Title: Poorer Kids Have Poorer Sleep: Study
Category: Health News
Created: 5/3/2007 2:00:00 AM
Last Editorial Review: 5/3/2007 12:00:00 AM

Title: Cat Allergy Doesn't Have to Mean Giving Up Kitty
Category: Health News
Created: 4/23/2010 2:10:00 PM
Last Editorial Review: 4/26/2010 12:00:00 AM

Title: Many in U.S. Have at Least 1 Heart Risk Factor
Category: Health News
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Last Editorial Review: 4/27/2010 10:36:05 AM

Title: Health Tip: Foods to Avoid If You Have Ulcerative Colitis
Category: Health News
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Title: Health Tip: Signs That You Might Have Pancreatitis
Category: Health News
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Title: Health Tip: If You Have Fibromyalgia
Category: Health News
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Last Editorial Review: 4/30/2010 12:00:00 AM

Title: Happiest States Have Most Suicides
Category: Health News
Created: 4/23/2011 11:00:00 AM
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Title: Low Health Literacy May Have Deadly Consequences
Category: Health News
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Title: More Babies Today Have Irregular Head Shape: Expert
Category: Health News
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Title: Menopause: Smokers Have More Hot Flashes
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Title: Women Who Smoke May Have Higher Risk for Rheumatoid Arthritis
Category: Health News
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Title: Caring for Severely Ill Kids May Have Silver Lining
Category: Health News
Created: 4/29/2014 2:35:00 PM
Last Editorial Review: 4/30/2014 12:00:00 AM

Title: Health Tip: Being Healthy Doesn't Have to Be Expensive
Category: Health News
Created: 5/1/2014 7:35:00 AM
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Title: News Coverage of Teen Suicides May Have Ripple Effect
Category: Health News
Created: 5/2/2014 7:35:00 AM
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Title: Women's Brains May Have Tougher Time Recovering From Concussion
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Created: 4/28/2015 12:00:00 AM
Last Editorial Review: 4/28/2015 12:00:00 AM

Title: Drop in Drunk Driving Crashes May Have Boosted U.S. Economy
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Title: Sharing Breast Milk May Pose Risks Women Haven't Considered
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Title: Babies Fed Rice-Based Cereals Have Higher Arsenic Levels, Study Finds
Category: Health News
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Title: Kids From Poorer Families May Have Worse Food Allergy Care
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Title: Kids of Older Moms May Have a Leg Up on Their Peers
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Title: Seniors Often Have Trouble Managing Money, Medicines
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Title: Health Tip: When To Call Your Doctor If You Have Lower Back Pain
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Title: Have Heart Failure? Take Precautions During Pandemic
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Title: High Testosterone Levels Have Different Health Impact for Men and Women
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Title: Obamacare May Have Boosted Use of Mammograms
Category: Health News
Created: 5/1/2020 12:00:00 AM
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Nutrient acquisition is a central challenge for all organisms. For the fungal pathogen Candida albicans, utilization of amino acids has been shown to be critical for survival, immune evasion, and escape, while the importance of catabolism of host-derived proteins and peptides in vivo is less well understood. Stp1 and Stp2 are paralogous transcription factors (TFs) regulated by the Ssy1-Ptr3-Ssy5 (SPS) amino acid sensing system and have been proposed to have distinct, if uncertain, roles in protein and amino acid utilization. We show here that Stp1 is required for proper utilization of peptides but has no effect on amino acid catabolism. In contrast, Stp2 is critical for utilization of both carbon sources. Commensurate with this observation, we found that Stp1 controls a very limited set of genes, while Stp2 has a much more extensive regulon that is partly dependent on the Ssy1 amino acid sensor (amino acid uptake and catabolism) and partly Ssy1 independent (genes associated with filamentous growth, including the regulators UME6 and SFL2). The ssy1/ and stp2/ mutants showed reduced fitness in a gastrointestinal (GI) colonization model, yet induced greater damage to epithelial cells and macrophages in a manner that was highly dependent on the growth status of the fungal cells. Surprisingly, the stp1/ mutant was better able to colonize the gut but the mutation had no effect on host cell damage. Thus, proper protein and amino acid utilization are both required for normal host interaction and are controlled by an interrelated network that includes Stp1 and Stp2.

Rohini Singh and Timothy A. Linksvayer

Wolbachia is a widespread group of maternally-transmitted endosymbiotic bacteria that often manipulates the reproductive strategy and life history of its hosts to favor its own transmission. Wolbachia mediated phenotypic effects are well characterized in solitary hosts, but effects in social hosts are unclear. The invasive pharaoh ant, Monomorium pharaonis, shows natural variation in Wolbachia infection between colonies and can be readily bred under laboratory conditions. We previously showed that Wolbachia-infected pharaoh ant colonies had more queen-biased sex ratios than uninfected colonies, which is expected to favor the spread of maternally-transmitted Wolbachia. Here, we further characterize the effects of Wolbachia on the short- and longer-term reproductive and life history traits of pharaoh ant colonies. First, we characterized the reproductive differences between naturally infected and uninfected colonies at three discrete time points and found that infected colonies had higher reproductive investment (i.e. infected colonies produced more new queens), particularly when existing colony queens were three months old. Next, we compared the long-term growth and reproduction dynamics of infected and uninfected colonies across their whole life cycle. Infected colonies had increased colony-level growth and early colony reproduction, resulting in a shorter colony life cycle, when compared to uninfected colonies.

