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https://www.readbyqxmd.com/read/28343247/development-of-a-qtl-environment-based-predictive-model-for-node-addition-rate-in-common-bean
#1
Li Zhang, Salvador A Gezan, C Eduardo Vallejos, James W Jones, Kenneth J Boote, Jose A Clavijo-Michelangeli, Mehul Bhakta, Juan M Osorno, Idupulapati Rao, Stephen Beebe, Elvin Roman-Paoli, Abiezer Gonzalez, James Beaver, Jaumer Ricaurte, Raphael Colbert, Melanie J Correll
This work reports the effects of the genetic makeup, the environment and the genotype by environment interactions for node addition rate in an RIL population of common bean. This information was used to build a predictive model for node addition rate. To select a plant genotype that will thrive in targeted environments it is critical to understand the genotype by environment interaction (GEI). In this study, multi-environment QTL analysis was used to characterize node addition rate (NAR, node day(- 1)) on the main stem of the common bean (Phaseolus vulgaris L)...
March 25, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28342876/increased-activity-of-unlinked-zika-virus-ns2b-ns3-protease-compared-to-linked-zika-virus-protease
#2
Benjamin D Kuiper, Kristin Slater, Nicholas Spellmon, Joshua Holcomb, Prasanna Medapureddy, Kendall M Muzzarelli, Zhe Yang, Reuben Ovadia, Franck Amblard, Iulia A Kovari, Raymond F Schinazi, Ladislau C Kovari
Zika virus (ZIKV) is a flavivirus spread by daytime-active Aedes spp. mosquitoes such as A. aegypti and A. albopictus. Previously thought to be a mild infection, the latest ZIKV outbreak in the Americas is causally associated with more severe symptoms as well as severe birth defects, such as microcephaly. Currently no vaccine or antiviral exists. However, recent progress has demonstrated the viral NS2B/NS3 protease may be a suitable target for the development of small-molecule antiviral agents. To better understand the ZIKV protease, we expressed, purified, and characterized unlinked and linked NS2B/NS3 protease corresponding to an isolate from the recent outbreak in Puerto Rico...
March 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28335754/the-structural-and-health-policy-environment-for-delivering-integrated-hiv-and-substance-use-disorder-treatments-in-puerto-rico
#3
Jared A Leff, Diana Hernández, Paul A Teixeira, Pedro C Castellón, Daniel J Feaster, Allan E Rodriguez, Jorge L Santana-Bagur, Sandra Miranda De León, José Vargas Vidot, Lisa R Metsch, Bruce R Schackman
BACKGROUND: HIV prevalence in Puerto Rico is nearly twice that of the mainland United States, a level that was substantially fueled by injection drug use. Puerto Rico has a longstanding history of health provision by the public sector that directly affects how HIV and substance use disorder (SUD) treatment services are provided and funded. As part of pre-implementation research for a randomized trial of a community-level intervention to enhance HIV care access for substance users in San Juan, Puerto Rico, we sought to understand the structural and health policy environment for providing HIV and SUD treatments...
March 23, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28334724/incidence-of-multiple-sclerosis-in-puerto-rico-2014-a-population-based-study
#4
Angel Chinea, Carlos F Ríos-Bedoya, Cristina Rubi, Ivonne Vicente, Eduardo R Estades, Yatzka G Hernandez-Silvestrini
BACKGROUND: Multiple sclerosis (MS) affects millions of people worldwide. The estimates for MS incidence are difficult to obtain but are important for understanding MS etiology, developing prevention strategies, and service planning. This study is aimed at estimating the 2014 incidence of MS in Puerto Rico (PR). METHODS: The PR MS Foundation's registry was used as the data source. Neurologists, specialty pharmacies, MRI centers, health insurance companies, and the PR Department of Health identified MS cases missed by the registry...
