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Population-based study of pharmacogenetics and pharmacokinetics in Southern African patients with multidrug-resistant tuberculosis (PoPG): a protocol for the Namibian cohort

Por: Boois · L. · Ekandjo · H. · Shavuka · O. · Nepolo · E. · Ndong Sima · C. A. · Oelofse · C. · Uren · C. · Petersen · D. C. · Möller · M. · Wijk · M. · Kellermann · T. · Decloedt · E. · McIlleron · H. · Denti · P. · Claassens · M. M.
Background

Multidrug-resistant tuberculosis (MDR-TB) is an urgent public health challenge in Namibia, with profound socioeconomic consequences. The high burden of both tuberculosis and HIV complicates treatment and underscores the need for optimised drug therapies. Precision medicine, which leverages patient-specific genetic and molecular information, offers promise for improving MDR-TB outcomes. However, its effective application relies on population-specific data, particularly understanding how individuals metabolise tuberculosis drugs and how genetic diversity drives variability in treatment response. Currently, no pharmacokinetic (PK) or pharmacogenetic (PG) data on TB treatment exist for Namibian populations. This gap is particularly concerning, given the country’s genetic diversity, environmental factors and comorbidities that may uniquely influence drug metabolism. This study aims to generate PK and PG data to inform dose optimisation and support personalised treatment strategies for MDR-TB in Namibia. The findings will contribute to improved patient care and inform health system strengthening based on locally relevant evidence.

Methods

This cross-sectional study will consist of 100 Namibian participants with matched human DNA and PK data of MDR-TB cases receiving isoniazid, clofazimine, bedaquiline and the fluoroquinolones (levofloxacin or moxifloxacin). PK sampling will be divided as follows: 30 individuals will undergo intensive PK sampling, while the remaining (n=70) will undergo sparse PK sampling. DNA will be extracted at Stellenbosch University (SU), and samples will be genotyped using the H3Africa microarray. Sequences will be aligned to the human reference genome, hg38 (GRCh38p13), using the freely available Burrows-Wheeler Aligner. A subset of the samples (n=20–30) will undergo whole genome sequencing (WGS) to verify imputation results and identify novel genetic variants potentially affecting PK in this population.

Data analysis

Quality control and variant call format file generation will be performed using the Genome Analysis Toolkit best practices (V.3.5). Intensive and sparse PK data will be pooled for the development of a population PK (popPK) model using a non-linear mixed-effects modelling approach. The popPK model will characterise the relationship between TB drug dose and exposure, including quantifying covariates, including genetic variation, explaining PK variability, providing a foundation for dose optimisation and personalised treatment strategies.

Ethics and dissemination

Ethics approval was obtained from the University of Namibia Human Research Ethics Committee for Health (Ref. SOM18/2024), the Ministry of Health and Social Services (Ref. 22/4/2/3), the SU Health Research Ethics Committee (Ref. N21/11/136) and the University of Cape Town Human Research Ethics Committee (Ref. 500/2022).

Assessment of health-related quality of life, cognitive, physical and psychological impairments in critically ill adults after status epilepticus (POSEIDON 2): protocol for a multicentre longitudinal study

Por: Legriel · S. · Bernard · C. · Sboui · G. · Sigaud · F. · Lascarrou · J.-B. · Mayenco-Cardenal · N. · Chelly · J. · Bruel · C. · Mongardon · N. · Marzouk · M. · Quenot · J.-P. · Hugues · R. · Schnell · D. · Beuret · P. · Bailly · P. · Lesieur · O. · Argaud · L. · Chambon · R. · Jacq · G.
Introduction

Status epilepticus (SE) in adults is a serious neurological emergency that can lead to high morbidity and mortality rates. Although functional outcomes are often assessed using general scoring systems, limited data on health-related quality of life (HRQoL) in patients admitted to intensive care units (ICUs) are still limited. Furthermore, comprehensive evaluations of patient-reported physical, cognitive, mental health and psychological outcomes are lacking in this population. POSEIDON 2 aims to assess HRQoL and cognitive, physical and psychological impairments at 3 and 12 months after ICU discharge following SE and quantify caregiver burden.

Methods and analysis

POSEIDON 2 is a prospective, multicentre, longitudinal study conducted in 19 French ICUs. The study combines data from the SE ICTAL Registry with data from patients who survived admission to the ICU for SE, who will be recruited for the study. The study also includes patient-reported outcome (PRO) data collected 3 (M3) and 12 (M12) months after discharge from the ICU using validated instruments. The Zarit scale will be used to measure the burden on caregivers at M3 and M12. The primary endpoint is the prevalence of overall HRQOL impairment at M3 and M12, as defined by dichotomous scores on the physical and mental components of the 36-Item Short Form Health Survey compared with those of the general population. Secondary endpoints include domain-specific impairments, such as cognitive function, dependence, mental health and patient experiences. The sample size has been calculated based on an estimated prevalence of 75% for HRQoL impairment, with a planned sample size of 140 patients.

