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1.
Perspect Public Health ; : 17579139231180755, 2023 Jul 12.
Artículo en Inglés | MEDLINE | ID: mdl-37434518

RESUMEN

AIMS: Foodbanks provide emergency food provision. This need can be triggered by a change in circumstance or a crisis. Failures in the social security safety net are the most significant driver for hunger in the UK. There is some evidence that an advisory service which runs alongside a foodbank is more effective in reducing emergency provision and the duration and severity of hunger. The 'Making a Difference' project at an English foodbank is a pilot scheme aiming to increase financial resilience in their service users. From summer 2022, they introduced new advice worker roles, in partnership with Shelter [Housing advice] and Citizen's Advice [General, debt and benefits advice], aiming to pre-empt the need for foodbank use, to triage the financial needs of service users and refer appropriately to reduce repeat visits to the foodbank. METHODS: This qualitative study involved in-depth interviews with four staff and four volunteers to evaluate barriers, facilitators and potential friction points in referrals and partnership working. FINDINGS: Our data were analysed thematically into four themes: Holistic needs assessment; Reaching seldom heard communities; Empowerment; The needs of staff and volunteers. Two case studies illustrate the complexity of people's needs. CONCLUSION: A financial inclusion service operating within foodbanks giving housing, debt and benefits advice shows some promise in reaching people in crisis at the point of need. Based within the heart of a community, it appears to meet the complex needs of very vulnerable people who may have found mainstream support services inaccessible. This asset-based approach with the foodbank as a trusted provider enabled joined up, compassionate, holistic, and person-centred advice quickly cutting across multiple agencies, reaching underserved and socially excluded clients. We suggest that supportive services are needed for volunteers and staff who are vulnerable to vicarious trauma from listening and supporting people in crisis.

2.
Perspect Public Health ; : 17579139231185004, 2023 Jul 25.
Artículo en Inglés | MEDLINE | ID: mdl-37489838

RESUMEN

AIMS: (1) To explore how social prescribing referrals impact experiences of existing members of a voluntary and community-based organisation and (2) to describe the processes and relationships associated with joining community and voluntary organisations. METHODS: Online survey and qualitative interviews with members of Men's Sheds, a global volunteer-led initiative to address loneliness and social isolation in men. 93 self-selecting Shed members (average age 67 years, 93% male) from across England and Scotland took part in the survey about demographics, joining the Shed, and free-text questions about experiences in the Shed. From the survey participants, 21 Shed members were purposively sampled and interviewed to explore the impact of social prescribing and referrals on the Sheds. RESULTS: Participating in the Men's Shed was often associated with a significant change in personal circumstances, and Sheds provided a unique social support space, particularly valuable for men. Key factors around experiences of social prescribing and referral mechanisms were identified. We developed three themes: the experience of joining a Shed, success factors and risks of social prescribing, and 'we care but we're not carers'. CONCLUSIONS: The results show that Men's Sheds are a caring organisation, but their members are not trained as professional carers, and men come to the Shed for their own personal reasons. They are concerned about the potential additional responsibilities associated with formal referrals. They encourage the development of relationships and local-level understanding of the essence of Sheds to enable social prescribing. As models of social prescribing grow nationally and internationally, collaboratively working with voluntary and community organisations to develop a mutually beneficial approach is essential for the effectiveness and sustainability of social prescribing in community health.

3.
Vet Parasitol Reg Stud Reports ; 41: 100876, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-37208075

RESUMEN

Toxoplasmosis is caused by the ubiquitous Apicomplexan protozoan Toxoplasma gondii. This pathogen affects domestic and wildlife species, but prosimians including ring-tailed lemurs (Lemur catta) are highly susceptible to infection with high mortality rates. Avian species are considered resistant to infection and are often used in surveillance efforts to determine genotypes of T. gondii present in geographical areas. This study describes the gross and histologic lesions of an outbreak of toxoplasmosis in a university-run zoological collection involving three ring-tailed lemurs and a peahen (Pavo cristatus). DNA was extracted from the liver of the lemurs and peahen to determine the genotype of T. gondii by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP), which revealed that all samples were ToxoDB PCR-RFLP genotype #5 (haplogroup 12) that is common in wildlife in North America.


