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https://www.readbyqxmd.com/read/28108286/the-impact-of-zika-virus-in-the-brain
#1
Fabiele Baldino Russo, Patricia Cristina Baleeiro Beltrão-Braga
The recent outbreak of ZIKV in Brazil called the attention of the world because the effects of viral infection in the brain under development in fetuses. Consequences of vertical infection comprise brain malformation, especially microcephaly, eye and musculoskeletal abnormalities, among others. In adults, outcomes of infection include meningoencephalitis and Guillain-Barré syndrome. Recent data specific suggest that neural progenitor cells are the main targets of ZIKV infection, causing massive cellular death, which in turns, causes impairment in the neurogenesis process...
January 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28093452/a-time-to-save
#2
Carol J Baker
Group B Streptococcus (GBS), characterized by Lancefield in 1933, was not recognized as a human pathogen until the early 1970s when it emerged and replaced Escherichia coli as the most common cause of sepsis and meningitis among neonates and young infants. This article briefly gives a personnel account of the discovery of clinical syndromes of GBS distinguished by age at onset, vertical mode of transmission for early-onset disease, meningeal tropism for GBS capsular (CPS) type III strains, and protective CPS epitopes...
January 16, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28092989/therapeutic-complement-inhibition-a-promising-approach-for-treatment-of-neuroimmunological-diseases
#3
Kjara S Pilch, Peter Spaeth, Yuki Nobuhiro, Benjamin R Wakerley
Autoimmunity is an important cause of disease both in the central and peripheral nervous systems. Aetiologies and clinical manifestations are complex and heterogeneous. Inappropriate control of complement activation at inappropriate sites has been recognized as a major determinant in several neurological conditions, including Guillain-Barré syndrome and neuromyelitis optica. In each case pathogenesis is thought to be associated with generation of autoantibodies which upon binding guide activation of the complement system to self-tissue...
January 17, 2017: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/28091723/changes-in-the-severity-and-subtype-of-guillain-barr%C3%A3-syndrome-admitted-to-a-specialist-neuromedical-icu-over-a-25%C3%A2-year-period
#4
C J Taylor, N P Hirsch, D M Kullmann, Robin S Howard
We report a retrospective review of 110 patients with acute Guillain-Barré syndrome (GBS) admitted to a specialised intensive care unit (ICU) in a tertiary referral centre over a 25 year period, the start of which coincided with the widespread introduction of plasma exchange (PE) and intravenous immunoglobulin (IVIG). The results were analysed by comparing 52 patients admitted in the first decade (1991-2000; Group 1) with 58 patients admitted between 2001-2014 (Group 2). Patients in both groups were comparable with respect to age and sex, and had a similar incidence and range of ICU complications...
January 16, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28064139/neurological-adverse-events-associated-with-immune-checkpoint-inhibitors-review-of-the-literature
#5
REVIEW
S Cuzzubbo, F Javeri, M Tissier, A Roumi, C Barlog, J Doridam, C Lebbe, C Belin, R Ursu, A F Carpentier
Immune checkpoint inhibitors (ICIs) targeting CTLA4 and PD1 constitute a promising class of cancer treatment but are associated with several immune-related disorders. We here review the literature reporting neurological adverse events (nAEs) associated with ICIs. A systematic search of literature, up to February 2016, mentioning nAEs in patients treated with ICIs was conducted. Eligible studies included case reports and prospective trials. One case seen in our ward was also added. Within the 59 clinical trials (totalling 9208 patients) analysed, the overall incidence of nAEs was 3...
January 5, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28063544/the-prevention-of-early-onset-neonatal-group-b-streptococcal-disease
#6
Deborah Money, Victoria M Allen
OBJECTIVE: To review the evidence in the literature and to provide recommendations on the management of pregnant women in labour for the prevention of early-onset neonatal group B streptococcal disease. The key revisions in this updated guideline include changed recommendations for regimens for antibiotic prophylaxis, susceptibility testing, and management of women with pre-labour rupture of membranes. OUTCOMES: Maternal outcomes evaluated included exposure to antibiotics in pregnancy and labour and complications related to antibiotic use...
December 2016: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28058206/zika-virus-disease-for-neurologists
#7
REVIEW
Daniel E Smith, J David Beckham, Kenneth L Tyler, Daniel M Pastula
PURPOSE OF REVIEW: Zika virus (ZIKV) was not initially thought to be an important cause of neurologic disease, but with the recent epidemic in the Western Hemisphere, there is a growing body of evidence for possible neurologic complications. This review discusses these in addition to what is known about modes of transmission, testing for the virus, as well as future directions. RECENT FINDINGS: ZIKV disease has been associated with microcephaly and congenital eye disease in infants, as well as with Guillain-Barré syndrome, uveitis, myelitis, and meningoencephalitis in adults...
