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1.
JDS Commun ; 5(2): 144-149, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38482126

RESUMO

The objective of this study was to assess (1) the effects of prepartum administration of anti-inflammatory therapies on type 1/type 2 immunity ratio using a rapid blood test (D2Dx immunity test; Nano Discovery Inc.), and (2) correlations between rapid blood test scores and daily milk yield in Holstein dairy cows. At 14 d before the expected calving date, cows (n = 64) and heifers (n = 23) were blocked by body condition score (optimal = 3.25-3.5; high ≥3.75) and parity (nulliparous, parous), and randomly allocated to one of 3 treatment groups (1) ASA (n = 29) = receive one oral treatment with administration of acetylsalicylic acid (4 boluses; 480 grain/bolus); (2) MEL (n = 31) = receive one oral administration with meloxicam (1 mg/kg of body weight), or (3) PLC (n = 27) = receive one oral treatment with 4 gelatin capsules filled with water. Blood samples were collected weekly starting 1 wk before treatment until 3 wk after calving for assessment of type 1/type 2 immunity ratio using a rapid blood test (i.e., D2Dx immunity test). A higher D2Dx score corresponds to a higher type 1/type 2 ratio. Furthermore, blood samples were collected within 72 h before and after calving by farm personnel. Daily milk yield for the first 60 d in milk (DIM) was collected from on-farm computer records. The data were analyzed using MIXED procedure of SAS (SAS Institute Inc.) as a randomized complete block design. On average enrolled cows received treatment administration 10 d before the actual calving date (standard deviation = 5.10 d). There was a tendency for a treatment by day interaction. Cows treated with ASA had higher type 1/type 2 ratio within 3 d after calving compared with MEL and PLC cows (ASA = 0.065 ± 0.002; MEL = 0.059 ± 0.002; PLC = 0.053 ± 0.002). Similarly, ASA and MEL cows had a higher type 1/type 2 ratio at 7 ± 3 DIM compared with PLC cows (ASA = 0.062 ± 0.002; MEL = 0.064 ± 0.002; PLC = 0.056 ± 0.002). Regardless of treatment, there was an interaction between parity and day. Parous cows had higher type 1/type 2 ratios compared with nulliparous cows at 14 ± 3 d before calving and at 7 ± 3, 14 ± 3, and 21 ± 3 d after calving. Furthermore, there was a positive correlation between D2Dx scores at 14 ± 3 DIM and average daily milk yield in the first 60 DIM. These results suggest that prepartum anti-inflammatory therapies may cause an increased shift in type 1 immunity around calving. Similarly, parous cows may have an increased shift in type 1 immunity after calving. Interestingly, higher type 1/type 2 ratios may be associated with higher milk yields in the first 60 DIM. Larger studies are needed to identify associations between the D2Dx immunity test and cow health and performance, as well as to assess the applicability of these types of tests in a conventional farm setting.

2.
Med Vet Entomol ; 37(4): 745-753, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37427707

RESUMO

The cattle tick Rhipicephalus microplus (Acari: Ixodidae) has demonstrated its ability to increase its distribution raising spatially its importance as a vector for zoonotic hemotropic pathogens. In this study, a global ecological niche model of R. microplus was built in different scenarios using Representative Concentration Pathway (RCP), Socio-Economic Pathway (SSP), and a climatic dataset to determine where the species could establish itself and thus affect the variability in the presentation of the hemotropic diseases they transmit. America, Africa and Oceania showed a higher probability for the presence of R. microplus in contrast to some countries in Europe and Asia in the ecological niche for the current period (1970-2000), but with the climate change, there was an increase in the ratio between the geographic range preserved between the RCP and SSP scenarios obtaining the greatest gain in the interplay of RCP4.5-SSP245. Our results allow to determine future changes in the distribution of the cattle tick according to the increase in environmental temperature and socio-economic development influenced by human development activities and trends; this work explores the possibility of designing integral maps between the vector and specific diseases.