March 24, 2017: Neuroepidemiology
https://www.readbyqxmd.com/read/28327126/characterization-and-mechanisms-of-anti-influenza-virus-metabolites-isolated-from-the-vietnamese-medicinal-plant-polygonum-chinense
#5
Thu Thi Tran, Meehyein Kim, Yejin Jang, Hye Won Lee, Hoa Thi Nguyen, Thanh Ngoc Nguyen, Hae Woong Park, Quang Le Dang, Jin-Cheol Kim
BACKGROUND: Polygonum chinense Linn. is a common medicinal plant in Southeast Asia and has been used in traditional medicine in Vietnam. The plant contains phytochemicals with various biological properties; however, its antiviral effect has not yet been demonstrated. This study was aimed to evaluate the anti-influenza virus activity of crude extracts of P. chinense, to characterize antiviral metabolites therefrom and to investigate their mechanisms of antiviral action. METHODS: The methanol (MeOH) extract and organic solvent layers of P...
March 21, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28326905/assistive-technology-unmet-needs-of-independent-living-older-hispanics-with-functional-limitations
#6
Elsa M Orellano-Colón, Marta Rivero-Méndez, Mauricio Lizama, Jeffrey W Jutai
PURPOSE: To identify: (1) the most frequently used assistive technology (AT) by a sample of community-living older Hispanics; (2) their AT needs; (3) the AT that would not be used by the simple; and (4) the factors associated with the willingness to use AT. MATERIALS AND METHODS: We used a cross-sectional descriptive study design with a purposive sample of 60 individuals 70 years and older living in Puerto Rico. Data collection tools included a socio-demographic questionnaire and the Assistive Technology Card Assessment...
March 22, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28322711/design-strategies-for-efficient-arbovirus-surveillance
#7
Samuel V Scarpino, Lauren Ancel Meyers, Michael A Johansson
As public health agencies struggle to track and contain emerging arbovirus threats, timely and efficient surveillance is more critical than ever. Using historical dengue data from Puerto Rico, we developed methods for streamlining and designing novel arbovirus surveillance systems with or without historical disease data.
April 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28301280/panblok-h1-advax-h1n1-2009pdm-vaccine-insights-into-rapid-development-of-an-delta-inulin-adjuvanted-recombinant-pandemic-influenza-vaccine
#8
Yoshikazu Honda-Okubo, Harinda Rajapaksha, Dimitar Sajkov, David Gordon, Manon M J Cox, Nikolai Petrovsky
Timely vaccine supply is critical during influenza pandemics but is impeded by current virus-based manufacturing methods. The 2009 H1N1/2009pdm 'swine flu' pandemic reinforced the need for innovation in pandemic vaccine design. We report on insights gained during rapid development of a pandemic vaccine based on recombinant haemagglutinin (rHA) formulated with Advax™ delta inulin adjuvant (Panblok-H1/Advax). Panblok-H1/Advax was designed and manufactured within 1 month of the pandemic declaration by WHO and successfully entered human clinical testing in under 3 months from first isolation and sequencing of the novel pandemic virus, requiring several major challenges to be overcome...
February 14, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28300201/identification-of-a-novel-locus-associated-with-skin-colour-in-african-admixed-populations
#9
Natalia Hernandez-Pacheco, Carlos Flores, Santos Alonso, Celeste Eng, Angel C Y Mak, Scott Hunstman, Donglei Hu, Marquitta J White, Sam S Oh, Kelley Meade, Harold J Farber, Pedro C Avila, Denise Serebrisky, Shannon M Thyne, Emerita Brigino-Buenaventura, William Rodriguez-Cintron, Saunak Sen, Rajesh Kumar, Michael Lenoir, Jose R Rodriguez-Santana, Esteban G Burchard, Maria Pino-Yanes
Skin pigmentation is a complex trait that varies largely among populations. Most genome-wide association studies of this trait have been performed in Europeans and Asians. We aimed to uncover genes influencing skin colour in African-admixed individuals. We performed a genome-wide association study of melanin levels in 285 Hispanic/Latino individuals from Puerto Rico, analyzing 14 million genetic variants. A total of 82 variants with p-value ≤1 × 10(-5) were followed up in 373 African Americans. Fourteen single nucleotide polymorphisms were replicated, of which nine were associated with skin colour at genome-wide significance in a meta-analysis across the two studies...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28285537/milestone-clinical-trials-of-the-national-surgical-adjuvant-breast-and-bowel-project-nsabp
#10
REVIEW
Priya Rastogi, D Lawrence Wickerham, Charles E Geyer, Eleftherios P Mamounas, Thomas B Julian, Norman Wolmark
The National Surgical Adjuvant Breast and Bowel Project (NSABP) has made significant contributions in reducing the extent of breast surgery and in improving outcomes of patients with early-stage breast cancer through the conduct of large randomized clinical trials evaluating local and systemic therapy. In 2014, the NSABP merged with two other US National Cancer Institute-funded cooperative groups, the Radiation Therapy Oncology Group (RTOG) and the Gynecologic Oncology Group (GOG), to form NRG Oncology. The combined organization has 218 member institutions with more than 600 affiliate centers located throughout the United States, Canada, Puerto Rico, and other international sites...
