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1.
Cogn Affect Behav Neurosci ; 24(1): 143-155, 2024 02.
Artículo en Inglés | MEDLINE | ID: mdl-38267798

RESUMEN

Anxiety disorders are the most common psychopathologies among adolescents. Their diagnostic criteria include both fear and anxiety symptomatology, although according to the literature, we can find evidence for some distinction between these two emotions. The present study contribute to this distinction, exploring the effects of trait fear and trait anxiety on behavioral and neural correlates. Thirty-two participants (aged 11-16 years) performed two experimental tasks of salient target detection, including visual stimuli that were manipulated to become salient, while reaction times and EEG were recorded. Results of both tasks revealed differential effects of trait fear and trait anxiety assessed through the Fear Survey Schedule for Children-Revised and the Youth Anxiety Measure for DSM-5 on reaction times and ERP components amplitudes. Specifically, higher symptoms from Separation Anxiety Disorder increased early neural visual processing and decreased reaction times for more salient stimuli. Also, trait fear reduced later neural visual processing of salient stimuli. These findings may provide a significant contribution to guiding psychological interventions, especially with adolescents presenting higher levels of anxiety-related symptomatology.


Asunto(s)
Ansiedad , Potenciales Evocados , Niño , Adolescente , Humanos , Ansiedad/psicología , Miedo/psicología , Emociones , Trastornos de Ansiedad , Percepción Visual
2.
BMC Cancer ; 24(1): 705, 2024 Jun 08.
Artículo en Inglés | MEDLINE | ID: mdl-38849731

RESUMEN

BACKGROUND: Despite recent improvements in cancer detection and survival rates, managing cancer-related pain remains a significant challenge. Compared to neuropathic and inflammatory pain conditions, cancer pain mechanisms are poorly understood, despite pain being one of the most feared symptoms by cancer patients and significantly impairing their quality of life, daily activities, and social interactions. The objective of this work was to select a panel of biomarkers of central pain processing and modulation and assess their ability to predict chronic pain in patients with cancer using predictive artificial intelligence (AI) algorithms. METHODS: We will perform a prospective longitudinal cohort, multicentric study involving 450 patients with a recent cancer diagnosis. These patients will undergo an in-person assessment at three different time points: pretreatment, 6 months, and 12 months after the first visit. All patients will be assessed through demographic and clinical questionnaires and self-report measures, quantitative sensory testing (QST), and electroencephalography (EEG) evaluations. We will select the variables that best predict the future occurrence of pain using a comprehensive approach that includes clinical, psychosocial, and neurophysiological variables. DISCUSSION: This study aimed to provide evidence regarding the links between poor pain modulation mechanisms at precancer treatment in patients who will later develop chronic pain and to clarify the role of treatment modality (modulated by age, sex and type of cancer) on pain. As a final output, we expect to develop a predictive tool based on AI that can contribute to the anticipation of the future occurrence of pain and help in therapeutic decision making.


Asunto(s)
Dolor en Cáncer , Dolor Crónico , Humanos , Dolor Crónico/diagnóstico , Dolor Crónico/etiología , Estudios Prospectivos , Dolor en Cáncer/diagnóstico , Femenino , Masculino , Estudios Longitudinales , Neoplasias/complicaciones , Biomarcadores , Dimensión del Dolor/métodos , Calidad de Vida , Inteligencia Artificial , Electroencefalografía , Adulto , Persona de Mediana Edad
3.
Ultrasound Obstet Gynecol ; 62(3): 374-382, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37099763

RESUMEN

OBJECTIVE: To develop a core set of prenatal and neonatal outcomes for clinical studies evaluating perinatal interventions for congenital diaphragmatic hernia, using a validated consensus-building method. METHODS: An international steering group comprising 13 leading maternal-fetal medicine specialists, neonatologists, pediatric surgeons, patient representatives, researchers and methodologists guided the development of this core outcome set. Potential outcomes were collected through a systematic review of the literature and entered into a two-round online Delphi survey. A call was made for stakeholders with experience of congenital diaphragmatic hernia to review the list and score outcomes based on their perceived relevance. Outcomes that fulfilled the consensus criteria defined a priori were discussed subsequently in online breakout meetings. Results were reviewed in a consensus meeting, during which the core outcome set was defined. Finally, the definitions, measurement methods and aspirational outcomes were defined in online and in-person definition meetings by a selection of 45 stakeholders. RESULTS: Overall, 221 stakeholders participated in the Delphi survey and 198 completed both rounds. Fifty outcomes met the consensus criteria and were discussed and rescored by 78 stakeholders in the breakout meetings. During the consensus meeting, 93 stakeholders agreed eventually on eight outcomes, which constituted the core outcome set. Maternal and obstetric outcomes included maternal morbidity related to the intervention and gestational age at delivery. Fetal outcomes included intrauterine demise, interval between intervention and delivery and change in lung size in utero around the time of the intervention. Neonatal outcomes included neonatal mortality, pulmonary hypertension and use of extracorporeal membrane oxygenation. Definitions and measurement methods were formulated by 45 stakeholders, who also added three aspirational outcomes: duration of invasive ventilation, duration of oxygen supplementation and use of pulmonary vasodilators at discharge. CONCLUSIONS: We developed with relevant stakeholders a core outcome set for studies evaluating perinatal interventions in congenital diaphragmatic hernia. Its implementation should facilitate the comparison and combination of trial results, enabling future research to better guide clinical practice. © 2023 International Society of Ultrasound in Obstetrics and Gynecology.


