RESUMO
BACKGROUND: In 2016, an influenza A(H7N2) virus outbreak occurred in cats in New York City's municipal animal shelters. One human infection was initially detected. METHODS: We conducted a serological survey using a novel approach to rule out cross-reactive antibodies to other seasonal influenza viruses to determine whether additional A(H7N2) human infections had occurred and to assess exposure risk. RESULTS: Of 121 shelter workers, one had serological evidence of A(H7N2) infection, corresponding to a seroprevalence of 0.8% (95% confidence interval, .02%-4.5%). Five persons exhibited low positive titers to A(H7N2) virus, indicating possible infection; however, we could not exclude cross-reactive antibody responses to seasonal influenza viruses. The remaining 115 persons were seronegative. The seropositive person reported multiple direct cat exposures without using personal protective equipment and mild illness with subjective fever, runny nose, and sore throat. CONCLUSIONS: We identified a second case of A(H7N2) infection from this outbreak, providing further evidence of cat-to-human transmission of A(H7N2) virus.
Assuntos
Anticorpos Antivirais/sangue , Surtos de Doenças/veterinária , Vírus da Influenza A Subtipo H7N2/imunologia , Influenza Aviária/virologia , Influenza Humana/virologia , Infecções por Orthomyxoviridae/veterinária , Adulto , Idoso , Animais , Aves , Gatos , Reações Cruzadas , Feminino , Humanos , Vírus da Influenza A Subtipo H7N2/isolamento & purificação , Influenza Humana/transmissão , Masculino , Pessoa de Meia-Idade , Cidade de Nova Iorque/epidemiologia , Infecções por Orthomyxoviridae/epidemiologia , Infecções por Orthomyxoviridae/virologia , Estudos Soroepidemiológicos , ZoonosesRESUMO
We report on 9 cases of male-to-female sexual transmission of Zika virus in the United States occurring January-April 2016. This report summarizes new information about both timing of exposure and symptoms of sexually transmitted Zika virus disease, and results of semen testing for Zika virus from 2 male travelers.
Assuntos
Doenças Virais Sexualmente Transmissíveis/epidemiologia , Infecção por Zika virus/epidemiologia , Infecção por Zika virus/transmissão , Zika virus , Adulto , Notificação de Doenças , Feminino , História do Século XXI , Humanos , Masculino , Pessoa de Meia-Idade , RNA Viral , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Estações do Ano , Doenças Virais Sexualmente Transmissíveis/diagnóstico , Doenças Virais Sexualmente Transmissíveis/história , Avaliação de Sintomas , Viagem , Estados Unidos/epidemiologia , Adulto Jovem , Zika virus/classificação , Zika virus/genética , Zika virus/imunologia , Infecção por Zika virus/diagnóstico , Infecção por Zika virus/históriaRESUMO
Zika virus is a flavivirus closely related to dengue, West Nile, and yellow fever viruses. Although spread is primarily by Aedes species mosquitoes, two instances of sexual transmission of Zika virus have been reported, and replicative virus has been isolated from semen of one man with hematospermia. On February 5, 2016, CDC published recommendations for preventing sexual transmission of Zika virus. Updated prevention guidelines were published on February 23. During February 6-22, 2016, CDC received reports of 14 instances of suspected sexual transmission of Zika virus. Among these, two laboratory-confirmed cases and four probable cases of Zika virus disease have been identified among women whose only known risk factor was sexual contact with a symptomatic male partner with recent travel to an area with ongoing Zika virus transmission. Two instances have been excluded based on additional information, and six others are still under investigation. State, territorial, and local public health departments, clinicians, and the public should be aware of current recommendations for preventing sexual transmission of Zika virus, particularly to pregnant women. Men who reside in or have traveled to an area of ongoing Zika virus transmission and have a pregnant partner should abstain from sexual activity or consistently and correctly use condoms during sex with their pregnant partner for the duration of the pregnancy.
