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1.
Proc Natl Acad Sci U S A ; 120(24): e2300189120, 2023 06 13.
Artículo en Inglés | MEDLINE | ID: mdl-37285393

RESUMEN

Using millions of observations compiled from the public administrative data of Taiwan, we find a surprising gender inequity in terms of real estate: Men own more land than women, and the annual rate of return (ROR) of men's land outperform women's by almost 1% per year. The latter finding of gender-based ROR difference is in sharp contrast to prior evidence that women outperform men in security investment, and also suggests a quantity-and-quality double jeopardy in female land ownership which, given the heavy weight of real estate in individual wealth, has important implications for wealth inequality among men and women. Our statistical analyses suggest that such a gender-based difference in land ROR cannot be attributed to individual-level factors such as liquidity preferences, risk attitudes, investment experience, and behavioral biases, as described in the literature. Rather, we hypothesize parental gender bias-a phenomenon that is still prevalent today-to be the key macrolevel factor. To test our hypothesis, we partition our observations into two groups: an experimental group in which parents can exercise gender discretion, and a control group in which parents cannot exercise such discretion. Our empirical evidence shows that the gender difference with respect to land ROR only exists in the experimental group. For many societies with long-lasting patriarchal traditions, our analysis provides a perspective to help explain gender differences in wealth distribution and social mobility.


Asunto(s)
Propiedad , Sexismo , Humanos , Femenino , Masculino , Factores Sexuales , Hombres , Inversiones en Salud
2.
Ecol Lett ; 26(2): 219-231, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36604867

RESUMEN

Evolutionary success requires both production (acquisition of food, protection and warmth) and reproduction. We suggest that both may increase disproportionately as group size grows, reflecting 'increasing returns' or 'group augmentation benefits', raising fitness in groups that cooperate in production and limit reproduction to one or a few high fertility females supported by non-reproductives, with high reproductive skew. In our optimisation theory both Allee effects (when individual fitness increases with group size or density) and reproductive skew arise when increasing returns determine optimal group size and proportion of reproductive females. Depending on which of food or maternal time is more important for reproduction, evolutionary trajectories of lineages may (1) reach a boundary constraint where only one female reproduces in a period (as with African wild dogs) or (2) reach a boundary where all females reproduce during their lifetimes but only during an early life stage (human menopause) or a late life stage (birds with non-dispersing helpers), where stage length optimises the proportion of females that is reproductive at any time or (3) reach the intersection of these boundary constraints where a single reproductive female is fully specialised in reproduction (as with eusocial insects). We end with some testable hypotheses.


Asunto(s)
Insectos , Reproducción , Animales , Humanos , Femenino , Aves , Fertilidad , Evolución Biológica
3.
J Eur Acad Dermatol Venereol ; 36(3): 434-443, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-34779063

RESUMEN

BACKGROUND: In JADE COMPARE, abrocitinib improved severity of atopic dermatitis (AD) and demonstrated rapid itch relief. OBJECTIVES: We examined clinically meaningful improvements in selected patient-reported outcomes (PROs). METHODS: JADE COMPARE was a multicentre, phase 3 randomized, double-blind, placebo-controlled trial. Adults with moderate-to-severe AD were randomized 2:2:2:1 to receive 16 weeks of oral abrocitinib 200 or 100 mg once daily, dupilumab 300 mg subcutaneous injection every 2 weeks, or placebo, with background topical therapy. PROs included Dermatology Life Quality Index (DLQI), Patient-Oriented Eczema Measure (POEM), Night Time Itch Scale (NTIS), Pruritus and Symptoms Assessment for Atopic Dermatitis, Patient Global Assessment, SCORing Atopic Dermatitis, and Hospital Anxiety and Depression Scale. RESULTS: At week 16, the proportion of patients achieving POEM scores <3 was 21.3% and 11.7% for 200 and 100 mg abrocitinib, 12.4% for dupilumab, and 4.8% for placebo (vs. abrocitinib, P < 0.0001 and P = 0.04). Proportion achieving ≥4-point improvement from baseline in NTIS severity was 64.3% and 52.4% for 200 and 100 mg abrocitinib, 54.0% for dupilumab, and 34.4% for placebo (vs. abrocitinib, P < 0.0001 and P = 0.007). Proportion achieving ≥4-point improvement from baseline in DLQI was 85.0% and 74.4% for 200 and 100 mg abrocitinib, 83.4% for dupilumab, and 59.7% for placebo (vs. abrocitinib, P < 0.0001 and P = 0.005). CONCLUSION: Significant improvements in PROs were demonstrated with both abrocitinib doses vs. placebo, and abrocitinib 200 mg provided numerically greater effects compared with dupilumab in patients with moderate-to-severe AD.


