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Dee S, Brands L, Nerem J, Schelkopf A, Spronk G, Kikuti M, Corzo C, Havas K. Improvements in swine herd biosecurity reduce the incidence risk of porcine reproductive and respiratory syndrome virus in breeding herds in the Midwestern United States. J Am Vet Med Assoc 2024; 262:520-525. [PMID: 38183764 DOI: 10.2460/javma.23.08.0437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 12/06/2023] [Indexed: 01/08/2024]
Abstract
OBJECTIVE Porcine reproductive and respiratory syndrome (PRRS) is a significant disease of swine. The purpose of this study was to determine whether application of a comprehensive, science-based approach to breeding herd biosecurity, known as next-generation biosecurity (NGB), could reduce PRRS incidence risk across a large commercial production company. ANIMALS Pigs (381,404 sows across 76 breeding herds). METHODS From 2009 to 2020, the annual incidence risk of PRRS in sow farms managed by the same company averaged 33%, ranging from 20% to 50%. To measure the effect of NGB on PRRS incidence risk, a retrospective cohort study was conducted from July 1, 2021, to June 30, 2023, across breeding herds managed by the same company. During the analysis, 2 groups of herds emerged: those that implemented protocols for all phases of NGB (NGB COMPLETE), and those that implemented all described protocols of biosecurity except for air filtration (NGB INCOMPLETE). RESULTS During the 2-year assessment period, 56 breeding herds were classified as NGB COMPLETE, while 20 herds were NGB INCOMPLETE. The PRRS incidence risk in NGB COMPLETE herds was 8.9% as compared to 40.0% in NGB INCOMPLETE herds. From disease year 1 (July 1, 2021, to June 30, 2022) and disease year 2 (July 1, 2022, to June 30, 2023), system-wide PRRS incidence risk was 8.6% and 9.2%, respectively. The association between NGB status and PRRS incidence risk for the 2-year period was statistically significant at a P value of .006. CLINICAL RELEVANCE Results of the present report provided evidence that improvements in biosecurity result in lower PRRS incidence risk under large-scale commercial swine production conditions.
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Affiliation(s)
| | - Lisa Brands
- 2Pipestone Veterinary Services, Pipestone, MN
| | - Joel Nerem
- 2Pipestone Veterinary Services, Pipestone, MN
| | | | | | - Mariana Kikuti
- 3College of Veterinary Medicine, University of Minnesota, Saint Paul, MN
| | - Cesar Corzo
- 3College of Veterinary Medicine, University of Minnesota, Saint Paul, MN
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2
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Zhao M, Qi S, Sun Y, Zheng X. Comparison of polymerase chain reaction and next-generation sequencing with conventional urine culture for the diagnosis of urinary tract infections: A meta-analysis. Open Med (Wars) 2024; 19:20240921. [PMID: 38584848 PMCID: PMC10996999 DOI: 10.1515/med-2024-0921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 01/03/2024] [Accepted: 01/25/2024] [Indexed: 04/09/2024] Open
Abstract
The limitations of conventional urine culture methods can be avoided by using culture-independent approaches like polymerase chain reaction (PCR) and next-generation sequencing (NGS). However, the efficacy of these approaches in this setting is still subject to contention. PRISMA-compliant searches were performed on MEDLINE/PubMed, EMBASE, Web of Sciences, and the Cochrane Database until March 2023. The included articles compared PCR or NGS to conventional urine culture for the detection of urinary tract infections (UTIs). RevMan performed meta-analysis, and the Cochrane Risk of Bias Assessment Tool assessed study quality. A total of 10 selected studies that involved 1,291 individuals were included in this meta-analysis. The study found that PCR has a 99% sensitivity and a 94% specificity for diagnosing UTIs. Furthermore, NGS was shown to have a sensitivity of 90% for identifying UTIs and a specificity of 86%. The odds ratio (OR) for PCR to detect Gram-positive bacteria is 0.50 (95% confidence interval [CI] 0.41-0.61), while the OR for NGS to detect Gram-negative bacteria is 0.23 [95% CI 0.09-0.59]. UTIs are typically caused by Gram-negative bacteria like Escherichia coli and Gram-positive bacteria like Staphylococci and Streptococci. PCR and NGS are reliable, culture-free molecular diagnostic methods that, despite being expensive, are essential for UTI diagnosis and prevention due to their high sensitivity and specificity.