Asunto(s)
Hernias Diafragmáticas Congénitas , Obstetricia , Embarazo , Femenino , Recién Nacido , Niño , Humanos , Hernias Diafragmáticas Congénitas/diagnóstico por imagen , Hernias Diafragmáticas Congénitas/terapia , Proyectos de Investigación , Atención Prenatal/métodos , Evaluación de Resultado en la Atención de Salud , Técnica Delphi , Resultado del Tratamiento
4.
Nature ; 546(7658): 406-410, 2017 06 15.
Artículo en Inglés | MEDLINE | ID: mdl-28538727

RESUMEN

Transmission of Zika virus (ZIKV) in the Americas was first confirmed in May 2015 in northeast Brazil. Brazil has had the highest number of reported ZIKV cases worldwide (more than 200,000 by 24 December 2016) and the most cases associated with microcephaly and other birth defects (2,366 confirmed by 31 December 2016). Since the initial detection of ZIKV in Brazil, more than 45 countries in the Americas have reported local ZIKV transmission, with 24 of these reporting severe ZIKV-associated disease. However, the origin and epidemic history of ZIKV in Brazil and the Americas remain poorly understood, despite the value of this information for interpreting observed trends in reported microcephaly. Here we address this issue by generating 54 complete or partial ZIKV genomes, mostly from Brazil, and reporting data generated by a mobile genomics laboratory that travelled across northeast Brazil in 2016. One sequence represents the earliest confirmed ZIKV infection in Brazil. Analyses of viral genomes with ecological and epidemiological data yield an estimate that ZIKV was present in northeast Brazil by February 2014 and is likely to have disseminated from there, nationally and internationally, before the first detection of ZIKV in the Americas. Estimated dates for the international spread of ZIKV from Brazil indicate the duration of pre-detection cryptic transmission in recipient regions. The role of northeast Brazil in the establishment of ZIKV in the Americas is further supported by geographic analysis of ZIKV transmission potential and by estimates of the basic reproduction number of the virus.


Asunto(s)
Infección por el Virus Zika/transmisión , Infección por el Virus Zika/virología , Virus Zika/aislamiento & purificación , Américas/epidemiología , Número Básico de Reproducción , Brasil/epidemiología , Variación Genética , Genoma Viral/genética , Humanos , Microcefalia/epidemiología , Microcefalia/virología , Epidemiología Molecular , Filogeografía , Análisis Espacio-Temporal , Virus Zika/genética , Infección por el Virus Zika/epidemiología
5.
Prev Sci ; 24(Suppl 1): 40-49, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36399222

RESUMEN

Given increasing opioid overdose mortality rates in the USA over the past 20 years, accelerating the implementation of prevention interventions found to be effective is critical. The Helping End Addiction Long-Term (HEAL) Prevention Cooperative (HPC) is a consortium of research projects funded to implement and test interventions designed to prevent the onset or escalation of opioid misuse among youth and young adults. The HPC offers a unique opportunity to synthesize and share lessons learned from participating research projects' varied implementation experiences, which can facilitate quicker integration of effective prevention interventions into practice. This protocol paper describes our hybrid approach to collecting and analyzing information about the implementation experiences of nine of the HPC research projects while they maintain their focus on assessing the effectiveness and cost-effectiveness of prevention interventions. To better understand implementation within this context, we will address five research questions: (1) What were the context and approach for implementing the prevention interventions, and how was the overall implementation experience? (2) How representative of the target population are the participants who were enrolled and retained in the research projects' effectiveness trials? (3) For what purposes and how were stakeholders engaged by the research projects? (4) What are the adaptable components of the prevention interventions? And finally, (5) how might implementation of the prevention interventions vary for non-trial implementation? This work will result in intervention-specific and general practical dissemination resources that can help potential adopters and deliverers of opioid misuse prevention make adoption decisions and prepare for successful implementation.