Ethics and dissemination

The POSEIDON 2 study protocol received ethical approval from the ethics committee ‘Comité de Protection des Personnes Ouest VI’ on 5 October 2023 (#2023-A01223-42). The study is conducted in accordance with the Declaration of Helsinki, Good Clinical Practice and the regulatory requirements of France. Written informed consent is obtained from participants, who are able to decline participation or withdraw from the study at any time. Findings will be disseminated through publication in peer-reviewed journals and presentations at scientific conferences.

Trial registration number

NCT06100978.

ReFIT study (reversing frailty in transplantation): protocol for a longitudinal study to assess clinical and biomedical changes in frailty through kidney transplantation

Por: Payne · T. · Shaw · A. · Hanjani · L. S. · Homes · R. · Giddens · F. · Ravuri · H. G. · Yap · C. X. · Walsh · J. · Kumar · V. · Garton · F. C. · Rhee · H. · Huang · A. · Francis · R. S. · Reid · N. · McAdams-DeMarco · M. · Gordon · E. · Midwinter · M. · Hubbard · R.
Introduction

Losses of functional reserve across multiple physiological systems have been identified in frail patients, yet the exact aetiology of frailty remains unclear. Although strongly associated with chronological age, frailty often develops at a younger age in patients with organ failure. Frailty is prevalent in patients with kidney failure; however, individuals experience improvements in physical frailty measures following kidney transplantation. This makes younger patients with kidney failure a unique population for studying both the accelerated onset of frailty and its reversal. This research project aims to test the hypothesis that frailty secondary to organ failure and age-related frailty are associated with similar molecular and physiological measures.

Methods and analysis

This longitudinal study will recruit 150 patients in three groups. Group A (kidney transplant recipients aged ≥40 years; n=50) and Group B (patients aged ≥40 years active on the kidney transplant waitlist; n=50) will comprise younger adults with frailty from organ failure. Group C (adults aged ≥65 years (or ≥55 years for Aboriginal and Torres Strait Islander patients); n=50) will comprise older community dwellers. The primary outcome is the Frailty Index (FI). Secondary outcomes include the change in FI over time, and at baseline when considering various clinical metadata, immune parameters, kidney function and nutrition intake which will be measured at baseline and 12-month time points. Longitudinal changes in frailty will be analysed using linear mixed models with multiple testing corrections for false discovery rates.

Endocrine profiles and metabolomics, measures of immune function and microcirculatory dysfunction, will be measured by liquid chromatography-mass spectrometry and/or gas chromatography-mass spectrometry. The gut microbiome will be sequenced via shotgun metagenomics (Illumina NextSeq500, 150 bp paired-end, 3Gbp/sample). Circulating cell-free DNA/mitochondrial DNA will be quantified through droplet digital PCR. Microcirculation will be assessed via sublingual dark field videomicroscopy with glycocalyx markers measured by ELISA.

Ethics and dissemination

This study will be conducted with all stipulations of this protocol, and the conditions of the ethics committee approval. Ethical principles have their origin in the Declaration of Helsinki, all Australian and local regulations and in the spirit of the standard of Good Clinical Practice (as defined by the International Conference on Harmonisation). Organs/tissues will be sourced ethically and will not be sourced from executed prisoners or prisoners of conscience or other vulnerable groups.

Ethics approval was received by the Metro South Health Research Ethics Committee (HREC/2023/QMS/95392) and ratified by the University of Queensland.

Results will be disseminated through peer-reviewed publications, academic conferences, participant newsletters and health organisation collaboration.

Mechanisms of SGLT inhibitor action and physiological mediators: systematic review and protocol for the MOSAIC collaborative meta-analysis

Por: Kugathasan · L. · Nardone · M. · Muskiet · M. · Diaz Martinez · J. P. · Lovblom · L. E. · Orchanian-Cheff · A. · Nielsen · S. · Rotbain · V. · Kazup · A. · Cersosimo · E. · Gullaksen · S. · Vernstrom · L. · van Baar · M. J. B. · van Bommel · E. · Kannenkeril · D. · Scholtes · R. · Hesp
Introduction

Sodium-glucose cotransporter (SGLT) inhibitors have shown substantial benefit in reducing cardiovascular and kidney events across diverse clinical populations, but the underlying physiological mechanisms remain unclear. However, existing mechanistic studies on renal and cardiovascular haemodynamics show variability in design, have limited statistical power and yield inconsistent outcomes, thus limiting the ability to draw generalisable conclusions. To address this gap, we conducted a systematic review and proposed the first meta-analysis to aggregate individual participant-level data from mechanistic studies to identify consistent physiological patterns and enhance understanding of the therapeutic effects of SGLT inhibition.