Assuntos
Doenças dos Bovinos , Ixodidae , Rhipicephalus , Infestações por Carrapato , Humanos , Bovinos , Animais , Mudança Climática , Infestações por Carrapato/veterinária
3.
PLoS One ; 18(7): e0269613, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37450459

RESUMO

A gender perspective was used to analyze whether and how education, unemployment, and per capita public health expenditure were associated with perceived health among the Spanish population between the years 2014 and 2017. Using multilevel methodologies (looking at year, individual, and region) and linear and logistic specifications, we analyzed longitudinal microdata files from the Survey on Living Conditions. The results suggest that women with lower educational levels tend to report worse health than their more educated counterparts. On the other hand, women's bad health was not associated with unemployment, unlike men's. Regional per capita public health expenditure was not associated with perceived health in either men or women.


Assuntos
Gastos em Saúde , Homens , Masculino , Humanos , Feminino , Espanha , Escolaridade , Nível de Saúde
4.
BMC Public Health ; 22(1): 2314, 2022 12 10.
Artigo em Inglês | MEDLINE | ID: mdl-36496371

RESUMO

The growing frequency, intensity, and duration of extreme heat events necessitates interventions to reduce heat exposures. Local opportunities for heat adaptation may be optimally identified through collection of both quantitative exposure metrics and qualitative data on perceptions of heat. In this study, we used mixed methods to characterize heat exposure among urban residents in the area of Boston, Massachusetts, US, in summer 2020. Repeated interviews of N = 24 study participants ascertained heat vulnerability and adaptation strategies. Participants also used low-cost sensors to collect temperature, location, sleep, and physical activity data. We saw significant differences across temperature metrics: median personal temperature exposures were 3.9 °C higher than median ambient weather station temperatures. Existing air conditioning (AC) units did not adequately control indoor temperatures to desired thermostat levels: even with AC use, indoor maximum temperatures increased by 0.24 °C per °C of maximum outdoor temperature. Sleep duration was not associated with indoor or outdoor temperature. On warmer days, we observed a range of changes in time-at-home, expected given our small study size. Interview results further indicated opportunities for heat adaptation interventions including AC upgrades, hydration education campaigns, and amelioration of energy costs during high heat periods. Our mixed methods design informs heat adaptation interventions tailored to the challenges faced by residents in the study area. The strength of our community-academic partnership was a large part of the success of the mixed methods approach.


Assuntos
Temperatura Alta , Termotolerância , Humanos , Ar Condicionado , Sono , Exercício Físico
5.
Enferm Intensiva (Engl Ed) ; 33(4): 185-196, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36372732

RESUMO

INTRODUCTION: Current healthcare settings and ICUs especially are complex, highly technical, and multidisciplinary, with interactions between healthcare professionals and users, in which there may be errors at different levels. Our objective was to assess the perception of patient safety in our unit at the end of the third wave of the COVID pandemic, with the intention of conducting subsequent improvement actions. METHODS: Observational, cross-sectional, and descriptive study. The perception of Safety Culture was estimated using the HSOPS questionnaire translated into Spanish. Some questions were posed in a positive sense, and others in a negative sense. The response was also rated as positive, negative, or neutral. Our findings were compared visually, not mathematically, with those found in the previous national study «Analysis of the culture on patient safety in the hospital setting of the Spanish National Health System¼ published in 2009. A subgroup analysis was performed according to professional group and seniority as a health worker. The Student's t, χ2 and ANOVA tests were used. RESULTS: Sixty-two professionals responded to the questionnaire, 73.90% of the total. The median time working in ICU 2 years (interquartile range 2-4.5 years). The rating for the degree of safety was 8.06 (SD 1.16). The majority (91.20%) had not reported any adverse event in the last year. A total of 30.90% had recently received patient safety training. The dimensions considered as weaknesses were 9 ("Staffing", with 27.57% of positive responses) and 10 ("Support of the hospital management in safety", with 17.64% of positive responses). The dimensions considered as strengths were 3 ("Expectation of actions by management/supervision of the service") with 85.29% of positive responses, and 5 ("Teamwork") with 95.58% of positive responses. The Cronbach's alpha index values suggest that the questionnaire has adequate internal consistency. In general, our data are more positive than those collected in the 2011 national survey, although the 2 dimensions considered weaknesses were already considered such in the previous work. CONCLUSIONS: The perception of patient safety in the ICU of our hospital after the end of the third wave of the COVID pandemic is adequate, with a more positive rating than that of the national study on safety culture at the hospital level carried out in 2009. The constant quest for patient safety should prioritize activity in the 2 dimensions considered weaknesses: staffing, and support from hospital management in everything related to patient safety.