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Affiliation(s)
- Meng Zhao
- Department of Urology, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, 150001, China
| | - Shuang Qi
- Department of Pediatrics, Heilongjiang Provincial Hospital of Traditional Chinese Medicine, Harbin, Heilongjiang Province, 150001, China
| | - Yinuo Sun
- Department of Urology, First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, 150001, China
| | - Xue Zheng
- Department of Nephrology, Harbin Jingen Nephropathy Hospital, Harbin, Heilongjiang Province, 150001, China
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3
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Chen J, Grow S, Iturriza-Gómara M, Hausdorff WP, Fix A, Kirkwood CD. The Challenges and Opportunities of Next-Generation Rotavirus Vaccines: Summary of an Expert Meeting with Vaccine Developers. Viruses 2022; 14:v14112565. [PMID: 36423174 PMCID: PMC9699535 DOI: 10.3390/v14112565] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 11/08/2022] [Indexed: 11/22/2022] Open
Abstract
The 2nd Next Generation Rotavirus Vaccine Developers Meeting, sponsored by PATH and the Bill and Melinda Gates Foundation, was held in London, UK (7-8 June 2022), and attended by vaccine developers and researchers to discuss advancements in the development of next-generation rotavirus vaccines and to consider issues surrounding vaccine acceptability, introduction, and uptake. Presentations included updates on rotavirus disease burden, the impact of currently licensed oral vaccines, various platforms and approaches for next generation rotavirus vaccines, strategies for combination pediatric vaccines, and the value proposition for novel parenteral rotavirus vaccines. This report summarizes the information shared at the convening and poses various topics worthy of further exploration.
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Affiliation(s)
- Jessie Chen
- Enteric & Diarrheal Diseases, Bill & Melinda Gates Foundation, Seattle, WA 98109, USA
- Correspondence:
| | - Stephanie Grow
- Enteric & Diarrheal Diseases, Bill & Melinda Gates Foundation, Seattle, WA 98109, USA
| | | | - William P. Hausdorff
- Faculty of Medicine, Université Libre de Bruxelles, 1050 Brussels, Belgium
- PATH, Washington, DC 20001, USA
| | | | - Carl D. Kirkwood
- Enteric & Diarrheal Diseases, Bill & Melinda Gates Foundation, Seattle, WA 98109, USA
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Abstract
As it begins to enter the clinic, regenerative medicine has the potential to revolutionize healthcare. Although there exists a growing need for individuals well-versed in the practice of regenerative medicine, few undergraduate institutions offer opportunities to learn about the topic. This article highlights the conception of two novel undergraduate courses in regenerative medicine developed through collaboration between students and faculty at our University to fill this void in the undergraduate curriculum. Lectures from scientists, healthcare professionals, regulatory experts and biotechnology leaders introduced students to regenerative medicine research and the translational process, and a certificate program incorporating relevant coursework and research experience is in development. This pipeline will guide promising undergraduate students to the field of regenerative medicine.