Assuntos
Comportamento Sexual/estatística & dados numéricos , Viagem , Infecção por Zika virus/diagnóstico , Infecção por Zika virus/transmissão , Zika virus/isolamento & purificação , Adulto , Centers for Disease Control and Prevention, U.S. , Preservativos/estatística & dados numéricos , Feminino , Guias como Assunto , Humanos , Masculino , Pessoa de Meia-Idade , Gravidez , Estados Unidos , Adulto JovemRESUMO
CDC issued interim guidance for the prevention of sexual transmission of Zika virus on February 5, 2016. The following recommendations apply to men who have traveled to or reside in areas with active Zika virus transmission and their female or male sex partners. These recommendations replace the previously issued recommendations and are updated to include time intervals after travel to areas with active Zika virus transmission or after Zika virus infection for taking precautions to reduce the risk for sexual transmission. This guidance defines potential sexual exposure to Zika virus as any person who has had sex (i.e., vaginal intercourse, anal intercourse, or fellatio) without a condom with a man who has traveled to or resides in an area with active Zika virus transmission. This guidance will be updated as more information becomes available.
Assuntos
Guias como Assunto , Doenças Virais Sexualmente Transmissíveis/prevenção & controle , Infecção por Zika virus/prevenção & controle , Centers for Disease Control and Prevention, U.S. , Preservativos/estatística & dados numéricos , Feminino , Humanos , Masculino , Programas de Rastreamento , Gravidez , Características de Residência/estatística & dados numéricos , Abstinência Sexual , Viagem/estatística & dados numéricos , Estados Unidos , Infecção por Zika virus/transmissãoRESUMO
Zika virus is an emerging mosquito-borne flavivirus. Recent outbreaks of Zika virus disease in the Pacific Islands and the Region of the Americas have identified new modes of transmission and clinical manifestations, including adverse pregnancy outcomes. However, data on the epidemiology and clinical findings of laboratory-confirmed Zika virus disease remain limited. During January 1, 2015-February 26, 2016, a total of 116 residents of 33 U.S. states and the District of Columbia had laboratory evidence of recent Zika virus infection based on testing performed at CDC. Cases include one congenital infection and 115 persons who reported recent travel to areas with active Zika virus transmission (n = 110) or sexual contact with such a traveler (n = 5). All 115 patients had clinical illness, with the most common signs and symptoms being rash (98%; n = 113), fever (82%; 94), and arthralgia (66%; 76). Health care providers should educate patients, particularly pregnant women, about the risks for, and measures to prevent, infection with Zika virus and other mosquito-borne viruses. Zika virus disease should be considered in patients with acute onset of fever, rash, arthralgia, or conjunctivitis, who traveled to areas with ongoing Zika virus transmission (http://www.cdc.gov/zika/geo/index.html) or who had unprotected sex with a person who traveled to one of those areas and developed compatible symptoms within 2 weeks of returning.
Assuntos
Surtos de Doenças , Viagem , Infecção por Zika virus/diagnóstico , Zika virus/isolamento & purificação , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Pessoa de Meia-Idade , Gravidez , Complicações Infecciosas na Gravidez/diagnóstico , Estados Unidos/epidemiologia , Adulto Jovem , Infecção por Zika virus/epidemiologiaRESUMO
CDC recommends Zika virus testing for potentially exposed persons with signs or symptoms consistent with Zika virus disease, and recommends that health care providers offer testing to asymptomatic pregnant women within 12 weeks of exposure. During January 3-March 5, 2016, Zika virus testing was performed for 4,534 persons who traveled to or moved from areas with active Zika virus transmission; 3,335 (73.6%) were pregnant women. Among persons who received testing, 1,541 (34.0%) reported at least one Zika virus-associated sign or symptom (e.g., fever, rash, arthralgia, or conjunctivitis), 436 (9.6%) reported at least one other clinical sign or symptom only, and 2,557 (56.4%) reported no signs or symptoms. Among 1,541 persons with one or more Zika virus-associated symptoms who received testing, 182 (11.8%) had confirmed Zika virus infection. Among the 2,557 asymptomatic persons who received testing, 2,425 (94.8%) were pregnant women, seven (0.3%) of whom had confirmed Zika virus infection. Although risk for Zika virus infection might vary based on exposure-related factors (e.g., location and duration of travel), in the current setting in U.S. states, where there is no local transmission, most asymptomatic pregnant women who receive testing do not have Zika virus infection.
