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https://www.readbyqxmd.com/read/29346650/persistence-of-zika-virus-after-birth-clinical-virological-neuroimaging-and-neuropathological-documentation-in-a-5-month-infant-with-congenital-zika-syndrome
#1
Leila Chimelli, Sheila Moura Pone, Elyzabeth Avvad-Portari, Zilton Farias Meira Vasconcelos, Andrea Araújo Zin, Daniela Prado Cunha, Nathalia Raposo Thompson, Maria Elisabeth Lopes Moreira, Clayton A Wiley, Marcos Vinicius da Silva Pone
During the Zika epidemic in Brazil, a baby was born at term with microcephaly and arthrogryposis. The mother had Zika symptoms at 10 weeks of gestation. At 17 weeks, ultrasound showed cerebral malformation and ventriculomegaly. At 24 weeks, the amniotic fluid contained ZIKV RNA and at birth, placenta and maternal blood were also positive using RT-qPCR. At birth the baby urine contained ZIKV RNA, whereas CSF at birth and urine at 17 days did not. Seizures started at 6 days. EEG was abnormal and CT scan showed cerebral atrophy, calcifications, lissencephaly, ventriculomegaly, and cerebellar hypoplasia...
January 13, 2018: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/29346387/inferring-the-risk-factors-behind-the-geographical-spread-and-transmission-of-zika-in-the-americas
#2
Lauren M Gardner, András Bóta, Karthik Gangavarapu, Moritz U G Kraemer, Nathan D Grubaugh
BACKGROUND: An unprecedented Zika virus epidemic occurred in the Americas during 2015-2016. The size of the epidemic in conjunction with newly recognized health risks associated with the virus attracted significant attention across the research community. Our study complements several recent studies which have mapped epidemiological elements of Zika, by introducing a newly proposed methodology to simultaneously estimate the contribution of various risk factors for geographic spread resulting in local transmission and to compute the risk of spread (or re-introductions) between each pair of regions...
January 18, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29346384/histoplasmosis-in-africa-an-emerging-or-a-neglected-disease
#3
REVIEW
Rita O Oladele, Olusola O Ayanlowo, Malcolm D Richardson, David W Denning
Histoplasmosis in Africa has markedly increased since the advent of the HIV/AIDS epidemic but is under-recognised. Pulmonary histoplasmosis may be misdiagnosed as tuberculosis (TB). In the last six decades (1952-2017), 470 cases of histoplasmosis have been reported. HIV-infected patients accounted for 38% (178) of the cases. West Africa had the highest number of recorded cases with 179; the majority (162 cases) were caused by Histoplasma capsulatum var. dubuosii (Hcd). From the Southern African region, 150 cases have been reported, and the majority (119) were caused by H...
January 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29345847/characterizing-the-temporal-evolution-of-the-hepatitis-c-virus-epidemic-in-pakistan
#4
Houssein H Ayoub, Zaina Al Kanaani, Laith J Abu-Raddad
Pakistan has the second largest number of hepatitis C virus (HCV) infections in the world. We assessed past, present, and future levels and trends of the HCV epidemic in Pakistan. An age-structured mathematical model was developed and analyzed to describe transmission dynamics over 1980-2050. The model was fitted to a nationally-representative survey and a comprehensive database of systematically-gathered HCV antibody (Ab) prevalence data. HCV Ab and chronic infection prevalences peaked at 5.3% and 3.9% in 2000, but were projected to decline to 4...