Asunto(s)
Dermatitis Atópica , Eccema , Adulto , Dermatitis Atópica/diagnóstico , Dermatitis Atópica/tratamiento farmacológico , Método Doble Ciego , Eccema/tratamiento farmacológico , Humanos , Medición de Resultados Informados por el Paciente , Pirimidinas , Índice de Severidad de la Enfermedad , Sulfonamidas , Resultado del Tratamiento
4.
Proc Natl Acad Sci U S A ; 116(14): 6548-6553, 2019 04 02.
Artículo en Inglés | MEDLINE | ID: mdl-30886101

RESUMEN

For a long time, social scientists have used correlations in social status, measured by such characteristics as schooling, income, or occupation, across family members to capture family resemblance in social status. In this study, we use millions of records from a public registry to estimate the wealth correlations among Taiwanese kinship members, from the closest parent-child pairing to the farthest kinship ties, with only 1/32 genetic relatedness. Based on this wealth correlation, we present a complete picture of economic similarity among kin members. These correlations give us a better grasp of the hitherto obscure Chinese family structure than that of mechanical genetic relatedness. We obtain statistical evidence to support the following hypotheses: Family members' wealth resemblance to male egos is stronger than to female egos, wealth correlations are larger along patrilineal lines than along matrilineal counterparts, wealthy families have larger correlations within the nuclear family members but smaller correlations outside it, and adopted children have weaker wealth resemblance with close relatives.


Asunto(s)
Ego , Renta , Relaciones Padres-Hijo , Sistema de Registros , Pueblo Asiatico , Femenino , Humanos , Masculino , Factores Socioeconómicos , Taiwán
5.
Br J Dermatol ; 185(3): 616-626, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-33657677

RESUMEN

BACKGROUND: Supportive care is the cornerstone of management of adult and paediatric Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN). However, consensus on the modalities of supportive care is lacking. OBJECTIVES: Our aim in this international multicentric Delphi exercise was to establish a multidisciplinary expert consensus to standardize recommendations regarding supportive care in the acute phase of SJS/TEN. METHODS: Participants were sent a survey via the online tool SurveyMonkey, consisting of 103 statements organized into 11 topics: multidisciplinary team composition, suspect drug management, infection prevention, fluid resuscitation and prevention of hypothermia, nutritional support, pain and psychological distress management, management of acute respiratory failure, local skincare, ophthalmological management, management of other mucosa, and additional measures. Participants evaluated the level of appropriateness of each statement on a scale of 1 (extremely inappropriate) to 9 (extremely appropriate). The results were analysed according to the RAND/UCLA Appropriateness Method. RESULTS: Forty-five participants from 13 countries (on three continents) participated. After the first round, a consensus was obtained for 82.5% of the 103 initially proposed statements. After the second round, a final consensus was obtained for 102 statements. CONCLUSIONS: We have reached an international Delphi-based consensus on best supportive care practice for SJS/TEN. Our expert consensus should help guide physicians in treating patients with SJS/TEN and thereby improve short-term prognosis and the risk of sequelae.


Asunto(s)
Síndrome de Stevens-Johnson , Adulto , Niño , Consenso , Humanos , Investigación , Estudios Retrospectivos , Síndrome de Stevens-Johnson/diagnóstico , Síndrome de Stevens-Johnson/terapia
6.
J Appl Microbiol ; 131(3): 1123-1135, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-33605066

RESUMEN

AIMS: Vaccines for bovine ephemeral fever virus (BEFV) are available but are difficult to produce, expensive or suffer from genetic instability. Therefore, we designed constructs encoding C-terminally truncated forms (transmembrane anchoring region deleted) of glycoproteins G and GNS such that they were secreted from the cell into the media to achieve high-level antigen expression, correct glycosylation pattern and enable further simple purification with the V5 epitope tag. METHODS AND RESULTS: In this study, synthetic biology was employed to create membrane-bound and secreted forms of G and GNS glycoprotein. Mammalian cell culture was employed as an antigen expression platform, and the secreted forms of G and GNS protein were easily purified from media using a highly effective, single-step method. The V5 epitope tag was genetically fused to the C-termini of the proteins, enabling detection of the antigen through immunoblotting and immunomicroscopy. Our data demonstrated that the C-terminally truncated form of the G glycoprotein was efficiently secreted from cells into the cell media. Moreover the immunogenicity was confirmed in mice test. CONCLUSIONS: The immuno-dot blots showed that the truncated G glycoprotein was present in the total cell extract, and was clearly secreted into the media, consistent with the western blotting data and live-cell images. Our strategy presented the expression of secreted, epitope-tagged, forms of the BEFV glycoproteins such that appropriately glycosylated forms of BEFV G protein was secreted from the BHK-21 cells. This indicates that high-level expression of secreted G glycoprotein is a feasible strategy for large-scale production of vaccines and improving vaccine efficacy. SIGNIFICANCE AND IMPACT OF THE STUDY: The antigen expression strategy designed in this study can produce high-quality recombinant protein and reduce the amount of antigen used in the vaccine.