Assuntos
Programas de Rastreamento/estatística & dados numéricos , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/epidemiologia , Infecção por Zika virus/diagnóstico , Infecção por Zika virus/epidemiologia , Artralgia , Centers for Disease Control and Prevention, U.S. , Conjuntivite , Exantema , Feminino , Febre , Humanos , Guias de Prática Clínica como Assunto , Gravidez , Autorrelato , Viagem , Estados Unidos/epidemiologia , Zika virus/isolamento & purificaçãoRESUMO
CDC has updated its interim guidance for U.S. health care providers caring for infants born to mothers with possible Zika virus infection during pregnancy (1). Laboratory testing is recommended for 1) infants born to mothers with laboratory evidence of Zika virus infection during pregnancy and 2) infants who have abnormal clinical or neuroimaging findings suggestive of congenital Zika syndrome and a maternal epidemiologic link suggesting possible transmission, regardless of maternal Zika virus test results. Congenital Zika syndrome is a recently recognized pattern of congenital anomalies associated with Zika virus infection during pregnancy that includes microcephaly, intracranial calcifications or other brain anomalies, or eye anomalies, among others (2). Recommended infant laboratory evaluation includes both molecular (real-time reverse transcription-polymerase chain reaction [rRT-PCR]) and serologic (immunoglobulin M [IgM]) testing. Initial samples should be collected directly from the infant in the first 2 days of life, if possible; testing of cord blood is not recommended. A positive infant serum or urine rRT-PCR test result confirms congenital Zika virus infection. Positive Zika virus IgM testing, with a negative rRT-PCR result, indicates probable congenital Zika virus infection. In addition to infant Zika virus testing, initial evaluation of all infants born to mothers with laboratory evidence of Zika virus infection during pregnancy should include a comprehensive physical examination, including a neurologic examination, postnatal head ultrasound, and standard newborn hearing screen. Infants with laboratory evidence of congenital Zika virus infection should have a comprehensive ophthalmologic exam and hearing assessment by auditory brainstem response (ABR) testing before 1 month of age. Recommendations for follow-up of infants with laboratory evidence of congenital Zika virus infection depend on whether abnormalities consistent with congenital Zika syndrome are present. Infants with abnormalities consistent with congenital Zika syndrome should have a coordinated evaluation by multiple specialists within the first month of life; additional evaluations will be needed within the first year of life, including assessments of vision, hearing, feeding, growth, and neurodevelopmental and endocrine function. Families and caregivers will also need ongoing psychosocial support and assistance with coordination of care. Infants with laboratory evidence of congenital Zika virus infection without apparent abnormalities should have ongoing developmental monitoring and screening by the primary care provider; repeat hearing testing is recommended. This guidance will be updated when additional information becomes available.
RESUMO
Zika virus is an emerging mosquito-borne flavivirus that typically causes an asymptomatic infection or mild illness, although infection during pregnancy is a cause of microcephaly and other serious brain abnormalities. Guillain-Barré syndrome and other neurologic complications can occur in adults after Zika virus infection. However, there are few published reports describing postnatally acquired Zika virus disease among children. During January 2015-July 2016, a total of 158 cases of confirmed or probable postnatally acquired Zika virus disease among children aged <18 years were reported to CDC from U.S. states. The median age was 14 years (range = 1 month-17 years), and 88 (56%) were female. Two (1%) patients were hospitalized; none developed Guillain-Barré syndrome, and none died. All reported cases were travel-associated. Overall, 129 (82%) children had rash, 87 (55%) had fever, 45 (29%) had conjunctivitis, and 44 (28%) had arthralgia. Health care providers should consider a diagnosis of Zika virus disease in children who have an epidemiologic risk factor and clinically compatible illness, and should report cases to their state or local health department.