Asunto(s)
Lemur , Toxoplasma , Toxoplasmosis Animal , Animales , Animales Salvajes , Toxoplasma/genética , Toxoplasmosis Animal/epidemiología , Genotipo
4.
J Vet Cardiol ; 41: 128-133, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35349851

RESUMEN

A 4.2-year-old, male castrated Boxer was diagnosed with a dilated cardiomyopathy phenotype, complex arrhythmias and left-sided congestive heart failure, but died suddenly shortly after initial diagnostics were complete. Ultrasensitive cardiac troponin I was markedly elevated (9.345 ng/mL [reference range: 0-0.06 ng/mL]), and a Trypanosoma cruzi immunofluorescent antibody titer was positive at 1:80. Necropsy revealed a severe, necrotizing, histiocytic, lymphoplasmacytic pancarditis with intralesional algae consistent with protothecosis, as well as evidence of left-sided congestive heart failure. Algal organisms were found only in the heart. Acute Chagas disease was not thought to play a role given the lack of T. cruzi amastigotes on postmortem and negative reverse transcription polymerase chain reaction testing on formalin fixed, paraffin embedded myocardium, however a possible contribution of chronic Chagas disease to the clinical picture could not be ruled out. Canine protothecosis is typically a disseminated disease. This case represents the first report of canine protothecosis limited solely to the heart.


Asunto(s)
Enfermedad de Chagas , Enfermedades de los Perros , Insuficiencia Cardíaca , Miocarditis , Enfermedades Cutáneas Infecciosas , Trypanosoma cruzi , Animales , Enfermedad de Chagas/diagnóstico , Enfermedad de Chagas/veterinaria , Enfermedades de los Perros/diagnóstico , Perros , Insuficiencia Cardíaca/veterinaria , Masculino , Miocarditis/veterinaria , Enfermedades Cutáneas Infecciosas/veterinaria
5.
J Palliat Care ; 37(3): 310-316, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35138202

RESUMEN

Background: Covid-19 infection is associated with significant risk of death, particularly in older, comorbid patients. Emerging evidence supports use of non-invasive respiratory support (CPAP and high-flow nasal oxygen [HFNO]) in this context, but little is known about its use in patients receiving end-of-life care. Methods: This was a retrospective study of 33 patients who died of Covid-19 on the Respiratory High Dependency Unit at the John Radcliffe Hospital, Oxford between 28/03/20 and 20/05/20. Data was sourced via retrospective review of electronic patient records and drug charts. Results: Patients dying from Covid-19 on the Respiratory HDU were comorbid with median Charlson Comorbidity Index 5 (IQR 4-6); median age 78 (IQR 72-85). Respiratory support was trialled in all but one case with CPAP being the most common form of first line respiratory support (84.8%) however, was only tolerated in 44.8% of patients. Median time to death was 10.7 days from symptom onset (IQR 7.5-14.6) and 4.9 days from hospital admission (IQR 3.1-8.3). 48.5% of patients remained on respiratory support at the time of death. Conclusions: End-of-life care for patients with Covid-19 remains a challenge. Patients tend to be frail and comorbid with a rapid disease trajectory. Non-Invasive Respiratory Support may play a key role in symptom management in select patients, however, further work is needed in order to identify patients who will most benefit from Respiratory Support and those for whom withdrawal may prevent unnecessary distress at the end of life or potential prolongation of suffering.


Asunto(s)
COVID-19 , Anciano , Presión de las Vías Aéreas Positiva Contínua , Hospitalización , Humanos , Estudios Retrospectivos , SARS-CoV-2
7.
Ultrasound Obstet Gynecol ; 58(5): 716-721, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-33533520

RESUMEN

OBJECTIVES: Placental expression of neuropilin-1 (NRP1), a proangiogenic member of the vascular endothelial growth factor receptor family involved in sprouting angiogenesis, was recently discovered to be downregulated in pregnancies with fetal growth restriction (FGR) and abnormal umbilical artery (UA) Doppler. Soluble NRP1 (sNRP1) is an antagonist to NRP1; however, little is known about its role in normal and FGR pregnancies. This study tested the hypotheses that, first, sNRP1 would be detectable in maternal circulation and, second, its concentration would be upregulated in FGR pregnancies compared to those with normal fetal growth and this would correlate with the severity of the disease as assessed by UA Doppler. METHODS: This was a prospective case-control pilot study of 40 singleton pregnancies (20 FGR cases and 20 uncomplicated controls) between 24 + 0 and 40 + 0 weeks' gestation followed in an academic perinatal center from January 2015 to May 2017. FGR was defined as an ultrasound-estimated fetal weight < 10th percentile for gestational age. The control group was matched to the FGR group for maternal age and gestational age at assessment. Fetal ultrasound biometry and UA Doppler were performed using standard protocols. Maternal plasma sNRP1 measurements were performed using a commercially available ELISA. RESULTS: Contrary to the study hypothesis, maternal plasma sNRP1 levels were significantly decreased in FGR pregnancies as compared to those with normal fetal growth (137.4 ± 44.8 pg/mL vs 166.7 ± 36.9 pg/mL; P = 0.03). However, there was no significant difference in sNRP1 concentration between the control group and FGR pregnancies that had normal UA Doppler. Plasma sNRP1 was downregulated in FGR pregnancies with elevated UA systolic/diastolic ratio (P = 0.023) and those with UA absent or reversed end-diastolic flow (P = 0.005) in comparison to FGR pregnancies with normal UA Doppler. This suggests that biometrically small fetuses without hemodynamic compromise are small-for-gestational age rather than FGR. CONCLUSIONS: This study demonstrated a significant decrease in maternal plasma sNRP1 concentration in growth-restricted pregnancies with fetoplacental circulatory compromise. These findings suggest a possible role of sNRP1 in modulating fetal growth and its potential as a biomarker for FGR. © 2021 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.


