RESUMEN
BACKGROUND: In the interim report of this phase I/II randomized, placebo-controlled trial in Japanese adults, a two-dose primary series of NVX-CoV2373 (5 µg SARS-CoV-2 recombinant nanoparticle spike protein [rS]; 50 µg Matrix-M) administered 21 days apart induced robust anti-SARS-CoV-2 immune responses up to day 50 and had an acceptable safety profile. METHODS: Following the double-blind phase of this study (day 1-50), participants were informed about their assignment to NVX-CoV2373 or placebo, and their reconsent was required for continuation in the open-label phase (day 51-387). This final report evaluated immunogenicity on days 202 and 387, and safety findings from the 1-year follow-up. RESULTS: In total, 131/150 participants in the NVX-CoV2373 arm and 4/50 in the placebo arm completed the study. The most common reason for discontinuation was because the participant requested a publicly available COVID-19 vaccine. At 6 months and 1 year after the second vaccine dose, both the geometric mean titres of anti-SARS-CoV-2 rS serum immunoglobulin G and serum neutralizing antibodies against the SARS-CoV-2 ancestral strain were numerically higher than before the second dose. There were no deaths, adverse events (AEs) leading to participant withdrawal, or AEs of special interest throughout the trial. During follow-up, 2.0 % (1/50) of participants in the placebo arm reported COVID-19 approximately 1 month after the second vaccine dose (serious AE requiring hospitalisation, already presented in the interim report) and 2.7 % (4/150) in the NVX-CoV2373 arm after approximately 10 months (mild [2/4] or moderate [2/4] in severity). DISCUSSION: A primary series of NVX-CoV2373 induced persistent immune responses up to 1 year after the second dose. The vaccine was well tolerated and had an acceptable safety profile. We believe our findings offer important insights for determining dosing intervals between primary and booster vaccinations.
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Vacunas contra la COVID-19 , Vacunas , Adulto , Humanos , Vacunas contra la COVID-19/efectos adversos , Estudios de Seguimiento , Japón , Anticuerpos Neutralizantes , SARS-CoV-2 , Inmunogenicidad Vacunal , Anticuerpos Antivirales , Método Doble CiegoRESUMEN
BACKGROUND: The phase 3, single-arm, open-label TAK-019-3001 study assessed two heterologous booster doses of NVX-CoV2373 administered 5 months apart in healthy Japanese adults who had completed a primary series of a COVID-19 mRNA vaccine 6-12 months previously. In the main part of this study, a first booster induced rapid and robust anti-SARS-CoV-2 immune responses, addressing waning immunity in participants. METHODS: This interim analysis evaluated the immunogenicity and safety of a second booster in the extension part of this study including comparisons with the first booster. Immunogenicity was assessed on extension day (ED) 1 (before vaccination) and ED15. Solicited and unsolicited adverse events occurring in the 7 and 28 days, respectively, after vaccination were assessed. RESULTS: Of the 150 participants who received a first NVX-CoV2373 booster, 129 were administered a second booster on ED1. Participant characteristics were consistent between the main and extension parts of the study. Titres of anti-SARS-CoV-2 rS serum immunoglobulin G and serum neutralizing antibodies against the SARS-CoV-2 ancestral strain at ED15 were 4.0- and 3.0-fold higher, respectively, than those observed 5 months after the first booster on ED1, and 3.0- and 1.4-fold higher, respectively, than those observed 14 days after the first booster on day 15. The proportions of participants who experienced solicited local and systemic adverse events (AEs) in the 7 days after the second booster were 73.6 % and 51.2 %, respectively: most were of grade 2 severity or lower. Seven percent of participants experienced unsolicited AEs in the 28 days after the second booster: all were unrelated to the treatment. There were no deaths or AEs leading to study discontinuation. DISCUSSION: A second heterologous NVX-CoV2373 booster in healthy Japanese adults induced more robust anti-SARS-CoV-2 immune responses than the first booster. The second booster was well tolerated. No new safety concerns were identified.