Asunto(s)
Conducta Adictiva , Sobredosis de Droga , Trastornos Relacionados con Opioides , Adolescente , Adulto Joven , Humanos , Sobredosis de Droga/prevención & control , Trastornos Relacionados con Opioides/prevención & control
6.
Prev Sci ; 24(Suppl 1): 30-39, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37261635

RESUMEN

Substance use disorder prevention programs are most effective when matched appropriately to the baseline risk of the population. Individuals who misuse opioids often have unique risk profiles different from those who use other substances such as alcohol or cannabis. However, most substance use prevention programs are geared toward universal audiences, neglecting key inflection points along the continuum of care. The HEAL Prevention Cooperative (HPC) is a unique cohort of research projects that represents a continuum of care, from community-level universal prevention to indicated prevention among older adolescents and young adults who are currently misusing opioids or other substances. This paper describes the theoretical basis for addressing opioid misuse and opioid use disorder across the prevention continuum, using examples from research projects in the HPC.


Asunto(s)
Cannabis , Trastornos Relacionados con Opioides , Mal Uso de Medicamentos de Venta con Receta , Adolescente , Adulto Joven , Humanos , Trastornos Relacionados con Opioides/prevención & control , Trastornos Relacionados con Opioides/tratamiento farmacológico , Trastornos Relacionados con Opioides/epidemiología , Analgésicos Opioides/uso terapéutico , Continuidad de la Atención al Paciente
7.
Climacteric ; 25(5): 523-529, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-35801642

RESUMEN

OBJECTIVE: This study aims to understand the epidemiological characteristics of Brazilian menopausal women, and their view on menopause hormone therapy (MHT). METHODS: A national cross-sectional study with 1500 women between 45 and 65 years old was carried out through questionnaires. RESULTS: The overall median age of participants was 52 [47-56] years, and 55 [52-59] years for the postmenopausal subgroup. Menstrual irregularity started at median age 46 [44-49] years. Median menopause age was 48 [45-51] years with no differences between socioeconomic classes. The prevalence of any climacteric symptoms was 87.9% and hot flashes started at median age 47 [45-50] years. Among women in menopause/menopausal transition, 52.1% received any medical prescription, and MHT was recommended for 22.3%. Among those who started MHT, 45.4% were still using the treatment and the median duration of use was 8 months, but different among socioeconomic classes (24 months for class A against 3 months for class D/E). CONCLUSIONS: In this first Brazilian national population-based study on menopause and MHT, it was observed that, in spite of being symptomatic when entering menopause around 48 years of age, only a small part of Brazilian women started MHT and the median duration of treatment was less than 1 year, but the duration was higher for higher socioeconomic class.


Asunto(s)
Sofocos , Menopausia , Anciano , Brasil/epidemiología , Estudios Transversales , Femenino , Terapia de Reemplazo de Hormonas/métodos , Sofocos/epidemiología , Humanos , Persona de Mediana Edad
8.
Zygote ; 30(2): 194-199, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-34530946

RESUMEN

The present study aimed to use an in vitro follicle culture (IVFC) biotechnique as a tool to evaluate the influence of whole flaxseed as a feed supplementation in the diet on the in vitro development of caprine early antral follicles (EAFs) and further embryo production. In total, 18 adult goats were homogeneously allocated into two diet groups: Control and Flaxseed. EAFs from both experimental groups (300-400 µm) were isolated and cultured in vitro for 18 days. After IVFC, recovered cumulus-oocyte complexes were submitted to in vitro maturation, and subsequently to IVF and in vitro embryo culture. The endpoints evaluated were follicular growth and morphology, oocyte recovery rate and diameter, sperm penetration, pronuclei formation, embryo development, and estradiol production. The addition of the whole flaxseed in the diet did not affect (P > 0.05) follicular growth and diameter. A higher (P < 0.05) percentage of oocytes ≥ 110 µm was recovered from the flaxseed treatment. However, the sperm penetration rate was higher (P < 0.05) in the control treatment when compared with the flaxseed treatment, but no differences were found regarding the rate of fertilization nor cleaved embryos. In conclusion, dietary flaxseed increased the recovery rate of fully grown oocytes, but it did negatively affect the sperm penetration rate, even though there was no further effect on the cleavage rate.