Asunto(s)
Retardo del Crecimiento Fetal/sangre , Neuropilina-1/sangre , Circulación Placentaria , Ultrasonografía Doppler , Ultrasonografía Prenatal , Arterias Umbilicales/anomalías , Adulto , Biometría , Estudios de Casos y Controles , Regulación hacia Abajo , Femenino , Retardo del Crecimiento Fetal/diagnóstico por imagen , Peso Fetal , Edad Gestacional , Humanos , Recién Nacido , Recién Nacido Pequeño para la Edad Gestacional , Proyectos Piloto , Placenta/metabolismo , Embarazo , Estudios Prospectivos , Índice de Severidad de la Enfermedad , Arterias Umbilicales/diagnóstico por imagen , Arterias Umbilicales/embriología
8.
J Vet Cardiol ; 33: 1-5, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33221699

RESUMEN

Idiopathic dilated cardiomyopathy (DCM) is a common acquired cardiac disease in large breed dogs with a high prevalence in Doberman pinschers. It is characterized histologically by attenuated wavy fibers and fatty infiltration with degeneration. The phenotypic appearance of DCM includes ventricular dilation with systolic dysfunction and ventricular arrhythmias. These changes can be caused by other etiologies, including infectious, toxic, metabolic, and nutritional deficiencies. Chagas disease is the result of an infection with the protozoal parasite, Trypanosoma cruzi, transmitted by an insect vector. Histopathology of the myocardium is characterized by inflammation, fibrosis, and pseudocysts containing T. cruzi amastigotes. Differentiating idiopathic DCM from infectious myocarditis can be challenging when the clinical presentation and diagnostic test results are similar in affected dogs. We present thoracic radiographs, echocardiography, and post-mortem histopathology images obtained from two Doberman pinschers with similar signalment, clinical presentation, and electrocardiographic and echocardiographic appearance but with different appearing radiographs and different etiologies for their heart disease, one with idiopathic DCM and one with myocarditis attributed to Chagas disease, to highlight the value of considering alternative etiologies for DCM to guide additional clinical evaluation and owner counseling.


Asunto(s)
Cardiomiopatía Dilatada/veterinaria , Cardiomiopatía Chagásica/veterinaria , Enfermedades de los Perros/etiología , Animales , Cardiomiopatía Dilatada/diagnóstico por imagen , Cardiomiopatía Dilatada/etiología , Cardiomiopatía Dilatada/patología , Cardiomiopatía Chagásica/diagnóstico por imagen , Cardiomiopatía Chagásica/patología , Enfermedades de los Perros/diagnóstico , Enfermedades de los Perros/parasitología , Enfermedades de los Perros/patología , Perros , Ecocardiografía/veterinaria , Electrocardiografía/veterinaria , Masculino , Tórax/diagnóstico por imagen , Trypanosoma cruzi/aislamiento & purificación
9.
Br J Surg ; 107(7): 793-800, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32463143