Methods and analysis

Gold-standard measured glomerular filtration rate (mGFR) was selected as the primary outcome for this systematic review, which aimed to identify all completed mechanistic studies investigating the effects of SGLT inhibition. Electronic databases including Ovid MEDLINE; Ovid Embase; Cochrane Database of Systematic Reviews; and Cochrane Central Register of Controlled Trials were searched using a detailed search strategy. In total, 24 studies (n=1296) were identified. This systematic review was reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Key variables including demographics, medical history, concomitant medications, vital signs, mGFR, renal haemodynamics, urine and plasma biochemistry, tubular sodium handling, echocardiography, cardiac output monitoring, arterial stiffness and fluid volume will be extracted. A one-stage individual participant data meta-analysis under a Bayesian framework will be conducted, using hierarchical models to simultaneously analyse data from all eligible studies. The risk of bias due to missing results will be assessed. Sensitivity analyses and subgroup evaluations will be incorporated to explore sources of heterogeneity and assess robustness of findings.

Ethics and dissemination

Ethics approval was obtained from University Health Network, Toronto, Canada. Findings from the Mechanisms of SGLT Inhibitor Action and Physiological Mediators (MOSAIC) meta-analysis will be published in peer-reviewed journals and results will be disseminated at scientific conferences.

PROSPERO registration number

CRD420251001413.

Transmission dynamics and control of tuberculosis in high-altitude regions: a modelling study in Xizang, China

Por: Li · M. · Zheng · R. · Guo · L. · Wu · Y. · Dong · J. · Jiang · H. · Song · D. · Cui · Z. · Li · C.
Objectives

To estimate tuberculosis (TB) incidence trends in the high-altitude Xizang, China, and to explore the key intervention strategies on achieving the WHO 2030 TB control target.

Design

We developed a susceptible–exposed–infectious–recovered transmission model using routinely reported TB surveillance data from 2004 to 2022. Scenario-based simulations were conducted to project future TB incidence under alternative intervention strategies. Model assumptions are as follows: (1) a stable population, (2) lifelong vaccine-induced immunity, (3) infectiousness of active TB cases, (4) relapse risk after recovery and (5) homogeneous mixing within the population.

Setting

Seven prefectures of Xizang Autonomous Region on the Tibetan Plateau, China.

Participants

An estimated population of approximately 3 million individuals residing in Xizang.

Interventions

We assessed the epidemiological impact of four interventions implemented independently: increasing vaccine efficacy rate, reducing transmission rates of susceptible individuals, decreasing progression rate from latent TB infection to active disease and reducing relapse rate among successfully treated patients, compared with continuation of current control measures.

Results

The estimated basic reproduction number (R0 ) for TB in Xizang was 0.39 (95% CI 0.21 to 0.71) in the absence of additional interventions, which was the highest among all regions of China. Model simulations indicated that all four evaluated interventions were each likely to reduce TB incidence, but only reducing the latent-to-active TB progression had a substantial effect. A 50% reduction in the progression rate was predicted to lower TB incidence from 66.56 (62.00–70.11) to 40.54 (37.15–43.77) cases per 100 000 population, meeting the WHO 2030 TB control target.

Conclusion

Targeted management of individuals with latent TB infection should be strengthened to substantially reduce TB transmission in high-altitude areas.

Psychological Outcomes of Family Members Related to a Loved One's Resuscitation in the Emergency Department: A Cross‐Sectional Study

ABSTRACT

Aims

This study aimed to assess the psychological outcomes of family members of patients who were resuscitated in the Emergency Department (ED) and analyse factors associated with these outcomes.

Design

This study utilised a cross-sectional design

Methods

Data were collected using a self-reported questionnaire sent to family members of patients who had undergone resuscitation in the ED from February 2024 to January 2025. Instruments for data collection included The Impact of Event Scale-Revised (IES-R), the short version of The Depression, Anxiety and Stress Scale–21 items (DASS-21), the Multicultural Quality of Life Index (MQLI) and questions related to demographic variables and the resuscitation event.

Results

A total of 106 family members completed the questionnaire. Of this, 64.2% (n = 68) reported witnessing the resuscitation attempt, and 35.8% (n = 38) did not witness the event. Family members who witnessed the resuscitation displayed more symptoms of post-traumatic stress disorder (PTSD), measured by the IES-R, compared to those who did not witness the event. A statistically significant negative correlation was found between the IES-R and the MQLI scores, indicating that higher PTSD symptoms correlate with lower quality of life (QoL) ratings.

Conclusion

The findings of this study indicated that witnessing the resuscitation of a loved one in the ED is associated with increased PTSD symptoms.

Implications for Health Professionals and Patient Care

Patients' and family members' cultural and religious needs should be acknowledged by the health care providers. Study findings indicate that family members prefer to be with the patient during the patient's resuscitation. However, without adequate support from hospital staff, this experience may cause adverse psychological effects. Strategies to support family members during and after resuscitation should be developed and integrated into the management of in-hospital resuscitation.

Reporting Method

This study followed the STROBE guidelines.

Patient or Public Contribution

No patient or public contribution.

