bluuebunny/crossref_metadata_2025 huggingface dataset:
Trends and social inequalities in self-reported health and activity limitations in France between 2017 and 2021: results from four nationwide representative surveys
Authors: Lahbib Hana , Carcaillon-Bentata Laure , Beltzer Nathalie , Delpierre Cyrille , Coste Joël
Published: July 2024

Background

Like other countries in Europe and around the world, France was hit by the COVID-19 pandemic in 2020, although it had also experienced several social crises since 2017. This study assessed the evolution of self-reported health and activity limitations and explored the dynamics of their socio-territorial inequalities among the French population aged 18–75 years between 2017 and 2021.

Methods

Self-reported health (SRH) and global activity limitation indicator (GALI) were assessed in the same way in the four last editions of the French Health Barometer surveys conducted in the general population in 2017, 2019, 2020, and 2021, with between 9,200 and 24,500 subjects interviewed depending on the year. The prevalence of good or very good SRH and GALI (any limitation) and their evolution between 2017 and 2021 were studied according to sex, age, main socioeconomic positions (SEP), and regions. Poisson regression models were used to estimate adjusted prevalence ratios and potential modification effects of sociodemographic and geographic characteristics.

Results

Between 2017 and 2021, SRH and GALI deteriorated in adults in France in a continuous way. Very good or good SRH decreased from 75.2% (CI95% [74.5–75.9]) of subjects in 2017 to 68.5% (CI95% [67.7–69.3]) in 2021. In parallel, GALI increased from 21.5% (CI95% [21.0–22.2) in 2017 to 25.2% (CI95% [24.5–26.0]) in 2021.The deterioration of indicators affected both sexes, all age classes (except 65–75 years), especially younger age classes (18–24 and 25–34 years), all geographical regions, and all SEP variables, with groups with a higher SEP deteriorating more than others. Negative variations exceeding 20% (8–10 percentage points on the absolute scale of indicators) were observed in several population groups from 2019 onwards.

Conclusion

The previously observed deterioration of the SRH and GALI continued in France between 2017 and 2021, with narrowing socio-territorial gradients of inequalities. The impact of successive social and health crises on the poor evolution of self-reported health and activity limitations warrants further investigation over time and across locations using complementary and possibly more detailed indicators.
Prevalence and perception of pre-morbid lifestyle-related risk factors among covid-19 survivors in Lagos state and Abuja capital city of Nigeria
Authors: Monye Ifeoma N , Oseni Tijani Idris Ahmad , Makinde Moyosore T. , Adelowo Abiodun B. , Yahaya-Kongoila Safiya , Njoku-Adeleke Marvellous C. , Oteju Aramide , Nyirenda Samba , Elebiyo Temitayo O. , Dozie Ijeoma Judith , Ugwuegbulem-Amadi Chinasa T.
Published: July 2024

Introduction

This study investigated the prevalence and perception of premorbid lifestyle-related risk factors among Covid-19 Survivors in Abuja and Lagos, Nigeria.

Methodology

A cross-sectional descriptive survey design was used to collect data from 522 consenting adult Covid-19 survivors in Abuja (274) and Lagos (248), Nigeria, using a self-developed, close-ended and validated questionnaire called the Lifestyle-related Factors in Covid-19 Questionnaire (LFC-19 Questionnaire) through a multistage sampling technique. Descriptive and inferential statistical analysis was done using the Statistical Package for Social Science (SPSS) with P value set at ≤ 0.05. Ethical approval was obtained for the study.

Results

A significant number of Covid-19 Survivors were overweight/obese (67.8%) and had a history of physical inactivity (73.8%). A small proportion had premorbid chronic diseases (23.8%) as well as pre-existing lifestyle-related risk factors such as inadequate consumption of fruits (67.2%) and vegetables (60.0%) and physical inactivity (73.8%).

Conclusion

This study revealed that most Covid-19 survivors residing in Lagos State and in Abuja capital city of Nigeria were either overweight or obese. This was due to physical inactivity, an unhealthy diet consisting of low fruit and vegetable consumption and poor sleep. Additionally, the study showed that patients’ perceptions of their risk factors were often inaccurate as it differed from what was measured. The findings from this study will assist public health professionals and clinicians in designing and implementing more effective Covid-19 management strategies that incorporate healthy lifestyle practices and lifestyle modifications and assist public health promotion and communication specialists in designing appropriate and evidence-based preventive messages.
Challenges and coping strategies when caring for terminally ill persons with cancer: perspectives of family caregivers
Authors: Biney Antoinette , Sarfo Jacob Owusu , Poku Collins Atta , Deegbe David Atsu , Atibila Fidelis , Ti-enkawol Nachinab Gilbert , Anaba Emmanuel , Dzansi Gladys , Attafuah Priscilla Yeye Adumoah
Published: July 2024

Introduction

Terminal illness is an irreversible illness that, without life-sustaining procedures, usually results in death or permanent disability from which recovery is unlikely. When involved, family caregivers are believed to improve health outcomes, such as reduced hospitalization, and establishing a patient’s initial access to professional treatment services. However, caring for a patient with a terminal illness is viewed as one of the most difficult aspects of providing care. This study aimed to identify the challenges, and coping strategies developed by family caregivers to cope with the care of the terminally ill person.

