Zika Virus (ZIKV) was first isolated in 1947 from a sentinel monkey in Uganda and despite sporadic local outbreaks only caused mild disease in humans. The emergence of ZIKV combined with severe pathogenicity in South America as early as 2014 however raised questions about the molecular evolution of ZIKV since ZIKV was previously only associated with arthralgia and a mild febrile illness but not neuropathological disorders including abnormal foetal brain development and Guillan-Barre Syndrome (GB........ Read more »
Tang H, Hammack C, Ogden SC, Wen Z, Qian X, Li Y, Yao B, Shin J, Zhang F, Lee EM.... (2016) Zika Virus Infects Human Cortical Neural Progenitors and Attenuates Their Growth. Cell stem cell, 18(5), 587-90. PMID: 26952870
Rodriguez-Morales AJ, Bandeira AC, & Franco-Paredes C. (2016) The expanding spectrum of modes of transmission of Zika virus: a global concern. Annals of clinical microbiology and antimicrobials, 13. PMID: 26939897
Beckham JD, Pastula DM, Massey A, & Tyler KL. (2016) Zika Virus as an Emerging Global Pathogen: Neurological Complications of Zika Virus. JAMA neurology. PMID: 27183312
Miner JJ, Cao B, Govero J, Smith AM, Fernandez E, Cabrera OH, Garber C, Noll M, Klein RS, Noguchi KK.... (2016) Zika Virus Infection during Pregnancy in Mice Causes Placental Damage and Fetal Demise. Cell, 165(5), 1081-91. PMID: 27180225
Cugola, F., Fernandes, I., Russo, F., Freitas, B., Dias, J., Guimarães, K., Benazzato, C., Almeida, N., Pignatari, G., Romero, S.... (2016) The Brazilian Zika virus strain causes birth defects in experimental models. Nature. DOI: 10.1038/nature18296
Deng YQ, Zhao H, Li XF, Zhang NN, Liu ZY, Jiang T, Gu DY, Shi L, He JA, Wang HJ.... (2016) Isolation, identification and genomic characterization of the Asian lineage Zika virus imported to China. Science China. Life sciences, 59(4), 428-30. PMID: 26993654
Li C, Xu D, Ye Q, Hong S, Jiang Y, Liu X, Zhang N, Shi L, Qin CF, & Xu Z. (2016) Zika Virus Disrupts Neural Progenitor Development and Leads to Microcephaly in Mice. Cell stem cell. PMID: 27179424
Wu KY, Zuo GL, Li XF, Ye Q, Deng YQ, Huang XY, Cao WC, Qin CF, & Luo ZG. (2016) Vertical transmission of Zika virus targeting the radial glial cells affects cortex development of offspring mice. Cell research. PMID: 27174054
Grant, A., Ponia, S., Tripathi, S., Balasubramaniam, V., Miorin, L., Sourisseau, M., Schwarz, M., Sánchez-Seco, M., Evans, M., Best, S.... (2016) Zika Virus Targets Human STAT2 to Inhibit Type I Interferon Signaling. Cell Host . DOI: 10.1016/j.chom.2016.05.009
Shan C, Xie X, Muruato AE, Rossi SL, Roundy CM, Azar SR, Yang Y, Tesh RB, Bourne N, Barrett AD.... (2016) An Infectious cDNA Clone of Zika Virus to Study Viral Virulence, Mosquito Transmission, and Antiviral Inhibitors. Cell host . PMID: 27198478
Ashour J, Laurent-Rolle M, Shi PY, & García-Sastre A. (2009) NS5 of dengue virus mediates STAT2 binding and degradation. Journal of virology, 83(11), 5408-18. PMID: 19279106
Amaral N, Vendrell A, Funaya C, Idrissi FZ, Maier M, Kumar A, Neurohr G, Colomina N, Torres-Rosell J, Geli MI.... (2016) The Aurora-B-dependent NoCut checkpoint prevents damage of anaphase bridges after DNA replication stress. Nature cell biology, 18(5), 516-26. PMID: 27111841