December 2016: Neurology. Clinical Practice
https://www.readbyqxmd.com/read/28047716/su-f-t-519-is-geometry-based-setup-sufficient-for-all-of-the-head-and-neck-treatment-cases-a-feasibility-study-towards-the-dose-based-setup
#8
S Lee, S Chen, B Zhang, H Xu, K Prado, W D'Souza, B Yi
PURPOSE: This study compares the geometric-based setup (GBS) which is currently used in the clinic to a novel concept of dose-based setup (DBS) of head and neck (H&N) patients using cone beam CT (CBCT) of the day; and evaluates the clinical advantages. METHODS: Ten H&N patients who underwent re-simulation and re-plan due to noticeable anatomic changes during the course of the treatments were retrospectively reviewed on dosimetric changes in the assumption of no plan modification was performed...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045901/zika-virus-infection-as-a-cause-of-congenital-brain-abnormalities-and-guillain-barr%C3%A3-syndrome-systematic-review
#9
Fabienne Krauer, Maurane Riesen, Ludovic Reveiz, Olufemi T Oladapo, Ruth Martínez-Vega, Teegwendé V Porgo, Anina Haefliger, Nathalie J Broutet, Nicola Low
BACKGROUND: The World Health Organization (WHO) stated in March 2016 that there was scientific consensus that the mosquito-borne Zika virus was a cause of the neurological disorder Guillain-Barré syndrome (GBS) and of microcephaly and other congenital brain abnormalities based on rapid evidence assessments. Decisions about causality require systematic assessment to guide public health actions. The objectives of this study were to update and reassess the evidence for causality through a rapid and systematic review about links between Zika virus infection and (a) congenital brain abnormalities, including microcephaly, in the foetuses and offspring of pregnant women and (b) GBS in any population, and to describe the process and outcomes of an expert assessment of the evidence about causality...
January 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28027278/group-b-streptococcal-colonization-among-pregnant-women-in-delhi-india
#10
Manu Chaudhary, Marcia A Rench, Carol J Baker, Pushpa Singh, Charoo Hans, Morven S Edwards
BACKGROUND: Little is known regarding maternal group B streptococcal (GBS) colonization prevalence and capsular (CPS) serotype distribution among pregnant women in India. The objective of this prospective cohort study was to determine GBS recto-vaginal colonization prevalence in pregnant women at Dr. Ram Manohar Lohia Hospital in Delhi, India. METHODS: Literature review identified reports from India assessing GBS colonization prevalence in pregnant women. Rectal and vaginal swabs were inoculated into Strep B Carrot Broth™ and subcultured onto GBS Detect™ plates...
December 23, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28018472/concurrency-of-guillain-barre-syndrome-and-acute-transverse-myelitis-a-case-report-and-review-of-literature
#11
Orkun Tolunay, Tamer Çelik, Ümit Çelik, Mustafa Kömür, Zeynep Tanyeli, Abdurrahman Sönmezler
Guillain-Barré syndrome and acute transverse myelitis manifest as demyelinating diseases of the peripheral and central nervous system. Concurrency of these two disorders is rarely documented in literature. A 4-year-old girl presenting with cough, fever, and an impaired walking ability was admitted to hospital. She had no previous complaints in her medical history. A physical examination revealed lack of muscle strength of the lower extremities and deep tendon reflexes. MRI could not be carried out due to technical problems; therefore, both Guillain-Barré syndrome and acute transverse myelitis were considered for the diagnosis...
November 2016: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28001091/treatment-options-for-recurrent-high-grade-gliomas
#12
Harjus S Birk, Seunggu J Han, Nicholas A Butowski
High-grade gliomas are aggressive brain tumors encompassing Grade III and IV classifications. Of these, glioblastoma (GB) is the most malignant with a high rate of recurrence after initial resection. Although standard treatment does exist for newly diagnosed GBs, therapeutic strategies for recurrent GB are less solidified. However, mounting evidence describes the role of re-resection, bevacizumab, chemotherapy, targeted molecular therapies, immunotherapeutic approaches and radiotherapy in recurrent GB management...
January 2017: CNS Oncology
https://www.readbyqxmd.com/read/27997266/obesity-as-an-independent-risk-factor-for-group-b-streptococcal-colonization
#13
Mitchell D Alvareza, Akila Subramaniam, Ying Tang, Rodney K Edwards
OBJECTIVE: Approximately 25% of women are colonized with group B streptococcus (GBS). We assessed whether body mass index (BMI) is an independent risk factor for GBS colonization. STUDY DESIGN: We performed a retrospective cohort study using a previously collected database of women who delivered singleton gestations at term. Individual patient medical record review was undertaken to add GBS-related information to the database. Univariable logistic regression was used to assess the relationship between GBS colonization and BMI...
December 20, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27995511/zika-virus-disease-for-the-neurointensivist
#14
Daniel M Pastula, Julia C Durrant, Daniel E Smith, J David Beckham, Kenneth L Tyler
Zika virus (ZIKV) is a mosquito-borne and sexually transmitted flavivirus currently spreading throughout the Pacific and Western Hemisphere. ZIKV infection is often either asymptomatic or causes a self-limiting illness with symptoms such as rash, fever, myalgia, arthralgia, headache, or conjunctivitis. Rarely, ZIKV infection has been associated with conditions such as severe thrombocytopenia, microcephaly and other developmental abnormalities, acute polyneuropathy/Guillain-Barré syndrome, myelitis, meningoencephalitis, transient encephalopathy, provoked seizures, and various ophthalmologic conditions...