Methods

An exploratory descriptive qualitative approach was used. Twenty (20) family caregivers voluntarily participated in the study from the Korle-Bu Teaching Hospital. Semi-structured interviews were conducted with the participants. The transcribed interviews were then analysed using thematic analysis.

Results

From the analysis, three main themes emerged: challenges, coping strategies, and social support. These themes encompassed sixteen subthemes including financial burden, bad health conditions, faith and prayer, and support from health professionals. From the study, both male and female family caregivers narrated that providing care for sick relatives undergoing terminal disease is characterized as a daily duty demanding one’s time and fraught with emotional strain. In addition, even though it was a difficult job, family members who provided care for ailing relatives never gave up, citing responsibility, the importance of family, and religious beliefs as the primary motivations for doing so.

Conclusion

The difficulties and demands of family caregiving roles for terminally ill relatives are complex and multifactorial. The findings call for multidisciplinary professional attention for family caregivers and policies that will support their lives holistically.
Identifying innovations produced by primary health care centers and evaluating their scalability: the SPRINT Occitanie cross-sectional study in France
Authors: Vandeventer Alexis , Mercier Grégoire , Bonnel Christophe , Pissarra Joana , Ninot Grégory , Carbonnel François
Published: July 2024

Background

Practice-based research is one of the levers identified by the World Health Organization (WHO) to strengthen primary health care. The scaling of health and social care innovations has the potential to reduce inequities in health and to expand the benefits of effective innovations. It is now rapidly gaining the attention of decision-makers in health and social care, particularly in high-income countries.

To meet the challenge of declining numbers of primary care physicians in France, Multi-professional Healthcare Centers (MHC) were created to bring together medical and paramedical professionals. They are a source of innovation in meeting the health challenges facing our populations.

Specific methodology exists to identify health innovations and assess their scalability. A working group, including end-users and specialists, has adapted this methodology to the French context and the University department of general practice of Montpellier-Nîmes (France) launched a pilot study in Occitanie, a French region.

Objective

To identify and evaluate the scalability of innovations produced in pluri-professional healthcare centers in the Occitanie region.

Methods

A pilot, observational, cross-sectional study was carried out. The SPRINT Occitanie study was based on a questionnaire with two sections: MHC information and the modified Innovation Scalability Self-Administered Questionnaire (ISSaQ), version 2020. The study population was all 279 MHC in the Occitanie region.

Results

19.3% (54) of MHC in the Occitanie region, responded fully or incompletely to the questionnaire. Four out of 5 U-MHCs were represented. Five MHC presented multiple innovations. The average per MHC was 1.94 (± 2.4) innovations. 26% of them (n = 9) had high scalability, 34% (n = 12) medium scalability and 40% (n = 14) low scalability. The main innovation represented (86%) were healthcare program, service, and tool.

Conclusions

In our cross-sectional study, a quarter of the innovations were highly scalable. We were able to demonstrate the importance of MHC teams in working on primary care research through the prism of innovations. Primary-care innovations must be detected, evaluated, and extracted to improve their impact on their healthcare system.
Health care workers’ experiences of calling-for-help when taking care of critically ill patients in hospitals in Tanzania and Kenya
Authors: Mkumbo Elibariki Godfrey , Willows Tamara Mulenga , Odongo Onyango Onesmus , Khalid Karima , Maiba John , Schell Carl Otto , Oliwa Jacquie , McKnight Jacob , Baker Tim
Published: July 2024

Background

When caring for critically ill patients, health workers often need to ‘call-for-help’ to get assistance from colleagues in the hospital. Systems are required to facilitate calling-for-help and enable the timely provision of care for critically ill patients. Evidence around calling-for-help systems is mostly from high income countries and the state of calling-for-help in hospitals in Tanzania and Kenya has not been formally studied. This study aims to describe health workers’ experiences about calling-for-help when taking care of critically ill patients in hospitals in Tanzania and Kenya.

Methods

Ten hospitals across Kenya and Tanzania were visited and in-depth interviews conducted with 30 health workers who had experience of caring for critically ill patients. The interviews were transcribed, translated and the data thematically analyzed.

Results

The study identified three thematic areas concerning the systems for calling-for-help when taking care of critically ill patients: 1) Calling-for-help structures: there is lack of functioning structures for calling-for-help; 2) Calling-for-help processes: the calling-for-help processes are innovative and improvised; and 3) Calling-for-help outcomes: the help that is provided is not as requested.

Conclusion

Calling-for-help when taking care of a critically ill patient is a necessary life-saving part of care, but health workers in Tanzanian and Kenyan hospitals experience a range of significant challenges. Hospitals lack functioning structures, processes for calling-for-help are improvised and help that is provided is not as requested. These challenges likely cause delays and decrease the quality of care, potentially resulting in unnecessary mortality and morbidity.
Perceptions and practices of Swedish wild boar hunters in relation to African swine fever before the first outbreak in Sweden
Authors: Chenais Erika , Ernholm Linda , Brunzell Annie Frisk , Mård Karl , Svensson Lotta , Lindahl Johanna F. , Lewerin Susanna Sternberg
Published: July 2024

Background

The first outbreak of African Swine Fever (ASF) in Sweden was detected in 2023 in wild boar. This study was conducted before the first ASF outbreak with the objective of investigating Swedish hunters’ perceptions and practices pertaining to ASF ahead of any potential future outbreak.