Asunto(s)
Virus de la Fiebre Efímera Bovina , Fiebre Efímera , Animales , Bovinos , Fiebre Efímera/genética , Fiebre Efímera/prevención & control , Virus de la Fiebre Efímera Bovina/genética , Epítopos/genética , Glicoproteínas/genética , Ratones , Vacunas de Subunidad
7.
J Eur Acad Dermatol Venereol ; 35(2): 360-367, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32639047

RESUMEN

Current clinical recommendations suggest that continuous treatment of moderate-to-severe psoriasis with biologic agents is more effective than intermittent treatment in terms of achieving remission and maintaining it. Intermittent treatment, however, may provide an alternative approach in patients unwilling or unable to maintain a continuous regimen, such as those who would prefer a 'treatment vacation' after achieving long-term remission, those who require treatment cessation owing to adverse events, and where insurance arrangements do not provide sufficient cover for continuous treatment. We conducted a literature search of PubMed to identify publications reporting data on the efficacy and safety of intermittent treatment with biologic agents in adults with psoriasis, specifically the use of inhibitors of tumour necrosis factor (adalimumab, certolizumab pegol, etanercept and infliximab), interleukin (IL)-12/IL-23 (ustekinumab), IL-23 (guselkumab) and IL-17 (brodalumab, ixekizumab and secukinumab). From our search, we identified 18 relevant publications reporting the intermittent use of the biologic therapies of interest: five described etanercept, three described adalimumab, two each described infliximab, ixekizumab or ustekinumab, and one each described certolizumab pegol, guselkumab, brodalumab and secukinumab. In general, there were large proportions of patients (≥60%) who were able to re-establish disease control (as defined by each study) following re-treatment, and the safety profiles of the various agents during re-treatment were as anticipated from their profiles observed during continuous dosing. The exception to these general findings was infliximab, which showed the lowest rate of efficacy-endpoint achievement (25% and 38% in two dosing groups evaluated) as well as a higher incidence of adverse infusion reactions compared with continuous dosing. In conclusion, the use of biologic agents in psoriasis is changing and current clinical data suggest that intermittent treatment may provide an effective and well-tolerated option for certain patients.


Asunto(s)
Factores Biológicos , Psoriasis , Adalimumab , Adulto , Anticuerpos Monoclonales/efectos adversos , Factores Biológicos/uso terapéutico , Humanos , Psoriasis/tratamiento farmacológico , Ustekinumab
8.
J Eur Acad Dermatol Venereol ; 35(3): 712-720, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32896010

RESUMEN

BACKGROUND: There is increasing use of anti-osteoporotic agents (AOA) worldwide for prevention or management of patients with osteoporosis. However, there have been reports of severe cutaneous adverse reactions (SCAR) induced by AOA. A recent study showed weak association between HLA and strontium ranelate (SR)-SCAR. OBJECTIVE: To characterize patients with AOA-SCAR and investigate the HLA association and utility of in vitro diagnostic methods. METHODS: We enrolled 16 cases with AOA-cutaneous adverse drug reactions (cADR), including SCAR (n = 10: 8 with Stevens-Johnson syndrome [SJS] and 2 with drug rash with eosinophilia and systemic symptoms [DRESS]) and maculopapular exanthema (MPE) (n = 6) from Taiwan and Hong Kong. We analysed the clinical characteristics, outcomes, HLA alleles and in vitro testing of AOA-SCAR, and tolerability to alternative drugs. We further performed literature review and meta-analysis on the HLA association of AOA-SCAR. RESULTS: Our data showed strontium ranelate is the most common causality of AOA-SCAR in Asian populations. There was no cross-hypersensitivity of SR-SCAR with other AOA. HLA genotyping showed that SR-SJS was most significantly associated with HLA-A*33:03 (Pc = 5.17 × 10-3 , OR: 25.97, 95% CI: 3.08-219.33). Meta-analysis showed that HLA-A*33:03 was associated with SR-SJS (P = 5.01 × 10-5 ; sensitivity: 85.7%) in Asians. The sensitivity of lymphocyte activation test (LAT) for identifying the culprit drug of SR-SJS was 83.3%. CONCLUSIONS: Strontium ranelate is identified as the most notorious AOA associated with SCAR. The HLA-A*33:03 genetic allele and LAT testing may add benefits to the diagnosis of SR-SCAR in patients whose reaction developed while taking multiple drugs.


