Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 284
Filtrar
Mais filtros

Tipo de documento
Intervalo de ano de publicação
1.
Artigo em Inglês | MEDLINE | ID: mdl-37669078

RESUMO

BACKGROUND AND OBJECTIVE: There are still gaps in the knowledge regarding the effectiveness of house dust mite (HDM) sublingual immunotherapy (SLIT) on allergic rhinitis (AR) and asthma (AA)-associated sleep disorders. A non-interventional study was conducted to assess the effect of the Standardized quality (SQ) HDM SLIT-tablet on safety and symptoms in adults with HDM respiratory allergies. The aim was to describe the status of insomnia and daytime sleepiness in AR and/or AA patients treated with the SQ HDM SLIT-tablet. METHODS: This was a 12-month multicenter, longitudinal and prospective study. Participants started the SQ HDM SLIT-tablet for moderate-to-severe HDM AR, persistent despite the use of symptom-relieving medication; or HDM AA not well controlled by inhaled corticosteroids and associated with mild-to-severe HDM AR. Sleep symptoms were measured using the Insomnia Severity Index (ISI) questionnaire and the Epworth Sleepiness Scale (ESS). RESULTS: A total of 1,526 adult patients were enrolled and 1,483 were included in the analysis. At baseline, 41.5% of patients reported sleep disorders: 77.0% of them had insomnia and 28.9% suffered from excessive daytime sleepiness. Insomnia was significantly more frequent among patients with uncontrolled AR (83.1%) than those with controlled AR (52.6%) (p<0.0001). Over time, 48.3% and 59.7% of patients reported an improvement greater than the minimal clinically important difference on the ISI and ESS scales respectively. CONCLUSION: In patients with HDM AR and/or asthma associated sleep disorders, an improvement in subjective insomnia and sleepiness was observed after one year of treatment with the SQ HDM SLIT-tablet in a real-life setting.

2.
BMC Pregnancy Childbirth ; 21(1): 632, 2021 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-34535094

RESUMO

BACKGROUND: Immunological protection via breastfeeding is well known. The immunological profile of human milk changes during lactation. No clinical trials have been conducted in lactating women with the newest mRNA vaccines against SARS- CoV-2. A Few studies have shown the presence of antibodies in breastmilk after vaccination. The aim of this work is to study possible antibodies transfer via breastmilk and also the immunological characteristics of lactating women compared to non-lactating women, after using the BNT162b2 Pfizer vaccine. METHODS: This is a prospective cohort study with a convenience homogenous sample of 24 healthcare workers (14 lactating and 10 non-lactating women) enrolled at the time of COVID-19 vaccination. Clinical data was registered in a questionnaire. Titers of SARS-CoV-2 spike IgG, IgA and IgM were quantified in post vaccination blood and human milk. Antibody quantification was performed by an in-house ELISA to SARS-CoV-2 trimeric spike protein. RESULTS: All women showed immunity after vaccination with positive antibodies for IgM, IgA and IgG antibodies. The dominant serum antibody response was IgG. Modest levels of antibodies in breastmilk of lactating mothers were observed in this study, especially IgG in 42.9%. There was a moderate association between higher titers of IgG and a longer duration of breastfeeding (R= 0.55, p=0.041). CONCLUSIONS: Evidence of antibody transfer in human milk after COVID-19 vaccination is scarce. The presence of antibodies in human milk is reported, but immunization through breastfeeding is still to be established.


Assuntos
Anticorpos Antivirais/metabolismo , Aleitamento Materno , Vacinas contra COVID-19/imunologia , COVID-19/prevenção & controle , Lactação/imunologia , Leite Humano/imunologia , SARS-CoV-2/imunologia , Adulto , Vacina BNT162 , Biomarcadores/metabolismo , COVID-19/imunologia , Estudos de Casos e Controles , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Imunização Passiva , Estudos Prospectivos
3.
J Investig Allergol Clin Immunol ; 30(4): 229-253, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31932268