Assuntos
Infecção por Zika virus/diagnóstico , Infecção por Zika virus/transmissão , Zika virus/isolamento & purificação , Adolescente , Artralgia/virologia , Criança , Pré-Escolar , Conjuntivite/virologia , Exantema/virologia , Feminino , Febre/virologia , Humanos , Lactente , Masculino , Gravidez , Complicações Infecciosas na Gravidez/diagnóstico , Fatores de Tempo , Viagem , Estados Unidos , Infecção por Zika virus/terapiaRESUMO
From October through mid-December 2015, influenza activity remained low in most regions of the United States. Activity began to increase in late December 2015 and continued to increase slowly through early February 2016. Influenza A viruses have been most frequently identified, with influenza A (H3N2) viruses predominating during October until early December, and influenza A (H1N1)pdm09 viruses predominating from mid-December until early February. Most of the influenza viruses characterized during that time are antigenically similar to vaccine virus strains recommended for inclusion in the 2015-16 Northern Hemisphere vaccines. This report summarizes U.S. influenza activity* during October 4, 2015-February 6, 2016, and updates the previous summary (1).
Assuntos
Vírus da Influenza A Subtipo H1N1/isolamento & purificação , Vírus da Influenza A Subtipo H3N2/isolamento & purificação , Vírus da Influenza B/isolamento & purificação , Influenza Humana/epidemiologia , Vigilância da População , Adolescente , Adulto , Idoso , Antivirais/farmacologia , Criança , Mortalidade da Criança , Pré-Escolar , Farmacorresistência Viral , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Lactente , Recém-Nascido , Vírus da Influenza A Subtipo H1N1/efeitos dos fármacos , Vírus da Influenza A Subtipo H1N1/genética , Vírus da Influenza A Subtipo H3N2/efeitos dos fármacos , Vírus da Influenza A Subtipo H3N2/genética , Vírus da Influenza B/efeitos dos fármacos , Vírus da Influenza B/genética , Influenza Humana/mortalidade , Influenza Humana/virologia , Masculino , Pessoa de Meia-Idade , Pneumonia/mortalidade , Gravidez , Estações do Ano , Estados Unidos/epidemiologia , Adulto JovemRESUMO
CDC has updated its interim guidance for U.S. health care providers caring for women of reproductive age with possible Zika virus exposure to include recommendations on counseling women and men with possible Zika virus exposure who are interested in conceiving. This guidance is based on limited available data on persistence of Zika virus RNA in blood and semen. Women who have Zika virus disease should wait at least 8 weeks after symptom onset to attempt conception, and men with Zika virus disease should wait at least 6 months after symptom onset to attempt conception. Women and men with possible exposure to Zika virus but without clinical illness consistent with Zika virus disease should wait at least 8 weeks after exposure to attempt conception. Possible exposure to Zika virus is defined as travel to or residence in an area of active Zika virus transmission ( http://www.cdc.gov/zika/geo/active-countries.html), or sex (vaginal intercourse, anal intercourse, or fellatio) without a condom with a man who traveled to or resided in an area of active transmission. Women and men who reside in areas of active Zika virus transmission should talk with their health care provider about attempting conception. This guidance also provides updated recommendations on testing of pregnant women with possible Zika virus exposure. These recommendations will be updated when additional data become available.