Asunto(s)
Síndrome de Stevens-Johnson , Alelos , Anticonvulsivantes , Pueblo Asiatico , Antígenos HLA-B/genética , Hong Kong , Humanos , Taiwán
9.
Br J Dermatol ; 183(5): 909-919, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32037509

RESUMEN

BACKGROUND: Drug reaction with eosinophilia and systemic symptoms (DRESS) is a condition caused by a drug-induced immune response. Previous reports have found that CXCL10, also known as interferon-γ-induced protein (IP)-10, may participate in the pathogenesis of cutaneous adverse drug reactions. However, the exact role of IP-10 in DRESS and Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN) has remained unknown. OBJECTIVES: This comparative prospective cohort study aimed to ascertain the roles of the IP-10/CXCR3 axis in DRESS and SJS/TEN. METHODS: Plasma IP-10 levels were analysed, and univariate analyses were conducted to assess the relationship between IP-10, human herpesvirus (HHV)-6 reactivation and the development of long-term sequelae. We also performed immunohistochemical staining using skin specimens and flow cytometry to determine the expression of CXCR3 in peripheral blood mononuclear cells (PBMCs). RESULTS: Significantly higher plasma IP-10 levels were observed in patients with DRESS with long-term sequelae (effect size 0·81) and also in those with HHV-6 reactivation (effect size 0·83). By immunohistochemistry, more abundant IP-10+ and CXCR3+ cells were demonstrated in the skin lesions of patients with DRESS with HHV-6 reactivation. The percentages of CLA+  CXCR3+  CD4+ cells and CLA+  CXCR3+  CD8+ cells were also higher in the PBMCs of HHV-6-reactivated patients with DRESS than in those of patients with SJS/TEN. CONCLUSIONS: Higher plasma IP-10 levels are associated with the development of long-term sequelae in DRESS. Higher IP-10/CXCR3 expression in skin and more abundant CLA+  CXCR3+  CD4+ cells and CLA+  CXCR3+  CD8+ cells were observed in patients with DRESS with HHV-6 reactivation. The IP-10/CXCR3 axis is associated with HHV-6 reactivation and development of long-term sequelae in DRESS. What is already known about this topic? Elevated levels of interferon-γ-induced protein-10 (IP-10) have been observed in patients with drug reaction with eosinophilia and systemic symptoms (DRESS) and Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN). Patients with DRESS tend to develop long-term autoimmune sequelae, including type 1 diabetes and autoimmune thyroiditis. IP-10 has been associated with these autoimmune diseases in previous studies. What does this study add? The patients with DRESS with HHV-6 reactivation exhibited higher levels of IP-10 in the plasma and skin than the patients with DRESS without HHV-6 reactivation and the patients with SJS/TEN. Patients with DRESS with higher plasma IP-10 levels tended to develop sequelae during long-term follow-up. What is the translational message? IP-10 is a useful biomarker to predict the development of long-term sequelae in patients with DRESS. Linked Comment: Belloón and Kardaun. Br J Dermatol 2020; 183:804-805.


Asunto(s)
Quimiocina CXCL10 , Síndrome de Hipersensibilidad a Medicamentos , Herpesvirus Humano 6 , Receptores CXCR3 , Síndrome de Stevens-Johnson , Humanos , Interferón gamma , Leucocitos Mononucleares , Estudios Prospectivos , Activación Viral
10.
Br J Dermatol ; 182(2): 335-341, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-31220338

RESUMEN

BACKGROUND: The prevalence of psychiatric comorbidities in patients with chronic urticaria (CU) in a national population is largely unknown. OBJECTIVES: To investigate the prevalence of psychiatric disorders and psychiatric medication use in patients with CU in Taiwan. METHODS: Data were sourced from Taiwan's National Health Insurance Research Database for 2011. Patients who had a primary/secondary International Classification of Diseases, Ninth Revision, Clinical Modification diagnosis code of 708·1, 708·8 or 708·9 during 2011 with at least two outpatient visits and an antihistamine prescription were identified as CU cases. Patients with CU were classified into three disease severity groups according to their medication types. Psychiatric disorders were identified by patients having three outpatient visits with a primary or secondary diagnosis of a given psychiatric disease. Psychiatric medication use was defined by having at least four outpatient visits with prescriptions for anxiolytics, antidepressants or sleeping pills in 2010 or 2011. RESULTS: Of the 167 132 patients with CU, 82·5% had mild CU, 17·0% had moderate CU and 0·4% had severe CU. Patients with CU had a higher prevalence of psychiatric disorders and psychiatric medication prescription than control groups. The relative risk (RR) of psychiatric disorders was 1·43 for patients with mild, 1·50 for patients with moderate and 2·32 for patients with severe CU vs. the controls (P < 0·001). For psychiatric medication prescription, the RRs were 1·95, 2·70 and 2·09, respectively, vs. controls (P < 0·001). CONCLUSIONS: Patients with CU had a higher prevalence and risk of psychiatric disorders and psychiatric medication prescription than control groups. What's already known about this topic? Previous studies have shown a high prevalence of psychiatric comorbidities in patients with chronic urticaria (CU), with rates ranging from 35% to 60%. Anxiety, depression and somatoform disorders have been reported as the most prevalent mental disorders in patients with CU. What does this study add? Patients with CU had a higher prevalence of psychiatric disorders and psychiatric medication use than control groups in the general population. The relative risk (RR) of psychiatric disorders was 1·43 for those with mild CU, 1·50 for those with moderate CU and 2·32 for those with severe CU vs. controls. The RR for psychiatric medication use was 1·95 for those with mild CU, 2·70 for those with moderate CU and 2·09 for those with severe CU vs. controls. Mental health evaluations and management are important elements in CU management.