RESUMEN

BACKGROUND: Organ transplantation is predicted to increase as life expectancy and the incidence of chronic diseases rises. Regenerative medicine-inspired technologies challenge the efficacy of the current allograft transplantation model. METHODS: A literature review was conducted using the PubMed interface of MEDLINE from the National Library of Medicine. Results were examined for relevance to innovations of organ bioengineering to inform analysis of advances in regenerative medicine affecting organ transplantation. Data reports from the Scientific Registry of Transplant Recipient and Organ Procurement Transplantation Network from 2008 to 2019 of kidney, pancreas, liver, heart, lung and intestine transplants performed, and patients currently on waiting lists for respective organs, were reviewed to demonstrate the shortage and need for transplantable organs. RESULTS: Regenerative medicine technologies aim to repair and regenerate poorly functioning organs. One goal is to achieve an immunosuppression-free state to improve quality of life, reduce complications and toxicities, and eliminate the cost of lifelong antirejection therapy. Innovative strategies include decellularization to fabricate acellular scaffolds that will be used as a template for organ manufacturing, three-dimensional printing and interspecies blastocyst complementation. Induced pluripotent stem cells are an innovation in stem cell technology which mitigate both the ethical concerns associated with embryonic stem cells and the limitation of other progenitor cells, which lack pluripotency. Regenerative medicine technologies hold promise in a wide array of fields and applications, such as promoting regeneration of native cell lines, growth of new tissue or organs, modelling of disease states, and augmenting the viability of existing ex vivo transplanted organs. CONCLUSION: The future of organ bioengineering relies on furthering understanding of organogenesis, in vivo regeneration, regenerative immunology and long-term monitoring of implanted bioengineered organs.


Asunto(s)
Órganos Artificiales , Trasplante de Órganos , Medicina Regenerativa , Ingeniería Biomédica , Humanos , Trasplante de Órganos/métodos , Medicina Regenerativa/métodos
10.
J Interv Card Electrophysiol ; 57(1): 115-123, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31201592

RESUMEN

PURPOSE: It is uncertain whether right ventricular (RV) lead position in cardiac resynchronization therapy impacts response. There has been little detailed analysis of the activation patterns in RV septal pacing (RVSP), especially in the CRT population. We compare left bundle branch block (LBBB) activation patterns with RV pacing (RVP) within the same patients with further comparison between RV apical pacing (RVAP) and RVSP. METHODS: Body surface mapping was undertaken in 14 LBBB patients after CRT implantation. Nine patients had RVAP, 5 patients had RVSP. Activation parameters included left ventricular total activation time (LVtat), biventricular total activation time (VVtat), interventricular electrical synchronicity (VVsync), and dispersion of left ventricular activation times (LVdisp). The direction of activation wave front was also compared in each patient (wave front angle (WFA)). In silico computer modelling was applied to assess the effect of RVAP and RVSP in order to validate the clinical results. RESULTS: Patients were aged 64.6 ± 12.2 years, 12 were male, 8 were ischemic. Baseline QRS durations were 157 ± 18 ms. There was no difference in VVtat between RVP and LBBB but a longer LVtat in RVP (102.8 ± 19.6 vs. 87.4 ± 21.1 ms, p = 0.046). VVsync was significantly greater in LBBB (45.1 ± 20.2 vs. 35.9 ± 17.1 ms, p = 0.01) but LVdisp was greater in RVP (33.4 ± 5.9 vs. 27.6 ± 6.9 ms, p = 0.025). WFA did rotate clockwise with RVP vs. LBBB (82.5 ± 25.2 vs. 62.1 ± 31.7 op = 0.026). None of the measurements were different to LBBB with RVSP; however, the differences were preserved with RVAP for VVsync, LVdisp, and WFA. In silico modelling corroborated these results. CONCLUSIONS: RVAP activation differs from LBBB where RVSP appears similar. TRIAL REGISTRATION: (ClinicalTrials.gov identifier: NCT01831518).


Asunto(s)
Bloqueo de Rama/terapia , Terapia de Resincronización Cardíaca/métodos , Ventrículos Cardíacos , Anciano , Mapeo del Potencial de Superficie Corporal , Simulación por Computador , Electrocardiografía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Tomografía Computarizada por Rayos X
11.
J Comp Pathol ; 169: 30-34, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-31159948

RESUMEN

Mycobacterial infections in horses are uncommon, but are caused most frequently by Mycobacterium bovis of the Mycobacterium tuberculosis complex or Mycobacterium avium of the M. avium complex. Disease caused by Mycobacterium intracellulare, the second most common species within the M. avium complex, has not been reported in horses to date. Mycobacteriosis in horses most often presents as enteric, pulmonary or, rarely, systemic disease. Here we report a case of M. intracellulare infection in a horse presenting as a granulomatous nasal mass.