January 18, 2018: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/29344662/dengue-virus-1-ns5-genetic-variant-associated-with-a-severe-clinical-infection-possible-reduction-of-the-innate-immune-response-by-inhibition-of-interferon-type-1-and-the-janus-kinase-signal-transducer-and-activator-of-transcription-signaling-pathway
#5
Iván Delgado-Enciso, Uriel A López-Lemus, Jose A Valcarcel-Gamiño, Iram P Rodriguez-Sanchez, Salvador Valle-Reyes, Margarita L Martinez-Fierro, Valery Melnikov, José Guzmán-Esquivel, Felipe Vaca-Paniagua, Laura L Valdez-Velazquez, Luz M Baltazar-Rodriguez, Alejandro D Soriano-Hernandez, Brenda Paz-Michel, Francisco Espinoza-Gómez
Dengue virus (DENV) is currently considered as one of the most important mosquito-borne viral pathogens affecting humans. Genetic variations in viruses are likely to be a condition for more effective evasion of the immune system and resulting in severe clinical consequences. The DENV‑1 NS5 gene was sequenced to establish whether during an epidemic burst there were genetic variations of the virus and whether any variant was associated (through a case‑control design) with severe clinical behavior. A total of 31 patients positive for DENV‑1 were enrolled...
January 17, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29344632/factors-associated-with-outcomes-and-costs-after-pediatric-laparoscopic-cholecystectomy
#6
Gileh-Gol Akhtar-Danesh, Aristithes G Doumouras, Cecily Bos, Helene Flageole, Dennis Hong
Importance: The prevalence of pediatric cholelithiasis is increasing with the epidemic of childhood obesity. With this rise, the outcomes and costs of pediatric laparoscopic cholecystectomy become an important public health and economic concern. Objective: To assess patient and health system factors associated with the outcomes and costs after laparoscopic cholecystectomy among Canadian children. Design, Setting, and Participants: This was a retrospective, population-based study of children 17 years and younger undergoing laparoscopic cholecystectomy from April 1, 2008, until March 31, 2015...
January 17, 2018: JAMA Surgery
https://www.readbyqxmd.com/read/29344505/genome-wide-analysis-studies-and-chronic-kidney-disease
#7
REVIEW
Doloretta Piras, Magdalena Zoledziewska, Francesco Cucca, Antonello Pani
In recent years, the very high worldwide prevalence of chronic kidney disease (CKD) has led some authors to talk of an "epidemic." The progression of CKD varies considerably among individuals despite similar aetiologies, optimal blood pressure, and glycaemic control. Over the last decade, through genome-wide association studies (GWAS), more than 50 genetic loci have been identified in association with CKD. Understanding the genetic basis of CKD could provide a better knowledge of the biology of the involved pathways, thus potentially leading to novel tools for the diagnosis, prevention, and therapy of CKD...
December 2017: Kidney Diseases
https://www.readbyqxmd.com/read/29343583/structural-study-of-the-c-terminal-domain-of-non-structural-protein-1-from-japanese-encephalitis-virus
#8
Thanalai Poonsiri, Gareth S A Wright, Michael S Diamond, Lance Turtle, Tom Solomon, Svetlana V Antonyuk
Japanese encephalitis virus (JEV) is a mosquito-transmitted Flavivirus that is closely related to other emerging viral pathogens including dengue, West Nile (WNV) and Zika viruses. JEV infection can result in meningitis and encephalitis, which in severe cases cause permanent brain damage and death. JEV occurs predominantly in rural areas throughout Southeast Asia, the Pacific islands and the Far East, causing around 68,000 cases worldwide each year. In this study, we present a 2.1 Å resolution crystal structure of the C-terminal β-ladder domain of JEV non-structural protein 1 (NS1-C)...
January 17, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29343577/cellular-and-humoral-immunity-protect-against-vaginal-zika-virus-infection-in-mice
#9
Jason M Scott, Tania J Lebratti, Justin M Richner, Xiaoping Jiang, Estefania Fernandez, Haiyan Zhao, Daved H Fremont, Michael S Diamond, Haina Shin
Zika virus (ZIKV), which can cause devastating disease in fetuses of infected pregnant women, can be transmitted by mosquito inoculation and sexual routes. Little is known about immune protection against sexually transmitted ZIKV. In this study, we show that previous infection through intravaginal or subcutaneous routes with a contemporary Brazilian strain of ZIKV can protect against subsequent intravaginal challenge with a homologous strain. Both routes of inoculation induced high titers of ZIKV-specific and neutralizing antibody in serum and the vaginal lumen...