RESUMO

BACKGROUND AND OBJECTIVE: Drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is a complex multisystemic severe drug hypersensitivity reaction whose diagnosis and management are troublesome. DRESS syndrome requires management by various specialists. The correct identification of the culprit drug is essential to ensure safe future therapeutic options for the patient. There are no previous Spanish guidelines or consensus statements on DRESS syndrome. Objective: To draft a review and guidelines on the clinical diagnosis, allergy work-up, management, treatment, and prevention of DRESS syndrome in light of currently available scientific evidence and the experience of experts from multiple disciplines. METHODS: These guidelines were drafted by a panel of allergy specialists from the Drug Allergy Committee of the Spanish Society of Allergy and Clinical Immunology (SEAIC), together with other medical specialists involved in the management of DRESS syndrome and researchers from the PIELenRed consortium. A review was conducted of scientific papers on DRESS syndrome, and the expert panel evaluated the quality of the evidence of the literature and provided grades of recommendation. Whenever evidence was lacking, a consensus was reached among the experts. RESULTS: The first Spanish guidelines on DRESS syndrome are now being published. Important aspects have been addressed, including practical recommendations about clinical diagnosis, identification of the culprit drug through the Spanish pharmacovigilance system algorithm, and the allergy work-up. Recommendations are provided on management, treatment, and prevention. Algorithms for the management of DRESS in the acute and recovery phases have been drawn up. Expert consensus-based stepwise guidelines for the management and treatment of DRESS syndrome are provided.


Assuntos
Síndrome de Hipersensibilidade a Medicamentos/diagnóstico , Fígado/metabolismo , Pele/patologia , Algoritmos , Alopurinol/efeitos adversos , Antibacterianos/efeitos adversos , Anticonvulsivantes/efeitos adversos , Comorbidade , Consenso , Síndrome de Hipersensibilidade a Medicamentos/tratamento farmacológico , Síndrome de Hipersensibilidade a Medicamentos/epidemiologia , Eosinofilia , Prova Pericial , Humanos , Leucocitose , Fígado/patologia , Fatores de Risco , Espanha/epidemiologia
4.
Eur Arch Otorhinolaryngol ; 276(9): 2595-2601, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31300842

RESUMO

PURPOSE: The treatment of peritonsillar abscess (PTA) is still controversial regarding the best method of drainage to perform. This study aims to compare effectiveness and safety of needle aspiration versus incision and drainage under local anaesthesia for the initial treatment of PTA. METHODS: A retrospective review of patients (age > 15 years) admitted in two tertiary medical centres for a PTA between November 2010 and October 2016 was performed. Patients were divided into two groups according to the type of drainage: needle aspiration or incision and drainage, under local anaesthesia. The primary outcome was the length of hospital stay; the need to repeat the procedure or to go to the operating room was also assessed. Complications or adverse events were listed in each group to assess safety. RESULTS: Over a 6-year period, 182 patients were admitted for a PTA and included in the analysis, with 82 patients in the aspiration group and 100 patients in the incision group. Mean age was 36.3 years, with a sex ratio of 1.33. The length of hospital stay ranged from 1 to 7 days (mean 2.7 days, median 2 days) with a median length of stay of 3.0 days (interquartile range 2-4) in the aspiration group versus 2.0 days (IQR 2-3) in patients who underwent incision and drainage (p = 0.009). A repetition of the needle aspiration was made for 46.3% of patients versus 10% of repetition of the procedure in the incision group (p = 0.0001). 12 patients (14%) of the aspiration group and 4 patients (4%) of the incision group required an additional drainage under general anaesthesia (p < 0.001). We found no differences regarding safety in both groups. CONCLUSION: Our study showed a significant decrease in the length of hospital stay in patients admitted for a PTA who underwent an initial incision and drainage under local anaesthesia, compared to needle aspiration, as well as a lower risk of repeating the procedure. A well-designed prospective and randomized study on a larger sample of patients is required to support these findings.


Assuntos
Paracentese , Abscesso Peritonsilar/cirurgia , Complicações Pós-Operatórias , Tonsilectomia , Adulto , Anestesia Local/métodos , Drenagem/métodos , Feminino , França/epidemiologia , Humanos , Tempo de Internação/estatística & dados numéricos , Masculino , Paracentese/efeitos adversos , Paracentese/métodos , Abscesso Peritonsilar/epidemiologia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/prevenção & controle , Complicações Pós-Operatórias/cirurgia , Reoperação/estatística & dados numéricos , Estudos Retrospectivos , Tonsilectomia/efeitos adversos , Tonsilectomia/métodos
5.
Public Health ; 171: 135-138, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31132516