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Vacunas contra la COVID-19 , COVID-19 , Adulto , Humanos , Anticuerpos Neutralizantes , Anticuerpos Antivirales , COVID-19/prevención & control , Vacunas contra la COVID-19/efectos adversos , Inmunogenicidad Vacunal , Japón , Vacunas de ARNm , SARS-CoV-2RESUMEN
BACKGROUND: We evaluated the immunogenicity and safety of a booster dose of NVX-CoV2373 in Japanese adults who had completed a primary series of COVID-19 mRNA vaccine 6-12 months previously. METHODS: This single-arm, open-label, phase 3 study, conducted at two Japanese centres, enrolled healthy adults ≥ 20 years old. Participants received a booster dose of NVX-CoV2373. The primary immunogenicity endpoint was non-inferiority (lower limit of the 95 % confidence interval [CI] ≥ 0.67) of the geometric mean titre (GMT) ratio of titres of serum neutralizing antibodies (nAbs) against the SARS-CoV-2 ancestral strain 14 days after booster vaccination (day 15) in this study, compared with those 14 days after the second primary NVX-CoV2373 vaccination (day 36) in the TAK-019-1501 study (NCT04712110). Primary safety endpoints included local and systemic solicited adverse events (AEs) up to day 7 and unsolicited AEs up to day 28. RESULTS: Between 15 April 2022 and 10 May 2022, 155 participants were screened and 150, stratified by age (20-64 years old [n = 135] or ≥ 65 years old [n = 15]), received an NVX-CoV2373 booster dose. The GMT ratio between titres of serum nAbs against the SARS-CoV-2 ancestral strain on day 15 in this study and those on day 36 in the TAK-019-1501 study was 1.18 (95 % CI, 0.95-1.47), meeting the non-inferiority criterion. Following vaccination, the proportion of participants who reported local and systemic solicited AEs up to day 7 was 74.0 % and 48.0 %, respectively. The most common local and systemic solicited AEs were tenderness (102 participants [68.0 %]) and malaise (39 participants [26.0 %]), respectively. Seven participants (4.7 %) reported unsolicited AEs between vaccination and day 28; all were severity grade ≤ 2. DISCUSSION: A single heterologous NVX-CoV2373 booster induced rapid and robust anti-SARS-CoV-2 immune responses, addressing waning immunity in healthy Japanese adults, and had an acceptable safety profile. CLINICALTRIALS: gov identifier: NCT05299359.
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Vacunas contra la COVID-19 , COVID-19 , Adulto , Humanos , Adulto Joven , Persona de Mediana Edad , Anciano , Vacunas contra la COVID-19/efectos adversos , COVID-19/prevención & control , Pueblos del Este de Asia , Inmunización Secundaria , SARS-CoV-2 , Anticuerpos Neutralizantes , Inmunogenicidad Vacunal , Anticuerpos Antivirales , Vacunas de ARNmRESUMEN
BACKGROUND: We evaluated the safety and immunogenicity of NVX-CoV2373, a recombinant SARS-CoV-2 nanoparticle vaccine, in healthy Japanese participants. METHODS: This phase 1/2, randomized, observer-blind, placebo-controlled trial conducted in Japan (two sites), enrolled healthy Japanese adults aged ≥ 20 years with no history/risk of SARS-CoV-2 infection and no prior exposure to other approved/investigational SARS-CoV-2 vaccines or treatments. Participants were stratified by age (< 65 or ≥ 65 years) and randomized to receive two doses of either NVX-CoV2373 (5 µg SARS-CoV-2 rS; 50 µg Matrix-M1) or placebo, 21 days apart. Primary outcomes were safety and immunogenicity assessed by serum IgG antibody levels against SARS-CoV-2 rS protein on day 36. Herein, we report the primary data analysis at 4 weeks after the second dose, ahead of 12-month follow-up completion (data cut-off: 8 May 2021). RESULTS: Between 12 February 2021 and 17 March 2021, 326 subjects were screened, and 200 participants enrolled and randomized: NVX-CoV2373, n = 150; placebo, n = 50. Solicited adverse events (AEs) through 7 days after each injection occurred in 121/150 (80.7%) and 11/50 (22.0%) participants in the NVX-CoV2373 and placebo arms, respectively. In the NVX-CoV2373 arm, tenderness and injection site pain were the most frequently reported solicited AEs after each vaccination, irrespective of age. Robust immune responses occurred with NVX-CoV2373 (n = 150) by day 36: IgG geometric mean fold rise (95% confidence interval) 259 (219, 306); seroconversion rate 100% (97.6, 100). No such response occurred with placebo (n = 49). CONCLUSION: Two doses of NVX-CoV2373 given with a 21-day interval demonstrated acceptable safety and induced robust anti-SARS-CoV-2 immune responses in healthy Japanese adults. FUNDING: Takeda Pharmaceutical Company Limited and Japan Agency for Medical Research and Development (AMED). CLINICALTRIALS: gov identifier: NCT04712110.