Assuntos
Surtos de Doenças/prevenção & controle , Pessoal de Saúde , Guias de Prática Clínica como Assunto , Infecção por Zika virus/prevenção & controle , Adolescente , Adulto , Centers for Disease Control and Prevention, U.S. , Testes Diagnósticos de Rotina/normas , Aconselhamento Diretivo/normas , Feminino , Humanos , Infertilidade Feminina/terapia , Masculino , Programas de Rastreamento/normas , Cuidado Pré-Concepcional/normas , Gravidez , Complicações Infecciosas na Gravidez/prevenção & controle , Características de Residência/estatística & dados numéricos , Viagem/estatística & dados numéricos , Estados Unidos/epidemiologia , Adulto Jovem , Infecção por Zika virus/transmissãoRESUMO
This paper explored how UK trans* youth experienced Physical Education (PE) during secondary school, and its impact on remaining physically active. Seven self-identified trans* people aged 14-25 took part in semi-structured interviews. Findings show participants' performances of gender were restricted by practices privileging the "natural" gender binary. Following school, medical procedures or other physical changes were desired in order to "pass" as their chosen gender before physical activity could occur. Recommendations are presented for improvements to PE policy for trans* youth.
Assuntos
Minorias Sexuais e de Gênero , Esportes , Transexualidade , Adolescente , Humanos , Identidade de Gênero , Exercício FísicoRESUMO
The identification of long-term missing persons and unidentified human remains is a global challenge. Many people stay on missing persons registers, with unidentified human remains stored for extended periods in mortuaries around the world. Research exploring public and/or family support for providing DNA in long-term missing persons cases is scarce. The aims of this study were to examine whether trust in police predicted the level of support for providing DNA and explore public/family support and concerns for providing DNA in such cases. Trust in police was measured through two widely used empirical attitude scales; "The Measures of Police Legitimacy and Procedural Justice". Support and concerns for giving DNA were measured through four hypothetical missing persons case scenarios. The results showed more positive attitudes towards police legitimacy and procedural justice significantly predicted support, with the percentage level of positive support across the four case types as follows: cases involving a long-term missing child (89%), elderly adult with dementia (83%), young adult with a history of runaway (76%), with the lowest level of support for an adult with an estranged family (73%). Participants also reported more concerns about providing DNA when the missing person circumstances involved family estrangement. Understanding levels of public/family support and concerns around providing DNA to police in missing persons cases is vital to ensure that DNA collection practices reflect what the public/family support and, wherever possible, alleviate public concerns.
Assuntos
Apoio Familiar , Aplicação da Lei , Criança , Idoso , Adulto Jovem , Humanos , Restos Mortais , Polícia , DNARESUMO
Identification of unidentified human remains, and long-term missing persons (LTMP) is imperative, allowing for missing persons to be reunited with their families, which could provide closure to families experiencing ongoing ambiguity surrounding the situation. However, identification remains problematic for several reasons, including the absence of DNA provision in the investigation. The research reported here is the second in a two-part series exploring public/family support for providing DNA in LTMP cases. In the first study, quantitative results showed that participants had concerns when asked if they thought there would be implications for a person providing DNA to police in LTMP cases. The aim of this second study was to explore further using qualitative methods the nuances and themes underpinning concerns for providing DNA in LTMP cases. Participants described their concerns about providing DNA in four hypothetical LTMP case scenarios (a child, an adult with dementia, a runaway 19-year-old adolescent, and an estranged adult). Through thematic content analysis, ten themes were identified. Nine themes run across all four LTMP case scenarios. The tenth theme was only observed in two scenarios; cases involving adolescents with a history of runaway, and in cases involving adults estranged from their family. Results showed public concerns differed according to LTMP case circumstances. Key findings point to public education about how DNA is used in LTMP investigations, the applicable legislation relating to police use of DNA in investigations and increasing public awareness around the benefits of DNA use in LTMP investigations. Potentional policy options are discussed that could guide the future development of nuanced police practice in different types of LTMP cases.