RESUMO

OBJECTIVES: This study examines the relationships among self-reported body mass index (BMI), weight perception, and weight intention of rural Appalachian middle school students in southwest Virginia where there are higher rates of health disparities influenced by culture, economic distress, and geographic barriers. STUDY DESIGN: This was a cross-sectional observational study. METHODS: Sixth and seventh grade students (n = 492) in seven, rural, southwest Appalachian Virginia middle schools participated in this study in the spring of 2015. RESULTS: A relatively high percentage of students classified as overweight/obese based on self-reported BMI (n = 196, 39.8%), yet only 29.3% (n = 144) of students believed themselves to be overweight. More boys (48.3%) than girls (29.8%) were classified based on self-reported BMI to be overweight, yet 44.9% of girls indicated the desire to lose weight. CONCLUSIONS: Distinct differences between sexes were found, where more boys were classified as overweight/obese and more girls wanted to lose weight. Previous studies have shown that perspectives of overweight/obese differ in Appalachian communities. These results emphasize the need for both region-specific and sex-specific programs for healthy body weights particularly in rural Appalachian United States.


Assuntos
Peso Corporal , Intenção , Obesidade Infantil/psicologia , Estudantes/psicologia , Adolescente , Índice de Massa Corporal , Criança , Estudos Transversais , Feminino , Humanos , Masculino , Obesidade Infantil/epidemiologia , População Rural/estatística & dados numéricos , Instituições Acadêmicas , Autorrelato , Estudantes/estatística & dados numéricos , Virginia/epidemiologia
6.
Clin Anat ; 32(2): 169-175, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29577433

RESUMO

Facial-nerve palsy is the most common complication during facial surgery. However, there are few detailed reports on the distribution of the terminal branches of the facial nerve to the mimetic muscles. This also applies to the communicating branches. The aim of our study was to assess the variability of communicant and terminal branches of the facial nerve in humans. This prospective study involved anatomical dissections and intraoperative electric stimulation of facial nerves. We first performed 30 dissections to define the branching patterns of the extracranial facial nerve, with particular focus on the penetrating points into the mimetic muscles. We then studied and compared these preliminary data with 14 operative facial stimulations conducted during parotidectomies. Each trunk and branch received systematic electrostimulation. The electrostimulation and facial-and-neck movements were analyzed by two independent reviewers. The peripheral branching and intercommunication of the facial branches were highly variable. Combining electrostimulation and dissections, the frontalis muscle, the depressor labii inferioris and the platysma showed little nerve recuperation whereas the sphincter muscles (orbicularis ori and oculi) were anatomically protected. Facial-muscle innervation differed among individuals. We found complex variations in the facial branching mode. Our study highlights the branches and corresponding areas that could be considered anatomically risky. Clin. Anat. 32:169-175, 2019. © 2018 Wiley Periodicals, Inc.


Assuntos
Dissecação , Estimulação Elétrica , Face/cirurgia , Músculos Faciais/inervação , Nervo Facial/anatomia & histologia , Cadáver , Face/inervação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
8.
Acta Paediatr ; 107(3): 436-441, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29150862

RESUMO

AIM: Repeated, ongoing exposure to pain influences the growth, cognitive and motor functions, behaviour, personality and neurodevelopment of preterm infants. We compared the analgesic effects of expressed breast milk (EBM) and 24% oral sucrose on preterm neonates during venipuncture. METHODS: This multicentre randomised, noninferiority, crossover trial focused on five neonatal university units in Madrid, Spain, from October 2013 to October 2014. It comprised 66 preterm infants born at less than 37 weeks and randomly split into two groups. They received either EBM or sucrose two minutes before venepuncture, together with nonnutritive sucking and swaddling, then the opposite procedure at a later point. Pain was measured with the premature infant pain profile (PIPP) and crying was also measured. RESULTS: There were no statistically significant differences between the groups. The PIPP scores were seven (4-9) with breast milk and six (4-8.25) with sucrose (p = 0.28). The 11 infants born at under 28 weeks of age showed higher median scores of nine (9-14) for breast milk and four (4-7) for sucrose (p = 0.009). CONCLUSION: EBM and 24% sucrose had the same analgesic effect during venipuncture in most of the preterm neonates, but sucrose worked better in extremely preterm infants.


