1,116 research outputs found
The narrative interview for the assessment of the assisted person: structure, method and data analysis
Background and aim: If it is true that the impact of the symptoms of the disease is differently perceived by each person and that there is an incommunicability of the experiences of suffering, it is equally true that the narration provides an understandable representation, which derives from the network of representations that are part of a personal history. The aim of this study was to offer an in-depth analysis of the “narrative interview” collected during the assessment of a 74 years old diabetic woman. Methods: A case study was conducted by a nurse with advanced expertise in conducting narrative interview. Content analysis and Meaning analysis were performed using a Grounded theory approach and according with Gee’s Poetic Method. Results: The patient after the diagnosis felt disbelief, anger and confusion. The illness forces her to change her life, habits and social role, with high suffering. However she adjusted to this new condition and thanks to her strong and positive attitude and the social support she received, she has succeeded in activating her “post traumatic growth”. Conclusions: A good narrative interview starts long before the interview itself and it requires: a specific training in the use of the instrument; the strengthening of specific skills (e.g. the active listening); the choice of optimal setting and timing for the patient; the ability to offer encouragement in the expression of the subjective experience and to conduct an analysis of the patient’s words with a subjective lens, reflecting the uniqueness of each illness experience
Urea-containing topical formulations
Urea is a well-known moisturiser and keratolytic topical agent. As it is widely used in dermatology, several formulations at different concentrations have been marketed: lotions, creams, foams, ointments, gels and lacquers. Availability of different vehicles and concentration may vary in different countries, but in general products at low, medium and high urea concentration are accessible worldwide. The proper formulation should be chosen according to the disorder to treat, its severity, body areas involved and patients' preference
The impact of the alterations in caring for COVID-19 patients on Compassion Satisfaction and Compassion Fatigue in Italian nurses: a multi method study
During COVID-19 first wave, healthcare professionals were exposed to a major psychological pressure related to uncertainty, a lack of therapies or a vaccine and shortages of healthcare resources. They developed higher levels of Burnout and Compassion Fatigue, and similar levels of Compassion Satisfaction. Aim is evaluating in Italian nurses Compassion Satisfaction and Compassion Fatigue and impacting individual and relational variables. A multi-methods approach was used. Qualitative data were collected through 2 focus group. Quantitative data were collected through a web survey composed by an ad hoc questionnaire developed from the focus group results, the Professional Quality of Life Scale-5 and the Resilience Scale (RS-14). In the qualitative phase 6 categories emerged. From the quantitative analysis the sample reported a moderate level of Compassion Satisfaction, a low level of Burnout and a moderate level of Secondary Traumatic Stress. Compassion Satisfaction had as predictors resilience (β = .501), followed by feeling part of the team (β = .406) and collaboration with colleagues (β = .386). Secondary Traumatic Stress had as predictors the impact of PPE (β = .269), and feeling Covid-related individual sufferance (β = .212). The only predictor of Burnout was resilience (β = -2195). Conclusions: During COVID-19 first wave Italian nurses were exposed to a higher risk of Secondary Traumatic Stress, mainly impacted by frustration, loss of control, loss of possibility to properly care for patients, and personal threat. Relational and team support had a crucial role in sustaining Compassion Satisfaction
Requirement for a Uroplakin 3a-like protein in the development of zebrafish pronephric tubule epithelial cell function, morphogenesis, and polarity
Uroplakin (UP)3a is critical for urinary tract development and function; however, its role in these processes is unknown. We examined the function of the UP3a-like protein Upk3l, which was expressed at the apical surfaces of the epithelial cells that line the pronephric tubules (PTs) of the zebrafish pronephros. Embryos treated with upk3l-targeted morpholinos showed decreased pronephros function, which was attributed to defects in PT epithelial cell morphogenesis and polarization including: loss of an apical brush border and associated phospho-ERM proteins, apical redistribution of the basolateral Na+/K+-ATPase, and altered or diminished expression of the apical polarity complex proteins Prkcz (atypical protein kinase C zeta) and Pard3 (Par3). Upk3l missing its C-terminal cytoplasmic domain or containing mutations in conserved tyrosine or proline residues did not rescue, or only partially rescued the effects of Upk3l depletion. Our studies indicate that Upk3l promotes epithelial polarization and morphogenesis, likely by forming or stimulating interactions with cytoplasmic signaling or polarity proteins, and that defects in this process may underlie the pathology observed in UP3a knockout mice or patients with renal abnormalities that result from altered UP3a expression. © 2012 Mitra et al
DnaA and the timing of chromosome replication in Escherichia coli as a function of growth rate.