A mixed-methods interview study with Swedish wild boar hunters, consisting of focus group discussions and a questionnaire, was undertaken between October 2020 and December 2021. Six focus groups were conducted online, and an online questionnaire with questions related to practices and habits concerning hunting, the use of bait and hunting trips was sent to all members of the Swedish Hunting and Wildlife Association. A total of 3244 responses were received.

Results

Three general themes were identified in a thematic analysis of the data from the focus groups: hunters are willing to engage in ASF prevention and control, simplicity and feasibility are crucial for the implementation of reporting, sampling and control measures, and more information and the greater involvement of the authorities are required in ASF prevention and control. Results from the questionnaire showed that the use of bait was common. Products of animal origin were rarely used for baiting; the most common product used was maize. Hunting trips abroad, especially outside of the Nordic countries, were uncommon.

Conclusions

Hunting tourism and the use of bait do not seem to constitute a major risk for the introduction of ASF to wild boar populations in Sweden. The accessibility of relevant information for each concerned stakeholder and the ease of reporting and sampling are crucial to maintain the positive engagement of hunters.
A novel splice-altering TNC variant (c.5247A > T, p.Gly1749Gly) in an Chinese family with autosomal dominant non-syndromic hearing loss
Authors: He Min , Hu Miaomiao , Zhang Qiang , Yao Kai
Published: July 2024

Background

This study aims to analyze the pathogenic gene in a Chinese family with non-syndromic hearing loss and identify a novel mutation site in the TNC gene.

Methods

A five-generation Chinese family from Anhui Province, presenting with autosomal dominant non-syndromic hearing loss, was recruited for this study. By analyzing the family history, conducting clinical examinations, and performing genetic analysis, we have thoroughly investigated potential pathogenic factors in this family. The peripheral blood samples were obtained from 20 family members, and the pathogenic genes were identified through whole exome sequencing. Subsequently, the mutation of gene locus was confirmed using Sanger sequencing. The conservation of TNC mutation sites was assessed using Clustal Omega software. We utilized functional prediction software including dbscSNV_AdaBoost, dbscSNV_RandomForest, NNSplice, NetGene2, and Mutation Taster to accurately predict the pathogenicity of these mutations. Furthermore, exon deletions were validated through RT-PCR analysis.

Results

The family exhibited autosomal dominant, progressive, post-lingual, non-syndromic hearing loss. A novel synonymous variant (c.5247A > T, p.Gly1749Gly) in TNC was identified in affected members. This variant is situated at the exon–intron junction boundary towards the end of exon 18. Notably, glycine residue at position 1749 is highly conserved across various species. Bioinformatics analysis indicates that this synonymous mutation leads to the disruption of the 5' end donor splicing site in the 18th intron of the TNC gene. Meanwhile, verification experiments have demonstrated that this synonymous mutation disrupts the splicing process of exon 18, leading to complete exon 18 skipping and direct splicing between exons 17 and 19.

Conclusion

This novel splice-altering variant (c.5247A > T, p.Gly1749Gly) in exon 18 of the TNC gene disrupts normal gene splicing and causes hearing loss among HBD families.
MHQ: constructing an aggregate metric of population mental wellbeing
Authors: Newson Jennifer Jane , Sukhoi Oleksii , Thiagarajan Tara C.
Published: July 2024

Background

According to the World Health Organization (WHO), mental health is ‘a state of wellbeing in which the individual realizes his or her own abilities, can cope with the normal stresses of life, can work productively and fruitfully, and is able to make a contribution to his or her community’. Any population metric of mental health and wellbeing should therefore not only reflect the presence or absence of mental challenges but also a person’s broad mental capacity and functioning across a range of cognitive, social, emotional and physical dimensions. However, while existing metrics of mental health typically emphasize ill health, existing metrics of wellbeing typically focus on happiness or life satisfaction, indirectly infer wellbeing from a selection of social and economic factors, or do not reflect a read out of the full spectrum of mental functioning that impacts people’s everyday life and that spans the continuum from distress and the inability to function, through to the ability to function to one’s full potential.

Methods

We present the Mental Health Quotient, or MHQ, a population metric of mental wellbeing that comprehensively captures mental functioning, and examine how it relates to functional productivity. We describe the 47-item assessment and the life impact rating scale on which the MHQ metric is based, as well as the rationale behind each step of the nonlinear algorithm used to construct the MHQ metric.

Results

We demonstrate a linear relationship between the MHQ metric and productive life function where movement on the scale from any point or in any direction relates to an equivalent shift in productive ability at the population level, a relationship that is not borne out using simple sum scores. We further show that this relationship is the same across all age groups. Finally, we demonstrate the potential for the types of insights arising from the MHQ metric, offering examples from the Global Mind Project, an initiative that aims to track and understand our evolving mental wellbeing, and since 2020 has collected responses from over 1 million individuals across 140 + countries.