Assuntos
COVID-19 , Segurança do Paciente , Humanos , Estudos Transversais , Gestão da Segurança , Hospitais
6.
Eur J Cancer Care (Engl) ; 31(6): e13730, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36226900

RESUMO

OBJECTIVE: The objective of this work is to identify unmet information needs of long-term-survivors of breast cancer (BC) and future research needs from the perspectives of patients and health care professionals. METHODS: Two online Delphi surveys were conducted. Participants in Survey 1 were patients. Participants in Survey 2 were health care professionals from both primary and secondary care involved in BC care. Both surveys included three successive rounds. The first round aimed to identify research and information needs; the second round aimed to rank the relative importance of those needs; the third round aimed to find consensus. RESULTS: The most important information needs were self-management recommendations of common health problems after treatment and complications of breast reconstruction after 5 years. The most important research priorities were related to interventions and tools to increase information provision by professionals about certain tests, diet, and coordinated action between primary and specialised care during follow-up, and indications and safety issues of pregnancy in survivors. CONCLUSIONS: Two fundamental ideas were identified: (1) Patients request information about self-management common health problems after treatment and breast reconstruction complications. (2) Health care professionals emphasise the need for a standardised approach based on protocols, recommendations, and coordinated actions in the provision of information. IMPLICATIONS FOR CANCER SURVIVORS: Given the increasing number of BC survivors, it is essential to identify information and research needs to improve their care and health outcomes.


Assuntos
Neoplasias da Mama , Gravidez , Feminino , Humanos , Neoplasias da Mama/terapia , Neoplasias da Mama/complicações , Sobrevivência , Sobreviventes , Pessoal de Saúde , Inquéritos e Questionários , Pesquisa
7.
Aquaculture ; 553: 738127, 2022 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-36267956

RESUMO

From the beginning of March 2020 and for the following two and half months, many European countries comprising Italy have been forced into an unprecedented lockdown, allowing only the opening of essential economic activities needed to address the problems created by the pandemic (e.g. sanitary, food provision). Like many sectors of the Italian economy, aquaculture has also slowed down due to the ongoing emergency and the consequent closure of business. In our study we provided a 'snapshot' of the socio-economic effects of the lockdown on the aquaculture sector in Italy, immediately following the adoption of the COVID-19 restrictions as they were perceived by the workers. Although it was surveyed for a short-time period, differences in perception have been detected both in relation to the type of aquaculture as well as to the geographic locations where farms were placed, partially reflecting the economic gaps already existing within the northern and the southern part of the country before the lockdown.

8.
Enferm Intensiva ; 33(4): 185-196, 2022.
Artigo em Espanhol | MEDLINE | ID: mdl-34898979

RESUMO

Introduction: Current healthcare settings and ICUs especially are complex, highly technical, and multidisciplinary, with interactions between healthcare professionals and users, in which there may be errors at different levels. Our objective was to assess the perception of patient safety in our unit at the end of the third wave of the COVID pandemic, with the intention of conducting subsequent improvement actions. Methods: Observational, cross-sectional, and descriptive study. The perception of Safety Culture was estimated using the HSOPS questionnaire translated into Spanish. Some questions were posed in a positive sense, and others in a negative sense. The response was also rated as positive, negative, or neutral. Our findings were compared visually, not mathematically, with those found in the previous national study «Analysis of the culture on patient safety in the hospital setting of the Spanish National Health System¼ published in 2009. A subgroup analysis was performed according to professional group and seniority as a health worker. The Student's t, χ? and ANOVA tests were used. Results: Sixty-two professionals responded to the questionnaire, 73.90% of the total. The median time working in ICU 2 years (interquartile range 2-4.5 years). The rating for the degree of safety was 8.06 (SD 1.16). The majority (91.20%) had not reported any adverse event in the last year. A total of 30.90% had recently received patient safety training. The dimensions considered as weaknesses were 9 («Staffing¼, with 27.57% of positive responses) and 10 ("Support of the hospital management in safety", with 17.64% of positive responses). The dimensions considered as strengths were 3 («Expectation of actions by management / supervision of the service¼) with 85.29% of positive responses, and 5 («Teamwork¼) with 95.58% of positive responses. The Cronbach's alpha index values suggest that the questionnaire has adequate internal consistency. In general, our data are more positive than those collected in the 2011 national survey, although the 2 dimensions considered weaknesses were already considered such in the previous work. Conclusions: The perception of patient safety in the ICU of our hospital after the end of the third wave of the COVID pandemic is adequate, with a more positive rating than that of the national study on safety culture at the hospital level carried out in 2009. The constant quest for patient safety should prioritize activity in the 2 dimensions considered weaknesses: staffing, and support from hospital management in everything related to patient safety.