Assuntos
Recém-Nascido Prematuro , Leite Humano , Manejo da Dor/métodos , Dor/prevenção & controle , Flebotomia/métodos , Sacarose/administração & dosagem , Administração Oral , Analgesia/métodos , Análise de Variância , Estudos Cross-Over , Feminino , Hospitais Universitários , Humanos , Recém-Nascido , Unidades de Terapia Intensiva Neonatal , Terapia Intensiva Neonatal/métodos , Masculino , Medição da Dor , Flebotomia/efeitos adversos , Espanha , Estatísticas não Paramétricas , Resultado do Tratamento
9.
Eur J Paediatr Dent ; 19(4): 300-302, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30567447

RESUMO

BACKGROUND: The palatal impaction of maxillary canine is a quite common yet challenging clinical condition that orthodontists have to face in the everyday practice. The purpose of this report is to describe and discuss a case involving the uncovering of an upper canine and it subsequent spontaneous eruption. CASE REPORT: The diagnostic and therapeutic protocol of a case with a palatally impacted canine is presented. The upper right canine was uncovered with an open surgical approach. Removal of the attached gingiva and bone covering the crown enhanced the tooth spontaneous eruption, while the first levelling and aligning phase of the treatment was performed. This approach results in a shorter overall treatment time. This protocol produced an aesthetic, healthy and functional result, which was stable at the two-year post-treatment follow-up.


Assuntos
Dente Canino/cirurgia , Ortodontia Corretiva/métodos , Dente Impactado/cirurgia , Adolescente , Dente Canino/diagnóstico por imagem , Feminino , Humanos , Maxila/diagnóstico por imagem , Maxila/cirurgia , Radiografia Panorâmica , Retalhos Cirúrgicos , Erupção Dentária , Dente Impactado/diagnóstico por imagem
10.
Eur J Nutr ; 56(4): 1621-1628, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27029919

RESUMO

PURPOSE: Obesity increases the risk of cardiovascular disease, type 2 diabetes mellitus and cancer development. Autophagy and apoptosis are critical processes for development and homeostasis in multicellular organisms and have been linked to a variety of disorders. We aimed to investigate whether the quantity and quality of dietary fat can influence these processes in the adipose tissue of obese people. METHODS: A randomized, controlled trial within the LIPGENE study assigned 39 obese people with metabolic syndrome to 1 of 4 diets: (a) a high-saturated fatty acid diet, (b) a high-monounsaturated fatty acid (HMUFA) diet, and (c, d) two low-fat, high-complex carbohydrate diets supplemented with long-chain n-3 polyunsaturated fatty acids (LFHCC n-3) or placebo (LFHCC), for 12 weeks each. RESULTS: We found an increase in the expression of autophagy-related BECN1 and ATG7 genes after the long-term consumption of the HMUFA diet (p = 0.001 and p = 0.004, respectively) and an increase in the expression of the apoptosis-related CASP3 gene after the long-term consumption of the LFHCC and LFHCC n-3 diets (p = 0.001 and p = 0.029, respectively). CASP3 and CASP7 gene expression changes correlated with HOMA index. CONCLUSION: Our results suggest that the processes of autophagy and apoptosis in adipose tissue may be modified by diet and that the consumption of a diet rich in monounsaturated fat may contribute to adipose tissue homeostasis by increasing autophagy. They also reinforce the notion that apoptosis in adipose tissue is linked to insulin resistance. CLINICAL TRIAL REGISTRATION NUMBER: ClinicalTrials.gov NCT00429195.


Assuntos
Adipócitos/citologia , Tecido Adiposo/fisiopatologia , Apoptose , Autofagia , Gorduras na Dieta/administração & dosagem , Adulto , Idoso , Proteína 7 Relacionada à Autofagia/genética , Proteína 7 Relacionada à Autofagia/metabolismo , Proteína Beclina-1/genética , Proteína Beclina-1/metabolismo , Glicemia/metabolismo , Caspase 3/genética , Caspase 3/metabolismo , Caspase 7/genética , Caspase 7/metabolismo , Dieta com Restrição de Gorduras , Dieta Hiperlipídica , Ácidos Graxos/administração & dosagem , Ácidos Graxos Monoinsaturados/administração & dosagem , Ácidos Graxos Ômega-3/administração & dosagem , Feminino , Regulação da Expressão Gênica , Homeostase , Humanos , Resistência à Insulina , Masculino , Síndrome Metabólica/fisiopatologia , Pessoa de Meia-Idade , Obesidade/fisiopatologia , Método Simples-Cego
11.
Surg Radiol Anat ; 39(11): 1203-1207, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28508924