Assuntos
Polícia , Políticas , Adulto , Adolescente , Criança , Humanos , Adulto Jovem , Aplicação da Lei/métodosRESUMO
LGBTQ+ labels and terminology in society embed ideological assumptions and affect who gains community support and protection. In academia, terminology is also needed to help define study objects, methods, and goals. Academics therefore need to choose their words to be both precise and appropriate, adjusting to changes in societal language. This article assesses the evolution of LGBTQ+ terminology in the titles and abstracts of academic journal articles since 1900 to identify the main trends. Based on a search of 74 LGBTQ+ terms in Scopus, LGBTQ+ related journal articles have almost continually increased in prevalence since 1900. In parallel, the concept of homosexuality that dominated early research has almost disappeared, being replaced by the word gay or more specific terms, such as lesbian or bisexual. Transexual terminology has also been supplanted by transgender and trans* terminology. At various points in time other LGBTQ+ terms have emerged with activist, health professional and academic origins. These include multiple acronyms, inclusive phrases, and activity-specific phrases (e.g., men who have sex with men) that are not used by the LGBTQ+ community. Currently, no terminologies are dominant, with this plurality probably reflecting differing research needs.
Assuntos
Homossexualidade Feminina , Minorias Sexuais e de Gênero , Pessoas Transgênero , Masculino , Feminino , Humanos , Homossexualidade Masculina , Comportamento Sexual , BissexualidadeRESUMO
This study explores professional footballers' perceptions of where banter crosses the conceptual line into bullying. The study's focus is of importance, given the impact that abusive behaviors have been found to have on the welfare and safeguarding of English professional footballers. A phenomenological approach was adopted, which focused on the essence of the participants' perceptions and experiences. Guided by Interpretative Phenomenological Analysis (IPA), individual semi-structured interviews (M Duration = 44.10 min, SD = 10.81) were conducted with 18 male professional footballers (M age = 19.83 years, SD = 2.96) from three Premier League and Championship football clubs. The findings from this study revealed several key superordinate themes in relation to the dividing line between bullying and banter. These themes included "perception," "intentionality," "detecting the line," and "having a bit of banter." The findings demonstrate how perceptions of bullying and banter are nuanced by individual differences among the players and the culture of the professional football context. Specifically, it was found that the professional football context can legitimize forms of humor blurring the lines between bullying and banter, challenging the typically positive view of the concept of banter in this environment. From an applied perspective, these findings highlight the need for coaches, players, and football clubs more broadly to address cultural expectations around banter in their environment, while educating individuals around their own perceptions of bullying and banter.
RESUMO
BACKGROUND: There is a growing momentum in paediatric ethics to develop respectful research and healthcare protocols. We developed, tested and refined our 'Respectful Approach to Child-centred Healthcare' (ReACH), to underpin respectful participant interactions in a clinical trial. OBJECTIVE: To determine whether a ReACH-based approach is acceptable to children and parents, and effective in obtaining compliance with common healthcare assessments in a clinical trial of healthy 4-6-year-old children. METHODS: ReACH-based child assessments were evaluated at two baseline clinics and one post-intervention, using mixed methods. Children (n = 49; 46.9% female; mean age = 5.24±0.88 years at baseline) and their parents provided independent evaluation, via customised 5-point Likert scales and qualitative feedback. A dedicated child researcher evaluated adherence to the study ReACH principles. RESULTS: Children achieved compliance rates of 95% for body composition (BodPod) assessments; 89% for blood pressure measurements, and 92% (baseline) and 87% (post-intervention) for blood draws. Adherence to ReACH principles during clinic visits was positively associated with child compliance, significantly for baseline BodPod (p = 0.002) and blood test (p = 0.009) clinics. Satisfaction with BodPod protocols was positively associated with compliance, for children at baseline (p = 0.029) and for parents post-intervention (p <0.001). Parents rated the study itself very highly, with 91.7% satisfied at baseline and 100% post-intervention. Qualitative feedback reflected an enjoyable study experience for both parents and children. CONCLUSIONS: Adherence to our emerging ReACH approach was associated with high child compliance rates for common healthcare assessments, although no causality can be inferred at this preliminary stage of development. Participants expressed satisfaction with all aspects of the study. Our use of child-centred methods throughout a research intervention appears feasible and acceptable to children and their parents.