January 17, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29342444/scarlet-fever-epidemic-in-china-caused-by-streptococcus-pyogenes-serotype-m12-epidemiologic-and-molecular-analysis
#10
Yuanhai You, Mark R Davies, Melinda Protani, Liam McIntyre, Mark J Walker, Jianzhong Zhang
From 2011, Hong Kong and mainland China have witnessed a sharp increase in reported cases, with subsequent reports of epidemic scarlet fever in North Asia and the United Kingdom. Here we examine epidemiological data and investigate the genomic context of the predominantly serotype M12 Streptococcus pyogenes scarlet fever isolates from mainland China. Incident case data was obtained from the Chinese Nationwide Notifiable Infectious Diseases Reporting Information System. The relative risk of scarlet fever in recent outbreak years 2011-2016 was calculated using the median age-standardised incidence rate, compared to years 2003-2010 prior this outbreak...
January 11, 2018: EBioMedicine
https://www.readbyqxmd.com/read/29342389/a-neglected-epidemic
#11
EDITORIAL
Barry R Bloom
Imagine a global epidemic with more than 10 million new cases and 1.7 million deaths in a single year, far greater than the 28,600 cases and 11,315 deaths that were caused by Ebola virus disease in West Africa in 2014 and 2015. In addition, this imagined epidemic affects every country and kills..
January 18, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29342356/the-dark-side-of-total-synthesis-strategies-and-tactics-in-psychoactive-drug-production
#12
Schuyler A Chambers, Jenna M DeSousa, Eric D Huseman, Steven D Townsend
Humankind has used and abused psychoactive drugs for millennia. Formally, a psychoactive drug is any agent that alters cognition and mood. The term "psychotropic drug" is neutral and describes the entire class of substrates, licit and illicit, of interest to governmental drug policy. While these drugs are prescribed for issues ranging from pain management to anxiety, they are also used recreationally. In fact, the current opioid epidemic is the deadliest drug crisis in American history. While the topic is highly politicized with racial, gender, and socioeconomic elements, there's no denying the toll drug mis- and overuse is taking on this country...
January 17, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29342269/a-silent-epidemic-the-prevalence-incidence-and-persistence-of-mycoplasma-genitalium-among-young-asymptomatic-high-risk-women-in-the-united-states
#13
Arlene C Seña, Jeannette Y Lee, Jane Schwebke, Susan S Philip, Harold C Wiesenfeld, Anne M Rompalo, Robert L Cook, Marcia M Hobbs
Background: Mycoplasma genitalium (MG) is a sexually transmitted infection (STI) that can result in pelvic inflammatory disease and adverse pregnancy outcomes. We analyzed data collected from a prospective study of asymptomatic bacterial vaginosis (BV) to determine the natural history of MG. Methods: Women aged 15-25 years, with ≥2 STI risk factors and asymptomatic BV were recruited from 10 sites throughout the United States. Vaginal swabs were collected at enrollment, and by home-based testing every 2 months over 12 months...
January 12, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29342162/comparison-of-diagnostic-methods-to-detect-histoplasma-capsulatum-in-serum-and-blood-samples-from-aids-patients
#14
Katia Cristina Dantas, Roseli Santos de Freitas, Marcos Vinicius da Silva, Paulo Ricardo Criado, Olinda do Carmo Luiz, Adriana Pardini Vicentini
BACKGROUND: Although early and rapid detection of histoplasmosis is essential to prevent morbidity and mortality, few diagnostic tools are available in resource-limited areas, especially where it is endemic and HIV/AIDS is also epidemic. Thus, we compared conventional and molecular methods to detect Histoplasma capsulatum in sera and blood from HIV/AIDS patients. METHODOLOGY: We collected a total of 40 samples from control volunteers and patients suspected of histoplasmosis, some of whom were also infected with other pathogens...