December 19, 2016: Neurocritical Care
https://www.readbyqxmd.com/read/27965105/factors-associated-with-sequelae-of-campylobacter-and-non-typhoidal-salmonella-infections-a-systematic-review
#15
Oluwaseun B Esan, Madison Pearce, Oliver van Hecke, Nia Roberts, Dylan R J Collins, Mara Violato, Noel McCarthy, Rafael Perera, Thomas R Fanshawe
Despite the significant global burden of gastroenteritis and resulting sequelae, there is limited evidence on risk factors for sequelae development. We updated and extended previous systematic reviews by assessing the role of antibiotics, proton pump inhibitors (PPI) and symptom severity in the development of sequelae following campylobacteriosis and salmonellosis. We searched four databases, including PubMed, from 1 January 2011 to 29 April 2016. Observational studies reporting sequelae of reactive arthritis (ReA), Reiter's syndrome (RS), irritable bowel syndrome (IBS) and Guillain-Barré syndrome (GBS) following gastroenteritis were included...
February 2017: EBioMedicine
https://www.readbyqxmd.com/read/27964705/biological-drugs-in-guillain-barr%C3%A3-syndrome-an-update
#16
Nazgol Motamed-Gorji, Nassim Matin, Omidreza Tabatabaie, Piero Pavone, Catia Romano, Raffaele Falsaperla, Giovanna Vitaliti
BACKGROUND: Guillain-Barré Syndrome (GBS) is currently considered the most common global cause of acute flaccid paralysis. Currently, standard therapy for Guillain-Barré Syndrome includes intravenous immunoglobulin or plasma exchange. Despite medical advances regarding these treatments many patients treated with them do not reach full recovery. Therefore, during last decades several biological agents have attracted the attentions from researchers and various studies have investigated their role in Guillain-Barré Syndrome...
December 13, 2016: Current Neuropharmacology
https://www.readbyqxmd.com/read/27927917/zika-virus-testing-considerations-lessons-learned-from-the-first-eighty-real-time-rt-pcr-positive-cases-diagnosed-in-new-york-state
#17
Kirsten St George, Inderbir S Sohi, Elizabeth M Dufort, Amy B Dean, Jennifer L White, Ronald Limberger, Jamie N Sommer, Stephanie Ostrowski, Susan J Wong, P Bryon Backenson, Daniel Kuhles, Debra Blog, Jill Taylor, Brad Hutton, Howard A Zucker
The performance and interpretation of laboratory tests for Zika virus (ZKV) continue to be evaluated. Serology is cross-reactive, laborious and frequently difficult to interpret and serum was initially solely recommended for molecular diagnosis. ZKV testing was initiated January 2016 in New York State for symptomatic patients, pregnant women, their infants, and patients with Guillain-Barré Syndrome, who traveled to areas with ZKV transmission. Subsequently, eligibility was expanded to pregnant women with sexual partners with similar travel history...
December 7, 2016: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/27923188/electrophysiology-in-fisher-syndrome
#18
REVIEW
Satoshi Kuwabara, Yukari Sekiguchi, Sonoko Misawa
Fisher syndrome (FS), a variant of Guillain-Barré syndrome (GBS), is characterized by the clinical triad of ophthalmoplegia, ataxia, and areflexia. The lesion sites for these unique clinical features include the oculomotor nerves and group 1a neurons in the dorsal root ganglion, and the presence of FS is determined by the expression of ganglioside GQ1b in the human nervous system. Neurophysiological findings suggest that ataxia and areflexia are due to an impaired proprioceptive afferent system. Typically, the soleus H-reflex is absent and a body-sway analysis using posturography shows a 1-Hz peak, which indicates proprioception dysfunction...
January 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27916750/-pathophysiology-of-ataxia-in-fisher-syndrome
#19
Satoshi Kuwabara
Fisher syndrome is regarded as a peculiar inflammatory neuropathy associated with ophthalmoplegia, ataxia, and areflexia. The disorder is associated with preceding infection, cerebrospinal fluid albumino-cytological dissociation, and spontaneous recovery, and regarded as a variant of Guillain-Barré syndrome. The discovery of anti-GQ1b IgG antibodies led to dramatic advances in understanding the pathophysiology of Fisher syndrome. The lesions in Fisher syndrome are determined by expression of ganglioside GQ1b in the human nervous system...
December 2016: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/27913223/hepatitis-e-virus-infection-beyond-the-liver
#20
REVIEW
S Pischke, J Hartl, S D Pas, A W Lohse, B C Jacobs, A A van der Eijk
Hepatitis E virus (HEV) infections are not limited to the liver but may also affect other organs. Several diseases, including Guillain-Barré syndrome, neuralgic amyotrophy, glomerulonephritis, cryoglobulinemia, pancreatitis, lymphoma, thrombopenia, meningitis, thyreoiditis and myocarditis have been observed in the context of hepatitis E. To date the definite pathophysiological links between HEV and extrahepatic manifestations are not yet established. However, it is suggested that HEV-infection might be causative based on serological studies, case series, in vitro data and animal models...
November 29, 2016: Journal of Hepatology
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