Pregnancy outcomes among women with and without HIV infections who underwent excisional treatment for high-grade cervical intraepithelial neoplasia: a retrospective cohort study in low-resource settings

Por: Amubuomombe · P. P. · Itsura · P. · Tonui · P. K. · Orango · E. O. · Odongo · B. E. · Loehrer · P. J. · Cu-Uvin · S.
Objective

The standard treatment for high-grade squamous intraepithelial lesions is excisional involving the uterine cervix, while surveillance is an acceptable approach for low-grade squamous intraepithelial lesions. There is controversy about excisional treatment on pregnancy outcomes. The objective of this study was to determine pregnancy outcomes in women living with and without HIV who underwent excisional treatment for high-grade cervical intraepithelial lesions.

Design

This retrospective cohort study compared the pregnancy outcomes of women with and without HIV who were or were not treated for cervical intraepithelial lesions. A cohort of 488 women with and without HIV infection who did or did not receive excisional treatment for cervical intraepithelial lesions between 2009 and 2022 was enrolled. Adverse pregnancy outcomes (preterm delivery and pregnancy loss) in women with and without HIV, untreated or treated for cervical dysplasia, were recorded and analysed. The significance of the obtained results was judged at the 5% level.

Study settings

The study was conducted at all Academic Model Providing Access to Healthcare-Kenya satellite sites, which offer cervical cancer screening and treatment for cervical dysplasia in western Kenya. The Moi Teaching and Referral Hospital was also included.

Participants

A cohort of 488 women aged between 20 years and 49 years, with and without HIV, diagnosed and treated for high-grade cervical intraepithelial neoplasia, and those followed up for low-grade cervical intraepithelial neoplasia between 2009 and 2022, were included.

Outcomes measured

The study was interested in adverse pregnancy outcomes, particularly pregnancy loss and preterm delivery following cervical excision treatment for high-grade cervical intraepithelial lesions.

Results

After adjustment for confounding factors, excisional treatment involving the uterine cervix—particularly cold knife conisation—was associated with higher odds of adverse pregnancy outcomes (OR 13.1; 95% CI 1.1 to 137.1; p=0.032). A prior history of adverse pregnancy outcomes was also strongly associated with subsequent adverse outcomes after treatment (OR 37.7; 95% CI 13.8 to 102.7; p

Conclusion

Adverse pregnancy outcomes after excisional treatment of the uterine cervix for high-grade squamous intraepithelial lesions are multifactorial and were associated with cold knife conisation and prior adverse pregnancy outcomes, while maternal HIV infection was not independently associated with adverse outcomes.

Trajectory and influencing factors of swallowing function in adults after orotracheal extubation in an intensive care unit in China: a prospective cohort study

Por: Wang · W. · Wang · S. · Dong · T. · Zhou · Y. · Ma · R.
Objectives

To investigate the trajectories of swallowing function recovery and associated influencing factors in adult patients following orotracheal extubation in the intensive care unit (ICU).

Design

Prospective cohort study.

Setting

Emergency ICU of a tertiary hospital in Shenyang, China.

Participants

A total of 182 adult patients who underwent orotracheal intubation were enrolled between December 2023 and December 2024 using convenience sampling. Among them, 168 patients completed all follow-up assessments, with a loss-to-follow-up rate of 10.1%.

Outcome measures

Swallowing function was assessed using the Standardised Swallowing Assessment (SSA) at 2, 4, 6, 8, 24 and 48 hours after extubation. Latent class growth modelling (LCGM) was used to identify distinct swallowing function trajectories. Unordered multinomial logistic regression was performed to examine factors associated with different trajectory classes.

Results

Among the 168 patients who completed all six assessments, no significant differences in baseline characteristics were observed between patients who completed follow-up and those lost to follow-up (all p>0.05). LCGM identified three distinct swallowing function trajectories: a low-risk group (46.1%), characterised by consistently low SSA scores below the dysfunction threshold (26 points); a rapid recovery group (24.6%), in which SSA scores declined to below 26 points within 24 hours after extubation and a high-risk group (29.3%), characterised by persistently elevated SSA scores above 26 points. Multinomial logistic regression analysis showed that age ≤50 years, absence of spinal cord injury or rib fractures, APACHE II score

Conclusions

Distinct trajectories of swallowing function recovery were observed in adult ICU patients after orotracheal extubation. Several clinical factors were associated with more favourable recovery patterns. These findings may help improve the understanding of heterogeneity in postextubation swallowing function and inform future risk stratification and individualised management strategies.

Ethics and dissemination

Ethics approval and consent to participate in the trial were approved by the Institutional Research Ethics Committee of General Hospital of Northern Theatre, Shenyang, Liaoning province, PR China (Project Number: Y (2023)232). Written informed consent was obtained from all participants. All procedures were conducted in accordance with relevant guidelines and regulations and the Declaration of Helsinki.