Schröder-Heurich B, Wieland B, Lavin MF, Schindler D, & Dörk T. (2014) Protective role of RAD50 on chromatin bridges during abnormal cytokinesis. FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 28(3), 1331-41. PMID: 24344331
Wang L, Huang J, Jiang M, & Lin H. (2012) Signal transducer and activator of transcription 2 (STAT2) metabolism coupling postmitotic outgrowth to visual and sound perception network in human left cerebrum by biocomputation. Journal of molecular neuroscience : MN, 47(3), 649-58. PMID: 22219046
Kumar A, Bühler S, Selisko B, Davidson A, Mulder K, Canard B, Miller S, & Bartenschlager R. (2013) Nuclear localization of dengue virus nonstructural protein 5 does not strictly correlate with efficient viral RNA replication and inhibition of type I interferon signaling. Journal of virology, 87(8), 4545-57. PMID: 23408610
Uchil, P., Kumar, A., & Satchidanandam, V. (2006) Nuclear Localization of Flavivirus RNA Synthesis in Infected Cells. Journal of Virology, 80(11), 5451-5464. DOI: 10.1128/JVI.01982-05
In my daily review of neuroscience news I ran across an article flu vaccination and dementia risk in heart failure.This study was reported at the 3rd World Congress on Acute Heart Failure by Dr. Ju-Chi Liu from Taipei Medical University.So how might influenza vaccination be related to dementia risk? We do know acute influenza infection reaches the brain causing headache and increasing brain inflammation, at least temporarily. We also know brain inflammation may be involved in the mechanism........ Read more »
Liu JC, Hsu YP, Kao PF, Hao WR, Liu SH, Lin CF, Sung LC, & Wu SY. (2016) Influenza Vaccination Reduces Dementia Risk in Chronic Kidney Disease Patients: A Population-Based Cohort Study. Medicine, 95(9). PMID: 26945371
One key characteristic of a beautiful scientific theory is the simplicity of the underlying concepts. According to Weinberg, Einstein's theory of gravitation is described in fourteen equations whereas Newton's theory can be expressed in three. Despite the appearance of greater complexity in Einstein's theory, Weinberg finds it more beautiful than Newton's theory because the Einsteinian approach rests on one elegant central principle – the equivalence of gravitation and ........ Read more »
The paper by Jennifer Jaskiewicz and colleagues  recently offered a further important insight into the relationship between autism and seizure or seizure disorder (i.e. epilepsy).Based on the examination of records of nearly 50,000 children and young adults diagnosed with an autism spectrum disorder (ASD) compared with approximately quarter of a million 'not-autism' participants, authors reported some interesting trends. Concluding that some 19% of participants with autism experienced "s........ Read more »
Jennifer Jaskiewicz, Apryl Susi, Elizabeth Hisle-Gorman, David Dennison, Gregory Gorman, Cade Nylund, & Christine Erdie-Lalena. (2016) Quantification of Risks of Seizure in Autism. Neurology. info:/
In the aftermath of violent acts such as mass shootings, many people assume mental illness is the cause. After studying the 2011 case of Norwegian mass murderer Anders Breivik, researchers are suggesting a new forensic term to classify non-psychotic behavior that leads to criminal acts of violence.