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Vacunas contra la COVID-19 , COVID-19 , Adulto , Anticuerpos Antivirales , COVID-19/prevención & control , Vacunas contra la COVID-19/efectos adversos , Método Doble Ciego , Humanos , Inmunogenicidad Vacunal , Japón , SARS-CoV-2RESUMEN
INTRODUCTION: The mRNA vaccine, mRNA-1273/TAK-919, encodes the prefusion-stabilised spike protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). We report interim results of the first study evaluating safety and immunogenicity of mRNA-1273 in healthy Japanese participants. METHODS: This phase 1/2, randomised, observer-blind, placebo-controlled trial, conducted in Japan (two sites), enrolled healthy adults aged ≥ 20 years with no prior exposure to investigational coronavirus vaccines/treatments, and no known history/risk of SARS-CoV-2 infection. Participants were stratified by age (< 65/≥ 65 years) and randomised to receive two doses of 100 µg mRNA-1273 or placebo administered as intramuscular injections 28 days apart. Primary outcomes were safety and immunogenicity assessed by anti-SARS-CoV-2-spike protein-binding antibody level (bAb). A secondary outcome was SARS-CoV-2 neutralising antibody (nAb) response. RESULTS: Participants were enrolled between 21 January and 3 February 2021, and 200 were randomised: mRNA-1273, n = 150 (< 65 years, n = 100; ≥ 65 years, n = 50); placebo, n = 50 (< 65 years, n = 40; ≥ 65 years, n = 10). Solicited adverse events (AEs) through 7 days after each vaccination occurred in 144/150 (96%) and 19/50 (38%) participants in the mRNA-1273 and placebo arms, respectively. In the mRNA-1273 arm, injection-site pain, myalgia and fatigue were the most frequently reported solicited AEs after each vaccination, irrespective of age. Robust immune responses occurred with mRNA-1273 (n = 147) with a bAb geometric mean fold rise (95% confidence interval [CI]) from baseline of 1009 (865, 1177) and a nAb of 21.7 (19.8, 23.8) at day 57. Seroconversion rates (95% CI) for bAb and nAb were both 100% (97.5, 100) at day 57. No such response occurred with placebo (n = 49). CONCLUSION: Two doses of 100 µg mRNA-1273 given 28 days apart demonstrated an acceptable safety profile and induced significant anti-SARS-CoV-2 immune responses in a Japanese population aged ≥ 20 years. FUNDING: Takeda Pharmaceutical Company Limited and Japan Agency for Medical Research and Development (AMED). CLINICALTRIALS: gov: NCT04677660.