9.
ESMO Open ; 6(3): 100148, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33989988

RESUMO

BACKGROUND: Cancer is the second leading cause of mortality worldwide. Integrating different levels of care by implementing screening programmes, extending diagnostic tools and applying therapeutic advances may increase survival. We implemented a cancer fast-track programme (CFP) to shorten the time between suspected cancer symptoms, diagnosis and therapy initiation. PATIENTS AND METHODS: Descriptive data were collected from the 10 years since the CFP was implemented (2009-2019) at the Clinico-Malvarrosa Health Department in Valencia, Spain. General practitioners (GPs), an oncology coordinator and 11 specialists designed guidelines for GP patient referral to the CFP, including criteria for breast, digestive, gynaecological, lung, urological, dermatological, head and neck, and soft tissue cancers. Patients with enlarged lymph nodes and constitutional symptoms were also considered. On identifying patients with suspected cancer, GPs sent a case proposal to the oncology coordinator. If criteria were met, an appointment was quickly made with the patient. We analysed the timeline of each stage of the process. RESULTS: A total of 4493 suspected cancer cases were submitted to the CFP, of whom 4019 were seen by the corresponding specialist. Cancer was confirmed in 1098 (27.3%) patients: breast cancer in 33%, urological cancers in 22%, gastrointestinal cancer in 19% and lung cancer in 15%. The median time from submission to cancer testing was 11 days, and diagnosis was reached in a median of 19 days. Treatment was started at a median of 34 days from diagnosis. CONCLUSIONS: The findings of this study show that the interval from GP patient referral to specialist testing, cancer diagnosis and start of therapy can be reduced. Implementation of the CFP enabled most patients to begin curative intended treatment, and required only minimal resources in our setting.


Assuntos
Clínicos Gerais , Neoplasias Pulmonares , Humanos , Oncologia , Atenção Primária à Saúde , Encaminhamento e Consulta
10.
Front Psychol ; 12: 588017, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33897519

RESUMO

Previous research has focused on the relation between social class and prosocial behavior. However, this relation is yet unclear. In this work, we shed light on this issue by considering the effect of the level of empathy and the social class of the recipient of help on two types of prosociality, namely helping and caring. In one experimental study, we found that for high-class participants, empathy had a positive effect on helping, regardless of the recipient's social class. However, empathy had no effect for low-class participants. When it comes to caring, empathy had a positive effect for both high and low-class participants, but only when the recipient of help belonged to the same social class. This highlights that empathy by itself is not sufficient to promote cooperative relations and that the social class of the recipient of help should be taken into account to shed light on this issue.

12.
Int J Environ Health Res ; 31(3): 237-247, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31389252

RESUMO

To examine the prevalence of active commuting to school (ACS) in 4 to 6 year old children and individual and social factors associated with it. Cross-sectional study including 1,159 children from Cuenca and Ciudad Real (Castilla-La Mancha, Spain). ACS, population area, and socioeconomic status (SES) were self-reported by parents. Body mass index and cardiorespiratory fitness (CRF) were measured using standard procedures. Binary logistic regression models were used to assess the strength of association between the mode of commuting (ACS/no-ACS) and individual (weight status and CRF) and social (population area and SES) factors. Forty-six percent of the children ACS. The probability of ACS was greater in boys and girls from families of low/medium-low SES and in girls who lived in urban areas. ACS was not associated with weight status and CRF. Effective interventions need to be promoted, especially in children from families of high SES and those living in rural areas.