Screening for Chlamydia trachomatis and Neisseria gonorrhoeae at the pharyngeal, urogenital, and anorectal sites is recommended for men who have sex with men (MSM). Combining the three individual-site samples into a single pooled sample could result in significant cost savings, provided there is no significant sensitivity reduction. The aim of this study was to examine the sensitivity of pooled samples for detecting chlamydia and gonorrhea in asymptomatic MSM using a nucleic acid amplification test. Asymptomatic MSM who tested positive for chlamydia or gonorrhoea were invited to participate. Paired samples were obtained from participants prior to administration of treatment. To form the pooled sample, the anorectal swab was agitated in the urine specimen transport tube and then discarded. The pharyngeal swab and 2 ml of urine sample were then added to the tube. The difference in sensitivity between testing of pooled samples and individual-site testing was calculated against an expanded gold standard, where an individual is considered positive if either pooled-sample or individual-site testing returns a positive result. All samples were tested using the Aptima Combo 2 assay. A total of 162 MSM were enrolled in the study. Sensitivities of pooled-sample testing were 86% (94/109; 95% confidence interval [CI], 79 to 92%]) for chlamydia and 91% (73/80; 95% CI, 83 to 96%) for gonorrhea. The sensitivity reduction was significant for chlamydia (P = 0.02) but not for gonorrhea (P = 0.34). Pooling caused 22 infections (15 chlamydia and 7 gonorrhoea) to be missed, and the majority were single-site infections (19/22). Pooling urogenital and extragenital samples from asymptomatic MSM reduced the sensitivity of detection by approximately 10% for chlamydia but not for gonorrhea.

The super-sensitive smelling ability of American grasshoppers has been used to create biological bomb sniffers, which could prove useful for security purposes

Sony has managed to best its top-of-the-line noise cancelling earbuds with a new, improved, and best of all, cheaper model.

By Rachana Pradhan and Fred Schulte | Kaiser Health News

The Trump administration has sent hundreds of millions of dollars in pandemic-related bailouts to health care providers with checkered histories, including a Florida-based cancer center that agreed to pay a $100 million criminal penalty as part of a federal antitrust investigation.

At least half of the top 10 recipients, part of a group that received $20 billion in emergency funding from the Department of Health and Human Services, have paid millions in recent years either in criminal penalties or to settle allegations related to improper billing and other practices, a Kaiser Health News review of government records shows.

Read more at The Daily Beast.

Being at home this long, or really, just in one place for this long, has led me to see how much waste I produce. Spoiler alert: it’s a lot more than I thought. But I’m not here to shame anyone, in fact, quite the opposite. I think there are plenty of small ways we can cut down our carbon footprint, from driving less (check), to not using a washing machine or dryer (also, sadly, check), but gardening is what I’ve been doing, and is something that I’d recommend everyone give a shot now that we all have a little more times on our hands.

GETTING STARTED

Composting is a natural way to recycle all of the organic materials in your house through decomposition. Compost can improve your soil’s water retention, which saves you money on your water bills, and helps keep excess garbage out of landfills, too. To get started you need two things. The first is a compost bin for your kitchen. This is great whether you want to start a compost at home or if you have a compost center you can bring them to. You want something sleek, designy, yet simple because after all, it’s really just a trash can. This is an excellent one.

Read more at The Daily Beast.

Mercury is mostly iron, which may be because a series of close encounters with a young Venus billions of years ago stripped away its rocky outer layers

Strange blasts from space called fast radio bursts continue to puzzle astronomers with their odd behaviour, as they seem to come from a variety of galaxies

A strange supernova that’s 100 times brighter than it should be has long been a mystery, but it may be explained by the explosion slamming into a cloud of gas

Young Mars may have endured a series of huge collisions that smashed its mantle, throwing off our measurements of when it formed by up to 15 million years

The International Astronomical Union has concluded a review of satellite mega constellations such as SpaceX's Starlink satellites and found they will have a major impact on large telescopes, but not naked eye astronomy

Stars like our sun formed in a dense cluster with thousands of others, during which time they may have swapped planets

NASA’s InSight lander has been on the surface of Mars for over a year now – here are five of its strangest and most fascinating discoveries from the Red Planet

The enormous black hole at the centre of the Milky Way was active millions of years ago, and its intense X-rays may have formed some molecules necessary for life

A huge black hole in a distant galaxy caused the largest explosion we have ever seen, with the energy of 10 billion suns – and it isn't clear why it was so big

A team of researchers say they have discovered a protein molecule inside a meteorite, the first extraterrestrial example ever found, but others are sceptical

When Mars was young, parts of the planet may have been able to sustain RNA, a molecule that probably played a key role in the beginnings of life on Earth

When Earth and Venus formed, they both had global magma oceans deep underground. Earth’s has turned solid by now, but Venus’s may still remain hidden