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Vacuna nCoV-2019 mRNA-1273 , COVID-19 , Adulto , Anciano , Anticuerpos Neutralizantes , Anticuerpos Antivirales , COVID-19/prevención & control , Vacunas contra la COVID-19/efectos adversos , Método Doble Ciego , Humanos , Inmunogenicidad Vacunal , Japón , SARS-CoV-2 , Vacunas Sintéticas , Adulto Joven , Vacunas de ARNmRESUMEN
Asparagus kiusianus is a disease-resistant dioecious plant species and a wild relative of garden asparagus (Asparagus officinalis). To enhance A. kiusianus genomic resources, advance plant science, and facilitate asparagus breeding, we determined the genome sequences of the male and female lines of A. kiusianus. Genome sequence reads obtained with a linked-read technology were assembled into four haplotype-phased contig sequences (â¼1.6 Gb each) for the male and female lines. The contig sequences were aligned onto the chromosome sequences of garden asparagus to construct pseudomolecule sequences. Approximately 55,000 potential protein-encoding genes were predicted in each genome assembly, and â¼70% of the genome sequence was annotated as repetitive. Comparative analysis of the genomes of the two species revealed structural and sequence variants between the two species as well as between the male and female lines of each species. Genes with high sequence similarity with the male-specific sex determinant gene in A. officinalis, MSE1/AoMYB35/AspTDF1, were presented in the genomes of the male line but absent from the female genome assemblies. Overall, the genome sequence assemblies, gene sequences, and structural and sequence variants determined in this study will reveal the genetic mechanisms underlying sexual differentiation in plants, and will accelerate disease-resistance breeding in garden asparagus.
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Asparagus , Genoma de Planta , Asparagus/genética , Cromosomas , Resistencia a la Enfermedad/genética , HaplotiposRESUMEN
PURPOSE: This study aimed to investigate the process mothers go through in coming to terms with raising a child with chromosomal structural abnormalities. METHODS: Sixteen mothers living in Japan were interviewed and a modified grounded theory approach was used for the analysis. RESULTS: A total of 35 concepts, nine subcategories, and six categories were extracted. The six categories were: (a) Concern about abnormalities; (b) A healthy child is considered as a standard; (c) Deepening attachment to the child; (d) Acceptance of the child as s/he is; (e) Changing attitude toward disabilities; (f) Creating a frontier for other mothers. The parenting journey meant that parents did not move in a straightforward way from the beginning of the process to the endpoint but instead moved between "Deepening attachment to the child" and "Acceptance of the child as s/he is" before they moved ahead. CONCLUSION: Having support and meeting peers of mothers with similar issues is essential for mothers to review their perspectives that healthy children are the standard against which to measure their child and to motivate them to raise their children, but it was extremely difficult to have such opportunities due to rarity of the disorder. It is crucial to accumulate more practical information so that mothers can access and use it. Mothers also need support to enhance their self-worth while giving due consideration to the possibility that they may be conscious of being stigmatized. Nurses need to advocate for these children and families to get the appropriate help, understanding and support.
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Madres , Responsabilidad Parental , Niño , Femenino , Humanos , Japón , Masculino , Relaciones Madre-Hijo , PadresRESUMEN
Phomopsis asparagi is one of the most serious fungal pathogens, which causes stem blight disease in Asparagus officinalis (AO), adversely affecting its production worldwide. Recently, the development of novel asparagus varieties using wild Asparagus genetic resources with natural P. asparagi resistance has become a priority in Japan due to the lack of resistant commercial AO cultivars. In this study, comparative metabolome and transcriptome analyses of susceptible AO and resistant wild Asparagus kiusianus (AK) 24 and 48 h postinoculated (AOI_24 hpi, AOI_48 hpi, AKI_24 hpi and AKI_48 hpi, respectively) with P. asparagi were conducted to gain insights into metabolic and expression changes associated with AK species. Following infection, the resistant wild AK showed rapid metabolic changes with increased levels of flavonoids and steroidal saponins and decreased asparagusic acid glucose ester content, compared with the susceptible AO plants. Transcriptome data revealed a total of 21 differentially expressed genes (DEGs) as the core gene set that displayed upregulation in the resistant AK versus susceptible AO after infection with P. asparagi. Kyoto Encyclopedia of Genes and Genomes pathway analysis of these DEGs identified 11 significantly enriched pathways, including flavonoid biosynthesis and primary metabolite metabolism, in addition to plant signaling and defense-related pathways. In addition, comparative single-nucleotide polymorphism and Indel distributions in susceptible AO and resistant AK plants were evaluated using the latest AO reference genome Aspof.V1. The data generated in this study are important resources for advancing Asparagus breeding programs and for investigations of genetic linkage mapping, phylogenetic diversity and plant defense-related genes.