February 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28284616/mucosal-vaccination-of-conserved-sm2-ha2-and-cholera-toxin-subunit-a1-cta1-fusion-protein-with-poly-gamma-glutamate-chitosan-nanoparticles-pc-nps-induces-protection-against-divergent-influenza-subtypes
#11
Mohammed Y E Chowdhury, Tae-Hwan Kim, Md Bashir Uddin, Jae-Hoon Kim, C Y Hewawaduge, Zannatul Ferdowshi, Moon-Hee Sung, Chul-Joong Kim, Jong-Soo Lee
To develop a safe and effective mucosal vaccine that broad cross protection against seasonal or emerging influenza A viruses, we generated a mucosal influenza vaccine system combining the highly conserved matrix protein-2 (sM2), fusion peptide of hemagglutinin (HA2), the well-known mucosal adjuvant cholera toxin subunit A1 (CTA1) and poly-γ-glutamic acid (γ-PGA)-chitosan nanoparticles (PC NPs), which are safe, natural materials that are able to target the mucosal membrane as a mucosal adjuvant. The mucosal administration of sM2HA2CTA1/PC NPs could induce a high degree of systemic immunity (IgG and IgA) at the site of inoculation as well as at remote locations and also significantly increase the levels of sM2- or HA2-specific cell-mediated immune response...
March 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28284594/orally-administered-live-attenuated-salmonella-typhimurium-protects-mice-against-lethal-infection-with-h1n1-influenza-virus
#12
Nitin Machindra Kamble, Irshad Ahmed Hajam, John Hwa Lee
Pre-stimulation of toll-like receptors (TLRs) by agonists has been shown to increase protection against influenza virus infection. In this study, we evaluated the protective response generated against influenza A/Puerto Rico/8/1934 (PR8; H1N1) virus by oral and nasal administration of live attenuated Salmonella enterica serovar Typhimurium, JOL911 strain, in mice. Oral and nasal inoculation of JOL911 significantly increased the mRNA copy number of TLR-2, TLR4 and TLR5, and downstream type I interferon (IFN) molecules, IFN-α and IFN-β, both in peripheral blood mononuclear cells (PBMCs) and in lung tissue...
March 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28278327/chorioretinal-lesions-presumed-secondary-to-zika-virus-infection-in-an-immunocompromised-adult
#13
Christopher R Henry, Luma Al-Attar, Alexis M Cruz-Chacón, Janet L Davis
Importance: Zika virus has spread rapidly throughout the Americas since 2015. The public health implications of Zika virus infection lend special importance to identifying the virus in unsuspected hosts. Objective: To describe relevant imaging studies and clinical features of chorioretinal lesions that are presumably associated with Zika virus and that share analogous features with chorioretinal lesions reported in cases of Dengue fever and West Nile virus. Design, Setting, and Participants: This is a case report from an academic referral center in Miami, Florida, of a woman in her 60s from Guaynabo, Puerto Rico, who presented with reduced visual acuity and bilateral diffuse, subretinal, confluent, placoid, and multifocal chorioretinal lesions...
March 9, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28277362/access-to-contraception-in-the-context-of-zika-health-system-challenges-and-responses
#14
Blair G Darney, Abigail R A Aiken, Stephanie Küng
Women in areas of the Americas with endemic Aedes mosquito populations are at risk for exposure to Zika virus, which can cause fetal brain abnormalities and associated congenital microcephaly. Individual health care providers may encounter health system barriers to providing evidence-based care. We focus on Mexico and the state of Texas to highlight the role of health system factors in contraceptive access in the context of Zika and highlight efforts in Puerto Rico as an example of initiatives to improve access to contraception...