Asunto(s)
Trastornos de Ansiedad , Urticaria Crónica , Urticaria , Ansiedad , Urticaria Crónica/psicología , Comorbilidad , Humanos , Taiwán/epidemiología , Urticaria/epidemiología
11.
Br J Dermatol ; 182(5): 1205-1213, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-31408190

RESUMEN

BACKGROUND: Acral melanoma (AM) is the most common histopathological subtype of malignant melanoma in Asians. However, differences in the mutational profiles underlying AM and nonacral cutaneous melanoma (NAM) in Asians are not well understood. OBJECTIVES: To augment the understanding of the prevalence, patterns and associations of various mutations between different subtypes of melanoma. METHODS: We performed comprehensive genomic profiling of 409 cancer-associated genes, using next-generation sequencing, in 66 primary melanomas comprised of 45 AMs and 21 NAMs. RESULTS: Most of the AMs (n = 27/45; 60%), but only five of 21 (24%) NAMs, were triple wild-type (triple-WT) tumours. Compared with AMs, NAMs exhibited a significantly higher frequency of BRAF mutations. The frequencies of NRAS/KRAS mutations, cell-cycle aberrations, copy number gains in BIRC2, BIRC3 and BIRC5, and gains of receptor tyrosine kinase genes were significantly higher in AMs. Ulceration was found at significantly higher rates in the AMs and NAMs with cell-cycle aberrations and gains of receptor tyrosine kinase genes. Notably, cell-cycle aberrations and copy number gains in BIRC2, BIRC3 and BIRC5 were significantly associated with poor melanoma-specific survival in the 66 patients with melanoma and especially in the 45 patients with AM. Multivariate analysis showed that lymph node metastasis and cell-cycle aberrations were independent prognostic factors of melanoma-specific survival. CONCLUSIONS: This study strengthens our understanding of the patterns and clinical associations of oncogenic mutations in AMs and NAMs in Asians. What's already known about this topic? Mutation frequencies of driver genes vary between melanoma subtypes. Acral melanoma is the most common subtype of melanoma in Asians. KIT mutations and copy number variations occur more frequently in the acral subtype of melanoma than in the nonacral subtype What does this study add? NRAS/KRAS mutations, cell-cycle aberrations, copy number gains in BIRC2, BIRC3 and BIRC5, and amplifications of receptor tyrosine kinase genes were significantly enriched in acral melanoma and could be potential targets for treatment. Melanomas with cell-cycle aberrations and gains in receptor tyrosine kinase genes were significantly more likely to contain ulceration. What is the translational message? Cell-cycle aberrations and copy number gains in BIRC2, BIRC3 and BIRC5 were significantly associated with poor melanoma-specific survival. These observations should be explored further for future drug development.


Asunto(s)
Melanoma , Neoplasias Cutáneas , Variaciones en el Número de Copia de ADN , Humanos , Melanoma/genética , Mutación/genética , Proteínas Proto-Oncogénicas B-raf/genética , Neoplasias Cutáneas/genética , Taiwán/epidemiología
12.
J Appl Microbiol ; 129(5): 1185-1192, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-32441051

RESUMEN

AIMS: Riemerella anatipestifer infections of goslings and ducklings can result in high mortality. Since there are at least 21 serotypes of R. anatipestifer, cross-protection is an important goal for vaccine development. METHODS AND RESULTS: In this study, we evaluated the immunostimulatory effect of different immunization regimens - the traditional inactivated vaccine vs prime-boost regimens using DNA and protein subunit vaccines (DNA+subunit, subunit+subunit, subunit+inactivated and DNA+DNA). Results showed that, when compared to the inactivated vaccine, prime-boost regimens induced higher and up to 16-week longer lasting levels of antibody responses, significantly elevated the percentage of the cytotoxic CD8+ T cell and higher expression levels of IFN-γ, IL-6 and IL-12 mRNAs. Furthermore, as an indication of cross-protection, sera from prime-boost regimens were able to recognize lysates of R. anatipestifer serotypes 1, 2 and 6. CONCLUSIONS: Prime-boost regimens especially DNA-prime and protein-boost, induce strong long-term immune response and may prove protective for breeder ducks requiring long-term protection. SIGNIFICANCE AND IMPACT OF THE STUDY: It is worth mentioning that the subunit+inactivated regimen group also elicited strong immune response. The cost of this regimen may only be half of the other prime-boost regimens, making this subunit + inactivated combination an attractive option.