Asunto(s)
Lino , Cabras , Animales , Medios de Cultivo , Femenino , Fertilización In Vitro/veterinaria , Oocitos , Folículo Ovárico
9.
Climacteric ; 24(2): 157-163, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-32869682

RESUMEN

OBJECTIVE: A previous survey investigated postmenopausal vaginal atrophy in a sample of women across Latin America. To help implement a tailored approach to improve postmenopausal care and outcomes in Brazil, we consider results from the survey for this country. METHODS: A total of 2509 postmenopausal women resident in Argentina, Brazil, Chile, Colombia, or Mexico completed an online questionnaire. The Brazilian cohort comprised 504 women. RESULTS: Over half of the Brazilian cohort (56%) reported experiencing symptoms of vaginal atrophy; most described them as moderate or severe (76%), and almost half (48%) experienced symptoms for at least 1 year. Three-quarters of the Brazilian cohort (75%) were unaware of the chronic nature of the condition. Upon experiencing symptoms of vaginal atrophy, 92% had visited a health-care provider to discuss treatment options. Overall, 56% were aware of some form of local hormone therapy and 40% of those affected by vaginal atrophy had used such treatment. CONCLUSION: Postmenopausal women in Brazil are likely to benefit from increased awareness of the symptoms of vaginal atrophy. Health-care providers can potentially improve outcomes by helping women to understand the chronic nature of the condition and available treatment options. Women may be open to education pre menopause, before symptoms occur.


Asunto(s)
Aceptación de la Atención de Salud/psicología , Posmenopausia/psicología , Vagina/patología , Enfermedades Vaginales/psicología , Salud de la Mujer/estadística & datos numéricos , Atrofia , Brasil/epidemiología , Brasil/etnología , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , América Latina/epidemiología , América Latina/etnología , Persona de Mediana Edad , Aceptación de la Atención de Salud/etnología , Posmenopausia/etnología , Encuestas y Cuestionarios , Enfermedades Vaginales/epidemiología , Enfermedades Vaginales/etnología , Salud de la Mujer/etnología
10.
J Eur Acad Dermatol Venereol ; 35(8): 1712-1716, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-33896044

RESUMEN

BACKGROUND: Lymphogranuloma venereum (LGV) is a sexual transmitted infection (STI), currently endemic within the population of men who have sex with men (MSM) of Western Countries. L2B variant has been reported as the predominant strain in the current LGV epidemics, although a shift towards L2-434 has been observed in some European countries. OBJECTIVES: To evaluate and characterize the population with LGV infection diagnosed in Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal. METHODS: A retrospective analysis of all LGV diagnoses between 2016 and 2019 was performed. The diagnosis was established through ompA-genotyping of samples yielding a positive result to Chlamydia trachomatis (CT). All considered samples were retrieved from the clinician activity, through swabbing and urine analysis and CT infection diagnosis was obtained using real-time PCR. RESULTS: During the period studied 16 279 CT diagnostics tests were employed, with a striking increase from 2016 (n = 467) to 2019 (n = 9362). A total of 1602 diagnoses of CT were established, from which 168 (10.5%) corresponded to LGV, with both infections showing a rising evolution, between 2016 and 2019, of 2.9 and 2.7 times, respectively. The majority of the LGV strains were genotyped as L2/434 (67.3%; n = 113). LGV predominantly affected MSM and men who have sex with men and women (97.0%; n = 163). Anorectal infection was the most prevalent one (90.5%; n = 152), being proctitis the main clinical presentation (76.2%; n = 128). Absence of symptoms was reported in almost 15% of the cases (n = 24). The presence of concomitant infection with human immunodeficiency virus was dominant (73.2%; n = 123) and the prevalence of one or more STI co-infections was about 60.1% (n = 99). CONCLUSIONS: An increasing evolution of CT and LGV testing and diagnosing was observable throughout the studied period. Characteristics of the population are similar with those described within LGV epidemics. In accordance with recent European studies, predominance towards L2 genotype was identified.


Asunto(s)
Linfogranuloma Venéreo , Minorías Sexuales y de Género , Chlamydia trachomatis/genética , Europa (Continente) , Femenino , Homosexualidad Masculina , Humanos , Linfogranuloma Venéreo/diagnóstico , Linfogranuloma Venéreo/epidemiología , Masculino , Portugal , Estudios Retrospectivos
11.
BMC Fam Pract ; 22(1): 153, 2021 07 19.
Artículo en Inglés | MEDLINE | ID: mdl-34275453