Assuntos
Individualidade , Instituições Acadêmicas , Fatores Sociais , Meios de Transporte/estatística & dados numéricos , Peso Corporal , Aptidão Cardiorrespiratória , Criança , Pré-Escolar , Estudos Transversais , Feminino , Humanos , Masculino , Classe Social , Espanha
14.
Am J Community Psychol ; 67(3-4): 456-469, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33125168

RESUMO

Community participation can be considered a pillar for the promotion of social justice and well-being for immigrants in new countries. Participation may be influenced by different forms of oppression which decrease opportunities for immigrants to be engaged. The present study explores the difficulties that Peruvian immigrants encountered and still encountering to participate in Santiago de Chile through in-depth qualitative interviews. Eighteen semi-structured interviews were conducted with Peruvian leaders of Ethnic Community Based Organizations (ECBOs) in Santiago de Chile. Interviews focused on the community engagement of Peruvians highlighting the difficulties they encountered when deciding whether to engage and throughout the process of carrying out their commitment, along with their perceptions when trying to engage their compatriots. The present study contributes to the literature in three aspects. First, it focused on the phenomenon of South-South migration. Secondly, it delved into the psychological and structural barriers that immigrants' experience, considering their disadvantaged conditions. Thirdly, it used Situational Analysis, along with the constructionist drift of Grounded Theory, which is widely used in critical, qualitative research, and is sensitive to producing situated knowledge. Coding and mapping analysis identified experiences related to historical trauma, transnational bonds, and dominant master narratives in both countries as well as challenges due to balancing time and priorities, surviving institutional deterrents, and inter-organizations competitiveness. Finally, transnational commitments, mechanisms of social disconnection, and under valuated rights that Peruvians may live in Chile were pointed out. These results intend to have practical implications for immigrants and for community psychologists.


Assuntos
Emigrantes e Imigrantes , Chile , Hispânico ou Latino , Humanos , Peru , Pesquisa Qualitativa
15.
J Med Vasc ; 45(6): 326-333, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33248535

RESUMO

AIMS: To evaluate the implementation of the European Society of Cardiology (ESC) guidelines concerning the diagnostic management of deep vein thrombosis (DVT) in emergency departments (ED); and to estimate the additional financial cost and the increase in the time spent in the ED if the guidelines are not followed. PATIENTS AND METHODS: Retrospective, bi-centric study including all patients directly admitted or referred to the ED for a suspected isolated DVT, between April 1, 2019, and July 30, 2019. The diagnostic management was compared to the 2017 ESC's guidelines. RESULTS: 107 patients were included, 13 had DVT (12%) and three had superficial venous thrombosis (3%). A total of 26 patients (24%) had a diagnostic management according to guidelines. In 72 patients (67%), no assessment of clinical probability score was found. Among the 35 patients in whom a clinical probability score was calculated, 5 patients had an unnecessary D-dimer assay and 2 patients had unjustified imaging. The median time spent in the ED was 185minutes when the recommendations were followed, and 250minutes when they were not (P=0.317). The total estimated additional cost was €232.20. CONCLUSION: The rate of adherence to the guidelines is low, mainly due to the absence of calculation of a clinical probability. This leads, in addition to the risk of diagnostic error, to an increase in the time spent in the EDs and inappropriate use of the technical platform, resulting in additional costs of care.


Assuntos
Serviço Hospitalar de Emergência/normas , Fidelidade a Diretrizes/normas , Guias de Prática Clínica como Assunto/normas , Padrões de Prática Médica/normas , Trombose Venosa/terapia , Idoso , Redução de Custos , Análise Custo-Benefício , Serviço Hospitalar de Emergência/economia , Feminino , França , Custos Hospitalares , Humanos , Masculino , Pessoa de Meia-Idade , Padrões de Prática Médica/economia , Estudos Retrospectivos , Fatores de Tempo , Resultado do Tratamento , Procedimentos Desnecessários/economia , Trombose Venosa/diagnóstico , Trombose Venosa/economia
16.
An Sist Sanit Navar ; 43(2): 151-157, 2020 Aug 31.
Artigo em Espanhol | MEDLINE | ID: mdl-32814923