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Asparagus/inmunología , Resistencia a la Enfermedad , Phomopsis , Enfermedades de las Plantas/inmunología , Asparagus/genética , Asparagus/metabolismo , Asparagus/microbiología , Resistencia a la Enfermedad/genética , Perfilación de la Expresión Génica , Regulación de la Expresión Génica de las Plantas , Metabolómica , Enfermedades de las Plantas/microbiología , Polimorfismo de Nucleótido Simple/genética , Reacción en Cadena en Tiempo Real de la PolimerasaRESUMEN
Nurses need to be appropriately trained in genetics to provide clinical care based on best practice for patients and families. This exploratory study describes an educational intervention using authentic stimulus material centered on a clinical case study of a family with a baby with Down syndrome. Quantitative and qualitative data were collected from a sample of 15 nurses and 27 students from three universities in Japan before and after completing an entry-level workshop on competency-based genetics nursing. Participants reported increased perceived genetics knowledge and clinical confidence. Despite more than 90% of the participants reporting that they understood the underlying genetics knowledge, their confidence and the ethical aspects of genetics nursing had not been promoted after the seminar. In contrast, the reflections, coded into three categories, showed they recognized families' needs for psychological support, family decision making, and protection and privacy and suggested that nurses had undergone a profound shift in understanding about these issues. Although indicating that a single seminar was insufficient, the study findings will be useful to develop educational materials on genetics for both students and nurses.
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Competencia Clínica/normas , Genética/educación , Enfermería Pediátrica/educación , Atención Perinatal/métodos , Adulto , Femenino , Humanos , Japón , Masculino , Persona de Mediana Edad , Enfermería Pediátrica/tendencias , Atención Perinatal/tendencias , Proyectos Piloto , Estudios Prospectivos , Estudiantes de Enfermería/psicología , Estudiantes de Enfermería/estadística & datos numéricosRESUMEN
This data article reports de novo transcriptome analysis of resistant wild Asparagus kiusianus and susceptible A. officinalis plants 24 and 48â¯h post-inoculation (24 and 48 hpi) with Phomopsis asparagi. Differential gene expression (DGE) analysis demonstrated that several genes involved in secondary metabolites and plant-pathogen interactions are up-regulated in resistant wild A. kiusianus relative to susceptible A. officinalis. The assembled contig sequences generated in this study were used to search single nucleotide polymorphism (SNP) and insertion/deletion (InDel) distribution in A. kiusianus and A. officinalis plants. SNP and InDel data developed from this transcriptome analysis will be used to generate a high-density linkage map to facilitate further development of molecular marker-assisted selection in A. officinalis.
RESUMEN
Asparagus kiusianus, an important wild relative of cultivated asparagus (A. officinalis), exhibits resistance to stem blight disease caused by Phomopsis asparagi. However, the mechanisms underlying this resistance are not understood and no transcriptomic or genetic resources are available for this species. De novo transcriptome sequencing of A. officinalis and A. kiusianus stems was performed 24 h after inoculation with P. asparagi. In total, 35,259 and 36,321 transcripts were annotated in A. officinalis and A. kiusianus, respectively. 1,027 up-regulated and 752 down-regulated transcripts were differentially expressed in the two Asparagus species. RNA sequencing data were validated using quantitative real-time reverse transcription PCR. Several defense-related genes including peroxidase 4, cationic peroxidase SPC4-like, pathogenesis-related protein-1-like, and jasmonic acid biosynthesis and signaling-related genes including phospholipase D alpha 1, 12-oxophytodienoate reductase and jasmonate-induced protein 23 KD were up-regulated in A. kiusianus relative to A. officinalis. In addition, infected A. kiusianuns exhibited a substantial increase in jasmonic acid and methyl jasmonate relative to A. officinalis. Peroxidase activity was significantly elevated in infected A. kiusianus compared with infected A. officinalis. Our transcriptomic database provides a resource for identifying novel genes and molecular markers-associated with Phomopsis disease resistance and will facilitate breeding and improvement of cultivated asparagus varieties.
