A team of scientists are redefining what it means to be a prion--a type of protein that can pass heritable traits from cell to cell by its structure instead of by DNA. Although prions are infamous for causing Creutzfeldt-Jakob disease, fatal familial insomnia, and bovine spongiform encephalopathy, commonly known as mad cow's disease, the present study indicates that prions identified in yeast, and possibly in plants, and other organisms may be beneficial.
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Chakrabortee, S., Byers, J., Jones, S., Garcia, D., Bhullar, B., Chang, A., She, R., Lee, L., Fremin, B., Lindquist, S.... (2016) Intrinsically Disordered Proteins Drive Emergence and Inheritance of Biological Traits. Cell. DOI: 10.1016/j.cell.2016.09.017
Can we and should we formally 'teach' humour to people diagnosed on the autism spectrum? Indeed, do we actually need to?Yes said the results of the study published by Ching-Lin Wu and colleagues  although I personally am not so impressed.Discussing how their results "supported the effectiveness of the 15-hour training" regime, Wu et al report that for a small group of adolescents diagnosed with an autism spectrum disorder (ASD) "and average intelligence" moves to implement "a humor-knowl........ Read more »
Wu, C., Liu, Y., Kuo, C., Chen, H., & Chang, Y. (2016) Effectiveness of humor training among adolescents with autism. Psychiatry Research. DOI: 10.1016/j.psychres.2016.09.016
Among a group of older women, self-reported caffeine consumption of more than 261 mg per day was associated with a 36 percent reduction in the risk of incident dementia over 10 years of follow-up. This level is equivalent to two to three 8-oz cups of coffee per day, five to six 8-oz cups of black tea, or seven to eight 12-ounce cans of cola.
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Driscoll, I., Shumaker, S., Snively, B., Margolis, K., Manson, J., Vitolins, M., Rossom, R., & Espeland, M. (2016) Relationships Between Caffeine Intake and Risk for Probable Dementia or Global Cognitive Impairment: The Women’s Health Initiative Memory Study. The Journals of Gerontology Series A: Biological Sciences and Medical Sciences. DOI: 10.1093/gerona/glw078
In a post last week, I highlighted a recent study examining clinical issues in the diagnosis of Lewy body dementia (LBD).This study examined differentiating clinical and neuropsychological factors between LBD, Alzheimer's dementia and Parkinson's disease.You can access this post by clicking HERE.This topic received significant attention following the description of comedian Robin Williams' last years by his wife in the journal Neurology.Robin Williams suffered from LBD and like many, his diagnos........ Read more »
Williams SS. (2016) The terrorist inside my husband's brain. Neurology, 87(13), 1308-1311. info:/
Another short post today opening with the conclusion reached in the paper by Andrew Cashin and colleagues : "From the findings, it can be stated with confidence that people with ASD [autism spectrum disorder] have a high rate of comorbidity and increased risk for chronic disease."Yes, not new news to many that physical health is generally 'under-rated' when it comes to adult autism (see here and see here for examples). The question remains however: what are we all going to........ Read more »
Cashin A, Buckley T, Trollor JN, & Lennox N. (2016) A scoping review of what is known of the physical health of adults with autism spectrum disorder. Journal of intellectual disabilities : JOID. PMID: 27623754
I'm cheating a little bit today as minus too much critical commentary or discussion, I'm drawing your attention to the paper by Tony Salvatore and colleagues  (open-access) on a most important topic: suicide risk and autism.Written by authors who between them seem to know quite a bit about autism and also managing suicide prevention particularly under crisis conditions, I reckon this review article is one of the best we have so far in this area. I say that on the basis that not only are estim........ Read more »
Chang, B., Franklin, J., Ribeiro, J., Fox, K., Bentley, K., Kleiman, E., & Nock, M. (2016) Biological risk factors for suicidal behaviors: a meta-analysis. Translational Psychiatry, 6(9). DOI: 10.1038/tp.2016.165
A team of researchers has found that consuming an omega-3 fatty acid called DHA, or docosahexaenoic acid, can stop a known trigger of lupus and potentially other autoimmune disorders. DHA can be found in fatty, cold-water fish and is produced by the algae that fish eat and store in their bodies. It can be found in fish oil supplements as well, used by more than 30 million Americans.