Conclusion

The MHQ is a metric of mental wellbeing that aligns with the WHO definition and is amenable to large scale population monitoring.
Involvement of the choroid plexus in Alzheimer’s disease pathophysiology: findings from mouse and human proteomic studies
Authors: Delvenne Aurore , Vandendriessche Charysse , Gobom Johan , Burgelman Marlies , Dujardin Pieter , De Nolf Clint , Tijms Betty M. , Teunissen Charlotte E. , Schindler Suzanne E. , Verhey Frans , Ramakers Inez , Martinez-Lage Pablo , Tainta Mikel , Vandenberghe Rik , Schaeverbeke Jolien , Engelborghs Sebastiaan , De Roeck Ellen , Popp Julius , Peyratout Gwendoline , Tsolaki Magda , Freund-Levi Yvonne , Lovestone Simon , Streffer Johannes , Bertram Lars , Blennow Kaj , Zetterberg Henrik , Visser Pieter Jelle , Vandenbroucke Roosmarijn E. , Vos Stephanie J. B.
Published: July 2024

Background

Structural and functional changes of the choroid plexus (ChP) have been reported in Alzheimer’s disease (AD). Nonetheless, the role of the ChP in the pathogenesis of AD remains largely unknown. We aim to unravel the relation between ChP functioning and core AD pathogenesis using a unique proteomic approach in mice and humans.

Methods

We used an APP knock-in mouse model, APPNL-G-F, exhibiting amyloid pathology, to study the association between AD brain pathology and protein changes in mouse ChP tissue and CSF using liquid chromatography mass spectrometry. Mouse proteomes were investigated at the age of 7 weeks (n = 5) and 40 weeks (n = 5). Results were compared with previously published human AD CSF proteomic data (n = 496) to identify key proteins and pathways associated with ChP changes in AD.

Results

ChP tissue proteome was dysregulated in APPNL-G-F mice relative to wild-type mice at both 7 and 40 weeks. At both ages, ChP tissue proteomic changes were associated with epithelial cells, mitochondria, protein modification, extracellular matrix and lipids. Nonetheless, some ChP tissue proteomic changes were different across the disease trajectory; pathways related to lysosomal function, endocytosis, protein formation, actin and complement were uniquely dysregulated at 7 weeks, while pathways associated with nervous system, immune system, protein degradation and vascular system were uniquely dysregulated at 40 weeks. CSF proteomics in both mice and humans showed similar ChP-related dysregulated pathways.

Conclusions

Together, our findings support the hypothesis of ChP dysfunction in AD. These ChP changes were related to amyloid pathology. Therefore, the ChP could become a novel promising therapeutic target for AD.
Burden of illness and mortality in men with Adrenomyeloneuropathy: a retrospective cohort study
Authors: Bonkowsky Joshua L. , Healey Bridget , Sacks Naomi C. , McLin Ronaé , Cyr Philip L. , Sawyer Eileen K. , Stephen Christopher D. , Eichler Florian
Published: July 2024

Background

Adrenomyeloneuropathy (AMN) is a neurodegenerative disease phenotype of X-linked adrenoleukodystrophy (ALD), resulting in progressive myeloneuropathy causing spastic paraparesis, sensory ataxia, and bowel/bladder symptoms. We conducted a retrospective cohort study using two large administrative databases to characterize mortality and the burden of illness in adult men with AMN in the US.

Results

Healthcare resource use was assessed using a national commercial insurance claims database (2006–2021). Males with AMN ages 18–64 years and no evidence of cerebral ALD or other peroxisomal disorders were included and 1:4 matched on demographic characteristics to individuals without AMN. All study participants were followed for as long as observable. Patients with AMN were also identified in the Medicare Limited Dataset (2017–2022); mortality and age at death were compared with all Medicare enrollees. We identified 303 commercially insured men with AMN. Compared with non-AMN, individuals with AMN had significantly more inpatient hospital admissions (0.44 vs. 0.04 admissions/patient/year), outpatient clinic (8.88 vs. 4.1 visits/patient/year), outpatient hospital (5.33 vs. 0.99 visits/patient/year), and home healthcare visits (4.66 vs. 0.2 visits/patient/year), durable medical equipment claims (0.7 vs. 0.1 claims/patient/year), and prescription medication fills (18.1 vs. 5.4 fills/patient/year) (all p < 0.001). Average length-of-stay per hospitalization was also longer in AMN (8.88 vs. 4.3 days; p < 0.001). Rates of comorbidities were significantly more common in AMN compared to controls, including peripheral vascular disease (4.6% vs. 0.99%), chronic pulmonary disease (6.3% vs. 2.6%), and liver disease (5.6% vs. 0.88%), all p < 0.001. Among individuals age < 65 with Medicare disability coverage, mortality rates were 5.3x higher for adult AMN males (39.3% vs. 7.4%) and the age at death significantly younger (47.0 ± 11.3 vs. 56.5 ± 7.8 years), both p < 0.001. Among Medicare beneficiaries ages ≥ 65 mortality rates were 2.2x higher for men with AMN vs. those without AMN (48.6% vs. 22.4%), p < 0.001.

Conclusion

AMN imposes a substantial and underrecognized health burden on men, with higher healthcare utilization, greater medical comorbidity, higher mortality rates, and younger age at death.
Diagnostic landscape of first-time cytometric screening for paroxysmal nocturnal hemoglobinuria in Poland in 2013–2022
Authors: Spychalska Justyna , Duńska Magdalena , Myślińska Anna , Majewska-Wierzbicka Monika , Klimczak-Jajor Edyta , Głodkowska-Mrówka Eliza
Published: July 2024

Background

Paroxysmal nocturnal hemoglobinuria (PNH) is an acquired hematopoietic stem cell disorder characterized by PIG-A mutations, leading to glycophosphatidylinositol (GPI)-anchored proteins deficiency that triggers hemolysis – a hallmark of the disease. PNH diagnostics is based on high-sensitivity multicolor flow cytometry (MFC), enabling to detect even small populations of PNH cells. In this single-center, retrospective study, we aimed to characterize a cohort of PNH clone-positive patients first time screened from January 1st, 2013 until December 31st, 2022 with MFC according to International Clinical Cytometry Society PNH Consensus Guidelines.