Designing an implementation strategy to improve referral from general practice to a National Diabetes Prevention Programme using a Delphi survey with healthcare professionals and the Behaviour Change Wheel

Por: Haseldine · C. · ODonoghue · G. · Kearney · P. M. · Riordan · F. · Humphreys · M. · Kirby · L. · Mc Hugh · S. M.
Objectives

While diabetes prevention programmes (DPPs) effectively reduce the risk of type 2 diabetes, optimising referral to these programmes is challenging. Our prior research (a qualitative study on the pilot of the National Diabetes Prevention Programme (NDPP) and a systematic review) identified a range of barriers and facilitators to referral from healthcare workers’ perspectives. This study aims to gain consensus on the main factors influencing referral to a newly established NDPP and using the Behaviour Change Wheel (BCW) to select behaviour change techniques (BCTs) for an implementation strategy to improve referral to the programme in the future.

Design

A two-round modified online Delphi survey prioritised 17 barriers and facilitators of the referral process, followed by a mapping exercise with the BCW, which guided the identification of techniques to change referral behaviour from general practice.

Setting

The survey took place online with healthcare professionals working in the primary care setting in Ireland (April to June 2024). The NDPP was in the pilot phase and was not available in all areas. This study sought to learn from this pilot phase to inform the referral process, which was not yet fully established.

Participants

Healthcare professionals eligible to refer or involved in referral to the NDPP in Ireland (general practitioners, practice nurses and dietitians delivering the NDPP) took part in the Delphi survey. Recruitment was through a number of gatekeepers, a health service manager and professional groups who shared invitations to participate with eligible healthcare professionals.

Outcome measures

In the Delphi survey round 1, respondents were asked to rate the importance of 17 factors (nine facilitators and eight barriers) influencing referral on a 5-point Likert scale (not important to very high importance) and an open text box captured other suggested important factors. Barriers included limited practical information about the availability of the programme, concerns about workload, competing priorities and concern about patient motivation, the time commitment for patients and referral delays. Facilitators included electronic referral and feedback, promotion of the programme by healthcare professionals and consultation with patients before referral. Consensus was defined as agreement of ≥70% for each factor in the combined categories of high importance/very high importance, low/moderate importance or not important. Factors not reaching consensus after the first round were included in round 2 with any new factors from round 1. Factors that did not reach consensus or reached consensus as not important or of low/moderate importance were excluded. Only factors reaching consensus as being of high importance/very high importance across the two rounds were included in the final prioritised list.

Results

The Delphi survey had 37 responses to round 1 and 23 (62%) responses to round 2. 12 factors reached consensus as being of high/very high importance to improve referral. The 12 factors are mapped to seven intervention functions in the BCW and to nine key BCTs (feedback on the outcome of the behaviour, social support, instruction on how to perform a behaviour, information about the health consequences, information about social and environmental consequences, demonstration of the behaviour, prompts/cues, credible source and restructuring the physical environment). The strategy to improve referrals should include education delivered by educators to referrers, educational materials on the DPP and practical support to facilitate referrals. The health service should continue to provide electronic referrals and electronic prompts to refer could be considered as part of the electronic health record.

Conclusion

This study systematically prioritises factors perceived to influence referral and identifies BCTs to improve referral to an NDPP. The BCTs are a starting point for a strategy to improve referral to DPPs. Further consultation with stakeholders is recommended to discuss the acceptability, feasibility and operationalisation of the BCTs in the Irish setting.

Identification of the Central Symptoms of Multidimensional Frailty Among Older Adults Using the Tilburg Frailty Indicator: A Network Analysis

ABSTRACT

Background

Symptom networks offer a new approach to explore the relationships among various symptoms and provide information for optimising precise symptom management strategies. However, no previous studies have identified the central symptoms of multidimensional frailty.

Design

A cross-sectional study was conducted from December 2023 to March 2024 in China.

Settings and Participants

A total of 933 community-dwelling older adults (aged 60 years or older) in China were recruited via convenience sampling.

Methods

Sociodemographic variables, clinical variables and scores on the Tilburg Frailty Indicator were assessed in all participants. The qgraph package and IsingFit package of R software were applied to construct the symptom network. Three node centrality indices (strength, betweenness and closeness) and the expected influence were calculated to identify the central symptoms of the multidimensional frailty network. All statistical analyses were performed in R.

Results

A total of 933 individuals were surveyed in this study, including 472 (50.6%) females. The median age of all participants was 71.0 years. A total of 408 subjects were assessed as multidimensional frailty. The prevalence of multidimensional frailty was 43.7%. The centrality indices revealed that ‘difficulty in walking’, ‘difficulty in maintaining balance’, and ‘feeling down’ were the symptoms with the largest strength and expected influence values.

Conclusion

This study primarily utilised network analysis to construct a symptom network of multidimensional frailty among community-dwelling older adults. The findings revealed that difficulty in walking, difficulty in maintaining balance, and feeling down were the most central symptoms.