RESUMEN

BACKGROUND: This qualitative study is a sub-component of BETTER WISE, a comprehensive and structured approach that proactively addresses chronic disease prevention, screening, and cancer survivorship, including screening for poverty and addressing lifestyle risks for patients aged 40 to 65. Patients (n = 527) from 13 primary care clinics (urban, rural, and remote) in Alberta, Ontario, and Newfoundland & Labrador, Canada agreed to participate in the study and were invited to a one-hour prevention visit delivered by a Prevention Practitioner (PP) as part of BETTER WISE. We identified the key components of a BETTER WISE prevention visit based on patients' and primary care providers' perspectives. METHODS: Primary care providers (PPs, physicians and their staff) participated in 14 focus groups and 19 key informant interviews to share their perspectives on the BETTER WISE project. Of 527 patients who agreed to participate in the study and were invited for a BETTER WISE prevention visit with a PP, we received 356 patient feedback forms. We also collected field notes and memos and employed thematic analysis using a constant comparative method focusing on the BETTER WISE prevention visit. RESULTS: We identified four key themes related to a BETTER WISE prevention visit: 1) Creating a safe environment and building trust with patients: PPs provided sufficient time and a safe space for patients to share what was important to them, including their concerns related to poverty, alcohol consumption, and mental health, topics that were often not shared with physicians; 2) Providing personalized health education: PPs used the BETTER WISE tools to provide patients with a personalized overview of their health status and eligible screening; 3) Non-judgmental empowering of patients: Instead of directing patients on what to do, PPs evoked patients' preferences and helped them to set goals (if desired); and 4) Integrating care for patients: PPs clarified information from patients' charts and surveys with physicians and helped patients to navigate resources within and outside of the primary care team. CONCLUSIONS: The results of this study underscore the importance of personalized, trusting, non-judgmental, and integrated relationships between primary care providers and patients to effectively address chronic disease prevention, screening, and cancer survivorship as demonstrated by the BETTER WISE prevention visits. TRIAL REGISTRATION: This qualitative study is a sub-component of the BETTER WISE pragmatic, cRCT, trial registration ISRCTN21333761 (date of registration 19/12/2016).


Asunto(s)
Tamizaje Masivo , Atención Primaria de Salud , Enfermedad Crónica , Humanos , Ontario , Investigación Cualitativa
12.
Med Oral Patol Oral Cir Bucal ; 26(3): e292-e298, 2021 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-33247570

RESUMEN

BACKGROUND: Among the oral potentially malignant disorders, leukoplakia stands out as the most prevalent. The purpose of this study was to analyse the clinical-pathological features of oral leukoplakia in groups of patients from three major pathology centers in two different regions of Brazil, in order to determine which factors would be associated to the clinical risk of malignant transformation. MATERIAL AND METHODS: A total of 148 patients was analyzed, and data regarding gender, age, site, classification of the clinical subtype, harmful habits such as use of tobacco and alcohol, time of evolution and presence of dysplasia were collected. The association between risk factors and malignant transformation was investigated using the chi-square test and Fischer's exact test for correlation of variables. A significance level of 5% (p≤0.05) was used. RESULTS: The mean age of the patients was 60 years, and 56% were female. Most of the lesions (34,5%) were located in the lateral and ventral regions of the tongue. Of the 148 patients, ninety had clinical follow-up. Malignant transformation occurred in 13 patients (8.8%), with an average of 44 months of follow up. CONCLUSIONS: Non-smoker, nonhomogeneous clinical presentation, location at the tongue, and the presence of high degree of dysplasia were statistically relevant factors associated with a higher risk of transformation transformation.


Asunto(s)
Transformación Celular Neoplásica , Leucoplasia Bucal , Brasil/epidemiología , Femenino , Humanos , Leucoplasia Bucal/epidemiología , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo
13.
Clin Radiol ; 75(12): 962.e9-962.e15, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-32928498

RESUMEN

AIM: To correlate solitary dilated ducts (SDDs) detected by mammography with ultrasound and histopathological findings of intraductal lesions and evaluate the association with invasive or in situ breast carcinoma. The secondary goal was to evaluate the prevalence of SDDs in screening and diagnostic mammography. MATERIALS AND METHODS: This prospective study of consecutive screening and diagnostic mammograms from March 2016 to March 2017 at a referral centre for the diagnosis and treatment of breast cancer was registered at clinicatrials.gov (NCT03161392). SDDs were recorded prospectively on mammography, and regardless of the findings' stability, the participants were recalled for targeted ultrasound to evaluate the intraductal content, which was submitted to histopathological analysis when heterogeneous content or masses were found. SDD stability was evaluated for 2 years. The categorical data are shown as frequency and percentage, and the comparisons were conducted using the chi-squared test. RESULTS: A total of 9,035 mammograms were evaluated. SDDs were identified in 130 (1.43%) mammograms and 94 targeted ultrasound were conducted. In 22 cases, histological analysis were performed, and the main findings were fibrocystic changes (n = 14) and papilloma (n = 8). The main clinical and imaging characteristics associated with statistical significance (p < 0.05) were the presence of nipple discharge, intraductal masses, and calcifications on mammography. CONCLUSION: SDDs visualised using mammography and without other associated findings should be complemented with targeted ultrasound to evaluate the intraductal content that shows benign histopathological results when papilloma is the most relevant finding. No cases of invasive or in situ breast carcinoma were found in this study.


