Post List

Biology posts

(Modify Search »)

  • March 30, 2017
  • 03:12 AM
  • 8 views

[Objective] exposure to flame retardants and social behaviours

by Paul Whiteley in Questioning Answers

Although a few details of the study reported by Shannon Lipscomb and colleagues [1] (open-access) interested me, I was particularly taken by their use of "a silicone passive wristband sampler [worn] around his/her wrist or ankle" to "assess the child’s exposure to flame retardants" as part of their investigation "to determine if flame retardant exposure was associated with measurable differences in social behaviors among children ages 3–5 years."I've covered the topic of potential adver........ Read more »

Lipscomb ST, McClelland MM, MacDonald M, Cardenas A, Anderson KA, & Kile ML. (2017) Cross-sectional study of social behaviors in preschool children and exposure to flame retardants. Environmental health : a global access science source, 16(1), 23. PMID: 28274271  

  • March 29, 2017
  • 02:54 AM
  • 33 views

L-methylfolate administration and autism: a case report

by Paul Whiteley in Questioning Answers

I should have really titled this post 'another case report' given yesterday's entry on this blog talking about a case of [untreated] PKU and autistic behaviours/diagnosis. Here I am again talking about another N=1 with autism in mind and specifically the findings reported by Kim Siscoe & David Lohr [1] on how: "L-methylfolate supplementation improved symptoms of aggression and disruptive behavior in a child with autism who tested positive for the C677TT allele of the methyltetrahydrofolate r........ Read more »

  • March 28, 2017
  • 04:48 PM
  • 41 views

Bottlenose Dolphins: The Ultimate Sea Bully? (A Guest Post)

by Miss Behavior in The Scorpion and the Frog

By Kayla FullerImagine this situation: you’ve brought your favorite lunch to work. Everyone is jealous of your food, continuously eyeing it up. A few coworkers, who have brought in disappointing lunches in comparison, approach and demand that you hand it over. After you refuse, they beat you until your body lies lifeless and they take your lunch anyway. Woah, woah, woah… that took a dramatic turn! Photo of a harbour porpoise, taken by AVampireTear (Wikimedia Commons)But for harbour porpoise........ Read more »

  • March 28, 2017
  • 12:42 PM
  • 36 views

Caterpillars Recruit Friends with Anal Scraping

by Elizabeth Preston in Inkfish



Newly hatched caterpillars look helpless: they're teensy, soft and juicy, with no parent around for protection. But certain young insects, the masked birch caterpillars, are more capable than they seem. They gather in groups to keep themselves safe. To form those groups, they use a previously undiscovered language of buzzes, vibrations, head banging and butt scraping.



The species, Drepana arcuata, passes through five caterpillar life stages (called instars) on its way to becoming a li... Read more »

Yadav, C., Guedes, R., Matheson, S., Timbers, T., & Yack, J. (2017) Invitation by vibration: recruitment to feeding shelters in social caterpillars. Behavioral Ecology and Sociobiology, 71(3). DOI: 10.1007/s00265-017-2280-x  

  • March 28, 2017
  • 04:34 AM
  • 56 views

Presenting with the symptoms of autism and then diagnosed with phenylketonuria (PKU)

by Paul Whiteley in Questioning Answers

The case report from Betül Mazlum and colleagues [1] (open-access available here) illustrates once again that (a) the plural 'autisms' exist (see here) and (b) screening for inborn errors of metabolism (IEM) should be an important part of any autism assessment (see here). Indeed, screening for IEM should really be part of assessments for many different labels...Detailing a case report wherein a 3-year old child came to clinical attention for "speech delay and social problems", the authors ........ Read more »

Mazlum B, Anlar B, Kalkanoğlu-Sivri HS, Karlı-Oğuz K, Özusta Ş, & Ünal F. (2016) A late-diagnosed phenylketonuria case presenting with autism spectrum disorder in early childhood. The Turkish journal of pediatrics, 58(3), 318-322. PMID: 28266201  

  • March 27, 2017
  • 04:38 AM
  • 65 views

Detecting stereotypic behaviours through technology

by Paul Whiteley in Questioning Answers

"We have designed an Internet-of-Things (IoT) framework named WearSense that leverages the sensing capabilities of modern smartwatches to detect stereotypic behaviors in children with autism."So said the paper by Amir Mohammad Amiri and colleagues [1] (open-access available here) and, I have to say, something that really piqued my [research] attention. Describing how authors managed to design and construct a smartwatch with the ability to "detect three behaviors, including hand flapping, pa........ Read more »

Amiri AM, Peltier N, Goldberg C, Sun Y, Nathan A, Hiremath SV, & Mankodiya K. (2017) WearSense: Detecting Autism Stereotypic Behaviors through Smartwatches. Healthcare (Basel, Switzerland), 5(1). PMID: 28264474  