RESUMO

BACKGROUND: Evaluate whether the implementation of an adnexal masses protocol, based on the GI-RADS system, allows a correct management of these masses, avoiding unnecessary clinical activity produced by overdiagnosis and overtreatment, as well as cost savings. METHODS: Retrospective cohort study (July 2015 - June 2017) including women treated at the Gynaecology clinic of the Hospital Universitario Rey Juan Carlos (Móstoles, Madrid), with detection of an adnexal mass in high resolution echography. Adnexal masses were classified by the GI-RADS system, and together with the echographic image and menopausal status, surgery or follow-up was decided. RESULTS: A total of 154 women were studied, 24?% with images suggesting malignancy (G4 and G5). Surgery was performed on 33.1?% of adnexal masses; 33.3?% of them were ovarian carcinoma, mainly (88.2?%) in postmenopausal women with echographic images suggesting malignancy. Three point two percent of patients rejected the recommended surgery. During follow-up 21.4?% of the masses disappeared, 61 patients were only monitored due to a stable mass and two (1.3?%) due to surgical risk. Eventually, 96 (62.3?%) surgeries were avoided, achieving a 57,683 Euro saving. CONCLUSIONS: The application of a protocol based on the GI-RADS classification system avoided unnecessary surgeries, as well as the consequences and economical cost produced by them. Thus, this protocol is a useful and practical tool for the monitoring and treatment of adnexal masses.


Assuntos
Doenças dos Anexos , Neoplasias Ovarianas , Feminino , Humanos , Estudos Retrospectivos , Ultrassonografia
17.
An Sist Sanit Navar ; 43(1): 69-80, 2020 Apr 20.
Artigo em Espanhol | MEDLINE | ID: mdl-32176217

RESUMO

BACKGROUND: Dying at home is the most frequent preference, with the institutionalized context being the most common place of death. To determine the place of death in conditions requiring palliative care of residents in Spain aged 15 or over by Autonomous Community (AC) and to examine the relationship with oncological vs. non-oncological causes of death. METHODS: Population-based cross-sectional study analysing medical death certificates. Adjusted effects of socio-demographic variables, AC and causes on the place of death were estimated calculating odds of death in hospital vs. at home (O-H/H) and in a nursing home vs. at home (O-N/H), and odds ratio (OR-H/H and OR-N/H) by multinomial logistic regression models. RESULTS: During 2012-2015, 1,611,767 deaths were recorded, 64.8% corresponding to the target population. Death in hospital was 77% more frequent than death at home, while death in a nursing home was 53% lower. Male sex, lower age, lower academic level, place of birth other than Spain, bigger city size and civil status other than married displayed a relationship with death in hospital, while the same variables except female sex and higher age did so in a nursing home. Adjusted O-H/H higher than 1 and O-N/H lower than 1 were observed in all AC, except Catalonia. Oncological causes made O-H/H lower than 1 in almost 50% of AC, while O-N/H continue to be lower than 1. CONCLUSIONS: Most deaths were in hospital and fewer at nursing homes, despite oncological causes increasing deaths at home (adjusted effect).


Assuntos
Mortalidade , Casas de Saúde/estatística & dados numéricos , Cuidados Paliativos/estatística & dados numéricos , Características de Residência/estatística & dados numéricos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Causas de Morte , Estudos Transversais , Demografia/estatística & dados numéricos , Escolaridade , Feminino , Mortalidade Hospitalar , Humanos , Modelos Logísticos , Masculino , Estado Civil , Pessoa de Meia-Idade , Razão de Chances , Preferência do Paciente , Fatores Sexuais , Espanha/epidemiologia , Adulto Jovem
18.
Phys Rev E ; 102(6-1): 062125, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33466070

RESUMO

Algorithms to determine transition probabilities in Monte Carlo simulations are tested using a system of classical particles with effective interactions which reproduce Bose-Einstein statistics. The system is appropriate for testing different Monte Carlo simulation methods in out-of-equilibrium situations since nonequivalent results are produced. We compare mobility numerical results obtained with transition probabilities derived from Glauber and Metropolis algorithms. Then, we compare these with a recent method, the interpolation algorithm, appropriate for nonequilibrium systems in homogeneous substrata and without phase transitions. The results of mobility obtained from the interpolation algorithm are qualitatively verified with molecular dynamics simulations for low concentrations.