Assuntos
Atenção à Saúde/métodos , Criança , Creches/estatística & dados numéricos , Pré-Escolar , Método Duplo-Cego , Estudos de Viabilidade , Feminino , Nível de Saúde , Humanos , MasculinoRESUMO
PURPOSE: CpG oligodeoxynucleotides (CpG-ODN) are being investigated as cancer vaccine adjuvants because they mature plasmacytoid dendritic cells (PDC) into potent antigen-presenting cells. CpG-ODN also induce PDC to secrete chemokines that alter lymphocyte migration. Whether CpG-ODN TLR signals enhance antigen-specific immunity and/or trafficking in humans is unknown. EXPERIMENTAL DESIGN: We conducted a phase I study of CpG-ODN (1018 ISS) given as a vaccine adjuvant with granulocyte-macrophage colony-stimulating factor (GM-CSF) to induce T-cell immunity to a peptide vaccine from the tumor-associated antigen hTERT. RESULTS: The adjuvant effect was limited; only 1 of 16 patients showed a high-frequency hTERT-specific tetramer CD8(+) T-cell response. However, CpG-ODN induced marked, transient peripheral blood lymphopenia. Biopsies showed dense lymphocytic infiltration at the vaccine site clustered around activated PDC. In vitro, CpG-ODN-treated PDC induced T-cell migration, showing that CpG-ODN stimulation of human PDC was sufficient to chemoattract T cells. CONCLUSIONS: Our results show that (a) CpG-ODN with GM-CSF may not be an effective adjuvant strategy for hTERT peptide vaccines but (b) GM-CSF/CpG-ODN causes a PDC-mediated chemokine response that recruits T-cell migration to the peripheral tissues. These findings suggest a novel therapeutic role for targeted injections of CpG-ODN to direct lymphocyte migration to specific sites such as the tumor bed.
Assuntos
Vacinas Anticâncer/uso terapêutico , Células Dendríticas/imunologia , Fator Estimulador de Colônias de Granulócitos e Macrófagos/imunologia , Oligodesoxirribonucleotídeos/uso terapêutico , Linfócitos T/imunologia , Telomerase/imunologia , Vacinas de Subunidades Antigênicas/uso terapêutico , Adjuvantes Imunológicos , Vacinas Anticâncer/efeitos adversos , Movimento Celular , Humanos , Oligodesoxirribonucleotídeos/imunologia , Receptor Toll-Like 9/antagonistas & inibidoresRESUMO
OBJECTIVE: Research suggests a difference in sweet taste perception between non-Hispanic black (NHB) and non-Hispanic white (NHW) adults; however, limited research has examined sweet taste perception in relation to the dietary intake of sweet products. The aim of this study was to examine sweet taste perception and the consumption of sweet foods, beverages, and sugar in NHB and NHW adults, and to evaluate whether sweet taste perception is associated with dietary intake. METHODS: This cross-sectional study examined the association between race, sweet taste perception and sweet food, beverages, and sugar consumption in healthy, NHB and NHW adults. Seven day food records were analyzed in Nutrition Data System for Research software. Intensity of sweet taste perception was tested and the general labeled magnitude scale method was used to facilitate group comparisons. Independent t tests, Mann-Whitney tests, and Pearson correlations were used to assess associations. RESULTS: Participants were NHB (nâ¯=â¯98) and NHW (nâ¯=â¯90) adults, 41 ± 1 y of age (mean ± SEM) with energy intake of 2271 ± 53 kcal. Body mass index was higher in NHBs than in NHWs (36 ± 1 versus 32 ± 1 kg/m2, Pâ¯=â¯0.048), but no differences were observed in age, energy consumption, or total sugar intake. Sweet taste perception rating (median [interquartile range] NHB: 73.5 [63.9-83], NHW: 52.1 [46.4-57.7]; Pâ¯=â¯0.001) and added sugar intake (NHB: 39.4 g/1000 kcal [36.3-42.4], NHW: 30 g/1000 kcal [26.7-33.4]; P < 0.001) were greater in NHB. Perceived sweet taste intensity was positively associated with consumption of servings of sweet products among NHBs (R2â¯=â¯0.057, Pâ¯=â¯0.018) but not NHWs (R2â¯=â¯-0.012, Pâ¯=â¯0.314). CONCLUSIONS: NHBs have a higher intensity of sweet taste perception than NHWs. The positive association of sweet taste perception and sweet product consumption in NHBs suggests that a higher intensity of sweet taste perception may be associated with an increased proportion of energy consumption from added sugars.