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Asparagus/genética , Micosis/genética , Peroxidasa/genética , Enfermedades de las Plantas/genética , Proteínas de Plantas/genética , Tallos de la Planta/fisiología , Sordariales/inmunología , Asparagus/inmunología , Células Cultivadas , Resistencia a la Enfermedad/genética , Perfilación de la Expresión Génica , Regulación de la Expresión Génica de las Plantas , Micosis/inmunología , Peroxidasa/metabolismo , Enfermedades de las Plantas/inmunología , Inmunidad de la Planta , Proteínas de Plantas/metabolismo , Análisis de Secuencia de ARN , Transcriptoma , Regulación hacia ArribaRESUMEN
The number of pregnant women of advanced maternal age has increased worldwide. Women in this group have an increased chance of fetal abnormality. To explore Japanese women's experiences regarding maternal age-specific risks and prenatal testing, we conducted a descriptive qualitative study. Semi-structured interviews were conducted with 16 women aged 35 years or over who had given birth within the previous three months to a healthy, term infant. Thematic analysis of transcribed interview data was performed and three major themes were identified: inadequate understanding of genetic risks; insufficiently informed choice regarding prenatal testing; and need for more information from health professionals. Some participants were not aware of maternal age-specific risks to the fetus. Many took their cues from health professionals and did not raise the topic themselves, but would have considered prenatal testing if made aware of the risks. Nurses, midwives and other health professionals need to adequately inform pregnant women about the genetic risks to the fetus and offer testing at an appropriate stage early in the pregnancy.
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Aberraciones Cromosómicas , Pruebas Genéticas , Edad Materna , Mujeres Embarazadas/psicología , Diagnóstico Prenatal , Adulto , Femenino , Humanos , Entrevistas como Asunto , Japón , Embarazo , Factores de RiesgoRESUMEN
BACKGROUND: Many health beliefs do not have supporting scientific evidence, and are influenced by culture, gender, religion, social circumstance and popular media. Nurses may also hold non-evidenced-based beliefs that affect their own health behaviours and their practices. OBJECTIVES: Using Q-methodology, pilot Q-cards representing a concourse of health beliefs for Japanese and South Korean nurses and explain the content and sources of health beliefs. DESIGN: Qualitative. SETTINGS: Two university campuses, one each in Japan and Korea. PARTICIPANTS: A convenience sample of 30 was obtained, 14 clinical nurses and 16 academic nurses. METHODS: Literature reviews and expert informants were used to develop two sets of 65 Q-cards which listed culturally appropriate health beliefs in both Japan and Korea. These beliefs were examined in four structured groups and five individual interviews in Japan, and five groups and two individual interviews in Korea. RESULTS: Our unique study revealed six categories regarding sources of health beliefs that provide rich insights about how participants accessed, processed and transmitted health information. They were more certain about knowledge from their specialty area such as that from medical or nursing resources, but derived and distributed many general health beliefs from personal experience, family and mass media. They did not always pass on accurate information to students or those in their care, and often beliefs were not based on scientific evidence. CONCLUSION: Findings highlight the dangers of clinical and academic nurses relying on health belief advice of others and passing this on to patients, students or others, without mindfully examining the basis of their beliefs through scientific evidence.
