Post List

  • February 15, 2011
  • 08:31 PM

Deep sea carbon cycling: microbial action, and mystery

by Kevin Bonham in Food Matters

How excited was I to learn that the most recent issue of Nature Geoscience had a special focus on deep sea carbon cycling? I admit it, pretty excited. I was even more excited to learn that one of the 3 papers making up this special focus was about the microbial component of deep sea carbon cycling. This may not be something that you think about every day, but I do... well most days at least. The first two sentences of this paper explain why I find this topic so interesting.

Circulation of........ Read more »

  • February 15, 2011
  • 07:47 PM

Are You Normal? It Depends.

by Jenika in ionpsych

We all have personality quirks.  But occasionally, a person may behave so eccentrically and erratically that they cannot function in regular life situations.  It might seem easy to identify a person who behaves oddly.  They might be chronically suspicious of … Continue reading →... Read more »

Dickey CC, Morocz IA, Minney D, Niznikiewicz MA, Voglmaier MM, Panych LP, Khan U, Zacks R, Terry DP, Shenton ME.... (2010) Factors in sensory processing of prosody in schizotypal personality disorder: an fMRI experiment. Schizophrenia research, 121(1-3), 75-89. PMID: 20362418  

Guitart-Masip M, Pascual JC, Carmona S, Hoekzema E, Bergé D, Pérez V, Soler J, Soliva JC, Rovira M, Bulbena A.... (2009) Neural correlates of impaired emotional discrimination in borderline personality disorder: an fMRI study. Progress in neuro-psychopharmacology , 33(8), 1537-45. PMID: 19748540  

  • February 15, 2011
  • 06:58 PM

Going upstream in the scientific process, literally.

by Brian Mossop in The Decision Tree

My latest post for Wired Playbook reports on a new idea that two UK researchers have proposed for keeping tabs on which Olympic athletes are using performance-enhancing drugs. Rather than having the athletes pee in a cup or get blood drawn just before competition, the researchers believe that searching for drug metabolites in the wastewater [...]... Read more »

  • February 15, 2011
  • 05:46 PM

The Grand Challenge of Aerosolised Vaccines

by Connor Bamford in The Rule of 6ix

Despite the development of effective vaccines, many human populations are currently at the mercy of numerous endemic viral pathogens. Measles virus is one such pathogen that, in 2008, was responsible for 164,000 deaths; the worst effected areas are South-East Asia and Africa (WHO stats can be found here). You might find this surprising as there is currently a very good measles vaccine in use – in fact you probably received at some point during childhood and are protected from future in........ Read more »

Lin, W., Griffin, D., Rota, P., Papania, M., Cape, S., Bennett, D., Quinn, B., Sievers, R., Shermer, C., Powell, K.... (2011) Successful respiratory immunization with dry powder live-attenuated measles virus vaccine in rhesus macaques. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.1017334108  

  • February 15, 2011
  • 04:58 PM

Cannabis Use and Psychosis (Part 2)

by William Yates, M.D. in Brain Posts

I reviewed a research study last fall examining a Dutch study of cannabis use and psychotic symptoms.  That post is linked here.  In summary, the study suggested cannabis probably does not produce psychotic symptoms in the majority of users.  However, if you have a family member with a psychotic disorder (suggesting you may have a genetic risk for psychosis) you may be more likely to experience psychotic symptoms (i.e. hallucinations/delusions) with cannabis use.  This risk m........ Read more »

  • February 15, 2011
  • 03:54 PM

Fishy Business: Omega-3 Supplements

by Richard Masters in Elements Science

Richard Masters delves into the world of Omega 3 supplements which are conquering the world of nutrition and finds the evidence far from conclusive.