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Affiliation(s)
- Aaron Gabriel W Sandoval
- University of Florida Center for Regenerative Medicine, Gainesville, FL 32610, USA.,Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, CB2 0AW, UK.,Faculty of Life Sciences & Medicine, King's College London, London, SE1 1UL, UK
| | - Dmitry O Traktuev
- University of Florida Center for Regenerative Medicine, Gainesville, FL 32610, USA.,Division of Cardiovascular Medicine, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Keith L March
- University of Florida Center for Regenerative Medicine, Gainesville, FL 32610, USA.,Division of Cardiovascular Medicine, University of Florida College of Medicine, Gainesville, FL 32610, USA
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Cancelas JA, Nestheide S, Rugg N, Eckerman A, Macdonald VW, L Charles M, Markstrom L, Atkinson AJ, King MR, Snyder M, Burgess D, Murto J, Valiyaveettil MK, C Pehta J, Penegor SA. Characterization and first-in-human clinical dose-escalation safety evaluation of a next-gen human freeze-dried plasma. Transfusion 2021; 62:406-417. [PMID: 34951486 PMCID: PMC9306459 DOI: 10.1111/trf.16756] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 10/27/2021] [Accepted: 11/16/2021] [Indexed: 12/17/2022]
Abstract
Background Early plasma transfusion is life‐saving for bleeding trauma patients. Freeze‐dried plasma (FDP) provides unique formulation advantages for infusion in the prehospital setting. We describe characterization and clinical safety data of the first, next‐generation FDP stored in plastic bags with rapid reconstitution. Study design and methods Coagulation and chemistry parameters on 155 pairs of fresh frozen plasma (FFP) and their derivative FDP units were compared. Next, a first‐in‐human, dose‐escalation safety evaluation of FDP, involving 24 healthy volunteers who donated either whole blood or apheresis plasma to create autologous FDP, was performed in three dose cohorts (270, 540, and 810 ml) and adverse events (AEs) were monitored. Cohort 3 was randomized, double‐blind with a cross‐over arm that compared FDP versus FFP using descriptive analysis for AEs, coagulation, hematology, and chemistry parameters. Results FDP coagulation factors, clotting times, and product quality (pH, total protein, and osmolality) post‐lyophilization were preserved. FDP infusions, of up to 810 ml per subject, were found to be safe and with no serious AEs (SAEs) related to FDP. The average time to reconstitute FDP was 67 s (range: 43–106). No differences in coagulation parameters or thrombin activation were detected in subjects infused with 810 ml of FDP compared with FFP. Conclusion This first next‐generation FDP product preserves the potency and safety of FFP in a novel rugged, compressible, plastic container, for rapid transfusion, allowing rapid access to plasma in resuscitation protocols for therapy in acute traumatic hemorrhage. See editorial on page 257–260, in this issue
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Affiliation(s)
- Jose A Cancelas
- Hoxworth Blood Center, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Shawnagay Nestheide
- Hoxworth Blood Center, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Neeta Rugg
- Hoxworth Blood Center, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | - Victor W Macdonald
- US Army Medical Materiel Development Activity (USAMMDA), Ft. Detrick, Maryland, USA
| | | | | | - Andrew J Atkinson
- US Army Medical Materiel Development Activity (USAMMDA), Ft. Detrick, Maryland, USA
| | | | | | | | - James Murto
- Vascular Solutions LLC, Minneapolis, Minnesota, USA
| | | | - Joan C Pehta
- The Alpha Bio Group, New Canaan, Connecticut, USA
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6
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Abstract
The biology of regenerative medicine has steadily matured, providing the foundation for randomized clinical trials and translation into validated applications. Today, the growing regenerative armamentarium is poised to impact disease management, yet a gap in training next-generation healthcare providers, equipped to adopt and deliver regenerative options, has been exposed. This special report highlights a multiyear experience in developing and deploying a comprehensive regenerative curriculum for medical trainees. For academicians and institutions invested in establishing a formalized regenerative medicine syllabus, the Regenerative Medicine and Surgery course provides a patient-focused prototype for next-generation learners, offering a dedicated educational experience that encompasses discovery, development and delivery of regenerative solutions. Built with the vision of an evolving regenerative care model, this transdisciplinary endeavor could serve as an adoptable education portal to advance the readiness of the emergent regenerative healthcare workforce globally.
