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Cancer Immunology Research Jul 2024CTL recognition of non-mutated tumor-associated antigens (TAA), present on cancer cells but also in healthy tissues, is an important element of cancer immunity, but the...
CTL recognition of non-mutated tumor-associated antigens (TAA), present on cancer cells but also in healthy tissues, is an important element of cancer immunity, but the mechanism of its selectivity for cancer cells and opportunities for its enhancement remain elusive. In this study, we found that CTL expression of the NK receptors (NKR) DNAM-1 and NKG2D was associated with the effector status of CD8+ tumor-infiltrating lymphocytes (TIL) and long-term survival of melanoma patients. Using MART-1 and NY-ESO-1 as model TAAs, we demonstrated that DNAM-1 and NKG2D regulate T-cell receptor (TCR) functional avidity and set the threshold for TCR activation of human TAA-specific CTLs. Superior costimulatory effects of DNAM-1 over CD28 involved enhanced TCR signaling, CTL killer function and polyfunctionality. Double transduction of human CTLs with TAA-specific TCR and NKRs resulted in strongly enhanced antigen sensitivity, without a reduction in the antigen specificity and selectivity of killer function. In addition, the elevation of NKR-Ligand expression on cancer cells by chemotherapy also increased CTL recognition of cancer cells expressing low levels of TAA. Our data help to explain the ability of self-antigens to mediate tumor rejection in the absence of autoimmunity and support the development of dual-targeting adoptive T cell therapies that use NKRs to enhance the potency and selectivity of recognition of TAA-expressing cancer cells.
PubMed: 38949179
DOI: 10.1158/2326-6066.CIR-24-0061 -
International Wound Journal Jul 2024We investigated nurses' experiences of hospital-acquired pressure injury (PI) prevention in acute care services to better understand how PI prevention may be optimised....
Nurses' experiences of hospital-acquired pressure injury prevention in acute healthcare services in Victoria, Australia: A qualitative study using the Theoretical Domains Framework.
We investigated nurses' experiences of hospital-acquired pressure injury (PI) prevention in acute care services to better understand how PI prevention may be optimised. We used the Theoretical Domains Framework to systematically identify barriers and enablers to evidence-based preventive practices as required by the International Guideline. This study was one element of a complex capacity building project on PI surveillance and prevention within the acute health service partners of Monash Partners Academic Health Science Centre, an accredited academic health partnership located in Melbourne, Australia. We adopted a qualitative descriptive design. We interviewed 32 nurses that provided care in intensive care units, general wards and COVID wards of four acute care services. Nurses were recruited from four large acute care services (three public, one private) located in Melbourne. Most of them worked with patients who were at high risk of hospital-acquired PI on a daily basis. Interview transcripts were coded and analysed using thematic analysis guided by the Theoretical Domains Framework. The domains referred to most frequently by all participants included: Knowledge, Skills, Social/Professional Role and Identity, Beliefs about Capabilities, and Environmental Context and Resources. The key barriers discussed by nurses included gaps in nurses' knowledge and skills related to identification and staging of PI, heavy nursing workload and inadequate staffing levels, stigma and self-blame related to PI identification, and exacerbating impacts of the COVID-19 pandemic. Main facilitators discussed were training programmes, nursing audits and feedback, and teamwork. Participants suggested improvements including accessible and tailored training, visual reminders, and addressing heavy workloads and emotional barriers nurses face. Investing in tailored training initiatives to improve nurses' knowledge and organisational changes to address low level staffing and heavy workloads are urgently needed to support nurses in delivering optimal care and preventing hospital-acquired PI.
Topics: Humans; Pressure Ulcer; Qualitative Research; Victoria; Male; Female; Adult; COVID-19; Nursing Staff, Hospital; Middle Aged; Attitude of Health Personnel; Iatrogenic Disease
PubMed: 38949176
DOI: 10.1111/iwj.14956 -
Journal of Cardiovascular Medicine... Aug 2024To systematically evaluate the effectiveness of mobile health (mHealth) interventions on medication adherence in patients with heart failure. (Meta-Analysis)
Meta-Analysis
AIMS
To systematically evaluate the effectiveness of mobile health (mHealth) interventions on medication adherence in patients with heart failure.