Related posts:Fish oil “not useful” in treatment of Alzheimer’s Disease
Hold homeopaths to account
Health round up
... Read more »

Lespérance, F., Frasure-Smith, N., St-André, E., Turecki, G., Lespérance, P., & Wisniewski, S. (2010) The Efficacy of Omega-3 Supplementation for Major Depression. The Journal of Clinical Psychiatry. DOI: 10.4088/JCP.10m05966blu  

  • February 15, 2011
  • 03:08 PM

State of the Field: Satellite tagging sharks

by WhySharksMatter in Southern Fried Science

Modern shark researchers have access to a variety of high-tech tools. Acoustic tags with noises specific to each individual shark signal a receiver (or network of receivers) every time the shark passes nearby. Some tags have three-dimensional accelerometers, allowing researchers to study the small scale movement patterns and behaviors of sharks. Others, which [...]... Read more »

  • February 15, 2011
  • 01:39 PM

Canada Releases World’s First Evidence-Based Sedentary Guidelines

by Travis Saunders, MSc, CEP in Obesity Panacea

Exciting news today – this morning the Canadian Society for Exercise Physiology (CSEP) released the world’s first evidence-based sedentary behaviour guidelines.  There have been some guidelines in the past, most notably for screen time, but they were essentially based on best-guesses more than any objective evidence.
These new guidelines are specifically for those aged 5-17, although there will hopefully be guidelines for both older and younger age-groups in the near ........ Read more »

Tremblay, MS, Leblanc, AG, Janssen, I, Kho, ME, Hicks, A, Murumets, K, Colley, RC, & Duggan, M. (2011) Canadian Sedentary Behaviour Guidelines for Children and Youth. Applied Physiology, Nutrition and Metabolism. info:/10.1139/H11-012

  • February 15, 2011
  • 01:12 PM

Lying moths use the threat of getting eaten to help their sex lives

by Matt Soniak in

It’s a love story as old as time itself: boy Asian corn borer moth (Ostrinia furnacalis) meets girl Asian corn borer moth; girl secretes sex pheromones; boy goes through his courtship ritual, a little song-and-dance routine where he rubs his wings against his thorax to produce a soft, whispering sound. It’s a sweet little love [...]... Read more »

  • February 15, 2011
  • 01:09 PM

Humans draw the LINE at Gonorrhea. Not that it helps.

by Iddo Friedberg in Byte Size Biology

The day after Valentine’s Day. Ah! What better day in the year can we find to discuss gonorrhea? In the US alone 700,000 people are infected each year, and 5 million are infected worldwide. In most infected men gonorrhea causes urethral discharge and pain while urinating. The reason is that Neisseria gonhorrea have little hair-like structures called fimbriae. This makes them very sticky and they stick to the urethra’s walls. Then you get inflammation, urethritis and urinatio........ Read more »

Mark T. Anderson, & H. Steven Seifert. (2011) Opportunity and Means: Horizontal Gene Transfer from the Human Host to a Bacterial Pathogen. mBio, 1-4. info:/10.1128/​mBio.00005-11

  • February 15, 2011
  • 12:44 PM

Do allergies lower the risk of low and high grade Glioma?

by Sally Church in Pharma Strategy Blog

It’s not often that having multiple allergies is a good thing, but that certainly seems to be the case if a recent study published in Cancer, Epidemiology, Biomarkers and Prevention is accurate.  I was tempted to create a new category … Continue reading →
... Read more »

McCarthy, B., Rankin, K., Il'yasova, D., Erdal, S., Vick, N., Ali-Osman, F., Bigner, D., & Davis, F. (2011) Assessment of Type of Allergy and Antihistamine Use in the Development of Glioma. Cancer Epidemiology Biomarkers , 20(2), 370-378. DOI: 10.1158/1055-9965.EPI-10-0948  

  • February 15, 2011
  • 12:34 PM

Ending the Immune War on Wheat

by Rob Mitchum in ScienceLife

The immune system is designed to protect the body against foreign invaders, neutralizing disease and infection. But organisms are all too happy to invite invasions several times a day through a seemingly innocuous act: eating. When food enters the digestive system, it has to be dealt with by the immune system just like everything else [...]... Read more »

Depaolo RW, Abadie V, Tang F, Fehlner-Peach H, Hall JA, Wang W, Marietta EV, Kasarda DD, Waldmann TA, Murray JA.... (2011) Co-adjuvant effects of retinoic acid and IL-15 induce inflammatory immunity to dietary antigens. Nature. PMID: 21307853  

  • February 15, 2011
  • 12:30 PM

To rock at video games, pick the red team

by Hel in Substantia Innominata

At the moment I play a lot to Team Fortress 2, a funny first-person-shooter where teams are red or blue. The aim is to defend your bases, to attack the enemies’ bases, to steal documents and so one. It is a really good game that I advice you. Well, I am not here to speak [...]... Read more »