  • March 25, 2017
  • 02:39 PM
  • 85 views

Shaking dinosaur hips and messing with their heads

by Piter Boll in Earthling Nature

by Piter Kehoma Boll This week brought astonishing news regarding the phylogeny of dinosaurus, as you perhaps have heard or read. New anatomical evidences have completely rebuilt the basis of the dinosaur family tree and I’m here to explain a … Continue reading →... Read more »

  • March 25, 2017
  • 05:37 AM
  • 91 views

Including the "full intellectual range" in autism vision research

by Paul Whiteley in Questioning Answers

The paper by Alyse Brown and colleagues [1] (open-access available here) is probably not going to gain any significant media headlines (unlike other recent studies - see here and see here) but does cover a rather important question regarding the autism research landscape: how representative is autism research?Specifically looking at the collected research on visual processing (distinct from physical issues with the eyes that still require greater awareness) with autism in mind, the authors ........ Read more »

  • March 24, 2017
  • 07:58 AM
  • 102 views

Ammonium regulates mTOR signalling

by Joana Guedes in BHD Research Blog

mTORC1 and mTORC2 are two distinct mammalian TOR (target of rapamycin) complexes that regulate cell growth and metabolism. In cancer, genetic alterations lead to activation of mTOR signalling impacting tumour metabolism. Upregulated glutaminolysis is part of the metabolic reaction occurring in cancer that liberates high levels of ammonium, a toxic waste product. Although the importance of glutamine as a tumour nutrient is recognized, little is known about the potential effects of ammonium produc........ Read more »

  • March 24, 2017
  • 07:00 AM
  • 95 views

Friday Fellow: Divergent Dinobryon

by Piter Boll in Earthling Nature

by Piter Kehoma Boll Let’s return once more to the troublesome and neglected protists. This time I’m bringing you another tiny but beautiful alga, more precisely a golden alga. Its name is Dinobryon divergens and as usual there is no common … Continue reading →... Read more »

  • March 24, 2017
  • 03:46 AM
  • 110 views

Autism and anxiety disorder: zooming in on the details

by Paul Whiteley in Questioning Answers

Although it is not necessarily new news that (a) autism rarely exists in some sort of diagnostic vacuum, and (b) that some of the comorbidity 'over-represented' when it comes to autism can actually be more disabling than autism itself, there are still more investigations to be done.The paper by Vicki Bitsika & Christopher Sharpley [1] represents an example of how autism science is starting to go past the whole 'is there a connection between...' bit when it comes to autism and various comorbi........ Read more »

  • March 23, 2017
  • 04:02 AM
  • 119 views

Congenital cytomegalovirus (CMV) infection and autism continued

by Paul Whiteley in Questioning Answers

I wanted to briefly talk about the paper by Francesca Garofoli and colleagues [1] on congenital cytomegalovirus (CMV) infection and autism not because it contains any novel data (see here), but because it reminds us that the potential 'pathways' to a diagnosis of autism are multiple and not necessarily 'pre-programmed' as per the 'it's all genetic' arguments that frequently figure in various domains.Congenital CMV infection refers to the transmission of CMV - "a common virus that belongs to the ........ Read more »

  • March 22, 2017
  • 12:55 PM
  • 117 views

Pollination Mystery Unlocked by Stirling Bee Researchers

by beredim in Strange Animals





Bees latch on to similarly-sized nectarless flowers to unpick pollen - like keys fitting into locks, according to a new study by researchers at the University of Stirling.

The research shows the right size of bee is needed to properly pollinate a flower. The bee fits tightly with the flower's anthers, to vibrate and release the pollen sealed within.



"We found that a pollinator's size, ... Read more »

  • March 22, 2017
  • 05:38 AM
  • 118 views

Break a leg!

by Jente Ottenburghs in Evolutionary Stories

What to do when your prey refuses to be swallowed? Eurasian Spoonbills (Platalea leucordia) in Hungary have a solution…... Read more »

  • March 22, 2017
  • 04:08 AM
  • 121 views

On genotype and environmental exposure patterns

by Paul Whiteley in Questioning Answers

I was rather interested to read the paper by Michela Traglia and colleagues [1] (open-access available here) concluding that: "maternal and fetal genetic make-up are important determinants of mid-gestational maternal circulating levels of some environmental organohalogens." Interested because, in these days of gene-environment interactions being applied to just about everything, the detail that is missing - which genes might potentially be linked to which environmental factors - has not yet........ Read more »