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Affiliation(s)
- Saranya P Wyles
- Center for Regenerative Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Dermatology, Mayo Clinic, Rochester, MN 55905, USA.,Department of Molecular Pharmacology & Experimental Therapeutics, Rochester, MN 55905, USA
| | - Dileep D Monie
- Mayo Clinic Alix School of Medicine, Rochester, MN 55905, USA
| | | | - Fredric B Meyer
- Mayo Clinic Alix School of Medicine, Rochester, MN 55905, USA.,Department of Neurologic Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Richard E Hayden
- Center for Regenerative Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Otolaryngology, Mayo Clinic, Phoenix, AZ 85054, USA
| | - Andre Terzic
- Center for Regenerative Medicine, Mayo Clinic, Rochester, MN 55905, USA.,Department of Molecular Pharmacology & Experimental Therapeutics, Rochester, MN 55905, USA.,Department of Cardiovascular Medicine, Rochester, MN 55905, USA.,Department of Clinical Genomics, Mayo Clinic, Rochester, MN 55905, USA
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Shi C, Zhang S, Hu J, Zhang Y. Effects of Non-Lethal High-Temperature Stress on Bradysia odoriphaga (Diptera: Sciaridae) Larval Development and Offspring. Insects 2020; 11:E159. [PMID: 32121534 PMCID: PMC7142861 DOI: 10.3390/insects11030159] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/24/2020] [Accepted: 02/28/2020] [Indexed: 11/18/2022]
Abstract
Throughout China, the dipteran pest Bradysia odoriphaga significantly reduces Chinese chive production; therefore, identifying conditions that influence its growth and development is crucial for developing ecological regulation strategies. In this study, different non-lethal high temperatures and treatment durations were used to stress the third-instar larvae of B. odoriphaga, and the effects of this treatment on their growth and offspring were recorded and analyzed. The results showed that the average larval mortality increased with increased temperature and prolonged exposure times. After stress treatment at 40 °C for 2 h, 100% of larvae died within 5 days, which was not significantly different from the 5-day average larval mortality (90.66%) after stress at 37 °C for 4 h, but significantly higher than the 5-day average larval mortality (72.00%) after stress at 40 °C for 1 h. After 5 days, all still-living larvae could pupate, and there was no significant difference in average pupal period after pupation. However, the eclosion rate of subsequent pupae decreased with increased temperature and prolonged exposure times, and were only 43.00% and 42.73% after larvae were stressed at 37 °C for 4 h and 40 °C for 1 h, respectively. After eclosion into adults, there was no significant difference in the lifespan of unmated female adults, while the lifespan of unmated male adults was significantly reduced to 1.67 d and 2 d after larvae were stressed at 37 °C for 4 h and 40 °C for 1 h, respectively. However, there was no significant difference in male and female adult longevity after mating. There was no significant difference in oviposition or egg hatchability. This indicates that non-lethal high temperature at 37 °C for 4 h can hinder development and allow control of B. odoriphaga. There is great potential for non-lethal high temperature to be applied in the field to control agricultural pests.
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Affiliation(s)
- Caihua Shi
- Forewarning and Management of Agricultural and Forestry Pests, Hubei Engineering Technology Center, Yangtze University, Jingzhou 434025, Hubei, China; (C.S.); (S.Z.)
| | - Seng Zhang
- Forewarning and Management of Agricultural and Forestry Pests, Hubei Engineering Technology Center, Yangtze University, Jingzhou 434025, Hubei, China; (C.S.); (S.Z.)
| | - Jingrong Hu
- Forewarning and Management of Agricultural and Forestry Pests, Hubei Engineering Technology Center, Yangtze University, Jingzhou 434025, Hubei, China; (C.S.); (S.Z.)