19.
FAVE, Secc. Cienc. vet. (En línea) ; 18(2): 68-73, dic. 2019. ilus, tab
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1090386

RESUMO

La leptospirosis bovina es una importante enfermedad zoonótica cuyo diagnóstico molecular está ampliamente divulgado. Sin embargo, no existe un método único de extracción de ADN para leptospiras patógenas a partir de muestras clínicas. En este trabajo se utilizó orina bovina contaminada con cultivo de L. interrogans serovar Pomona Pomona para analizar el mejor método comparando: M1.) resina Chelex-100, M2.) papel FTA Whatman y M3.) hervido de la muestra (protocolo casero). De estas tres técnicas, la primera (M1) presentó la mayor sensibilidad al realizar la PCR de diagnóstico, detectándose hasta 2x102 leptospiras/mL. La metodología aquí planteada resultó tener buen rendimiento para la detección de leptospiras en muestras clínicas animales, aunque es necesario su validación con mayor número y diversidad de muestras.


Bovine leptospirosis is an important zoonotic disease whose molecular diagnosis is widely reported. However, there is not a unique method of extraction of DNA for pathogenic leptospires using clinical samples. In this study, bovine urine was contaminated with pure culture of L. interrogans serovar Pomona Pomona in order to compare three of them: M1.) Chelex-100 resin, M2.) FTA Whatman paper and M3.) boiling of the sample (in-house protocol), being the first one the most sensitive when used in diagnostic PCR, detecting up to 2x102 leptospiras/mL. The methodology proposed in this study turned out to have good performance for the detection of leptospires in animal clinical samples, although it should be applied to a greater number of samples and in different stages of the pathology.

20.
Curr Oncol ; 26(5): e597-e609, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31708653

RESUMO

Background: Evidence from a retrospective analysis of multiple large phase iii trials suggested that primary tumour location (ptl) in RAS wild-type metastatic colorectal cancer (wtRAS mcrc) might have predictive value with respect to response to drug therapies. Recent studies also show a potential preferential benefit for epidermal growth factor inhibitors (egfris) for left-sided tumours. In the present study, we aimed to determine the incremental cost-effectiveness ratio (icer) for the first-line use of an egfri for patients with left-sided wtRAS mcrc. Methods: We developed a state-transition model to determine the cost effectiveness of alternative treatment strategies in patients with left-sided mcrc:■ Standard of care■ Use of an egfri in first-line therapyThe cohort for the study consisted of patients diagnosed with unresectable wtRAS mcrc with an indication for chemotherapy and previously documented ptl. Model parameters were obtained from the published literature and calibration. The perspective was that of a provincial ministry of health in Canada. We used a 5-year time horizon and an annual discount rate of 1.5%. Results: Selecting patients for first-line egfri treatment based on left-sided location of their colorectal primary tumour was more effective than the standard of care, resulting in an increase in quality-adjusted life-years (qalys) of 0.226 (or 0.644 life-years gained). However, the strategy was also more expensive, costing an average of $60,639 more per patient treated. The resulting icer was $268,094 per qaly. A 35% price reduction in the cost of egfri would be needed to make this strategy cost-effective at a willingness-to-pay threshold (wtp) of $100,000 per qaly. Conclusions: Selective use of an egfri based on ptl was more cost-effective than unselected use of those agents; however, based on traditional wtp thresholds, it was still not cost-effective. While awaiting the elucidation of more precise predictive biomarkers that might improve cost-effectiveness, the price of egfris could be reduced to meet the wtp threshold.


Assuntos
Antineoplásicos/economia , Bevacizumab/economia , Produtos Biológicos/economia , Neoplasias Colorretais/economia , Inibidores de Proteínas Quinases/economia , Antineoplásicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/economia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Bevacizumab/uso terapêutico , Produtos Biológicos/uso terapêutico , Camptotecina/análogos & derivados , Camptotecina/economia , Camptotecina/uso terapêutico , Cetuximab/economia , Cetuximab/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Análise Custo-Benefício , Receptores ErbB/antagonistas & inibidores , Fluoruracila/economia , Fluoruracila/uso terapêutico , Humanos , Leucovorina/economia , Leucovorina/uso terapêutico , Compostos Organoplatínicos/economia , Compostos Organoplatínicos/uso terapêutico , Inibidores de Proteínas Quinases/uso terapêutico , Proteínas ras/genética
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