Asunto(s)
Neoplasias de la Mama/diagnóstico por imagen , Carcinoma in Situ/diagnóstico por imagen , Carcinoma Ductal de Mama/diagnóstico por imagen , Mamografía , Ultrasonografía Mamaria , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/patología , Calcinosis/diagnóstico por imagen , Calcinosis/patología , Carcinoma in Situ/patología , Carcinoma Ductal de Mama/patología , Femenino , Humanos , Persona de Mediana Edad , Estudios Prospectivos
14.
J Dairy Sci ; 103(11): 10862-10866, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-32921453

RESUMEN

The aim of this study was to evaluate the potential negative effects of superovulation on subsequent fertility of dairy heifers. Holstein heifers (n = 1,783), 312 to 387 d of age, and 273 to 307 kg of body weight (BW) from 2 commercial farms were enrolled. These animals were first selected to be donors (446) or nondonors (CON, n = 1,327) according to their genomic values. Nondonor heifers (CON) were artificially inseminated (AI) according to standard procedures of each farm after reaching 320 kg of BW. Donor heifers were superovulated using a fixed FSH dose (180 mg NIH-FSH-P1; Folltropin-V, Vetoquinol Brasil, Mairiporã, SP, Brazil) and embryos were collected following standard procedures. Heifers that produced fewer than 8 viable embryos after first superovulation (SOV1, n = 337) were no longer used as donors, whereas the remaining heifers (SOV2, n = 109) were superovulated a second time within an interval of 48 to 54 d. Donor heifers (SOV1 and SOV2) were AI once they reached 320 kg of BW, at least 15 d after the last embryo collection. Data on age at first AI, at conception, and at parturition, as well as the number of services per conception, were analyzed by ANOVA, using the PROC MIXED procedure of SAS (SAS Institute Inc., Cary, NC) procedure. Binomial variables (pregnancy per AI, overall pregnancy rate, open heifers at 500 d age, and late pregnancy loss) were analyzed using the GLIMMIX procedure of SAS. The heifers selected to undergo superovulation twice (SOV2) yielded more total (12.6 ± 5.3 vs. 6.8 ± 4.6; respectively) and viable embryos (8.5 ± 3.8 vs. 3.9 ± 2.8; respectively) than those superovulated only once (SOV1). Age at first AI, conception, and at parturition was greater in SOV2, but not in SOV1 compared with nondonor controls. In addition, pregnancy per first AI, overall pregnancy rate, services per conception, open heifers at 500 d of age, and occurrence of pregnancy losses after 60 d of gestation were similar among CON, SOV1, and SOV2 heifers. In summary, a single superovulation performed before heifers reach a minimum weight for breeding did not affect age at conception, calving or other indicators of reproductive efficiency. On the other hand, heifers superovulated twice were first inseminated at a later age than their birth cohorts, but had similar reproductive performance.


Asunto(s)
Bovinos/fisiología , Fertilidad , Superovulación/efectos de los fármacos , Animales , Femenino , Hormona Folículo Estimulante/administración & dosificación , Hormona Folículo Estimulante/farmacología , Inseminación Artificial/veterinaria , Embarazo , Índice de Embarazo
15.
Mol Phylogenet Evol ; 133: 263-285, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30583043

RESUMEN

The evolutionary history of western Iberian Leuciscinae, obligatory freshwater fish, is directly linked to the evolution of the hydrographic network of the Iberian Peninsula after its isolation from the rest of Europe, which involved dramatic rearrangements such as the transition from endorheic lakes to open basins draining to the Atlantic. Previous phylogenetic research on western Iberian leuciscines, using mainly mitochondrial DNA and more recently one or two nuclear genes, has found contradictory results and there remain many unresolved issues regarding species relationships, taxonomy, and evolutionary history. Moreover, there is a lack of integration between phylogenetic and divergence time estimates and information on the timing of geomorphological changes and paleobasin rearrangements in the Iberian Peninsula. This study presents the first comprehensive fossil-calibrated multilocus coalescent species tree of western Iberian Leuciscinae (including 14 species of Achondrostoma, Iberochondrostoma, Pseudochondrostoma and Squalius endemic to the Iberian Peninsula, seven of which endemic to Portugal) based on seven nuclear genes, and from which we infer their biogeographic history by comparing divergence time estimates to known dated geological events. The phylogenetic pattern suggests slow-paced evolution of leuciscines during the Early-Middle Miocene endorheic phase of the main Iberian river basins, with the shift to exorheism in the late Neogene-Quaternary allowing westward dispersals that resulted in many cladogenetic events and a high rate of endemism in western Iberia. The results of this study also: (i) confirm the paraphyly of S. pyrenaicus with respect to S. carolitertii, and thus the possible presence of a new taxon in the Portuguese Tagus currently assigned to S. pyrenaicus; (ii) support the taxonomic separation of the Guadiana and Sado populations of S. pyrenaicus; (iii) show the need for further population sampling and taxonomic research to clarify the phylogenetic status of A. arcasii from the Minho basin and of the I. lusitanicum populations in the Sado and Tagus basins; and (iv) indicate that A. occidentale, I. olisiponensis and P. duriensis are the most ancient lineages within their respective genera.