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Rahman T, Resnick PJ, & Harry B. (2016) Anders Breivik: Extreme Beliefs Mistaken for Psychosis. The journal of the American Academy of Psychiatry and the Law, 44(1), 28-35. PMID: 26944741
In my last post I reported on the use of machine learning to aid in predicting response to depression treatment.Another interesting depression prediction tool is being investigated in a trial in England funded by the Oxford Health NHS Foundation Trust.This trial uses a visual facial recognition tool. The hypothesis is that early antidepressant action can be identified by changes in facial emotional recognition.This trial stems from work by Catherine Harmer Ph.D. from the University of Oxford. He........ Read more »
Pringle A, & Harmer CJ. (2015) The effects of drugs on human models of emotional processing: an account of antidepressant drug treatment. Dialogues in clinical neuroscience, 17(4), 477-87. PMID: 26869848
Pop quiz: hands up — how many of you think positive stereotypes are OK? I suspect that for many of you, your first reaction may have been, “well, yeah, they’re positive, right?” I can totally empathize with that shortcut, but … Continue reading →... Read more »
Clinical factors that related with persistent postconcussion symptoms were sex, greater worsening symptoms from day of concussion to first concussion evaluation, continued activity participation, loss of consciousness, anterograde amnesia, and premorbid headaches, emotional symptoms on the day of concussion, and greater symptoms the day of the clinical examination. ... Read more »
Heyer GL, Schaffer CE, Rose SC, Young JA, McNally KA, & Fischer AN. (2016) Specific Factors Influence Postconcussion Symptom Duration among Youth Referred to a Sports Concussion Clinic. The Journal of pediatrics. PMID: 27056449
I have quite a bit of time for the various members of the Stanley Division of Developmental Neurovirology at Johns Hopkins on this blog. Not least because of the interesting work of one researcher in particular - Emily Severance - as a name behind some potentially very important research on how food, infection and immune function might come together in complicated conditions such as [some] schizophrenia and [some] bipolar disorder (see here and see here).Continuing their 'gut-brain' theme (........ Read more »
Severance, E., Gressitt, K., Stallings, C., Katsafanas, E., Schweinfurth, L., Savage, C., Adamos, M., Sweeney, K., Origoni, A., Khushalani, S.... (2016) Candida albicans exposures, sex specificity and cognitive deficits in schizophrenia and bipolar disorder. npj Schizophrenia, 16018. DOI: 10.1038/npjschz.2016.18
The human microbiome is an important component of human health and disease. It is an ecosystem of microbes that exists in and on humans, and can affect disease states through disturbances in composition, diversity, metabolism, etc. Understanding the human microbiome will not only allow us to better understand human health, but it will also allow us to treat medical conditions in new and effective ways (e.g. Fecal Microbiota Transplants).... Read more »
Knowles B, Silveira CB, Bailey BA, Barott K, Cantu VA, Cobián-Güemes AG, Coutinho FH, Dinsdale EA, Felts B, Furby KA.... (2016) Lytic to temperate switching of viral communities. Nature, 531(7595), 466-70. PMID: 26982729
Treating depression is kind of a guessing game. Trying to find a medication that works without causing side effects can take months, or more likely, years. However, new research demonstrates the effectiveness of ketamine to treat depression in a mouse model of the disease and brings together two hypotheses for the cause of depression.
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Ren, Z., Pribiag, H., Jefferson, S., Shorey, M., Fuchs, T., Stellwagen, D., & Luscher, B. (2016) Bidirectional Homeostatic Regulation of a Depression-Related Brain State by Gamma-Aminobutyric Acidergic Deficits and Ketamine Treatment. Biological Psychiatry. DOI: 10.1016/j.biopsych.2016.02.009
Sometimes reading a flawed argument triggers my rage, I really do get angry, a phenomenon that invariably surprises and amuses me. What follows is my attempt to use my anger in a constructive way, it may include elements of a…Read more ›... Read more »
Migraines are a very unpleasant variety of headaches, often associated with other symptoms such as nausea, vomiting, photophobia (aversion to light) and visual disturbances. Hundreds of millions of people around the world suffer regular migraines, but their brain basis remains largely unclear.
Now a new paper reports that the origin of migraines may have been pinpointed - in the brain of one sufferer, at least. German neuroscientists Laura H. Schulte and Arne May used fMRI to record brain... Read more »
Schulte LH, & May A. (2016) The migraine generator revisited: continuous scanning of the migraine cycle over 30 days and three spontaneous attacks. Brain : a journal of neurology. PMID: 27190019
The bacteria in and on our bodies have been shown to be vital for human health, influencing nutrition, obesity and protection from diseases. But science has only recently delved into the importance of the microbiome of plants. Since plants can't move, they are especially reliant on partnerships with microbes to help them get nutrients.