Asunto(s)
Granuloma/veterinaria , Enfermedades de los Caballos/microbiología , Infección por Mycobacterium avium-intracellulare/veterinaria , Rinitis/veterinaria , Animales , Enfermedades de los Caballos/patología , Caballos , Masculino
12.
Arthritis Res Ther ; 21(1): 142, 2019 06 07.
Artículo en Inglés | MEDLINE | ID: mdl-31174584

RESUMEN

OBJECTIVE: The aim of this study was to compare radiographic progression in patients with ankylosing spondylitis (AS) treated for up to 2 years with secukinumab (MEASURE 1) with a historical cohort of biologic-naïve patients treated with NSAIDs (ENRADAS). METHODS: Baseline and 2-year lateral cervical and lumbar spine radiographs were independently evaluated using mSASSS by two readers, who were blinded to the chronology and cohort of the radiographs. The primary endpoint was the proportion of patients with no radiographic progression (mSASSS change ≤ 0 from baseline to year 2). The Primary Analysis Set included patients with baseline (≤ day 30) and post-baseline day 31-743 radiographs. Sensitivity analyses were performed to assess the robustness of the comparison between the two cohorts, as follows: Sensitivity Analysis Set 1 included all patients with baseline (≤ day 30) and year 2 (days 640-819) radiographs; Sensitivity Analysis Set 2 included all patients with baseline and post-baseline (> day 30) radiographs. RESULTS: A total of 168 patients (84%) from the MEASURE 1 cohort and 69 (57%) from the ENRADAS cohort qualified for the Primary Analysis Set. Over 2 years, the LS (SE) mean change from baseline in mSASSS for the primary analysis was 0.55 (0.139) for MEASURE 1 vs 0.89 (0.216) for ENRADAS (p = 0.1852). Mean changes from baseline in mSASSS were lower in MEASURE 1 vs ENRADAS for the primary and sensitivity analyses. The proportion of patients with no radiographic progression was consistently higher in the MEASURE 1 vs ENRADAS cohort across all cutoffs for no radiographic progression (change in mSASSS from baseline to year 2 of ≤ 0, ≤ 0.5, ≤ 1, and ≤ 2), but the differences were not statistically significant. CONCLUSION: Secukinumab-treated patients demonstrated a numerical, but statistically non-significant, higher proportion of non-progressors and lower change in mSASSS over 2 years versus a cohort of biologic-naïve patients treated with NSAIDs.


Asunto(s)
Anticuerpos Monoclonales Humanizados/uso terapéutico , Vértebras Cervicales/diagnóstico por imagen , Vértebras Lumbares/diagnóstico por imagen , Radiografía/métodos , Espondilitis Anquilosante/tratamiento farmacológico , Adolescente , Adulto , Anciano , Progresión de la Enfermedad , Femenino , Estudios de Seguimiento , Humanos , Interleucina-17 , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Espondilitis Anquilosante/diagnóstico , Factores de Tiempo , Adulto Joven
13.
Arthritis Res Ther ; 21(1): 111, 2019 05 02.
Artículo en Inglés | MEDLINE | ID: mdl-31046809

RESUMEN

BACKGROUND: Secukinumab, a fully human immunoglobulin G1-kappa monoclonal antibody that directly inhibits interleukin (IL)-17A, has been shown to have robust efficacy in the treatment of moderate-to-severe psoriasis (PsO), psoriatic arthritis (PsA), and ankylosing spondylitis (AS) demonstrating a rapid onset of action and sustained long-term clinical responses with a consistently favorable safety profile in multiple Phase 2 and 3 trials. Here, we report longer-term pooled safety and tolerability data for secukinumab across three indications (up to 5 years of treatment in PsO and PsA; up to 4 years in AS). METHODS: The integrated clinical trial safety dataset included data pooled from 21 randomized controlled clinical trials of secukinumab 300 or 150 or 75 mg in PsO (14 Phase 3 trials and 1 Phase 4 trial), PsA (3 Phase 3 trials), and AS (3 Phase 3 trials), along with post-marketing safety surveillance data with a cut-off date of June 25, 2017. Adverse events (AEs) were reported as exposure-adjusted incident rates (EAIRs) per 100 patient-years. Analyses included all patients who received ≥ 1 dose of secukinumab. RESULTS: A total of 5181, 1380, and 794 patients from PsO, PsA, and AS clinical trials representing secukinumab exposures of 10,416.9, 3866.9, and 1943.1 patient-years, respectively, and post-marketing data from patients with a cumulative exposure to secukinumab of ~ 96,054 patient-years were included in the analysis. The most frequent AE was upper respiratory tract infection. EAIRs across PsO, PsA, and AS indications were generally low for serious infections (1.4, 1.9, and 1.2, respectively), Candida infections (2.2, 1.5, and 0.7, respectively), inflammatory bowel disease (0.01, 0.05, and 0.1, respectively), and major adverse cardiac events (0.3, 0.4, and 0.6, respectively). No cases of tuberculosis reactivation were reported. The incidence of treatment-emergent anti-drug antibodies was low with secukinumab across all studies, with no discernible loss of efficacy, unexpected alterations in pharmacokinetics, or association with immunogenicity-related AEs. CONCLUSIONS: Secukinumab demonstrated a favorable safety profile over long-term treatment in patients with PsO, PsA, and AS. This comprehensive assessment demonstrated that the safety profile of secukinumab was consistent with previous reports in patients with PsO, PsA, and AS, supporting its long-term use in these chronic conditions.