METHODS
The literature search was conducted in PubMed, Web of Science, the Cochrane Library databases, Embase, China National Knowledge Infrastructure (CNKI), Wanfang Database and China Scientific Journal Database (VIP). The retrieval period was from the establishment of the database to May 2023. The included studies were trials to explore the effectiveness of mHealth interventions on medication adherence in patients with heart failure. Cochrane collaboration's tool was used for assessing risk of bias in randomized controlled trials. Stata 17.0 software was used to conduct data analysis. Continuous data were expressed as standard mean differences, and dichotomous data were expressed as relative risks with 95% confidence intervals (CIs).
RESULTS
A total of 13 studies and 2534 participants were included. One study was rated as Grade A, and the other 12 studies were Grade B. The results of meta-analysis indicate that mHealth interventions are effective in improving medication adherence [relative risk (RR) = 1.26, 95% CI 1.10-1.44, P < 0.05 and standard mean difference = 0.80, 95% CI 0.44-1.15, P < 0.05], and reducing readmission rates (RR = 0.63, 95% CI 0.53-0.76, P < 0.05) and mortality (RR = 0.63, 95% CI 0.43-0.94, P < 0.05) of patients with heart failure.
CONCLUSION
mHealth interventions are beneficial to improve medication adherence in patients with heart failure, and could effectively reduce the readmission rates and mortality of patients in the studies. There is a need to continuously improve the professional abilities of intervention personnel, carry out teamwork, and extend intervention and follow-up time. Convenient, fast and low-cost mobile medical devices should be adopted to reduce the cost of medical treatment. Scientific and reasonable intervention content will be formulated according to evidence-based guidelines and theoretical basis to enhance patients' ability at self-management and understanding of heart failure knowledge.
Topics: Humans; Heart Failure; Telemedicine; Medication Adherence; Female; Male; Middle Aged; Aged; Treatment Outcome; Randomized Controlled Trials as Topic
PubMed: 38949146
DOI: 10.2459/JCM.0000000000001631 -
Journal of Cardiovascular Medicine... Jun 2024To systematically evaluate the effectiveness of mobile health (mHealth) interventions on medication adherence in patients with heart failure.
AIMS
To systematically evaluate the effectiveness of mobile health (mHealth) interventions on medication adherence in patients with heart failure.
METHODS
The literature search was conducted in PubMed, Web of Science, the Cochrane Library databases, Embase, China National Knowledge Infrastructure (CNKI), Wanfang Database and China Scientific Journal Database (VIP). The retrieval period was from the establishment of the database to May 2023. The included studies were trials to explore the effectiveness of mHealth interventions on medication adherence in patients with heart failure. Cochrane collaboration's tool was used for assessing risk of bias in randomized controlled trials. Stata 17.0 software was used to conduct data analysis. Continuous data were expressed as standard mean differences, and dichotomous data were expressed as relative risks with 95% confidence intervals (CIs).
RESULTS
A total of 13 studies and 2534 participants were included. One study was rated as Grade A, and the other 12 studies were Grade B. The results of meta-analysis indicate that mHealth interventions are effective in improving medication adherence [relative risk (RR) = 1.26, 95% CI 1.10-1.44, P < 0.05 and standard mean difference = 0.80, 95% CI 0.44-1.15, P < 0.05], and reducing readmission rates (RR = 0.63, 95% CI 0.53-0.76, P < 0.05) and mortality (RR = 0.63, 95% CI 0.43-0.94, P < 0.05) of patients with heart failure.
CONCLUSION
mHealth interventions are beneficial to improve medication adherence in patients with heart failure, and could effectively reduce the readmission rates and mortality of patients in the studies. There is a need to continuously improve the professional abilities of intervention personnel, carry out teamwork, and extend intervention and follow-up time. Convenient, fast and low-cost mobile medical devices should be adopted to reduce the cost of medical treatment. Scientific and reasonable intervention content will be formulated according to evidence-based guidelines and theoretical basis to enhance patients' ability at self-management and understanding of heart failure knowledge.
PubMed: 38949124
DOI: 10.2459/JCM.0000000000001631 -
ACS Applied Materials & Interfaces Jul 2024There is a growing demand for research and development of advanced energy storage devices with high energy density utilizing earth-abundant metal anodes such as sodium...