Asunto(s)
Biodiversidad , Evolución Biológica , Cyprinidae/anatomía & histología , Sitios Genéticos , Análisis de Secuencia de ADN , Animales , Teorema de Bayes , Cyprinidae/genética , ADN Mitocondrial/genética , Variación Genética , Geografía , Filogenia , Portugal , Ríos , Especificidad de la Especie , Factores de Tiempo
16.
Ultrasound Obstet Gynecol ; 54(6): 752-758, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30640410

RESUMEN

OBJECTIVE: Fetal endoscopic tracheal occlusion (FETO) is associated with increased perinatal survival and reduced need for extracorporeal membrane oxygenation (ECMO) in fetuses with severe congenital diaphragmatic hernia (CDH). This study evaluates the impact of FETO on the resolution of pulmonary hypertension (PH) in fetuses with isolated CDH. METHODS: We reviewed retrospectively the medical records of all fetuses evaluated for CDH between January 2004 and July 2017 at a single institution. Fetuses with additional major structural or chromosomal abnormalities were excluded. CDH cases were classified retrospectively into mild, moderate and severe groups based on prenatal magnetic resonance imaging indices (observed-to-expected total fetal lung volume and percentage of intrathoracic liver herniation). Presence of PH was determined based on postnatal echocardiograms. Logistic regression analyses were performed to evaluate the relationship between FETO and resolution of PH by 1 year of age while controlling for side of the CDH, use of ECMO, gestational age at diagnosis, gestational age at delivery, fetal gender, sildenafil use at discharge and CDH severity. Resolution of PH by 1 year of age was compared between a cohort of fetuses with severe CDH that underwent FETO and a cohort that did not have the procedure (non-FETO). A subanalysis was performed restricting the analysis to isolated left CDH. Parametric and non-parametric tests were used for comparisons. RESULTS: Of 257 CDH cases evaluated, 72% (n = 184) had no major structural or chromosomal anomalies of which 58% (n = 107) met the study inclusion criteria. The FETO cohort consisted of 19 CDH cases and the non-FETO cohort (n = 88) consisted of 31 (35%) mild, 32 (36%) moderate and 25 (28%) severe CDH cases. All infants with severe CDH, regardless of whether they underwent FETO, had evidence of neonatal PH. FETO (OR, 3.57; 95% CI, 1.05-12.10; P = 0.041) and ECMO (OR, 5.01; 95% CI, 2.10-11.96; P < 0.001) were independent predictors of resolution of PH by 1 year of age. A higher proportion of infants with severe CDH that underwent FETO had resolution of PH by 1 year after birth compared with infants with severe CDH in the non-FETO cohort (69% (11/16) vs 28% (7/25); P = 0.017). Similar results were observed when the analysis was restricted to cases with left-sided CDH (PH resolution in 69% (11/16) vs 28% (5/18); P = 0.032). CONCLUSION: In infants with severe CDH, FETO and ECMO are independently associated with increased resolution of PH by 1 year of age. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.


Asunto(s)
Hernias Diafragmáticas Congénitas/complicaciones , Hernias Diafragmáticas Congénitas/cirugía , Hipertensión Pulmonar/cirugía , Tráquea/cirugía , Ecocardiografía/métodos , Endoscopía/métodos , Oxigenación por Membrana Extracorpórea/normas , Femenino , Fetoscopía/métodos , Edad Gestacional , Hernias Diafragmáticas Congénitas/clasificación , Humanos , Hipertensión Pulmonar/prevención & control , Lactante , Hígado/patología , Mediciones del Volumen Pulmonar/métodos , Imagen por Resonancia Magnética/métodos , Masculino , Atención Posnatal/normas , Embarazo , Atención Prenatal/normas , Estudios Retrospectivos , Índice de Severidad de la Enfermedad , Tráquea/diagnóstico por imagen , Tráquea/embriología , Resultado del Tratamiento
17.
Mycopathologia ; 184(3): 383-392, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-31183740

RESUMEN

Fungi of the genus Alternaria are ubiquitous indoor and outdoor airborne agents, and individuals are daily exposed to their spores. Although its importance in human infections and, particularly in respiratory allergies, there are no studies of how Alternaria spp. spores interact with host cells. Our aim was to study the early interaction of Alternaria infectoria spores with macrophages, the first line of immune defense. RAW 264.7 macrophages were infected with A. infectoria conidia, and the internalization and viability of conidia once inside the macrophages were quantified during the first 6 h of interaction. Live cell imaging was used to study the dynamics of this interaction. TNF-α production was quantified by relative gene expression, and the concentration of other cytokines (IL-1α, IL-1ß, IL-6, IL-4, IL-10, IL-17, GM-CSF and INF-γ) and a chemokine, MIP-1α, was quantified by ELISA. Conidia were rapidly internalized by macrophages, with approximately half internalized after 30 min of interaction. During the first 6 h of interaction, macrophages retained the ability to mitotically divide while containing internalized conidia. The classical macrophage-activated morphology was absent in macrophages infected with conidia, and TNF-α and other cytokines and chemokines failed to be produced. Thus, macrophages are able to efficiently phagocyte A. infectoria conidia, but, during the first 6 h, no effective antifungal response is triggered, therefore promoting the residence of these fungal conidia inside the macrophages.