Asunto(s)
Vacunas Bacterianas/inmunología , Infecciones por Flavobacteriaceae/veterinaria , Inmunización/métodos , Enfermedades de las Aves de Corral/prevención & control , Riemerella/inmunología , Animales , Proteínas Bacterianas/genética , Proteínas Bacterianas/inmunología , Proteínas Bacterianas/metabolismo , Vacunas Bacterianas/administración & dosificación , Protección Cruzada , Patos/microbiología , Infecciones por Flavobacteriaceae/microbiología , Infecciones por Flavobacteriaceae/prevención & control , Enfermedades de las Aves de Corral/microbiología , Riemerella/genética , Vacunas de ADN/administración & dosificación , Vacunas de ADN/inmunología , Vacunas de Subunidad/administración & dosificación , Vacunas de Subunidad/inmunología
13.
J Appl Microbiol ; 126(1): 49-57, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-30288879

RESUMEN

AIMS: To evaluate the effect of a DNA priming and protein boosting immunization scheme in ducks. METHODS AND RESULTS: Pekin ducks were immunized with pTCY/VP2 DNA vaccine; on day 14 (D14) after primary immunization, the ducks were boosted with either the same vaccine (DNA + DNA) or the rVP2 vaccine (DNA + rVP2). CpG oligodeoxynucleotides containing three copies of GACGTT motifs were used as the adjuvant in the vaccines. Compared with unimmunized controls, both immunization schemes significantly increased the titre of antigen-specific antibodies, lymphocyte proliferation index, percentage of CD4+ and CD8+ cells in peripheral blood mononuclear cells (PBMCs) and mRNA expression of interferon (IFN)-α, IFN-γ, interleukin (IL)-6 and IL-12 in antigen-stimulated PBMCs. Furthermore, compared with the DNA + DNA homologous scheme, the DNA + rVP2 heterologous scheme significantly increased lymphocyte proliferation, percentage of CD4+ and CD8+ cells in PBMCs and upregulation of mRNA expression of cytokines 2 weeks after the boost (D28). CONCLUSIONS: The DNA + rVP2 immunization scheme enhanced immune responses, mainly Th1 type, against parvovirus in ducks. SIGNIFICANCE AND IMPACT OF THE STUDY: The DNA priming and protein boosting heterologous immunization strategy can be applied to develop vaccines against viral infections in ducks. It can potentially be used in breeding ducks because of long-term immunity may confer protection for ducklings.


Asunto(s)
Infecciones por Parvoviridae/veterinaria , Parvovirus/inmunología , Enfermedades de las Aves de Corral/prevención & control , Vacunas de ADN/administración & dosificación , Proteínas Virales/administración & dosificación , Adyuvantes Inmunológicos/administración & dosificación , Animales , Citocinas/genética , Citocinas/inmunología , Patos , Inmunización , Inmunización Secundaria , Leucocitos Mononucleares/inmunología , Infecciones por Parvoviridae/inmunología , Infecciones por Parvoviridae/prevención & control , Infecciones por Parvoviridae/virología , Parvovirus/genética , Enfermedades de las Aves de Corral/genética , Enfermedades de las Aves de Corral/inmunología , Enfermedades de las Aves de Corral/virología , Células TH1/inmunología , Vacunas de ADN/genética , Vacunas de ADN/inmunología , Proteínas Virales/genética , Proteínas Virales/inmunología
14.
J Eur Acad Dermatol Venereol ; 33(1): 204-212, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29894010

RESUMEN

BACKGROUND: Oncologic treatments may lead to the development of paronychia, which may cause severe pain and disability. However, a detailed objective scoring system is lacking. OBJECTIVE: To develop an objective scoring system to quantify the severity of paronychia and also examine the correlation of this score with a pain index and patients' quality of life. METHODS: A novel scoring system for paronychia related to oncologic treatments (SPOT), consisting of four parameters, namely redness, oedema, discharge and granulation tissue, was designed to assess the severity of paronychia. The visual analogue scale (VAS) and Dermatology Quality of Life Index (DLQI) were recorded, and their association with the SPOT scores was analysed. RESULTS: Ninety patients were enrolled from three medical centres in Taiwan. Severity of paronychia was determined by the scores of SPOT. Patients in the severe group had higher DLQI scores (severe vs. mild: P = 0.0018; severe vs. moderate: P = 0.0015). Both the DLQI and pain index scores were significantly higher in patients with higher dominant hand SPOT scores. CONCLUSIONS: The SPOT scores demonstrated the association of the paronychia severity with DLQI and pain. It may thus be useful in clinical practice and future studies.