| | - Youjun Zhang
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Abstract
Background Regenerative technologies aim to restore organ form and function. Technological advances in regenerative treatments have led to patients increasingly seeking these therapies. The readiness of nursing to fully contribute to this emerging healthcare field is uncertain. Purpose The goal of this discipline‐oriented overview is to enhance awareness in the nursing community regarding regenerative science, and to provide suggestions for nursing research contributions and practice implications. Methods Evolving and applied cutting‐edge therapies, such as regenerative immunotherapies with chimeric antigen receptor expressing T lymphocytes, are highlighted in the context of emerging opportunities for nurses in practice and research. Discussion Next generation nurses will increasingly be at the forefront of new therapies poised to make chronic illnesses curable, thus restoring health and function to diverse groups of individuals. Clinical Relevance The regenerative care model imposes on the nursing community the imperative to (a) increase research awareness; (a) educate, develop, and deploy a skilled nursing workforce; (c) integrate regenerative technologies into nursing practice; and (d) embrace the regenerative technologies horizon as a future in health care.
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Affiliation(s)
- Linda L Chlan
- Theta XI and Zeta, Associate Dean for Nursing Research, Professor of Nursing, Mayo Clinic, Rochester, MN, USA
| | - Cindy Tofthagen
- Delta Beta at Large, Nurse Scientist, Mayo Clinic, Jacksonville, FL, USA
| | - Andre Terzic
- Professor of Medicine and Director, Center for Regenerative Medicine, Mayo Clinic, Rochester, MN, USA
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9
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Hetherington FM, Nützmann HW. Embracing the next generation of plant scientists. New Phytol 2018; 217:504-506. [PMID: 29271035 DOI: 10.1111/nph.14963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- Flora M Hetherington
- Department of Biosciences, Durham University, Stockton Road, Durham, DH1 3LE, UK
| | - Hans-Wilhelm Nützmann
- The Milner Centre for Evolution, Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
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Abstract
The emerging, next generation of people engaged as managers in agriculture differs from the "baby boomer" farm generation that relishes certain traditions and an agrarian lifestyle. These futuristic producers and managers have been raised in a society that promulgates safety environment rules. They have witnessed lives saved by automobile seatbelts and lives improved from clean air and water. They know the basic cost of effective safety compliance is relatively fixed, regardless of the number of employees, and they are willing to invest resources that ensure a culture of safety, because it is economically beneficial, socially responsible, and probably required by the companies to whom they need to market their products. These same millennials understand that society and their customers will not continue to tolerate the high rate of agricultural injuries and deaths indefinitely. Public policy as a means to improve agricultural workers' safety and health is likely to be less resisted by the next generation of farmers, ranchers, producers, and agribusiness leaders who, regardless of legal or regulatory pressure, will implement internal business policies emphasizing safety, health, sustainability, and social justness as they understand it.
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Affiliation(s)
- Frank A Gasperini
- a Agricultural Safety and Health Council of America (ASHCA) , Leesburg , Virginia , USA.,b National Council of Agricultural Employers (NCAE) , Washington , DC , USA
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Poordad F, Landis CS, Asatryan A, Jackson DF, Ng TI, Fu B, Lin C, Yao B, Kort J. High antiviral activity of NS5A inhibitor ABT-530 with paritaprevir/ritonavir and ribavirin against hepatitis C virus genotype 3 infection. Liver Int 2016; 36:1125-32. [PMID: 26778412 PMCID: PMC5067610 DOI: 10.1111/liv.13067] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 01/07/2016] [Indexed: 12/28/2022]
Abstract
BACKGROUND & AIMS ABT-530 is a next-generation hepatitis C virus (HCV) NS5A inhibitor with potent pangenotypic antiviral activity in vitro. Paritaprevir is an NS3/4A protease inhibitor codosed with ritonavir that displays in vitro activity against HCV genotypes 1-4 and 6. METHODS Efficacy, pharmacokinetics and safety of ABT-530 with paritaprevir/ritonavir and ribavirin were evaluated in this phase 2, open-label, multicentre study in treatment-naïve non-cirrhotic patients with genotype 3 infection. Ten patients, all genotype 3a, received 120 mg ABT-530 and 150/100 mg paritaprevir/ritonavir once daily with ribavirin for 12 weeks. RESULTS Nine (90%) patients achieved a sustained virological response at post-treatment weeks 12 and 24. One patient experienced virological failure at treatment week 6. Sequence analyses for HCV variants in samples from this patient identified A166S in NS3 at baseline and after breakthrough, as well as A30K at baseline and linked S24F+M28K+A30K variants in NS5A after breakthrough. Neither genotype 3 NS3 A166S nor NS5A A30K variant confers any resistance to paritaprevir or ABT-530 respectively. However, genotype 3 NS5A S24F+M28K+A30K-linked variant confers a >5000-fold increase in ABT-530 EC50 relative to that of the wild-type replicon. This patient's ABT-530 exposure was comparable to the cohort, while paritaprevir and ritonavir exposures were the lowest of all patients. No serious or severe adverse events and adverse events leading to early discontinuation were reported. CONCLUSIONS Results from this study show that ABT-530 holds promise as part of a direct-acting antiviral treatment regimen for HCV genotype 3 infection.