RIGHTS : This article is licensed under the BioMed Central licence at http://www.biomedcentral.com/about/license which is similar to the 'Creative Commons Attribution Licence'. In brief you may : copy, distribute, and display the work; make derivative works; or make commercial use of the work - under the following conditions: the original author must be given credit; for any reuse or distribution, it must be made clear to others what the license terms of this work are.BACKGROUND: In Escherichia coli, overlapping rounds of DNA replication allow the bacteria to double in faster times than the time required to copy the genome. The precise timing of initiation of DNA replication is determined by a regulatory circuit that depends on the binding of a critical number of ATP-bound DnaA proteins at the origin of replication, resulting in the melting of the DNA and the assembly of the replication complex. The synthesis of DnaA in the cell is controlled by a growth-rate dependent, negatively autoregulated gene found near the origin of replication. Both the regulatory and initiation activity of DnaA depend on its nucleotide bound state and its availability. RESULTS: In order to investigate the contributions of the different regulatory processes to the timing of initiation of DNA replication at varying growth rates, we formulate a minimal quantitative model of the initiator circuit that includes the key ingredients known to regulate the activity of the DnaA protein. This model describes the average-cell oscillations in DnaA-ATP/DNA during the cell cycle, for varying growth rates. We evaluate the conditions under which this ratio attains the same threshold value at the time of initiation, independently of the growth rate. CONCLUSIONS: We find that a quantitative description of replication initiation by DnaA must rely on the dependency of the basic parameters on growth rate, in order to account for the timing of initiation of DNA replication at different cell doubling times. We isolate two main possible scenarios for this, depending on the roles of DnaA autoregulation and DnaA ATP-hydrolysis regulatory process. One possibility is that the basal rate of regulatory inactivation by ATP hydrolysis must vary with growth rate. Alternatively, some parameters defining promoter activity need to be a function of the growth rate. In either case, the basal rate of gene expression needs to increase with the growth rate, in accordance with the known characteristics of the dnaA promoter. Furthermore, both inactivation and autorepression reduce the amplitude of the cell-cycle oscillations of DnaA-ATP/DNA.Peer Reviewe
The prophenoloxidase system is activated during the tunic inflammatory reaction of Ciona intestinalis
Phenoloxidase (PO) activity was examined in the
tunic tissue of Ciona intestinalis following lipopolysaccharide(CinPO-3) containing the CinPO-2 peptide was identified
in the recent Ciona genome version. Presumably, LPS
stimulated the production and dimerization (120 kDa) of
CinPO-3 (66 kDa). Thus, the activated proPO system
includes several POs that are distinguishable by size and
that are contained and presumably released by tunic
inflammatory cells and hemocytes of the pharynx bars.
(LPS) intratunic injection. Tunic homogenate supernatant
(THS), assayed with the Dopa-MBTH reaction,
displayed Ca2+-independent PO activity that was raised by
LPS and further enhanced by proteases. Specific inhibitors
(tropolone, phenylthiourea, diethylthiocarbamate) supported
the specificity of the reaction. Assay with soybean
trypsin inhibitor showed that, in the tunic, PO activation
with trypsin was not significantly inhibited suggesting that
proteases diverse from serine proteases were involved. In
vivo experiments were carried out by injecting isosmotic
medium or LPS, and THS was assayed for its PO activity.