2018: PloS One
https://www.readbyqxmd.com/read/29341945/lessons-about-causes-and-management-of-an-ebola-outbreak
#15
Aida Elargoubi, Anis W Belhaj Khelifa, Ons Haddad, Salma Mhalla, Nabil Sakly, Maha Mastouri
Ebola virus disease (EVD) is one of the deadliest viral diseases. It is characterized by a high mortality rate due to the lack of effective and safe treatments or vaccines and its ability to spread at an unstoppable pace. The West Africa outbreak ended but the disease may strike again at any time. The latest epidemic was, by far, the deadliest to date. The most concern was why this outbreak was so different from the previous ones. We proposed in this review firstly to summarize the principal causes of its unprecedented spread and secondly to identify the steps for an effective management approach of a future Ebola outbreak...
December 20, 2017: Folia Medica
https://www.readbyqxmd.com/read/29341835/increasing-our-understanding-of-an-overlooked-public-health-epidemic-traumatic-brain-injuries-in-women-subjected-to-intimate-partner-violence
#16
Eve M Valera
No abstract text is available yet for this article.
January 17, 2018: Journal of Women's Health
https://www.readbyqxmd.com/read/29341607/in-vitro-pharmacokinetic-optimizations-of-am2-s31n-channel-blockers-led-to-the-discovery-of-slow-binding-inhibitors-with-potent-antiviral-activity-against-drug-resistant-influenza-a-viruses
#17
Yuanxiang Wang, Yanmei Hu, Shuting Xu, Yongtao Zhang, Rami Musharrafieh, Raymond Kin Hau, Chunlong Ma, Jun Wang
Influenza viruses are respiratory pathogens that are responsible for both seasonal influenza epidemics and occasional influenza pandemics. The narrow therapeutic window of oseltamivir, coupled with the emergence of drug resistance, calls for the next-generation of antivirals. With our continuous interest in developing AM2-S31N inhibitors as oral influenza antivirals, we report here the progress of optimizing the in vitro pharmacokinetic (PK) properties of AM2-S31N inhibitors. Several AM2-S31N inhibitors, including compound 10b, were discovered to have potent channel blockage, single to submicromolar antiviral activity, and favorable in vitro PK properties...
January 17, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29341529/-when-the-ward-overflows%C3%A2-the-impact-of-outlying-beds-on-patient-care
#18
Valérie Mosimann, Olivier Lamy, Julien Castioni
Due to the chronic lack of beds in hospitals, patients are often hospitalized in other departments (outlier patients), with a responsible physician working in another department. This causes increased thromboembolics risks, nosocomial infections, falls and delirium in the elderly, morbidity and mortality. Outlier patients, compared to standard patients, stay longer in the emergency department and their discharge documents are available later. Outlying is used daily in the CHUV hospital and new strategies are elaborated to manage patient flow, especially during the flu epidemic...
January 17, 2018: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29341490/containing-influenza-outbreaks-with-antiviral-use-in-long-term-care-facilities-in-taiwan-2008-2014
#19
Hao-Yuan Cheng, Wan-Chin Chen, Yu-Ru Chou, Angela Song-En Huang, Wan-Ting Huang
BACKGROUNDS: Influenza can spread rapidly in long-term care facilities (LTCFs) and residents are usually at higher risk for influenza infections. OBJECTIVE: Our study aimed to evaluate the effectiveness of antiviral interventions on outbreak control. METHODS: Taiwan Centers for Disease Control used a syndromic surveillance system to monitor outbreaks in LTCFs. Local public health authorities verified those outbreaks and logged reports to the Epidemic Investigation Report Files Management System (EIRFMS)...
January 17, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29341398/what-are-the-outcomes-of-declining-a-phs-increased-risk-liver-donor-for-patients-on-the-liver-transplant-waiting-list
#20
Kristopher P Croome, David D Lee, Surakit Pungpapong, Andrew P Keaveny, C Burcin Taner
INTRODUCTION: The tragedy of the national opioid epidemic has resulted in a significant increase in the number of opioid related deaths and accordingly an increase in the number of potential donors designated PHS increased risk. Previous studies have demonstrated reluctance to utilize these PHS organs and as a result, higher discard rates for these organs have been observed. METHODS: All patients listed for LT in the United States from January 2005 to December 2016 were investigated...
January 17, 2018: Liver Transplantation
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