RESUMO

PURPOSE: Epistaxis constitutes a significant proportion of the Otolaryngologist's emergency workload. Optimal management differs in relation to the anatomic origin of the bleeding. The outcome of our study was to determine which artery(ies) could be considered as the cause of severe bleeding in the context of severe epistaxis. METHODS: Fifty-five procedures of embolization preceded by angiography were reviewed. Medical records of interventionally treated patients were analysed for demographics, medical history, risk factors and clinical data. Angiographic findings were also assessed for active contrast extravasation (blush), vascular abnormality and embolised artery. RESULTS: Previous angiography showed an active contrast extravasation in only 20 procedures. The most common bleeding source was the sphenopalatine artery (SPA) followed by anterior ethmoïdal artery (AEA) and facial artery. Majority of multiple or bilateral extravasations occured in patients with systemic factors. CONCLUSIONS: A better understanding of the potential bleeding source might help and limit the risk of treatment failures. Our study confirms that the SPA is the most common cause of severe bleeding. We also emphasise the role of the AEA not only in traumatic context. Others arteries are rarely involved except in patients with comorbidities or frequent recurrences.


Assuntos
Artérias , Epistaxe/diagnóstico por imagem , Epistaxe/terapia , Nariz/irrigação sanguínea , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Angiografia , Doença Crônica , Comorbidade , Embolização Terapêutica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Resultado do Tratamento
12.
Eur Arch Otorhinolaryngol ; 273(1): 21-6, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25323151

RESUMO

Surgical resection followed by radiotherapy can be considered like the optimal treatment modality for limited esthesioneuroblastoma. However, therapeutic management of locally advanced tumors remains a challenge. The aim of our study was to access and compare the oncologic results of the different treatment modalities in advanced esthesioneuroblastoma. We performed a systematic review using the Medline, and Cochrane database in accordance with PRISMA criteria and included all the cases of advanced esthesioneuroblastoma published between 2000 and 2013. We also retrospectively included 15 patients with an advanced esthesioneuroblastoma managed at our tertiary care medical center. Long-term survival rates defined as the time from diagnosis or randomization to the date of death or last follow-up were evaluated for each treatment with Kaplan-Meier survival curve analyses. 283 patients have been included. The mean follow-up was 78 months. Five-year highest survival rates were obtained in patients treated by surgery associated with radiotherapy. Ten-year highest survival rates were obtained in patients treated by the association of surgery, radiotherapy and chemotherapy (p = 0.0008). Within the surgical group, 5-year highest survival rates were obtained in patients treated by endoscopic resection (p = 0.003). Surgical resection combined with radiotherapy offers the gold standard of care. Adjuvant chemotherapy seems to improve the long-term survival in patients with locally advanced esthesioneuroblastoma. Endoscopic resection in advanced tumors should be discussed on a case-by-case basis.


Assuntos
Estesioneuroblastoma Olfatório/mortalidade , Estesioneuroblastoma Olfatório/terapia , Neoplasias Nasais/mortalidade , Neoplasias Nasais/terapia , Quimioterapia Adjuvante , Endoscopia , Humanos , Estimativa de Kaplan-Meier , Radioterapia Adjuvante
13.
Surg Radiol Anat ; 38(1): 71-8, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26239897

RESUMO

PURPOSE: Cone-beam computed tomography (CBCT) is an imaging technique, first developed for use during oral and pre-implant surgery. In sinonasal surgery, CBCT might represent a valuable tool for anatomical research given its high spatial resolution and low irradiation dose. However, clinical and anatomical evidence pertaining to its efficacy is lacking. This study assessed the morphological concordance between CBCT and multislice detector computed tomography (MDCT) in the context of sinonasal anatomy. METHODS: We performed an anatomical study using 15 fresh cadaver heads. Each head underwent both CBCT and MDCT. Two independent reviewers evaluated 26 notable anatomical landmarks. The primary outcome was the overall morphological concordance between the two imaging techniques. Secondary objectives included assessment of inter-rater agreement and comparison of the radiation doses received by different parts of the anatomy. RESULTS: Overall morphological concordance between the two imaging techniques was excellent (>98 %); the inter-rater agreement for CBCT was approximately 97 %, which is highly similar to MDCT, but achieved using a significantly decreased irradiation dose. CONCLUSION: Our preliminary study indicates that CBCT represents a valid, reproducible, and safe technique for the identification of relevant sinonasal anatomical structures. Further research, particularly in pathological contexts, is required.