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Conductas Relacionadas con la Salud , Práctica Clínica Basada en la Evidencia , Humanos , Japón , Proyectos Piloto , República de CoreaRESUMEN
Because there are few published studies from Eastern countries concerning women's experiences of prenatal ultrasound scans, this study investigated this topic in 238 Japanese women in three different prenatal settings. A cross-sectional questionnaire of 33 items was administered to 261 women at 14-37 weeks gestation with no known obstetrical risk, after their ultrasounds. The main reasons for the ultrasounds were evaluation of fetal growth (100%, n = 238); obstetrical conditions (n = 228, 96%); and fetal abnormalities (91%, n = 217). With increasing maternal age, participants worried more about obstetric problems or fetal abnormalities. Many were interested in fetal viability in early pregnancy, and obstetric problems or fetal abnormality in late pregnancy. While most (n = 234, 98%) looked forward to having scans, the majority (n = 235, 99%) wanted to know if their baby had an anomaly, and 72% (n = 171) worried about the detection of abnormalities. Only 50% (n = 118) had obtained information from their care provider. To assist with women's decision-making, prenatal care providers should provide quality information and understand the factors that influence women's concerns.
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Actitud Frente a la Salud , Tamizaje Masivo/psicología , Ultrasonografía Prenatal/psicología , Adulto , Estudios Transversales , Femenino , Humanos , Japón , Embarazo , Encuestas y Cuestionarios , Adulto JovenRESUMEN
To identify the host factors implicated in the regulation of hepatitis C virus (HCV) genome replication, we performed comparative proteome analyses of HCV replication complex (RC)-rich membrane fractions prepared from cells harboring genome-length bicistronic HCV RNA at the exponential and stationary growth phases. We found that the eukaryotic chaperonin T-complex polypeptide 1 (TCP1)-ring complex/chaperonin-containing TCP1 (TRiC/CCT) plays a role in the replication possibly through an interaction between subunit CCT5 and the viral RNA polymerase NS5B. siRNA-mediated knockdown of CCT5 suppressed RNA replication and production of the infectious virus. Gain-of-function activity was shown following co-transfection with whole eight TRiC/CCT subunits. HCV RNA synthesis was inhibited by an anti-CCT5 antibody in a cell-free assay. These suggest that recruitment of the chaperonin by the viral nonstructural proteins to the RC, which potentially facilitate folding of the RC component(s) into the mature active form, may be important for efficient replication of the HCV genome.
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Chaperoninas/metabolismo , Hepacivirus/genética , Hepatocitos/virología , Proteínas no Estructurales Virales/metabolismo , Replicación Viral/fisiología , Línea Celular Tumoral , Regulación Viral de la Expresión Génica/fisiología , Hepacivirus/fisiología , Humanos , ARN Viral/genética , ARN Viral/metabolismo , Proteínas del Núcleo Viral/genética , Proteínas del Núcleo Viral/metabolismo , Proteínas no Estructurales Virales/genéticaRESUMEN
In the UK and Japan, midwives provide health services for women with concerns about a genetic condition or who are considering antenatal screening. In both countries, competences related to genetic health care have been devised but there is little evidence about midwifery competence in practice. A systematic literature review was undertaken to determine the extent to which midwives are achieving the genetic competences that are prescribed for their practice. English and Japanese literature from January 1999 to March 2009 was retrieved. Original studies or reviews, in which an aspect of midwifery practice was related to genetic competences, were eligible for inclusion. After a critical appraisal, six UK and five Japanese papers were eligible for inclusion. The findings indicated that midwives are not achieving the competences, nor are they confident about their genetics knowledge. Moreover, women are not being supported to make informed decisions regarding antenatal screening. We have confirmed that little research is being undertaken in both countries regarding competency achievement in practice. Changes to midwifery curricula and further continuing education are required to ensure that midwives are able to provide effective care regarding genetics.