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Affiliation(s)
- Fred Poordad
- Texas Liver InstituteUniversity of Texas Health Science CenterSan AntonioTXUSA
| | | | | | | | | | - Bo Fu
- AbbVie Inc.North ChicagoILUSA
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12
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Gardiner LJ, Bansept-Basler P, Olohan L, Joynson R, Brenchley R, Hall N, O'Sullivan DM, Hall A. Mapping-by-sequencing in complex polyploid genomes using genic sequence capture: a case study to map yellow rust resistance in hexaploid wheat. Plant J 2016; 87:403-19. [PMID: 27144898 PMCID: PMC5026171 DOI: 10.1111/tpj.13204] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 04/21/2016] [Accepted: 04/26/2016] [Indexed: 05/20/2023]
Abstract
Previously we extended the utility of mapping-by-sequencing by combining it with sequence capture and mapping sequence data to pseudo-chromosomes that were organized using wheat-Brachypodium synteny. This, with a bespoke haplotyping algorithm, enabled us to map the flowering time locus in the diploid wheat Triticum monococcum L. identifying a set of deleted genes (Gardiner et al., 2014). Here, we develop this combination of gene enrichment and sliding window mapping-by-synteny analysis to map the Yr6 locus for yellow stripe rust resistance in hexaploid wheat. A 110 MB NimbleGen capture probe set was used to enrich and sequence a doubled haploid mapping population of hexaploid wheat derived from an Avalon and Cadenza cross. The Yr6 locus was identified by mapping to the POPSEQ chromosomal pseudomolecules using a bespoke pipeline and algorithm (Chapman et al., 2015). Furthermore the same locus was identified using newly developed pseudo-chromosome sequences as a mapping reference that are based on the genic sequence used for sequence enrichment. The pseudo-chromosomes allow us to demonstrate the application of mapping-by-sequencing to even poorly defined polyploidy genomes where chromosomes are incomplete and sub-genome assemblies are collapsed. This analysis uniquely enabled us to: compare wheat genome annotations; identify the Yr6 locus - defining a smaller genic region than was previously possible; associate the interval with one wheat sub-genome and increase the density of SNP markers associated. Finally, we built the pipeline in iPlant, making it a user-friendly community resource for phenotype mapping.
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Affiliation(s)
- Laura-Jayne Gardiner
- Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool, UK
| | | | - Lisa Olohan
- Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool, UK
| | - Ryan Joynson
- Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool, UK
| | - Rachel Brenchley
- Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool, UK
| | - Neil Hall
- Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool, UK
| | - Donal M O'Sullivan
- School of Agriculture, Policy and Development, University of Reading, PO Box 237, Whiteknights, Reading, RG6 6AR, UK
| | - Anthony Hall
- Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool, UK.