There is a growing demand for research and development of advanced energy storage devices with high energy density utilizing earth-abundant metal anodes such as sodium metal. Tellurium, a member of the chalcogen group, stands out as a promising cathode material due to its remarkable volumetric capacity, comparable to sulfur, and significantly high electrical conductivity. However, critical issues arise from soluble sodium polytellurides, leading to the shuttle effect. This phenomenon can result in the loss of active materials, self-discharge, and anode instability. Here, we introduce polypyrrole-coated tellurium nanotubes as the cathode materials, where polypyrrole plays a crucial role in preventing the dissolution of polytellurides, as confirmed through optical microscopy. The polypyrrole-coated tellurium nanotubes exhibited an outstanding rate performance and long cycle stability in sodium-tellurium batteries. These research findings are anticipated to bolster the viability of polypyrrole-coated tellurium nanotubes as promising cathode materials, making a substantial contribution to the commercialization of sodium-ion battery technology.
PubMed: 38949109
DOI: 10.1021/acsami.4c03576 -
Colorectal Disease : the Official... Jul 2024Follow-up for colorectal cancer (CRC) necessitates regular monitoring of carcinoembryonic antigen (CEA) at the hospital. Capillary home-based blood collection, including...
Feasibility, reliability and satisfaction of (automated) capillary carcinoembryonic antigen measurements for future home-based blood sampling: the prospective CASA-I study.
AIM
Follow-up for colorectal cancer (CRC) necessitates regular monitoring of carcinoembryonic antigen (CEA) at the hospital. Capillary home-based blood collection, including minimally invasive techniques such as lancet sampling or an automated upper arm device (TAP-II), has the potential to replace a significant portion of hospital-based blood sampling, thereby enhancing self-reliance and quality of life. The objectives of this study were to assess the feasibility, reliability and preference for CEA blood collection.
METHODS
Baseline venous and capillary (by lancet and TAP-II) blood samples were collected from 102 participants, including 20 CRC patients with elevated CEA levels, 60 CRC patients undergoing postoperative outpatient monitoring and 20 healthy volunteers. The second group performed capillary blood collections at home on two consecutive follow-up appointments and subsequently sent them to the hospital. Satisfaction was assessed via patient reported outcome measures on pain, burden, ease of use and preference.
RESULTS
The Pearson's correlation test of all usable samples resulted in a linear coefficient of 0.998 (95% CI 0.997-0.998) for the TAP-II method and 0.997 (95% CI 0.996-0.998) for the lancet method, both compared to venipuncture. Following the initial blood collection, 86% of the participants (n = 102) favoured the TAP-II, rating it as the least painful and burdensome option. After two home-based blood samples, the preference for the TAP-II method persisted, with 64% of the patients endorsing its use.
CONCLUSION
This study demonstrated the feasibility of home-based capillary sampling of CEA. The TAP-II blood collection is the most reliable method and is preferred by patients over venipuncture and lancet sampling.
PubMed: 38949106
DOI: 10.1111/codi.17085 -
Small (Weinheim An Der Bergstrasse,... Jul 2024Azobenzene, while relevant, has faced constraints in biological system applications due to its suboptimal quantum yield and short-wavelength emission. This study...
Azobenzene, while relevant, has faced constraints in biological system applications due to its suboptimal quantum yield and short-wavelength emission. This study presents a pioneering strategy for fabricating organic microdots by coupling foldamer-linked azobenzene, resulting in robust fluorescence intensity and stability, especially in aggregated states, thereby showing promise for bioimaging applications. Comprehensive experimental and computational examinations elucidate the mechanisms underpinning enhanced photostability and fluorescence efficacy. In vitro and in vivo evaluations disclose that the external layer of cis-azo-foldamer microdots performs a self-sacrificial function during photo-bleaching. Consequently, these red-fluorescent microdots demonstrate extraordinary structural and photochemical stabilities over extended periods. The conjugation of a β-peptide foldamer to the azobenzene chromophore through a glycine linker instigates a blue-shifted and amplified π-n transition. Molecular dynamics simulations reveal that the aggregated state of cis-azo-foldamers fortifies the stability of cis isomers, thereby augmenting fluorescence efficiency. This investigation furnishes crucial insights into conceptualizing novel, biologically inspired materials, promising stable and enduring imaging applications, and carries implications for diverse arenas such as medical diagnostics, drug delivery, and sensing technologies.