Implications

This study identified the central symptoms of multidimensional frailty in older adults, which may serve as primary intervention targets. Nursing staff could incorporate targeted physical and psychological interventions into person-centred care plans.

Reporting Methods

This study was reported in accordance with the STROBE guidelines.

Patient or Public Contribution

No patient or public contribution was involved in this study.

Feasibility of the MAINTAIN intervention to support independence after a fall for people with dementia: a pilot cluster randomised controlled trial in participants own homes

Por: Greene · L. · Connors · J. · Hulme · C. · Ukoumunne · O. C. · Barber · R. · Bingham · A. · Conroy · S. · Fox · C. · Duff · C. · Goodwin · V. · Gordon · A. L. · Hall · A. J. · Harwood · R. H. · Jackson · T. · Litherland · R. · Morgan-Trimmer · S. · Parry · S. W. · Sharma · A. · Whale · B. · A
Objectives

To evaluate the feasibility of conducting a full-scale randomised controlled trial to assess the clinical and cost-effectiveness of the MAINTAIN intervention, designed to support recovery and independence following a fall among people living with dementia.

Design

Pilot cluster randomised controlled trial (c-RCT).

Setting

Community-based healthcare services across six UK sites representing primary and secondary care settings.

Participants

31 participant-carer dyads were recruited. Eligibility criteria included a diagnosis of dementia and a recent fall. Exclusion criteria included severe comorbidity precluding participation. The consent rate was 84%, and retention at follow-up was 81%.

Interventions

The MAINTAIN intervention comprised tailored, home-based therapy sessions delivered by trained professionals, focusing on functional recovery, confidence and re-engagement in daily activities, compared with usual care. The intervention was delivered over 12 weeks with booster sessions up to week 24, with the full trial period lasting 28 weeks.

Primary and secondary outcome measures

Feasibility outcomes included recruitment and retention rates, intervention adherence and data completeness for outcome and economic measures. Exploratory outcomes assessed functional performance and quality of life. Feasibility outcomes were assessed at baseline, 12 weeks and 28 weeks.

Results

Recruitment occurred over an 8-month period (September 2023–April 2024) across six UK sites. Most intervention participants (89%) attended at least 60% of planned sessions. Completion rates for outcome and economic data were high, indicating strong acceptability and feasibility of both the intervention and trial procedures.

Conclusions

The pilot c-RCT demonstrated that recruitment, retention and intervention delivery were feasible and well accepted. Findings support progression to a definitive trial to evaluate the effectiveness and cost-effectiveness of the MAINTAIN intervention.

Trial registration number

ISRCTN16413728 (International Standard Randomised Controlled Trial Number registry).

Protocol for a biomarker discovery study to identify correlates of risk for future tuberculosis disease progression in South African children (INTREPID)

Por: Hamilton · M. S. · Derks · I. P. · Kaforou · M. · Dunbar · R. · McNamara · R. P. · Fortune · S. M. · Basu-Roy · R. · van Deventer · A. · Bosch · C. · Dunican · C. · van der Zalm · M. M. · Levin · M. · Schaaf · H. S. · Altin · J. A. · Hesseling · A. C. · Seddon · J. A.
Introduction

Young children and children living with HIV are at high risk of progressing to tuberculosis (TB) disease following Mycobacterium tuberculosis (Mtb) exposure and infection, and also of developing severe forms of disease and TB-related mortality. Identifying children who have very early (sub-clinical) TB disease, prior to progression to clinically apparent TB, would mean that TB preventive treatment (TPT) could be more efficiently targeted to this group. Identifying biomarker changes on drug therapy in children with Mtb infection or very early disease could pave the way for the development of tests that can identify which children have viable bacilli and are therefore at increased risk of disease progression.

Methods and analysis

The INTREPID study will use already collected samples taken from well-phenotyped paediatric cohorts in three clinical studies conducted in South Africa in children Mtb exposure to disease and from children treated for Mtb infection and early TB disease, as well as targeted Mtb antibody analysis. Data on viral co-infections and relevant clinical and epidemiological parameters will be integrated and evaluated to identify the optimal biosignatures that can predict future progression to clinically overt disease in children below 5 years of age, including those living with HIV.

Ethics and dissemination

The study protocol received ethical approval from the Stellenbosch University Health Research Ethics Committee (N23/03/025). The study findings will be disseminated through peer-reviewed publications, scientific conferences and formal presentations to healthcare professionals and to local communities, in collaboration with the Desmond Tutu TB Centre Community Advisory Board.

Absolute Versus Relative Skin Temperature as Early Warning Indicator for Pressure Injury: A Systematic Review and Meta‐Analysis

ABSTRACT

Aims

Skin temperature, including absolute temperature (at bony prominence areas under long-term compression) and relative temperature (the difference between bony prominence and adjacent control area), may serve as early warning indicators for PI. However, the optimal indicator remains unclear. This meta-analysis therefore synthesises evidence on their association with PI risk to identify the best indicator and evaluate its early-warning accuracy.