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Bates, M., Brandenberger, C., Langohr, I., Kumagai, K., Lock, A., Harkema, J., Holian, A., & Pestka, J. (2016) Silica-Triggered Autoimmunity in Lupus-Prone Mice Blocked by Docosahexaenoic Acid Consumption. PLOS ONE, 11(8). DOI: 10.1371/journal.pone.0160622
"The results indicate that there is an elevated injury risk among Swedish schoolchildren with ADHD [attention-deficit hyperactivity disorder] but not for children with ASD [autism spectrum disorder]."So went the findings reported by Carl Bonander and colleagues  providing yet more important data on how a diagnosis of ADHD might be something that confers quite a bit of additional risk for all-manner of different negative outcomes.I've hinted at this important topic before as per........ Read more »
Bonander C, Beckman L, Janson S, & Jernbro C. (2016) Injury risks in schoolchildren with attention-deficit/hyperactivity or autism spectrum disorder: Results from two school-based health surveys of 6- to 17-year-old children in Sweden. Journal of safety research, 49-56. PMID: 27620934
Children with HIV who can resist the disease progressing could point the way to new treatments for HIV infection that are more widely applicable to infected adults and children alike, an international team of researchers has found.
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Muenchhoff, M., Adland, E., Karimanzira, O., Crowther, C., Pace, M., Csala, A., Leitman, E., Moonsamy, A., McGregor, C., Hurst, J.... (2016) Nonprogressing HIV-infected children share fundamental immunological features of nonpathogenic SIV infection. Science Translational Medicine, 8(358), 358-358. DOI: 10.1126/scitranslmed.aag1048
They've finally arrived. The results of the English Adult Psychiatric Morbidity Survey 2014 have been published by NHS Digital (yes, our Nation's healthcare services has a digital arm) and when it comes to autism (adult autism 18 years+), some rather peculiar statistics have been produced.OK, for those who want/need a quick heads-up on all-things Adult Psychiatric Morbidity Survey (APMS), I'll refer you to a previous post I wrote covering this prevalence survey with autism in mind........ Read more »
Brugha TS, McManus S, Smith J, Scott FJ, Meltzer H, Purdon S, Berney T, Tantam D, Robinson J, Radley J.... (2012) Validating two survey methods for identifying cases of autism spectrum disorder among adults in the community. Psychological medicine, 42(3), 647-56. PMID: 21798110
"School-based interventions should address malleable factors such as the number of peer connections and received friendships that predict the best social outcomes for children with ASD [autism spectrum disorder]."So said the study findings reported by Jill Locke and colleagues  looking at "the stable (unlikely to change) and malleable (changeable) characteristics of socially successful children with ASD."Mindful that the phrase 'socially successful children' is perhaps not one that I'm p........ Read more »
Locke J, Williams J, Shih W, & Kasari C. (2016) Characteristics of socially successful elementary school-aged children with autism. Journal of child psychology and psychiatry, and allied disciplines. PMID: 27620949
A team of researchers has observed what they believe are the building blocks of memories in a mouse brain. In their paper, the researchers describe how they caused certain neurons to become illuminated when they fired, allowing them to watch in real time as memories were made and then later as they were replayed while the mouse was sitting idle.