April 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28276056/second-family-provides-further-evidence-for-causation-of-steel-syndrome-by-biallelic-mutations-in-col27a1
#15
Shalini Kotabagi, Hitesh Shah, Anju Shukla, Katta M Girisha
Steel syndrome is a rare disorder of the skeleton characterized by facial dysmorphism, short stature, carpal coalition, dislocated radial heads, bilateral hip dislocation and vertical talus. Homozygous variants in COL27A1 was reported in an extending family from Puerto Rico. Here, we report a five years-old girl from a non-consanguineous family with facial dysmorphism, short stature, carpal coalition, dislocation of radial heads, bilateral hip dislocation, scoliosis and vertical talus. Exome sequencing identified two novel compound heterozygous variants c...
March 9, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28274854/mathematical-analysis-of-a-power-law-form-time-dependent-vector-borne-disease-transmission-model
#16
Tridip Sardar, Bapi Saha
In the last few years, fractional order derivatives have been used in epidemiology to capture the memory phenomena. However, these models do not have proper biological justification in most of the cases and lack a derivation from a stochastic process. In this present manuscript, using theory of a stochastic process, we derived a general time dependent single strain vector borne disease model. It is shown that under certain choice of time dependent transmission kernel this model can be converted into the classical integer order system...
March 6, 2017: Mathematical Biosciences
https://www.readbyqxmd.com/read/28271018/hepatitis-c-serosorting-among-people-who-inject-drugs-in-rural-puerto-rico
#17
Ian Duncan, Ric Curtis, Juan Carlos Reyes, Roberto Abadie, Bilal Khan, Kirk Dombrowski
Due to the high cost of treatment, preventative measures to limit Hepatitis C (HCV) transmission among people who inject drugs (PWID) are encouraged by many public health officials. A key one of these is serosorting, where PWID select risk partners based on concordant HCV status. Research on the general U.S. population by Smith et al. (2013) found that knowledge of one's own HCV status facilitated serosorting behaviors among PWID, such that respondents with knowledge of their own status were more likely to ask potential partners about their status prior to sharing risk...
June 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28266701/fortaleciendo-enlaces-strengthening-collaborations-to-build-institutional-capacity-for-re-entry-services-for-incarcerated-people-with-hiv-in-puerto-rico
#18
Verónica Tirado-Mercado, Carlos E Rodríguez-Díaz, Carmen Cosme-Pitre, Jacqueline Cruzado-Quiñones, Alison O Jordan
No abstract text is available yet for this article.
March 2017: Puerto Rico Health Sciences Journal
https://www.readbyqxmd.com/read/28266698/complications-associated-with-pediatric-supracondylar-humeral-fractures
#19
Ernesto Del Valle-Hernández, Pablo A Marrero-Barrera, David Beaton, Dalibel Bravo, Sergio Santiago, Humberto Guzmán-Pérez, Nestor Ramos-Alconini
OBJECTIVE: To measure pediatric supracondylar fracture epidemiology, fracture rate, and complications in the island's pediatric population. The study aims to compare our results to the national rates reported in the literature. METHODS: In this retrospective record review we examined 330 patients who underwent open reduction internal fixation or closed reduction percutaneous pinning in pediatric supracondylar fractures at the University Pediatric Hospital of Puerto Rico Medical Center (HOPU)...
March 2017: Puerto Rico Health Sciences Journal
https://www.readbyqxmd.com/read/28266697/are-stressful-life-events-sles-associated-with-the-utilization-of-substance-use-treatment-related-services
#20
Miguel A Cruz-Feliciano, Aimee Ferraro, Angela Witt Prehn
OBJECTIVE: This study described herein explored the association of stressful life events with the utilization of substance use treatment-related services among substance users living in Puerto Rico. METHODS: A secondary data analysis was conducted using data collected by a research project entitled Puerto Rico Drug Abuse Research Development Program II (PRDARDP II). The study population consisted of 378 individuals from 18 to 35 years of age who were residents of the San Juan metropolitan area and who presented evidence of substance use in the 30 days prior to the interview...
March 2017: Puerto Rico Health Sciences Journal
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