Asunto(s)
Antineoplásicos/efectos adversos , Dimensión del Dolor , Paroniquia/inducido químicamente , Calidad de Vida , Índice de Severidad de la Enfermedad , Edema/inducido químicamente , Eritema/inducido químicamente , Exudados y Transudados , Femenino , Tejido de Granulación/patología , Humanos , Masculino , Persona de Mediana Edad , Dolor/etiología , Paroniquia/complicaciones , Paroniquia/patología , Estudios Prospectivos
15.
J Appl Microbiol ; 124(6): 1366-1376, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29431246

RESUMEN

AIMS: Available bacterins, commercial or autogenous, for Actinobacillus pleuropneumoniae disease control have, thus far, shown debatable protective efficacy and only in homologous challenges. Our study sought to determine whether the addition of reombinant protein ApxIV to the multicomponent vaccine could enhance protection against homologous and heterologous challenge of A. pleuropneumoniae. METHODS AND RESULTS: The virulence of ApxI, ApxII, ApxIV and OMP were cloned and expressed using a prokaryotic system; these recombinant proteins were combined with inactivated A. pleuropneumoniae serovar 1 to formulate different multicomponent vaccines. Immune response and protective efficacy of the vaccines were evaluated in mice and pigs. A protection rate of 67% was observed against heterologous challenge in mice vaccinated with the rApxIV formulation. Piglets vaccinated with vaccine containing ApxIV produced significantly higher antibody titre and provided complete protection and reduced gross lesions by 67% when compared with the nonimmunized group after homologous challenge. Additionally, flow cytometry analysis showed significant cellular immune response. CONCLUSIONS: The results of our vaccination experiments revealed that a combination of inactivated bacteria and the recombinant antigens rApxI, rApxII, rApxIV and rOMP can provide effective protection against heterologous A. pleuropneumoniae challenge. SIGNIFICANCE AND IMPACT OF THE STUDY: The addition of ApxIV to the multicomponent vaccine could enhance homologous and heterologous protection in mice and pigs, respectively, against challenge by A. pleuropneumoniae.


Asunto(s)
Infecciones por Actinobacillus/veterinaria , Actinobacillus pleuropneumoniae/inmunología , Proteínas Bacterianas/inmunología , Enfermedades de los Porcinos/prevención & control , Infecciones por Actinobacillus/inmunología , Infecciones por Actinobacillus/microbiología , Infecciones por Actinobacillus/prevención & control , Actinobacillus pleuropneumoniae/genética , Animales , Anticuerpos Antibacterianos/inmunología , Proteínas Bacterianas/administración & dosificación , Proteínas Bacterianas/genética , Vacunas Bacterianas/administración & dosificación , Vacunas Bacterianas/genética , Vacunas Bacterianas/inmunología , Femenino , Ratones , Proteínas Recombinantes/administración & dosificación , Proteínas Recombinantes/genética , Proteínas Recombinantes/inmunología , Porcinos , Enfermedades de los Porcinos/inmunología , Enfermedades de los Porcinos/microbiología , Vacunación
16.
Allergy ; 72(11): 1713-1719, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-28439896

RESUMEN

BACKGROUND: Adherence to topical corticosteroids (TCS) is essential for the effective treatment of atopic dermatitis but can be limited by concerns about their use. This study examined the feasibility of applying the validated TOPICOP score for assessing TCS phobia across different countries. METHODS: This was a prospective multicentre feasibility study conducted in 21 hospitals in 17 countries. Patients >3 months of age with atopic dermatitis or their parents or legal representatives completed a validated translation of the TOPICOP questionnaire in the country's native language. Respondents also completed questionnaires collecting opinions about the feasibility and acceptability of the TOPICOP questionnaire. RESULTS: A total of 1564 participants in 15 countries were included in the analysis. 81% of respondents considered the questions clear or very clear, and 79% reported that it took less than 5 minutes to complete. Each of the individual items in the TOPICOP questionnaire was considered to be not at all difficult to answer by 49% to 74% of participants. The mean global TOPICOP score was 44.7%±20.5. Mean TOPICOP subscores were 37.0±22.8% for knowledge and beliefs, 54.7±27.8% for fears and 50.1±29.1% for behaviours. Global scores and subscores differed between countries, although the subscores did not always vary in parallel, suggesting different levels of TCS phobia and different drivers for each country. CONCLUSIONS: The TOPICOP score can be feasibly applied across countries and may therefore be useful for obtaining qualitative and quantitative data from international studies and for adapting patient education and treatment.