Asunto(s)
Anticuerpos Monoclonales Humanizados/uso terapéutico , Artritis Psoriásica/tratamiento farmacológico , Vigilancia de Productos Comercializados/métodos , Ensayos Clínicos Controlados Aleatorios como Asunto/métodos , Índice de Severidad de la Enfermedad , Espondilitis Anquilosante/tratamiento farmacológico , Anticuerpos Monoclonales Humanizados/efectos adversos , Artritis Psoriásica/diagnóstico , Ensayos Clínicos Fase III como Asunto/métodos , Ensayos Clínicos Fase IV como Asunto/métodos , Humanos , Vigilancia de Productos Comercializados/tendencias , Psoriasis/diagnóstico , Psoriasis/tratamiento farmacológico , Espondilitis Anquilosante/diagnóstico , Factores de Tiempo
14.
J Comp Pathol ; 160: 15-22, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29729717

RESUMEN

The relationship between inflammatory cells and tumour biology has been defined in many human intracranial neoplasms, but it is relatively poorly characterized in veterinary medicine. The aim of this study was to define the immune cell infiltration in cases of feline glioma and its possible association with tumour morphology and type. A retrospective search identified 18 gliomas that met inclusion criteria. Tumours were subjected to immunohistochemistry (IHC) for CD3, CD20, Iba1, MAC387 and factor VIII-related antigen. For each antibody, the number of labelled cells was counted in 10 high-power (×400) fields and a cumulative score for each antibody was generated. Intratumoural and peritumoural CD3+ T lymphocytes were observed in all cases and occurred primarily within perivascular spaces and rarely around areas of necrosis or leptomeningeal spread. Perivascular CD20+ B lymphocytes were detected in 12/18 (67%) cases and occurred within and around tumours and near areas of leptomeningeal spread. MAC387 immunoreactivity highlighted intravascular monocytes in 9/18 (50%) cases, but failed to highlight tumour-associated macrophages. Intratumoural and peritumoural Iba1 immunoreactivity was observed in all cases, with increased overall intensity around areas of necrosis and leptomeningeal spread. Intratumoural and peritumoural factor VIII-related antigen immunoreactivity was also detected in all cases and was concentrated in areas of microvascular proliferation and necrosis. No significant associations were found between IHC scores for immune cells (i.e. lymphocytes and macrophages) and tumour morphology and type. Average factor VIII reactivity was higher in astrocytomas than oligodendrogliomas (P = 0.003).


Asunto(s)
Neoplasias Encefálicas/veterinaria , Enfermedades de los Gatos/inmunología , Glioma/veterinaria , Inmunohistoquímica/métodos , Microambiente Tumoral/inmunología , Animales , Enfermedades de los Gatos/patología , Gatos , Femenino , Masculino , Estudios Retrospectivos
16.
J Vet Intern Med ; 31(3): 778-783, 2017 May.
Artículo en Inglés | MEDLINE | ID: mdl-28295598

RESUMEN

BACKGROUND: Grading schemes for the assessment of hepatic fibrosis and necroinflammatory activity in humans previously have been applied to dogs with chronic hepatitis. Interobserver agreement is a desirable characteristic for any histological scoring scheme. HYPOTHESIS/OBJECTIVES: To assess interobserver agreement associated with pathologists using a previously published histological scoring scheme to assess hepatic fibrosis and necroinflammatory activity in dogs and to compare fibrosis scores assigned to serial sections stained with hematoxylin & eosin (H&E) and picrosirius red. ANIMALS: Histological sections of liver from 50 dogs with variable degrees of hepatic fibrosis and necroinflammatory activity were selected from institutional tissue archives. METHODS: Six board-certified veterinary anatomic pathologists assigned fibrosis and necroinflammatory activity scores to the histological sections. The multiuser kappa statistic was calculated to assess interobserver agreement. Fibrosis stage assigned to serial sections stained with picrosirius red and H&E was compared using the Wilcoxon signed-rank test. RESULTS: Multiuser kappa statistics for assessment of fibrosis and necroinflammatory activity from H&E-stained sections were 0.35 and 0.16, respectively. There was no difference in median fibrosis scores assigned to serial section stained with H&E and picrosirius red (P = .248). CONCLUSIONS AND CLINICAL IMPORTANCE: There was fair interobserver agreement when pathologists assessed fibrosis and poor agreement when they assessed necroinflammatory activity. This suboptimal agreement must be taken into account by clinicians making decisions based on histology reports of the liver and in the design of studies evaluating these findings. To decrease this variability, ideally >1 pathologist should evaluate each section.