Asunto(s)
Alternaria/inmunología , Macrófagos/inmunología , Macrófagos/microbiología , Fagocitosis , Esporas Fúngicas/inmunología , Alternariosis , Animales , Perfilación de la Expresión Génica , Factores Inmunológicos/biosíntesis , Ratones , Viabilidad Microbiana , Células RAW 264.7
18.
Int Wound J ; 16(6): 1513-1520, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31599117

RESUMEN

Evaluating scars is fundamental to analyse the outcome of treatments that include surgical intervention. Scales facilitate this type of assessment, but most of these measuring instruments are in different languages. The Patient and Observer Scar Assessment Scale (POSAS) is one of the most robust instruments available in the literature for the evaluation of scars, although there is no validated version in Brazilian Portuguese. The aims of this study were to culturally translate and validate POSAS for the Portuguese language of Brazil and to test its reproducibility, face validity, content, and construct. Following the methodology proposed by Beaton DE, Bombardier C, Guillemin F, Ferraz, MB, Spine 2000, 25, 3186, the questionnaire was translated and adapted to the Brazilian culture. The reproducibility, face, content, and construct validity were then analysed. In all, the scale was applied to 35 patients with postoperative scars (patient version) and 35 hand surgery specialists (version for the observer). The internal consistency was tested by Cronbach's alpha, and construct validation was performed by correlating the translated instrument with the Brazilian Portuguese translation of the Vancouver Scar Scale (VSS). The cultural adaptation of POSAS Escola Paulista de Medicina/Universidade Federal de São Paulo (EPM/UNIFESP) was confirmed. Both subscales showed strong internal consistency (Cronbach's α = 0.77-0.93), demonstrating reliability. The reproducibility was excellent, and the adapted scale demonstrated significant intra- and inter-observer reproducibility (r > 0.9) (P < 0.05). The validity of the construct was significant and showed good sensitivity between POSAS EMP/UNIFESP and the VSS. This study confirmed that POSAS EPM/UNIFESP can be used to evaluate patients with surgical scars in the Brazilian population. It has proven to be useful for clinical and research purposes, lending itself to capturing medical opinions and those of the patients themselves.


Asunto(s)
Cicatriz/complicaciones , Encuestas y Cuestionarios , Brasil , Estudios Transversales , Cultura , Humanos , Reproducibilidad de los Resultados , Traducciones
19.
Actas Dermosifiliogr ; 2024 Jun 15.
Artículo en Inglés, Español | MEDLINE | ID: mdl-38885901
20.
J Fish Dis ; 41(7): 1041-1048, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-29770449

RESUMEN

Monogeneans are ectoparasites that may cause losses in production and productivity in the aquaculture of Colossoma macropomum. Chemotherapeutics used in aquaculture usually have major adverse effects on fish; hence, the use of essential oils has been considered advantageous, but these are not soluble in water. Thus, the use of nanostructures to enhance water solubility of compounds and improve bioactivity may be very promising. This study investigated the antiparasitic activity of nanoemulsion prepared with Copaifera officinalis oleoresin (50, 100, 150, 200 and 300 mg/L), against monogenean parasites from the gills of C. macropomum. The particle size distribution and zeta potential suggested that a potentially kinetic stable system was generated. The nanoemulsion from C. officinalis oleoresin achieved high efficacy (100%) at low concentrations (200 and 300 mg/L) after 15 min of exposure. This was the first time that a nanoemulsion was generated from C. officinalis oleoresin using a solvent-free, non-heating and low-energy method. Moreover, this was the first time that an antiparasitic against monogeneans on fish gills, based on nanoemulsion of C. officinalis oleoresin, was tested.


Asunto(s)
Antiparasitarios/farmacología , Characiformes , Fabaceae/química , Extractos Vegetales/farmacología , Trematodos/efectos de los fármacos , Infecciones por Trematodos/veterinaria , Animales , Relación Dosis-Respuesta a Droga , Emulsiones , Enfermedades de los Peces/tratamiento farmacológico , Enfermedades de los Peces/parasitología , Nanoestructuras/análisis , Infecciones por Trematodos/tratamiento farmacológico , Infecciones por Trematodos/parasitología
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