Assuntos
Tomografia Computadorizada de Feixe Cônico , Tomografia Computadorizada Multidetectores , Seios Paranasais/diagnóstico por imagem , Humanos
14.
Radiologia ; 58(2): 129-35, 2016.
Artigo em Espanhol | MEDLINE | ID: mdl-26494491

RESUMO

OBJECTIVE: To analyze the usefulness of diffusion magnetic resonance (MR) sequences before and after prostatic artery embolization (PAE) in patients with benign prostatic hyperplasia (BPH). MATERIAL AND METHODS: We analyzed MR studies done before (7-10 days) and after (30 days) PAE in 19 patients with BPH treated with PAE between June 2012 and December 2013. We used 1.5 Tesla scanners with body surface coils. In pre-PAE MR studies, we recorded mean b40 values and minimum (min) and maximum (max) apparent diffusion coefficient (ADC) values. In post-PAE MR studies, we recorded b40, b400, and b1000 values and min, mean, and max ADC values. We compared diffusion behavior/ADC before and after PAE and areas without ischemia. We correlated these with decreased prostatic volume (PV). RESULTS: We identified ischemia with contrast in 8 (42.1%) patients. No significant difference was found in mean b40 (p= 0.1650) or in the b40 ratio (p= 0.8868) between patients with ischemia and those without before PAE. Min b40, b40 ratio, and min ADC values differed significantly between ischemic areas and nonischemic areas within patients [p= 0.048 (b40min and ratio) and p= 0.002 (min ADC)]. No significant correlation was found between the percentage decrease in PV and mean b40 (p= 0.8490) or b40 ratio (p=0.8573). CONCLUSION: Post-PAE ischemia generates objective changes in diffusion and ADC values that enable ischemic sectors to be differentiated from nonischemic sectors. Future studies should analyze whether it is possible to subjectively differentiate between these areas through the visualization of nonischemic sectors and the feasibility of replacing them with contrast to detect ischemia.


Assuntos
Imagem de Difusão por Ressonância Magnética , Isquemia/diagnóstico por imagem , Hiperplasia Prostática/diagnóstico por imagem , Embolização Terapêutica , Humanos , Masculino
15.
Appetite ; 84: 61-7, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25240637

RESUMO

Snacking has become more frequent among US preschool-aged children in recent decades and represents a significant proportion of daily energy intake. Social influences on snacking among children, however, are not well understood. This qualitative research described low-income, urban mothers' perceptions of feeding snacks to their preschool-aged children using data from 7 focus groups with 32 participants. Focus group transcripts were analyzed using a constant comparative method to identify themes. Mothers described snacks as involving less preparation, balance, and sustenance than meals (Theme 1). Mothers also made reference to some snacks as not being "real food" (Theme 2). At the same time, snacks had significant hedonic value as reflected in mothers' enjoyment of those foods (Theme 3), the effectiveness of snacks to manage children's behavior (Theme 4), and the variety of restrictions that mothers placed on children's access to snacks, such as locking cabinets, offering small servings, and reducing the number of snacks in sight (Theme 5). Two overarching themes highlighted distinctions mothers made in feeding children snacks vs. meals as well as the powerful hedonic appeal of snacks for both mother and child. These observations suggest that low-income, urban mothers of preschool-aged children may perceive snacks as serving a more important role in managing children's behavior than in providing nutrition. Child feeding interventions should address non-food related ways of managing children's behavior as well as encouraging caregivers to see snacks as structured opportunities for nutrition and connecting with their children.