Assuntos
População Negra/psicologia , Ingestão de Alimentos/etnologia , Preferências Alimentares/etnologia , Edulcorantes/análise , Percepção Gustatória , População Branca/psicologia , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
BACKGROUND: The differentiation of naive T and B cells into memory lymphocytes is essential for immunity to pathogens. Therapeutic manipulation of this cellular differentiation program could improve vaccine efficacy and the in vitro expansion of memory cells. However, chemical screens to identify compounds that induce memory differentiation have been limited by 1) the lack of reporter-gene or functional assays that can distinguish naive and memory-phenotype T cells at high throughput and 2) a suitable cell-line representative of naive T cells. RESULTS: Here, we describe a method for gene-expression based screening that allows primary naive and memory-phenotype lymphocytes to be discriminated based on complex genes signatures corresponding to these differentiation states. We used ligation-mediated amplification and a fluorescent, bead-based detection system to quantify simultaneously 55 transcripts representing naive and memory-phenotype signatures in purified populations of human T cells. The use of a multi-gene panel allowed better resolution than any constituent single gene. The method was precise, correlated well with Affymetrix microarray data, and could be easily scaled up for high-throughput. CONCLUSION: This method provides a generic solution for high-throughput differentiation screens in primary human T cells where no single-gene or functional assay is available. This screening platform will allow the identification of small molecules, genes or soluble factors that direct memory differentiation in naive human lymphocytes.
Assuntos
Linfócitos T CD4-Positivos/imunologia , Galectina 3/imunologia , Perfilação da Expressão Gênica , Memória Imunológica/genética , Linfócitos T CD4-Positivos/metabolismo , Técnicas de Cultura de Células , Diferenciação Celular/imunologia , Galectina 3/genética , Humanos , Separação Imunomagnética , Técnicas de Amplificação de Ácido Nucleico , Análise de Sequência com Séries de Oligonucleotídeos , Molécula-1 de Adesão Celular Endotelial a Plaquetas/genética , Molécula-1 de Adesão Celular Endotelial a Plaquetas/imunologia , Receptores CCR7/genética , Receptores CCR7/imunologia , Reprodutibilidade dos Testes , Receptor fas/genética , Receptor fas/imunologiaRESUMO
BACKGROUND: Binge drinking has been highlighted as a growing problem in the UK, particularly amongst females aged 18-25 years. University of Leeds is situated within a population that has one of the highest reported statistics of binge drinking in the UK. In September 2006, the 'Unit 1421' campaign was launched at University of Leeds with the aim to promoted sensible drinking amongst students. The aim of this study is to explore female perspectives on binge drinking and on 'Unit 1421' campaign in the University of Leeds. METHODS: Using a purposive sample, two focus groups were conducted with 12 female students aged 18-23 years within university grounds. Participants were recruited via email and poster advertisements on campus. RESULTS: Four main themes emerged from the data: (i) lay perception of binge drinking; (ii) pressures of matching the drinking patterns of male peers; (iii) student rite of passage; (iv) evaluation of the 'Unit 1421' campaign. CONCLUSION: The social context of student life impacts greatly upon students' choices to binge drink. The norms, beliefs and morals governing student culture and the use of alcohol to assert identity should be considered when tailoring health promotion efforts to this target audience. Larger qualitative and ultimately quantitative studies are warranted to extrapolate and test the social pressures on drinking in this age group.