frontiers in Immunology - April 11, 2019 Category: Allergy & Immunology Source Type: research

Unveiling of HIV dynamics among transgender women: a respondent-driven sampling study in Rio de Janeiro, Brazil
Publication date: Available online 8 February 2017 Source:The Lancet HIV Author(s): Beatriz Grinsztejn, Emilia M Jalil, Laylla Monteiro, Luciane Velasque, Ronaldo I Moreira, Ana Cristina F Garcia, Cristiane V Castro, Alícia Krüger, Paula M Luz, Albert Y Liu, Willi McFarland, Susan Buchbinder, Valdilea G Veloso, Erin C Wilson Background The burden of HIV in transgender women (transwomen) in Brazil remains unknown. We aimed to estimate HIV prevalence among transwomen in Rio de Janeiro and to identify predictors of newly diagnosed HIV infections. Methods We recruited transwomen from Rio de Janeiro, Brazil, by respondent-dr...
Source: The Lancet HIV - February 7, 2017 Category: Infectious Diseases Source Type: research