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Lazzeri E, Ronconi E, Angelotti ML, Peired A, Mazzinghi B, Becherucci F, Conti S, Sansavini G, Sisti A, Ravaglia F, Lombardi D, Provenzano A, Manonelles A, Cruzado JM, Giglio S, Roperto RM, Materassi M, Lasagni L, Romagnani P. Human Urine-Derived Renal Progenitors for Personalized Modeling of Genetic Kidney Disorders. J Am Soc Nephrol 2015; 26:1961-74. [PMID: 25568173 DOI: 10.1681/asn.2014010057] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 09/30/2014] [Indexed: 12/16/2022] Open
Abstract
The critical role of genetic and epigenetic factors in the pathogenesis of kidney disorders is gradually becoming clear, and the need for disease models that recapitulate human kidney disorders in a personalized manner is paramount. In this study, we describe a method to select and amplify renal progenitor cultures from the urine of patients with kidney disorders. Urine-derived human renal progenitors exhibited phenotype and functional properties identical to those purified from kidney tissue, including the capacity to differentiate into tubular cells and podocytes, as demonstrated by confocal microscopy, Western blot analysis of podocyte-specific proteins, and scanning electron microscopy. Lineage tracing studies performed with conditional transgenic mice, in which podocytes are irreversibly tagged upon tamoxifen treatment (NPHS2.iCreER;mT/mG), that were subjected to doxorubicin nephropathy demonstrated that renal progenitors are the only urinary cell population that can be amplified in long-term culture. To validate the use of these cells for personalized modeling of kidney disorders, renal progenitors were obtained from (1) the urine of children with nephrotic syndrome and carrying potentially pathogenic mutations in genes encoding for podocyte proteins and (2) the urine of children without genetic alterations, as validated by next-generation sequencing. Renal progenitors obtained from patients carrying pathogenic mutations generated podocytes that exhibited an abnormal cytoskeleton structure and functional abnormalities compared with those obtained from patients with proteinuria but without genetic mutations. The results of this study demonstrate that urine-derived patient-specific renal progenitor cultures may be an innovative research tool for modeling of genetic kidney disorders.
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Affiliation(s)
- Elena Lazzeri
- Excellence Centre for Research, Transfer and High Education for the Development of DE NOVO Therapies (DENOTHE) and
| | - Elisa Ronconi
- Excellence Centre for Research, Transfer and High Education for the Development of DE NOVO Therapies (DENOTHE) and Department of Clinical and Experimental Biomedical Sciences, University of Florence, Florence, Italy
| | - Maria Lucia Angelotti
- Excellence Centre for Research, Transfer and High Education for the Development of DE NOVO Therapies (DENOTHE) and
| | - Anna Peired
- Excellence Centre for Research, Transfer and High Education for the Development of DE NOVO Therapies (DENOTHE) and Department of Clinical and Experimental Biomedical Sciences, University of Florence, Florence, Italy
| | | | - Francesca Becherucci
- Pediatric Nephrology Unit, Meyer Children's University Hospital, Florence, Italy
| | - Sara Conti
- IRCCS-Istituto di Ricerche Farmacologiche "Mario Negri," Centro Anna Maria Astori, Bergamo, Italy; and
| | - Giulia Sansavini
- Pediatric Nephrology Unit, Meyer Children's University Hospital, Florence, Italy
| | - Alessandro Sisti
- Excellence Centre for Research, Transfer and High Education for the Development of DE NOVO Therapies (DENOTHE) and
| | - Fiammetta Ravaglia
- Pediatric Nephrology Unit, Meyer Children's University Hospital, Florence, Italy
| | - Duccio Lombardi
- Excellence Centre for Research, Transfer and High Education for the Development of DE NOVO Therapies (DENOTHE) and
| | | | - Anna Manonelles
- Department of Nephrology, Bellvitge's University Hospital, Barcelona, Spain
| | - Josep M Cruzado
- Department of Nephrology, Bellvitge's University Hospital, Barcelona, Spain
| | - Sabrina Giglio
- Department of Clinical and Experimental Biomedical Sciences, University of Florence, Florence, Italy; Medical Genetics Unit and
| | - Rosa Maria Roperto
- Pediatric Nephrology Unit, Meyer Children's University Hospital, Florence, Italy
| | - Marco Materassi