Assuntos
Atitude , Dieta , Comportamento Alimentar , Relações Mãe-Filho , Mães , Pobreza , Lanches , Adulto , Criança , Educação Infantil , Pré-Escolar , Ingestão de Energia , Feminino , Grupos Focais , Preferências Alimentares , Humanos , Renda , Refeições , Obesidade/etiologia , Poder Familiar , Percepção , Pesquisa Qualitativa , Estados Unidos , População Urbana , Adulto Jovem
16.
J Helminthol ; 89(3): 345-51, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-24685015

RESUMO

The composition and diversity of parasite communities and intestinal components, as well as infra-community structure, were assessed in eels Anguilla anguilla, from Mar Menor, a permanent Mediterranean hypersaline coastal lagoon. Data were used to determine whether this helminth community differs in composition and structure from that of eels in lagoons with lower salinity regimes and higher freshwater inputs. A total prevalence of 93% was detected. Specifically, parasites were identified as Deropristis inflata, Bucephalus anguillae, Contracaecum sp., Anguillicoloides crassus and two plerocercoid larvae belonging to the order Proteocephalidae, the marine species representing 91% of the isolated helminths. In the total community, digenetic trematodes were the dominant group of helminths, and D. inflata, an eel specialist, dominated both the component community and the infra-community. Richness and diversity were low but similar to those reported in other saline lagoons, and maximum species per eel did not exceed four. At the infra-community level, higher abundance than in other brackish or marine Mediterranean environments was detected. The findings provide further evidence of the similarity in composition and structure of helminth communities in eels from various Mediterranean coastal lagoons. Moreover, salinity-dependent specificities are well supported and reflect the life history of individual eels.


Assuntos
Organismos Aquáticos/parasitologia , Biodiversidade , Enguias/parasitologia , Doenças dos Peixes/parasitologia , Helmintíase Animal/parasitologia , Helmintos/classificação , Helmintos/isolamento & purificação , Animais , Mar Mediterrâneo , Espanha
17.
Epidemiol Infect ; 142(7): 1533-40, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24040768

RESUMO

Although co-infection by multiple groups of pathogens is the norm rather than the exception in nature, most research on the effects of pathogens on their hosts has been largely based on a single or few pathogen species. Nevertheless, the health impact of co-occurring infections is evident, and it is important that scientists should consider pathogen communities rather than single relevant pathogen species when assessing the impact of multiple infections. In this work we illustrate the consequences of neglecting different pathogen taxa (viruses, protozoa, helminths, arthropods) in the explanatory power of a set of Partial Least Squares Regression (PLS-R) models used for exploring the impact of co-infections on the body condition of 57 adult feral cats; 71·5% cats were co-infected by ≥3 groups of pathogens. The best two PLS-R models provided a first component based on the combination of helminths, protozoa and viruses, explaining 29·15% of body-condition variability. Statistical models, partially considering the pathogen community, lost between 24% and 94% of their explanatory power for explaining the cost of multiple infections. We believe that in the future, researchers assessing the impact of diseases on host life-history traits should take into account a broad representation of the pathogen community, especially during early assessment of the impact of diseases on host health.


Assuntos
Animais Selvagens/parasitologia , Doenças do Gato/parasitologia , Coinfecção/veterinária , Modelos Biológicos , Modelos Estatísticos , Doenças Parasitárias em Animais/parasitologia , Animais , Doenças do Gato/epidemiologia , Gatos , Coinfecção/epidemiologia , Coinfecção/parasitologia , Análise dos Mínimos Quadrados , Doenças Parasitárias em Animais/epidemiologia
18.
Epidemiol Infect ; 142(3): 530-9, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23725592

RESUMO

Although post-weaning mortality (PWM) in pig farming is mainly due to the effect of pathogens, farm type or swine management are also directly or indirectly involved. In this work, we used null models and the partial least squares approach (PLS) to structural equation modelling, also known as PLS path modelling (PLS-PM), to explore whether farm type, swine management and pathogens, including porcine circovirus type 2, swine influenza virus, porcine reproductive and respiratory syndrome virus and Aujeszky's disease virus, directly or indirectly influenced PWM in 42 Spanish indoor pig farms. The null model analysis revealed that contact with multiple combinations of viruses could occur by chance. On the other hand, PLS-PM showed that farm characteristics do not influence virus infections, and thus neither farm type nor associated management practices shaped PWM due to pathogens. Accordingly, preventive programmes aimed at controlling PWM in intensive farming should prioritize the control of major pig pathogens.