Asunto(s)
Enfermedades de los Perros/patología , Hígado/patología , Variaciones Dependientes del Observador , Animales , Perros , Fibrosis , Hepatitis Animal/patología , Humanos , Patología Veterinaria/normas , Patología Veterinaria/estadística & datos numéricos
17.
Arthritis Care Res (Hoboken) ; 69(7): 1020-1029, 2017 07.
Artículo en Inglés | MEDLINE | ID: mdl-28235249

RESUMEN

OBJECTIVE: Secukinumab improved the signs and symptoms of ankylosing spondylitis (AS) over 52 weeks in the phase III MEASURE 2 study. Here, we report longer-term (104 weeks) efficacy and safety results. METHODS: Patients with active AS were randomized to subcutaneous secukinumab 150 mg, 75 mg, or placebo at baseline; weeks 1, 2, and 3; and every 4 weeks from week 4. The primary end point was the Assessment of SpondyloArthritis international Society criteria for 20% improvement (ASAS20) response rate at week 16. Other end points included ASAS40, high-sensitivity C-reactive protein, ASAS5/6, Bath Ankylosing Spondylitis Disease Activity Index, Short Form 36 health survey physical component summary, ASAS partial remission, EuroQol 5-domain measure, and Functional Assessment of Chronic Illness Therapy fatigue subscale. End points were assessed through week 104, with multiple imputation for binary variables and a mixed-effects model repeated measures for continuous variables. RESULTS: Of 219 randomized patients, 60 of 72 (83.3%) and 57 of 73 (78.1%) patients completed 104 weeks of treatment with secukinumab 150 mg and 75 mg, respectively; ASAS20/ASAS40 response rates at week 104 were 71.5% and 47.5% with both secukinumab doses, respectively. Clinical improvements with secukinumab were sustained through week 104 across all secondary end points. Across the entire treatment period (mean secukinumab exposure 735.6 days), exposure-adjusted incidence rates for serious infections and infestations, Crohn's disease, malignant or unspecified tumors, and major adverse cardiac events with secukinumab were 1.2, 0.7, 0.5, and 0.7 per 100 patient-years, respectively. No cases of tuberculosis reactivation, opportunistic infections, or suicidal ideation were reported. CONCLUSION: Secukinumab provided sustained improvement through 2 years in the signs and symptoms of AS, with a safety profile consistent with previous reports.


Asunto(s)
Anticuerpos Monoclonales/administración & dosificación , Espondilitis Anquilosante/diagnóstico , Espondilitis Anquilosante/tratamiento farmacológico , Adulto , Anticuerpos Monoclonales Humanizados , Método Doble Ciego , Femenino , Humanos , Inyecciones Subcutáneas , Masculino , Persona de Mediana Edad , Factores de Tiempo , Resultado del Tratamiento
18.
Am J Epidemiol ; 184(1): 33-47, 2016 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-27283146

RESUMEN

Obesity is a major health problem in the United States and a growing concern among members of the military. Posttraumatic stress disorder (PTSD) has been associated with overweight and obesity and may increase the risk of those conditions among military service members. Disordered eating behaviors have also been associated with PTSD and weight gain. However, eating disorders remain understudied in military samples. We investigated longitudinal associations among PTSD, disordered eating, and weight gain in the Millennium Cohort Study, which includes a nationally representative sample of male (n = 27,741) and female (n = 6,196) service members. PTSD at baseline (time 1; 2001-2003) was associated with disordered eating behaviors at time 2 (2004-2006), as well as weight change from time 2 to time 3 (2007-2008). Structural equation modeling results revealed that the association between PTSD and weight change from time 2 to time 3 was mediated by disordered eating symptoms. The association between PTSD and weight gain resulting from compensatory behaviors (vomiting, laxative use, fasting, overexercise) was significant for white participants only and for men but not women. PTSD was both directly and indirectly (through disordered eating) associated with weight change. These results highlight potentially important demographic differences in these associations and emphasize the need for further investigation of eating disorders in military service members.