- Pediatric Nephrology Unit, Meyer Children's University Hospital, Florence, Italy
| | - Laura Lasagni
- Excellence Centre for Research, Transfer and High Education for the Development of DE NOVO Therapies (DENOTHE) and
| | - Paola Romagnani
- Excellence Centre for Research, Transfer and High Education for the Development of DE NOVO Therapies (DENOTHE) and Department of Clinical and Experimental Biomedical Sciences, University of Florence, Florence, Italy; Pediatric Nephrology Unit, Meyer Children's University Hospital, Florence, Italy;
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Gardiner LJ, Gawroński P, Olohan L, Schnurbusch T, Hall N, Hall A. Using genic sequence capture in combination with a syntenic pseudo genome to map a deletion mutant in a wheat species. Plant J 2014; 80:895-904. [PMID: 25205592 DOI: 10.1111/tpj.12660] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 08/29/2014] [Accepted: 09/02/2014] [Indexed: 05/23/2023]
Abstract
Mapping-by-sequencing analyses have largely required a complete reference sequence and employed whole genome re-sequencing. In species such as wheat, no finished genome reference sequence is available. Additionally, because of its large genome size (17 Gb), re-sequencing at sufficient depth of coverage is not practical. Here, we extend the utility of mapping by sequencing, developing a bespoke pipeline and algorithm to map an early-flowering locus in einkorn wheat (Triticum monococcum L.) that is closely related to the bread wheat genome A progenitor. We have developed a genomic enrichment approach using the gene-rich regions of hexaploid bread wheat to design a 110-Mbp NimbleGen SeqCap EZ in solution capture probe set, representing the majority of genes in wheat. Here, we use the capture probe set to enrich and sequence an F2 mapping population of the mutant. The mutant locus was identified in T. monococcum, which lacks a complete genome reference sequence, by mapping the enriched data set onto pseudo-chromosomes derived from the capture probe target sequence, with a long-range order of genes based on synteny of wheat with Brachypodium distachyon. Using this approach we are able to map the region and identify a set of deleted genes within the interval.
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Affiliation(s)
- Laura-Jayne Gardiner
- Institute of Integrative Biology, University of Liverpool, Crown Street, Liverpool, UK
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Sie AS, Prins JB, van Zelst-Stams WAG, Veltman JA, Feenstra I, Hoogerbrugge N. Patient experiences with gene panels based on exome sequencing in clinical diagnostics: high acceptance and low distress. Clin Genet 2014; 87:319-26. [PMID: 24863757 DOI: 10.1111/cge.12433] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 04/08/2014] [Accepted: 05/20/2014] [Indexed: 01/14/2023]
Abstract
The Radboud University Medical Center was among the first to implement two-step exome sequencing in clinical genetic diagnostics. This study is the first to evaluate patient experiences with gene panels based on exome sequencing, using quantified psychological variables: acceptance, psychological distress, expectations of heredity and unsolicited findings. Between August 2011 and July 2012, 177 patients diagnosed with early-onset colorectal/kidney cancer, deafness, blindness or movement disorder consented to diagnostic exome sequencing offered by clinical geneticists. Baseline questionnaires were sent to 141 adults, returned by 111 with median age of 49 [22-79] years and positive family history in 81%. Follow-up included 91 responders at median 4 [2-22] weeks after results from known gene panels per diagnosis group; exome-wide analysis is ongoing. Confirmed or possibly pathogenic mutations were found in 31% with one unsolicited finding (oncogenetic panel). Most patients (92%) were satisfied. There were no significant changes in heredity-specific distress (18% at baseline, 17% at follow-up) and expectations of heredity. Fewer patients expected unsolicited findings at follow-up (29% vs 18%, p = 0.01). Satisfaction and distress were equal in those with vs without mutations. In conclusion, most adults accepted and were satisfied with gene panels based on diagnostic exome sequencing, few reporting distress.
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Affiliation(s)
- A S Sie
- Department of Human Genetics
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