Design

Systematic review and meta-analysis.

Methods

We included prospective cohort studies of adult patients investigating longitudinal associations between skin temperature and subsequent PI development. We pooled standardised mean difference (SMD) and odds ratios, complemented by summary receiver operating characteristic (SROC) curve analysis. The overall quality of evidence was evaluated using the GRADE method.

Data Sources

We researched PubMed, Embase, CINAHL, Cochrane Library (CENTRAL), Wanfang and CNKI databases from inception to September 25, 2024.

Results

After screening 1354 titles and abstracts, ten studies comprising 1742 participants were included in the final synthesis. No significant difference in absolute temperature (combined SMD) was found between the PI and non-PI groups (seven studies included). In addition, decreased relative temperature (< −0.1°C) was associated with a 16-fold increased likelihood of PI (95% CI 6.38–40.19, I 2 = 79.4%) (three studies included), with the SROC curve analysis showing an AUC of 0.776. According to GRADE, the evidentiary certainty was very low for AT and low for RT.

Conclusions

Relative temperature is significantly related to the risk of PI, supporting its role as a promising early warning indicator. Future studies should establish a standardised measurement protocol to facilitate its clinical application.

Implications for the Profession

Monitoring skin temperature changes holds promise as a non-invasive tool for early warning of PI risk. However, the amount and quality of available evidence limit our confidence in these findings, underscoring the need for further research before a definitive conclusion can be drawn.

Reporting Method

This study followed PRISMA guidelines.

Patient or Public Contribution

No patient or public contribution.

Trial Registration

PROSPERO CRD42024550099

Multicentre international observational study on airway management for anaesthesia: the STARGATE study protocol

Por: Russotto · V. · Sansovini · C. · Muraccini · M. · Collino · F. · Myatra · S. N. · Higgs · A. · Brewster · D. · Curic Radivojevic · R. · Parotto · M. · Karamchandani · K. · Landoni · G. · Sorbello · M. · Monfroglio · M. · Rovescala · G. · Martinelli · P. · Tinelli · O. · Meessen · J. · Be
Introduction

More than 300 million major surgical procedures are carried out under general anaesthesia each year worldwide, and advanced airway management remains one of the leading daily challenges for clinicians. Data from large international prospective cohort studies on adverse events such as cardiovascular collapse, cardiac arrest and severe hypoxaemia during advanced airway management to facilitate anaesthesia are lacking.

Methods and analysis

The International obServational sTudy on AiRway manaGement in operAting room and non-operaTing room anaEsthesia (STARGATE) study will be an international prospective observational cohort study describing the incidence of major adverse events associated with advanced airway management (tracheal intubation or supraglottic airway device placement) for general anaesthesia in the operating and non-operating room for surgery and medical procedures. The secondary aim will be to describe the practice of airway management in a large international cohort. Critically ill patients will be excluded from this study. Data on patients’ characteristics, type of procedure and the adopted airway management strategy, post-procedure adverse events, operator characteristics and in-hospital mortality will be prospectively collected. The study aims to enrol 10 500 patients.

Ethics and dissemination

The study has been approved by the Ethics Committee of the coordinating centre (Comitato Etico Interaziendale AOU San Luigi Gonzaga, N° 25/2023). Each of the participating centres will then seek approval of their local Ethics Committee before enrolment. Data will be disseminated to the scientific community by original articles submitted to international peer-reviewed journals.

Trial registration number

NCT05759299.

"I would like to know what happened to me": coerced and involuntary sterilisation of women seeking asylum in the USA

Por: Blech · A. E. · Baranowski · K. A. · Buehler · N. J. · Stradone · D. · Mendoza · N. · Singer · E.
Objectives

Involuntary sterilisation, the non-consensual medical control of an individual’s fertility, is recognised by the WHO, United Nations High Commissioner for Refugees and UN Women as a serious human rights violation and form of gender-based violence. Survivors of involuntary sterilisation who can prove they were sterilised in their countries of origin have a legal path to asylum in the USA. This study aims to describe the experiences of women seeking asylum in the USA who were subjected to involuntary sterilisation in their countries of origin.

Design

Semistructured, first-person interviews.

Setting

A New York City-based medical human rights programme.

Participants

14 adult women who experienced involuntary sterilisation at an average age of 27 years old in their countries of origin (79% from Honduras, 14% from Guatemala, 7% from Mexico) before applying for protected immigration status in the USA.

Results

Inductive qualitative analysis identified common themes across participants including shared experiences of discrimination due to race/ethnicity, exposure to lifelong violence in women’s home countries, involuntary sterilisation during antepartum and intrapartum care, lack of informed consent, psychological symptoms, delayed discovery, an appreciation for more responsive healthcare in the USA and a desire to have additional children. Of note, only 43% of participants were aware that they had been sterilised and were therefore eligible for asylum when they entered the USA. 71% of participants had been granted protected status in the USA at the time of interview; 29% were engaged in the asylum process.