Ilie A, Ioan S, Zagrean L, & Moldovan M. (2008) Better to be red than blue in virtual competition. Cyberpsychology , 11(3), 375-7. PMID: 18537513  

  • February 15, 2011
  • 12:13 PM

How does Culture Improve Mental Health?

by Ida Salusky in ionpsych

If you or a loved one had schizophrenia, where do you think you would have a better long term outcome: in the USA, or in a developing country?  The answer is probably not what you think.  The World Health organization … Continue reading →... Read more »

  • February 15, 2011
  • 10:12 AM

This is Your Brain on Drugs

by Sanford- Burnham in Beaker

Cocaine produces its powerful high by stimulating “reward” signals in the brain, sending users back again and again for more. Cocaine gains this effect, in part, by stimulating a receptor called the metabotropic glutamate receptor 2 (mGluR2). Dr. Nicholas Cosford’s group is currently collaborating with Dr. Athina Markou at UC San Diego and Dr. P. [...]... Read more »

  • February 15, 2011
  • 09:55 AM

Primate vaccines: help you to help me?

by SeriousMonkeyBusiness in This is Serious Monkey Business

"Help me to help you"--or is it the other way around with the new vaccines to help great apes avoid Ebola? Regardless, there are some reasons to be skeptical about the idea of vaccinating wildlife.... Read more »

Rouquet P, Froment JM, Bermejo M, Kilbourn A, Karesh W, Reed P, Kumulungui B, Yaba P, Délicat A, Rollin PE.... (2005) Wild animal mortality monitoring and human Ebola outbreaks, Gabon and Republic of Congo, 2001-2003. Emerging infectious diseases, 11(2), 283-90. PMID: 15752448  

  • February 15, 2011
  • 09:49 AM

The Tenth Anniversary of the Human Genome Sequence (in a nutshell)

by Katie Pratt in

Ten years ago today the first draft human genome sequence was published. Well, actually two sequences were published in that week. The first was from the Human Genome Project (HGP), a publicly funded international collaboration initialized in 1990, and was published in the journal Nature. The second was published in Science by Craig Venter’s company [...]... Read more »

Lander, E., Linton, L., Birren, B., Nusbaum, C., Zody, M., Baldwin, J., Devon, K., Dewar, K., Doyle, M., FitzHugh, W.... (2001) Initial sequencing and analysis of the human genome. Nature, 409(6822), 860-921. DOI: 10.1038/35057062  

Venter, J. (2001) The Sequence of the Human Genome. Science, 291(5507), 1304-1351. DOI: 10.1126/science.1058040  

  • February 15, 2011
  • 09:31 AM

Walking With Raptors

by Brian Switek in Dinosaur Tracking

A little more than a year ago, paleontologists working in Niger announced the discovery of Spinophorosaurus, a sauropod dinosaur with a wicked tail club. Its bones were not the only traces of dinosaurs to be found in the desert area. About three hundred feet from the exceptionally well preserved sauropod skeleton was a trackway containing [...]... Read more »

  • February 15, 2011
  • 09:23 AM

Why You Can't Cure a Plague of Olbermanns With An Infusion of O'Reillys

by David Berreby in Mind Matters

Do left-leaning social sciences need an influx of conservatives to open their collective minds? So argues Jon Haidt, but I wonder. As I read this study in this month's Journal of Risk Research, adding another ideology to social psychology would more likely lead to a lot of pointless yelling and a ...Read More
... Read more »

Kahan, D., Jenkins-Smith, H., & Braman, D. (2011) Cultural cognition of scientific consensus. Journal of Risk Research, 14(2), 147-174. DOI: 10.1080/13669877.2010.511246  

  • February 15, 2011
  • 09:05 AM

For lizards on white sands, evolution doesn't quite repeat itself, but it does rhyme

by Jeremy Yoder in Denim and Tweed

Check back tomorrow for an interview with this study's lead author, Erica Bree Rosenblum.

If life on Earth started over from scratch, would it eventually re-evolve the world we see today? This is the kind of question that makes for an entertaining argument over beers: "Well, without the Chicxulub impact, the dinosaurs wouldn't have gotten out of the way for mammals." "But dinosaurs were already turning into birds!" You might think that to resolve that argument, we'd need a second Earth and four........ Read more »

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