Analysis of variance of the time-course profiles showed that
LPS was more effective in activating proPO. To disclose
the PO response at the injured site, an assay with Dopa-
MBTH was performed in vitro. Quinones were mainly
contained in the tunic matrix enriched with inflammatory
cells around the injection site. Microscopic observations
and immunohistochemistry with anti-CinPO-2 antibodies
showed granulocytes and unilocular refractile granulocytes
containing PO, whereas few morula cells were stained. In
THS zymograms (SDS-polyacrylamide gel electrophoresis),
PO activity linked to 90-kDa and 120-kDa bands was
observed as an effect of LPS injection, whereas the density
of 170-kDa PO was weak. A third presumptive PO enzym
Author correction: Moderate Nucleoporin 133 deficiency leads to glomerular damage in zebrafish
What if the future of HER2-positive breast cancer patients was written in miRNAs? An exploratory analysis from NeoALTTO study
HER2; MicroRNA; TrastuzumabHER2; MicroARN; TrastuzumabHER2; MicroARN; TrastuzumabBackground
Neoadjuvant therapy with dual HER2 blockade improved pathological complete response (pCR) rate in HER2-positive breast cancer patients. Nevertheless, it would be desirable to identify patients exquisitely responsive to single agent trastuzumab to minimize or avoid overtreatment. Herein, we evaluated the predictive and prognostic value of basal primary tumor miRNA expression profile within the trastuzumab arm of NeoALTTO study (ClinicalTrials.gov Identifier: NCT00553358).
Methods
RNA samples from baseline biopsies were randomized into training (n = 45) and testing (n = 47) sets. After normalization, miRNAs associated with Event-free survival (EFS) and pCR were identified by univariate analysis. Multivariate models were implemented to generate specific signatures which were first confirmed, and then analyzed together with other clinical and pathological variables.
Results
We identified a prognostic signature including hsa-miR-153-3p (HR 1.831, 95% CI: 1.34–2.50) and hsa-miR-219a-5p (HR 0.629, 95% CI: 0.50–0.78). For two additional miRNAs (miR-215-5p and miR-30c-2-3p), we found a statistically significant interaction term with pCR (p.interaction: 0.017 and 0.038, respectively). Besides, a two-miRNA signature was predictive of pCR (hsa-miR-31-3p, OR 0.70, 95% CI: 0.53–0.92, and hsa-miR-382-3p, OR: 1.39, 95% CI: 1.01–1.91). Notably, the performance of this predictive miRNA signature resembled that of the genomic classifiers PAM50 and TRAR, and did not improve when the extended models were fitted.
Conclusion
Analyses of primary tumor tissue miRNAs hold the potential of a parsimonious tool to identify patients with differential clinical outcomes after trastuzumab based neoadjuvant therapy.This work was supported by a Young Investigator Grant (Ricerca Finalizzata Giovani Ricercatori) from the Italian Ministry of Health to M.V. Iorio (grant no. GR-2016-02361750)
Liquid biopsy in hematological malignancies: current and future applications
The assessment of the cancer mutational profile is crucial for patient management, stratification, and therapeutic decisions. At present, in hematological malignancies with a solid mass, such as lymphomas, tumor genomic profiling is generally performed on the tissue biopsy, but the tumor may harbor genetic lesions that are unique to other anatomical compartments. The analysis of circulating tumor DNA (ctDNA) on the liquid biopsy is an emerging approach that allows genotyping and monitoring of the disease during therapy and follow-up. This review presents the different methods for ctDNA analysis and describes the application of liquid biopsy in different hematological malignancies. In diffuse large B-cell lymphoma (DLBCL) and Hodgkin lymphoma (HL), ctDNA analysis on the liquid biopsy recapitulates the mutational profile of the tissue biopsy and can identify mutations otherwise absent on the tissue biopsy. In addition, changes in the ctDNA amount after one or two courses of chemotherapy significantly predict patient outcomes. ctDNA analysis has also been tested in myeloid neoplasms with promising results. In addition to mutational analysis, liquid biopsy also carries potential future applications of ctDNA, including the analysis of ctDNA fragmentation and epigenetic patterns. On these grounds, several clinical trials aiming at incorporating ctDNA analysis for treatment tailoring are currently ongoing in hematological malignancies
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