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Asesoramiento Genético , Conocimientos, Actitudes y Práctica en Salud , Partería , Femenino , Humanos , Japón , Embarazo , Reino UnidoRESUMEN
E6-associated protein (E6AP) is a cellular ubiquitin protein ligase that mediates ubiquitylation and degradation of tumor suppressor p53 in conjunction with the high-risk human papillomavirus E6 protein. We previously reported that E6AP targets annexin A1 protein for ubiquitin-dependent proteasomal degradation. To gain a better understanding of the physiological function of E6AP, we have been seeking to identify novel substrates of E6AP. Here, we identified peroxiredoxin 1 (Prx1) as a novel E6AP-binding protein using a tandem affinity purification procedure coupled with mass spectrometry. Prx1 is a 25-kDa member of the Prx family, a ubiquitous family of antioxidant peroxidases that regulate many cellular processes through intracellular oxidative signal transduction pathways. Immunoprecipitation analysis showed that E6AP binds Prx1 in vivo. Pull-down experiments showed that E6AP binds Prx1 in vitro. Ectopic expression of E6AP enhanced the degradation of Prx1 in vivo. In vivo and in vitro ubiquitylation assays revealed that E6AP promoted polyubiquitylation of Prx1. RNAi-mediated downregulation of endogenous E6AP increased the level of endogenous Prx1 protein. Taken together, our data suggest that E6AP mediates the ubiquitin-dependent proteasomal degradation of Prx1. Our findings raise a possibility that E6AP may play a role in regulating Prx1-dependent intracellular oxidative signal transduction pathways.
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Peroxirredoxinas/metabolismo , Ubiquitina-Proteína Ligasas/metabolismo , Antioxidantes , Línea Celular , Humanos , Oxidación-Reducción , Unión Proteica , Transducción de Señal , UbiquitinaRESUMEN
Epidemiological data indicate a close relationship between chronic hepatitis C virus (HCV) infection and B-cell non-Hodgkin's lymphoma (B-NHL), suggesting that chronic HCV infection is, at least in part, associated with B-lymphomagenesis. However, experimental data concerning these conditions remains elusive. In this study, we confirmed that peripheral blood B cells of chronic hepatitis C (CHC) patients were infected with HCV. Expression levels of activation-induced cytidine deaminase (AID) which are thought to be associated with occurrence of B-NHL were analyzed in these CHC B cells. It was demonstrated that AID mRNA/protein levels in CHC B cells were dramatically increased compared with those of healthy subjects. Furthermore, expression levels of several previously reported prognostic B-NHL marker genes in the B cell subset of CHC patients were increased. These results suggest a possible relationship between chronic HCV infection and B-lymphomagenesis.
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Linfocitos B/virología , Hepatitis C Crónica/genética , Linfoma de Células B/genética , Linfoma de Células B/virología , Biomarcadores de Tumor/análisis , Biomarcadores de Tumor/genética , Citidina Desaminasa/biosíntesis , Ensayo de Inmunoadsorción Enzimática , Femenino , Expresión Génica , Hepatitis C Crónica/sangre , Hepatitis C Crónica/complicaciones , Humanos , Immunoblotting , Masculino , Persona de Mediana Edad , ARN Mensajero/análisis , ARN Viral/análisis , ARN Viral/aislamiento & purificación , Reacción en Cadena de la Polimerasa de Transcriptasa InversaRESUMEN
This essay traces my engagement with Michèle Grossen's ideas of a dialogical perspective on interaction analysis (Grossen Integrative Psychological and Behavioral Science, 1-22, 2009) and highlights a process account of self in interaction. Firstly I draw on Turner's concept of liminality with respect to the transformative, temporal significance in interaction. Secondly I explored further the conversation analytic concepts such as formulation and reformulation as a viable analytical tool for a dialogical perspective. Lastly, I addressed the issue of interaction in institutional settings, in particular with interactional asymmetries of interaction, whilst relativising the I-position dialogical perspective. I explore insights from social anthropology as well as revisiting conversation analysis and discursive psychology, concluding that a promising direction would be sought through a cross-fertilisation between dialogism and other sibling perspectives concerning language use, communication, social action and discourse- and narrative-based analyses.