... Read more »
A free full-text commentary in the Lancet summarizes recent evidence of the benefit of aspirin in stroke prevention.This commentary focused on what is called secondary prevention. Secondary prevention is defined as prevention following events related to the disease in question.So secondary prevention in stroke would be reduction in stroke risk in those who have had a stroke or pre-stroke syndromes such as transient ischemic attacks (TIA).The key take-home message from the commentary by Graeme Ha........ Read more »
Hankey, G. (2016) The benefits of aspirin in early secondary stroke prevention. The Lancet. DOI: 10.1016/S0140-6736(16)30511-6
The rich stay rich If you had rich ancestors, you might just be in luck. Two Italian economists used tax data to identify the wealthiest families in the city-state Florence in 1427. In contrast with the idea that you’re largely responsible for your own fortune, they found that the wealth of the 1427 families was […]... Read more »
Barone, G and Mocetti, S. (2016) Intergenerational mobility in the very long run: Florence 1427-2011. Bank of Italy working papers. info:/
It came as no surprise to me that the systematic review and meta-analysis article by Jerome Sarris and colleagues  found what it did in relation to the use of [certain] adjunctive (add-on) nutraceuticals alongside antidepressants to reduce depressive symptoms: some of them might actually be clinically useful.With no medical or clinical advice given or intended, the authors report that "adjunctive use of SAMe, methylfolate, omega-3, and vitamin D with antidepressants" might be something to con........ Read more »
Sarris J, Murphy J, Mischoulon D, Papakostas GI, Fava M, Berk M, & Ng CH. (2016) Adjunctive Nutraceuticals for Depression: A Systematic Review and Meta-Analyses. The American journal of psychiatry. PMID: 27113121
Scientists have identified the trigger for immune cells' inflammatory response -- a discovery that may pave the way for new treatments for many human diseases. Immune cells play essential roles in the maintenance and repair of our bodies. When we injure ourselves, immune cells mount a rapid inflammatory response to protect us against infection and help heal the damaged tissue.
... Read more »
Helen Weavers, Iwan R. Evans, Paul Martin, & Will Wood. (2016) Corpse engulfment generates a molecular memory that primes the macrophage inflammatory response. Cell. DOI: http://dx.org/10.1016/j.cell.2016.04.049
In a recent paper (Ten Cate et al., 2016) we review the available experimental evidence for the perception of regularity and rhythms by birds, like the ability to distinguish regular from irregular stimuli over tempo transformations and report data from new experiments. ... Read more »
van der Aa, J., Honing, H., & ten Cate, C. (2015) The perception of regularity in an isochronous stimulus in zebra finches (Taeniopygia guttata) and humans. Behavioural Processes, 37-45. DOI: 10.1016/j.beproc.2015.02.018
ten Cate, C., Spierings, M., Hubert, J., & Honing, H. (2016) Can Birds Perceive Rhythmic Patterns? A Review and Experiments on a Songbird and a Parrot Species. Frontiers in Psychology. DOI: 10.3389/fpsyg.2016.00730
Treatment of depression remains primarily an uninformed clinical process. Several effective drug and psychotherapy interventions are available. However, there is no reliable way to determine which treatment is likely to be the most effective for an individual patient.A recent study that used machine learning techniques to address this problem has been published.A research team from Yale University used clinical data from the Sequenced Treatment Alternatives to Relieve Depression (STAR*D) tr........ Read more »
Chekroud AM, Zotti RJ, Shehzad Z, Gueorguieva R, Johnson MK, Trivedi MH, Cannon TD, Krystal JH, & Corlett PR. (2016) Cross-trial prediction of treatment outcome in depression: a machine learning approach. The lancet. Psychiatry, 3(3), 243-50. PMID: 26803397
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