Results

Out of 2790 first-time screened individuals, the presence of PNH clone in neutrophils was detected in 322 patients, including 49 children and 273 adults. Annual incidence was stable at a median of 31 patients (14 and 19 with clone sizes ≤ 1% and > 1%, respectively), with a decline in number of patients with clone sizes > 1% observed in 2020, potentially influenced by the COVID-19 pandemic. The most common screening indications were aplastic anemia and other cytopenias.

Conclusions

A significant underrepresentation of hemolytic patients was observed as compared to the published cohorts suggesting that these patients are missed in diagnostic process and classic PNH remains underdiagnosed in Poland.
Antimicrobial resistance among indicator Enterococcus faecium and Escherichia coli in Swedish pig farms
Authors: Ladyhina Valeriia , Sternberg-Lewerin Susanna , Andersson Linus , Rajala Elisabeth
Published: July 2024

Monitoring the use of antimicrobials and the emergence of resistance in animals and people is important for the control of antimicrobial resistance, and for establishing sustainable and effective disease management practices. In this study, we used Enterococcus spp. and Escherichia coli as indicator species to investigate antimicrobial susceptibility patterns and how these change over time, on ten Swedish pig farms. Indoor environmental sock sampling was performed once a month during the entire production cycle of one batch of pigs on each farm, resulting in 60 samples collected in total. Selective culture for E. coli and Enterococcus spp. resulted in 122 isolates of E. coli, 74 isolates of E. faecium, but no isolates of E. faecalis. Microdilution was used to determine minimum inhibitory concentrations for twelve antimicrobial substances in E. coli and fifteen substances in E. faecium. The overall prevalence of resistance was low. Among the E. coli isolates, the proportions non-wild type (resistant, NWT) isolates were as follows: azithromycin and amikacin 1% (n = 1), trimethoprim and sulfamethoxazole 2% (n = 3), ampicillin 6% (n = 7) and tetracycline 9% (n = 11). Among the E. faecium isolates, the NWT proportions were: teicoplanin, linezolid and gentamicin 1% (n = 1), daptomycin 3% (n = 2), erythromycin 26% (n = 19), tetracycline 27% (n = 20), quinupristin/dalfopristin 58% (n = 42). The resistance patterns differed between the farms, likely due to different antimicrobial use, biosecurity measures and source of the animals. The NWT prevalence among E. coli decreased over time, whereas no similar trend could be observed in E. faecium. The results of the current study illustrate the complex factors affecting the antimicrobial resistance patterns observed on each farm, indicating that specific practices and risk factors have an impact on the prevalence and type of antimicrobial resistance. Further studies of the farm environments in combination with antimicrobial use and other risk factor data are needed to elucidate the multifaceted drivers of antimicrobial resistance development on livestock farms.
The role of vitamin D3 in follicle development
Authors: Li Mingxia , Hu Shuhui , Sun Jiaxiang , Zhang Ying
Published: July 2024

Vitamin D3 plays a crucial role in female reproduction. As research progresses, the mechanisms of action of vitamin D3 on follicular development have been widely discussed. Firstly, key enzymes involved in the synthesis and metabolism of vitamin D3 have been discovered in the ovary, suggesting that vitamin D3 can be synthesized and metabolized locally within the ovary. Additionally, the detection of vitamin D3 receptors (VDR) in follicles suggests that vitamin D3 may exert its effects by binding specifically to these receptors during follicular development. Further research indicates that vitamin D3 promotes follicular growth by enhancing the development of granulosa cells (GCs) and oocytes. Currently, the mechanism of action of vitamin D3 in follicular development is becoming increasingly clear. Vitamin D3 promotes oocyte development by regulating molecules involved in meiotic arrest in oocytes. It also enhances granulosa cell proliferation by stimulating steroid hormone synthesis and cell cycle regulation. Additionally, vitamin D3 exerts anti-inflammatory effects by reducing oxidative stress and advanced glycation end-products (AGEs), mitigating the detrimental effects of inflammation on follicular development. These functions of vitamin D3 have clinical applications, such as in treating polycystic ovary syndrome (PCOS), improving female fertility, and enhancing outcomes in in vitro fertilization (IVF). This review summarizes the research progress on the role and mechanisms of vitamin D3 in follicular development and briefly summarizes its clinical applications.
Separate hydrolysis and fermentation of softwood bark pretreated with 2-naphthol by steam explosion
Authors: Averheim Andreas , Stagge Stefan , Jönsson Leif J. , Larsson Sylvia H. , Thyrel Mikael
Published: July 2024

Background

2-Naphthol, a carbocation scavenger, is known to mitigate lignin condensation during the acidic processing of lignocellulosic biomass, which may benefit downstream processing of the resulting materials. Consequently, various raw materials have demonstrated improved enzymatic saccharification yields for substrates pretreated through autohydrolysis and dilute acid hydrolysis in the presence of 2-naphthol. However, 2-naphthol is toxic to ethanol-producing organisms, which may hinder its potential application. Little is known about the implications of 2-naphthol in combination with the pretreatment of softwood bark during continuous steam explosion in an industrially scalable system.