Asunto(s)
Trastornos de Alimentación y de la Ingestión de Alimentos/complicaciones , Personal Militar , Sobrepeso/etiología , Trastornos por Estrés Postraumático/complicaciones , Aumento de Peso , Adulto , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores Sexuales , Trastornos por Estrés Postraumático/fisiopatología , Estados Unidos
19.
Neuroscience ; 320: 57-68, 2016 Apr 21.
Artículo en Inglés | MEDLINE | ID: mdl-26844388

RESUMEN

cAMP response-element binding protein (CREB)-dependent genes are differentially expressed in brains of temporal lobe epilepsy (TLE) patients and also in animal models of TLE. Previous studies have demonstrated the importance of CREB regulated transcription in TLE. However, the role of the key regulator of CREB activity, CREB-regulated transcription coactivator 1 (CRTC1), has not been explored in epilepsy. In the present study the pilocarpine-induced status epilepticus (SE) model of TLE was used to study the regulation of CRTC1 during and following SE. Nuclear translocation of CRTC1 is critical for its transcriptional activity, and dephosphorylation at serine 151 residue via calcineurin phosphatase regulates cytoplasmic to nuclear transit of CRTC1. Here, we examined the localization and phosphorylation (Ser151) of CRTC1 in SE-induced rat hippocampus at two different time points after SE onset. One hour after SE onset, we found that CRTC1 translocates to the nucleus of CA1 neurons but not CA3 or dentate granule neurons. We further found that this CRTC1 nuclear localization is independent of Ser151 dephosphorylation since we did not detect any difference in dephosphorylation of Ser151 between control and SE animals at this time point. In contrast, 48 h after SE CRTC1 shows increased nuclear localization in the dentate gyrus (DG) of the SE-induced rats. At 48 h after SE, FK506 treatment blocked CRTC1 nuclear localization and dephosphorylation of Ser151. Our results provide evidence that CREB cofactor CRTC1 translocates into the nucleus of a distinct subset of hippocampal neurons during and following SE and this translocalization is regulated by calcineurin at a later time point following SE. Nuclear CRTC1 can bind to CREB possibly altering transcription during epileptogenesis.


Asunto(s)
Proteína de Unión a Elemento de Respuesta al AMP Cíclico/metabolismo , Epilepsia del Lóbulo Temporal/metabolismo , Hipocampo/metabolismo , Estado Epiléptico/metabolismo , Factores de Transcripción/metabolismo , Transporte Activo de Núcleo Celular , Animales , Convulsivantes/toxicidad , Modelos Animales de Enfermedad , Técnica del Anticuerpo Fluorescente , Immunoblotting , Masculino , Pilocarpina/toxicidad , Ratas , Ratas Sprague-Dawley , Reacción en Cadena en Tiempo Real de la Polimerasa
20.
J Med Primatol ; 45(2): 85-91, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26899153

RESUMEN

BACKGROUND: Pancreatic neuroendocrine tumors (PNETs) are rare in nonhuman primates and in humans. METHODS: Twenty-one PNETs from twelve female baboons (Papio spp.) from the Southwest National Primate Research Center were evaluated using histopathology and immunohistochemistry. RESULTS: Histologically, all tumors were benign and had neuroendocrine packeting. Immunohistochemical staining for synaptophysin and chromogranin was positive in all tumors evaluated (17/17). Insulin was positive in 16 of 21 tumors. Somatostatin was positive in 9 of 20 tumors. Multifocal staining for glucagon and pancreatic polypeptide was evident in a minority of tumors (6/20 and 2/17, respectively). Gastrin and vasoactive intestinal peptide were negative in all tumors evaluated. Nine tumors expressed more than one hormone marker. CONCLUSIONS: This is the first detailed pathologic study of pancreatic endocrine tumors in the baboon. The findings suggest that these tumors are generally benign and have similar morphologic and immunohistochemical features as those described in people, including the ability to express multiple hormones.


Asunto(s)
Enfermedades de los Monos/patología , Tumores Neuroendocrinos/veterinaria , Neoplasias Pancreáticas/veterinaria , Papio , Animales , Femenino , Inmunohistoquímica/veterinaria , Tumores Neuroendocrinos/química , Tumores Neuroendocrinos/patología , Neoplasias Pancreáticas/química , Neoplasias Pancreáticas/patología
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