Assuntos
Criação de Animais Domésticos , Doenças dos Suínos/mortalidade , Doenças dos Suínos/virologia , Viroses/mortalidade , Viroses/veterinária , Desmame , Algoritmos , Animais , Ensaio de Imunoadsorção Enzimática , Análise dos Mínimos Quadrados , Fatores de Risco , Espanha , Suínos , Doenças dos Suínos/prevenção & controle , Viroses/prevenção & controle
19.
Parasitology ; 141(4): 511-21, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24476922

RESUMO

Non-random assemblages have been described as a common pattern of flea co-occurrence across mainland host species. However, to date, patterns of flea co-occurrence on islands are unknown. The present work investigates, on one hand, whether the decrease in the number of species on islands affects the pattern of flea co-occurrence, and on the other hand, how the cost of higher flea burdens affects host body mass. The study was carried out in the Canary Islands (Spain) using null models to analyse flea co-occurrence on Rattus rattus and Mus musculus. Results supported aggregation of flea species in Mus but not in Rattus, probably due to the relationship between abundance and both prevalence and intensity of infection of the main flea species parasitizing Mus. In addition, heavy individuals of both rodent species showed the highest flea burdens as well as higher species richness, probably due to the continued accumulation of fleas throughout life and/or immunological resistance mechanisms. Whatever the mechanisms involved, it is clear that co-occurrence and high parasite intensities do not imply a detrimental biological cost for the rodents of the Canary Islands.


Assuntos
Infestações por Pulgas/veterinária , Interações Hospedeiro-Parasita , Doenças dos Roedores/epidemiologia , Sifonápteros/classificação , Animais , Peso Corporal , Coinfecção/veterinária , Infestações por Pulgas/epidemiologia , Infestações por Pulgas/parasitologia , Geografia , Especificidade de Hospedeiro , Camundongos , Modelos Biológicos , Densidade Demográfica , Prevalência , Ratos , Doenças dos Roedores/parasitologia , Roedores , Espanha/epidemiologia
20.
Plant Dis ; 98(5): 682, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-30708566

RESUMO

The state of Michoacán is the most important strawberry producer in México. During January 2007, field-grown strawberry plants cv. Aromas showing vein necrosis were observed in 3 ha in Zamora County, in fruit production fields. The average disease incidence in the field was 80%. Infected plants presented water-soaked lesions limited by veins on the lower leaf surfaces, which enlarged to form angular spots (1). Additionally, most affected plants presented severe necrosis in the main veins and reddish to necrotic lesions on the upper leaf surfaces. Gram-negative bacteria were consistently isolated from leaves with water-soaked lesions. Isolated bacteria produced mucoid, yellow colonies on YDC, grew on tween and nutrient agar (NA), but not on SX media. Strains produced non-fluorescent colonies on King's B media, were positive starch hydrolysis, negative esculin hydrolysis; and produced acid from fructose but not from arabinose, galactose, celobiose, and trehalose. Growth was inhibited by 2% NaCl (3). Indirect ELISA analysis (NEOGEN, Lansing, MI) was conducted using antibodies specific for Xanthomonas fragariae. Conventional PCR assay using the primer pairs 241A/241B was performed (2). The ELISA test was positive. The expected 300- and 550-bp bands were observed in the PCR analysis. The bacteria was identified as X. fragariae Kennedy and King. Pathogenicity tests were conducted twice in a greenhouse (24 ± 4°C) on a total of five strawberry cv. Aromas plants. The main vein of each of three leaves per plant were punctured using sterile needles. Pathogen inoculum was obtained from 6- to 8-day-old NA cultures. Bacteria were applied onto the wounds with a sterile cotton swab dipped into the bacterial suspension (105 CFU/ml). Inoculated plants were covered with plastic bags for 48 h. Symptoms resembling those seen in the field developed on all inoculated plants after 9 days. X. fragariae was re-isolated from the necrotic lesions and identified by PCR. Control plants were similarly inoculated with water but did not develop symptoms. To our knowledge, this is the first report of X. fragariae causing angular leaf spot in strawberry in Michoacán, México. References: (1) J. L. Maas, ed. Compendium of Strawberry Diseases. The American Phytopathological Society, St. Paul, MN, 1998. (2) M. R. Pooler et al. Appl. Environ. Microbiol. 62:3121, 1996. (3) N. W. Schaad et al. Laboratory Guide for Identification of Plant Pathogenic Bacteria. 3rd ed. The American Phytopathological Society, St. Paul, MN, 2001.

SELEÇÃO DE REFERÊNCIAS
Detalhe da pesquisa