Results

The 2-naphthol-pretreated softwood bark was examined through spectroscopic techniques and subjected to separate hydrolysis and fermentation along with a reference excluding the scavenger and a detoxified sample washed with ethanol. The extractions of the pretreated materials with water resulted in a lower aromatic content in the extracts and stronger FTIR signals, possibly related to guaiacyl lignin, in the nonextractable residue when 2-naphthol was used during pretreatment. In addition, cyclohexane/acetone (9:1) extraction revealed the presence of pristine 2-naphthol in the extracts and increased aromatic content of the nonextractable residue detectable by NMR for the scavenger-pretreated materials. Whole-slurry enzymatic saccharification at 12% solids loading revealed that elevated saccharification recoveries after 48 h could not be achieved with the help of the scavenger. Glucose concentrations of 16.9 (reference) and 15.8 g/l (2-naphthol) could be obtained after 48 h of hydrolysis. However, increased inhibition during fermentation of the scavenger-pretreated hydrolysate, indicated by yeast cell growth, was slight and could be entirely overcome by the detoxification stage. The ethanol yields from fermentable sugars after 24 h were 0.45 (reference), 0.45 (2-naphthol), and 0.49 g/g (2-naphthol, detoxified).

Conclusion

The carbocation scavenger 2-naphthol did not increase the saccharification yield of softwood bark pretreated in an industrially scalable system for continuous steam explosion. On the other hand, it was shown that the scavenger's inhibitory effects on fermenting microorganisms can be overcome by controlling the pretreatment conditions to avoid cross-inhibition or detoxifying the substrates through ethanol washing. This study underlines the need to jointly optimize all the main processing steps.
Spatial intra-tumour heterogeneity and treatment-induced genomic evolution in oesophageal adenocarcinoma: implications for prognosis and therapy
Authors: Brosda Sandra , Aoude Lauren G. , Bonazzi Vanessa F. , Patel Kalpana , Lonie James M. , Belle Clemence J. , Newell Felicity , Koufariotis Lambros T. , Addala Venkateswar , Naeini Marjan M. ,   AGITG DOCTOR Investigators, Simes John , Walpole Euan T. , Mai Gang T. , Watson David I. , Karapetis Chris S. , Gebski Val , Barnes Elizabeth H. , Oostendorp Martijn , Wilson Kate , Ackland Stephen P. , Shannon Jenny , Marx Gavin , Burge Matthew , Finch Robert , Thomas Janine , Varma Suresh , Nott Louise , Pearson John V. , Krause Lutz , Waddell Nicola , Barbour Andrew P.
Published: July 2024

Background

Oesophageal adenocarcinoma (OAC) is a highly heterogeneous cancer with poor survival. Standard curative treatment is chemotherapy with or without radiotherapy followed by oesophagectomy. Genomic heterogeneity is a feature of OAC and has been linked to treatment resistance.

Methods

Whole-genome sequencing data from 59 treatment-naïve and 18 post-treatment samples from 29 OAC patients was analysed. Twenty-seven of these were enrolled in the DOCTOR trial, sponsored by the Australasian Gastro-Intestinal Trials Group. Two biopsies from each treatment-naïve tumour were assessed to define ‘shared’ (between both samples) and ‘private’ (present in one sample) mutations.

Results

Mutational signatures SBS2/13 (APOBEC) and SBS3 (BRCA) were almost exclusively detected in private mutation populations of treatment-naïve tumours. Patients presenting these signatures had significantly worse disease specific survival. Furthermore, mutational signatures associated with platinum-based chemotherapy treatment as well as high platinum enrichment scores were only detected in post-treatment samples. Additionally, clones with high putative neoantigen binding scores were detected in some treatment-naïve samples suggesting immunoediting of clones.

Conclusions

This study demonstrates the high intra-tumour heterogeneity in OAC, as well as indicators for treatment-induced changes during tumour evolution. Intra-tumour heterogeneity remains a problem for successful treatment strategies in OAC.
The U-shape relationship between insulin resistance-related indexes and chronic kidney disease: a retrospective cohort study from National Health and Nutrition Examination Survey 2007–2016
Authors: Shen Ruihua , Lin Ling , Bin Zexuan , Qiao Xi
Published: July 2024

Background

There is ongoing debate on the correlation between chronic kidney disease (CKD) and insulin resistance (IR)-related indices. Our objective was to explore the prognostic ability of IR-related indexes for the prevalence of CKD, as well as the mortality from all causes and cardiovascular disease (CVD) in CKD patients.

Methods

The data used in this study came from the National Health and Nutrition Examination Survey (NHANES). Binary logistic regression analysis, Cox proportional hazards model, and restricted cubic spline (RCS) were used to analyze the relationship between IR-related indexes, including metabolic score of IR (METS-IR), homeostatic model assessment for IR (HOMA-IR), triglyceride glucose index (TyG), triglyceride glucose-waist-to-height ratio (TyG-WHtR), triglyceride glucose-body mass index (TyG-BMI), with CKD and its all-cause mortality and CVD mortality. Subgroup analysis was performed to test the stability of the results. Finally, the predictive power of IR-related indexes for CKD was tested by the receiver operating characteristic (ROC) curve.

