Prevalence and determinants of fatigue in patients with moderate to severe chronic GvHD.
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ABSTRACT:
SUBMITTER: Im A
PROVIDER: S-EPMC7511994 | biostudies-literature | 2016 May
REPOSITORIES: biostudies-literature
Publications
Prevalence and determinants of fatigue in patients with moderate to severe chronic GvHD.
Im A A Mitchell S A SA Steinberg S M SM Curtis L L Berger A A Baird K K Kuzmina Z Z Joe G G Comis L E LE Juckett M M Avila D D Baruffaldi J J Masuch L L Pirsl F F Pavletic S Z SZ
Bone marrow transplantation 20160201 5
Although fatigue is common after allogeneic hematopoietic cell transplantation, little is known about fatigue in patients with chronic GvHD (cGvHD). The aim of this study was to explore factors associated with fatigue in cGvHD. Data were drawn from a sequentially recruited, cross-sectional study of adults with moderate or severe cGvHD (n=263). Respondents were classified as fatigued or not fatigued based on their response to a single item regarding loss of energy from the Lee cGvHD Symptom Scale ...[more]
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Project description:Chronic spontaneous urticaria (CSU), also traditionally called Chronic Idiopathic Urticaria (CIU), is a common dermatosis. Its estimated point prevalence is 0.6 to 1%. CSU is defined by spontaneously occurring short-lived and itching wheal, angioedema or both. The current nomenclature of urticaria endorses the use of a clinical rather than an aetiological classification to recognise that a percentage of patients with CSU have an autoimmune rather than idiopathic aetiology. As it happens with other IgE-associated diseases, a better knowledge of urticaria patients requires defining phenotypes. The present knowledge about CSU phenotypes is based on the clinical characteristics, associated comorbidities, the course of the disease and its response to the available effective drugs. But a phenotype is defined as the visible characteristics or traits that are a consequence of the expression of genes as well as the influence of environmental factors. 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An Urticaria Activity Score (UAS) 7 defined moderate to severe CSU, this mean an UAS7 �16 (UAS 7 range from 0 to 42), where the symptom itch showed a value �8. All the patients included remained symptomatic in spite of the treatment with antihistamines. The diagnosis of CSU was based on clinical history data and physical examination. Any active treatment was supplied at the patient at the time where the samples were obtained. Healthy controls were selected from a pool of volunteers. A detailed anamnesis, clinical exploration and basal blood analysis was carried out in order to guarantee that any active disease nor cutaneous nor systemic was present. The CSU patients and the healthy volunteers were submitted to some interventions in order to obtain cutaneous and venous blood samples. Cutaneous biopsies were obtained after local anesthesia using punch biopsy of 4 mm in diameter. Two cutaneous biopsies including skin from an active wheal and one biopsy from non-lesion skin were obtained. 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The second criteria was based in an accurate analysis of the genes up or down regulated and its possible involvement in mast cell biology, wheal pathogenesis, urticaria or allergy. The data base included shows the raw data of the gene-array performed in the available samples of the blood and the tissue of the patients with CSU and the healthy controls included in this study. 61 samples were analyzed from 30 individuals, 20 patients and 10 healthy controls. This Series includes the samples from tissue.
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Objective: The primary purpose of this study was to identify the most relevant genes expressed in the tissue and the blood samples from patients with moderate and severe CSU. The knowledge of the gene profiling differences comparing wheal versus no-lesion skin in selected patients is a real and accurate approach to identify the genes expressed in the wheal developed in patients with CSU. Patients and methods: A total of 20 patients suffering of moderate and severe CSU/CIU and 10 healthy control subjects were included. The setting of the study was the Department of Dermatology and the Department of Pharmacology Clinic at the Hospital del Mar, Institut Mar d'Investigacions Mediques, Barcelona. The sample size is adequate to the exploratory character of the study. Only patients showing active moderate to severe CSU during at least 3 months were included in the study. Patients were selected prospectively. An Urticaria Activity Score (UAS) 7 defined moderate to severe CSU, this mean an UAS7 �16 (UAS 7 range from 0 to 42), where the symptom itch showed a value �8. All the patients included remained symptomatic in spite of the treatment with antihistamines. The diagnosis of CSU was based on clinical history data and physical examination. Any active treatment was supplied at the patient at the time where the samples were obtained. Healthy controls were selected from a pool of volunteers. A detailed anamnesis, clinical exploration and basal blood analysis was carried out in order to guarantee that any active disease nor cutaneous nor systemic was present. The CSU patients and the healthy volunteers were submitted to some interventions in order to obtain cutaneous and venous blood samples. Cutaneous biopsies were obtained after local anesthesia using punch biopsy of 4 mm in diameter. Two cutaneous biopsies including skin from an active wheal and one biopsy from non-lesion skin were obtained. The active wheal chosen for biopsy was obtained from the trunk and clinically showed erythema and edema, with a time of evolution of at least of one hour. One of the biopsies taken from the wheal was fixed in formaldehyde and after paraffin inclusion was stained with haematoxilin -eosin, Giemsa and with c-Kit as mast cell marker with the objective to characterize the diagnosis of wheal and describe accurately the characteristics of the inflammatory infiltrate. The second biopsy was immediately prepared for storage prior to be submitted for gene array. Fat and other undesired components that do not belong to the sample were removed before quick-freezing the tissue in liquid nitrogen. Cryopreserved tissue samples were stored at -80°C prior to the gene microarray study. The punch taken over no-lesion skin guarantee that no wheal was present in the previous 72 hours and no other skin alteration was present i.e., desquamation or pigmentation. Venous blood analysis was obtained from the basilic mediana vein in the antecubital fossae and prepared for its storage for gene array analysis. Quality control of RNA samples was performed with the Bioanalyzer 2100 (Agilent Technologies, Palo Alto, CA, USA). Good quality samples with an RNA Integrity Number (RIN) value >6, and also some mildly degraded samples with a RIN value between 4 and 6, were processed following specific protocols. The hybridization procedure was performed according to the Agilent 60-mer oligo microarray processing protocol using the Agilent Gene Expression Hybridization Kit (Agilent Technologies). Based on the results provided from the microarray comparative analysis, we selected a set of genes to be confirmed by Q-PCR. The criteria followed to perform such selection were based in technical aspects that would guarantee gene confirmation. These recommendations include an adjusted P value of 0.05 and a Log fold change of 1 (plus or minor to 1). The second criteria was based in an accurate analysis of the genes up or down regulated and its possible involvement in mast cell biology, wheal pathogenesis, urticaria or allergy. The data base included shows the raw data of the gene-array performed in the available samples of the blood and the tissue of the patients with CSU and the healthy controls included in this study. 61 samples were analyzed from 30 individuals, 20 patients and 10 healthy controls. This Series includes the samples from blood.
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