Conclusions

The results of the study can inform clinicians about the impact of involuntary sterilisation, heighten awareness of this violation in the context of gender-based violence as a nexus for asylum and advance advocacy in healthcare and policy. Results suggest women would benefit from more comprehensive screening for involuntary sterilisation before and during the asylum process, as well as culturally-responsive and trauma-informed support.

Enhancing Paediatric Deterioration Assessment Across Diverse Skin Tones: Insights and Future Directions

ABSTRACT

Background

Skin tone can affect clinical signs and device accuracy in paediatric anaemia and deterioration detection, creating risks of inequity.

Key Issues

Studies show disparities in diagnostic accuracy across different skin tones, supported by community-based evidence.

Recommendations

(1) Build multicenter networks with standardised skin-tone data. (2) Validate devices across varied skin tones. (3) Train clinicians in dark-skin sign recognition. (4) Include equity metrics in paediatric quality indicators.

Conclusion

Reducing skin-tone bias is essential for equitable paediatric care. Collaborative research across diverse regions is needed.

Resveratrol inhibits bladder cancer proliferation by targeting the AURKA/STAT3 axis: From computational analysis to experimental validation

by Chao Feng, Guodong Chen, Yan Shu, Jing Chen, Wenxin Ye, Ligang Ren

Introduction

Given the high recurrence rate of bladder cancer (BCa) and the significant adverse effects associated with conventional treatments, it is urgent to search for new clinical therapeutic targets and safer natural-derived compounds. Resveratrol (Res) has been demonstrated to exhibit cytotoxicity against various tumors. However, the signaling pathways and targets involved in inhibition of BCa cells still need further exploration. This study aims to investigate the mechanism of Res in Bca via suppression of the AURKA/STAT3 axis, providing important theoretical basis for subsequent further researches on Res for treating BCa.

Methods

Differentially expressed genes were identified through bioinformatics methods and the binding sites of resveratrol were also identified. The cell survival rate was detected by the CCK8 method to calculate the concentrations of Res for 30% inhibition and for 50% inhibition. Then, flow cytometry was used to detect the cell cycle and apoptosis after treatment with different concentrations of Res. Immunofluorescence staining was used to detect the effects of Res and MLN8237 on the expression of STAT3. Western blot and qPCR analyses were used to verify the reliability of the effects of Res and MLN8237 on target proteins.

Results

AURKA was identified as the potential target of Res by computational analysis. Further validation through CCK8 assays and flow cytometry demonstrated that Res could inhibit BCa cells and their cell cycle in a time- and dose-dependent manner. Immunofluorescence staining revealed both Res and MLN8237 suppressed STAT3 expression in BCa cells. Additionally, western blot and qPCR analysis confirmed that Res and MLN8237 inhibited the expression of AURKA and known target genes (VEGF, Bcl-2, and Cyclin D1).

Conclusion

Our findings suggest that Res may regulate BCa cell expression through the AURKA/STAT3 axis, providing a theoretical foundation for the structural optimization of Res and the development of multi-target drugs for clinical application.

Pore network modeling of water and gas transport characteristics in synthetic porous media

by Li Dong, Changkun Ma, Wanghai Tao, Quanjiu Wang

The flow characteristics of water and gas are closely linked to pore structure of porous media, which is of critical importance across various scientific and industrial fields. In this study, synthetic porous media with varying grain sizes and porosity were generated, and their corresponding pore structures were characterized using pore network modeling. Furthermore, the intrinsic permeability, water retention curve, water-gas relative permeability and relative gas diffusivity of the synthetic porous media were simulated via pore network modeling. The results demonstrate that the pore networks extracted from images can effectively distinguish pore structural characteristics. Specifically, the mean pore diameter, throat diameter, and throat length were larger in coarse-grained media compared to fine-grained media of the same porosity. In contrast, fine-grained media exhibited higher values for pore number, throat number, and coordination number. Additionally, the distributions of pore diameter, throat diameter, throat length and coordination were found to follow a lognormal distribution. Porous media with coarse grains and larger porosity exhibit greater intrinsic permeability and relative gas diffusivity compared to media composed of finer grains or lower porosity. The water-retention curves were fitting by van Genuchten model, revealing an exponential relationship between parameter α and throat diameter (or pore diameter). But the parameter n did not show a clear trend across various synthetic porous media, which is attributed to the relatively narrow range of pore size distribution. Similarly, for water-gas relative permeability, the critical water saturation did not vary significantly across different porous media. A strong correlation was observed among the pore structural parameters, irrespective of grain shape and size. Both intrinsic permeability and relative gas diffusivity exhibited a power-law relation with the porosity as well as with pore or throat radius. Moreover, the relationship between intrinsic permeability and relative gas diffusivity can be expressed as k = 166.51(Dp/D0)0.98, which provides a direct means of estimating relative gas diffusion from intrinsic permeability directly.
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