PubMed: 38949050
DOI: 10.1002/smll.202401480 -
International Journal of Audiology Jul 2024Describe how the Revised Hearing Handicap Inventory (RHHI) changes over time and determine associated factors.
OBJECTIVE
Describe how the Revised Hearing Handicap Inventory (RHHI) changes over time and determine associated factors.
DESIGN
Data were from a community-based cohort study. Linear regression models were used to estimate mean baseline and final RHHI scores and change (final baseline score). Logistic regression models were used to determine factors associated with substantial RHHI change, defined as ±6 points. Factors included baseline age, sex, race, hearing aid use, and baseline pure-tone average (PTA; 0.5, 1.0, 2.0, 4.0 kHz, worse ear).
STUDY SAMPLE
This study included 583 participants (mean age: 66.4 [SD 9.1] years; 59.9% female; 14.2% Minority race) with a mean follow-up time of 7.6 (SD 4.9) years.
RESULTS
Baseline and final RHHI scores were 7.9 and 9.2 points, corresponding to an average 1.3-point increase in hearing difficulty over time. Most participants (65.4%) did not show substantial RHHI change, whereas 21.4% and 13.2% experienced substantial increase and decrease, respectively. In separate multivariable models, PTA and hearing aid use were associated with substantial increase in hearing difficulty, and PTA was associated with substantial decrease.
CONCLUSIONS
The average RHHI change was relatively small. Hearing aid use and PTA were associated with RHHI change.
PubMed: 38949044
DOI: 10.1080/14992027.2024.2364197 -
Journal of Mental Health (Abingdon,... Jul 2024Brief motivational coaching, integrated into health care; seems promising to address physical inactivity of people with serious mental illness (SMI).
Self-determined motivational health coaching ('SAMI') during outpatient treatment to promote physical activity of people with serious mental illness: a pilot controlled trial.
BACKGROUND
Brief motivational coaching, integrated into health care; seems promising to address physical inactivity of people with serious mental illness (SMI).
AIMS
To test the impact of a self-determined health coaching approach (the "SAMI" intervention) during outpatient mental health treatment on moderate-to-vigorous physical activity (MVPA) of people with SMI.
METHODS
Adults (mean age = 41.9, SD = 10.9) with an ICD-10 diagnosis of mental illness were semi-randomized to the SAMI-intervention group (IG) or control group (CG). The IG received 30 minutes of health coaching based on the self-determination theory (SDT). MVPA and sedentary time (ST) were measured with the International Physical Activity Questionnaire - short form (IPAQ-SF) and symptoms of mental illness with the Brief Symptom Inventory (BSI-18), each at baseline and follow-up (3-4 months). Differences in primary (MVPA) and secondary (ST, BSI-18) outcomes were evaluated using negative binomial regressions and general linear models.
RESULTS
In the IG ( = 30), MVPA increased from 278 (interquartile range [IQR] = 175-551) to 435 (IQR = 161-675) min/week compared to a decrease from 250 (IQR = 180-518) to 155 (IQR = 0-383) min/week in the CG ( = 26; adjusted relative difference at follow-up: Incidence Rate Ratio [IRR] = 2.14, 95% CI: 1.17-3.93, p = 0.014). There were no statistically significant differences in ST and BSI-18.
CONCLUSIONS
Brief self-determined health coaching during outpatient treatment could increase post-treatment MVPA in people with SMI, potentially up to a clinically relevant level. However, great uncertainty (for all outcomes) weakens the assessment of clinical relevance.
PubMed: 38949040
DOI: 10.1080/09638237.2024.2361230 -
JPMA. the Journal of the Pakistan... Jun 2024Oneirotherapy is a form of psychotherapy that is based on visual imagery and symbolism. In this communication. We discuss the role of oneirotherapy, or using vivid...
Oneirotherapy is a form of psychotherapy that is based on visual imagery and symbolism. In this communication. We discuss the role of oneirotherapy, or using vivid imagery, as adjuvant therapy in obesity care. Oneirotherapy can be used to promote acceptance of, and adherence to, prescribed therapy. It may also help improve quality of life and enhance self-esteem. However, oneirotherapy alone, without following a healthy lifestyle and or taking antiobesity medication, will help manage weight only in one's dreams.
Topics: Humans; Obesity; Overweight; Quality of Life; Self Concept
PubMed: 38949001
DOI: 10.47391/JPMA.24-47