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Malvache, A., Reichinnek, S., Villette, V., Haimerl, C., & Cossart, R. (2016) Awake hippocampal reactivations project onto orthogonal neuronal assemblies. Science, 353(6305), 1280-1283. DOI: 10.1126/science.aaf3319
One clinical challenge is making an accurate diagnosis in patients with dementia.Alzheimer's disease is typically the predominant diagnosis in dementia. However a significant number of patients will present with dementia due to Lewy Body disease, Parkinson's dementia, frontotemporal dementia or vascular dementia.A recent study helps clinicians to distinguish Lewy Body from Alzheimer's dementia and Parkinson's disease.Douglas Scharre and collegues from Ohio State University conducted ........ Read more »
Scharre, D., Chang, S., Nagaraja, H., Park, A., Adeli, A., Agrawal, P., Kloos, A., Kegelmeyer, D., Linder, S., Fritz, N.... (2016) Paired Studies Comparing Clinical Profiles of Lewy Body Dementia with Alzheimer’s and Parkinson’s Diseases. Journal of Alzheimer's Disease, 1-10. DOI: 10.3233/JAD-160384
For the first time, an antibody was able to target and disrupt the Aβ plaques in the brain.... Read more »
Sevigny, J., Chiao, P., Bussière, T., Weinreb, P., Williams, L., Maier, M., Dunstan, R., Salloway, S., Chen, T., Ling, Y.... (2016) The antibody aducanumab reduces Aβ plaques in Alzheimer’s disease. Nature, 537(7618), 50-56. DOI: 10.1038/nature19323
Please use your full stops wisely.I believe that this is the first time that I've talked about postural tachycardia syndrome (PoTS) on this blog as I bring to your attention some rather intriguing findings reported by Hugo Penny and colleagues  on how PoTS and gluten-related disorders might not be unstrange diagnostic bedfellows.PoTS by the way, describes symptoms where standing upright / sitting down induces dizziness, fainting and other symptoms. As well as being quite prevalent in a c........ Read more »
Penny, H., Aziz, I., Ferrar, M., Atkinson, J., Hoggard, N., Hadjivassiliou, M., West, J., & Sanders, D. (2016) Is there a relationship between gluten sensitivity and postural tachycardia syndrome?. European Journal of Gastroenterology , 1. DOI: 10.1097/MEG.0000000000000740
"Elevated peripheral pro-NT [neurotensin] levels reflect more severe forms of active celiac disease, indicating a potential role of NT in intestinal inflammation."The suggestion, from Caroline Montén and colleagues , that the neuropeptide called neurotensin might play a role in paediatric coeliac disease is an interesting one that caught my eye recently. Interesting not only because of the potential implications for the archetypal 'gluten-causing' autoimmune condition cal........ Read more »
Montén C, Torinsson Naluai Å, & Agardh D. (2016) Role of pro-neurotensin as marker of paediatric celiac disease. Clinical and experimental immunology. PMID: 27612962
Why do more men die when they attempt suicide than women? The answer could lie in four traits, finds scientists. There are over 6,000 British lives lost to suicide each year, and nearly 75 per cent of those are male. However, research has found women are more likely to suffer from depression, and to attempt to take their own life.
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Deshpande, G., Baxi, M., Witte, T., & Robinson, J. (2016) A Neural Basis for the Acquired Capability for Suicide. Frontiers in Psychiatry. DOI: 10.3389/fpsyt.2016.00125
Today's post is a bit of a mash-up including two paper: the first from Emanuela Balestrieri and colleagues  (open-access available here) talking about "increased HERV-H [Human Endogenous Retroviruses - H] transcriptional activity in all autistic patients" included in their cohort (author's words not mine) and the second from D'Agati and colleagues  (open-access available here) describing "the reduction of HERV-H expression and the significant improvement of ADHD&n........ Read more »
Balestrieri E, Cipriani C, Matteucci C, Capodicasa N, Pilika A, Korca I, Sorrentino R, Argaw-Denboba A, Bucci I, Miele MT.... (2016) Transcriptional activity of human endogenous retrovirus in Albanian children with autism spectrum disorders. The new microbiologica, 39(3), 228-31. PMID: 27602423
D'Agati E, Pitzianti M, Balestrieri E, Matteucci C, Sinibaldi Vallebona P, & Pasini A. (2016) First evidence of HERV-H transcriptional activity reduction after methylphenidate treatment in a young boy with ADHD. The new microbiologica, 39(3), 237-9. PMID: 27602426
Researchers studying how the brain uses perception of the environment to guide action offer a new understanding of the neural circuits responsible for transforming sensation into movement.
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Goard, M., Pho, G., Woodson, J., & Sur, M. (2016) Distinct roles of visual, parietal, and frontal motor cortices in memory-guided sensorimotor decisions. eLife. DOI: 10.7554/eLife.13764
'Does Correction of Strabismus Improve Quality of Life in Children with Autism Spectrum Disorder?' went the title of the paper by Pinar Ozer and colleagues . Yes, it may very well do was the answer (but with certain caveats and the requirement for a lot more research in this area).Strabismus, a condition where the eyes don't line up in the same direction, can sometime have some quite noticeable effects on a person's vision and indeed, has been linked to various other non-vision related sympto........ Read more »
Ozer PA, Kabatas EU, Bicer BK, Bodur S, & Kurtul BE. (2016) Does Correction of Strabismus Improve Quality of Life in Children with Autism Spectrum Disorder: Results of a Parent Survey by Ophthalmologists. Seminars in ophthalmology, 1-6. PMID: 27599387
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