Asunto(s)
Corticoesteroides/uso terapéutico , Dermatitis Atópica/tratamiento farmacológico , Trastornos Fóbicos , Administración Tópica , Niño , Preescolar , Dermatitis Atópica/psicología , Estudios de Factibilidad , Humanos , Lactante , Estudios Prospectivos , Encuestas y Cuestionarios
18.
Zhonghua Yi Xue Za Zhi ; 97(17): 1290-1294, 2017 May 09.
Artículo en Zh | MEDLINE | ID: mdl-28482427

RESUMEN

Objective: To explore the correlation between clinical symptoms of patients with obsessive-compulsive disorder (OCD) and the activation pattern of brain neurons at resting. Methods: A total of 26 patients diagnosed with fist-episode OCD were selected and underwent functional magnetic resonance imaging (fMRI) scanning at resting state. The fMRI data were processed by statistical parametric mapping (SPM8), Data Processing Assistant for Resting-State fMRI Analysis Toolkit (DPARSFA), and Resting State fMRI Data Analysis Toolkit (REST) software. With age as concomitant variable, Pearson Correlation Analysis was adopted to study the correlation between clinical symptoms (obsessive thoughts and compulsive behavior) of patients and their regional homogeneity ( ReHo) values of whole brain. Results: The positive correlation between obsessive thoughts score of patients with OCD and ReHo value lied in insular_L, insular_R, cerebellum_L, cerebellum_R, calcarine_L, cuneus_L. The negative correlation between obsessive thoughts score of patients with OCD and ReHo value lied in thalamus_L, precuneus_L, caudate_L, cingulum_R, frontal_R. The positive correlation between compulsive behavior score of patients with OCD and ReHo value lied in temporal_L, frontal_inf_orb_l, frontal_inf_orb_R, frontal_mid_L, precentral_R. The negative correlation between compulsive behavior score of patients with OCD and ReHo value lied in cingulum-L, cingulum-R, caudate_L. Conclusion: Different obsessive-compulsive symptoms has different image foundation, and the dysfunction of cingulate has a major impact on the incidence of both obsessive thoughts and compulsive behavior of OCD patients.


Asunto(s)
Mapeo Encefálico , Encéfalo/fisiopatología , Neuronas , Trastorno Obsesivo Compulsivo/fisiopatología , Humanos , Imagen por Resonancia Magnética , Trastorno Obsesivo Compulsivo/diagnóstico por imagen
20.
J Eur Acad Dermatol Venereol ; 30(1): 41-9, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26428436

RESUMEN

BACKGROUND: Treatment guidelines for chronic spontaneous/idiopathic urticaria (CSU) are available; however, only 50% of patients are well controlled with approved doses of H1-antihistamines, and certain patients remain symptomatic despite receiving up to 4× the approved dose of H1-antihistamines plus H2 antihistamines and/or leucotriene-receptor antagonists. OBJECTIVES: To highlight real-life clinical practice in Taiwan and to understand the unmet medical needs of CSU patients. METHODS: A nationwide cross-sectional, observational survey of 50 dermatologists and 200 CSU patients was conducted between June 2013 and November 2013. Face-to-face interviews of dermatologists and online interviews of CSU patients were conducted independently. RESULTS: Dermatologists reported that dermographism and blood tests were the most commonly used diagnostic methods to confirm the diagnosis. The key driving factor for most clinic-based dermatologists (70%) in choosing a treatment was 'response to my medicines', and most preferred H1-antihistamines and steroids for treating CSU patients, whereas most hospital-based dermatologists (85%) gave higher priority to 'severity and impact of the conditions'. Patients were reported to have high psychological pressures and significant impact of CSU on their daily activity. In addition, CSU patients were not satisfied with their current treatment and 69% of patients switched their first-consulted physician. Furthermore, lack of information and concerns about side-effects were major factors which held back patients from seeking Western treatment. CONCLUSIONS: There is an unmet medical need of CSU patients in Taiwan highlighting gaps among guidelines, real-life clinical practice, patients' perceptions and patients' knowledge of their disease.


Asunto(s)
Necesidades y Demandas de Servicios de Salud , Antagonistas de los Receptores Histamínicos H1/uso terapéutico , Antagonistas de los Receptores H2 de la Histamina/uso terapéutico , Antagonistas de Leucotrieno/uso terapéutico , Pautas de la Práctica en Medicina/estadística & datos numéricos , Urticaria/tratamiento farmacológico , Actividades Cotidianas , Adulto , Enfermedad Crónica , Estudios Transversales , Femenino , Humanos , Entrevistas como Asunto , Masculino , Persona de Mediana Edad , Taiwán , Urticaria/diagnóstico , Urticaria/psicología
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