Results

Among the recruited 10,660 participants, 15.42% were CKD patients. All IR-related indexes were found to be nonlinearly correlated to the prevalence of CKD in the study. When the TyG index was higher than 9.05, it was positively associated with CKD (OR: 1.77, 95% CI 1.44–2.18). Moreover, increased TyG-WHtR level was correlated with a greater prevalence of CKD when it was higher than 4.3 (OR: 1.31, 95% CI 1.19–1.45). Other IR-related indexes (METS-IR, HOMA-IR, and TyG-BMI) showed fewer notable correlations with CKD. The association of IR-related indexes and the prevalence of CKD remained consistent in most subgroups (P for interactions > 0.05). TyG-WHtR was also the predictor of all-cause mortality in CKD patients (HR: 1.34, 95% CI 1.14–1.58), while other IR-related indexes were not correlated with the all-cause mortality or CVD mortality in CKD patients (P > 0.05). Otherwise, ROC curves showed that TyG-WHtR had more robust diagnostic efficacy than other IR-related indexes (METS-IR, HOMA-IR, TyG, and TyG-BMI) in predicting CKD (area under the curve: 0.630, 95% CI 0.615–0.644).

Conclusions

IR-related biomarkers (METS-IR, HOMA-IR, TyG, and TyG-BMI) were positively correlated with the prevalence of CKD. Moreover, TyG-WHtR enhanced CKD and its all-cause mortality prediction. In patients with elevated levels of IR-related indexes, the early detection and intervention of IR may reduce the occurrence of CKD and the prognosis of CKD patients.
Validity of the estimated angular information obtained using an inertial motion capture system during standing trunk forward and backward bending
Authors: Morikawa Taiki , Mura Nariyuki , Sato Toshiaki , Katoh Hiroshi
Published: July 2024

Background

Bending the trunk forward and backward while standing are common daily activities and can have various patterns. However, any dysfunction in these movements can considerably affect daily living activities. Consequently, a comprehensive evaluation of spinal motion during these activities and precise identification of any movement abnormalities are important to facilitate an effective rehabilitation. In recent years, with the development of measurement technology, the evaluation of movement patterns using an inertial motion capture system (motion sensor) has become easy. However, the accuracy of estimated angular information obtained via motion sensor measurements can be affected by angular velocity. This study aimed to compare the validity of estimated angular information obtained by assessing standing trunk forward and backward bending at different movement speeds using a motion sensor with a three-dimensional motion analysis system.

Methods

The current study included 12 healthy older men. A three-dimensional motion analysis system and a motion sensor were used for measurement. The participants performed standing trunk forward and backward bending at comfortable and maximum speeds, and five sensors were attached to their spine. Statistical analysis was performed using the paired t-test, intraclass correlation coefficient, mean absolute error, and multiple correlation coefficient.

Results

Results showed that the estimated angular information obtained using each motion sensor was not affected by angular velocity and had a high validity.

Conclusions

Therefore, the angular velocity in this study can be applied clinically for an objective evaluation in rehabilitation.
Age and gender effects on striatal dopamine transporter density and cerebral perfusion in individuals with non-degenerative parkinsonism: a dual-phase 18F-FP-CIT PET study
Authors: Kim Ji-Young , Kang Seo Young , Moon Byung Seok , Kim Bom Sahn , Jeong Jee Hyang , Yoon Hai-Jeon
Published: July 2024

Background

Dual-phase fluorine-18 labeled N-3-fluoropropyl-2β-carbomethoxy-3β-(4-iodophenyl) nortropane (18F-FP-CIT) positron emission tomography (PET) scans could be used to support disorders like Parkinson’s disease (PD). Dopamine transporter (DAT) binding and cerebral perfusion are associated with ageing and gender. We investigated the effects of age and gender on non-degenerative parkinsonism, using automated quantification in striatum: specific binding ratios (SBRs) for DAT binding in delayed phase PET (dCIT) and standardized-uptake-value ratios (SUVRs) for cerebral perfusion in early phase PET (eCIT). We also examined the correlations between SBR and SUVR.

Methods

This retrospective study analyzed subjects with dual-phase 18F-FP-CIT PET scans. The eCIT images were acquired immediately post-injection, and dCIT images were taken 120 min later. With Brightonix software, automated quantification of SBRs for dCIT and SUVRs for eCIT were acquired from visually normal scans. The effects of aging and gender were assessed by regressing SBRs and SUVRs on age for both genders. The correlations between SUVRs and SBRs were evaluated.

Results

We studied 79 subjects (34 males and 45 females). An age-related reduction in SBRs was observed in the dorsal striatum, ventral striatum, caudate nucleus, and putamen for both genders. SUVRs were found to negatively correlate with age in the dorsal striatum, ventral striatum, caudate nucleus, and putamen for males and in the dorsal striatum and caudate nucleus for females. Positive correlations between SBRs and SUVRs in the dorsal striatum, ventral striatum, caudate nucleus, and putamen for male and in the dorsal striatum, caudate nucleus, and putamen for females.