  • March 21, 2017
  • 10:04 AM
  • 169 views

The Weirdest Animals on Earth: 12 Amazing Facts About Platypuses

by Miss Behavior in The Scorpion and the Frog

What IS that? A photo by Stefan Kraft at Wikimedia Commons.1. Platypuses are so strange, that when British scientists first encountered one, they thought it was a joke: A Governor of New South Wales, Australia, sent a platypus pelt and sketch to British scientists in 1798. Even in their first published scientific description of the species, biologists thought that this duck-beaked, beaver-bodied, web-footed specimen may be some Frankenstein-like creation stitched together as a hoax. But this is ........ Read more »

Scheich, H., Langner, G., Tidemann, C., Coles, R., & Guppy, A. (1986) Electroreception and electrolocation in platypus. Nature, 319(6052), 401-402. DOI: 10.1038/319401a0  

Warren, W., Hillier, L., Marshall Graves, J., Birney, E., Ponting, C., Grützner, F., Belov, K., Miller, W., Clarke, L., Chinwalla, A.... (2008) Genome analysis of the platypus reveals unique signatures of evolution. Nature, 453(7192), 175-183. DOI: 10.1038/nature06936  

  • March 21, 2017
  • 03:57 AM
  • 146 views

PACE trial recovery data and chronic fatigue syndrome - a reply

by Paul Whiteley in Questioning Answers

I'd encourage readers interested in the background to the response paper by Michael Sharpe and colleagues [1] to have a look at a previous blogging occasion when the topic of the PACE trial, chronic fatigue syndrome (CFS) and 'recovery' were discussed (see here).Suffice to say that this latest paper is a reply to one published by Carolyn Wilshire and colleagues [2] who concluded that: "The claim that patients [with CFS] can recover as a result of CBT [cognitive behaviour therapy] ........ Read more »

M Sharpe, T Chalder, AL Johnson, KA Goldsmith, & PD White. (2017) Do more people recover from chronic fatigue syndrome with cognitive behaviour therapy or graded exercise therapy than with other treatments?. Fatigue: Biomedicine, Health , 1-5. info:/10.1080/21641846.2017.1288629

  • March 20, 2017
  • 04:58 AM
  • 123 views

Moroccan flic-flac spider (Cebrennus rechenbergi)

by beredim in Strange Animals





Meet the Moroccan flic-flac spider (Cebrennus rechenbergi), a truly unique spider that when provoked or threatened escapes by doubling its normal walking speed using forward or backward flips similar to acrobatic flic-flac movements used by gymnasts.


C. rechenbergi is a species of huntsman spider indigenous to Morocco and can be found in the sand dunes of the Erg Chebbi desert . The spider ... Read more »

Ralf Simon King. (2013) BiLBIQ: A Biologically Inspired Robot with Walking and Rolling Locomotion. Biosystems . info:/10.1007/978-3-642-34682-8

  • March 20, 2017
  • 04:13 AM
  • 146 views

ALSPAC says no to cat ownership - psychosis risk hypothesis but...

by Paul Whiteley in Questioning Answers

"While pregnant women should continue to avoid handling soiled cat litter, given possible T. gondii exposure, our study strongly indicates that cat ownership in pregnancy or early childhood does not confer an increased risk of later adolescent PEs [psychotic experiences]."So said the findings reported by Francesca Solmi and colleagues [1] (open-access) who brought a smile to any reader of the title of their paper: "Curiosity killed the cat: no evidence of an association between cat ownershi........ Read more »

  • March 18, 2017
  • 04:58 AM
  • 154 views

HSV-2 gestational infection and offspring autism risk

by Paul Whiteley in Questioning Answers

"In our cohort, high levels of antibodies to herpes simplex virus 2 at midpregnancy were associated with an elevated risk of autism spectrum disorder in male offspring. These findings provide support for the hypothesis that gestational infection may contribute to the pathogenesis of autism spectrum disorder and have the potential to drive new efforts to monitor women more closely for cryptic gestational infection and to implement suppressive therapy during pregnancy."That was the conclusion reac........ Read more »

Milada Mahic, Siri Mjaaland, Hege Marie Bøvelstad, Nina Gunnes, Ezra Susser, Michaeline Bresnahan, Anne-Siri Øyen, Bruce Levin, Xiaoyu Che, Deborah Hirtz.... (2017) Maternal Immunoreactivity to Herpes Simplex Virus 2 and Risk of Autism Spectrum Disorder in Male Offspring. mSphere. info:/10.1128/mSphere.00016-17

join us!

Do you write about peer-reviewed research in your blog? Use ResearchBlogging.org to make it easy for your readers — and others from around the world — to find your serious posts about academic research.

If you don't have a blog, you can still use our site to learn about fascinating developments in cutting-edge research from around the world.

Register Now

Research Blogging is powered by SMG Technology.

To learn more, visit seedmediagroup.com.