Conclusions

Using quantified values from dual-phase 18F-FP-CIT PET with a single injection, we demonstrate a negative impact of age on SBRs (DAT binding) in the striatum for both genders and SUVRs (cerebral perfusion) in the dorsal striatum and caudate nucleus for both genders and in the ventral striatum and putamen for males. Additionally, we found positive associations between SBR and SUVR values in the dorsal striatum, caudate nucleus, and putamen for both genders and in the ventral striatum for males.
A simplified and controllable model of mode coupling for addressing nonlinear phenomena in sound synthesis processes
Authors: Poirot Samuel , Bilbao Stefan , Kronland-Martinet Richard
Published: July 2024

This paper introduces a simplified and controllable model for mode coupling in the context of modal synthesis. The model employs efficient coupled filters for sound synthesis purposes, intended to emulate the generation of sounds radiated by sources under strongly nonlinear conditions. Such filters generate tonal components in an interdependent way and are intended to emulate realistic perceptually salient effects in musical instruments in an efficient manner. The control of energy transfer between the filters is realized through a coupling matrix. The generation of prototypical sounds corresponding to nonlinear sources with the filter bank is presented. In particular, examples are proposed to generate sounds corresponding to impacts on thin structures and to the perturbation of the vibration of objects when it collides with an other object. The sound examples presented in the paper and available for listening on the accompanying site illustrate that a simple control of the input parameters allows the generation of sounds whose evocation is coherent and that the addition of random processes yields a significant improvement to the realism of the generated sounds.
Bi-valve braces for treatment of pectus carinatum in teenagers: impact on patients quality of life
Authors: Mauduit Marion , Chermat Anaëlle , Rojas Dorian , Rouzé Simon , Delatour Bertrand , Verhoye Jean-Philippe
Published: July 2024

Background

Pectus carinatum may be a major issue for adolescent patients, as chest-wall malformations can have a negative impact on body image and induce self-esteem disorders. Bracing has become the first line treatment for adolescent patients whose anterior chest wall is still flexible. The main obstacle is the tolerability of the bracing device along with the patient’s compliance to the device. The aim of this study was to examine the quality of life of adolescent patients treated with bracing to correct pectus carinatum in our institution. From November 2021 to July 2023, 28 patients with pectus carinatum were treated with bracing therapy in our chest wall deformities unit. We used a bivalve brace, manufactured with computer-aided design. All patients were asked to answer a multiple-choice questionnaire designed to assess how bracing therapy impacts their daily life, treatment compliance, and overall satisfaction. Patients who wore the brace for at least 3 months, and at least 5 days per week and 10 h per day, are defined as compliant with the bracing protocol.

Results

The mean age of the patients was 14 ± 1.36 years. Patients wore the brace for an average of 10.1 ± 6.9 months in the compliance group (n = 18), and 2.2 ± 2.5 months in the non-compliance group (n = 10). Our results show that compliant patients are fairly satisfied of the comfort of the brace, with a limited impact of the device on their daily activities and social life. However, non-compliant patients report the following dissatisfactions regarding the brace: higher pain scores, difficulty in breathing, and issues sleeping with the brace. The compliant patients noted a significant improvement in the appearance of their chest, and were satisfied with the appearance of their chest. The non-compliant patients did not notice any changes.

Conclusions

Compliant patients treated with a bi-valve brace for pectus carinatum seem to have a good quality of life with a limited impact on their daily life and social activities. The bi-valve brace also seems to be an effective therapy in compliant patients.
Introduction and content analysis of "Nurse's voice" WhatsApp group during COVID-19 pandemic: a qualitative study
Authors: Nekoolaltak Maryam , Nasrabadi Alireza Nikbakht , Hatefimoadab Nasim
Published: July 2024

Background

At the beginning of the COVID-19 pandemic in Iran, the School of Nursing and Midwifery of Tehran University of Medical Sciences created several joint virtual groups to connect with people and answer their questions. One of these groups was called "Nurse's Voice,” in which nursing professors answered people's questions. The purpose of the current study was to analyze the content of questions in this WhatsApp group during the COVID-19 pandemic.

Method

This retrospective media content analysis qualitatively analyzed the text of questions and answers extracted from the above-named WhatsApp group.

Results

Out of 629 questions asked, 364 questions (58.0%) were related to COVID-19 and 265 questions (42.0%) were not. Those related to COVID-19 concerned COVID-19 symptoms and diagnosis, prevention and care, fear and worry, and interpretation of laboratory tests. The questions related to prevention and care fell into four subcategories: basic health principles, prevention of COVID-19 infection, care during COVID-19 infection, and care during COVID-19 recovery.

Conclusions

Nursing and midwifery schools can take advantage of the scientific capacity of professors and students for virtual communication and social accountability by integrating telehealth into their curricula. Cyberspace provides an opportunity for people to ask questions anonymously. With the results of the current study, the educational needs of the people during possible future epidemics can be predicted and answered faster. Furthermore, the large number of questions unrelated to COVID-19 indicates the need for counseling and training of the general public by nurses in all situations.
Evolution of the crack patterns in nanostructured films with subsequent wetting and drying cycles
Authors: McIlroy David , Pauchard Ludovic
Published: July 2024

Crack patterns in coatings present various morphologies as a signature of the matter to external stresses. Brittle films generally show a network of connected cracks due to a hierarchical formation process. On the contrary, non-sequential crack growth leads to a different morphology with few junctions. The present work focuses on the evolution of both crack networks under the effect of repeated stresses. The experimental work is performed through porous thin films over subsequent wetting and drying processes. The non-connected network of cracks is investigated through nanostructured films exhibiting compliant and elastic properties. Over repeated stresses, this crack network evolves until it reaches stabilization. The stabilization appears when the cracks stop growing and a shielding effect occurs. This behaviour is compared with a more classical connected network of cracks that do not evolve in the plane under the effect of repeated processes.